From: Matthew Auld <matthew.auld@intel.com>
Date: Tue, 12 Apr 2016 15:57:42 +0000 (+0100)
Subject: drm/i915: call kunmap_px on pt_vaddr
X-Git-Tag: MMI-PSA29.97-13-9~7427^2~45^2~224
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=44a7102484db0ddfa6f855b57ffe0566f739b55a;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

drm/i915: call kunmap_px on pt_vaddr

We need to kunmap pt_vaddr and not pt itself, otherwise we end up
mapping a bunch of pages without ever unmapping them.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Fixes: d1c54acd67dc ("drm/i915/gtt: Introduce kmap|kunmap for dma page")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1460476663-24890-4-git-send-email-matthew.auld@intel.com
---

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9f165feb54ae..eebdb28acfa9 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -745,7 +745,7 @@ static void gen8_ppgtt_clear_pte_range(struct i915_address_space *vm,
 			num_entries--;
 		}
 
-		kunmap_px(ppgtt, pt);
+		kunmap_px(ppgtt, pt_vaddr);
 
 		pte = 0;
 		if (++pde == I915_PDES) {