Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 1 | #ifndef _PSERIES_PLPAR_WRAPPERS_H |
| 2 | #define _PSERIES_PLPAR_WRAPPERS_H |
| 3 | |
| 4 | #include <asm/hvcall.h> |
Brian King | 370e458 | 2008-08-16 05:09:33 +1000 | [diff] [blame] | 5 | #include <asm/page.h> |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 6 | |
Michael Neuling | f8b6769 | 2010-04-28 13:39:41 +0000 | [diff] [blame] | 7 | /* Get state of physical CPU from query_cpu_stopped */ |
| 8 | int smp_query_cpu_stopped(unsigned int pcpu); |
| 9 | #define QCSS_STOPPED 0 |
| 10 | #define QCSS_STOPPING 1 |
| 11 | #define QCSS_NOT_STOPPED 2 |
| 12 | #define QCSS_HARDWARE_ERROR -1 |
| 13 | #define QCSS_HARDWARE_BUSY -2 |
| 14 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 15 | static inline long poll_pending(void) |
| 16 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 17 | return plpar_hcall_norets(H_POLL_PENDING); |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 18 | } |
| 19 | |
Gautham R Shenoy | 69ddb57 | 2009-10-29 19:22:48 +0000 | [diff] [blame] | 20 | static inline u8 get_cede_latency_hint(void) |
| 21 | { |
| 22 | return get_lppaca()->gpr5_dword.fields.cede_latency_hint; |
| 23 | } |
| 24 | |
| 25 | static inline void set_cede_latency_hint(u8 latency_hint) |
| 26 | { |
| 27 | get_lppaca()->gpr5_dword.fields.cede_latency_hint = latency_hint; |
| 28 | } |
| 29 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 30 | static inline long cede_processor(void) |
| 31 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 32 | return plpar_hcall_norets(H_CEDE); |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 33 | } |
| 34 | |
Gautham R Shenoy | 69ddb57 | 2009-10-29 19:22:48 +0000 | [diff] [blame] | 35 | static inline long extended_cede_processor(unsigned long latency_hint) |
| 36 | { |
| 37 | long rc; |
| 38 | u8 old_latency_hint = get_cede_latency_hint(); |
| 39 | |
| 40 | set_cede_latency_hint(latency_hint); |
| 41 | rc = cede_processor(); |
| 42 | set_cede_latency_hint(old_latency_hint); |
| 43 | |
| 44 | return rc; |
| 45 | } |
| 46 | |
Michael Ellerman | 40765d2 | 2005-11-03 19:34:38 +1100 | [diff] [blame] | 47 | static inline long vpa_call(unsigned long flags, unsigned long cpu, |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 48 | unsigned long vpa) |
| 49 | { |
Michael Ellerman | 40765d2 | 2005-11-03 19:34:38 +1100 | [diff] [blame] | 50 | /* flags are in bits 16-18 (counting from most significant bit) */ |
| 51 | flags = flags << (63 - 18); |
| 52 | |
| 53 | return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa); |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 54 | } |
| 55 | |
Michael Ellerman | 40765d2 | 2005-11-03 19:34:38 +1100 | [diff] [blame] | 56 | static inline long unregister_vpa(unsigned long cpu, unsigned long vpa) |
| 57 | { |
| 58 | return vpa_call(0x5, cpu, vpa); |
| 59 | } |
| 60 | |
| 61 | static inline long register_vpa(unsigned long cpu, unsigned long vpa) |
| 62 | { |
| 63 | return vpa_call(0x1, cpu, vpa); |
| 64 | } |
| 65 | |
Michael Neuling | 2f6093c | 2006-08-07 16:19:19 +1000 | [diff] [blame] | 66 | static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa) |
| 67 | { |
| 68 | return vpa_call(0x7, cpu, vpa); |
| 69 | } |
| 70 | |
| 71 | static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) |
| 72 | { |
| 73 | return vpa_call(0x3, cpu, vpa); |
| 74 | } |
| 75 | |
Jeremy Kerr | fc59a3f | 2009-03-11 17:55:52 +0000 | [diff] [blame] | 76 | static inline long unregister_dtl(unsigned long cpu, unsigned long vpa) |
| 77 | { |
| 78 | return vpa_call(0x6, cpu, vpa); |
| 79 | } |
| 80 | |
| 81 | static inline long register_dtl(unsigned long cpu, unsigned long vpa) |
| 82 | { |
| 83 | return vpa_call(0x2, cpu, vpa); |
| 84 | } |
| 85 | |
Brian King | 86630a3 | 2008-07-24 04:29:16 +1000 | [diff] [blame] | 86 | static inline long plpar_page_set_loaned(unsigned long vpa) |
| 87 | { |
Brian King | 370e458 | 2008-08-16 05:09:33 +1000 | [diff] [blame] | 88 | unsigned long cmo_page_sz = cmo_get_page_size(); |
| 89 | long rc = 0; |
| 90 | int i; |
| 91 | |
| 92 | for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz) |
| 93 | rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa + i, 0); |
