1 #ifndef _PSERIES_PLPAR_WRAPPERS_H
2 #define _PSERIES_PLPAR_WRAPPERS_H
4 #include <asm/hvcall.h>
7 /* Get state of physical CPU from query_cpu_stopped */
8 int smp_query_cpu_stopped(unsigned int pcpu
);
10 #define QCSS_STOPPING 1
11 #define QCSS_NOT_STOPPED 2
12 #define QCSS_HARDWARE_ERROR -1
13 #define QCSS_HARDWARE_BUSY -2
15 static inline long poll_pending(void)
17 return plpar_hcall_norets(H_POLL_PENDING
);
20 static inline long cede_processor(void)
22 return plpar_hcall_norets(H_CEDE
);
25 static inline long vpa_call(unsigned long flags
, unsigned long cpu
,
28 /* flags are in bits 16-18 (counting from most significant bit) */
29 flags
= flags
<< (63 - 18);
31 return plpar_hcall_norets(H_REGISTER_VPA
, flags
, cpu
, vpa
);
34 static inline long unregister_vpa(unsigned long cpu
, unsigned long vpa
)
36 return vpa_call(0x5, cpu
, vpa
);
39 static inline long register_vpa(unsigned long cpu
, unsigned long vpa
)
41 return vpa_call(0x1, cpu
, vpa
);
44 static inline long unregister_slb_shadow(unsigned long cpu
, unsigned long vpa
)
46 return vpa_call(0x7, cpu
, vpa
);
49 static inline long register_slb_shadow(unsigned long cpu
, unsigned long vpa
)
51 return vpa_call(0x3, cpu
, vpa
);
54 static inline long unregister_dtl(unsigned long cpu
, unsigned long vpa
)
56 return vpa_call(0x6, cpu
, vpa
);
59 static inline long register_dtl(unsigned long cpu
, unsigned long vpa
)
61 return vpa_call(0x2, cpu
, vpa
);
64 static inline long plpar_page_set_loaned(unsigned long vpa
)
66 unsigned long cmo_page_sz
= cmo_get_page_size();
70 for (i
= 0; !rc
&& i
< PAGE_SIZE
; i
+= cmo_page_sz
)
71 rc
= plpar_hcall_norets(H_PAGE_INIT
, H_PAGE_SET_LOANED
, vpa
+ i
, 0);
73 for (i
-= cmo_page_sz
; rc
&& i
!= 0; i
-= cmo_page_sz
)
74 plpar_hcall_norets(H_PAGE_INIT
, H_PAGE_SET_ACTIVE
,
75 vpa
+ i
- cmo_page_sz
, 0);
80 static inline long plpar_page_set_active(unsigned long vpa
)
82 unsigned long cmo_page_sz
= cmo_get_page_size();
86 for (i
= 0; !rc
&& i
< PAGE_SIZE
; i
+= cmo_page_sz
)
87 rc
= plpar_hcall_norets(H_PAGE_INIT
, H_PAGE_SET_ACTIVE
, vpa
+ i
, 0);
89 for (i
-= cmo_page_sz
; rc
&& i
!= 0; i
-= cmo_page_sz
)
90 plpar_hcall_norets(H_PAGE_INIT
, H_PAGE_SET_LOANED
,
91 vpa
+ i
- cmo_page_sz
, 0);
96 extern void vpa_init(int cpu
);
98 static inline long plpar_pte_enter(unsigned long flags
,
99 unsigned long hpte_group
, unsigned long hpte_v
,
100 unsigned long hpte_r
, unsigned long *slot
)
103 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
105 rc
= plpar_hcall(H_ENTER
, retbuf
, flags
, hpte_group
, hpte_v
, hpte_r
);
112 static inline long plpar_pte_remove(unsigned long flags
, unsigned long ptex
,
113 unsigned long avpn
, unsigned long *old_pteh_ret
,
114 unsigned long *old_ptel_ret
)
117 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
119 rc
= plpar_hcall(H_REMOVE
, retbuf
, flags
, ptex
, avpn
);
121 *old_pteh_ret
= retbuf
[0];
122 *old_ptel_ret
= retbuf
[1];
127 /* plpar_pte_remove_raw can be called in real mode. It calls plpar_hcall_raw */
128 static inline long plpar_pte_remove_raw(unsigned long flags
, unsigned long ptex
,
129 unsigned long avpn
, unsigned long *old_pteh_ret
,
130 unsigned long *old_ptel_ret
)
133 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
135 rc
= plpar_hcall_raw(H_REMOVE
, retbuf
, flags
, ptex
, avpn
);
137 *old_pteh_ret
= retbuf
[0];
138 *old_ptel_ret
= retbuf
[1];
143 static inline long plpar_pte_read(unsigned long flags
, unsigned long ptex
,
144 unsigned long *old_pteh_ret
, unsigned long *old_ptel_ret
)
147 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
149 rc
= plpar_hcall(H_READ
, retbuf
, flags
, ptex
);
151 *old_pteh_ret
= retbuf
[0];
152 *old_ptel_ret
= retbuf
[1];
157 /* plpar_pte_read_raw can be called in real mode. It calls plpar_hcall_raw */
158 static inline long plpar_pte_read_raw(unsigned long flags
, unsigned long ptex
,
159 unsigned long *old_pteh_ret
, unsigned long *old_ptel_ret
)
162 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
164 rc
= plpar_hcall_raw(H_READ
, retbuf
, flags
, ptex
);
166 *old_pteh_ret
= retbuf
[0];
167 *old_ptel_ret
= retbuf
[1];
173 * plpar_pte_read_4_raw can be called in real mode.
