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kernel-49/arch/mips/include/asm/smp.h
Greg Kroah-Hartman f61f3b1c19 Merge 4.9.194 into android-4.9
Changes in 4.9.194
	bridge/mdb: remove wrong use of NLM_F_MULTI
	cdc_ether: fix rndis support for Mediatek based smartphones
	ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()'
	isdn/capi: check message length in capi_write()
	net: Fix null de-reference of device refcount
	net: gso: Fix skb_segment splat when splitting gso_size mangled skb having linear-headed frag_list
	sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero
	sctp: Fix the link time qualifier of 'sctp_ctrlsock_exit()'
	sctp: use transport pf_retrans in sctp_do_8_2_transport_strike
	tcp: fix tcp_ecn_withdraw_cwr() to clear TCP_ECN_QUEUE_CWR
	tipc: add NULL pointer check before calling kfree_rcu
	tun: fix use-after-free when register netdev failed
	Revert "MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur"
	gpio: fix line flag validation in linehandle_create
	gpio: fix line flag validation in lineevent_create
	Btrfs: fix assertion failure during fsync and use of stale transaction
	genirq: Prevent NULL pointer dereference in resend_irqs()
	KVM: s390: Do not leak kernel stack data in the KVM_S390_INTERRUPT ioctl
	KVM: x86: work around leak of uninitialized stack contents
	KVM: nVMX: handle page fault in vmread
	MIPS: VDSO: Prevent use of smp_processor_id()
	MIPS: VDSO: Use same -m%-float cflag as the kernel proper
	clk: rockchip: Don't yell about bad mmc phases when getting
	mtd: rawnand: mtk: Fix wrongly assigned OOB buffer pointer issue
	driver core: Fix use-after-free and double free on glue directory
	crypto: talitos - check AES key size
	crypto: talitos - fix CTR alg blocksize
	crypto: talitos - check data blocksize in ablkcipher.
	crypto: talitos - fix ECB algs ivsize
	crypto: talitos - Do not modify req->cryptlen on decryption.
	crypto: talitos - HMAC SNOOP NO AFEU mode requires SW icv checking.
	drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto
	nvmem: Use the same permissions for eeprom as for nvmem
	x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning
	USB: usbcore: Fix slab-out-of-bounds bug during device reset
	media: tm6000: double free if usb disconnect while streaming
	powerpc/mm/radix: Use the right page size for vmemmap mapping
	x86/boot: Add missing bootparam that breaks boot on some platforms
	xen-netfront: do not assume sk_buff_head list is empty in error handling
	KVM: coalesced_mmio: add bounds checking
	serial: sprd: correct the wrong sequence of arguments
	tty/serial: atmel: reschedule TX after RX was started
	mwifiex: Fix three heap overflow at parsing element in cfg80211_ap_settings
	ARM: OMAP2+: Fix missing SYSC_HAS_RESET_STATUS for dra7 epwmss
	s390/bpf: fix lcgr instruction encoding
	ARM: OMAP2+: Fix omap4 errata warning on other SoCs
	s390/bpf: use 32-bit index for tail calls
	NFSv4: Fix return values for nfs4_file_open()
	NFS: Fix initialisation of I/O result struct in nfs_pgio_rpcsetup
	Kconfig: Fix the reference to the IDT77105 Phy driver in the description of ATM_NICSTAR_USE_IDT77105
	qed: Add cleanup in qed_slowpath_start()
	ARM: 8874/1: mm: only adjust sections of valid mm structures
	batman-adv: Only read OGM2 tvlv_len after buffer len check
	r8152: Set memory to all 0xFFs on failed reg reads
	x86/apic: Fix arch_dynirq_lower_bound() bug for DT enabled machines
	netfilter: nf_conntrack_ftp: Fix debug output
	NFSv2: Fix eof handling
	NFSv2: Fix write regression
	cifs: set domainName when a domain-key is used in multiuser
	cifs: Use kzfree() to zero out the password
	ARM: 8901/1: add a criteria for pfn_valid of arm
	sky2: Disable MSI on yet another ASUS boards (P6Xxxx)