| 94 | |
| 95 | for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz) |
| 96 | plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, |
| 97 | vpa + i - cmo_page_sz, 0); |
| 98 | |
| 99 | return rc; |
Brian King | 86630a3 | 2008-07-24 04:29:16 +1000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | static inline long plpar_page_set_active(unsigned long vpa) |
| 103 | { |
Brian King | 370e458 | 2008-08-16 05:09:33 +1000 | [diff] [blame] | 104 | unsigned long cmo_page_sz = cmo_get_page_size(); |
| 105 | long rc = 0; |
| 106 | int i; |
| 107 | |
| 108 | for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz) |
| 109 | rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa + i, 0); |
| 110 | |
| 111 | for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz) |
| 112 | plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, |
| 113 | vpa + i - cmo_page_sz, 0); |
| 114 | |
| 115 | return rc; |
Brian King | 86630a3 | 2008-07-24 04:29:16 +1000 | [diff] [blame] | 116 | } |
| 117 | |
Michael Ellerman | 40765d2 | 2005-11-03 19:34:38 +1100 | [diff] [blame] | 118 | extern void vpa_init(int cpu); |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 119 | |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 120 | static inline long plpar_pte_enter(unsigned long flags, |
| 121 | unsigned long hpte_group, unsigned long hpte_v, |
| 122 | unsigned long hpte_r, unsigned long *slot) |
| 123 | { |
| 124 | long rc; |
| 125 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 126 | |
| 127 | rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r); |
| 128 | |
| 129 | *slot = retbuf[0]; |
| 130 | |
| 131 | return rc; |
| 132 | } |
| 133 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 134 | static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex, |
| 135 | unsigned long avpn, unsigned long *old_pteh_ret, |
| 136 | unsigned long *old_ptel_ret) |
| 137 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 138 | long rc; |
| 139 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 140 | |
| 141 | rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn); |
| 142 | |
| 143 | *old_pteh_ret = retbuf[0]; |
| 144 | *old_ptel_ret = retbuf[1]; |
| 145 | |
| 146 | return rc; |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 147 | } |
| 148 | |
Mohan Kumar M | b4aea36 | 2007-03-21 11:21:32 +0530 | [diff] [blame] | 149 | /* plpar_pte_remove_raw can be called in real mode. It calls plpar_hcall_raw */ |
| 150 | static inline long plpar_pte_remove_raw(unsigned long flags, unsigned long ptex, |
| 151 | unsigned long avpn, unsigned long *old_pteh_ret, |
| 152 | unsigned long *old_ptel_ret) |
| 153 | { |
| 154 | long rc; |
| 155 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 156 | |
| 157 | rc = plpar_hcall_raw(H_REMOVE, retbuf, flags, ptex, avpn); |
| 158 | |
| 159 | *old_pteh_ret = retbuf[0]; |
| 160 | *old_ptel_ret = retbuf[1]; |
| 161 | |
| 162 | return rc; |
| 163 | } |
| 164 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 165 | static inline long plpar_pte_read(unsigned long flags, unsigned long ptex, |
| 166 | unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) |
| 167 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 168 | long rc; |
| 169 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 170 | |
| 171 | rc = plpar_hcall(H_READ, retbuf, flags, ptex); |
| 172 | |
| 173 | *old_pteh_ret = retbuf[0]; |
| 174 | *old_ptel_ret = retbuf[1]; |
| 175 | |
| 176 | return rc; |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 177 | } |
| 178 | |
Sachin P. Sant | b7abc5c | 2007-06-14 15:31:34 +1000 | [diff] [blame] | 179 | /* plpar_pte_read_raw can be called in real mode. It calls plpar_hcall_raw */ |
| 180 | static inline long plpar_pte_read_raw(unsigned long flags, unsigned long ptex, |
| 181 | unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) |
| 182 | { |
| 183 | long rc; |
| 184 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 185 | |
| 186 | rc = plpar_hcall_raw(H_READ, retbuf, flags, ptex); |
| 187 | |
| 188 | *old_pteh_ret = retbuf[0]; |
| 189 | *old_ptel_ret = retbuf[1]; |
| 190 | |
| 191 | return rc; |
| 192 | } |
