109c434b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 20a625fd2SDavid S. Miller /* n2_core.c: Niagara2 Stream Processing Unit (SPU) crypto support. 30a625fd2SDavid S. Miller * 4eb7caf35SDavid S. Miller * Copyright (C) 2010, 2011 David S. Miller <davem@davemloft.net> 50a625fd2SDavid S. Miller */ 60a625fd2SDavid S. Miller 70a625fd2SDavid S. Miller #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 80a625fd2SDavid S. Miller 90a625fd2SDavid S. Miller #include <linux/kernel.h> 100a625fd2SDavid S. Miller #include <linux/module.h> 110a625fd2SDavid S. Miller #include <linux/of.h> 120a625fd2SDavid S. Miller #include <linux/of_device.h> 130a625fd2SDavid S. Miller #include <linux/cpumask.h> 140a625fd2SDavid S. Miller #include <linux/slab.h> 150a625fd2SDavid S. Miller #include <linux/interrupt.h> 160a625fd2SDavid S. Miller #include <linux/crypto.h> 170a625fd2SDavid S. Miller #include <crypto/md5.h> 180a625fd2SDavid S. Miller #include <crypto/sha.h> 190a625fd2SDavid S. Miller #include <crypto/aes.h> 20d4b90dbcSArd Biesheuvel #include <crypto/internal/des.h> 210a625fd2SDavid S. Miller #include <linux/mutex.h> 220a625fd2SDavid S. Miller #include <linux/delay.h> 230a625fd2SDavid S. Miller #include <linux/sched.h> 240a625fd2SDavid S. Miller 250a625fd2SDavid S. Miller #include <crypto/internal/hash.h> 2623a6564aSArd Biesheuvel #include <crypto/internal/skcipher.h> 270a625fd2SDavid S. Miller #include <crypto/scatterwalk.h> 280a625fd2SDavid S. Miller #include <crypto/algapi.h> 290a625fd2SDavid S. Miller 300a625fd2SDavid S. Miller #include <asm/hypervisor.h> 310a625fd2SDavid S. Miller #include <asm/mdesc.h> 320a625fd2SDavid S. Miller 330a625fd2SDavid S. Miller #include "n2_core.h" 340a625fd2SDavid S. Miller 350a625fd2SDavid S. Miller #define DRV_MODULE_NAME "n2_crypto" 36eb7caf35SDavid S. Miller #define DRV_MODULE_VERSION "0.2" 37eb7caf35SDavid S. Miller #define DRV_MODULE_RELDATE "July 28, 2011" 380a625fd2SDavid S. Miller 3950826874SLABBE Corentin static const char version[] = 400a625fd2SDavid S. Miller DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; 410a625fd2SDavid S. Miller 420a625fd2SDavid S. Miller MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); 430a625fd2SDavid S. Miller MODULE_DESCRIPTION("Niagara2 Crypto driver"); 440a625fd2SDavid S. Miller MODULE_LICENSE("GPL"); 450a625fd2SDavid S. Miller MODULE_VERSION(DRV_MODULE_VERSION); 460a625fd2SDavid S. Miller 4710803624SDavid S. Miller #define N2_CRA_PRIORITY 200 480a625fd2SDavid S. Miller 490a625fd2SDavid S. Miller static DEFINE_MUTEX(spu_lock); 500a625fd2SDavid S. Miller 510a625fd2SDavid S. Miller struct spu_queue { 520a625fd2SDavid S. Miller cpumask_t sharing; 530a625fd2SDavid S. Miller unsigned long qhandle; 540a625fd2SDavid S. Miller 550a625fd2SDavid S. Miller spinlock_t lock; 560a625fd2SDavid S. Miller u8 q_type; 570a625fd2SDavid S. Miller void *q; 580a625fd2SDavid S. Miller unsigned long head; 590a625fd2SDavid S. Miller unsigned long tail; 600a625fd2SDavid S. Miller struct list_head jobs; 610a625fd2SDavid S. Miller 620a625fd2SDavid S. Miller unsigned long devino; 630a625fd2SDavid S. Miller 640a625fd2SDavid S. Miller char irq_name[32]; 650a625fd2SDavid S. Miller unsigned int irq; 660a625fd2SDavid S. Miller 670a625fd2SDavid S. Miller struct list_head list; 680a625fd2SDavid S. Miller }; 690a625fd2SDavid S. Miller 7073810a06SThomas Gleixner struct spu_qreg { 7173810a06SThomas Gleixner struct spu_queue *queue; 7273810a06SThomas Gleixner unsigned long type; 7373810a06SThomas Gleixner }; 7473810a06SThomas Gleixner 750a625fd2SDavid S. Miller static struct spu_queue **cpu_to_cwq; 760a625fd2SDavid S. Miller static struct spu_queue **cpu_to_mau; 770a625fd2SDavid S. Miller 780a625fd2SDavid S. Miller static unsigned long spu_next_offset(struct spu_queue *q, unsigned long off) 790a625fd2SDavid S. Miller { 800a625fd2SDavid S. Miller if (q->q_type == HV_NCS_QTYPE_MAU) { 810a625fd2SDavid S. Miller off += MAU_ENTRY_SIZE; 820a625fd2SDavid S. Miller if (off == (MAU_ENTRY_SIZE * MAU_NUM_ENTRIES)) 830a625fd2SDavid S. Miller off = 0; 840a625fd2SDavid S. Miller } else { 850a625fd2SDavid S. Miller off += CWQ_ENTRY_SIZE; 860a625fd2SDavid S. Miller if (off == (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES)) 870a625fd2SDavid S. Miller off = 0; 880a625fd2SDavid S. Miller } 890a625fd2SDavid S. Miller return off; 900a625fd2SDavid S. Miller } 910a625fd2SDavid S. Miller 920a625fd2SDavid S. Miller struct n2_request_common { 930a625fd2SDavid S. Miller struct list_head entry; 940a625fd2SDavid S. Miller unsigned int offset; 950a625fd2SDavid S. Miller }; 960a625fd2SDavid S. Miller #define OFFSET_NOT_RUNNING (~(unsigned int)0) 970a625fd2SDavid S. Miller 980a625fd2SDavid S. Miller /* An async job request records the final tail value it used in 990a625fd2SDavid S. Miller * n2_request_common->offset, test to see if that offset is in 1000a625fd2SDavid S. Miller * the range old_head, new_head, inclusive. 1010a625fd2SDavid S. Miller */ 1020a625fd2SDavid S. Miller static inline bool job_finished(struct spu_queue *q, unsigned int offset, 1030a625fd2SDavid S. Miller unsigned long old_head, unsigned long new_head) 1040a625fd2SDavid S. Miller { 1050a625fd2SDavid S. Miller if (old_head <= new_head) { 1060a625fd2SDavid S. Miller if (offset > old_head && offset <= new_head) 1070a625fd2SDavid S. Miller return true; 1080a625fd2SDavid S. Miller } else { 1090a625fd2SDavid S. Miller if (offset > old_head || offset <= new_head) 1100a625fd2SDavid S. Miller return true; 1110a625fd2SDavid S. Miller } 1120a625fd2SDavid S. Miller return false; 1130a625fd2SDavid S. Miller } 1140a625fd2SDavid S. Miller 1150a625fd2SDavid S. Miller /* When the HEAD marker is unequal to the actual HEAD, we get 1160a625fd2SDavid S. Miller * a virtual device INO interrupt. We should process the 1170a625fd2SDavid S. Miller * completed CWQ entries and adjust the HEAD marker to clear 1180a625fd2SDavid S. Miller * the IRQ. 1190a625fd2SDavid S. Miller */ 1200a625fd2SDavid S. Miller static irqreturn_t cwq_intr(int irq, void *dev_id) 1210a625fd2SDavid S. Miller { 1220a625fd2SDavid S. Miller unsigned long off, new_head, hv_ret; 1230a625fd2SDavid S. Miller struct spu_queue *q = dev_id; 1240a625fd2SDavid S. Miller 1250a625fd2SDavid S. Miller pr_err("CPU[%d]: Got CWQ interrupt for qhdl[%lx]\n", 1260a625fd2SDavid S. Miller smp_processor_id(), q->qhandle); 1270a625fd2SDavid S. Miller 1280a625fd2SDavid S. Miller spin_lock(&q->lock); 1290a625fd2SDavid S. Miller 1300a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(q->qhandle, &new_head); 1310a625fd2SDavid S. Miller 1320a625fd2SDavid S. Miller pr_err("CPU[%d]: CWQ gethead[%lx] hv_ret[%lu]\n", 1330a625fd2SDavid S. Miller smp_processor_id(), new_head, hv_ret); 1340a625fd2SDavid S. Miller 1350a625fd2SDavid S. Miller for (off = q->head; off != new_head; off = spu_next_offset(q, off)) { 1360a625fd2SDavid S. Miller /* XXX ... XXX */ 1370a625fd2SDavid S. Miller } 1380a625fd2SDavid S. Miller 1390a625fd2SDavid S. Miller hv_ret = sun4v_ncs_sethead_marker(q->qhandle, new_head); 1400a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 1410a625fd2SDavid S. Miller q->head = new_head; 1420a625fd2SDavid S. Miller 1430a625fd2SDavid S. Miller spin_unlock(&q->lock); 1440a625fd2SDavid S. Miller 1450a625fd2SDavid S. Miller return IRQ_HANDLED; 1460a625fd2SDavid S. Miller } 1470a625fd2SDavid S. Miller 1480a625fd2SDavid S. Miller static irqreturn_t mau_intr(int irq, void *dev_id) 1490a625fd2SDavid S. Miller { 1500a625fd2SDavid S. Miller struct spu_queue *q = dev_id; 1510a625fd2SDavid S. Miller unsigned long head, hv_ret; 1520a625fd2SDavid S. Miller 1530a625fd2SDavid S. Miller spin_lock(&q->lock); 1540a625fd2SDavid S. Miller 1550a625fd2SDavid S. Miller pr_err("CPU[%d]: Got MAU interrupt for qhdl[%lx]\n", 1560a625fd2SDavid S. Miller smp_processor_id(), q->qhandle); 1570a625fd2SDavid S. Miller 1580a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(q->qhandle, &head); 1590a625fd2SDavid S. Miller 1600a625fd2SDavid S. Miller pr_err("CPU[%d]: MAU gethead[%lx] hv_ret[%lu]\n", 1610a625fd2SDavid S. Miller smp_processor_id(), head, hv_ret); 1620a625fd2SDavid S. Miller 1630a625fd2SDavid S. Miller sun4v_ncs_sethead_marker(q->qhandle, head); 1640a625fd2SDavid S. Miller 1650a625fd2SDavid S. Miller spin_unlock(&q->lock); 1660a625fd2SDavid S. Miller 1670a625fd2SDavid S. Miller return IRQ_HANDLED; 1680a625fd2SDavid S. Miller } 1690a625fd2SDavid S. Miller 1700a625fd2SDavid S. Miller static void *spu_queue_next(struct spu_queue *q, void *cur) 1710a625fd2SDavid S. Miller { 1720a625fd2SDavid S. Miller return q->q + spu_next_offset(q, cur - q->q); 1730a625fd2SDavid S. Miller } 1740a625fd2SDavid S. Miller 1750a625fd2SDavid S. Miller static int spu_queue_num_free(struct spu_queue *q) 1760a625fd2SDavid S. Miller { 1770a625fd2SDavid S. Miller unsigned long head = q->head; 1780a625fd2SDavid S. Miller unsigned long tail = q->tail; 1790a625fd2SDavid S. Miller unsigned long end = (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES); 1800a625fd2SDavid S. Miller unsigned long diff; 1810a625fd2SDavid S. Miller 1820a625fd2SDavid S. Miller if (head > tail) 1830a625fd2SDavid S. Miller diff = head - tail; 1840a625fd2SDavid S. Miller else 1850a625fd2SDavid S. Miller diff = (end - tail) + head; 1860a625fd2SDavid S. Miller 1870a625fd2SDavid S. Miller return (diff / CWQ_ENTRY_SIZE) - 1; 1880a625fd2SDavid S. Miller } 1890a625fd2SDavid S. Miller 1900a625fd2SDavid S. Miller static void *spu_queue_alloc(struct spu_queue *q, int num_entries) 1910a625fd2SDavid S. Miller { 1920a625fd2SDavid S. Miller int avail = spu_queue_num_free(q); 1930a625fd2SDavid S. Miller 1940a625fd2SDavid S. Miller if (avail >= num_entries) 1950a625fd2SDavid S. Miller return q->q + q->tail; 1960a625fd2SDavid S. Miller 1970a625fd2SDavid S. Miller return NULL; 1980a625fd2SDavid S. Miller } 1990a625fd2SDavid S. Miller 2000a625fd2SDavid S. Miller static unsigned long spu_queue_submit(struct spu_queue *q, void *last) 2010a625fd2SDavid S. Miller { 2020a625fd2SDavid S. Miller unsigned long hv_ret, new_tail; 2030a625fd2SDavid S. Miller 2040a625fd2SDavid S. Miller new_tail = spu_next_offset(q, last - q->q); 2050a625fd2SDavid S. Miller 2060a625fd2SDavid S. Miller hv_ret = sun4v_ncs_settail(q->qhandle, new_tail); 2070a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 2080a625fd2SDavid S. Miller q->tail = new_tail; 2090a625fd2SDavid S. Miller return hv_ret; 2100a625fd2SDavid S. Miller } 2110a625fd2SDavid S. Miller 2120a625fd2SDavid S. Miller static u64 control_word_base(unsigned int len, unsigned int hmac_key_len, 2130a625fd2SDavid S. Miller int enc_type, int auth_type, 2140a625fd2SDavid S. Miller unsigned int hash_len, 2150a625fd2SDavid S. Miller bool sfas, bool sob, bool eob, bool encrypt, 2160a625fd2SDavid S. Miller int opcode) 2170a625fd2SDavid S. Miller { 2180a625fd2SDavid S. Miller u64 word = (len - 1) & CONTROL_LEN; 2190a625fd2SDavid S. Miller 2200a625fd2SDavid S. Miller word |= ((u64) opcode << CONTROL_OPCODE_SHIFT); 2210a625fd2SDavid S. Miller word |= ((u64) enc_type << CONTROL_ENC_TYPE_SHIFT); 2220a625fd2SDavid S. Miller word |= ((u64) auth_type << CONTROL_AUTH_TYPE_SHIFT); 2230a625fd2SDavid S. Miller if (sfas) 2240a625fd2SDavid S. Miller word |= CONTROL_STORE_FINAL_AUTH_STATE; 2250a625fd2SDavid S. Miller if (sob) 2260a625fd2SDavid S. Miller word |= CONTROL_START_OF_BLOCK; 2270a625fd2SDavid S. Miller if (eob) 2280a625fd2SDavid S. Miller word |= CONTROL_END_OF_BLOCK; 2290a625fd2SDavid S. Miller if (encrypt) 2300a625fd2SDavid S. Miller word |= CONTROL_ENCRYPT; 2310a625fd2SDavid S. Miller if (hmac_key_len) 2320a625fd2SDavid S. Miller word |= ((u64) (hmac_key_len - 1)) << CONTROL_HMAC_KEY_LEN_SHIFT; 2330a625fd2SDavid S. Miller if (hash_len) 2340a625fd2SDavid S. Miller word |= ((u64) (hash_len - 1)) << CONTROL_HASH_LEN_SHIFT; 2350a625fd2SDavid S. Miller 2360a625fd2SDavid S. Miller return word; 2370a625fd2SDavid S. Miller } 2380a625fd2SDavid S. Miller 2390a625fd2SDavid S. Miller #if 0 2400a625fd2SDavid S. Miller static inline bool n2_should_run_async(struct spu_queue *qp, int this_len) 2410a625fd2SDavid S. Miller { 2420a625fd2SDavid S. Miller if (this_len >= 64 || 2430a625fd2SDavid S. Miller qp->head != qp->tail) 2440a625fd2SDavid S. Miller return true; 2450a625fd2SDavid S. Miller return false; 2460a625fd2SDavid S. Miller } 2470a625fd2SDavid S. Miller #endif 2480a625fd2SDavid S. Miller 2493a2c0346SDavid S. Miller struct n2_ahash_alg { 2503a2c0346SDavid S. Miller struct list_head entry; 2518054b800SLABBE Corentin const u8 *hash_zero; 2526d77282fSHerbert Xu const u8 *hash_init; 2533a2c0346SDavid S. Miller u8 hw_op_hashsz; 2543a2c0346SDavid S. Miller u8 digest_size; 2553a2c0346SDavid S. Miller u8 auth_type; 256dc4ccfd1SDavid S. Miller u8 hmac_type; 2573a2c0346SDavid S. Miller struct ahash_alg alg; 2583a2c0346SDavid S. Miller }; 2593a2c0346SDavid S. Miller 2603a2c0346SDavid S. Miller static inline struct n2_ahash_alg *n2_ahash_alg(struct crypto_tfm *tfm) 2613a2c0346SDavid S. Miller { 2623a2c0346SDavid