Commit f957063f authored by Alex Deucher's avatar Alex Deucher

drm/radeon: do a posting read in r100_set_irq

To make sure the writes go through the pci bridge.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=90741Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 2afa3265
...@@ -728,6 +728,10 @@ int r100_irq_set(struct radeon_device *rdev) ...@@ -728,6 +728,10 @@ int r100_irq_set(struct radeon_device *rdev)
tmp |= RADEON_FP2_DETECT_MASK; tmp |= RADEON_FP2_DETECT_MASK;
} }
WREG32(RADEON_GEN_INT_CNTL, tmp); WREG32(RADEON_GEN_INT_CNTL, tmp);
/* read back to post the write */
RREG32(RADEON_GEN_INT_CNTL);
return 0; return 0;
} }
......
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