Commit 66231d14 authored Oct 03, 2018 by José Roberto de Souza Committed by Dhinakaran Pandiyan Oct 05, 2018

drm/i915/psr: Use WA to force HW tracking to exit PSR2



This WA also works fine for PSR2, triggering a selective update when
possible.

Acked-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181003205031.32474-4-jose.souza@intel.com

parent 4755717b

drivers/gpu/drm/i915/intel_psr.c

+10 −14

Original line number	Diff line number	Diff line
		@@ -1027,9 +1027,6 @@ void intel_psr_flush(struct drm_i915_private *dev_priv,

		/* By definition flush = invalidate + flush */
		if (frontbuffer_bits) {
		if (dev_priv->psr.psr2_enabled) {
		intel_psr_exit(dev_priv);
		} else {
		/*
		* Display WA #0884: all
		* This documented WA for bxt can be safely applied
		@@ -1041,7 +1038,6 @@ void intel_psr_flush(struct drm_i915_private *dev_priv,
		*/
		I915_WRITE(CURSURFLIVE(pipe), 0);
		}
		}

		if (!dev_priv->psr.active && !dev_priv->psr.busy_frontbuffer_bits)
		schedule_work(&dev_priv->psr.work);

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