xref: /openbmc/qemu/include/hw/ppc/spapr.h (revision 878096ee)
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 struct icp_state;
11 
12 typedef struct sPAPREnvironment {
13     struct VIOsPAPRBus *vio_bus;
14     QLIST_HEAD(, sPAPRPHBState) phbs;
15     struct sPAPRNVRAM *nvram;
16     struct icp_state *icp;
17 
18     hwaddr ram_limit;
19     void *htab;
20     long htab_shift;
21     hwaddr rma_size;
22     int vrma_adjust;
23     hwaddr fdt_addr, rtas_addr;
24     long rtas_size;
25     void *fdt_skel;
26     target_ulong entry_point;
27     int next_irq;
28     int rtc_offset;
29     char *cpu_model;
30     bool has_graphics;
31 
32     uint32_t epow_irq;
33     Notifier epow_notifier;
34 } sPAPREnvironment;
35 
36 #define H_SUCCESS         0
37 #define H_BUSY            1        /* Hardware busy -- retry later */
38 #define H_CLOSED          2        /* Resource closed */
39 #define H_NOT_AVAILABLE   3
40 #define H_CONSTRAINED     4        /* Resource request constrained to max allowed */
41 #define H_PARTIAL         5
42 #define H_IN_PROGRESS     14       /* Kind of like busy */
43 #define H_PAGE_REGISTERED 15
44 #define H_PARTIAL_STORE   16
45 #define H_PENDING         17       /* returned from H_POLL_PENDING */
46 #define H_CONTINUE        18       /* Returned from H_Join on success */
47 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
48 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
49                                                  is a good time to retry */
50 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
51                                                  is a good time to retry */
52 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
53                                                  is a good time to retry */
54 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
55                                                  is a good time to retry */
56 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
57                                                  is a good time to retry */
58 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
59                                                  is a good time to retry */
60 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
61 #define H_HARDWARE        -1       /* Hardware error */
62 #define H_FUNCTION        -2       /* Function not supported */
63 #define H_PRIVILEGE       -3       /* Caller not privileged */
64 #define H_PARAMETER       -4       /* Parameter invalid, out-of-range or conflicting */
65 #define H_BAD_MODE        -5       /* Illegal msr value */
66 #define H_PTEG_FULL       -6       /* PTEG is full */
67 #define H_NOT_FOUND       -7       /* PTE was not found" */
68 #define H_RESERVED_DABR   -8       /* DABR address is reserved by the hypervisor on this processor" */
69 #define H_NO_MEM          -9
70 #define H_AUTHORITY       -10
71 #define H_PERMISSION      -11
72 #define H_DROPPED         -12
73 #define H_SOURCE_PARM     -13
74 #define H_DEST_PARM       -14
75 #define H_REMOTE_PARM     -15
76 #define H_RESOURCE        -16
77 #define H_ADAPTER_PARM    -17
78 #define H_RH_PARM         -18
79 #define H_RCQ_PARM        -19
80 #define H_SCQ_PARM        -20
81 #define H_EQ_PARM         -21
82 #define H_RT_PARM         -22
83 #define H_ST_PARM         -23
84 #define H_SIGT_PARM       -24
85 #define H_TOKEN_PARM      -25
86 #define H_MLENGTH_PARM    -27
87 #define H_MEM_PARM        -28
88 #define H_MEM_ACCESS_PARM -29
89 #define H_ATTR_PARM       -30
90 #define H_PORT_PARM       -31
91 #define H_MCG_PARM        -32
92 #define H_VL_PARM         -33
93 #define H_TSIZE_PARM      -34
94 #define H_TRACE_PARM      -35
95 
96 #define H_MASK_PARM       -37
