530 lines
13 KiB
C
530 lines
13 KiB
C
/*
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* Copyright (c) 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Chris Wilson <chris@chris-wilson.co.uk>
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*
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*/
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#ifndef KGEM_H
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#define KGEM_H
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#include "compiler.h"
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#include <linux/list.h>
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//#include <stdarg.h>
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#include <i915_drm.h>
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#if DEBUG_KGEM
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#define DBG_HDR(x) ErrorF x
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#else
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#define DBG_HDR(x)
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#endif
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struct kgem_bo {
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struct kgem_bo *proxy;
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struct list_head list;
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struct list_head request;
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struct list_head vma;
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void *map;
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uint32_t gaddr;
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#define IS_CPU_MAP(ptr) ((uintptr_t)(ptr) & 1)
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#define IS_GTT_MAP(ptr) (ptr && ((uintptr_t)(ptr) & 1) == 0)
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struct kgem_request *rq;
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struct drm_i915_gem_exec_object2 *exec;
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struct kgem_bo_binding {
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struct kgem_bo_binding *next;
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uint32_t format;
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uint16_t offset;
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} binding;
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uint32_t unique_id;
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uint32_t refcnt;
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uint32_t handle;
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uint32_t presumed_offset;
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uint32_t delta;
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union {
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struct {
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uint32_t count:27;
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uint32_t bucket:5;
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#define NUM_CACHE_BUCKETS 16
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#define MAX_CACHE_SIZE (1 << (NUM_CACHE_BUCKETS+12))
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} pages;
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uint32_t bytes;
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} size;
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uint32_t pitch : 18; /* max 128k */
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uint32_t tiling : 2;
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uint32_t reusable : 1;
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uint32_t dirty : 1;
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uint32_t domain : 2;
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uint32_t needs_flush : 1;
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uint32_t vmap : 1;
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uint32_t io : 1;
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uint32_t flush : 1;
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uint32_t scanout : 1;
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uint32_t sync : 1;
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uint32_t purged : 1;
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};
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#define DOMAIN_NONE 0
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#define DOMAIN_CPU 1
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#define DOMAIN_GTT 2
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#define DOMAIN_GPU 3
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struct kgem_request {
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struct list_head list;
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struct kgem_bo *bo;
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struct list_head buffers;
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};
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enum {
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MAP_GTT = 0,
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MAP_CPU,
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NUM_MAP_TYPES,
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};
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struct kgem {
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int fd;
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int wedged;
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int gen;
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uint32_t unique_id;
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enum kgem_mode {
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/* order matches I915_EXEC_RING ordering */
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KGEM_NONE = 0,
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KGEM_RENDER,
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KGEM_BSD,
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KGEM_BLT,
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} mode, ring;
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struct list_head flushing;
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struct list_head large;
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struct list_head active[NUM_CACHE_BUCKETS][3];
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struct list_head inactive[NUM_CACHE_BUCKETS];
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struct list_head partial;
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struct list_head requests;
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struct kgem_request *next_request;
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struct {
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struct list_head inactive[NUM_CACHE_BUCKETS];
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int16_t count;
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} vma[NUM_MAP_TYPES];
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uint16_t nbatch;
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uint16_t surface;
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uint16_t nexec;
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uint16_t nreloc;
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uint16_t nfence;
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uint16_t max_batch_size;
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uint32_t flush:1;
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uint32_t sync:1;
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uint32_t need_expire:1;
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uint32_t need_purge:1;
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uint32_t need_retire:1;
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uint32_t scanout:1;
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uint32_t flush_now:1;
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uint32_t busy:1;
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uint32_t has_vmap :1;
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uint32_t has_relaxed_fencing :1;
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uint32_t has_semaphores :1;
