linux/include/acpi/apei.h
Tomasz Nowicki 594c7255dc acpi, apei, ghes: Factor out ioremap virtual memory for IRQ and NMI context.
GHES currently maps two pages with atomic_ioremap.  From now
on, NMI is architectural depended so there is no need to allocate
an NMI page for platforms without NMI support.

To make it possible to not use a second page, swap the existing
page order so that the IRQ context page is first, and the optional
NMI context page is second.  Then, use HAVE_ACPI_APEI_NMI to decide
how many pages are to be allocated.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2014-07-22 15:05:06 -07:00

51 lines
1.3 KiB
C

/*
* apei.h - ACPI Platform Error Interface
*/
#ifndef ACPI_APEI_H
#define ACPI_APEI_H
#include <linux/acpi.h>
#include <linux/cper.h>
#include <asm/ioctls.h>
#define APEI_ERST_INVALID_RECORD_ID 0xffffffffffffffffULL
#define APEI_ERST_CLEAR_RECORD _IOW('E', 1, u64)
#define APEI_ERST_GET_RECORD_COUNT _IOR('E', 2, u32)
#ifdef __KERNEL__
extern bool hest_disable;
extern int erst_disable;
#ifdef CONFIG_ACPI_APEI_GHES
extern bool ghes_disable;
#else
#define ghes_disable 1
#endif
#ifdef CONFIG_ACPI_APEI
void __init acpi_hest_init(void);
#else
static inline void acpi_hest_init(void) { return; }
#endif
typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
int apei_hest_parse(apei_hest_func_t func, void *data);
int erst_write(const struct cper_record_header *record);
ssize_t erst_get_record_count(void);
int erst_get_record_id_begin(int *pos);
int erst_get_record_id_next(int *pos, u64 *record_id);
void erst_get_record_id_end(void);
ssize_t erst_read(u64 record_id, struct cper_record_header *record,
size_t buflen);
int erst_clear(u64 record_id);
int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data);
void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
void arch_apei_flush_tlb_one(unsigned long addr);
#endif
#endif