diff options
| author | Evan Quan <evan.quan@amd.com> | 2023-06-15 05:56:55 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-23 22:36:03 +0300 |
| commit | fd21987274463a439c074b8f3c93d3b132e4c031 (patch) | |
| tree | dab4dadf7ec358c2307ba7332dc69e7686b60f51 /drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c | |
| parent | ea2c3c08554601b051d91403a241266e1cf490a5 (diff) | |
| download | linux-fd21987274463a439c074b8f3c93d3b132e4c031.tar.xz | |
drm/amd/pm: revise the ASPM settings for thunderbolt attached scenario
Also, correct the comment for NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT
as 0x0000000E stands for 400ms instead of 4ms.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c index aa761ff3a5fa..7ba47fc1917b 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c @@ -346,7 +346,7 @@ static void nbio_v2_3_init_registers(struct amdgpu_device *adev) #define NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT 0x00000000 // off by default, no gains over L1 #define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x00000009 // 1=1us, 9=1ms -#define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 4ms +#define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 400ms static void nbio_v2_3_enable_aspm(struct amdgpu_device *adev, bool enable) @@ -479,9 +479,12 @@ static void nbio_v2_3_program_aspm(struct amdgpu_device *adev) WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data); def = data = RREG32_PCIE(smnPCIE_LC_CNTL); - data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; - data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; - data |= 0x1 << PCIE_LC_CNTL__LC_PMI_TO_L1_DIS__SHIFT; + data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT; + if (pci_is_thunderbolt_attached(adev->pdev)) + data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; + else + data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; + data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; if (def != data) WREG32_PCIE(smnPCIE_LC_CNTL, data); |