From: keith mannthey <kmannth@us.ibm.com>
To: lkml <linux-kernel@vger.kernel.org>
Cc: andrew <akpm@osdl.org>, Vivek goyal <vgoyal@in.ibm.com>,
dave hansen <haveblue@us.ibm.com>
Subject: [Patch] i386 bootioremap / kexec fix
Date: Thu, 21 Sep 2006 19:54:45 -0700 [thread overview]
Message-ID: <1158893685.5657.72.camel@keithlap> (raw)
With CONFIG_PHYSICAL_START set to a non default values the i386
boot_ioremap code calculated its pte index wrong and users of
boot_ioremap have their areas incorrectly mapped (for me SRAT table not
mapped during early boot). This patch removes the addr < BOOT_PTE_PTRS
constraint.
Signed-off-by: Keith Mannthey<kmannth@us.ibm.com>
---
boot_ioremap.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff -urN linux-2.6.18-rc6-mm2-orig/arch/i386/mm/boot_ioremap.c
linux-2.6.17/arch/i386/mm/boot_ioremap.c
--- linux-2.6.18-rc6-mm2-orig/arch/i386/mm/boot_ioremap.c 2006-09-18
01:19:22.000000000 -0700
+++ linux-2.6.17/arch/i386/mm/boot_ioremap.c 2006-09-18
01:23:33.000000000 -0700
@@ -29,8 +29,11 @@
*/
#define BOOT_PTE_PTRS (PTRS_PER_PTE*2)
-#define boot_pte_index(address) \
- (((address) >> PAGE_SHIFT) & (BOOT_PTE_PTRS - 1))
+
+static unsigned long boot_pte_index(unsigned long vaddr)
+{
+ return __pa(vaddr) >> PAGE_SHIFT;
+}
static inline boot_pte_t* boot_vaddr_to_pte(void *address)
{
next reply other threads:[~2006-09-22 2:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-22 2:54 keith mannthey [this message]
2006-09-22 3:16 ` [Patch] i386 bootioremap / kexec fix Andrew Morton
2006-09-22 17:11 ` keith mannthey
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=1158893685.5657.72.camel@keithlap \
--to=kmannth@us.ibm.com \
--cc=akpm@osdl.org \
--cc=haveblue@us.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=vgoyal@in.ibm.com \
/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