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From: Alan <gnomes@lxorguk.ukuu.org.uk>
To: dri-devel@lists.freedesktop.org
Subject: [PATCH] nouveau: Fix missing types on shift
Date: Wed, 17 Feb 2016 14:20:58 +0000	[thread overview]
Message-ID: <20160217142056.4997.56683.stgit@localhost.localdomain> (raw)

Shifting 1 into a u64 doesn't do what you might expect. Force the width
before shifting.

Signed-off-by: Alan Cox <alan@linux.intel.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
index 7ac507c..6867746 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
@@ -103,7 +103,7 @@ static void
 gf100_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt,
 	     struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
 {
-	u64 next = 1 << (vma->node->type - 8);
+	u64 next = 1ULL << (vma->node->type - 8);
 
 	phys  = gf100_vm_addr(vma, phys, mem->memtype, 0);
 	pte <<= 3;

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                 reply	other threads:[~2016-02-17 14:21 UTC|newest]

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