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uint32_t has_llc :1;
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uint32_t has_cpu_bo :1;
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uint16_t fence_max;
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uint16_t half_cpu_cache_pages;
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uint32_t aperture_total, aperture_high, aperture_low, aperture_mappable;
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uint32_t aperture, aperture_fenced;
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uint32_t min_alignment;
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uint32_t max_upload_tile_size, max_copy_tile_size;
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uint32_t max_gpu_size, max_cpu_size;
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uint32_t large_object_size, max_object_size;
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uint32_t partial_buffer_size;
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// void (*context_switch)(struct kgem *kgem, int new_mode);
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void (*retire)(struct kgem *kgem);
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uint32_t *batch;
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uint32_t *batch_ptr;
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int batch_idx;
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struct drm_i915_gem_object *batch_obj;
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struct drm_i915_gem_exec_object2 exec[256];
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struct drm_i915_gem_relocation_entry reloc[384];
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};
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#define KGEM_BATCH_RESERVED 1
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#define KGEM_RELOC_RESERVED 4
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#define KGEM_EXEC_RESERVED 1
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#define KGEM_BATCH_SIZE(K) ((K)->max_batch_size-KGEM_BATCH_RESERVED)
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#define KGEM_EXEC_SIZE(K) (int)(ARRAY_SIZE((K)->exec)-KGEM_EXEC_RESERVED)
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#define KGEM_RELOC_SIZE(K) (int)(ARRAY_SIZE((K)->reloc)-KGEM_RELOC_RESERVED)
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void kgem_init(struct kgem *kgem, int gen);
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void kgem_reset(struct kgem *kgem);
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struct kgem_bo *kgem_create_map(struct kgem *kgem,
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void *ptr, uint32_t size,
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bool read_only);
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struct kgem_bo *kgem_create_for_name(struct kgem *kgem, uint32_t name);
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struct kgem_bo *kgem_create_linear(struct kgem *kgem, int size);
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struct kgem_bo *kgem_create_proxy(struct kgem_bo *target,
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int offset, int length);
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//struct kgem_bo *kgem_upload_source_image(struct kgem *kgem,
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// const void *data,
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// BoxPtr box,
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// int stride, int bpp);
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int kgem_choose_tiling(struct kgem *kgem,
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int tiling, int width, int height, int bpp);
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unsigned kgem_can_create_2d(struct kgem *kgem, int width, int height, int depth);
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#define KGEM_CAN_CREATE_GPU 0x1
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#define KGEM_CAN_CREATE_CPU 0x2
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#define KGEM_CAN_CREATE_LARGE 0x4
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struct kgem_bo *
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kgem_replace_bo(struct kgem *kgem,
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struct kgem_bo *src,
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uint32_t width,
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uint32_t height,
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uint32_t pitch,
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uint32_t bpp);
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enum {
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CREATE_EXACT = 0x1,
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CREATE_INACTIVE = 0x2,
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CREATE_CPU_MAP = 0x4,
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CREATE_GTT_MAP = 0x8,
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CREATE_SCANOUT = 0x10,
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};
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struct kgem_bo *kgem_create_2d(struct kgem *kgem,
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int width,
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int height,
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int bpp,
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int tiling,
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uint32_t flags);
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uint32_t kgem_bo_get_binding(struct kgem_bo *bo, uint32_t format);
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void kgem_bo_set_binding(struct kgem_bo *bo, uint32_t format, uint16_t offset);
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bool kgem_retire(struct kgem *kgem);
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void _kgem_submit(struct kgem *kgem);
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static inline void kgem_submit(struct kgem *kgem)
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{
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if (kgem->nbatch)
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_kgem_submit(kgem);
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}
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/*
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static inline void kgem_bo_submit(struct kgem *kgem, struct kgem_bo *bo)
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{
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if (bo->exec)
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_kgem_submit(kgem);
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}
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void __kgem_flush(struct kgem *kgem, struct kgem_bo *bo);
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static inline void kgem_bo_flush(struct kgem *kgem, struct kgem_bo *bo)
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{
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kgem_bo_submit(kgem, bo);
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if (!bo->needs_flush)
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return;
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__kgem_flush(kgem, bo);
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bo->needs_flush = false;
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}
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*/
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static inline struct kgem_bo *kgem_bo_reference(struct kgem_bo *bo)
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{
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bo->refcnt++;
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return bo;
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}
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void _kgem_bo_destroy(struct kgem *kgem, struct kgem_bo *bo);
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static inline void kgem_bo_destroy(struct kgem *kgem, struct kgem_bo *bo)
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{