174 * ptes must be 8*sizeof(unsigned long)
176 static inline long plpar_pte_read_4_raw(unsigned long flags
, unsigned long ptex
,
181 unsigned long retbuf
[PLPAR_HCALL9_BUFSIZE
];
183 rc
= plpar_hcall9_raw(H_READ
, retbuf
, flags
| H_READ_4
, ptex
);
185 memcpy(ptes
, retbuf
, 8*sizeof(unsigned long));
190 static inline long plpar_pte_protect(unsigned long flags
, unsigned long ptex
,
193 return plpar_hcall_norets(H_PROTECT
, flags
, ptex
, avpn
);
196 static inline long plpar_tce_get(unsigned long liobn
, unsigned long ioba
,
197 unsigned long *tce_ret
)
200 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
202 rc
= plpar_hcall(H_GET_TCE
, retbuf
, liobn
, ioba
);
204 *tce_ret
= retbuf
[0];
209 static inline long plpar_tce_put(unsigned long liobn
, unsigned long ioba
,
210 unsigned long tceval
)
212 return plpar_hcall_norets(H_PUT_TCE
, liobn
, ioba
, tceval
);
215 static inline long plpar_tce_put_indirect(unsigned long liobn
,
216 unsigned long ioba
, unsigned long page
, unsigned long count
)
218 return plpar_hcall_norets(H_PUT_TCE_INDIRECT
, liobn
, ioba
, page
, count
);
221 static inline long plpar_tce_stuff(unsigned long liobn
, unsigned long ioba
,
222 unsigned long tceval
, unsigned long count
)
224 return plpar_hcall_norets(H_STUFF_TCE
, liobn
, ioba
, tceval
, count
);
227 static inline long plpar_get_term_char(unsigned long termno
,
228 unsigned long *len_ret
, char *buf_ret
)
231 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
232 unsigned long *lbuf
= (unsigned long *)buf_ret
; /* TODO: alignment? */
234 rc
= plpar_hcall(H_GET_TERM_CHAR
, retbuf
, termno
);
236 *len_ret
= retbuf
[0];
243 static inline long plpar_put_term_char(unsigned long termno
, unsigned long len
,
246 unsigned long *lbuf
= (unsigned long *)buffer
; /* TODO: alignment? */
247 return plpar_hcall_norets(H_PUT_TERM_CHAR
, termno
, len
, lbuf
[0],
251 static inline long plpar_eoi(unsigned long xirr
)
253 return plpar_hcall_norets(H_EOI
, xirr
);
256 static inline long plpar_cppr(unsigned long cppr
)
258 return plpar_hcall_norets(H_CPPR
, cppr
);
261 static inline long plpar_ipi(unsigned long servernum
, unsigned long mfrr
)
263 return plpar_hcall_norets(H_IPI
, servernum
, mfrr
);
266 static inline long plpar_xirr(unsigned long *xirr_ret
)
269 unsigned long retbuf
[PLPAR_HCALL_BUFSIZE
];
271 rc
= plpar_hcall(H_XIRR
, retbuf
);
273 *xirr_ret
= retbuf
[0];
278 #endif /* _PSERIES_PLPAR_WRAPPERS_H */