i915_irq.c File Reference

#include <linux/sysrq.h>
#include <linux/slab.h>
#include <drm/drmP.h>
#include <drm/i915_drm.h>
#include "i915_drv.h"
#include "i915_trace.h"
#include "intel_drv.h"

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	i915_capture_error_state(x)

Functions
void	i915_enable_pipestat (drm_i915_private_t *dev_priv, int pipe, u32 mask)
void	i915_disable_pipestat (drm_i915_private_t *dev_priv, int pipe, u32 mask)
void	intel_enable_asle (struct drm_device *dev)
void	i915_handle_error (struct drm_device *dev, bool wedged)
void	i915_hangcheck_elapsed (unsigned long data)
void	intel_irq_init (struct drm_device *dev)

Variables
spinlock_t	mchdev_lock

Macro Definition Documentation

#define i915_capture_error_state

(

x

)

Definition at line 1322 of file i915_irq.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 29 of file i915_irq.c.

Function Documentation

void i915_disable_pipestat	(	drm_i915_private_t *	dev_priv,
		int	pipe,
		u32	mask
	)

Definition at line 74 of file i915_irq.c.

void i915_enable_pipestat	(	drm_i915_private_t *	dev_priv,
		int	pipe,
		u32	mask
	)

Definition at line 61 of file i915_irq.c.

void i915_handle_error	(	struct drm_device *	dev,
		bool	wedged
	)

i915_handle_error - handle an error interrupt : drm device

Do some basic checking of regsiter state at error interrupt time and dump it to the syslog. Also call i915_capture_error_state() to make sure we get a record and make it available in debugfs. Fire a uevent so userspace knows something bad happened (should trigger collection of a ring dump etc.).

Definition at line 1427 of file i915_irq.c.

void i915_hangcheck_elapsed

(

unsigned long

data

)

This is called when the chip hasn't reported back with completed batchbuffers in a long time. The first time this is called we simply record ACTHD. If ACTHD hasn't changed by the time the hangcheck timer elapses again, we assume the chip is wedged and try to fix it.

Definition at line 1707 of file i915_irq.c.

void intel_enable_asle

(

struct drm_device *

dev

)

intel_enable_asle - enable ASLE interrupt for OpRegion

Definition at line 88 of file i915_irq.c.

void intel_irq_init

(

struct drm_device *

dev

)

Definition at line 2687 of file i915_irq.c.

Variable Documentation

spinlock_t mchdev_lock