OpenSDV
/
linux-stable-rt
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
linux-stable-rt/arch/blackfin/include/asm/smp.h

45 lines
1.0 KiB
C
Raw Normal View History

Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
/*
Blackfin: mass clean up of copyright/licensing info Bill Gatliff & David Brownell pointed out we were missing some copyrights, and licensing terms in some of the files in ./arch/blackfin, so this fixes things, and cleans them up. It also removes: - verbose GPL text(refer to the top level ./COPYING file) - file names (you are looking at the file) - bug url (it's in the ./MAINTAINERS file) - "or later" on GPL-2, when we did not have that right It also allows some Blackfin-specific assembly files to be under a BSD like license (for people to use them outside of Linux). Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-24 22:11:24 +08:00
* Copyright 2007-2009 Analog Devices Inc.
* Philippe Gerum <rpm@xenomai.org>
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
*
Blackfin: mass clean up of copyright/licensing info Bill Gatliff & David Brownell pointed out we were missing some copyrights, and licensing terms in some of the files in ./arch/blackfin, so this fixes things, and cleans them up. It also removes: - verbose GPL text(refer to the top level ./COPYING file) - file names (you are looking at the file) - bug url (it's in the ./MAINTAINERS file) - "or later" on GPL-2, when we did not have that right It also allows some Blackfin-specific assembly files to be under a BSD like license (for people to use them outside of Linux). Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-24 22:11:24 +08:00
* Licensed under the GPL-2 or later.
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
*/
#ifndef __ASM_BLACKFIN_SMP_H
#define __ASM_BLACKFIN_SMP_H
#include <linux/kernel.h>
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/cache.h>
#include <asm/blackfin.h>
#include <mach/smp.h>
#define raw_smp_processor_id() blackfin_core_id()
Blackfin arch: smp patch cleanup from LKML review 1. Use inline get_l1_... functions instead of macro 2. Fix compile issue about smp barrier functions Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
extern char coreb_trampoline_start, coreb_trampoline_end;
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
struct corelock_slot {
int lock;
};
Blackfin: implement nmi_watchdog for SMP on BF561 Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-01-20 18:56:24 +08:00
extern struct corelock_slot corelock;
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
Blackfin: rewrite resync_core_{i,d}cache() SMP logic to avoid per_cpu data This functions are implicitly called by core functions like cpu_relax(), and since those functions may be called early on before common code has initialized the per-cpu data area, we need to tweak the stats gathering. Now the statistics are maintained in common bss which makes these funcs safe to use as soon as the C runtime env is setup. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-02-01 14:07:50 +08:00
#ifdef __ARCH_SYNC_CORE_ICACHE
extern unsigned long icache_invld_count[NR_CPUS];
#endif
#ifdef __ARCH_SYNC_CORE_DCACHE
extern unsigned long dcache_invld_count[NR_CPUS];
#endif
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
void smp_icache_flush_range_others(unsigned long start,
unsigned long end);
Blackfin: SMP: add PM/CPU hotplug support Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-28 19:13:51 +08:00
#ifdef CONFIG_HOTPLUG_CPU
void coreb_sleep(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
void cpu_die(void);
void platform_cpu_die(void);
int __cpu_disable(void);
int __cpu_die(unsigned int cpu);
#endif
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07 23:14:39 +08:00
#endif /* !__ASM_BLACKFIN_SMP_H */