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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-23 13:33:15 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-11 20:36:15 +0000 |
| commit | d78cb50baa9177353d6719612b83558a9bf2d59b (patch) | |
| tree | c67e9b7b5c87fb2dad5ebd8ed181ba0ace10f06e /drivers/gpu/drm | |
| parent | drm/i915: fix the wrong latency value while computing wm0 (diff) | |
| download | linux-dev-d78cb50baa9177353d6719612b83558a9bf2d59b.tar.xz linux-dev-d78cb50baa9177353d6719612b83558a9bf2d59b.zip | |
drm/i915: add 'reset' parameter
When bringing up new hardware, or otherwise experimenting, GPU hangs are
a way of life. However, the automatic GPU reset can do more harm than
good under these circumstances, as we may wish to capture a full trace for
debugging.
Based on a patch by Zhenyu Wang.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 872493331988..2913496e8716 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -49,6 +49,9 @@ module_param_named(powersave, i915_powersave, int, 0600); unsigned int i915_lvds_downclock = 0; module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400); +bool i915_try_reset = true; +module_param_named(reset, i915_try_reset, bool, 0600); + static struct drm_driver driver; extern int intel_agp_enabled; @@ -475,6 +478,9 @@ int i915_reset(struct drm_device *dev, u8 flags) bool need_display = true; int ret; + if (!i915_try_reset) + return 0; + if (!mutex_trylock(&dev->struct_mutex)) return -EBUSY; |