linux-kernel - [PATCH 3.12 056/119] drm/radeon: fix radeon_move

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Message-Id: <bbca3af46c6a529be17d8ceb5cfdc2a600810a45.1475144721.git.jslaby@suse.cz>
Date:   Thu, 29 Sep 2016 12:24:52 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Christian König <christian.koenig@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 056/119] drm/radeon: fix radeon_move_blit on 32bit systems

From: Christian König <christian.koenig@....com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 13f479b9df4e2bbf2d16e7e1b02f3f55f70e2455 upstream.

This bug seems to be present for a very long time.

Signed-off-by: Christian König <christian.koenig@....com>
Reviewed-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/gpu/drm/radeon/radeon_ttm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index f5931e5f44fd..03d5c3effd5c 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -230,8 +230,8 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
 
 	rdev = radeon_get_rdev(bo->bdev);
 	ridx = radeon_copy_ring_index(rdev);
-	old_start = old_mem->start << PAGE_SHIFT;
-	new_start = new_mem->start << PAGE_SHIFT;
+	old_start = (u64)old_mem->start << PAGE_SHIFT;
+	new_start = (u64)new_mem->start << PAGE_SHIFT;
 
 	switch (old_mem->mem_type) {
 	case TTM_PL_VRAM:
-- 
2.10.0