diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2015-03-03 04:41:31 +0300 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-04-09 14:13:57 +0300 |
| commit | 3030c151137dcfffcf881fc193cdd648bc9716a6 (patch) | |
| tree | 1a8837b42a1c9b3fe8b1266dcdd7bd3caf67949e /drivers/gpu | |
| parent | a1a62b8faec4b5f829bbcb26b3bd31b74989575a (diff) | |
| download | linux-3030c151137dcfffcf881fc193cdd648bc9716a6.tar.xz | |
drm/radeon: do a posting read in r600_set_irq
commit 9d1393f23d5656cdd5f368efd60694d4aeed81d3 upstream.
To make sure the writes go through the pci bridge.
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=90741
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 88eb936fbc2f..2c0a0d7c2492 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3509,6 +3509,9 @@ int r600_irq_set(struct radeon_device *rdev) WREG32(RV770_CG_THERMAL_INT, thermal_int); } + /* posting read */ + RREG32(R_000E50_SRBM_STATUS); + return 0; } |