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Linux/arch/powerpc/include/asm/hvcall.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _ASM_POWERPC_HVCALL_H
  3 #define _ASM_POWERPC_HVCALL_H
  4 #ifdef __KERNEL__
  5 
  6 #define HVSC                    .long 0x44000022
  7 
  8 #define H_SUCCESS       0
  9 #define H_BUSY          1       /* Hardware busy -- retry later */
 10 #define H_CLOSED        2       /* Resource closed */
 11 #define H_NOT_AVAILABLE 3
 12 #define H_CONSTRAINED   4       /* Resource request constrained to max allowed */
 13 #define H_PARTIAL       5
 14 #define H_IN_PROGRESS   14      /* Kind of like busy */
 15 #define H_PAGE_REGISTERED 15
 16 #define H_PARTIAL_STORE   16
 17 #define H_PENDING       17      /* returned from H_POLL_PENDING */
 18 #define H_CONTINUE      18      /* Returned from H_Join on success */
 19 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
 20 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
 21                                                  is a good time to retry */
 22 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
 23                                                  is a good time to retry */
 24 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
 25                                                  is a good time to retry */
 26 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
 27                                                  is a good time to retry */
 28 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
 29                                                  is a good time to retry */
 30 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
 31                                                  is a good time to retry */
 32 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
 33 
 34 /* Internal value used in book3s_hv kvm support; not returned to guests */
 35 #define H_TOO_HARD      9999
 36 
 37 #define H_HARDWARE      -1      /* Hardware error */
 38 #define H_FUNCTION      -2      /* Function not supported */
 39 #define H_PRIVILEGE     -3      /* Caller not privileged */
 40 #define H_PARAMETER     -4      /* Parameter invalid, out-of-range or conflicting */
 41 #define H_BAD_MODE      -5      /* Illegal msr value */
 42 #define H_PTEG_FULL     -6      /* PTEG is full */
 43 #define H_NOT_FOUND     -7      /* PTE was not found" */
 44 #define H_RESERVED_DABR -8      /* DABR address is reserved by the hypervisor on this processor" */
 45 #define H_NO_MEM        -9
 46 #define H_AUTHORITY     -10
 47 #define H_PERMISSION    -11
 48 #define H_DROPPED       -12
 49 #define H_SOURCE_PARM   -13
 50 #define H_DEST_PARM     -14
 51 #define H_REMOTE_PARM   -15
 52 #define H_RESOURCE      -16
 53 #define H_ADAPTER_PARM  -17
 54 #define H_RH_PARM       -18
 55 #define H_RCQ_PARM      -19
 56 #define H_SCQ_PARM      -20
 57 #define H_EQ_PARM       -21
 58 #define H_RT_PARM       -22
 59 #define H_ST_PARM       -23
 60 #define H_SIGT_PARM     -24
 61 #define H_TOKEN_PARM    -25
 62 #define H_MLENGTH_PARM  -27
 63 #define H_MEM_PARM      -28
 64 #define H_MEM_ACCESS_PARM -29
 65 #define H_ATTR_PARM     -30
 66 #define H_PORT_PARM     -31
 67 #define H_MCG_PARM      -32
 68 #define H_VL_PARM       -33
 69 #define H_TSIZE_PARM    -34
 70 #define H_TRACE_PARM    -35
 71 
 72 #define H_MASK_PARM     -37
 73 #define H_MCG_FULL      -38
 74 #define H_ALIAS_EXIST   -39
 75 #define H_P_COUNTER     -40
 76 #define H_TABLE_FULL    -41
 77 #define H_ALT_TABLE     -42
 78 #define H_MR_CONDITION  -43
 79 #define H_NOT_ENOUGH_RESOURCES -44
 80 #define H_R_STATE       -45
 81 #define H_RESCINDED     -46
 82 #define H_P2            -55
 83 #define H_P3            -56
 84 #define H_P4            -57
 85 #define H_P5            -58
 86 #define H_P6            -59
 87 #define H_P7            -60
 88 #define H_P8            -61
 89 #define H_P9            -62
 90 #define H_TOO_BIG       -64
 91 #define H_OVERLAP       -68
