Commit e0f0754f authored by Dave Airlie's avatar Dave Airlie Committed by Dave Airlie
Browse files

drm: wbinvd is cache coherent.



doing an ipi for the wbinvd case isn't necessary.
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent e7d22bc3
......@@ -47,12 +47,6 @@ drm_clflush_page(struct page *page)
}
#endif
static void
drm_clflush_ipi_handler(void *null)
{
wbinvd();
}
void
drm_clflush_pages(struct page *pages[], unsigned long num_pages)
{
......@@ -68,9 +62,8 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
return;
}
#endif
if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
DRM_ERROR("Timed out waiting for cache flush.\n");
wbinvd();
#endif
}
EXPORT_SYMBOL(drm_clflush_pages);
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