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glamor_largepixmap: Walkaround for large texture's upload. 

I met a problem with large texture (larger than 7000x7000)'s
uploading on SNB platform. The map_gtt get back a mapped VA
without error, but write to that virtual address triggers
BUS error. This work around is to avoid that direct uploading.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Zhigang Gong 2012-06-26 13:09:05 +08:00 committed by Eric Anholt
parent 37d4022f01
commit 682f5d2989
2 changed files with 6 additions and 1 deletions
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6
glamor/glamor_pixmap.c
View File

@ -497,7 +497,11 @@ ready_to_upload:
if (no_alpha == 0
&& revert == REVERT_NONE
&& swap_rb == SWAP_NONE_UPLOADING
&& !need_flip) {
&& !need_flip
#ifdef WALKAROUND_LARGE_TEXTURE_MAP
&& pixmap_priv->type != GLAMOR_TEXTURE_LARGE
#endif
) {
int fbo_x_off, fbo_y_off;
assert(pixmap_priv->base.fbo->tex);
pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);

1
glamor/glamor_priv.h
View File

@ -1001,6 +1001,7 @@ glamor_poly_line(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
//#define GLAMOR_TRAPEZOID_SHADER
#endif
#define GLAMOR_TEXTURED_LARGE_PIXMAP 1
#define WALKAROUND_LARGE_TEXTURE_MAP
#if 0
#define MAX_FBO_SIZE 32 /* For test purpose only. */
#endif