1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018-2019 HiSilicon Limited. */
3 #include <linux/acpi.h>
4 #include <linux/bitops.h>
5 #include <linux/debugfs.h>
6 #include <linux/init.h>
7 #include <linux/io.h>
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 #include <linux/pm_runtime.h>
12 #include <linux/topology.h>
13 #include <linux/uacce.h>
14 #include "hpre.h"
15
16 #define CAP_FILE_PERMISSION 0444
17 #define HPRE_CTRL_CNT_CLR_CE_BIT BIT(0)
18 #define HPRE_CTRL_CNT_CLR_CE 0x301000
19 #define HPRE_FSM_MAX_CNT 0x301008
20 #define HPRE_VFG_AXQOS 0x30100c
21 #define HPRE_VFG_AXCACHE 0x301010
22 #define HPRE_RDCHN_INI_CFG 0x301014
23 #define HPRE_AWUSR_FP_CFG 0x301018
24 #define HPRE_BD_ENDIAN 0x301020
25 #define HPRE_ECC_BYPASS 0x301024
26 #define HPRE_RAS_WIDTH_CFG 0x301028
27 #define HPRE_POISON_BYPASS 0x30102c
28 #define HPRE_BD_ARUSR_CFG 0x301030
29 #define HPRE_BD_AWUSR_CFG 0x301034
30 #define HPRE_TYPES_ENB 0x301038
31 #define HPRE_RSA_ENB BIT(0)
32 #define HPRE_ECC_ENB BIT(1)
33 #define HPRE_DATA_RUSER_CFG 0x30103c
34 #define HPRE_DATA_WUSER_CFG 0x301040
35 #define HPRE_INT_MASK 0x301400
36 #define HPRE_INT_STATUS 0x301800
37 #define HPRE_HAC_INT_MSK 0x301400
38 #define HPRE_HAC_RAS_CE_ENB 0x301410
39 #define HPRE_HAC_RAS_NFE_ENB 0x301414
40 #define HPRE_HAC_RAS_FE_ENB 0x301418
41 #define HPRE_HAC_INT_SET 0x301500
42 #define HPRE_RNG_TIMEOUT_NUM 0x301A34
43 #define HPRE_CORE_INT_ENABLE 0
44 #define HPRE_RDCHN_INI_ST 0x301a00
45 #define HPRE_CLSTR_BASE 0x302000
46 #define HPRE_CORE_EN_OFFSET 0x04
47 #define HPRE_CORE_INI_CFG_OFFSET 0x20
48 #define HPRE_CORE_INI_STATUS_OFFSET 0x80
49 #define HPRE_CORE_HTBT_WARN_OFFSET 0x8c
50 #define HPRE_CORE_IS_SCHD_OFFSET 0x90
51
52 #define HPRE_RAS_CE_ENB 0x301410
53 #define HPRE_RAS_NFE_ENB 0x301414
54 #define HPRE_RAS_FE_ENB 0x301418
55 #define HPRE_OOO_SHUTDOWN_SEL 0x301a3c
56 #define HPRE_HAC_RAS_FE_ENABLE 0
57
58 #define HPRE_CORE_ENB (HPRE_CLSTR_BASE + HPRE_CORE_EN_OFFSET)
59 #define HPRE_CORE_INI_CFG (HPRE_CLSTR_BASE + HPRE_CORE_INI_CFG_OFFSET)
60 #define HPRE_CORE_INI_STATUS (HPRE_CLSTR_BASE + HPRE_CORE_INI_STATUS_OFFSET)
61 #define HPRE_HAC_ECC1_CNT 0x301a04
62 #define HPRE_HAC_ECC2_CNT 0x301a08
63 #define HPRE_HAC_SOURCE_INT 0x301600
64 #define HPRE_CLSTR_ADDR_INTRVL 0x1000
65 #define HPRE_CLUSTER_INQURY 0x100
66 #define HPRE_CLSTR_ADDR_INQRY_RSLT 0x104
67 #define HPRE_PASID_EN_BIT 9
68 #define HPRE_REG_RD_INTVRL_US 10
69 #define HPRE_REG_RD_TMOUT_US 1000
70 #define HPRE_DBGFS_VAL_MAX_LEN 20
71 #define PCI_DEVICE_ID_HUAWEI_HPRE_PF 0xa258
72 #define HPRE_QM_USR_CFG_MASK GENMASK(31, 1)
73 #define HPRE_QM_AXI_CFG_MASK GENMASK(15, 0)
74 #define HPRE_QM_VFG_AX_MASK GENMASK(7, 0)
75 #define HPRE_BD_USR_MASK GENMASK(1, 0)
76 #define HPRE_PREFETCH_CFG 0x301130
77 #define HPRE_SVA_PREFTCH_DFX 0x30115C
78 #define HPRE_PREFETCH_ENABLE (~(BIT(0) | BIT(30)))
79 #define HPRE_PREFETCH_DISABLE BIT(30)
80 #define HPRE_SVA_DISABLE_READY (BIT(4) | BIT(8))
81
82 /* clock gate */
83 #define HPRE_CLKGATE_CTL 0x301a10
84 #define HPRE_PEH_CFG_AUTO_GATE 0x301a2c
85 #define HPRE_CLUSTER_DYN_CTL 0x302010
86 #define HPRE_CORE_SHB_CFG 0x302088
87 #define HPRE_CLKGATE_CTL_EN BIT(0)
88 #define HPRE_PEH_CFG_AUTO_GATE_EN BIT(0)
89 #define HPRE_CLUSTER_DYN_CTL_EN BIT(0)
90 #define HPRE_CORE_GATE_EN (BIT(30) | BIT(31))
91
92 #define HPRE_AM_OOO_SHUTDOWN_ENB 0x301044
93 #define HPRE_AM_OOO_SHUTDOWN_ENABLE BIT(0)
94 #define HPRE_WR_MSI_PORT BIT(2)
95
96 #define HPRE_CORE_ECC_2BIT_ERR BIT(1)
97 #define HPRE_OOO_ECC_2BIT_ERR BIT(5)
98
99 #define HPRE_QM_BME_FLR BIT(7)
100 #define HPRE_QM_PM_FLR BIT(11)
101 #define HPRE_QM_SRIOV_FLR BIT(12)
102
103 #define HPRE_SHAPER_TYPE_RATE 640
104 #define HPRE_VIA_MSI_DSM 1
105 #define HPRE_SQE_MASK_OFFSET 8
106 #define HPRE_SQE_MASK_LEN 44
107 #define HPRE_CTX_Q_NUM_DEF 1
108
109 #define HPRE_DFX_BASE 0x301000
110 #define HPRE_DFX_COMMON1 0x301400
111 #define HPRE_DFX_COMMON2 0x301A00
112 #define HPRE_DFX_CORE 0x302000
113 #define HPRE_DFX_BASE_LEN 0x55
114 #define HPRE_DFX_COMMON1_LEN 0x41
115 #define HPRE_DFX_COMMON2_LEN 0xE
116 #define HPRE_DFX_CORE_LEN 0x43
117
118 static const char hpre_name[] = "hisi_hpre";
119 static struct dentry *hpre_debugfs_root;
120 static const struct pci_device_id hpre_dev_ids[] = {
121 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_HPRE_PF) },
122 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_HPRE_VF) },
123 { 0, }
124 };
125
126 MODULE_DEVICE_TABLE(pci, hpre_dev_ids);
127
128 struct hpre_hw_error {
129 u32 int_msk;
130 const char *msg;
131 };
132
133 static const struct qm_dev_alg hpre_dev_algs[] = {
134 {
135 .alg_msk = BIT(0),
136 .alg = "rsa\n"
137 }, {
138 .alg_msk = BIT(1),
139 .alg = "dh\n"
140 }, {
141 .alg_msk = BIT(2),
142 .alg = "ecdh\n"
143 }, {
144 .alg_msk = BIT(3),
145 .alg = "ecdsa\n"
146 }, {
147 .alg_msk = BIT(4),
148 .alg = "sm2\n"
149 }, {
150 .alg_msk = BIT(5),
151 .alg = "x25519\n"
152 }, {
153 .alg_msk = BIT(6),
154 .alg = "x448\n"
155 }, {
156 /* sentinel */
157 }
158 };
159
160 static struct hisi_qm_list hpre_devices = {
161 .register_to_crypto = hpre_algs_register,
162 .unregister_from_crypto = hpre_algs_unregister,
163 };
164
165 static const char * const hpre_debug_file_name[] = {
166 [HPRE_CLEAR_ENABLE] = "rdclr_en",
167 [HPRE_CLUSTER_CTRL] = "cluster_ctrl",
168 };
169
170 enum hpre_cap_type {
171 HPRE_QM_NFE_MASK_CAP,
172 HPRE_QM_RESET_MASK_CAP,
173 HPRE_QM_OOO_SHUTDOWN_MASK_CAP,
174 HPRE_QM_CE_MASK_CAP,
175 HPRE_NFE_MASK_CAP,
176 HPRE_RESET_MASK_CAP,
177 HPRE_OOO_SHUTDOWN_MASK_CAP,
178 HPRE_CE_MASK_CAP,
179 HPRE_CLUSTER_NUM_CAP,
180 HPRE_CORE_TYPE_NUM_CAP,
181 HPRE_CORE_NUM_CAP,
182 HPRE_CLUSTER_CORE_NUM_CAP,
183 HPRE_CORE_ENABLE_BITMAP_CAP,
184 HPRE_DRV_ALG_BITMAP_CAP,
185 HPRE_DEV_ALG_BITMAP_CAP,
186 HPRE_CORE1_ALG_BITMAP_CAP,
187 HPRE_CORE2_ALG_BITMAP_CAP,
188 HPRE_CORE3_ALG_BITMAP_CAP,
189 HPRE_CORE4_ALG_BITMAP_CAP,
190 HPRE_CORE5_ALG_BITMAP_CAP,
191 HPRE_CORE6_ALG_BITMAP_CAP,
192 HPRE_CORE7_ALG_BITMAP_CAP,
193 HPRE_CORE8_ALG_BITMAP_CAP,
194 HPRE_CORE9_ALG_BITMAP_CAP,
195 HPRE_CORE10_ALG_BITMAP_CAP
196 };
197
198 static const struct hisi_qm_cap_info hpre_basic_info[] = {
199 {HPRE_QM_NFE_MASK_CAP, 0x3124, 0, GENMASK(31, 0), 0x0, 0x1C37, 0x7C37},
