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authorBharat Bhushan <r65777@freescale.com>2012-06-05 03:55:04 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-07-03 14:14:49 +1000
commita5cb82da786f610f7e84a0a8bcf9e0218c363040 (patch)
tree3c5f1d32541fc6e438c9ee3932eaa1119f58fa9d /arch/powerpc/platforms/86xx
parentpowerpc: Optimise the 64bit optimised __clear_user (diff)
downloadlinux-dev-a5cb82da786f610f7e84a0a8bcf9e0218c363040.tar.xz
linux-dev-a5cb82da786f610f7e84a0a8bcf9e0218c363040.zip
powerpc: Fix assmption of end_of_DRAM() returns end address
memblock_end_of_DRAM() returns end_address + 1, not end address. While some code assumes that it returns end address. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/86xx')
-rw-r--r--arch/powerpc/platforms/86xx/mpc86xx_hpcn.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 3755e61d7ecf..817245bc0219 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -102,7 +102,7 @@ mpc86xx_hpcn_setup_arch(void)
#endif
#ifdef CONFIG_SWIOTLB
- if (memblock_end_of_DRAM() > max) {
+ if ((memblock_end_of_DRAM() - 1) > max) {
ppc_swiotlb_enable = 1;
set_pci_dma_ops(&swiotlb_dma_ops);
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;