This source file includes following definitions.
- cxl_adapter_link_ok
- _cxl_p1_addr
- cxl_p1_write
- cxl_p1_read
- _cxl_p1n_addr
- cxl_p1n_write
- cxl_p1n_read
- _cxl_p2n_addr
- cxl_p2n_write
- cxl_p2n_read
- cxl_is_power8
- cxl_is_power9
- cxl_debugfs_init
- cxl_debugfs_exit
- cxl_debugfs_adapter_add
- cxl_debugfs_adapter_remove
- cxl_debugfs_afu_add
- cxl_debugfs_afu_remove
- cxl_debugfs_add_adapter_regs_psl9
- cxl_debugfs_add_adapter_regs_psl8
- cxl_debugfs_add_afu_regs_psl9
- cxl_debugfs_add_afu_regs_psl8
1
2
3
4
5
6 #ifndef _CXL_H_
7 #define _CXL_H_
8
9 #include <linux/interrupt.h>
10 #include <linux/semaphore.h>
11 #include <linux/device.h>
12 #include <linux/types.h>
13 #include <linux/cdev.h>
14 #include <linux/pid.h>
15 #include <linux/io.h>
16 #include <linux/pci.h>
17 #include <linux/fs.h>
18 #include <asm/cputable.h>
19 #include <asm/mmu.h>
20 #include <asm/reg.h>
21 #include <misc/cxl-base.h>
22
23 #include <misc/cxl.h>
24 #include <uapi/misc/cxl.h>
25
26 extern uint cxl_verbose;
27
28 #define CXL_TIMEOUT 5
29
30
31
32
33
34 #define CXL_API_VERSION 3
35 #define CXL_API_VERSION_COMPATIBLE 1
36
37
38
39
40
41
42
43
44
45
46
47 typedef struct {
48 const int x;
49 } cxl_p1_reg_t;
50 typedef struct {
51 const int x;
52 } cxl_p1n_reg_t;
53 typedef struct {
54 const int x;
55 } cxl_p2n_reg_t;
56 #define cxl_reg_off(reg) \
57 (reg.x)
58
59
60
61
62
63 static const cxl_p1_reg_t CXL_PSL_CtxTime = {0x0000};
64 static const cxl_p1_reg_t CXL_PSL_ErrIVTE = {0x0008};
65 static const cxl_p1_reg_t CXL_PSL_KEY1 = {0x0010};
66 static const cxl_p1_reg_t CXL_PSL_KEY2 = {0x0018};
67 static const cxl_p1_reg_t CXL_PSL_Control = {0x0020};
68
69 static const cxl_p1_reg_t CXL_PSL_DLCNTL = {0x0060};
70 static const cxl_p1_reg_t CXL_PSL_DLADDR = {0x0068};
71
72
73 static const cxl_p1_reg_t CXL_PSL_LBISEL = {0x0080};
74 static const cxl_p1_reg_t CXL_PSL_SLBIE = {0x0088};
75 static const cxl_p1_reg_t CXL_PSL_SLBIA = {0x0090};
76 static const cxl_p1_reg_t CXL_PSL_TLBIE = {0x00A0};
77 static const cxl_p1_reg_t CXL_PSL_TLBIA = {0x00A8};
78 static const cxl_p1_reg_t CXL_PSL_AFUSEL = {0x00B0};
79
80
81
82 static const cxl_p1_reg_t CXL_PSL_FIR1 = {0x0100};
83 static const cxl_p1_reg_t CXL_PSL_FIR2 = {0x0108};
84 static const cxl_p1_reg_t CXL_PSL_Timebase = {0x0110};
85 static const cxl_p1_reg_t CXL_PSL_VERSION = {0x0118};
86 static const cxl_p1_reg_t CXL_PSL_RESLCKTO = {0x0128};
87 static const cxl_p1_reg_t CXL_PSL_TB_CTLSTAT = {0x0140};
88 static const cxl_p1_reg_t CXL_PSL_FIR_CNTL = {0x0148};
89 static const cxl_p1_reg_t CXL_PSL_DSNDCTL = {0x0150};
90 static const cxl_p1_reg_t CXL_PSL_SNWRALLOC = {0x0158};
91 static const cxl_p1_reg_t CXL_PSL_TRACE = {0x0170};
92
93 static const cxl_p1_reg_t CXL_PSL9_CONTROL = {0x0020};
94 static const cxl_p1_reg_t CXL_XSL9_INV = {0x0110};
95 static const cxl_p1_reg_t CXL_XSL9_DBG = {0x0130};
96 static const cxl_p1_reg_t CXL_XSL9_DEF = {0x0140};
97 static const cxl_p1_reg_t CXL_XSL9_DSNCTL = {0x0168};
98 static const cxl_p1_reg_t CXL_PSL9_FIR1 = {0x0300};
99 static const cxl_p1_reg_t CXL_PSL9_FIR_MASK = {0x0308};
100 static const cxl_p1_reg_t CXL_PSL9_Timebase = {0x0310};
101 static const cxl_p1_reg_t CXL_PSL9_DEBUG = {0x0320};
102 static const cxl_p1_reg_t CXL_PSL9_FIR_CNTL = {0x0348};
103 static const cxl_p1_reg_t CXL_PSL9_DSNDCTL = {0x0350};
104 static const cxl_p1_reg_t CXL_PSL9_TB_CTLSTAT = {0x0340};
105 static const cxl_p1_reg_t CXL_PSL9_TRACECFG = {0x0368};
106 static const cxl_p1_reg_t CXL_PSL9_APCDEDALLOC = {0x0378};
107 static const cxl_p1_reg_t CXL_PSL9_APCDEDTYPE = {0x0380};
108 static const cxl_p1_reg_t CXL_PSL9_TNR_ADDR = {0x0388};
109 static const cxl_p1_reg_t CXL_PSL9_CTCCFG = {0x0390};
110 static const cxl_p1_reg_t CXL_PSL9_GP_CT = {0x0398};
111 static const cxl_p1_reg_t CXL_XSL9_IERAT = {0x0588};
112 static const cxl_p1_reg_t CXL_XSL9_ILPP = {0x0590};
113
114
115
116
117
118
119 static const cxl_p1n_reg_t CXL_PSL_SR_An = {0x00};
120 static const cxl_p1n_reg_t CXL_PSL_LPID_An = {0x08};
121 static const cxl_p1n_reg_t CXL_PSL_AMBAR_An = {0x10};
122 static const cxl_p1n_reg_t CXL_PSL_SPOffset_An = {0x18};
123 static const cxl_p1n_reg_t CXL_PSL_ID_An = {0x20};
124 static const cxl_p1n_reg_t CXL_PSL_SERR_An = {0x28};
125
126 static const cxl_p1n_reg_t CXL_PSL_SDR_An = {0x30};
127
128 static const cxl_p1n_reg_t CXL_PSL_AMOR_An = {0x38};
129
130 static const cxl_p1n_reg_t CXL_HAURP_An = {0x80};
131 static const cxl_p1n_reg_t CXL_PSL_SPAP_An = {0x88};
132 static const cxl_p1n_reg_t CXL_PSL_LLCMD_An = {0x90};
133
134 static const cxl_p1n_reg_t CXL_PSL_SCNTL_An = {0xA0};
135 static const cxl_p1n_reg_t CXL_PSL_CtxTime_An = {0xA8};
136 static const cxl_p1n_reg_t CXL_PSL_IVTE_Offset_An = {0xB0};
