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anv: Reduce memory pool usage in MTL and ARL

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Those platforms requires aux map with 1MB alignment, for slab that
means that any buffer needs to have size of multiple of 1MB what
causes a lot of memory to be wasted causing it to run out of memory
when running multiple GPU applications.

Fixes: ea18572ff2 ("anv: Add support for ANV_BO_ALLOC_AUX_CCS in anv_slab_bo")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34817>
This commit is contained in:
José Roberto de Souza 2025-05-05 07:14:52 -07:00 • committed by Marge Bot
parent 7c78c76181
commit a82b569649
1 changed files with 9 additions and 0 deletions
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9
src/intel/vulkan/anv_slab_bo.c
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@ -123,6 +123,15 @@ anv_slab_bo_alloc(struct anv_device *device, const char *name, uint64_t requeste
if (slab_heap == ANV_BO_SLAB_NOT_SUPPORTED)
return NULL;
/* Don't always use slab if AUX_TT_ALIGNED is required and AUX alignment is
* >= 1MB, enabling this causes a high memory consumption that causes out
* of memory when running several parallel GPU applications.
*/
if ((alloc_flags & ANV_BO_ALLOC_AUX_TT_ALIGNED) &&
(intel_aux_map_get_alignment(device->aux_map_ctx) >= 1024 * 1024) &&
(requested_size < (1024 * 1024 / 2)))
return NULL;
const unsigned num_slab_allocator = ARRAY_SIZE(device->bo_slabs);
struct pb_slabs *last_slab = &device->bo_slabs[num_slab_allocator - 1];
const uint64_t max_slab_entry_size = 1 << (last_slab->min_order + last_slab->num_orders - 1);