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- #ifndef __ASM_ARC_PROCESSOR_H
- #define __ASM_ARC_PROCESSOR_H
- #ifndef __ASSEMBLY__
- #include <asm/ptrace.h>
- #ifdef CONFIG_ARC_FPU_SAVE_RESTORE
- struct arc_fpu {
- struct {
- unsigned int l, h;
- } aux_dpfp[2];
- };
- #endif
- #ifdef CONFIG_ARC_PLAT_EZNPS
- struct eznps_dp {
- unsigned int eflags;
- unsigned int gpa1;
- };
- #endif
- struct thread_struct {
- unsigned long ksp;
- unsigned long callee_reg;
- unsigned long fault_address;
- #ifdef CONFIG_ARC_FPU_SAVE_RESTORE
- struct arc_fpu fpu;
- #endif
- #ifdef CONFIG_ARC_PLAT_EZNPS
- struct eznps_dp dp;
- #endif
- };
- #define INIT_THREAD { \
- .ksp = sizeof(init_stack) + (unsigned long) init_stack, \
- }
- struct task_struct;
- #define task_pt_regs(p) \
- ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1)
- #define release_thread(thread) do { } while (0)
- #ifndef CONFIG_EZNPS_MTM_EXT
- #define cpu_relax() barrier()
- #else
- #define cpu_relax() \
- __asm__ __volatile__ (".word %0" : : "i"(CTOP_INST_SCHD_RW) : "memory")
- #endif
- #define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret)
- #define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp)
- #define TSK_K_ESP(tsk) (tsk->thread.ksp)
- #define TSK_K_REG(tsk, off) (*((unsigned long *)(TSK_K_ESP(tsk) + \
- sizeof(struct callee_regs) + off)))
- #define TSK_K_BLINK(tsk) TSK_K_REG(tsk, 4)
- #define TSK_K_FP(tsk) TSK_K_REG(tsk, 0)
- extern void start_thread(struct pt_regs * regs, unsigned long pc,
- unsigned long usp);
- extern unsigned int get_wchan(struct task_struct *p);
- #define current_text_addr() ({ __label__ _l; _l: &&_l; })
- #endif /* !__ASSEMBLY__ */
- #define TASK_SIZE 0x60000000
- #define VMALLOC_START (PAGE_OFFSET - (CONFIG_ARC_KVADDR_SIZE << 20))
- #define VMALLOC_SIZE ((CONFIG_ARC_KVADDR_SIZE << 20) - PGDIR_SIZE * 4)
- #define VMALLOC_END (VMALLOC_START + VMALLOC_SIZE)
- #define USER_KERNEL_GUTTER (VMALLOC_START - TASK_SIZE)
- #ifdef CONFIG_ARC_PLAT_EZNPS
- #define STACK_TOP 0x57e00000
- #else
- #define STACK_TOP TASK_SIZE
- #endif
- #define STACK_TOP_MAX STACK_TOP
- #define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
- #endif /* __ASM_ARC_PROCESSOR_H */
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