200 {HPRE_QM_RESET_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0xC37, 0x6C37},
201 {HPRE_QM_OOO_SHUTDOWN_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0x4, 0x6C37},
202 {HPRE_QM_CE_MASK_CAP, 0x312C, 0, GENMASK(31, 0), 0x0, 0x8, 0x8},
203 {HPRE_NFE_MASK_CAP, 0x3130, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0x1FFFC3E},
204 {HPRE_RESET_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0xBFFC3E},
205 {HPRE_OOO_SHUTDOWN_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x22, 0xBFFC3E},
206 {HPRE_CE_MASK_CAP, 0x3138, 0, GENMASK(31, 0), 0x0, 0x1, 0x1},
207 {HPRE_CLUSTER_NUM_CAP, 0x313c, 20, GENMASK(3, 0), 0x0, 0x4, 0x1},
208 {HPRE_CORE_TYPE_NUM_CAP, 0x313c, 16, GENMASK(3, 0), 0x0, 0x2, 0x2},
209 {HPRE_CORE_NUM_CAP, 0x313c, 8, GENMASK(7, 0), 0x0, 0x8, 0xA},
210 {HPRE_CLUSTER_CORE_NUM_CAP, 0x313c, 0, GENMASK(7, 0), 0x0, 0x2, 0xA},
211 {HPRE_CORE_ENABLE_BITMAP_CAP, 0x3140, 0, GENMASK(31, 0), 0x0, 0xF, 0x3FF},
212 {HPRE_DRV_ALG_BITMAP_CAP, 0x3144, 0, GENMASK(31, 0), 0x0, 0x03, 0x27},
213 {HPRE_DEV_ALG_BITMAP_CAP, 0x3148, 0, GENMASK(31, 0), 0x0, 0x03, 0x7F},
214 {HPRE_CORE1_ALG_BITMAP_CAP, 0x314c, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
215 {HPRE_CORE2_ALG_BITMAP_CAP, 0x3150, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
216 {HPRE_CORE3_ALG_BITMAP_CAP, 0x3154, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
217 {HPRE_CORE4_ALG_BITMAP_CAP, 0x3158, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
218 {HPRE_CORE5_ALG_BITMAP_CAP, 0x315c, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
219 {HPRE_CORE6_ALG_BITMAP_CAP, 0x3160, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
220 {HPRE_CORE7_ALG_BITMAP_CAP, 0x3164, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
221 {HPRE_CORE8_ALG_BITMAP_CAP, 0x3168, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F},
222 {HPRE_CORE9_ALG_BITMAP_CAP, 0x316c, 0, GENMASK(31, 0), 0x0, 0x10, 0x10},
223 {HPRE_CORE10_ALG_BITMAP_CAP, 0x3170, 0, GENMASK(31, 0), 0x0, 0x10, 0x10}
224 };
225
226 static const struct hisi_qm_cap_query_info hpre_cap_query_info[] = {
227 {QM_RAS_NFE_TYPE, "QM_RAS_NFE_TYPE ", 0x3124, 0x0, 0x1C37, 0x7C37},
228 {QM_RAS_NFE_RESET, "QM_RAS_NFE_RESET ", 0x3128, 0x0, 0xC77, 0x6C77},
229 {QM_RAS_CE_TYPE, "QM_RAS_CE_TYPE ", 0x312C, 0x0, 0x8, 0x8},
230 {HPRE_RAS_NFE_TYPE, "HPRE_RAS_NFE_TYPE ", 0x3130, 0x0, 0x3FFFFE, 0x1FFFC3E},
231 {HPRE_RAS_NFE_RESET, "HPRE_RAS_NFE_RESET ", 0x3134, 0x0, 0x3FFFFE, 0xBFFC3E},
232 {HPRE_RAS_CE_TYPE, "HPRE_RAS_CE_TYPE ", 0x3138, 0x0, 0x1, 0x1},
233 {HPRE_CORE_INFO, "HPRE_CORE_INFO ", 0x313c, 0x0, 0x420802, 0x120A0A},
234 {HPRE_CORE_EN, "HPRE_CORE_EN ", 0x3140, 0x0, 0xF, 0x3FF},
235 {HPRE_DRV_ALG_BITMAP, "HPRE_DRV_ALG_BITMAP ", 0x3144, 0x0, 0x03, 0x27},
236 {HPRE_ALG_BITMAP, "HPRE_ALG_BITMAP ", 0x3148, 0x0, 0x03, 0x7F},
237 {HPRE_CORE1_BITMAP_CAP, "HPRE_CORE1_BITMAP_CAP ", 0x314c, 0x0, 0x7F, 0x7F},
238 {HPRE_CORE2_BITMAP_CAP, "HPRE_CORE2_BITMAP_CAP ", 0x3150, 0x0, 0x7F, 0x7F},
239 {HPRE_CORE3_BITMAP_CAP, "HPRE_CORE3_BITMAP_CAP ", 0x3154, 0x0, 0x7F, 0x7F},
240 {HPRE_CORE4_BITMAP_CAP, "HPRE_CORE4_BITMAP_CAP ", 0x3158, 0x0, 0x7F, 0x7F},
241 {HPRE_CORE5_BITMAP_CAP, "HPRE_CORE5_BITMAP_CAP ", 0x315c, 0x0, 0x7F, 0x7F},
242 {HPRE_CORE6_BITMAP_CAP, "HPRE_CORE6_BITMAP_CAP ", 0x3160, 0x0, 0x7F, 0x7F},
243 {HPRE_CORE7_BITMAP_CAP, "HPRE_CORE7_BITMAP_CAP ", 0x3164, 0x0, 0x7F, 0x7F},
244 {HPRE_CORE8_BITMAP_CAP, "HPRE_CORE8_BITMAP_CAP ", 0x3168, 0x0, 0x7F, 0x7F},
245 {HPRE_CORE9_BITMAP_CAP, "HPRE_CORE9_BITMAP_CAP ", 0x316c, 0x0, 0x10, 0x10},
246 {HPRE_CORE10_BITMAP_CAP, "HPRE_CORE10_BITMAP_CAP ", 0x3170, 0x0, 0x10, 0x10},
247 };
248
249 static const struct hpre_hw_error hpre_hw_errors[] = {
250 {
251 .int_msk = BIT(0),
252 .msg = "core_ecc_1bit_err_int_set"
253 }, {
254 .int_msk = BIT(1),
255 .msg = "core_ecc_2bit_err_int_set"
256 }, {
257 .int_msk = BIT(2),
258 .msg = "dat_wb_poison_int_set"
259 }, {
260 .int_msk = BIT(3),
261 .msg = "dat_rd_poison_int_set"
262 }, {
263 .int_msk = BIT(4),
264 .msg = "bd_rd_poison_int_set"
265 }, {
266 .int_msk = BIT(5),
267 .msg = "ooo_ecc_2bit_err_int_set"
268 }, {
269 .int_msk = BIT(6),
270 .msg = "cluster1_shb_timeout_int_set"
271 }, {
272 .int_msk = BIT(7),
273 .msg = "cluster2_shb_timeout_int_set"
274 }, {
275 .int_msk = BIT(8),
276 .msg = "cluster3_shb_timeout_int_set"
277 }, {
278 .int_msk = BIT(9),
279 .msg = "cluster4_shb_timeout_int_set"
280 }, {
281 .int_msk = GENMASK(15, 10),
282 .msg = "ooo_rdrsp_err_int_set"
283 }, {
284 .int_msk = GENMASK(21, 16),
285 .msg = "ooo_wrrsp_err_int_set"
286 }, {
287 .int_msk = BIT(22),
288 .msg = "pt_rng_timeout_int_set"
289 }, {
290 .int_msk = BIT(23),
291 .msg = "sva_fsm_timeout_int_set"
292 }, {
293 .int_msk = BIT(24),
294 .msg = "sva_int_set"
295 }, {
296 /* sentinel */
297 }
298 };
299
300 static const u64 hpre_cluster_offsets[] = {
301 [HPRE_CLUSTER0] =
302 HPRE_CLSTR_BASE + HPRE_CLUSTER0 * HPRE_CLSTR_ADDR_INTRVL,
303 [HPRE_CLUSTER1] =
304 HPRE_CLSTR_BASE + HPRE_CLUSTER1 * HPRE_CLSTR_ADDR_INTRVL,
305 [HPRE_CLUSTER2] =
306 HPRE_CLSTR_BASE + HPRE_CLUSTER2 * HPRE_CLSTR_ADDR_INTRVL,
307 [HPRE_CLUSTER3] =
308 HPRE_CLSTR_BASE + HPRE_CLUSTER3 * HPRE_CLSTR_ADDR_INTRVL,
309 };
310
311 static const struct debugfs_reg32 hpre_cluster_dfx_regs[] = {
312 {"CORES_EN_STATUS ", HPRE_CORE_EN_OFFSET},
313 {"CORES_INI_CFG ", HPRE_CORE_INI_CFG_OFFSET},
314 {"CORES_INI_STATUS ", HPRE_CORE_INI_STATUS_OFFSET},
315 {"CORES_HTBT_WARN ", HPRE_CORE_HTBT_WARN_OFFSET},
316 {"CORES_IS_SCHD ", HPRE_CORE_IS_SCHD_OFFSET},
317 };
318
319 static const struct debugfs_reg32 hpre_com_dfx_regs[] = {
320 {"READ_CLR_EN ", HPRE_CTRL_CNT_CLR_CE},
321 {"AXQOS ", HPRE_VFG_AXQOS},
322 {"AWUSR_CFG ", HPRE_AWUSR_FP_CFG},
323 {"BD_ENDIAN ", HPRE_BD_ENDIAN},
324 {"ECC_CHECK_CTRL ", HPRE_ECC_BYPASS},
325 {"RAS_INT_WIDTH ", HPRE_RAS_WIDTH_CFG},
326 {"POISON_BYPASS ", HPRE_POISON_BYPASS},
327 {"BD_ARUSER ", HPRE_BD_ARUSR_CFG},
328 {"BD_AWUSER ", HPRE_BD_AWUSR_CFG},
329 {"DATA_ARUSER ", HPRE_DATA_RUSER_CFG},
330 {"DATA_AWUSER ", HPRE_DATA_WUSER_CFG},
331 {"INT_STATUS ", HPRE_INT_STATUS},
332 {"INT_MASK ", HPRE_HAC_INT_MSK},
333 {"RAS_CE_ENB ", HPRE_HAC_RAS_CE_ENB},
334 {"RAS_NFE_ENB ", HPRE_HAC_RAS_NFE_ENB},
335 {"RAS_FE_ENB ", HPRE_HAC_RAS_FE_ENB},
