This is a note to let you know that I've just added the patch titled
powerpc: Make VSID_BITS* dependency explicit
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-make-vsid_bits-dependency-explicit.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e39d1a471484662620651cd9520250d33843f235 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Date: Wed, 13 Mar 2013 03:34:53 +0000
Subject: powerpc: Make VSID_BITS* dependency explicit
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
commit e39d1a471484662620651cd9520250d33843f235 upstream.
VSID_BITS and VSID_BITS_1T depends on the context bits and user esid
bits. Make the dependency explicit
Acked-by: Paul Mackerras <paulus@xxxxxxxxx>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/include/asm/mmu-hash64.h | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -381,21 +381,22 @@ extern void slb_set_size(u16 size);
* hash collisions.
*/
+#define CONTEXT_BITS 19
+#define USER_ESID_BITS 18
+#define USER_ESID_BITS_1T 6
+
/*
* This should be computed such that protovosid * vsid_mulitplier
* doesn't overflow 64 bits. It should also be co-prime to vsid_modulus
*/
#define VSID_MULTIPLIER_256M ASM_CONST(12538073) /* 24-bit prime */
-#define VSID_BITS_256M 38
+#define VSID_BITS_256M (CONTEXT_BITS + USER_ESID_BITS + 1)
#define VSID_MODULUS_256M ((1UL<<VSID_BITS_256M)-1)
#define VSID_MULTIPLIER_1T ASM_CONST(12538073) /* 24-bit prime */
-#define VSID_BITS_1T 26
+#define VSID_BITS_1T (CONTEXT_BITS + USER_ESID_BITS_1T + 1)
#define VSID_MODULUS_1T ((1UL<<VSID_BITS_1T)-1)
-#define CONTEXT_BITS 19
-#define USER_ESID_BITS 18
-#define USER_ESID_BITS_1T 6
#define USER_VSID_RANGE (1UL << (USER_ESID_BITS + SID_SHIFT))
Patches currently in stable-queue which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
queue-3.8/powerpc-rename-user_esid_bits-to-esid_bits.patch
queue-3.8/powerpc-make-vsid_bits-dependency-explicit.patch
queue-3.8/powerpc-update-kernel-vsid-range.patch
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