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212bebb4 DD |
1 | #ifndef _ASM_POWERPC_PLPAR_WRAPPERS_H |
2 | #define _ASM_POWERPC_PLPAR_WRAPPERS_H | |
a1218720 | 3 | |
614f15b4 | 4 | #include <linux/string.h> |
fb912568 | 5 | #include <linux/irqflags.h> |
614f15b4 | 6 | |
a1218720 | 7 | #include <asm/hvcall.h> |
614f15b4 | 8 | #include <asm/paca.h> |
370e4587 | 9 | #include <asm/page.h> |
a1218720 | 10 | |
f8b67691 MN |
11 | /* Get state of physical CPU from query_cpu_stopped */ |
12 | int smp_query_cpu_stopped(unsigned int pcpu); | |
13 | #define QCSS_STOPPED 0 | |
14 | #define QCSS_STOPPING 1 | |
15 | #define QCSS_NOT_STOPPED 2 | |
16 | #define QCSS_HARDWARE_ERROR -1 | |
17 | #define QCSS_HARDWARE_BUSY -2 | |
18 | ||
a1218720 ME |
19 | static inline long poll_pending(void) |
20 | { | |
b9377ffc | 21 | return plpar_hcall_norets(H_POLL_PENDING); |
a1218720 ME |
22 | } |
23 | ||
69ddb57c GS |
24 | static inline u8 get_cede_latency_hint(void) |
25 | { | |
cf8a056a | 26 | return get_lppaca()->cede_latency_hint; |
69ddb57c GS |
27 | } |
28 | ||
29 | static inline void set_cede_latency_hint(u8 latency_hint) | |
30 | { | |
cf8a056a | 31 | get_lppaca()->cede_latency_hint = latency_hint; |
69ddb57c GS |
32 | } |
33 | ||
a1218720 ME |
34 | static inline long cede_processor(void) |
35 | { | |
b9377ffc | 36 | return plpar_hcall_norets(H_CEDE); |
a1218720 ME |
37 | } |
38 | ||
69ddb57c GS |
39 | static inline long extended_cede_processor(unsigned long latency_hint) |
40 | { | |
41 | long rc; | |
42 | u8 old_latency_hint = get_cede_latency_hint(); | |
43 | ||
44 | set_cede_latency_hint(latency_hint); | |
fb912568 | 45 | |
69ddb57c | 46 | rc = cede_processor(); |
fb912568 LZ |
47 | #ifdef CONFIG_TRACE_IRQFLAGS |
48 | /* Ensure that H_CEDE returns with IRQs on */ | |
49 | if (WARN_ON(!(mfmsr() & MSR_EE))) | |
50 | __hard_irq_enable(); | |
51 | #endif | |
52 | ||
69ddb57c GS |
53 | set_cede_latency_hint(old_latency_hint); |
54 | ||
55 | return rc; | |
56 | } | |
57 | ||
40765d2b | 58 | static inline long vpa_call(unsigned long flags, unsigned long cpu, |
a1218720 ME |
59 | unsigned long vpa) |
60 | { | |
bb18b3a4 | 61 | flags = flags << H_VPA_FUNC_SHIFT; |
40765d2b ME |
62 | |
63 | return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa); | |
64 | } | |
65 | ||
598c8231 | 66 | static inline long unregister_vpa(unsigned long cpu) |
40765d2b | 67 | { |
bb18b3a4 | 68 | return vpa_call(H_VPA_DEREG_VPA, cpu, 0); |
40765d2b ME |
69 | } |
70 | ||
71 | static inline long register_vpa(unsigned long cpu, unsigned long vpa) | |
72 | { | |
bb18b3a4 | 73 | return vpa_call(H_VPA_REG_VPA, cpu, vpa); |
a1218720 ME |
74 | } |
75 | ||
598c8231 | 76 | static inline long unregister_slb_shadow(unsigned long cpu) |
2f6093c8 | 77 | { |
bb18b3a4 | 78 | return vpa_call(H_VPA_DEREG_SLB, cpu, 0); |
2f6093c8 MN |
79 | } |
80 | ||
81 | static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) | |
82 | { | |
bb18b3a4 | 83 | return vpa_call(H_VPA_REG_SLB, cpu, vpa); |
2f6093c8 MN |
84 | } |
85 | ||
b1301797 | 86 | static inline long unregister_dtl(unsigned long cpu) |
fc59a3fc | 87 | { |
bb18b3a4 | 88 | return vpa_call(H_VPA_DEREG_DTL, cpu, 0); |
fc59a3fc JK |
89 | } |
90 | ||
91 | static inline long register_dtl(unsigned long cpu, unsigned long vpa) | |
92 | { | |
bb18b3a4 | 93 | return vpa_call(H_VPA_REG_DTL, cpu, vpa); |
fc59a3fc JK |
94 | } |
95 | ||
40765d2b | 96 | extern void vpa_init(int cpu); |
a1218720 | 97 | |
b9377ffc AB |
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) | |
101 | { | |
102 | long rc; | |
103 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
104 | ||
105 | rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r); | |
106 | ||
107 | *slot = retbuf[0]; | |
108 | ||
109 | return rc; | |
110 | } | |
111 | ||
a1218720 ME |
