[PATCH] drm/amdgpu: Fix amdgpu_display_supported_domains logic.
Andrey Grodzovsky
andrey.grodzovsky at amd.com
Fri Jul 26 13:28:12 UTC 2019
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 <andrey.grodzovsky at amd.com>
---
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 73045a3..4a8b1b1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -189,7 +189,8 @@ 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;
@@ -493,20 +494,25 @@ 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 06b922f..3620b24 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 4711cf1..6770eb3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
@@ -301,7 +301,7 @@ 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 bf0c61b..4a6f29e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -130,21 +130,21 @@ 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;
cpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0);
/* 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 eeed089..e7af35c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -761,7 +761,7 @@ 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 066f04b..0401691 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4414,7 +4414,7 @@ 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;
--
2.7.4
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