S. Miller struct crypto_alg *alg = tfm->__crt_alg; 2633a2c0346SDavid S. Miller struct ahash_alg *ahash_alg; 2643a2c0346SDavid S. Miller 2653a2c0346SDavid S. Miller ahash_alg = container_of(alg, struct ahash_alg, halg.base); 2663a2c0346SDavid S. Miller 2673a2c0346SDavid S. Miller return container_of(ahash_alg, struct n2_ahash_alg, alg); 2683a2c0346SDavid S. Miller } 2693a2c0346SDavid S. Miller 270dc4ccfd1SDavid S. Miller struct n2_hmac_alg { 271dc4ccfd1SDavid S. Miller const char *child_alg; 272dc4ccfd1SDavid S. Miller struct n2_ahash_alg derived; 273dc4ccfd1SDavid S. Miller }; 274dc4ccfd1SDavid S. Miller 275dc4ccfd1SDavid S. Miller static inline struct n2_hmac_alg *n2_hmac_alg(struct crypto_tfm *tfm) 276dc4ccfd1SDavid S. Miller { 277dc4ccfd1SDavid S. Miller struct crypto_alg *alg = tfm->__crt_alg; 278dc4ccfd1SDavid S. Miller struct ahash_alg *ahash_alg; 279dc4ccfd1SDavid S. Miller 280dc4ccfd1SDavid S. Miller ahash_alg = container_of(alg, struct ahash_alg, halg.base); 281dc4ccfd1SDavid S. Miller 282dc4ccfd1SDavid S. Miller return container_of(ahash_alg, struct n2_hmac_alg, derived.alg); 283dc4ccfd1SDavid S. Miller } 284dc4ccfd1SDavid S. Miller 2850a625fd2SDavid S. Miller struct n2_hash_ctx { 286c9aa55e5SDavid S. Miller struct crypto_ahash *fallback_tfm; 287c9aa55e5SDavid S. Miller }; 2880a625fd2SDavid S. Miller 289dc4ccfd1SDavid S. Miller #define N2_HASH_KEY_MAX 32 /* HW limit for all HMAC requests */ 290dc4ccfd1SDavid S. Miller 291dc4ccfd1SDavid S. Miller struct n2_hmac_ctx { 292dc4ccfd1SDavid S. Miller struct n2_hash_ctx base; 293dc4ccfd1SDavid S. Miller 294dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash; 295dc4ccfd1SDavid S. Miller 296dc4ccfd1SDavid S. Miller int hash_key_len; 297dc4ccfd1SDavid S. Miller unsigned char hash_key[N2_HASH_KEY_MAX]; 298dc4ccfd1SDavid S. Miller }; 299dc4ccfd1SDavid S. Miller 300c9aa55e5SDavid S. Miller struct n2_hash_req_ctx { 3010a625fd2SDavid S. Miller union { 3020a625fd2SDavid S. Miller struct md5_state md5; 3030a625fd2SDavid S. Miller struct sha1_state sha1; 3040a625fd2SDavid S. Miller struct sha256_state sha256; 3050a625fd2SDavid S. Miller } u; 3060a625fd2SDavid S. Miller 307c9aa55e5SDavid S. Miller struct ahash_request fallback_req; 3080a625fd2SDavid S. Miller }; 3090a625fd2SDavid S. Miller 3100a625fd2SDavid S. Miller static int n2_hash_async_init(struct ahash_request *req) 3110a625fd2SDavid S. Miller { 312c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3130a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3140a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3150a625fd2SDavid S. Miller 316c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 317c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 3180a625fd2SDavid S. Miller 319c9aa55e5SDavid S. Miller return crypto_ahash_init(&rctx->fallback_req); 3200a625fd2SDavid S. Miller } 3210a625fd2SDavid S. Miller 3220a625fd2SDavid S. Miller static int n2_hash_async_update(struct ahash_request *req) 3230a625fd2SDavid S. Miller { 324c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3250a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3260a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3270a625fd2SDavid S. Miller 328c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 329c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 330c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 331c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 3320a625fd2SDavid S. Miller 333c9aa55e5SDavid S. Miller return crypto_ahash_update(&rctx->fallback_req); 3340a625fd2SDavid S. Miller } 3350a625fd2SDavid S. Miller 3360a625fd2SDavid S. Miller static int n2_hash_async_final(struct ahash_request *req) 3370a625fd2SDavid S. Miller { 338c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3390a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3400a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3410a625fd2SDavid S. Miller 342c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 343c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 344c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 3450a625fd2SDavid S. Miller 346c9aa55e5SDavid S. Miller return crypto_ahash_final(&rctx->fallback_req); 3470a625fd2SDavid S. Miller } 3480a625fd2SDavid S. Miller 3490a625fd2SDavid S. Miller static int n2_hash_async_finup(struct ahash_request *req) 3500a625fd2SDavid S. Miller { 351c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3520a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3530a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3540a625fd2SDavid S. Miller 355c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 356c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 357c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 358c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 359c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 3600a625fd2SDavid S. Miller 361c9aa55e5SDavid S. Miller return crypto_ahash_finup(&rctx->fallback_req); 3620a625fd2SDavid S. Miller } 3630a625fd2SDavid S. Miller 364378fe6fbSKamil Konieczny static int n2_hash_async_noimport(struct ahash_request *req, const void *in) 365378fe6fbSKamil Konieczny { 366378fe6fbSKamil Konieczny return -ENOSYS; 367378fe6fbSKamil Konieczny } 368378fe6fbSKamil Konieczny 369378fe6fbSKamil Konieczny static int n2_hash_async_noexport(struct ahash_request *req, void *out) 370378fe6fbSKamil Konieczny { 371378fe6fbSKamil Konieczny return -ENOSYS; 372378fe6fbSKamil Konieczny } 373378fe6fbSKamil Konieczny 3740a625fd2SDavid S. Miller static int n2_hash_cra_init(struct crypto_tfm *tfm) 3750a625fd2SDavid S. Miller { 3765837af01SMarek Vasut const char *fallback_driver_name = crypto_tfm_alg_name(tfm); 3770a625fd2SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 3780a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); 3790a625fd2SDavid S. Miller struct crypto_ahash *fallback_tfm; 3800a625fd2SDavid S. Miller int err; 3810a625fd2SDavid S. Miller 3820a625fd2SDavid S. Miller fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, 3830a625fd2SDavid S. Miller CRYPTO_ALG_NEED_FALLBACK); 3840a625fd2SDavid S. Miller if (IS_ERR(fallback_tfm)) { 385cacc594bSKefeng Wang pr_warn("Fallback driver '%s' could not be loaded!\n", 3860a625fd2SDavid S. Miller fallback_driver_name); 3870a625fd2SDavid S. Miller err = PTR_ERR(fallback_tfm); 3880a625fd2SDavid S. Miller goto out; 3890a625fd2SDavid S. Miller } 3900a625fd2SDavid S. Miller 391c9aa55e5SDavid S. Miller crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + 392c9aa55e5SDavid S. Miller crypto_ahash_reqsize(fallback_tfm))); 393c9aa55e5SDavid S. Miller 394c9aa55e5SDavid S. Miller ctx->fallback_tfm = fallback_tfm; 3950a625fd2SDavid S. Miller return 0; 3960a625fd2SDavid S. Miller 3970a625fd2SDavid S. Miller out: 3980a625fd2SDavid S. Miller return err; 3990a625fd2SDavid S. Miller } 4000a625fd2SDavid S. Miller 4010a625fd2SDavid S. Miller static void n2_hash_cra_exit(struct crypto_tfm *tfm) 4020a625fd2SDavid S. Miller { 4030a625fd2SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 4040a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); 4050a625fd2SDavid S. Miller 406c9aa55e5SDavid S. Miller crypto_free_ahash(ctx->fallback_tfm); 4070a625fd2SDavid S. Miller } 4080a625fd2SDavid S. Miller 409dc4ccfd1SDavid S. Miller static int n2_hmac_cra_init(struct crypto_tfm *tfm) 410dc4ccfd1SDavid S. Miller { 4115837af01SMarek Vasut const char *fallback_driver_name = crypto_tfm_alg_name(tfm); 412dc4ccfd1SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 413dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); 414dc4ccfd1SDavid S. Miller struct n2_hmac_alg *n2alg = n2_hmac_alg(tfm); 415dc4ccfd1SDavid S. Miller struct crypto_ahash *fallback_tfm; 416dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash; 417dc4ccfd1SDavid S. Miller int err; 418dc4ccfd1SDavid S. Miller 419dc4ccfd1SDavid S. Miller fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, 420dc4ccfd1SDavid S. Miller CRYPTO_ALG_NEED_FALLBACK); 421dc4ccfd1SDavid S. Miller if (IS_ERR(fallback_tfm)) { 422cacc594bSKefeng Wang pr_warn("Fallback driver '%s' could not be loaded!\n", 423dc4ccfd1SDavid S. Miller fallback_driver_name); 424dc4ccfd1SDavid S. Miller err = PTR_ERR(fallback_tfm); 425dc4ccfd1SDavid S. Miller goto out; 426dc4ccfd1SDavid S. Miller } 427dc4ccfd1SDavid S. Miller 428dc4ccfd1SDavid S. Miller child_shash = crypto_alloc_shash(n2alg->child_alg, 0, 0); 429dc4ccfd1SDavid S. Miller if (IS_ERR(child_shash)) { 430cacc594bSKefeng Wang pr_warn("Child shash '%s' could not be loaded!\n", 431dc4ccfd1SDavid S. Miller n2alg->child_alg); 432dc4ccfd1SDavid S. Miller err = PTR_ERR(child_shash); 433dc4ccfd1SDavid S. Miller goto out_free_fallback; 434dc4ccfd1SDavid S. Miller } 435dc4ccfd1SDavid S. Miller 436dc4ccfd1SDavid S. Miller crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + 437dc4ccfd1SDavid S. Miller crypto_ahash_reqsize(fallback_tfm))); 438dc4ccfd1SDavid S. Miller 439dc4ccfd1SDavid S. Miller ctx->child_shash = child_shash; 440dc4ccfd1SDavid S. Miller ctx->base.fallback_tfm = fallback_tfm; 441dc4ccfd1SDavid S. Miller return 0; 442dc4ccfd1SDavid S. Miller 443dc4ccfd1SDavid S. Miller out_free_fallback: 444dc4ccfd1SDavid S. Miller crypto_free_ahash(fallback_tfm); 445dc4ccfd1SDavid S. Miller 446dc4ccfd1SDavid S. Miller out: 447dc4ccfd1SDavid S. Miller return err; 448dc4ccfd1SDavid S. Miller } 449dc4ccfd1SDavid S. Miller 450dc4ccfd1SDavid S. Miller static void n2_hmac_cra_exit(struct crypto_tfm *tfm) 451dc4ccfd1SDavid S. Miller { 452dc4ccfd1SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 453dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); 454dc4ccfd1SDavid S. Miller 455dc4ccfd1SDavid S. Miller crypto_free_ahash(ctx->base.fallback_tfm); 456dc4ccfd1SDavid S. Miller crypto_free_shash(ctx->child_shash); 457dc4ccfd1SDavid S. Miller } 458dc4ccfd1SDavid S. Miller 459dc4ccfd1SDavid S. Miller static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key, 460dc4ccfd1SDavid S. Miller unsigned int keylen) 461dc4ccfd1SDavid S. Miller { 462dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); 463dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash = ctx->child_shash; 464dc4ccfd1SDavid S. Miller struct crypto_ahash *fallback_tfm; 465dc4ccfd1SDavid S. Miller int err, bs, ds; 466dc4ccfd1SDavid S. Miller 467dc4ccfd1SDavid S. Miller fallback_tfm = ctx->base.fallback_tfm; 468dc4ccfd1SDavid S. Miller err = crypto_ahash_setkey(fallback_tfm, key, keylen); 469dc4ccfd1SDavid S. Miller if (err) 470dc4ccfd1SDavid S. Miller return err; 471dc4ccfd1SDavid S. Miller 472dc4ccfd1SDavid S. Miller bs = crypto_shash_blocksize(child_shash); 473dc4ccfd1SDavid S. Miller ds = crypto_shash_digestsize(child_shash); 474dc4ccfd1SDavid S. Miller BUG_ON(ds > N2_HASH_KEY_MAX); 475dc4ccfd1SDavid S. Miller if (keylen > bs) { 476ce8e0488SEric Biggers err = crypto_shash_tfm_digest(child_shash, key, keylen, 477dc4ccfd1SDavid S. Miller ctx->hash_key); 478dc4ccfd1SDavid S. Miller if (err) 479dc4ccfd1SDavid S. Miller return err; 480dc4ccfd1SDavid S. Miller keylen = ds; 481dc4ccfd1SDavid S. Miller } else if (keylen <= N2_HASH_KEY_MAX) 482dc4ccfd1SDavid S. Miller memcpy(ctx->hash_key, key, keylen); 483dc4ccfd1SDavid S. Miller 484dc4ccfd1SDavid S. Miller ctx->hash_key_len = keylen; 485dc4ccfd1SDavid S. Miller 486dc4ccfd1SDavid S. Miller return err; 487dc4ccfd1SDavid S. Miller } 488dc4ccfd1SDavid S. Miller 4890a625fd2SDavid S. Miller static unsigned long wait_for_tail(struct spu_queue *qp) 4900a625fd2SDavid S. Miller { 4910a625fd2SDavid S. Miller unsigned long head, hv_ret; 4920a625fd2SDavid S. Miller 4930a625fd2SDavid S. Miller do { 4940a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(qp->qhandle, &head); 4950a625fd2SDavid S. Miller if (hv_ret != HV_EOK) { 4960a625fd2SDavid S. Miller pr_err("Hypervisor error on gethead\n"); 4970a625fd2SDavid S. Miller break; 4980a625fd2SDavid S. Miller } 4990a625fd2SDavid S. Miller if (head == qp->tail) { 5000a625fd2SDavid S. Miller qp->head = head; 5010a625fd2SDavid S. Miller break; 5020a625fd2SDavid S. Miller } 5030a625fd2SDavid S. Miller } while (1); 5040a625fd2SDavid S. Miller return hv_ret; 5050a625fd2SDavid S. Miller } 5060a625fd2SDavid S. Miller 5070a625fd2SDavid S. Miller static unsigned long submit_and_wait_for_tail(struct spu_queue *qp, 5080a625fd2SDavid S. Miller struct cwq_initial_entry *ent) 5090a625fd2SDavid S. Miller { 5100a625fd2SDavid S. Miller unsigned long hv_ret = spu_queue_submit(qp, ent); 5110a625fd2SDavid S. Miller 5120a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 5130a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 5140a625fd2SDavid S. Miller 5150a625fd2SDavid S. Miller return hv_ret; 5160a625fd2SDavid S. Miller } 5170a625fd2SDavid S. Miller 5183a2c0346SDavid S. Miller static int n2_do_async_digest(struct ahash_request *req, 5190a625fd2SDavid S. Miller unsigned int auth_type, unsigned int digest_size, 520dc4ccfd1SDavid S. Miller unsigned int result_size, void *hash_loc, 521dc4ccfd1SDavid S. Miller unsigned long auth_key, unsigned int auth_key_len) 5220a625fd2SDavid S. Miller { 5230a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 5240a625fd2SDavid S. Miller struct cwq_initial_entry *ent; 5250a625fd2SDavid S. Miller struct crypto_hash_walk walk; 5260a625fd2SDavid S. Miller struct spu_queue *qp; 5270a625fd2SDavid S. Miller unsigned long flags; 5280a625fd2SDavid S. Miller int err = -ENODEV; 5290a625fd2SDavid S. Miller int nbytes, cpu; 5300a625fd2SDavid S. Miller 5310a625fd2SDavid S. Miller /* The total effective length of the operation may not 5320a625fd2SDavid S. Miller * exceed 2^16. 