From f2bd8a0ed7e79579d61cea01bab2dfb09099d379 Mon Sep 17 00:00:00 2001 From: Andrey Grodzovsky Date: Fri, 26 Jul 2019 09:24:35 -0400 Subject: [PATCH] drm/amdgpu: Fix amdgpu_display_supported_domains logic. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add restriction to dissallow GTT domain if the relevant BO doesn't have USWC flag set to avoid the APU hang scenario. Signed-off-by: Andrey Grodzovsky Reviewed-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 16 +++++++++++----- drivers/gpu/drm/amd/amdgpu/amdgpu_display.h | 3 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 12 ++++++------ drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 6 files changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index 8b06150080aa..dc65592f41b4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -191,7 +191,8 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc, } if (!adev->enable_virtual_display) { - r = amdgpu_bo_pin(new_abo, amdgpu_display_supported_domains(adev)); + r = amdgpu_bo_pin(new_abo, + amdgpu_display_supported_domains(adev, new_abo->flags)); if (unlikely(r != 0)) { DRM_ERROR("failed to pin new abo buffer before flip\n"); goto unreserve; @@ -495,20 +496,25 @@ static const struct drm_framebuffer_funcs amdgpu_fb_funcs = { .create_handle = drm_gem_fb_create_handle, }; -uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev) +uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev, + uint64_t bo_flags) { uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM; #if defined(CONFIG_DRM_AMD_DC) /* - * if amdgpu_bo_validate_uswc returns false it means that USWC mappings + * if amdgpu_bo_support_uswc returns false it means that USWC mappings * is not supported for this board. But this mapping is required * to avoid hang caused by placement of scanout BO in GTT on certain * APUs. So force the BO placement to VRAM in case this architecture * will not allow USWC mappings. + * Also, don't allow GTT domain if the BO doens't have USWC falg set. */ - if (adev->asic_type >= CHIP_CARRIZO && adev->asic_type <= CHIP_RAVEN && - adev->flags & AMD_IS_APU && amdgpu_bo_support_uswc(0) && + if (adev->asic_type >= CHIP_CARRIZO && + adev->asic_type <= CHIP_RAVEN && + (adev->flags & AMD_IS_APU) && + (bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) && + amdgpu_bo_support_uswc(bo_flags) && amdgpu_device_asic_has_dc_support(adev->asic_type)) domain |= AMDGPU_GEM_DOMAIN_GTT; #endif diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h index 06b922fe0d42..3620b24785e1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.h @@ -38,7 +38,8 @@ int amdgpu_display_freesync_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); void amdgpu_display_update_priority(struct amdgpu_device *adev); -uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev); +uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev, + uint64_t bo_flags); struct drm_framebuffer * amdgpu_display_user_framebuffer_create(struct drm_device *dev, struct drm_file *file_priv, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c index 489041df1f45..974472fdfc6d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c @@ -299,7 +299,7 @@ static int amdgpu_dma_buf_begin_cpu_access(struct dma_buf *dma_buf, struct amdgpu_bo *bo = gem_to_amdgpu_bo(dma_buf->priv); struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); struct ttm_operation_ctx ctx = { true, false }; - u32 domain = amdgpu_display_supported_domains(adev); + u32 domain = amdgpu_display_supported_domains(adev, bo->flags); int ret; bool reads = (direction == DMA_BIDIRECTIONAL || direction == DMA_FROM_DEVICE); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 430c56f9544a..143753d237e7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -131,6 +131,10 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev, int aligned_size, size; int height = mode_cmd->height; u32 cpp; + u64 flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | + AMDGPU_GEM_CREATE_VRAM_CLEARED | + AMDGPU_GEM_CREATE_CPU_GTT_USWC; info = drm_get_format_info(adev->ddev, mode_cmd); cpp = info->cpp[0]; @@ -138,15 +142,11 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev, /* need to align pitch with crtc limits */ mode_cmd->pitches[0] = amdgpu_align_pitch(adev, mode_cmd->width, cpp, fb_tiled); - domain = amdgpu_display_supported_domains(adev); + domain = amdgpu_display_supported_domains(adev, flags); height = ALIGN(mode_cmd->height, 8); size = mode_cmd->pitches[0] * height; aligned_size = ALIGN(size, PAGE_SIZE); - ret = amdgpu_gem_object_create(adev, aligned_size, 0, domain, - AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | - AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | - AMDGPU_GEM_CREATE_VRAM_CLEARED | - AMDGPU_GEM_CREATE_CPU_GTT_USWC, + ret = amdgpu_gem_object_create(adev, aligned_size, 0, domain, flags, ttm_bo_type_kernel, NULL, &gobj); if (ret) { pr_err("failed to allocate framebuffer (%d)\n", aligned_size); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index fb291366d5ad..ddb07e9a71ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -765,7 +765,7 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv, args->size = (u64)args->pitch * args->height; args->size = ALIGN(args->size, PAGE_SIZE); domain = amdgpu_bo_get_preferred_pin_domain(adev, - amdgpu_display_supported_domains(adev)); + amdgpu_display_supported_domains(adev, flags)); r = amdgpu_gem_object_create(adev, args->size, 0, domain, flags, ttm_bo_type_device, NULL, &gobj); if (r) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 356d77387c42..94438117bcda 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4454,7 +4454,7 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane, } if (plane->type != DRM_PLANE_TYPE_CURSOR) - domain = amdgpu_display_supported_domains(adev); + domain = amdgpu_display_supported_domains(adev, rbo->flags); else domain = AMDGPU_GEM_DOMAIN_VRAM; -- 2.11.0