1a4b16dadSTom Zanussi // SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
2a4b16dadSTom Zanussi /* Copyright(c) 2020 - 2021 Intel Corporation */
3a4b16dadSTom Zanussi #include <linux/iopoll.h>
4a4b16dadSTom Zanussi #include <adf_accel_devices.h>
5a4b16dadSTom Zanussi #include <adf_cfg.h>
6*a3eb0109SGiovanni Cabiddu #include <adf_cfg_services.h>
7e2980ba5SDamian Muszynski #include <adf_clock.h>
8a4b16dadSTom Zanussi #include <adf_common_drv.h>
9a4b16dadSTom Zanussi #include <adf_gen4_dc.h>
10a4b16dadSTom Zanussi #include <adf_gen4_hw_data.h>
11a4b16dadSTom Zanussi #include <adf_gen4_pfvf.h>
12a4b16dadSTom Zanussi #include <adf_gen4_pm.h>
13fd77d8daSDamian Muszynski #include <adf_gen4_timer.h>
14a4b16dadSTom Zanussi #include "adf_4xxx_hw_data.h"
15a4b16dadSTom Zanussi #include "icp_qat_hw.h"
16a4b16dadSTom Zanussi 
1704985fb7SGiovanni Cabiddu #define ADF_AE_GROUP_0		GENMASK(3, 0)
1804985fb7SGiovanni Cabiddu #define ADF_AE_GROUP_1		GENMASK(7, 4)
1904985fb7SGiovanni Cabiddu #define ADF_AE_GROUP_2		BIT(8)
2004985fb7SGiovanni Cabiddu 
2110484c64SGiovanni Cabiddu enum adf_fw_objs {
2210484c64SGiovanni Cabiddu 	ADF_FW_SYM_OBJ,
2310484c64SGiovanni Cabiddu 	ADF_FW_ASYM_OBJ,
2410484c64SGiovanni Cabiddu 	ADF_FW_DC_OBJ,
2510484c64SGiovanni Cabiddu 	ADF_FW_ADMIN_OBJ,
2610484c64SGiovanni Cabiddu };
2710484c64SGiovanni Cabiddu 
2810484c64SGiovanni Cabiddu static const char * const adf_4xxx_fw_objs[] = {
2910484c64SGiovanni Cabiddu 	[ADF_FW_SYM_OBJ] =  ADF_4XXX_SYM_OBJ,
3010484c64SGiovanni Cabiddu 	[ADF_FW_ASYM_OBJ] =  ADF_4XXX_ASYM_OBJ,
3110484c64SGiovanni Cabiddu 	[ADF_FW_DC_OBJ] =  ADF_4XXX_DC_OBJ,
3210484c64SGiovanni Cabiddu 	[ADF_FW_ADMIN_OBJ] = ADF_4XXX_ADMIN_OBJ,
3310484c64SGiovanni Cabiddu };
3410484c64SGiovanni Cabiddu 
3510484c64SGiovanni Cabiddu static const char * const adf_402xx_fw_objs[] = {
3610484c64SGiovanni Cabiddu 	[ADF_FW_SYM_OBJ] =  ADF_402XX_SYM_OBJ,
3710484c64SGiovanni Cabiddu 	[ADF_FW_ASYM_OBJ] =  ADF_402XX_ASYM_OBJ,
3810484c64SGiovanni Cabiddu 	[ADF_FW_DC_OBJ] =  ADF_402XX_DC_OBJ,
3910484c64SGiovanni Cabiddu 	[ADF_FW_ADMIN_OBJ] = ADF_402XX_ADMIN_OBJ,
4010484c64SGiovanni Cabiddu };
4110484c64SGiovanni Cabiddu 
42a4b16dadSTom Zanussi struct adf_fw_config {
43a4b16dadSTom Zanussi 	u32 ae_mask;
4410484c64SGiovanni Cabiddu 	enum adf_fw_objs obj;
45a4b16dadSTom Zanussi };
46a4b16dadSTom Zanussi 
4710484c64SGiovanni Cabiddu static const struct adf_fw_config adf_fw_cy_config[] = {
4804985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_SYM_OBJ},
4904985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_ASYM_OBJ},
5004985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
51a4b16dadSTom Zanussi };
52a4b16dadSTom Zanussi 
5310484c64SGiovanni Cabiddu static const struct adf_fw_config adf_fw_dc_config[] = {
5404985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_DC_OBJ},
5504985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_DC_OBJ},
5604985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
57a4b16dadSTom Zanussi };
58a4b16dadSTom Zanussi 
5950053275SAdam Guerin static const struct adf_fw_config adf_fw_sym_config[] = {
6004985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_SYM_OBJ},
6104985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_SYM_OBJ},
6204985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
6350053275SAdam Guerin };
6450053275SAdam Guerin 
6550053275SAdam Guerin static const struct adf_fw_config adf_fw_asym_config[] = {
6604985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_ASYM_OBJ},
6704985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_ASYM_OBJ},
6804985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
6950053275SAdam Guerin };
7050053275SAdam Guerin 
7150053275SAdam Guerin static const struct adf_fw_config adf_fw_asym_dc_config[] = {
7204985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_ASYM_OBJ},
7304985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_DC_OBJ},
7404985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
7550053275SAdam Guerin };
7650053275SAdam Guerin 
7750053275SAdam Guerin static const struct adf_fw_config adf_fw_sym_dc_config[] = {
7804985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_SYM_OBJ},
7904985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_DC_OBJ},
8004985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
8150053275SAdam Guerin };
8250053275SAdam Guerin 
832e513f6bSAdam Guerin static const struct adf_fw_config adf_fw_dcc_config[] = {
8404985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_1, ADF_FW_DC_OBJ},
8504985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_0, ADF_FW_SYM_OBJ},
8604985fb7SGiovanni Cabiddu 	{ADF_AE_GROUP_2, ADF_FW_ADMIN_OBJ},
872e513f6bSAdam Guerin };
882e513f6bSAdam Guerin 
8910484c64SGiovanni Cabiddu static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_dc_config));
