diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 280 |
1 files changed, 187 insertions, 93 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index dcaf691f56b5..8e35c1ff59e3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -34,7 +34,6 @@ #include <ttm/ttm_placement.h> #include <ttm/ttm_module.h> #include <ttm/ttm_page_alloc.h> -#include <ttm/ttm_memory.h> #include <drm/drmP.h> #include <drm/amdgpu_drm.h> #include <linux/seq_file.h> @@ -51,16 +50,6 @@ static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev); static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev); -static struct amdgpu_device *amdgpu_get_adev(struct ttm_bo_device *bdev) -{ - struct amdgpu_mman *mman; - struct amdgpu_device *adev; - - mman = container_of(bdev, struct amdgpu_mman, bdev); - adev = container_of(mman, struct amdgpu_device, mman); - return adev; -} - /* * Global memory. @@ -75,7 +64,7 @@ static void amdgpu_ttm_mem_global_release(struct drm_global_reference *ref) ttm_mem_global_release(ref->object); } -int amdgpu_ttm_global_init(struct amdgpu_device *adev) +static int amdgpu_ttm_global_init(struct amdgpu_device *adev) { struct drm_global_reference *global_ref; struct amdgpu_ring *ring; @@ -150,7 +139,7 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, { struct amdgpu_device *adev; - adev = amdgpu_get_adev(bdev); + adev = amdgpu_ttm_adev(bdev); switch (type) { case TTM_PL_SYSTEM: @@ -168,7 +157,7 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, break; case TTM_PL_VRAM: /* "On-card" video ram */ - man->func = &ttm_bo_manager_func; + man->func = &amdgpu_vram_mgr_func; man->gpu_offset = adev->mc.vram_start; man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE; @@ -195,6 +184,7 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, static void amdgpu_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *placement) { + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct amdgpu_bo *abo; static struct ttm_place placements = { .fpfn = 0, @@ -213,7 +203,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo, abo = container_of(bo, struct amdgpu_bo, tbo); switch (bo->mem.mem_type) { case TTM_PL_VRAM: - if (abo->adev->mman.buffer_funcs_ring->ready == false) { + if (adev->mman.buffer_funcs_ring->ready == false) { amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU); } else { amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT); @@ -229,7 +219,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo, * allocating address space for the BO. */ abo->placements[i].lpfn = - abo->adev->mc.gtt_size >> PAGE_SHIFT; + adev->mc.gtt_size >> PAGE_SHIFT; } } break; @@ -260,63 +250,115 @@ static void amdgpu_move_null(struct ttm_buffer_object *bo, new_mem->mm_node = NULL; } -static int amdgpu_move_blit(struct ttm_buffer_object *bo, - bool evict, bool no_wait_gpu, - struct ttm_mem_reg *new_mem, - struct ttm_mem_reg *old_mem) +static int amdgpu_mm_node_addr(struct ttm_buffer_object *bo, + struct drm_mm_node *mm_node, + struct ttm_mem_reg *mem, + uint64_t *addr) { - struct amdgpu_device *adev; - struct amdgpu_ring *ring; - uint64_t old_start, new_start; - struct fence *fence; int r; - adev = amdgpu_get_adev(bo->bdev); - ring = adev->mman.buffer_funcs_ring; - - switch (old_mem->mem_type) { + switch (mem->mem_type) { case TTM_PL_TT: - r = amdgpu_ttm_bind(bo, old_mem); + r = amdgpu_ttm_bind(bo, mem); if (r) return r; case TTM_PL_VRAM: - old_start = (u64)old_mem->start << PAGE_SHIFT; - old_start += bo->bdev->man[old_mem->mem_type].gpu_offset; + *addr = mm_node->start << PAGE_SHIFT; + *addr += bo->bdev->man[mem->mem_type].gpu_offset; break; default: - DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); + DRM_ERROR("Unknown placement %d\n", mem->mem_type); return -EINVAL; } - switch (new_mem->mem_type) { - case