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-rw-r--r--drivers/gpu/drm/i915/intel_pm.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 26c2ea3e985c..71a831ae73e9 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1592,6 +1592,16 @@ static void i9xx_update_wm(struct drm_device *dev)
DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm);
+ if (IS_I915GM(dev) && enabled) {
+ struct intel_framebuffer *fb;
+
+ fb = to_intel_framebuffer(enabled->fb);
+
+ /* self-refresh seems busted with untiled */
+ if (fb->obj->tiling_mode == I915_TILING_NONE)
+ enabled = NULL;
+ }
+
/*
* Overlay gets an aggressive default since video jitter is bad.
*/