5330a625fd2SDavid S. Miller */ 5340a625fd2SDavid S. Miller if (unlikely(req->nbytes > (1 << 16))) { 535c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 53665a23d67SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 5370a625fd2SDavid S. Miller 538c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 539c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = 540c9aa55e5SDavid S. Miller req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 541c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 542c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 543c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 544c9aa55e5SDavid S. Miller 545c9aa55e5SDavid S. Miller return crypto_ahash_digest(&rctx->fallback_req); 5460a625fd2SDavid S. Miller } 5470a625fd2SDavid S. Miller 5480a625fd2SDavid S. Miller nbytes = crypto_hash_walk_first(req, &walk); 5490a625fd2SDavid S. Miller 5500a625fd2SDavid S. Miller cpu = get_cpu(); 5510a625fd2SDavid S. Miller qp = cpu_to_cwq[cpu]; 5520a625fd2SDavid S. Miller if (!qp) 5530a625fd2SDavid S. Miller goto out; 5540a625fd2SDavid S. Miller 5550a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 5560a625fd2SDavid S. Miller 5570a625fd2SDavid S. Miller /* XXX can do better, improve this later by doing a by-hand scatterlist 5580a625fd2SDavid S. Miller * XXX walk, etc. 5590a625fd2SDavid S. Miller */ 5600a625fd2SDavid S. Miller ent = qp->q + qp->tail; 5610a625fd2SDavid S. Miller 562dc4ccfd1SDavid S. Miller ent->control = control_word_base(nbytes, auth_key_len, 0, 5630a625fd2SDavid S. Miller auth_type, digest_size, 5640a625fd2SDavid S. Miller false, true, false, false, 5650a625fd2SDavid S. Miller OPCODE_INPLACE_BIT | 5660a625fd2SDavid S. Miller OPCODE_AUTH_MAC); 5670a625fd2SDavid S. Miller ent->src_addr = __pa(walk.data); 568dc4ccfd1SDavid S. Miller ent->auth_key_addr = auth_key; 5690a625fd2SDavid S. Miller ent->auth_iv_addr = __pa(hash_loc); 5700a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 5710a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 5720a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 5730a625fd2SDavid S. Miller ent->dest_addr = __pa(hash_loc); 5740a625fd2SDavid S. Miller 5750a625fd2SDavid S. Miller nbytes = crypto_hash_walk_done(&walk, 0); 5760a625fd2SDavid S. Miller while (nbytes > 0) { 5770a625fd2SDavid S. Miller ent = spu_queue_next(qp, ent); 5780a625fd2SDavid S. Miller 5790a625fd2SDavid S. Miller ent->control = (nbytes - 1); 5800a625fd2SDavid S. Miller ent->src_addr = __pa(walk.data); 5810a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 5820a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 5830a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 5840a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 5850a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 5860a625fd2SDavid S. Miller ent->dest_addr = 0UL; 5870a625fd2SDavid S. Miller 5880a625fd2SDavid S. Miller nbytes = crypto_hash_walk_done(&walk, 0); 5890a625fd2SDavid S. Miller } 5900a625fd2SDavid S. Miller ent->control |= CONTROL_END_OF_BLOCK; 5910a625fd2SDavid S. Miller 5920a625fd2SDavid S. Miller if (submit_and_wait_for_tail(qp, ent) != HV_EOK) 5930a625fd2SDavid S. Miller err = -EINVAL; 5940a625fd2SDavid S. Miller else 5950a625fd2SDavid S. Miller err = 0; 5960a625fd2SDavid S. Miller 5970a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 5980a625fd2SDavid S. Miller 5990a625fd2SDavid S. Miller if (!err) 6000a625fd2SDavid S. Miller memcpy(req->result, hash_loc, result_size); 6010a625fd2SDavid S. Miller out: 6020a625fd2SDavid S. Miller put_cpu(); 6030a625fd2SDavid S. Miller 6040a625fd2SDavid S. Miller return err; 6050a625fd2SDavid S. Miller } 6060a625fd2SDavid S. Miller 6073a2c0346SDavid S. Miller static int n2_hash_async_digest(struct ahash_request *req) 6080a625fd2SDavid S. Miller { 6093a2c0346SDavid S. Miller struct n2_ahash_alg *n2alg = n2_ahash_alg(req->base.tfm); 610c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 6113a2c0346SDavid S. Miller int ds; 6120a625fd2SDavid S. Miller 6133a2c0346SDavid S. Miller ds = n2alg->digest_size; 6140a625fd2SDavid S. Miller if (unlikely(req->nbytes == 0)) { 6153a2c0346SDavid S. Miller memcpy(req->result, n2alg->hash_zero, ds); 6160a625fd2SDavid S. Miller return 0; 6170a625fd2SDavid S. Miller } 6183a2c0346SDavid S. Miller memcpy(&rctx->u, n2alg->hash_init, n2alg->hw_op_hashsz); 6190a625fd2SDavid S. Miller 6203a2c0346SDavid S. Miller return n2_do_async_digest(req, n2alg->auth_type, 6213a2c0346SDavid S. Miller n2alg->hw_op_hashsz, ds, 622dc4ccfd1SDavid S. Miller &rctx->u, 0UL, 0); 623dc4ccfd1SDavid S. Miller } 624dc4ccfd1SDavid S. Miller 625dc4ccfd1SDavid S. Miller static int n2_hmac_async_digest(struct ahash_request *req) 626dc4ccfd1SDavid S. Miller { 627dc4ccfd1SDavid S. Miller struct n2_hmac_alg *n2alg = n2_hmac_alg(req->base.tfm); 628dc4ccfd1SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 629dc4ccfd1SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 630dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); 631dc4ccfd1SDavid S. Miller int ds; 632dc4ccfd1SDavid S. Miller 633dc4ccfd1SDavid S. Miller ds = n2alg->derived.digest_size; 634dc4ccfd1SDavid S. Miller if (unlikely(req->nbytes == 0) || 635dc4ccfd1SDavid S. Miller unlikely(ctx->hash_key_len > N2_HASH_KEY_MAX)) { 636dc4ccfd1SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 637dc4ccfd1SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 638dc4ccfd1SDavid S. Miller 639dc4ccfd1SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 640dc4ccfd1SDavid S. Miller rctx->fallback_req.base.flags = 641dc4ccfd1SDavid S. Miller req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 642dc4ccfd1SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 643dc4ccfd1SDavid S. Miller rctx->fallback_req.src = req->src; 644dc4ccfd1SDavid S. Miller rctx->fallback_req.result = req->result; 645dc4ccfd1SDavid S. Miller 646dc4ccfd1SDavid S. Miller return crypto_ahash_digest(&rctx->fallback_req); 647dc4ccfd1SDavid S. Miller } 648dc4ccfd1SDavid S. Miller memcpy(&rctx->u, n2alg->derived.hash_init, 649dc4ccfd1SDavid S. Miller n2alg->derived.hw_op_hashsz); 650dc4ccfd1SDavid S. Miller 651dc4ccfd1SDavid S. Miller return n2_do_async_digest(req, n2alg->derived.hmac_type, 652dc4ccfd1SDavid S. Miller n2alg->derived.hw_op_hashsz, ds, 653dc4ccfd1SDavid S. Miller &rctx->u, 654dc4ccfd1SDavid S. Miller __pa(&ctx->hash_key), 655dc4ccfd1SDavid S. Miller ctx->hash_key_len); 6560a625fd2SDavid S. Miller } 6570a625fd2SDavid S. Miller 65823a6564aSArd Biesheuvel struct n2_skcipher_context { 6590a625fd2SDavid S. Miller int key_len; 6600a625fd2SDavid S. Miller int enc_type; 6610a625fd2SDavid S. Miller union { 6620a625fd2SDavid S. Miller u8 aes[AES_MAX_KEY_SIZE]; 6630a625fd2SDavid S. Miller u8 des[DES_KEY_SIZE]; 6640a625fd2SDavid S. Miller u8 des3[3 * DES_KEY_SIZE]; 6650a625fd2SDavid S. Miller } key; 6660a625fd2SDavid S. Miller }; 6670a625fd2SDavid S. Miller 6680a625fd2SDavid S. Miller #define N2_CHUNK_ARR_LEN 16 6690a625fd2SDavid S. Miller 6700a625fd2SDavid S. Miller struct n2_crypto_chunk { 6710a625fd2SDavid S. Miller struct list_head entry; 6720a625fd2SDavid S. Miller unsigned long iv_paddr : 44; 6730a625fd2SDavid S. Miller unsigned long arr_len : 20; 6740a625fd2SDavid S. Miller unsigned long dest_paddr; 6750a625fd2SDavid S. Miller unsigned long dest_final; 6760a625fd2SDavid S. Miller struct { 6770a625fd2SDavid S. Miller unsigned long src_paddr : 44; 6780a625fd2SDavid S. Miller unsigned long src_len : 20; 6790a625fd2SDavid S. Miller } arr[N2_CHUNK_ARR_LEN]; 6800a625fd2SDavid S. Miller }; 6810a625fd2SDavid S. Miller 6820a625fd2SDavid S. Miller struct n2_request_context { 68323a6564aSArd Biesheuvel struct skcipher_walk walk; 6840a625fd2SDavid S. Miller struct list_head chunk_list; 6850a625fd2SDavid S. Miller struct n2_crypto_chunk chunk; 6860a625fd2SDavid S. Miller u8 temp_iv[16]; 6870a625fd2SDavid S. Miller }; 6880a625fd2SDavid S. Miller 6890a625fd2SDavid S. Miller /* The SPU allows some level of flexibility for partial cipher blocks 6900a625fd2SDavid S. Miller * being specified in a descriptor. 6910a625fd2SDavid S. Miller * 6920a625fd2SDavid S. Miller * It merely requires that every descriptor's length field is at least 6930a625fd2SDavid S. Miller * as large as the cipher block size. This means that a cipher block 6940a625fd2SDavid S. Miller * can span at most 2 descriptors. However, this does not allow a 6950a625fd2SDavid S. Miller * partial block to span into the final descriptor as that would 6960a625fd2SDavid S. Miller * violate the rule (since every descriptor's length must be at lest 6970a625fd2SDavid S. Miller * the block size). So, for example, assuming an 8 byte block size: 6980a625fd2SDavid S. Miller * 6990a625fd2SDavid S. Miller * 0xe --> 0xa --> 0x8 7000a625fd2SDavid S. Miller * 7010a625fd2SDavid S. Miller * is a valid length sequence, whereas: 7020a625fd2SDavid S. Miller * 7030a625fd2SDavid S. Miller * 0xe --> 0xb --> 0x7 7040a625fd2SDavid S. Miller * 7050a625fd2SDavid S. Miller * is not a valid sequence. 7060a625fd2SDavid S. Miller */ 7070a625fd2SDavid S. Miller 70823a6564aSArd Biesheuvel struct n2_skcipher_alg { 7090a625fd2SDavid S. Miller struct list_head entry; 7100a625fd2SDavid S. Miller u8 enc_type; 71123a6564aSArd Biesheuvel struct skcipher_alg skcipher; 7120a625fd2SDavid S. Miller }; 7130a625fd2SDavid S. Miller 71423a6564aSArd Biesheuvel static inline struct n2_skcipher_alg *n2_skcipher_alg(struct crypto_skcipher *tfm) 7150a625fd2SDavid S. Miller { 71623a6564aSArd Biesheuvel struct skcipher_alg *alg = crypto_skcipher_alg(tfm); 7170a625fd2SDavid S. Miller 71823a6564aSArd Biesheuvel return container_of(alg, struct n2_skcipher_alg, skcipher); 7190a625fd2SDavid S. Miller } 7200a625fd2SDavid S. Miller 72123a6564aSArd Biesheuvel struct n2_skcipher_request_context { 72223a6564aSArd Biesheuvel struct skcipher_walk walk; 7230a625fd2SDavid S. Miller }; 7240a625fd2SDavid S. Miller 72523a6564aSArd Biesheuvel static int n2_aes_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7260a625fd2SDavid S. Miller unsigned int keylen) 7270a625fd2SDavid S. Miller { 72823a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 72923a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 73023a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 7310a625fd2SDavid S. Miller 7320a625fd2SDavid S. Miller ctx->enc_type = (n2alg->enc_type & ENC_TYPE_CHAINING_MASK); 7330a625fd2SDavid S. Miller 7340a625fd2SDavid S. Miller switch (keylen) { 7350a625fd2SDavid S. Miller case AES_KEYSIZE_128: 7360a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES128; 7370a625fd2SDavid S. Miller break; 7380a625fd2SDavid S. Miller case AES_KEYSIZE_192: 7390a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES192; 7400a625fd2SDavid S. Miller break; 7410a625fd2SDavid S. Miller case AES_KEYSIZE_256: 7420a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES256; 7430a625fd2SDavid S. Miller break; 7440a625fd2SDavid S. Miller default: 7450a625fd2SDavid S. Miller return -EINVAL; 7460a625fd2SDavid S. Miller } 7470a625fd2SDavid S. Miller 7480a625fd2SDavid S. Miller ctx->key_len = keylen; 7490a625fd2SDavid S. Miller memcpy(ctx->key.aes, key, keylen); 7500a625fd2SDavid S. Miller return 0; 7510a625fd2SDavid S. Miller } 7520a625fd2SDavid S. Miller 75323a6564aSArd Biesheuvel static int n2_des_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7540a625fd2SDavid S. Miller unsigned int keylen) 7550a625fd2SDavid S. Miller { 75623a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 75723a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 75823a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 7590a625fd2SDavid S. Miller int err; 7600a625fd2SDavid S. Miller 76123a6564aSArd Biesheuvel err = verify_skcipher_des_key(skcipher, key); 762d4b90dbcSArd Biesheuvel if (err) 763d4b90dbcSArd Biesheuvel return err; 764d4b90dbcSArd Biesheuvel 7650a625fd2SDavid S. Miller ctx->enc_type = n2alg->enc_type; 7660a625fd2SDavid S. Miller 7670a625fd2SDavid S. Miller ctx->key_len = keylen; 7680a625fd2SDavid S. Miller memcpy(ctx->key.des, key, keylen); 7690a625fd2SDavid S. Miller return 0; 7700a625fd2SDavid S. Miller } 7710a625fd2SDavid S. Miller 77223a6564aSArd Biesheuvel static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7730a625fd2SDavid S. Miller unsigned int keylen) 7740a625fd2SDavid S. Miller { 77523a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 77623a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 