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drm/ttm: remove available_caching

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Instead of letting TTM make an educated guess based on
some mask all drivers should just specify what caching
they want for their CPU mappings.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/390207/
This commit is contained in:
Christian König
2020-09-11 16:01:21 +02:00
parent 5839172f09
commit 9c3006a4cc
15 changed files with 11 additions and 46 deletions
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8
drivers/gpu/drm/ttm/ttm_bo.c
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@@ -910,11 +910,8 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
if (!man || !ttm_resource_manager_used(man))
return -EBUSY;
if ((place->flags & man->available_caching) == 0)
return -EBUSY;
cur_flags = place->flags & man->available_caching;
cur_flags = ttm_bo_select_caching(man, bo->mem.placement, cur_flags);
cur_flags = ttm_bo_select_caching(man, bo->mem.placement,
place->flags);
cur_flags |= place->flags & ~TTM_PL_MASK_CACHING;
mem->mem_type = place->mem_type;
@@ -1432,7 +1429,6 @@ static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
* Other types need to be driver / IOCTL initialized.
*/
man->use_tt = true;
man->available_caching = TTM_PL_MASK_CACHING;
ttm_resource_manager_init(man, 0);
ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);