diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index bf79b73e1538..d1aa291b2638 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -363,11 +363,31 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, 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 + */ + +#warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \ + thanks to write-combining + + 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 */ @@ -386,6 +406,11 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, if (unlikely(r != 0)) return r; + bo->tbo.priority = ilog2(bo->tbo.num_pages); + if (kernel) + bo->tbo.priority *= 2; + bo->tbo.priority = min(bo->tbo.priority, (unsigned)(TTM_MAX_BO_PRIORITY - 1)); + if (flags & AMDGPU_GEM_CREATE_VRAM_CLEARED && bo->tbo.mem.placement & TTM_PL_FLAG_VRAM) { struct dma_fence *fence; @@ -408,7 +433,8 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, return 0; fail_unreserve: - ww_mutex_unlock(&bo->tbo.resv->lock); + if (!resv) + ww_mutex_unlock(&bo->tbo.resv->lock); amdgpu_bo_unref(&bo); return r; } @@ -472,7 +498,16 @@ int amdgpu_bo_create(struct amdgpu_device *adev, 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); } @@ -849,6 +884,7 @@ int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer, } 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); @@ -861,6 +897,10 @@ void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, abo = container_of(bo, struct amdgpu_bo, tbo); amdgpu_vm_bo_invalidate(adev, abo); + /* remember the eviction */ + if (evict) + atomic64_inc(&adev->num_evictions); + /* update statistics */ if (!new_mem) return; |