diff options
| author | Christian König <christian.koenig@amd.com> | 2020-09-30 10:38:48 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-10-15 12:50:40 +0200 |
| commit | 1b4ea4c5980ff3a64607166298269c30a9671d33 (patch) | |
| tree | c96db402414813d2002866a7533024ec512c655b /drivers/gpu/drm/radeon | |
| parent | 070c7fa58bce986eb7a504390dd429edcb068f44 (diff) | |
drm/ttm: set the tt caching state at creation time
All drivers can determine the tt caching state at creation time,
no need to do this on the fly during every validation.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/394253/
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 63e38b05a5bc5..130a7cea35c32 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -546,7 +546,7 @@ static int radeon_ttm_backend_bind(struct ttm_bo_device *bdev, WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", ttm->num_pages, bo_mem, ttm); } - if (ttm->caching_state == tt_cached) + if (ttm->caching == ttm_cached) flags |= RADEON_GART_PAGE_SNOOP; r = radeon_gart_bind(rdev, gtt->offset, ttm->num_pages, ttm->pages, gtt->ttm.dma_address, flags); @@ -590,6 +590,10 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo, { struct radeon_device *rdev; struct radeon_ttm_tt *gtt; + enum ttm_caching caching; + struct radeon_bo *rbo; + + rbo = container_of(bo, struct radeon_bo, tbo); rdev = radeon_get_rdev(bo->bdev); #if IS_ENABLED(CONFIG_AGP) @@ -603,7 +607,15 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo, if (gtt == NULL) { return NULL; } - if (ttm_dma_tt_init(>t->ttm, bo, page_flags)) { + + if (rbo->flags & RADEON_GEM_GTT_UC) + caching = ttm_uncached; + else if (rbo->flags & RADEON_GEM_GTT_WC) + caching = ttm_write_combined; + else + caching = ttm_cached; + + if (ttm_dma_tt_init(>t->ttm, bo, page_flags, caching)) { kfree(gtt); return NULL; } |