97 #define H_MCG_FULL        -38
98 #define H_ALIAS_EXIST     -39
99 #define H_P_COUNTER       -40
100 #define H_TABLE_FULL      -41
101 #define H_ALT_TABLE       -42
102 #define H_MR_CONDITION    -43
103 #define H_NOT_ENOUGH_RESOURCES -44
104 #define H_R_STATE         -45
105 #define H_RESCINDEND      -46
106 #define H_MULTI_THREADS_ACTIVE -9005
107 
108 
109 /* Long Busy is a condition that can be returned by the firmware
110  * when a call cannot be completed now, but the identical call
111  * should be retried later.  This prevents calls blocking in the
112  * firmware for long periods of time.  Annoyingly the firmware can return
113  * a range of return codes, hinting at how long we should wait before
114  * retrying.  If you don't care for the hint, the macro below is a good
115  * way to check for the long_busy return codes
116  */
117 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
118                             && (x <= H_LONG_BUSY_END_RANGE))
119 
120 /* Flags */
121 #define H_LARGE_PAGE      (1ULL<<(63-16))
122 #define H_EXACT           (1ULL<<(63-24))       /* Use exact PTE or return H_PTEG_FULL */
123 #define H_R_XLATE         (1ULL<<(63-25))       /* include a valid logical page num in the pte if the valid bit is set */
124 #define H_READ_4          (1ULL<<(63-26))       /* Return 4 PTEs */
125 #define H_PAGE_STATE_CHANGE (1ULL<<(63-28))
126 #define H_PAGE_UNUSED     ((1ULL<<(63-29)) | (1ULL<<(63-30)))
127 #define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
128 #define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1ULL<<(63-31)))
129 #define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
130 #define H_AVPN            (1ULL<<(63-32))       /* An avpn is provided as a sanity test */
131 #define H_ANDCOND         (1ULL<<(63-33))
132 #define H_ICACHE_INVALIDATE (1ULL<<(63-40))     /* icbi, etc.  (ignored for IO pages) */
133 #define H_ICACHE_SYNCHRONIZE (1ULL<<(63-41))    /* dcbst, icbi, etc (ignored for IO pages */
134 #define H_ZERO_PAGE       (1ULL<<(63-48))       /* zero the page before mapping (ignored for IO pages) */
135 #define H_COPY_PAGE       (1ULL<<(63-49))
136 #define H_N               (1ULL<<(63-61))
137 #define H_PP1             (1ULL<<(63-62))
138 #define H_PP2             (1ULL<<(63-63))
139 
140 /* VASI States */
141 #define H_VASI_INVALID    0
142 #define H_VASI_ENABLED    1
143 #define H_VASI_ABORTED    2
144 #define H_VASI_SUSPENDING 3
145 #define H_VASI_SUSPENDED  4
146 #define H_VASI_RESUMED    5
147 #define H_VASI_COMPLETED  6
148 
149 /* DABRX flags */
150 #define H_DABRX_HYPERVISOR (1ULL<<(63-61))
151 #define H_DABRX_KERNEL     (1ULL<<(63-62))
152 #define H_DABRX_USER       (1ULL<<(63-63))
153 
154 /* Each control block has to be on a 4K boundary */
155 #define H_CB_ALIGNMENT     4096
156 
157 /* pSeries hypervisor opcodes */
158 #define H_REMOVE                0x04
159 #define H_ENTER                 0x08
160 #define H_READ                  0x0c
161 #define H_CLEAR_MOD             0x10
162 #define H_CLEAR_REF             0x14
163 #define H_PROTECT               0x18
164 #define H_GET_TCE               0x1c
165 #define H_PUT_TCE               0x20
166 #define H_SET_SPRG0             0x24
167 #define H_SET_DABR              0x28
168 #define H_PAGE_INIT             0x2c
169 #define H_SET_ASR               0x30
170 #define H_ASR_ON                0x34
171 #define H_ASR_OFF               0x38
172 #define H_LOGICAL_CI_LOAD       0x3c
173 #define H_LOGICAL_CI_STORE      0x40
174 #define H_LOGICAL_CACHE_LOAD    0x44
175 #define H_LOGICAL_CACHE_STORE   0x48
176 #define H_LOGICAL_ICBI          0x4c
177 #define H_LOGICAL_DCBF          0x50
178 #define H_GET_TERM_CHAR         0x54
