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[intel-gem] Add /proc/dri/*/i915_gem_interrupt

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This tracks most of the interrupt-related status, including the
interrupt registers in the chip and the sequence number variables.
This commit is contained in:
Keith Packard 2008-06-21 00:13:18 -07:00
parent 33114e4a11
commit 8be6ec491f
1 changed files with 45 additions and 5 deletions
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50
linux-core/i915_gem.c
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@ -2486,15 +2486,55 @@ static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
}
static int i915_interrupt_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int len = 0;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
return 0;
}
*start = &buf[offset];
*eof = 0;
DRM_PROC_PRINT("Interrupt enable: %08x\n",
I915_READ(I915REG_INT_ENABLE_R));
DRM_PROC_PRINT("Interrupt identity: %08x\n",
I915_READ(I915REG_INT_IDENTITY_R));
DRM_PROC_PRINT("Interrupt mask: %08x\n",
I915_READ(I915REG_INT_MASK_R));
DRM_PROC_PRINT("Pipe A stat: %08x\n",
I915_READ(I915REG_PIPEASTAT));
DRM_PROC_PRINT("Pipe B stat: %08x\n",
I915_READ(I915REG_PIPEBSTAT));
DRM_PROC_PRINT("Interrupts received: %d\n",
atomic_read(&dev_priv->irq_received));
DRM_PROC_PRINT("Current sequence: %d\n",
i915_get_gem_seqno(dev));
DRM_PROC_PRINT("Waiter sequence: %d\n",
dev_priv->mm.waiting_gem_seqno);
DRM_PROC_PRINT("IRQ sequence: %d\n",
dev_priv->mm.irq_gem_seqno);
if (len > request + offset)
return request;
*eof = 1;
return len - offset;
}
static struct drm_proc_list {
const char *name; /**< file name */
int (*f) (char *, char **, off_t, int, int *, void *); /**< proc callback*/
} i915_gem_proc_list[] = {
{"gem_active", i915_gem_active_info},
{"gem_flushing", i915_gem_flushing_info},
{"gem_inactive", i915_gem_inactive_info},
{"gem_request", i915_gem_request_info},
{"gem_seqno", i915_gem_seqno_info},
{"i915_gem_active", i915_gem_active_info},
{"i915_gem_flushing", i915_gem_flushing_info},
{"i915_gem_inactive", i915_gem_inactive_info},
{"i915_gem_request", i915_gem_request_info},
{"i915_gem_seqno", i915_gem_seqno_info},
{"i915_gem_interrupt", i915_interrupt_info},
};
#define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)