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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-07-14 19:05:59 -0400 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-07-14 19:05:59 -0400 |
| commit | 39e7f331864d2b9e30d5f3fd2121e182b2c9c8a9 (patch) | |
| tree | 148394727c9e0b6eb318c0a3dff96e6992dffefb /drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | |
| parent | a7fe68a1e8e4bce007505f729bc33e427c540386 (diff) | |
| download | blackbird-op-linux-39e7f331864d2b9e30d5f3fd2121e182b2c9c8a9.tar.gz blackbird-op-linux-39e7f331864d2b9e30d5f3fd2121e182b2c9c8a9.zip | |
drm/amdkfd: Add CU-masking ioctl to KFD
CU-masking allows a KFD client to control the set of CUs used by a
user mode queue for executing compute dispatches. This can be used
for optimizing the partitioning of the GPU and minimize conflicts
between concurrent tasks.
Signed-off-by: Flora Cui <flora.cui@amd.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index eb4e5fb4f2f2..c8cad9c078ae 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -325,6 +325,8 @@ int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid) if (retval != -ETIME) goto err_destroy_queue; } + kfree(pqn->q->properties.cu_mask); + pqn->q->properties.cu_mask = NULL; uninit_queue(pqn->q); } @@ -365,6 +367,34 @@ int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, return 0; } +int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid, + struct queue_properties *p) +{ + int retval; + struct process_queue_node *pqn; + + pqn = get_queue_by_qid(pqm, qid); + if (!pqn) { + pr_debug("No queue %d exists for update operation\n", qid); + return -EFAULT; + } + + /* Free the old CU mask memory if it is already allocated, then + * allocate memory for the new CU mask. + */ + kfree(pqn->q->properties.cu_mask); + + pqn->q->properties.cu_mask_count = p->cu_mask_count; + pqn->q->properties.cu_mask = p->cu_mask; + + retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm, + pqn->q); + if (retval != 0) + return retval; + + return 0; +} + struct kernel_queue *pqm_get_kernel_queue( struct process_queue_manager *pqm, unsigned int qid) |
