xref: /openbmc/qemu/include/hw/ppc/spapr.h (revision 52f91c37)
1 #if !defined(__HW_SPAPR_H__)
2 #define __HW_SPAPR_H__
3 
4 #include "sysemu/dma.h"
5 #include "hw/ppc/xics.h"
6 
7 struct VIOsPAPRBus;
8 struct sPAPRPHBState;
9 struct sPAPRNVRAM;
10 
11 #define HPTE64_V_HPTE_DIRTY     0x0000000000000040ULL
12 
13 typedef struct sPAPREnvironment {
14     struct VIOsPAPRBus *vio_bus;
15     QLIST_HEAD(, sPAPRPHBState) phbs;
16     hwaddr msi_win_addr;
17     MemoryRegion msiwindow;
18     struct sPAPRNVRAM *nvram;
19     XICSState *icp;
20 
21     hwaddr ram_limit;
22     void *htab;
23     uint32_t htab_shift;
24     hwaddr rma_size;
25     int vrma_adjust;
26     hwaddr fdt_addr, rtas_addr;
27     long rtas_size;
28     void *fdt_skel;
29     target_ulong entry_point;
30     uint32_t next_irq;
31     uint64_t rtc_offset;
32     bool has_graphics;
33 
34     uint32_t epow_irq;
35     Notifier epow_notifier;
36 
37     /* Migration state */
38     int htab_save_index;
39     bool htab_first_pass;
40     int htab_fd;
41 } sPAPREnvironment;
42 
43 #define H_SUCCESS         0
44 #define H_BUSY            1        /* Hardware busy -- retry later */
45 #define H_CLOSED          2        /* Resource closed */
46 #define H_NOT_AVAILABLE   3
47 #define H_CONSTRAINED     4        /* Resource request constrained to max allowed */
48 #define H_PARTIAL         5
49 #define H_IN_PROGRESS     14       /* Kind of like busy */
50 #define H_PAGE_REGISTERED 15
51 #define H_PARTIAL_STORE   16
52 #define H_PENDING         17       /* returned from H_POLL_PENDING */
53 #define H_CONTINUE        18       /* Returned from H_Join on success */
54 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
55 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
56                                                  is a good time to retry */
57 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
58                                                  is a good time to retry */
59 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
60                                                  is a good time to retry */
61 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
62                                                  is a good time to retry */
63 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
64                                                  is a good time to retry */
65 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
66                                                  is a good time to retry */
67 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
68 #define H_HARDWARE        -1       /* Hardware error */
69 #define H_FUNCTION        -2       /* Function not supported */
70 #define H_PRIVILEGE       -3       /* Caller not privileged */
71 #define H_PARAMETER       -4       /* Parameter invalid, out-of-range or conflicting */
72 #define H_BAD_MODE        -5       /* Illegal msr value */
73 #define H_PTEG_FULL       -6       /* PTEG is full */
74 #define H_NOT_FOUND       -7       /* PTE was not found" */
75 #define H_RESERVED_DABR   -8       /* DABR address is reserved by the hypervisor on this processor" */
76 #define H_NO_MEM          -9
77 #define H_AUTHORITY       -10
78 #define H_PERMISSION      -11
79 #define H_DROPPED         -12
80 #define H_SOURCE_PARM     -13
81 #define H_DEST_PARM       -14
82 #define H_REMOTE_PARM     -15
83 #define H_RESOURCE        -16
84 #define H_ADAPTER_PARM    -17
85 #define H_RH_PARM         -18
86 #define H_RCQ_PARM        -19
87 #define H_SCQ_PARM        -20
88 #define H_EQ_PARM         -21
89 #define H_RT_PARM         -22
90 #define H_ST_PARM         -23
91 #define H_SIGT_PARM       -24
92 #define H_TOKEN_PARM      -25
93 #define H_MLENGTH_PARM    -27
94 #define H_MEM_PARM        -28
95 #define H_MEM_ACCESS_PARM -29
96 #define H_ATTR_PARM       -30
97 #define H_PORT_PARM       -31
98 #define H_MCG_PARM        -32
99 #define H_VL_PARM         -33
100 #define H_TSIZE_PARM      -34
101 #define H_TRACE_PARM      -35
102 
103 #define H_MASK_PARM       -37
104 #define H_MCG_FULL        -38
105 #define H_ALIAS_EXIST     -39
106 #define H_P_COUNTER       -40
107 #define H_TABLE_FULL      -41
108 #define H_ALT_TABLE       -42
