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| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2020-12-22 10:55:35 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 05:56:45 +0300 |
| commit | d02692ae0d538598e9ef970dabfd29620055b18b (patch) | |
| tree | 4ea83222ca6324fdc8f959bb8af7a69c0b473e83 /drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | |
| parent | b7daed1b62a4966af836a011e0f75c45f1728b09 (diff) | |
| download | linux-d02692ae0d538598e9ef970dabfd29620055b18b.tar.xz | |
drm/amdgpu: bypass hdp read cache invalidation for aldebaran (v2)
hdp read cache is removed in aldebaran. don't issue
an mmio write or write data packet to hardware.
v2: rebase
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c index e46621fed5b9..edbd35d293eb 100644 --- a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c @@ -49,6 +49,9 @@ static void hdp_v4_0_flush_hdp(struct amdgpu_device *adev, static void hdp_v4_0_invalidate_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring) { + if (adev->asic_type == CHIP_ALDEBARAN) + return; + if (!ring || !ring->funcs->emit_wreg) WREG32_SOC15_NO_KIQ(HDP, 0, mmHDP_READ_CACHE_INVALIDATE, 1); else |