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Add a workaround for Ironlake errata regarding blits and other engines.

This commit is contained in:
Eric Anholt 2010-05-23 20:28:24 -07:00
parent 3461f8f4bc
commit 158a158dad
1 changed files with 24 additions and 0 deletions
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24
src/i830_uxa.c
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@ -36,6 +36,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "i830.h"
#include "i810_reg.h"
#include "i915_drm.h"
#include "brw_defines.h"
#include <string.h>
#include <sys/mman.h>
#include <errno.h>
@ -80,6 +81,26 @@ const int I830PatternROP[16] = {
int uxa_pixmap_index;
static void
ironlake_blt_workaround(ScrnInfoPtr scrn)
{
intel_screen_private *intel = intel_get_screen_private(scrn);
/* Ironlake has a limitation that a 3D or Media command can't
* be the first command after a BLT, unless it's
* non-pipelined. Instead of trying to track it and emit a
* command at the right time, we just emit a dummy
* non-pipelined 3D instruction after each blit.
*/
if (IS_IGDNG(intel)) {
BEGIN_BATCH(2);
OUT_BATCH(CMD_POLY_STIPPLE_OFFSET << 16);
OUT_BATCH(0);
ADVANCE_BATCH();
}
}
Bool
i830_get_aperture_space(ScrnInfoPtr scrn, drm_intel_bo ** bo_table,
int num_bos)
@ -312,6 +333,8 @@ static void i830_uxa_solid(PixmapPtr pixmap, int x1, int y1, int x2, int y2)
OUT_BATCH(intel->BR[16]);
ADVANCE_BATCH();
}
ironlake_blt_workaround(scrn);
}
static void i830_uxa_done_solid(PixmapPtr pixmap)
@ -453,6 +476,7 @@ i830_uxa_copy(PixmapPtr dest, int src_x1, int src_y1, int dst_x1,
ADVANCE_BATCH();
}
ironlake_blt_workaround(scrn);
}
static void i830_uxa_done_copy(PixmapPtr dest)