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Commit 13c5bfda authored by Alex Deucher's avatar Alex Deucher
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drm/radeon/cik: fix overflow in vram fetch 



Missing ULL when calculating the amount of vram
leads to an overflow when the amount of vram is >= 4G.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 99d79aa2

drivers/gpu/drm/radeon/cik.c

+2 −2
Original line number Diff line number Diff line
@@ -4454,8 +4454,8 @@ 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);