arch/alpha/include/asm/pal.h

   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 */