/* * Copyright 2009 Jerome Glisse. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: * Jerome Glisse * Thomas Hellstrom * Dave Airlie */ #include #include #include #include #include #include "amdgpu.h" #include "amdgpu_trace.h" static u64 amdgpu_get_vis_part_size(struct amdgpu_device *adev, struct ttm_mem_reg *mem) { if (mem->start << PAGE_SHIFT >= adev->mc.visible_vram_size) return 0; return ((mem->start << PAGE_SHIFT) + mem->size) > adev->mc.visible_vram_size ? adev->mc.visible_vram_size - (mem->start << PAGE_SHIFT) : mem->size; } static void amdgpu_update_memory_usage(struct amdgpu_device *adev, struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem) { u64 vis_size; if (!adev) return; if (new_mem) { switch (new_mem->mem_type) { case TTM_PL_TT: atomic64_add(new_mem->size, &adev->gtt_usage); break; case TTM_PL_VRAM: atomic64_add(new_mem->size, &adev->vram_usage); vis_size = amdgpu_get_vis_part_size(adev, new_mem); atomic64_add(vis_size, &adev->vram_vis_usage); break; } } if (old_mem) { switch (old_mem->mem_type) { case TTM_PL_TT: atomic64_sub(old_mem->size, &adev->gtt_usage); break; case TTM_PL_VRAM: atomic64_sub(old_mem->size, &adev->vram_usage); vis_size = amdgpu_get_vis_part_size(adev, old_mem); atomic64_sub(vis_size, &adev->vram_vis_usage); break; } } } static void amdgpu_ttm_bo_destroy(struct ttm_buffer_object *tbo) { struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev); struct amdgpu_bo *bo; bo = container_of(tbo, struct amdgpu_bo, tbo); amdgpu_bo_kunmap(bo); amdgpu_update_memory_usage(adev, &bo->tbo.mem, NULL); drm_gem_object_release(&bo->gem_base); amdgpu_bo_unref(&bo->parent); if (!list_empty(&bo->shadow_list)) { mutex_lock(&adev->shadow_list_lock); list_del_init(&bo->shadow_list); mutex_unlock(&adev->shadow_list_lock); } kfree(bo->metadata); kfree(bo); } bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo) { if (bo->destroy == &amdgpu_ttm_bo_destroy) return true; return false; } static void amdgpu_ttm_placement_init(struct amdgpu_device *adev, struct ttm_placement *placement, struct ttm_place *places, u32 domain, u64 flags) { u32 c = 0; if (domain & AMDGPU_GEM_DOMAIN_VRAM) { unsigned visible_pfn = adev->mc.visible_vram_size >> PAGE_SHIFT; places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) places[c].lpfn = visible_pfn; else places[c].flags |= TTM_PL_FLAG_TOPDOWN; if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) places[c].flags |= TTM_PL_FLAG_CONTIGUOUS; c++; } if (domain & AMDGPU_GEM_DOMAIN_GTT) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_TT; if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) places[c].flags |= TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED; else places[c].flags |= TTM_PL_FLAG_CACHED; c++; } if (domain & AMDGPU_GEM_DOMAIN_CPU) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_SYSTEM; if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) places[c].flags |= TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED; else places[c].flags |= TTM_PL_FLAG_CACHED; c++; } if (domain & AMDGPU_GEM_DOMAIN_GDS) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GDS; c++; } if (domain & AMDGPU_GEM_DOMAIN_GWS) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GWS; c++; } if (domain & AMDGPU_GEM_DOMAIN_OA) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_OA; c++; } if (!c) { places[c].fpfn = 0; places[c].lpfn = 0; places[c].