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) | |
115 | { | |
b9377ffc AB |
116 | long rc; |
117 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
118 | ||
119 | rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn); | |
120 | ||
121 | *old_pteh_ret = retbuf[0]; | |
122 | *old_ptel_ret = retbuf[1]; | |
123 | ||
124 | return rc; | |
a1218720 ME |
125 | } |
126 | ||
b4aea36b MK |
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) | |
131 | { | |
132 | long rc; | |
133 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
134 | ||
135 | rc = plpar_hcall_raw(H_REMOVE, retbuf, flags, ptex, avpn); | |
136 | ||
137 | *old_pteh_ret = retbuf[0]; | |
138 | *old_ptel_ret = retbuf[1]; | |
139 | ||
140 | return rc; | |
141 | } | |
142 | ||
a1218720 ME |
143 | static inline long plpar_pte_read(unsigned long flags, unsigned long ptex, |
144 | unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) | |
145 | { | |
b9377ffc AB |
146 | long rc; |
147 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
148 | ||
149 | rc = plpar_hcall(H_READ, retbuf, flags, ptex); | |
150 | ||
151 | *old_pteh_ret = retbuf[0]; | |
152 | *old_ptel_ret = retbuf[1]; | |
153 | ||
154 | return rc; | |
a1218720 ME |
155 | } |
156 | ||
b7abc5c5 SS |
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) | |
160 | { | |
161 | long rc; | |
162 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
163 | ||
164 | rc = plpar_hcall_raw(H_READ, retbuf, flags, ptex); | |
165 | ||
166 | *old_pteh_ret = retbuf[0]; | |
167 | *old_ptel_ret = retbuf[1]; | |
168 | ||
169 | return rc; | |
170 | } | |
171 | ||
4ad90c86 AK |
172 | /* |
173 | * ptes must be 8*sizeof(unsigned long) | |
174 | */ | |
175 | static inline long plpar_pte_read_4(unsigned long flags, unsigned long ptex, | |
176 | unsigned long *ptes) | |
177 | ||
178 | { | |
179 | long rc; | |
180 | unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; | |
181 | ||
182 | rc = plpar_hcall9(H_READ, retbuf, flags | H_READ_4, ptex); | |
183 | ||
184 | memcpy(ptes, retbuf, 8*sizeof(unsigned long)); | |
185 | ||
186 | return rc; | |
187 | } | |
188 | ||
f90ece28 MN |
189 | /* |
190 | * plpar_pte_read_4_raw can be called in real mode. | |
191 | * ptes must be 8*sizeof(unsigned long) | |
192 | */ | |
193 | static inline long plpar_pte_read_4_raw(unsigned long flags, unsigned long ptex, | |
194 | unsigned long *ptes) | |
195 | ||
196 | { | |
197 | long rc; | |
198 | unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; | |
199 | ||
200 | rc = plpar_hcall9_raw(H_READ, retbuf, flags | H_READ_4, ptex); | |
201 | ||
202 | memcpy(ptes, retbuf, 8*sizeof(unsigned long)); | |
203 | ||
204 | return rc; | |
205 | } | |
206 | ||
a1218720 ME |
207 | static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, |
208 | unsigned long avpn) | |
209 | { | |
210 | return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn); | |
211 | } | |
212 | ||
64b40ffb DG |
213 | static inline long plpar_resize_hpt_prepare(unsigned long flags, |
214 | unsigned long shift) | |
215 | { | |
216 | return plpar_hcall_norets(H_RESIZE_HPT_PREPARE, flags, shift); | |
217 | } | |
218 | ||
219 | static inline long plpar_resize_hpt_commit(unsigned long flags, | |
220 | unsigned long shift) | |
221 | { | |
222 | return plpar_hcall_norets(H_RESIZE_HPT_COMMIT, flags, shift); | |
223 | } | |
224 | ||
a1218720 ME |
225 | static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba, |
226 | unsigned long *tce_ret) | |
227 | { | |
b9377ffc AB |
228 | long rc; |
229 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; | |
230 | ||
231 | rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba); | |
232 | ||
233 | *tce_ret = retbuf[0]; | |
234 | ||
235 | return rc; | |
a1218720 ME |
236 | } |
237 | ||
238 | static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba, | |
