drm/i915: Include G4X/VLV/CHV in self refresh status

Add all missing platforms handled by intel_set_memory_cxsr() to the
i915_sr_status debugfs entry.

v2: Add G4X too. (Ville)
    Clarify the change also affects CHV. (Ander)

References: https://bugs.freedesktop.org/show_bug.cgi?id=89792
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 007c7d7d8295..dc55c51964ab 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1667,12 +1667,15 @@ static int i915_sr_status(struct seq_file *m, void *unused)
 
         if (HAS_PCH_SPLIT(dev))
                 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
-        else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
+        else if (IS_CRESTLINE(dev) || IS_G4X(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;
+        else if (IS_VALLEYVIEW(dev))
+                sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
 
         intel_runtime_pm_put(dev_priv);