179 #define H_PUT_TERM_CHAR         0x58
180 #define H_REAL_TO_LOGICAL       0x5c
181 #define H_HYPERVISOR_DATA       0x60
182 #define H_EOI                   0x64
183 #define H_CPPR                  0x68
184 #define H_IPI                   0x6c
185 #define H_IPOLL                 0x70
186 #define H_XIRR                  0x74
187 #define H_PERFMON               0x7c
188 #define H_MIGRATE_DMA           0x78
189 #define H_REGISTER_VPA          0xDC
190 #define H_CEDE                  0xE0
191 #define H_CONFER                0xE4
192 #define H_PROD                  0xE8
193 #define H_GET_PPP               0xEC
194 #define H_SET_PPP               0xF0
195 #define H_PURR                  0xF4
196 #define H_PIC                   0xF8
197 #define H_REG_CRQ               0xFC
198 #define H_FREE_CRQ              0x100
199 #define H_VIO_SIGNAL            0x104
200 #define H_SEND_CRQ              0x108
201 #define H_COPY_RDMA             0x110
202 #define H_REGISTER_LOGICAL_LAN  0x114
203 #define H_FREE_LOGICAL_LAN      0x118
204 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
205 #define H_SEND_LOGICAL_LAN      0x120
206 #define H_BULK_REMOVE           0x124
207 #define H_MULTICAST_CTRL        0x130
208 #define H_SET_XDABR             0x134
209 #define H_STUFF_TCE             0x138
210 #define H_PUT_TCE_INDIRECT      0x13C
211 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
212 #define H_VTERM_PARTNER_INFO    0x150
213 #define H_REGISTER_VTERM        0x154
214 #define H_FREE_VTERM            0x158
215 #define H_RESET_EVENTS          0x15C
216 #define H_ALLOC_RESOURCE        0x160
217 #define H_FREE_RESOURCE         0x164
218 #define H_MODIFY_QP             0x168
219 #define H_QUERY_QP              0x16C
220 #define H_REREGISTER_PMR        0x170
221 #define H_REGISTER_SMR          0x174
222 #define H_QUERY_MR              0x178
223 #define H_QUERY_MW              0x17C
224 #define H_QUERY_HCA             0x180
225 #define H_QUERY_PORT            0x184
226 #define H_MODIFY_PORT           0x188
227 #define H_DEFINE_AQP1           0x18C
228 #define H_GET_TRACE_BUFFER      0x190
229 #define H_DEFINE_AQP0           0x194
230 #define H_RESIZE_MR             0x198
231 #define H_ATTACH_MCQP           0x19C
232 #define H_DETACH_MCQP           0x1A0
233 #define H_CREATE_RPT            0x1A4
234 #define H_REMOVE_RPT            0x1A8
235 #define H_REGISTER_RPAGES       0x1AC
236 #define H_DISABLE_AND_GETC      0x1B0
237 #define H_ERROR_DATA            0x1B4
238 #define H_GET_HCA_INFO          0x1B8
239 #define H_GET_PERF_COUNT        0x1BC
240 #define H_MANAGE_TRACE          0x1C0
241 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
242 #define H_QUERY_INT_STATE       0x1E4
243 #define H_POLL_PENDING          0x1D8
244 #define H_ILLAN_ATTRIBUTES      0x244
245 #define H_MODIFY_HEA_QP         0x250
246 #define H_QUERY_HEA_QP          0x254
247 #define H_QUERY_HEA             0x258
248 #define H_QUERY_HEA_PORT        0x25C
249 #define H_MODIFY_HEA_PORT       0x260
250 #define H_REG_BCMC              0x264
251 #define H_DEREG_BCMC            0x268
252 #define H_REGISTER_HEA_RPAGES   0x26C
253 #define H_DISABLE_AND_GET_HEA   0x270
254 #define H_GET_HEA_INFO          0x274
255 #define H_ALLOC_HEA_RESOURCE    0x278
256 #define H_ADD_CONN              0x284
257 #define H_DEL_CONN              0x288
258 #define H_JOIN                  0x298
259 #define H_VASI_STATE            0x2A4
260 #define H_ENABLE_CRQ            0x2B0
261 #define H_GET_EM_PARMS          0x2B8
262 #define H_SET_MPP               0x2D0
263 #define H_GET_MPP               0x2D4
264 #define MAX_HCALL_OPCODE        H_GET_MPP
265 
266 /* The hcalls above are standardized in PAPR and implemented by pHyp
267  * as well.