137 static const cxl_p1n_reg_t CXL_PSL_IVTE_Limit_An = {0xB8};
138
139 static const cxl_p1n_reg_t CXL_PSL_FIR_SLICE_An = {0xC0};
140 static const cxl_p1n_reg_t CXL_AFU_DEBUG_An = {0xC8};
141
142 static const cxl_p1n_reg_t CXL_PSL_APCALLOC_A = {0xD0};
143 static const cxl_p1n_reg_t CXL_PSL_COALLOC_A = {0xD8};
144 static const cxl_p1n_reg_t CXL_PSL_RXCTL_A = {0xE0};
145 static const cxl_p1n_reg_t CXL_PSL_SLICE_TRACE = {0xE8};
146
147
148
149 static const cxl_p2n_reg_t CXL_PSL_PID_TID_An = {0x000};
150 static const cxl_p2n_reg_t CXL_CSRP_An = {0x008};
151
152 static const cxl_p2n_reg_t CXL_AURP0_An = {0x010};
153 static const cxl_p2n_reg_t CXL_AURP1_An = {0x018};
154 static const cxl_p2n_reg_t CXL_SSTP0_An = {0x020};
155 static const cxl_p2n_reg_t CXL_SSTP1_An = {0x028};
156
157 static const cxl_p2n_reg_t CXL_PSL_AMR_An = {0x030};
158
159 static const cxl_p2n_reg_t CXL_SLBIE_An = {0x040};
160 static const cxl_p2n_reg_t CXL_SLBIA_An = {0x048};
161 static const cxl_p2n_reg_t CXL_SLBI_Select_An = {0x050};
162
163 static const cxl_p2n_reg_t CXL_PSL_DSISR_An = {0x060};
164 static const cxl_p2n_reg_t CXL_PSL_DAR_An = {0x068};
165 static const cxl_p2n_reg_t CXL_PSL_DSR_An = {0x070};
166 static const cxl_p2n_reg_t CXL_PSL_TFC_An = {0x078};
167 static const cxl_p2n_reg_t CXL_PSL_PEHandle_An = {0x080};
168 static const cxl_p2n_reg_t CXL_PSL_ErrStat_An = {0x088};
169
170 static const cxl_p2n_reg_t CXL_AFU_Cntl_An = {0x090};
171 static const cxl_p2n_reg_t CXL_AFU_ERR_An = {0x098};
172
173 static const cxl_p2n_reg_t CXL_PSL_WED_An = {0x0A0};
174
175
176 #define CXL_PSL_SPAP_Addr 0x0ffffffffffff000ULL
177 #define CXL_PSL_SPAP_Size 0x0000000000000ff0ULL
178 #define CXL_PSL_SPAP_Size_Shift 4
179 #define CXL_PSL_SPAP_V 0x0000000000000001ULL
180
181
182 #define CXL_PSL_Control_tb (0x1ull << (63-63))
183 #define CXL_PSL_Control_Fr (0x1ull << (63-31))
184 #define CXL_PSL_Control_Fs_MASK (0x3ull << (63-29))
185 #define CXL_PSL_Control_Fs_Complete (0x3ull << (63-29))
186
187
188 #define CXL_PSL_DLCNTL_D (0x1ull << (63-28))
189 #define CXL_PSL_DLCNTL_C (0x1ull << (63-29))
190 #define CXL_PSL_DLCNTL_E (0x1ull << (63-30))
191 #define CXL_PSL_DLCNTL_S (0x1ull << (63-31))
192 #define CXL_PSL_DLCNTL_CE (CXL_PSL_DLCNTL_C | CXL_PSL_DLCNTL_E)
193 #define CXL_PSL_DLCNTL_DCES (CXL_PSL_DLCNTL_D | CXL_PSL_DLCNTL_CE | CXL_PSL_DLCNTL_S)
194
195
196 #define CXL_PSL_SR_An_SF MSR_SF
197 #define CXL_PSL_SR_An_TA (1ull << (63-1))
198 #define CXL_PSL_SR_An_HV MSR_HV
199 #define CXL_PSL_SR_An_XLAT_hpt (0ull << (63-6))
200 #define CXL_PSL_SR_An_XLAT_roh (2ull << (63-6))
201 #define CXL_PSL_SR_An_XLAT_ror (3ull << (63-6))
202 #define CXL_PSL_SR_An_BOT (1ull << (63-10))
203 #define CXL_PSL_SR_An_PR MSR_PR
204 #define CXL_PSL_SR_An_ISL (1ull << (63-53))
205 #define CXL_PSL_SR_An_TC (1ull << (63-54))
206 #define CXL_PSL_SR_An_US (1ull << (63-56))
207 #define CXL_PSL_SR_An_SC (1ull << (63-58))
208 #define CXL_PSL_SR_An_R MSR_DR
209 #define CXL_PSL_SR_An_MP (1ull << (63-62))
210 #define CXL_PSL_SR_An_LE (1ull << (63-63))
211
212
213 #define CXL_PSL_ID_An_F (1ull << (63-31))
214 #define CXL_PSL_ID_An_L (1ull << (63-30))
215
216
217 #define CXL_PSL_SERR_An_afuto (1ull << (63-0))
218 #define CXL_PSL_SERR_An_afudis (1ull << (63-1))
219 #define CXL_PSL_SERR_An_afuov (1ull << (63-2))
220 #define CXL_PSL_SERR_An_badsrc (1ull << (63-3))
221 #define CXL_PSL_SERR_An_badctx (1ull << (63-4))
222 #define CXL_PSL_SERR_An_llcmdis (1ull << (63-5))
223 #define CXL_PSL_SERR_An_llcmdto (1ull << (63-6))
224 #define CXL_PSL_SERR_An_afupar (1ull << (63-7))
225 #define CXL_PSL_SERR_An_afudup (1ull << (63-8))
226 #define CXL_PSL_SERR_An_IRQS ( \
227 CXL_PSL_SERR_An_afuto | CXL_PSL_SERR_An_afudis | CXL_PSL_SERR_An_afuov | \
228 CXL_PSL_SERR_An_badsrc | CXL_PSL_SERR_An_badctx | CXL_PSL_SERR_An_llcmdis | \
229 CXL_PSL_SERR_An_llcmdto | CXL_PSL_SERR_An_afupar | CXL_PSL_SERR_An_afudup)
230 #define CXL_PSL_SERR_An_afuto_mask (1ull << (63-32))
231 #define CXL_PSL_SERR_An_afudis_mask (1ull << (63-33))
232 #define CXL_PSL_SERR_An_afuov_mask (1ull << (63-34))
233 #define CXL_PSL_SERR_An_badsrc_mask (1ull << (63-35))
234 #define CXL_PSL_SERR_An_badctx_mask (1ull << (63-36))
235 #define CXL_PSL_SERR_An_llcmdis_mask (1ull << (63-37))
236 #define CXL_PSL_SERR_An_llcmdto_mask (1ull << (63-38))
237 #define CXL_PSL_SERR_An_afupar_mask (1ull << (63-39))
238 #define CXL_PSL_SERR_An_afudup_mask (1ull << (63-40))
239 #define CXL_PSL_SERR_An_IRQ_MASKS ( \
240 CXL_PSL_SERR_An_afuto_mask | CXL_PSL_SERR_An_afudis_mask | CXL_PSL_SERR_An_afuov_mask | \
241 CXL_PSL_SERR_An_badsrc_mask | CXL_PSL_SERR_An_badctx_mask | CXL_PSL_SERR_An_llcmdis_mask | \
242 CXL_PSL_SERR_An_llcmdto_mask | CXL_PSL_SERR_An_afupar_mask | CXL_PSL_SERR_An_afudup_mask)
