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| author | Chengzhe Liu <ChengZhe.Liu@amd.com> | 2021-07-20 10:18:12 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-23 17:09:40 +0300 |
| commit | 1bece222eabeb3d8b10c5f2dadb03b6fb780b050 (patch) | |
| tree | 9504670a7f981c878e732e03ea2dc8fd1c2c6806 /drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h | |
| parent | 5810323ba692895b045e3f1b3e107605c3717dab (diff) | |
| download | linux-1bece222eabeb3d8b10c5f2dadb03b6fb780b050.tar.xz | |
drm/amdgpu: Clear doorbell interrupt status for Sienna Cichlid
On Sienna Cichlid, in pass-through mode, if we unload the driver in BACO
mode(RTPM), then the kernel would receive thousands of interrupts.
That's because there is doorbell monitor interrupt on BIF, so KVM keeps
injecting interrupts to the guest VM. So we should clear the doorbell
interrupt status after BACO exit.
v2: Modify coding style and commit message
Signed-off-by: Chengzhe Liu <ChengZhe.Liu@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h index 45295dce5c3e..843052205bd5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h @@ -95,6 +95,7 @@ struct amdgpu_nbio_funcs { void (*program_aspm)(struct amdgpu_device *adev); void (*apply_lc_spc_mode_wa)(struct amdgpu_device *adev); void (*apply_l1_link_width_reconfig_wa)(struct amdgpu_device *adev); + void (*clear_doorbell_interrupt)(struct amdgpu_device *adev); }; struct amdgpu_nbio { |