Contributors: 19
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Michael Ellerman |
136 |
26.05% |
6 |
20.69% |
| Thiago Jung Bauermann |
103 |
19.73% |
4 |
13.79% |
| Arnd Bergmann |
42 |
8.05% |
2 |
6.90% |
| R Sharada |
39 |
7.47% |
1 |
3.45% |
| Haren Myneni |
37 |
7.09% |
1 |
3.45% |
| Guenter Roeck |
28 |
5.36% |
1 |
3.45% |
| Michael Neuling |
28 |
5.36% |
2 |
6.90% |
| Hari Bathini |
26 |
4.98% |
1 |
3.45% |
| David J. Wilder |
20 |
3.83% |
1 |
3.45% |
| Sebastian Andrzej Siewior |
15 |
2.87% |
1 |
3.45% |
| Balbir Singh |
13 |
2.49% |
1 |
3.45% |
| Suzuki K. Poulose |
10 |
1.92% |
1 |
3.45% |
| Anton Vorontsov |
7 |
1.34% |
1 |
3.45% |
| Matthew McClintock |
7 |
1.34% |
1 |
3.45% |
| Albert Herranz |
5 |
0.96% |
1 |
3.45% |
| Kumar Gala |
3 |
0.57% |
1 |
3.45% |
| Greg Kroah-Hartman |
1 |
0.19% |
1 |
3.45% |
| AKASHI Takahiro |
1 |
0.19% |
1 |
3.45% |
| Huang Ying |
1 |
0.19% |
1 |
3.45% |
| Total |
522 |
|
29 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_KEXEC_H
#define _ASM_POWERPC_KEXEC_H
#ifdef __KERNEL__
#if defined(CONFIG_FSL_BOOKE) || defined(CONFIG_44x)
/*
* On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
* and therefore we can only deal with memory within this range
*/
#define KEXEC_SOURCE_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
#define KEXEC_CONTROL_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
#else
/*
* Maximum page that is mapped directly into kernel memory.
* XXX: Since we copy virt we can use any page we allocate
*/
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/*
* Maximum address we can reach in physical address mode.
* XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR.
*/
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
/* Maximum address we can use for the control code buffer */
#ifdef __powerpc64__
#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
#else
/* TASK_SIZE, probably left over from use_mm ?? */
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
#endif
#endif
#define KEXEC_CONTROL_PAGE_SIZE 4096
/* The native architecture */
#ifdef __powerpc64__
#define KEXEC_ARCH KEXEC_ARCH_PPC64
#else
#define KEXEC_ARCH KEXEC_ARCH_PPC
#endif
#define KEXEC_STATE_NONE 0
#define KEXEC_STATE_IRQS_OFF 1
#define KEXEC_STATE_REAL_MODE 2
#ifndef __ASSEMBLY__
#include <asm/reg.h>
typedef void (*crash_shutdown_t)(void);
#ifdef CONFIG_KEXEC_CORE
/*
* This function is responsible for capturing register states if coming
* via panic or invoking dump using sysrq-trigger.
*/
static inline void crash_setup_regs(struct pt_regs *newregs,
struct pt_regs *oldregs)
{
if (oldregs)
memcpy(newregs, oldregs, sizeof(*newregs));
else
ppc_save_regs(newregs);
}
extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
master to copy new code to 0 */
extern int crashing_cpu;
extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *));
extern void crash_ipi_callback(struct pt_regs *);
extern int crash_wake_offline;
struct kimage;
struct pt_regs;
extern void default_machine_kexec(struct kimage *image);
extern int default_machine_kexec_prepare(struct kimage *image);
extern void default_machine_crash_shutdown(struct pt_regs *regs);
extern int crash_shutdown_register(crash_shutdown_t handler);
extern int crash_shutdown_unregister(crash_shutdown_t handler);
extern void crash_kexec_secondary(struct pt_regs *regs);
extern int overlaps_crashkernel(unsigned long start, unsigned long size);
extern void reserve_crashkernel(void);
extern void machine_kexec_mask_interrupts(void);
static inline bool kdump_in_progress(void)
{
return crashing_cpu >= 0;
}
#ifdef CONFIG_KEXEC_FILE
extern const struct kexec_file_ops kexec_elf64_ops;
#ifdef CONFIG_IMA_KEXEC
#define ARCH_HAS_KIMAGE_ARCH
struct kimage_arch {
phys_addr_t ima_buffer_addr;
size_t ima_buffer_size;
};
#endif
int setup_purgatory(struct kimage *image, const void *slave_code,
const void *fdt, unsigned long kernel_load_addr,
unsigned long fdt_load_addr);
int setup_new_fdt(const struct kimage *image, void *fdt,
unsigned long initrd_load_addr, unsigned long initrd_len,
const char *cmdline);
int delete_fdt_mem_rsv(void *fdt, unsigned long start, unsigned long size);
#endif /* CONFIG_KEXEC_FILE */
#else /* !CONFIG_KEXEC_CORE */
static inline void crash_kexec_secondary(struct pt_regs *regs) { }
static inline int overlaps_crashkernel(unsigned long start, unsigned long size)
{
return 0;
}
static inline void reserve_crashkernel(void) { ; }
static inline int crash_shutdown_register(crash_shutdown_t handler)
{
return 0;
}
static inline int crash_shutdown_unregister(crash_shutdown_t handler)
{
return 0;
}
static inline bool kdump_in_progress(void)
{
return false;
}
static inline void crash_ipi_callback(struct pt_regs *regs) { }
static inline void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
{
}
#endif /* CONFIG_KEXEC_CORE */
#endif /* ! __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_KEXEC_H */