diff options
| author | Eric Anholt <eric@anholt.net> | 2010-11-18 04:31:14 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-22 12:02:07 +0300 |
| commit | cff458c21063de960bde0e39770a0f4cd0477d95 (patch) | |
| tree | 0426913408f5d5e4e30febe0bbab6f05f86987ae /drivers/gpu/drm/i915/i915_drv.c | |
| parent | 75a6898ffd20a13aba8d03f005eb4ab940134fcb (diff) | |
| download | linux-cff458c21063de960bde0e39770a0f4cd0477d95.tar.xz | |
drm/i915: Add support for GPU reset on gen6.
This has proven sufficient to recover from a hang of the GPU using the
gem_bad_blit test while at the KMS console then starting X. When
attempting the same during an X session, the timer doesn't appear to
trigger.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 99b574050fde..8c5541950b8d 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -405,6 +405,14 @@ static int ironlake_do_reset(struct drm_device *dev, u8 flags) return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500); } +static int gen6_do_reset(struct drm_device *dev, u8 flags) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL); + return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500); +} + /** * i965_reset - reset chip after a hang * @dev: drm device to reset @@ -439,6 +447,9 @@ int i915_reset(struct drm_device *dev, u8 flags) if (get_seconds() - dev_priv->last_gpu_reset < 5) { DRM_ERROR("GPU hanging too fast, declaring wedged!\n"); } else switch (INTEL_INFO(dev)->gen) { + case 6: + ret = gen6_do_reset(dev, flags); + break; case 5: ret = ironlake_do_reset(dev, flags); break; |