109 #define H_MR_CONDITION    -43
110 #define H_NOT_ENOUGH_RESOURCES -44
111 #define H_R_STATE         -45
112 #define H_RESCINDEND      -46
113 #define H_P2              -55
114 #define H_P3              -56
115 #define H_P4              -57
116 #define H_P5              -58
117 #define H_P6              -59
118 #define H_P7              -60
119 #define H_P8              -61
120 #define H_P9              -62
121 #define H_UNSUPPORTED_FLAG -256
122 #define H_MULTI_THREADS_ACTIVE -9005
123 
124 
125 /* Long Busy is a condition that can be returned by the firmware
126  * when a call cannot be completed now, but the identical call
127  * should be retried later.  This prevents calls blocking in the
128  * firmware for long periods of time.  Annoyingly the firmware can return
129  * a range of return codes, hinting at how long we should wait before
130  * retrying.  If you don't care for the hint, the macro below is a good
131  * way to check for the long_busy return codes
132  */
133 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
134                             && (x <= H_LONG_BUSY_END_RANGE))
135 
136 /* Flags */
137 #define H_LARGE_PAGE      (1ULL<<(63-16))
138 #define H_EXACT           (1ULL<<(63-24))       /* Use exact PTE or return H_PTEG_FULL */
139 #define H_R_XLATE         (1ULL<<(63-25))       /* include a valid logical page num in the pte if the valid bit is set */
140 #define H_READ_4          (1ULL<<(63-26))       /* Return 4 PTEs */
141 #define H_PAGE_STATE_CHANGE (1ULL<<(63-28))
142 #define H_PAGE_UNUSED     ((1ULL<<(63-29)) | (1ULL<<(63-30)))
143 #define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
144 #define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1ULL<<(63-31)))
145 #define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
146 #define H_AVPN            (1ULL<<(63-32))       /* An avpn is provided as a sanity test */
147 #define H_ANDCOND         (1ULL<<(63-33))
148 #define H_ICACHE_INVALIDATE (1ULL<<(63-40))     /* icbi, etc.  (ignored for IO pages) */
149 #define H_ICACHE_SYNCHRONIZE (1ULL<<(63-41))    /* dcbst, icbi, etc (ignored for IO pages */
150 #define H_ZERO_PAGE       (1ULL<<(63-48))       /* zero the page before mapping (ignored for IO pages) */
151 #define H_COPY_PAGE       (1ULL<<(63-49))
152 #define H_N               (1ULL<<(63-61))
153 #define H_PP1             (1ULL<<(63-62))
154 #define H_PP2             (1ULL<<(63-63))
155 
156 /* Values for 2nd argument to H_SET_MODE */
157 #define H_SET_MODE_RESOURCE_SET_CIABR           1
158 #define H_SET_MODE_RESOURCE_SET_DAWR            2
159 #define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE     3
160 #define H_SET_MODE_RESOURCE_LE                  4
161 
162 /* Flags for H_SET_MODE_RESOURCE_LE */
163 #define H_SET_MODE_ENDIAN_BIG    0
164 #define H_SET_MODE_ENDIAN_LITTLE 1
165 
166 /* VASI States */
167 #define H_VASI_INVALID    0
168 #define H_VASI_ENABLED    1
169 #define H_VASI_ABORTED    2
170 #define H_VASI_SUSPENDING 3
171 #define H_VASI_SUSPENDED  4
172 #define H_VASI_RESUMED    5
173 #define H_VASI_COMPLETED  6
174 
175 /* DABRX flags */
176 #define H_DABRX_HYPERVISOR (1ULL<<(63-61))
177 #define H_DABRX_KERNEL     (1ULL<<(63-62))
178 #define H_DABRX_USER       (1ULL<<(63-63))
179 
180 /* Each control block has to be on a 4K boundary */
181 #define H_CB_ALIGNMENT     4096
182 
183 /* pSeries hypervisor opcodes */
184 #define H_REMOVE                0x04
185 #define H_ENTER                 0x08
186 #define H_READ                  0x0c
187 #define H_CLEAR_MOD             0x10
188 #define H_CLEAR_REF             0x14
189 #define H_PROTECT               0x18
190 #define H_GET_TCE               0x1c
191 #define H_PUT_TCE               0x20
192 #define H_SET_SPRG0             0x24
193 #define H_SET_DABR              0x28
194 #define H_PAGE_INIT             0x2c
195 #define H_SET_ASR               0x30
196 #define H_ASR_ON                0x34
197 #define H_ASR_OFF               0x38
198 #define H_LOGICAL_CI_LOAD       0x3c
199 #define H_LOGICAL_CI_STORE      0x40
200 #define H_LOGICAL_CACHE_LOAD    0x44
201 #define H_LOGICAL_CACHE_STORE   0x48
202 #define H_LOGICAL_ICBI          0x4c
