1 files changed, 34 insertions, 10 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 535650967b1a..6d520a3eec40 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;
@@ -204,7 +205,7 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
 		goto unpin;
 	}
 
-	r = reservation_object_get_fences_rcu(new_abo->tbo.resv, &work->excl,
+	r = dma_resv_get_fences_rcu(new_abo->tbo.base.resv, &work->excl,
 					      &work->shared_count,
 					      &work->shared);
 	if (unlikely(r != 0)) {
@@ -369,11 +370,13 @@ void amdgpu_display_print_display_setup(struct drm_device *dev)
 	struct amdgpu_connector *amdgpu_connector;
 	struct drm_encoder *encoder;
 	struct amdgpu_encoder *amdgpu_encoder;
+	struct drm_connector_list_iter iter;
 	uint32_t devices;
 	int i = 0;
 
+	drm_connector_list_iter_begin(dev, &iter);
 	DRM_INFO("AMDGPU Display Connectors\n");
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+	drm_for_each_connector_iter(connector, &iter) {
 		amdgpu_connector = to_amdgpu_connector(connector);
 		DRM_INFO("Connector %d:\n", i);
 		DRM_INFO("  %s\n", connector->name);
@@ -437,6 +440,7 @@ void amdgpu_display_print_display_setup(struct drm_device *dev)
 		}
 		i++;
 	}
+	drm_connector_list_iter_end(&iter);
 }
 
 /**
@@ -495,15 +499,37 @@ 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 (adev->asic_type >= CHIP_CARRIZO && adev->asic_type < CHIP_RAVEN &&
-	    adev->flags & AMD_IS_APU &&
-	    amdgpu_device_asic_has_dc_support(adev->asic_type))
-		domain |= AMDGPU_GEM_DOMAIN_GTT;
+	/*
+	 * 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 ((bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) &&
+	    amdgpu_bo_support_uswc(bo_flags) &&
+	    amdgpu_device_asic_has_dc_support(adev->asic_type)) {
+		switch (adev->asic_type) {
+		case CHIP_CARRIZO:
+		case CHIP_STONEY:
+			domain |= AMDGPU_GEM_DOMAIN_GTT;
+			break;
+		case CHIP_RAVEN:
+			/* enable S/G on PCO and RV2 */
+			if (adev->rev_id >= 0x8 || adev->pdev->device == 0x15d8)
+				domain |= AMDGPU_GEM_DOMAIN_GTT;
+			break;
+		default:
+			break;
+		}
+	}
 #endif
 
 	return domain;
@@ -674,7 +700,6 @@ bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 	struct amdgpu_encoder *amdgpu_encoder;
 	struct drm_connector *connector;
-	struct amdgpu_connector *amdgpu_connector;
 	u32 src_v = 1, dst_v = 1;
 	u32 src_h = 1, dst_h = 1;
 
@@ -686,7 +711,6 @@ bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
 			continue;
 		amdgpu_encoder = to_amdgpu_encoder(encoder);
 		connector = amdgpu_get_connector_for_encoder(encoder);
-		amdgpu_connector = to_amdgpu_connector(connector);
 
 		/* set scaling */
 		if (amdgpu_encoder->rmx_type == RMX_OFF)