77723a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 778e4fffa5fSHerbert Xu int err; 779e4fffa5fSHerbert Xu 78023a6564aSArd Biesheuvel err = verify_skcipher_des3_key(skcipher, key); 781d4b90dbcSArd Biesheuvel if (err) 782e4fffa5fSHerbert Xu return err; 7830a625fd2SDavid S. Miller 7840a625fd2SDavid S. Miller ctx->enc_type = n2alg->enc_type; 7850a625fd2SDavid S. Miller 7860a625fd2SDavid S. Miller ctx->key_len = keylen; 7870a625fd2SDavid S. Miller memcpy(ctx->key.des3, key, keylen); 7880a625fd2SDavid S. Miller return 0; 7890a625fd2SDavid S. Miller } 7900a625fd2SDavid S. Miller 79123a6564aSArd Biesheuvel static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size) 7920a625fd2SDavid S. Miller { 7930a625fd2SDavid S. Miller int this_len = nbytes; 7940a625fd2SDavid S. Miller 7950a625fd2SDavid S. Miller this_len -= (nbytes & (block_size - 1)); 7960a625fd2SDavid S. Miller return this_len > (1 << 16) ? (1 << 16) : this_len; 7970a625fd2SDavid S. Miller } 7980a625fd2SDavid S. Miller 79923a6564aSArd Biesheuvel static int __n2_crypt_chunk(struct crypto_skcipher *skcipher, 80023a6564aSArd Biesheuvel struct n2_crypto_chunk *cp, 8010a625fd2SDavid S. Miller struct spu_queue *qp, bool encrypt) 8020a625fd2SDavid S. Miller { 80323a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_skcipher_ctx(skcipher); 8040a625fd2SDavid S. Miller struct cwq_initial_entry *ent; 8050a625fd2SDavid S. Miller bool in_place; 8060a625fd2SDavid S. Miller int i; 8070a625fd2SDavid S. Miller 8080a625fd2SDavid S. Miller ent = spu_queue_alloc(qp, cp->arr_len); 8090a625fd2SDavid S. Miller if (!ent) { 8100a625fd2SDavid S. Miller pr_info("queue_alloc() of %d fails\n", 8110a625fd2SDavid S. Miller cp->arr_len); 8120a625fd2SDavid S. Miller return -EBUSY; 8130a625fd2SDavid S. Miller } 8140a625fd2SDavid S. Miller 8150a625fd2SDavid S. Miller in_place = (cp->dest_paddr == cp->arr[0].src_paddr); 8160a625fd2SDavid S. Miller 8170a625fd2SDavid S. Miller ent->control = control_word_base(cp->arr[0].src_len, 8180a625fd2SDavid S. Miller 0, ctx->enc_type, 0, 0, 8190a625fd2SDavid S. Miller false, true, false, encrypt, 8200a625fd2SDavid S. Miller OPCODE_ENCRYPT | 8210a625fd2SDavid S. Miller (in_place ? OPCODE_INPLACE_BIT : 0)); 8220a625fd2SDavid S. Miller ent->src_addr = cp->arr[0].src_paddr; 8230a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 8240a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 8250a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 8260a625fd2SDavid S. Miller ent->enc_key_addr = __pa(&ctx->key); 8270a625fd2SDavid S. Miller ent->enc_iv_addr = cp->iv_paddr; 8280a625fd2SDavid S. Miller ent->dest_addr = (in_place ? 0UL : cp->dest_paddr); 8290a625fd2SDavid S. Miller 8300a625fd2SDavid S. Miller for (i = 1; i < cp->arr_len; i++) { 8310a625fd2SDavid S. Miller ent = spu_queue_next(qp, ent); 8320a625fd2SDavid S. Miller 8330a625fd2SDavid S. Miller ent->control = cp->arr[i].src_len - 1; 8340a625fd2SDavid S. Miller ent->src_addr = cp->arr[i].src_paddr; 8350a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 8360a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 8370a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 8380a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 8390a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 8400a625fd2SDavid S. Miller ent->dest_addr = 0UL; 8410a625fd2SDavid S. Miller } 8420a625fd2SDavid S. Miller ent->control |= CONTROL_END_OF_BLOCK; 8430a625fd2SDavid S. Miller 8440a625fd2SDavid S. Miller return (spu_queue_submit(qp, ent) != HV_EOK) ? -EINVAL : 0; 8450a625fd2SDavid S. Miller } 8460a625fd2SDavid S. Miller 84723a6564aSArd Biesheuvel static int n2_compute_chunks(struct skcipher_request *req) 8480a625fd2SDavid S. Miller { 84923a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 85023a6564aSArd Biesheuvel struct skcipher_walk *walk = &rctx->walk; 8510a625fd2SDavid S. Miller struct n2_crypto_chunk *chunk; 8520a625fd2SDavid S. Miller unsigned long dest_prev; 8530a625fd2SDavid S. Miller unsigned int tot_len; 8540a625fd2SDavid S. Miller bool prev_in_place; 8550a625fd2SDavid S. Miller int err, nbytes; 8560a625fd2SDavid S. Miller 85723a6564aSArd Biesheuvel err = skcipher_walk_async(walk, req); 8580a625fd2SDavid S. Miller if (err) 8590a625fd2SDavid S. Miller return err; 8600a625fd2SDavid S. Miller 8610a625fd2SDavid S. Miller INIT_LIST_HEAD(&rctx->chunk_list); 8620a625fd2SDavid S. Miller 8630a625fd2SDavid S. Miller chunk = &rctx->chunk; 8640a625fd2SDavid S. Miller INIT_LIST_HEAD(&chunk->entry); 8650a625fd2SDavid S. Miller 8660a625fd2SDavid S. Miller chunk->iv_paddr = 0UL; 8670a625fd2SDavid S. Miller chunk->arr_len = 0; 8680a625fd2SDavid S. Miller chunk->dest_paddr = 0UL; 8690a625fd2SDavid S. Miller 8700a625fd2SDavid S. Miller prev_in_place = false; 8710a625fd2SDavid S. Miller dest_prev = ~0UL; 8720a625fd2SDavid S. Miller tot_len = 0; 8730a625fd2SDavid S. Miller 8740a625fd2SDavid S. Miller while ((nbytes = walk->nbytes) != 0) { 8750a625fd2SDavid S. Miller unsigned long dest_paddr, src_paddr; 8760a625fd2SDavid S. Miller bool in_place; 8770a625fd2SDavid S. Miller int this_len; 8780a625fd2SDavid S. Miller 87923a6564aSArd Biesheuvel src_paddr = (page_to_phys(walk->src.phys.page) + 88023a6564aSArd Biesheuvel walk->src.phys.offset); 88123a6564aSArd Biesheuvel dest_paddr = (page_to_phys(walk->dst.phys.page) + 88223a6564aSArd Biesheuvel walk->dst.phys.offset); 8830a625fd2SDavid S. Miller in_place = (src_paddr == dest_paddr); 88423a6564aSArd Biesheuvel this_len = skcipher_descriptor_len(nbytes, walk->blocksize); 8850a625fd2SDavid S. Miller 8860a625fd2SDavid S. Miller if (chunk->arr_len != 0) { 8870a625fd2SDavid S. Miller if (in_place != prev_in_place || 8880a625fd2SDavid S. Miller (!prev_in_place && 8890a625fd2SDavid S. Miller dest_paddr != dest_prev) || 8900a625fd2SDavid S. Miller chunk->arr_len == N2_CHUNK_ARR_LEN || 8910a625fd2SDavid S. Miller tot_len + this_len > (1 << 16)) { 8920a625fd2SDavid S. Miller chunk->dest_final = dest_prev; 8930a625fd2SDavid S. Miller list_add_tail(&chunk->entry, 8940a625fd2SDavid S. Miller &rctx->chunk_list); 8950a625fd2SDavid S. Miller chunk = kzalloc(sizeof(*chunk), GFP_ATOMIC); 8960a625fd2SDavid S. Miller if (!chunk) { 8970a625fd2SDavid S. Miller err = -ENOMEM; 8980a625fd2SDavid S. Miller break; 8990a625fd2SDavid S. Miller } 9000a625fd2SDavid S. Miller INIT_LIST_HEAD(&chunk->entry); 9010a625fd2SDavid S. Miller } 9020a625fd2SDavid S. Miller } 9030a625fd2SDavid S. Miller if (chunk->arr_len == 0) { 9040a625fd2SDavid S. Miller chunk->dest_paddr = dest_paddr; 9050a625fd2SDavid S. Miller tot_len = 0; 9060a625fd2SDavid S. Miller } 9070a625fd2SDavid S. Miller chunk->arr[chunk->arr_len].src_paddr = src_paddr; 9080a625fd2SDavid S. Miller chunk->arr[chunk->arr_len].src_len = this_len; 9090a625fd2SDavid S. Miller chunk->arr_len++; 9100a625fd2SDavid S. Miller 9110a625fd2SDavid S. Miller dest_prev = dest_paddr + this_len; 9120a625fd2SDavid S. Miller prev_in_place = in_place; 9130a625fd2SDavid S. Miller tot_len += this_len; 9140a625fd2SDavid S. Miller 91523a6564aSArd Biesheuvel err = skcipher_walk_done(walk, nbytes - this_len); 9160a625fd2SDavid S. Miller if (err) 9170a625fd2SDavid S. Miller break; 9180a625fd2SDavid S. Miller } 9190a625fd2SDavid S. Miller if (!err && chunk->arr_len != 0) { 9200a625fd2SDavid S. Miller chunk->dest_final = dest_prev; 9210a625fd2SDavid S. Miller list_add_tail(&chunk->entry, &rctx->chunk_list); 9220a625fd2SDavid S. Miller } 9230a625fd2SDavid S. Miller 9240a625fd2SDavid S. Miller return err; 9250a625fd2SDavid S. Miller } 9260a625fd2SDavid S. Miller 92723a6564aSArd Biesheuvel static void n2_chunk_complete(struct skcipher_request *req, void *final_iv) 9280a625fd2SDavid S. Miller { 92923a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 9300a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 9310a625fd2SDavid S. Miller 9320a625fd2SDavid S. Miller if (final_iv) 9330a625fd2SDavid S. Miller memcpy(rctx->walk.iv, final_iv, rctx->walk.blocksize); 9340a625fd2SDavid S. Miller 9350a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { 9360a625fd2SDavid S. Miller list_del(&c->entry); 9370a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 9380a625fd2SDavid S. Miller kfree(c); 9390a625fd2SDavid S. Miller } 9400a625fd2SDavid S. Miller 9410a625fd2SDavid S. Miller } 9420a625fd2SDavid S. Miller 94323a6564aSArd Biesheuvel static int n2_do_ecb(struct skcipher_request *req, bool encrypt) 9440a625fd2SDavid S. Miller { 94523a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 94623a6564aSArd Biesheuvel struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); 9470a625fd2SDavid S. Miller int err = n2_compute_chunks(req); 9480a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 9490a625fd2SDavid S. Miller unsigned long flags, hv_ret; 9500a625fd2SDavid S. Miller struct spu_queue *qp; 9510a625fd2SDavid S. Miller 9520a625fd2SDavid S. Miller if (err) 9530a625fd2SDavid S. Miller return err; 9540a625fd2SDavid S. Miller 9550a625fd2SDavid S. Miller qp = cpu_to_cwq[get_cpu()]; 9560a625fd2SDavid S. Miller err = -ENODEV; 9570a625fd2SDavid S. Miller if (!qp) 9580a625fd2SDavid S. Miller goto out; 9590a625fd2SDavid S. Miller 9600a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 9610a625fd2SDavid S. Miller 9620a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { 9630a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, encrypt); 9640a625fd2SDavid S. Miller if (err) 9650a625fd2SDavid S. Miller break; 9660a625fd2SDavid S. Miller list_del(&c->entry); 9670a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 9680a625fd2SDavid S. Miller kfree(c); 9690a625fd2SDavid S. Miller } 9700a625fd2SDavid S. Miller if (!err) { 9710a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 9720a625fd2SDavid S. Miller if (hv_ret != HV_EOK) 9730a625fd2SDavid S. Miller err = -EINVAL; 9740a625fd2SDavid S. Miller } 9750a625fd2SDavid S. Miller 9760a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 9770a625fd2SDavid S. Miller 978e27303b2SThomas Meyer out: 9790a625fd2SDavid S. Miller put_cpu(); 9800a625fd2SDavid S. Miller 9810a625fd2SDavid S. Miller n2_chunk_complete(req, NULL); 9820a625fd2SDavid S. Miller return err; 9830a625fd2SDavid S. Miller } 9840a625fd2SDavid S. Miller 98523a6564aSArd Biesheuvel static int n2_encrypt_ecb(struct skcipher_request *req) 9860a625fd2SDavid S. Miller { 9870a625fd2SDavid S. Miller return n2_do_ecb(req, true); 9880a625fd2SDavid S. Miller } 9890a625fd2SDavid S. Miller 99023a6564aSArd Biesheuvel static int n2_decrypt_ecb(struct skcipher_request *req) 9910a625fd2SDavid S. Miller { 9920a625fd2SDavid S. Miller return n2_do_ecb(req, false); 9930a625fd2SDavid S. Miller } 9940a625fd2SDavid S. Miller 99523a6564aSArd Biesheuvel static int n2_do_chaining(struct skcipher_request *req, bool encrypt) 9960a625fd2SDavid S. Miller { 99723a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 99823a6564aSArd Biesheuvel struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); 9990a625fd2SDavid S. Miller unsigned long flags, hv_ret, iv_paddr; 10000a625fd2SDavid S. Miller int err = n2_compute_chunks(req); 10010a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 10020a625fd2SDavid S. Miller struct spu_queue *qp; 10030a625fd2SDavid S. Miller void *final_iv_addr; 10040a625fd2SDavid S. Miller 10050a625fd2SDavid S. Miller final_iv_addr = NULL; 10060a625fd2SDavid S. Miller 10070a625fd2SDavid S. Miller if (err) 10080a625fd2SDavid S. Miller return err; 10090a625fd2SDavid S. Miller 10100a625fd2SDavid S. Miller qp = cpu_to_cwq[get_cpu()]; 10110a625fd2SDavid S. Miller err = -ENODEV; 10120a625fd2SDavid S. Miller if (!qp) 10130a625fd2SDavid S. Miller goto out; 10140a625fd2SDavid S. Miller 10150a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 10160a625fd2SDavid S. Miller 10170a625fd2SDavid S. Miller if (encrypt) { 10180a625fd2SDavid S. Miller iv_paddr = __pa(rctx->walk.iv); 10190a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, 10200a625fd2SDavid S. Miller entry) { 10210a625fd2SDavid S. Miller c->iv_paddr = iv_paddr; 10220a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, true); 10230a625fd2SDavid S. Miller if (err) 10240a625fd2SDavid S. Miller break; 10250a625fd2SDavid S. Miller iv_paddr = c->dest_final - rctx->walk.blocksize; 10260a625fd2SDavid S. Miller list_del(&c->entry); 10270a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 10280a625fd2SDavid S. Miller kfree(c); 10290a625fd2SDavid S. Miller } 10300a625fd2SDavid S. Miller final_iv_addr = __va(iv_paddr); 10310a625fd2SDavid S. Miller } else { 10320a625fd2SDavid S. Miller list_for_each_entry_safe_reverse(c, tmp, &rctx->chunk_list, 10330a625fd2SDavid S. Miller entry) { 10340a625fd2SDavid S. Miller if (c == &rctx->chunk) { 10350a625fd2SDavid S. Miller iv_paddr = __pa(rctx->walk.iv); 10360a625fd2SDavid S. Miller } else { 10370a625fd2SDavid S. Miller iv_paddr = (tmp->arr[tmp->arr_len-1].src_paddr + 10380a625fd2SDavid S. Miller tmp->arr[tmp->arr_len-1].src_len - 10390a625fd2SDavid S. Miller rctx->walk.blocksize); 10400a625fd2SDavid