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Commit 4a9bef37 authored by Jesse Barnes's avatar Jesse Barnes Committed by Eric Anholt
Browse files

drm/i915: provide self-refresh status in debugfs 



Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent b5e50c3f

drivers/gpu/drm/i915/i915_debugfs.c

+21 −0
Original line number Diff line number Diff line
@@ -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)