336 {"INT_SET ", HPRE_HAC_INT_SET},
337 {"RNG_TIMEOUT_NUM ", HPRE_RNG_TIMEOUT_NUM},
338 };
339
340 static const char *hpre_dfx_files[HPRE_DFX_FILE_NUM] = {
341 "send_cnt",
342 "recv_cnt",
343 "send_fail_cnt",
344 "send_busy_cnt",
345 "over_thrhld_cnt",
346 "overtime_thrhld",
347 "invalid_req_cnt"
348 };
349
350 /* define the HPRE's dfx regs region and region length */
351 static struct dfx_diff_registers hpre_diff_regs[] = {
352 {
353 .reg_offset = HPRE_DFX_BASE,
354 .reg_len = HPRE_DFX_BASE_LEN,
355 }, {
356 .reg_offset = HPRE_DFX_COMMON1,
357 .reg_len = HPRE_DFX_COMMON1_LEN,
358 }, {
359 .reg_offset = HPRE_DFX_COMMON2,
360 .reg_len = HPRE_DFX_COMMON2_LEN,
361 }, {
362 .reg_offset = HPRE_DFX_CORE,
363 .reg_len = HPRE_DFX_CORE_LEN,
364 },
365 };
366
367 static const struct hisi_qm_err_ini hpre_err_ini;
368
hpre_check_alg_support(struct hisi_qm * qm,u32 alg)369 bool hpre_check_alg_support(struct hisi_qm *qm, u32 alg)
370 {
371 u32 cap_val;
372
373 cap_val = qm->cap_tables.dev_cap_table[HPRE_DRV_ALG_BITMAP].cap_val;
374 if (alg & cap_val)
375 return true;
376
377 return false;
378 }
379
hpre_diff_regs_show(struct seq_file * s,void * unused)380 static int hpre_diff_regs_show(struct seq_file *s, void *unused)
381 {
382 struct hisi_qm *qm = s->private;
383
384 hisi_qm_acc_diff_regs_dump(qm, s, qm->debug.acc_diff_regs,
385 ARRAY_SIZE(hpre_diff_regs));
386
387 return 0;
388 }
389
390 DEFINE_SHOW_ATTRIBUTE(hpre_diff_regs);
391
hpre_com_regs_show(struct seq_file * s,void * unused)392 static int hpre_com_regs_show(struct seq_file *s, void *unused)
393 {
394 hisi_qm_regs_dump(s, s->private);
395
396 return 0;
397 }
398
399 DEFINE_SHOW_ATTRIBUTE(hpre_com_regs);
400
hpre_cluster_regs_show(struct seq_file * s,void * unused)401 static int hpre_cluster_regs_show(struct seq_file *s, void *unused)
402 {
403 hisi_qm_regs_dump(s, s->private);
404
405 return 0;
406 }
407
408 DEFINE_SHOW_ATTRIBUTE(hpre_cluster_regs);
409
410 static const struct kernel_param_ops hpre_uacce_mode_ops = {
411 .set = uacce_mode_set,
412 .get = param_get_int,
413 };
414
415 /*
416 * uacce_mode = 0 means hpre only register to crypto,
417 * uacce_mode = 1 means hpre both register to crypto and uacce.
418 */
419 static u32 uacce_mode = UACCE_MODE_NOUACCE;
420 module_param_cb(uacce_mode, &hpre_uacce_mode_ops, &uacce_mode, 0444);
421 MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC);
422
423 static bool pf_q_num_flag;
pf_q_num_set(const char * val,const struct kernel_param * kp)424 static int pf_q_num_set(const char *val, const struct kernel_param *kp)
425 {
426 pf_q_num_flag = true;
427
428 return hisi_qm_q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_HPRE_PF);
429 }
430
431 static const struct kernel_param_ops hpre_pf_q_num_ops = {
432 .set = pf_q_num_set,
433 .get = param_get_int,
434 };
435
436 static u32 pf_q_num = HPRE_PF_DEF_Q_NUM;
437 module_param_cb(pf_q_num, &hpre_pf_q_num_ops, &pf_q_num, 0444);
438 MODULE_PARM_DESC(pf_q_num, "Number of queues in PF of CS(2-1024)");
439
440 static const struct kernel_param_ops vfs_num_ops = {
441 .set = vfs_num_set,
442 .get = param_get_int,
443 };
444
445 static u32 vfs_num;
446 module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444);
447 MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)");
448
hpre_create_qp(u8 type)449 struct hisi_qp *hpre_create_qp(u8 type)
450 {
451 int node = cpu_to_node(raw_smp_processor_id());
452 struct hisi_qp *qp = NULL;
453 int ret;
454
455 if (type != HPRE_V2_ALG_TYPE && type != HPRE_V3_ECC_ALG_TYPE)
456 return NULL;
457
458 /*
459 * type: 0 - RSA/DH. algorithm supported in V2,
460 * 1 - ECC algorithm in V3.
461 */
462 ret = hisi_qm_alloc_qps_node(&hpre_devices, 1, type, node, &qp);
463 if (!ret)
464 return qp;
465
466 return NULL;
467 }
468
hpre_config_pasid(struct hisi_qm * qm)469 static void hpre_config_pasid(struct hisi_qm *qm)
470 {
471 u32 val1, val2;
472
473 if (qm->ver >= QM_HW_V3)
474 return;
475
476 val1 = readl_relaxed(qm->io_base + HPRE_DATA_RUSER_CFG);
477 val2 = readl_relaxed(qm->io_base + HPRE_DATA_WUSER_CFG);
478 if (qm->use_sva) {
479 val1 |= BIT(HPRE_PASID_EN_BIT);
480 val2 |= BIT(HPRE_PASID_EN_BIT);
481 } else {
482 val1 &= ~BIT(HPRE_PASID_EN_BIT);
483 val2 &= ~BIT(HPRE_PASID_EN_BIT);
484 }
485 writel_relaxed(val1, qm->io_base + HPRE_DATA_RUSER_CFG);
486 writel_relaxed(val2, qm->io_base + HPRE_DATA_WUSER_CFG);
487 }
488
hpre_cfg_by_dsm(struct hisi_qm * qm)489 static int hpre_cfg_by_dsm(struct hisi_qm *qm)
490 {
491 struct device *dev = &qm->pdev->dev;
492 union acpi_object *obj;
493 guid_t guid;
494
495 if (guid_parse("b06b81ab-0134-4a45-9b0c-483447b95fa7", &guid)) {
496 dev_err(dev, "Hpre GUID failed\n");
497 return -EINVAL;
498 }
499
500 /* Switch over to MSI handling due to non-standard PCI implementation */
501 obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &guid,
502 0, HPRE_VIA_MSI_DSM, NULL);
503 if (!obj) {
504 dev_err(dev, "ACPI handle failed!\n");
505 return -EIO;
506 }
507
508 ACPI_FREE(obj);
509
510 return 0;
511 }
512
hpre_set_cluster(struct hisi_qm * qm)513 static int hpre_set_cluster(struct hisi_qm *qm)
514 {
515 struct device *dev = &qm->pdev->dev;
516 u32 cluster_core_mask;
517 unsigned long offset;
518 u32 hpre_core_info;
519 u8 clusters_num;
520 u32 val = 0;
521 int ret, i;
522
523 cluster_core_mask = qm->cap_tables.dev_cap_table[HPRE_CORE_EN].cap_val;
524 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
525 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
526 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
527 for (i = 0; i < clusters_num; i++) {
528 offset = i * HPRE_CLSTR_ADDR_INTRVL;
529
530 /* clusters initiating */
531 writel(cluster_core_mask,
532 qm->io_base + offset + HPRE_CORE_ENB);
533 writel(0x1, qm->io_base + offset + HPRE_CORE_INI_CFG);
534 ret = readl_relaxed_poll_timeout(qm->io_base + offset +
535 HPRE_CORE_INI_STATUS, val,
536 ((val & cluster_core_mask) ==
537 cluster_core_mask),
538 HPRE_REG_RD_INTVRL_US,
539 HPRE_REG_RD_TMOUT_US);
540 if (ret) {
541 dev_err(dev,
542 "cluster %d int st status timeout!\n", i);
543 return -ETIMEDOUT;
544 }
545 }
546
547 return 0;
548 }
549
550 /*
551 * For Kunpeng 920, we should disable FLR triggered by hardware (BME/PM/SRIOV).
