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415e12b237
Move the evaluation of acpi_pci_osc_control_set() (to request control of PCI Express native features) into acpi_pci_root_add() to avoid calling it many times for the same root complex with the same arguments. Additionally, check if all of the requisite _OSC support bits are set before calling acpi_pci_osc_control_set() for a given root complex. References: https://bugzilla.kernel.org/show_bug.cgi?id=20232 Reported-by: Ozan Caglayan <ozan@pardus.org.tr> Tested-by: Ozan Caglayan <ozan@pardus.org.tr> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
41 lines
1005 B
C
41 lines
1005 B
C
/*
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* apei.h - ACPI Platform Error Interface
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*/
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#ifndef ACPI_APEI_H
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#define ACPI_APEI_H
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#include <linux/acpi.h>
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#include <linux/cper.h>
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#include <asm/ioctls.h>
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#define APEI_ERST_INVALID_RECORD_ID 0xffffffffffffffffULL
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#define APEI_ERST_CLEAR_RECORD _IOW('E', 1, u64)
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#define APEI_ERST_GET_RECORD_COUNT _IOR('E', 2, u32)
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#ifdef __KERNEL__
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extern int hest_disable;
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extern int erst_disable;
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#ifdef CONFIG_ACPI_APEI
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void __init acpi_hest_init(void);
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#else
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static inline void acpi_hest_init(void) { return; }
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#endif
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typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
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int apei_hest_parse(apei_hest_func_t func, void *data);
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int erst_write(const struct cper_record_header *record);
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ssize_t erst_get_record_count(void);
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int erst_get_next_record_id(u64 *record_id);
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ssize_t erst_read(u64 record_id, struct cper_record_header *record,
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size_t buflen);
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ssize_t erst_read_next(struct cper_record_header *record, size_t buflen);
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int erst_clear(u64 record_id);
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#endif
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#endif
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