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; c++; } placement->num_placement = c; placement->placement = places; placement->num_busy_placement = c; placement->busy_placement = places; } void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain) { struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev); amdgpu_ttm_placement_init(adev, &abo->placement, abo->placements, domain, abo->flags); } static void amdgpu_fill_placement_to_bo(struct amdgpu_bo *bo, struct ttm_placement *placement) { BUG_ON(placement->num_placement > (AMDGPU_GEM_DOMAIN_MAX + 1)); memcpy(bo->placements, placement->placement, placement->num_placement * sizeof(struct ttm_place)); bo->placement.num_placement = placement->num_placement; bo->placement.num_busy_placement = placement->num_busy_placement; bo->placement.placement = bo->placements; bo->placement.busy_placement = bo->placements; } /** * amdgpu_bo_create_reserved - create reserved BO for kernel use * * @adev: amdgpu device object * @size: size for the new BO * @align: alignment for the new BO * @domain: where to place it * @bo_ptr: resulting BO * @gpu_addr: GPU addr of the pinned BO * @cpu_addr: optional CPU address mapping * * Allocates and pins a BO for kernel internal use, and returns it still * reserved. * * Returns 0 on success, negative error code otherwise. */ int amdgpu_bo_create_reserved(struct amdgpu_device *adev, unsigned long size, int align, u32 domain, struct amdgpu_bo **bo_ptr, u64 *gpu_addr, void **cpu_addr) { bool free = false; int r; if (!*bo_ptr) { r = amdgpu_bo_create(adev, size, align, true, domain, AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, 0, bo_ptr); if (r) { dev_err(adev->dev, "(%d) failed to allocate kernel bo\n", r); return r; } free = true; } r = amdgpu_bo_reserve(*bo_ptr, false); if (r) { dev_err(adev->dev, "(%d) failed to reserve kernel bo\n", r); goto error_free; } r = amdgpu_bo_pin(*bo_ptr, domain, gpu_addr); if (r) { dev_err(adev->dev, "(%d) kernel bo pin failed\n", r); goto error_unreserve; } if (cpu_addr) { r = amdgpu_bo_kmap(*bo_ptr, cpu_addr); if (r) { dev_err(adev->dev, "(%d) kernel bo map failed\n", r); goto error_unreserve; } } return 0; error_unreserve: amdgpu_bo_unreserve(*bo_ptr); error_free: if (free) amdgpu_bo_unref(bo_ptr); return r; } /** * amdgpu_bo_create_kernel - create BO for kernel use * * @adev: amdgpu device object * @size: size for the new BO * @align: alignment for the new BO * @domain: where to place it * @bo_ptr: resulting BO * @gpu_addr: GPU addr of the pinned BO * @cpu_addr: optional CPU address mapping * * Allocates and pins a BO for kernel internal use. * * Returns 0 on success, negative error code otherwise. */ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, unsigned long size, int align, u32 domain, struct amdgpu_bo **bo_ptr, u64 *gpu_addr, void **cpu_addr) { int r; r = amdgpu_bo_create_reserved(adev, size, align, domain, bo_ptr, gpu_addr, cpu_addr); if (r) return r; amdgpu_bo_unreserve(*bo_ptr); return 0; } /** * amdgpu_bo_free_kernel - free BO for kernel use * * @bo: amdgpu BO to free * * unmaps and unpin a BO for kernel internal use. */ void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, void **cpu_addr) { if (*bo == NULL) return; if (likely(amdgpu_bo_reserve(*bo, true) == 0)) { if (cpu_addr) amdgpu_bo_kunmap(*bo); amdgpu_bo_unpin(*bo); amdgpu_bo_unreserve(*bo); } amdgpu_bo_unref(bo); if (gpu_addr) *gpu_addr = 0; if (cpu_addr) *cpu_addr = NULL; } int amdgpu_bo_create_restricted(struct amdgpu_device *adev, unsigned long size, int byte_align, bool kernel, u32 domain, u64 flags, struct sg_table *sg, struct ttm_placement *placement, struct reservation_object *resv, uint64_t init_value, struct amdgpu_bo **bo_ptr) { struct amdgpu_bo *bo; enum ttm_bo_type type; unsigned long page_align; u64 initial_bytes_moved, bytes_moved; size_t acc_size; int r; page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT; size = ALIGN(size, PAGE_SIZE); if (kernel) { type = ttm_bo_type_kernel; } else if (sg) { type = ttm_bo_type_sg; } else { type = ttm_bo_type_device; } *bo_ptr = NULL; acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size, sizeof(struct amdgpu_bo)); bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL); if (bo == NULL) return -ENOMEM; r = drm_gem_object_init(adev->ddev, &bo->gem_base, size); if (unlikely(r)) { kfree(bo); return r; } INIT_LIST_HEAD(&bo->shadow_list); INIT_LIST_HEAD(&bo->va); bo->prefered_domains = domain & (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT | AMDGPU_GEM_DOMAIN_CPU | AMDGPU_GEM_DOMAIN_GDS | AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA); bo->allowed_domains = bo->prefered_domains; if (!kernel && bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM) bo->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT; bo->flags = flags; #ifdef CONFIG_X86_32 /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit * See https://bugs.freedesktop.org/show_bug.cgi?id=84627 */ bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC; #elif defined(CONFIG_X86) && !defined(CONFIG_X86_PAT) /* Don't try to enable write-combining when it can't work, or things * may be slow * See https://bugs.freedesktop.org/show_bug.cgi?id=88758 */ #ifndef CONFIG_COMPILE_TEST #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \ thanks to write-combining #endif if (bo->flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for " "better performance thanks to write-combining\n"); bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC; #else /* For architectures that don't support WC memory, * mask out the WC flag from the BO */ if (!drm_arch_can_wc_memory()) bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC; #endif amdgpu_fill_placement_to_bo(bo, placement); /* Kernel allocation are uninterruptible */ initial_bytes_moved = atomic64_read(&adev->num_bytes_moved); r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, !kernel, NULL, acc_size, sg, resv, &amdgpu_ttm_bo_destroy); bytes_moved = atomic64_read(&adev->num_bytes_moved) - initial_bytes_moved; if (adev->mc.visible_vram_size < adev->mc.real_vram_size && bo->tbo.mem.mem_type == TTM_PL_VRAM && bo->tbo.mem.start < adev->mc.visible_vram_size >> PAGE_SHIFT) amdgpu_cs_report_moved_bytes(adev, bytes_moved, bytes_moved); else amdgpu_cs_report_moved_bytes(adev, bytes_moved, 0); if (unlikely(r != 0)) return r; if (kernel) bo->tbo.priority = 1; if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED && bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) { struct dma_fence *fence; r = amdgpu_fill_buffer(bo, init_value, bo->tbo.resv, &fence); if (unlikely(r)) goto fail_unreserve; amdgpu_bo_fence(bo, fence, false); dma_fence_put(bo->tbo.moving); bo->tbo.moving = dma_fence_get(fence); dma_fence_put(fence); } if (!resv) amdgpu_bo_unreserve(bo); *bo_ptr = bo; trace_amdgpu_bo_create(bo); /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */ if (type == ttm_bo_type_device) bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; return 0; fail_unreserve: if (!resv) ww_mutex_unlock(&bo->tbo.resv->lock); amdgpu_bo_unref(&bo); return r; } static int amdgpu_bo_create_shadow(struct amdgpu_device *adev, unsigned long size, int byte_align, struct amdgpu_bo *bo) { struct ttm_placement placement = {0}; struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1]; int r; if (bo->shadow) return 0; bo->flags |= AMDGPU_GEM_CREATE_SHADOW; memset(&placements, 0, (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place)); amdgpu_ttm_placement_init(adev, &placement, placements, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_CREATE_CPU_GTT_USWC); r = amdgpu_bo_create_restricted(adev, size, byte_align, true, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_CREATE_CPU_GTT_USWC, NULL, &placement, bo->tbo.resv, 0, &bo->shadow); if (!r) { bo->shadow->parent = amdgpu_bo_ref(bo); mutex_lock(&adev->shadow_list_lock); list_add_tail(&bo->shadow_list, &adev->shadow_list); mutex_unlock(&adev->shadow_list_lock); } return r; } /* init_value will only take effect when flags contains * AMDGPU_GEM_CREATE_VRAM_CLEARED. */ int amdgpu_bo_create(struct amdgpu_device *adev, unsigned long size, int byte_align, bool kernel, u32 domain, u64 flags, struct sg_table *sg, struct reservation_object *resv, uint64_t init_value, struct amdgpu_bo **bo_ptr) { struct ttm_placement placement = {0}; struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1]; int r; memset(&placements, 