243
244 #define CXL_PSL_SERR_An_AE (1ull << (63-30))
245
246
247 #define CXL_PSL_SCNTL_An_CR (0x1ull << (63-15))
248
249 #define CXL_PSL_SCNTL_An_PM_MASK (0xffffull << (63-31))
250 #define CXL_PSL_SCNTL_An_PM_Shared (0x0000ull << (63-31))
251 #define CXL_PSL_SCNTL_An_PM_OS (0x0001ull << (63-31))
252 #define CXL_PSL_SCNTL_An_PM_Process (0x0002ull << (63-31))
253 #define CXL_PSL_SCNTL_An_PM_AFU (0x0004ull << (63-31))
254 #define CXL_PSL_SCNTL_An_PM_AFU_PBT (0x0104ull << (63-31))
255
256 #define CXL_PSL_SCNTL_An_Ps_MASK (0x3ull << (63-39))
257 #define CXL_PSL_SCNTL_An_Ps_Pending (0x1ull << (63-39))
258 #define CXL_PSL_SCNTL_An_Ps_Complete (0x3ull << (63-39))
259
260 #define CXL_PSL_SCNTL_An_Pc (0x1ull << (63-48))
261
262 #define CXL_PSL_SCNTL_An_Ss_MASK (0x3ull << (63-55))
263 #define CXL_PSL_SCNTL_An_Ss_Pending (0x1ull << (63-55))
264 #define CXL_PSL_SCNTL_An_Ss_Complete (0x3ull << (63-55))
265
266 #define CXL_PSL_SCNTL_An_Sc (0x1ull << (63-63))
267
268
269 #define CXL_AFU_Cntl_An_ES_MASK (0x7ull << (63-2))
270 #define CXL_AFU_Cntl_An_ES_Disabled (0x0ull << (63-2))
271 #define CXL_AFU_Cntl_An_ES_Enabled (0x4ull << (63-2))
272
273 #define CXL_AFU_Cntl_An_E (0x1ull << (63-3))
274
275 #define CXL_AFU_Cntl_An_RS_MASK (0x3ull << (63-5))
276 #define CXL_AFU_Cntl_An_RS_Pending (0x1ull << (63-5))
277 #define CXL_AFU_Cntl_An_RS_Complete (0x2ull << (63-5))
278
279 #define CXL_AFU_Cntl_An_RA (0x1ull << (63-7))
280
281
282
283 #define CXL_SSTP0_An_B_SHIFT SLB_VSID_SSIZE_SHIFT
284 #define CXL_SSTP0_An_KS (1ull << (63-2))
285 #define CXL_SSTP0_An_KP (1ull << (63-3))
286 #define CXL_SSTP0_An_N (1ull << (63-4))
287 #define CXL_SSTP0_An_L (1ull << (63-5))
288 #define CXL_SSTP0_An_C (1ull << (63-6))
289 #define CXL_SSTP0_An_TA (1ull << (63-7))
290 #define CXL_SSTP0_An_LP_SHIFT (63-9)
291
292 #define CXL_SSTP0_An_SegTableSize_SHIFT (63-31)
293 #define CXL_SSTP0_An_SegTableSize_MASK \
294 (((1ull << 12) - 1) << CXL_SSTP0_An_SegTableSize_SHIFT)
295 #define CXL_SSTP0_An_STVA_U_MASK ((1ull << (63-49))-1)
296 #define CXL_SSTP1_An_STVA_L_MASK (~((1ull << (63-55))-1))
297 #define CXL_SSTP1_An_V (1ull << (63-63))
298
299
300
301 #define CXL_SLBIE_C PPC_BIT(36)
302 #define CXL_SLBIE_SS PPC_BITMASK(37, 38)
303 #define CXL_SLBIE_SS_SHIFT PPC_BITLSHIFT(38)
304 #define CXL_SLBIE_TA PPC_BIT(38)
305
306 #define CXL_SLBIE_MAX PPC_BITMASK(24, 31)
307 #define CXL_SLBIE_PENDING PPC_BITMASK(56, 63)
308
309
310 #define CXL_TLB_SLB_P (1ull)
311
312
313 #define CXL_TLB_SLB_IQ_ALL (0ull)
314 #define CXL_TLB_SLB_IQ_LPID (1ull)
315 #define CXL_TLB_SLB_IQ_LPIDPID (3ull)
316
317
318 #define CXL_PSL_AFUSEL_A (1ull << (63-55))
319
320
321 #define CXL_PSL_DSISR_An_DS (1ull << (63-0))
322 #define CXL_PSL_DSISR_An_DM (1ull << (63-1))
323 #define CXL_PSL_DSISR_An_ST (1ull << (63-2))
324 #define CXL_PSL_DSISR_An_UR (1ull << (63-3))
325 #define CXL_PSL_DSISR_TRANS (CXL_PSL_DSISR_An_DS | CXL_PSL_DSISR_An_DM | CXL_PSL_DSISR_An_ST | CXL_PSL_DSISR_An_UR)
326 #define CXL_PSL_DSISR_An_PE (1ull << (63-4))
327 #define CXL_PSL_DSISR_An_AE (1ull << (63-5))
328 #define CXL_PSL_DSISR_An_OC (1ull << (63-6))
329 #define CXL_PSL_DSISR_PENDING (CXL_PSL_DSISR_TRANS | CXL_PSL_DSISR_An_PE | CXL_PSL_DSISR_An_AE | CXL_PSL_DSISR_An_OC)
330
331 #define CXL_PSL_DSISR_An_M DSISR_NOHPTE
332 #define CXL_PSL_DSISR_An_P DSISR_PROTFAULT
333 #define CXL_PSL_DSISR_An_A (1ull << (63-37))
334 #define CXL_PSL_DSISR_An_S DSISR_ISSTORE
335 #define CXL_PSL_DSISR_An_K DSISR_KEYFAULT
336
337
338 #define CXL_PSL9_DSISR_An_TF (1ull << (63-3))
339 #define CXL_PSL9_DSISR_An_PE (1ull << (63-4))
340 #define CXL_PSL9_DSISR_An_AE (1ull << (63-5))
341 #define CXL_PSL9_DSISR_An_OC (1ull << (63-6))
342 #define CXL_PSL9_DSISR_An_S (1ull << (63-38))
343 #define CXL_PSL9_DSISR_PENDING (CXL_PSL9_DSISR_An_TF | CXL_PSL9_DSISR_An_PE | CXL_PSL9_DSISR_An_AE | CXL_PSL9_DSISR_An_OC)
344
345
346
347
348 #define CXL_PSL9_DSISR_An_CO_MASK 0x00000000000000ffULL
349 #define CXL_PSL9_DSISR_An_SF 0x0000000000000080ULL
350 #define CXL_PSL9_DSISR_An_PF_SLR 0x0000000000000088ULL
351 #define CXL_PSL9_DSISR_An_PF_RGC 0x000000000000008CULL
352 #define CXL_PSL9_DSISR_An_PF_RGP 0x0000000000000090ULL
353 #define CXL_PSL9_DSISR_An_PF_HRH 0x0000000000000094ULL
354 #define CXL_PSL9_DSISR_An_PF_STEG 0x000000000000009CULL
355 #define CXL_PSL9_DSISR_An_URTCH 0x00000000000000B4ULL
356
357
358 #define CXL_PSL_TFC_An_A (1ull << (63-28))
359 #define CXL_PSL_TFC_An_C (1ull << (63-29))
360 #define CXL_PSL_TFC_An_AE (1ull << (63-30))
361 #define CXL_PSL_TFC_An_R (1ull << (63-31))
362
363
364 #define CXL_PSL_DEBUG_CDC (1ull << (63-27))
365
366
367 #define CXL_XSL9_IERAT_MLPID (1ull << (63-0))
