aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <[email protected]>2025-05-13 06:19:37 +0000
committerGreg Kroah-Hartman <[email protected]>2025-05-13 06:19:37 +0000
commit991919e969043a4422dfebbcadf600a5d28b94e4 (patch)
tree4776f9f162c665a9735198fafc466d3e49a14253 /drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
parentcomedi: drivers: adl_pci9118.c: Edit file so that checkpatch.pl has 0 typo er... (diff)
parentLinux 6.15-rc6 (diff)
downloadkernel-991919e969043a4422dfebbcadf600a5d28b94e4.tar.gz
kernel-991919e969043a4422dfebbcadf600a5d28b94e4.zip
Merge 6.15-rc6 into char-misc-next
We need the iio/hyperv fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
index 49f7eb4fbd11..2c9239a22f39 100644
--- a/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/hdp_v7_0.c
@@ -32,7 +32,12 @@ static void hdp_v7_0_flush_hdp(struct amdgpu_device *adev,
{
if (!ring || !ring->funcs->emit_wreg) {
WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
- RREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2);
+ /* We just need to read back a register to post the write.
+ * Reading back the remapped register causes problems on
+ * some platforms so just read back the memory size register.
+ */
+ if (adev->nbio.funcs->get_memsize)
+ adev->nbio.funcs->get_memsize(adev);
} else {
amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0);
}