From 1b582176bed1299ffd958c1485f103a178ce8291 Mon Sep 17 00:00:00 2001 From: "Artem Jerdev (art_zh)" Date: Fri, 25 Jun 2010 17:44:14 +0000 Subject: [PATCH] basic embedded features git-svn-id: svn://kolibrios.org@1507 a494cfbc-eb01-0410-851d-a64ba20cac60 --- .../branches/Kolibri-A/trunk/bus/pci/PCIe.inc | 1 - .../Kolibri-A/trunk/bus/pci/pci32.inc | 36 ++++++++----- kernel/branches/Kolibri-A/trunk/const.inc | 4 ++ .../branches/Kolibri-A/trunk/core/memory.inc | 50 +++++++------------ kernel/branches/Kolibri-A/trunk/init.inc | 48 ------------------ kernel/branches/Kolibri-A/trunk/kernel.asm | 11 ++-- kernel/branches/Kolibri-A/trunk/kernel32.inc | 2 +- 7 files changed, 54 insertions(+), 98 deletions(-) diff --git a/kernel/branches/Kolibri-A/trunk/bus/pci/PCIe.inc b/kernel/branches/Kolibri-A/trunk/bus/pci/PCIe.inc index 4284b18c49..f9d02a6be9 100644 --- a/kernel/branches/Kolibri-A/trunk/bus/pci/PCIe.inc +++ b/kernel/branches/Kolibri-A/trunk/bus/pci/PCIe.inc @@ -28,7 +28,6 @@ $Revision: 1463 $ ; ;*************************************************************************** -PCIe_CONFIG_SPACE equ 0xF0000000 ; to be moved to const.inc mmio_pcie_cfg_addr dd 0x0 ; intel pcie space may be defined here mmio_pcie_cfg_lim dd 0x0 ; upper pcie space address diff --git a/kernel/branches/Kolibri-A/trunk/bus/pci/pci32.inc b/kernel/branches/Kolibri-A/trunk/bus/pci/pci32.inc index a5b1179203..3100e18e9b 100644 --- a/kernel/branches/Kolibri-A/trunk/bus/pci/pci32.inc +++ b/kernel/branches/Kolibri-A/trunk/bus/pci/pci32.inc @@ -8,11 +8,13 @@ ;; ;; ;; 32 bit PCI driver code ;; ;; ;; +;; Version 0.4 February 2nd, 2010 ;; ;; Version 0.3 April 9, 2007 ;; ;; Version 0.2 December 21st, 2002 ;; ;; ;; ;; Author: Victor Prodan, victorprodan@yahoo.com ;; ;; Mihailov Ilia, ghost.nsk@gmail.com ;; +;; Artem Jerdev, kolibri@jerdev.co.uk ;; ;; Credits: ;; ;; Ralf Brown ;; ;; Mike Hibbett, mikeh@oceanfree.net ;; @@ -30,7 +32,7 @@ $Revision$ ; Description ; entry point for system PCI calls ;*************************************************************************** -;mmio_pci_addr equ 0x400 ; set actual PCI address here to activate user-MMIO +mmio_pci_addr dw 0x400 ; default PCI device bdf-address align 4 @@ -76,14 +78,13 @@ pci_fn_3: cmp al,10 jz pci_write_reg ;dword -if defined mmio_pci_addr cmp al,11 ; user-level MMIO functions jz pci_mmio_init cmp al,12 jz pci_mmio_map cmp al,13 jz pci_mmio_unmap -end if + no_pci_access_for_applications: @@ -384,14 +385,14 @@ if defined mmio_pci_addr ; must be set above ; ; Description ; IN: bx = device's PCI bus address (bbbbbbbbdddddfff) -; Returns eax = user heap space available (bytes) +; Returns eax = phys. address of user-accessible DMA block ; Error codes ; eax = -1 : PCI user access blocked, ; eax = -2 : device not registered for uMMIO service ; eax = -3 : user heap initialization failure ;*************************************************************************** pci_mmio_init: - cmp bx, mmio_pci_addr + cmp bx, [mmio_pci_addr] jz @f mov eax,-2 ret @@ -399,6 +400,7 @@ pci_mmio_init: call init_heap ; (if not initialized yet) or eax,eax jz @f + mov eax, [UserDMAaddr] ret @@: mov eax,-3 @@ -412,10 +414,9 @@ pci_mmio_init: ; Description ; maps a block of PCI memory to user-accessible linear address ; -; WARNING! This VERY EXPERIMENTAL service is for one chosen PCI device only! -; The target device address should be set in kernel var mmio_pci_addr ; -; IN: ah = BAR#; +; IN: ah = BAR#; or +; IN: ah = 0xDA for DMA-mapping requests; ; IN: