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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2020-09-17 04:19:34 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-22 19:24:11 +0300 |
| commit | c7651b73586600ddf483de51806eada02cb1616e (patch) | |
| tree | 73745b4786f5e16910aa09b900d4ca6449e0596d /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | 911d5bd5e7b8531b39301c2c27e5b90d7bd71b88 (diff) | |
| download | linux-c7651b73586600ddf483de51806eada02cb1616e.tar.xz | |
drm/amdgpu: Fix handling of KFD initialization failures
Remember KFD module initializaton status in a global variable. Skip KFD
device probing when the module was not initialized. Other amdgpu_amdkfd
calls are then protected by the adev->kfd.dev check.
Also print a clear error message when KFD disables itself. Amdgpu
continues its initialization even when KFD failed.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index edff1b7f282a..53d5aa2d96bf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -36,6 +36,8 @@ */ uint64_t amdgpu_amdkfd_total_mem_size; +bool kfd_initialized; + int amdgpu_amdkfd_init(void) { struct sysinfo si; @@ -51,19 +53,26 @@ int amdgpu_amdkfd_init(void) #else ret = -ENOENT; #endif + kfd_initialized = !ret; return ret; } void amdgpu_amdkfd_fini(void) { - kgd2kfd_exit(); + if (kfd_initialized) { + kgd2kfd_exit(); + kfd_initialized = false; + } } void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev) { bool vf = amdgpu_sriov_vf(adev); + if (!kfd_initialized) + return; + adev->kfd.dev = kgd2kfd_probe((struct kgd_dev *)adev, adev->pdev, adev->asic_type, vf); |