552 * Or it may stay in D3 state when we bind and unbind hpre quickly,
553 * as it does FLR triggered by hardware.
554 */
disable_flr_of_bme(struct hisi_qm * qm)555 static void disable_flr_of_bme(struct hisi_qm *qm)
556 {
557 u32 val;
558
559 val = readl(qm->io_base + QM_PEH_AXUSER_CFG);
560 val &= ~(HPRE_QM_BME_FLR | HPRE_QM_SRIOV_FLR);
561 val |= HPRE_QM_PM_FLR;
562 writel(val, qm->io_base + QM_PEH_AXUSER_CFG);
563 writel(PEH_AXUSER_CFG_ENABLE, qm->io_base + QM_PEH_AXUSER_CFG_ENABLE);
564 }
565
hpre_open_sva_prefetch(struct hisi_qm * qm)566 static void hpre_open_sva_prefetch(struct hisi_qm *qm)
567 {
568 u32 val;
569 int ret;
570
571 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
572 return;
573
574 /* Enable prefetch */
575 val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG);
576 val &= HPRE_PREFETCH_ENABLE;
577 writel(val, qm->io_base + HPRE_PREFETCH_CFG);
578
579 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_PREFETCH_CFG,
580 val, !(val & HPRE_PREFETCH_DISABLE),
581 HPRE_REG_RD_INTVRL_US,
582 HPRE_REG_RD_TMOUT_US);
583 if (ret)
584 pci_err(qm->pdev, "failed to open sva prefetch\n");
585 }
586
hpre_close_sva_prefetch(struct hisi_qm * qm)587 static void hpre_close_sva_prefetch(struct hisi_qm *qm)
588 {
589 u32 val;
590 int ret;
591
592 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
593 return;
594
595 val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG);
596 val |= HPRE_PREFETCH_DISABLE;
597 writel(val, qm->io_base + HPRE_PREFETCH_CFG);
598
599 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_SVA_PREFTCH_DFX,
600 val, !(val & HPRE_SVA_DISABLE_READY),
601 HPRE_REG_RD_INTVRL_US,
602 HPRE_REG_RD_TMOUT_US);
603 if (ret)
604 pci_err(qm->pdev, "failed to close sva prefetch\n");
605 }
606
hpre_enable_clock_gate(struct hisi_qm * qm)607 static void hpre_enable_clock_gate(struct hisi_qm *qm)
608 {
609 unsigned long offset;
610 u8 clusters_num, i;
611 u32 hpre_core_info;
612 u32 val;
613
614 if (qm->ver < QM_HW_V3)
615 return;
616
617 val = readl(qm->io_base + HPRE_CLKGATE_CTL);
618 val |= HPRE_CLKGATE_CTL_EN;
619 writel(val, qm->io_base + HPRE_CLKGATE_CTL);
620
621 val = readl(qm->io_base + HPRE_PEH_CFG_AUTO_GATE);
622 val |= HPRE_PEH_CFG_AUTO_GATE_EN;
623 writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE);
624
625 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
626 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
627 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
628 for (i = 0; i < clusters_num; i++) {
629 offset = (unsigned long)i * HPRE_CLSTR_ADDR_INTRVL;
630 val = readl(qm->io_base + offset + HPRE_CLUSTER_DYN_CTL);
631 val |= HPRE_CLUSTER_DYN_CTL_EN;
632 writel(val, qm->io_base + offset + HPRE_CLUSTER_DYN_CTL);
633
634 val = readl(qm->io_base + offset + HPRE_CORE_SHB_CFG);
635 val |= HPRE_CORE_GATE_EN;
636 writel(val, qm->io_base + offset + HPRE_CORE_SHB_CFG);
637 }
638 }
639
hpre_disable_clock_gate(struct hisi_qm * qm)640 static void hpre_disable_clock_gate(struct hisi_qm *qm)
641 {
642 unsigned long offset;
643 u8 clusters_num, i;
644 u32 hpre_core_info;
645 u32 val;
646
647 if (qm->ver < QM_HW_V3)
648 return;
649
650 val = readl(qm->io_base + HPRE_CLKGATE_CTL);
651 val &= ~HPRE_CLKGATE_CTL_EN;
652 writel(val, qm->io_base + HPRE_CLKGATE_CTL);
653
654 val = readl(qm->io_base + HPRE_PEH_CFG_AUTO_GATE);
655 val &= ~HPRE_PEH_CFG_AUTO_GATE_EN;
656 writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE);
657
658 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
659 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
660 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
661 for (i = 0; i < clusters_num; i++) {
662 offset = (unsigned long)i * HPRE_CLSTR_ADDR_INTRVL;
663 val = readl(qm->io_base + offset + HPRE_CLUSTER_DYN_CTL);
664 val &= ~HPRE_CLUSTER_DYN_CTL_EN;
665 writel(val, qm->io_base + offset + HPRE_CLUSTER_DYN_CTL);
666
667 val = readl(qm->io_base + offset + HPRE_CORE_SHB_CFG);
668 val &= ~HPRE_CORE_GATE_EN;
669 writel(val, qm->io_base + offset + HPRE_CORE_SHB_CFG);
670 }
671 }
672
hpre_set_user_domain_and_cache(struct hisi_qm * qm)673 static int hpre_set_user_domain_and_cache(struct hisi_qm *qm)
674 {
675 struct device *dev = &qm->pdev->dev;
676 u32 val;
677 int ret;
678
679 /* disabel dynamic clock gate before sram init */
680 hpre_disable_clock_gate(qm);
681
682 writel(HPRE_QM_USR_CFG_MASK, qm->io_base + QM_ARUSER_M_CFG_ENABLE);
683 writel(HPRE_QM_USR_CFG_MASK, qm->io_base + QM_AWUSER_M_CFG_ENABLE);
684 writel_relaxed(HPRE_QM_AXI_CFG_MASK, qm->io_base + QM_AXI_M_CFG);
685
686 if (qm->ver >= QM_HW_V3)
687 writel(HPRE_RSA_ENB | HPRE_ECC_ENB,
688 qm->io_base + HPRE_TYPES_ENB);
689 else
690 writel(HPRE_RSA_ENB, qm->io_base + HPRE_TYPES_ENB);
691
692 writel(HPRE_QM_VFG_AX_MASK, qm->io_base + HPRE_VFG_AXCACHE);
693 writel(0x0, qm->io_base + HPRE_BD_ENDIAN);
694 writel(0x0, qm->io_base + HPRE_POISON_BYPASS);
695 writel(0x0, qm->io_base + HPRE_ECC_BYPASS);
696
697 writel(HPRE_BD_USR_MASK, qm->io_base + HPRE_BD_ARUSR_CFG);
698 writel(HPRE_BD_USR_MASK, qm->io_base + HPRE_BD_AWUSR_CFG);
699 writel(0x1, qm->io_base + HPRE_RDCHN_INI_CFG);
700 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_RDCHN_INI_ST, val,
701 val & BIT(0),
702 HPRE_REG_RD_INTVRL_US,
703 HPRE_REG_RD_TMOUT_US);
704 if (ret) {
705 dev_err(dev, "read rd channel timeout fail!\n");
706 return -ETIMEDOUT;
707 }
708
709 ret = hpre_set_cluster(qm);
710 if (ret)
711 return -ETIMEDOUT;
712
713 /* This setting is only needed by Kunpeng 920. */
714 if (qm->ver == QM_HW_V2) {
715 ret = hpre_cfg_by_dsm(qm);
716 if (ret)
717 return ret;
718
719 disable_flr_of_bme(qm);
720 }
721
722 /* Config data buffer pasid needed by Kunpeng 920 */
723 hpre_config_pasid(qm);
724
725 hpre_enable_clock_gate(qm);
726
727 return ret;
728 }
729
hpre_cnt_regs_clear(struct hisi_qm * qm)730 static void hpre_cnt_regs_clear(struct hisi_qm *qm)
731 {
732 unsigned long offset;
733 u32 hpre_core_info;
734 u8 clusters_num;
735 int i;
736
737 /* clear clusterX/cluster_ctrl */
738 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
739 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
740 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
741 for (i = 0; i < clusters_num; i++) {
742 offset = HPRE_CLSTR_BASE + i * HPRE_CLSTR_ADDR_INTRVL;
743 writel(0x0, qm->io_base + offset + HPRE_CLUSTER_INQURY);
744 }
745
746 /* clear rdclr_en */
747 writel(0x0, qm->io_base + HPRE_CTRL_CNT_CLR_CE);
748
749 hisi_qm_debug_regs_clear(qm);
750 }
751
hpre_master_ooo_ctrl(struct hisi_qm * qm,bool enable)752 static void hpre_master_ooo_ctrl(struct hisi_qm *qm, bool enable)
753 {
754 u32 val1, val2;
755
756 val1 = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB);
757 if (enable) {
758 val1 |= HPRE_AM_OOO_SHUTDOWN_ENABLE;
759 val2 = hisi_qm_get_hw_info(qm, hpre_basic_info,
760 HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
761 } else {
762 val1 &= ~HPRE_AM_OOO_SHUTDOWN_ENABLE;
763 val2 = 0x0;
764 }
765
766 if (qm->ver > QM_HW_V2)
767 writel(val2, qm->io_base + HPRE_OOO_SHUTDOWN_SEL);