239 | unsigned long tceval) | |
240 | { | |
241 | return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval); | |
242 | } | |
243 | ||
244 | static inline long plpar_tce_put_indirect(unsigned long liobn, | |
245 | unsigned long ioba, unsigned long page, unsigned long count) | |
246 | { | |
247 | return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count); | |
248 | } | |
249 | ||
250 | static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba, | |
251 | unsigned long tceval, unsigned long count) | |
252 | { | |
253 | return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count); | |
254 | } | |
255 | ||
d8f48ecc IM |
256 | /* Set various resource mode parameters */ |
257 | static inline long plpar_set_mode(unsigned long mflags, unsigned long resource, | |
258 | unsigned long value1, unsigned long value2) | |
259 | { | |
260 | return plpar_hcall_norets(H_SET_MODE, mflags, resource, value1, value2); | |
261 | } | |
798042da IM |
262 | |
263 | /* | |
264 | * Enable relocation on exceptions on this partition | |
265 | * | |
266 | * Note: this call has a partition wide scope and can take a while to complete. | |
267 | * If it returns H_LONG_BUSY_* it should be retried periodically until it | |
268 | * returns H_SUCCESS. | |
269 | */ | |
270 | static inline long enable_reloc_on_exceptions(void) | |
271 | { | |
272 | /* mflags = 3: Exceptions at 0xC000000000004000 */ | |
60666de2 | 273 | return plpar_set_mode(3, H_SET_MODE_RESOURCE_ADDR_TRANS_MODE, 0, 0); |
798042da IM |
274 | } |
275 | ||
276 | /* | |
277 | * Disable relocation on exceptions on this partition | |
278 | * | |
279 | * Note: this call has a partition wide scope and can take a while to complete. | |
280 | * If it returns H_LONG_BUSY_* it should be retried periodically until it | |
281 | * returns H_SUCCESS. | |
282 | */ | |
283 | static inline long disable_reloc_on_exceptions(void) { | |
60666de2 | 284 | return plpar_set_mode(0, H_SET_MODE_RESOURCE_ADDR_TRANS_MODE, 0, 0); |
798042da IM |
285 | } |
286 | ||
e844b1ee AB |
287 | /* |
288 | * Take exceptions in big endian mode on this partition | |
289 | * | |
290 | * Note: this call has a partition wide scope and can take a while to complete. | |
291 | * If it returns H_LONG_BUSY_* it should be retried periodically until it | |
292 | * returns H_SUCCESS. | |
293 | */ | |
294 | static inline long enable_big_endian_exceptions(void) | |
295 | { | |
296 | /* mflags = 0: big endian exceptions */ | |
60666de2 | 297 | return plpar_set_mode(0, H_SET_MODE_RESOURCE_LE, 0, 0); |
e844b1ee AB |
298 | } |
299 | ||
300 | /* | |
301 | * Take exceptions in little endian mode on this partition | |
302 | * | |
303 | * Note: this call has a partition wide scope and can take a while to complete. | |
304 | * If it returns H_LONG_BUSY_* it should be retried periodically until it | |
305 | * returns H_SUCCESS. | |
306 | */ | |
307 | static inline long enable_little_endian_exceptions(void) | |
308 | { | |
309 | /* mflags = 1: little endian exceptions */ | |
60666de2 | 310 | return plpar_set_mode(1, H_SET_MODE_RESOURCE_LE, 0, 0); |
e844b1ee AB |
311 | } |
312 | ||
376a8646 IM |
313 | static inline long plapr_set_ciabr(unsigned long ciabr) |
314 | { | |
60666de2 | 315 | return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_CIABR, ciabr, 0); |
376a8646 IM |
316 | } |
317 | ||
318 | static inline long plapr_set_watchpoint0(unsigned long dawr0, unsigned long dawrx0) | |
319 | { | |
60666de2 | 320 | return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR, dawr0, dawrx0); |
376a8646 IM |
321 | } |
322 | ||
53ce2996 NP |
323 | static inline long plapr_signal_sys_reset(long cpu) |
324 | { | |
325 | return plpar_hcall_norets(H_SIGNAL_SYS_RESET, cpu); | |
326 | } | |
327 | ||
212bebb4 | 328 | #endif /* _ASM_POWERPC_PLPAR_WRAPPERS_H */ |