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assert(bo->refcnt);
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if (--bo->refcnt == 0)
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_kgem_bo_destroy(kgem, bo);
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}
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void kgem_clear_dirty(struct kgem *kgem);
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static inline void kgem_set_mode(struct kgem *kgem, enum kgem_mode mode)
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{
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assert(!kgem->wedged);
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#if DEBUG_FLUSH_BATCH
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kgem_submit(kgem);
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#endif
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if (kgem->mode == mode)
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return;
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// kgem->context_switch(kgem, mode);
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kgem->mode = mode;
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}
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static inline void _kgem_set_mode(struct kgem *kgem, enum kgem_mode mode)
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{
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assert(kgem->mode == KGEM_NONE);
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// kgem->context_switch(kgem, mode);
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kgem->mode = mode;
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}
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static inline bool kgem_check_batch(struct kgem *kgem, int num_dwords)
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{
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return likely(kgem->nbatch + num_dwords + KGEM_BATCH_RESERVED <= kgem->surface);
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}
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static inline bool kgem_check_reloc(struct kgem *kgem, int n)
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{
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return likely(kgem->nreloc + n <= KGEM_RELOC_SIZE(kgem));
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}
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static inline bool kgem_check_exec(struct kgem *kgem, int n)
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{
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return likely(kgem->nexec + n <= KGEM_EXEC_SIZE(kgem));
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}
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static inline bool kgem_check_batch_with_surfaces(struct kgem *kgem,
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int num_dwords,
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int num_surfaces)
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{
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return (int)(kgem->nbatch + num_dwords + KGEM_BATCH_RESERVED) <= (int)(kgem->surface - num_surfaces*8) &&
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kgem_check_reloc(kgem, num_surfaces);
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}
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static inline uint32_t *kgem_get_batch(struct kgem *kgem, int num_dwords)
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{
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if (!kgem_check_batch(kgem, num_dwords))
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_kgem_submit(kgem);
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return kgem->batch + kgem->nbatch;
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}
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static inline void kgem_advance_batch(struct kgem *kgem, int num_dwords)
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{
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kgem->nbatch += num_dwords;
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}
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bool kgem_check_bo(struct kgem *kgem, ...) __attribute__((sentinel(0)));
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bool kgem_check_bo_fenced(struct kgem *kgem, ...) __attribute__((sentinel(0)));
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void _kgem_add_bo(struct kgem *kgem, struct kgem_bo *bo);
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static inline void kgem_add_bo(struct kgem *kgem, struct kgem_bo *bo)
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{
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if (bo->proxy)
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bo = bo->proxy;
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if (bo->exec == NULL)
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_kgem_add_bo(kgem, bo);
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}
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#define KGEM_RELOC_FENCED 0x8000
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uint32_t kgem_add_reloc(struct kgem *kgem,
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uint32_t pos,
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struct kgem_bo *bo,
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uint32_t read_write_domains,
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uint32_t delta);
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void *kgem_bo_map(struct kgem *kgem, struct kgem_bo *bo);
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void *kgem_bo_map__debug(struct kgem *kgem, struct kgem_bo *bo);
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void *kgem_bo_map__cpu(struct kgem *kgem, struct kgem_bo *bo);
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void kgem_bo_sync__cpu(struct kgem *kgem, struct kgem_bo *bo);
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uint32_t kgem_bo_flink(struct kgem *kgem, struct kgem_bo *bo);
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Bool kgem_bo_write(struct kgem *kgem, struct kgem_bo *bo,
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const void *data, int length);
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int kgem_bo_fenced_size(struct kgem *kgem, struct kgem_bo *bo);
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void kgem_get_tile_size(struct kgem *kgem, int tiling,
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int *tile_width, int *tile_height, int *tile_size);
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static inline int kgem_bo_size(struct kgem_bo *bo)
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{
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assert(!(bo->proxy && bo->io));
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return PAGE_SIZE * bo->size.pages.count;
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}
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static inline int kgem_buffer_size(struct kgem_bo *bo)
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{
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assert(bo->proxy && bo->io);
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return bo->size.bytes;
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}
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/*
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static inline bool kgem_bo_blt_pitch_is_ok(struct kgem *kgem,
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struct kgem_bo *bo)
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{
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int pitch = bo->pitch;
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if (kgem->gen >= 40 && bo->tiling)
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pitch /= 4;
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if (pitch > MAXSHORT) {
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DBG(("%s: can not blt to handle=%d, adjusted pitch=%d\n",
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__FUNCTION__, pitch));
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return false;
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}
