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anv: Track BOs that need a write-combined mapping

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v2: simplify logic a bit (Lionel)

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18841>
This commit is contained in:
Mark Janes
2020-08-24 15:41:58 -07:00
committed by Marge Bot
parent 97850c0bf0
commit 755b413ffa
2 changed files with 13 additions and 0 deletions
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4
src/intel/vulkan/anv_allocator.c
View File

@@ -1503,6 +1503,7 @@ anv_device_alloc_bo(struct anv_device *device,
(alloc_flags & ANV_BO_ALLOC_CLIENT_VISIBLE_ADDRESS) != 0,
.has_implicit_ccs = ccs_size > 0 ||
(device->info->verx10 >= 125 && !(alloc_flags & ANV_BO_ALLOC_NO_LOCAL_MEM)),
.map_wc = alloc_flags & ANV_BO_ALLOC_WRITE_COMBINE,
};
if (alloc_flags & ANV_BO_ALLOC_MAPPED) {
@@ -1572,6 +1573,9 @@ anv_device_map_bo(struct anv_device *device,
assert(!bo->from_host_ptr);
assert(size > 0);
if (bo->map_wc)
gem_flags |= I915_MMAP_WC;
void *map = anv_gem_mmap(device, bo->gem_handle, offset, size, gem_flags);
if (unlikely(map == MAP_FAILED))
return vk_errorf(device, VK_ERROR_MEMORY_MAP_FAILED, "mmap failed: %m");

9
src/intel/vulkan/anv_private.h
View File

@@ -545,6 +545,9 @@ struct anv_bo {
/** True if this BO has implicit CCS data attached to it */
bool has_implicit_ccs:1;
/** True if this BO should be mapped with Write Combine enabled */
bool map_wc:1;
};
static inline struct anv_bo *
@@ -1268,6 +1271,12 @@ enum anv_bo_alloc_flags {
/** For non device local allocations */
ANV_BO_ALLOC_NO_LOCAL_MEM = (1 << 11),
/** For local memory, ensure that the writes are combined.
*
* Should be faster for bo pools, which write but do not read
*/
ANV_BO_ALLOC_WRITE_COMBINE = (1 << 12),
};
VkResult anv_device_alloc_bo(struct anv_device *device,