[PATCH 1/9] drm/ttm: initialize the system domain with defaults
Hellstrom, Thomas
thomas.hellstrom at intel.com
Mon Jul 27 13:01:44 UTC 2020
On Mon, 2020-07-27 at 14:23 +0200, Christian König wrote:
> Am 27.07.20 um 12:50 schrieb Hellstrom, Thomas:
> > On Mon, 2020-07-27 at 12:39 +0200, Christian König wrote:
> > > Am 27.07.20 um 11:42 schrieb daniel at ffwll.ch:
> > > > 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 at amd.com>
> > > > > ---
> > > > > 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?
> > I interpret that like vmwgfx can't handle any other caching
> > attribute
> > than 'cached'. But I can't see anyone feeding vmwgfx system memory
> > buffers with other caching attributes. In that case, those would be
> > ignored.
>
> Yeah, agree. So any objections to change that setting in vmwgfx?
>
> This way we could have the same settings for all drivers in the
> kernel
> and I don't see why any driver should have something special here.
>
> Christian.
>
No objections from my side, although I figure Roland has the last
saying.
/Thomas
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