kernel/net: allocate socket rings from non-contiguous pages

tcp_input: on RST+ACK in SYN_SENT, unlock the socket mutex before
tcp_drop and leave through .drop_no_socket. tcp_drop frees the socket
and locks that mutex itself, so the network thread hung on it.

Assisted-by: Claude:claude-opus-5
Reviewed-on: #622
Reviewed-by: hidnplayr <hidnplayr@gmail.com>
Reviewed-by: Burer <burer@kolibrios.org>
Co-authored-by: Kiril Lipatov <lipatov.kiril@gmail.com>

.gitea/ansible/playbooks/deploy.yml

@@ -54,3 +54,27 @@
         src: "{{ stable_artifact_path }}/"
         dest: "{{ storage_path }}/../"
         mode: preserve
+
+    # older builds shrink to compressed images and lose their unpacked tree; the newest few keep both
+    - name: Looking for zstd on the storage server
+      ansible.builtin.shell: command -v zstd
+      register: zstd_present
+      changed_when: false
+      failed_when: false
+
+    - name: Requiring zstd for compaction
+      ansible.builtin.assert:
+        that: zstd_present.rc == 0
+        fail_msg: >-
+          zstd is not installed on the storage server, so older builds cannot
+          be compacted. Install it and re-run this build.
+
+    - name: Compacting older builds
+      ansible.builtin.script:
+        cmd: >-
+          ../../utils/compact-builds.sh
+          {{ storage_path | quote }}
+          {{ compact_keep | default(5) | int }}
+          {{ compact_max | default(10) | int }}
+      register: compaction
+      changed_when: "'compacted 0 of' not in compaction.stdout"

.gitea/utils/compact-builds.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-FileCopyrightText: 2026 KolibriOS team
+
+# Shrink older builds on the storage server: compress their images and drop
+# their unpacked tree, which is rebuildable from the commit. sha256sums.txt
+# keeps naming the bare images, so a compacted build has to be decompressed
+# before it can be verified.
+#
+# Layout:  <root>/<version>/<lang>/kolibrios-<descr>-<lang>.{img,iso,raw} -> .zst
+#          <root>/<version>/<lang>/data/                                  -> removed
+#
+# Usage: compact-builds.sh <storage-root> [keep] [max-per-run]
+#        DRY_RUN=1 walks the same selection and changes nothing
+
+set -euo pipefail
+
+root=${1:?storage root required}
+# the build just published is always among these, so an upload in flight is safe
+keep=${2:-5}
+# a build is hundreds of MiB to re-compress: cap the first pass over the backlog
+max=${3:-10}
+dry=${DRY_RUN:-0}
+verb=compacted
+[ "$dry" = 1 ] && verb="would compact"
+
+# --rm drops the source only once the archive is written; the box serves the
+# site over NFS, so compaction yields to it
+compress_image() {
+    nice -n 10 ionice -c3 zstd -12 -T1 -q --rm "$1"
+}
+export -f compress_image
+
+leftovers() {
+    local build=$1
+    find "$build" -mindepth 2 -maxdepth 2 \
+        \( -type d -name data \
+           -o -type f \( -name '*.img' -o -name '*.iso' -o -name '*.raw' \) \) \
+        -print -quit
+}
+
+compacted=0
+pending=0
+
+while IFS= read -r version; do
+    dir="$root/$version"
+    [ -n "$(leftovers "$dir")" ] || continue
+
+    pending=$((pending + 1))
+    [ "$compacted" -lt "$max" ] || continue
+
+    if [ "$dry" = 1 ]; then
+        compacted=$((compacted + 1))
+        echo "$verb $version"
+        continue
+    fi
+
+    # a build holds nine images: one per core, each zstd kept to one thread so
+    # the two levels of parallelism do not fight. Archive before dropping the
+    # tree, so a failure here leaves the build merely uncompacted and the next
+    # run picks it up again
+    find "$dir" -mindepth 2 -maxdepth 2 -type f \
+         \( -name '*.img' -o -name '*.iso' -o -name '*.raw' \) -print0 \
+        | xargs -0 -r -P "$(nproc)" -I{} bash -c 'compress_image "$@"' _ {}
+
+    find "$dir" -mindepth 2 -maxdepth 2 -type d -name data -exec rm -rf {} +
+
+    compacted=$((compacted + 1))
+    echo "$verb $version"
+# <tag>-<commit count>-g<sha>: order by the count, never by mtime
+done < <(find "$root" -mindepth 1 -maxdepth 1 -type d -name '*-*-g*' -printf '%f\n' \
+             | sort -t- -k2,2n | head -n "-$keep")
+
+echo "$verb $compacted of $pending older build(s), $((pending - compacted)) left for the next run"

.gitea/workflows/build.yaml

@@ -128,7 +128,8 @@ jobs:
           fi
 
       # cache restore resets ctimes; realign tup DB to skip a full rebuild,
-      # but keep files changed since the cache's commit dirty so tup rebuilds them
+      # but keep files changed since the cache's commit dirty so tup rebuilds them.
+      # A submodule bump diffs as a bare gitlink, so expand it to its whole subtree
       - name: Sync tup DB with filesystem ctime
         if: steps.check-tup-cache.outputs.cache_restored == 'true'
         run: |
@@ -136,6 +137,10 @@ jobs:
           BASE=$(cat .tup/build-commit 2>/dev/null || true)
           if [ -n "$BASE" ] && git cat-file -e "${BASE}^{commit}" 2>/dev/null; then
             git -c core.quotePath=false diff --name-only "$BASE" HEAD > "$DIRTY"
+            git diff --raw "$BASE" HEAD | awk '$2 == "160000" { print $NF }' |
+            while read -r sub; do
+              git -C "$sub" -c core.quotePath=false ls-files | sed "s|^|$sub/|"
+            done >> "$DIRTY"
             echo "Cache built at $BASE; $(wc -l < "$DIRTY") changed files kept dirty"
             python3 .gitea/utils/sync-tup-ctime.py .tup/db "$DIRTY"
           else

.gitea/workflows/submodule-bump.yaml

@@ -34,10 +34,11 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: true
+          token: ${{ secrets.BOT_TOKEN }}
 
       - name: Bump ${{ matrix.name }} and open PR
         env:
-          TOKEN: ${{ secrets.GITEA_TOKEN }}
+          TOKEN: ${{ secrets.BOT_TOKEN }}
           API: ${{ github.api_url }}
           REPO: ${{ github.repository }}
           NAME: ${{ matrix.name }}

data/Tupfile.lua

@@ -41,10 +41,6 @@ img_files = {
  {"LIB/KMENU.OBJ", "common/lib/kmenu.obj"},
  {"LIB/PIXLIB.OBJ", "common/lib/pixlib.obj"},
  {"MEDIA/AC97SND", "common/media/ac97snd"},
- {"MEDIA/IMGF/IMGF", "common/media/ImgF/ImgF"},
- {"MEDIA/IMGF/CEDG.OBJ", "common/media/ImgF/cEdg.obj"},
- {"MEDIA/IMGF/DITHER.OBJ", "common/media/ImgF/dither.obj"},
- {"MEDIA/IMGF/INVSOL.OBJ", "common/media/ImgF/invSol.obj"},
  {"NETWORK/FTPC.INI", SRC_PROGS .. "/network/ftpc/ftpc.ini"},
  {"NETWORK/FTPD.INI", "common/network/ftpd.ini"},
  {"NETWORK/KNMAP", "common/network/knmap"},
@@ -58,8 +54,7 @@ img_files = {
  {"SETTINGS/FB2READ.INI", "common/settings/fb2read.ini"},
  {"SETTINGS/HA.CFG", SRC_PROGS .. "/other/ha/SETTINGS/HA.CFG"},
  {"SETTINGS/ICON.INI", build_type .. "/settings/icon.ini"},
- {"SETTINGS/KEYMAP.KEY", SRC_PROGS .. "/system/taskbar/KEYMAP.KEY"},
- {"SETTINGS/KOLIBRI.LBL", build_type .. "/settings/kolibri.lbl"},
+ {"SETTINGS/KEYMAP.KEY", VAR_PROGS .. "/system/taskbar/keymap.key.kpack"},
  {"SETTINGS/LANG.INI", build_type .. "/settings/lang.ini"},
  {"SETTINGS/MENU.DAT", build_type .. "/settings/menu.dat"},
  {"SETTINGS/NETWORK.INI", "common/settings/network.ini"},
@@ -273,6 +268,10 @@ extra_files = {
  {"kolibrios/lib/i915_dri.drv", "common/lib/i915_dri.drv"},
  {"kolibrios/media/fplay", "common/media/fplay"},
  {"kolibrios/media/fplay_run", "common/media/fplay_run"},
+ {"kolibrios/media/ImgF/ImgF", "common/media/ImgF/ImgF"},
+ {"kolibrios/media/ImgF/cEdg.obj", "common/media/ImgF/cEdg.obj"},
+ {"kolibrios/media/ImgF/dither.obj", "common/media/ImgF/dither.obj"},
+ {"kolibrios/media/ImgF/invSol.obj", "common/media/ImgF/invSol.obj"},
  {"kolibrios/media/minimp3", "common/media/minimp3"},
  {"kolibrios/media/updf", SRC .. "/contrib/media/updf/build/uPDF"},
  {"kolibrios/media/vttf", "common/media/vttf"},
@@ -487,11 +486,6 @@ tup.append_table(img_files, {
  {"DEVELOP/MTDBG", VAR_PROGS .. "/develop/mtdbg/mtdbg"},
  {"DEVELOP/MSTATE", VAR_PROGS .. "/develop/mstate/mstate"},
  {"DEVELOP/SCANCODE", VAR_PROGS .. "/develop/scancode/scancode"},
- {"DEVELOP/EXAMPLES/CIRCLE", VAR_PROGS .. "/develop/examples/circle/circle"},
- {"DEVELOP/EXAMPLES/COLORREF", VAR_PROGS .. "/demos/colorref/colorref"},
- {"DEVELOP/EXAMPLES/CONGET", VAR_PROGS .. "/develop/libraries/console_coff/examples/test_gets"},
- {"DEVELOP/EXAMPLES/CSLIDE", VAR_PROGS .. "/demos/cslide/cslide"},
- {"DEVELOP/EXAMPLES/THREAD", VAR_PROGS .. "/develop/examples/thread/thread"},
  {"File Managers/KFAR", VAR_PROGS .. "/fs/kfar/kfar"},
  {"File Managers/OPENDIAL", VAR_PROGS .. "/fs/opendial/opendial"},
  {"LOD", VAR_PROGS .. "/fs/lod/lod"},
@@ -598,6 +592,7 @@ tup.append_table(img_files, {
  {"DRIVERS/VT823X.SYS", VAR_DRVS .. "/audio/vt823x.sys"},
  {"DRIVERS/SIS.SYS", VAR_DRVS .. "/audio/sis.sys"},
  {"DRIVERS/SDHCI.SYS", "../drivers/sdhci/sdhci.sys"},
+ {"DRIVERS/I2CHID.SYS", VAR_DRVS .. "/i2chid/i2chid.sys"},
 })
 tup.append_table(extra_files, {
  {"HD_Load/9x2klbr/", VAR_PROGS .. "/hd_load/9x2klbr/9x2klbr.exe"},
@@ -651,20 +646,28 @@ tup.append_table(extra_files, {
  {"kolibrios/3D/blocks/block.bin", VAR_PROGS .. "/bcc32/games/blocks/block.bin"},
  {"kolibrios/develop/tcc/lib/crt0.o", VAR_PROGS ..  "/develop/ktcc/bin/lib/crt0.o", group = "../programs/develop/ktcc/<crt0.o>"},
  {"kolibrios/develop/tcc/lib/tiny.o", VAR_PROGS ..  "/develop/ktcc/bin/lib/tiny.o", group = "../programs/develop/ktcc/<tiny.o>"},
- {"kolibrios/develop/tcc/lib/libsound.a", VAR_PROGS ..  "/develop/ktcc/bin/lib/libsound.a", group = "../programs/develop/ktcc/<libsound.a>"}
+ {"kolibrios/develop/tcc/lib/libsound.a", VAR_PROGS ..  "/develop/ktcc/bin/lib/libsound.a", group = "../programs/develop/ktcc/<libsound.a>"},
+ {"kolibrios/develop/examples/circle", VAR_PROGS .. "/develop/examples/circle/circle"},
+ {"kolibrios/develop/examples/colorref", VAR_PROGS .. "/demos/colorref/colorref"},
+ {"kolibrios/develop/examples/conget", VAR_PROGS .. "/develop/libraries/console_coff/examples/test_gets"},
+ {"kolibrios/develop/examples/cslide", VAR_PROGS .. "/demos/cslide/cslide"},
+ {"kolibrios/develop/examples/thread", VAR_PROGS .. "/develop/examples/thread/thread"}
 })
--- For russian build, add russian-only programs.
-if build_type == "ru_RU" then tup.append_table(img_files, {
- {"DEVELOP/EXAMPLES/TESTCON2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_rus"},
-}) else tup.append_table(img_files, {
- {"DEVELOP/EXAMPLES/TESTCON2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_eng"},
-}) end
+-- -- For russian build, add russian-only programs.
+-- if build_type == "ru_RU" then tup.append_table(img_files, {
+-- {"DEVELOP/EXAMPLES/TESTCON2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_rus"},
+-- }) else tup.append_table(img_files, {
+-- {"DEVELOP/EXAMPLES/TESTCON2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_eng"},
+-- }) end
 
 if build_type == "ru_RU" then tup.append_table(extra_files, {
+ {"kolibrios/develop/examples/testcon2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_rus"},
  {"kolibrios/utils/period", VAR_PROGS .. "/other/period/period"},
  {"kolibrios/games/Dungeons/Dungeons", VAR_PROGS .. "/games/Dungeons/Dungeons"},
  {"kolibrios/games/klavisha/klavisha", VAR_PROGS .. "/games/klavisha/klavisha"},
  {"kolibrios/games/klavisha/basekurs.kla", "ru_RU/games/basekurs.kla"},
+}) else tup.append_table(extra_files, {
+ {"kolibrios/develop/examples/testcon2", VAR_PROGS .. "/develop/libraries/console_coff/examples/testcon2_eng"},
 }) end
 
 end -- tup.getconfig('NO_FASM') ~= 'full'

data/common/settings/AUTORUN.DAT

@@ -6,8 +6,9 @@
 #/SYS/CROPFLAT          "XS800 YS480"	1	# set limits of screen
 #/SYS/LOADDRV           COMMOUSE	1	# serial mouse driver
 #/SYS/DEVELOP/BOARD     ""   0	# Load DEBUG board
+#/SYS/LOADDRV            RDC  0	# videodriver for RDC M2010/M2012
 /SYS/SETUP              BOOT 0	# Load device settings
-/SYS/LOADDRV            RDC  0	# videodriver for RDC M2010/M2012
+/SYS/LOADDRV            I2CHID 0	# Start I2C touchpad driver
 /SYS/@TASKBAR           ""   0	# Start taskbar
 /SYS/ESKIN              ""   0	# Set style
 /SYS/@ICON              ""   0	# Multithread desktop icons

data/common/settings/system.ini

@@ -5,6 +5,22 @@ font smoothing=sbp
 font height=9
 speaker mute=off
 
+[touchpad]
+speed=100
+; how far a finger must move before the pointer follows, in pad units;
+; larger is steadier under a pressing finger, 0 turns the filter off
+jitter=1
+; the same, for a finger that landed on the button strip: it is pressing
+; rather than steering there, so it needs a stricter margin
+jitter_buttons=45
+scroll_step=64
+scroll_invert=0
+tap_enable=1
+tap_drag=1
+right_click=1
+button_zone=15
+right_split=50
+
 [mouse]
 speed=4
 acceleration=3

data/en_US/settings/menu.dat

@@ -40,7 +40,7 @@
 06 zSea Image Viewer  * |/kolibrios/media/zsea/zsea
 38 Animage              |media/animage
 38 IconEdit             |media/iconedit
-40 Image Filtering      |media/imgf/imgf
+40 Image Filtering    * |/kolibrios/media/ImgF/ImgF
 52 Palitra              |media/palitra
 39 Pipet                |develop/pipet
 #4 **** MULTIMEDIA

data/es_ES/settings/menu.dat

@@ -41,7 +41,7 @@
 16 Image viewer KIV      |media/kiv
 16 Image viewer zSea  *  |/kolibrios/media/zsea/zsea
 16 Animage               |media/animage
-16 Efectos de imаgenes   |media/imgf/imgf
+16 Efectos de imаgenes * |/kolibrios/media/ImgF/ImgF
 16 Palitra               |media/palitra
 #4   **** MULTIMEDIA
 16 Pixie Audioplayer     |media/pixie

data/et_EE/settings/menu.dat

@@ -41,7 +41,7 @@
 06 Image viewer zSea  *  |/kolibrios/media/zsea/zsea
 38 Animage               |media/animage
 38 IconEdit              |media/iconedit
-16 Image Filtering       |media/imgf/imgf
+16 Image Filtering    *  |/kolibrios/media/ImgF/ImgF
 52 Palitra               |media/palitra
 39 Pipet                 |develop/pipet
 #4   **** MULTIMEDIA ****

data/it_IT/settings/menu.dat

@@ -41,7 +41,7 @@
 06 Image viewer zSea  *  |/kolibrios/media/zsea/zsea
 38 Animage               |media/animage
 38 IconEdit              |media/iconedit
-40 Image Filtering       |media/imgf/imgf
+40 Image Filtering    *  |/kolibrios/media/ImgF/ImgF
 52 Palitra               |media/palitra
 39 Pipet                 |develop/pipet
 #4 **** MULTIMEDIA

data/ru_RU/settings/menu.dat

@@ -40,7 +40,7 @@
 06 Просмотр фото zSea   |/kolibrios/media/zsea/zsea
 38 Редактор Animage     |media/animage
 38 Редактор иконок      |media/iconedit
-40 Наложение фильтров   |media/imgf/imgf
+40 Наложение фильтров * |/kolibrios/media/ImgF/ImgF
 52 Палитра              |media/palitra
 39 Пипетка              |develop/pipet
 #4 **** Звук и видео

drivers/audio/intel_hda/hdaudio.asm

@@ -273,8 +273,8 @@ RIRB_INT_RESPONSE	 equ  0x01
 RIRB_INT_OVERRUN	 equ  0x04
 RIRB_INT_MASK		 equ  0x05
 
-; STATESTS int mask: SD2,SD1,SD0
-STATESTS_INT_MASK	 equ  0x07
+; STATESTS int mask: SDIWAKE[14:0], a 16-bit register
+STATESTS_INT_MASK	 equ  0x7FFF
 AZX_MAX_CODECS		 equ  4
 
 ; SD_CTL bits
@@ -402,6 +402,7 @@ struc AC_CNTRL		    ;AC controller base class
 	.response_reset     dd 0
 	.polling_mode	    db 0
 	.poll_count	    db 0
+	.no_irq 	    db 0 ; no interrupt line: a thread runs hda_irq
 	.posbuf 	    dd ?
 	.start_wallclk	    dd ? ; start + minimum wallclk
 	.period_wallclk     dd ? ; wallclk for period
@@ -505,8 +506,6 @@ macro spin_unlock
 	pop	ebx eax
 }
 
-data fixups
-end data
 
 include '../../struct.inc'
 include '../../macros.inc'
@@ -607,9 +606,6 @@ if IRQ_REMAP
 	invoke	SysMsgBoardStr
 end if
 
-	mov	ebx, [ctrl.int_line]
-	invoke	AttachIntHandler, ebx, hda_irq, dword 0
-
 ;Asper This part is from "azx_probe" proc. [
 	call	azx_codec_create
 	cmp	eax, 0
@@ -858,13 +854,13 @@ end if
 
 	mov	edx, ICH6_REG_SD_STS + SDO_OFS
 	call	azx_readb
-	mov	bl, al
+	mov	cl, al
 
 	mov	al, SD_INT_MASK
 	mov	edx, ICH6_REG_SD_STS + SDO_OFS
 	call	azx_writeb
 
-	test	bl, SD_INT_COMPLETE
+	test	cl, SD_INT_COMPLETE
 	jz	@f
 
 	mov	eax, [ctrl.civ_val]
@@ -901,13 +897,13 @@ end if
 ;if 0
 	; clear state status int
 	mov	edx, ICH6_REG_STATESTS
-	call	azx_readb
-	test	al, 0x04
+	call	azx_readw
+	and	eax, STATESTS_INT_MASK
 	jz	@f
 
-	mov	al, 0x04
+	; ack all state-change bits, else the level IRQ line stays asserted
 	mov	edx, ICH6_REG_STATESTS
-	call	azx_writeb
+	call	azx_writew
 @@:
 ;end if
 	or	eax, 1
@@ -915,6 +911,24 @@ end if
 	ret
 endp
 
+; Stand-in for the interrupt when no interrupt line is available. A thread,
+; not a TimerHS callback: the kernel calls timer callbacks with the global
+; timer list lock held, and hda_irq may stall and refill the audio buffer.
+; hda_irq runs with interrupts off, as it would in IRQ context: it holds
+; aspinlock, which azx_rirb_get_response waits for with interrupts off, so
+; a holder that could be preempted would hang the machine.
+proc hda_poll_thread
+.loop:
+	pushfd
+	cli
+	call	hda_irq
+	popfd
+	mov	eax, 5		; delay, sleeping instead of spinning
+	mov	ebx, 1		; 10 ms; a 16 KB period is ~85 ms at 48 kHz
+	int	0x40
+	jmp	.loop
+endp
+
 
 align 4
 proc create_primary_buff
@@ -1203,6 +1217,26 @@ end if
 	; allocate CORB/RIRB
 	call	azx_alloc_cmd_io
 
+	; attach the IRQ handler BEFORE the controller may raise interrupts:
+	; azx_init_chip enables GIE/CIE and a codec state-change can fire
+	; right away; an unclaimed level IRQ makes the
+	; kernel poll foreign handlers and relink their IRQH nodes onto our
+	; line (see irq_serv .try_other_irqs), corrupting the dispatch list
+	; a warm reboot can leave GIE and a stale completion bit behind, and
+	; civ_val is never resynced, so silence the controller before attaching
+	call	azx_int_disable
+	mov	ebx, [ctrl.int_line]
+	invoke	AttachIntHandler, ebx, hda_irq, dword 0
+	test	eax, eax
+	jnz	@f
+	; No usable interrupt line (INTLINE=0xFF on boards that route INTx only
+	; through ACPI _PRT or MSI, which the kernel does not parse). The
+	; controller still latches INTSTS/SD_STS, we only lose the wakeup - so
+	; poll the RIRB for codec replies and run the interrupt handler from a
+	; thread. A flag of its own: polling_mode is the timeout recovery state.
+	mov	[ctrl.no_irq], 1
+@@:
+
 	; initialize chip
 	call	azx_init_pci
 
@@ -1210,6 +1244,32 @@ end if
 	call	azx_init_chip
 ;] Asper
 
+	; no IRQ line: let a polling thread stand in for the interrupt.
+	; Started only now - earlier, hda_irq could ack STATESTS in the window
+	; before reset_controller reads it into codec_mask
+	cmp	[ctrl.no_irq], 0
+	je	@f
+	push	esi edi 	; CreateThread clobbers them, START needs esi
+	mov	ebx, 1
+	mov	ecx, hda_poll_thread
+	xor	edx, edx
+	invoke	CreateThread
+	pop	edi esi
+	test	eax, eax
+	jns	.thread_ok
+	; nothing would ever complete a period and playback would stall,
+	; so fail the init rather than register a service that hangs
+	mov	esi, msgNoIrqThread
+	invoke	SysMsgBoardStr
+	xor	eax, eax
+	ret
+.thread_ok:
+if DEBUG
+	mov	esi, msgNoIrqPoll
+	invoke	SysMsgBoardStr
+end if
+@@:
+
 	xor	eax, eax
 	inc	eax
 	ret
@@ -1243,7 +1303,7 @@ endl
 	; clear STATESTS
 	mov	eax, STATESTS_INT_MASK
 	mov	edx, ICH6_REG_STATESTS
-	call	azx_writeb
+	call	azx_writew
 
 	; reset controller
 	mov	edx, ICH6_REG_GCTL
@@ -1454,6 +1514,12 @@ endp
 
 proc azx_alloc_cmd_io
 	push	eax ecx edx
+	; the unsolicited-event ring lives in reserved storage, so its
+	; pointers hold garbage until we clear them here - do it before
+	; reset_controller enables unsolicited responses in GCTL
+	mov	[unsol_events.rp], 0
+	mov	[unsol_events.wp], 0
+
 	; single page (at least 4096 bytes) must suffice for both ringbuffers
 	invoke	KernelAlloc, 4096
 	mov	[ctrl.rb], eax
@@ -1654,14 +1720,24 @@ endl
 	mov	ecx, 1000;+1000
 .next_try:
 	mov	al, [ctrl.polling_mode]
-	test	al, al
+	or	al, [ctrl.no_irq]
 	jnz	.poll
 	mov	ah, [do_poll]
 	test	ah, ah
 	jz	@f
 .poll:
 	spin_lock_irq
+	; take the lock hda_irq holds so two RIRB readers never overlap
+	push	eax ebx
+	mov	eax, aspinlock
+.poll_lock:
+	mov	ebx, SPINLOCK_BUSY
+	lock xchg [eax], ebx
+	cmp	ebx, SPINLOCK_FREE
+	jnz	.poll_lock
+	pop	ebx eax
 	call	azx_update_rirb
+	mov	[aspinlock], SPINLOCK_FREE
 	spin_unlock_irq
 @@:
 	mov	eax, [ctrl.rirb_cmd]
@@ -1942,6 +2018,7 @@ proc azx_int_disable
 	mov	ebx, ICH6_INT_CTRL_EN or ICH6_INT_GLOBAL_EN
 	xor	ebx, -1
 	and	eax, ebx
+	mov	edx, ICH6_REG_INTCTL	; azx_readl turned edx into the absolute address
 	call	azx_writel
 	pop	edx ebx eax
 	ret
@@ -1957,9 +2034,9 @@ proc azx_int_clear
 	call	azx_writeb
 
 	; clear STATESTS
-	mov	al, STATESTS_INT_MASK
+	mov	ax, STATESTS_INT_MASK
 	mov	edx, ICH6_REG_STATESTS
-	call	azx_writeb
+	call	azx_writew
 
 	; clear rirb status
 	mov	al, RIRB_INT_MASK
@@ -2696,6 +2773,7 @@ proc snd_hda_queue_unsol_event stdcall, res:dword, res_ex:dword
     ; only carries EBX across iterations and reloads the rest, and TimerHS
     ; preserves EBX too - so by using scratch regs only we need no saves.
     mov     eax, [unsol_events.wp]
+    and     eax, HDA_UNSOL_QUEUE_SIZE - 1     ; never index the ring wild
     lea     edx, [eax+1]
     and     edx, HDA_UNSOL_QUEUE_SIZE - 1     ; next write pos (size must be 2^n)
     cmp     edx, [unsol_events.rp]
@@ -2998,6 +3076,7 @@ sz_sound_srv	     db 'SOUND',0
 
 msgInit      db 'detect hardware...',13,10,0
 msgFail      db 'device not found',13,10,0
+msgNoIrqThread db 'no IRQ line: cannot create polling thread',13,10,0
 msgAttchIRQ  db 'IRQ line not supported', 13,10,0
 msgInvIRQ    db 'IRQ line not assigned or invalid', 13,10,0
 msgPlay      db 'start play', 13,10,0
@@ -3067,6 +3146,7 @@ if DEBUG
     msgTCSEL		     db 'PCI TCSEL     ',0
     msgTV		     db 'HDA test version ',TEST_VERSION_NUMBER,13,10,0
     msgGCap		     db 'GCAP = ',0
+    msgNoIrqPoll	     db 'no IRQ line: polling thread',13,10,0
 end if
 
 if USE_SINGLE_MODE
@@ -3101,6 +3181,11 @@ end if
 
 ;] Asper
 
+; relocation table lives after all code and initialized data: placed before the
+; code its size feeds back into every relocation site and fasm may never converge
+data fixups
+end data
+
 aspinlock	 dd SPINLOCK_FREE
 
 codec CODEC

drivers/ethernet/i8255x.asm

@@ -130,6 +130,8 @@ RU_STATUS_IDLE          = 0000b shl 2
 RU_STATUS_SUSPENDED     = 0001b shl 2
 RU_STATUS_NO_RESOURCES  = 0010b shl 2
 RU_STATUS_READY         = 0100b shl 2
+SCB_STATUS_CUS          = 11000000b     ; CU Status
+CU_STATUS_ACTIVE        = 10b shl 6
 SCB_STATUS_FCP          = 1 shl 8       ; Flow Control Pause
 SCB_STATUS_SWI          = 1 shl 10      ; Software Interrupt
 SCB_STATUS_MDI          = 1 shl 11      ; MDI read/write complete
@@ -183,6 +185,8 @@ struct  txfd
 
 ends
 
+TXFD_STATUS_C           = 1 shl 15
+
 TXFD_CMD_IA             = 1 shl 0
 TXFD_CMD_CFG            = 1 shl 1
 TXFD_CMD_TX             = 1 shl 2
@@ -628,6 +632,9 @@ reset:
         mov     ax, CU_START or INT_MASK
         out     dx, ax
         call    cmd_wait
+; cmd_wait only means the SCB accepted the command. The Configure below
+; reuses confcmd, so a slow chip would read it instead of our MAC.
+        call    confcmd_wait
 
 ;-------------
 ; Configure CU
@@ -652,6 +659,7 @@ reset:
         mov     ax, CU_START                            ; expect Interrupts from now on
         out     dx, ax
         call    cmd_wait
+        call    confcmd_wait
 
 ; Start media check timer
         mov     [ebx + device.state], ETH_LINK_DOWN
@@ -678,6 +686,11 @@ init_rx_ring:
 ;---------------------
 ; build rxfd structure
 