	perf/x86/intel: Restrict period on Nehalem
	perf/x86/amd/ibs: Fix sample bias for dispatched micro-ops
	tools/power turbostat: fix buffer overrun
	net: seeq: Fix the function used to release some memory in an error handling path
	dmaengine: ti: dma-crossbar: Fix a memory leak bug
	dmaengine: ti: omap-dma: Add cleanup in omap_dma_probe()
	x86/uaccess: Don't leak the AC flags into __get_user() argument evaluation
	keys: Fix missing null pointer check in request_key_auth_describe()
	iommu/amd: Fix race in increase_address_space()
	floppy: fix usercopy direction
	media: technisat-usb2: break out of loop at end of buffer
	ARC: export "abort" for modules
	net_sched: let qdisc_put() accept NULL pointer
	Linux 4.9.194

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2019-09-22 17:06:19 +03:00

123 lines
3.3 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
* Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
* Copyright (C) 2000, 2001, 2002 Ralf Baechle
* Copyright (C) 2000, 2001 Broadcom Corporation
*/
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
#include <linux/bitops.h>
#include <linux/linkage.h>
#include <linux/smp.h>
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/atomic.h>
#include <asm/smp-ops.h>
extern int smp_num_siblings;
extern cpumask_t cpu_sibling_map[];
extern cpumask_t cpu_core_map[];
extern cpumask_t cpu_foreign_map[];
static inline int raw_smp_processor_id(void)
{
#if defined(__VDSO__)
extern int vdso_smp_processor_id(void)
__compiletime_error("VDSO should not call smp_processor_id()");
return vdso_smp_processor_id();
#else
return current_thread_info()->cpu;
#endif
}
#define raw_smp_processor_id raw_smp_processor_id
/* Map from cpu id to sequential logical cpu number. This will only
not be idempotent when cpus failed to come on-line. */
extern int __cpu_number_map[NR_CPUS];
#define cpu_number_map(cpu) __cpu_number_map[cpu]
/* The reverse map from sequential logical cpu number to cpu id. */
extern int __cpu_logical_map[NR_CPUS];
#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
#define NO_PROC_ID (-1)
#define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */
#define SMP_CALL_FUNCTION 0x2
/* Octeon - Tell another core to flush its icache */
#define SMP_ICACHE_FLUSH 0x4
#define SMP_ASK_C0COUNT 0x8
/* Mask of CPUs which are currently definitely operating coherently */
extern cpumask_t cpu_coherent_mask;
extern void asmlinkage smp_bootstrap(void);
extern void calculate_cpu_foreign_map(void);
/*
* this function sends a 'reschedule' IPI to another CPU.
* it goes straight through and wastes no time serializing
* anything. Worst case is that we lose a reschedule ...
*/
static inline void smp_send_reschedule(int cpu)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF);
}
#ifdef CONFIG_HOTPLUG_CPU
static inline int __cpu_disable(void)
{
extern const struct plat_smp_ops *mp_ops; /* private */
return mp_ops->cpu_disable();
}
static inline void __cpu_die(unsigned int cpu)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->cpu_die(cpu);
}
extern void play_dead(void);
#endif
/*
* This function will set up the necessary IPIs for Linux to communicate
* with the CPUs in mask.
* Return 0 on success.
*/
int mips_smp_ipi_allocate(const struct cpumask *mask);
/*
* This function will free up IPIs allocated with mips_smp_ipi_allocate to the
* CPUs in mask, which must be a subset of the IPIs that have been configured.
* Return 0 on success.
*/
int mips_smp_ipi_free(const struct cpumask *mask);
static inline void arch_send_call_function_single_ipi(int cpu)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_mask(cpumask_of(cpu), SMP_CALL_FUNCTION);
}
static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
}
#endif /* __ASM_SMP_H */