diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c index 563b155b15c6..175fdfc5229b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c @@ -58,6 +58,9 @@ void amdgpu_reg_access_init(struct amdgpu_device *adev) spin_lock_init(&adev->reg.audio_endpt.lock); adev->reg.audio_endpt.rreg = NULL; adev->reg.audio_endpt.wreg = NULL; + + adev->reg.pcie.port_rreg = NULL; + adev->reg.pcie.port_wreg = NULL; } uint32_t amdgpu_reg_smc_rd32(struct amdgpu_device *adev, uint32_t reg) @@ -179,6 +182,24 @@ void amdgpu_reg_audio_endpt_wr32(struct amdgpu_device *adev, uint32_t block, adev->reg.audio_endpt.wreg(adev, block, reg, v); } +uint32_t amdgpu_reg_pciep_rd32(struct amdgpu_device *adev, uint32_t reg) +{ + if (!adev->reg.pcie.port_rreg) { + dev_err_once(adev->dev, "PCIEP register read not supported\n"); + return 0; + } + return adev->reg.pcie.port_rreg(adev, reg); +} + +void amdgpu_reg_pciep_wr32(struct amdgpu_device *adev, uint32_t reg, uint32_t v) +{ + if (!adev->reg.pcie.port_wreg) { + dev_err_once(adev->dev, "PCIEP register write not supported\n"); + return; + } + adev->reg.pcie.port_wreg(adev, reg, v); +} + /* * register access helper functions. */ |