diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 277 |
1 files changed, 120 insertions, 157 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 9ce36652029e..bd20ff018512 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -159,7 +159,8 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm, */ static int amdgpu_vm_validate_level(struct amdgpu_vm_pt *parent, int (*validate)(void *, struct amdgpu_bo *), - void *param, bool use_cpu_for_update) + void *param, bool use_cpu_for_update, + struct ttm_bo_global *glob) { unsigned i; int r; @@ -183,12 +184,18 @@ static int amdgpu_vm_validate_level(struct amdgpu_vm_pt *parent, if (r) return r; + spin_lock(&glob->lru_lock); + ttm_bo_move_to_lru_tail(&entry->bo->tbo); + if (entry->bo->shadow) + ttm_bo_move_to_lru_tail(&entry->bo->shadow->tbo); + spin_unlock(&glob->lru_lock); + /* * Recurse into the sub directory. This is harmless because we * have only a maximum of 5 layers. */ r = amdgpu_vm_validate_level(entry, validate, param, - use_cpu_for_update); + use_cpu_for_update, glob); if (r) return r; } @@ -220,54 +227,11 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, return 0; return amdgpu_vm_validate_level(&vm->root, validate, param, - vm->use_cpu_for_update); -} - -/** - * amdgpu_vm_move_level_in_lru - move one level of PT BOs to the LRU tail - * - * @adev: amdgpu device instance - * @vm: vm providing the BOs - * - * Move the PT BOs to the tail of the LRU. - */ -static void amdgpu_vm_move_level_in_lru(struct amdgpu_vm_pt *parent) -{ - unsigned i; - - if (!parent->entries) - return; - - for (i = 0; i <= parent->last_entry_used; ++i) { - struct amdgpu_vm_pt *entry = &parent->entries[i]; - - if (!entry->bo) - continue; - - ttm_bo_move_to_lru_tail(&entry->bo->tbo); - amdgpu_vm_move_level_in_lru(entry); - } + vm->use_cpu_for_update, + adev->mman.bdev.glob); } /** - * amdgpu_vm_move_pt_bos_in_lru - move the PT BOs to the LRU tail - * - * @adev: amdgpu device instance - * @vm: vm providing the BOs - * - * Move the PT BOs to the tail of the LRU. - */ -void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev, - struct amdgpu_vm *vm) -{ - struct ttm_bo_global *glob = adev->mman.bdev.glob; - - spin_lock(&glob->lru_lock); - amdgpu_vm_move_level_in_lru(&vm->root); - spin_unlock(&glob->lru_lock); -} - - /** * amdgpu_vm_alloc_levels - allocate the PD/PT levels * * @adev: amdgpu_device pointer @@ -359,7 +323,6 @@ static int amdgpu_vm_alloc_levels(struct amdgpu_device *adev, entry->bo = pt; entry->addr = 0; - entry->huge_page = false; } if (level < adev->vm_manager.num_level) { @@ -899,8 +862,8 @@ struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm, { struct amdgpu_bo_va *bo_va; - list_for_each_entry(bo_va, &bo->va, bo_list) { - if (bo_va->vm == vm) { + list_for_each_entry(bo_va, &bo->va, base.bo_list) { + if (bo_va->base.vm == vm) { return bo_va; } } @@ -1074,11 +1037,6 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev, params.func = amdgpu_vm_cpu_set_ptes; } else { - if (shadow) { - r = amdgpu_ttm_bind(&shadow->tbo, &shadow->tbo.mem); - if (r) - return r; - } ring = container_of(vm->entity.sched, struct amdgpu_ring, sched); @@ -1114,22 +1072,14 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev, if (bo == NULL) continue; - if (bo->shadow) { - struct amdgpu_bo *pt_shadow = bo->shadow; - - r = amdgpu_ttm_bind(&pt_shadow->tbo, - &pt_shadow->tbo.mem); - if (r) - return r; - } - pt = amdgpu_bo_gpu_offset(bo); pt = amdgpu_gart_get_vm_pde(adev, pt); - if (parent->entries[pt_idx].addr == pt || - parent->entries[pt_idx].huge_page) + /* Don't update huge pages here */ + if ((parent->entries[pt_idx].addr & AMDGPU_PDE_PTE) || + parent->entries[pt_idx].addr == (pt | AMDGPU_PTE_VALID)) continue; - parent->entries[pt_idx].addr = pt; + parent->entries[pt_idx].addr = pt | AMDGPU_PTE_VALID; pde = pd_addr + pt_idx * 8; if (((last_pde + 8 * count) != pde) || @@ -1307,43 +1257,52 @@ void amdgpu_vm_get_entry(struct amdgpu_pte_update_params *p, uint64_t addr, * * Check if we can update the PD with a huge page. */ -static int amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p, - struct amdgpu_vm_pt *entry, - struct amdgpu_vm_pt *parent, - unsigned nptes, uint64_t dst, - uint64_t flags) +static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p, + struct amdgpu_vm_pt *entry, + struct amdgpu_vm_pt *parent, + unsigned nptes, uint64_t dst, + uint64_t flags) { bool use_cpu_update = (p->func == amdgpu_vm_cpu_set_ptes); uint64_t pd_addr, pde; - int r; /* In the case of a mixed PT the PDE must point to it*/ if (p->adev->asic_type < CHIP_VEGA10 || nptes != AMDGPU_VM_PTE_COUNT(p->adev) || - p->func == amdgpu_vm_do_copy_ptes || + p->src || !(flags & AMDGPU_PTE_VALID)) { dst = amdgpu_bo_gpu_offset(entry->bo); dst = amdgpu_gart_get_vm_pde(p->adev, dst); flags = AMDGPU_PTE_VALID; } else { + /* Set the huge page flag to stop scanning at this PDE */ flags |= AMDGPU_PDE_PTE; } - if (entry->addr == dst && - entry->huge_page == !!(flags & AMDGPU_PDE_PTE)) - return 0; + if (entry->addr == (dst | flags)) + return; - entry->addr = dst; - entry->huge_page = !!(flags & AMDGPU_PDE_PTE); + entry->addr = (dst | flags); if (use_cpu_update) { - r = amdgpu_bo_kmap(parent->bo, (void *)&pd_addr); - if (r) - return r; + /* In case a huge page is replaced with a system + * memory mapping, p->pages_addr != NULL and + * amdgpu_vm_cpu_set_ptes would try to translate dst + * through amdgpu_vm_map_gart. But dst is already a + * GPU address (of the page table). Disable + * amdgpu_vm_map_gart temporarily. + */ + dma_addr_t *tmp; + + tmp = p->pages_addr; + p->pages_addr = NULL; + pd_addr = (unsigned long)amdgpu_bo_kptr(parent->bo); pde = pd_addr + (entry - parent->entries) * 8; amdgpu_vm_cpu_set_ptes(p, pde, dst, 1, 0, flags); + + p->pages_addr = tmp; } else { if (parent->bo->shadow) { pd_addr = amdgpu_bo_gpu_offset(parent->bo->shadow); @@ -1354,8 +1313,6 @@ static int amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p, pde = pd_addr + (entry - parent->entries) * 8; amdgpu_vm_do_set_ptes(p, pde, dst, 1, 0, flags); } - - return 0; } /** @@ -1382,7 +1339,6 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, struct amdgpu_bo *pt; unsigned nptes; bool use_cpu_update = (params->func == amdgpu_vm_cpu_set_ptes); - int r; /* walk over the address space and update the page tables */ for (addr = start; addr < end; addr += nptes, @@ -1398,12 +1354,10 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, else nptes = AMDGPU_VM_PTE_COUNT(adev) - (addr & mask); - r = amdgpu_vm_handle_huge_pages(params, entry, parent, - nptes, dst, flags); - if (r) - return r; - - if (entry->huge_page) + amdgpu_vm_handle_huge_pages(params, entry, parent, + nptes, dst, flags); + /* We don't need to update PTEs for huge pages */ + if (entry->addr & AMDGPU_PDE_PTE) continue; pt = entry->bo; @@ -1462,9 +1416,7 @@ static int amdgpu_vm_frag_ptes(struct amdgpu_pte_update_params *params, * Userspace can support this by aligning virtual base address and * allocation size to the fragment size. */ - - /* SI and newer are optimized for 64KB */ - unsigned pages_per_frag = AMDGPU_LOG2_PAGES_PER_FRAG(params->adev); + unsigned pages_per_frag = params->adev->vm_manager.fragment_size; uint64_t frag_flags = AMDGPU_PTE_FRAG(pages_per_frag); uint64_t frag_align = 1 << pages_per_frag; @@ -1664,7 +1616,6 @@ error_free: * * @adev: amdgpu_device pointer * @exclusive: fence we need to sync to - * @gtt_flags: flags as they are used for GTT * @pages_addr: DMA addresses to use for mapping * @vm: requested vm * @mapping: mapped range and flags to use for the update @@ -1678,7 +1629,6 @@ error_free: */ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, struct dma_fence *exclusive, - uint64_t gtt_flags, dma_addr_t *pages_addr, struct amdgpu_vm *vm, struct amdgpu_bo_va_mapping *mapping, @@ -1733,11 +1683,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, } if (pages_addr) { - if (flags == gtt_flags) - src = adev->gart.table_addr + - (addr >> AMDGPU_GPU_PAGE_SHIFT) * 8; - else - max_entries = min(max_entries, 16ull * 1024ull); + max_entries = min(max_entries, 16ull * 1024ull); addr = 0; } else if (flags & AMDGPU_PTE_VALID) { addr += adev->vm_manager.vram_base_offset; @@ -1778,50 +1724,45 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va, bool clear) { - struct amdgpu_vm *vm = bo_va->vm; + struct amdgpu_bo *bo = bo_va->base.bo; + struct amdgpu_vm *vm = bo_va->base.vm; struct amdgpu_bo_va_mapping *mapping; dma_addr_t *pages_addr = NULL; - uint64_t gtt_flags, flags; struct ttm_mem_reg *mem; struct drm_mm_node *nodes; struct dma_fence *exclusive; + uint64_t flags; int r; - if (clear || !bo_va->bo) { + if (clear || !bo_va->base.bo) { mem = NULL; nodes = NULL; exclusive = NULL; } else { struct ttm_dma_tt *ttm; - mem = &bo_va->bo->tbo.mem; + mem = &bo_va->base.bo->tbo.mem; nodes = mem->mm_node; if (mem->mem_type == TTM_PL_TT) { - ttm = container_of(bo_va->bo->tbo.ttm, struct - ttm_dma_tt, ttm); + ttm = container_of(bo_va->base.bo->tbo.ttm, + struct ttm_dma_tt, ttm); pages_addr = ttm->dma_address; } - exclusive = reservation_object_get_excl(bo_va->bo->tbo.resv); + exclusive = reservation_object_get_excl(bo->tbo.resv); } - if (bo_va->bo) { - flags = amdgpu_ttm_tt_pte_flags(adev, bo_va->bo->tbo.ttm, mem); - gtt_flags = (amdgpu_ttm_is_bound(bo_va->bo->tbo.ttm) && - adev == amdgpu_ttm_adev(bo_va->bo->tbo.bdev)) ? - flags : 0; - } else { + if (bo) + flags = amdgpu_ttm_tt_pte_flags(adev, bo->tbo.ttm, mem); + else flags = 0x0; - gtt_flags = ~0x0; - } spin_lock(&vm->status_lock); - if (!list_empty(&bo_va->vm_status)) + if (!list_empty(&bo_va->base.vm_status)) list_splice_init(&bo_va->valids, &bo_va->invalids); spin_unlock(&vm->status_lock); list_for_each_entry(mapping, &bo_va->invalids, list) { - r = amdgpu_vm_bo_split_mapping(adev, exclusive, - gtt_flags, pages_addr, vm, + r = amdgpu_vm_bo_split_mapping(adev, exclusive, pages_addr, vm, mapping, flags, nodes, &bo_va->last_pt_update); if (r) @@ -1838,9 +1779,9 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, spin_lock(&vm->status_lock); list_splice_init(&bo_va->invalids, &bo_va->valids); - list_del_init(&bo_va->vm_status); + list_del_init(&bo_va->base.vm_status); if (clear) - list_add(&bo_va->vm_status, &vm->cleared); + list_add(&bo_va->base.vm_status, &vm->cleared); spin_unlock(&vm->status_lock); if (vm->use_cpu_for_update) { @@ -2034,26 +1975,26 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, } /** - * amdgpu_vm_clear_invalids - clear invalidated BOs in the PT + * amdgpu_vm_clear_moved - clear moved BOs in the PT * * @adev: amdgpu_device pointer * @vm: requested vm * - * Make sure all invalidated BOs are cleared in the PT. + * Make sure all moved BOs are cleared in the PT. * Returns 0 for success. * * PTs have to be reserved and mutex must be locked! */ -int amdgpu_vm_clear_invalids(struct amdgpu_device *adev, - struct amdgpu_vm *vm, struct amdgpu_sync *sync) +int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm, + struct amdgpu_sync *sync) { struct amdgpu_bo_va *bo_va = NULL; int r = 0; spin_lock(&vm->status_lock); - while (!list_empty(&vm->invalidated)) { - bo_va = list_first_entry(&vm->invalidated, - struct amdgpu_bo_va, vm_status); + while (!list_empty(&vm->moved)) { + bo_va = list_first_entry(&vm->moved, + struct amdgpu_bo_va, base.vm_status); spin_unlock(&vm->status_lock); r = amdgpu_vm_bo_update(adev, bo_va, true); @@ -2093,16 +2034,17 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev, if (bo_va == NULL) { return NULL; } - bo_va->vm = vm; - bo_va->bo = bo; + bo_va->base.vm = vm; + bo_va->base.bo = bo; + INIT_LIST_HEAD(&bo_va->base.bo_list); + INIT_LIST_HEAD(&bo_va->base.vm_status); + bo_va->ref_count = 1; - INIT_LIST_HEAD(&bo_va->bo_list); INIT_LIST_HEAD(&bo_va->valids); INIT_LIST_HEAD(&bo_va->invalids); - INIT_LIST_HEAD(&bo_va->vm_status); if (bo) - list_add_tail(&bo_va->bo_list, &bo->va); + list_add_tail(&bo_va->base.bo_list, &bo->va); return bo_va; } @@ -2127,7 +2069,8 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, uint64_t size, uint64_t flags) { struct amdgpu_bo_va_mapping *mapping, *tmp; - struct amdgpu_vm *vm = bo_va->vm; + struct amdgpu_bo *bo = bo_va->base.bo; + struct amdgpu_vm *vm = bo_va->base.vm; uint64_t eaddr; /* validate the parameters */ @@ -2138,7 +2081,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, /* make sure object fit at this offset */ eaddr = saddr + size - 1; if (saddr >= eaddr || - (bo_va->bo && offset + size > amdgpu_bo_size(bo_va->bo))) + (bo && offset + size > amdgpu_bo_size(bo))) return -EINVAL; saddr /= AMDGPU_GPU_PAGE_SIZE; @@ -2148,7 +2091,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, if (tmp) { /* bo and tmp overlap, invalid addr */ dev_err(adev->dev, "bo %p va 0x%010Lx-0x%010Lx conflict with " - "0x%010Lx-0x%010Lx\n", bo_va->bo, saddr, eaddr, + "0x%010Lx-0x%010Lx\n", bo, saddr, eaddr, tmp->start, tmp->last + 1); return -EINVAL; } @@ -2193,7 +2136,8 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev, uint64_t size, uint64_t flags) { struct amdgpu_bo_va_mapping *mapping; - struct amdgpu_vm *vm = bo_va->vm; + struct amdgpu_bo *bo = bo_va->base.bo; + struct amdgpu_vm *vm = bo_va->base.vm; uint64_t eaddr; int r; @@ -2205,7 +2149,7 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev, /* make sure object fit at this offset */ eaddr = saddr + size - 1; if (saddr >= eaddr || - (bo_va->bo && offset + size > amdgpu_bo_size(bo_va->bo))) + (bo && offset + size > amdgpu_bo_size(bo))) return -EINVAL; /* Allocate all the needed memory */ @@ -2213,7 +2157,7 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev, if (!mapping) return -ENOMEM; - r = amdgpu_vm_bo_clear_mappings(adev, bo_va->vm, saddr, size); + r = amdgpu_vm_bo_clear_mappings(adev, bo_va->base.vm, saddr, size); if (r) { kfree(mapping); return r; @@ -2253,7 +2197,7 @@ int amdgpu_vm_bo_unmap(struct amdgpu_device *adev, uint64_t saddr) { struct amdgpu_bo_va_mapping *mapping; - struct amdgpu_vm *vm = bo_va->vm; + struct amdgpu_vm *vm = bo_va->base.vm; bool valid = true; saddr /= AMDGPU_GPU_PAGE_SIZE; @@ -2401,12 +2345,12 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va) { struct amdgpu_bo_va_mapping *mapping, *next; - struct amdgpu_vm *vm = bo_va->vm; + struct amdgpu_vm *vm = bo_va->base.vm; - list_del(&bo_va->bo_list); + list_del(&bo_va->base.bo_list); spin_lock(&vm->status_lock); - list_del(&bo_va->vm_status); + list_del(&bo_va->base.vm_status); spin_unlock(&vm->status_lock); list_for_each_entry_safe(mapping, next, &bo_va->valids, list) { @@ -2438,13 +2382,14 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev, struct amdgpu_bo *bo) { - struct amdgpu_bo_va *bo_va; + struct amdgpu_vm_bo_base *bo_base; - list_for_each_entry(bo_va, &bo->va, bo_list) { - spin_lock(&bo_va->vm->status_lock); - if (list_empty(&bo_va->vm_status)) - list_add(&bo_va->vm_status, &bo_va->vm->invalidated); - spin_unlock(&bo_va->vm->status_lock); + list_for_each_entry(bo_base, &bo->va, bo_list) { + spin_lock(&bo_base->vm->status_lock); + if (list_empty(&bo_base->vm_status)) + list_add(&bo_base->vm_status, + &bo_base->vm->moved); + spin_unlock(&bo_base->vm->status_lock); } } @@ -2462,12 +2407,26 @@ static uint32_t amdgpu_vm_get_block_size(uint64_t vm_size) } /** - * amdgpu_vm_adjust_size - adjust vm size and block size + * amdgpu_vm_set_fragment_size - adjust fragment size in PTE + * + * @adev: amdgpu_device pointer + * @fragment_size_default: the default fragment size if it's set auto + */ +void amdgpu_vm_set_fragment_size(struct amdgpu_device *adev, uint32_t fragment_size_default) +{ + if (amdgpu_vm_fragment_size == -1) + adev->vm_manager.fragment_size = fragment_size_default; + else + adev->vm_manager.fragment_size = amdgpu_vm_fragment_size; +} + +/** + * amdgpu_vm_adjust_size - adjust vm size, block size and fragment size * * @adev: amdgpu_device pointer * @vm_size: the default vm size if it's set auto */ -void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size) +void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size, uint32_t fragment_size_default) { /* adjust vm size firstly */ if (amdgpu_vm_size == -1) @@ -2482,8 +2441,11 @@ void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size) else adev->vm_manager.block_size = amdgpu_vm_block_size; - DRM_INFO("vm size is %llu GB, block size is %u-bit\n", - adev->vm_manager.vm_size, adev->vm_manager.block_size); + amdgpu_vm_set_fragment_size(adev, fragment_size_default); + + DRM_INFO("vm size is %llu GB, block size is %u-bit, fragment size is %u-bit\n", + adev->vm_manager.vm_size, adev->vm_manager.block_size, + adev->vm_manager.fragment_size); } /** @@ -2507,12 +2469,12 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, u64 flags; uint64_t init_pde_value = 0; - vm->va = RB_ROOT; + vm->va = RB_ROOT_CACHED; vm->client_id = atomic64_inc_return(&adev->vm_manager.client_counter); for (i = 0; i < AMDGPU_MAX_VMHUBS; i++) vm->reserved_vmid[i] = NULL; spin_lock_init(&vm->status_lock); - INIT_LIST_HEAD(&vm->invalidated); + INIT_LIST_HEAD(&vm->moved); INIT_LIST_HEAD(&vm->cleared); INIT_LIST_HEAD(&vm->freed); @@ -2628,10 +2590,11 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) amd_sched_entity_fini(vm->entity.sched, &vm->entity); - if (!RB_EMPTY_ROOT(&vm->va)) { + if (!RB_EMPTY_ROOT(&vm->va.rb_root)) { dev_err(adev->dev, "still active bo inside vm\n"); } - rbtree_postorder_for_each_entry_safe(mapping, tmp, &vm->va, rb) { + rbtree_postorder_for_each_entry_safe(mapping, tmp, + &vm->va.rb_root, rb) { list_del(&mapping->list); amdgpu_vm_it_remove(mapping, &vm->va); kfree(mapping); |