From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/include/asm/fiq.h | 56 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 kernel/arch/arm/include/asm/fiq.h (limited to 'kernel/arch/arm/include/asm/fiq.h') diff --git a/kernel/arch/arm/include/asm/fiq.h b/kernel/arch/arm/include/asm/fiq.h new file mode 100644 index 000000000..d493d0b74 --- /dev/null +++ b/kernel/arch/arm/include/asm/fiq.h @@ -0,0 +1,56 @@ +/* + * arch/arm/include/asm/fiq.h + * + * Support for FIQ on ARM architectures. + * Written by Philip Blundell , 1998 + * Re-written by Russell King + * + * NOTE: The FIQ mode registers are not magically preserved across + * suspend/resume. + * + * Drivers which require these registers to be preserved across power + * management operations must implement appropriate suspend/resume handlers to + * save and restore them. + */ + +#ifndef __ASM_FIQ_H +#define __ASM_FIQ_H + +#include + +struct fiq_handler { + struct fiq_handler *next; + /* Name + */ + const char *name; + /* Called to ask driver to relinquish/ + * reacquire FIQ + * return zero to accept, or - + */ + int (*fiq_op)(void *, int relinquish); + /* data for the relinquish/reacquire functions + */ + void *dev_id; +}; + +extern int claim_fiq(struct fiq_handler *f); +extern void release_fiq(struct fiq_handler *f); +extern void set_fiq_handler(void *start, unsigned int length); +extern void enable_fiq(int fiq); +extern void disable_fiq(int fiq); + +/* helpers defined in fiqasm.S: */ +extern void __set_fiq_regs(unsigned long const *regs); +extern void __get_fiq_regs(unsigned long *regs); + +static inline void set_fiq_regs(struct pt_regs const *regs) +{ + __set_fiq_regs(®s->ARM_r8); +} + +static inline void get_fiq_regs(struct pt_regs *regs) +{ + __get_fiq_regs(®s->ARM_r8); +} + +#endif -- cgit 1.2.3-korg