9050053275SAdam Guerin static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_sym_config));
9150053275SAdam Guerin static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_asym_config));
9250053275SAdam Guerin static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_asym_dc_config));
9350053275SAdam Guerin static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_sym_dc_config));
942e513f6bSAdam Guerin static_assert(ARRAY_SIZE(adf_fw_cy_config) == ARRAY_SIZE(adf_fw_dcc_config));
95a4b16dadSTom Zanussi 
96a4b16dadSTom Zanussi /* Worker thread to service arbiter mappings */
9750053275SAdam Guerin static const u32 default_thrd_to_arb_map[ADF_4XXX_MAX_ACCELENGINES] = {
98a4b16dadSTom Zanussi 	0x5555555, 0x5555555, 0x5555555, 0x5555555,
99a4b16dadSTom Zanussi 	0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA,
100a4b16dadSTom Zanussi 	0x0
101a4b16dadSTom Zanussi };
102a4b16dadSTom Zanussi 
103a4b16dadSTom Zanussi static const u32 thrd_to_arb_map_dc[ADF_4XXX_MAX_ACCELENGINES] = {
104a4b16dadSTom Zanussi 	0x000000FF, 0x000000FF, 0x000000FF, 0x000000FF,
105a4b16dadSTom Zanussi 	0x000000FF, 0x000000FF, 0x000000FF, 0x000000FF,
106a4b16dadSTom Zanussi 	0x0
107a4b16dadSTom Zanussi };
108a4b16dadSTom Zanussi 
1092e513f6bSAdam Guerin static const u32 thrd_to_arb_map_dcc[ADF_4XXX_MAX_ACCELENGINES] = {
1102e513f6bSAdam Guerin 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
1112e513f6bSAdam Guerin 	0x0000FFFF, 0x0000FFFF, 0x0000FFFF, 0x0000FFFF,
1122e513f6bSAdam Guerin 	0x0
1132e513f6bSAdam Guerin };
1142e513f6bSAdam Guerin 
115a4b16dadSTom Zanussi static struct adf_hw_device_class adf_4xxx_class = {
116a4b16dadSTom Zanussi 	.name = ADF_4XXX_DEVICE_NAME,
117a4b16dadSTom Zanussi 	.type = DEV_4XXX,
118a4b16dadSTom Zanussi 	.instances = 0,
119a4b16dadSTom Zanussi };
120a4b16dadSTom Zanussi 
121a4b16dadSTom Zanussi static int get_service_enabled(struct adf_accel_dev *accel_dev)
122a4b16dadSTom Zanussi {
123a4b16dadSTom Zanussi 	char services[ADF_CFG_MAX_VAL_LEN_IN_BYTES] = {0};
124a4b16dadSTom Zanussi 	int ret;
125a4b16dadSTom Zanussi 
126a4b16dadSTom Zanussi 	ret = adf_cfg_get_param_value(accel_dev, ADF_GENERAL_SEC,
127a4b16dadSTom Zanussi 				      ADF_SERVICES_ENABLED, services);
128a4b16dadSTom Zanussi 	if (ret) {
129a4b16dadSTom Zanussi 		dev_err(&GET_DEV(accel_dev),
130a4b16dadSTom Zanussi 			ADF_SERVICES_ENABLED " param not found\n");
131a4b16dadSTom Zanussi 		return ret;
132a4b16dadSTom Zanussi 	}
133a4b16dadSTom Zanussi 
134b7284784SGiovanni Cabiddu 	ret = match_string(adf_cfg_services, ARRAY_SIZE(adf_cfg_services),
135a4b16dadSTom Zanussi 			   services);
136a4b16dadSTom Zanussi 	if (ret < 0)
137a4b16dadSTom Zanussi 		dev_err(&GET_DEV(accel_dev),
138a4b16dadSTom Zanussi 			"Invalid value of " ADF_SERVICES_ENABLED " param: %s\n",
139a4b16dadSTom Zanussi 			services);
140a4b16dadSTom Zanussi 
141a4b16dadSTom Zanussi 	return ret;
142a4b16dadSTom Zanussi }
143a4b16dadSTom Zanussi 
144a4b16dadSTom Zanussi static u32 get_accel_mask(struct adf_hw_device_data *self)
145a4b16dadSTom Zanussi {
146a4b16dadSTom Zanussi 	return ADF_4XXX_ACCELERATORS_MASK;
147a4b16dadSTom Zanussi }
148a4b16dadSTom Zanussi 
149a4b16dadSTom Zanussi static u32 get_ae_mask(struct adf_hw_device_data *self)
150a4b16dadSTom Zanussi {
151a4b16dadSTom Zanussi 	u32 me_disable = self->fuses;
152a4b16dadSTom Zanussi 
153a4b16dadSTom Zanussi 	return ~me_disable & ADF_4XXX_ACCELENGINES_MASK;
154a4b16dadSTom Zanussi }
155a4b16dadSTom Zanussi 
156a4b16dadSTom Zanussi static u32 get_num_accels(struct adf_hw_device_data *self)
157a4b16dadSTom Zanussi {
158a4b16dadSTom Zanussi 	return ADF_4XXX_MAX_ACCELERATORS;
159a4b16dadSTom Zanussi }
160a4b16dadSTom Zanussi 
161a4b16dadSTom Zanussi static u32 get_num_aes(struct adf_hw_device_data *self)
162a4b16dadSTom Zanussi {
163a4b16dadSTom Zanussi 	if (!self || !self->ae_mask)
164a4b16dadSTom Zanussi 		return 0;
165a4b16dadSTom Zanussi 
166a4b16dadSTom Zanussi 	return hweight32(self->ae_mask);
167a4b16dadSTom Zanussi }
168a4b16dadSTom Zanussi 
169a4b16dadSTom Zanussi static u32 get_misc_bar_id(struct adf_hw_device_data *self)
170a4b16dadSTom Zanussi {
171a4b16dadSTom Zanussi 	return ADF_4XXX_PMISC_BAR;
172a4b16dadSTom Zanussi }
173a4b16dadSTom Zanussi 
174a4b16dadSTom Zanussi static u32 get_etr_bar_id(struct adf_hw_device_data *self)
175a4b16dadSTom Zanussi {
176a4b16dadSTom Zanussi 	return ADF_4XXX_ETR_BAR;
177a4b16dadSTom Zanussi }
178a4b16dadSTom Zanussi 
179a4b16dadSTom Zanussi static u32 get_sram_bar_id(struct adf_hw_device_data *self)
180a4b16dadSTom Zanussi {
181a4b16dadSTom Zanussi 	return ADF_4XXX_SRAM_BAR;
182a4b16dadSTom Zanussi }
183a4b16dadSTom Zanussi 
184a4b16dadSTom Zanussi /*
185a4b16dadSTom Zanussi  * The vector routing table is used to select the MSI-X entry to use for each
186a4b16dadSTom Zanussi  * interrupt source.
