base/include/asm-arm/rtai_sched.h File Reference

Include dependency graph for rtai_sched.h:

Go to the source code of this file.

Defines
#define	I_BIT   PSR_I_BIT
#define	rt_exchange_tasks(old_task, new_task)
#define	init_arch_stack()
#define	DEFINE_LINUX_CR0
#define	DEFINE_LINUX_SMP_CR0
#define	init_fp_env()
#define	init_task_fpenv(task)   do { init_fpenv((task)->fpu_reg); } while(0)
#define	DO_TIMER_PROPER_OP()
Functions
unsigned long	current_domain_access_control (void)
void *	get_stack_pointer (void)

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Define Documentation

#define DEFINE_LINUX_CR0

Definition at line 145 of file rtai_sched.h.

#define DEFINE_LINUX_SMP_CR0

Definition at line 146 of file rtai_sched.h.

 

#define DO_TIMER_PROPER_OP

(

)

Value:

do {                    \
    rtai_timer_irq_ack();       \
} while (0)

Definition at line 171 of file rtai_sched.h.

#define I_BIT   PSR_I_BIT

Definition at line 52 of file rtai_sched.h.

 

#define init_arch_stack

(

)

Value:

do {                                \
    task->stack -= 13; /* make room on stack */         \
    task->stack[12] = (int)rt_startup; /* entry point */        \
    task->stack[ 3] = SVC_MODE;    /* cpsr */           \
    task->stack[ 2] = (int)current_domain_access_control();     \
    task->stack[ 1] = (int)data;       /* arg 2 of rt_startup() */  \
    task->stack[ 0] = (int)rt_thread;  /* arg 1 "  " */     \
    } while (0)

Definition at line 135 of file rtai_sched.h.

 

#define init_fp_env

(

)

Definition at line 154 of file rtai_sched.h.

#define init_task_fpenv

(

task

)

do { init_fpenv((task)->fpu_reg); } while(0)

Definition at line 157 of file rtai_sched.h.

#define rt_exchange_tasks	(	old_task,
		new_task		)

Value:

asm volatile( \
    "mrc    p15, 0, r2, c3, c0\n\t"     /* get current domain_access_control */ \
    "adr    lr, 1f\n\t"         /* get address of resume point */ \
    "mrs    r3, cpsr\n\t"           /* get current cpsr */ \
    "ldr    ip, [%[oldp]]\n\t"      /* get pointer to old task */ \
    "stmfd  sp!, {r0 - fp, lr}\n\t"     /* push registers on stack */ \
    "str    %[new], [%[oldp]]\n\t"      /* *oldp = new */ \
    "str    sp, [ip]\n\t"           /* save current stack-pointer to old task */ \
    "ldr    sp, [%[new]]\n\t"       /* get stack-pointer of new task */ \
    "ldmfd  sp!, {r0-r3}\n\t"       /* pop new tasks' r0, r1, cpsr & d.a.c from stack */ \
    "mcr    p15, 0, r2, c3, c0\n\t"     /* restore previous domain_access_control */ \
    "msr    cpsr_c, %[psr]\n\t"     /* disable hw-irqs */ \
    "msr    spsr, r3\n\t"           /* set spsr to previous cpsr */ \
    "ldmfd  sp!, {r4 - fp, pc}^\n\t"    /* pop registers, pc = resume point, cpsr = spsr */ \
    "1:"                    /* resume point (except for startup) */ \
    : /* output  */ /* none */ \
    : /* input   */ [oldp] "r" (&old_task), \
            [new]  "r" (new_task), \
            [psr]  "i" (SVC_MODE|I_BIT) \
    : /* clobber */ "lr", "ip", "r2", "r3", "memory" \
    )

Definition at line 91 of file rtai_sched.h.

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Function Documentation

unsigned long current_domain_access_control

(

void

)

[inline]

Definition at line 115 of file rtai_sched.h.

void* get_stack_pointer

(

void

)

[inline]

Definition at line 160 of file rtai_sched.h.

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