368 #define CXL_XSL9_IERAT_MPID (1ull << (63-1))
369 #define CXL_XSL9_IERAT_PRS (1ull << (63-4))
370 #define CXL_XSL9_IERAT_INVR (1ull << (63-3))
371 #define CXL_XSL9_IERAT_IALL (1ull << (63-8))
372 #define CXL_XSL9_IERAT_IINPROG (1ull << (63-63))
373
374
375 #define CXL_PE_SOFTWARE_STATE_V (1ul << (31 - 0))
376 #define CXL_PE_SOFTWARE_STATE_C (1ul << (31 - 29))
377 #define CXL_PE_SOFTWARE_STATE_S (1ul << (31 - 30))
378 #define CXL_PE_SOFTWARE_STATE_T (1ul << (31 - 31))
379
380
381
382
383
384
385 #define CXL_PSL_RXCTL_AFUHP_4S 0x7000000000000000ULL
386
387
388 #define CXL_SPA_SW_CMD_MASK 0xffff000000000000ULL
389 #define CXL_SPA_SW_CMD_TERMINATE 0x0001000000000000ULL
390 #define CXL_SPA_SW_CMD_REMOVE 0x0002000000000000ULL
391 #define CXL_SPA_SW_CMD_SUSPEND 0x0003000000000000ULL
392 #define CXL_SPA_SW_CMD_RESUME 0x0004000000000000ULL
393 #define CXL_SPA_SW_CMD_ADD 0x0005000000000000ULL
394 #define CXL_SPA_SW_CMD_UPDATE 0x0006000000000000ULL
395 #define CXL_SPA_SW_STATE_MASK 0x0000ffff00000000ULL
396 #define CXL_SPA_SW_STATE_TERMINATED 0x0000000100000000ULL
397 #define CXL_SPA_SW_STATE_REMOVED 0x0000000200000000ULL
398 #define CXL_SPA_SW_STATE_SUSPENDED 0x0000000300000000ULL
399 #define CXL_SPA_SW_STATE_RESUMED 0x0000000400000000ULL
400 #define CXL_SPA_SW_STATE_ADDED 0x0000000500000000ULL
401 #define CXL_SPA_SW_STATE_UPDATED 0x0000000600000000ULL
402 #define CXL_SPA_SW_PSL_ID_MASK 0x00000000ffff0000ULL
403 #define CXL_SPA_SW_LINK_MASK 0x000000000000ffffULL
404
405 #define CXL_MAX_SLICES 4
406 #define MAX_AFU_MMIO_REGS 3
407
408 #define CXL_MODE_TIME_SLICED 0x4
409 #define CXL_SUPPORTED_MODES (CXL_MODE_DEDICATED | CXL_MODE_DIRECTED)
410
411 #define CXL_DEV_MINORS 13
412 #define CXL_CARD_MINOR(adapter) (adapter->adapter_num * CXL_DEV_MINORS)
413 #define CXL_DEVT_ADAPTER(dev) (MINOR(dev) / CXL_DEV_MINORS)
414
415 #define CXL_PSL9_TRACEID_MAX 0xAU
416 #define CXL_PSL9_TRACESTATE_FIN 0x3U
417
418 enum cxl_context_status {
419 CLOSED,
420 OPENED,
421 STARTED
422 };
423
424 enum prefault_modes {
425 CXL_PREFAULT_NONE,
426 CXL_PREFAULT_WED,
427 CXL_PREFAULT_ALL,
428 };
429
430 enum cxl_attrs {
431 CXL_ADAPTER_ATTRS,
432 CXL_AFU_MASTER_ATTRS,
433 CXL_AFU_ATTRS,
434 };
435
436 struct cxl_sste {
437 __be64 esid_data;
438 __be64 vsid_data;
439 };
440
441 #define to_cxl_adapter(d) container_of(d, struct cxl, dev)
442 #define to_cxl_afu(d) container_of(d, struct cxl_afu, dev)
443
444 struct cxl_afu_native {
445 void __iomem *p1n_mmio;
446 void __iomem *afu_desc_mmio;
447 irq_hw_number_t psl_hwirq;
448 unsigned int psl_virq;
449 struct mutex spa_mutex;
450
451
452
453
454
455
456 struct cxl_process_element *spa;
457 __be64 *sw_command_status;
458 unsigned int spa_size;
459 int spa_order;
460 int spa_max_procs;
461 u64 pp_offset;
462 };
463
464 struct cxl_afu_guest {
465 struct cxl_afu *parent;
466 u64 handle;
467 phys_addr_t p2n_phys;
468 u64 p2n_size;
469 int max_ints;
470 bool handle_err;
471 struct delayed_work work_err;
472 int previous_state;
473 };
474
475 struct cxl_afu {
476 struct cxl_afu_native *native;
477 struct cxl_afu_guest *guest;
478 irq_hw_number_t serr_hwirq;
479 unsigned int serr_virq;
480 char *psl_irq_name;
481 char *err_irq_name;
482 void __iomem *p2n_mmio;
483 phys_addr_t psn_phys;
484 u64 pp_size;
485
486 struct cxl *adapter;
487 struct device dev;
488 struct cdev afu_cdev_s, afu_cdev_m, afu_cdev_d;
489 struct device *chardev_s, *chardev_m, *chardev_d;
490 struct idr contexts_idr;
491 struct dentry *debugfs;
492 struct mutex contexts_lock;
493 spinlock_t afu_cntl_lock;
494
495
496 atomic_t configured_state;
497
498
499 u64 eb_len, eb_offset;
500 struct bin_attribute attr_eb;
501
502
503 struct pci_controller *phb;
504
505 int pp_irqs;
506 int irqs_max;
507 int num_procs;
508 int max_procs_virtualised;
509 int slice;
510 int modes_supported;
511 int current_mode;
512 int crs_num;
513 u64 crs_len;
514 u64 crs_offset;
515 struct list_head crs;
516 enum prefault_modes prefault_mode;
517 bool psa;
518 bool pp_psa;
519 bool enabled;
520 };
521
522
523 struct cxl_irq_name {
524 struct list_head list;
525 char *name;
526 };
527
528 struct irq_avail {
529 irq_hw_number_t offset;
530 irq_hw_number_t range;
531 unsigned long *bitmap;
532 };
533
534
535
536
537
538 struct cxl_context {
539 struct cxl_afu *afu;
540
541
542 phys_addr_t psn_phys;
543 u64 psn_size;
544
545
546 struct address_space *mapping;
547 struct mutex mapping_lock;
548 struct page *ff_page;
549 bool mmio_err_ff;
550 bool kernelapi;
551
552 spinlock_t sste_lock;
553 struct cxl_sste *sstp;
554 u64 sstp0, sstp1;
555 unsigned int sst_size, sst_lru;
556
557 wait_queue_head_t wq;
558
559 struct pid *pid;
560 spinlock_t lock;
561
562 u64 process_token;
563
564
