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drm/amdkfd: Add CU-masking ioctl to KFD

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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>
This commit is contained in:
Felix Kuehling
2018-07-14 19:05:59 -04:00
committed by Oded Gabbay
parent a7fe68a1e8
commit 39e7f33186
9 changed files with 219 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
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@@ -422,6 +422,9 @@ struct queue_properties {
uint32_t ctl_stack_size;
uint64_t tba_addr;
uint64_t tma_addr;
/* Relevant for CU */
uint32_t cu_mask_count; /* Must be a multiple of 32 */
uint32_t *cu_mask;
};
/**
@@ -872,6 +875,8 @@ int pqm_create_queue(struct process_queue_manager *pqm,
int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid);
int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
struct queue_properties *p);
int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid,
struct queue_properties *p);
struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm,
unsigned int qid);