1 #ifndef __ALPHA_PAL_H 2 #define __ALPHA_PAL_H 3 4 #include <uapi/asm/pal.h> 5 6 #ifndef __ASSEMBLY__ 7 8 extern void halt(void) __attribute__((noreturn)); 9 #define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt)) 10 11 #define imb() \ 12 __asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory") 13 14 #define draina() \ 15 __asm__ __volatile__ ("call_pal %0 #draina" : : "i" (PAL_draina) : "memory") 16 17 #define __CALL_PAL_R0(NAME, TYPE) \ 18 extern inline TYPE NAME(void) \ 19 { \ 20 register TYPE __r0 __asm__("$0"); \ 21 __asm__ __volatile__( \ 22 "call_pal %1 # " #NAME \ 23 :"=r" (__r0) \ 24 :"i" (PAL_ ## NAME) \ 25 :"$1", "$16", "$22", "$23", "$24", "$25"); \ 26 return __r0; \ 27 } 28 29 #define __CALL_PAL_W1(NAME, TYPE0) \ 30 extern inline void NAME(TYPE0 arg0) \ 31 { \ 32 register TYPE0 __r16 __asm__("$16") = arg0; \ 33 __asm__ __volatile__( \ 34 "call_pal %1 # "#NAME \ 35 : "=r"(__r16) \ 36 : "i"(PAL_ ## NAME), "0"(__r16) \ 37 : "$1", "$22", "$23", "$24", "$25"); \ 38 } 39 40 #define __CALL_PAL_W2(NAME, TYPE0, TYPE1) \ 41 extern inline void NAME(TYPE0 arg0, TYPE1 arg1) \ 42 { \ 43 register TYPE0 __r16 __asm__("$16") = arg0; \ 44 register TYPE1 __r17 __asm__("$17") = arg1; \ 45 __asm__ __volatile__( \ 46 "call_pal %2 # "#NAME \ 47 : "=r"(__r16), "=r"(__r17) \ 48 : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \ 49 : "$1", "$22", "$23", "$24", "$25"); \ 50 } 51 52 #define __CALL_PAL_RW1(NAME, RTYPE, TYPE0) \ 53 extern inline RTYPE NAME(TYPE0 arg0) \ 54 { \ 55 register RTYPE __r0 __asm__("$0"); \ 56 register TYPE0 __r16 __asm__("$16") = arg0; \ 57 __asm__ __volatile__( \ 58 "call_pal %2 # "#NAME \ 59 : "=r"(__r16), "=r"(__r0) \ 60 : "i"(PAL_ ## NAME), "0"(__r16) \ 61 : "$1", "$22", "$23", "$24", "$25"); \ 62 return __r0; \ 63 } 64 65 #define __CALL_PAL_RW2(NAME, RTYPE, TYPE0, TYPE1) \ 66 extern inline RTYPE NAME(TYPE0 arg0, TYPE1 arg1) \ 67 { \ 68 register RTYPE __r0 __asm__("$0"); \ 69 register TYPE0 __r16 __asm__("$16") = arg0; \ 70 register TYPE1 __r17 __asm__("$17") = arg1; \ 71 __asm__ __volatile__( \ 72 "call_pal %3 # "#NAME \ 73 : "=r"(__r16), "=r"(__r17), "=r"(__r0) \ 74 : "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17) \ 75 : "$1", "$22", "$23", "$24", "$25"); \ 76 return __r0; \ 77 } 78 79 __CALL_PAL_W1(cflush, unsigned long); 80 __CALL_PAL_R0(rdmces, unsigned long); 81 __CALL_PAL_R0(rdps, unsigned long); 82 __CALL_PAL_R0(rdusp, unsigned long); 83 __CALL_PAL_RW1(swpipl, unsigned long, unsigned long); 84 __CALL_PAL_R0(whami, unsigned long); 85 __CALL_PAL_W2(wrent, void*, unsigned long); 86 __CALL_PAL_W1(wripir, unsigned long); 87 __CALL_PAL_W1(wrkgp, unsigned long); 88 __CALL_PAL_W1(wrmces, unsigned long); 89 __CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long); 90 __CALL_PAL_W1(wrusp, unsigned long); 91 __CALL_PAL_W1(wrvptptr, unsigned long); 92 __CALL_PAL_RW1(wtint, unsigned long, unsigned long); 93 94 /* 95 * TB routines.. 