1 #ifndef _PSERIES_PLPAR_WRAPPERS_H
2 #define _PSERIES_PLPAR_WRAPPERS_H
4 #include <asm/hvcall.h>
6 static inline long poll_pending(void)
8 return plpar_hcall_norets(H_POLL_PENDING
);
11 static inline long prod_processor(void)
13 return plpar_hcall_norets(H_PROD
);
16 static inline long cede_processor(void)
18 return plpar_hcall_norets(H_CEDE
);
21 static inline long vpa_call(unsigned long flags
, unsigned long cpu
,
24 /* flags are in bits 16-18 (counting from most significant bit) */
25 flags
= flags
<< (63 - 18);
27 return plpar_hcall_norets(H_REGISTER_VPA
, flags
, cpu
, vpa
);
30 static inline long unregister_vpa(unsigned long cpu
, unsigned long vpa
)
32 return vpa_call(0x5, cpu
, vpa
);
35 static inline long register_vpa(unsigned long cpu
, unsigned long vpa
)
37 return vpa_call(0x1, cpu
, vpa
);
40 extern void vpa_init(int cpu
);
42 static inline long plpar_pte_enter(unsigned long flags
,
43 unsigned long hpte_group
, unsigned long hpte_v
,
44 unsigned long hpte_r
, unsigned long *slot
)
47 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
49 rc
= plpar_hcall(H_ENTER
, retbuf
, flags
, hpte_group
, hpte_v
, hpte_r
);
56 static inline long plpar_pte_remove(unsigned long flags
, unsigned long ptex
,
57 unsigned long avpn
, unsigned long *old_pteh_ret
,
58 unsigned long *old_ptel_ret
)
61 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
63 rc
= plpar_hcall(H_REMOVE
, retbuf
, flags
, ptex
, avpn
);
65 *old_pteh_ret
= retbuf
[0];
66 *old_ptel_ret
= retbuf
[1];
71 static inline long plpar_pte_read(unsigned long flags
, unsigned long ptex
,
72 unsigned long *old_pteh_ret
, unsigned long *old_ptel_ret
)
75 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
77 rc
= plpar_hcall(H_READ
, retbuf
, flags
, ptex
);
79 *old_pteh_ret
= retbuf
[0];
80 *old_ptel_ret
= retbuf
[1];
85 static inline long plpar_pte_protect(unsigned long flags
, unsigned long ptex
,
88 return plpar_hcall_norets(H_PROTECT
, flags
, ptex
, avpn
);
91 static inline long plpar_tce_get(unsigned long liobn
, unsigned long ioba
,
92 unsigned long *tce_ret
)
95 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
97 rc
= plpar_hcall(H_GET_TCE
, retbuf
, liobn
, ioba
);
104 static inline long plpar_tce_put(unsigned long liobn
, unsigned long ioba
,
105 unsigned long tceval
)
107 return plpar_hcall_norets(H_PUT_TCE
, liobn
, ioba
, tceval
);
110 static inline long plpar_tce_put_indirect(unsigned long liobn
,
111 unsigned long ioba
, unsigned long page
, unsigned long count
)
113 return plpar_hcall_norets(H_PUT_TCE_INDIRECT
, liobn
, ioba
, page
, count
);
116 static inline long plpar_tce_stuff(unsigned long liobn
, unsigned long ioba
,
117 unsigned long tceval
, unsigned long count
)
119 return plpar_hcall_norets(H_STUFF_TCE
, liobn
, ioba
, tceval
, count
);
122 static inline long plpar_get_term_char(unsigned long termno
,
123 unsigned long *len_ret
, char *buf_ret
)
126 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
127 unsigned long *lbuf
= (unsigned long *)buf_ret
; /* TODO: alignment? */
129 rc
= plpar_hcall(H_GET_TERM_CHAR
, retbuf
, termno
);
131 *len_ret
= retbuf
[0];
138 static inline long plpar_put_term_char(unsigned long termno
, unsigned long len
,
141 unsigned long *lbuf
= (unsigned long *)buffer
; /* TODO: alignment? */
142 return plpar_hcall_norets(H_PUT_TERM_CHAR
, termno
, len
, lbuf
[0],
146 static inline long plpar_eoi(unsigned long xirr
)
148 return plpar_hcall_norets(H_EOI
, xirr
);
151 static inline long plpar_cppr(unsigned long cppr
)
153 return plpar_hcall_norets(H_CPPR
, cppr
);
156 static inline long plpar_ipi(unsigned long servernum
, unsigned long mfrr
)
158 return plpar_hcall_norets(H_IPI
, servernum
, mfrr
);
161 static inline long plpar_xirr(unsigned long *xirr_ret
)
164 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
166 rc
= plpar_hcall(H_XIRR
, retbuf
);
168 *xirr_ret
= retbuf
[0];
173 #endif /* _PSERIES_PLPAR_WRAPPERS_H */