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| author |   Philip Yang <Philip.Yang@amd.com> | 2025-01-29 12:37:30 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2025-02-17 14:09:29 -0500 |
| commit | e7a477735f1771b9a9346a5fbd09d7ff0641723a (patch) | |
| tree | 8bf814856f3a8f1c2e99a2b0a6ba937eccc6cb00 | |
| parent | drm/amdgpu: Introduce funcs for generating cper record (diff) | |
| download | wireguard-linux-e7a477735f1771b9a9346a5fbd09d7ff0641723a.tar.xz wireguard-linux-e7a477735f1771b9a9346a5fbd09d7ff0641723a.zip | |
drm/amdkfd: Fix user queue validation on Gfx7/8
To workaround queue full h/w issue on Gfx7/8, when application create
AQL queue, the ring buffer bo allocate size is queue_size/2 and
map queue_size ring buffer to GPU in 2 pieces using 2 attachments, each
attachment map size is queue_size/2, with same ring_bo backing memory.
For Gfx7/8, user queue buffer validation should use queue_size/2 to
verify ring_bo allocation and mapping size.
Fixes: 68e599db7a54 ("drm/amdkfd: Validate user queue buffers")
Suggested-by: Tomáš Trnka <trnka@scm.com>
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_queue.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_queue.c index ecccd7adbab4..62c635e9d1aa 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_queue.c @@ -233,6 +233,7 @@ void kfd_queue_buffer_put(struct amdgpu_bo **bo) int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_properties *properties) { struct kfd_topology_device *topo_dev; + u64 expected_queue_size; struct amdgpu_vm *vm; u32 total_cwsr_size; int err; @@ -241,6 +242,15 @@ int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_prope if (!topo_dev) return -EINVAL; + /* AQL queues on GFX7 and GFX8 appear twice their actual size */ + if (properties->type == KFD_QUEUE_TYPE_COMPUTE && + properties->format == KFD_QUEUE_FORMAT_AQL && + topo_dev->node_props.gfx_target_version >= 70000 && + topo_dev->node_props.gfx_target_version < 90000) + expected_queue_size = properties->queue_size / 2; + else + expected_queue_size = properties->queue_size; + vm = drm_priv_to_vm(pdd->drm_priv); err = amdgpu_bo_reserve(vm->root.bo, false); if (err) @@ -255,7 +265,7 @@ int kfd_queue_acquire_buffers(struct kfd_process_device *pdd, struct queue_prope goto out_err_unreserve; err = kfd_queue_buffer_get(vm, (void *)properties->queue_address, - &properties->ring_bo, properties->queue_size); + &properties->ring_bo, expected_queue_size); if (err) goto out_err_unreserve; |