From: Tiejun Chen <tiejun.chen@windriver.com>
To: <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [v2][PATCH 6/7] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET
Date: Thu, 20 Jun 2013 15:53:16 +0800 [thread overview]
Message-ID: <1371714797-7898-7-git-send-email-tiejun.chen@windriver.com> (raw)
In-Reply-To: <1371714797-7898-1-git-send-email-tiejun.chen@windriver.com>
Book3e is always aligned 1GB to create TLB so we should
use (KERNELBASE - MEMORY_START) as VIRT_PHYS_OFFSET to
get __pa/__va properly while boot kdump.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
---
arch/powerpc/include/asm/page.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 988c812..5b00081 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -112,6 +112,8 @@ extern long long virt_phys_offset;
/* See Description below for VIRT_PHYS_OFFSET */
#ifdef CONFIG_RELOCATABLE_PPC32
#define VIRT_PHYS_OFFSET virt_phys_offset
+#elif defined(CONFIG_PPC_BOOK3E_64)
+#define VIRT_PHYS_OFFSET (KERNELBASE - MEMORY_START)
#else
#define VIRT_PHYS_OFFSET (KERNELBASE - PHYSICAL_START)
#endif
--
1.7.9.5
next prev parent reply other threads:[~2013-06-20 7:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 7:53 [v2][PATCH 0/7] powerpc/book3e: support kexec and kdump Tiejun Chen
2013-06-20 7:53 ` [v2][PATCH 1/7] powerpc/book3e: support CONFIG_RELOCATABLE Tiejun Chen
2013-07-02 5:00 ` Bhushan Bharat-R65777
2013-07-09 7:49 ` tiejun.chen
2013-07-03 11:52 ` Sethi Varun-B16395
2013-07-09 7:55 ` tiejun.chen
2013-06-20 7:53 ` [v2][PATCH 2/7] book3e/kexec/kdump: enable kexec for kernel Tiejun Chen
2013-07-02 5:17 ` Bhushan Bharat-R65777
2013-07-09 7:50 ` tiejun.chen
2013-06-20 7:53 ` [v2][PATCH 3/7] book3e/kexec/kdump: create a 1:1 TLB mapping Tiejun Chen
2013-06-20 7:53 ` [v2][PATCH 4/7] book3e/kexec/kdump: introduce a kexec kernel flag Tiejun Chen
2013-07-02 5:37 ` Bhushan Bharat-R65777
2013-07-09 7:51 ` tiejun.chen
2013-06-20 7:53 ` [v2][PATCH 5/7] book3e/kexec/kdump: implement ppc64 kexec specfic Tiejun Chen
2013-06-20 7:53 ` Tiejun Chen [this message]
2013-06-20 7:53 ` [v2][PATCH 7/7] book3e/kexec/kdump: recover "r4 = 0" to create the initial TLB Tiejun Chen
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