565 void *priv;
566
567 unsigned long *irq_bitmap;
568 struct cxl_irq_ranges irqs;
569 struct list_head irq_names;
570 u64 fault_addr;
571 u64 fault_dsisr;
572 u64 afu_err;
573
574
575
576
577
578
579 enum cxl_context_status status;
580 struct mutex status_mutex;
581
582
583
584 struct work_struct fault_work;
585 u64 dsisr;
586 u64 dar;
587
588 struct cxl_process_element *elem;
589
590
591
592
593
594
595
596
597
598
599
600 int pe;
601 int external_pe;
602
603 u32 irq_count;
604 bool pe_inserted;
605 bool master;
606 bool kernel;
607 bool pending_irq;
608 bool pending_fault;
609 bool pending_afu_err;
610
611
612 struct cxl_afu_driver_ops *afu_driver_ops;
613 atomic_t afu_driver_events;
614
615 struct rcu_head rcu;
616
617 struct mm_struct *mm;
618
619 u16 tidr;
620 bool assign_tidr;
621 };
622
623 struct cxl_irq_info;
624
625 struct cxl_service_layer_ops {
626 int (*adapter_regs_init)(struct cxl *adapter, struct pci_dev *dev);
627 int (*invalidate_all)(struct cxl *adapter);
628 int (*afu_regs_init)(struct cxl_afu *afu);
629 int (*sanitise_afu_regs)(struct cxl_afu *afu);
630 int (*register_serr_irq)(struct cxl_afu *afu);
631 void (*release_serr_irq)(struct cxl_afu *afu);
632 irqreturn_t (*handle_interrupt)(int irq, struct cxl_context *ctx, struct cxl_irq_info *irq_info);
633 irqreturn_t (*fail_irq)(struct cxl_afu *afu, struct cxl_irq_info *irq_info);
634 int (*activate_dedicated_process)(struct cxl_afu *afu);
635 int (*attach_afu_directed)(struct cxl_context *ctx, u64 wed, u64 amr);
636 int (*attach_dedicated_process)(struct cxl_context *ctx, u64 wed, u64 amr);
637 void (*update_dedicated_ivtes)(struct cxl_context *ctx);
638 void (*debugfs_add_adapter_regs)(struct cxl *adapter, struct dentry *dir);
639 void (*debugfs_add_afu_regs)(struct cxl_afu *afu, struct dentry *dir);
640 void (*psl_irq_dump_registers)(struct cxl_context *ctx);
641 void (*err_irq_dump_registers)(struct cxl *adapter);
642 void (*debugfs_stop_trace)(struct cxl *adapter);
643 void (*write_timebase_ctrl)(struct cxl *adapter);
644 u64 (*timebase_read)(struct cxl *adapter);
645 int capi_mode;
646 bool needs_reset_before_disable;
647 };
648
649 struct cxl_native {
650 u64 afu_desc_off;
651 u64 afu_desc_size;
652 void __iomem *p1_mmio;
653 void __iomem *p2_mmio;
654 irq_hw_number_t err_hwirq;
655 unsigned int err_virq;
656 u64 ps_off;
657 bool no_data_cache;
658 const struct cxl_service_layer_ops *sl_ops;
659 };
660
661 struct cxl_guest {
662 struct platform_device *pdev;
663 int irq_nranges;
664 struct cdev cdev;
665 irq_hw_number_t irq_base_offset;
666 struct irq_avail *irq_avail;
667 spinlock_t irq_alloc_lock;
668 u64 handle;
669 char *status;
670 u16 vendor;
671 u16 device;
672 u16 subsystem_vendor;
673 u16 subsystem;
674 };
675
676 struct cxl {
677 struct cxl_native *native;
678 struct cxl_guest *guest;
679 spinlock_t afu_list_lock;
680 struct cxl_afu *afu[CXL_MAX_SLICES];
681 struct device dev;
682 struct dentry *trace;
683 struct dentry *psl_err_chk;
684 struct dentry *debugfs;
685 char *irq_name;
686 struct bin_attribute cxl_attr;
687 int adapter_num;
688 int user_irqs;
689 u64 ps_size;
690 u16 psl_rev;
691 u16 base_image;
692 u8 vsec_status;
693 u8 caia_major;
694 u8 caia_minor;
695 u8 slices;
696 bool user_image_loaded;
697 bool perst_loads_image;
698 bool perst_select_user;
699 bool perst_same_image;
700 bool psl_timebase_synced;
701 bool tunneled_ops_supported;
702
703
704
705
706
707
708
709 atomic_t contexts_num;
710 };
711
712 int cxl_pci_alloc_one_irq(struct cxl *adapter);
713 void cxl_pci_release_one_irq(struct cxl *adapter, int hwirq);
714 int cxl_pci_alloc_irq_ranges(struct cxl_irq_ranges *irqs, struct cxl *adapter, unsigned int num);
715 void cxl_pci_release_irq_ranges(struct cxl_irq_ranges *irqs, struct cxl *adapter);
716 int cxl_pci_setup_irq(struct cxl *adapter, unsigned int hwirq, unsigned int virq);
717 int cxl_update_image_control(struct cxl *adapter);
718 int cxl_pci_reset(struct cxl *adapter);
719 void cxl_pci_release_afu(struct device *dev);
720 ssize_t cxl_pci_read_adapter_vpd(struct cxl *adapter, void *buf, size_t len);
721
722
723 struct cxl_process_element_common {
724 __be32 tid;
725 __be32 pid;
726 __be64 csrp;
727 union {
728 struct {
729 __be64 aurp0;
730 __be64 aurp1;
731 __be64 sstp0;
732 __be64 sstp1;
733 } psl8;
734 struct {
735 u8 reserved2[8];
736 u8 reserved3[8];
737 u8 reserved4[8];
738 u8 reserved5[8];
739 } psl9;
740 } u;
741 __be64 amr;
742 u8 reserved6[4];
743 __be64 wed;
744 } __packed;
745
746
747 struct cxl_process_element {
748 __be64 sr;
749 __be64 SPOffset;
750 union {
751 __be64 sdr;
752 u8 reserved1[8];
753 } u;
754 __be64 haurp;
755 __be32 ctxtime;
756 __be16 ivte_offsets[4];
