diff options
author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-12-03 11:30:09 +0200 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-12-13 10:41:06 +0100 |
commit | 97058870e616631a80721e08d5797d7da4b23b0a (patch) | |
tree | 9082ef663feef58effc18f8d92db93c687a7e066 /drivers/gpu/drm/i915/intel_uncore.c | |
parent | 168c3f2151a7de906b060a335d19b0ba483a6718 (diff) |
drm/i915: Clear out old GT FIFO errors in intel_uncore_early_sanitize()
The BIOS or someone else might have done something bad and there
might be old GT FIFO erros reported in GTFIFODBG. Clear those out
in intel_uncore_early_sanitize() to make sure we don't mistake them
for our problems.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uncore.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 8102af9a178..32527a74dc4 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -332,6 +332,11 @@ void intel_uncore_early_sanitize(struct drm_device *dev) DRM_INFO("Found %zuMB of eLLC\n", dev_priv->ellc_size); } + /* clear out old GT FIFO errors */ + if (IS_GEN6(dev) || IS_GEN7(dev)) + __raw_i915_write32(dev_priv, GTFIFODBG, + __raw_i915_read32(dev_priv, GTFIFODBG)); + intel_uncore_forcewake_reset(dev); } |