187a4b16dadSTom Zanussi  * The first ADF_4XXX_ETR_MAX_BANKS entries correspond to ring interrupts.
188a4b16dadSTom Zanussi  * The final entry corresponds to VF2PF or error interrupts.
189a4b16dadSTom Zanussi  * This vector table could be used to configure one MSI-X entry to be shared
190a4b16dadSTom Zanussi  * between multiple interrupt sources.
191a4b16dadSTom Zanussi  *
192a4b16dadSTom Zanussi  * The default routing is set to have a one to one correspondence between the
193a4b16dadSTom Zanussi  * interrupt source and the MSI-X entry used.
194a4b16dadSTom Zanussi  */
195a4b16dadSTom Zanussi static void set_msix_default_rttable(struct adf_accel_dev *accel_dev)
196a4b16dadSTom Zanussi {
197a4b16dadSTom Zanussi 	void __iomem *csr;
198a4b16dadSTom Zanussi 	int i;
199a4b16dadSTom Zanussi 
200a4b16dadSTom Zanussi 	csr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;
201a4b16dadSTom Zanussi 	for (i = 0; i <= ADF_4XXX_ETR_MAX_BANKS; i++)
202a4b16dadSTom Zanussi 		ADF_CSR_WR(csr, ADF_4XXX_MSIX_RTTABLE_OFFSET(i), i);
203a4b16dadSTom Zanussi }
204a4b16dadSTom Zanussi 
205a4b16dadSTom Zanussi static u32 get_accel_cap(struct adf_accel_dev *accel_dev)
206a4b16dadSTom Zanussi {
207a4b16dadSTom Zanussi 	struct pci_dev *pdev = accel_dev->accel_pci_dev.pci_dev;
20850053275SAdam Guerin 	u32 capabilities_sym, capabilities_asym, capabilities_dc;
2092e513f6bSAdam Guerin 	u32 capabilities_dcc;
210a4b16dadSTom Zanussi 	u32 fusectl1;
211a4b16dadSTom Zanussi 
212a4b16dadSTom Zanussi 	/* Read accelerator capabilities mask */
213a4b16dadSTom Zanussi 	pci_read_config_dword(pdev, ADF_4XXX_FUSECTL1_OFFSET, &fusectl1);
214a4b16dadSTom Zanussi 
21550053275SAdam Guerin 	capabilities_sym = ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC |
216a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_CIPHER |
217a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_AUTHENTICATION |
218a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_SHA3 |
219a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_SHA3_EXT |
220a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_HKDF |
221a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_CHACHA_POLY |
222a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_AESGCM_SPC |
223fab9516fSAdam Guerin 			  ICP_ACCEL_CAPABILITIES_SM3 |
224fab9516fSAdam Guerin 			  ICP_ACCEL_CAPABILITIES_SM4 |
225a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_AES_V2;
226a4b16dadSTom Zanussi 
227a4b16dadSTom Zanussi 	/* A set bit in fusectl1 means the feature is OFF in this SKU */
228a4b16dadSTom Zanussi 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_CIPHER_SLICE) {
22950053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC;
23050053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_HKDF;
23150053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
232a4b16dadSTom Zanussi 	}
23350053275SAdam Guerin 
234a4b16dadSTom Zanussi 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_UCS_SLICE) {
23550053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CHACHA_POLY;
23650053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_AESGCM_SPC;
23750053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_AES_V2;
23850053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
239a4b16dadSTom Zanussi 	}
24050053275SAdam Guerin 
241a4b16dadSTom Zanussi 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_AUTH_SLICE) {
24250053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_AUTHENTICATION;
24350053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SHA3;
24450053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SHA3_EXT;
24550053275SAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_CIPHER;
246a4b16dadSTom Zanussi 	}
24750053275SAdam Guerin 
