diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nv.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index ecd1a40c37a5..61fd196a6c66 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -336,6 +336,38 @@ static int nv_asic_mode1_reset(struct amdgpu_device *adev) return ret; } +static int nv_asic_mode2_reset(struct amdgpu_device *adev) +{ + u32 i; + int ret = 0; + + amdgpu_atombios_scratch_regs_engine_hung(adev, true); + + /* disable BM */ + pci_clear_master(adev->pdev); + + amdgpu_device_cache_pci_state(adev->pdev); + + ret = amdgpu_dpm_mode2_reset(adev); + if (ret) + dev_err(adev->dev, "GPU mode2 reset failed\n"); + + amdgpu_device_load_pci_state(adev->pdev); + + /* wait for asic to come out of reset */ + for (i = 0; i < adev->usec_timeout; i++) { + u32 memsize = adev->nbio.funcs->get_memsize(adev); + + if (memsize != 0xffffffff) + break; + udelay(1); + } + + amdgpu_atombios_scratch_regs_engine_hung(adev, false); + + return ret; +} + static bool nv_asic_supports_baco(struct amdgpu_device *adev) { struct smu_context *smu = &adev->smu; @@ -393,7 +425,7 @@ static int nv_asic_reset(struct amdgpu_device *adev) break; case AMD_RESET_METHOD_MODE2: dev_info(adev->dev, "MODE2 reset\n"); - ret = amdgpu_dpm_mode2_reset(adev); + ret = nv_asic_mode2_reset(adev); break; default: dev_info(adev->dev, "MODE1 reset\n"); |