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| author | Mukul Joshi <mukul.joshi@amd.com> | 2022-06-10 09:41:29 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:45:38 -0400 |
| commit | 0c7315e7d5ef9b36ca4db32ffeb34a187cbaf231 (patch) | |
| tree | 6507b0c864294533e748770edfbdfb50c8d831e3 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | fe1f05df5919c67c3add49efb55e251a8d78ee4e (diff) | |
| download | linux-0c7315e7d5ef9b36ca4db32ffeb34a187cbaf231.tar.gz linux-0c7315e7d5ef9b36ca4db32ffeb34a187cbaf231.tar.bz2 linux-0c7315e7d5ef9b36ca4db32ffeb34a187cbaf231.zip | |
drm/amdkfd: Add device repartition support
GFX9.4.3 will support dynamic repartitioning of the GPU through sysfs.
Add device repartitioning support in KFD to repartition GPU from one
mode to other.
v2: squash in fix ("drm/amdkfd: Fix warning kgd2kfd_unlock_kfd defined but not used")
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 069b259f384c..69bac5b801ce 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -1233,10 +1233,30 @@ static ssize_t amdgpu_gfx_set_compute_partition(struct device *dev, return -EINVAL; } + if (!adev->kfd.init_complete) + return -EPERM; + mutex_lock(&adev->gfx.partition_mutex); - ret = adev->gfx.funcs->switch_partition_mode(adev, mode); + if (mode == adev->gfx.funcs->query_partition_mode(adev)) + goto out; + + ret = amdgpu_amdkfd_check_and_lock_kfd(adev); + if (ret) + goto out; + + amdgpu_amdkfd_device_fini_sw(adev); + + adev->gfx.funcs->switch_partition_mode(adev, mode); + + amdgpu_amdkfd_device_probe(adev); + amdgpu_amdkfd_device_init(adev); + /* If KFD init failed, return failure */ + if (!adev->kfd.init_complete) + ret = -EIO; + amdgpu_amdkfd_unlock_kfd(adev); +out: mutex_unlock(&adev->gfx.partition_mutex); if (ret) |