768
769 writel(val1, qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB);
770 }
771
hpre_hw_error_disable(struct hisi_qm * qm)772 static void hpre_hw_error_disable(struct hisi_qm *qm)
773 {
774 u32 ce, nfe;
775
776 ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver);
777 nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver);
778
779 /* disable hpre hw error interrupts */
780 writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_INT_MASK);
781 /* disable HPRE block master OOO when nfe occurs on Kunpeng930 */
782 hpre_master_ooo_ctrl(qm, false);
783 }
784
hpre_hw_error_enable(struct hisi_qm * qm)785 static void hpre_hw_error_enable(struct hisi_qm *qm)
786 {
787 u32 ce, nfe, err_en;
788
789 ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver);
790 nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver);
791
792 /* clear HPRE hw error source if having */
793 writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_HAC_SOURCE_INT);
794
795 /* configure error type */
796 writel(ce, qm->io_base + HPRE_RAS_CE_ENB);
797 writel(nfe, qm->io_base + HPRE_RAS_NFE_ENB);
798 writel(HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_RAS_FE_ENB);
799
800 /* enable HPRE block master OOO when nfe occurs on Kunpeng930 */
801 hpre_master_ooo_ctrl(qm, true);
802
803 /* enable hpre hw error interrupts */
804 err_en = ce | nfe | HPRE_HAC_RAS_FE_ENABLE;
805 writel(~err_en, qm->io_base + HPRE_INT_MASK);
806 }
807
hpre_file_to_qm(struct hpre_debugfs_file * file)808 static inline struct hisi_qm *hpre_file_to_qm(struct hpre_debugfs_file *file)
809 {
810 struct hpre *hpre = container_of(file->debug, struct hpre, debug);
811
812 return &hpre->qm;
813 }
814
hpre_clear_enable_read(struct hpre_debugfs_file * file)815 static u32 hpre_clear_enable_read(struct hpre_debugfs_file *file)
816 {
817 struct hisi_qm *qm = hpre_file_to_qm(file);
818
819 return readl(qm->io_base + HPRE_CTRL_CNT_CLR_CE) &
820 HPRE_CTRL_CNT_CLR_CE_BIT;
821 }
822
hpre_clear_enable_write(struct hpre_debugfs_file * file,u32 val)823 static int hpre_clear_enable_write(struct hpre_debugfs_file *file, u32 val)
824 {
825 struct hisi_qm *qm = hpre_file_to_qm(file);
826 u32 tmp;
827
828 if (val != 1 && val != 0)
829 return -EINVAL;
830
831 tmp = (readl(qm->io_base + HPRE_CTRL_CNT_CLR_CE) &
832 ~HPRE_CTRL_CNT_CLR_CE_BIT) | val;
833 writel(tmp, qm->io_base + HPRE_CTRL_CNT_CLR_CE);
834
835 return 0;
836 }
837
hpre_cluster_inqry_read(struct hpre_debugfs_file * file)838 static u32 hpre_cluster_inqry_read(struct hpre_debugfs_file *file)
839 {
840 struct hisi_qm *qm = hpre_file_to_qm(file);
841 int cluster_index = file->index - HPRE_CLUSTER_CTRL;
842 unsigned long offset = HPRE_CLSTR_BASE +
843 cluster_index * HPRE_CLSTR_ADDR_INTRVL;
844
845 return readl(qm->io_base + offset + HPRE_CLSTR_ADDR_INQRY_RSLT);
846 }
847
hpre_cluster_inqry_write(struct hpre_debugfs_file * file,u32 val)848 static void hpre_cluster_inqry_write(struct hpre_debugfs_file *file, u32 val)
849 {
850 struct hisi_qm *qm = hpre_file_to_qm(file);
851 int cluster_index = file->index - HPRE_CLUSTER_CTRL;
852 unsigned long offset = HPRE_CLSTR_BASE + cluster_index *
853 HPRE_CLSTR_ADDR_INTRVL;
854
855 writel(val, qm->io_base + offset + HPRE_CLUSTER_INQURY);
856 }
857
hpre_ctrl_debug_read(struct file * filp,char __user * buf,size_t count,loff_t * pos)858 static ssize_t hpre_ctrl_debug_read(struct file *filp, char __user *buf,
859 size_t count, loff_t *pos)
860 {
861 struct hpre_debugfs_file *file = filp->private_data;
862 struct hisi_qm *qm = hpre_file_to_qm(file);
863 char tbuf[HPRE_DBGFS_VAL_MAX_LEN];
864 u32 val;
865 int ret;
866
867 ret = hisi_qm_get_dfx_access(qm);
868 if (ret)
869 return ret;
870
871 spin_lock_irq(&file->lock);
872 switch (file->type) {
873 case HPRE_CLEAR_ENABLE:
874 val = hpre_clear_enable_read(file);
875 break;
876 case HPRE_CLUSTER_CTRL:
877 val = hpre_cluster_inqry_read(file);
878 break;
879 default:
880 goto err_input;
881 }
882 spin_unlock_irq(&file->lock);
883
884 hisi_qm_put_dfx_access(qm);
885 ret = snprintf(tbuf, HPRE_DBGFS_VAL_MAX_LEN, "%u\n", val);
886 return simple_read_from_buffer(buf, count, pos, tbuf, ret);
887
888 err_input:
889 spin_unlock_irq(&file->lock);
890 hisi_qm_put_dfx_access(qm);
891 return -EINVAL;
892 }
893
hpre_ctrl_debug_write(struct file * filp,const char __user * buf,size_t count,loff_t * pos)894 static ssize_t hpre_ctrl_debug_write(struct file *filp, const char __user *buf,
895 size_t count, loff_t *pos)
896 {
897 struct hpre_debugfs_file *file = filp->private_data;
898 struct hisi_qm *qm = hpre_file_to_qm(file);
899 char tbuf[HPRE_DBGFS_VAL_MAX_LEN];
900 unsigned long val;
901 int len, ret;
902
903 if (*pos != 0)
904 return 0;
905
906 if (count >= HPRE_DBGFS_VAL_MAX_LEN)
907 return -ENOSPC;
908
909 len = simple_write_to_buffer(tbuf, HPRE_DBGFS_VAL_MAX_LEN - 1,
910 pos, buf, count);
911 if (len < 0)
912 return len;
913
914 tbuf[len] = '\0';
915 if (kstrtoul(tbuf, 0, &val))
916 return -EFAULT;
917
918 ret = hisi_qm_get_dfx_access(qm);
919 if (ret)
920 return ret;
921
922 spin_lock_irq(&file->lock);
923 switch (file->type) {
924 case HPRE_CLEAR_ENABLE:
925 ret = hpre_clear_enable_write(file, val);
926 if (ret)
927 goto err_input;
928 break;
929 case HPRE_CLUSTER_CTRL:
930 hpre_cluster_inqry_write(file, val);
931 break;
932 default:
933 ret = -EINVAL;
934 goto err_input;
935 }
936
937 ret = count;
938
939 err_input:
940 spin_unlock_irq(&file->lock);
941 hisi_qm_put_dfx_access(qm);
942 return ret;
943 }
944
945 static const struct file_operations hpre_ctrl_debug_fops = {
946 .owner = THIS_MODULE,
947 .open = simple_open,
948 .read = hpre_ctrl_debug_read,
949 .write = hpre_ctrl_debug_write,
950 };
951
hpre_debugfs_atomic64_get(void * data,u64 * val)952 static int hpre_debugfs_atomic64_get(void *data, u64 *val)
953 {
954 struct hpre_dfx *dfx_item = data;
955
956 *val = atomic64_read(&dfx_item->value);
957
958 return 0;
959 }
960
hpre_debugfs_atomic64_set(void * data,u64 val)961 static int hpre_debugfs_atomic64_set(void *data, u64 val)
962 {
963 struct hpre_dfx *dfx_item = data;
964 struct hpre_dfx *hpre_dfx = NULL;
965
966 if (dfx_item->type == HPRE_OVERTIME_THRHLD) {
967 hpre_dfx = dfx_item - HPRE_OVERTIME_THRHLD;
968 atomic64_set(&hpre_dfx[HPRE_OVER_THRHLD_CNT].value, 0);
969 } else if (val) {
970 return -EINVAL;
971 }
972
973 atomic64_set(&dfx_item->value, val);
974
975 return 0;
976 }
977
978 DEFINE_DEBUGFS_ATTRIBUTE(hpre_atomic64_ops, hpre_debugfs_atomic64_get,
979 hpre_debugfs_atomic64_set, "%llu\n");
980
hpre_create_debugfs_file(struct hisi_qm * qm,struct dentry * dir,enum hpre_ctrl_dbgfs_file type,int indx)981 static int hpre_create_debugfs_file(struct hisi_qm *qm, struct dentry *dir,
982 enum hpre_ctrl_dbgfs_file type, int indx)
983 {
984 struct hpre *hpre = container_of(qm, struct hpre, qm);
985 struct hpre_debug *dbg = &hpre->debug;
986 struct dentry *file_dir;
987
988 if (dir)
989 file_dir = dir;
990 else
991 file_dir = qm->debug.debug_root;
992
993 if (type >= HPRE_DEBUG_FILE_NUM)
