On Wed, Jan 29, 2014 at 9:55 AM, ville syrjala
---------- Forwarded message ---------- From: ** <ville.syrjala@xxxxxxxxxxxxxxx <mailto:ville.syrjala@xxxxxxxxxxxxxxx>> Date: Mon, Feb 24, 2014 at 8:32 PM Subject: [PATCH 1/2] drm/i915: Fix VLV forcewake after reset To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx <mailto:intel-gfx@xxxxxxxxxxxxxxxxxxxxx> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx <mailto:ville.syrjala@xxxxxxxxxxxxxxx>> Use the render/media specific forcewake counts to properly restore the forcewake status after a GPU reset on VLV. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx <mailto:ville.syrjala@xxxxxxxxxxxxxxx>> --- drivers/gpu/drm/i915/intel_uncore.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index c628414..09fa555 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -967,10 +967,22 @@ 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; -- 1.8.3.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx <mailto:Intel-gfx@xxxxxxxxxxxxxxxxxxxxx> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Reviewed-by: Deepak S <deepak.s@xxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