268  *
269  * We also need some hcalls which are specific to qemu / KVM-on-POWER.
270  * So far we just need one for H_RTAS, but in future we'll need more
271  * for extensions like virtio.  We put those into the 0xf000-0xfffc
272  * range which is reserved by PAPR for "platform-specific" hcalls.
273  */
274 #define KVMPPC_HCALL_BASE       0xf000
275 #define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)
276 #define KVMPPC_H_LOGICAL_MEMOP  (KVMPPC_HCALL_BASE + 0x1)
277 #define KVMPPC_HCALL_MAX        KVMPPC_H_LOGICAL_MEMOP
278 
279 extern sPAPREnvironment *spapr;
280 
281 /*#define DEBUG_SPAPR_HCALLS*/
282 
283 #ifdef DEBUG_SPAPR_HCALLS
284 #define hcall_dprintf(fmt, ...) \
285     do { fprintf(stderr, "%s: " fmt, __func__, ## __VA_ARGS__); } while (0)
286 #else
287 #define hcall_dprintf(fmt, ...) \
288     do { } while (0)
289 #endif
290 
291 typedef target_ulong (*spapr_hcall_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr,
292                                        target_ulong opcode,
293                                        target_ulong *args);
294 
295 void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn);
296 target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
297                              target_ulong *args);
298 
299 int spapr_allocate_irq(int hint, bool lsi);
300 int spapr_allocate_irq_block(int num, bool lsi);
301 
302 static inline int spapr_allocate_msi(int hint)
303 {
304     return spapr_allocate_irq(hint, false);
305 }
306 
307 static inline int spapr_allocate_lsi(int hint)
308 {
309     return spapr_allocate_irq(hint, true);
310 }
311 
312 static inline uint32_t rtas_ld(target_ulong phys, int n)
313 {
314     return ldl_be_phys(phys + 4*n);
315 }
316 
317 static inline void rtas_st(target_ulong phys, int n, uint32_t val)
318 {
319     stl_be_phys(phys + 4*n, val);
320 }
321 
322 typedef void (*spapr_rtas_fn)(sPAPREnvironment *spapr, uint32_t token,
323                               uint32_t nargs, target_ulong args,
324                               uint32_t nret, target_ulong rets);
325 int spapr_rtas_register(const char *name, spapr_rtas_fn fn);
326 target_ulong spapr_rtas_call(sPAPREnvironment *spapr,
327                              uint32_t token, uint32_t nargs, target_ulong args,
328                              uint32_t nret, target_ulong rets);
329 int spapr_rtas_device_tree_setup(void *fdt, hwaddr rtas_addr,
330                                  hwaddr rtas_size);
331 
332 #define SPAPR_TCE_PAGE_SHIFT   12
333 #define SPAPR_TCE_PAGE_SIZE    (1ULL << SPAPR_TCE_PAGE_SHIFT)
334 #define SPAPR_TCE_PAGE_MASK    (SPAPR_TCE_PAGE_SIZE - 1)
335 
336 typedef struct sPAPRTCE {
337     uint64_t tce;
338 } sPAPRTCE;
339 
340 #define SPAPR_VIO_BASE_LIOBN    0x00000000
341 #define SPAPR_PCI_BASE_LIOBN    0x80000000
342 
343 #define RTAS_ERROR_LOG_MAX      2048
344 
345 typedef struct sPAPRTCETable sPAPRTCETable;
346 
347 void spapr_iommu_init(void);
348 void spapr_events_init(sPAPREnvironment *spapr);
349 void spapr_events_fdt_skel(void *fdt, uint32_t epow_irq);
350 sPAPRTCETable *spapr_tce_new_table(uint32_t liobn, size_t window_size);
351 MemoryRegion *spapr_tce_get_iommu(sPAPRTCETable *tcet);
352 void spapr_tce_free(sPAPRTCETable *tcet);
353 void spapr_tce_reset(sPAPRTCETable *tcet);
354 void spapr_tce_set_bypass(sPAPRTCETable *tcet, bool bypass);
355 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
356                  uint32_t liobn, uint64_t window, uint32_t size);
357 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
358                       sPAPRTCETable *tcet);
359 
360 #endif /* !defined (__HW_SPAPR_H__) */
361