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| author | Ken Wang <Ken.Wang@amd.com> | 2017-09-14 16:25:19 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 15:14:06 -0400 |
| commit | 98512bb8c241f67f3a5cf0a121624b28a852db45 (patch) | |
| tree | 831cc54c989ba68a5ff44abc3b30e0a251296927 /drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | |
| parent | 4135d9f82cd4c8d956ccc85063e24c468dc6fa63 (diff) | |
| download | linux-98512bb8c241f67f3a5cf0a121624b28a852db45.tar.gz linux-98512bb8c241f67f3a5cf0a121624b28a852db45.tar.bz2 linux-98512bb8c241f67f3a5cf0a121624b28a852db45.zip | |
drm/amdgpu: Add GPU reset functionality for Vega10
V2
Signed-off-by: Ken Wang <Ken.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/psp_v3_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c index bcbe30dfff39..cee5c396b277 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c @@ -530,3 +530,37 @@ bool psp_v3_1_smu_reload_quirk(struct psp_context *psp) reg = RREG32_SOC15(NBIO, 0, mmPCIE_DATA2); return (reg & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) ? true : false; } + +int psp_v3_1_mode1_reset(struct psp_context *psp) +{ + int ret; + uint32_t offset; + struct amdgpu_device *adev = psp->adev; + + offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64); + + ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false); + + if (ret) { + DRM_INFO("psp is not working correctly before mode1 reset!\n"); + return -EINVAL; + } + + /*send the mode 1 reset command*/ + WREG32(offset, 0x70000); + + mdelay(1000); + + offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33); + + ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false); + + if (ret) { + DRM_INFO("psp mode 1 reset failed!\n"); + return -EINVAL; + } + + DRM_INFO("psp mode1 reset succeed \n"); + + return 0; +} |