commit: 0b65f83f9d2fab47b9b6040fe75fc2cfc73032d4 From: Dave Airlie <[email protected]> Date: Thu, 19 May 2011 14:14:42 +1000 Subject: [PATCH] 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 <[email protected]> cc: [email protected] Signed-off-by: Dave Airlie <[email protected]> --- drivers/gpu/drm/radeon/ni.c | 4 ++++ 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 7aade20..57d3d6c 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 0f9a08b..b2088c1 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 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
