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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-02-05 12:47:35 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-02-22 11:46:58 -0500 |
| commit | 4a9bef37e5cf2c73b61ecc9ead52cad2eb4a372b (patch) | |
| tree | 54575d1c9518ef71c4d59939dde0e2ce780f7e07 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | b5e50c3f56ee4aa0d0168eab5ece413ac5df76aa (diff) | |
| download | lwn-4a9bef37e5cf2c73b61ecc9ead52cad2eb4a372b.tar.gz lwn-4a9bef37e5cf2c73b61ecc9ead52cad2eb4a372b.zip | |
drm/i915: provide self-refresh status in debugfs
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 96e8b9b2cb32..56095b3d28ce 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -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) |