994 return -EINVAL;
995
996 spin_lock_init(&dbg->files[indx].lock);
997 dbg->files[indx].debug = dbg;
998 dbg->files[indx].type = type;
999 dbg->files[indx].index = indx;
1000 debugfs_create_file(hpre_debug_file_name[type], 0600, file_dir,
1001 dbg->files + indx, &hpre_ctrl_debug_fops);
1002
1003 return 0;
1004 }
1005
hpre_pf_comm_regs_debugfs_init(struct hisi_qm * qm)1006 static int hpre_pf_comm_regs_debugfs_init(struct hisi_qm *qm)
1007 {
1008 struct device *dev = &qm->pdev->dev;
1009 struct debugfs_regset32 *regset;
1010
1011 regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);
1012 if (!regset)
1013 return -ENOMEM;
1014
1015 regset->regs = hpre_com_dfx_regs;
1016 regset->nregs = ARRAY_SIZE(hpre_com_dfx_regs);
1017 regset->base = qm->io_base;
1018 regset->dev = dev;
1019
1020 debugfs_create_file("regs", 0444, qm->debug.debug_root,
1021 regset, &hpre_com_regs_fops);
1022
1023 return 0;
1024 }
1025
hpre_cluster_debugfs_init(struct hisi_qm * qm)1026 static int hpre_cluster_debugfs_init(struct hisi_qm *qm)
1027 {
1028 struct device *dev = &qm->pdev->dev;
1029 char buf[HPRE_DBGFS_VAL_MAX_LEN];
1030 struct debugfs_regset32 *regset;
1031 struct dentry *tmp_d;
1032 u32 hpre_core_info;
1033 u8 clusters_num;
1034 int i, ret;
1035
1036 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
1037 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
1038 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
1039 for (i = 0; i < clusters_num; i++) {
1040 ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i);
1041 if (ret >= HPRE_DBGFS_VAL_MAX_LEN)
1042 return -EINVAL;
1043 tmp_d = debugfs_create_dir(buf, qm->debug.debug_root);
1044
1045 regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL);
1046 if (!regset)
1047 return -ENOMEM;
1048
1049 regset->regs = hpre_cluster_dfx_regs;
1050 regset->nregs = ARRAY_SIZE(hpre_cluster_dfx_regs);
1051 regset->base = qm->io_base + hpre_cluster_offsets[i];
1052 regset->dev = dev;
1053
1054 debugfs_create_file("regs", 0444, tmp_d, regset,
1055 &hpre_cluster_regs_fops);
1056 ret = hpre_create_debugfs_file(qm, tmp_d, HPRE_CLUSTER_CTRL,
1057 i + HPRE_CLUSTER_CTRL);
1058 if (ret)
1059 return ret;
1060 }
1061
1062 return 0;
1063 }
1064
hpre_ctrl_debug_init(struct hisi_qm * qm)1065 static int hpre_ctrl_debug_init(struct hisi_qm *qm)
1066 {
1067 int ret;
1068
1069 ret = hpre_create_debugfs_file(qm, NULL, HPRE_CLEAR_ENABLE,
1070 HPRE_CLEAR_ENABLE);
1071 if (ret)
1072 return ret;
1073
1074 ret = hpre_pf_comm_regs_debugfs_init(qm);
1075 if (ret)
1076 return ret;
1077
1078 return hpre_cluster_debugfs_init(qm);
1079 }
1080
hpre_cap_regs_show(struct seq_file * s,void * unused)1081 static int hpre_cap_regs_show(struct seq_file *s, void *unused)
1082 {
1083 struct hisi_qm *qm = s->private;
1084 u32 i, size;
1085
1086 size = qm->cap_tables.qm_cap_size;
1087 for (i = 0; i < size; i++)
1088 seq_printf(s, "%s= 0x%08x\n", qm->cap_tables.qm_cap_table[i].name,
1089 qm->cap_tables.qm_cap_table[i].cap_val);
1090
1091 size = qm->cap_tables.dev_cap_size;
1092 for (i = 0; i < size; i++)
1093 seq_printf(s, "%s= 0x%08x\n", qm->cap_tables.dev_cap_table[i].name,
1094 qm->cap_tables.dev_cap_table[i].cap_val);
1095
1096 return 0;
1097 }
1098
1099 DEFINE_SHOW_ATTRIBUTE(hpre_cap_regs);
1100
hpre_dfx_debug_init(struct hisi_qm * qm)1101 static void hpre_dfx_debug_init(struct hisi_qm *qm)
1102 {
1103 struct dfx_diff_registers *hpre_regs = qm->debug.acc_diff_regs;
1104 struct hpre *hpre = container_of(qm, struct hpre, qm);
1105 struct hpre_dfx *dfx = hpre->debug.dfx;
1106 struct dentry *parent;
1107 int i;
1108
1109 parent = debugfs_create_dir("hpre_dfx", qm->debug.debug_root);
1110 for (i = 0; i < HPRE_DFX_FILE_NUM; i++) {
1111 dfx[i].type = i;
1112 debugfs_create_file(hpre_dfx_files[i], 0644, parent, &dfx[i],
1113 &hpre_atomic64_ops);
1114 }
1115
1116 if (qm->fun_type == QM_HW_PF && hpre_regs)
1117 debugfs_create_file("diff_regs", 0444, parent,
1118 qm, &hpre_diff_regs_fops);
1119
1120 debugfs_create_file("cap_regs", CAP_FILE_PERMISSION,
1121 qm->debug.debug_root, qm, &hpre_cap_regs_fops);
1122 }
1123
hpre_debugfs_init(struct hisi_qm * qm)1124 static int hpre_debugfs_init(struct hisi_qm *qm)
1125 {
1126 struct device *dev = &qm->pdev->dev;
1127 int ret;
1128
1129 ret = hisi_qm_regs_debugfs_init(qm, hpre_diff_regs, ARRAY_SIZE(hpre_diff_regs));
1130 if (ret) {
1131 dev_warn(dev, "Failed to init HPRE diff regs!\n");
1132 return ret;
1133 }
1134
1135 qm->debug.debug_root = debugfs_create_dir(dev_name(dev),
1136 hpre_debugfs_root);
1137 qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET;
1138 qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN;
1139
1140 hisi_qm_debug_init(qm);
1141
1142 if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) {
1143 ret = hpre_ctrl_debug_init(qm);
1144 if (ret)
1145 goto debugfs_remove;
1146 }
1147
1148 hpre_dfx_debug_init(qm);
1149
1150 return 0;
1151
1152 debugfs_remove:
1153 debugfs_remove_recursive(qm->debug.debug_root);
1154 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
1155 return ret;
1156 }
1157
hpre_debugfs_exit(struct hisi_qm * qm)1158 static void hpre_debugfs_exit(struct hisi_qm *qm)
1159 {
1160 debugfs_remove_recursive(qm->debug.debug_root);
1161
1162 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs));
1163 }
1164
hpre_pre_store_cap_reg(struct hisi_qm * qm)1165 static int hpre_pre_store_cap_reg(struct hisi_qm *qm)
1166 {
1167 struct hisi_qm_cap_record *hpre_cap;
1168 struct device *dev = &qm->pdev->dev;
1169 u32 hpre_core_info;
1170 u8 clusters_num;
1171 size_t i, size;
1172
1173 size = ARRAY_SIZE(hpre_cap_query_info);
1174 hpre_cap = devm_kzalloc(dev, sizeof(*hpre_cap) * size, GFP_KERNEL);
1175 if (!hpre_cap)
1176 return -ENOMEM;
1177
1178 for (i = 0; i < size; i++) {
1179 hpre_cap[i].type = hpre_cap_query_info[i].type;
1180 hpre_cap[i].name = hpre_cap_query_info[i].name;
1181 hpre_cap[i].cap_val = hisi_qm_get_cap_value(qm, hpre_cap_query_info,
1182 i, qm->cap_ver);
1183 }
1184
1185 hpre_core_info = hpre_cap[HPRE_CORE_INFO].cap_val;
1186 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
1187 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
1188 if (clusters_num > HPRE_CLUSTERS_NUM_MAX) {
1189 dev_err(dev, "Device cluster num %u is out of range for driver supports %d!\n",
1190 clusters_num, HPRE_CLUSTERS_NUM_MAX);
1191 return -EINVAL;
1192 }
1193
1194 qm->cap_tables.dev_cap_table = hpre_cap;
1195 qm->cap_tables.dev_cap_size = size;
1196
1197 return 0;
1198 }
1199
hpre_qm_init(struct hisi_qm * qm,struct pci_dev * pdev)1200 static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
1201 {
1202 u64 alg_msk;
1203 int ret;
1204
1205 if (pdev->revision == QM_HW_V1) {
1206 pci_warn(pdev, "HPRE version 1 is not supported!\n");
1207 return -EINVAL;
1208 }
1209
1210 qm->mode = uacce_mode;
1211 qm->pdev = pdev;
1212 qm->ver = pdev->revision;
1213 qm->sqe_size = HPRE_SQE_SIZE;
1214 qm->dev_name = hpre_name;
1215
1216 qm->fun_type = (pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) ?
