drm/amdgpu: be explicit about cpu vram access for driver BOs (v2)

For kernel driver BOs, be explicit about whether we need
vram access up front.  This avoids unecessary migrations and
avoids using visible vram for buffers were it's not needed.

v2: line wrap fixes

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

12 files changed, 51 insertions, 20 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 42d1a22c119942..6ff6ae945794a2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -244,7 +244,8 @@ static int amdgpu_vram_scratch_init(struct amdgpu_device *adev)
 
 	if (adev->vram_scratch.robj == NULL) {
 		r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE,
-				     PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM, 0,
+				     PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
+				     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 				     NULL, &adev->vram_scratch.robj);
 		if (r) {
 			return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 81b821247dde5c..8a122b1b778610 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -126,8 +126,8 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev,
 	aligned_size = ALIGN(size, PAGE_SIZE);
 	ret = amdgpu_gem_object_create(adev, aligned_size, 0,
 				       AMDGPU_GEM_DOMAIN_VRAM,
-				       0, true,
-				       &gobj);
+				       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+				       true, &gobj);
 	if (ret) {
 		printk(KERN_ERR "failed to allocate framebuffer (%d)\n",
 		       aligned_size);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index e02db0b2e8393e..cbd3a486c5c2c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -125,7 +125,8 @@ int amdgpu_gart_table_vram_alloc(struct amdgpu_device *adev)
 
 	if (adev->gart.robj == NULL) {
 		r = amdgpu_bo_create(adev, adev->gart.table_size,
-				     PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM, 0,
+				     PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
+				     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 				     NULL, &adev->gart.robj);
 		if (r) {
 			return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 4b36e779622f94..5839fab374bf62 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -656,7 +656,8 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv,
 
 	r = amdgpu_gem_object_create(adev, args->size, 0,
 				     AMDGPU_GEM_DOMAIN_VRAM,
-				     0, ttm_bo_type_device,
+				     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+				     ttm_bo_type_device,
 				     &gobj);
 	if (r)
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 399143541d8a2c..b5abd5cde413ff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -859,7 +859,8 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
 	amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
 
 	r = amdgpu_bo_create(adev, 256 * 1024, PAGE_SIZE, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0,
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
 			     NULL, &adev->stollen_vga_memory);
 	if (r) {
 		return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 3ad4a83c418fed..2cf6c6b06e3b15 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -154,7 +154,9 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
 	bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
 		 +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE;
 	r = amdgpu_bo_create(adev, bo_size, PAGE_SIZE, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &adev->uvd.vcpu_bo);
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			     NULL, &adev->uvd.vcpu_bo);
 	if (r) {
 		dev_err(adev->dev, "(%d) failed to allocate UVD bo\n", r);
 		return r;
@@ -901,7 +903,9 @@ int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
 	int r, i;
 
 	r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &bo);
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			     NULL, &bo);
 	if (r)
 		return r;
 
@@ -948,7 +952,9 @@ int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
 	int r, i;
 
 	r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &bo);
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			     NULL, &bo);
 	if (r)
 		return r;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index 1a984c934b1f27..76982438d1c6ba 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -141,7 +141,9 @@ int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
 	/* allocate firmware, stack and heap BO */
 
 	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &adev->vce.vcpu_bo);
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			     NULL, &adev->vce.vcpu_bo);
 	if (r) {
 		dev_err(adev->dev, "(%d) failed to allocate VCE bo\n", r);
 		return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 5848564d3d6662..f68b7cdc370a86 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1099,7 +1099,9 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
 
 		r = amdgpu_bo_create(adev, AMDGPU_VM_PTE_COUNT * 8,
 				     AMDGPU_GPU_PAGE_SIZE, true,
-				     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &pt);
+				     AMDGPU_GEM_DOMAIN_VRAM,
+				     AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
+				     NULL, &pt);
 		if (r)
 			goto error_free;
 
@@ -1299,7 +1301,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 	vm->page_directory_fence = NULL;
 
 	r = amdgpu_bo_create(adev, pd_size, align, true,
-			     AMDGPU_GEM_DOMAIN_VRAM, 0,
+			     AMDGPU_GEM_DOMAIN_VRAM,
+			     AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
 			     NULL, &vm->page_directory);
 	if (r)
 		return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/fiji_smc.c b/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
index 493c8c9c7faa77..322edea6585787 100644
--- a/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/fiji_smc.c
@@ -762,7 +762,9 @@ int fiji_smu_init(struct amdgpu_device *adev)
 
