From: Hawking Zhang <Hawking.Zhang@xxxxxxx>
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@xxxxxxx>
Reviewed-by: Feifei Xu <Feifei.Xu@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 3 +++
1 file changed, 3 insertions(+)
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
--
2.29.2
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