757 __be16 ivte_ranges[4];
758 __be32 lpid;
759 struct cxl_process_element_common common;
760 __be32 software_state;
761 } __packed;
762
763 static inline bool cxl_adapter_link_ok(struct cxl *cxl, struct cxl_afu *afu)
764 {
765 struct pci_dev *pdev;
766
767 if (cpu_has_feature(CPU_FTR_HVMODE)) {
768 pdev = to_pci_dev(cxl->dev.parent);
769 return !pci_channel_offline(pdev);
770 }
771 return true;
772 }
773
774 static inline void __iomem *_cxl_p1_addr(struct cxl *cxl, cxl_p1_reg_t reg)
775 {
776 WARN_ON(!cpu_has_feature(CPU_FTR_HVMODE));
777 return cxl->native->p1_mmio + cxl_reg_off(reg);
778 }
779
780 static inline void cxl_p1_write(struct cxl *cxl, cxl_p1_reg_t reg, u64 val)
781 {
782 if (likely(cxl_adapter_link_ok(cxl, NULL)))
783 out_be64(_cxl_p1_addr(cxl, reg), val);
784 }
785
786 static inline u64 cxl_p1_read(struct cxl *cxl, cxl_p1_reg_t reg)
787 {
788 if (likely(cxl_adapter_link_ok(cxl, NULL)))
789 return in_be64(_cxl_p1_addr(cxl, reg));
790 else
791 return ~0ULL;
792 }
793
794 static inline void __iomem *_cxl_p1n_addr(struct cxl_afu *afu, cxl_p1n_reg_t reg)
795 {
796 WARN_ON(!cpu_has_feature(CPU_FTR_HVMODE));
797 return afu->native->p1n_mmio + cxl_reg_off(reg);
798 }
799
800 static inline void cxl_p1n_write(struct cxl_afu *afu, cxl_p1n_reg_t reg, u64 val)
801 {
802 if (likely(cxl_adapter_link_ok(afu->adapter, afu)))
803 out_be64(_cxl_p1n_addr(afu, reg), val);
804 }
805
806 static inline u64 cxl_p1n_read(struct cxl_afu *afu, cxl_p1n_reg_t reg)
807 {
808 if (likely(cxl_adapter_link_ok(afu->adapter, afu)))
809 return in_be64(_cxl_p1n_addr(afu, reg));
810 else
811 return ~0ULL;
812 }
813
814 static inline void __iomem *_cxl_p2n_addr(struct cxl_afu *afu, cxl_p2n_reg_t reg)
815 {
816 return afu->p2n_mmio + cxl_reg_off(reg);
817 }
818
819 static inline void cxl_p2n_write(struct cxl_afu *afu, cxl_p2n_reg_t reg, u64 val)
820 {
821 if (likely(cxl_adapter_link_ok(afu->adapter, afu)))
822 out_be64(_cxl_p2n_addr(afu, reg), val);
823 }
824
825 static inline u64 cxl_p2n_read(struct cxl_afu *afu, cxl_p2n_reg_t reg)
826 {
827 if (likely(cxl_adapter_link_ok(afu->adapter, afu)))
828 return in_be64(_cxl_p2n_addr(afu, reg));
829 else
830 return ~0ULL;
831 }
832
833 static inline bool cxl_is_power8(void)
834 {
835 if ((pvr_version_is(PVR_POWER8E)) ||
836 (pvr_version_is(PVR_POWER8NVL)) ||
837 (pvr_version_is(PVR_POWER8)))
838 return true;
839 return false;
840 }
841
842 static inline bool cxl_is_power9(void)
843 {
844 if (pvr_version_is(PVR_POWER9))
845 return true;
846 return false;
847 }
848
849 ssize_t cxl_pci_afu_read_err_buffer(struct cxl_afu *afu, char *buf,
850 loff_t off, size_t count);
851
852
853 struct cxl_calls {
854 void (*cxl_slbia)(struct mm_struct *mm);
855 struct module *owner;
856 };
857 int register_cxl_calls(struct cxl_calls *calls);
858 void unregister_cxl_calls(struct cxl_calls *calls);
859 int cxl_update_properties(struct device_node *dn, struct property *new_prop);
860
861 void cxl_remove_adapter_nr(struct cxl *adapter);
862
863 void cxl_release_spa(struct cxl_afu *afu);
864
865 dev_t cxl_get_dev(void);
866 int cxl_file_init(void);
867 void cxl_file_exit(void);
868 int cxl_register_adapter(struct cxl *adapter);
869 int cxl_register_afu(struct cxl_afu *afu);
870 int cxl_chardev_d_afu_add(struct cxl_afu *afu);
871 int cxl_chardev_m_afu_add(struct cxl_afu *afu);
872 int cxl_chardev_s_afu_add(struct cxl_afu *afu);
873 void cxl_chardev_afu_remove(struct cxl_afu *afu);
874
875 void cxl_context_detach_all(struct cxl_afu *afu);
876 void cxl_context_free(struct cxl_context *ctx);
877 void cxl_context_detach(struct cxl_context *ctx);
878
879 int cxl_sysfs_adapter_add(struct cxl *adapter);
880 void cxl_sysfs_adapter_remove(struct cxl *adapter);
881 int cxl_sysfs_afu_add(struct cxl_afu *afu);
882 void cxl_sysfs_afu_remove(struct cxl_afu *afu);
883 int cxl_sysfs_afu_m_add(struct cxl_afu *afu);
884 void cxl_sysfs_afu_m_remove(struct cxl_afu *afu);
885
886 struct cxl *cxl_alloc_adapter(void);
887 struct cxl_afu *cxl_alloc_afu(struct cxl *adapter, int slice);
888 int cxl_afu_select_best_mode(struct cxl_afu *afu);
889
890 int cxl_native_register_psl_irq(struct cxl_afu *afu);
891 void cxl_native_release_psl_irq(struct cxl_afu *afu);
892 int cxl_native_register_psl_err_irq(struct cxl *adapter);
893 void cxl_native_release_psl_err_irq(struct cxl *adapter);
894 int cxl_native_register_serr_irq(struct cxl_afu *afu);
895 void cxl_native_release_serr_irq(struct cxl_afu *afu);
896 int afu_register_irqs(struct cxl_context *ctx, u32 count);
897 void afu_release_irqs(struct cxl_context *ctx, void *cookie);
898 void afu_irq_name_free(struct cxl_context *ctx);
899
900 int cxl_attach_afu_directed_psl9(struct cxl_context *ctx, u64 wed, u64 amr);
