diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2025-10-10 16:47:02 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-05 16:21:04 -0500 |
| commit | 0030595c3e8b48b32a12b8354ce9dbe00efd632f (patch) | |
| tree | f5ce05d5c3448f6ce72ed9cbef8d8a5fe27c1909 /drivers/gpu/drm/amd/amdgpu | |
| parent | 44b69cf1d35cad4a846208e769b34a648fd637bb (diff) | |
drm/amdgpu: Update AMDGPU_INFO_UQ_FW_AREAS query for sdma
Add a query for sdma queues. Userspace can use this to
query the size of the CSA buffers for sdma user queues.
Proposed userspace:
https://gitlab.freedesktop.org/yogeshmohan/mesa/-/commits/userq_query
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index b02da84ab99d..36fdd1af9d6b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -409,6 +409,24 @@ static int amdgpu_userq_metadata_info_compute(struct amdgpu_device *adev, return ret; } +static int amdgpu_userq_metadata_info_sdma(struct amdgpu_device *adev, + struct drm_amdgpu_info *info, + struct drm_amdgpu_info_uq_metadata_sdma *meta) +{ + int ret = -EOPNOTSUPP; + + if (adev->sdma.get_csa_info) { + struct amdgpu_sdma_csa_info csa = {}; + + adev->sdma.get_csa_info(adev, &csa); + meta->csa_size = csa.size; + meta->csa_alignment = csa.alignment; + ret = 0; + } + + return ret; +} + static int amdgpu_hw_ip_info(struct amdgpu_device *adev, struct drm_amdgpu_info *info, struct drm_amdgpu_info_hw_ip *result) @@ -1389,6 +1407,14 @@ out: ret = copy_to_user(out, &meta_info, min((size_t)size, sizeof(meta_info))) ? -EFAULT : 0; return 0; + case AMDGPU_HW_IP_DMA: + ret = amdgpu_userq_metadata_info_sdma(adev, info, &meta_info.sdma); + if (ret) + return ret; + + ret = copy_to_user(out, &meta_info, + min((size_t)size, sizeof(meta_info))) ? -EFAULT : 0; + return 0; default: return -EINVAL; } |