0, (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place)); amdgpu_ttm_placement_init(adev, &placement, placements, domain, flags); r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel, domain, flags, sg, &placement, resv, init_value, bo_ptr); if (r) return r; if (amdgpu_need_backup(adev) && (flags & AMDGPU_GEM_CREATE_SHADOW)) { if (!resv) { r = ww_mutex_lock(&(*bo_ptr)->tbo.resv->lock, NULL); WARN_ON(r != 0); } r = amdgpu_bo_create_shadow(adev, size, byte_align, (*bo_ptr)); if (!resv) ww_mutex_unlock(&(*bo_ptr)->tbo.resv->lock); if (r) amdgpu_bo_unref(bo_ptr); } return r; } int amdgpu_bo_backup_to_shadow(struct amdgpu_device *adev, struct amdgpu_ring *ring, struct amdgpu_bo *bo, struct reservation_object *resv, struct dma_fence **fence, bool direct) { struct amdgpu_bo *shadow = bo->shadow; uint64_t bo_addr, shadow_addr; int r; if (!shadow) return -EINVAL; bo_addr = amdgpu_bo_gpu_offset(bo); shadow_addr = amdgpu_bo_gpu_offset(bo->shadow); r = reservation_object_reserve_shared(bo->tbo.resv); if (r) goto err; r = amdgpu_copy_buffer(ring, bo_addr, shadow_addr, amdgpu_bo_size(bo), resv, fence, direct, false); if (!r) amdgpu_bo_fence(bo, *fence, true); err: return r; } int amdgpu_bo_validate(struct amdgpu_bo *bo) { uint32_t domain; int r; if (bo->pin_count) return 0; domain = bo->prefered_domains; retry: amdgpu_ttm_placement_from_domain(bo, domain); r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); if (unlikely(r == -ENOMEM) && domain != bo->allowed_domains) { domain = bo->allowed_domains; goto retry; } return r; } int amdgpu_bo_restore_from_shadow(struct amdgpu_device *adev, struct amdgpu_ring *ring, struct amdgpu_bo *bo, struct reservation_object *resv, struct dma_fence **fence, bool direct) { struct amdgpu_bo *shadow = bo->shadow; uint64_t bo_addr, shadow_addr; int r; if (!shadow) return -EINVAL; bo_addr = amdgpu_bo_gpu_offset(bo); shadow_addr = amdgpu_bo_gpu_offset(bo->shadow); r = reservation_object_reserve_shared(bo->tbo.resv); if (r) goto err; r = amdgpu_copy_buffer(ring, shadow_addr, bo_addr, amdgpu_bo_size(bo), resv, fence, direct, false); if (!r) amdgpu_bo_fence(bo, *fence, true); err: return r; } int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr) { void *kptr; long r; if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) return -EPERM; kptr = amdgpu_bo_kptr(bo); if (kptr) { if (ptr) *ptr = kptr; return 0; } r = reservation_object_wait_timeout_rcu(bo->tbo.resv, false, false, MAX_SCHEDULE_TIMEOUT); if (r < 0) return r; r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap); if (r) return r; if (ptr) *ptr = amdgpu_bo_kptr(bo); return 0; } void *amdgpu_bo_kptr(struct amdgpu_bo *bo) { bool is_iomem; return ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); } void amdgpu_bo_kunmap(struct amdgpu_bo *bo) { if (bo->kmap.bo) ttm_bo_kunmap(&bo->kmap); } struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo) { if (bo == NULL) return NULL; ttm_bo_reference(&bo->tbo); return bo; } void amdgpu_bo_unref(struct amdgpu_bo **bo) { struct ttm_buffer_object *tbo; if ((*bo) == NULL) return; tbo = &((*bo)->tbo); ttm_bo_unref(&tbo); if (tbo == NULL) *bo = NULL; } int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain, u64 min_offset, u64 max_offset, u64 *gpu_addr) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); int r, i; unsigned fpfn, lpfn; if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) return -EPERM; if (WARN_ON_ONCE(min_offset > max_offset)) return -EINVAL; /* A shared bo cannot be migrated to VRAM */ if (bo->prime_shared_count && (domain == AMDGPU_GEM_DOMAIN_VRAM)) return -EINVAL; if (bo->pin_count) { uint32_t mem_type = bo->tbo.mem.mem_type; if (domain != amdgpu_mem_type_to_domain(mem_type)) return -EINVAL; bo->pin_count++; if (gpu_addr) *gpu_addr = amdgpu_bo_gpu_offset(bo); if (max_offset != 0) { u64 domain_start = bo->tbo.bdev->man[mem_type].gpu_offset; WARN_ON_ONCE(max_offset < (amdgpu_bo_gpu_offset(bo) - domain_start)); } return 0; } bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; amdgpu_ttm_placement_from_domain(bo, domain); for (i = 0; i < bo->placement.num_placement; i++) { /* force to pin into visible video ram */ if ((bo->placements[i].flags & TTM_PL_FLAG_VRAM) && !(bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) && (!max_offset || max_offset > adev->mc.visible_vram_size)) { if (WARN_ON_ONCE(min_offset > adev->mc.visible_vram_size)) return -EINVAL; fpfn = min_offset >> PAGE_SHIFT; lpfn = adev->mc.visible_vram_size >> PAGE_SHIFT; } else { fpfn = min_offset >> PAGE_SHIFT; lpfn = max_offset >> PAGE_SHIFT; } if (fpfn > bo->placements[i].fpfn) bo->placements[i].fpfn = fpfn; if (!bo->placements[i].lpfn || (lpfn && lpfn < bo->placements[i].lpfn)) bo->placements[i].lpfn = lpfn; bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT; } r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); if (unlikely(r)) { dev_err(adev->dev, "%p pin failed\n", bo); goto error; } bo->pin_count = 1; if (gpu_addr != NULL) { r = amdgpu_ttm_bind(&bo->tbo, &bo->tbo.mem); if (unlikely(r)) { dev_err(adev->dev, "%p bind failed\n", bo); goto error; } *gpu_addr = amdgpu_bo_gpu_offset(bo); } if (domain == AMDGPU_GEM_DOMAIN_VRAM) { adev->vram_pin_size += amdgpu_bo_size(bo); if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) adev->invisible_pin_size += amdgpu_bo_size(bo); } else if (domain == AMDGPU_GEM_DOMAIN_GTT) { adev->gart_pin_size += amdgpu_bo_size(bo); } error: return r; } int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain, u64 *gpu_addr) { return amdgpu_bo_pin_restricted(bo, domain, 0, 0, gpu_addr); } int amdgpu_bo_unpin(struct amdgpu_bo *bo) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); int r, i; if (!bo->pin_count) { dev_warn(adev->dev, "%p unpin not necessary\n", bo); return 0; } bo->pin_count--; if (bo->pin_count) return 0; for (i = 0; i < bo->placement.num_placement; i++) { bo->placements[i].lpfn = 0; bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT; } r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); if (unlikely(r)) { dev_err(adev->dev, "%p validate failed for unpin\n", bo); goto error; } if (bo->tbo.mem.mem_type == TTM_PL_VRAM) { adev->vram_pin_size -= amdgpu_bo_size(bo); if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) adev->invisible_pin_size -= amdgpu_bo_size(bo); } else if (bo->tbo.mem.mem_type == TTM_PL_TT) { adev->gart_pin_size -= amdgpu_bo_size(bo); } error: return r; } int amdgpu_bo_evict_vram(struct amdgpu_device *adev) { /* late 2.6.33 fix IGP hibernate - we need pm ops to do this correct */ if (0 && (adev->flags & AMD_IS_APU)) { /* Useless to evict on IGP chips */ return 0; } return ttm_bo_evict_mm(&adev->mman.bdev, TTM_PL_VRAM); } static const char *amdgpu_vram_names[] = { "UNKNOWN", "GDDR1", "DDR2", "GDDR3", "GDDR4", "GDDR5", "HBM", "DDR3" }; int amdgpu_bo_init(struct amdgpu_device *adev) { /* reserve PAT memory space to WC for VRAM */ arch_io_reserve_memtype_wc(adev->mc.aper_base, adev->mc.aper_size); /* Add an MTRR for the VRAM */ adev->mc.vram_mtrr = arch_phys_wc_add(adev->mc.aper_base, adev->mc.aper_size); DRM_INFO("Detected VRAM RAM=%lluM, BAR=%lluM\n", adev->mc.mc_vram_size >> 20, (unsigned long long)adev->mc.aper_size >> 20); DRM_INFO("RAM width %dbits %s\n", adev->mc.vram_width, amdgpu_vram_names[adev->mc.vram_type]); return amdgpu_ttm_init(adev); } void amdgpu_bo_fini(struct amdgpu_device *adev) { amdgpu_ttm_fini(adev); arch_phys_wc_del(adev->mc.vram_mtrr); arch_io_free_memtype_wc(adev->mc.aper_base, adev->mc.aper_size); } int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo, struct vm_area_struct *vma) { return ttm_fbdev_mmap(vma, &bo->tbo); } int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); if (adev->family <= AMDGPU_FAMILY_CZ && AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT) > 6) return -EINVAL; bo->tiling_flags = tiling_flags; return 0; } void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags) { lockdep_assert_held(&bo->tbo.resv->lock.base); if (tiling_flags) *tiling_flags = bo->tiling_flags; } int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata, uint32_t metadata_size, uint64_t flags) { void *buffer; if (!metadata_size) { if (bo->metadata_size) { kfree(bo->metadata); bo->metadata = NULL; bo->metadata_size = 0; } return 0; } if (metadata == NULL) return -EINVAL; buffer = kmemdup(metadata, metadata_size, GFP_KERNEL); if (buffer == NULL) return -ENOMEM; kfree(bo->metadata); bo->metadata_flags = flags; bo->metadata = buffer; bo->metadata_size = metadata_size; return 0; } int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer, size_t buffer_size, uint32_t *metadata_size, uint64_t *flags) { if (!buffer && !metadata_size) return -EINVAL; if (buffer) { if (buffer_size < bo->metadata_size) return -EINVAL; if (bo->metadata_size) memcpy(buffer, bo->metadata, bo->metadata_size); } if (metadata_size) *metadata_size = bo->metadata_size; if (flags) *flags = bo->metadata_flags; return 0; } void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, bool evict, struct ttm_mem_reg *new_mem) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct amdgpu_bo *abo; struct ttm_mem_reg *old_mem = &bo->mem; if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) return; abo = container_of(bo, struct amdgpu_bo, tbo); amdgpu_vm_bo_invalidate(adev, abo); amdgpu_bo_kunmap(abo); /* remember the eviction */ if (evict) atomic64_inc(&adev->num_evictions); /* update statistics */ if (!new_mem) return; /* move_notify is called before move happens */ amdgpu_update_memory_usage(adev, &bo->mem, new_mem); trace_amdgpu_ttm_bo_move(abo, new_mem->mem_type, old_mem->mem_type); } int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct amdgpu_bo *abo; unsigned long offset, size; int r; if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) return 0; abo = container_of(bo, struct amdgpu_bo, tbo); /* Remember that this BO was accessed by the CPU */ abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; if (bo->mem.mem_type != TTM_PL_VRAM) return 0; size = bo->mem.num_pages << PAGE_SHIFT; offset = bo->mem.start << PAGE_SHIFT; if ((offset + size) <= adev->mc.visible_vram_size) return 0; /* Can't move a pinned BO to visible VRAM */ if (abo->pin_count > 0) return -EINVAL; /* hurrah the memory is not visible ! */ atomic64_inc(&adev->num_vram_cpu_page_faults); amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT); /* Avoid costly evictions; only set GTT as a busy placement */ abo->placement.num_busy_placement = 1; abo->placement.busy_placement = &abo->placements[1]; r = ttm_bo_validate(bo, &abo->placement, false, false); if (unlikely(r != 0)) return r; offset = bo->mem.start << PAGE_SHIFT; /* this should never happen */ if (bo->mem.mem_type == TTM_PL_VRAM && (offset + size) > adev->mc.visible_vram_size) return -EINVAL; return 0; } /** * amdgpu_bo_fence - add fence to buffer object * * @bo: buffer object in question * @fence: fence to add * @shared: true if fence should be added shared * */ void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence, bool shared) { struct reservation_object *resv = bo->tbo.resv; if (shared) reservation_object_add_shared_fence(resv, fence); else reservation_object_add_excl_fence(resv, fence); } /** * amdgpu_bo_gpu_offset - return GPU offset of bo * @bo: amdgpu object for which we query the offset * * Returns current GPU offset of the object. * * Note: object should either be pinned or reserved when calling this * function, it might be useful to add check for this for debugging. */ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo) { WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM); WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_TT && !amdgpu_ttm_is_bound(bo->tbo.ttm)); WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) && !bo->pin_count); WARN_ON_ONCE(bo->tbo.mem.start == AMDGPU_BO_INVALID_OFFSET); WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_VRAM && !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)); return bo->tbo.offset; }