S. Miller } 10410a625fd2SDavid S. Miller if (!final_iv_addr) { 10420a625fd2SDavid S. Miller unsigned long pa; 10430a625fd2SDavid S. Miller 10440a625fd2SDavid S. Miller pa = (c->arr[c->arr_len-1].src_paddr + 10450a625fd2SDavid S. Miller c->arr[c->arr_len-1].src_len - 10460a625fd2SDavid S. Miller rctx->walk.blocksize); 10470a625fd2SDavid S. Miller final_iv_addr = rctx->temp_iv; 10480a625fd2SDavid S. Miller memcpy(rctx->temp_iv, __va(pa), 10490a625fd2SDavid S. Miller rctx->walk.blocksize); 10500a625fd2SDavid S. Miller } 10510a625fd2SDavid S. Miller c->iv_paddr = iv_paddr; 10520a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, false); 10530a625fd2SDavid S. Miller if (err) 10540a625fd2SDavid S. Miller break; 10550a625fd2SDavid S. Miller list_del(&c->entry); 10560a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 10570a625fd2SDavid S. Miller kfree(c); 10580a625fd2SDavid S. Miller } 10590a625fd2SDavid S. Miller } 10600a625fd2SDavid S. Miller if (!err) { 10610a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 10620a625fd2SDavid S. Miller if (hv_ret != HV_EOK) 10630a625fd2SDavid S. Miller err = -EINVAL; 10640a625fd2SDavid S. Miller } 10650a625fd2SDavid S. Miller 10660a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 10670a625fd2SDavid S. Miller 1068e27303b2SThomas Meyer out: 10690a625fd2SDavid S. Miller put_cpu(); 10700a625fd2SDavid S. Miller 10710a625fd2SDavid S. Miller n2_chunk_complete(req, err ? NULL : final_iv_addr); 10720a625fd2SDavid S. Miller return err; 10730a625fd2SDavid S. Miller } 10740a625fd2SDavid S. Miller 107523a6564aSArd Biesheuvel static int n2_encrypt_chaining(struct skcipher_request *req) 10760a625fd2SDavid S. Miller { 10770a625fd2SDavid S. Miller return n2_do_chaining(req, true); 10780a625fd2SDavid S. Miller } 10790a625fd2SDavid S. Miller 108023a6564aSArd Biesheuvel static int n2_decrypt_chaining(struct skcipher_request *req) 10810a625fd2SDavid S. Miller { 10820a625fd2SDavid S. Miller return n2_do_chaining(req, false); 10830a625fd2SDavid S. Miller } 10840a625fd2SDavid S. Miller 108523a6564aSArd Biesheuvel struct n2_skcipher_tmpl { 10860a625fd2SDavid S. Miller const char *name; 10870a625fd2SDavid S. Miller const char *drv_name; 10880a625fd2SDavid S. Miller u8 block_size; 10890a625fd2SDavid S. Miller u8 enc_type; 109023a6564aSArd Biesheuvel struct skcipher_alg skcipher; 10910a625fd2SDavid S. Miller }; 10920a625fd2SDavid S. Miller 109323a6564aSArd Biesheuvel static const struct n2_skcipher_tmpl skcipher_tmpls[] = { 10940a625fd2SDavid S. Miller /* DES: ECB CBC and CFB are supported */ 10950a625fd2SDavid S. Miller { .name = "ecb(des)", 10960a625fd2SDavid S. Miller .drv_name = "ecb-des", 10970a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 10980a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 10990a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 110023a6564aSArd Biesheuvel .skcipher = { 11010a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11020a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11030a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11040a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11050a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11060a625fd2SDavid S. Miller }, 11070a625fd2SDavid S. Miller }, 11080a625fd2SDavid S. Miller { .name = "cbc(des)", 11090a625fd2SDavid S. Miller .drv_name = "cbc-des", 11100a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11110a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 11120a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 111323a6564aSArd Biesheuvel .skcipher = { 11140a625fd2SDavid S. Miller .ivsize = DES_BLOCK_SIZE, 11150a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11160a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11170a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11180a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11190a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11200a625fd2SDavid S. Miller }, 11210a625fd2SDavid S. Miller }, 11220a625fd2SDavid S. Miller { .name = "cfb(des)", 11230a625fd2SDavid S. Miller .drv_name = "cfb-des", 11240a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11250a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 11260a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CFB), 112723a6564aSArd Biesheuvel .skcipher = { 11280a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11290a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11300a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11310a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11320a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11330a625fd2SDavid S. Miller }, 11340a625fd2SDavid S. Miller }, 11350a625fd2SDavid S. Miller 11360a625fd2SDavid S. Miller /* 3DES: ECB CBC and CFB are supported */ 11370a625fd2SDavid S. Miller { .name = "ecb(des3_ede)", 11380a625fd2SDavid S. Miller .drv_name = "ecb-3des", 11390a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11400a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11410a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 114223a6564aSArd Biesheuvel .skcipher = { 11430a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11440a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11450a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11460a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11470a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11480a625fd2SDavid S. Miller }, 11490a625fd2SDavid S. Miller }, 11500a625fd2SDavid S. Miller { .name = "cbc(des3_ede)", 11510a625fd2SDavid S. Miller .drv_name = "cbc-3des", 11520a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11530a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11540a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 115523a6564aSArd Biesheuvel .skcipher = { 11560a625fd2SDavid S. Miller .ivsize = DES_BLOCK_SIZE, 11570a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11580a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11590a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11600a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11610a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11620a625fd2SDavid S. Miller }, 11630a625fd2SDavid S. Miller }, 11640a625fd2SDavid S. Miller { .name = "cfb(des3_ede)", 11650a625fd2SDavid S. Miller .drv_name = "cfb-3des", 11660a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11670a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11680a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CFB), 116923a6564aSArd Biesheuvel .skcipher = { 11700a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11710a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11720a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11730a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11740a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11750a625fd2SDavid S. Miller }, 11760a625fd2SDavid S. Miller }, 11770a625fd2SDavid S. Miller /* AES: ECB CBC and CTR are supported */ 11780a625fd2SDavid S. Miller { .name = "ecb(aes)", 11790a625fd2SDavid S. Miller .drv_name = "ecb-aes", 11800a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 11810a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 11820a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 118323a6564aSArd Biesheuvel .skcipher = { 11840a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 11850a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 11860a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 11870a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11880a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11890a625fd2SDavid S. Miller }, 11900a625fd2SDavid S. Miller }, 11910a625fd2SDavid S. Miller { .name = "cbc(aes)", 11920a625fd2SDavid S. Miller .drv_name = "cbc-aes", 11930a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 11940a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 11950a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 119623a6564aSArd Biesheuvel .skcipher = { 11970a625fd2SDavid S. Miller .ivsize = AES_BLOCK_SIZE, 11980a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 11990a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 12000a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 12010a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 12020a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 12030a625fd2SDavid S. Miller }, 12040a625fd2SDavid S. Miller }, 12050a625fd2SDavid S. Miller { .name = "ctr(aes)", 12060a625fd2SDavid S. Miller .drv_name = "ctr-aes", 12070a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 12080a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 12090a625fd2SDavid S. Miller ENC_TYPE_CHAINING_COUNTER), 121023a6564aSArd Biesheuvel .skcipher = { 12110a625fd2SDavid S. Miller .ivsize = AES_BLOCK_SIZE, 12120a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 12130a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 12140a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 12150a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 12160a625fd2SDavid S. Miller .decrypt = n2_encrypt_chaining, 12170a625fd2SDavid S. Miller }, 12180a625fd2SDavid S. Miller }, 12190a625fd2SDavid S. Miller 12200a625fd2SDavid S. Miller }; 122123a6564aSArd Biesheuvel #define NUM_CIPHER_TMPLS ARRAY_SIZE(skcipher_tmpls) 12220a625fd2SDavid S. Miller 122323a6564aSArd Biesheuvel static LIST_HEAD(skcipher_algs); 12240a625fd2SDavid S. Miller 12250a625fd2SDavid S. Miller struct n2_hash_tmpl { 12260a625fd2SDavid S. Miller const char *name; 12278054b800SLABBE Corentin const u8 *hash_zero; 12286d77282fSHerbert Xu const u8 *hash_init; 12293a2c0346SDavid S. Miller u8 hw_op_hashsz; 12300a625fd2SDavid S. Miller u8 digest_size; 12310a625fd2SDavid S. Miller u8 block_size; 12323a2c0346SDavid S. Miller u8 auth_type; 1233dc4ccfd1SDavid S. Miller u8 hmac_type; 12340a625fd2SDavid S. Miller }; 12353a2c0346SDavid S. Miller 12366d77282fSHerbert Xu static const __le32 n2_md5_init[MD5_HASH_WORDS] = { 1237d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H0), 1238d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H1), 1239d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H2), 1240d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H3), 12413a2c0346SDavid S. Miller }; 1242527aa895SHans de Goede static const u32 n2_sha1_init[SHA1_DIGEST_SIZE / 4] = { 12433a2c0346SDavid S. Miller SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4, 12443a2c0346SDavid S. Miller }; 1245527aa895SHans de Goede static const u32 n2_sha256_init[SHA256_DIGEST_SIZE / 4] = { 12463a2c0346SDavid S. Miller SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3, 12473a2c0346SDavid S. Miller SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7, 12483a2c0346SDavid S. Miller }; 1249527aa895SHans de Goede static const u32 n2_sha224_init[SHA256_DIGEST_SIZE / 4] = { 12503a2c0346SDavid S. Miller SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3, 12513a2c0346SDavid S. Miller SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7, 12523a2c0346SDavid S. Miller }; 12533a2c0346SDavid S. Miller 12540a625fd2SDavid S. Miller static const struct n2_hash_tmpl hash_tmpls[] = { 12550a625fd2SDavid S. Miller { .name = "md5", 12568054b800SLABBE Corentin .hash_zero = md5_zero_message_hash, 12576d77282fSHerbert Xu .hash_init = (u8 *)n2_md5_init, 12583a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_MD5, 1259dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_MD5, 12603a2c0346SDavid S. Miller .hw_op_hashsz = MD5_DIGEST_SIZE, 12610a625fd2SDavid S. Miller .digest_size = MD5_DIGEST_SIZE, 12620a625fd2SDavid S. Miller .block_size = MD5_HMAC_BLOCK_SIZE }, 12630a625fd2SDavid S. Miller { .name = "sha1", 12648054b800SLABBE Corentin .hash_zero = sha1_zero_message_hash, 12656d77282fSHerbert Xu .hash_init = (u8 *)n2_sha1_init, 12663a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA1, 1267dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_SHA1, 12683a2c0346SDavid S. Miller .hw_op_hashsz = SHA1_DIGEST_SIZE, 12690a625fd2SDavid S. Miller .digest_size = SHA1_DIGEST_SIZE, 12700a625fd2SDavid S. Miller .block_size = SHA1_BLOCK_SIZE }, 12710a625fd2SDavid S. Miller { .name = "sha256", 12728054b800SLABBE Corentin .hash_zero = sha256_zero_message_hash, 12736d77282fSHerbert Xu .hash_init = (u8 *)n2_sha256_init, 12743a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA256, 1275dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_SHA256, 12763a2c0346SDavid S. Miller .hw_op_hashsz = SHA256_DIGEST_SIZE, 12770a625fd2SDavid S. Miller .digest_size = SHA256_DIGEST_SIZE, 12780a625fd2SDavid S. Miller .block_size = SHA256_BLOCK_SIZE }, 12790a625fd2SDavid S. Miller { .name = "sha224", 12808054b800SLABBE Corentin .hash_zero = sha224_zero_message_hash, 12816d77282fSHerbert Xu .hash_init = (u8 *)n2_sha224_init, 12823a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA256, 1283dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_RESERVED, 12843a2c0346SDavid S. Miller .hw_op_hashsz = SHA256_DIGEST_SIZE, 12850a625fd2SDavid