diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-18 19:16:54 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-19 00:36:47 +0300 |
| commit | 9e53d9be0d9e09f834d3bdfccafb8330f2597e6c (patch) | |
| tree | 33589b0d316fb2c4146bfb43acddde37f790c51d /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
| parent | e8cb909ac3abbcac5184825638903a2b9a225725 (diff) | |
| download | linux-9e53d9be0d9e09f834d3bdfccafb8330f2597e6c.tar.xz | |
drm/i915: Disallow direct CPU access to stolen pages for relocations
As we cannot access the backing pages behind stolen objects, we should
not attempt to do so for relocations.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-15-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index c970aabfffa3..98d5aa5e0a34 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -283,6 +283,9 @@ static void eb_destroy(struct eb_vmas *eb) static inline int use_cpu_reloc(struct drm_i915_gem_object *obj) { + if (!i915_gem_object_has_struct_page(obj)) + return false; + if (DBG_USE_CPU_RELOC) return DBG_USE_CPU_RELOC > 0; |