ebx = block size (bytes); ; IN: ecx = offset in MMIO block (in 4K-pages, to avoid misaligned pages); ; @@ -432,11 +433,20 @@ pci_mmio_init: pci_mmio_map: and edx,0x0ffff + cmp ah, 0xDA + jz .dma_map cmp ah,6 jc .bar_0_5 jz .bar_rom mov eax,-2 ret + +.dma_map: + push ecx + mov ecx,ebx + mov eax,[UserDMAaddr] + jmp .allocate_block + .bar_rom: mov ah, 8 ; bar6 = Expansion ROM base address .bar_0_5: @@ -448,7 +458,7 @@ pci_mmio_map: shl bl, 1 shl bl, 1 add bl, 0x10 ; now bl = BAR offset in PCI config. space - mov ax, mmio_pci_addr + mov ax, [mmio_pci_addr] mov bh, al ; bh = dddddfff mov al, 2 ; al : DW to read call pci_read_reg @@ -465,7 +475,9 @@ pci_mmio_map: pop ecx ; ecx = block size, bytes (expanded to whole page) mov ebx, ecx ; user_alloc destroys eax, ecx, edx, but saves ebx and eax, 0xFFFFFFF0 - push eax ; store MMIO physical address + keep 2DWords in the stack + +.allocate_block: + push eax ; store MMIO physical address + keep the stack 2x4b deep stdcall user_alloc, ecx or eax, eax jnz mmio_map_over @@ -484,9 +496,7 @@ mmio_map_over: pop edx ; edx = MMIO shift (pages) shl edx, 12 ; edx = MMIO shift (bytes) add eax, edx ; eax = uMMIO physical address - or eax, PG_SHARED - or eax, PG_UW - or eax, PG_NOCACHE + or eax, (PG_SHARED+PG_UW+PG_NOCACHE) mov edi, ebx call commit_pages mov eax, edi diff --git a/kernel/branches/Kolibri-A/trunk/const.inc b/kernel/branches/Kolibri-A/trunk/const.inc index 5f9f66769a..783927d070 100644 --- a/kernel/branches/Kolibri-A/trunk/const.inc +++ b/kernel/branches/Kolibri-A/trunk/const.inc @@ -253,6 +253,7 @@ BytesPerScanLine equ (OS_BASE+0x000FE08) SCR_MODE equ (OS_BASE+0x000FE0C) LFBAddress equ (OS_BASE+0x000FE80) +UserDMAaddr equ (OS_BASE+0x000FE84) BTN_ADDR equ (OS_BASE+0x000FE88) MEM_AMOUNT equ (OS_BASE+0x000FE8C) @@ -322,6 +323,9 @@ end virtual HEAP_BASE equ (OS_BASE+0x0800000) HEAP_MIN_SIZE equ 0x01000000 +PCIe_CONFIG_SPACE equ 0xF0000000 +USER_DMA_BUFFER equ 0xFD000000 ; linear addr. + page_tabs equ 0xFDC00000 app_page_tabs equ 0xFDC00000 kernel_tabs equ (page_tabs+ (OS_BASE shr 10)) ;0xFDE00000 diff --git a/kernel/branches/Kolibri-A/trunk/core/memory.inc b/kernel/branches/Kolibri-A/trunk/core/memory.inc index 78f9a137b1..3e33541099 100644 --- a/kernel/branches/Kolibri-A/trunk/core/memory.inc +++ b/kernel/branches/Kolibri-A/trunk/core/memory.inc @@ -373,9 +373,7 @@ proc init_LFB mov [pg_count], edi shr edi, 10 - bt [cpu_caps], CAPS_PSE - jnc .map_page_tables - or esi, PG_LARGE+PG_UW + or esi, PG_GLOBAL+PG_LARGE+PG_UW mov edx, sys_pgdir+(LFB_BASE shr 20) @@: mov [edx], esi @@ -384,39 +382,29 @@ proc init_LFB dec edi jnz @B - bt [cpu_caps], CAPS_PGE - jnc @F - or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL -@@: mov dword [LFBAddress], LFB_BASE mov eax, cr3 ;flush TLB mov cr3, eax ret +endp -.map_page_tables: - -@@: - call alloc_page - stdcall map_page_table, edx, eax - add edx, 0x00400000 - dec edi - jnz @B - - mov eax, [LFBAddress] - mov edi, page_tabs + (LFB_BASE shr 10) - or eax, PG_UW - mov ecx, [pg_count] - cld -@@: - stosd - add eax, 0x1000 - dec ecx - jnz @B - - mov dword [LFBAddress], LFB_BASE - mov eax, cr3 ;flush TLB - mov cr3, eax - +align 4 +proc init_userDMA + stdcall alloc_pages, 4096 ; 16M <<<<<<<<<<+++++++++++++++++++++++++++++++++ + add eax, 0x007FFFF0 + and eax, 0xFF800000 ; align at 8M boundary + mov [UserDMAaddr], eax + or eax, PG_UW + PG_NOCACHE + mov ebx, USER_DMA_BUFFER + mov ecx, 2048 ; 8M, to be sure + call commit_pages + mov eax, [UserDMAaddr] + or eax, PG_LARGE + PG_UW + PG_NOCACHE + mov ebx, sys_pgdir + (USER_DMA_BUFFER shr 20) + mov [ebx], eax + add ebx, 4 + add eax, 0x00400000 + mov [ebx], eax ret endp diff --git a/kernel/branches/Kolibri-A/trunk/init.inc b/kernel/branches/Kolibri-A/trunk/init.inc index 54ba0d6e40..f340571625 100644 --- a/kernel/branches/Kolibri-A/trunk/init.inc +++ b/kernel/branches/Kolibri-A/trunk/init.inc @@ -12,38 +12,6 @@ MEM_WB equ 6 ;write-back memory MEM_WC equ 1 ;write combined memory MEM_UC equ 0 ;uncached memory -align 4 -proc mem_test -; if we have BIOS with fn E820, skip the test - cmp dword [BOOT_VAR-OS_BASE + 0x9100], 0 - jnz .ret - - mov eax, cr0 - and eax, not (CR0_CD+CR0_NW) - or eax, CR0_CD ;disable caching - mov cr0, eax - wbinvd ;invalidate cache - - xor edi, edi - mov ebx, 'TEST' -@@: - add edi, 0x100000 - xchg ebx, dword [edi] - cmp dword [edi], 'TEST' - xchg ebx, dword [edi] - je @b - - and eax, not (CR0_CD+CR0_NW) ;enable caching - mov cr0, eax - inc dword [BOOT_VAR-OS_BASE + 0x9100] - xor eax, eax - mov [BOOT_VAR-OS_BASE + 0x9104], eax - mov [BOOT_VAR-OS_BASE + 0x9108], eax - mov [BOOT_VAR-OS_BASE + 0x910C], edi - mov [BOOT_VAR-OS_BASE + 0x9110], eax -.ret: - ret -endp align 4 proc init_mem @@ -129,8 +97,6 @@ proc init_mem rep stosd mov edx, (sys_pgdir-OS_BASE)+ 0x800; (OS_BASE shr 20) - bt [cpu_caps-OS_BASE], CAPS_PSE - jnc .no_PSE mov ebx, cr4 or ebx, CR4_PSE @@ -142,20 +108,6 @@ proc init_mem add edx, 4 mov edi, [tmp_page_tabs] - jmp .map_kernel_heap ; new kernel fits to the first 4Mb - nothing to do with ".map_low" -.no_PSE: - mov eax, PG_SW - mov ecx, [tmp_page_tabs] - shr ecx, 12 -.map_low: - mov edi, [tmp_page_tabs] -@@: ; - stosd - add eax, 0x1000 - dec ecx - jnz @B - -.map_kernel_heap: mov ecx, [pg_data.kernel_tables-OS_BASE] shl ecx, 10 xor eax, eax diff --git a/kernel/branches/Kolibri-A/trunk/kernel.asm b/kernel/branches/Kolibri-A/trunk/kernel.asm index 23912fce5a..7f79670a49 100644 --- a/kernel/branches/Kolibri-A/trunk/kernel.asm +++ b/kernel/branches/Kolibri-A/trunk/kernel.asm @@ -1,6 +1,6 @@ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; -;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. +;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;; PROGRAMMING: ;; Ivan Poddubny ;; Marat Zakiyanov (Mario79) @@ -19,6 +19,7 @@ ;; SPraid (simba) ;; Hidnplayr ;; Alexey Teplov () +;; Artem Jerdev (art_zh) ;; ;; Data in this file was originally part of MenuetOS project which is ;; distributed under the terms of GNU GPL. It is modified and redistributed as @@ -249,7 +250,6 @@ B32: call init_BIOS32 ; MEMORY MODEL - call mem_test call init_mem call init_page_map @@ -850,6 +850,9 @@ end if call set_network_conf no_st_network: + call init_userDMA ; <<<<<<<<< ================ core/memory.inc ======================================== + call pci_ext_config ; <<<<<<<<< bus/pci/pcie.inc + ; LOAD FIRST APPLICATION cli @@ -1035,8 +1038,8 @@ boot_log: align 32 osloop: call [draw_pointer] - call window_check_events - call mouse_check_events + call window_check_events + call mouse_check_events call checkmisc call checkVga_N13 call stack_handler diff --git a/kernel/branches/Kolibri-A/trunk/kernel32.inc b/kernel/branches/Kolibri-A/trunk/kernel32.inc index b0707c178c..5a84bb29cd 100644 --- a/kernel/branches/Kolibri-A/trunk/kernel32.inc +++ b/kernel/branches/Kolibri-A/trunk/kernel32.inc @@ -268,8 +268,8 @@ include "gui/mouse.inc" include "gui/skincode.inc" ; Pci functions - include "bus/pci/pci32.inc" +include "bus/pci/pcie.inc" ; Floppy drive controller