901 int cxl_attach_afu_directed_psl8(struct cxl_context *ctx, u64 wed, u64 amr);
902 int cxl_activate_dedicated_process_psl9(struct cxl_afu *afu);
903 int cxl_activate_dedicated_process_psl8(struct cxl_afu *afu);
904 int cxl_attach_dedicated_process_psl9(struct cxl_context *ctx, u64 wed, u64 amr);
905 int cxl_attach_dedicated_process_psl8(struct cxl_context *ctx, u64 wed, u64 amr);
906 void cxl_update_dedicated_ivtes_psl9(struct cxl_context *ctx);
907 void cxl_update_dedicated_ivtes_psl8(struct cxl_context *ctx);
908
909 #ifdef CONFIG_DEBUG_FS
910
911 void cxl_debugfs_init(void);
912 void cxl_debugfs_exit(void);
913 void cxl_debugfs_adapter_add(struct cxl *adapter);
914 void cxl_debugfs_adapter_remove(struct cxl *adapter);
915 void cxl_debugfs_afu_add(struct cxl_afu *afu);
916 void cxl_debugfs_afu_remove(struct cxl_afu *afu);
917 void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir);
918 void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir);
919 void cxl_debugfs_add_afu_regs_psl9(struct cxl_afu *afu, struct dentry *dir);
920 void cxl_debugfs_add_afu_regs_psl8(struct cxl_afu *afu, struct dentry *dir);
921
922 #else
923
924 static inline void __init cxl_debugfs_init(void)
925 {
926 }
927
928 static inline void cxl_debugfs_exit(void)
929 {
930 }
931
932 static inline void cxl_debugfs_adapter_add(struct cxl *adapter)
933 {
934 }
935
936 static inline void cxl_debugfs_adapter_remove(struct cxl *adapter)
937 {
938 }
939
940 static inline void cxl_debugfs_afu_add(struct cxl_afu *afu)
941 {
942 }
943
944 static inline void cxl_debugfs_afu_remove(struct cxl_afu *afu)
945 {
946 }
947
948 static inline void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter,
949 struct dentry *dir)
950 {
951 }
952
953 static inline void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter,
954 struct dentry *dir)
955 {
956 }
957
958 static inline void cxl_debugfs_add_afu_regs_psl9(struct cxl_afu *afu, struct dentry *dir)
959 {
960 }
961
962 static inline void cxl_debugfs_add_afu_regs_psl8(struct cxl_afu *afu, struct dentry *dir)
963 {
964 }
965
966 #endif
967
968 void cxl_handle_fault(struct work_struct *work);
969 void cxl_prefault(struct cxl_context *ctx, u64 wed);
970 int cxl_handle_mm_fault(struct mm_struct *mm, u64 dsisr, u64 dar);
971
972 struct cxl *get_cxl_adapter(int num);
973 int cxl_alloc_sst(struct cxl_context *ctx);
974 void cxl_dump_debug_buffer(void *addr, size_t size);
975
976 void init_cxl_native(void);
977
978 struct cxl_context *cxl_context_alloc(void);
979 int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master);
980 void cxl_context_set_mapping(struct cxl_context *ctx,
981 struct address_space *mapping);
982 void cxl_context_free(struct cxl_context *ctx);
983 int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma);
984 unsigned int cxl_map_irq(struct cxl *adapter, irq_hw_number_t hwirq,
985 irq_handler_t handler, void *cookie, const char *name);
986 void cxl_unmap_irq(unsigned int virq, void *cookie);
987 int __detach_context(struct cxl_context *ctx);
988
989
990
991
992
993
994
995
996 struct cxl_irq_info {
997 u64 dsisr;
998 u64 dar;
999 u64 dsr;
1000 u64 reserved;
1001 u64 afu_err;
1002 u64 errstat;
1003 u64 proc_handle;
1004 u64 padding[2];
1005 };
1006
1007 void cxl_assign_psn_space(struct cxl_context *ctx);
1008 int cxl_invalidate_all_psl9(struct cxl *adapter);
1009 int cxl_invalidate_all_psl8(struct cxl *adapter);
1010 irqreturn_t cxl_irq_psl9(int irq, struct cxl_context *ctx, struct cxl_irq_info *irq_info);
1011 irqreturn_t cxl_irq_psl8(int irq, struct cxl_context *ctx, struct cxl_irq_info *irq_info);
1012 irqreturn_t cxl_fail_irq_psl(struct cxl_afu *afu, struct cxl_irq_info *irq_info);
1013 int cxl_register_one_irq(struct cxl *adapter, irq_handler_t handler,
1014 void *cookie, irq_hw_number_t *dest_hwirq,
1015 unsigned int *dest_virq, const char *name);
1016
1017 int cxl_check_error(struct cxl_afu *afu);
1018 int cxl_afu_slbia(struct cxl_afu *afu);
1019 int cxl_data_cache_flush(struct cxl *adapter);
1020 int cxl_afu_disable(struct cxl_afu *afu);
1021 int cxl_psl_purge(struct cxl_afu *afu);
1022 int cxl_calc_capp_routing(struct pci_dev *dev, u64 *chipid,
1023 u32 *phb_index, u64 *capp_unit_id);
1024 int cxl_slot_is_switched(struct pci_dev *dev);
1025 int cxl_get_xsl9_dsnctl(struct pci_dev *dev, u64 capp_unit_id, u64 *reg);
1026 u64 cxl_calculate_sr(bool master, bool kernel, bool real_mode, bool p9);
1027
1028 void cxl_native_irq_dump_regs_psl9(struct cxl_context *ctx);
1029 void cxl_native_irq_dump_regs_psl8(struct cxl_context *ctx);
1030 void cxl_native_err_irq_dump_regs_psl8(struct cxl *adapter);
1031 void cxl_native_err_irq_dump_regs_psl9(struct cxl *adapter);
