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| author | Likun Gao <Likun.Gao@amd.com> | 2021-02-01 14:44:09 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-09 15:28:04 -0500 |
| commit | e1edaeafeb667688125ef1c4e2a098d2c798fc24 (patch) | |
| tree | e2000e96d8e62388b778234893cb56c857ad27e1 /drivers/gpu/drm/amd/amdgpu/nv.c | |
| parent | 680602d6c2d6ac850302b0cf4c03dcc6d9ea0fae (diff) | |
| download | linux-e1edaeafeb667688125ef1c4e2a098d2c798fc24.tar.bz2 | |
drm/amdgpu: support ASPM for some specific ASIC
Support to program ASPM and LTR for Sienna Cichlid and forward ASIC.
Disable ASPM for Sienna Cichlid and forward ASIC by default.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nv.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index 66279f0c6808..59b220d08fc1 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -468,11 +468,14 @@ static void nv_pcie_gen3_enable(struct amdgpu_device *adev) static void nv_program_aspm(struct amdgpu_device *adev) { - - if (amdgpu_aspm == 0) + if (amdgpu_aspm != 1) return; - /* todo */ + if ((adev->asic_type >= CHIP_SIENNA_CICHLID) && + !(adev->flags & AMD_IS_APU) && + (adev->nbio.funcs->program_aspm)) + adev->nbio.funcs->program_aspm(adev); + } static void nv_enable_doorbell_aperture(struct amdgpu_device *adev, @@ -798,10 +801,10 @@ static int nv_update_umd_stable_pstate(struct amdgpu_device *adev, * The ASPM function is not fully enabled and verified on * Navi yet. Temporarily skip this until ASPM enabled. */ -#if 0 - if (adev->nbio.funcs->enable_aspm) + if ((adev->asic_type >= CHIP_SIENNA_CICHLID) && + !(adev->flags & AMD_IS_APU) && + (adev->nbio.funcs->enable_aspm)) adev->nbio.funcs->enable_aspm(adev, !enter); -#endif return 0; } |