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anv: Always grow fixed address pools by 2MB in platforms that there is a performance gain

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MTL and newer integrated platforms has a performance gain when using
transparent huge pages, because of the fixed address requirement
we can't use slab for this case but we can change the initial pool
size to 2MB so all allocations get the transparent huge page
optimization.

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/33558>
This commit is contained in:
José Roberto de Souza 2025-03-14 09:31:04 -07:00 • committed by Marge Bot
parent 7361b3287f
commit dde91cf9cb
1 changed files with 10 additions and 1 deletions
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11
src/intel/vulkan/anv_allocator.c
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@ -483,6 +483,12 @@ anv_block_pool_map(struct anv_block_pool *pool, int32_t offset, uint32_t size)
return bo->map + (offset - bo_offset);
}
static bool
anv_device_has_perf_improvement_with_2mb_pages(struct anv_device *device)
{
return device->info->verx10 >= 110;
}
/** Grows and re-centers the block pool.
*
* We grow the block pool in one or both directions in such a way that the
@ -647,6 +653,8 @@ anv_state_pool_init(struct anv_state_pool *pool,
{
uint32_t initial_size = MAX2(params->block_size * 16,
device->info->mem_alignment);
if (anv_device_has_perf_improvement_with_2mb_pages(device))
initial_size = MAX2(initial_size, 2 * 1024 * 1024);
VkResult result = anv_block_pool_init(&pool->block_pool, device,
params->name,
@ -1559,7 +1567,8 @@ anv_bo_vma_alloc_or_close(struct anv_device *device,
*
* Only available on ICL+.
*/
if (device->info->ver >= 11 && bo->size >= 1 * 1024 * 1024 && !is_small_heap)
if (anv_device_has_perf_improvement_with_2mb_pages(device) &&
(bo->size >= 1 * 1024 * 1024) && !is_small_heap)
align = MAX2(2 * 1024 * 1024, align);
if (alloc_flags & ANV_BO_ALLOC_FIXED_ADDRESS) {