 92 #define H_INTERRUPT     -69
 93 #define H_BAD_DATA      -70
 94 #define H_NOT_ACTIVE    -71
 95 #define H_SG_LIST       -72
 96 #define H_OP_MODE       -73
 97 #define H_COP_HW        -74
 98 #define H_STATE         -75
 99 #define H_UNSUPPORTED_FLAG_START        -256
100 #define H_UNSUPPORTED_FLAG_END          -511
101 #define H_MULTI_THREADS_ACTIVE  -9005
102 #define H_OUTSTANDING_COP_OPS   -9006
103 
104 
105 /* Long Busy is a condition that can be returned by the firmware
106  * when a call cannot be completed now, but the identical call
107  * should be retried later.  This prevents calls blocking in the
108  * firmware for long periods of time.  Annoyingly the firmware can return
109  * a range of return codes, hinting at how long we should wait before
110  * retrying.  If you don't care for the hint, the macro below is a good
111  * way to check for the long_busy return codes
112  */
113 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
114                              && (x <= H_LONG_BUSY_END_RANGE))
115 
116 /* Flags */
117 #define H_LARGE_PAGE            (1UL<<(63-16))
118 #define H_EXACT                 (1UL<<(63-24))  /* Use exact PTE or return H_PTEG_FULL */
119 #define H_R_XLATE               (1UL<<(63-25))  /* include a valid logical page num in the pte if the valid bit is set */
120 #define H_READ_4                (1UL<<(63-26))  /* Return 4 PTEs */
121 #define H_PAGE_STATE_CHANGE     (1UL<<(63-28))
122 #define H_PAGE_UNUSED           ((1UL<<(63-29)) | (1UL<<(63-30)))
123 #define H_PAGE_SET_UNUSED       (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
124 #define H_PAGE_SET_LOANED       (H_PAGE_SET_UNUSED | (1UL<<(63-31)))
125 #define H_PAGE_SET_ACTIVE       H_PAGE_STATE_CHANGE
126 #define H_AVPN                  (1UL<<(63-32))  /* An avpn is provided as a sanity test */
127 #define H_ANDCOND               (1UL<<(63-33))
128 #define H_LOCAL                 (1UL<<(63-35))
129 #define H_ICACHE_INVALIDATE     (1UL<<(63-40))  /* icbi, etc.  (ignored for IO pages) */
130 #define H_ICACHE_SYNCHRONIZE    (1UL<<(63-41))  /* dcbst, icbi, etc (ignored for IO pages */
131 #define H_COALESCE_CAND (1UL<<(63-42))  /* page is a good candidate for coalescing */
132 #define H_ZERO_PAGE             (1UL<<(63-48))  /* zero the page before mapping (ignored for IO pages) */
133 #define H_COPY_PAGE             (1UL<<(63-49))
134 #define H_N                     (1UL<<(63-61))
135 #define H_PP1                   (1UL<<(63-62))
136 #define H_PP2                   (1UL<<(63-63))
137 
138 /* Flags for H_REGISTER_VPA subfunction field */
139 #define H_VPA_FUNC_SHIFT        (63-18) /* Bit posn of subfunction code */
140 #define H_VPA_FUNC_MASK         7UL
141 #define H_VPA_REG_VPA           1UL     /* Register Virtual Processor Area */
142 #define H_VPA_REG_DTL           2UL     /* Register Dispatch Trace Log */
143 #define H_VPA_REG_SLB           3UL     /* Register SLB shadow buffer */
144 #define H_VPA_DEREG_VPA         5UL     /* Deregister Virtual Processor Area */
145 #define H_VPA_DEREG_DTL         6UL     /* Deregister Dispatch Trace Log */
146 #define H_VPA_DEREG_SLB         7UL     /* Deregister SLB shadow buffer */
147 
148 /* VASI States */
149 #define H_VASI_INVALID          0
150 #define H_VASI_ENABLED          1
151 #define H_VASI_ABORTED          2
152 #define H_VASI_SUSPENDING       3
153 #define H_VASI_SUSPENDED        4
154 #define H_VASI_RESUMED          5
155 #define H_VASI_COMPLETED        6
156 
157 /* Each control block has to be on a 4K boundary */
158 #define H_CB_ALIGNMENT          4096
159 
160 /* pSeries hypervisor opcodes */
161 #define H_REMOVE                0x04
162 #define H_ENTER                 0x08
163 #define H_READ                  0x0c
164 #define H_CLEAR_MOD             0x10
165 #define H_CLEAR_REF             0x14
166 #define H_PROTECT               0x18
167 #define H_GET_TCE               0x1c
168 #define H_PUT_TCE               0x20
169 #define H_SET_SPRG0             0x24