1217 QM_HW_PF : QM_HW_VF;
1218 if (qm->fun_type == QM_HW_PF) {
1219 qm->qp_base = HPRE_PF_DEF_Q_BASE;
1220 qm->qp_num = pf_q_num;
1221 qm->debug.curr_qm_qp_num = pf_q_num;
1222 qm->qm_list = &hpre_devices;
1223 qm->err_ini = &hpre_err_ini;
1224 if (pf_q_num_flag)
1225 set_bit(QM_MODULE_PARAM, &qm->misc_ctl);
1226 }
1227
1228 ret = hisi_qm_init(qm);
1229 if (ret) {
1230 pci_err(pdev, "Failed to init hpre qm configures!\n");
1231 return ret;
1232 }
1233
1234 /* Fetch and save the value of capability registers */
1235 ret = hpre_pre_store_cap_reg(qm);
1236 if (ret) {
1237 pci_err(pdev, "Failed to pre-store capability registers!\n");
1238 hisi_qm_uninit(qm);
1239 return ret;
1240 }
1241
1242 alg_msk = qm->cap_tables.dev_cap_table[HPRE_ALG_BITMAP].cap_val;
1243 ret = hisi_qm_set_algs(qm, alg_msk, hpre_dev_algs, ARRAY_SIZE(hpre_dev_algs));
1244 if (ret) {
1245 pci_err(pdev, "Failed to set hpre algs!\n");
1246 hisi_qm_uninit(qm);
1247 }
1248
1249 return ret;
1250 }
1251
hpre_show_last_regs_init(struct hisi_qm * qm)1252 static int hpre_show_last_regs_init(struct hisi_qm *qm)
1253 {
1254 int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs);
1255 int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs);
1256 struct qm_debug *debug = &qm->debug;
1257 void __iomem *io_base;
1258 u32 hpre_core_info;
1259 u8 clusters_num;
1260 int i, j, idx;
1261
1262 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
1263 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
1264 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
1265 debug->last_words = kcalloc(cluster_dfx_regs_num * clusters_num +
1266 com_dfx_regs_num, sizeof(unsigned int), GFP_KERNEL);
1267 if (!debug->last_words)
1268 return -ENOMEM;
1269
1270 for (i = 0; i < com_dfx_regs_num; i++)
1271 debug->last_words[i] = readl_relaxed(qm->io_base +
1272 hpre_com_dfx_regs[i].offset);
1273
1274 for (i = 0; i < clusters_num; i++) {
1275 io_base = qm->io_base + hpre_cluster_offsets[i];
1276 for (j = 0; j < cluster_dfx_regs_num; j++) {
1277 idx = com_dfx_regs_num + i * cluster_dfx_regs_num + j;
1278 debug->last_words[idx] = readl_relaxed(
1279 io_base + hpre_cluster_dfx_regs[j].offset);
1280 }
1281 }
1282
1283 return 0;
1284 }
1285
hpre_show_last_regs_uninit(struct hisi_qm * qm)1286 static void hpre_show_last_regs_uninit(struct hisi_qm *qm)
1287 {
1288 struct qm_debug *debug = &qm->debug;
1289
1290 if (qm->fun_type == QM_HW_VF || !debug->last_words)
1291 return;
1292
1293 kfree(debug->last_words);
1294 debug->last_words = NULL;
1295 }
1296
hpre_show_last_dfx_regs(struct hisi_qm * qm)1297 static void hpre_show_last_dfx_regs(struct hisi_qm *qm)
1298 {
1299 int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs);
1300 int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs);
1301 struct qm_debug *debug = &qm->debug;
1302 struct pci_dev *pdev = qm->pdev;
1303 void __iomem *io_base;
1304 u32 hpre_core_info;
1305 u8 clusters_num;
1306 int i, j, idx;
1307 u32 val;
1308
1309 if (qm->fun_type == QM_HW_VF || !debug->last_words)
1310 return;
1311
1312 /* dumps last word of the debugging registers during controller reset */
1313 for (i = 0; i < com_dfx_regs_num; i++) {
1314 val = readl_relaxed(qm->io_base + hpre_com_dfx_regs[i].offset);
1315 if (debug->last_words[i] != val)
1316 pci_info(pdev, "Common_core:%s \t= 0x%08x => 0x%08x\n",
1317 hpre_com_dfx_regs[i].name, debug->last_words[i], val);
1318 }
1319
1320 hpre_core_info = qm->cap_tables.dev_cap_table[HPRE_CORE_INFO].cap_val;
1321 clusters_num = (hpre_core_info >> hpre_basic_info[HPRE_CLUSTER_NUM_CAP].shift) &
1322 hpre_basic_info[HPRE_CLUSTER_NUM_CAP].mask;
1323 for (i = 0; i < clusters_num; i++) {
1324 io_base = qm->io_base + hpre_cluster_offsets[i];
1325 for (j = 0; j < cluster_dfx_regs_num; j++) {
1326 val = readl_relaxed(io_base +
1327 hpre_cluster_dfx_regs[j].offset);
1328 idx = com_dfx_regs_num + i * cluster_dfx_regs_num + j;
1329 if (debug->last_words[idx] != val)
1330 pci_info(pdev, "cluster-%d:%s \t= 0x%08x => 0x%08x\n",
1331 i, hpre_cluster_dfx_regs[j].name, debug->last_words[idx], val);
1332 }
1333 }
1334 }
1335
hpre_log_hw_error(struct hisi_qm * qm,u32 err_sts)1336 static void hpre_log_hw_error(struct hisi_qm *qm, u32 err_sts)
1337 {
1338 const struct hpre_hw_error *err = hpre_hw_errors;
1339 struct device *dev = &qm->pdev->dev;
1340
1341 while (err->msg) {
1342 if (err->int_msk & err_sts)
1343 dev_warn(dev, "%s [error status=0x%x] found\n",
1344 err->msg, err->int_msk);
1345 err++;
1346 }
1347 }
1348
hpre_get_hw_err_status(struct hisi_qm * qm)1349 static u32 hpre_get_hw_err_status(struct hisi_qm *qm)
1350 {
1351 return readl(qm->io_base + HPRE_INT_STATUS);
1352 }
1353
hpre_clear_hw_err_status(struct hisi_qm * qm,u32 err_sts)1354 static void hpre_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts)
1355 {
1356 writel(err_sts, qm->io_base + HPRE_HAC_SOURCE_INT);
1357 }
1358
hpre_disable_error_report(struct hisi_qm * qm,u32 err_type)1359 static void hpre_disable_error_report(struct hisi_qm *qm, u32 err_type)
1360 {
1361 u32 nfe_mask;
1362
1363 nfe_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver);
1364 writel(nfe_mask & (~err_type), qm->io_base + HPRE_RAS_NFE_ENB);
1365 }
1366
hpre_open_axi_master_ooo(struct hisi_qm * qm)1367 static void hpre_open_axi_master_ooo(struct hisi_qm *qm)
1368 {
1369 u32 value;
1370
1371 value = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB);
1372 writel(value & ~HPRE_AM_OOO_SHUTDOWN_ENABLE,
1373 qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB);
1374 writel(value | HPRE_AM_OOO_SHUTDOWN_ENABLE,
1375 qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB);
1376 }
1377
hpre_get_err_result(struct hisi_qm * qm)1378 static enum acc_err_result hpre_get_err_result(struct hisi_qm *qm)
1379 {
1380 u32 err_status;
1381
1382 err_status = hpre_get_hw_err_status(qm);
1383 if (err_status) {
1384 if (err_status & qm->err_info.ecc_2bits_mask)
1385 qm->err_status.is_dev_ecc_mbit = true;
1386 hpre_log_hw_error(qm, err_status);
1387
1388 if (err_status & qm->err_info.dev_reset_mask) {
1389 /* Disable the same error reporting until device is recovered. */
1390 hpre_disable_error_report(qm, err_status);
1391 return ACC_ERR_NEED_RESET;
1392 }
1393 hpre_clear_hw_err_status(qm, err_status);
1394 }
1395
1396 return ACC_ERR_RECOVERED;
1397 }
1398
hpre_err_info_init(struct hisi_qm * qm)1399 static void hpre_err_info_init(struct hisi_qm *qm)
1400 {
1401 struct hisi_qm_err_info *err_info = &qm->err_info;
1402
1403 err_info->fe = HPRE_HAC_RAS_FE_ENABLE;
1404 err_info->ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_CE_MASK_CAP, qm->cap_ver);
1405 err_info->nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_NFE_MASK_CAP, qm->cap_ver);
1406 err_info->ecc_2bits_mask = HPRE_CORE_ECC_2BIT_ERR | HPRE_OOO_ECC_2BIT_ERR;
1407 err_info->dev_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info,
