mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-01-26 12:19:26 +07:00
9ba19ccd2d
- LKMM updates: mostly documentation changes, but also some new litmus tests for atomic ops.
- KCSAN updates: the most important change is that GCC 11 now has all fixes in place
to support KCSAN, so GCC support can be enabled again. Also more annotations.
- futex updates: minor cleanups and simplifications
- seqlock updates: merge preparatory changes/cleanups for the 'associated locks' facilities.
- lockdep updates:
- simplify IRQ trace event handling
- add various new debug checks
- simplify header dependencies, split out <linux/lockdep_types.h>, decouple
lockdep from other low level headers some more
- fix NMI handling
- misc cleanups and smaller fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=3MTT
-----END PGP SIGNATURE-----
Merge tag 'locking-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- LKMM updates: mostly documentation changes, but also some new litmus
tests for atomic ops.
- KCSAN updates: the most important change is that GCC 11 now has all
fixes in place to support KCSAN, so GCC support can be enabled again.
Also more annotations.
- futex updates: minor cleanups and simplifications
- seqlock updates: merge preparatory changes/cleanups for the
'associated locks' facilities.
- lockdep updates:
- simplify IRQ trace event handling
- add various new debug checks
- simplify header dependencies, split out <linux/lockdep_types.h>,
decouple lockdep from other low level headers some more
- fix NMI handling
- misc cleanups and smaller fixes
* tag 'locking-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
kcsan: Improve IRQ state trace reporting
lockdep: Refactor IRQ trace events fields into struct
seqlock: lockdep assert non-preemptibility on seqcount_t write
lockdep: Add preemption enabled/disabled assertion APIs
seqlock: Implement raw_seqcount_begin() in terms of raw_read_seqcount()
seqlock: Add kernel-doc for seqcount_t and seqlock_t APIs
seqlock: Reorder seqcount_t and seqlock_t API definitions
seqlock: seqcount_t latch: End read sections with read_seqcount_retry()
seqlock: Properly format kernel-doc code samples
Documentation: locking: Describe seqlock design and usage
locking/qspinlock: Do not include atomic.h from qspinlock_types.h
locking/atomic: Move ATOMIC_INIT into linux/types.h
lockdep: Move list.h inclusion into lockdep.h
locking/lockdep: Fix TRACE_IRQFLAGS vs. NMIs
futex: Remove unused or redundant includes
futex: Consistently use fshared as boolean
futex: Remove needless goto's
futex: Remove put_futex_key()
rwsem: fix commas in initialisation
docs: locking: Replace HTTP links with HTTPS ones
...
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright IBM Corp. 1999, 2012
|
|
* Author(s): Denis Joseph Barrow,
|
|
* Martin Schwidefsky <schwidefsky@de.ibm.com>,
|
|
* Heiko Carstens <heiko.carstens@de.ibm.com>,
|
|
*/
|
|
#ifndef __ASM_SMP_H
|
|
#define __ASM_SMP_H
|
|
|
|
#include <asm/sigp.h>
|
|
#include <asm/lowcore.h>
|
|
#include <asm/processor.h>
|
|
|
|
#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
|
|
|
|
extern struct mutex smp_cpu_state_mutex;
|
|
extern unsigned int smp_cpu_mt_shift;
|
|
extern unsigned int smp_cpu_mtid;
|
|
extern __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS];
|
|
|
|
extern int __cpu_up(unsigned int cpu, struct task_struct *tidle);
|
|
|
|
extern void arch_send_call_function_single_ipi(int cpu);
|
|
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
|
|
|
|
extern void smp_call_online_cpu(void (*func)(void *), void *);
|
|
extern void smp_call_ipl_cpu(void (*func)(void *), void *);
|
|
extern void smp_emergency_stop(void);
|
|
|
|
extern int smp_find_processor_id(u16 address);
|
|
extern int smp_store_status(int cpu);
|
|
extern void smp_save_dump_cpus(void);
|
|
extern int smp_vcpu_scheduled(int cpu);
|
|
extern void smp_yield_cpu(int cpu);
|
|
extern void smp_cpu_set_polarization(int cpu, int val);
|
|
extern int smp_cpu_get_polarization(int cpu);
|
|
extern int smp_cpu_get_cpu_address(int cpu);
|
|
extern void smp_fill_possible_mask(void);
|
|
extern void smp_detect_cpus(void);
|
|
|
|
static inline void smp_stop_cpu(void)
|
|
{
|
|
u16 pcpu = stap();
|
|
|
|
for (;;) {
|
|
__pcpu_sigp(pcpu, SIGP_STOP, 0, NULL);
|
|
cpu_relax();
|
|
}
|
|
}
|
|
|
|
/* Return thread 0 CPU number as base CPU */
|
|
static inline int smp_get_base_cpu(int cpu)
|
|
{
|
|
return cpu - (cpu % (smp_cpu_mtid + 1));
|
|
}
|
|
|
|
static inline void smp_cpus_done(unsigned int max_cpus)
|
|
{
|
|
}
|
|
|
|
extern int smp_rescan_cpus(void);
|
|
extern void __noreturn cpu_die(void);
|
|
extern void __cpu_die(unsigned int cpu);
|
|
extern int __cpu_disable(void);
|
|
extern void schedule_mcck_handler(void);
|
|
|
|
#endif /* __ASM_SMP_H */
|