248fab9516fSAdam Guerin 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_SMX_SLICE) {
249fab9516fSAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SM3;
250fab9516fSAdam Guerin 		capabilities_sym &= ~ICP_ACCEL_CAPABILITIES_SM4;
251fab9516fSAdam Guerin 	}
252fab9516fSAdam Guerin 
25350053275SAdam Guerin 	capabilities_asym = ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC |
25450053275SAdam Guerin 			  ICP_ACCEL_CAPABILITIES_CIPHER |
255fab9516fSAdam Guerin 			  ICP_ACCEL_CAPABILITIES_SM2 |
25650053275SAdam Guerin 			  ICP_ACCEL_CAPABILITIES_ECEDMONT;
25750053275SAdam Guerin 
258a4b16dadSTom Zanussi 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_PKE_SLICE) {
25950053275SAdam Guerin 		capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC;
260fab9516fSAdam Guerin 		capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_SM2;
26150053275SAdam Guerin 		capabilities_asym &= ~ICP_ACCEL_CAPABILITIES_ECEDMONT;
262a4b16dadSTom Zanussi 	}
263a4b16dadSTom Zanussi 
264a4b16dadSTom Zanussi 	capabilities_dc = ICP_ACCEL_CAPABILITIES_COMPRESSION |
265a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_LZ4_COMPRESSION |
266a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_LZ4S_COMPRESSION |
267a4b16dadSTom Zanussi 			  ICP_ACCEL_CAPABILITIES_CNV_INTEGRITY64;
268a4b16dadSTom Zanussi 
269a4b16dadSTom Zanussi 	if (fusectl1 & ICP_ACCEL_4XXX_MASK_COMPRESS_SLICE) {
270a4b16dadSTom Zanussi 		capabilities_dc &= ~ICP_ACCEL_CAPABILITIES_COMPRESSION;
271a4b16dadSTom Zanussi 		capabilities_dc &= ~ICP_ACCEL_CAPABILITIES_LZ4_COMPRESSION;
272a4b16dadSTom Zanussi 		capabilities_dc &= ~ICP_ACCEL_CAPABILITIES_LZ4S_COMPRESSION;
273a4b16dadSTom Zanussi 		capabilities_dc &= ~ICP_ACCEL_CAPABILITIES_CNV_INTEGRITY64;
274a4b16dadSTom Zanussi 	}
275a4b16dadSTom Zanussi 
276a4b16dadSTom Zanussi 	switch (get_service_enabled(accel_dev)) {
277a4b16dadSTom Zanussi 	case SVC_CY:
27850053275SAdam Guerin 	case SVC_CY2:
27950053275SAdam Guerin 		return capabilities_sym | capabilities_asym;
280a4b16dadSTom Zanussi 	case SVC_DC:
281a4b16dadSTom Zanussi 		return capabilities_dc;
2822e513f6bSAdam Guerin 	case SVC_DCC:
2832e513f6bSAdam Guerin 		/*
2842e513f6bSAdam Guerin 		 * Sym capabilities are available for chaining operations,
2852e513f6bSAdam Guerin 		 * but sym crypto instances cannot be supported
2862e513f6bSAdam Guerin 		 */
2872e513f6bSAdam Guerin 		capabilities_dcc = capabilities_dc | capabilities_sym;
2882e513f6bSAdam Guerin 		capabilities_dcc &= ~ICP_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC;
2892e513f6bSAdam Guerin 		return capabilities_dcc;
29050053275SAdam Guerin 	case SVC_SYM:
29150053275SAdam Guerin 		return capabilities_sym;
29250053275SAdam Guerin 	case SVC_ASYM:
29350053275SAdam Guerin 		return capabilities_asym;
29450053275SAdam Guerin 	case SVC_ASYM_DC:
29550053275SAdam Guerin 	case SVC_DC_ASYM:
29650053275SAdam Guerin 		return capabilities_asym | capabilities_dc;
29750053275SAdam Guerin 	case SVC_SYM_DC:
29850053275SAdam Guerin 	case SVC_DC_SYM:
29950053275SAdam Guerin 		return capabilities_sym | capabilities_dc;
300038ccc28SAdam Guerin 	default:
301a4b16dadSTom Zanussi 		return 0;
302a4b16dadSTom Zanussi 	}
303038ccc28SAdam Guerin }
304a4b16dadSTom Zanussi 
305a4b16dadSTom Zanussi static enum dev_sku_info get_sku(struct adf_hw_device_data *self)
306a4b16dadSTom Zanussi {
307a4b16dadSTom Zanussi 	return DEV_SKU_1;
308a4b16dadSTom Zanussi }
309a4b16dadSTom Zanussi 
310a4b16dadSTom Zanussi static const u32 *adf_get_arbiter_mapping(struct adf_accel_dev *accel_dev)
311a4b16dadSTom Zanussi {
312a4b16dadSTom Zanussi 	switch (get_service_enabled(accel_dev)) {
313a4b16dadSTom Zanussi 	case SVC_DC:
314a4b16dadSTom Zanussi 		return thrd_to_arb_map_dc;
3152e513f6bSAdam Guerin 	case SVC_DCC:
3162e513f6bSAdam Guerin 		return thrd_to_arb_map_dcc;
317038ccc28SAdam Guerin 	default:
31850053275SAdam Guerin 		return default_thrd_to_arb_map;
319a4b16dadSTom Zanussi 	}
320038ccc28SAdam Guerin }
321a4b16dadSTom Zanussi 
322a4b16dadSTom Zanussi static void get_arb_info(struct arb_info *arb_info)
323a4b16dadSTom Zanussi {
324a4b16dadSTom Zanussi 	arb_info->arb_cfg = ADF_4XXX_ARB_CONFIG;
325a4b16dadSTom Zanussi 	arb_info->arb_offset = ADF_4XXX_ARB_OFFSET;
326a4b16dadSTom Zanussi 	arb_info->wt2sam_offset = ADF_4XXX_ARB_WRK_2_SER_MAP_OFFSET;
327a4b16dadSTom Zanussi }
328a4b16dadSTom Zanussi 
329a4b16dadSTom Zanussi static void get_admin_info(struct admin_info *admin_csrs_info)
330a4b16dadSTom Zanussi {
331a4b16dadSTom Zanussi 	admin_csrs_info->mailbox_offset = ADF_4XXX_MAILBOX_BASE_OFFSET;
332a4b16dadSTom Zanussi 	admin_csrs_info->admin_msg_ur = ADF_4XXX_ADMINMSGUR_OFFSET;
333a4b16dadSTom Zanussi 	admin_csrs_info->admin_msg_lr = ADF_4XXX_ADMINMSGLR_OFFSET;
334a4b16dadSTom Zanussi }
335a4b16dadSTom Zanussi 
336e2980ba5SDamian Muszynski static u32 get_heartbeat_clock(struct adf_hw_device_data *self)
337e2980ba5SDamian Muszynski {
338e2980ba5SDamian Muszynski 	/*
339e2980ba5SDamian Muszynski 	 * 4XXX uses KPT counter for HB
340e2980ba5SDamian Muszynski 	 */
341e2980ba5SDamian Muszynski 	return ADF_4XXX_KPT_COUNTER_FREQ;
342e2980ba5SDamian Muszynski }
343e2980ba5SDamian Muszynski 
344a4b16dadSTom Zanussi static void adf_enable_error_correction(struct adf_accel_dev *accel_dev)
345a4b16dadSTom Zanussi {
346a4b16dadSTom Zanussi 	struct adf_bar *misc_bar = &GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR];
347a4b16dadSTom Zanussi 	void __iomem *csr = misc_bar->virt_addr;
348a4b16dadSTom Zanussi 
349a4b16dadSTom Zanussi 	/* Enable all in errsou3 except VFLR notification on host */
350a4b16dadSTom Zanussi 	ADF_CSR_WR(csr, ADF_GEN4_ERRMSK3, ADF_GEN4_VFLNOTIFY);
351a4b16dadSTom Zanussi }
352a4b16dadSTom Zanussi 
353a4b16dadSTom Zanussi static void adf_enable_ints(struct adf_accel_dev *accel_dev)
354a4b16dadSTom Zanussi {
355a4b16dadSTom Zanussi 	void __iomem *addr;
356a4b16dadSTom Zanussi 
357a4b16dadSTom Zanussi 	addr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;
358a4b16dadSTom Zanussi 
359a4b16dadSTom Zanussi 	/* Enable bundle interrupts */
360a4b16dadSTom Zanussi 	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_RP_X0_MASK_OFFSET, 0);
361a4b16dadSTom Zanussi 	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_RP_X1_MASK_OFFSET, 0);
362a4b16dadSTom Zanussi 
363a4b16dadSTom Zanussi 	/* Enable misc interrupts */
364a4b16dadSTom Zanussi 	ADF_CSR_WR(addr, ADF_4XXX_SMIAPF_MASK_OFFSET, 0);
365a4b16dadSTom Zanussi }
366a4b16dadSTom Zanussi 
367a4b16dadSTom Zanussi static int adf_init_device(struct adf_accel_dev *accel_dev)
368a4b16dadSTom Zanussi {
369a4b16dadSTom Zanussi 	void __iomem *addr;
370a4b16dadSTom Zanussi 	u32 status;
371a4b16dadSTom Zanussi 	u32 csr;
372a4b16dadSTom Zanussi 	int ret;
373a4b16dadSTom Zanussi 
374a4b16dadSTom Zanussi 	addr = (&GET_BARS(accel_dev)[ADF_4XXX_PMISC_BAR])->virt_addr;
375a4b16dadSTom Zanussi 
376a4b16dadSTom Zanussi 	/* Temporarily mask PM interrupt */
377a4b16dadSTom Zanussi 	csr = ADF_CSR_RD(addr, ADF_GEN4_ERRMSK2);
378a4b16dadSTom Zanussi 	csr |= ADF_GEN4_PM_SOU;
379a4b16dadSTom Zanussi 	ADF_CSR_WR(addr, ADF_GEN4_ERRMSK2, csr);
380a4b16dadSTom Zanussi 
381a4b16dadSTom Zanussi 	/* Set DRV_ACTIVE bit to power up the device */
382a4b16dadSTom Zanussi 	ADF_CSR_WR(addr, ADF_GEN4_PM_INTERRUPT, ADF_GEN4_PM_DRV_ACTIVE);
383a4b16dadSTom Zanussi 
384a4b16dadSTom Zanussi 	/* Poll status register to make sure the device is powered up */
385a4b16dadSTom Zanussi 	ret = read_poll_timeout(ADF_CSR_RD, status,
386a4b16dadSTom Zanussi 				status & ADF_GEN4_PM_INIT_STATE,
