From 3e14a2867d8ccf555fe6e318eac0f8200399fe1c Mon Sep 17 00:00:00 2001 From: Michel Daenzer Date: Fri, 22 Sep 2006 04:26:35 +1000 Subject: drm: Use register writes instead of BITBLT_MULTI packets for buffer swap blits This takes up two more ring buffer entries per rectangle blitted but makes sure the blit is performed top to bottom, reducing the likelyhood of tearing. Signed-off-by: Dave Airlie --- drivers/char/drm/radeon_state.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/char/drm/radeon_state.c') diff --git a/drivers/char/drm/radeon_state.c b/drivers/char/drm/radeon_state.c index bb4b2e1a78c1..feac5f005d47 100644 --- a/drivers/char/drm/radeon_state.c +++ b/drivers/char/drm/radeon_state.c @@ -1269,9 +1269,9 @@ static void radeon_cp_dispatch_swap(drm_device_t * dev) DRM_DEBUG("dispatch swap %d,%d-%d,%d\n", x, y, w, h); - BEGIN_RING(7); + BEGIN_RING(9); - OUT_RING(CP_PACKET3(RADEON_CNTL_BITBLT_MULTI, 5)); + OUT_RING(CP_PACKET0(RADEON_DP_GUI_MASTER_CNTL, 0)); OUT_RING(RADEON_GMC_SRC_PITCH_OFFSET_CNTL | RADEON_GMC_DST_PITCH_OFFSET_CNTL | RADEON_GMC_BRUSH_NONE | @@ -1283,6 +1283,7 @@ static void radeon_cp_dispatch_swap(drm_device_t * dev) /* Make this work even if front & back are flipped: */ + OUT_RING(CP_PACKET0(RADEON_SRC_PITCH_OFFSET, 1)); if (dev_priv->current_page == 0) { OUT_RING(dev_priv->back_pitch_offset); OUT_RING(dev_priv->front_pitch_offset); @@ -1291,6 +1292,7 @@ static void radeon_cp_dispatch_swap(drm_device_t * dev) OUT_RING(dev_priv->back_pitch_offset); } + OUT_RING(CP_PACKET0(RADEON_SRC_X_Y, 2)); OUT_RING((x << 16) | y); OUT_RING((x << 16) | y); OUT_RING((w << 16) | h); -- cgit v1.2.2