+        cmp     [ebx + device.rx_desc], 0       ; the RFD of an earlier reset
+        je      @f
+        invoke  NetFree, [ebx + device.rx_desc]
+        mov     [ebx + device.rx_desc], 0
+  @@:
         invoke  NetAlloc, 2000
         test    eax, eax
         jz      .out_of_mem
@@ -689,6 +702,7 @@ init_rx_ring:
         mov     [esi + sizeof.NET_BUFF + rxfd.command], RXFD_CMD_EL or RXFD_CMD_SUSPEND
         mov     [esi + sizeof.NET_BUFF + rxfd.link], eax
         mov     [esi + sizeof.NET_BUFF + rxfd.count], 0
+        mov     [esi + sizeof.NET_BUFF + rxfd.rx_buf_addr], 0xffffffff  ; simplified mode, no RBD
         mov     [esi + sizeof.NET_BUFF + rxfd.size], 1528
 
         ret
@@ -709,6 +723,15 @@ init_tx_ring:
         invoke  GetPhysAddr
         mov     ecx, TX_RING_SIZE
   .next_desc:
+; after a reset with frames still unreclaimed: free them, or transmit sees the
+; descriptor busy (virt_addr) and reports TX overrun forever
+        cmp     [esi + txfd.virt_addr], 0
+        je      @f
+        push    eax ecx
+        invoke  NetFree, [esi + txfd.virt_addr]
+        pop     ecx eax
+        mov     [esi + txfd.virt_addr], 0
+  @@:
         mov     [esi + txfd.status], 0
         mov     [esi + txfd.command], 0
         lea     edx, [eax + txfd.buf_addr]
@@ -763,7 +786,7 @@ proc transmit stdcall bufferptr
         lea     edi, [ebx + device.tx_ring + eax]
 
         ; Check if current descriptor is free or still in use
-        cmp     [edi + txfd.status], 0
+        cmp     [edi + txfd.virt_addr], 0               ; buffer not reclaimed yet
         jne     .overrun
 
         ; Fill in status and command values
@@ -786,6 +809,22 @@ proc transmit stdcall bufferptr
         mov     eax, edi
         invoke  GetPhysAddr
         set_io  [ebx + device.io_addr], 0
+
+        ; CU_START is only valid while the CU is idle or suspended:
+        ; wait for the previous frame to leave (1.2 ms at 10 Mbit)
+        push    eax ecx
+        set_io  [ebx + device.io_addr], REG_SCB_STATUS
+        mov     ecx, 100000
+  .cu_busy:
+        in      al, dx
+        and     al, SCB_STATUS_CUS
+        cmp     al, CU_STATUS_ACTIVE
+        jne     .cu_free
+        dec     ecx
+        jnz     .cu_busy
+        DEBUGF  2, "CU still active, starting anyway\n"
+  .cu_free:
+        pop     ecx eax
         set_io  [ebx + device.io_addr], REG_SCB_PTR
         out     dx, eax
 
@@ -854,7 +893,7 @@ int_handler:
 
         DEBUGF  1,"Status: %x\n", ax
 
-        test    ax, SCB_STATUS_FR               ; did we receive a frame?
+        test    ax, SCB_STATUS_FR or SCB_STATUS_RNR     ; frame received or receiver stopped?
         jz      .no_rx
 
         push    ax
@@ -901,6 +940,7 @@ int_handler:
         mov     [esi + sizeof.NET_BUFF + rxfd.command], RXFD_CMD_EL or RXFD_CMD_SUSPEND
         mov     [esi + sizeof.NET_BUFF + rxfd.link], eax
         mov     [esi + sizeof.NET_BUFF + rxfd.count], 0
+        mov     [esi + sizeof.NET_BUFF + rxfd.rx_buf_addr], 0xffffffff  ; simplified mode, no RBD
         mov     [esi + sizeof.NET_BUFF + rxfd.size], 1528
 
 ; restart RX
@@ -916,11 +956,22 @@ int_handler:
         mov     ax, RX_START
         out     dx, ax
         call    cmd_wait
-  .out_of_mem:
 
 ; Hand the frame over to the kernel
         jmp     [EthInput]
 
+  .out_of_mem:
+; The buffer is still our only RFD: drop the frame and reuse it
+        mov     esi, [esp]                      ; the buffer
+        mov     ecx, [esi + NET_BUFF.length]
+        dec     [ebx + device.packets_rx]       ; counted above, before the allocation
+        sub     dword [ebx + device.bytes_rx], ecx
+        sbb     dword [ebx + device.bytes_rx + 4], 0
+        inc     [ebx + device.packets_rx_drop]
+        add     esp, 12                         ; buffer, .rx_loop, ebx
+        mov     esi, [ebx + device.rx_desc]
+        jmp     .not_ok
+
   .not_ok:
 ; Reset the FD
         mov     [esi + sizeof.NET_BUFF + rxfd.status], 0
@@ -945,6 +996,27 @@ int_handler:
 
   .no_rx_:
         DEBUGF  1, "no more data\n"
+
+; With a single RFD the receiver sits in No Resources/Suspended whenever a
+; frame arrived before we re-armed it. Nothing restarts it but us.
+        set_io  [ebx + device.io_addr], 0
+        set_io  [ebx + device.io_addr], REG_SCB_STATUS
+        in      al, dx
+        and     al, SCB_STATUS_RUS
+        cmp     al, RU_STATUS_READY
+        je      .ru_ready
+        test    byte[esp], 1                    ; bit 0 of the saved status is reserved,
+        jnz     .ru_ready                       ; we mark it: one restart per IRQ
+        or      byte[esp], 1
+        movzx   eax, al
+        DEBUGF  1, "Restarting receiver, RU status %x\n", eax:2
+        mov     esi, [ebx + device.rx_desc]
+        push    ebx
+        test    [esi + sizeof.NET_BUFF + rxfd.status], RXFD_STATUS_C
+        jnz     .rx_loop                        ; a frame completed meanwhile
+        add     esp, 4
+        jmp     .not_ok                         ; re-arm the empty RFD
+  .ru_ready:
         pop     ax
 
   .no_rx:
@@ -955,13 +1027,13 @@ int_handler:
 
         push    eax
   .loop_tx:
-        mov     edi, [ebx + device.last_tx]
-        mov     eax, sizeof.txfd
-        mul     eax
+        mov     eax, [ebx + device.last_tx]
+        mov     edx, sizeof.txfd
+        mul     edx
         lea     edi, [ebx + device.tx_ring + eax]
 
-        cmp     [edi + txfd.status], 0
-        je      .tx_done
+        test    [edi + txfd.status], TXFD_STATUS_C      ; sent by the device?
+        jz      .tx_done
 
         cmp     [edi + txfd.virt_addr], 0
         je      .tx_done
@@ -970,6 +1042,7 @@ int_handler:
 
         push    [edi + txfd.virt_addr]
         mov     [edi + txfd.virt_addr], 0
+        mov     [edi + txfd.status], 0                  ; free for transmit again
         invoke  NetFree
 
         inc     [ebx + device.last_tx]
@@ -980,12 +1053,6 @@ int_handler:
         pop     eax
   .no_tx:
 
-        test    ax, RU_STATUS_NO_RESOURCES
-        jz      .not_out_of_resources
-
-        DEBUGF  2, "Out of resources!\n"
-
-  .not_out_of_resources:
         pop     edi esi ebx
         xor     eax, eax
         inc     eax
@@ -1079,6 +1146,25 @@ proc check_media_mii stdcall dev:dword
 endp
 
 
+; Wait (up to 1 s) until the device has executed the command in confcmd.
+align 4
+confcmd_wait:
+        mov     ecx, 1000                       ; udelay = Sleep(1), 1 ms
+  .loop:
+        test    [ebx + device.confcmd.status], TXFD_STATUS_C
+        jnz     .done
+        call    udelay
+        dec     ecx
+        jnz     .loop
+        movzx   eax, [ebx + device.confcmd.command]
+        DEBUGF  2, "Command 0x%x not completed\n", eax:4
+        ret
+  .done:
+        movzx   eax, [ebx + device.confcmd.command]
+        movzx   ecx, [ebx + device.confcmd.status]
+        DEBUGF  1, "Command 0x%x done, status 0x%x\n", eax:4, ecx:4
+        ret
+
 align 4
 cmd_wait:
 

drivers/i2chid/Tupfile.lua

@@ -0,0 +1,3 @@
+if tup.getconfig("NO_FASM") ~= "" then return end
+ROOT = "../.."
+tup.rule("i2chid.asm", "fasm %f %o " .. tup.getconfig("PESTRIP_CMD") .. tup.getconfig("KPACK_CMD"), "%B.sys")

drivers/i2chid/dwi2c.inc

@@ -0,0 +1,438 @@
+; Synopsys DesignWare I2C master, polled (PIO) mode only.
+; This is the controller inside Intel LPSS blocks (Skylake and newer, plus
+; Atom-derived SoCs); the same IP is used by many other vendors.
+;
+; The register file is always accessed as dwords. The controller must be
+; disabled to change IC_TAR, so every transfer disables it, programs the
+; target address, enables it back and feeds the TX FIFO by hand.
+
+; ------------------------------ Registers ------------------------------------
+DwIcCon             = 0x00
+DwIcTar             = 0x04
+DwIcDataCmd         = 0x10
+DwIcSsSclHcnt       = 0x14
+DwIcSsSclLcnt       = 0x18
+DwIcFsSclHcnt       = 0x1C
+DwIcFsSclLcnt       = 0x20
+DwIcIntrStat        = 0x2C
+DwIcIntrMask        = 0x30
+DwIcRawIntrStat     = 0x34
+DwIcRxTl            = 0x38
+DwIcTxTl            = 0x3C
+DwIcClrIntr         = 0x40
+DwIcClrTxAbrt       = 0x54
+DwIcEnable          = 0x6C
+DwIcStatus          = 0x70
+DwIcTxflr           = 0x74
+DwIcRxflr           = 0x78
+DwIcSdaHold         = 0x7C
+DwIcTxAbrtSource    = 0x80
+DwIcEnableStatus    = 0x9C
+DwIcCompParam1      = 0xF4
+DwIcCompVersion     = 0xF8
+DwIcCompType        = 0xFC
+
+; "DW_apb_i2c" component signature ('DW' + 0x0140).
+DW_COMP_TYPE_VALUE  = 0x44570140
+
+; IC_CON: master, standard speed (100 kHz), restarts allowed, slave disabled.
+DW_CON_MASTER       = 1 shl 0
+DW_CON_SPEED_STD    = 1 shl 1
+DW_CON_SPEED_FAST   = 2 shl 1
+DW_CON_RESTART_EN   = 1 shl 5
+DW_CON_SLAVE_DIS    = 1 shl 6
+
+; IC_DATA_CMD bits above the data byte.
+DW_CMD_READ         = 1 shl 8
+DW_CMD_STOP         = 1 shl 9
+DW_CMD_RESTART      = 1 shl 10
+
+; IC_STATUS bits
+DW_STAT_TFNF        = 1 shl 1   ; TX FIFO not full
+DW_STAT_TFE         = 1 shl 2   ; TX FIFO empty
+DW_STAT_RFNE        = 1 shl 3   ; RX FIFO not empty
+DW_STAT_MST_ACT     = 1 shl 5   ; master FSM busy
+
+; IC_RAW_INTR_STAT bits
+DW_INT_TX_ABRT      = 1 shl 6
+
+; SCL timing for standard mode. The LPSS input clock is 100 MHz on the PCH
+; parts and 133 MHz on the Atom-derived SoCs (Apollo Lake, Gemini Lake), and
+; nothing in PCI config space says which one this is, so the counts are
+; picked to satisfy the fast-mode minimums at the fastest of them: at
+; 133 MHz that is tHIGH = 0.98 us and tLOW = 1.5 us, 400 kHz. On a 100 MHz
+; part the same counts run the bus at 300 kHz, which is just as legal.
+; Fast mode rather than standard: HID over I2C requires every device to
+; support it, that is what Windows drives them at, and a polled host pays
+; for every byte with busy-waiting - at 100 kHz a 64-byte input read costs
+; 6 ms, more than a fast pad takes to produce the next report, and the
+; backlog that builds up plays back as the cursor coasting after the finger
+; has stopped. SDA hold stays well below tLOW.
+DW_FS_HCNT          = 130
+DW_FS_LCNT          = 200
+DW_SDA_HOLD         = 28
+; The AMD FCH feeds its DesignWare masters from a 150 MHz reference, so
+; the same minimums need more counts there: 145/225 give tHIGH = 0.97 us,
+; tLOW = 1.5 us, again 400 kHz; SDA hold 45 = 300 ns.
+DW_AMD_FS_HCNT      = 145
+DW_AMD_FS_LCNT      = 225
+DW_AMD_SDA_HOLD     = 45
+
+; A transfer gives up after [XferTimeout] hundredths of a second. The init
+; value must cover a full report descriptor read: descriptors run up to 2 KB
+; and the bus may be as slow as 77 kHz, so at 9 SCL cycles per byte a single
+; transfer takes ~240 ms of wall-clock time. Polling is generous too now that it runs in its own thread
+; rather than in a timer callback - a wedged bus costs this thread its slice
+; and nothing else.
+DW_TIMEOUT_INIT     = 60
+DW_TIMEOUT_POLL     = 20
+
+; Disables the controller and waits until it reports itself disabled.
+; in: ebx = MMIO base. Clobbers eax, ecx.
+proc dw_ctrl_disable
+        mov     dword [ebx+DwIcEnable], 0
+        mov     ecx, 100000
+@@:
+        test    dword [ebx+DwIcEnableStatus], 1
+        jz      .done
+        pause
+        loop    @b
+.done:
+        ret
+endp
+
+; Aborts a stuck transfer cleanly: the ABORT bit makes the master issue STOP,
+; flush the TX FIFO and raise TX_ABRT, which releases a slave that is holding
+; the bus (a clock-stretching touchpad, for instance). Simply disabling the
+; controller in the middle of a byte would leave SDA held low and every
+; following transfer would time out too. Older cores without the ABORT bit
+; just ignore the write and fall through after the wait.
+; in: ebx = MMIO base. Clobbers eax, ecx.
+proc dw_ctrl_abort
+        mov     dword [ebx+DwIcEnable], 3
+        mov     ecx, 100000
+@@:
+        test    dword [ebx+DwIcRawIntrStat], DW_INT_TX_ABRT
+        jnz     @f
+        pause
+        loop    @b
+@@:
+        mov     eax, [ebx+DwIcClrTxAbrt]
+        call    dw_ctrl_disable
+        ret
+endp
+
+; One idle step of a transfer wait loop.
+; A healthy transfer is over within a few milliseconds, well inside the
+; first two timer ticks, and spins through them: a transfer that yields
+; its slice is at the scheduler's mercy for the rest of it. Past that the
+; bus is stuck or crawling, and the wait gives up the CPU a tick at a time
+; instead of burning a core until XferTimeout.
+; in: eax = ticks elapsed since the transfer began. Preserves all but eax.
+DW_SPIN_TICKS       = 2
+
+proc dw_wait_step
+        cmp     eax, DW_SPIN_TICKS
+        jae     .yield
+        pause
+        ret
+.yield:
+        push    ebx
+        movi    ebx, 1
+        invoke  Delay                   ; preserves every register
+        pop     ebx
+        ret
+endp
+
+; One-time controller setup after mapping.
+; in: ebx = MMIO base.
+proc dw_ctrl_init
+        push    eax ecx
+        call    dw_ctrl_disable
+        mov     dword [ebx+DwIcCon], DW_CON_MASTER + DW_CON_SPEED_FAST + \
+                DW_CON_RESTART_EN + DW_CON_SLAVE_DIS
+; The counts come from variables: they depend on the reference clock, which
+; is decided by whoever found the controller (PCI LPSS or AMD FCH). The
+; standard-mode registers get the same values scaled up so that they are
+; sane should anything ever switch the speed bits back.
+        mov     eax, [DwHcnt]
+        mov     [ebx+DwIcFsSclHcnt], eax
+        lea     eax, [eax*4]
+        mov     [ebx+DwIcSsSclHcnt], eax
+        mov     eax, [DwLcnt]
+        mov     [ebx+DwIcFsSclLcnt], eax
+        lea     eax, [eax*4]
+        mov     [ebx+DwIcSsSclLcnt], eax
+        mov     eax, [DwSdaHold]
+        mov     [ebx+DwIcSdaHold], eax
+        mov     dword [ebx+DwIcIntrMask], 0
+        mov     dword [ebx+DwIcRxTl], 0
+        mov     dword [ebx+DwIcTxTl], 0
+        mov     eax, [ebx+DwIcClrIntr]
+        pop     ecx eax
+        ret
+endp
+
+; One combined I2C transaction: optional write phase, then optional read phase
+; with a repeated START between them. Fully polled.
+; out: eax = 0 on success, IC_TX_ABRT_SOURCE value on NAK/abort, -1 on timeout.
+proc dw_xfer stdcall uses ebx esi edi, addr:dword, wbuf:dword, wlen:dword, \
+        rbuf:dword, rlen:dword
+locals
+        wsent   dd ?
+        rqueued dd ?
+        rgot    dd ?
+        t0      dd ?
+endl
+        mov     ebx, [I2cMmio]
+        call    dw_ctrl_disable
+        mov     eax, [addr]
+        mov     [ebx+DwIcTar], eax
+        mov     eax, [ebx+DwIcClrIntr]
+        mov     dword [ebx+DwIcEnable], 1
+        xor     eax, eax
+        mov     [wsent], eax
+        mov     [rqueued], eax
+        mov     [rgot], eax
+        invoke  GetTimerTicks
+        mov     [t0], eax
+.loop:
+; Abort (NAK and friends) ends the transfer immediately.
+        test    dword [ebx+DwIcRawIntrStat], DW_INT_TX_ABRT
+        jnz     .abort
+; Drain the RX FIFO first so it can never overflow.
+        test    dword [ebx+DwIcStatus], DW_STAT_RFNE
+        jz      .no_rx
+        mov     edx, [rgot]
+        cmp     edx, [rlen]
+        jae     .no_rx
+        mov     eax, [ebx+DwIcDataCmd]
+        mov     edi, [rbuf]
+        mov     [edi+edx], al
+        inc     edx
+        mov     [rgot], edx
+        jmp     .loop
+.no_rx:
+; Feed the write phase.
+        mov     eax, [wsent]
+        cmp     eax, [wlen]
+        jae     .push_reads
+        test    dword [ebx+DwIcStatus], DW_STAT_TFNF
+        jz      .check_done
+        mov     esi, [wbuf]
+        movzx   edx, byte [esi+eax]
+        inc     eax
+        cmp     eax, [wlen]
+        jne     @f
+        cmp     [rlen], 0
+        jne     @f
+        or      edx, DW_CMD_STOP        ; last byte of a write-only transfer
+@@:
+        mov     [ebx+DwIcDataCmd], edx
+        mov     [wsent], eax
+        jmp     .loop
+.push_reads:
+; Feed read commands, at most 8 outstanding so the RX FIFO keeps up.
+        mov     eax, [rqueued]
+        cmp     eax, [rlen]
+        jae     .check_done
+        mov     edx, eax
+        sub     edx, [rgot]
+        cmp     edx, 8
+        jae     .check_done
+        test    dword [ebx+DwIcStatus], DW_STAT_TFNF
+        jz      .check_done
+        mov     edx, DW_CMD_READ
+        test    eax, eax
+        jnz     @f
+        cmp     [wlen], 0
+        je      @f
+        or      edx, DW_CMD_RESTART     ; repeated START after the write phase
+@@:
+        mov     ecx, [rlen]
+        dec     ecx
+        cmp     eax, ecx
+        jne     @f
+        or      edx, DW_CMD_STOP
+@@:
+        mov     [ebx+DwIcDataCmd], edx
+        inc     eax
+        mov     [rqueued], eax
+        jmp     .loop
+.check_done:
+        mov     eax, [rgot]
+        cmp     eax, [rlen]
+        jne     .not_done
+        mov     eax, [wsent]
+        cmp     eax, [wlen]
+        jne     .not_done
+        mov     eax, [ebx+DwIcStatus]
+        test    eax, DW_STAT_TFE
+        jz      .not_done
+        test    eax, DW_STAT_MST_ACT
+        jnz     .not_done
+        call    dw_ctrl_disable
+        xor     eax, eax
+        ret
+.not_done:
+        invoke  GetTimerTicks
+        sub     eax, [t0]
+        cmp     eax, [XferTimeout]
+        jae     .timeout
+        call    dw_wait_step
+        jmp     .loop
+.abort:
+        mov     esi, [ebx+DwIcTxAbrtSource]
+        mov     eax, [ebx+DwIcClrTxAbrt]
+        call    dw_ctrl_disable
+        mov     eax, esi
+        test    eax, eax
+        jnz     @f
+        or      eax, 0x80000000
+@@:
+        ret
+.timeout:
+        call    dw_ctrl_abort
+        or      eax, -1
+        ret
+endp
+
+; Reads one HID input report as a single continuous bus transaction, the way
+; interrupt-driven hosts (Windows, Linux) do it: the optional register-address
+; write and every read command are queued into the TX FIFO before the bytes
+; start flowing, so nothing on the wire depends on how fast the host loop
+; runs. The previous adaptive read (fetch 2 length bytes, decide, fetch the
+; rest, stop short) was cut down on the wire to 3 bytes for an empty poll -
+; and the SIPODEV/Hantick touchpad firmwares are exactly the kind of thing
+; that wedges when an input read is shorter than the frame they prepared.
+; rlen should not exceed the TX FIFO depth (IC_COMP_PARAM_1 bits 23:16, plus
+; one) or the queue loop degrades to feeding the FIFO on the fly, which
+; reintroduces pauses.
+; in: addr = slave, wlen bytes at wbuf written first (0 = plain read),
+;     rlen bytes read into buf.
+; out: eax = 0 ok, IC_TX_ABRT_SOURCE on NAK/abort, -1 on timeout.
+; Timeout check for the dw_read_block wait spots; expands inside the proc so
+; [t0] and [XferTimeout] resolve in the caller's own frame.
+macro BLOCK_TICK fail_label {
+        invoke  GetTimerTicks
+        sub     eax, [t0]
+        cmp     eax, [XferTimeout]
+        jae     fail_label
+        call    dw_wait_step
+}
+
+proc dw_read_block stdcall uses ebx esi edi, addr:dword, wbuf:dword, wlen:dword,         buf:dword, rlen:dword
+locals
+        rgot    dd ?
+        t0      dd ?
+endl
+        mov     ebx, [I2cMmio]
+        call    dw_ctrl_disable
+        mov     eax, [addr]
+        mov     [ebx+DwIcTar], eax
+        mov     eax, [ebx+DwIcClrIntr]
+        mov     dword [ebx+DwIcEnable], 1
+        invoke  GetTimerTicks
+        mov     [t0], eax
+        mov     [rgot], 0
+; Write phase: the register address bytes, no STOP - the read continues the
+; same transaction after a repeated START.
+        xor     ecx, ecx
+.wr:
+        cmp     ecx, [wlen]
+        jae     .queue_reads
+        test    dword [ebx+DwIcRawIntrStat], DW_INT_TX_ABRT
+        jnz     .abort
+        test    dword [ebx+DwIcStatus], DW_STAT_TFNF
+        jz      .wr_wait
+        mov     esi, [wbuf]
+        movzx   edx, byte [esi+ecx]
+        mov     [ebx+DwIcDataCmd], edx
+        inc     ecx
+        jmp     .wr
+.wr_wait:
+        BLOCK_TICK .timeout
+        jmp     .wr
+.queue_reads:
+        xor     ecx, ecx
+.rq:
+        cmp     ecx, [rlen]
+        jae     .drain
+        test    dword [ebx+DwIcRawIntrStat], DW_INT_TX_ABRT
+        jnz     .abort
+        test    dword [ebx+DwIcStatus], DW_STAT_TFNF
+        jz      .rq_wait
+        mov     edx, DW_CMD_READ
+        test    ecx, ecx
+        jnz     .not_first
+        cmp     [wlen], 0
+        je      .not_first
+        or      edx, DW_CMD_RESTART
+.not_first:
+        mov     eax, [rlen]
+        dec     eax
+        cmp     ecx, eax
+        jne     @f
+        or      edx, DW_CMD_STOP
+@@:
+        mov     [ebx+DwIcDataCmd], edx
+        inc     ecx
+; Drain opportunistically so a FIFO shallower than rlen cannot deadlock the
+; queue loop (the RX side fills while the TX side is full).
+        test    dword [ebx+DwIcStatus], DW_STAT_RFNE
+        jz      .rq
+        call    .take_byte
+        jmp     .rq
+.rq_wait:
+        BLOCK_TICK .timeout
+        jmp     .rq
+.drain:
+        test    dword [ebx+DwIcRawIntrStat], DW_INT_TX_ABRT
+        jnz     .abort
+        test    dword [ebx+DwIcStatus], DW_STAT_RFNE
+        jz      .chk
+        call    .take_byte
+        jmp     .drain
+; Moves one byte from the RX FIFO into the caller's buffer. Exactly rlen
+; reads are queued into freshly flushed FIFOs, so a byte beyond rlen should
+; never arrive; if one does anyway it is still taken off the FIFO, so the
+; drain loop cannot stall on it, but it is dropped rather than written
+; past the end of the buffer.
+.take_byte:
+        mov     edx, [rgot]
+        mov     eax, [ebx+DwIcDataCmd]
+        cmp     edx, [rlen]
+        jae     @f
+        mov     edi, [buf]
+        mov     [edi+edx], al
+        inc     edx
+        mov     [rgot], edx
+@@:
+        retn
+.chk:
+        mov     eax, [rgot]
+        cmp     eax, [rlen]
+        jne     .wait
+        test    dword [ebx+DwIcStatus], DW_STAT_MST_ACT
+        jnz     .wait
+        call    dw_ctrl_disable
+        xor     eax, eax
+        ret
+.wait:
+        BLOCK_TICK .timeout
+        jmp     .drain
+.abort:
+        mov     esi, [ebx+DwIcTxAbrtSource]
+        mov     eax, [ebx+DwIcClrTxAbrt]
+        call    dw_ctrl_disable
+        mov     eax, esi
+        test    eax, eax
+        jnz     @f
+        or      eax, 0x80000000
+@@:
+        ret
+.timeout:
+        call    dw_ctrl_abort
+        or      eax, -1
+        ret
+endp