170 #define H_SET_DABR              0x28
171 #define H_PAGE_INIT             0x2c
172 #define H_SET_ASR               0x30
173 #define H_ASR_ON                0x34
174 #define H_ASR_OFF               0x38
175 #define H_LOGICAL_CI_LOAD       0x3c
176 #define H_LOGICAL_CI_STORE      0x40
177 #define H_LOGICAL_CACHE_LOAD    0x44
178 #define H_LOGICAL_CACHE_STORE   0x48
179 #define H_LOGICAL_ICBI          0x4c
180 #define H_LOGICAL_DCBF          0x50
181 #define H_GET_TERM_CHAR         0x54
182 #define H_PUT_TERM_CHAR         0x58
183 #define H_REAL_TO_LOGICAL       0x5c
184 #define H_HYPERVISOR_DATA       0x60
185 #define H_EOI                   0x64
186 #define H_CPPR                  0x68
187 #define H_IPI                   0x6c
188 #define H_IPOLL                 0x70
189 #define H_XIRR                  0x74
190 #define H_PERFMON               0x7c
191 #define H_MIGRATE_DMA           0x78
192 #define H_REGISTER_VPA          0xDC
193 #define H_CEDE                  0xE0
194 #define H_CONFER                0xE4
195 #define H_PROD                  0xE8
196 #define H_GET_PPP               0xEC
197 #define H_SET_PPP               0xF0
198 #define H_PURR                  0xF4
199 #define H_PIC                   0xF8
200 #define H_REG_CRQ               0xFC
201 #define H_FREE_CRQ              0x100
202 #define H_VIO_SIGNAL            0x104
203 #define H_SEND_CRQ              0x108
204 #define H_COPY_RDMA             0x110
205 #define H_REGISTER_LOGICAL_LAN  0x114
206 #define H_FREE_LOGICAL_LAN      0x118
207 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
208 #define H_SEND_LOGICAL_LAN      0x120
209 #define H_BULK_REMOVE           0x124
210 #define H_MULTICAST_CTRL        0x130
211 #define H_SET_XDABR             0x134
212 #define H_STUFF_TCE             0x138
213 #define H_PUT_TCE_INDIRECT      0x13C
214 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
215 #define H_VTERM_PARTNER_INFO    0x150
216 #define H_REGISTER_VTERM        0x154
217 #define H_FREE_VTERM            0x158
218 #define H_RESET_EVENTS          0x15C
219 #define H_ALLOC_RESOURCE        0x160
220 #define H_FREE_RESOURCE         0x164
221 #define H_MODIFY_QP             0x168
222 #define H_QUERY_QP              0x16C
223 #define H_REREGISTER_PMR        0x170
224 #define H_REGISTER_SMR          0x174
225 #define H_QUERY_MR              0x178
226 #define H_QUERY_MW              0x17C
227 #define H_QUERY_HCA             0x180
228 #define H_QUERY_PORT            0x184
229 #define H_MODIFY_PORT           0x188
230 #define H_DEFINE_AQP1           0x18C
231 #define H_GET_TRACE_BUFFER      0x190
232 #define H_DEFINE_AQP0           0x194
233 #define H_RESIZE_MR             0x198
234 #define H_ATTACH_MCQP           0x19C
235 #define H_DETACH_MCQP           0x1A0
236 #define H_CREATE_RPT            0x1A4
237 #define H_REMOVE_RPT            0x1A8
238 #define H_REGISTER_RPAGES       0x1AC
239 #define H_DISABLE_AND_GETC      0x1B0
240 #define H_ERROR_DATA            0x1B4
241 #define H_GET_HCA_INFO          0x1B8
242 #define H_GET_PERF_COUNT        0x1BC
243 #define H_MANAGE_TRACE          0x1C0
244 #define H_GET_CPU_CHARACTERISTICS 0x1C8
245 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
246 #define H_QUERY_INT_STATE       0x1E4
247 #define H_POLL_PENDING          0x1D8
248 #define H_ILLAN_ATTRIBUTES      0x244
249 #define H_MODIFY_HEA_QP         0x250
250 #define H_QUERY_HEA_QP          0x254
251 #define H_QUERY_HEA             0x258
252 #define H_QUERY_HEA_PORT        0x25C
253 #define H_MODIFY_HEA_PORT       0x260
254 #define H_REG_BCMC              0x264
255 #define H_DEREG_BCMC            0x268
256 #define H_REGISTER_HEA_RPAGES   0x26C
257 #define H_DISABLE_AND_GET_HEA   0x270
258 #define H_GET_HEA_INFO          0x274
259 #define H_ALLOC_HEA_RESOURCE    0x278
260 #define H_ADD_CONN              0x284
261 #define H_DEL_CONN              0x288
262 #define H_JOIN                  0x298
263 #define H_VASI_STATE            0x2A4
