From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Tue, 4 Dec 2012 13:12:05 +0000 (+0200)
Subject: drm/i915: Set initial seqno value close to wrap boundary
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9e8e36879f268f1652e11b1c8560bbb67cf4f08e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/i915: Set initial seqno value close to wrap boundary

To gain confidence in the wrap handling, make it happen quite
soon after the boot.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index bc73f98c3631..6380c6083cb2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3943,7 +3943,7 @@ i915_gem_init_hw(struct drm_device *dev)
 			goto cleanup_bsd_ring;
 	}
 
-	dev_priv->next_seqno = 1;
+	dev_priv->next_seqno = (u32)-1 - 0x1000;
 
 	/*
 	 * XXX: There was some w/a described somewhere suggesting loading