drivers/i2chid/hidmin.inc

@@ -0,0 +1,646 @@
+; Minimal HID report descriptor parser.
+;
+; The goal is not a full HID implementation: the parser walks the descriptor
+; once and remembers the bit layout of the first input report that contains
+; relative X and relative Y (Generic Desktop / X, Y) - i.e. the mouse
+; compatibility collection that every I2C mouse and every Windows Precision
+; Touchpad exposes. Buttons (Usage Page 9) and a relative wheel found in the
+; same report are picked up too. Absolute (digitizer) reports are advanced
+; over but otherwise ignored.
+;
+; Report IDs are honoured: bit positions are counted separately per report ID
+; and the chosen ID is checked in every incoming packet.
+;
+; Alongside the mouse report, the parser also maps the touchpad (Windows
+; Precision Touchpad) report: the report that carries Tip Switch usages.
+; Each Tip Switch opens a new finger block; the absolute X and Y that follow
+; it belong to that finger; Contact Count and the Button-page fields of the
+; same report are recorded too. Once the pad is switched into touchpad mode
+; those offsets are what the frame decoder reads - every vendor lays the
+; frame out differently, and only the descriptor knows how.
+HID_MAX_FINGERS = 5
+
+HID_MAX_USAGES  = 16
+HID_MAX_REPIDS  = 16
+
+; Returns the pointer to the input bit counter of the current report ID,
+; allocating a new slot on first use.
+; out: ebx -> dword bit counter. Clobbers eax, ecx.
+proc hid_get_bits_slot
+        mov     eax, [p_report_id]
+        xor     ecx, ecx
+.scan:
+        cmp     ecx, [p_idcnt]
+        jae     .add
+        cmp     eax, [p_ids+ecx*4]
+        jz      .found
+        inc     ecx
+        jmp     .scan
+.add:
+        cmp     ecx, HID_MAX_REPIDS
+        jb      @f
+        dec     ecx                     ; table full: reuse the last slot
+        jmp     .found
+@@:
+        mov     [p_ids+ecx*4], eax
+        mov     dword [p_bits+ecx*4], 0
+        mov     dword [p_fbits+ecx*4], 0
+        inc     [p_idcnt]
+.found:
+        lea     ebx, [p_bits+ecx*4]
+        ret
+endp
+
+; Handles one Input main item. v_flags = item data (bit 2 = relative).
+proc hid_process_input
+        push    eax ebx ecx edx
+        call    hid_get_bits_slot
+        mov     eax, [ebx]
+        mov     [v_base], eax
+; Advance the counter over this field right away.
+        mov     eax, [p_report_size]
+        imul    eax, [p_report_count]
+        add     [ebx], eax
+; Remember the largest logical maximum ever attached to Generic Desktop X
+; and Y. The mouse collection declares a tiny relative range there while
+; the touchpad collection declares the real surface extents, so the
+; maximum over the whole descriptor is the size of the pad - which is what
+; the button zones are measured against, and it differs per model.
+        cmp     [p_usage_cnt], 0
+        je      .no_extent
+        xor     ecx, ecx
+.ext_loop:
+        cmp     ecx, [p_usage_cnt]
+        jae     .no_extent
+        mov     eax, [p_usages+ecx*4]
+        cmp     eax, 0x00010030
+        jne     .ext_y
+        mov     eax, [p_log_max]
+        cmp     eax, [t_padmaxx]
+        jbe     .ext_next
+        mov     [t_padmaxx], eax
+        jmp     .ext_next
+.ext_y:
+        cmp     eax, 0x00010031
+        jne     .ext_next
+        mov     eax, [p_log_max]
+        cmp     eax, [t_padmaxy]
+        jbe     .ext_next
+        mov     [t_padmaxy], eax
+.ext_next:
+        inc     ecx
+        jmp     .ext_loop
+.no_extent:
+; Button-style field: Usage Minimum/Maximum on the Button page.
+        cmp     [p_usage_min], -1
+        je      .not_buttons
+        cmp     [p_usage_max], -1
+        je      .not_buttons
+        cmp     [p_usage_page], 9
+        jne     .not_buttons
+        cmp     [p_report_size], 1      ; buttons are always 1-bit fields
+        jne     .done
+        mov     eax, [v_base]
+        mov     ecx, [p_report_count]
+        call    hid_note_buttons
+        jmp     .done
+.not_buttons:
+        cmp     [p_usage_cnt], 0
+        je      .done
+        call    hid_note_touchpad
+; Usage-list field: look for GD/X, GD/Y, GD/Wheel among the usages.
+        test    [v_flags], 4            ; only relative fields are interesting
+        jz      .done
+        xor     ecx, ecx
+.usage_loop:
+        cmp     ecx, [p_report_count]
+        jae     .done
+; usage index = min(field index, usage count - 1): a short usage list
+; applies its last usage to the remaining fields.
+        mov     edx, [p_usage_cnt]
+        dec     edx
+        mov     eax, ecx
+        cmp     eax, edx
+        jbe     @f
+        mov     eax, edx
+@@:
+        mov     eax, [p_usages+eax*4]
+        cmp     eax, 0x00010030
+        je      .is_x
+        cmp     eax, 0x00010031
+        je      .is_y
+        cmp     eax, 0x00010038
+        je      .is_wheel
+.next_usage:
+        inc     ecx
+        jmp     .usage_loop
+.is_x:
+        test    [t_have], 1
+        jnz     .next_usage
+        call    hid_claim_report_id
+        jc      .next_usage
+        call    hid_field_offset
+        mov     [t_xoff], eax
+        mov     eax, [p_report_size]
+        mov     [t_xsize], eax
+        or      [t_have], 1
+        jmp     .next_usage
+.is_y:
+        test    [t_have], 2
+        jnz     .next_usage
+        call    hid_claim_report_id
+        jc      .next_usage
+        call    hid_field_offset
+        mov     [t_yoff], eax
+        mov     eax, [p_report_size]
+        mov     [t_ysize], eax
+        or      [t_have], 2
+        jmp     .next_usage
+.is_wheel:
+        test    [t_have], 8
+        jnz     .next_usage
+        mov     eax, [t_id]
+        cmp     eax, -1                 ; wheel never claims a report on its own
+        je      .next_usage
+        cmp     eax, [p_report_id]
+        jne     .next_usage
+        call    hid_field_offset
+        mov     [t_woff], eax
+        mov     eax, [p_report_size]
+        mov     [t_wsize], eax
+        or      [t_have], 8
+        jmp     .next_usage
+.done:
+        pop     edx ecx ebx eax
+        ret
+endp
+
+; Records a run of 1-bit Button-page fields starting at bit eax, ecx of them.
+; The mouse decoder wants the buttons of ITS report: an item from some other
+; report is kept only until a better one turns up, and .eof drops it if it
+; still does not match. The touchpad report keeps its own copy.
+proc hid_note_buttons
+        push    eax ecx edx
+        cmp     ecx, 8
+        jbe     @f
+        mov     ecx, 8
+@@:
+        mov     edx, [p_report_id]
+        cmp     edx, [t_ptp_id]
+        jne     .mouse
+        cmp     [t_pbtn_cnt], 0
+        jne     .mouse
+        mov     [t_pbtn_off], eax
+        mov     [t_pbtn_cnt], ecx
+.mouse:
+        cmp     [t_btncnt], 0
+        je      .take
+        mov     edx, [t_btnid]
+        cmp     edx, [t_id]             ; already the chosen report's: keep
+        je      .done
+        mov     edx, [p_report_id]
+        cmp     edx, [t_btnid]          ; a second run in the same report: keep the first
+        je      .done
+.take:
+        mov     [t_btnoff], eax
+        mov     [t_btncnt], ecx
+        mov     eax, [p_report_id]
+        mov     [t_btnid], eax
+.done:
+        pop     edx ecx eax
+        ret
+endp
+
+; Walks the usages of the current input item looking for the touchpad
+; fields. Field k takes usage min(k, count-1), as in the mouse search.
+proc hid_note_touchpad
+        push    eax ebx ecx edx
+        xor     ecx, ecx
+.field:
+        cmp     ecx, [p_report_count]
+        jae     .done
+        mov     edx, [p_usage_cnt]
+        dec     edx
+        mov     eax, ecx
+        cmp     eax, edx
+        jbe     @f
+        mov     eax, edx
+@@:
+        mov     ebx, [p_usages+eax*4]   ; ebx = usage of field ecx
+        call    hid_field_offset        ; eax = its bit offset
+        cmp     ebx, 0x000D0042         ; Tip Switch: a new finger
+        je      .tip
+        cmp     ebx, 0x000D0054         ; Contact Count
+        je      .count
+        cmp     ebx, 0x000D0051         ; Contact Identifier
+        je      .cid
+        cmp     ebx, 0x00010030
+        je      .x
+        cmp     ebx, 0x00010031
+        je      .y
+        shr     ebx, 16
+        cmp     ebx, 9                  ; buttons written as a usage list
+        jne     .next
+        push    ecx
+        neg     ecx
+        add     ecx, [p_report_count]   ; the fields from here to the end
+        call    hid_note_buttons
+        pop     ecx
+        jmp     .done                   ; one run per item is enough
+.tip:
+        cmp     [t_ptp_id], -1
+        jne     @f
+        mov     edx, [p_report_id]
+        mov     [t_ptp_id], edx         ; the first report with fingers is the one
+@@:
+        call    hid_in_ptp
+        jne     .next
+        mov     edx, [t_fcount]
+        cmp     edx, HID_MAX_FINGERS
+        jae     .next
+        mov     [t_ftip+edx*4], eax
+        mov     dword [t_fxs+edx*4], 0
+        mov     dword [t_fys+edx*4], 0
+        mov     dword [t_fcids+edx*4], 0
+        inc     [t_fcount]
+        jmp     .next
+.cid:
+        call    hid_in_ptp
+        jne     .next
+        mov     edx, [t_fcount]
+        test    edx, edx
+        jz      .next
+        dec     edx
+        cmp     dword [t_fcids+edx*4], 0
+        jne     .next
+        mov     [t_fcid+edx*4], eax
+        mov     eax, [p_report_size]
+        mov     [t_fcids+edx*4], eax
+        jmp     .next
+.count:
+        call    hid_in_ptp
+        jne     .next
+        mov     [t_ccnt_off], eax
+        mov     eax, [p_report_size]
+        mov     [t_ccnt_size], eax
+        jmp     .next
+.x:
+        test    [v_flags], 4            ; absolute only; relative is the mouse
+        jnz     .next
+        call    hid_in_ptp
+        jne     .next
+        mov     edx, [t_fcount]
+        test    edx, edx
+        jz      .next
+        dec     edx
+        cmp     dword [t_fxs+edx*4], 0
+        jne     .next
+        mov     [t_fx+edx*4], eax
+        mov     eax, [p_report_size]
+        mov     [t_fxs+edx*4], eax
+        jmp     .next
+.y:
+        test    [v_flags], 4
+        jnz     .next
+        call    hid_in_ptp
+        jne     .next
+        mov     edx, [t_fcount]
+        test    edx, edx
+        jz      .next
+        dec     edx
+        cmp     dword [t_fys+edx*4], 0
+        jne     .next
+        mov     [t_fy+edx*4], eax
+        mov     eax, [p_report_size]
+        mov     [t_fys+edx*4], eax
+.next:
+        inc     ecx
+        jmp     .field
+.done:
+        pop     edx ecx ebx eax
+        ret
+endp
+
+; ZF set when the current item belongs to the touchpad report.
+proc hid_in_ptp
+        push    eax
+        mov     eax, [p_report_id]
+        cmp     eax, [t_ptp_id]
+        pop     eax
+        ret
+endp
+
+; Size in bytes of the feature report with id eax; 0 when the descriptor
+; never mentioned one.
+proc hid_feature_bytes
+        push    ecx
+        xor     ecx, ecx
+@@:
+        cmp     ecx, [p_idcnt]
+        jae     .none
+        cmp     eax, [p_ids+ecx*4]
+        je      .found
+        inc     ecx
+        jmp     @b
+.found:
+        mov     eax, [p_fbits+ecx*4]
+        add     eax, 7
+        shr     eax, 3
+        pop     ecx
+        ret
+.none:
+        xor     eax, eax
+        pop     ecx
+        ret
+endp
+
+; Locks the candidate report ID to the current one, or fails (CF=1) when a
+; different report already holds X/Y.
+proc hid_claim_report_id
+        mov     eax, [t_id]
+        cmp     eax, -1
+        jne     @f
+        mov     eax, [p_report_id]
+        mov     [t_id], eax
+        clc
+        ret
+@@:
+        cmp     eax, [p_report_id]
+        jne     .taken
+        clc
+        ret
+.taken:
+        stc
+        ret
+endp
+
+; Bit offset of field #ecx of the current item.
+; in: ecx = field index. out: eax = v_base + ecx * report_size.
+proc hid_field_offset
+        mov     eax, [p_report_size]
+        imul    eax, ecx
+        add     eax, [v_base]
+        ret
+endp
+
+; Parses the report descriptor.
+; in: esi -> descriptor, ecx = length.
+; out: eax = 1 and f_* variables filled if a usable report was found.
+proc hid_parse_report_desc uses ebx esi edi
+        lea     edi, [esi+ecx]
+        xor     eax, eax
+        mov     [p_usage_page], eax
+        mov     [p_report_size], eax
+        mov     [p_report_count], eax
+        mov     [p_report_id], eax
+        mov     [p_uses_repid], eax
+        mov     [p_usage_cnt], eax
+        mov     [p_idcnt], eax
+        mov     [p_log_max], eax
+        mov     [t_padmaxx], eax
+        mov     [t_padmaxy], eax
+        mov     [t_have], eax
+        mov     [t_btncnt], eax
+        mov     [t_wsize], eax
+        mov     [p_usage_min], -1
+        mov     [p_usage_max], -1
+        mov     [t_id], -1
+        mov     [t_btnid], -2
+        mov     [t_ptp_id], -1
+        mov     [t_fcount], eax
+        mov     [t_ccnt_size], eax
+        mov     [t_pbtn_cnt], eax
+        mov     [t_ptp_bytes], eax
+.loop:
+        cmp     esi, edi
+        jae     .eof
+        movzx   eax, byte [esi]
+        inc     esi
+        cmp     al, 0xFE
+        je      .long_item
+        mov     ecx, eax
+        and     ecx, 3
+        cmp     ecx, 3
+        jne     @f
+        inc     ecx                     ; size code 3 means 4 bytes
+@@:
+        lea     ebx, [esi+ecx]
+        cmp     ebx, edi
+        ja      .eof
+        xor     edx, edx
+        jecxz   .no_data
+        cmp     ecx, 1
+        jne     @f
+        movzx   edx, byte [esi]
+        jmp     .have_data
+@@:
+        cmp     ecx, 2
+        jne     @f
+        movzx   edx, word [esi]
+        jmp     .have_data
+@@:
+        mov     edx, [esi]
+.have_data:
+        add     esi, ecx
+.no_data:
+        and     eax, 0xFC
+; Global items
+        cmp     al, 0x04
+        je      .g_usage_page
+        cmp     al, 0x84
+        je      .g_report_id
+        cmp     al, 0x74
+        je      .g_report_size
+        cmp     al, 0x94
+        je      .g_report_count
+        cmp     al, 0x24
+        je      .g_log_max
+; Local items
+        cmp     al, 0x08
+        je      .l_usage
+        cmp     al, 0x18
+        je      .l_usage_min
+        cmp     al, 0x28
+        je      .l_usage_max
+; Main items
+        cmp     al, 0x80
+        je      .m_input
+        cmp     al, 0x90
+        je      .m_clear_locals
+        cmp     al, 0xB0
+        je      .m_feature
+        cmp     al, 0xA0
+        je      .m_clear_locals
+        cmp     al, 0xC0
+        je      .m_clear_locals
+        jmp     .loop
+.g_usage_page:
+        and     edx, 0xFFFF
+        mov     [p_usage_page], edx
+        jmp     .loop
+.g_report_id:
+        mov     [p_report_id], edx
+        mov     [p_uses_repid], 1
+        jmp     .loop
+.g_report_size:
+        mov     [p_report_size], edx
+        jmp     .loop
+.g_report_count:
+        mov     [p_report_count], edx
+        jmp     .loop
+.g_log_max:
+        mov     [p_log_max], edx
+        jmp     .loop
+.l_usage:
+        mov     ebx, [p_usage_cnt]
+        cmp     ebx, HID_MAX_USAGES
+        jae     .loop
+        cmp     ecx, 4                  ; 4-byte usage carries its own page
+        je      @f
+        mov     eax, [p_usage_page]
+        shl     eax, 16
+        or      edx, eax
+@@:
+        mov     [p_usages+ebx*4], edx
+        inc     [p_usage_cnt]
+        jmp     .loop
+.l_usage_min:
+        mov     [p_usage_min], edx
+        jmp     .loop
+.l_usage_max:
+        mov     [p_usage_max], edx
+        jmp     .loop
+.m_input:
+        mov     [v_flags], edx
+        call    hid_process_input
+        jmp     .m_clear_locals         ; input bits are not feature bits
+.m_feature:
+; Feature reports are only ever written, never decoded, but writing one
+; needs its exact size: a SET_REPORT shorter than the report is ignored by
+; some firmwares (the Elan Input Mode report has two bytes, mode and the
+; selective-reporting switches - one byte does nothing there).
+        call    hid_get_bits_slot
+        mov     eax, [p_report_size]
+        imul    eax, [p_report_count]
+        add     [p_fbits+ecx*4], eax
+.m_clear_locals:
+        xor     eax, eax
+        mov     [p_usage_cnt], eax
+        mov     [p_usage_min], -1
+        mov     [p_usage_max], -1
+        jmp     .loop
+.long_item:
+        cmp     esi, edi
+        jae     .eof
+        movzx   ecx, byte [esi]
+        lea     esi, [esi+ecx+2]
+        jmp     .loop
+.eof:
+; Size of the touchpad report, when there is one.
+        mov     eax, [t_ptp_id]
+        cmp     eax, -1
+        je      .no_ptp
+        xor     ecx, ecx
+@@:
+        cmp     ecx, [p_idcnt]
+        jae     .no_ptp
+        cmp     eax, [p_ids+ecx*4]
+        je      @f
+        inc     ecx
+        jmp     @b
+@@:
+        mov     eax, [p_bits+ecx*4]
+        add     eax, 7
+        shr     eax, 3
+        mov     [t_ptp_bytes], eax
+.no_ptp:
+; Success needs relative X and Y in the same report - or, failing that, a
+; touchpad report with at least one complete finger, which is then the only
+; thing the device will be driven through.
+        mov     eax, [t_have]
+        and     eax, 3
+        cmp     eax, 3
+        je      .have_mouse
+        cmp     [t_fcount], 0
+        je      .fail
+        cmp     dword [t_fxs], 0
+        je      .fail
+        cmp     dword [t_fys], 0
+        je      .fail
+        mov     [f_repid], -1           ; no mouse report to match
+        mov     [f_bytes], 0
+        mov     [t_btncnt], 0
+        movi    eax, 1
+        ret
+.have_mouse:
+; Keep buttons/wheel only when they live in the chosen report.
+        mov     eax, [t_btnid]
+        cmp     eax, [t_id]
+        je      @f
+        mov     [t_btncnt], 0
+@@:
+; Final layout.
+        mov     eax, [t_id]
+        mov     [f_repid], eax
+        xor     ecx, ecx
+@@:
+        cmp     ecx, [p_idcnt]
+        jae     .no_bits
+        cmp     eax, [p_ids+ecx*4]
+        je      .got_bits
+        inc     ecx
+        jmp     @b
+.got_bits:
+        mov     eax, [p_bits+ecx*4]
+        add     eax, 7
+        shr     eax, 3
+        mov     [f_bytes], eax
+        movi    eax, 1
+        ret
+.no_bits:
+.fail:
+        xor     eax, eax
+        ret
+endp
+
+; Extracts an unsigned field from an input report.
+; in: esi -> report data, eax = bit offset, ecx = bit count (1..24).
+; out: eax = value.
+proc hid_extract_u
+        push    ebx ecx edx
+        mov     edx, eax
+        shr     edx, 3
+        mov     ebx, [esi+edx]          ; buffer has spare bytes at the end
+        and     eax, 7
+        push    ecx
+        mov     ecx, eax
+        shr     ebx, cl
+        pop     ecx
+        neg     ecx
+        add     ecx, 32
+        shl     ebx, cl
+        shr     ebx, cl
+        mov     eax, ebx
+        pop     edx ecx ebx
+        ret
+endp
+
+; Same, sign-extended.
+proc hid_extract_s
+        push    ebx ecx edx
+        mov     edx, eax
+        shr     edx, 3
+        mov     ebx, [esi+edx]
+        and     eax, 7
+        push    ecx
+        mov     ecx, eax
+        shr     ebx, cl
+        pop     ecx
+        neg     ecx
+        add     ecx, 32
+        shl     ebx, cl
+        sar     ebx, cl
+        mov     eax, ebx
+        pop     edx ecx ebx
+        ret
+endp

drivers/i2chid/system.ini

@@ -0,0 +1,26 @@
+[touchpad]
+; pointer speed in percent of the driver's default (on top of the [mouse]
+; speed above; pads differ in resolution)
+speed=100
+; how far a finger must move before the pointer follows, in pad units;
+; larger is steadier under a pressing finger, 0 turns the filter off
+jitter=1
+; the same, for a finger that landed on the button strip: it is pressing
+; rather than steering there, so it needs a stricter margin
+jitter_buttons=45
+; pad units of two-finger travel per wheel step, and the direction
+scroll_step=64
+scroll_invert=0
+; turn a short, still touch into a click: one finger left, two right,
+; three middle
+tap_enable=1
+; tap, then touch again at once and move: the button stays down for that
+; second touch - this is how text is selected and how one draws
+tap_drag=1
+; right click: 0 never, 1 bottom-right corner, 2 by finger count (two
+; fingers right, three middle), 3 either
+right_click=1
+; button strip along the bottom edge, in percent of the surface: its
+; height, and where its left half ends
+button_zone=15
+right_split=50

drivers/i2chid/tpreload.asm

@@ -0,0 +1,72 @@
+; Asks the I2C touchpad driver to read its settings again.
+;
+; The driver takes everything it can be tuned with from the [touchpad] section
+; of /sys/settings/system.ini, and it reads that file once while loading. This
+; tells it to read the file again, so editing a setting takes effect straight
+; away instead of at the next boot.
+;
+; There is no window: the outcome goes to the debug board, the way the driver
+; reports everything else.
+
+format binary as ""
+use32
+        db      'MENUET01'
+        dd      1, start, i_end, mem, mem, 0, 0
+
+include '../../programs/macros.inc'
+
+SRV_RELOAD_CONF = 1
+
+start:
+; 1. Find the driver's service by name.
+        mcall   68, 16, srv_name
+        test    eax, eax
+        jz      .no_driver
+        mov     [ioctl.handle], eax
+; 2. Ask it to reload. No data travels either way: the driver reads the file
+;    itself, so the settings file stays the only place they are written down.
+        mcall   68, 17, ioctl
+        test    eax, eax
+        jnz     .refused
+        mov     esi, msg_ok
+        jmp     .say
+.no_driver:
+        mov     esi, msg_no_driver
+        jmp     .say
+.refused:
+        mov     esi, msg_refused
+.say:
+        call    board_str
+        or      eax, -1
+        mcall
+
+; Writes a zero-terminated string to the debug board.
+; in: esi -> string
+board_str:
+        lodsb
+        test    al, al
+        jz      .done
+        mov     cl, al
+        mcall   63, 1
+        jmp     board_str
+.done:
+        ret
+
+srv_name        db 'I2CHID', 0
+
+align 4
+ioctl:
+.handle         dd 0
+.io_code        dd SRV_RELOAD_CONF
+.input          dd 0
+.inp_size       dd 0
+.output         dd 0
+.out_size       dd 0
+
+msg_ok          db 'tpreload: touchpad settings reloaded', 13, 10, 0
+msg_no_driver   db 'tpreload: the I2C touchpad driver is not loaded', 13, 10, 0
+msg_refused     db 'tpreload: the driver refused the request', 13, 10, 0
+
+i_end:
+        rb      1024
+mem:

drivers/include/acpi/acpi.h

@@ -1,68 +0,0 @@
-#ifndef _ACPI_ACPI_H
-#define _ACPI_ACPI_H
-/*
- * Minimal ACPI-CA type surface for KolibriOS.
- *
- * CONFIG_ACPI is never defined here, so <linux/acpi.h> compiles only its
- * "no ACPI" branch - but that branch still mentions a handful of ACPI-CA
- * types in the signatures of its inline stubs.  Those types are what this
- * header provides; there is no ACPI interpreter behind them.
- */
-#include <linux/types.h>
-
-typedef u32  acpi_status;
-typedef u32  acpi_object_type;
-typedef u64  acpi_size;
-typedef u64  acpi_io_address;
-typedef u64  acpi_physical_address;
-typedef void *acpi_handle;
-typedef char *acpi_string;
-
-#define AE_OK			((acpi_status) 0x0000)
-#define AE_ERROR		((acpi_status) 0x0001)
-#define AE_NOT_FOUND		((acpi_status) 0x0005)
-#define AE_SUPPORT		((acpi_status) 0x001D)
-
-#define ACPI_SUCCESS(a)		((a) == AE_OK)
-#define ACPI_FAILURE(a)		((a) != AE_OK)
-
-#define ACPI_TYPE_INTEGER	0x01
-#define ACPI_TYPE_STRING	0x02
-#define ACPI_TYPE_BUFFER	0x03
-#define ACPI_TYPE_PACKAGE	0x04
-#define ACPI_TYPE_ANY		0x00
-
-union acpi_object {
-	acpi_object_type type;
-	struct {
-		acpi_object_type type;
-		u64 value;
-	} integer;
-	struct {
-		acpi_object_type type;
-		u32 length;
-		char *pointer;
-	} string;
-	struct {
-		acpi_object_type type;
-		u32 length;
-		u8 *pointer;
-	} buffer;
-	struct {
-		acpi_object_type type;
-		u32 count;
-		union acpi_object *elements;
-	} package;
-};
-
-struct acpi_buffer {
-	acpi_size length;
-	void	 *pointer;
-};
-
-struct acpi_object_list {
-	u32 count;
-	union acpi_object *pointer;
-};
-
-#endif /* _ACPI_ACPI_H */

drivers/include/acpi/button.h

@@ -1,13 +0,0 @@
-#ifndef ACPI_BUTTON_H
-#define ACPI_BUTTON_H
-#include <linux/errno.h>
-#include <linux/notifier.h>
-/*
- * nouveau_connector.c asks the ACPI lid device whether the panel is open
- * before trusting an LVDS hotplug.  No ACPI here, so report "open" - the same
- * answer the upstream !CONFIG_ACPI_BUTTON stub gives.
- */
-static inline int acpi_lid_open(void) { return 1; }
-static inline int acpi_lid_notifier_register(struct notifier_block *nb) { return -ENODEV; }
-static inline int acpi_lid_notifier_unregister(struct notifier_block *nb) { return -ENODEV; }
-#endif

drivers/include/acpi/pdc_intel.h

@@ -1,40 +0,0 @@
-#ifndef _ACPI_PDC_INTEL_H
-#define _ACPI_PDC_INTEL_H
-/*
- * Intel _PDC / _OSC capability bits, included unconditionally by <asm/acpi.h>.
- *
- * Nothing here evaluates these - KolibriOS drivers never negotiate processor
- * capabilities with the firmware - but the definitions have to exist for
- * <linux/acpi.h> to be includable at all.  Values match the kernel's
- * include/acpi/pdc_intel.h.
- */
-
-#define ACPI_PDC_P_FFH			(0x0001)
-#define ACPI_PDC_C_C1_HALT		(0x0002)
-#define ACPI_PDC_T_FFH			(0x0004)
-#define ACPI_PDC_SMP_C1PT		(0x0008)
-#define ACPI_PDC_SMP_C2C3		(0x0010)
-#define ACPI_PDC_SMP_P_SWCOORD		(0x0020)
-#define ACPI_PDC_SMP_C_SWCOORD		(0x0040)
-#define ACPI_PDC_SMP_T_SWCOORD		(0x0080)
-#define ACPI_PDC_C_C1_FFH		(0x0100)
-#define ACPI_PDC_C_C2C3_FFH		(0x0200)
-#define ACPI_PDC_SMP_P_HWCOORD		(0x0800)
-
-#define ACPI_PDC_EST_CAPABILITY_SMP	(ACPI_PDC_SMP_C1PT | \
-					 ACPI_PDC_C_C1_HALT | \
-					 ACPI_PDC_P_FFH)
-
-#define ACPI_PDC_EST_CAPABILITY_SWSMP	(ACPI_PDC_SMP_C1PT | \
-					 ACPI_PDC_C_C1_HALT | \
-					 ACPI_PDC_SMP_P_SWCOORD | \
-					 ACPI_PDC_SMP_P_HWCOORD | \
-					 ACPI_PDC_P_FFH)
-
-#define ACPI_PDC_C_CAPABILITY_SMP	(ACPI_PDC_SMP_C2C3 | \
-					 ACPI_PDC_SMP_C1PT | \
-					 ACPI_PDC_C_C1_HALT | \
-					 ACPI_PDC_C_C1_FFH | \
-					 ACPI_PDC_C_C2C3_FFH)
-
-#endif /* _ACPI_PDC_INTEL_H */

drivers/include/acpi/video.h

@@ -1,18 +0,0 @@
-#ifndef __ACPI_VIDEO_H
-#define __ACPI_VIDEO_H
-/* No ACPI video extensions; nouveau_display.c only calls the register hook. */
-#include <linux/errno.h>
-
-enum acpi_backlight_type {
-	acpi_backlight_undef = -1,
-	acpi_backlight_none = 0,
-	acpi_backlight_video,
-	acpi_backlight_vendor,
-	acpi_backlight_native,
-};
-
-static inline int acpi_video_register(void) { return -ENODEV; }
-static inline void acpi_video_unregister(void) { }
-static inline enum acpi_backlight_type acpi_video_get_backlight_type(void)
-{ return acpi_backlight_vendor; }
-#endif

drivers/include/asm-generic/dma-mapping-broken.h

@@ -85,9 +85,6 @@ dma_supported(struct device *dev, u64 mask);
 extern int
 dma_set_mask(struct device *dev, u64 mask);
 
-extern int
-dma_set_coherent_mask(struct device *dev, u64 mask);
-
 extern int
 dma_get_cache_alignment(void);
 

drivers/include/asm/io.h

@@ -315,18 +315,6 @@ extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
 
 #define IO_SPACE_LIMIT 0xffff
 
-/*
- * Write-combining range management.  Upstream declares these under
- * CONFIG_MTRR and provides !MTRR fallbacks from <linux/io.h>, which this tree
- * does not carry - so they are declared unconditionally here and implemented
- * as no-ops by each driver's kos_io.c.  arch_io_*_memtype_wc() is the 4.9
- * spelling that came in with the PAT rework.
- */
-extern int __must_check arch_phys_wc_add(unsigned long base, unsigned long size);
-extern void arch_phys_wc_del(int handle);
-extern int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size);
-extern void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size);
-
 #ifdef CONFIG_MTRR
 extern int __must_check arch_phys_wc_index(int handle);
 #define arch_phys_wc_index arch_phys_wc_index

drivers/include/drm/drmP.h

@@ -359,13 +359,6 @@ struct drm_file {
 	int event_space;
 
 	struct mutex event_read_lock;
-
-	/*
-	 * Upstream stores the opening process here.  Nothing opens a DRM node
-	 * on this port, so it stays NULL; nouveau_drm.c only feeds it to
-	 * pid_nr() when it names a client.
-	 */
-	struct pid *pid;
 };
 
 /**
@@ -685,14 +678,6 @@ struct drm_device {
 	/*@} */
 
 	struct list_head filelist;
-	/*
-	 * Backported from Linux 4.9, which moved filelist from under
-	 * struct_mutex to its own lock.  Nothing in the 4.6 core takes it, so
-	 * it only ever serialises the driver against itself.
-	 */
-	struct mutex filelist_mutex;
-	/* Backported from Linux 4.9; unused without a real inode layer. */
-	struct inode *anon_inode;
 
 	/** \name Memory management */
 	/*@{ */
@@ -763,12 +748,6 @@ struct drm_device {
 //   struct drm_agp_head *agp;   /**< AGP data */
 
 	struct pci_dev *pdev;		/**< PCI device structure */
-	/*
-	 * Always NULL here - no platform bus.  nouveau_drm.c branches on
-	 * pdev vs platformdev when it builds the device name, and the
-	 * Tegra half of that branch is never taken.
-	 */
-	struct platform_device *platformdev;
 #ifdef __alpha__
 	struct pci_controller *hose;
 #endif
@@ -1002,15 +981,6 @@ static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
 }
 void drm_pci_agp_destroy(struct drm_device *dev);
 
-/*
- * Implemented in drm_pci.c and the entry point every port's probe calls, but
- * its upstream declaration is in the "#if 0" block below - so each main.c used
- * to declare it by hand.  Declared here instead.
- */
-extern int drm_get_pci_dev(struct pci_dev *pdev,
-			   const struct pci_device_id *ent,
-			   struct drm_driver *driver);
-
 #if 0
 extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
 extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);

drivers/include/drm/drm_crtc.h

@@ -152,13 +152,6 @@ struct drm_display_info {
 	u8 edid_hdmi_dc_modes;
 
 	u8 cea_rev;
-
-	/*
-	 * Backported from Linux 4.9: maximum TMDS clock in kHz advertised by an
-	 * HDMI sink.  drm_edid.c in this tree does not fill it in yet, so it
-	 * stays 0 and drivers fall back to their built-in limit.
-	 */
-	int max_tmds_clock;
 };
 
 /* data corresponds to displayid vend/prod/serial */
@@ -708,17 +701,6 @@ struct drm_crtc_funcs {
 				   const struct drm_crtc_state *state,
 				   struct drm_property *property,
 				   uint64_t *val);
-
-	/*
-	 * Backported from Linux 4.9 for the amdgpu port.  The 4.6 DRM core in
-	 * this tree never calls these; they exist so that drivers written
-	 * against the newer struct layout still compile and keep their hooks.
-	 */
-	void (*early_unregister)(struct drm_crtc *crtc);
-	int (*page_flip_target)(struct drm_crtc *crtc,
-				struct drm_framebuffer *fb,
-				struct drm_pending_vblank_event *event,
-				uint32_t flags, uint32_t target);
 };
 
