drm/radeon: Fix VRAM size calculation for VRAM >= 4GB

Add ULL prefix to avoid overflow. Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
git-mirror · May 20, 2013 · fc98603 · fc98603
1 parent 6ab7631
commit fc98603
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Showing 3 changed files with 5 additions and 5 deletions.
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
@@ -3405,8 +3405,8 @@ int evergreen_mc_init(struct radeon_device *rdev)
 		rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
 	} else {
 		/* size in MB on evergreen/cayman/tn */
-		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;
 	r700_vram_gtt_location(rdev, &rdev->mc);

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -726,7 +726,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
 		return r;
 	}
 	DRM_INFO("radeon: %uM of VRAM memory ready\n",
-		 (unsigned)rdev->mc.real_vram_size / (1024 * 1024));
+		 (unsigned) (rdev->mc.real_vram_size / (1024 * 1024)));
 	r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
 				rdev->mc.gtt_size >> PAGE_SHIFT);
 	if (r) {

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
@@ -3397,8 +3397,8 @@ static int si_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);