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| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2016-08-05 23:28:28 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-08-05 23:28:28 +0300 |
| commit | 522a63de18a12a3c74609323f984790e21d4a47e (patch) | |
| tree | 1a8f74f296f698d39df7fecff457e9187635c279 /drivers/gpu/drm/i915/i915_params.c | |
| parent | 739748939974791b84629a8790527a16f76873a4 (diff) | |
| download | linux-522a63de18a12a3c74609323f984790e21d4a47e.tar.gz | |
drm/i915: Add a way to test the modeset done during gpu reset, v3.
Add force_reset_modeset_test as a parameter to force the modeset path during gpu reset.
This allows a IGT test to set the knob and trigger a hang to force the gpu reset,
even on platforms that wouldn't otherwise require it.
Changes since v1:
- Split out fix to separate commit.
Changes since v2:
- This commit is purely about force_reset_modeset_test now.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Testcase: drv_hangman.reset-with-forced-modeset
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470428910-12125-3-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index b6e404c91eed..768ad89d9cd4 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -45,6 +45,7 @@ struct i915_params i915 __read_mostly = { .fastboot = 0, .prefault_disable = 0, .load_detect_test = 0, + .force_reset_modeset_test = 0, .reset = true, .invert_brightness = 0, .disable_display = 0, @@ -161,6 +162,11 @@ MODULE_PARM_DESC(load_detect_test, "Force-enable the VGA load detect code for testing (default:false). " "For developers only."); +module_param_named_unsafe(force_reset_modeset_test, i915.force_reset_modeset_test, bool, 0600); +MODULE_PARM_DESC(force_reset_modeset_test, + "Force a modeset during gpu reset for testing (default:false). " + "For developers only."); + module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600); MODULE_PARM_DESC(invert_brightness, "Invert backlight brightness " |