 /**
@@ -1062,9 +1044,6 @@ struct drm_connector_funcs {
 				   const struct drm_connector_state *state,
 				   struct drm_property *property,
 				   uint64_t *val);
-
-	/* Backported from Linux 4.9 - see drm_crtc_funcs::early_unregister. */
-	void (*early_unregister)(struct drm_connector *connector);
 };
 
 /**
@@ -1090,9 +1069,6 @@ struct drm_encoder_funcs {
 	 * hotplugged in DRM.
 	 */
 	void (*destroy)(struct drm_encoder *encoder);
-
-	/* Backported from Linux 4.9 - see drm_crtc_funcs::early_unregister. */
-	void (*early_unregister)(struct drm_encoder *encoder);
 };
 
 #define DRM_CONNECTOR_MAX_ENCODER 3
@@ -1514,9 +1490,6 @@ struct drm_plane_funcs {
 				   const struct drm_plane_state *state,
 				   struct drm_property *property,
 				   uint64_t *val);
-
-	/* Backported from Linux 4.9 - see drm_crtc_funcs::early_unregister. */
-	void (*early_unregister)(struct drm_plane *plane);
 };
 
 enum drm_plane_type {

drivers/include/drm/drm_crtc_helper.h

@@ -43,15 +43,6 @@
 #include <drm/drm_modeset_helper_vtables.h>
 
 extern void drm_helper_disable_unused_functions(struct drm_device *dev);
-
-/*
- * Added after 4.6 and implemented by each port's kos_stubs.c:
- * drm_crtc_force_disable_all() is 4.9's unload-time "turn everything off",
- * and drm_kms_helper_is_poll_worker() is how 4.9 avoids deadlocking against
- * its own hotplug worker - there is no such worker here.
- */
-extern void drm_crtc_force_disable_all(struct drm_device *dev);
-extern bool drm_kms_helper_is_poll_worker(void);
 extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
 extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
 				     struct drm_display_mode *mode,

drivers/include/drm/drm_encoder_slave.h

@@ -1,182 +0,0 @@
-/*
- * Copyright (C) 2009 Francisco Jerez.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef __DRM_ENCODER_SLAVE_H__
-#define __DRM_ENCODER_SLAVE_H__
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc.h>
-
-/**
- * struct drm_encoder_slave_funcs - Entry points exposed by a slave encoder driver
- * @set_config:	Initialize any encoder-specific modesetting parameters.
- *		The meaning of the @params parameter is implementation
- *		dependent. It will usually be a structure with DVO port
- *		data format settings or timings. It's not required for
- *		the new parameters to take effect until the next mode
- *		is set.
- *
- * Most of its members are analogous to the function pointers in
- * &drm_encoder_helper_funcs and they can optionally be used to
- * initialize the latter. Connector-like methods (e.g. @get_modes and
- * @set_property) will typically be wrapped around and only be called
- * if the encoder is the currently selected one for the connector.
- */
-struct drm_encoder_slave_funcs {
-	void (*set_config)(struct drm_encoder *encoder,
-			   void *params);
-
-	void (*destroy)(struct drm_encoder *encoder);
-	void (*dpms)(struct drm_encoder *encoder, int mode);
-	void (*save)(struct drm_encoder *encoder);
-	void (*restore)(struct drm_encoder *encoder);
-	bool (*mode_fixup)(struct drm_encoder *encoder,
-			   const struct drm_display_mode *mode,
-			   struct drm_display_mode *adjusted_mode);
-	int (*mode_valid)(struct drm_encoder *encoder,
-			  struct drm_display_mode *mode);
-	void (*mode_set)(struct drm_encoder *encoder,
-			 struct drm_display_mode *mode,
-			 struct drm_display_mode *adjusted_mode);
-
-	enum drm_connector_status (*detect)(struct drm_encoder *encoder,
-					    struct drm_connector *connector);
-	int (*get_modes)(struct drm_encoder *encoder,
-			 struct drm_connector *connector);
-	int (*create_resources)(struct drm_encoder *encoder,
-				 struct drm_connector *connector);
-	int (*set_property)(struct drm_encoder *encoder,
-			    struct drm_connector *connector,
-			    struct drm_property *property,
-			    uint64_t val);
-
-};
-
-/**
- * struct drm_encoder_slave - Slave encoder struct
- * @base: DRM encoder object.
- * @slave_funcs: Slave encoder callbacks.
- * @slave_priv: Slave encoder private data.
- * @bus_priv: Bus specific data.
- *
- * A &drm_encoder_slave has two sets of callbacks, @slave_funcs and the
- * ones in @base. The former are never actually called by the common
- * CRTC code, it's just a convenience for splitting the encoder
- * functions in an upper, GPU-specific layer and a (hopefully)
- * GPU-agnostic lower layer: It's the GPU driver responsibility to
- * call the slave methods when appropriate.
- *
- * drm_i2c_encoder_init() provides a way to get an implementation of
- * this.
- */
-struct drm_encoder_slave {
-	struct drm_encoder base;
-
-	const struct drm_encoder_slave_funcs *slave_funcs;
-	void *slave_priv;
-	void *bus_priv;
-};
-#define to_encoder_slave(x) container_of((x), struct drm_encoder_slave, base)
-
-int drm_i2c_encoder_init(struct drm_device *dev,
-			 struct drm_encoder_slave *encoder,
-			 struct i2c_adapter *adap,
-			 const struct i2c_board_info *info);
-
-
-/**
- * struct drm_i2c_encoder_driver
- *
- * Describes a device driver for an encoder connected to the GPU
- * through an I2C bus. In addition to the entry points in @i2c_driver
- * an @encoder_init function should be provided. It will be called to
- * give the driver an opportunity to allocate any per-encoder data
- * structures and to initialize the @slave_funcs and (optionally)
- * @slave_priv members of @encoder.
- */
-struct drm_i2c_encoder_driver {
-	struct i2c_driver i2c_driver;
-
-	int (*encoder_init)(struct i2c_client *client,
-			    struct drm_device *dev,
-			    struct drm_encoder_slave *encoder);
-
-};
-#define to_drm_i2c_encoder_driver(x) container_of((x),			\
-						  struct drm_i2c_encoder_driver, \
-						  i2c_driver)
-
-/**
- * drm_i2c_encoder_get_client - Get the I2C client corresponding to an encoder
- */
-static inline struct i2c_client *drm_i2c_encoder_get_client(struct drm_encoder *encoder)
-{
-	return (struct i2c_client *)to_encoder_slave(encoder)->bus_priv;
-}
-
-/**
- * drm_i2c_encoder_register - Register an I2C encoder driver
- * @owner:	Module containing the driver.
- * @driver:	Driver to be registered.
- */
-static inline int drm_i2c_encoder_register(struct module *owner,
-					   struct drm_i2c_encoder_driver *driver)
-{
-	return i2c_register_driver(owner, &driver->i2c_driver);
-}
-
-/**
- * drm_i2c_encoder_unregister - Unregister an I2C encoder driver
- * @driver:	Driver to be unregistered.
- */
-static inline void drm_i2c_encoder_unregister(struct drm_i2c_encoder_driver *driver)
-{
-	i2c_del_driver(&driver->i2c_driver);
-}
-
-void drm_i2c_encoder_destroy(struct drm_encoder *encoder);
-
-
-/*
- * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs:
- */
-
-void drm_i2c_encoder_dpms(struct drm_encoder *encoder, int mode);
-bool drm_i2c_encoder_mode_fixup(struct drm_encoder *encoder,
-		const struct drm_display_mode *mode,
-		struct drm_display_mode *adjusted_mode);
-void drm_i2c_encoder_prepare(struct drm_encoder *encoder);
-void drm_i2c_encoder_commit(struct drm_encoder *encoder);
-void drm_i2c_encoder_mode_set(struct drm_encoder *encoder,
-		struct drm_display_mode *mode,
-		struct drm_display_mode *adjusted_mode);
-enum drm_connector_status drm_i2c_encoder_detect(struct drm_encoder *encoder,
-	    struct drm_connector *connector);
-void drm_i2c_encoder_save(struct drm_encoder *encoder);
-void drm_i2c_encoder_restore(struct drm_encoder *encoder);
-
-
-#endif

drivers/include/drm/drm_fb_helper.h

@@ -226,14 +226,6 @@ int drm_fb_helper_init(struct drm_device *dev,
 		       struct drm_fb_helper *helper, int crtc_count,
 		       int max_conn);
 void drm_fb_helper_fini(struct drm_fb_helper *helper);
-
-/*
- * 4.9's fbdev handover.  There is no other framebuffer driver to evict on
- * KolibriOS; implemented in each port's kos_stubs.c.
- */
-struct apertures_struct;
-int drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
-						  const char *name, bool primary);
 int drm_fb_helper_blank(int blank, struct fb_info *info);
 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
 			      struct fb_info *info);

drivers/include/drm/drm_fourcc.h

@@ -1,10 +0,0 @@
-#ifndef _DRM_FOURCC_SHIM_H
-#define _DRM_FOURCC_SHIM_H
-/*
- * The tree keeps the format list in uapi/ and the in-kernel helpers in
- * drm_crtc.h.  Upstream drivers include <drm/drm_fourcc.h>; give them that
- * spelling instead of patching every call site.  The guard is deliberately
- * distinct from the uapi header's own.
- */
-#include <uapi/drm/drm_fourcc.h>
-#endif

drivers/include/drm/drm_mode.h

@@ -1,9 +0,0 @@
-#ifndef _DRM_MODE_SHIM_H
-#define _DRM_MODE_SHIM_H
-/*
- * Same reason as drm_fourcc.h: upstream drivers spell this <drm/drm_mode.h>
- * while the tree keeps it under uapi/.  The guard deliberately does not match
- * the uapi header's own _DRM_MODE_H, or including this first would suppress it.
- */
-#include <uapi/drm/drm_mode.h>
-#endif

drivers/include/drm/i2c/ch7006.h

@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2009 Francisco Jerez.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef __DRM_I2C_CH7006_H__
-#define __DRM_I2C_CH7006_H__
-
-/**
- * struct ch7006_encoder_params
- *
- * Describes how the ch7006 is wired up with the GPU. It should be
- * used as the @params parameter of its @set_config method.
- *
- * See "http://www.chrontel.com/pdf/7006.pdf" for their precise
- * meaning.
- */
-struct ch7006_encoder_params {
-	enum {
-		CH7006_FORMAT_RGB16 = 0,
-		CH7006_FORMAT_YCrCb24m16,
-		CH7006_FORMAT_RGB24m16,
-		CH7006_FORMAT_RGB15,
-		CH7006_FORMAT_RGB24m12C,
-		CH7006_FORMAT_RGB24m12I,
-		CH7006_FORMAT_RGB24m8,
-		CH7006_FORMAT_RGB16m8,
-		CH7006_FORMAT_RGB15m8,
-		CH7006_FORMAT_YCrCb24m8,
-	} input_format;
-
-	enum {
-		CH7006_CLOCK_SLAVE = 0,
-		CH7006_CLOCK_MASTER,
-	} clock_mode;
-
-	enum {
-		CH7006_CLOCK_EDGE_NEG = 0,
-		CH7006_CLOCK_EDGE_POS,
-	} clock_edge;
-
-	int xcm, pcm;
-
-	enum {
-		CH7006_SYNC_SLAVE = 0,
-		CH7006_SYNC_MASTER,
-	} sync_direction;
-
-	enum {
-		CH7006_SYNC_SEPARATED = 0,
-		CH7006_SYNC_EMBEDDED,
-	} sync_encoding;
-
-	enum {
-		CH7006_POUT_1_8V = 0,
-		CH7006_POUT_3_3V,
-	} pout_level;
-
-	enum {
-		CH7006_ACTIVE_HSYNC = 0,
-		CH7006_ACTIVE_DSTART,
-	} active_detect;
-};
-
-#endif

drivers/include/drm/i2c/sil164.h

@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2010 Francisco Jerez.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef __DRM_I2C_SIL164_H__
-#define __DRM_I2C_SIL164_H__
-
-/**
- * struct sil164_encoder_params
- *
- * Describes how the sil164 is connected to the GPU. It should be used
- * as the @params parameter of its @set_config method.
- *
- * See "http://www.siliconimage.com/docs/SiI-DS-0021-E-164.pdf".
- */
-struct sil164_encoder_params {
-	enum {
-		SIL164_INPUT_EDGE_FALLING = 0,
-		SIL164_INPUT_EDGE_RISING
-	} input_edge;
-
-	enum {
-		SIL164_INPUT_WIDTH_12BIT = 0,
-		SIL164_INPUT_WIDTH_24BIT
-	} input_width;
-
-	enum {
-		SIL164_INPUT_SINGLE_EDGE = 0,
-		SIL164_INPUT_DUAL_EDGE
-	} input_dual;
-
-	enum {
-		SIL164_PLL_FILTER_ON = 0,
-		SIL164_PLL_FILTER_OFF,
-	} pll_filter;
-
-	int input_skew; /** < Allowed range [-4, 3], use 0 for no de-skew. */
-	int duallink_skew; /** < Allowed range [-4, 3]. */
-};
-
-#endif

drivers/include/drm/ttm/ttm_bo_api.h

@@ -257,15 +257,6 @@ struct ttm_buffer_object {
 	struct reservation_object *resv;
 	struct reservation_object ttm_resv;
 	struct mutex wu_mutex;
-
-	/*
-	 * Backported from Linux 4.9: fence of the last accelerated move, kept
-	 * outside the reservation object so a pipelined eviction can be waited
-	 * on without blocking other users.  The 4.6 TTM in this tree still
-	 * waits synchronously, so the core leaves this NULL; amdgpu sets and
-	 * checks it on its own paths.
-	 */
-	struct fence *moving;
 };
 
 /**

drivers/include/drm/ttm/ttm_bo_driver.h

@@ -434,20 +434,8 @@ struct ttm_bo_driver {
 	 */
 	int (*io_mem_reserve)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
 	void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
-
-	/*
-	 * Backported from Linux 4.9 for the amdgpu port.  The 4.6 TTM in this
-	 * tree does not consult these hooks - it always uses the default LRU
-	 * placement - but drivers written against 4.9 still populate them.
-	 */
-	void (*lru_removal)(struct ttm_buffer_object *bo);
-	struct list_head *(*lru_tail)(struct ttm_buffer_object *bo);
-	struct list_head *(*swap_lru_tail)(struct ttm_buffer_object *bo);
 };
 
-struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo);
-struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo);
-
 /**
  * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global.
  */

drivers/include/linux/clk.h

@@ -1,21 +0,0 @@
-#ifndef _LINUX_CLK_H
-#define _LINUX_CLK_H
-/*
- * Tegra-only.  nvif/os.h pulls this in unconditionally, but the only nouveau
- * code that calls a clk_* helper is nvkm/engine/device/tegra.c, which this
- * port does not build.
- */
-#include <linux/errno.h>
-#include <linux/err.h>
-
-struct clk;
-struct device;
-
-static inline struct clk *clk_get(struct device *dev, const char *id)
-{ return ERR_PTR(-ENOENT); }
-static inline void clk_put(struct clk *clk) { }
-static inline int clk_prepare_enable(struct clk *clk) { return -ENOSYS; }
-static inline void clk_disable_unprepare(struct clk *clk) { }
-static inline unsigned long clk_get_rate(struct clk *clk) { return 0; }
-static inline int clk_set_rate(struct clk *clk, unsigned long rate) { return -ENOSYS; }
-#endif

drivers/include/linux/console.h

@@ -1,14 +0,0 @@
-#ifndef _LINUX_CONSOLE_H
-#define _LINUX_CONSOLE_H
-/* KolibriOS has no VT console layer; the fbdev handover hooks are no-ops. */
-#define CON_PRINTBUFFER	(1)
-#define CON_CONSDEV	(2)
-#define CON_ENABLED	(4)
-#define CON_BOOT	(8)
-#define CON_ANYTIME	(16)
-#define CON_BRL		(32)
-
-static inline void console_lock(void)   { }
-static inline void console_unlock(void) { }
-static inline int  console_trylock(void) { return 1; }
-#endif

drivers/include/linux/debugfs.h

@@ -1,7 +0,0 @@
-#ifndef _LINUX_DEBUGFS_H
-#define _LINUX_DEBUGFS_H
-/* No debugfs in KolibriOS - CONFIG_DEBUG_FS is never defined. */
-#include <linux/types.h>
-struct dentry;
-struct file_operations;
-#endif

drivers/include/linux/device.h

@@ -31,12 +31,6 @@ enum probe_type {
 
 struct device_driver {
 	const char		*name;
-	/*
-	 * Restored for drm_encoder_slave.c, which pins the slave encoder's
-	 * module around a bind.  Nothing is ever bound on this port, so it
-	 * stays NULL and try_module_get()/module_put() are no-ops.
-	 */
-	struct module		*owner;
 	const char		*mod_name;	/* used for built-in modules */
 
 	bool suppress_bind_attrs;	/* disables bind/unbind via sysfs */
@@ -132,28 +126,5 @@ static inline __printf(2, 3)
 void dev_notice(const struct device *dev, const char *fmt, ...)
 {}
 
-/*
- * sysfs attribute types.  KolibriOS has no sysfs, so nothing ever walks these
- * tables - but drivers still declare them at file scope, so the layout has to
- * exist.  Matches the upstream definitions field for field.
- */
-#include <linux/sysfs.h>
-
-struct device_attribute {
-	struct attribute attr;
-	ssize_t (*show)(struct device *dev, struct device_attribute *attr,
-			char *buf);
-	ssize_t (*store)(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count);
-};
-
-#define __ATTR(_name, _mode, _show, _store) {				\
-	.attr  = { .name = __stringify(_name), .mode = (_mode) },	\
-	.show  = _show,							\
-	.store = _store,						\
-}
-
-#define DEVICE_ATTR(_name, _mode, _show, _store) \
-	struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
 
 #endif /* _DEVICE_H_ */

drivers/include/linux/dma-buf.h

@@ -131,12 +131,6 @@ struct dma_buf {
 	const char *exp_name;
 	struct list_head list_node;
 	void *priv;
-	/*
-	 * Upstream keeps the exporter's reservation object here.  No dma-buf
-	 * is ever created on this port, so nouveau_prime.c's import path is
-	 * dead code - but it dereferences the field, so it has to exist.
-	 */
-	struct reservation_object *resv;
 };
 
 /**

drivers/include/linux/efi.h

@@ -1,7 +0,0 @@
-#ifndef _LINUX_EFI_H
-#define _LINUX_EFI_H
-/* KolibriOS boots via BIOS only; amdgpu only tests efi_enabled(). */
-#define EFI_BOOT		0
-#define EFI_RUNTIME_SERVICES	1
-static inline bool efi_enabled(int feature) { return false; }
-#endif

drivers/include/linux/fb.h

@@ -470,12 +470,7 @@ struct fb_info {
 	struct fb_fix_screeninfo fix;	/* Current fix */
 	struct fb_monspecs monspecs;	/* Current Monitor specs */
 //   struct work_struct queue;   /* Framebuffer event queue */
-	/*
-	 * Restored for nouveau, which sets pixmap.buf_align after
-	 * drm_fb_helper_initial_config().  Nothing on this port consumes the
-	 * field - there is no fbcon - but the assignment has to compile.
-	 */
-	struct fb_pixmap pixmap;    /* Image hardware mapper */
+//   struct fb_pixmap pixmap;    /* Image hardware mapper */
 //   struct fb_pixmap sprite;    /* Cursor hardware mapper */
 //   struct fb_cmap cmap;        /* Current cmap */
 	struct list_head modelist;      /* mode list */

drivers/include/linux/fence-array.h

@@ -1,83 +0,0 @@
-/*
- * fence-array: aggregates fence to be waited together
- *
- * Copyright (C) 2016 Collabora Ltd
- * Copyright (C) 2016 Advanced Micro Devices, Inc.
- * Authors:
- *	Gustavo Padovan <gustavo@padovan.org>
- *	Christian König <christian.koenig@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- */
-
-#ifndef __LINUX_FENCE_ARRAY_H
-#define __LINUX_FENCE_ARRAY_H
-
-#include <linux/fence.h>
-
-/**
- * struct fence_array_cb - callback helper for fence array
- * @cb: fence callback structure for signaling
- * @array: reference to the parent fence array object
- */
-struct fence_array_cb {
-	struct fence_cb cb;
-	struct fence_array *array;
-};
-
-/**
- * struct fence_array - fence to represent an array of fences
- * @base: fence base class
- * @lock: spinlock for fence handling
- * @num_fences: number of fences in the array
- * @num_pending: fences in the array still pending
- * @fences: array of the fences
- */
-struct fence_array {
-	struct fence base;
-
-	spinlock_t lock;
-	unsigned num_fences;
-	atomic_t num_pending;
-	struct fence **fences;
-};
-
-extern const struct fence_ops fence_array_ops;
-
-/**
- * fence_is_array - check if a fence is from the array subsclass
- *
- * Return true if it is a fence_array and false otherwise.
- */
-static inline bool fence_is_array(struct fence *fence)
-{
-	return fence->ops == &fence_array_ops;
-}
-
-/**
- * to_fence_array - cast a fence to a fence_array
- * @fence: fence to cast to a fence_array
- *
- * Returns NULL if the fence is not a fence_array,
- * or the fence_array otherwise.
- */
-static inline struct fence_array *to_fence_array(struct fence *fence)
-{
-	if (fence->ops != &fence_array_ops)
-		return NULL;
-
-	return container_of(fence, struct fence_array, base);
-}
-
-struct fence_array *fence_array_create(int num_fences, struct fence **fences,
-				       u64 context, unsigned seqno,
-				       bool signal_on_any);
-
-#endif /* __LINUX_FENCE_ARRAY_H */

drivers/include/linux/hrtimer.h

@@ -1,35 +0,0 @@
-#ifndef _LINUX_HRTIMER_H
-#define _LINUX_HRTIMER_H
-/*
- * amdgpu_mode.h only embeds a struct hrtimer in the virtual-DCE crtc and never
- * arms it on this port, so a structural stub is enough.
- */
-#include <linux/types.h>
-#include <linux/ktime.h>
-
-enum hrtimer_restart { HRTIMER_NORESTART, HRTIMER_RESTART };
-enum hrtimer_mode {
-	HRTIMER_MODE_ABS	= 0x0,
-	HRTIMER_MODE_REL	= 0x1,
-	HRTIMER_MODE_PINNED	= 0x2,
-};
-enum hrtimer_base_type { HRTIMER_BASE_MONOTONIC, HRTIMER_MAX_CLOCK_BASES };
-
-struct hrtimer {
-	ktime_t	_softexpires;
-	enum hrtimer_restart (*function)(struct hrtimer *);
-	int	state;
-};
-
-static inline void hrtimer_init(struct hrtimer *timer, int which, enum hrtimer_mode mode)
-	{ timer->function = NULL; timer->state = 0; }
-static inline int  hrtimer_start(struct hrtimer *t, ktime_t tim, enum hrtimer_mode m) { return 0; }
-static inline int  hrtimer_cancel(struct hrtimer *t) { return 0; }
-static inline int  hrtimer_try_to_cancel(struct hrtimer *t) { return 0; }
-static inline bool hrtimer_active(const struct hrtimer *t) { return false; }
-static inline void hrtimer_start_range_ns(struct hrtimer *t, ktime_t tim,
-					  u64 range_ns, enum hrtimer_mode m) { }
-
-/* Sleeps through the DDK's delay(); see the driver's kos_* glue. */
-extern int schedule_hrtimeout(ktime_t *expires, const enum hrtimer_mode mode);
-#endif

drivers/include/linux/hwmon-sysfs.h

@@ -1,27 +0,0 @@
-#ifndef _LINUX_HWMON_SYSFS_H
-#define _LINUX_HWMON_SYSFS_H
-/* sysfs is absent; amdgpu_pm.c's hwmon attributes are compiled out to stubs. */
-#include <linux/device.h>
-
-struct sensor_device_attribute {
-	struct device_attribute dev_attr;
-	int index;
-};
-#define to_sensor_dev_attr(_dev_attr) \
-	container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
-
-#define SENSOR_ATTR(_name, _mode, _show, _store, _index) \
-	{ .dev_attr = __ATTR(_name, _mode, _show, _store), .index = _index }
-
-#define SENSOR_DEVICE_ATTR(_name, _mode, _show, _store, _index) \
-	struct sensor_device_attribute sensor_dev_attr_##_name = \
-		SENSOR_ATTR(_name, _mode, _show, _store, _index)
-
-struct sensor_device_attribute_2 {
-	struct device_attribute dev_attr;
-	u8 index;
-	u8 nr;
-};
-#define to_sensor_dev_attr_2(_dev_attr) \
-	container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
-#endif

drivers/include/linux/i2c.h

@@ -52,19 +52,6 @@ struct i2c_board_info;
 extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 			int num);
 
-/*
- * Declared here rather than left implicit: i2c-core.c defines them, and
- * nouveau reaches all three - i2c_new_device()/i2c_unregister_device() from
- * nvkm/subdev/therm/ic.c, i2c_register_driver() through the i2c_add_driver()
- * inline below.
- */
-struct module;
-extern int i2c_register_driver(struct module *owner, struct i2c_driver *driver);
-extern void i2c_del_driver(struct i2c_driver *driver);
-extern struct i2c_client *i2c_new_device(struct i2c_adapter *adap,
-					 struct i2c_board_info const *info);
-extern void i2c_unregister_device(struct i2c_client *client);
-
 /**
  * struct i2c_driver - represent an I2C device driver
  * @class: What kind of i2c device we instantiate (for detect)
@@ -127,18 +114,11 @@ struct i2c_driver {
 	 */
 	int (*command)(struct i2c_client *client, unsigned int cmd, void *arg);
 
-	/*
-	 * Restored for nouveau: nvkm/subdev/therm/ic.c reaches the bound
-	 * driver through to_i2c_driver(client->dev.driver)->detect().  There
-	 * is no driver-model binding on this port, so dev.driver is always
-	 * NULL and the probe short-circuits - but the fields have to exist
-	 * for to_i2c_driver() to compile.
-	 */
-	struct device_driver driver;
+//	struct device_driver driver;
 	const struct i2c_device_id *id_table;
 
 	/* Device detection callback for automatic device creation */
-	int (*detect)(struct i2c_client *, struct i2c_board_info *);
+//	int (*detect)(struct i2c_client *, struct i2c_board_info *);
 	const unsigned short *address_list;
 	struct list_head clients;
 };

drivers/include/linux/interrupt.h

@@ -5,18 +5,6 @@
 #include <linux/kernel.h>
 #include <linux/bitops.h>
 #include <linux/irqreturn.h>
-
-/*
- * Taking an interrupt outside drm_irq_install().  nouveau's nvkm_pci_init()
- * does exactly that, so the driver supplies request_irq()/free_irq() over
- * AttachIntHandler(); the signatures are upstream's.
- */
-typedef irqreturn_t (*irq_handler_t)(int irq, void *dev_id);
-
-extern int request_irq(unsigned int irq, irq_handler_t handler,
-		       unsigned long flags, const char *name, void *dev_id);
-extern void free_irq(unsigned int irq, void *dev_id);
-
 #include <linux/kref.h>
 #include <linux/atomic.h>
 /*

drivers/include/linux/iommu.h

@@ -1,37 +0,0 @@
-#ifndef _LINUX_IOMMU_H
-#define _LINUX_IOMMU_H
-/*
- * No IOMMU on this port.  nvif/os.h includes it unconditionally; the only user
- * is the Tegra SMMU path in nvkm/engine/device/tegra.c, which is not built.
- */
-#include <linux/errno.h>
-#include <linux/types.h>
-
-#define IOMMU_READ	(1 << 0)
-#define IOMMU_WRITE	(1 << 1)
-#define IOMMU_CACHE	(1 << 2)
-
-struct device;
-struct iommu_domain;
-struct iommu_group;
-
-struct iommu_domain_geometry {
-	dma_addr_t aperture_start;
-	dma_addr_t aperture_end;
-	bool force_aperture;
-};
-
-static inline struct iommu_domain *iommu_domain_alloc(void *bus) { return NULL; }
-static inline void iommu_domain_free(struct iommu_domain *d) { }
-static inline int iommu_attach_device(struct iommu_domain *d, struct device *dev)
-{ return -ENODEV; }
-static inline void iommu_detach_device(struct iommu_domain *d, struct device *dev) { }
-static inline struct iommu_group *iommu_group_get(struct device *dev) { return NULL; }
-static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
-			    phys_addr_t paddr, size_t size, int prot)
-{ return -ENODEV; }
-static inline size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
-				 size_t size)
-{ return 0; }
-static inline void iommu_group_put(struct iommu_group *g) { }
-#endif

drivers/include/linux/irq.h

@@ -1,27 +0,0 @@
-#ifndef _LINUX_IRQ_H
-#define _LINUX_IRQ_H
-/*
- * KolibriOS has no irq_domain layer.  amdgpu_irq.c is patched to dispatch IH
- * ring entries straight to the registered amdgpu_irq_src, so only the types it
- * still mentions need to exist.
- */
-#include <linux/types.h>
-
-struct irq_data {
-	unsigned int	 irq;
-	unsigned long	 hwirq;
-	void		*chip_data;
-};
-
-struct irq_chip {
-	const char	*name;
-	void		(*irq_mask)(struct irq_data *data);
-	void		(*irq_unmask)(struct irq_data *data);
-};
-
-static inline void *irq_data_get_irq_chip_data(struct irq_data *d)
-{
-	return d ? d->chip_data : NULL;
-}
-static inline void handle_simple_irq(void) { }
-#endif

drivers/include/linux/irqdomain.h

@@ -1,41 +0,0 @@
-#ifndef _LINUX_IRQDOMAIN_H
-#define _LINUX_IRQDOMAIN_H
-/*
- * KolibriOS has no irq domain layer.
- *
- * amdgpu builds a linear domain purely so that a *different* driver (the ACP
- * audio co-processor) can receive GPU interrupts by Linux irq number.  ACP is
- * not part of this port, so no mapping is ever created: adev->irq.virq[] stays
- * zero and amdgpu_irq_dispatch() always takes its direct-call branch.
- *
- * These declarations therefore exist to keep the domain setup compiling and
- * succeeding; the implementations in the driver's kos_stubs.c do nothing.
- */
-#include <linux/types.h>
-#include <linux/irq.h>
-
-typedef unsigned long irq_hw_number_t;
-
-struct irq_domain;
-struct device_node;
-
-struct irq_domain_ops {
-	int  (*map)(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw);
-	void (*unmap)(struct irq_domain *d, unsigned int virq);
-	int  (*xlate)(struct irq_domain *d, struct device_node *node,
-		      const u32 *intspec, unsigned int intsize,
-		      unsigned long *out_hwirq, unsigned int *out_type);
-};
-
-struct irq_domain *irq_domain_add_linear(struct device_node *of_node,
-					 unsigned int size,
-					 const struct irq_domain_ops *ops,
-					 void *host_data);
-void	 irq_domain_remove(struct irq_domain *domain);
-unsigned int irq_create_mapping(struct irq_domain *domain, irq_hw_number_t hwirq);
-unsigned int irq_find_mapping(struct irq_domain *domain, irq_hw_number_t hwirq);
-int	 generic_handle_irq(unsigned int irq);
-void	 irq_set_chip_and_handler(unsigned int irq, struct irq_chip *chip,
-				  void (*handle)(void));
-
-#endif /* _LINUX_IRQDOMAIN_H */

drivers/include/linux/kernel.h

@@ -684,20 +684,7 @@ typedef union
 	u64 raw;
 }evhandle_t;
 
