337 lines
10 KiB
C
337 lines
10 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef _XE_BO_H_
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#define _XE_BO_H_
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#include <drm/ttm/ttm_tt.h>
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#include "xe_bo_types.h"
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#include "xe_macros.h"
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#include "xe_vm_types.h"
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#include "xe_vm.h"
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#define XE_DEFAULT_GTT_SIZE_MB 3072ULL /* 3GB by default */
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#define XE_BO_FLAG_USER BIT(0)
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/* The bits below need to be contiguous, or things break */
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#define XE_BO_FLAG_SYSTEM BIT(1)
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#define XE_BO_FLAG_VRAM0 BIT(2)
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#define XE_BO_FLAG_VRAM1 BIT(3)
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#define XE_BO_FLAG_VRAM_MASK (XE_BO_FLAG_VRAM0 | XE_BO_FLAG_VRAM1)
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/* -- */
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#define XE_BO_FLAG_STOLEN BIT(4)
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#define XE_BO_FLAG_VRAM_IF_DGFX(tile) (IS_DGFX(tile_to_xe(tile)) ? \
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XE_BO_FLAG_VRAM0 << (tile)->id : \
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XE_BO_FLAG_SYSTEM)
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#define XE_BO_FLAG_GGTT BIT(5)
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#define XE_BO_FLAG_IGNORE_MIN_PAGE_SIZE BIT(6)
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#define XE_BO_FLAG_PINNED BIT(7)
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#define XE_BO_FLAG_NO_RESV_EVICT BIT(8)
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#define XE_BO_FLAG_DEFER_BACKING BIT(9)
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#define XE_BO_FLAG_SCANOUT BIT(10)
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#define XE_BO_FLAG_FIXED_PLACEMENT BIT(11)
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#define XE_BO_FLAG_PAGETABLE BIT(12)
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#define XE_BO_FLAG_NEEDS_CPU_ACCESS BIT(13)
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#define XE_BO_FLAG_NEEDS_UC BIT(14)
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#define XE_BO_FLAG_NEEDS_64K BIT(15)
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#define XE_BO_FLAG_NEEDS_2M BIT(16)
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#define XE_BO_FLAG_GGTT_INVALIDATE BIT(17)
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/* this one is trigger internally only */
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#define XE_BO_FLAG_INTERNAL_TEST BIT(30)
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#define XE_BO_FLAG_INTERNAL_64K BIT(31)
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#define XE_PTE_SHIFT 12
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#define XE_PAGE_SIZE (1 << XE_PTE_SHIFT)
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#define XE_PTE_MASK (XE_PAGE_SIZE - 1)
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#define XE_PDE_SHIFT (XE_PTE_SHIFT - 3)
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#define XE_PDES (1 << XE_PDE_SHIFT)
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#define XE_PDE_MASK (XE_PDES - 1)
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#define XE_64K_PTE_SHIFT 16
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#define XE_64K_PAGE_SIZE (1 << XE_64K_PTE_SHIFT)
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#define XE_64K_PTE_MASK (XE_64K_PAGE_SIZE - 1)
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#define XE_64K_PDE_MASK (XE_PDE_MASK >> 4)
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#define XE_PL_SYSTEM TTM_PL_SYSTEM
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#define XE_PL_TT TTM_PL_TT
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#define XE_PL_VRAM0 TTM_PL_VRAM
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#define XE_PL_VRAM1 (XE_PL_VRAM0 + 1)
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#define XE_PL_STOLEN (TTM_NUM_MEM_TYPES - 1)
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#define XE_BO_PROPS_INVALID (-1)
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struct sg_table;
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struct xe_bo *xe_bo_alloc(void);
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void xe_bo_free(struct xe_bo *bo);
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struct xe_bo *___xe_bo_create_locked(struct xe_device *xe, struct xe_bo *bo,
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struct xe_tile *tile, struct dma_resv *resv,
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struct ttm_lru_bulk_move *bulk, size_t size,
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u16 cpu_caching, enum ttm_bo_type type,
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u32 flags);
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struct xe_bo *
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xe_bo_create_locked_range(struct xe_device *xe,
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struct xe_tile *tile, struct xe_vm *vm,
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size_t size, u64 start, u64 end,
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enum ttm_bo_type type, u32 flags, u64 alignment);
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struct xe_bo *xe_bo_create_locked(struct xe_device *xe, struct xe_tile *tile,
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struct xe_vm *vm, size_t size,
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enum ttm_bo_type type, u32 flags);
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struct xe_bo *xe_bo_create(struct xe_device *xe, struct xe_tile *tile,
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struct xe_vm *vm, size_t size,
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enum ttm_bo_type type, u32 flags);
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struct xe_bo *xe_bo_create_user(struct xe_device *xe, struct xe_tile *tile,
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struct xe_vm *vm, size_t size,
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u16 cpu_caching,
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u32 flags);
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struct xe_bo *xe_bo_create_pin_map(struct xe_device *xe, struct xe_tile *tile,
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struct xe_vm *vm, size_t size,
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enum ttm_bo_type type, u32 flags);
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struct xe_bo *xe_bo_create_pin_map_at(struct xe_device *xe, struct xe_tile *tile,
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struct xe_vm *vm, size_t size, u64 offset,
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enum ttm_bo_type type, u32 flags);
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struct xe_bo *xe_bo_create_pin_map_at_aligned(struct xe_device *xe,
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struct xe_tile *tile,
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struct xe_vm *vm,
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size_t size, u64 offset,
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enum ttm_bo_type type, u32 flags,
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u64 alignment);
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struct xe_bo *xe_bo_create_from_data(struct xe_device *xe, struct xe_tile *tile,
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const void *data, size_t size,
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enum ttm_bo_type type, u32 flags);
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struct xe_bo *xe_managed_bo_create_pin_map(struct xe_device *xe, struct xe_tile *tile,
