[Intel-gfx] [PATCH 6/7] drm/i915: Hookup chip reset in error handler
Ben Gamari
bgamari.foss at gmail.com
Mon Sep 14 22:00:19 CEST 2009
This patch uses the previously introduced chip reset logic to reset the
chip when an error event is detected.
Signed-off-by: Ben Gamari <bgamari.foss at gmail.com>
---
drivers/gpu/drm/i915/i915_irq.c | 21 +++++++++++++++++----
1 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 58f43d2..5555b39 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -302,12 +302,25 @@ static void i915_error_work_func(struct work_struct *work)
drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t,
error_work);
struct drm_device *dev = dev_priv->dev;
- char *event_string = "ERROR=1";
- char *envp[] = { event_string, NULL };
+ char *error_event[] = { "ERROR=1", NULL };
+ char *reset_event[] = { "RESET=1", NULL };
+ char *reset_done_event[] = { "ERROR=0", NULL };
DRM_DEBUG("generating error event\n");
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event);
- kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, envp);
+ if (dev_priv->mm.wedged) {
+ if (IS_I965G(dev)) {
+ DRM_DEBUG("resetting chip\n");
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_event);
+ if (!i965_reset(dev, GDRST_RENDER)) {
+ dev_priv->mm.wedged = 0;
+ kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_done_event);
+ }
+ } else {
+ printk("reboot required\n");
+ }
+ }
}
/**
--
1.6.3.3
More information about the Intel-gfx
mailing list