1#ifndef __ALPHA_PAL_H
2#define __ALPHA_PAL_H
3
4#include <uapi/asm/pal.h>
5
6#ifndef __ASSEMBLY__
7
8extern 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)				\
18extern 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)				\
30extern 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)			\
41extern 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)			\
53extern 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)		\
66extern 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
119static inline unsigned long
120qemu_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
133static inline unsigned long
134qemu_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
147static inline void
148qemu_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
159static inline void
160qemu_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
171static inline unsigned long
172qemu_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