From: Jesse Barnes Date: Fri, 5 Feb 2010 20:47:35 +0000 (-0800) Subject: drm/i915: provide self-refresh status in debugfs X-Git-Tag: MMI-PSA29.97-13-9~23984^2~101^2~24^2~8 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4a9bef37e5cf2c73b61ecc9ead52cad2eb4a372b;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git drm/i915: provide self-refresh status in debugfs Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- 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)