S. Miller .digest_size = SHA224_DIGEST_SIZE, 12860a625fd2SDavid S. Miller .block_size = SHA224_BLOCK_SIZE }, 12870a625fd2SDavid S. Miller }; 12880a625fd2SDavid S. Miller #define NUM_HASH_TMPLS ARRAY_SIZE(hash_tmpls) 12890a625fd2SDavid S. Miller 12900a625fd2SDavid S. Miller static LIST_HEAD(ahash_algs); 1291dc4ccfd1SDavid S. Miller static LIST_HEAD(hmac_algs); 12920a625fd2SDavid S. Miller 12930a625fd2SDavid S. Miller static int algs_registered; 12940a625fd2SDavid S. Miller 12950a625fd2SDavid S. Miller static void __n2_unregister_algs(void) 12960a625fd2SDavid S. Miller { 129723a6564aSArd Biesheuvel struct n2_skcipher_alg *skcipher, *skcipher_tmp; 12980a625fd2SDavid S. Miller struct n2_ahash_alg *alg, *alg_tmp; 1299dc4ccfd1SDavid S. Miller struct n2_hmac_alg *hmac, *hmac_tmp; 13000a625fd2SDavid S. Miller 130123a6564aSArd Biesheuvel list_for_each_entry_safe(skcipher, skcipher_tmp, &skcipher_algs, entry) { 130223a6564aSArd Biesheuvel crypto_unregister_skcipher(&skcipher->skcipher); 130323a6564aSArd Biesheuvel list_del(&skcipher->entry); 130423a6564aSArd Biesheuvel kfree(skcipher); 13050a625fd2SDavid S. Miller } 1306dc4ccfd1SDavid S. Miller list_for_each_entry_safe(hmac, hmac_tmp, &hmac_algs, derived.entry) { 1307dc4ccfd1SDavid S. Miller crypto_unregister_ahash(&hmac->derived.alg); 1308dc4ccfd1SDavid S. Miller list_del(&hmac->derived.entry); 1309dc4ccfd1SDavid S. Miller kfree(hmac); 1310dc4ccfd1SDavid S. Miller } 13110a625fd2SDavid S. Miller list_for_each_entry_safe(alg, alg_tmp, &ahash_algs, entry) { 13120a625fd2SDavid S. Miller crypto_unregister_ahash(&alg->alg); 13130a625fd2SDavid S. Miller list_del(&alg->entry); 13140a625fd2SDavid S. Miller kfree(alg); 13150a625fd2SDavid S. Miller } 13160a625fd2SDavid S. Miller } 13170a625fd2SDavid S. Miller 131823a6564aSArd Biesheuvel static int n2_skcipher_init_tfm(struct crypto_skcipher *tfm) 13190a625fd2SDavid S. Miller { 132023a6564aSArd Biesheuvel crypto_skcipher_set_reqsize(tfm, sizeof(struct n2_request_context)); 13210a625fd2SDavid S. Miller return 0; 13220a625fd2SDavid S. Miller } 13230a625fd2SDavid S. Miller 132423a6564aSArd Biesheuvel static int __n2_register_one_skcipher(const struct n2_skcipher_tmpl *tmpl) 13250a625fd2SDavid S. Miller { 132623a6564aSArd Biesheuvel struct n2_skcipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 132723a6564aSArd Biesheuvel struct skcipher_alg *alg; 13280a625fd2SDavid S. Miller int err; 13290a625fd2SDavid S. Miller 13300a625fd2SDavid S. Miller if (!p) 13310a625fd2SDavid S. Miller return -ENOMEM; 13320a625fd2SDavid S. Miller 133323a6564aSArd Biesheuvel alg = &p->skcipher; 133423a6564aSArd Biesheuvel *alg = tmpl->skcipher; 13350a625fd2SDavid S. Miller 133623a6564aSArd Biesheuvel snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); 133723a6564aSArd Biesheuvel snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name); 133823a6564aSArd Biesheuvel alg->base.cra_priority = N2_CRA_PRIORITY; 1339b8aa7dc5SMikulas Patocka alg->base.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC | 1340b8aa7dc5SMikulas Patocka CRYPTO_ALG_ALLOCATES_MEMORY; 134123a6564aSArd Biesheuvel alg->base.cra_blocksize = tmpl->block_size; 13420a625fd2SDavid S. Miller p->enc_type = tmpl->enc_type; 134323a6564aSArd Biesheuvel alg->base.cra_ctxsize = sizeof(struct n2_skcipher_context); 134423a6564aSArd Biesheuvel alg->base.cra_module = THIS_MODULE; 134523a6564aSArd Biesheuvel alg->init = n2_skcipher_init_tfm; 13460a625fd2SDavid S. Miller 134723a6564aSArd Biesheuvel list_add(&p->entry, &skcipher_algs); 134823a6564aSArd Biesheuvel err = crypto_register_skcipher(alg); 13490a625fd2SDavid S. Miller if (err) { 135023a6564aSArd Biesheuvel pr_err("%s alg registration failed\n", alg->base.cra_name); 13510a625fd2SDavid S. Miller list_del(&p->entry); 13520a625fd2SDavid S. Miller kfree(p); 135338511108SDavid S. Miller } else { 135423a6564aSArd Biesheuvel pr_info("%s alg registered\n", alg->base.cra_name); 13550a625fd2SDavid S. Miller } 13560a625fd2SDavid S. Miller return err; 13570a625fd2SDavid S. Miller } 13580a625fd2SDavid S. Miller 135949cfe4dbSGreg Kroah-Hartman static int __n2_register_one_hmac(struct n2_ahash_alg *n2ahash) 1360dc4ccfd1SDavid S. Miller { 1361dc4ccfd1SDavid S. Miller struct n2_hmac_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 1362dc4ccfd1SDavid S. Miller struct ahash_alg *ahash; 1363dc4ccfd1SDavid S. Miller struct crypto_alg *base; 1364dc4ccfd1SDavid S. Miller int err; 1365dc4ccfd1SDavid S. Miller 1366dc4ccfd1SDavid S. Miller if (!p) 1367dc4ccfd1SDavid S. Miller return -ENOMEM; 1368dc4ccfd1SDavid S. Miller 1369dc4ccfd1SDavid S. Miller p->child_alg = n2ahash->alg.halg.base.cra_name; 1370dc4ccfd1SDavid S. Miller memcpy(&p->derived, n2ahash, sizeof(struct n2_ahash_alg)); 1371dc4ccfd1SDavid S. Miller INIT_LIST_HEAD(&p->derived.entry); 1372dc4ccfd1SDavid S. Miller 1373dc4ccfd1SDavid S. Miller ahash = &p->derived.alg; 1374dc4ccfd1SDavid S. Miller ahash->digest = n2_hmac_async_digest; 1375dc4ccfd1SDavid S. Miller ahash->setkey = n2_hmac_async_setkey; 1376dc4ccfd1SDavid S. Miller 1377dc4ccfd1SDavid S. Miller base = &ahash->halg.base; 1378dc4ccfd1SDavid S. Miller snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)", p->child_alg); 1379dc4ccfd1SDavid S. Miller snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "hmac-%s-n2", p->child_alg); 1380dc4ccfd1SDavid S. Miller 1381dc4ccfd1SDavid S. Miller base->cra_ctxsize = sizeof(struct n2_hmac_ctx); 1382dc4ccfd1SDavid S. Miller base->cra_init = n2_hmac_cra_init; 1383dc4ccfd1SDavid S. Miller base->cra_exit = n2_hmac_cra_exit; 1384dc4ccfd1SDavid S. Miller 1385dc4ccfd1SDavid S. Miller list_add(&p->derived.entry, &hmac_algs); 1386dc4ccfd1SDavid S. Miller err = crypto_register_ahash(ahash); 1387dc4ccfd1SDavid S. Miller if (err) { 1388dc4ccfd1SDavid S. Miller pr_err("%s alg registration failed\n", base->cra_name); 1389dc4ccfd1SDavid S. Miller list_del(&p->derived.entry); 1390dc4ccfd1SDavid S. Miller kfree(p); 1391dc4ccfd1SDavid S. Miller } else { 1392dc4ccfd1SDavid S. Miller pr_info("%s alg registered\n", base->cra_name); 1393dc4ccfd1SDavid S. Miller } 1394dc4ccfd1SDavid S. Miller return err; 1395dc4ccfd1SDavid S. Miller } 1396dc4ccfd1SDavid S. Miller 139749cfe4dbSGreg Kroah-Hartman static int __n2_register_one_ahash(const struct n2_hash_tmpl *tmpl) 13980a625fd2SDavid S. Miller { 13990a625fd2SDavid S. Miller struct n2_ahash_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 14000a625fd2SDavid S. Miller struct hash_alg_common *halg; 14010a625fd2SDavid S. Miller struct crypto_alg *base; 14020a625fd2SDavid S. Miller struct ahash_alg *ahash; 14030a625fd2SDavid S. Miller int err; 14040a625fd2SDavid S. Miller 14050a625fd2SDavid S. Miller if (!p) 14060a625fd2SDavid S. Miller return -ENOMEM; 14070a625fd2SDavid S. Miller 14083a2c0346SDavid S. Miller p->hash_zero = tmpl->hash_zero; 14093a2c0346SDavid S. Miller p->hash_init = tmpl->hash_init; 14103a2c0346SDavid S. Miller p->auth_type = tmpl->auth_type; 1411dc4ccfd1SDavid S. Miller p->hmac_type = tmpl->hmac_type; 14123a2c0346SDavid S. Miller p->hw_op_hashsz = tmpl->hw_op_hashsz; 14133a2c0346SDavid S. Miller p->digest_size = tmpl->digest_size; 14143a2c0346SDavid S. Miller 14150a625fd2SDavid S. Miller ahash = &p->alg; 14160a625fd2SDavid S. Miller ahash->init = n2_hash_async_init; 14170a625fd2SDavid S. Miller ahash->update = n2_hash_async_update; 14180a625fd2SDavid S. Miller ahash->final = n2_hash_async_final; 14190a625fd2SDavid S. Miller ahash->finup = n2_hash_async_finup; 14203a2c0346SDavid S. Miller ahash->digest = n2_hash_async_digest; 1421378fe6fbSKamil Konieczny ahash->export = n2_hash_async_noexport; 1422378fe6fbSKamil Konieczny ahash->import = n2_hash_async_noimport; 14230a625fd2SDavid S. Miller 14240a625fd2SDavid S. Miller halg = &ahash->halg; 14250a625fd2SDavid S. Miller halg->digestsize = tmpl->digest_size; 14260a625fd2SDavid S. Miller 14270a625fd2SDavid S. Miller base = &halg->base; 14280a625fd2SDavid S. Miller snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); 14290a625fd2SDavid S. Miller snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->name); 14300a625fd2SDavid S. Miller base->cra_priority = N2_CRA_PRIORITY; 14316a38f622SEric Biggers base->cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | 1432d912bb76SNikos Mavrogiannopoulos CRYPTO_ALG_NEED_FALLBACK; 14330a625fd2SDavid S. Miller base->cra_blocksize = tmpl->block_size; 14340a625fd2SDavid S. Miller base->cra_ctxsize = sizeof(struct n2_hash_ctx); 14350a625fd2SDavid S. Miller base->cra_module = THIS_MODULE; 14360a625fd2SDavid S. Miller base->cra_init = n2_hash_cra_init; 14370a625fd2SDavid S. Miller base->cra_exit = n2_hash_cra_exit; 14380a625fd2SDavid S. Miller 14390a625fd2SDavid S. Miller list_add(&p->entry, &ahash_algs); 14400a625fd2SDavid S. Miller err = crypto_register_ahash(ahash); 14410a625fd2SDavid S. Miller if (err) { 144238511108SDavid S. Miller pr_err("%s alg registration failed\n", base->cra_name); 14430a625fd2SDavid S. Miller list_del(&p->entry); 14440a625fd2SDavid S. Miller kfree(p); 144538511108SDavid S. Miller } else { 144638511108SDavid S. Miller pr_info("%s alg registered\n", base->cra_name); 14470a625fd2SDavid S. Miller } 1448dc4ccfd1SDavid S. Miller if (!err && p->hmac_type != AUTH_TYPE_RESERVED) 1449dc4ccfd1SDavid S. Miller err = __n2_register_one_hmac(p); 14500a625fd2SDavid S. Miller return err; 14510a625fd2SDavid S. Miller } 14520a625fd2SDavid S. Miller 145349cfe4dbSGreg Kroah-Hartman static int n2_register_algs(void) 14540a625fd2SDavid S. Miller { 14550a625fd2SDavid S. Miller int i, err = 0; 14560a625fd2SDavid S. Miller 14570a625fd2SDavid S. Miller mutex_lock(&spu_lock); 14580a625fd2SDavid S. Miller if (algs_registered++) 14590a625fd2SDavid S. Miller goto out; 14600a625fd2SDavid S. Miller 14610a625fd2SDavid S. Miller for (i = 0; i < NUM_HASH_TMPLS; i++) { 14620a625fd2SDavid S. Miller err = __n2_register_one_ahash(&hash_tmpls[i]); 14630a625fd2SDavid S. Miller if (err) { 14640a625fd2SDavid S. Miller __n2_unregister_algs(); 14650a625fd2SDavid S. Miller goto out; 14660a625fd2SDavid S. Miller } 14670a625fd2SDavid S. Miller } 14680a625fd2SDavid S. Miller for (i = 0; i < NUM_CIPHER_TMPLS; i++) { 146923a6564aSArd Biesheuvel err = __n2_register_one_skcipher(&skcipher_tmpls[i]); 14700a625fd2SDavid S. Miller if (err) { 14710a625fd2SDavid S. Miller __n2_unregister_algs(); 14720a625fd2SDavid S. Miller goto out; 14730a625fd2SDavid S. Miller } 14740a625fd2SDavid S. Miller } 14750a625fd2SDavid S. Miller 14760a625fd2SDavid S. Miller out: 14770a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 14780a625fd2SDavid S. Miller return err; 14790a625fd2SDavid S. Miller } 14800a625fd2SDavid S. Miller 148149cfe4dbSGreg Kroah-Hartman static void n2_unregister_algs(void) 14820a625fd2SDavid S. Miller { 14830a625fd2SDavid S. Miller mutex_lock(&spu_lock); 14840a625fd2SDavid S. Miller if (!--algs_registered) 14850a625fd2SDavid S. Miller __n2_unregister_algs(); 14860a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 14870a625fd2SDavid S. Miller } 14880a625fd2SDavid S. Miller 14890a625fd2SDavid S. Miller /* To map CWQ queues to interrupt sources, the hypervisor API provides 14900a625fd2SDavid S. Miller * a devino. This isn't very useful to us because all of the 14912dc11581SGrant Likely * interrupts listed in the device_node have been translated to 14920a625fd2SDavid S. Miller * Linux virtual IRQ cookie numbers. 