From: Christian König <christian.koenig@amd.com>
Date: Fri, 20 Dec 2013 16:48:54 +0000 (+0100)
Subject: drm/radeon: fix UVD 256MB check
X-Git-Tag: submit/tizen_common/20140905.094502~1175
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ed2ab532f87bdf9faadd43ce1f11a117d7d08c18;p=sdk%2Femulator%2Femulator-kernel.git

drm/radeon: fix UVD 256MB check

commit bae651dbd7ade3c5d6518f89599ae680a2fe2b85 upstream.

Otherwise the kernel might reject our decoding requests.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index ab0a17248d55..1d029ccf428b 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -472,7 +472,7 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
 		return -EINVAL;
 	}
 
-	if ((start >> 28) != (end >> 28)) {
+	if ((start >> 28) != ((end - 1) >> 28)) {
 		DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
 			  start, end);
 		return -EINVAL;