1032 int cxl_pci_vphb_add(struct cxl_afu *afu);
1033 void cxl_pci_vphb_remove(struct cxl_afu *afu);
1034 void cxl_release_mapping(struct cxl_context *ctx);
1035
1036 extern struct pci_driver cxl_pci_driver;
1037 extern struct platform_driver cxl_of_driver;
1038 int afu_allocate_irqs(struct cxl_context *ctx, u32 count);
1039
1040 int afu_open(struct inode *inode, struct file *file);
1041 int afu_release(struct inode *inode, struct file *file);
1042 long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1043 int afu_mmap(struct file *file, struct vm_area_struct *vm);
1044 __poll_t afu_poll(struct file *file, struct poll_table_struct *poll);
1045 ssize_t afu_read(struct file *file, char __user *buf, size_t count, loff_t *off);
1046 extern const struct file_operations afu_fops;
1047
1048 struct cxl *cxl_guest_init_adapter(struct device_node *np, struct platform_device *dev);
1049 void cxl_guest_remove_adapter(struct cxl *adapter);
1050 int cxl_of_read_adapter_handle(struct cxl *adapter, struct device_node *np);
1051 int cxl_of_read_adapter_properties(struct cxl *adapter, struct device_node *np);
1052 ssize_t cxl_guest_read_adapter_vpd(struct cxl *adapter, void *buf, size_t len);
1053 ssize_t cxl_guest_read_afu_vpd(struct cxl_afu *afu, void *buf, size_t len);
1054 int cxl_guest_init_afu(struct cxl *adapter, int slice, struct device_node *afu_np);
1055 void cxl_guest_remove_afu(struct cxl_afu *afu);
1056 int cxl_of_read_afu_handle(struct cxl_afu *afu, struct device_node *afu_np);
1057 int cxl_of_read_afu_properties(struct cxl_afu *afu, struct device_node *afu_np);
1058 int cxl_guest_add_chardev(struct cxl *adapter);
1059 void cxl_guest_remove_chardev(struct cxl *adapter);
1060 void cxl_guest_reload_module(struct cxl *adapter);
1061 int cxl_of_probe(struct platform_device *pdev);
1062
1063 struct cxl_backend_ops {
1064 struct module *module;
1065 int (*adapter_reset)(struct cxl *adapter);
1066 int (*alloc_one_irq)(struct cxl *adapter);
1067 void (*release_one_irq)(struct cxl *adapter, int hwirq);
1068 int (*alloc_irq_ranges)(struct cxl_irq_ranges *irqs,
1069 struct cxl *adapter, unsigned int num);
1070 void (*release_irq_ranges)(struct cxl_irq_ranges *irqs,
1071 struct cxl *adapter);
1072 int (*setup_irq)(struct cxl *adapter, unsigned int hwirq,
1073 unsigned int virq);
1074 irqreturn_t (*handle_psl_slice_error)(struct cxl_context *ctx,
1075 u64 dsisr, u64 errstat);
1076 irqreturn_t (*psl_interrupt)(int irq, void *data);
1077 int (*ack_irq)(struct cxl_context *ctx, u64 tfc, u64 psl_reset_mask);
1078 void (*irq_wait)(struct cxl_context *ctx);
1079 int (*attach_process)(struct cxl_context *ctx, bool kernel,
1080 u64 wed, u64 amr);
1081 int (*detach_process)(struct cxl_context *ctx);
1082 void (*update_ivtes)(struct cxl_context *ctx);
1083 bool (*support_attributes)(const char *attr_name, enum cxl_attrs type);
1084 bool (*link_ok)(struct cxl *cxl, struct cxl_afu *afu);
1085 void (*release_afu)(struct device *dev);
1086 ssize_t (*afu_read_err_buffer)(struct cxl_afu *afu, char *buf,
1087 loff_t off, size_t count);
1088 int (*afu_check_and_enable)(struct cxl_afu *afu);
1089 int (*afu_activate_mode)(struct cxl_afu *afu, int mode);
1090 int (*afu_deactivate_mode)(struct cxl_afu *afu, int mode);
1091 int (*afu_reset)(struct cxl_afu *afu);
1092 int (*afu_cr_read8)(struct cxl_afu *afu, int cr_idx, u64 offset, u8 *val);
1093 int (*afu_cr_read16)(struct cxl_afu *afu, int cr_idx, u64 offset, u16 *val);
1094 int (*afu_cr_read32)(struct cxl_afu *afu, int cr_idx, u64 offset, u32 *val);
1095 int (*afu_cr_read64)(struct cxl_afu *afu, int cr_idx, u64 offset, u64 *val);
1096 int (*afu_cr_write8)(struct cxl_afu *afu, int cr_idx, u64 offset, u8 val);
1097 int (*afu_cr_write16)(struct cxl_afu *afu, int cr_idx, u64 offset, u16 val);
1098 int (*afu_cr_write32)(struct cxl_afu *afu, int cr_idx, u64 offset, u32 val);
1099 ssize_t (*read_adapter_vpd)(struct cxl *adapter, void *buf, size_t count);
1100 };
1101 extern const struct cxl_backend_ops cxl_native_ops;
1102 extern const struct cxl_backend_ops cxl_guest_ops;
1103 extern const struct cxl_backend_ops *cxl_ops;
1104
1105
1106 bool cxl_pci_is_vphb_device(struct pci_dev *dev);
1107
1108
1109 void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr);
1110
1111
1112
1113
1114
1115 int cxl_adapter_context_get(struct cxl *adapter);
1116
1117
1118 void cxl_adapter_context_put(struct cxl *adapter);
1119
1120
1121 int cxl_adapter_context_lock(struct cxl *adapter);
1122
1123
1124 void cxl_adapter_context_unlock(struct cxl *adapter);
1125
1126
1127 void cxl_context_mm_count_get(struct cxl_context *ctx);
1128
1129
1130 void cxl_context_mm_count_put(struct cxl_context *ctx);
1131
1132 #endif