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size_t size, u32 flags);
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struct xe_bo *xe_managed_bo_create_from_data(struct xe_device *xe, struct xe_tile *tile,
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const void *data, size_t size, u32 flags);
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int xe_managed_bo_reinit_in_vram(struct xe_device *xe, struct xe_tile *tile, struct xe_bo **src);
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int xe_bo_placement_for_flags(struct xe_device *xe, struct xe_bo *bo,
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u32 bo_flags);
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static inline struct xe_bo *ttm_to_xe_bo(const struct ttm_buffer_object *bo)
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{
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return container_of(bo, struct xe_bo, ttm);
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}
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static inline struct xe_bo *gem_to_xe_bo(const struct drm_gem_object *obj)
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{
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return container_of(obj, struct xe_bo, ttm.base);
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}
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#define xe_bo_device(bo) ttm_to_xe_device((bo)->ttm.bdev)
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static inline struct xe_bo *xe_bo_get(struct xe_bo *bo)
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{
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if (bo)
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drm_gem_object_get(&bo->ttm.base);
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return bo;
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}
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void xe_bo_put(struct xe_bo *bo);
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static inline void __xe_bo_unset_bulk_move(struct xe_bo *bo)
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{
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if (bo)
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ttm_bo_set_bulk_move(&bo->ttm, NULL);
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}
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static inline void xe_bo_assert_held(struct xe_bo *bo)
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{
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if (bo)
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dma_resv_assert_held((bo)->ttm.base.resv);
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}
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int xe_bo_lock(struct xe_bo *bo, bool intr);
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void xe_bo_unlock(struct xe_bo *bo);
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static inline void xe_bo_unlock_vm_held(struct xe_bo *bo)
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{
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if (bo) {
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XE_WARN_ON(bo->vm && bo->ttm.base.resv != xe_vm_resv(bo->vm));
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if (bo->vm)
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xe_vm_assert_held(bo->vm);
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else
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dma_resv_unlock(bo->ttm.base.resv);
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}
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}
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int xe_bo_pin_external(struct xe_bo *bo);
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int xe_bo_pin(struct xe_bo *bo);
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void xe_bo_unpin_external(struct xe_bo *bo);
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void xe_bo_unpin(struct xe_bo *bo);
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int xe_bo_validate(struct xe_bo *bo, struct xe_vm *vm, bool allow_res_evict);
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static inline bool xe_bo_is_pinned(struct xe_bo *bo)
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{
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return bo->ttm.pin_count;
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}
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static inline void xe_bo_unpin_map_no_vm(struct xe_bo *bo)
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{
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if (likely(bo)) {
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xe_bo_lock(bo, false);
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xe_bo_unpin(bo);
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xe_bo_unlock(bo);
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xe_bo_put(bo);
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}
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}
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bool xe_bo_is_xe_bo(struct ttm_buffer_object *bo);
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dma_addr_t __xe_bo_addr(struct xe_bo *bo, u64 offset, size_t page_size);
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dma_addr_t xe_bo_addr(struct xe_bo *bo, u64 offset, size_t page_size);
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static inline dma_addr_t
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xe_bo_main_addr(struct xe_bo *bo, size_t page_size)
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{
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return xe_bo_addr(bo, 0, page_size);
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}
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static inline u32
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xe_bo_ggtt_addr(struct xe_bo *bo)
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{
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if (XE_WARN_ON(!bo->ggtt_node))
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return 0;
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XE_WARN_ON(bo->ggtt_node->base.size > bo->size);
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XE_WARN_ON(bo->ggtt_node->base.start + bo->ggtt_node->base.size > (1ull << 32));
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return bo->ggtt_node->base.start;
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}
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int xe_bo_vmap(struct xe_bo *bo);
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void xe_bo_vunmap(struct xe_bo *bo);
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bool mem_type_is_vram(u32 mem_type);
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bool xe_bo_is_vram(struct xe_bo *bo);
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bool xe_bo_is_stolen(struct xe_bo *bo);
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bool xe_bo_is_stolen_devmem(struct xe_bo *bo);
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bool xe_bo_has_single_placement(struct xe_bo *bo);
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uint64_t vram_region_gpu_offset(struct ttm_resource *res);
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bool xe_bo_can_migrate(struct xe_bo *bo, u32 mem_type);
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int xe_bo_migrate(struct xe_bo *bo, u32 mem_type);
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int xe_bo_evict(struct xe_bo *bo, bool force_alloc);
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int xe_bo_evict_pinned(struct xe_bo *bo);
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int xe_bo_restore_pinned(struct xe_bo *bo);
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extern const struct ttm_device_funcs xe_ttm_funcs;
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extern const char *const xe_mem_type_to_name[];
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int xe_gem_create_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file);
