From 9ed4656799043f24f4d64615ebb8128bedc99799 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Sat, 21 Oct 2006 14:17:51 +0200 Subject: The CPU cache must be flushed _before_ we start modifying the kernel map ptes, otherwise data will be missing, which becomes apparent when the kernel evicts batch buffers which are likely to be written into in the evicted state, and then rebound to the AGP aperture. This means we cannot rely on the AGP module to flush the cache for us. --- linux-core/drm_agpsupport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index 13a3ced3..a5f1f9ee 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -610,7 +610,7 @@ static int drm_agp_bind_ttm(drm_ttm_backend_t *backend, DRM_DEBUG("drm_agp_bind_ttm\n"); DRM_MASK_VAL(backend->flags, DRM_BE_FLAG_BOUND_CACHED, (cached) ? DRM_BE_FLAG_BOUND_CACHED : 0); - mem->is_flushed = FALSE; + mem->is_flushed = TRUE; mem->type = (cached) ? agp_priv->cached_type : agp_priv->uncached_type; ret = drm_agp_bind_memory(mem, offset); if (ret) { -- cgit v1.2.3