From: Haren Myneni <haren@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, anton@au1.ibm.com,
mikey@neuling.org
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 3/6] powerpc: Increase exceptions arrays in paca struct to save PPR
Date: Tue, 30 Oct 2012 23:54:22 -0700 [thread overview]
Message-ID: <1351666462.32304.16.camel@hbabu-laptop> (raw)
[PATCH 3/6] powerpc: Increase exceptions arrays in paca struct to save PPR
Using paca to save user defined PPR value in the first level exception vector.
Signed-off-by: Haren Myneni <haren@us.ibm.com>
---
arch/powerpc/include/asm/exception-64s.h | 1 +
arch/powerpc/include/asm/paca.h | 6 +++---
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 45702e0..bfd3f1f 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -47,6 +47,7 @@
#define EX_R3 64
#define EX_LR 72
#define EX_CFAR 80
+#define EX_PPR 88 /* SMT thread status register (priority) */
/*
* We're short on space and time in the exception prolog, so we can't
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index e9e7a69..c47d687 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -93,9 +93,9 @@ struct paca_struct {
* Now, starting in cacheline 2, the exception save areas
*/
/* used for most interrupts/exceptions */
- u64 exgen[11] __attribute__((aligned(0x80)));
- u64 exmc[11]; /* used for machine checks */
- u64 exslb[11]; /* used for SLB/segment table misses
+ u64 exgen[12] __attribute__((aligned(0x80)));
+ u64 exmc[12]; /* used for machine checks */
+ u64 exslb[12]; /* used for SLB/segment table misses
* on the linear mapping */
/* SLB related definitions */
u16 vmalloc_sllp;
--
1.7.1
next reply other threads:[~2012-10-31 6:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-31 6:54 Haren Myneni [this message]
2012-12-07 7:48 [PATCH 3/6] powerpc: Increase exceptions arrays in paca struct to save PPR Haren Myneni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1351666462.32304.16.camel@hbabu-laptop \
--to=haren@linux.vnet.ibm.com \
--cc=anton@au1.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mikey@neuling.org \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).