From: Tiejun Chen <tiejun.chen@windriver.com>
To: <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [v3][PATCH 7/8] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET
Date: Tue, 9 Jul 2013 16:03:26 +0800 [thread overview]
Message-ID: <1373357007-30785-8-git-send-email-tiejun.chen@windriver.com> (raw)
In-Reply-To: <1373357007-30785-1-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:[~2013-07-09 8:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-09 8:03 [v3][PATCH 0/8] powerpc/book3e: support kexec and kdump Tiejun Chen
2013-07-09 8:03 ` [v3][PATCH 1/8] powerpc/book3e: rename interrupt_end_book3e with __end_interrupts Tiejun Chen
2013-07-10 5:17 ` Bhushan Bharat-R65777
2013-07-10 5:39 ` tiejun.chen
2013-12-18 3:03 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 2/8] powerpc/book3e: support CONFIG_RELOCATABLE Tiejun Chen
2013-12-18 3:29 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 3/8] book3e/kexec/kdump: enable kexec for kernel Tiejun Chen
2013-12-18 3:35 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 4/8] book3e/kexec/kdump: create a 1:1 TLB mapping Tiejun Chen
2013-12-18 3:39 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 5/8] book3e/kexec/kdump: introduce a kexec kernel flag Tiejun Chen
2013-12-18 3:42 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 6/8] book3e/kexec/kdump: implement ppc64 kexec specfic Tiejun Chen
2013-12-18 3:45 ` Scott Wood
2013-07-09 8:03 ` Tiejun Chen [this message]
2013-07-10 5:20 ` [v3][PATCH 7/8] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET Bhushan Bharat-R65777
2013-07-10 5:46 ` tiejun.chen
2013-12-18 3:48 ` Scott Wood
2013-07-09 8:03 ` [v3][PATCH 8/8] book3e/kexec/kdump: recover "r4 = 0" to create the initial TLB Tiejun Chen
2013-12-18 3:50 ` Scott Wood
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