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drm/i915: provide self-refresh status in debugfs

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Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes 2010-02-05 12:47:35 -08:00 committed by Eric Anholt
parent b5e50c3f56
commit 4a9bef37e5
1 changed files with 21 additions and 0 deletions
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21
drivers/gpu/drm/i915/i915_debugfs.c
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@ -525,6 +525,26 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
return 0;
}
static int i915_sr_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
bool sr_enabled = false;
if (IS_I965G(dev) || IS_I945G(dev) || IS_I945GM(dev))
sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
else if (IS_I915GM(dev))
sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
else if (IS_PINEVIEW(dev))
sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
seq_printf(m, "self-refresh: %s\n", sr_enabled ? "enabled" :
"disabled");
return 0;
}
static int
i915_wedged_open(struct inode *inode,
struct file *filp)
@ -648,6 +668,7 @@ static struct drm_info_list i915_debugfs_list[] = {
{"i915_inttoext_table", i915_inttoext_table, 0},
{"i915_drpc_info", i915_drpc_info, 0},
{"i915_fbc_status", i915_fbc_status, 0},
{"i915_sr_status", i915_sr_status, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)