1408 HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
1409 err_info->qm_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info,
1410 HPRE_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
1411 err_info->qm_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info,
1412 HPRE_QM_RESET_MASK_CAP, qm->cap_ver);
1413 err_info->dev_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info,
1414 HPRE_RESET_MASK_CAP, qm->cap_ver);
1415 err_info->msi_wr_port = HPRE_WR_MSI_PORT;
1416 err_info->acpi_rst = "HRST";
1417 }
1418
1419 static const struct hisi_qm_err_ini hpre_err_ini = {
1420 .hw_init = hpre_set_user_domain_and_cache,
1421 .hw_err_enable = hpre_hw_error_enable,
1422 .hw_err_disable = hpre_hw_error_disable,
1423 .get_dev_hw_err_status = hpre_get_hw_err_status,
1424 .clear_dev_hw_err_status = hpre_clear_hw_err_status,
1425 .open_axi_master_ooo = hpre_open_axi_master_ooo,
1426 .open_sva_prefetch = hpre_open_sva_prefetch,
1427 .close_sva_prefetch = hpre_close_sva_prefetch,
1428 .show_last_dfx_regs = hpre_show_last_dfx_regs,
1429 .err_info_init = hpre_err_info_init,
1430 .get_err_result = hpre_get_err_result,
1431 };
1432
hpre_pf_probe_init(struct hpre * hpre)1433 static int hpre_pf_probe_init(struct hpre *hpre)
1434 {
1435 struct hisi_qm *qm = &hpre->qm;
1436 int ret;
1437
1438 ret = hpre_set_user_domain_and_cache(qm);
1439 if (ret)
1440 return ret;
1441
1442 hpre_open_sva_prefetch(qm);
1443
1444 hisi_qm_dev_err_init(qm);
1445 ret = hpre_show_last_regs_init(qm);
1446 if (ret)
1447 pci_err(qm->pdev, "Failed to init last word regs!\n");
1448
1449 return ret;
1450 }
1451
hpre_probe_init(struct hpre * hpre)1452 static int hpre_probe_init(struct hpre *hpre)
1453 {
1454 u32 type_rate = HPRE_SHAPER_TYPE_RATE;
1455 struct hisi_qm *qm = &hpre->qm;
1456 int ret;
1457
1458 if (qm->fun_type == QM_HW_PF) {
1459 ret = hpre_pf_probe_init(hpre);
1460 if (ret)
1461 return ret;
1462 /* Enable shaper type 0 */
1463 if (qm->ver >= QM_HW_V3) {
1464 type_rate |= QM_SHAPER_ENABLE;
1465 qm->type_rate = type_rate;
1466 }
1467 }
1468
1469 return 0;
1470 }
1471
hpre_probe_uninit(struct hisi_qm * qm)1472 static void hpre_probe_uninit(struct hisi_qm *qm)
1473 {
1474 if (qm->fun_type == QM_HW_VF)
1475 return;
1476
1477 hpre_cnt_regs_clear(qm);
1478 qm->debug.curr_qm_qp_num = 0;
1479 hpre_show_last_regs_uninit(qm);
1480 hpre_close_sva_prefetch(qm);
1481 hisi_qm_dev_err_uninit(qm);
1482 }
1483
hpre_probe(struct pci_dev * pdev,const struct pci_device_id * id)1484 static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1485 {
1486 struct hisi_qm *qm;
1487 struct hpre *hpre;
1488 int ret;
1489
1490 hpre = devm_kzalloc(&pdev->dev, sizeof(*hpre), GFP_KERNEL);
1491 if (!hpre)
1492 return -ENOMEM;
1493
1494 qm = &hpre->qm;
1495 ret = hpre_qm_init(qm, pdev);
1496 if (ret) {
1497 pci_err(pdev, "Failed to init HPRE QM (%d)!\n", ret);
1498 return ret;
1499 }
1500
1501 ret = hpre_probe_init(hpre);
1502 if (ret) {
1503 pci_err(pdev, "Failed to probe (%d)!\n", ret);
1504 goto err_with_qm_init;
1505 }
1506
1507 ret = hisi_qm_start(qm);
1508 if (ret)
1509 goto err_with_probe_init;
1510
1511 ret = hpre_debugfs_init(qm);
1512 if (ret)
1513 dev_warn(&pdev->dev, "init debugfs fail!\n");
1514
1515 hisi_qm_add_list(qm, &hpre_devices);
1516 ret = hisi_qm_alg_register(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF);
1517 if (ret < 0) {
1518 pci_err(pdev, "fail to register algs to crypto!\n");
1519 goto err_qm_del_list;
1520 }
1521
1522 if (qm->uacce) {
1523 ret = uacce_register(qm->uacce);
1524 if (ret) {
1525 pci_err(pdev, "failed to register uacce (%d)!\n", ret);
1526 goto err_with_alg_register;
1527 }
1528 }
1529
1530 if (qm->fun_type == QM_HW_PF && vfs_num) {
1531 ret = hisi_qm_sriov_enable(pdev, vfs_num);
1532 if (ret < 0)
1533 goto err_with_alg_register;
1534 }
1535
1536 hisi_qm_pm_init(qm);
1537
1538 return 0;
1539
1540 err_with_alg_register:
1541 hisi_qm_alg_unregister(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF);
1542
1543 err_qm_del_list:
1544 hisi_qm_del_list(qm, &hpre_devices);
1545 hpre_debugfs_exit(qm);
1546 hisi_qm_stop(qm, QM_NORMAL);
1547
1548 err_with_probe_init:
1549 hpre_probe_uninit(qm);
1550
1551 err_with_qm_init:
1552 hisi_qm_uninit(qm);
1553
1554 return ret;
1555 }
1556
hpre_remove(struct pci_dev * pdev)1557 static void hpre_remove(struct pci_dev *pdev)
1558 {
1559 struct hisi_qm *qm = pci_get_drvdata(pdev);
1560
1561 hisi_qm_pm_uninit(qm);
1562 hisi_qm_wait_task_finish(qm, &hpre_devices);
1563 hisi_qm_alg_unregister(qm, &hpre_devices, HPRE_CTX_Q_NUM_DEF);
1564 hisi_qm_del_list(qm, &hpre_devices);
1565 if (qm->fun_type == QM_HW_PF && qm->vfs_num)
1566 hisi_qm_sriov_disable(pdev, true);
1567
1568 hpre_debugfs_exit(qm);
1569 hisi_qm_stop(qm, QM_NORMAL);
1570
1571 hpre_probe_uninit(qm);
1572 hisi_qm_uninit(qm);
1573 }
1574
1575 static const struct dev_pm_ops hpre_pm_ops = {
1576 SET_RUNTIME_PM_OPS(hisi_qm_suspend, hisi_qm_resume, NULL)
1577 };
1578
1579 static const struct pci_error_handlers hpre_err_handler = {
1580 .error_detected = hisi_qm_dev_err_detected,
1581 .slot_reset = hisi_qm_dev_slot_reset,
1582 .reset_prepare = hisi_qm_reset_prepare,
1583 .reset_done = hisi_qm_reset_done,
1584 };
1585
1586 static struct pci_driver hpre_pci_driver = {
1587 .name = hpre_name,
1588 .id_table = hpre_dev_ids,
1589 .probe = hpre_probe,
1590 .remove = hpre_remove,
1591 .sriov_configure = IS_ENABLED(CONFIG_PCI_IOV) ?
1592 hisi_qm_sriov_configure : NULL,
1593 .err_handler = &hpre_err_handler,
1594 .shutdown = hisi_qm_dev_shutdown,
1595 .driver.pm = &hpre_pm_ops,
1596 };
1597
hisi_hpre_get_pf_driver(void)1598 struct pci_driver *hisi_hpre_get_pf_driver(void)
1599 {
1600 return &hpre_pci_driver;
1601 }
1602 EXPORT_SYMBOL_GPL(hisi_hpre_get_pf_driver);
1603
hpre_register_debugfs(void)1604 static void hpre_register_debugfs(void)
1605 {
1606 if (!debugfs_initialized())
1607 return;
1608
1609 hpre_debugfs_root = debugfs_create_dir(hpre_name, NULL);
1610 }
1611
hpre_unregister_debugfs(void)1612 static void hpre_unregister_debugfs(void)
1613 {
1614 debugfs_remove_recursive(hpre_debugfs_root);
1615 }
1616
hpre_init(void)1617 static int __init hpre_init(void)
1618 {
1619 int ret;
1620
1621 hisi_qm_init_list(&hpre_devices);
1622 hpre_register_debugfs();
1623
1624 ret = pci_register_driver(&hpre_pci_driver);
1625 if (ret) {
1626 hpre_unregister_debugfs();
1627 pr_err("hpre: can't register hisi hpre driver.\n");
1628 }
1629
1630 return ret;
1631 }
1632
hpre_exit(void)1633 static void __exit hpre_exit(void)
1634 {
1635 pci_unregister_driver(&hpre_pci_driver);
1636 hpre_unregister_debugfs();
1637 }
1638
1639 module_init(hpre_init);
1640 module_exit(hpre_exit);
1641
1642 MODULE_LICENSE("GPL v2");
1643 MODULE_AUTHOR("Zaibo Xu <xuzaibo@huawei.com>");
1644 MODULE_AUTHOR("Meng Yu <yumeng18@huawei.com>");
1645 MODULE_DESCRIPTION("Driver for HiSilicon HPRE accelerator");
1646