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Undo: Disable BLT for i830 and 845G 

Reported-by: György Balló  <ballogy@freestart.hu>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32482
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-12-20 10:55:11 +00:00
parent 6f21405454
commit 1ac2e04023
1 changed files with 3 additions and 1 deletions
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4
src/intel_driver.c
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@ -470,7 +470,7 @@ static void I830XvInit(ScrnInfoPtr scrn)
static Bool can_accelerate_blt(struct intel_screen_private *intel)
{
if (IS_I830(intel) || IS_845G(intel)) {
if (0 && (IS_I830(intel) || IS_845G(intel))) {
/* These pair of i8xx chipsets have a crippling erratum
* that prevents the use of a PTE entry by the BLT
* engine immediately following updating that
@ -479,6 +479,8 @@ static Bool can_accelerate_blt(struct intel_screen_private *intel)
* As the BLT is fundamental to our 2D acceleration,
* and the workaround is lost in the midst of time,
* fallback.
*
* XXX disabled for release as causes regressions in GL.
*/
return FALSE;
}