96 */ 97 #define __tbi(nr,arg,arg1...) \ 98 ({ \ 99 register unsigned long __r16 __asm__("$16") = (nr); \ 100 register unsigned long __r17 __asm__("$17"); arg; \ 101 __asm__ __volatile__( \ 102 "call_pal %3 #__tbi" \ 103 :"=r" (__r16),"=r" (__r17) \ 104 :"0" (__r16),"i" (PAL_tbi) ,##arg1 \ 105 :"$0", "$1", "$22", "$23", "$24", "$25"); \ 106 }) 107 108 #define tbi(x,y) __tbi(x,__r17=(y),"1" (__r17)) 109 #define tbisi(x) __tbi(1,__r17=(x),"1" (__r17)) 110 #define tbisd(x) __tbi(2,__r17=(x),"1" (__r17)) 111 #define tbis(x) __tbi(3,__r17=(x),"1" (__r17)) 112 #define tbiap() __tbi(-1, /* no second argument */) 113 #define tbia() __tbi(-2, /* no second argument */) 114 115 /* 116 * QEMU Cserv routines.. 117 */ 118 119 static inline unsigned long 120 qemu_get_walltime(void) 121 { 122 register unsigned long v0 __asm__("$0"); 123 register unsigned long a0 __asm__("$16") = 3; 124 125 asm("call_pal %2 # cserve get_time" 126 : "=r"(v0), "+r"(a0) 127 : "i"(PAL_cserve) 128 : "$17", "$18", "$19", "$20", "$21"); 129 130 return v0; 131 } 132 133 static inline unsigned long 134 qemu_get_alarm(void) 135 { 136 register unsigned long v0 __asm__("$0"); 137 register unsigned long a0 __asm__("$16") = 4; 138 139 asm("call_pal %2 # cserve get_alarm" 140 : "=r"(v0), "+r"(a0) 141 : "i"(PAL_cserve) 142 : "$17", "$18", "$19", "$20", "$21"); 143 144 return v0; 145 } 146 147 static inline void 148 qemu_set_alarm_rel(unsigned long expire) 149 { 150 register unsigned long a0 __asm__("$16") = 5; 151 register unsigned long a1 __asm__("$17") = expire; 152 153 asm volatile("call_pal %2 # cserve set_alarm_rel" 154 : "+r"(a0), "+r"(a1) 155 : "i"(PAL_cserve) 156 : "$0", "$18", "$19", "$20", "$21"); 157 } 158 159 static inline void 160 qemu_set_alarm_abs(unsigned long expire) 161 { 162 register unsigned long a0 __asm__("$16") = 6; 163 register unsigned long a1 __asm__("$17") = expire; 164 165 asm volatile("call_pal %2 # cserve set_alarm_abs" 166 : "+r"(a0), "+r"(a1) 167 : "i"(PAL_cserve) 168 : "$0", "$18", "$19", "$20", "$21"); 169 } 170 171 static inline unsigned long 172 qemu_get_vmtime(void) 173 { 174 register unsigned long v0 __asm__("$0"); 175 register unsigned long a0 __asm__("$16") = 7; 176 177 asm("call_pal %2 # cserve get_time" 178 : "=r"(v0), "+r"(a0) 179 : "i"(PAL_cserve) 180 : "$17", "$18", "$19", "$20", "$21"); 181 182 return v0; 183 } 184 185 #endif /* !__ASSEMBLY__ */ 186 #endif /* __ALPHA_PAL_H */ 187