-/*
- * KolibriOS has no user address space that drivers can map into, so these are
- * placeholders.  The fields exist because the mmap/userptr entry points of the
- * ported DRM drivers reference them; those paths are never reached, since no
- * ioctl surface is exposed to user code.
- */
-struct vm_area_struct {
-	unsigned long	 vm_start;
-	unsigned long	 vm_end;
-	unsigned long	 vm_pgoff;
-	unsigned long	 vm_flags;
-	struct file	*vm_file;
-	void		*vm_private_data;
-};
+struct vm_area_struct {};
 struct address_space {};
 
 #define in_dbg_master() (0)
@@ -744,13 +731,6 @@ int del_timer(struct timer_list *timer);
 
 #define mmiowb() barrier()
 
-/* String-to-integer conversions; each driver's kos_kernel.c implements them. */
-extern int kstrtol(const char *s, unsigned int base, long *res);
-extern int kstrtoul(const char *s, unsigned int base, unsigned long *res);
-extern int kstrtoint(const char *s, unsigned int base, int *res);
-extern int kstrtou32(const char *s, unsigned int base, u32 *res);
-
-
 #define dev_err(dev, format, arg...)            \
         printk("Error %s " format, __func__ , ## arg)
 
@@ -760,18 +740,6 @@ extern int kstrtou32(const char *s, unsigned int base, u32 *res);
 #define dev_info(dev, format, arg...)       \
         printk("Info %s " format , __func__, ## arg)
 
-/*
- * nouveau routes all of its logging through dev_*() (NV_PRINTK in
- * nouveau_drv.h picks the level by name), so the two levels the other drivers
- * never needed have to exist as well.  dev_dbg() keeps its arguments checked
- * but emits nothing, matching the !CONFIG_DYNAMIC_DEBUG behaviour upstream.
- */
-#define dev_crit(dev, format, arg...)            \
-        printk("Critical %s " format, __func__ , ## arg)
-
-#define dev_dbg(dev, format, arg...)             \
-        do { if (0) printk(format, ## arg); } while (0)
-
 struct page
 {
     unsigned int addr;

drivers/include/linux/kfifo.h

@@ -1,833 +0,0 @@
-/*
- * A generic kernel FIFO implementation
- *
- * Copyright (C) 2013 Stefani Seibold <stefani@seibold.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef _LINUX_KFIFO_H
-#define _LINUX_KFIFO_H
-
-/*
- * How to porting drivers to the new generic FIFO API:
- *
- * - Modify the declaration of the "struct kfifo *" object into a
- *   in-place "struct kfifo" object
- * - Init the in-place object with kfifo_alloc() or kfifo_init()
- *   Note: The address of the in-place "struct kfifo" object must be
- *   passed as the first argument to this functions
- * - Replace the use of __kfifo_put into kfifo_in and __kfifo_get
- *   into kfifo_out
- * - Replace the use of kfifo_put into kfifo_in_spinlocked and kfifo_get
- *   into kfifo_out_spinlocked
- *   Note: the spinlock pointer formerly passed to kfifo_init/kfifo_alloc
- *   must be passed now to the kfifo_in_spinlocked and kfifo_out_spinlocked
- *   as the last parameter
- * - The formerly __kfifo_* functions are renamed into kfifo_*
- */
-
-/*
- * Note about locking : There is no locking required until only * one reader
- * and one writer is using the fifo and no kfifo_reset() will be * called
- *  kfifo_reset_out() can be safely used, until it will be only called
- * in the reader thread.
- *  For multiple writer and one reader there is only a need to lock the writer.
- * And vice versa for only one writer and multiple reader there is only a need
- * to lock the reader.
- */
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/stddef.h>
-#include <linux/scatterlist.h>
-
-struct __kfifo {
-	unsigned int	in;
-	unsigned int	out;
-	unsigned int	mask;
-	unsigned int	esize;
-	void		*data;
-};
-
-#define __STRUCT_KFIFO_COMMON(datatype, recsize, ptrtype) \
-	union { \
-		struct __kfifo	kfifo; \
-		datatype	*type; \
-		const datatype	*const_type; \
-		char		(*rectype)[recsize]; \
-		ptrtype		*ptr; \
-		ptrtype const	*ptr_const; \
-	}
-
-#define __STRUCT_KFIFO(type, size, recsize, ptrtype) \
-{ \
-	__STRUCT_KFIFO_COMMON(type, recsize, ptrtype); \
-	type		buf[((size < 2) || (size & (size - 1))) ? -1 : size]; \
-}
-
-#define STRUCT_KFIFO(type, size) \
-	struct __STRUCT_KFIFO(type, size, 0, type)
-
-#define __STRUCT_KFIFO_PTR(type, recsize, ptrtype) \
-{ \
-	__STRUCT_KFIFO_COMMON(type, recsize, ptrtype); \
-	type		buf[0]; \
-}
-
-#define STRUCT_KFIFO_PTR(type) \
-	struct __STRUCT_KFIFO_PTR(type, 0, type)
-
-/*
- * define compatibility "struct kfifo" for dynamic allocated fifos
- */
-struct kfifo __STRUCT_KFIFO_PTR(unsigned char, 0, void);
-
-#define STRUCT_KFIFO_REC_1(size) \
-	struct __STRUCT_KFIFO(unsigned char, size, 1, void)
-
-#define STRUCT_KFIFO_REC_2(size) \
-	struct __STRUCT_KFIFO(unsigned char, size, 2, void)
-
-/*
- * define kfifo_rec types
- */
-struct kfifo_rec_ptr_1 __STRUCT_KFIFO_PTR(unsigned char, 1, void);
-struct kfifo_rec_ptr_2 __STRUCT_KFIFO_PTR(unsigned char, 2, void);
-
-/*
- * helper macro to distinguish between real in place fifo where the fifo
- * array is a part of the structure and the fifo type where the array is
- * outside of the fifo structure.
- */
-#define	__is_kfifo_ptr(fifo)	(sizeof(*fifo) == sizeof(struct __kfifo))
-
-/**
- * DECLARE_KFIFO_PTR - macro to declare a fifo pointer object
- * @fifo: name of the declared fifo
- * @type: type of the fifo elements
- */
-#define DECLARE_KFIFO_PTR(fifo, type)	STRUCT_KFIFO_PTR(type) fifo
-
-/**
- * DECLARE_KFIFO - macro to declare a fifo object
- * @fifo: name of the declared fifo
- * @type: type of the fifo elements
- * @size: the number of elements in the fifo, this must be a power of 2
- */
-#define DECLARE_KFIFO(fifo, type, size)	STRUCT_KFIFO(type, size) fifo
-
-/**
- * INIT_KFIFO - Initialize a fifo declared by DECLARE_KFIFO
- * @fifo: name of the declared fifo datatype
- */
-#define INIT_KFIFO(fifo) \
-(void)({ \
-	typeof(&(fifo)) __tmp = &(fifo); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	__kfifo->in = 0; \
-	__kfifo->out = 0; \
-	__kfifo->mask = __is_kfifo_ptr(__tmp) ? 0 : ARRAY_SIZE(__tmp->buf) - 1;\
-	__kfifo->esize = sizeof(*__tmp->buf); \
-	__kfifo->data = __is_kfifo_ptr(__tmp) ?  NULL : __tmp->buf; \
-})
-
-/**
- * DEFINE_KFIFO - macro to define and initialize a fifo
- * @fifo: name of the declared fifo datatype
- * @type: type of the fifo elements
- * @size: the number of elements in the fifo, this must be a power of 2
- *
- * Note: the macro can be used for global and local fifo data type variables.
- */
-#define DEFINE_KFIFO(fifo, type, size) \
-	DECLARE_KFIFO(fifo, type, size) = \
-	(typeof(fifo)) { \
-		{ \
-			{ \
-			.in	= 0, \
-			.out	= 0, \
-			.mask	= __is_kfifo_ptr(&(fifo)) ? \
-				  0 : \
-				  ARRAY_SIZE((fifo).buf) - 1, \
-			.esize	= sizeof(*(fifo).buf), \
-			.data	= __is_kfifo_ptr(&(fifo)) ? \
-				NULL : \
-				(fifo).buf, \
-			} \
-		} \
-	}
-
-
-static inline unsigned int __must_check
-__kfifo_uint_must_check_helper(unsigned int val)
-{
-	return val;
-}
-
-static inline int __must_check
-__kfifo_int_must_check_helper(int val)
-{
-	return val;
-}
-
-/**
- * kfifo_initialized - Check if the fifo is initialized
- * @fifo: address of the fifo to check
- *
- * Return %true if fifo is initialized, otherwise %false.
- * Assumes the fifo was 0 before.
- */
-#define kfifo_initialized(fifo) ((fifo)->kfifo.mask)
-
-/**
- * kfifo_esize - returns the size of the element managed by the fifo
- * @fifo: address of the fifo to be used
- */
-#define kfifo_esize(fifo)	((fifo)->kfifo.esize)
-
-/**
- * kfifo_recsize - returns the size of the record length field
- * @fifo: address of the fifo to be used
- */
-#define kfifo_recsize(fifo)	(sizeof(*(fifo)->rectype))
-
-/**
- * kfifo_size - returns the size of the fifo in elements
- * @fifo: address of the fifo to be used
- */
-#define kfifo_size(fifo)	((fifo)->kfifo.mask + 1)
-
-/**
- * kfifo_reset - removes the entire fifo content
- * @fifo: address of the fifo to be used
- *
- * Note: usage of kfifo_reset() is dangerous. It should be only called when the
- * fifo is exclusived locked or when it is secured that no other thread is
- * accessing the fifo.
- */
-#define kfifo_reset(fifo) \
-(void)({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	__tmp->kfifo.in = __tmp->kfifo.out = 0; \
-})
-
-/**
- * kfifo_reset_out - skip fifo content
- * @fifo: address of the fifo to be used
- *
- * Note: The usage of kfifo_reset_out() is safe until it will be only called
- * from the reader thread and there is only one concurrent reader. Otherwise
- * it is dangerous and must be handled in the same way as kfifo_reset().
- */
-#define kfifo_reset_out(fifo)	\
-(void)({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	__tmp->kfifo.out = __tmp->kfifo.in; \
-})
-
-/**
- * kfifo_len - returns the number of used elements in the fifo
- * @fifo: address of the fifo to be used
- */
-#define kfifo_len(fifo) \
-({ \
-	typeof((fifo) + 1) __tmpl = (fifo); \
-	__tmpl->kfifo.in - __tmpl->kfifo.out; \
-})
-
-/**
- * kfifo_is_empty - returns true if the fifo is empty
- * @fifo: address of the fifo to be used
- */
-#define	kfifo_is_empty(fifo) \
-({ \
-	typeof((fifo) + 1) __tmpq = (fifo); \
-	__tmpq->kfifo.in == __tmpq->kfifo.out; \
-})
-
-/**
- * kfifo_is_full - returns true if the fifo is full
- * @fifo: address of the fifo to be used
- */
-#define	kfifo_is_full(fifo) \
-({ \
-	typeof((fifo) + 1) __tmpq = (fifo); \
-	kfifo_len(__tmpq) > __tmpq->kfifo.mask; \
-})
-
-/**
- * kfifo_avail - returns the number of unused elements in the fifo
- * @fifo: address of the fifo to be used
- */
-#define	kfifo_avail(fifo) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmpq = (fifo); \
-	const size_t __recsize = sizeof(*__tmpq->rectype); \
-	unsigned int __avail = kfifo_size(__tmpq) - kfifo_len(__tmpq); \
-	(__recsize) ? ((__avail <= __recsize) ? 0 : \
-	__kfifo_max_r(__avail - __recsize, __recsize)) : \
-	__avail; \
-}) \
-)
-
-/**
- * kfifo_skip - skip output data
- * @fifo: address of the fifo to be used
- */
-#define	kfifo_skip(fifo) \
-(void)({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__kfifo_skip_r(__kfifo, __recsize); \
-	else \
-		__kfifo->out++; \
-})
-
-/**
- * kfifo_peek_len - gets the size of the next fifo record
- * @fifo: address of the fifo to be used
- *
- * This function returns the size of the next fifo record in number of bytes.
- */
-#define kfifo_peek_len(fifo) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(!__recsize) ? kfifo_len(__tmp) * sizeof(*__tmp->type) : \
-	__kfifo_len_r(__kfifo, __recsize); \
-}) \
-)
-
-/**
- * kfifo_alloc - dynamically allocates a new fifo buffer
- * @fifo: pointer to the fifo
- * @size: the number of elements in the fifo, this must be a power of 2
- * @gfp_mask: get_free_pages mask, passed to kmalloc()
- *
- * This macro dynamically allocates a new fifo buffer.
- *
- * The numer of elements will be rounded-up to a power of 2.
- * The fifo will be release with kfifo_free().
- * Return 0 if no error, otherwise an error code.
- */
-#define kfifo_alloc(fifo, size, gfp_mask) \
-__kfifo_int_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	__is_kfifo_ptr(__tmp) ? \
-	__kfifo_alloc(__kfifo, size, sizeof(*__tmp->type), gfp_mask) : \
-	-EINVAL; \
-}) \
-)
-
-/**
- * kfifo_free - frees the fifo
- * @fifo: the fifo to be freed
- */
-#define kfifo_free(fifo) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__is_kfifo_ptr(__tmp)) \
-		__kfifo_free(__kfifo); \
-})
-
-/**
- * kfifo_init - initialize a fifo using a preallocated buffer
- * @fifo: the fifo to assign the buffer
- * @buffer: the preallocated buffer to be used
- * @size: the size of the internal buffer, this have to be a power of 2
- *
- * This macro initialize a fifo using a preallocated buffer.
- *
- * The numer of elements will be rounded-up to a power of 2.
- * Return 0 if no error, otherwise an error code.
- */
-#define kfifo_init(fifo, buffer, size) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	__is_kfifo_ptr(__tmp) ? \
-	__kfifo_init(__kfifo, buffer, size, sizeof(*__tmp->type)) : \
-	-EINVAL; \
-})
-
-/**
- * kfifo_put - put data into the fifo
- * @fifo: address of the fifo to be used
- * @val: the data to be added
- *
- * This macro copies the given value into the fifo.
- * It returns 0 if the fifo was full. Otherwise it returns the number
- * processed elements.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_put(fifo, val) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(*__tmp->const_type) __val = (val); \
-	unsigned int __ret; \
-	size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__ret = __kfifo_in_r(__kfifo, &__val, sizeof(__val), \
-			__recsize); \
-	else { \
-		__ret = !kfifo_is_full(__tmp); \
-		if (__ret) { \
-			(__is_kfifo_ptr(__tmp) ? \
-			((typeof(__tmp->type))__kfifo->data) : \
-			(__tmp->buf) \
-			)[__kfifo->in & __tmp->kfifo.mask] = \
-				*(typeof(__tmp->type))&__val; \
-			smp_wmb(); \
-			__kfifo->in++; \
-		} \
-	} \
-	__ret; \
-})
-
-/**
- * kfifo_get - get data from the fifo
- * @fifo: address of the fifo to be used
- * @val: address where to store the data
- *
- * This macro reads the data from the fifo.
- * It returns 0 if the fifo was empty. Otherwise it returns the number
- * processed elements.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_get(fifo, val) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(__tmp->ptr) __val = (val); \
-	unsigned int __ret; \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__ret = __kfifo_out_r(__kfifo, __val, sizeof(*__val), \
-			__recsize); \
-	else { \
-		__ret = !kfifo_is_empty(__tmp); \
-		if (__ret) { \
-			*(typeof(__tmp->type))__val = \
-				(__is_kfifo_ptr(__tmp) ? \
-				((typeof(__tmp->type))__kfifo->data) : \
-				(__tmp->buf) \
-				)[__kfifo->out & __tmp->kfifo.mask]; \
-			smp_wmb(); \
-			__kfifo->out++; \
-		} \
-	} \
-	__ret; \
-}) \
-)
-
-/**
- * kfifo_peek - get data from the fifo without removing
- * @fifo: address of the fifo to be used
- * @val: address where to store the data
- *
- * This reads the data from the fifo without removing it from the fifo.
- * It returns 0 if the fifo was empty. Otherwise it returns the number
- * processed elements.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_peek(fifo, val) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(__tmp->ptr) __val = (val); \
-	unsigned int __ret; \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__ret = __kfifo_out_peek_r(__kfifo, __val, sizeof(*__val), \
-			__recsize); \
-	else { \
-		__ret = !kfifo_is_empty(__tmp); \
-		if (__ret) { \
-			*(typeof(__tmp->type))__val = \
-				(__is_kfifo_ptr(__tmp) ? \
-				((typeof(__tmp->type))__kfifo->data) : \
-				(__tmp->buf) \
-				)[__kfifo->out & __tmp->kfifo.mask]; \
-			smp_wmb(); \
-		} \
-	} \
-	__ret; \
-}) \
-)
-
-/**
- * kfifo_in - put data into the fifo
- * @fifo: address of the fifo to be used
- * @buf: the data to be added
- * @n: number of elements to be added
- *
- * This macro copies the given buffer into the fifo and returns the
- * number of copied elements.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_in(fifo, buf, n) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(__tmp->ptr_const) __buf = (buf); \
-	unsigned long __n = (n); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ?\
-	__kfifo_in_r(__kfifo, __buf, __n, __recsize) : \
-	__kfifo_in(__kfifo, __buf, __n); \
-})
-
-/**
- * kfifo_in_spinlocked - put data into the fifo using a spinlock for locking
- * @fifo: address of the fifo to be used
- * @buf: the data to be added
- * @n: number of elements to be added
- * @lock: pointer to the spinlock to use for locking
- *
- * This macro copies the given values buffer into the fifo and returns the
- * number of copied elements.
- */
-#define	kfifo_in_spinlocked(fifo, buf, n, lock) \
-({ \
-	unsigned long __flags; \
-	unsigned int __ret; \
-	spin_lock_irqsave(lock, __flags); \
-	__ret = kfifo_in(fifo, buf, n); \
-	spin_unlock_irqrestore(lock, __flags); \
-	__ret; \
-})
-
-/* alias for kfifo_in_spinlocked, will be removed in a future release */
-#define kfifo_in_locked(fifo, buf, n, lock) \
-		kfifo_in_spinlocked(fifo, buf, n, lock)
-
-/**
- * kfifo_out - get data from the fifo
- * @fifo: address of the fifo to be used
- * @buf: pointer to the storage buffer
- * @n: max. number of elements to get
- *
- * This macro get some data from the fifo and return the numbers of elements
- * copied.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_out(fifo, buf, n) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(__tmp->ptr) __buf = (buf); \
-	unsigned long __n = (n); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ?\
-	__kfifo_out_r(__kfifo, __buf, __n, __recsize) : \
-	__kfifo_out(__kfifo, __buf, __n); \
-}) \
-)
-
-/**
- * kfifo_out_spinlocked - get data from the fifo using a spinlock for locking
- * @fifo: address of the fifo to be used
- * @buf: pointer to the storage buffer
- * @n: max. number of elements to get
- * @lock: pointer to the spinlock to use for locking
- *
- * This macro get the data from the fifo and return the numbers of elements
- * copied.
- */
-#define	kfifo_out_spinlocked(fifo, buf, n, lock) \
-__kfifo_uint_must_check_helper( \
-({ \
-	unsigned long __flags; \
-	unsigned int __ret; \
-	spin_lock_irqsave(lock, __flags); \
-	__ret = kfifo_out(fifo, buf, n); \
-	spin_unlock_irqrestore(lock, __flags); \
-	__ret; \
-}) \
-)
-
-/* alias for kfifo_out_spinlocked, will be removed in a future release */
-#define kfifo_out_locked(fifo, buf, n, lock) \
-		kfifo_out_spinlocked(fifo, buf, n, lock)
-
-/**
- * kfifo_from_user - puts some data from user space into the fifo
- * @fifo: address of the fifo to be used
- * @from: pointer to the data to be added
- * @len: the length of the data to be added
- * @copied: pointer to output variable to store the number of copied bytes
- *
- * This macro copies at most @len bytes from the @from into the
- * fifo, depending of the available space and returns -EFAULT/0.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_from_user(fifo, from, len, copied) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	const void __user *__from = (from); \
-	unsigned int __len = (len); \
-	unsigned int *__copied = (copied); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ? \
-	__kfifo_from_user_r(__kfifo, __from, __len,  __copied, __recsize) : \
-	__kfifo_from_user(__kfifo, __from, __len, __copied); \
-}) \
-)
-
-/**
- * kfifo_to_user - copies data from the fifo into user space
- * @fifo: address of the fifo to be used
- * @to: where the data must be copied
- * @len: the size of the destination buffer
- * @copied: pointer to output variable to store the number of copied bytes
- *
- * This macro copies at most @len bytes from the fifo into the
- * @to buffer and returns -EFAULT/0.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_to_user(fifo, to, len, copied) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	void __user *__to = (to); \
-	unsigned int __len = (len); \
-	unsigned int *__copied = (copied); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ? \
-	__kfifo_to_user_r(__kfifo, __to, __len, __copied, __recsize) : \
-	__kfifo_to_user(__kfifo, __to, __len, __copied); \
-}) \
-)
-
-/**
- * kfifo_dma_in_prepare - setup a scatterlist for DMA input
- * @fifo: address of the fifo to be used
- * @sgl: pointer to the scatterlist array
- * @nents: number of entries in the scatterlist array
- * @len: number of elements to transfer
- *
- * This macro fills a scatterlist for DMA input.
- * It returns the number entries in the scatterlist array.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macros.
- */
-#define	kfifo_dma_in_prepare(fifo, sgl, nents, len) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	struct scatterlist *__sgl = (sgl); \
-	int __nents = (nents); \
-	unsigned int __len = (len); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ? \
-	__kfifo_dma_in_prepare_r(__kfifo, __sgl, __nents, __len, __recsize) : \
-	__kfifo_dma_in_prepare(__kfifo, __sgl, __nents, __len); \
-})
-
-/**
- * kfifo_dma_in_finish - finish a DMA IN operation
- * @fifo: address of the fifo to be used
- * @len: number of bytes to received
- *
- * This macro finish a DMA IN operation. The in counter will be updated by
- * the len parameter. No error checking will be done.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macros.
- */
-#define kfifo_dma_in_finish(fifo, len) \
-(void)({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	unsigned int __len = (len); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__kfifo_dma_in_finish_r(__kfifo, __len, __recsize); \
-	else \
-		__kfifo->in += __len / sizeof(*__tmp->type); \
-})
-
-/**
- * kfifo_dma_out_prepare - setup a scatterlist for DMA output
- * @fifo: address of the fifo to be used
- * @sgl: pointer to the scatterlist array
- * @nents: number of entries in the scatterlist array
- * @len: number of elements to transfer
- *
- * This macro fills a scatterlist for DMA output which at most @len bytes
- * to transfer.
- * It returns the number entries in the scatterlist array.
- * A zero means there is no space available and the scatterlist is not filled.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macros.
- */
-#define	kfifo_dma_out_prepare(fifo, sgl, nents, len) \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo);  \
-	struct scatterlist *__sgl = (sgl); \
-	int __nents = (nents); \
-	unsigned int __len = (len); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ? \
-	__kfifo_dma_out_prepare_r(__kfifo, __sgl, __nents, __len, __recsize) : \
-	__kfifo_dma_out_prepare(__kfifo, __sgl, __nents, __len); \
-})
-
-/**
- * kfifo_dma_out_finish - finish a DMA OUT operation
- * @fifo: address of the fifo to be used
- * @len: number of bytes transferred
- *
- * This macro finish a DMA OUT operation. The out counter will be updated by
- * the len parameter. No error checking will be done.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macros.
- */
-#define kfifo_dma_out_finish(fifo, len) \
-(void)({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	unsigned int __len = (len); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (__recsize) \
-		__kfifo_dma_out_finish_r(__kfifo, __recsize); \
-	else \
-		__kfifo->out += __len / sizeof(*__tmp->type); \
-})
-
-/**
- * kfifo_out_peek - gets some data from the fifo
- * @fifo: address of the fifo to be used
- * @buf: pointer to the storage buffer
- * @n: max. number of elements to get
- *
- * This macro get the data from the fifo and return the numbers of elements
- * copied. The data is not removed from the fifo.
- *
- * Note that with only one concurrent reader and one concurrent
- * writer, you don't need extra locking to use these macro.
- */
-#define	kfifo_out_peek(fifo, buf, n) \
-__kfifo_uint_must_check_helper( \
-({ \
-	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof(__tmp->ptr) __buf = (buf); \
-	unsigned long __n = (n); \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
-	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	(__recsize) ? \
-	__kfifo_out_peek_r(__kfifo, __buf, __n, __recsize) : \
-	__kfifo_out_peek(__kfifo, __buf, __n); \
-}) \
-)
-
-extern int __kfifo_alloc(struct __kfifo *fifo, unsigned int size,
-	size_t esize, gfp_t gfp_mask);
-
-extern void __kfifo_free(struct __kfifo *fifo);
-
-extern int __kfifo_init(struct __kfifo *fifo, void *buffer,
-	unsigned int size, size_t esize);
-
-extern unsigned int __kfifo_in(struct __kfifo *fifo,
-	const void *buf, unsigned int len);
-
-extern unsigned int __kfifo_out(struct __kfifo *fifo,
-	void *buf, unsigned int len);
-
-extern int __kfifo_from_user(struct __kfifo *fifo,
-	const void __user *from, unsigned long len, unsigned int *copied);
-
-extern int __kfifo_to_user(struct __kfifo *fifo,
-	void __user *to, unsigned long len, unsigned int *copied);
-
-extern unsigned int __kfifo_dma_in_prepare(struct __kfifo *fifo,
-	struct scatterlist *sgl, int nents, unsigned int len);
-
-extern unsigned int __kfifo_dma_out_prepare(struct __kfifo *fifo,
-	struct scatterlist *sgl, int nents, unsigned int len);
-
-extern unsigned int __kfifo_out_peek(struct __kfifo *fifo,
-	void *buf, unsigned int len);
-
-extern unsigned int __kfifo_in_r(struct __kfifo *fifo,
-	const void *buf, unsigned int len, size_t recsize);
-
-extern unsigned int __kfifo_out_r(struct __kfifo *fifo,
-	void *buf, unsigned int len, size_t recsize);
-
-extern int __kfifo_from_user_r(struct __kfifo *fifo,
-	const void __user *from, unsigned long len, unsigned int *copied,
-	size_t recsize);
-
-extern int __kfifo_to_user_r(struct __kfifo *fifo, void __user *to,
-	unsigned long len, unsigned int *copied, size_t recsize);
-
-extern unsigned int __kfifo_dma_in_prepare_r(struct __kfifo *fifo,
-	struct scatterlist *sgl, int nents, unsigned int len, size_t recsize);
-
-extern void __kfifo_dma_in_finish_r(struct __kfifo *fifo,
-	unsigned int len, size_t recsize);
-
-extern unsigned int __kfifo_dma_out_prepare_r(struct __kfifo *fifo,
-	struct scatterlist *sgl, int nents, unsigned int len, size_t recsize);
-
-extern void __kfifo_dma_out_finish_r(struct __kfifo *fifo, size_t recsize);
-
-extern unsigned int __kfifo_len_r(struct __kfifo *fifo, size_t recsize);
-
-extern void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize);
-
-extern unsigned int __kfifo_out_peek_r(struct __kfifo *fifo,
-	void *buf, unsigned int len, size_t recsize);
-
-extern unsigned int __kfifo_max_r(unsigned int len, size_t recsize);
-
-#endif

drivers/include/linux/kthread.h

@@ -1,57 +0,0 @@
-#ifndef _LINUX_KTHREAD_H
-#define _LINUX_KTHREAD_H
-/*
- * Minimal kthread emulation for KolibriOS.
- *
- * The GPU scheduler (drivers/video/drm/amdgpu/scheduler) is the only user in
- * the DRM tree.  KolibriOS kernel threads are created with CreateKernelThread(),
- * which takes no argument, so kthread_run() stashes the payload in a small
- * pid-indexed table and the trampoline picks it up.  Park/stop are cooperative
- * flags polled by the thread body, matching how the scheduler uses them.
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/err.h>
-#include <linux/rwsem.h>
-
-/*
- * Placeholder address space.  Drivers reach it as current->mm on their userptr
- * paths only, which KolibriOS never enters (no ioctl surface for user code).
- */
-struct mm_struct {
-	struct rw_semaphore mmap_sem;
-};
-
-struct task_struct {
-	int	(*threadfn)(void *data);
-	void	 *data;
-	int	  pid;
-	volatile int should_stop;
-	volatile int should_park;
-	volatile int parked;
-	char	  comm[16];
-	struct mm_struct *mm;
-};
-
-struct task_struct *kthread_create_kos(int (*threadfn)(void *data),
-				       void *data, const char *name);
-int  kthread_stop(struct task_struct *k);
-bool kthread_should_stop(void);
-bool kthread_should_park(void);
-void kthread_parkme(void);
-int  kthread_park(struct task_struct *k);
-void kthread_unpark(struct task_struct *k);
-struct task_struct *kthread_current(void);
-
-#define kthread_run(threadfn, data, namefmt, ...) \
-	kthread_create_kos((threadfn), (data), (namefmt))
-
-#define kthread_create(threadfn, data, namefmt, ...) \
-	kthread_create_kos((threadfn), (data), (namefmt))
-
-static inline void wake_up_process(struct task_struct *k) { }
-static inline void get_task_struct(struct task_struct *k) { }
-static inline void put_task_struct(struct task_struct *k) { }
-
-#endif /* _LINUX_KTHREAD_H */

drivers/include/linux/mfd/core.h

@@ -1,24 +0,0 @@
-#ifndef _LINUX_MFD_CORE_H
-#define _LINUX_MFD_CORE_H
-/*
- * No multi-function-device bus on KolibriOS.  amdgpu_acp.h embeds an
- * mfd_cell pointer in struct amdgpu_acp; the ACP block itself is not built.
- */
-#include <linux/types.h>
-struct device;
-struct resource;
-
-struct mfd_cell {
-	const char	*name;
-	int		 id;
-	void		*platform_data;
-	size_t		 pdata_size;
-	int		 num_resources;
-	const struct resource *resources;
-};
-
-static inline int mfd_add_hotplug_devices(struct device *parent,
-					  const struct mfd_cell *cells, int n)
-	{ return -ENODEV; }
-static inline void mfd_remove_devices(struct device *parent) { }
-#endif

drivers/include/linux/mm.h

@@ -8,12 +8,6 @@
 #define nth_page(page,n) ((void*)(((page_to_phys(page)>>12)+(n))<<12))
 