387a4b16dadSTom Zanussi 				ADF_GEN4_PM_POLL_DELAY_US,
388a4b16dadSTom Zanussi 				ADF_GEN4_PM_POLL_TIMEOUT_US, true, addr,
389a4b16dadSTom Zanussi 				ADF_GEN4_PM_STATUS);
390a4b16dadSTom Zanussi 	if (ret)
391a4b16dadSTom Zanussi 		dev_err(&GET_DEV(accel_dev), "Failed to power up the device\n");
392a4b16dadSTom Zanussi 
393a4b16dadSTom Zanussi 	return ret;
394a4b16dadSTom Zanussi }
395a4b16dadSTom Zanussi 
396a4b16dadSTom Zanussi static u32 uof_get_num_objs(void)
397a4b16dadSTom Zanussi {
39810484c64SGiovanni Cabiddu 	return ARRAY_SIZE(adf_fw_cy_config);
39910484c64SGiovanni Cabiddu }
400a4b16dadSTom Zanussi 
401a7be12fbSGiovanni Cabiddu static const struct adf_fw_config *get_fw_config(struct adf_accel_dev *accel_dev)
40210484c64SGiovanni Cabiddu {
40310484c64SGiovanni Cabiddu 	switch (get_service_enabled(accel_dev)) {
40410484c64SGiovanni Cabiddu 	case SVC_CY:
40550053275SAdam Guerin 	case SVC_CY2:
406a7be12fbSGiovanni Cabiddu 		return adf_fw_cy_config;
40710484c64SGiovanni Cabiddu 	case SVC_DC:
408a7be12fbSGiovanni Cabiddu 		return adf_fw_dc_config;
4092e513f6bSAdam Guerin 	case SVC_DCC:
410a7be12fbSGiovanni Cabiddu 		return adf_fw_dcc_config;
41150053275SAdam Guerin 	case SVC_SYM:
412a7be12fbSGiovanni Cabiddu 		return adf_fw_sym_config;
41350053275SAdam Guerin 	case SVC_ASYM:
414a7be12fbSGiovanni Cabiddu 		return adf_fw_asym_config;
41550053275SAdam Guerin 	case SVC_ASYM_DC:
41650053275SAdam Guerin 	case SVC_DC_ASYM:
417a7be12fbSGiovanni Cabiddu 		return adf_fw_asym_dc_config;
41850053275SAdam Guerin 	case SVC_SYM_DC:
41950053275SAdam Guerin 	case SVC_DC_SYM:
420a7be12fbSGiovanni Cabiddu 		return adf_fw_sym_dc_config;
42110484c64SGiovanni Cabiddu 	default:
422a7be12fbSGiovanni Cabiddu 		return NULL;
42310484c64SGiovanni Cabiddu 	}
424a7be12fbSGiovanni Cabiddu }
425a7be12fbSGiovanni Cabiddu 
42682e4aa18SGiovanni Cabiddu enum adf_rp_groups {
42782e4aa18SGiovanni Cabiddu 	RP_GROUP_0 = 0,
42882e4aa18SGiovanni Cabiddu 	RP_GROUP_1,
42982e4aa18SGiovanni Cabiddu 	RP_GROUP_COUNT
43082e4aa18SGiovanni Cabiddu };
43182e4aa18SGiovanni Cabiddu 
43282e4aa18SGiovanni Cabiddu static u16 get_ring_to_svc_map(struct adf_accel_dev *accel_dev)
43382e4aa18SGiovanni Cabiddu {
43482e4aa18SGiovanni Cabiddu 	enum adf_cfg_service_type rps[RP_GROUP_COUNT];
43582e4aa18SGiovanni Cabiddu 	const struct adf_fw_config *fw_config;
43682e4aa18SGiovanni Cabiddu 	u16 ring_to_svc_map;
43782e4aa18SGiovanni Cabiddu 	int i, j;
43882e4aa18SGiovanni Cabiddu 
43982e4aa18SGiovanni Cabiddu 	fw_config = get_fw_config(accel_dev);
44082e4aa18SGiovanni Cabiddu 	if (!fw_config)
44182e4aa18SGiovanni Cabiddu 		return 0;
44282e4aa18SGiovanni Cabiddu 
44382e4aa18SGiovanni Cabiddu 	for (i = 0; i < RP_GROUP_COUNT; i++) {
44482e4aa18SGiovanni Cabiddu 		switch (fw_config[i].ae_mask) {
44582e4aa18SGiovanni Cabiddu 		case ADF_AE_GROUP_0:
44682e4aa18SGiovanni Cabiddu 			j = RP_GROUP_0;
44782e4aa18SGiovanni Cabiddu 			break;
44882e4aa18SGiovanni Cabiddu 		case ADF_AE_GROUP_1:
44982e4aa18SGiovanni Cabiddu 			j = RP_GROUP_1;
45082e4aa18SGiovanni Cabiddu 			break;
45182e4aa18SGiovanni Cabiddu 		default:
45282e4aa18SGiovanni Cabiddu 			return 0;
45382e4aa18SGiovanni Cabiddu 		}
45482e4aa18SGiovanni Cabiddu 
45582e4aa18SGiovanni Cabiddu 		switch (fw_config[i].obj) {
45682e4aa18SGiovanni Cabiddu 		case ADF_FW_SYM_OBJ:
45782e4aa18SGiovanni Cabiddu 			rps[j] = SYM;
45882e4aa18SGiovanni Cabiddu 			break;
45982e4aa18SGiovanni Cabiddu 		case ADF_FW_ASYM_OBJ:
46082e4aa18SGiovanni Cabiddu 			rps[j] = ASYM;
46182e4aa18SGiovanni Cabiddu 			break;
46282e4aa18SGiovanni Cabiddu 		case ADF_FW_DC_OBJ:
46382e4aa18SGiovanni Cabiddu 			rps[j] = COMP;
46482e4aa18SGiovanni Cabiddu 			break;
46582e4aa18SGiovanni Cabiddu 		default:
46682e4aa18SGiovanni Cabiddu 			rps[j] = 0;
