diff options
| -rw-r--r-- | intel/intel_bufmgr_gem.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c index dd58c0c4..0cfeb988 100644 --- a/intel/intel_bufmgr_gem.c +++ b/intel/intel_bufmgr_gem.c @@ -2204,6 +2204,14 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size) else bufmgr_gem->gen = 6; + if (IS_GEN3(bufmgr_gem) && bufmgr_gem->gtt_size > 256*1024*1024) { + /* The unmappable part of gtt on gen 3 (i.e. above 256MB) can't + * be used for tiled blits. To simplify the accounting, just + * substract the unmappable part (fixed to 256MB on all known + * gen3 devices) if the kernel advertises it. */ + bufmgr_gem->gtt_size -= 256*1024*1024; + } + gp.value = &tmp; gp.param = I915_PARAM_HAS_EXECBUF2; |