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authorAlex Deucher <alexander.deucher@amd.com>2013-09-24 10:56:55 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-10-05 07:17:57 -0700
commit0d29db3e83d8ee2a84ffd93c2dfc28fcc42cd851 (patch)
tree0e6ec89d7079f833233c1be1411ba27a0cde1340
parent5b1f6871463a38198bf157bf386cc73f7586af4c (diff)
drm/radeon/cik: fix overflow in vram fetch
commit 13c5bfdad758bddc199850c22246ddf26adcec1f upstream. Missing ULL when calculating the amount of vram leads to an overflow when the amount of vram is >= 4G. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/radeon/cik.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 91adeb8c1507..4a315da97450 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -4225,8 +4225,8 @@ static int cik_mc_init(struct radeon_device *rdev)
rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
/* size in MB on si */
- rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
- rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
+ rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+ rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
rdev->mc.visible_vram_size = rdev->mc.aper_size;
si_vram_gtt_location(rdev, &rdev->mc);
radeon_update_bandwidth_info(rdev);