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return true;
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}
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static inline bool kgem_bo_can_blt(struct kgem *kgem,
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struct kgem_bo *bo)
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{
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if (bo->tiling == I915_TILING_Y) {
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DBG(("%s: can not blt to handle=%d, tiling=Y\n",
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__FUNCTION__, bo->handle));
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return false;
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}
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return kgem_bo_blt_pitch_is_ok(kgem, bo);
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}
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*/
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static inline bool kgem_bo_is_mappable(struct kgem *kgem,
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struct kgem_bo *bo)
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{
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DBG_HDR(("%s: domain=%d, offset: %d size: %d\n",
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__FUNCTION__, bo->domain, bo->presumed_offset, kgem_bo_size(bo)));
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if (bo->domain == DOMAIN_GTT)
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return true;
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if (IS_GTT_MAP(bo->map))
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return true;
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if (kgem->gen < 40 && bo->tiling &&
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bo->presumed_offset & (kgem_bo_fenced_size(kgem, bo) - 1))
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return false;
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if (!bo->presumed_offset)
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return kgem_bo_size(bo) <= kgem->aperture_mappable / 4;
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return bo->presumed_offset + kgem_bo_size(bo) <= kgem->aperture_mappable;
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}
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static inline bool kgem_bo_mapped(struct kgem_bo *bo)
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{
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DBG_HDR(("%s: map=%p, tiling=%d\n", __FUNCTION__, bo->map, bo->tiling));
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if (bo->map == NULL)
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return false;
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return IS_CPU_MAP(bo->map) == !bo->tiling;
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}
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static inline bool kgem_bo_is_busy(struct kgem_bo *bo)
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{
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DBG_HDR(("%s: domain: %d exec? %d, rq? %d\n",
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__FUNCTION__, bo->domain, bo->exec != NULL, bo->rq != NULL));
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assert(bo->proxy == NULL);
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return bo->rq;
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}
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/*
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static inline bool kgem_bo_map_will_stall(struct kgem *kgem, struct kgem_bo *bo)
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{
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DBG(("%s? handle=%d, domain=%d, offset=%x, size=%x\n",
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__FUNCTION__, bo->handle,
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bo->domain, bo->presumed_offset, bo->size));
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if (!kgem_bo_is_mappable(kgem, bo))
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return true;
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if (kgem->wedged)
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return false;
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if (kgem_bo_is_busy(bo))
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return true;
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if (bo->presumed_offset == 0)
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return !list_is_empty(&kgem->requests);
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return false;
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}
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*/
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static inline bool kgem_bo_is_dirty(struct kgem_bo *bo)
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{
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if (bo == NULL)
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return FALSE;
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return bo->dirty;
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}
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static inline void kgem_bo_mark_dirty(struct kgem_bo *bo)
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{
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DBG_HDR(("%s: handle=%d\n", __FUNCTION__, bo->handle));
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bo->dirty = true;
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}
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void kgem_sync(struct kgem *kgem);
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#define KGEM_BUFFER_WRITE 0x1
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#define KGEM_BUFFER_INPLACE 0x2
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#define KGEM_BUFFER_LAST 0x4
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#define KGEM_BUFFER_WRITE_INPLACE (KGEM_BUFFER_WRITE | KGEM_BUFFER_INPLACE)
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struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
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uint32_t size, uint32_t flags,
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void **ret);
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struct kgem_bo *kgem_create_buffer_2d(struct kgem *kgem,
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int width, int height, int bpp,
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uint32_t flags,
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void **ret);
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void kgem_buffer_read_sync(struct kgem *kgem, struct kgem_bo *bo);
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void kgem_throttle(struct kgem *kgem);
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#define MAX_INACTIVE_TIME 10
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bool kgem_expire_cache(struct kgem *kgem);
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void kgem_purge_cache(struct kgem *kgem);
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void kgem_cleanup_cache(struct kgem *kgem);
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#if HAS_EXTRA_DEBUG
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void __kgem_batch_debug(struct kgem *kgem, uint32_t nbatch);
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#else
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static inline void __kgem_batch_debug(struct kgem *kgem, uint32_t nbatch)
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{
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(void)kgem;
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(void)nbatch;
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}
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#endif
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#undef DBG_HDR
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u32 get_buffer_offset(uint32_t handle);
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#endif /* KGEM_H */
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