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iris/bufmgr: Add I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS for vram mappable buffers 

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16739>
This commit is contained in:
Jordan Justen 2022-05-16 10:43:15 -07:00 committed by Marge Bot
parent fae88d8791
commit ab4939dfff
1 changed files with 4 additions and 5 deletions
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9
src/gallium/drivers/iris/iris_bufmgr.c
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@ -997,11 +997,10 @@ alloc_fresh_bo(struct iris_bufmgr *bufmgr, uint64_t bo_size, unsigned flags)
.extensions = (uintptr_t)&ext_regions,
};
/* TODO: Add I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS to create.flags
* for IRIS_HEAP_DEVICE_LOCAL_PREFERRED when small BAR uapi is
* stabilized.
*/
assert(bufmgr->all_vram_mappable);
if (!bufmgr->all_vram_mappable &&
bo->real.heap == IRIS_HEAP_DEVICE_LOCAL_PREFERRED) {
create.flags |= I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS;
}
/* It should be safe to use GEM_CREATE_EXT without checking, since we are
* in the side of the branch where discrete memory is available. So we