| 193 | |
Michael Neuling | f90ece2 | 2010-05-10 20:28:26 +0000 | [diff] [blame] | 194 | /* |
| 195 | * plpar_pte_read_4_raw can be called in real mode. |
| 196 | * ptes must be 8*sizeof(unsigned long) |
| 197 | */ |
| 198 | static inline long plpar_pte_read_4_raw(unsigned long flags, unsigned long ptex, |
| 199 | unsigned long *ptes) |
| 200 | |
| 201 | { |
| 202 | long rc; |
| 203 | unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; |
| 204 | |
| 205 | rc = plpar_hcall9_raw(H_READ, retbuf, flags | H_READ_4, ptex); |
| 206 | |
| 207 | memcpy(ptes, retbuf, 8*sizeof(unsigned long)); |
| 208 | |
| 209 | return rc; |
| 210 | } |
| 211 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 212 | static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, |
| 213 | unsigned long avpn) |
| 214 | { |
| 215 | return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn); |
| 216 | } |
| 217 | |
| 218 | static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba, |
| 219 | unsigned long *tce_ret) |
| 220 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 221 | long rc; |
| 222 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 223 | |
| 224 | rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba); |
| 225 | |
| 226 | *tce_ret = retbuf[0]; |
| 227 | |
| 228 | return rc; |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba, |
| 232 | unsigned long tceval) |
| 233 | { |
| 234 | return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval); |
| 235 | } |
| 236 | |
| 237 | static inline long plpar_tce_put_indirect(unsigned long liobn, |
| 238 | unsigned long ioba, unsigned long page, unsigned long count) |
| 239 | { |
| 240 | return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count); |
| 241 | } |
| 242 | |
| 243 | static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba, |
| 244 | unsigned long tceval, unsigned long count) |
| 245 | { |
| 246 | return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count); |
| 247 | } |
| 248 | |
| 249 | static inline long plpar_get_term_char(unsigned long termno, |
| 250 | unsigned long *len_ret, char *buf_ret) |
| 251 | { |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 252 | long rc; |
| 253 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 254 | unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */ |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 255 | |
| 256 | rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno); |
| 257 | |
| 258 | *len_ret = retbuf[0]; |
| 259 | lbuf[0] = retbuf[1]; |
| 260 | lbuf[1] = retbuf[2]; |
| 261 | |
| 262 | return rc; |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | static inline long plpar_put_term_char(unsigned long termno, unsigned long len, |
| 266 | const char *buffer) |
| 267 | { |
| 268 | unsigned long *lbuf = (unsigned long *)buffer; /* TODO: alignment? */ |
| 269 | return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0], |
| 270 | lbuf[1]); |
| 271 | } |
| 272 | |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 273 | static inline long plpar_eoi(unsigned long xirr) |
| 274 | { |
| 275 | return plpar_hcall_norets(H_EOI, xirr); |
| 276 | } |
| 277 | |
| 278 | static inline long plpar_cppr(unsigned long cppr) |
| 279 | { |
| 280 | return plpar_hcall_norets(H_CPPR, cppr); |
| 281 | } |
| 282 | |
| 283 | static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) |
| 284 | { |
| 285 | return plpar_hcall_norets(H_IPI, servernum, mfrr); |
| 286 | } |
| 287 | |
Mark Nelson | f09b7b2 | 2010-01-31 20:12:58 +0000 | [diff] [blame] | 288 | static inline long plpar_xirr(unsigned long *xirr_ret, unsigned char cppr) |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 289 | { |
| 290 | long rc; |
| 291 | unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; |
| 292 | |
Mark Nelson | f09b7b2 | 2010-01-31 20:12:58 +0000 | [diff] [blame] | 293 | rc = plpar_hcall(H_XIRR, retbuf, cppr); |
Anton Blanchard | b9377ff | 2006-07-19 08:01:28 +1000 | [diff] [blame] | 294 | |
| 295 | *xirr_ret = retbuf[0]; |
| 296 | |
| 297 | return rc; |
| 298 | } |
| 299 | |
Michael Ellerman | a121872 | 2005-11-03 15:33:31 +1100 | [diff] [blame] | 300 | #endif /* _PSERIES_PLPAR_WRAPPERS_H */ |