From: Ville Syrjälä Date: Mon, 24 Feb 2014 15:02:08 +0000 (+0200) Subject: drm/i915: Fix VLV forcewake after reset X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ee7fa12ce4683e92e3ab0c43c36af5fb5f6b1054;p=openwrt%2Fstaging%2Fblogic.git drm/i915: Fix VLV forcewake after reset Use the render/media specific forcewake counts to properly restore the forcewake status after a GPU reset on VLV. Signed-off-by: Ville Syrjälä Reviewed-by: Deepak S Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index e5ee65655e8c..ba465f9cc2f2 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -982,10 +982,22 @@ static int gen6_do_reset(struct drm_device *dev) intel_uncore_forcewake_reset(dev); /* If reset with a user forcewake, try to restore, otherwise turn it off */ - if (dev_priv->uncore.forcewake_count) - dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); - else - dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); + if (IS_VALLEYVIEW(dev)) { + if (dev_priv->uncore.fw_rendercount) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_RENDER); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_RENDER); + + if (dev_priv->uncore.fw_mediacount) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_MEDIA); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_MEDIA); + } else { + if (dev_priv->uncore.forcewake_count) + dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL); + else + dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL); + } /* Restore fifo count */ dev_priv->uncore.fifo_count = __raw_i915_read32(dev_priv, GTFIFOCTL) & GT_FIFO_FREE_ENTRIES_MASK;