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| author | Alex Deucher <alexander.deucher@amd.com> | 2024-11-22 11:24:13 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-12-02 17:38:41 -0500 |
| commit | f756dbac1ce1d5f9a2b35e3b55fa429cf6336437 (patch) | |
| tree | 9066fc7070d61eb230b701bddd7d6236c0f89321 /drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c | |
| parent | cf424020e040be35df05b682b546b255e74a420f (diff) | |
| download | linux-f756dbac1ce1d5f9a2b35e3b55fa429cf6336437.tar.gz linux-f756dbac1ce1d5f9a2b35e3b55fa429cf6336437.tar.bz2 linux-f756dbac1ce1d5f9a2b35e3b55fa429cf6336437.zip | |
drm/amdgpu/hdp5.2: do a posting read when flushing HDP
Need to read back to make sure the write goes through.
Cc: David Belanger <david.belanger@amd.com>
Reviewed-by: Frank Min <frank.min@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c b/drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c index 29c3484ae1f1..f52552c5fa27 100644 --- a/drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c +++ b/drivers/gpu/drm/amd/amdgpu/hdp_v5_2.c @@ -31,13 +31,15 @@ static void hdp_v5_2_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring) { - if (!ring || !ring->funcs->emit_wreg) + if (!ring || !ring->funcs->emit_wreg) { WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); - else + RREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2); + } else { amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); + } } static void hdp_v5_2_update_mem_power_gating(struct amdgpu_device *adev, |