aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/include/asm/kexec.h
diff options
context:
space:
mode:
authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-17 16:15:55 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-17 16:15:55 -0500
commit8dea78da5cee153b8af9c07a2745f6c55057fe12 (patch)
treea8f4d49d63b1ecc92f2fddceba0655b2472c5bd9 /arch/s390/include/asm/kexec.h
parent406089d01562f1e2bf9f089fd7637009ebaad589 (diff)
Patched in Tegra support.
Diffstat (limited to 'arch/s390/include/asm/kexec.h')
-rw-r--r--arch/s390/include/asm/kexec.h32
1 files changed, 6 insertions, 26 deletions
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index 694bcd6bd92..bb729b84a21 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -1,5 +1,7 @@
1/* 1/*
2 * Copyright IBM Corp. 2005 2 * include/asm-s390/kexec.h
3 *
4 * (C) Copyright IBM Corp. 2005
3 * 5 *
4 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com> 6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
5 * 7 *
@@ -8,8 +10,10 @@
8#ifndef _S390_KEXEC_H 10#ifndef _S390_KEXEC_H
9#define _S390_KEXEC_H 11#define _S390_KEXEC_H
10 12
11#include <asm/processor.h> 13#ifdef __KERNEL__
12#include <asm/page.h> 14#include <asm/page.h>
15#endif
16#include <asm/processor.h>
13/* 17/*
14 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. 18 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
15 * I.e. Maximum page that is mapped directly into kernel memory, 19 * I.e. Maximum page that is mapped directly into kernel memory,
@@ -26,36 +30,12 @@
26/* Not more than 2GB */ 30/* Not more than 2GB */
27#define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31) 31#define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31)
28 32
29/* Maximum address we can use for the crash control pages */
30#define KEXEC_CRASH_CONTROL_MEMORY_LIMIT (-1UL)
31
32/* Allocate one page for the pdp and the second for the code */ 33/* Allocate one page for the pdp and the second for the code */
33#define KEXEC_CONTROL_PAGE_SIZE 4096 34#define KEXEC_CONTROL_PAGE_SIZE 4096
34 35
35/* Alignment of crashkernel memory */
36#define KEXEC_CRASH_MEM_ALIGN HPAGE_SIZE
37
38/* The native architecture */ 36/* The native architecture */
39#define KEXEC_ARCH KEXEC_ARCH_S390 37#define KEXEC_ARCH KEXEC_ARCH_S390
40 38
41/*
42 * Size for s390x ELF notes per CPU
43 *
44 * Seven notes plus zero note at the end: prstatus, fpregset, timer,
45 * tod_cmp, tod_reg, control regs, and prefix
46 */
47#define KEXEC_NOTE_BYTES \
48 (ALIGN(sizeof(struct elf_note), 4) * 8 + \
49 ALIGN(sizeof("CORE"), 4) * 7 + \
50 ALIGN(sizeof(struct elf_prstatus), 4) + \
51 ALIGN(sizeof(elf_fpregset_t), 4) + \
52 ALIGN(sizeof(u64), 4) + \
53 ALIGN(sizeof(u64), 4) + \
54 ALIGN(sizeof(u32), 4) + \
55 ALIGN(sizeof(u64) * 16, 4) + \
56 ALIGN(sizeof(u32), 4) \
57 )
58
59/* Provide a dummy definition to avoid build failures. */ 39/* Provide a dummy definition to avoid build failures. */
60static inline void crash_setup_regs(struct pt_regs *newregs, 40static inline void crash_setup_regs(struct pt_regs *newregs,
61 struct pt_regs *oldregs) { } 41 struct pt_regs *oldregs) { }