diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-05-19 14:14:42 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@gmail.com> | 2011-05-22 20:25:27 +1000 |
| commit | 0b65f83f9d2fab47b9b6040fe75fc2cfc73032d4 (patch) | |
| tree | 0b1bed04eafc415a9f0b7068c39609af78a6d2eb /drivers/gpu | |
| parent | f25a5c63bfa017498c9adecb24d649ae96ba5c68 (diff) | |
| download | linux-0b65f83f9d2fab47b9b6040fe75fc2cfc73032d4.tar.bz2 | |
drm/radeon/cayman: setup hdp to invalidate and flush when asked
On cayman we need to set the bit to cause HDP flushes to invalidate the
HDP cache also.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/nid.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 7aade20f63a8..57d3d6c208d8 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -931,6 +931,10 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(CB_PERF_CTR3_SEL_0, 0); WREG32(CB_PERF_CTR3_SEL_1, 0); + tmp = RREG32(HDP_MISC_CNTL); + tmp |= HDP_FLUSH_INVALIDATE_CACHE; + WREG32(HDP_MISC_CNTL, tmp); + hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL); WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl); diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h index 0f9a08b53fbd..b2088c1981d8 100644 --- a/drivers/gpu/drm/radeon/nid.h +++ b/drivers/gpu/drm/radeon/nid.h @@ -136,6 +136,8 @@ #define HDP_NONSURFACE_INFO 0x2C08 #define HDP_NONSURFACE_SIZE 0x2C0C #define HDP_ADDR_CONFIG 0x2F48 +#define HDP_MISC_CNTL 0x2F4C +#define HDP_FLUSH_INVALIDATE_CACHE (1 << 0) #define CC_SYS_RB_BACKEND_DISABLE 0x3F88 #define GC_USER_SYS_RB_BACKEND_DISABLE 0x3F8C |