From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH -V7 10/12] arch/powerpc: Use 32bit array for slb cache
Date: Tue, 4 Sep 2012 14:31:27 +0530 [thread overview]
Message-ID: <1346749289-16986-11-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1346749289-16986-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
With larger vsid we need to track more bits of ESID in slb cache
for slb invalidate.
Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/paca.h | 2 +-
arch/powerpc/mm/slb_low.S | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index daf813f..3e7abba 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -100,7 +100,7 @@ struct paca_struct {
/* SLB related definitions */
u16 vmalloc_sllp;
u16 slb_cache_ptr;
- u16 slb_cache[SLB_CACHE_ENTRIES];
+ u32 slb_cache[SLB_CACHE_ENTRIES];
#endif /* CONFIG_PPC_STD_MMU_64 */
#ifdef CONFIG_PPC_BOOK3E
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index 3b75f19..f6a2625 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -270,10 +270,10 @@ _GLOBAL(slb_compare_rr_to_size)
bge 1f
/* still room in the slb cache */
- sldi r11,r3,1 /* r11 = offset * sizeof(u16) */
- rldicl r10,r10,36,28 /* get low 16 bits of the ESID */
- add r11,r11,r13 /* r11 = (u16 *)paca + offset */
- sth r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */
+ sldi r11,r3,2 /* r11 = offset * sizeof(u32) */
+ srdi r10,r10,28 /* get the 36 bits of the ESID */
+ add r11,r11,r13 /* r11 = (u32 *)paca + offset */
+ stw r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */
addi r3,r3,1 /* offset++ */
b 2f
1: /* offset >= SLB_CACHE_ENTRIES */
--
1.7.10
next prev parent reply other threads:[~2012-09-04 9:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-04 9:01 [PATCH -V7 0/12] arch/powerpc: Add 64TB support to ppc64 Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 01/12] arch/powerpc: Replace open coded CONTEXT_BITS value Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 02/12] arch/powerpc: Use hpt_va to compute virtual address Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 03/12] arch/powerpc: Simplify hpte_decode Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 04/12] arch/powerpc: Convert virtual address to vpn Aneesh Kumar K.V
2012-09-05 8:26 ` Paul Mackerras
2012-09-05 14:45 ` Aneesh Kumar K.V
2012-09-06 1:24 ` Paul Mackerras
2012-09-04 9:01 ` [PATCH -V7 05/12] arch/powerpc: Rename va " Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 06/12] arch/powerpc: Make KERN_VIRT_SIZE not dependend on PGTABLE_RANGE Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 07/12] arch/powerpc: Increase the slice range to 64TB Aneesh Kumar K.V
2012-09-05 23:47 ` Paul Mackerras
2012-09-04 9:01 ` [PATCH -V7 08/12] arch/powerpc: Make some of the PGTABLE_RANGE dependency explicit Aneesh Kumar K.V
2012-09-04 9:01 ` [PATCH -V7 09/12] arch/powerpc: Use the required number of VSID bits in slbmte Aneesh Kumar K.V
2012-09-04 9:01 ` Aneesh Kumar K.V [this message]
2012-09-04 9:01 ` [PATCH -V7 11/12] arch/powerpc: Add 64TB support Aneesh Kumar K.V
2012-09-06 1:21 ` Paul Mackerras
2012-09-04 9:01 ` [PATCH -V7 12/12] arch/powerpc: Update VSID allocation documentation Aneesh Kumar K.V
2012-09-06 1:23 ` Paul Mackerras
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