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authorDave Airlie <airlied@linux.ie>2006-06-24 16:55:34 +1000
committerDave Airlie <airlied@linux.ie>2006-06-24 17:32:04 +1000
commitf2a2279ffc0dfd27f6909184a29910e40ae7eebd (patch)
treee1e9e8a652256a6fd25a595f429f88a39543b3f2 /drivers/char/drm/radeon_state.c
parentd384ea691fe4ea8c2dd5b9b8d9042eb181776f18 (diff)
drm: radeon add a tcl state flush before accessing tcl vector space
Do a tcl state flush before accessing tcl vector space. This fixes some more problems with flickering (bug #6637). drm may not be appropriate place for this, since doing that flush there might both be overkill and insufficient in some cases. However, it's hard to figure out when that flush is needed, so this has to suffice. There does not seem to be a performance penalty associated with it. From: Roland Scheidegger (DRM CVS) Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/char/drm/radeon_state.c')
-rw-r--r--drivers/char/drm/radeon_state.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/drm/radeon_state.c b/drivers/char/drm/radeon_state.c
index c5b8f774a59..4ca6bd13d58 100644
--- a/drivers/char/drm/radeon_state.c
+++ b/drivers/char/drm/radeon_state.c
@@ -2595,7 +2595,8 @@ static __inline__ int radeon_emit_vectors(drm_radeon_private_t *dev_priv,
int stride = header.vectors.stride;
RING_LOCALS;
- BEGIN_RING(3 + sz);
+ BEGIN_RING(5 + sz);
+ OUT_RING_REG(RADEON_SE_TCL_STATE_FLUSH, 0);
OUT_RING(CP_PACKET0(RADEON_SE_TCL_VECTOR_INDX_REG, 0));
OUT_RING(start | (stride << RADEON_VEC_INDX_OCTWORD_STRIDE_SHIFT));
OUT_RING(CP_PACKET0_TABLE(RADEON_SE_TCL_VECTOR_DATA_REG, (sz - 1)));