From: David S. Miller <davem@davemloft.net>
Date: Tue, 29 Nov 2005 21:59:03 +0000 (-0800)
Subject: [SPARC64]: Fix >8K I/O mappings.
X-Git-Tag: firefly_0821_release~39706^2~16^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cab3f16febeaf1a60e38159ff578f609f9976544;p=firefly-linux-kernel-4.4.55.git

[SPARC64]: Fix >8K I/O mappings.

Increment the PFN field of the PTE so that the tests
on vm_pfn in mm/memory.c match up.  The TLB ignores these
lower bits for larger page sizes, so it's OK to set things
like this.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c
index d9396c1721cd..580b63da836b 100644
--- a/arch/sparc64/mm/generic.c
+++ b/arch/sparc64/mm/generic.c
@@ -77,6 +77,7 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte,
 			BUG_ON(!pte_none(*pte));
 			set_pte_at(mm, address, pte, entry);
 			address += PAGE_SIZE;
+			pte_val(entry) += PAGE_SIZE;
 			pte++;
 		} while (address < curend);
 	} while (address < end);