 #define __page_to_pfn(page) (page_to_phys(page)>>12)
-/*
- * A struct page * here is just the physical address (see page_to_phys() in
- * <linux/kernel.h>), so the reverse direction is the same shift back.
- */
-#define __pfn_to_page(pfn)  ((struct page *)((dma_addr_t)(pfn) << 12))
-#define pfn_to_page(pfn)    __pfn_to_page(pfn)
 
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)

drivers/include/linux/module.h

@@ -26,14 +26,4 @@
 
 struct module {};
 
-/*
- * Nothing is a module here - everything is linked into the one image - so the
- * reference count can never drop and a request for another module can never be
- * satisfied.  Implemented in the driver's kos_* glue.
- */
-extern int request_module(const char *name, ...);
-extern int try_module_get(struct module *module);
-extern void module_put(struct module *module);
-
-
 #endif /* _LINUX_MODULE_H */

drivers/include/linux/mutex.h

@@ -77,15 +77,6 @@ void __attribute__ ((fastcall)) __attribute__ ((dllimport))
 void __attribute__ ((fastcall)) __attribute__ ((dllimport))
      mutex_unlock(struct mutex*)__asm__("MutexUnlock");
 
-/*
- * mutex_init() is the DDK's MutexInit(); these two are the spellings upstream
- * code reaches for when it wants a lockdep class, which this port does not
- * have.  Both end up in the same place.
- */
-extern void __mutex_init(struct mutex *lock, const char *name,
-			 struct lock_class_key *key);
-extern void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
-
 static inline int mutex_lock_interruptible(struct mutex *lock)
 {
     mutex_lock(lock);

drivers/include/linux/of_device.h

@@ -1,10 +0,0 @@
-#ifndef _LINUX_OF_DEVICE_H
-#define _LINUX_OF_DEVICE_H
-/* No device tree on x86; pulled in unconditionally by nvif/os.h. */
-struct device;
-struct of_device_id;
-
-static inline const struct of_device_id *
-of_match_device(const struct of_device_id *m, const struct device *dev)
-{ return NULL; }
-#endif

drivers/include/linux/pagemap.h

@@ -1,8 +0,0 @@
-#ifndef _LINUX_PAGEMAP_H
-#define _LINUX_PAGEMAP_H
-/* Only the shift/size helpers are used by the TTM/GEM paths on this port. */
-#include <linux/mm.h>
-#define PAGE_CACHE_SHIFT	PAGE_SHIFT
-#define PAGE_CACHE_SIZE		PAGE_SIZE
-#define PAGE_CACHE_MASK		PAGE_MASK
-#endif

drivers/include/linux/pci.h

@@ -275,13 +275,6 @@ struct pci_dev {
 	struct pci_bus	*bus;		/* bus this device is on */
 	struct pci_bus	*subordinate;	/* bus this device bridges to */
 
-	/*
-	 * Always NULL on this port: there is no driver model to bind through.
-	 * nouveau_drm.c reads it to decide whether the HDMI audio function is
-	 * claimed before powering the GPU down, and takes the safe branch.
-	 */
-	struct pci_driver *driver;
-
 	void		*sysdata;	/* hook for sys-specific extension */
 //    struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */
 	struct pci_slot	*slot;		/* Physical slot this device is in */

drivers/include/linux/platform_device.h

@@ -1,7 +0,0 @@
-#ifndef _LINUX_PLATFORM_DEVICE_H
-#define _LINUX_PLATFORM_DEVICE_H
-/* No platform bus; amdgpu_drv.h only needs the type to exist. */
-#include <linux/device.h>
-struct platform_device { struct device dev; const char *name; int id; };
-struct platform_driver;
-#endif

drivers/include/linux/power_supply.h

@@ -1,12 +0,0 @@
-#ifndef _LINUX_POWER_SUPPLY_H
-#define _LINUX_POWER_SUPPLY_H
-/*
- * No battery subsystem on KolibriOS.  power_supply_is_system_supplied() is
- * already provided by <syscall.h>; only the enum labels are missing.
- */
-enum {
-	POWER_SUPPLY_TYPE_UNKNOWN = 0,
-	POWER_SUPPLY_TYPE_BATTERY,
-	POWER_SUPPLY_TYPE_MAINS,
-};
-#endif

drivers/include/linux/reboot.h

@@ -1,22 +0,0 @@
-#ifndef _LINUX_REBOOT_H
-#define _LINUX_REBOOT_H
-/*
- * No reboot notifier chain on this port.  nvif/os.h includes this header for
- * every nvkm translation unit; nothing in the built set registers a notifier.
- */
-#include <linux/notifier.h>
-
-#define SYS_RESTART	0x0001
-#define SYS_HALT	0x0002
-#define SYS_POWER_OFF	0x0003
-
-static inline int register_reboot_notifier(struct notifier_block *nb) { return 0; }
-static inline int unregister_reboot_notifier(struct notifier_block *nb) { return 0; }
-
-/*
- * nvkm/subdev/therm/temp.c asks for this when the GPU passes its shutdown
- * threshold.  There is no orderly shutdown to request on KolibriOS; the
- * driver's implementation logs and returns.
- */
-extern int orderly_poweroff(bool force);
-#endif

drivers/include/linux/regulator/consumer.h

@@ -1,18 +0,0 @@
-#ifndef _LINUX_REGULATOR_CONSUMER_H
-#define _LINUX_REGULATOR_CONSUMER_H
-/* Tegra-only; see linux/clk.h for why this exists at all. */
-#include <linux/errno.h>
-#include <linux/err.h>
-
-struct regulator;
-struct device;
-
-static inline struct regulator *regulator_get(struct device *dev, const char *id)
-{ return ERR_PTR(-ENOENT); }
-static inline void regulator_put(struct regulator *r) { }
-static inline int regulator_enable(struct regulator *r) { return -ENOSYS; }
-static inline int regulator_disable(struct regulator *r) { return -ENOSYS; }
-static inline int regulator_get_voltage(struct regulator *r) { return -ENODEV; }
-static inline int regulator_set_voltage(struct regulator *r, int min_uV, int max_uV)
-{ return -ENODEV; }
-#endif

drivers/include/linux/reset.h

@@ -1,15 +0,0 @@
-#ifndef _LINUX_RESET_H
-#define _LINUX_RESET_H
-/* Tegra-only; see linux/clk.h for why this exists at all. */
-#include <linux/errno.h>
-#include <linux/err.h>
-
-struct reset_control;
-struct device;
-
-static inline struct reset_control *reset_control_get(struct device *dev, const char *id)
-{ return ERR_PTR(-ENOENT); }
-static inline void reset_control_put(struct reset_control *rstc) { }
-static inline int reset_control_assert(struct reset_control *rstc) { return -ENOSYS; }
-static inline int reset_control_deassert(struct reset_control *rstc) { return -ENOSYS; }
-#endif

drivers/include/linux/sched.h

@@ -49,14 +49,4 @@
 #define schedule_timeout(x)  delay(x)
 #define MAX_SCHEDULE_TIMEOUT    LONG_MAX
 
-/*
- * No processes and no signals behind a driver thread: signal_pending() is
- * always false, so interruptible waits only ever end on their timeout, and
- * every task carries the singleton name set in kos_stubs.c.
- */
-struct task_struct;
-extern int signal_pending(struct task_struct *p);
-extern void __set_current_state(int state);
-extern char *get_task_comm(char *buf, struct task_struct *tsk);
-
 #endif

drivers/include/linux/screen_info.h

@@ -1,19 +0,0 @@
-#ifndef _LINUX_SCREEN_INFO_H
-#define _LINUX_SCREEN_INFO_H
-/*
- * nouveau_fbcon.c only uses this to decide whether it owns the boot console.
- * KolibriOS has no boot console to hand over, so the record stays empty.
- */
-#include <linux/types.h>
-
-struct screen_info {
-	__u8  orig_video_isVGA;
-	__u16 lfb_width;
-	__u16 lfb_height;
-	__u16 lfb_depth;
-	__u32 lfb_base;
-	__u32 lfb_size;
-};
-
-extern struct screen_info screen_info;
-#endif

drivers/include/linux/swiotlb.h

@@ -1,5 +0,0 @@
-#ifndef _LINUX_SWIOTLB_H
-#define _LINUX_SWIOTLB_H
-/* No bounce buffers on this port; amdgpu_ttm.c only queries swiotlb_nr_tbl(). */
-static inline unsigned long swiotlb_nr_tbl(void) { return 0; }
-#endif

drivers/include/linux/tracepoint.h

@@ -1,35 +0,0 @@
-#ifndef _LINUX_TRACEPOINT_H
-#define _LINUX_TRACEPOINT_H
-/* Tracepoints compile away: amdgpu_trace.h expands to empty trace_*() calls. */
-/*
- * Each event still has to yield a callable trace_<name>(), because the driver
- * code calls it unconditionally - upstream generates one per event.  Here they
- * expand to empty inlines, so the calls disappear at -O2 but the argument
- * expressions are still type-checked.
- */
-#define TP_PROTO(args...)	args
-#define TP_ARGS(args...)	args
-#define TP_STRUCT__entry(args...)
-#define TP_fast_assign(args...)
-#define TP_printk(fmt, args...)
-#define TP_CONDITION(args...)
-
-#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)
-
-#define DEFINE_EVENT(tmpl, name, proto, args)				\
-	static inline void trace_##name(proto) { }			\
-	static inline bool trace_##name##_enabled(void) { return false; }
-
-#define TRACE_EVENT(name, proto, args, tstruct, assign, print)		\
-	static inline void trace_##name(proto) { }			\
-	static inline bool trace_##name##_enabled(void) { return false; }
-
-#define TRACE_EVENT_CONDITION(name, proto, args, cond, tstruct, assign, print) \
-	static inline void trace_##name(proto) { }			\
-	static inline bool trace_##name##_enabled(void) { return false; }
-
-#define DECLARE_TRACE(name, proto, args)				\
-	static inline void trace_##name(proto) { }
-#define EXPORT_TRACEPOINT_SYMBOL_GPL(name)
-#define EXPORT_TRACEPOINT_SYMBOL(name)
-#endif

drivers/include/linux/tty.h

@@ -1,5 +0,0 @@
-#ifndef _LINUX_TTY_H
-#define _LINUX_TTY_H
-/* No tty layer; nouveau_fbcon.c includes it for console_lock() neighbours. */
-#include <linux/console.h>
-#endif

drivers/include/linux/vga_switcheroo.h

@@ -188,7 +188,6 @@ static inline enum vga_switcheroo_handler_flags_t vga_switcheroo_handler_flags(v
 static inline int vga_switcheroo_lock_ddc(struct pci_dev *pdev) { return -ENODEV; }
 static inline int vga_switcheroo_unlock_ddc(struct pci_dev *pdev) { return -ENODEV; }
 static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }
-static inline bool vga_switcheroo_client_probe_defer(struct pci_dev *pdev) { return false; }
 static inline enum vga_switcheroo_state vga_switcheroo_get_client_state(struct pci_dev *dev) { return VGA_SWITCHEROO_ON; }
 
 static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}

drivers/include/linux/vmalloc.h

@@ -30,12 +30,6 @@ extern void *vmalloc(unsigned long size);
 extern void *vzalloc(unsigned long size);
 extern void vfree(const void *addr);
 
-/*
- * kmalloc() and vmalloc() come from the same allocator on this port, so one
- * free serves both - which is what kvfree() means upstream too.
- */
-extern void kvfree(const void *addr);
-
 extern void *vmap(struct page **pages, unsigned int count,
 			unsigned long flags, pgprot_t prot);
 extern void vunmap(const void *addr);

drivers/include/linux/wait.h

@@ -326,30 +326,6 @@ int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *
 
 #define DEFINE_WAIT(name) DEFINE_WAIT_FUNC(name, autoremove_wake_function)
 
-/*
- * The "_locked" variants are entered with wq.lock already held and must give
- * it up while waiting.  That rules out the event-based path above, which takes
- * the lock itself, so these poll instead - the same trade the rest of this
- * header already makes.
- *
- * Because nothing ever blocks on an event here, wake_up_all_locked() has
- * nothing to signal: the waiter re-tests the condition on its next tick.
- */
-#define wait_event_interruptible_locked(wq, condition)			\
-({									\
-	while (!(condition)) {						\
-		spin_unlock(&(wq).lock);				\
-		delay(1);						\
-		spin_lock(&(wq).lock);					\
-	}								\
-	0;								\
-})
-
-#define wait_event_locked(wq, condition) \
-	wait_event_interruptible_locked(wq, condition)
-
-#define wake_up_locked(q)	do { } while (0)
-#define wake_up_all_locked(q)	do { } while (0)
 
 #endif
 

drivers/include/linux/workqueue.h

@@ -268,9 +268,6 @@ static inline bool mod_delayed_work(struct workqueue_struct *wq,
         (_work)->work.func = _func;             \
     } while (0)
 
-/* Defined in each driver's kos_kernel.c. */
-extern bool flush_work(struct work_struct *work);
-
 static inline bool schedule_work(struct work_struct *work)
 {
     return queue_work(system_wq, work);

drivers/include/soc/tegra/fuse.h

@@ -1,5 +0,0 @@
-#ifndef __SOC_TEGRA_FUSE_H
-#define __SOC_TEGRA_FUSE_H
-/* Tegra-only; nvif/os.h includes it unconditionally. */
-static inline int tegra_sku_info_dummy(void) { return 0; }
-#endif

drivers/include/soc/tegra/pmc.h

@@ -1,5 +0,0 @@
-#ifndef __SOC_TEGRA_PMC_H
-#define __SOC_TEGRA_PMC_H
-/* Tegra-only; nvif/os.h includes it unconditionally. */
-static inline int tegra_pmc_dummy(void) { return 0; }
-#endif

drivers/include/trace/define_trace.h

@@ -1,5 +0,0 @@
-#ifndef _TRACE_DEFINE_TRACE_H
-#define _TRACE_DEFINE_TRACE_H
-/* Tracepoints are compiled out - see linux/tracepoint.h. */
-#undef TRACE_HEADER_MULTI_READ
-#endif

drivers/include/trace/events/fence.h

@@ -1,6 +0,0 @@
-#ifndef _TRACE_EVENTS_FENCE_H
-#define _TRACE_EVENTS_FENCE_H
-/* Tracepoints are compiled out; nouveau_fence.c is the only includer. */
-struct fence;
-static inline void trace_fence_emit(struct fence *fence) { }
-#endif

drivers/include/uapi/asm-generic/ioctl.h

@@ -68,14 +68,7 @@
 	 ((nr)   << _IOC_NRSHIFT) | \
 	 ((size) << _IOC_SIZESHIFT))
 
-#ifdef __KERNEL__
-/* provoke compile error for invalid uses of size argument */
-extern unsigned int __invalid_size_argument_for_IOC;
-#define _IOC_TYPECHECK(t)						\
-	((sizeof(t) == sizeof(t[1]) &&					\
-	  sizeof(t) < (1 << _IOC_SIZEBITS)) ?				\
-	  sizeof(t) : __invalid_size_argument_for_IOC)
-#else
+#ifndef __KERNEL__
 #define _IOC_TYPECHECK(t) (sizeof(t))
 #endif
 

drivers/include/uapi/drm/amdgpu_drm.h

@@ -1,662 +0,0 @@
-/* amdgpu_drm.h -- Public header for the amdgpu driver -*- linux-c -*-
- *
- * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
- * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright 2014 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- *    Kevin E. Martin <martin@valinux.com>
- *    Gareth Hughes <gareth@valinux.com>
- *    Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#ifndef __AMDGPU_DRM_H__
-#define __AMDGPU_DRM_H__
-
-#include "drm.h"
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#define DRM_AMDGPU_GEM_CREATE		0x00
-#define DRM_AMDGPU_GEM_MMAP		0x01
-#define DRM_AMDGPU_CTX			0x02
-#define DRM_AMDGPU_BO_LIST		0x03
-#define DRM_AMDGPU_CS			0x04
-#define DRM_AMDGPU_INFO			0x05
-#define DRM_AMDGPU_GEM_METADATA		0x06
-#define DRM_AMDGPU_GEM_WAIT_IDLE	0x07
-#define DRM_AMDGPU_GEM_VA		0x08
-#define DRM_AMDGPU_WAIT_CS		0x09
-#define DRM_AMDGPU_GEM_OP		0x10
-#define DRM_AMDGPU_GEM_USERPTR		0x11
-
-#define DRM_IOCTL_AMDGPU_GEM_CREATE	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create)
-#define DRM_IOCTL_AMDGPU_GEM_MMAP	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap)
-#define DRM_IOCTL_AMDGPU_CTX		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_CTX, union drm_amdgpu_ctx)
-#define DRM_IOCTL_AMDGPU_BO_LIST	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_BO_LIST, union drm_amdgpu_bo_list)
-#define DRM_IOCTL_AMDGPU_CS		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_CS, union drm_amdgpu_cs)
-#define DRM_IOCTL_AMDGPU_INFO		DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_INFO, struct drm_amdgpu_info)
-#define DRM_IOCTL_AMDGPU_GEM_METADATA	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_METADATA, struct drm_amdgpu_gem_metadata)
-#define DRM_IOCTL_AMDGPU_GEM_WAIT_IDLE	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_WAIT_IDLE, union drm_amdgpu_gem_wait_idle)
-#define DRM_IOCTL_AMDGPU_GEM_VA		DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_VA, struct drm_amdgpu_gem_va)
-#define DRM_IOCTL_AMDGPU_WAIT_CS	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_WAIT_CS, union drm_amdgpu_wait_cs)
-#define DRM_IOCTL_AMDGPU_GEM_OP		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_OP, struct drm_amdgpu_gem_op)
-#define DRM_IOCTL_AMDGPU_GEM_USERPTR	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_USERPTR, struct drm_amdgpu_gem_userptr)
-
-#define AMDGPU_GEM_DOMAIN_CPU		0x1
-#define AMDGPU_GEM_DOMAIN_GTT		0x2
-#define AMDGPU_GEM_DOMAIN_VRAM		0x4
-#define AMDGPU_GEM_DOMAIN_GDS		0x8
-#define AMDGPU_GEM_DOMAIN_GWS		0x10
-#define AMDGPU_GEM_DOMAIN_OA		0x20
-
-/* Flag that CPU access will be required for the case of VRAM domain */
-#define AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED	(1 << 0)
-/* Flag that CPU access will not work, this VRAM domain is invisible */
-#define AMDGPU_GEM_CREATE_NO_CPU_ACCESS		(1 << 1)
-/* Flag that USWC attributes should be used for GTT */
-#define AMDGPU_GEM_CREATE_CPU_GTT_USWC		(1 << 2)
-/* Flag that the memory should be in VRAM and cleared */
-#define AMDGPU_GEM_CREATE_VRAM_CLEARED		(1 << 3)
-/* Flag that create shadow bo(GTT) while allocating vram bo */
-#define AMDGPU_GEM_CREATE_SHADOW		(1 << 4)
-
-struct drm_amdgpu_gem_create_in  {
-	/** the requested memory size */
-	__u64 bo_size;
-	/** physical start_addr alignment in bytes for some HW requirements */
-	__u64 alignment;
-	/** the requested memory domains */
-	__u64 domains;
-	/** allocation flags */
-	__u64 domain_flags;
-};
-
-struct drm_amdgpu_gem_create_out  {
-	/** returned GEM object handle */
-	__u32 handle;
-	__u32 _pad;
-};
-
-union drm_amdgpu_gem_create {
-	struct drm_amdgpu_gem_create_in		in;
-	struct drm_amdgpu_gem_create_out	out;
-};
-
-/** Opcode to create new residency list.  */
-#define AMDGPU_BO_LIST_OP_CREATE	0
-/** Opcode to destroy previously created residency list */
-#define AMDGPU_BO_LIST_OP_DESTROY	1
-/** Opcode to update resource information in the list */
-#define AMDGPU_BO_LIST_OP_UPDATE	2
-
-struct drm_amdgpu_bo_list_in {
-	/** Type of operation */
-	__u32 operation;
-	/** Handle of list or 0 if we want to create one */
-	__u32 list_handle;
-	/** Number of BOs in list  */
-	__u32 bo_number;
-	/** Size of each element describing BO */
-	__u32 bo_info_size;
-	/** Pointer to array describing BOs */
-	__u64 bo_info_ptr;
-};
-
-struct drm_amdgpu_bo_list_entry {
-	/** Handle of BO */
-	__u32 bo_handle;
-	/** New (if specified) BO priority to be used during migration */
-	__u32 bo_priority;
-};
-
-struct drm_amdgpu_bo_list_out {
-	/** Handle of resource list  */
-	__u32 list_handle;
-	__u32 _pad;
-};
-
-union drm_amdgpu_bo_list {
-	struct drm_amdgpu_bo_list_in in;
-	struct drm_amdgpu_bo_list_out out;
-};
-
-/* context related */
-#define AMDGPU_CTX_OP_ALLOC_CTX	1
-#define AMDGPU_CTX_OP_FREE_CTX	2
-#define AMDGPU_CTX_OP_QUERY_STATE	3
-
-/* GPU reset status */
-#define AMDGPU_CTX_NO_RESET		0
-/* this the context caused it */
-#define AMDGPU_CTX_GUILTY_RESET		1
-/* some other context caused it */
-#define AMDGPU_CTX_INNOCENT_RESET	2
-/* unknown cause */
-#define AMDGPU_CTX_UNKNOWN_RESET	3
-
-struct drm_amdgpu_ctx_in {
-	/** AMDGPU_CTX_OP_* */
-	__u32	op;
-	/** For future use, no flags defined so far */
-	__u32	flags;
-	__u32	ctx_id;
-	__u32	_pad;
-};
-
-union drm_amdgpu_ctx_out {
-		struct {
-			__u32	ctx_id;
-			__u32	_pad;
-		} alloc;
-
-		struct {
-			/** For future use, no flags defined so far */
-			__u64	flags;
-			/** Number of resets caused by this context so far. */
-			__u32	hangs;
-			/** Reset status since the last call of the ioctl. */
-			__u32	reset_status;
-		} state;
-};
-
-union drm_amdgpu_ctx {
-	struct drm_amdgpu_ctx_in in;
-	union drm_amdgpu_ctx_out out;
-};
-
-/*
- * This is not a reliable API and you should expect it to fail for any
- * number of reasons and have fallback path that do not use userptr to
- * perform any operation.
- */
-#define AMDGPU_GEM_USERPTR_READONLY	(1 << 0)
-#define AMDGPU_GEM_USERPTR_ANONONLY	(1 << 1)
-#define AMDGPU_GEM_USERPTR_VALIDATE	(1 << 2)
-#define AMDGPU_GEM_USERPTR_REGISTER	(1 << 3)
-
-struct drm_amdgpu_gem_userptr {
-	__u64		addr;
-	__u64		size;
-	/* AMDGPU_GEM_USERPTR_* */
-	__u32		flags;
-	/* Resulting GEM handle */
-	__u32		handle;
-};
-
-/* same meaning as the GB_TILE_MODE and GL_MACRO_TILE_MODE fields */
-#define AMDGPU_TILING_ARRAY_MODE_SHIFT			0
-#define AMDGPU_TILING_ARRAY_MODE_MASK			0xf
-#define AMDGPU_TILING_PIPE_CONFIG_SHIFT			4
-#define AMDGPU_TILING_PIPE_CONFIG_MASK			0x1f
-#define AMDGPU_TILING_TILE_SPLIT_SHIFT			9
-#define AMDGPU_TILING_TILE_SPLIT_MASK			0x7
-#define AMDGPU_TILING_MICRO_TILE_MODE_SHIFT		12
-#define AMDGPU_TILING_MICRO_TILE_MODE_MASK		0x7
-#define AMDGPU_TILING_BANK_WIDTH_SHIFT			15
-#define AMDGPU_TILING_BANK_WIDTH_MASK			0x3
-#define AMDGPU_TILING_BANK_HEIGHT_SHIFT			17
-#define AMDGPU_TILING_BANK_HEIGHT_MASK			0x3
-#define AMDGPU_TILING_MACRO_TILE_ASPECT_SHIFT		19
-#define AMDGPU_TILING_MACRO_TILE_ASPECT_MASK		0x3
-#define AMDGPU_TILING_NUM_BANKS_SHIFT			21
-#define AMDGPU_TILING_NUM_BANKS_MASK			0x3
-
-#define AMDGPU_TILING_SET(field, value) \
-	(((value) & AMDGPU_TILING_##field##_MASK) << AMDGPU_TILING_##field##_SHIFT)
-#define AMDGPU_TILING_GET(value, field) \
-	(((value) >> AMDGPU_TILING_##field##_SHIFT) & AMDGPU_TILING_##field##_MASK)
-
-#define AMDGPU_GEM_METADATA_OP_SET_METADATA                  1
-#define AMDGPU_GEM_METADATA_OP_GET_METADATA                  2
-
-/** The same structure is shared for input/output */
-struct drm_amdgpu_gem_metadata {
-	/** GEM Object handle */
-	__u32	handle;
-	/** Do we want get or set metadata */
-	__u32	op;
-	struct {
-		/** For future use, no flags defined so far */
-		__u64	flags;
-		/** family specific tiling info */
-		__u64	tiling_info;
-		__u32	data_size_bytes;
-		__u32	data[64];
-	} data;
-};
-
-struct drm_amdgpu_gem_mmap_in {
-	/** the GEM object handle */
-	__u32 handle;
-	__u32 _pad;
-};
-
-struct drm_amdgpu_gem_mmap_out {
-	/** mmap offset from the vma offset manager */
-	__u64 addr_ptr;
-};
-
-union drm_amdgpu_gem_mmap {
-	struct drm_amdgpu_gem_mmap_in   in;
-	struct drm_amdgpu_gem_mmap_out out;
-};
-
-struct drm_amdgpu_gem_wait_idle_in {
-	/** GEM object handle */
-	__u32 handle;
-	/** For future use, no flags defined so far */
-	__u32 flags;
-	/** Absolute timeout to wait */
-	__u64 timeout;
-};
-
-struct drm_amdgpu_gem_wait_idle_out {
-	/** BO status:  0 - BO is idle, 1 - BO is busy */
-	__u32 status;
-	/** Returned current memory domain */
-	__u32 domain;
-};
-
-union drm_amdgpu_gem_wait_idle {
-	struct drm_amdgpu_gem_wait_idle_in  in;
-	struct drm_amdgpu_gem_wait_idle_out out;
-};
-
-struct drm_amdgpu_wait_cs_in {
-	/** Command submission handle */
-	__u64 handle;
-	/** Absolute timeout to wait */
-	__u64 timeout;
-	__u32 ip_type;
-	__u32 ip_instance;
-	__u32 ring;
-	__u32 ctx_id;
-};
-
-struct drm_amdgpu_wait_cs_out {
-	/** CS status:  0 - CS completed, 1 - CS still busy */
-	__u64 status;
-};
-
-union drm_amdgpu_wait_cs {
-	struct drm_amdgpu_wait_cs_in in;
-	struct drm_amdgpu_wait_cs_out out;
-};
-
-#define AMDGPU_GEM_OP_GET_GEM_CREATE_INFO	0
-#define AMDGPU_GEM_OP_SET_PLACEMENT		1
-
-/* Sets or returns a value associated with a buffer. */
-struct drm_amdgpu_gem_op {
-	/** GEM object handle */
-	__u32	handle;
-	/** AMDGPU_GEM_OP_* */
-	__u32	op;
-	/** Input or return value */
-	__u64	value;
-};
-
-#define AMDGPU_VA_OP_MAP			1
-#define AMDGPU_VA_OP_UNMAP			2
-
-/* Delay the page table update till the next CS */
-#define AMDGPU_VM_DELAY_UPDATE		(1 << 0)
-
-/* Mapping flags */
-/* readable mapping */
-#define AMDGPU_VM_PAGE_READABLE		(1 << 1)
-/* writable mapping */
-#define AMDGPU_VM_PAGE_WRITEABLE	(1 << 2)
-/* executable mapping, new for VI */
-#define AMDGPU_VM_PAGE_EXECUTABLE	(1 << 3)
-
-struct drm_amdgpu_gem_va {
-	/** GEM object handle */
-	__u32 handle;
-	__u32 _pad;
-	/** AMDGPU_VA_OP_* */
-	__u32 operation;
-	/** AMDGPU_VM_PAGE_* */
-	__u32 flags;
-	/** va address to assign . Must be correctly aligned.*/
-	__u64 va_address;
-	/** Specify offset inside of BO to assign. Must be correctly aligned.*/
-	__u64 offset_in_bo;
-	/** Specify mapping size. Must be correctly aligned. */
-	__u64 map_size;
-};
-
-#define AMDGPU_HW_IP_GFX          0
-#define AMDGPU_HW_IP_COMPUTE      1
-#define AMDGPU_HW_IP_DMA          2
-#define AMDGPU_HW_IP_UVD          3
-#define AMDGPU_HW_IP_VCE          4
-#define AMDGPU_HW_IP_NUM          5
-
-#define AMDGPU_HW_IP_INSTANCE_MAX_COUNT 1
-
-#define AMDGPU_CHUNK_ID_IB		0x01
-#define AMDGPU_CHUNK_ID_FENCE		0x02
-#define AMDGPU_CHUNK_ID_DEPENDENCIES	0x03
-
-struct drm_amdgpu_cs_chunk {
-	__u32		chunk_id;
-	__u32		length_dw;
-	__u64		chunk_data;
-};
-
-struct drm_amdgpu_cs_in {
-	/** Rendering context id */
-	__u32		ctx_id;
-	/**  Handle of resource list associated with CS */
-	__u32		bo_list_handle;
-	__u32		num_chunks;
-	__u32		_pad;
-	/** this points to __u64 * which point to cs chunks */
-	__u64		chunks;
-};
-
-struct drm_amdgpu_cs_out {
-	__u64 handle;
-};
-
-union drm_amdgpu_cs {
-	struct drm_amdgpu_cs_in in;
-	struct drm_amdgpu_cs_out out;
-};
-
-/* Specify flags to be used for IB */
-
-/* This IB should be submitted to CE */
-#define AMDGPU_IB_FLAG_CE	(1<<0)
-
-/* CE Preamble */
-#define AMDGPU_IB_FLAG_PREAMBLE (1<<1)
-
-struct drm_amdgpu_cs_chunk_ib {
-	__u32 _pad;
-	/** AMDGPU_IB_FLAG_* */
-	__u32 flags;
-	/** Virtual address to begin IB execution */
-	__u64 va_start;
-	/** Size of submission */
-	__u32 ib_bytes;
-	/** HW IP to submit to */
-	__u32 ip_type;
-	/** HW IP index of the same type to submit to  */
-	__u32 ip_instance;
-	/** Ring index to submit to */
-	__u32 ring;
-};
-
-struct drm_amdgpu_cs_chunk_dep {
-	__u32 ip_type;
-	__u32 ip_instance;
-	__u32 ring;
-	__u32 ctx_id;
-	__u64 handle;
-};
-
-struct drm_amdgpu_cs_chunk_fence {
-	__u32 handle;
-	__u32 offset;
-};
-
-struct drm_amdgpu_cs_chunk_data {
-	union {
-		struct drm_amdgpu_cs_chunk_ib		ib_data;
-		struct drm_amdgpu_cs_chunk_fence	fence_data;
-	};
-};
-
-/**
- *  Query h/w info: Flag that this is integrated (a.h.a. fusion) GPU
- *
- */
-#define AMDGPU_IDS_FLAGS_FUSION         0x1
-
-/* indicate if acceleration can be working */
-#define AMDGPU_INFO_ACCEL_WORKING		0x00
-/* get the crtc_id from the mode object id? */
-#define AMDGPU_INFO_CRTC_FROM_ID		0x01
-/* query hw IP info */
-#define AMDGPU_INFO_HW_IP_INFO			0x02
-/* query hw IP instance count for the specified type */
-#define AMDGPU_INFO_HW_IP_COUNT			0x03
-/* timestamp for GL_ARB_timer_query */
-#define AMDGPU_INFO_TIMESTAMP			0x05
-/* Query the firmware version */
-#define AMDGPU_INFO_FW_VERSION			0x0e
-	/* Subquery id: Query VCE firmware version */
-	#define AMDGPU_INFO_FW_VCE		0x1
-	/* Subquery id: Query UVD firmware version */
-	#define AMDGPU_INFO_FW_UVD		0x2
-	/* Subquery id: Query GMC firmware version */
-	#define AMDGPU_INFO_FW_GMC		0x03
-	/* Subquery id: Query GFX ME firmware version */
-	#define AMDGPU_INFO_FW_GFX_ME		0x04
-	/* Subquery id: Query GFX PFP firmware version */
-	#define AMDGPU_INFO_FW_GFX_PFP		0x05
-	/* Subquery id: Query GFX CE firmware version */
-	#define AMDGPU_INFO_FW_GFX_CE		0x06
-	/* Subquery id: Query GFX RLC firmware version */
-	#define AMDGPU_INFO_FW_GFX_RLC		0x07
-	/* Subquery id: Query GFX MEC firmware version */
-	#define AMDGPU_INFO_FW_GFX_MEC		0x08
-	/* Subquery id: Query SMC firmware version */
-	#define AMDGPU_INFO_FW_SMC		0x0a
-	/* Subquery id: Query SDMA firmware version */
-	#define AMDGPU_INFO_FW_SDMA		0x0b
-/* number of bytes moved for TTM migration */
-#define AMDGPU_INFO_NUM_BYTES_MOVED		0x0f
-/* the used VRAM size */
-#define AMDGPU_INFO_VRAM_USAGE			0x10
-/* the used GTT size */
-#define AMDGPU_INFO_GTT_USAGE			0x11
-/* Information about GDS, etc. resource configuration */
-#define AMDGPU_INFO_GDS_CONFIG			0x13
-/* Query information about VRAM and GTT domains */
-#define AMDGPU_INFO_VRAM_GTT			0x14
-/* Query information about register in MMR address space*/
-#define AMDGPU_INFO_READ_MMR_REG		0x15
-/* Query information about device: rev id, family, etc. */
-#define AMDGPU_INFO_DEV_INFO			0x16
-/* visible vram usage */
-#define AMDGPU_INFO_VIS_VRAM_USAGE		0x17
-/* number of TTM buffer evictions */
-#define AMDGPU_INFO_NUM_EVICTIONS		0x18
-
-#define AMDGPU_INFO_MMR_SE_INDEX_SHIFT	0
-#define AMDGPU_INFO_MMR_SE_INDEX_MASK	0xff
-#define AMDGPU_INFO_MMR_SH_INDEX_SHIFT	8
-#define AMDGPU_INFO_MMR_SH_INDEX_MASK	0xff
-
-struct drm_amdgpu_query_fw {
-	/** AMDGPU_INFO_FW_* */
-	__u32 fw_type;
-	/**
-	 * Index of the IP if there are more IPs of
-	 * the same type.
-	 */
-	__u32 ip_instance;
-	/**
-	 * Index of the engine. Whether this is used depends
-	 * on the firmware type. (e.g. MEC, SDMA)
-	 */
-	__u32 index;
-	__u32 _pad;
-};
-
-/* Input structure for the INFO ioctl */
-struct drm_amdgpu_info {
-	/* Where the return value will be stored */
-	__u64 return_pointer;
-	/* The size of the return value. Just like "size" in "snprintf",
-	 * it limits how many bytes the kernel can write. */
-	__u32 return_size;
-	/* The query request id. */
-	__u32 query;
-
-	union {
-		struct {
-			__u32 id;
-			__u32 _pad;
-		} mode_crtc;
-
-		struct {
-			/** AMDGPU_HW_IP_* */
-			__u32 type;
-			/**
-			 * Index of the IP if there are more IPs of the same
-			 * type. Ignored by AMDGPU_INFO_HW_IP_COUNT.
-			 */
-			__u32 ip_instance;
-		} query_hw_ip;
-
-		struct {
-			__u32 dword_offset;
-			/** number of registers to read */
-			__u32 count;
-			__u32 instance;
-			/** For future use, no flags defined so far */
-			__u32 flags;
-		} read_mmr_reg;
-
-		struct drm_amdgpu_query_fw query_fw;
-	};
-};
-
-struct drm_amdgpu_info_gds {
-	/** GDS GFX partition size */
-	__u32 gds_gfx_partition_size;
-	/** GDS compute partition size */
-	__u32 compute_partition_size;
-	/** total GDS memory size */
-	__u32 gds_total_size;
-	/** GWS size per GFX partition */
-	__u32 gws_per_gfx_partition;
-	/** GSW size per compute partition */
-	__u32 gws_per_compute_partition;
-	/** OA size per GFX partition */
-	__u32 oa_per_gfx_partition;
-	/** OA size per compute partition */
-	__u32 oa_per_compute_partition;
-	__u32 _pad;
-};
-
-struct drm_amdgpu_info_vram_gtt {
-	__u64 vram_size;
-	__u64 vram_cpu_accessible_size;
-	__u64 gtt_size;
-};
-
-struct drm_amdgpu_info_firmware {
-	__u32 ver;
-	__u32 feature;
-};
-
-#define AMDGPU_VRAM_TYPE_UNKNOWN 0
-#define AMDGPU_VRAM_TYPE_GDDR1 1
-#define AMDGPU_VRAM_TYPE_DDR2  2
-#define AMDGPU_VRAM_TYPE_GDDR3 3
-#define AMDGPU_VRAM_TYPE_GDDR4 4
-#define AMDGPU_VRAM_TYPE_GDDR5 5
-#define AMDGPU_VRAM_TYPE_HBM   6
-#define AMDGPU_VRAM_TYPE_DDR3  7
-
-struct drm_amdgpu_info_device {
-	/** PCI Device ID */
-	__u32 device_id;
-	/** Internal chip revision: A0, A1, etc.) */
-	__u32 chip_rev;
-	__u32 external_rev;
-	/** Revision id in PCI Config space */
-	__u32 pci_rev;
-	__u32 family;
-	__u32 num_shader_engines;
-	__u32 num_shader_arrays_per_engine;
-	/* in KHz */
-	__u32 gpu_counter_freq;
-	__u64 max_engine_clock;
-	__u64 max_memory_clock;
-	/* cu information */
-	__u32 cu_active_number;
-	__u32 cu_ao_mask;
-	__u32 cu_bitmap[4][4];
-	/** Render backend pipe mask. One render backend is CB+DB. */
-	__u32 enabled_rb_pipes_mask;
-	__u32 num_rb_pipes;
-	__u32 num_hw_gfx_contexts;
-	__u32 _pad;
-	__u64 ids_flags;
-	/** Starting virtual address for UMDs. */
-	__u64 virtual_address_offset;
-	/** The maximum virtual address */
-	__u64 virtual_address_max;
-	/** Required alignment of virtual addresses. */
-	__u32 virtual_address_alignment;
-	/** Page table entry - fragment size */
-	__u32 pte_fragment_size;
-	__u32 gart_page_size;
-	/** constant engine ram size*/
-	__u32 ce_ram_size;
-	/** video memory type info*/
-	__u32 vram_type;
-	/** video memory bit width*/
-	__u32 vram_bit_width;
-	/* vce harvesting instance */
-	__u32 vce_harvest_config;
-};
-
-struct drm_amdgpu_info_hw_ip {
-	/** Version of h/w IP */
-	__u32  hw_ip_version_major;
-	__u32  hw_ip_version_minor;
-	/** Capabilities */
-	__u64  capabilities_flags;
-	/** command buffer address start alignment*/
-	__u32  ib_start_alignment;
-	/** command buffer size alignment*/
-	__u32  ib_size_alignment;
-	/** Bitmask of available rings. Bit 0 means ring 0, etc. */
-	__u32  available_rings;
-	__u32  _pad;
-};
-
-/*
- * Supported GPU families
- */
-#define AMDGPU_FAMILY_UNKNOWN			0
-#define AMDGPU_FAMILY_SI			110 /* Hainan, Oland, Verde, Pitcairn, Tahiti */
-#define AMDGPU_FAMILY_CI			120 /* Bonaire, Hawaii */
-#define AMDGPU_FAMILY_KV			125 /* Kaveri, Kabini, Mullins */
-#define AMDGPU_FAMILY_VI			130 /* Iceland, Tonga */
-#define AMDGPU_FAMILY_CZ			135 /* Carrizo, Stoney */
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif

drivers/include/uapi/drm/nouveau_drm.h

@@ -1,152 +0,0 @@
-/*
- * Copyright 2005 Stephane Marchesin.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef __NOUVEAU_DRM_H__
-#define __NOUVEAU_DRM_H__
-
-#define DRM_NOUVEAU_EVENT_NVIF                                       0x80000000
-
-#include "drm.h"
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#define NOUVEAU_GEM_DOMAIN_CPU       (1 << 0)
-#define NOUVEAU_GEM_DOMAIN_VRAM      (1 << 1)
-#define NOUVEAU_GEM_DOMAIN_GART      (1 << 2)
-#define NOUVEAU_GEM_DOMAIN_MAPPABLE  (1 << 3)
-#define NOUVEAU_GEM_DOMAIN_COHERENT  (1 << 4)
-
-#define NOUVEAU_GEM_TILE_COMP        0x00030000 /* nv50-only */
-#define NOUVEAU_GEM_TILE_LAYOUT_MASK 0x0000ff00
-#define NOUVEAU_GEM_TILE_16BPP       0x00000001
-#define NOUVEAU_GEM_TILE_32BPP       0x00000002
-#define NOUVEAU_GEM_TILE_ZETA        0x00000004
-#define NOUVEAU_GEM_TILE_NONCONTIG   0x00000008
-
-struct drm_nouveau_gem_info {
-	__u32 handle;
-	__u32 domain;
-	__u64 size;
-	__u64 offset;
-	__u64 map_handle;
-	__u32 tile_mode;
-	__u32 tile_flags;
-};
-
-struct drm_nouveau_gem_new {
-	struct drm_nouveau_gem_info info;
-	__u32 channel_hint;
-	__u32 align;
-};
-
-#define NOUVEAU_GEM_MAX_BUFFERS 1024
-struct drm_nouveau_gem_pushbuf_bo_presumed {
-	__u32 valid;
-	__u32 domain;
-	__u64 offset;
-};
-
-struct drm_nouveau_gem_pushbuf_bo {
-	__u64 user_priv;
-	__u32 handle;
-	__u32 read_domains;
-	__u32 write_domains;
-	__u32 valid_domains;
-	struct drm_nouveau_gem_pushbuf_bo_presumed presumed;
-};
-
-#define NOUVEAU_GEM_RELOC_LOW  (1 << 0)
-#define NOUVEAU_GEM_RELOC_HIGH (1 << 1)
-#define NOUVEAU_GEM_RELOC_OR   (1 << 2)
-#define NOUVEAU_GEM_MAX_RELOCS 1024
-struct drm_nouveau_gem_pushbuf_reloc {
-	__u32 reloc_bo_index;
-	__u32 reloc_bo_offset;
-	__u32 bo_index;
-	__u32 flags;
-	__u32 data;
-	__u32 vor;
-	__u32 tor;
-};
-
-#define NOUVEAU_GEM_MAX_PUSH 512
-struct drm_nouveau_gem_pushbuf_push {
-	__u32 bo_index;
-	__u32 pad;
-	__u64 offset;
-	__u64 length;
-};
-
-struct drm_nouveau_gem_pushbuf {
-	__u32 channel;
-	__u32 nr_buffers;
-	__u64 buffers;
-	__u32 nr_relocs;
-	__u32 nr_push;
-	__u64 relocs;
-	__u64 push;
-	__u32 suffix0;
-	__u32 suffix1;
-	__u64 vram_available;
-	__u64 gart_available;
-};
-
-#define NOUVEAU_GEM_CPU_PREP_NOWAIT                                  0x00000001
-#define NOUVEAU_GEM_CPU_PREP_WRITE                                   0x00000004
-struct drm_nouveau_gem_cpu_prep {
-	__u32 handle;
-	__u32 flags;
-};
-
-struct drm_nouveau_gem_cpu_fini {
-	__u32 handle;
-};
-
-#define DRM_NOUVEAU_GETPARAM           0x00 /* deprecated */
-#define DRM_NOUVEAU_SETPARAM           0x01 /* deprecated */
-#define DRM_NOUVEAU_CHANNEL_ALLOC      0x02 /* deprecated */
-#define DRM_NOUVEAU_CHANNEL_FREE       0x03 /* deprecated */
-#define DRM_NOUVEAU_GROBJ_ALLOC        0x04 /* deprecated */
-#define DRM_NOUVEAU_NOTIFIEROBJ_ALLOC  0x05 /* deprecated */
-#define DRM_NOUVEAU_GPUOBJ_FREE        0x06 /* deprecated */
-#define DRM_NOUVEAU_NVIF               0x07
-#define DRM_NOUVEAU_GEM_NEW            0x40
-#define DRM_NOUVEAU_GEM_PUSHBUF        0x41
-#define DRM_NOUVEAU_GEM_CPU_PREP       0x42
-#define DRM_NOUVEAU_GEM_CPU_FINI       0x43
-#define DRM_NOUVEAU_GEM_INFO           0x44
-
-#define DRM_IOCTL_NOUVEAU_GEM_NEW            DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_NEW, struct drm_nouveau_gem_new)
-#define DRM_IOCTL_NOUVEAU_GEM_PUSHBUF        DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_PUSHBUF, struct drm_nouveau_gem_pushbuf)
-#define DRM_IOCTL_NOUVEAU_GEM_CPU_PREP       DRM_IOW (DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_PREP, struct drm_nouveau_gem_cpu_prep)
-#define DRM_IOCTL_NOUVEAU_GEM_CPU_FINI       DRM_IOW (DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_FINI, struct drm_nouveau_gem_cpu_fini)
-#define DRM_IOCTL_NOUVEAU_GEM_INFO           DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_INFO, struct drm_nouveau_gem_info)
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* __NOUVEAU_DRM_H__ */

drivers/peimport.inc

@@ -139,6 +139,7 @@ import core,\
               RegKeyboard,\
               DelKeyboard,\
               Sleep,\
+              Delay,\
               GetTimerTicks,\
 \
               strncat,\

drivers/video/drm/drm_encoder_slave.c

@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2009 Francisco Jerez.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#include <linux/module.h>
-
-#include <drm/drm_encoder_slave.h>
-
-/**
- * drm_i2c_encoder_init - Initialize an I2C slave encoder
- * @dev:	DRM device.
- * @encoder:    Encoder to be attached to the I2C device. You aren't
- *		required to have called drm_encoder_init() before.
- * @adap:	I2C adapter that will be used to communicate with
- *		the device.
- * @info:	Information that will be used to create the I2C device.
- *		Required fields are @addr and @type.
- *
- * Create an I2C device on the specified bus (the module containing its
- * driver is transparently loaded) and attach it to the specified
- * &drm_encoder_slave. The @slave_funcs field will be initialized with
- * the hooks provided by the slave driver.
- *
- * If @info->platform_data is non-NULL it will be used as the initial
- * slave config.
- *
- * Returns 0 on success or a negative errno on failure, in particular,
- * -ENODEV is returned when no matching driver is found.
- */
-int drm_i2c_encoder_init(struct drm_device *dev,
-			 struct drm_encoder_slave *encoder,
-			 struct i2c_adapter *adap,
-			 const struct i2c_board_info *info)
-{
-	struct module *module = NULL;
-	struct i2c_client *client;
-	struct drm_i2c_encoder_driver *encoder_drv;
-	int err = 0;
-
-	request_module("%s%s", I2C_MODULE_PREFIX, info->type);
-
-	client = i2c_new_device(adap, info);
-	if (!client) {
-		err = -ENOMEM;
-		goto fail;
-	}
-
-	if (!client->dev.driver) {
-		err = -ENODEV;
-		goto fail_unregister;
-	}
-
-	module = client->dev.driver->owner;
-	if (!try_module_get(module)) {
-		err = -ENODEV;
-		goto fail_unregister;
-	}
-
-	encoder->bus_priv = client;
-
-	encoder_drv = to_drm_i2c_encoder_driver(to_i2c_driver(client->dev.driver));
-
-	err = encoder_drv->encoder_init(client, dev, encoder);
-	if (err)
-		goto fail_module_put;
-
-	if (info->platform_data)
-		encoder->slave_funcs->set_config(&encoder->base,
-						 info->platform_data);
-
-	return 0;
-
-fail_module_put:
-	module_put(module);
-fail_unregister:
-	i2c_unregister_device(client);
-fail:
-	return err;
-}
-EXPORT_SYMBOL(drm_i2c_encoder_init);
-
-/**
- * drm_i2c_encoder_destroy - Unregister the I2C device backing an encoder
- * @drm_encoder:	Encoder to be unregistered.
- *
- * This should be called from the @destroy method of an I2C slave
- * encoder driver once I2C access is no longer needed.
- */
-void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
-{
-	struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
-	struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
-	struct module *module = client->dev.driver->owner;
-
-	i2c_unregister_device(client);
-	encoder->bus_priv = NULL;
-
-	module_put(module);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_destroy);
-
-/*
- * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs:
- */
-
-static inline const struct drm_encoder_slave_funcs *
-get_slave_funcs(struct drm_encoder *enc)
-{
-	return to_encoder_slave(enc)->slave_funcs;
-}
-
-void drm_i2c_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
-	get_slave_funcs(encoder)->dpms(encoder, mode);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_dpms);
-
-bool drm_i2c_encoder_mode_fixup(struct drm_encoder *encoder,
-		const struct drm_display_mode *mode,
-		struct drm_display_mode *adjusted_mode)
-{
-	if (!get_slave_funcs(encoder)->mode_fixup)
-		return true;
-
-	return get_slave_funcs(encoder)->mode_fixup(encoder, mode, adjusted_mode);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_mode_fixup);
-
-void drm_i2c_encoder_prepare(struct drm_encoder *encoder)
-{
-	drm_i2c_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_prepare);
-
-void drm_i2c_encoder_commit(struct drm_encoder *encoder)
-{
-	drm_i2c_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_commit);
-
-void drm_i2c_encoder_mode_set(struct drm_encoder *encoder,
-		struct drm_display_mode *mode,
-		struct drm_display_mode *adjusted_mode)
-{
-	get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_mode_set);
-
-enum drm_connector_status drm_i2c_encoder_detect(struct drm_encoder *encoder,
-	    struct drm_connector *connector)
-{
-	return get_slave_funcs(encoder)->detect(encoder, connector);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_detect);
-
-void drm_i2c_encoder_save(struct drm_encoder *encoder)
-{
-	get_slave_funcs(encoder)->save(encoder);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_save);
-
-void drm_i2c_encoder_restore(struct drm_encoder *encoder)
-{
-	get_slave_funcs(encoder)->restore(encoder);
-}
-EXPORT_SYMBOL(drm_i2c_encoder_restore);

kernel/trunk/blkdev/disk.inc

@@ -842,8 +842,7 @@ disk_scan_partitions:
         cmp     ebx, mbr_buffer
         jz      .release_partition_buffer
 ; 15b. If we have allocated it, free it.
-        xchg    eax, ebx
-        call    free
+        stdcall kernel_free, ebx
         jmp     .nothing
 ; 15c. Otherwise, release reference.
 .release_partition_buffer:

kernel/trunk/const.inc

@@ -183,6 +183,8 @@ EFLAGS_ID      =    0x200000  ; id flag
 IRQ_PIC        =    0
 IRQ_APIC       =    1
 
+IO_MAP_SIZE    =    65536/8 ; 8192 or 2 PAGE_SIZE
+
 struct  TSS
         _back       rw 2
         _esp0       rd 1
@@ -290,6 +292,9 @@ sys_proc            = OS_BASE + 0x008E000
 
 SLOT_BASE           = OS_BASE + 0x0090000
 
+APPDATA_IDLE_THREAD = SLOT_BASE + sizeof.APPDATA*1 ; poiner to IDLE thread
+APPDATA_OS_THREAD   = SLOT_BASE + sizeof.APPDATA*2 ; poiner to OS thread
+
 VGABasePtr          = OS_BASE + 0x00A0000
 
 virtual at            OS_BASE + 0x05FFF80
@@ -570,7 +575,7 @@ struct  APPDATA
         ipc_start       dd ?            ;+160
         ipc_size        dd ?            ;+164
         occurred_events dd ?            ;+168  ; mask which accumulates occurred events
-        debugger_slot   dd ?            ;+172  ; index in SLOT_BASE array
+        debugger_thread dd ?            ;+172  ; pointer to APPDATA or 0
         terminate_protection dd ?       ;+176
         keyboard_mode   db ?            ;+180
                         rb 3

kernel/trunk/core/debug.inc

@@ -8,8 +8,8 @@
 
 ; diamond, 2006
 sys_debug_services:
-        cmp     ebx, 9
-        ja      @f
+        cmp     ebx, sys_debug_services_table.count
+        jae     @f
         jmp     dword [sys_debug_services_table + ebx*4]
 @@:
         ret
@@ -26,7 +26,9 @@ sys_debug_services_table:
         dd      debug_write_process_memory
         dd      debug_terminate
         dd      debug_set_drx
+.count  = ($ - sys_debug_services_table)/4
 endg
+
 debug_set_event_data:
 ; in: ecx = pointer
 ; destroys eax
@@ -34,22 +36,20 @@ debug_set_event_data:
         mov     [eax + APPDATA.dbg_event_mem], ecx
         ret
 
-get_debuggee_slot:
+get_debuggee_thread:
 ; in: ecx=PID
 ; out: CF=1 if error
-;      CF=0 and eax=slot*0x20 if ok
+;      CF=0 and eax = pointer to APPDATA if ok
 ; out: interrupts disabled
         cli
         mov     eax, ecx
-        call    pid_to_slot
-        ;call     pid_to_appdata
+        call    pid_to_thread
         test    eax, eax
         jz      .ret_bad
-        shl     eax, BSF sizeof.APPDATA
+
         push    ebx
-        mov     ebx, [current_slot_idx]
-        cmp     [SLOT_BASE + eax + APPDATA.debugger_slot], ebx
-        ;cmp     [eax + APPDATA.debugger_slot], ebx
+        mov     ebx, [current_slot]
+        cmp     [eax + APPDATA.debugger_thread], ebx
         pop     ebx
         jnz     .ret_bad
 ;       clc     ; automatically
@@ -61,10 +61,9 @@ get_debuggee_slot:
 debug_detach:
 ; in: ecx=pid
 ; destroys eax,ebx
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .ret
-        and     dword [eax + SLOT_BASE + APPDATA.debugger_slot], 0
-        ;and     dword [eax + APPDATA.debugger_slot], 0
+        and     dword [eax + APPDATA.debugger_thread], 0
         call    do_resume
 .ret:
         sti
@@ -72,40 +71,27 @@ debug_detach:
 
 debug_terminate:
 ; in: ecx=pid
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      debug_detach.ret
         mov     ecx, eax
 
-        shr     ecx, BSF sizeof.APPDATA
-        ;movzx   ecx, ch ; del when sysfn_term... will using APPDATA
-
-;        push    2
-;        pop     ebx
-        mov     edx, esi ; what?
+        movzx   ecx, ch ; del when sysfn_term... will using APPDATA
         jmp     sysfn_terminate
 
 debug_suspend:
 ; in: ecx=pid
 ; destroys eax,ecx
-; { Patch by Coldy (rev. 7125), reason: http://board.kolibrios.org/viewtopic.php?f=1&t=1712&p=75957#p75957
-;        cli
-;        mov     eax, ecx
-;        call    pid_to_slot
-;        shl     eax, 5
-;        jz      .ret
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .ret
-; } End patch
-        mov     cl, [SLOT_BASE + eax + APPDATA.state] ; process state
-        ;mov     cl, [eax + APPDATA.state] ; process state
+
+        mov     cl, [eax + APPDATA.state] ; process state
         test    cl, cl
         jz      .1
         cmp     cl, TSTATE_WAITING
         jnz     .ret
         mov     cl, TSTATE_WAIT_SUSPENDED
 .2:
-        mov     [SLOT_BASE + eax + APPDATA.state], cl
-        ;mov     [eax + APPDATA.state], cl
+        mov     [eax + APPDATA.state], cl
 .ret:
         sti
         ret
@@ -114,16 +100,14 @@ debug_suspend:
         jmp     .2
 
 do_resume:
-        mov     cl, [SLOT_BASE + eax + APPDATA.state]
-        ;mov     cl, [eax + APPDATA.state]
+        mov     cl, [eax + APPDATA.state]
         cmp     cl, TSTATE_RUN_SUSPENDED
         jz      .1
         cmp     cl, TSTATE_WAIT_SUSPENDED
         jnz     .ret
         mov     cl, TSTATE_WAITING
 .2:
-        mov     [SLOT_BASE + eax + APPDATA.state], cl
-        ;mov     [eax + APPDATA.state], cl
+        mov     [eax + APPDATA.state], cl
 .ret:
         ret
 .1:
@@ -133,11 +117,9 @@ do_resume:
 debug_resume:
 ; in: ecx=pid
 ; destroys eax,ebx
-        cli
-        mov     eax, ecx
-        call    pid_to_slot
-        shl     eax, BSF sizeof.APPDATA
-        jz      .ret
+        call    get_debuggee_thread
+        jc      .ret
+
         call    do_resume
 .ret:
         sti
@@ -160,21 +142,15 @@ debug_getcontext:
         inc     ebx                 ; 1 - get sse context
                                   ; TODO legacy 32-bit FPU/MMX context
 .std_ctx:
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .ret
 
-        shr     eax, BSF sizeof.APPDATA
-        ;movzx   ebp, ah
-
         cmp     eax, [fpu_owner]
-        ;cmp     ebp, [fpu_owner]
         jne     @f
         inc     bh                ; set swap context flag
 @@:
-        shl     eax, BSF sizeof.APPDATA
         mov     edi, esi
-        mov     eax, [SLOT_BASE + eax + APPDATA.pl0_stack]
-        ;mov     eax, [eax + APPDATA.pl0_stack]
+        mov     eax, [eax + APPDATA.pl0_stack]
         lea     esi, [eax + RING0_STACK_SIZE]
 
 .ring0:
@@ -240,11 +216,10 @@ debug_setcontext:
         cmp     edx, 28h
         jnz     .ret
 
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .stiret
-;        mov     esi, edx
-        mov     eax, [eax + SLOT_BASE+APPDATA.pl0_stack]
-        ;mov     eax, [eax + APPDATA.pl0_stack]
+
+        mov     eax, [eax + APPDATA.pl0_stack]
         lea     edi, [eax + RING0_STACK_SIZE]
 