46782e4aa18SGiovanni Cabiddu 			break;
46882e4aa18SGiovanni Cabiddu 		}
46982e4aa18SGiovanni Cabiddu 	}
47082e4aa18SGiovanni Cabiddu 
47182e4aa18SGiovanni Cabiddu 	ring_to_svc_map = rps[RP_GROUP_0] << ADF_CFG_SERV_RING_PAIR_0_SHIFT |
47282e4aa18SGiovanni Cabiddu 			  rps[RP_GROUP_1] << ADF_CFG_SERV_RING_PAIR_1_SHIFT |
47382e4aa18SGiovanni Cabiddu 			  rps[RP_GROUP_0] << ADF_CFG_SERV_RING_PAIR_2_SHIFT |
47482e4aa18SGiovanni Cabiddu 			  rps[RP_GROUP_1] << ADF_CFG_SERV_RING_PAIR_3_SHIFT;
47582e4aa18SGiovanni Cabiddu 
47682e4aa18SGiovanni Cabiddu 	return ring_to_svc_map;
47782e4aa18SGiovanni Cabiddu }
47882e4aa18SGiovanni Cabiddu 
479a7be12fbSGiovanni Cabiddu static const char *uof_get_name(struct adf_accel_dev *accel_dev, u32 obj_num,
480a7be12fbSGiovanni Cabiddu 				const char * const fw_objs[], int num_objs)
481a7be12fbSGiovanni Cabiddu {
482a7be12fbSGiovanni Cabiddu 	const struct adf_fw_config *fw_config;
483a7be12fbSGiovanni Cabiddu 	int id;
484a7be12fbSGiovanni Cabiddu 
485a7be12fbSGiovanni Cabiddu 	fw_config = get_fw_config(accel_dev);
486a7be12fbSGiovanni Cabiddu 	if (fw_config)
487a7be12fbSGiovanni Cabiddu 		id = fw_config[obj_num].obj;
488a7be12fbSGiovanni Cabiddu 	else
489a7be12fbSGiovanni Cabiddu 		id = -EINVAL;
49010484c64SGiovanni Cabiddu 
49110484c64SGiovanni Cabiddu 	if (id < 0 || id > num_objs)
49210484c64SGiovanni Cabiddu 		return NULL;
49310484c64SGiovanni Cabiddu 
49410484c64SGiovanni Cabiddu 	return fw_objs[id];
495a4b16dadSTom Zanussi }
496a4b16dadSTom Zanussi 
49752f9a284SGiovanni Cabiddu static const char *uof_get_name_4xxx(struct adf_accel_dev *accel_dev, u32 obj_num)
498a4b16dadSTom Zanussi {
49910484c64SGiovanni Cabiddu 	int num_fw_objs = ARRAY_SIZE(adf_4xxx_fw_objs);
50010484c64SGiovanni Cabiddu 
50110484c64SGiovanni Cabiddu 	return uof_get_name(accel_dev, obj_num, adf_4xxx_fw_objs, num_fw_objs);
502038ccc28SAdam Guerin }
503a4b16dadSTom Zanussi 
50452f9a284SGiovanni Cabiddu static const char *uof_get_name_402xx(struct adf_accel_dev *accel_dev, u32 obj_num)
505a4b16dadSTom Zanussi {
50610484c64SGiovanni Cabiddu 	int num_fw_objs = ARRAY_SIZE(adf_402xx_fw_objs);
50710484c64SGiovanni Cabiddu 
50810484c64SGiovanni Cabiddu 	return uof_get_name(accel_dev, obj_num, adf_402xx_fw_objs, num_fw_objs);
509038ccc28SAdam Guerin }
510a4b16dadSTom Zanussi 
511a4b16dadSTom Zanussi static u32 uof_get_ae_mask(struct adf_accel_dev *accel_dev, u32 obj_num)
512a4b16dadSTom Zanussi {
513a7be12fbSGiovanni Cabiddu 	const struct adf_fw_config *fw_config;
514a7be12fbSGiovanni Cabiddu 
515a7be12fbSGiovanni Cabiddu 	fw_config = get_fw_config(accel_dev);
516a7be12fbSGiovanni Cabiddu 	if (!fw_config)
517a4b16dadSTom Zanussi 		return 0;
518a7be12fbSGiovanni Cabiddu 
519a7be12fbSGiovanni Cabiddu 	return fw_config[obj_num].ae_mask;
520038ccc28SAdam Guerin }
521a4b16dadSTom Zanussi 
522a4b16dadSTom Zanussi void adf_init_hw_data_4xxx(struct adf_hw_device_data *hw_data, u32 dev_id)
523a4b16dadSTom Zanussi {
524a4b16dadSTom Zanussi 	hw_data->dev_class = &adf_4xxx_class;
525a4b16dadSTom Zanussi 	hw_data->instance_id = adf_4xxx_class.instances++;
526a4b16dadSTom Zanussi 	hw_data->num_banks = ADF_4XXX_ETR_MAX_BANKS;
527a4b16dadSTom Zanussi 	hw_data->num_banks_per_vf = ADF_4XXX_NUM_BANKS_PER_VF;
528a4b16dadSTom Zanussi 	hw_data->num_rings_per_bank = ADF_4XXX_NUM_RINGS_PER_BANK;
529a4b16dadSTom Zanussi 	hw_data->num_accel = ADF_4XXX_MAX_ACCELERATORS;
530a4b16dadSTom Zanussi 	hw_data->num_engines = ADF_4XXX_MAX_ACCELENGINES;
531a4b16dadSTom Zanussi 	hw_data->num_logical_accel = 1;
532a4b16dadSTom Zanussi 	hw_data->tx_rx_gap = ADF_4XXX_RX_RINGS_OFFSET;
533a4b16dadSTom Zanussi 	hw_data->tx_rings_mask = ADF_4XXX_TX_RINGS_MASK;
534a4b16dadSTom Zanussi 	hw_data->ring_to_svc_map = ADF_GEN4_DEFAULT_RING_TO_SRV_MAP;
