mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 02:26:41 +07:00
cd979883b9
syscore->resume() callback is expected to do not enable interrupts, it generates warning like below otherwise: [ 9386.365390] WARNING: CPU: 0 PID: 6733 at drivers/base/syscore.c:104 syscore_resume+0x9a/0xe0() [ 9386.365403] Interrupts enabled after xen_acpi_processor_resume+0x0/0x34 [xen_acpi_processor] ... [ 9386.365429] Call Trace: [ 9386.365434] [<ffffffff81667a8b>] dump_stack+0x45/0x56 [ 9386.365437] [<ffffffff8106921d>] warn_slowpath_common+0x7d/0xa0 [ 9386.365439] [<ffffffff8106928c>] warn_slowpath_fmt+0x4c/0x50 [ 9386.365442] [<ffffffffa0261bb0>] ? xen_upload_processor_pm_data+0x300/0x300 [xen_acpi_processor] [ 9386.365443] [<ffffffff814055fa>] syscore_resume+0x9a/0xe0 [ 9386.365445] [<ffffffff810aef42>] suspend_devices_and_enter+0x402/0x470 [ 9386.365447] [<ffffffff810af128>] pm_suspend+0x178/0x260 On xen_acpi_processor_resume() we call various procedures, which are non atomic and can enable interrupts. To prevent the issue introduce separate resume notify called after we enable interrupts on resume and before we call other drivers resume callbacks. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
#ifndef INCLUDE_XEN_OPS_H
|
|
#define INCLUDE_XEN_OPS_H
|
|
|
|
#include <linux/percpu.h>
|
|
#include <linux/notifier.h>
|
|
#include <asm/xen/interface.h>
|
|
|
|
DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
|
|
|
|
void xen_arch_pre_suspend(void);
|
|
void xen_arch_post_suspend(int suspend_cancelled);
|
|
void xen_arch_hvm_post_suspend(int suspend_cancelled);
|
|
|
|
void xen_mm_pin_all(void);
|
|
void xen_mm_unpin_all(void);
|
|
|
|
void xen_timer_resume(void);
|
|
void xen_arch_resume(void);
|
|
|
|
void xen_resume_notifier_register(struct notifier_block *nb);
|
|
void xen_resume_notifier_unregister(struct notifier_block *nb);
|
|
|
|
int xen_setup_shutdown_event(void);
|
|
|
|
extern unsigned long *xen_contiguous_bitmap;
|
|
int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
|
|
unsigned int address_bits,
|
|
dma_addr_t *dma_handle);
|
|
|
|
void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
|
|
|
|
struct vm_area_struct;
|
|
int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
|
|
unsigned long addr,
|
|
xen_pfn_t mfn, int nr,
|
|
pgprot_t prot, unsigned domid,
|
|
struct page **pages);
|
|
int xen_unmap_domain_mfn_range(struct vm_area_struct *vma,
|
|
int numpgs, struct page **pages);
|
|
|
|
bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
|
|
#endif /* INCLUDE_XEN_OPS_H */
|