14930a625fd2SDavid S. Miller * 14940a625fd2SDavid S. Miller * So we have to back-translate, going through the 'intr' and 'ino' 14950a625fd2SDavid S. Miller * property tables of the n2cp MDESC node, matching it with the OF 14960a625fd2SDavid S. Miller * 'interrupts' property entries, in order to to figure out which 14970a625fd2SDavid S. Miller * devino goes to which already-translated IRQ. 14980a625fd2SDavid S. Miller */ 14992dc11581SGrant Likely static int find_devino_index(struct platform_device *dev, struct spu_mdesc_info *ip, 15000a625fd2SDavid S. Miller unsigned long dev_ino) 15010a625fd2SDavid S. Miller { 15020a625fd2SDavid S. Miller const unsigned int *dev_intrs; 15030a625fd2SDavid S. Miller unsigned int intr; 15040a625fd2SDavid S. Miller int i; 15050a625fd2SDavid S. Miller 15060a625fd2SDavid S. Miller for (i = 0; i < ip->num_intrs; i++) { 15070a625fd2SDavid S. Miller if (ip->ino_table[i].ino == dev_ino) 15080a625fd2SDavid S. Miller break; 15090a625fd2SDavid S. Miller } 15100a625fd2SDavid S. Miller if (i == ip->num_intrs) 15110a625fd2SDavid S. Miller return -ENODEV; 15120a625fd2SDavid S. Miller 15130a625fd2SDavid S. Miller intr = ip->ino_table[i].intr; 15140a625fd2SDavid S. Miller 1515ff6c7341SDavid S. Miller dev_intrs = of_get_property(dev->dev.of_node, "interrupts", NULL); 15160a625fd2SDavid S. Miller if (!dev_intrs) 15170a625fd2SDavid S. Miller return -ENODEV; 15180a625fd2SDavid S. Miller 151919e4875fSGrant Likely for (i = 0; i < dev->archdata.num_irqs; i++) { 15200a625fd2SDavid S. Miller if (dev_intrs[i] == intr) 15210a625fd2SDavid S. Miller return i; 15220a625fd2SDavid S. Miller } 15230a625fd2SDavid S. Miller 15240a625fd2SDavid S. Miller return -ENODEV; 15250a625fd2SDavid S. Miller } 15260a625fd2SDavid S. Miller 15272dc11581SGrant Likely static int spu_map_ino(struct platform_device *dev, struct spu_mdesc_info *ip, 15280a625fd2SDavid S. Miller const char *irq_name, struct spu_queue *p, 15290a625fd2SDavid S. Miller irq_handler_t handler) 15300a625fd2SDavid S. Miller { 15310a625fd2SDavid S. Miller unsigned long herr; 15320a625fd2SDavid S. Miller int index; 15330a625fd2SDavid S. Miller 15340a625fd2SDavid S. Miller herr = sun4v_ncs_qhandle_to_devino(p->qhandle, &p->devino); 15350a625fd2SDavid S. Miller if (herr) 15360a625fd2SDavid S. Miller return -EINVAL; 15370a625fd2SDavid S. Miller 15380a625fd2SDavid S. Miller index = find_devino_index(dev, ip, p->devino); 15390a625fd2SDavid S. Miller if (index < 0) 15400a625fd2SDavid S. Miller return index; 15410a625fd2SDavid S. Miller 154219e4875fSGrant Likely p->irq = dev->archdata.irqs[index]; 15430a625fd2SDavid S. Miller 15440a625fd2SDavid S. Miller sprintf(p->irq_name, "%s-%d", irq_name, index); 15450a625fd2SDavid S. Miller 15469751bfd1STheodore Ts'o return request_irq(p->irq, handler, 0, p->irq_name, p); 15470a625fd2SDavid S. Miller } 15480a625fd2SDavid S. Miller 15490a625fd2SDavid S. Miller static struct kmem_cache *queue_cache[2]; 15500a625fd2SDavid S. Miller 15510a625fd2SDavid S. Miller static void *new_queue(unsigned long q_type) 15520a625fd2SDavid S. Miller { 15530a625fd2SDavid S. Miller return kmem_cache_zalloc(queue_cache[q_type - 1], GFP_KERNEL); 15540a625fd2SDavid S. Miller } 15550a625fd2SDavid S. Miller 15560a625fd2SDavid S. Miller static void free_queue(void *p, unsigned long q_type) 15570a625fd2SDavid S. Miller { 1558150f6d45SAmitoj Kaur Chawla kmem_cache_free(queue_cache[q_type - 1], p); 15590a625fd2SDavid S. Miller } 15600a625fd2SDavid S. Miller 15610a625fd2SDavid S. Miller static int queue_cache_init(void) 15620a625fd2SDavid S. Miller { 15630a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) 15640a625fd2SDavid S. Miller queue_cache[HV_NCS_QTYPE_MAU - 1] = 1565527b9525SDavid S. Miller kmem_cache_create("mau_queue", 15660a625fd2SDavid S. Miller (MAU_NUM_ENTRIES * 15670a625fd2SDavid S. Miller MAU_ENTRY_SIZE), 15680a625fd2SDavid S. Miller MAU_ENTRY_SIZE, 0, NULL); 15690a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) 15700a625fd2SDavid S. Miller return -ENOMEM; 15710a625fd2SDavid S. Miller 15720a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) 15730a625fd2SDavid S. Miller queue_cache[HV_NCS_QTYPE_CWQ - 1] = 15740a625fd2SDavid S. Miller kmem_cache_create("cwq_queue", 15750a625fd2SDavid S. Miller (CWQ_NUM_ENTRIES * 15760a625fd2SDavid S. Miller CWQ_ENTRY_SIZE), 15770a625fd2SDavid S. Miller CWQ_ENTRY_SIZE, 0, NULL); 15780a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) { 15790a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); 1580203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; 15810a625fd2SDavid S. Miller return -ENOMEM; 15820a625fd2SDavid S. Miller } 15830a625fd2SDavid S. Miller return 0; 15840a625fd2SDavid S. Miller } 15850a625fd2SDavid S. Miller 15860a625fd2SDavid S. Miller static void queue_cache_destroy(void) 15870a625fd2SDavid S. Miller { 15880a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); 15890a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]); 1590203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; 1591203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_CWQ - 1] = NULL; 15920a625fd2SDavid S. Miller } 15930a625fd2SDavid S. Miller 159473810a06SThomas Gleixner static long spu_queue_register_workfn(void *arg) 15950a625fd2SDavid S. Miller { 159673810a06SThomas Gleixner struct spu_qreg *qr = arg; 159773810a06SThomas Gleixner struct spu_queue *p = qr->queue; 159873810a06SThomas Gleixner unsigned long q_type = qr->type; 15990a625fd2SDavid S. Miller unsigned long hv_ret; 16000a625fd2SDavid S. Miller 16010a625fd2SDavid S. Miller hv_ret = sun4v_ncs_qconf(q_type, __pa(p->q), 16020a625fd2SDavid S. Miller CWQ_NUM_ENTRIES, &p->qhandle); 16030a625fd2SDavid S. Miller if (!hv_ret) 16040a625fd2SDavid S. Miller sun4v_ncs_sethead_marker(p->qhandle, 0); 16050a625fd2SDavid S. Miller 160673810a06SThomas Gleixner return hv_ret ? -EINVAL : 0; 160773810a06SThomas Gleixner } 16080a625fd2SDavid S. Miller 160973810a06SThomas Gleixner static int spu_queue_register(struct spu_queue *p, unsigned long q_type) 161073810a06SThomas Gleixner { 161173810a06SThomas Gleixner int cpu = cpumask_any_and(&p->sharing, cpu_online_mask); 161273810a06SThomas Gleixner struct spu_qreg qr = { .queue = p, .type = q_type }; 16130a625fd2SDavid S. Miller 161473810a06SThomas Gleixner return work_on_cpu_safe(cpu, spu_queue_register_workfn, &qr); 16150a625fd2SDavid S. Miller } 16160a625fd2SDavid S. Miller 16170a625fd2SDavid S. Miller static int spu_queue_setup(struct spu_queue *p) 16180a625fd2SDavid S. Miller { 16190a625fd2SDavid S. Miller int err; 16200a625fd2SDavid S. Miller 16210a625fd2SDavid S. Miller p->q = new_queue(p->q_type); 16220a625fd2SDavid S. Miller if (!p->q) 16230a625fd2SDavid S. Miller return -ENOMEM; 16240a625fd2SDavid S. Miller 16250a625fd2SDavid S. Miller err = spu_queue_register(p, p->q_type); 16260a625fd2SDavid S. Miller if (err) { 16270a625fd2SDavid S. Miller free_queue(p->q, p->q_type); 16280a625fd2SDavid S. Miller p->q = NULL; 16290a625fd2SDavid S. Miller } 16300a625fd2SDavid S. Miller 16310a625fd2SDavid S. Miller return err; 16320a625fd2SDavid S. Miller } 16330a625fd2SDavid S. Miller 16340a625fd2SDavid S. Miller static void spu_queue_destroy(struct spu_queue *p) 16350a625fd2SDavid S. Miller { 16360a625fd2SDavid S. Miller unsigned long hv_ret; 16370a625fd2SDavid S. Miller 16380a625fd2SDavid S. Miller if (!p->q) 16390a625fd2SDavid S. Miller return; 16400a625fd2SDavid S. Miller 16410a625fd2SDavid S. Miller hv_ret = sun4v_ncs_qconf(p->q_type, p->qhandle, 0, &p->qhandle); 16420a625fd2SDavid S. Miller 16430a625fd2SDavid S. Miller if (!hv_ret) 16440a625fd2SDavid S. Miller free_queue(p->q, p->q_type); 16450a625fd2SDavid S. Miller } 16460a625fd2SDavid S. Miller 16470a625fd2SDavid S. Miller static void spu_list_destroy(struct list_head *list) 16480a625fd2SDavid S. Miller { 16490a625fd2SDavid S. Miller struct spu_queue *p, *n; 16500a625fd2SDavid S. Miller 16510a625fd2SDavid S. Miller list_for_each_entry_safe(p, n, list, list) { 16520a625fd2SDavid S. Miller int i; 16530a625fd2SDavid S. Miller 16540a625fd2SDavid S. Miller for (i = 0; i < NR_CPUS; i++) { 16550a625fd2SDavid S. Miller if (cpu_to_cwq[i] == p) 16560a625fd2SDavid S. Miller cpu_to_cwq[i] = NULL; 16570a625fd2SDavid S. Miller } 16580a625fd2SDavid S. Miller 16590a625fd2SDavid S. Miller if (p->irq) { 16600a625fd2SDavid S. Miller free_irq(p->irq, p); 16610a625fd2SDavid S. Miller p->irq = 0; 16620a625fd2SDavid S. Miller } 16630a625fd2SDavid S. Miller spu_queue_destroy(p); 16640a625fd2SDavid S. Miller list_del(&p->list); 16650a625fd2SDavid S. Miller kfree(p); 16660a625fd2SDavid S. Miller } 16670a625fd2SDavid S. Miller } 16680a625fd2SDavid S. Miller 16690a625fd2SDavid S. Miller /* Walk the backward arcs of a CWQ 'exec-unit' node, 16700a625fd2SDavid S. Miller * gathering cpu membership information. 16710a625fd2SDavid S. Miller */ 16720a625fd2SDavid S. Miller static int spu_mdesc_walk_arcs(struct mdesc_handle *mdesc, 16732dc11581SGrant Likely struct platform_device *dev, 16740a625fd2SDavid S. Miller u64 node, struct spu_queue *p, 16750a625fd2SDavid S. Miller struct spu_queue **table) 16760a625fd2SDavid S. Miller { 16770a625fd2SDavid S. Miller u64 arc; 16780a625fd2SDavid S. Miller 16790a625fd2SDavid S. Miller mdesc_for_each_arc(arc, mdesc, node, MDESC_ARC_TYPE_BACK) { 16800a625fd2SDavid S. Miller u64 tgt = mdesc_arc_target(mdesc, arc); 16810a625fd2SDavid S. Miller const char *name = mdesc_node_name(mdesc, tgt); 16820a625fd2SDavid S. Miller const u64 *id; 16830a625fd2SDavid S. Miller 16840a625fd2SDavid S. Miller if (strcmp(name, "cpu")) 16850a625fd2SDavid S. Miller continue; 16860a625fd2SDavid S. Miller id = mdesc_get_property(mdesc, tgt, "id", NULL); 16870a625fd2SDavid S. Miller if (table[*id] != NULL) { 1688b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: SPU cpu slot already set.\n", 1689b2e870f2SRob Herring dev->dev.of_node); 16900a625fd2SDavid S. Miller return -EINVAL; 16910a625fd2SDavid S. Miller } 1692f9b531feSRusty Russell cpumask_set_cpu(*id, &p->sharing); 16930a625fd2SDavid S. Miller table[*id] = p; 16940a625fd2SDavid S. Miller } 16950a625fd2SDavid S. Miller return 0; 16960a625fd2SDavid S. Miller } 16970a625fd2SDavid S. Miller 16980a625fd2SDavid S. Miller /* Process an 'exec-unit' MDESC node of type 'cwq'. */ 16990a625fd2SDavid S. Miller static int handle_exec_unit(struct spu_mdesc_info *ip, struct list_head *list, 17002dc11581SGrant Likely struct platform_device *dev, struct mdesc_handle *mdesc, 17010a625fd2SDavid S. Miller u64 node, const char *iname, unsigned long q_type, 17020a625fd2SDavid S. Miller irq_handler_t handler, struct spu_queue **table) 17030a625fd2SDavid S. Miller { 17040a625fd2SDavid S. Miller struct spu_queue *p; 17050a625fd2SDavid S. Miller int err; 17060a625fd2SDavid S. Miller 17070a625fd2SDavid S. Miller p = kzalloc(sizeof(struct spu_queue), GFP_KERNEL); 17080a625fd2SDavid S. Miller if (!p) { 1709b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Could not allocate SPU queue.\n", 1710b2e870f2SRob Herring dev->dev.of_node); 17110a625fd2SDavid S. Miller return -ENOMEM; 17120a625fd2SDavid S. Miller } 17130a625fd2SDavid S. Miller 1714f9b531feSRusty Russell cpumask_clear(&p->sharing); 17150a625fd2SDavid S. Miller spin_lock_init(&p->lock); 17160a625fd2SDavid S. Miller p->q_type = q_type; 17170a625fd2SDavid S. Miller INIT_LIST_HEAD(&p->jobs); 17180a625fd2SDavid S. Miller list_add(&p->list, list); 17190a625fd2SDavid S. Miller 17200a625fd2SDavid S. Miller err = spu_mdesc_walk_arcs(mdesc, dev, node, p, table); 17210a625fd2SDavid S. Miller if (err) 17220a625fd2SDavid S. Miller return err; 17230a625fd2SDavid S. Miller 17240a625fd2SDavid S. Miller err = spu_queue_setup(p); 17250a625fd2SDavid S. Miller if (err) 17260a625fd2SDavid S. Miller return err; 17270a625fd2SDavid S. Miller 17280a625fd2SDavid S. Miller return spu_map_ino(dev, ip, iname, p, handler); 17290a625fd2SDavid S. Miller } 17300a625fd2SDavid S. Miller 17312dc11581SGrant Likely static int spu_mdesc_scan(struct mdesc_handle *mdesc, struct platform_device *dev, 17320a625fd2SDavid S. Miller struct spu_mdesc_info *ip, struct list_head *list, 17330a625fd2SDavid S. Miller const char *exec_name, unsigned long q_type, 17340a625fd2SDavid S. Miller irq_handler_t handler, struct spu_queue **table) 17350a625fd2SDavid S. Miller { 17360a625fd2SDavid S. Miller int err = 0; 17370a625fd2SDavid S. Miller u64 node; 17380a625fd2SDavid S. Miller 17390a625fd2SDavid S. Miller mdesc_for_each_node_by_name(mdesc, node, "exec-unit") { 17400a625fd2SDavid S. Miller const char *type; 17410a625fd2SDavid S. Miller 17420a625fd2SDavid S. Miller type = mdesc_get_property(mdesc, node, "type", NULL); 17430a625fd2SDavid S. Miller if (!type || strcmp(type, exec_name)) 17440a625fd2SDavid S. Miller continue; 17450a625fd2SDavid S. Miller 17460a625fd2SDavid S. Miller err = handle_exec_unit(ip, list, dev, mdesc, node, 17470a625fd2SDavid S. Miller exec_name, q_type, handler, table); 17480a625fd2SDavid S. Miller if (err) { 17490a625fd2SDavid S. Miller spu_list_destroy(list); 17500a625fd2SDavid S. Miller break; 17510a625fd2SDavid S. Miller } 17520a625fd2SDavid S. Miller } 17530a625fd2SDavid S. Miller 17540a625fd2SDavid S. Miller return err; 17550a625fd2SDavid S. Miller } 17560a625fd2SDavid S. Miller 175749cfe4dbSGreg Kroah-Hartman static int get_irq_props(struct mdesc_handle *mdesc, u64 node, 17580a625fd2SDavid S. Miller struct spu_mdesc_info *ip) 17590a625fd2SDavid S. Miller { 1760eb7caf35SDavid S. Miller const u64 *ino; 1761eb7caf35SDavid S. Miller int ino_len; 17620a625fd2SDavid S. Miller int i; 17630a625fd2SDavid S. Miller 17640a625fd2SDavid S. Miller ino = mdesc_get_property(mdesc, node, "ino", &ino_len); 1765eb7caf35SDavid S. Miller if (!ino) { 1766eb7caf35SDavid S. Miller printk("NO 'ino'\n"); 17670a625fd2SDavid S. Miller return -ENODEV; 1768eb7caf35SDavid S. Miller } 17690a625fd2SDavid S. Miller 1770eb7caf35SDavid S. Miller ip->num_intrs = ino_len / sizeof(u64); 17710a625fd2SDavid S. Miller ip->ino_table = kzalloc((sizeof(struct ino_blob) * 17720a625fd2SDavid S. Miller ip->num_intrs), 17730a625fd2SDavid S. Miller GFP_KERNEL); 17740a625fd2SDavid S. Miller if (!ip->ino_table) 17750a625fd2SDavid S. Miller return -ENOMEM; 17760a625fd2SDavid S. Miller 17770a625fd2SDavid S. Miller for (i = 0; i < ip->num_intrs; i++) { 17780a625fd2SDavid S. Miller struct ino_blob *b = &ip->ino_table[i]; 1779eb7caf35SDavid S. Miller b->intr = i + 1; 17800a625fd2SDavid S. Miller b->ino = ino[i]; 17810a625fd2SDavid S. Miller } 17820a625fd2SDavid S. Miller 17830a625fd2SDavid S. Miller return 0; 17840a625fd2SDavid S. Miller } 17850a625fd2SDavid S. Miller 178649cfe4dbSGreg