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int xe_gem_mmap_offset_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file);
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void xe_bo_runtime_pm_release_mmap_offset(struct xe_bo *bo);
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int xe_bo_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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bool xe_bo_needs_ccs_pages(struct xe_bo *bo);
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static inline size_t xe_bo_ccs_pages_start(struct xe_bo *bo)
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{
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return PAGE_ALIGN(bo->ttm.base.size);
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}
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static inline bool xe_bo_has_pages(struct xe_bo *bo)
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{
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if ((bo->ttm.ttm && ttm_tt_is_populated(bo->ttm.ttm)) ||
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xe_bo_is_vram(bo))
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return true;
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return false;
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}
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void __xe_bo_release_dummy(struct kref *kref);
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/**
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* xe_bo_put_deferred() - Put a buffer object with delayed final freeing
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* @bo: The bo to put.
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* @deferred: List to which to add the buffer object if we cannot put, or
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* NULL if the function is to put unconditionally.
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*
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* Since the final freeing of an object includes both sleeping and (!)
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* memory allocation in the dma_resv individualization, it's not ok
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* to put an object from atomic context nor from within a held lock
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* tainted by reclaim. In such situations we want to defer the final
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* freeing until we've exited the restricting context, or in the worst
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* case to a workqueue.
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* This function either puts the object if possible without the refcount
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* reaching zero, or adds it to the @deferred list if that was not possible.
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* The caller needs to follow up with a call to xe_bo_put_commit() to actually
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* put the bo iff this function returns true. It's safe to always
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* follow up with a call to xe_bo_put_commit().
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* TODO: It's TTM that is the villain here. Perhaps TTM should add an
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* interface like this.
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*
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* Return: true if @bo was the first object put on the @freed list,
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* false otherwise.
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*/
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static inline bool
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xe_bo_put_deferred(struct xe_bo *bo, struct llist_head *deferred)
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{
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if (!deferred) {
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xe_bo_put(bo);
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return false;
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}
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if (!kref_put(&bo->ttm.base.refcount, __xe_bo_release_dummy))
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return false;
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return llist_add(&bo->freed, deferred);
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}
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void xe_bo_put_commit(struct llist_head *deferred);
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struct sg_table *xe_bo_sg(struct xe_bo *bo);
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/*
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* xe_sg_segment_size() - Provides upper limit for sg segment size.
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* @dev: device pointer
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*
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* Returns the maximum segment size for the 'struct scatterlist'
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* elements.
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*/
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static inline unsigned int xe_sg_segment_size(struct device *dev)
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{
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struct scatterlist __maybe_unused sg;
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size_t max = BIT_ULL(sizeof(sg.length) * 8) - 1;
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max = min_t(size_t, max, dma_max_mapping_size(dev));
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/*
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* The iommu_dma_map_sg() function ensures iova allocation doesn't
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* cross dma segment boundary. It does so by padding some sg elements.
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* This can cause overflow, ending up with sg->length being set to 0.
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* Avoid this by ensuring maximum segment size is half of 'max'
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* rounded down to PAGE_SIZE.
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*/
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return round_down(max / 2, PAGE_SIZE);
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}
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#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)
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/**
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* xe_bo_is_mem_type - Whether the bo currently resides in the given
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* TTM memory type
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* @bo: The bo to check.
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* @mem_type: The TTM memory type.
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*
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* Return: true iff the bo resides in @mem_type, false otherwise.
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*/
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static inline bool xe_bo_is_mem_type(struct xe_bo *bo, u32 mem_type)
|
||
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|
{
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||
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|
xe_bo_assert_held(bo);
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||
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|
return bo->ttm.resource->mem_type == mem_type;
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||
|
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}
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||
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#endif
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||
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#endif
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