264 #define H_VIOCTL                0x2A8
265 #define H_ENABLE_CRQ            0x2B0
266 #define H_GET_EM_PARMS          0x2B8
267 #define H_SET_MPP               0x2D0
268 #define H_GET_MPP               0x2D4
269 #define H_REG_SUB_CRQ           0x2DC
270 #define H_HOME_NODE_ASSOCIATIVITY 0x2EC
271 #define H_FREE_SUB_CRQ          0x2E0
272 #define H_SEND_SUB_CRQ          0x2E4
273 #define H_SEND_SUB_CRQ_INDIRECT 0x2E8
274 #define H_BEST_ENERGY           0x2F4
275 #define H_XIRR_X                0x2FC
276 #define H_RANDOM                0x300
277 #define H_COP                   0x304
278 #define H_GET_MPP_X             0x314
279 #define H_SET_MODE              0x31C
280 #define H_CLEAR_HPT             0x358
281 #define H_RESIZE_HPT_PREPARE    0x36C
282 #define H_RESIZE_HPT_COMMIT     0x370
283 #define H_REGISTER_PROC_TBL     0x37C
284 #define H_SIGNAL_SYS_RESET      0x380
285 #define H_INT_GET_SOURCE_INFO   0x3A8
286 #define H_INT_SET_SOURCE_CONFIG 0x3AC
287 #define H_INT_GET_SOURCE_CONFIG 0x3B0
288 #define H_INT_GET_QUEUE_INFO    0x3B4
289 #define H_INT_SET_QUEUE_CONFIG  0x3B8
290 #define H_INT_GET_QUEUE_CONFIG  0x3BC
291 #define H_INT_SET_OS_REPORTING_LINE 0x3C0
292 #define H_INT_GET_OS_REPORTING_LINE 0x3C4
293 #define H_INT_ESB               0x3C8
294 #define H_INT_SYNC              0x3CC
295 #define H_INT_RESET             0x3D0
296 #define MAX_HCALL_OPCODE        H_INT_RESET
297 
298 /* H_VIOCTL functions */
299 #define H_GET_VIOA_DUMP_SIZE    0x01
300 #define H_GET_VIOA_DUMP         0x02
301 #define H_GET_ILLAN_NUM_VLAN_IDS 0x03
302 #define H_GET_ILLAN_VLAN_ID_LIST 0x04
303 #define H_GET_ILLAN_SWITCH_ID   0x05
304 #define H_DISABLE_MIGRATION     0x06
305 #define H_ENABLE_MIGRATION      0x07
306 #define H_GET_PARTNER_INFO      0x08
307 #define H_GET_PARTNER_WWPN_LIST 0x09
308 #define H_DISABLE_ALL_VIO_INTS  0x0A
309 #define H_DISABLE_VIO_INTERRUPT 0x0B
310 #define H_ENABLE_VIO_INTERRUPT  0x0C
311 #define H_GET_SESSION_TOKEN     0x19
312 #define H_SESSION_ERR_DETECTED  0x1A
313 
314 
315 /* Platform specific hcalls, used by KVM */
316 #define H_RTAS                  0xf000
317 
318 /* "Platform specific hcalls", provided by PHYP */
319 #define H_GET_24X7_CATALOG_PAGE 0xF078
320 #define H_GET_24X7_DATA         0xF07C
321 #define H_GET_PERF_COUNTER_INFO 0xF080
322 
323 /* Values for 2nd argument to H_SET_MODE */
324 #define H_SET_MODE_RESOURCE_SET_CIABR           1
325 #define H_SET_MODE_RESOURCE_SET_DAWR            2
326 #define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE     3
327 #define H_SET_MODE_RESOURCE_LE                  4
328 
329 /* Values for argument to H_SIGNAL_SYS_RESET */
330 #define H_SIGNAL_SYS_RESET_ALL                  -1
331 #define H_SIGNAL_SYS_RESET_ALL_OTHERS           -2
332 /* >= 0 values are CPU number */
333 
334 /* H_GET_CPU_CHARACTERISTICS return values */
335 #define H_CPU_CHAR_SPEC_BAR_ORI31       (1ull << 63) // IBM bit 0
336 #define H_CPU_CHAR_BCCTRL_SERIALISED    (1ull << 62) // IBM bit 1
337 #define H_CPU_CHAR_L1D_FLUSH_ORI30      (1ull << 61) // IBM bit 2
338 #define H_CPU_CHAR_L1D_FLUSH_TRIG2      (1ull << 60) // IBM bit 3
339 #define H_CPU_CHAR_L1D_THREAD_PRIV      (1ull << 59) // IBM bit 4
340 
341 #define H_CPU_BEHAV_FAVOUR_SECURITY     (1ull << 63) // IBM bit 0
342 #define H_CPU_BEHAV_L1D_FLUSH_PR        (1ull << 62) // IBM bit 1
343 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR   (1ull << 61) // IBM bit 2
344 
345 /* Flag values used in H_REGISTER_PROC_TBL hcall */
346 #define PROC_TABLE_OP_MASK      0x18
347 #define PROC_TABLE_DEREG        0x10
348 #define PROC_TABLE_NEW          0x18
349 #define PROC_TABLE_TYPE_MASK    0x06
350 #define PROC_TABLE_HPT_SLB      0x00
351 #define PROC_TABLE_HPT_PT       0x02
352 #define PROC_TABLE_RADIX        0x04
353 #define PROC_TABLE_GTSE         0x01
354 
355 #ifndef __ASSEMBLY__
356 #include <linux/types.h>
357 
358 /**
359  * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
360  * @opcode: The hypervisor call to make.