 	/* Allocate FW image data structure and header buffer */
 	ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
-				true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, toc_buf);
+			       true, AMDGPU_GEM_DOMAIN_VRAM,
+			       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			       NULL, toc_buf);
 	if (ret) {
 		DRM_ERROR("Failed to allocate memory for TOC buffer\n");
 		return -ENOMEM;
@@ -770,7 +772,9 @@ int fiji_smu_init(struct amdgpu_device *adev)
 
 	/* Allocate buffer for SMU internal buffer */
 	ret = amdgpu_bo_create(adev, smu_internal_buffer_size, PAGE_SIZE,
-				true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, smu_buf);
+			       true, AMDGPU_GEM_DOMAIN_VRAM,
+			       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			       NULL, smu_buf);
 	if (ret) {
 		DRM_ERROR("Failed to allocate memory for SMU internal buffer\n");
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index 517a68f82ec3b1..4bd1e5cf65ca81 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3786,7 +3786,9 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
 		/* save restore block */
 		if (adev->gfx.rlc.save_restore_obj == NULL) {
 			r = amdgpu_bo_create(adev, dws * 4, PAGE_SIZE, true,
-					     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &adev->gfx.rlc.save_restore_obj);
+					     AMDGPU_GEM_DOMAIN_VRAM,
+					     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+					     NULL, &adev->gfx.rlc.save_restore_obj);
 			if (r) {
 				dev_warn(adev->dev, "(%d) create RLC sr bo failed\n", r);
 				return r;
@@ -3827,7 +3829,9 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
 
 		if (adev->gfx.rlc.clear_state_obj == NULL) {
 			r = amdgpu_bo_create(adev, dws * 4, PAGE_SIZE, true,
-					     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &adev->gfx.rlc.clear_state_obj);
+					     AMDGPU_GEM_DOMAIN_VRAM,
+					     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+					     NULL, &adev->gfx.rlc.clear_state_obj);
 			if (r) {
 				dev_warn(adev->dev, "(%d) create RLC c bo failed\n", r);
 				gfx_v7_0_rlc_fini(adev);
@@ -3864,7 +3868,9 @@ static int gfx_v7_0_rlc_init(struct amdgpu_device *adev)
 	if (adev->gfx.rlc.cp_table_size) {
 		if (adev->gfx.rlc.cp_table_obj == NULL) {
 			r = amdgpu_bo_create(adev, adev->gfx.rlc.cp_table_size, PAGE_SIZE, true,
-					     AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &adev->gfx.rlc.cp_table_obj);
+					     AMDGPU_GEM_DOMAIN_VRAM,
+					     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+					     NULL, &adev->gfx.rlc.cp_table_obj);
 			if (r) {
 				dev_warn(adev->dev, "(%d) create RLC cp table bo failed\n", r);
 				gfx_v7_0_rlc_fini(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
index c6f1e2f12b5f7f..c900aa942adef4 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c
@@ -623,7 +623,9 @@ int iceland_smu_init(struct amdgpu_device *adev)
 
 	/* Allocate FW image data structure and header buffer */
 	ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
-			       true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, toc_buf);
+			       true, AMDGPU_GEM_DOMAIN_VRAM,
+			       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			       NULL, toc_buf);
 	if (ret) {
 		DRM_ERROR("Failed to allocate memory for TOC buffer\n");
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_smc.c b/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
index 5fc53a40c7ac19..1f5ac941a61081 100644
--- a/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
+++ b/drivers/gpu/drm/amd/amdgpu/tonga_smc.c
@@ -761,7 +761,9 @@ int tonga_smu_init(struct amdgpu_device *adev)
 
 	/* Allocate FW image data structure and header buffer */
 	ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE,
-				true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, toc_buf);
+			       true, AMDGPU_GEM_DOMAIN_VRAM,
+			       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			       NULL, toc_buf);
 	if (ret) {
 		DRM_ERROR("Failed to allocate memory for TOC buffer\n");
 		return -ENOMEM;
@@ -769,7 +771,9 @@ int tonga_smu_init(struct amdgpu_device *adev)
 
 	/* Allocate buffer for SMU internal buffer */
 	ret = amdgpu_bo_create(adev, smu_internal_buffer_size, PAGE_SIZE,
-				true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, smu_buf);
+			       true, AMDGPU_GEM_DOMAIN_VRAM,
+			       AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+			       NULL, smu_buf);
 	if (ret) {
 		DRM_ERROR("Failed to allocate memory for SMU internal buffer\n");
 		return -ENOMEM;