 .ring0:
@@ -277,15 +252,16 @@ debug_setcontext:
         ret
 
 debug_set_drx:
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .errret
+
         mov     ebp, eax
-        lea     eax, [eax + SLOT_BASE + APPDATA.dbg_regs]
-        ;lea     eax, [eax + APPDATA.dbg_regs]
+        lea     eax, [eax + APPDATA.dbg_regs]
 ; [eax]=dr0, [eax+4]=dr1, [eax+8]=dr2, [eax+C]=dr3
 ; [eax+10]=dr7
         cmp     esi, OS_BASE
         jae     .errret
+
         cmp     dl, 3
         ja      .errret
         mov     ecx, dr7
@@ -306,10 +282,7 @@ debug_set_drx:
         btr     dword [eax + 10h], edx    ; clear L<i> bit
         test    byte [eax + 10h], 55h
         jnz     .okret
-;        imul    eax, ebp, tss_step/32
-;        and     byte [eax + tss_data + TSS._trap], not 1
-        and     [SLOT_BASE + ebp + APPDATA.dbg_state], not 1
-        ;and     [ebp + APPDATA.dbg_state], not 1
+        and     [ebp + APPDATA.dbg_state], not 1
 .okret:
         and     dword [esp + SYSCALL_STACK.eax], 0
         sti
@@ -354,10 +327,7 @@ debug_set_drx:
         not     ebx
         and     [eax + 10h+2], bx
         or      [eax + 10h+2], dx         ; set R/W and LEN fields
-;        imul    eax, ebp, tss_step/32
-;        or      byte [eax + tss_data + TSS._trap], 1
-        or      [SLOT_BASE + ebp + APPDATA.dbg_state], 1
-        ;or      [ebp + APPDATA.dbg_state], 1
+        or      [ebp + APPDATA.dbg_state], 1
         jmp     .okret
 
 debug_read_process_memory:
@@ -368,10 +338,9 @@ debug_read_process_memory:
 ; esi=address in debuggee
 ; out: [esp+36]=sizeof(read)
 ; destroys all
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      .err
-        shr     eax, BSF sizeof.APPDATA
-        ;movzx   eax,ah
+
         mov     ecx, edi
         call    read_process_memory
         sti
@@ -389,10 +358,9 @@ debug_write_process_memory:
 ; esi=address in debuggee
 ; out: [esp+36]=sizeof(write)
 ; destroys all
-        call    get_debuggee_slot
+        call    get_debuggee_thread
         jc      debug_read_process_memory.err
-        shr     eax, BSF sizeof.APPDATA
-        ;movzx   eax,ah
+
         mov     ecx, edi
         call    write_process_memory
         sti
@@ -400,7 +368,7 @@ debug_write_process_memory:
         ret
 
 debugger_notify:
-; in: eax=debugger slot
+; in: eax=debugger thread
 ;     ecx=size of debug message
 ;     [esp+4]..[esp+4+ecx]=message
 ; interrupts must be disabled!
@@ -410,9 +378,7 @@ debugger_notify:
         mov     edi, [timer_ticks]
         add     edi, 500        ; 5 sec timeout
 .1:
-        mov     eax, ebp
-        shl     eax, BSF sizeof.APPDATA
-        mov     esi, [SLOT_BASE + eax + APPDATA.dbg_event_mem]
+        mov     esi, [ebp + APPDATA.dbg_event_mem]
         test    esi, esi
         jz      .ret
 ; read buffer header
@@ -466,8 +432,6 @@ debugger_notify:
         pop     edx
         call    write_process_memory
 ; new debug event
-        mov     eax, ebp
-        shl     eax, BSF sizeof.APPDATA
-        or      [SLOT_BASE + eax + APPDATA.occurred_events], EVENT_DEBUG
+        or      [ebp + APPDATA.occurred_events], EVENT_DEBUG
 .ret:
         ret

kernel/trunk/core/fpu.inc

@@ -150,10 +150,10 @@ init_avx512:
 
         ret
 
-; param
-;  eax= 512 bytes memory area aligned on a 16-byte boundary
-
 align 4
+; @brief Export function - Save FPU context in buffer
+; @param eax - 512 bytes memory area aligned on a 16-byte boundary
+; @return  not return
 fpu_save:
         push    ecx
         push    esi
@@ -166,7 +166,7 @@ fpu_save:
         mov     edi, eax
 
         mov     ecx, [fpu_owner]
-        mov     esi, [current_slot_idx]
+        mov     esi, [current_slot]
         cmp     ecx, esi
         jne     .save
 
@@ -175,14 +175,11 @@ fpu_save:
 .save:
         mov     [fpu_owner], esi
 
-        shl     ecx, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + ecx + APPDATA.fpu_state]
-
+        mov     eax, [ecx + APPDATA.fpu_state]
         call    save_context
 
 ; first 512 bytes of XSAVE area have the same format as FXSAVE
-        shl     esi, BSF sizeof.APPDATA
-        mov     esi, [SLOT_BASE + esi + APPDATA.fpu_state]
+        mov     esi, [esi + APPDATA.fpu_state]
         mov     ecx, 512/4
         cld
         rep movsd
@@ -194,14 +191,16 @@ fpu_save:
         pop     ecx
         ret
 
+; @brief Export function - Get size from AVX context
+; @return  size of buffer
 avx_save_size:
         mov     eax, [xsave_area_size]
         ret
 
-; param
-;  eax= avx_save_size() bytes memory area aligned on a 64-byte boundary
-
 align 4
+; @brief Export function - Save AVX context in buffer
+; @param eax - avx_save_size() bytes memory area aligned on a 64-byte boundary
+; @return  not return
 avx_save:
         push    ecx
         push    esi
@@ -214,7 +213,7 @@ avx_save:
         mov     edi, eax
 
         mov     ecx, [fpu_owner]
-        mov     esi, [current_slot_idx]
+        mov     esi, [current_slot]
         cmp     ecx, esi
         jne     .save
 
@@ -223,13 +222,10 @@ avx_save:
 .save:
         mov     [fpu_owner], esi
 
-        shl     ecx, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + ecx + APPDATA.fpu_state]
-
+        mov     eax, [ecx + APPDATA.fpu_state]
         call    save_context
 
-        shl     esi, BSF sizeof.APPDATA
-        mov     esi, [SLOT_BASE + esi + APPDATA.fpu_state]
+        mov     esi, [esi + APPDATA.fpu_state]
         mov     ecx, [xsave_area_size]
         add     ecx, 3
         shr     ecx, 2
@@ -264,9 +260,13 @@ save_fpu_context:
 
 
 align 4
+; @brief Export function - Restore FPU context
+; @param eax - 512 bytes memory area aligned on a 16-byte boundary
+; @return  not return
 fpu_restore:
         push    ecx
         push    esi
+        push    edi
 
         mov     esi, eax
 
@@ -274,7 +274,7 @@ fpu_restore:
         cli
 
         mov     ecx, [fpu_owner]
-        mov     eax, [current_slot_idx]
+        mov     eax, [current_slot]
         cmp     ecx, eax
         jne     .copy
 
@@ -284,6 +284,8 @@ fpu_restore:
 
         fxrstor [esi]
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
@@ -291,24 +293,31 @@ fpu_restore:
         fnclex                  ;fix possible problems
         frstor  [esi]
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
 .copy:
-        shl     eax, BSF sizeof.APPDATA
-        mov     edi, [SLOT_BASE + eax + APPDATA.fpu_state]
+        mov     edi, [eax + APPDATA.fpu_state]
         mov     ecx, 512/4
         cld
         rep movsd
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
 
 align 4
+; @brief Export function - Restore AVX context
+; @param eax - avx_save_size() bytes memory area aligned on a 64-byte boundary
+; @return  not return
 avx_restore:
         push    ecx
         push    esi
+        push    edi
 
         mov     esi, eax
 
@@ -316,7 +325,7 @@ avx_restore:
         cli
 
         mov     ecx, [fpu_owner]
-        mov     eax, [current_slot_idx]
+        mov     eax, [current_slot]
         cmp     ecx, eax
         jne     .copy
 
@@ -329,6 +338,8 @@ avx_restore:
         xrstor  [esi]
         pop     edx
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
@@ -338,6 +349,8 @@ avx_restore:
 
         fxrstor [esi]
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
@@ -345,18 +358,21 @@ avx_restore:
         fnclex                  ;fix possible problems
         frstor  [esi]
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
 .copy:
-        shl     eax, BSF sizeof.APPDATA
-        mov     edi, [SLOT_BASE + eax + APPDATA.fpu_state]
+        mov     edi, [eax + APPDATA.fpu_state]
         mov     ecx, [xsave_area_size]
         add     ecx, 3
         shr     ecx, 2
         cld
         rep movsd
         popfd
+
+        pop     edi
         pop     esi
         pop     ecx
         ret
@@ -370,21 +386,19 @@ except_7:                  ;#NM exception handler
         mov     es, ax
 
         mov     ebx, [fpu_owner]
-        cmp     ebx, [current_slot_idx]
+        cmp     ebx, [current_slot]
         je      .exit
 
-        shl     ebx, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
+        mov     eax, [ebx + APPDATA.fpu_state]
         bt      [cpu_caps + (CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
         jnc     .no_xsave
         mov     ecx, eax
         mov     eax, [xsave_eax]
         mov     edx, [xsave_edx]
         xsave   [ecx]
-        mov     ebx, [current_slot_idx]
+        mov     ebx, [current_slot]
         mov     [fpu_owner], ebx
-        shl     ebx, BSF sizeof.APPDATA
-        mov     ecx, [SLOT_BASE + ebx + APPDATA.fpu_state]
+        mov     ecx, [ebx + APPDATA.fpu_state]
         xrstor  [ecx]
 .exit:
         restore_ring3_context
@@ -394,24 +408,22 @@ except_7:                  ;#NM exception handler
         jnc     .no_SSE
 
         fxsave  [eax]
-        mov     ebx, [current_slot_idx]
+        mov     ebx, [current_slot]
         mov     [fpu_owner], ebx
-        shl     ebx, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
+        mov     eax, [ebx + APPDATA.fpu_state]
         fxrstor [eax]
         restore_ring3_context
         iret
 
 .no_SSE:
         fnsave  [eax]
-        mov     ebx, [current_slot_idx]
+        mov     ebx, [current_slot]
         mov     [fpu_owner], ebx
-        shl     ebx, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
+        mov     eax, [ebx + APPDATA.fpu_state]
         frstor  [eax]
         restore_ring3_context
         iret
 
 iglobal
-  fpu_owner dd 2
+  fpu_owner dd APPDATA_OS_THREAD
 endg

kernel/trunk/core/heap.inc

@@ -463,7 +463,7 @@ proc kernel_alloc stdcall, size:dword
         and     eax, -PAGE_SIZE;
         mov     [size], eax
         and     eax, eax
-        jz      .err
+        jz      .err0
         mov     ebx, eax
         shr     ebx, 12
         mov     [pages_count], ebx
@@ -509,6 +509,13 @@ proc kernel_alloc stdcall, size:dword
         pop     ebx
         ret
 .err:
+        mov     eax, [lin_addr]
+        test    eax, eax
+        jz      .err0
+        mov     ecx, [pages_count]
+        call    release_pages
+        stdcall free_kernel_space, [lin_addr]
+.err0:
         xor     eax, eax
         pop     edi
         pop     ebx

kernel/trunk/core/memory.inc

@@ -605,7 +605,7 @@ proc page_fault_handler
 
         mov     edi, [.err_addr]
         and     edi, -PAGE_SIZE
-        mov     ecx, 1024
+        mov     ecx, PAGE_SIZE/4
         xor     eax, eax
        ;cld     ;caller is duty for this
         rep stosd
@@ -664,7 +664,7 @@ proc page_fault_handler
         cmp     ebx, tss._io_map_0
         jb      .fail
 
-        cmp     ebx, tss._io_map_0+8192
+        cmp     ebx, tss._io_map_0 + IO_MAP_SIZE
         jae     .fail
 
 ; io permission map
@@ -695,7 +695,7 @@ proc page_fault_handler
 endp
 
 ; returns number of mapped bytes
-proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
+proc map_mem_ipc stdcall, lin_addr:dword,thread:dword,\
                       ofs:dword,buf_size:dword,req_access:dword
         locals
              count   dd ?
@@ -706,9 +706,8 @@ proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
         cmp     [buf_size], 0
         jz      .exit
 
-        mov     eax, [slot]
-        shl     eax, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + eax + APPDATA.process]
+        mov     eax, [thread]
+        mov     eax, [eax + APPDATA.process]
         test    eax, eax
         jz      .exit
 
@@ -732,7 +731,7 @@ proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
         shr     edx, 12
         and     edx, 0x3FF
 .map:
-        stdcall safe_map_page, [slot], [req_access], [ofs]
+        stdcall safe_map_page, [process], [req_access], [ofs]
         jnc     .exit
         add     [count], PAGE_SIZE
         add     [ofs], PAGE_SIZE
@@ -758,7 +757,7 @@ proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
         ret
 endp
 
-proc map_memEx stdcall, lin_addr:dword,slot:dword,\
+proc map_memEx stdcall, lin_addr:dword,thread:dword,\
                         ofs:dword,buf_size:dword,req_access:dword
         locals
              count   dd ?
@@ -769,9 +768,8 @@ proc map_memEx stdcall, lin_addr:dword,slot:dword,\
         cmp     [buf_size], 0
         jz      .exit
 
-        mov     eax, [slot]
-        shl     eax, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + eax + APPDATA.process]
+        mov     eax, [thread]
+        mov     eax, [eax + APPDATA.process]
         test    eax, eax
         jz      .exit
 
@@ -795,7 +793,7 @@ proc map_memEx stdcall, lin_addr:dword,slot:dword,\
         shr     edx, 12
         and     edx, 0x3FF
 .map:
-        stdcall safe_map_page, [slot], [req_access], [ofs]
+        stdcall safe_map_page, [process], [req_access], [ofs]
         jnc     .exit
         add     [count], PAGE_SIZE
         add     [ofs], PAGE_SIZE
@@ -826,7 +824,7 @@ endp
 ; in: edi = linear address to map
 ; out: CF cleared <=> failed
 ; destroys: only eax
-proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword
+proc safe_map_page stdcall, process:dword, req_access:dword, ofs:dword
         mov     eax, [esi + edx*4]
         test    al, PG_READ
         jz      .not_present
@@ -861,9 +859,7 @@ proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword
         cli
         cld
         push    ebx ecx
-        mov     eax, [slot]
-        shl     eax, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + eax + APPDATA.process]
+        mov     eax, [process]
         mov     eax, [eax + PROC.dlls_list_ptr]
         test    eax, eax
         jz      .no_hdll
@@ -953,7 +949,7 @@ sys_IPC:
 
 proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
            locals
-             dst_slot   dd ?
+             dst_thread dd ?
              dst_offset dd ?
              buf_size   dd ?
              used_buf   dd ?
@@ -963,13 +959,12 @@ proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
         cli
 
         mov     eax, [PID]
-        call    pid_to_slot
+        call    pid_to_thread
         test    eax, eax
         jz      .no_pid
 
-        mov     [dst_slot], eax
-        shl     eax, BSF sizeof.APPDATA
-        mov     edi, [SLOT_BASE + eax + APPDATA.ipc_start] ;is ipc area defined?
+        mov     [dst_thread], eax
+        mov     edi, [eax + APPDATA.ipc_start] ;is ipc area defined?
         test    edi, edi
         jz      .no_ipc_area
 
@@ -977,7 +972,7 @@ proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
         and     ebx, 0xFFF
         mov     [dst_offset], ebx
 
-        mov     esi, [SLOT_BASE + eax + APPDATA.ipc_size]
+        mov     esi, [eax + APPDATA.ipc_size]
         mov     [buf_size], esi
 
         mov     ecx, [ipc_tmp]
@@ -990,7 +985,7 @@ proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
         pop     edi esi
 @@:
         mov     [used_buf], ecx
-        stdcall map_mem_ipc, ecx, [dst_slot], \
+        stdcall map_mem_ipc, ecx, [dst_thread], \
                 edi, esi, PG_SWR
 
         mov     edi, [dst_offset]
@@ -1039,9 +1034,8 @@ proc sys_ipc_send stdcall, PID:dword, msg_addr:dword, msg_size:dword
         mov     [page_tabs + ebx*4], eax
         invlpg  [edx]
 
-        mov     eax, [dst_slot]
-        shl     eax, BSF sizeof.APPDATA
-        or      [SLOT_BASE + eax + APPDATA.occurred_events], EVENT_IPC
+        mov     eax, [dst_thread]
+        or      [eax + APPDATA.occurred_events], EVENT_IPC
         push    0
         jmp     .ret
 .no_pid:
@@ -1403,7 +1397,9 @@ proc create_ring_buffer stdcall, size:dword, flags:dword
         mov     [page_tabs + edi], eax
         mov     [page_tabs + edi + edx], eax
         invlpg  [ebx]
-        invlpg  [ebx+0x10000]
+        add     ebx, [size]
+        invlpg  [ebx]                   ; the mirror half
+        sub     ebx, [size]
         add     eax, 0x1000
         add     ebx, 0x1000
         add     edi, 4
@@ -1422,6 +1418,62 @@ proc create_ring_buffer stdcall, size:dword, flags:dword
         ret
 endp
 
+; Same as create_ring_buffer, but from non-contiguous pages.
+; Not for DMA. Free with kernel_free.
+align 4
+proc create_ring_buffer_sparse stdcall, size:dword, flags:dword
+           locals
+             buf_ptr  dd ?
+           endl
+
+        mov     eax, [size]
+        test    eax, eax
+        jz      .fail
+
+        add     eax, eax
+        stdcall alloc_kernel_space, eax
+        test    eax, eax
+        jz      .fail
+        mov     [buf_ptr], eax
+
+        push    ebx esi edi
+        mov     ebx, eax                ; page being mapped
+        mov     esi, [size]             ; distance to its mirror
+        mov     edi, esi
+        shr     edi, 12                 ; pages left
+  .page:
+        call    alloc_page
+        test    eax, eax
+        jz      .mm_fail
+        or      eax, [flags]
+        mov     edx, ebx
+        shr     edx, 12
+        mov     [page_tabs + edx*4], eax
+        invlpg  [ebx]
+        lea     edx, [ebx + esi]
+        shr     edx, 12
+        mov     [page_tabs + edx*4], eax
+        invlpg  [ebx + esi]
+        add     ebx, PAGE_SIZE
+        dec     edi
+        jnz     .page
+
+        mov     eax, [buf_ptr]
+        pop     edi esi ebx
+        ret
+
+  .mm_fail:
+        mov     eax, [buf_ptr]
+        mov     ecx, [size]
+        shr     ecx, 11                 ; both halves, in pages
+        call    release_pages
+        stdcall free_kernel_space, [buf_ptr]
+        pop     edi esi ebx
+        xor     eax, eax
+  .fail:
+        ret
+endp
+
 
 align 4
 proc print_mem

kernel/trunk/core/sched.inc

@@ -139,14 +139,13 @@ do_change_task:
         mov     eax, [xsave_eax]
         mov     edx, [xsave_edx]
         xsave   [ecx]
-        mov     ecx, [current_slot_idx]
-        mov     [fpu_owner], ecx
         mov     ecx, [current_slot]
+        mov     [fpu_owner], ecx
         mov     ecx, [ecx + APPDATA.fpu_state]
         xrstor  [ecx]
   .no_xsave:
       ; set CR0.TS
-        cmp     bh, byte[fpu_owner] ;bh == incoming task (new)
+        cmp     ebx, [fpu_owner]    ;ebx == incoming task (new)
         clts                        ;clear a task switch flag
         je      @f
         mov     eax, cr0            ;and set it again if the owner

kernel/trunk/core/sys32.inc

@@ -165,7 +165,7 @@ exc_c:                            ; exceptions (all but 7th - #NM)
         jnz     IRetToUserHook
   @@:
         cli
-        mov     eax, [esi + APPDATA.debugger_slot]
+        mov     eax, [esi + APPDATA.debugger_thread]
         test    eax, eax
         jnz     .debug
 ; not debuggee => say error and terminate
@@ -514,28 +514,30 @@ destroy_thread:
 @@:
         mov     eax, [esi + APPOBJ.fd]
         test    eax, eax
-        jz      @F
+        jz      @f
 
         cmp     eax, esi
-        je      @F
+        je      @f
 
         push    esi
         call    [eax + APPOBJ.destroy]
            DEBUGF 1,"%s",msg_obj_destroy
         pop     esi
-        jmp     @B
+        jmp     @b
 @@:
         mov     esi, [.slot]
+        shl     esi, BSF sizeof.APPDATA
+        add     esi, SLOT_BASE
         cmp     [fpu_owner], esi ; if user fpu last -> fpu user = 2
-        jne     @F
+        jne     @f
 
-        mov     [fpu_owner], 2
-        mov     eax, [SLOT_BASE + sizeof.APPDATA*2 + APPDATA.fpu_state]
+        mov     [fpu_owner], APPDATA_OS_THREAD
+        mov     eax, [APPDATA_OS_THREAD + APPDATA.fpu_state]
         clts
         bt      [cpu_caps], CAPS_SSE
         jnc     .no_SSE
         fxrstor [eax]
-        jmp     @F
+        jmp     @f
 .no_SSE:
         fnclex
         frstor  [eax]
@@ -544,8 +546,8 @@ destroy_thread:
         mov     [KEY_COUNT], byte 0    ; empty keyboard buffer
         mov     [BTN_COUNT], byte 0    ; empty button buffer
 
-
 ; remove defined hotkeys
+        mov     esi, [.slot]
         mov     eax, hotkey_list
 .loop:
         cmp     [eax+8], esi
@@ -638,7 +640,7 @@ destroy_thread:
         pushad
         mov     edi, esi
         shl     edi, BSF sizeof.APPDATA
-        mov     eax, [SLOT_BASE + edi + APPDATA.debugger_slot]
+        mov     eax, [SLOT_BASE + edi + APPDATA.debugger_thread]
         test    eax, eax
         jz      .nodebug
         movi    ecx, 8
@@ -666,12 +668,12 @@ destroy_thread:
         add     edi, SLOT_BASE
 
         mov     eax, [edi + APPDATA.io_map]
-        cmp     eax, [SLOT_BASE + sizeof.APPDATA+APPDATA.io_map]
+        cmp     eax, [APPDATA_IDLE_THREAD + APPDATA.io_map]
         je      @F
         call    free_page
 @@:
         mov     eax, [edi+APPDATA.io_map+4]
-        cmp     eax, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4]
+        cmp     eax, [APPDATA_IDLE_THREAD + APPDATA.io_map+4]
         je      @F
         call    free_page
 @@:
@@ -712,12 +714,12 @@ destroy_thread:
         call    free_cd_channel
         and     [cd_status], 0
 @@:
-        pop     esi
         cmp     [bgrlockpid], esi
         jnz     @f
         and     [bgrlockpid], 0
         and     [bgrlock], 0
 @@:
+        pop     esi
 
         pusha                 ; remove all port reservations
         mov     edx, esi
@@ -778,14 +780,15 @@ destroy_thread:
 
         mov     edi, esi ; do not run this process slot
         shl     edi, BSF sizeof.APPDATA
-        mov     [SLOT_BASE + edi + APPDATA.state], TSTATE_FREE
+        add     edi, SLOT_BASE
+        mov     [edi + APPDATA.state], TSTATE_FREE
 ; debugger test - terminate all debuggees
         mov     eax, 2
-        mov     ecx, SLOT_BASE + 2*sizeof.APPDATA + APPDATA.debugger_slot
+        mov     ecx, APPDATA_OS_THREAD + APPDATA.debugger_thread
 .xd0:
         cmp     eax, [thread_count]
         ja      .xd1
-        cmp     dword [ecx], esi
+        cmp     dword [ecx], edi
         jnz     @f
         and     dword [ecx], 0
         pushad

kernel/trunk/core/taskman.inc

@@ -537,21 +537,21 @@ pid_to_slot:
 align 4
 proc read_process_memory
 ;Input:
-;  eax - process slot
+;  eax - process thread
 ;  ecx - buffer address
 ;  edx - buffer size
 ;  esi - start address in other process
 ;Output:
 ;  eax - number of bytes read.
        locals
-         slot   dd ?
+         thread dd ?
          buff   dd ?
          r_count    dd ?
          offset dd ?
          tmp_r_cnt  dd ?
        endl
 
-        mov     [slot], eax
+        mov     [thread], eax
         mov     [buff], ecx
         and     [r_count], 0
         mov     [tmp_r_cnt], edx
@@ -577,7 +577,7 @@ proc read_process_memory
 
         push    ecx
         stdcall map_memEx, [proc_mem_map], \
-                [slot], ebx, ecx, PG_READ
+                [thread], ebx, ecx, PG_READ
         pop     ecx
 
         mov     esi, [offset]
@@ -607,7 +607,7 @@ endp
 align 4
 proc write_process_memory
 ;Input:
-;  eax - process slot
+;  eax - process thread
 ;  ecx - buffer address
 ;  edx - buffer size
 ;  esi - start address in other process
@@ -615,14 +615,14 @@ proc write_process_memory
 ;  eax - number of bytes written
 
        locals
-         slot   dd ?
+         thread dd ?
          buff   dd ?
          w_count    dd ?
          offset dd ?
          tmp_w_cnt  dd ?
        endl
 
-        mov     [slot], eax
+        mov     [thread], eax
         mov     [buff], ecx
         and     [w_count], 0
         mov     [tmp_w_cnt], edx
@@ -647,7 +647,7 @@ proc write_process_memory
         mov     ebx, [offset]
         push    ecx
         stdcall map_memEx, [proc_mem_map], \
-                [slot], ebx, ecx, PG_SWR
+                [thread], ebx, ecx, PG_SWR
         pop     ecx
 
         mov     edi, [offset]
@@ -906,7 +906,7 @@ common_app_entry:
         stdcall free_kernel_space, [ebp+APP_HDR.img_base]
         stdcall kernel_free, ebp
         mov     ebx, [current_slot]
-        cmp     [ebx + APPDATA.debugger_slot], 0
+        cmp     [ebx + APPDATA.debugger_thread], 0
         je      .exit
         mov     [ebx + APPDATA.state], TSTATE_RUN_SUSPENDED
         mov     [ebx + APPDATA.state], TSTATE_RUN_SUSPENDED
@@ -1054,8 +1054,8 @@ proc set_app_params stdcall,slot:dword, params:dword, flags:dword
 ; set if debuggee
         test    byte [flags], 1
         jz      .no_debug
-        mov     eax, [current_slot_idx]
-        mov     [SLOT_BASE + ebx + APPDATA.debugger_slot], eax
+        mov     eax, [current_slot]
+        mov     [SLOT_BASE + ebx + APPDATA.debugger_thread], eax
 .no_debug:
         mov     [SLOT_BASE + ebx + APPDATA.state], dl
         lea     edx, [SLOT_BASE + ebx]
@@ -1074,27 +1074,24 @@ get_curr_slot:
         mov     eax, [current_slot]
         ret
 
-pid_to_appdata:
-;Input:
-;  eax - pid of process
-;Output:
-;  eax - 0 - not found or pointer on APPDATA
+; @brief  Get pointer to APPDATA by PID
+; @param eax - TID of thread
+; @return  eax - 0 - not found or pointer on APPDATA
+pid_to_thread:
         push    ebx
         push    ecx
         mov     ebx, [thread_count]
-        shl     ebx, BSF sizeof.APPDATA ; multiply by size
         ; skip first process in the task table
-        mov     ecx, SLOT_BASE
-        add     ebx, ecx
+        mov     ecx, APPDATA_IDLE_THREAD
 .loop:
-        add     ecx, sizeof.APPDATA
         cmp     [ecx + APPDATA.state], TSTATE_FREE
         jz      @f  ;skip empty slots
         cmp     [ecx + APPDATA.tid], eax
         jz      .pid_found
 @@:
-        cmp     ecx, ebx
-        jb      .loop
+        add     ecx, sizeof.APPDATA
+        dec     ebx
+        jnz     .loop
 
         pop     ecx
         pop     ebx

kernel/trunk/core/timers.inc

@@ -48,7 +48,7 @@ endg
 
 ; This internal function acquires the lock for the global list.
 lock_timer_list:
-        mov     edx, [current_slot_idx]
+        mov     edx, [current_slot]
 @@:
         xor     eax, eax
         lock cmpxchg [timer_list_owner], edx

kernel/trunk/docs/sysfuncs.txt

@@ -4148,6 +4148,7 @@ Structure of block of data for folder entry (BDFE):
       and after archiving this bit is cleared - it can be useful
       for automatically creating of backup-archives as at writing
       this bit is usually set
+    * bit 6 (mask 0x40): this is a symbolic link (currently only set by the ext driver).
   * +4: dword: encoding, equals to field +8 in the information structure
   * +8: 4*byte: time of file creation
   * +12 = +0xC: 4*byte: date of file creation

kernel/trunk/fs/ext.inc

@@ -212,6 +212,7 @@ DIR_DIRECTORY = 2
 DIR_SYMLINK = 7
 KOS_HIDDEN = 2
 KOS_DIRECTORY = 10h
+KOS_SYMLINK = 40h
 READ_ONLY = 1
 SYMLINK_MAX_DEPTH = 40
 FAST_SYMLINK_MAX_SIZE = 60
@@ -3392,6 +3393,11 @@ ext_ReadFolder:
         stosd
         mov     eax, [esi+INODE.fileSizeHigh]
         stosd
+        movzx   eax, [esi+INODE.accessMode]
+        and     eax, TYPE_MASK
+        cmp     eax, FLAG_SYMLINK
+        jne     @f
+        or      dword [edx], KOS_SYMLINK
 @@:
         mov     esi, [esp+12]
         movzx   ecx, [esi+DIRENTRY.nameLength]

kernel/trunk/gui/background.inc

@@ -193,7 +193,8 @@ align 4
 ;--------------------------------------
 align 4
 @@:
-        mov     eax, [current_slot_idx]
+        mov     eax, [current_slot]
+        mov     eax, [eax + APPDATA.tid]
         mov     [bgrlockpid], eax
         cmp     [img_background], static_background_data
         jz      .nomem
@@ -241,7 +242,8 @@ nosb6:
         jnz     nosb7
         cmp     [bgrlock], 0
         jz      .err
-        mov     eax, [current_slot_idx]
+        mov     eax, [current_slot]
+        mov     eax, [eax + APPDATA.tid]
         cmp     [bgrlockpid], eax
         jnz     .err
         mov     eax, ecx

kernel/trunk/gui/window.inc

@@ -1997,6 +1997,8 @@ align 4
         ; esi - slot
         push    eax ecx edx esi
         xchg    eax, esi
+        shl     eax, BSF sizeof.APPDATA
+        add     eax, SLOT_BASE
         lea     ecx, [esp + 12]
         mov     edx, 1
         call    read_process_memory