TTM_PL_TT: - r = amdgpu_ttm_bind(bo, new_mem); - if (r) - return r; - case TTM_PL_VRAM: - new_start = (u64)new_mem->start << PAGE_SHIFT; - new_start += bo->bdev->man[new_mem->mem_type].gpu_offset; - break; - default: - DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); - return -EINVAL; - } + return 0; +} + +static int amdgpu_move_blit(struct ttm_buffer_object *bo, + bool evict, bool no_wait_gpu, + struct ttm_mem_reg *new_mem, + struct ttm_mem_reg *old_mem) +{ + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); + struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; + + struct drm_mm_node *old_mm, *new_mm; + uint64_t old_start, old_size, new_start, new_size; + unsigned long num_pages; + struct dma_fence *fence = NULL; + int r; + + BUILD_BUG_ON((PAGE_SIZE % AMDGPU_GPU_PAGE_SIZE) != 0); + if (!ring->ready) { DRM_ERROR("Trying to move memory with ring turned off.\n"); return -EINVAL; } - BUILD_BUG_ON((PAGE_SIZE % AMDGPU_GPU_PAGE_SIZE) != 0); + old_mm = old_mem->mm_node; + r = amdgpu_mm_node_addr(bo, old_mm, old_mem, &old_start); + if (r) + return r; + old_size = old_mm->size; + - r = amdgpu_copy_buffer(ring, old_start, new_start, - new_mem->num_pages * PAGE_SIZE, /* bytes */ - bo->resv, &fence, false); + new_mm = new_mem->mm_node; + r = amdgpu_mm_node_addr(bo, new_mm, new_mem, &new_start); if (r) return r; + new_size = new_mm->size; + + num_pages = new_mem->num_pages; + while (num_pages) { + unsigned long cur_pages = min(old_size, new_size); + struct dma_fence *next; + + r = amdgpu_copy_buffer(ring, old_start, new_start, + cur_pages * PAGE_SIZE, + bo->resv, &next, false); + if (r) + goto error; + + dma_fence_put(fence); + fence = next; + + num_pages -= cur_pages; + if (!num_pages) + break; + + old_size -= cur_pages; + if (!old_size) { + r = amdgpu_mm_node_addr(bo, ++old_mm, old_mem, + &old_start); + if (r) + goto error; + old_size = old_mm->size; + } else { + old_start += cur_pages * PAGE_SIZE; + } + + new_size -= cur_pages; + if (!new_size) { + r = amdgpu_mm_node_addr(bo, ++new_mm, new_mem, + &new_start); + if (r) + goto error; + + new_size = new_mm->size; + } else { + new_start += cur_pages * PAGE_SIZE; + } + } r = ttm_bo_pipeline_move(bo, fence, evict, new_mem); - fence_put(fence); + dma_fence_put(fence); + return r; + +error: + if (fence) + dma_fence_wait(fence, false); + dma_fence_put(fence); return r; } @@ -332,7 +374,7 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo, struct ttm_placement placement; int r; - adev = amdgpu_get_adev(bo->bdev); + adev = amdgpu_ttm_adev(bo->bdev); tmp_mem = *new_mem; tmp_mem.mm_node = NULL; placement.num_placement = 1; @@ -379,7 +421,7 @@ static int amdgpu_move_ram_vram(struct ttm_buffer_object *bo, struct ttm_place placements; int r; - adev = amdgpu_get_adev(bo->bdev); + adev = amdgpu_ttm_adev(bo->bdev); tmp_mem = *new_mem; tmp_mem.mm_node = NULL; placement.num_placement = 1; @@ -422,7 +464,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, if (WARN_ON_ONCE(abo->pin_count > 0)) return -EINVAL; - adev = amdgpu_get_adev(bo->bdev); + adev = amdgpu_ttm_adev(bo->bdev); /* remember the eviction */ if (evict) @@ -475,7 +517,7 @@ memcpy: static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) { struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; - struct amdgpu_device *adev = amdgpu_get_adev(bdev); + struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); mem->bus.addr = NULL; mem->bus.offset = 0; @@ -607,7 +649,7 @@ release_pages: /* prepare the sg table with the user pages */ static int amdgpu_ttm_tt_pin_userptr(struct ttm_tt *ttm) { - struct amdgpu_device *adev = amdgpu_get_adev(ttm->bdev); + struct amdgpu_device *adev = amdgpu_ttm_adev(ttm->bdev); struct amdgpu_ttm_tt *gtt = (void *)ttm; unsigned nents; int r; @@ -639,7 +681,7 @@ release_sg: static void amdgpu_ttm_tt_unpin_userptr(struct ttm_tt *ttm) { - struct amdgpu_device *adev = amdgpu_get_adev(ttm->bdev); + struct amdgpu_device *adev = amdgpu_ttm_adev(ttm->bdev); struct amdgpu_ttm_tt *gtt = (void *)ttm; struct sg_page_iter sg_iter; @@ -799,7 +841,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_bo_device *bdev, struct amdgpu_device *adev; struct amdgpu_ttm_tt *gtt; - adev = amdgpu_get_adev(bdev); + adev = amdgpu_ttm_adev(bdev); gtt = kzalloc(sizeof(struct amdgpu_ttm_tt), GFP_KERNEL); if (gtt == NULL) { @@ -843,7 +885,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_tt *ttm) return 0; } - adev = amdgpu_get_adev(ttm->bdev); + adev = amdgpu_ttm_adev(ttm->bdev); #ifdef CONFIG_SWIOTLB if (swiotlb_nr_tbl()) { @@ -889,7 +931,7 @@ static void amdgpu_ttm_tt_unpopulate(struct ttm_tt *ttm) if (slave) return; - adev = amdgpu_get_adev(ttm->bdev); + adev = amdgpu_ttm_adev(ttm->bdev); #ifdef CONFIG_SWIOTLB if (swiotlb_nr_tbl()) { @@ -1012,7 +1054,7 @@ uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm, static void amdgpu_ttm_lru_removal(struct ttm_buffer_object *tbo) { - struct amdgpu_device *adev = amdgpu_get_adev(tbo->bdev); + struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev); unsigned i, j; for (i = 0; i < AMDGPU_TTM_LRU_SIZE; ++i) { @@ -1029,7 +1071,7 @@ static void amdgpu_ttm_lru_removal(struct ttm_buffer_object *tbo) static struct amdgpu_mman_lru *amdgpu_ttm_lru(struct ttm_buffer_object *tbo) { - struct amdgpu_device *adev = amdgpu_get_adev(tbo->bdev); + struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev); unsigned log2_size = min(ilog2(tbo->num_pages), AMDGPU_TTM_LRU_SIZE - 1); @@ -1060,12 +1102,37 @@ static struct list_head *amdgpu_ttm_swap_lru_tail(struct ttm_buffer_object *tbo) return res; } +static bool amdgpu_ttm_bo_eviction_valuable(struct ttm_buffer_object *bo, + const struct ttm_place *place) +{ + if (bo->mem.mem_type == TTM_PL_VRAM && + bo->mem.start == AMDGPU_BO_INVALID_OFFSET) { + unsigned long num_pages = bo->mem.num_pages; + struct drm_mm_node *node = bo->mem.mm_node; + + /* Check each drm MM node individually */ + while (num_pages) { + if (place->fpfn < (node->start + node->size) && + !(place->lpfn && place->lpfn <= node->start)) + return true; + + num_pages -= node->size; + ++node; + } + + return false; + } + + return ttm_bo_eviction_valuable(bo, place); +} + static struct ttm_bo_driver amdgpu_bo_driver = { .ttm_tt_create = &amdgpu_ttm_tt_create, .ttm_tt_populate = &amdgpu_ttm_tt_populate, .ttm_tt_unpopulate = &amdgpu_ttm_tt_unpopulate, .invalidate_caches = &amdgpu_invalidate_caches, .init_mem_type = &amdgpu_init_mem_type, + .eviction_valuable = amdgpu_ttm_bo_eviction_valuable, .evict_flags = &amdgpu_evict_flags, .move = &amdgpu_bo_move, .verify_access = &amdgpu_verify_access, @@ -1083,6 +1150,10 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) unsigned i, j; int r; + r = amdgpu_ttm_global_init(adev); + if (r) { + return r; + } /* No others user of address space so set it to 0 */ r = ttm_bo_device_init(&adev->mman.bdev, adev->mman.bo_global_ref.ref.object, @@ -1119,7 +1190,8 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) r = amdgpu_bo_create(adev, 256 * 1024, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM, - AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, &adev->stollen_vga_memory); if (r) { return r; @@ -1247,7 +1319,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t dst_offset, uint32_t byte_count, struct reservation_object *resv, - struct fence **fence, bool direct_submit) + struct dma_fence **fence, bool direct_submit) { struct amdgpu_device *adev = ring->adev; struct amdgpu_job *job; @@ -1294,7 +1366,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, if (direct_submit) { r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, NULL, NULL, fence); - job->fence = fence_get(*fence); + job->fence = dma_fence_get(*fence); if (r) DRM_ERROR("Error scheduling IBs (%d)\n", r); amdgpu_job_free(job); @@ -1313,28 +1385,40 @@ error_free: } int amdgpu_fill_buffer(struct amdgpu_bo *bo, - uint32_t src_data, - struct reservation_object *resv, - struct fence **fence) + uint32_t src_data, + struct reservation_object *resv, + struct dma_fence **fence) { - struct amdgpu_device *adev = bo->adev; - struct amdgpu_job *job; + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); + uint32_t max_bytes = adev->mman.buffer_funcs->fill_max_bytes; struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; - uint32_t max_bytes, byte_count; - uint64_t dst_offset; + struct drm_mm_node *mm_node; + unsigned long num_pages; unsigned int num_loops, num_dw; - unsigned int i; + + struct amdgpu_job *job; int r; - byte_count = bo->tbo.num_pages << PAGE_SHIFT; - max_bytes = adev->mman.buffer_funcs->fill_max_bytes; - num_loops = DIV_ROUND_UP(byte_count, max_bytes); + if (!ring->ready) { + DRM_ERROR("Trying to clear memory with ring turned off.\n"); + return -EINVAL; + } + + num_pages = bo->tbo.num_pages; + mm_node = bo->tbo.mem.mm_node; + num_loops = 0; + while (num_pages) { + uint32_t byte_count = mm_node->size << PAGE_SHIFT; + + num_loops += DIV_ROUND_UP(byte_count, max_bytes); + num_pages -= mm_node->size; + ++mm_node; + } num_dw = num_loops * adev->mman.buffer_funcs->fill_num_dw; /* for IB padding */ - while (num_dw & 0x7) - num_dw++; + num_dw += 64; r = amdgpu_job_alloc_with_ib(adev, num_dw * 4, &job); if (r) @@ -1342,28 +1426,43 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo, if (resv) { r = amdgpu_sync_resv(adev, &job->sync, resv, - AMDGPU_FENCE_OWNER_UNDEFINED); + AMDGPU_FENCE_OWNER_UNDEFINED); if (r) { DRM_ERROR("sync failed (%d).\n", r); goto error_free; } } - dst_offset = bo->tbo.mem.start << PAGE_SHIFT; - for (i = 0; i < num_loops; i++) { - uint32_t cur_size_in_bytes = min(byte_count, max_bytes); + num_pages = bo->tbo.num_pages; + mm_node = bo->tbo.mem.mm_node; - amdgpu_emit_fill_buffer(adev, &job->ibs[0], src_data, - dst_offset, cur_size_in_bytes); + while (num_pages) { + uint32_t byte_count = mm_node->size << PAGE_SHIFT; + uint64_t dst_addr; - dst_offset += cur_size_in_bytes; - byte_count -= cur_size_in_bytes; + r = amdgpu_mm_node_addr(&bo->tbo, mm_node, + &bo->tbo.mem, &dst_addr); + if (r) + return r; + + while (byte_count) { + uint32_t cur_size_in_bytes = min(byte_count, max_bytes); + + amdgpu_emit_fill_buffer(adev, &job->ibs[0], src_data, + dst_addr, cur_size_in_bytes); + + dst_addr += cur_size_in_bytes; + byte_count -= cur_size_in_bytes; + } + + num_pages -= mm_node->size; + ++mm_node; } amdgpu_ring_pad_ib(ring, &job->ibs[0]); WARN_ON(job->ibs[0].length_dw > num_dw); r = amdgpu_job_submit(job, ring, &adev->mman.entity, - AMDGPU_FENCE_OWNER_UNDEFINED, fence); + AMDGPU_FENCE_OWNER_UNDEFINED, fence); if (r) goto error_free; @@ -1412,7 +1511,7 @@ static const struct drm_info_list amdgpu_ttm_debugfs_list[] = { static ssize_t amdgpu_ttm_vram_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { - struct amdgpu_device *adev = f->f_inode->i_private; + struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; @@ -1456,7 +1555,7 @@ static const struct file_operations amdgpu_ttm_vram_fops = { static ssize_t amdgpu_ttm_gtt_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { - struct amdgpu_device *adev = f->f_inode->i_private; + struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; @@ -1554,8 +1653,3 @@ static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev) #endif } - -u64 amdgpu_ttm_get_gtt_mem_size(struct amdgpu_device *adev) -{ - return ttm_get_kernel_zone_memory_size(adev->mman.mem_global_ref.object); -} |