diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 45b7edd2c969..95029e2e2650 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -788,7 +788,37 @@ static int vi_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk) static int vi_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk) { - /* todo */ + int r, i; + struct atom_clock_dividers dividers; + u32 tmp; + + r = amdgpu_atombios_get_clock_dividers(adev, + COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, + ecclk, false, ÷rs); + if (r) + return r; + + for (i = 0; i < 100; i++) { + if (RREG32_SMC(ixCG_ECLK_STATUS) & CG_ECLK_STATUS__ECLK_STATUS_MASK) + break; + mdelay(10); + } + if (i == 100) + return -ETIMEDOUT; + + tmp = RREG32_SMC(ixCG_ECLK_CNTL); + tmp &= ~(CG_ECLK_CNTL__ECLK_DIR_CNTL_EN_MASK | + CG_ECLK_CNTL__ECLK_DIVIDER_MASK); + tmp |= dividers.post_divider; + WREG32_SMC(ixCG_ECLK_CNTL, tmp); + + for (i = 0; i < 100; i++) { + if (RREG32_SMC(ixCG_ECLK_STATUS) & CG_ECLK_STATUS__ECLK_STATUS_MASK) + break; + mdelay(10); + } + if (i == 100) + return -ETIMEDOUT; return 0; } |