From 2ab402dfd65d15a4b25a8756272ababe3ef76884 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Fri, 18 Apr 2014 12:19:59 +0530 Subject: ARC: make start_thread() out-of-line Helps move out ISA specific bits from a arch exported header Signed-off-by: Vineet Gupta --- arch/arc/include/asm/processor.h | 29 ++++------------------------- 1 file changed, 4 insertions(+), 25 deletions(-) (limited to 'arch/arc/include') diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h index 15334ab66b56..d99f9b37cd15 100644 --- a/arch/arc/include/asm/processor.h +++ b/arch/arc/include/asm/processor.h @@ -18,7 +18,6 @@ #ifndef __ASSEMBLY__ -#include /* for STATUS_E1_MASK et all */ #include /* Arch specific stuff which needs to be saved per task. @@ -41,15 +40,13 @@ struct thread_struct { /* Forward declaration, a strange C thing */ struct task_struct; -/* - * Return saved PC of a blocked thread. - */ +/* Return saved PC of a blocked thread */ unsigned long thread_saved_pc(struct task_struct *t); #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1) -/* Free all resources held by a thread. */ +/* Free all resources held by a thread */ #define release_thread(thread) do { } while (0) /* Prepare to copy thread state - unlazy all lazy status */ @@ -82,26 +79,8 @@ unsigned long thread_saved_pc(struct task_struct *t); #define KSTK_BLINK(tsk) KSTK_REG(tsk, 4) #define KSTK_FP(tsk) KSTK_REG(tsk, 0) -/* - * Do necessary setup to start up a newly executed thread. - * - * E1,E2 so that Interrupts are enabled in user mode - * L set, so Loop inhibited to begin with - * lp_start and lp_end seeded with bogus non-zero values so to easily catch - * the ARC700 sr to lp_start hardware bug - */ -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); /* reads from user space */ \ - (_regs)->ret = (_pc); \ - /* Interrupts enabled in User Mode */ \ - (_regs)->status32 = STATUS_U_MASK | STATUS_L_MASK \ - | STATUS_E1_MASK | STATUS_E2_MASK; \ - (_regs)->sp = (_usp); \ - /* bogus seed values for debugging */ \ - (_regs)->lp_start = 0x10; \ - (_regs)->lp_end = 0x80; \ -} while (0) +extern void start_thread(struct pt_regs * regs, unsigned long pc, + unsigned long usp); extern unsigned int get_wchan(struct task_struct *p); -- cgit v1.2.3-59-g8ed1b