203 #define H_LOGICAL_DCBF          0x50
204 #define H_GET_TERM_CHAR         0x54
205 #define H_PUT_TERM_CHAR         0x58
206 #define H_REAL_TO_LOGICAL       0x5c
207 #define H_HYPERVISOR_DATA       0x60
208 #define H_EOI                   0x64
209 #define H_CPPR                  0x68
210 #define H_IPI                   0x6c
211 #define H_IPOLL                 0x70
212 #define H_XIRR                  0x74
213 #define H_PERFMON               0x7c
214 #define H_MIGRATE_DMA           0x78
215 #define H_REGISTER_VPA          0xDC
216 #define H_CEDE                  0xE0
217 #define H_CONFER                0xE4
218 #define H_PROD                  0xE8
219 #define H_GET_PPP               0xEC
220 #define H_SET_PPP               0xF0
221 #define H_PURR                  0xF4
222 #define H_PIC                   0xF8
223 #define H_REG_CRQ               0xFC
224 #define H_FREE_CRQ              0x100
225 #define H_VIO_SIGNAL            0x104
226 #define H_SEND_CRQ              0x108
227 #define H_COPY_RDMA             0x110
228 #define H_REGISTER_LOGICAL_LAN  0x114
229 #define H_FREE_LOGICAL_LAN      0x118
230 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
231 #define H_SEND_LOGICAL_LAN      0x120
232 #define H_BULK_REMOVE           0x124
233 #define H_MULTICAST_CTRL        0x130
234 #define H_SET_XDABR             0x134
235 #define H_STUFF_TCE             0x138
236 #define H_PUT_TCE_INDIRECT      0x13C
237 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
238 #define H_VTERM_PARTNER_INFO    0x150
239 #define H_REGISTER_VTERM        0x154
240 #define H_FREE_VTERM            0x158
241 #define H_RESET_EVENTS          0x15C
242 #define H_ALLOC_RESOURCE        0x160
243 #define H_FREE_RESOURCE         0x164
244 #define H_MODIFY_QP             0x168
245 #define H_QUERY_QP              0x16C
246 #define H_REREGISTER_PMR        0x170
247 #define H_REGISTER_SMR          0x174
248 #define H_QUERY_MR              0x178
249 #define H_QUERY_MW              0x17C
250 #define H_QUERY_HCA             0x180
251 #define H_QUERY_PORT            0x184
252 #define H_MODIFY_PORT           0x188
253 #define H_DEFINE_AQP1           0x18C
254 #define H_GET_TRACE_BUFFER      0x190
255 #define H_DEFINE_AQP0           0x194
256 #define H_RESIZE_MR             0x198
257 #define H_ATTACH_MCQP           0x19C
258 #define H_DETACH_MCQP           0x1A0
259 #define H_CREATE_RPT            0x1A4
260 #define H_REMOVE_RPT            0x1A8
261 #define H_REGISTER_RPAGES       0x1AC
262 #define H_DISABLE_AND_GETC      0x1B0
263 #define H_ERROR_DATA            0x1B4
264 #define H_GET_HCA_INFO          0x1B8
265 #define H_GET_PERF_COUNT        0x1BC
266 #define H_MANAGE_TRACE          0x1C0
267 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
268 #define H_QUERY_INT_STATE       0x1E4
269 #define H_POLL_PENDING          0x1D8
270 #define H_ILLAN_ATTRIBUTES      0x244
271 #define H_MODIFY_HEA_QP         0x250
272 #define H_QUERY_HEA_QP          0x254
273 #define H_QUERY_HEA             0x258
274 #define H_QUERY_HEA_PORT        0x25C
275 #define H_MODIFY_HEA_PORT       0x260
276 #define H_REG_BCMC              0x264
277 #define H_DEREG_BCMC            0x268
278 #define H_REGISTER_HEA_RPAGES   0x26C
279 #define H_DISABLE_AND_GET_HEA   0x270
280 #define H_GET_HEA_INFO          0x274
281 #define H_ALLOC_HEA_RESOURCE    0x278
282 #define H_ADD_CONN              0x284
283 #define H_DEL_CONN              0x288
284 #define H_JOIN                  0x298
285 #define H_VASI_STATE            0x2A4
286 #define H_ENABLE_CRQ            0x2B0
287 #define H_GET_EM_PARMS          0x2B8
288 #define H_SET_MPP               0x2D0
289 #define H_GET_MPP               0x2D4
290 #define H_XIRR_X                0x2FC
291 #define H_SET_MODE              0x31C
292 #define MAX_HCALL_OPCODE        H_SET_MODE
293 
294 /* The hcalls above are standardized in PAPR and implemented by pHyp
295  * as well.
296  *
297  * We also need some hcalls which are specific to qemu / KVM-on-POWER.
298  * So far we just need one for H_RTAS, but in future we'll need more
299  * for extensions like virtio.  We put those into the 0xf000-0xfffc
300  * range which is reserved by PAPR for "platform-specific" hcalls.
