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