Re: [PATCH 1/9] drm/ttm: initialize the system domain with defaults

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Am 27.07.20 um 11:42 schrieb daniel@xxxxxxxx:
On Thu, Jul 23, 2020 at 05:16:13PM +0200, Christian König wrote:
Instead of repeating that in each driver.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c    | 3 ---
  drivers/gpu/drm/drm_gem_vram_helper.c      | 3 ---
  drivers/gpu/drm/nouveau/nouveau_bo.c       | 3 ---
  drivers/gpu/drm/qxl/qxl_ttm.c              | 3 ---
  drivers/gpu/drm/radeon/radeon_ttm.c        | 3 ---
  drivers/gpu/drm/ttm/ttm_bo.c               | 2 ++
  drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 2 --
  7 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 0dd5e802091d..e57c49a91b73 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -84,9 +84,6 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
  	switch (type) {
  	case TTM_PL_SYSTEM:
  		/* System memory */
-		man->flags = 0;
-		man->available_caching = TTM_PL_MASK_CACHING;
-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_TT:
  		/* GTT memory  */
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 3296ed3df358..be177afdeb9a 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -1009,9 +1009,6 @@ static int bo_driver_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
  {
  	switch (type) {
  	case TTM_PL_SYSTEM:
-		man->flags = 0;
-		man->available_caching = TTM_PL_MASK_CACHING;
-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_VRAM:
  		man->func = &ttm_bo_manager_func;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 4ccf937df0d0..53af25020bb2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -655,9 +655,6 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
switch (type) {
  	case TTM_PL_SYSTEM:
-		man->flags = 0;
-		man->available_caching = TTM_PL_MASK_CACHING;
-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_VRAM:
  		man->flags = TTM_MEMTYPE_FLAG_FIXED;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 1d8e07b8b19e..e9b8c921c1f0 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -54,9 +54,6 @@ static int qxl_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
  	switch (type) {
  	case TTM_PL_SYSTEM:
  		/* System memory */
-		man->flags = 0;
-		man->available_caching = TTM_PL_MASK_CACHING;
-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_VRAM:
  	case TTM_PL_PRIV:
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index b474781a0920..b4cb75361577 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -76,9 +76,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
  	switch (type) {
  	case TTM_PL_SYSTEM:
  		/* System memory */
-		man->flags = 0;
-		man->available_caching = TTM_PL_MASK_CACHING;
-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_TT:
  		man->func = &ttm_bo_manager_func;
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 7c02ce784805..1f1f9e463265 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1677,6 +1677,8 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
  	 * Initialize the system memory buffer type.
  	 * Other types need to be driver / IOCTL initialized.
  	 */
+	bdev->man[TTM_PL_SYSTEM].available_caching = TTM_PL_MASK_CACHING;
+	bdev->man[TTM_PL_SYSTEM].default_caching = TTM_PL_FLAG_CACHED;
  	ret = ttm_bo_init_mm(bdev, TTM_PL_SYSTEM, 0);
  	if (unlikely(ret != 0))
  		goto out_no_sys;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 1d78187eaba6..00cef1a3a178 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -742,8 +742,6 @@ static int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
  	switch (type) {
  	case TTM_PL_SYSTEM:
  		/* System memory */
-		man->available_caching = TTM_PL_FLAG_CACHED;
Above is CACHED, not CACHING, so needs to stay to overwrite the default.

Crap I missed that. Problem is that I wanted to remove the possibility to init the system domain with different caching attributes.

I don't see how vmwgfx is every going to use this? Thomas do you have any idea what this was good for?

Thanks,
Christian.

With that fixed:

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

-		man->default_caching = TTM_PL_FLAG_CACHED;
  		break;
  	case TTM_PL_VRAM:
  		/* "On-card" video ram */
--
2.17.1

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