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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-07-15 02:05:59 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-07-15 02:05:59 +0300 |
| commit | 39e7f331864d2b9e30d5f3fd2121e182b2c9c8a9 (patch) | |
| tree | 148394727c9e0b6eb318c0a3dff96e6992dffefb /drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c | |
| parent | a7fe68a1e8e4bce007505f729bc33e427c540386 (diff) | |
| download | linux-39e7f331864d2b9e30d5f3fd2121e182b2c9c8a9.tar.xz | |
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_mqd_manager_vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c index 89e4242e43e7..b81fda3754da 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c @@ -43,6 +43,31 @@ static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd) return (struct vi_sdma_mqd *)mqd; } +static void update_cu_mask(struct mqd_manager *mm, void *mqd, + struct queue_properties *q) +{ + struct vi_mqd *m; + uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */ + + if (q->cu_mask_count == 0) + return; + + mqd_symmetrically_map_cu_mask(mm, + q->cu_mask, q->cu_mask_count, se_mask); + + m = get_mqd(mqd); + m->compute_static_thread_mgmt_se0 = se_mask[0]; + m->compute_static_thread_mgmt_se1 = se_mask[1]; + m->compute_static_thread_mgmt_se2 = se_mask[2]; + m->compute_static_thread_mgmt_se3 = se_mask[3]; + + pr_debug("Update cu mask to %#x %#x %#x %#x\n", + m->compute_static_thread_mgmt_se0, + m->compute_static_thread_mgmt_se1, + m->compute_static_thread_mgmt_se2, + m->compute_static_thread_mgmt_se3); +} + static int init_mqd(struct mqd_manager *mm, void **mqd, struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr, struct queue_properties *q) @@ -196,6 +221,8 @@ static int __update_mqd(struct mqd_manager *mm, void *mqd, atc_bit << CP_HQD_CTX_SAVE_CONTROL__ATC__SHIFT | mtype << CP_HQD_CTX_SAVE_CONTROL__MTYPE__SHIFT; + update_cu_mask(mm, mqd, q); + q->is_active = (q->queue_size > 0 && q->queue_address != 0 && q->queue_percent > 0 && |