From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH V2 02/11] powerpc/mm/slice: when computing slice mask limit lowe slice max addr correctly
Date: Thu, 16 Mar 2017 16:02:00 +0530 [thread overview]
Message-ID: <1489660329-22501-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1489660329-22501-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
For low slice max addr should be less that 4G
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/mm/slice.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 2b27458902ee..bf150557dba8 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -83,11 +83,10 @@ static struct slice_mask slice_range_to_mask(unsigned long start,
struct slice_mask ret = { 0, 0 };
if (start < SLICE_LOW_TOP) {
- unsigned long mend = min(end, SLICE_LOW_TOP);
- unsigned long mstart = min(start, SLICE_LOW_TOP);
+ unsigned long mend = min(end, (SLICE_LOW_TOP - 1));
ret.low_slices = (1u << (GET_LOW_SLICE_INDEX(mend) + 1))
- - (1u << GET_LOW_SLICE_INDEX(mstart));
+ - (1u << GET_LOW_SLICE_INDEX(start));
}
if ((start + len) > SLICE_LOW_TOP)
--
2.7.4
next prev parent reply other threads:[~2017-03-16 10:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-16 10:31 [PATCH V2 00/11] powerpc/mm/hash: Cleanup and fixes Aneesh Kumar K.V
2017-03-16 10:31 ` [PATCH V2 01/11] powerpc/mm/nohash: MM_SLICE is only used by book3s 64 Aneesh Kumar K.V
2017-03-16 22:00 ` Paul Mackerras
2017-03-16 10:32 ` Aneesh Kumar K.V [this message]
2017-03-16 22:03 ` [PATCH V2 02/11] powerpc/mm/slice: when computing slice mask limit lowe slice max addr correctly Paul Mackerras
2017-03-17 6:55 ` Aneesh Kumar K.V
2017-03-16 10:32 ` [PATCH V2 03/11] powerpc/mm: Cleanup bits definition between hash and radix Aneesh Kumar K.V
2017-03-16 22:16 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 04/11] powerpc/mm/radix: rename _PAGE_LARGE to R_PAGE_LARGE Aneesh Kumar K.V
2017-03-16 22:16 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 05/11] powerpc/mm: Add translation mode information in /proc/cpuinfo Aneesh Kumar K.V
2017-03-16 22:17 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 06/11] powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout Aneesh Kumar K.V
2017-03-16 22:19 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 07/11] powerpc/mm: Conditional defines of pte bits are messy Aneesh Kumar K.V
2017-03-16 22:21 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 08/11] powerpc/mm: Express everything based on Radix page table defines Aneesh Kumar K.V
2017-03-16 22:24 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 09/11] powerpc/mm: Lower the max real address to 51 bits Aneesh Kumar K.V
2017-03-16 21:26 ` Benjamin Herrenschmidt
2017-03-17 3:39 ` Aneesh Kumar K.V
2017-03-16 22:27 ` Paul Mackerras
2017-03-16 10:32 ` [PATCH V2 10/11] powerpc/mm/radix: Make max pfn bits a variable Aneesh Kumar K.V
2017-03-16 22:29 ` Paul Mackerras
2017-03-17 8:54 ` Aneesh Kumar K.V
2017-03-16 10:32 ` [PATCH V2 11/11] powerpc/mm: Move hash specific pte bits to be top bits of RPN Aneesh Kumar K.V
2017-03-16 22:34 ` Paul Mackerras
2017-03-17 3:37 ` Aneesh Kumar K.V
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