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
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 105bafb..06c261b 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3405,8 +3405,8 @@
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
index 93f760e..6c0ce89 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -726,7 +726,7 @@
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
index f0b6c2f..113ed9f 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3397,8 +3397,8 @@
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);