diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/include/asm/kdump.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/include/asm/kdump.h')
| -rw-r--r-- | kernel/arch/powerpc/include/asm/kdump.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/include/asm/kdump.h b/kernel/arch/powerpc/include/asm/kdump.h new file mode 100644 index 000000000..c9776202d --- /dev/null +++ b/kernel/arch/powerpc/include/asm/kdump.h @@ -0,0 +1,46 @@ +#ifndef _PPC64_KDUMP_H +#define _PPC64_KDUMP_H + +#include <asm/page.h> + +#define KDUMP_KERNELBASE 0x2000000 + +/* How many bytes to reserve at zero for kdump. The reserve limit should + * be greater or equal to the trampoline's end address. + * Reserve to the end of the FWNMI area, see head_64.S */ +#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */ + +#ifdef CONFIG_CRASH_DUMP + +/* + * On PPC64 translation is disabled during trampoline setup, so we use + * physical addresses. Though on PPC32 translation is already enabled, + * so we can't do the same. Luckily create_trampoline() creates relative + * branches, so we can just add the PAGE_OFFSET and don't worry about it. + */ +#ifdef __powerpc64__ +#define KDUMP_TRAMPOLINE_START 0x0100 +#define KDUMP_TRAMPOLINE_END 0x3000 +#else +#define KDUMP_TRAMPOLINE_START (0x0100 + PAGE_OFFSET) +#define KDUMP_TRAMPOLINE_END (0x3000 + PAGE_OFFSET) +#endif /* __powerpc64__ */ + +#define KDUMP_MIN_TCE_ENTRIES 2048 + +#endif /* CONFIG_CRASH_DUMP */ + +#ifndef __ASSEMBLY__ + +#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_NONSTATIC_KERNEL) +extern void reserve_kdump_trampoline(void); +extern void setup_kdump_trampoline(void); +#else +/* !CRASH_DUMP || !NONSTATIC_KERNEL */ +static inline void reserve_kdump_trampoline(void) { ; } +static inline void setup_kdump_trampoline(void) { ; } +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* __PPC64_KDUMP_H */ |