This gets us out of our init code and out to userspace quite a bit
faster, but does open us up to some bugs given the state of our init
time locking.
v2: switch to async_schedule (Chris)
check with lockdep, seems happy (Jesse)
move hotplug enable flag set to fbdev_initial_config (Jesse)
Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_dma.c | 6 ++----
drivers/gpu/drm/i915/intel_drv.h | 9 +++++++--
drivers/gpu/drm/i915/intel_fbdev.c | 9 +++++++--
3 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index eedb023..8bbc289 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -28,6 +28,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/async.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
@@ -1367,10 +1368,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
* scanning against hotplug events. Hence do this first and ignore the
* tiny window where we will loose hotplug notifactions.
*/
- intel_fbdev_initial_config(dev);
-
- /* Only enable hotplug handling once the fbdev is fully set up. */
- dev_priv->enable_hotplug_processing = true;
+ async_schedule(intel_fbdev_initial_config, dev_priv);
drm_kms_helper_poll_init(dev);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 328b1a7..a563a83 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -25,6 +25,7 @@
#ifndef __INTEL_DRV_H__
#define __INTEL_DRV_H__
+#include <linux/async.h>
#include <linux/i2c.h>
#include <linux/hdmi.h>
#include <drm/i915_drm.h>
@@ -787,7 +788,7 @@ void intel_dvo_init(struct drm_device *dev);
/* legacy fbdev emulation in intel_fbdev.c */
#ifdef CONFIG_DRM_I915_FBDEV
extern int intel_fbdev_init(struct drm_device *dev);
-extern void intel_fbdev_initial_config(struct drm_device *dev);
+extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
extern void intel_fbdev_fini(struct drm_device *dev);
extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
@@ -798,8 +799,12 @@ static inline int intel_fbdev_init(struct drm_device *dev)
return 0;
}
-static inline void intel_fbdev_initial_config(struct drm_device *dev)
+static inline void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
{
+ struct drm_i915_private *dev_priv = data;
+
+ /* Only enable hotplug handling once the fbdev is fully set up. */
+ dev_priv->enable_hotplug_processing = true;
}
static inline void intel_fbdev_fini(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index f73ba5e..9e7e45b 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -24,6 +24,7 @@
* David Airlie
*/
+#include <linux/async.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -636,13 +637,16 @@ int intel_fbdev_init(struct drm_device *dev)
return 0;
}
-void intel_fbdev_initial_config(struct drm_device *dev)
+void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = data;
struct intel_fbdev *ifbdev = dev_priv->fbdev;
/* Due to peculiar init order wrt to hpd handling this is separate. */
drm_fb_helper_initial_config(&ifbdev->helper, ifbdev->preferred_bpp);
+
+ /* Only enable hotplug handling once the fbdev is fully set up. */
+ dev_priv->enable_hotplug_processing = true;
}
void intel_fbdev_fini(struct drm_device *dev)
@@ -651,6 +655,7 @@ void intel_fbdev_fini(struct drm_device *dev)
if (!dev_priv->fbdev)
return;
+ async_synchronize_full();
intel_fbdev_destroy(dev, dev_priv->fbdev);
kfree(dev_priv->fbdev);
dev_priv->fbdev = NULL;
--
1.8.4.2
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