From 67003a15b736988bcb0c5f871be353d702a862ba Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Wed, 12 Oct 2016 14:46:26 +0200 Subject: [PATCH] drm/amdgpu: generalize page table level MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit No functional change, but the base for multi level page tables. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 88 +++++++++++++------------- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 10 +-- 3 files changed, 50 insertions(+), 50 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index e68a3a511847..2e11b48d92e7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -872,7 +872,7 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev, } if (p->job->vm) { - p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->page_directory); + p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->root.bo); r = amdgpu_bo_vm_update_pte(p); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 61701d589238..e7e75d2fe8a4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -115,9 +115,9 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm, struct list_head *validated, struct amdgpu_bo_list_entry *entry) { - entry->robj = vm->page_directory; + entry->robj = vm->root.bo; entry->priority = 0; - entry->tv.bo = &vm->page_directory->tbo; + entry->tv.bo = &entry->robj->tbo; entry->tv.shared = true; entry->user_pages = NULL; list_add(&entry->tv.head, validated); @@ -149,8 +149,8 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, return 0; /* add the vm page table to the list */ - for (i = 0; i <= vm->max_pde_used; ++i) { - struct amdgpu_bo *bo = vm->page_tables[i].bo; + for (i = 0; i <= vm->root.last_entry_used; ++i) { + struct amdgpu_bo *bo = vm->root.entries[i].bo; if (!bo) continue; @@ -178,8 +178,8 @@ void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev, unsigned i; spin_lock(&glob->lru_lock); - for (i = 0; i <= vm->max_pde_used; ++i) { - struct amdgpu_bo *bo = vm->page_tables[i].bo; + for (i = 0; i <= vm->root.last_entry_used; ++i) { + struct amdgpu_bo *bo = vm->root.entries[i].bo; if (!bo) continue; @@ -227,15 +227,15 @@ int amdgpu_vm_alloc_pts(struct amdgpu_device *adev, BUG_ON(eaddr >= amdgpu_vm_num_pdes(adev)); - if (eaddr > vm->max_pde_used) - vm->max_pde_used = eaddr; + if (eaddr > vm->root.last_entry_used) + vm->root.last_entry_used = eaddr; /* walk over the address space and allocate the page tables */ for (pt_idx = saddr; pt_idx <= eaddr; ++pt_idx) { - struct reservation_object *resv = vm->page_directory->tbo.resv; + struct reservation_object *resv = vm->root.bo->tbo.resv; struct amdgpu_bo *pt; - if (vm->page_tables[pt_idx].bo) + if (vm->root.entries[pt_idx].bo) continue; r = amdgpu_bo_create(adev, AMDGPU_VM_PTE_COUNT * 8, @@ -252,10 +252,10 @@ int amdgpu_vm_alloc_pts(struct amdgpu_device *adev, /* Keep a reference to the page table to avoid freeing * them up in the wrong order. */ - pt->parent = amdgpu_bo_ref(vm->page_directory); + pt->parent = amdgpu_bo_ref(vm->root.bo); - vm->page_tables[pt_idx].bo = pt; - vm->page_tables[pt_idx].addr = 0; + vm->root.entries[pt_idx].bo = pt; + vm->root.entries[pt_idx].addr = 0; } return 0; @@ -672,15 +672,15 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, int r; ring = container_of(vm->entity.sched, struct amdgpu_ring, sched); - shadow = vm->page_directory->shadow; + shadow = vm->root.bo->shadow; /* padding, etc. */ ndw = 64; /* assume the worst case */ - ndw += vm->max_pde_used * 6; + ndw += vm->root.last_entry_used * 6; - pd_addr = amdgpu_bo_gpu_offset(vm->page_directory); + pd_addr = amdgpu_bo_gpu_offset(vm->root.bo); if (shadow) { r = amdgpu_ttm_bind(&shadow->tbo, &shadow->tbo.mem); if (r) @@ -700,8 +700,8 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, params.ib = &job->ibs[0]; /* walk over the address space and update the page directory */ - for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) { - struct amdgpu_bo *bo = vm->page_tables[pt_idx].bo; + for (pt_idx = 0; pt_idx <= vm->root.last_entry_used; ++pt_idx) { + struct amdgpu_bo *bo = vm->root.entries[pt_idx].bo; uint64_t pde, pt; if (bo == NULL) @@ -717,10 +717,10 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, } pt = amdgpu_bo_gpu_offset(bo); - if (vm->page_tables[pt_idx].addr == pt) + if (vm->root.entries[pt_idx].addr == pt) continue; - vm->page_tables[pt_idx].addr = pt; + vm->root.entries[pt_idx].addr = pt; pde = pd_addr + pt_idx * 8; if (((last_pde + 8 * count) != pde) || @@ -755,7 +755,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, if (count) { uint64_t pt_addr = amdgpu_vm_adjust_mc_addr(adev, last_pt); - if (vm->page_directory->shadow) + if (vm->root.bo->shadow) amdgpu_vm_do_set_ptes(¶ms, last_shadow, pt_addr, count, incr, AMDGPU_PTE_VALID); @@ -769,7 +769,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, } amdgpu_ring_pad_ib(ring, params.ib); - amdgpu_sync_resv(adev, &job->sync, vm->page_directory->tbo.resv, + amdgpu_sync_resv(adev, &job->sync, vm->root.bo->tbo.resv, AMDGPU_FENCE_OWNER_VM); if (shadow) amdgpu_sync_resv(adev, &job->sync, shadow->tbo.resv, @@ -781,7 +781,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, if (r) goto error_free; - amdgpu_bo_fence(vm->page_directory, fence, true); + amdgpu_bo_fence(vm->root.bo, fence, true); dma_fence_put(vm->last_dir_update); vm->last_dir_update = dma_fence_get(fence); dma_fence_put(fence); @@ -821,7 +821,7 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, /* initialize the variables */ addr = start; pt_idx = addr >> amdgpu_vm_block_size; - pt = params->vm->page_tables[pt_idx].bo; + pt = params->vm->root.entries[pt_idx].bo; if (params->shadow) { if (!pt->shadow) return; @@ -844,7 +844,7 @@ static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, /* walk over the address space and update the page tables */ while (addr < end) { pt_idx = addr >> amdgpu_vm_block_size; - pt = params->vm->page_tables[pt_idx].bo; + pt = params->vm->root.entries[pt_idx].bo; if (params->shadow) { if (!pt->shadow) return; @@ -1058,12 +1058,12 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, if (r) goto error_free; - r = amdgpu_sync_resv(adev, &job->sync, vm->page_directory->tbo.resv, + r = amdgpu_sync_resv(adev, &job->sync, vm->root.bo->tbo.resv, owner); if (r) goto error_free; - r = reservation_object_reserve_shared(vm->page_directory->tbo.resv); + r = reservation_object_reserve_shared(vm->root.bo->tbo.resv); if (r) goto error_free; @@ -1079,7 +1079,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, if (r) goto error_free; - amdgpu_bo_fence(vm->page_directory, f, true); + amdgpu_bo_fence(vm->root.bo, f, true); dma_fence_put(*fence); *fence = f; return 0; @@ -1372,7 +1372,7 @@ static void amdgpu_vm_free_mapping(struct amdgpu_device *adev, */ static void amdgpu_vm_prt_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) { - struct reservation_object *resv = vm->page_directory->tbo.resv; + struct reservation_object *resv = vm->root.bo->tbo.resv; struct dma_fence *excl, **shared; unsigned i, shared_count; int r; @@ -1897,8 +1897,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm) pd_entries = amdgpu_vm_num_pdes(adev); /* allocate page table array */ - vm->page_tables = drm_calloc_large(pd_entries, sizeof(struct amdgpu_vm_pt)); - if (vm->page_tables == NULL) { + vm->root.entries = drm_calloc_large(pd_entries, sizeof(struct amdgpu_vm_pt)); + if (vm->root.entries == NULL) { DRM_ERROR("Cannot allocate memory for page table array\n"); return -ENOMEM; } @@ -1922,29 +1922,29 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm) AMDGPU_GEM_CREATE_SHADOW | AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | AMDGPU_GEM_CREATE_VRAM_CLEARED, - NULL, NULL, &vm->page_directory); + NULL, NULL, &vm->root.bo); if (r) goto error_free_sched_entity; - r = amdgpu_bo_reserve(vm->page_directory, false); + r = amdgpu_bo_reserve(vm->root.bo, false); if (r) - goto error_free_page_directory; + goto error_free_root; vm->last_eviction_counter = atomic64_read(&adev->num_evictions); - amdgpu_bo_unreserve(vm->page_directory); + amdgpu_bo_unreserve(vm->root.bo); return 0; -error_free_page_directory: - amdgpu_bo_unref(&vm->page_directory->shadow); - amdgpu_bo_unref(&vm->page_directory); - vm->page_directory = NULL; +error_free_root: + amdgpu_bo_unref(&vm->root.bo->shadow); + amdgpu_bo_unref(&vm->root.bo); + vm->root.bo = NULL; error_free_sched_entity: amd_sched_entity_fini(&ring->sched, &vm->entity); err: - drm_free_large(vm->page_tables); + drm_free_large(vm->root.entries); return r; } @@ -1985,7 +1985,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) } for (i = 0; i < amdgpu_vm_num_pdes(adev); i++) { - struct amdgpu_bo *pt = vm->page_tables[i].bo; + struct amdgpu_bo *pt = vm->root.entries[i].bo; if (!pt) continue; @@ -1993,10 +1993,10 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) amdgpu_bo_unref(&pt->shadow); amdgpu_bo_unref(&pt); } - drm_free_large(vm->page_tables); + drm_free_large(vm->root.entries); - amdgpu_bo_unref(&vm->page_directory->shadow); - amdgpu_bo_unref(&vm->page_directory); + amdgpu_bo_unref(&vm->root.bo->shadow); + amdgpu_bo_unref(&vm->root.bo); dma_fence_put(vm->last_dir_update); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index e56df942af8e..6c8380d89148 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -79,6 +79,10 @@ struct amdgpu_bo_list_entry; struct amdgpu_vm_pt { struct amdgpu_bo *bo; uint64_t addr; + + /* array of page tables, one for each directory entry */ + struct amdgpu_vm_pt *entries; + unsigned last_entry_used; }; struct amdgpu_vm { @@ -98,14 +102,10 @@ struct amdgpu_vm { struct list_head freed; /* contains the page directory */ - struct amdgpu_bo *page_directory; - unsigned max_pde_used; + struct amdgpu_vm_pt root; struct dma_fence *last_dir_update; uint64_t last_eviction_counter; - /* array of page tables, one for each page directory entry */ - struct amdgpu_vm_pt *page_tables; - /* for id and flush management per ring */ struct amdgpu_vm_id *ids[AMDGPU_MAX_RINGS]; -- 2.30.2