1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_SH_SYSTEM_H 13 #define __ASM_SH_SYSTEM_H 14 15 #include <linux/irqflags.h> 16 #include <linux/compiler.h> 17 #include <linux/linkage.h> 18 #include <asm/types.h> 19 #include <asm/ptrace.h> 20 21 #define AT_VECTOR_SIZE_ARCH 5 22 23 #define __icbi() { unsigned long __addr; __addr = 0xa8000000; __asm__ __volatile__( "icbi %0\n\t" : : "m" (__m(__addr))); } 24 25 #define mb() __asm__ __volatile__ ("synco": : :"memory") 26 #define rmb() mb() 27 #define wmb() __asm__ __volatile__ ("synco": : :"memory") 28 #define ctrl_barrier() __icbi() 29 #define read_barrier_depends() do { } while(0) 30 31 #define smp_mb() barrier() 32 #define smp_rmb() barrier() 33 #define smp_wmb() barrier() 34 #define smp_read_barrier_depends() do { } while(0) 35 36 #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) 37 38 #include <asm/cmpxchg-irq.h> 39 40 #define __xchg(ptr, x, size) ({ unsigned long __xchg__res; volatile void *__xchg_ptr = (ptr); switch (size) { case 4: __xchg__res = xchg_u32(__xchg_ptr, x); break; case 1: __xchg__res = xchg_u8(__xchg_ptr, x); break; default: __xchg_called_with_bad_pointer(); __xchg__res = x; break; } __xchg__res; }) 41 42 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr)))) 43 44 #define __HAVE_ARCH_CMPXCHG 1 45 46 #define cmpxchg(ptr,o,n) ({ __typeof__(*(ptr)) _o_ = (o); __typeof__(*(ptr)) _n_ = (n); (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr))); }) 47 48 #define instruction_size(insn) (2) 49 50 #define BUILD_TRAP_HANDLER(name) asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs __regs) 51 52 #define TRAP_HANDLER_DECL struct pt_regs *regs = RELOC_HIDE(&__regs, 0); unsigned int vec = regs->tra; (void)vec; 53 54 #define arch_align_stack(x) (x) 55 56 struct mem_access { 57 unsigned long (*from)(void *dst, const void *src, unsigned long cnt); 58 unsigned long (*to)(void *dst, const void *src, unsigned long cnt); 59 }; 60 61 #include "system_32.h" 62 63 #endif 64
