tjh.dev / kernel
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drm/amdkfd: Align expected_queue_size to PAGE_SIZE

The AQL queue size can be 4K, but the minimum buffer object (BO)
allocation size is PAGE_SIZE. On systems with a page size larger
than 4K, the expected queue size does not match the allocated BO
size, causing queue creation to fail.

Align the expected queue size to PAGE_SIZE so that it matches the
allocated BO size and allows queue creation to succeed.

Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Donet Tom <donettom@linux.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

authored by

Donet Tom and committed by
Alex Deucher b01cd158 3cfe23b6

+2 -2
+2 -2
drivers/gpu/drm/amd/amdkfd/kfd_queue.c
··· 249 249 topo_dev->node_props.gfx_target_version < 90000) 250 250 /* metadata_queue_size not supported on GFX7/GFX8 */ 251 251 expected_queue_size = 252 - properties->queue_size / 2; 252 + PAGE_ALIGN(properties->queue_size / 2); 253 253 else 254 254 expected_queue_size = 255 - properties->queue_size + properties->metadata_queue_size; 255 + PAGE_ALIGN(properties->queue_size + properties->metadata_queue_size); 256 256 257 257 vm = drm_priv_to_vm(pdd->drm_priv); 258 258 err = amdgpu_bo_reserve(vm->root.bo, false);