361  *
362  * This call supports up to 7 arguments and only returns the status of
363  * the hcall. Use this version where possible, its slightly faster than
364  * the other plpar_hcalls.
365  */
366 long plpar_hcall_norets(unsigned long opcode, ...);
367 
368 /**
369  * plpar_hcall: - Make a pseries hypervisor call
370  * @opcode: The hypervisor call to make.
371  * @retbuf: Buffer to store up to 4 return arguments in.
372  *
373  * This call supports up to 6 arguments and 4 return arguments. Use
374  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
375  *
376  * Used for all but the craziest of phyp interfaces (see plpar_hcall9)
377  */
378 #define PLPAR_HCALL_BUFSIZE 4
379 long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
380 
381 /**
382  * plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
383  * @opcode: The hypervisor call to make.
384  * @retbuf: Buffer to store up to 4 return arguments in.
385  *
386  * This call supports up to 6 arguments and 4 return arguments. Use
387  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
388  *
389  * Used when phyp interface needs to be called in real mode. Similar to
390  * plpar_hcall, but plpar_hcall_raw works in real mode and does not
391  * calculate hypervisor call statistics.
392  */
393 long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
394 
395 /**
396  * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
397  * @opcode: The hypervisor call to make.
398  * @retbuf: Buffer to store up to 9 return arguments in.
399  *
400  * This call supports up to 9 arguments and 9 return arguments. Use
401  * PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
402  */
403 #define PLPAR_HCALL9_BUFSIZE 9
404 long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
405 long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...);
406 
407 struct hvcall_mpp_data {
408         unsigned long entitled_mem;
409         unsigned long mapped_mem;
410         unsigned short group_num;
411         unsigned short pool_num;
412         unsigned char mem_weight;
413         unsigned char unallocated_mem_weight;
414         unsigned long unallocated_entitlement;  /* value in bytes */
415         unsigned long pool_size;
416         signed long loan_request;
417         unsigned long backing_mem;
418 };
419 
420 int h_get_mpp(struct hvcall_mpp_data *);
421 
422 struct hvcall_mpp_x_data {
423         unsigned long coalesced_bytes;
424         unsigned long pool_coalesced_bytes;
425         unsigned long pool_purr_cycles;
426         unsigned long pool_spurr_cycles;
427         unsigned long reserved[3];
428 };
429 
430 int h_get_mpp_x(struct hvcall_mpp_x_data *mpp_x_data);
431 
432 static inline unsigned int get_longbusy_msecs(int longbusy_rc)
433 {
434         switch (longbusy_rc) {
435         case H_LONG_BUSY_ORDER_1_MSEC:
436                 return 1;
437         case H_LONG_BUSY_ORDER_10_MSEC:
438                 return 10;
439         case H_LONG_BUSY_ORDER_100_MSEC:
440                 return 100;
441         case H_LONG_BUSY_ORDER_1_SEC:
442                 return 1000;
443         case H_LONG_BUSY_ORDER_10_SEC:
444                 return 10000;
445         case H_LONG_BUSY_ORDER_100_SEC:
446                 return 100000;
447         default:
448                 return 1;
449         }
450 }
451 
452 struct h_cpu_char_result {
453         u64 character;
454         u64 behaviour;
455 };
456 
457 #endif /* __ASSEMBLY__ */
458 #endif /* __KERNEL__ */
459 #endif /* _ASM_POWERPC_HVCALL_H */
460 

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