301  */
302 #define KVMPPC_HCALL_BASE       0xf000
303 #define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)
304 #define KVMPPC_H_LOGICAL_MEMOP  (KVMPPC_HCALL_BASE + 0x1)
305 #define KVMPPC_HCALL_MAX        KVMPPC_H_LOGICAL_MEMOP
306 
307 extern sPAPREnvironment *spapr;
308 
309 /*#define DEBUG_SPAPR_HCALLS*/
310 
311 #ifdef DEBUG_SPAPR_HCALLS
312 #define hcall_dprintf(fmt, ...) \
313     do { fprintf(stderr, "%s: " fmt, __func__, ## __VA_ARGS__); } while (0)
314 #else
315 #define hcall_dprintf(fmt, ...) \
316     do { } while (0)
317 #endif
318 
319 typedef target_ulong (*spapr_hcall_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr,
320                                        target_ulong opcode,
321                                        target_ulong *args);
322 
323 void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn);
324 target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
325                              target_ulong *args);
326 
327 int spapr_allocate_irq(int hint, bool lsi);
328 int spapr_allocate_irq_block(int num, bool lsi, bool msi);
329 
330 static inline int spapr_allocate_msi(int hint)
331 {
332     return spapr_allocate_irq(hint, false);
333 }
334 
335 static inline int spapr_allocate_lsi(int hint)
336 {
337     return spapr_allocate_irq(hint, true);
338 }
339 
340 /* RTAS return codes */
341 #define RTAS_OUT_SUCCESS            0
342 #define RTAS_OUT_NO_ERRORS_FOUND    1
343 #define RTAS_OUT_HW_ERROR           -1
344 #define RTAS_OUT_BUSY               -2
345 #define RTAS_OUT_PARAM_ERROR        -3
346 #define RTAS_OUT_NOT_SUPPORTED      -3
347 #define RTAS_OUT_NOT_AUTHORIZED     -9002
348 
349 static inline uint64_t ppc64_phys_to_real(uint64_t addr)
350 {
351     return addr & ~0xF000000000000000ULL;
352 }
353 
354 static inline uint32_t rtas_ld(target_ulong phys, int n)
355 {
356     return ldl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n));
357 }
358 
359 static inline void rtas_st(target_ulong phys, int n, uint32_t val)
360 {
361     stl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n), val);
362 }
363 
364 typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr,
365                               uint32_t token,
366                               uint32_t nargs, target_ulong args,
367                               uint32_t nret, target_ulong rets);
368 int spapr_rtas_register(const char *name, spapr_rtas_fn fn);
369 target_ulong spapr_rtas_call(PowerPCCPU *cpu, sPAPREnvironment *spapr,
370                              uint32_t token, uint32_t nargs, target_ulong args,
371                              uint32_t nret, target_ulong rets);
372 int spapr_rtas_device_tree_setup(void *fdt, hwaddr rtas_addr,
373                                  hwaddr rtas_size);
374 
375 #define SPAPR_TCE_PAGE_SHIFT   12
376 #define SPAPR_TCE_PAGE_SIZE    (1ULL << SPAPR_TCE_PAGE_SHIFT)
377 #define SPAPR_TCE_PAGE_MASK    (SPAPR_TCE_PAGE_SIZE - 1)
378 
379 #define SPAPR_VIO_BASE_LIOBN    0x00000000
380 #define SPAPR_PCI_BASE_LIOBN    0x80000000
381 
382 #define RTAS_ERROR_LOG_MAX      2048
383 
384 typedef struct sPAPRTCETable sPAPRTCETable;
385 
386 #define TYPE_SPAPR_TCE_TABLE "spapr-tce-table"
387 #define SPAPR_TCE_TABLE(obj) \
388     OBJECT_CHECK(sPAPRTCETable, (obj), TYPE_SPAPR_TCE_TABLE)
389 
390 struct sPAPRTCETable {
391     DeviceState parent;
392     uint32_t liobn;
393     uint32_t window_size;
394     uint32_t nb_table;
395     uint64_t *table;
396     bool bypass;
397     int fd;
398     MemoryRegion iommu;
399     QLIST_ENTRY(sPAPRTCETable) list;
400 };
401 
402 void spapr_events_init(sPAPREnvironment *spapr);
403 void spapr_events_fdt_skel(void *fdt, uint32_t epow_irq);
404 sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn,
405                                    size_t window_size);
406 MemoryRegion *spapr_tce_get_iommu(sPAPRTCETable *tcet);
407 void spapr_tce_set_bypass(sPAPRTCETable *tcet, bool bypass);
408 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
409                  uint32_t liobn, uint64_t window, uint32_t size);
410 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
411                       sPAPRTCETable *tcet);
412 
413 #endif /* !defined (__HW_SPAPR_H__) */
414