535a4b16dadSTom Zanussi 	hw_data->alloc_irq = adf_isr_resource_alloc;
536a4b16dadSTom Zanussi 	hw_data->free_irq = adf_isr_resource_free;
537a4b16dadSTom Zanussi 	hw_data->enable_error_correction = adf_enable_error_correction;
538a4b16dadSTom Zanussi 	hw_data->get_accel_mask = get_accel_mask;
539a4b16dadSTom Zanussi 	hw_data->get_ae_mask = get_ae_mask;
540a4b16dadSTom Zanussi 	hw_data->get_num_accels = get_num_accels;
541a4b16dadSTom Zanussi 	hw_data->get_num_aes = get_num_aes;
542a4b16dadSTom Zanussi 	hw_data->get_sram_bar_id = get_sram_bar_id;
543a4b16dadSTom Zanussi 	hw_data->get_etr_bar_id = get_etr_bar_id;
544a4b16dadSTom Zanussi 	hw_data->get_misc_bar_id = get_misc_bar_id;
545a4b16dadSTom Zanussi 	hw_data->get_arb_info = get_arb_info;
546a4b16dadSTom Zanussi 	hw_data->get_admin_info = get_admin_info;
547a4b16dadSTom Zanussi 	hw_data->get_accel_cap = get_accel_cap;
548a4b16dadSTom Zanussi 	hw_data->get_sku = get_sku;
549a4b16dadSTom Zanussi 	hw_data->init_admin_comms = adf_init_admin_comms;
550a4b16dadSTom Zanussi 	hw_data->exit_admin_comms = adf_exit_admin_comms;
551a4b16dadSTom Zanussi 	hw_data->send_admin_init = adf_send_admin_init;
552a4b16dadSTom Zanussi 	hw_data->init_arb = adf_init_arb;
553a4b16dadSTom Zanussi 	hw_data->exit_arb = adf_exit_arb;
554a4b16dadSTom Zanussi 	hw_data->get_arb_mapping = adf_get_arbiter_mapping;
555a4b16dadSTom Zanussi 	hw_data->enable_ints = adf_enable_ints;
556a4b16dadSTom Zanussi 	hw_data->init_device = adf_init_device;
557a4b16dadSTom Zanussi 	hw_data->reset_device = adf_reset_flr;
558a4b16dadSTom Zanussi 	hw_data->admin_ae_mask = ADF_4XXX_ADMIN_AE_MASK;
559a4b16dadSTom Zanussi 	switch (dev_id) {
560a4b16dadSTom Zanussi 	case ADF_402XX_PCI_DEVICE_ID:
561a4b16dadSTom Zanussi 		hw_data->fw_name = ADF_402XX_FW;
562a4b16dadSTom Zanussi 		hw_data->fw_mmp_name = ADF_402XX_MMP;
563a4b16dadSTom Zanussi 		hw_data->uof_get_name = uof_get_name_402xx;
564a4b16dadSTom Zanussi 		break;
565a4b16dadSTom Zanussi 
566a4b16dadSTom Zanussi 	default:
567a4b16dadSTom Zanussi 		hw_data->fw_name = ADF_4XXX_FW;
568a4b16dadSTom Zanussi 		hw_data->fw_mmp_name = ADF_4XXX_MMP;
569a4b16dadSTom Zanussi 		hw_data->uof_get_name = uof_get_name_4xxx;
570a4b16dadSTom Zanussi 	}
571a4b16dadSTom Zanussi 	hw_data->uof_get_num_objs = uof_get_num_objs;
572a4b16dadSTom Zanussi 	hw_data->uof_get_ae_mask = uof_get_ae_mask;
573a4b16dadSTom Zanussi 	hw_data->set_msix_rttable = set_msix_default_rttable;
574a4b16dadSTom Zanussi 	hw_data->set_ssm_wdtimer = adf_gen4_set_ssm_wdtimer;
57582e4aa18SGiovanni Cabiddu 	hw_data->get_ring_to_svc_map = get_ring_to_svc_map;
576a4b16dadSTom Zanussi 	hw_data->disable_iov = adf_disable_sriov;
577a4b16dadSTom Zanussi 	hw_data->ring_pair_reset = adf_gen4_ring_pair_reset;
578a4b16dadSTom Zanussi 	hw_data->enable_pm = adf_gen4_enable_pm;
579a4b16dadSTom Zanussi 	hw_data->handle_pm_interrupt = adf_gen4_handle_pm_interrupt;
580a4b16dadSTom Zanussi 	hw_data->dev_config = adf_gen4_dev_config;
581fd77d8daSDamian Muszynski 	hw_data->start_timer = adf_gen4_timer_start;
582fd77d8daSDamian Muszynski 	hw_data->stop_timer = adf_gen4_timer_stop;
583e2980ba5SDamian Muszynski 	hw_data->get_hb_clock = get_heartbeat_clock;
584359b84f8SDamian Muszynski 	hw_data->num_hb_ctrs = ADF_NUM_HB_CNT_PER_AE;
585a4b16dadSTom Zanussi 
586a4b16dadSTom Zanussi 	adf_gen4_init_hw_csr_ops(&hw_data->csr_ops);
587a4b16dadSTom Zanussi 	adf_gen4_init_pf_pfvf_ops(&hw_data->pfvf_ops);
588a4b16dadSTom Zanussi 	adf_gen4_init_dc_ops(&hw_data->dc_ops);
589a4b16dadSTom Zanussi }
590a4b16dadSTom Zanussi 
591a4b16dadSTom Zanussi void adf_clean_hw_data_4xxx(struct adf_hw_device_data *hw_data)
592a4b16dadSTom Zanussi {
593a4b16dadSTom Zanussi 	hw_data->dev_class->instances--;
594a4b16dadSTom Zanussi }
595