Kroah-Hartman static int grab_mdesc_irq_props(struct mdesc_handle *mdesc, 17872dc11581SGrant Likely struct platform_device *dev, 17880a625fd2SDavid S. Miller struct spu_mdesc_info *ip, 17890a625fd2SDavid S. Miller const char *node_name) 17900a625fd2SDavid S. Miller { 17910a625fd2SDavid S. Miller const unsigned int *reg; 17920a625fd2SDavid S. Miller u64 node; 17930a625fd2SDavid S. Miller 1794ff6c7341SDavid S. Miller reg = of_get_property(dev->dev.of_node, "reg", NULL); 17950a625fd2SDavid S. Miller if (!reg) 17960a625fd2SDavid S. Miller return -ENODEV; 17970a625fd2SDavid S. Miller 17980a625fd2SDavid S. Miller mdesc_for_each_node_by_name(mdesc, node, "virtual-device") { 17990a625fd2SDavid S. Miller const char *name; 18000a625fd2SDavid S. Miller const u64 *chdl; 18010a625fd2SDavid S. Miller 18020a625fd2SDavid S. Miller name = mdesc_get_property(mdesc, node, "name", NULL); 18030a625fd2SDavid S. Miller if (!name || strcmp(name, node_name)) 18040a625fd2SDavid S. Miller continue; 18050a625fd2SDavid S. Miller chdl = mdesc_get_property(mdesc, node, "cfg-handle", NULL); 18060a625fd2SDavid S. Miller if (!chdl || (*chdl != *reg)) 18070a625fd2SDavid S. Miller continue; 18080a625fd2SDavid S. Miller ip->cfg_handle = *chdl; 18090a625fd2SDavid S. Miller return get_irq_props(mdesc, node, ip); 18100a625fd2SDavid S. Miller } 18110a625fd2SDavid S. Miller 18120a625fd2SDavid S. Miller return -ENODEV; 18130a625fd2SDavid S. Miller } 18140a625fd2SDavid S. Miller 18150a625fd2SDavid S. Miller static unsigned long n2_spu_hvapi_major; 18160a625fd2SDavid S. Miller static unsigned long n2_spu_hvapi_minor; 18170a625fd2SDavid S. Miller 181849cfe4dbSGreg Kroah-Hartman static int n2_spu_hvapi_register(void) 18190a625fd2SDavid S. Miller { 18200a625fd2SDavid S. Miller int err; 18210a625fd2SDavid S. Miller 18220a625fd2SDavid S. Miller n2_spu_hvapi_major = 2; 18230a625fd2SDavid S. Miller n2_spu_hvapi_minor = 0; 18240a625fd2SDavid S. Miller 18250a625fd2SDavid S. Miller err = sun4v_hvapi_register(HV_GRP_NCS, 18260a625fd2SDavid S. Miller n2_spu_hvapi_major, 18270a625fd2SDavid S. Miller &n2_spu_hvapi_minor); 18280a625fd2SDavid S. Miller 18290a625fd2SDavid S. Miller if (!err) 18300a625fd2SDavid S. Miller pr_info("Registered NCS HVAPI version %lu.%lu\n", 18310a625fd2SDavid S. Miller n2_spu_hvapi_major, 18320a625fd2SDavid S. Miller n2_spu_hvapi_minor); 18330a625fd2SDavid S. Miller 18340a625fd2SDavid S. Miller return err; 18350a625fd2SDavid S. Miller } 18360a625fd2SDavid S. Miller 18370a625fd2SDavid S. Miller static void n2_spu_hvapi_unregister(void) 18380a625fd2SDavid S. Miller { 18390a625fd2SDavid S. Miller sun4v_hvapi_unregister(HV_GRP_NCS); 18400a625fd2SDavid S. Miller } 18410a625fd2SDavid S. Miller 18420a625fd2SDavid S. Miller static int global_ref; 18430a625fd2SDavid S. Miller 184449cfe4dbSGreg Kroah-Hartman static int grab_global_resources(void) 18450a625fd2SDavid S. Miller { 18460a625fd2SDavid S. Miller int err = 0; 18470a625fd2SDavid S. Miller 18480a625fd2SDavid S. Miller mutex_lock(&spu_lock); 18490a625fd2SDavid S. Miller 18500a625fd2SDavid S. Miller if (global_ref++) 18510a625fd2SDavid S. Miller goto out; 18520a625fd2SDavid S. Miller 18530a625fd2SDavid S. Miller err = n2_spu_hvapi_register(); 18540a625fd2SDavid S. Miller if (err) 18550a625fd2SDavid S. Miller goto out; 18560a625fd2SDavid S. Miller 18570a625fd2SDavid S. Miller err = queue_cache_init(); 18580a625fd2SDavid S. Miller if (err) 18590a625fd2SDavid S. Miller goto out_hvapi_release; 18600a625fd2SDavid S. Miller 18610a625fd2SDavid S. Miller err = -ENOMEM; 18626396bb22SKees Cook cpu_to_cwq = kcalloc(NR_CPUS, sizeof(struct spu_queue *), 18630a625fd2SDavid S. Miller GFP_KERNEL); 18640a625fd2SDavid S. Miller if (!cpu_to_cwq) 18650a625fd2SDavid S. Miller goto out_queue_cache_destroy; 18660a625fd2SDavid S. Miller 18676396bb22SKees Cook cpu_to_mau = kcalloc(NR_CPUS, sizeof(struct spu_queue *), 18680a625fd2SDavid S. Miller GFP_KERNEL); 18690a625fd2SDavid S. Miller if (!cpu_to_mau) 18700a625fd2SDavid S. Miller goto out_free_cwq_table; 18710a625fd2SDavid S. Miller 18720a625fd2SDavid S. Miller err = 0; 18730a625fd2SDavid S. Miller 18740a625fd2SDavid S. Miller out: 18750a625fd2SDavid S. Miller if (err) 18760a625fd2SDavid S. Miller global_ref--; 18770a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 18780a625fd2SDavid S. Miller return err; 18790a625fd2SDavid S. Miller 18800a625fd2SDavid S. Miller out_free_cwq_table: 18810a625fd2SDavid S. Miller kfree(cpu_to_cwq); 18820a625fd2SDavid S. Miller cpu_to_cwq = NULL; 18830a625fd2SDavid S. Miller 18840a625fd2SDavid S. Miller out_queue_cache_destroy: 18850a625fd2SDavid S. Miller queue_cache_destroy(); 18860a625fd2SDavid S. Miller 18870a625fd2SDavid S. Miller out_hvapi_release: 18880a625fd2SDavid S. Miller n2_spu_hvapi_unregister(); 18890a625fd2SDavid S. Miller goto out; 18900a625fd2SDavid S. Miller } 18910a625fd2SDavid S. Miller 18920a625fd2SDavid S. Miller static void release_global_resources(void) 18930a625fd2SDavid S. Miller { 18940a625fd2SDavid S. Miller mutex_lock(&spu_lock); 18950a625fd2SDavid S. Miller if (!--global_ref) { 18960a625fd2SDavid S. Miller kfree(cpu_to_cwq); 18970a625fd2SDavid S. Miller cpu_to_cwq = NULL; 18980a625fd2SDavid S. Miller 18990a625fd2SDavid S. Miller kfree(cpu_to_mau); 19000a625fd2SDavid S. Miller cpu_to_mau = NULL; 19010a625fd2SDavid S. Miller 19020a625fd2SDavid S. Miller queue_cache_destroy(); 19030a625fd2SDavid S. Miller n2_spu_hvapi_unregister(); 19040a625fd2SDavid S. Miller } 19050a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 19060a625fd2SDavid S. Miller } 19070a625fd2SDavid S. Miller 190849cfe4dbSGreg Kroah-Hartman static struct n2_crypto *alloc_n2cp(void) 19090a625fd2SDavid S. Miller { 19100a625fd2SDavid S. Miller struct n2_crypto *np = kzalloc(sizeof(struct n2_crypto), GFP_KERNEL); 19110a625fd2SDavid S. Miller 19120a625fd2SDavid S. Miller if (np) 19130a625fd2SDavid S. Miller INIT_LIST_HEAD(&np->cwq_list); 19140a625fd2SDavid S. Miller 19150a625fd2SDavid S. Miller return np; 19160a625fd2SDavid S. Miller } 19170a625fd2SDavid S. Miller 19180a625fd2SDavid S. Miller static void free_n2cp(struct n2_crypto *np) 19190a625fd2SDavid S. Miller { 19200a625fd2SDavid S. Miller kfree(np->cwq_info.ino_table); 19210a625fd2SDavid S. Miller np->cwq_info.ino_table = NULL; 19220a625fd2SDavid S. Miller 19230a625fd2SDavid S. Miller kfree(np); 19240a625fd2SDavid S. Miller } 19250a625fd2SDavid S. Miller 192649cfe4dbSGreg Kroah-Hartman static void n2_spu_driver_version(void) 19270a625fd2SDavid S. Miller { 19280a625fd2SDavid S. Miller static int n2_spu_version_printed; 19290a625fd2SDavid S. Miller 19300a625fd2SDavid S. Miller if (n2_spu_version_printed++ == 0) 19310a625fd2SDavid S. Miller pr_info("%s", version); 19320a625fd2SDavid S. Miller } 19330a625fd2SDavid S. Miller 193449cfe4dbSGreg Kroah-Hartman static int n2_crypto_probe(struct platform_device *dev) 19350a625fd2SDavid S. Miller { 19360a625fd2SDavid S. Miller struct mdesc_handle *mdesc; 19370a625fd2SDavid S. Miller struct n2_crypto *np; 19380a625fd2SDavid S. Miller int err; 19390a625fd2SDavid S. Miller 19400a625fd2SDavid S. Miller n2_spu_driver_version(); 19410a625fd2SDavid S. Miller 1942b2e870f2SRob Herring pr_info("Found N2CP at %pOF\n", dev->dev.of_node); 19430a625fd2SDavid S. Miller 19440a625fd2SDavid S. Miller np = alloc_n2cp(); 19450a625fd2SDavid S. Miller if (!np) { 1946b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to allocate n2cp.\n", 1947b2e870f2SRob Herring dev->dev.of_node); 19480a625fd2SDavid S. Miller return -ENOMEM; 19490a625fd2SDavid S. Miller } 19500a625fd2SDavid S. Miller 19510a625fd2SDavid S. Miller err = grab_global_resources(); 19520a625fd2SDavid S. Miller if (err) { 1953b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", 1954b2e870f2SRob Herring dev->dev.of_node); 19550a625fd2SDavid S. Miller goto out_free_n2cp; 19560a625fd2SDavid S. Miller } 19570a625fd2SDavid S. Miller 19580a625fd2SDavid S. Miller mdesc = mdesc_grab(); 19590a625fd2SDavid S. Miller 19600a625fd2SDavid S. Miller if (!mdesc) { 1961b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", 1962b2e870f2SRob Herring dev->dev.of_node); 19630a625fd2SDavid S. Miller err = -ENODEV; 19640a625fd2SDavid S. Miller goto out_free_global; 19650a625fd2SDavid S. Miller } 19660a625fd2SDavid S. Miller err = grab_mdesc_irq_props(mdesc, dev, &np->cwq_info, "n2cp"); 19670a625fd2SDavid S. Miller if (err) { 1968b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", 1969b2e870f2SRob Herring dev->dev.of_node); 19700a625fd2SDavid S. Miller mdesc_release(mdesc); 19710a625fd2SDavid S. Miller goto out_free_global; 19720a625fd2SDavid S. Miller } 19730a625fd2SDavid S. Miller 19740a625fd2SDavid S. Miller err = spu_mdesc_scan(mdesc, dev, &np->cwq_info, &np->cwq_list, 19750a625fd2SDavid S. Miller "cwq", HV_NCS_QTYPE_CWQ, cwq_intr, 19760a625fd2SDavid S. Miller cpu_to_cwq); 19770a625fd2SDavid S. Miller mdesc_release(mdesc); 19780a625fd2SDavid S. Miller 19790a625fd2SDavid S. Miller if (err) { 1980b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: CWQ MDESC scan failed.\n", 1981b2e870f2SRob Herring dev->dev.of_node); 19820a625fd2SDavid S. Miller goto out_free_global; 19830a625fd2SDavid S. Miller } 19840a625fd2SDavid S. Miller 19850a625fd2SDavid S. Miller err = n2_register_algs(); 19860a625fd2SDavid S. Miller if (err) { 1987b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to register algorithms.\n", 1988b2e870f2SRob Herring dev->dev.of_node); 19890a625fd2SDavid S. Miller goto out_free_spu_list; 19900a625fd2SDavid S. Miller } 19910a625fd2SDavid S. Miller 19920a625fd2SDavid S. Miller dev_set_drvdata(&dev->dev, np); 19930a625fd2SDavid S. Miller 19940a625fd2SDavid S. Miller return 0; 19950a625fd2SDavid S. Miller 19960a625fd2SDavid S. Miller out_free_spu_list: 19970a625fd2SDavid S. Miller spu_list_destroy(&np->cwq_list); 19980a625fd2SDavid S. Miller 19990a625fd2SDavid S. Miller out_free_global: 20000a625fd2SDavid S. Miller release_global_resources(); 20010a625fd2SDavid S. Miller 20020a625fd2SDavid S. Miller out_free_n2cp: 20030a625fd2SDavid S. Miller free_n2cp(np); 20040a625fd2SDavid S. Miller 20050a625fd2SDavid S. Miller return err; 20060a625fd2SDavid S. Miller } 20070a625fd2SDavid S. Miller 200849cfe4dbSGreg Kroah-Hartman static int n2_crypto_remove(struct platform_device *dev) 20090a625fd2SDavid S. Miller { 20100a625fd2SDavid S. Miller struct n2_crypto *np = dev_get_drvdata(&dev->dev); 20110a625fd2SDavid S. Miller 20120a625fd2SDavid S. Miller n2_unregister_algs(); 20130a625fd2SDavid S. Miller 20140a625fd2SDavid S. Miller spu_list_destroy(&np->cwq_list); 20150a625fd2SDavid S. Miller 20160a625fd2SDavid S. Miller release_global_resources(); 20170a625fd2SDavid S. Miller 20180a625fd2SDavid S. Miller free_n2cp(np); 20190a625fd2SDavid S. Miller 20200a625fd2SDavid S. Miller return 0; 20210a625fd2SDavid S. Miller } 20220a625fd2SDavid S. Miller 202349cfe4dbSGreg Kroah-Hartman static struct n2_mau *alloc_ncp(void) 20240a625fd2SDavid S. Miller { 20250a625fd2SDavid S. Miller struct n2_mau *mp = kzalloc(sizeof(struct n2_mau), GFP_KERNEL); 20260a625fd2SDavid S. Miller 20270a625fd2SDavid S. Miller if (mp) 20280a625fd2SDavid S. Miller INIT_LIST_HEAD(&mp->mau_list); 20290a625fd2SDavid S. Miller 20300a625fd2SDavid S. Miller return mp; 20310a625fd2SDavid S. Miller } 20320a625fd2SDavid S. Miller 20330a625fd2SDavid S. Miller static void free_ncp(struct n2_mau *mp) 20340a625fd2SDavid S. Miller { 20350a625fd2SDavid S. Miller kfree(mp->mau_info.ino_table); 20360a625fd2SDavid S. Miller mp->mau_info.ino_table = NULL; 20370a625fd2SDavid S. Miller 20380a625fd2SDavid S. Miller kfree(mp); 20390a625fd2SDavid S. Miller } 20400a625fd2SDavid S. Miller 204149cfe4dbSGreg Kroah-Hartman static int n2_mau_probe(struct platform_device *dev) 20420a625fd2SDavid S. Miller { 20430a625fd2SDavid S. Miller struct mdesc_handle *mdesc; 20440a625fd2SDavid S. Miller struct n2_mau *mp; 20450a625fd2SDavid S. Miller int err; 20460a625fd2SDavid S. Miller 20470a625fd2SDavid S. Miller n2_spu_driver_version(); 20480a625fd2SDavid S. Miller 2049b2e870f2SRob Herring pr_info("Found NCP at %pOF\n", dev->dev.of_node); 20500a625fd2SDavid S. Miller 20510a625fd2SDavid S. Miller mp = alloc_ncp(); 20520a625fd2SDavid S. Miller if (!mp) { 2053b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to allocate ncp.\n", 2054b2e870f2SRob Herring dev->dev.of_node); 20550a625fd2SDavid S. Miller return -ENOMEM; 20560a625fd2SDavid S. Miller } 20570a625fd2SDavid S. Miller 20580a625fd2SDavid S. Miller err = grab_global_resources(); 20590a625fd2SDavid S. Miller if (err) { 2060b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", 2061b2e870f2SRob Herring dev->dev.of_node); 20620a625fd2SDavid S. Miller goto out_free_ncp; 20630a625fd2SDavid S. Miller } 20640a625fd2SDavid S. Miller 20650a625fd2SDavid S. Miller mdesc = mdesc_grab(); 20660a625fd2SDavid S. Miller 20670a625fd2SDavid S. Miller if (!mdesc) { 2068b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", 2069b2e870f2SRob Herring dev->dev.of_node); 20700a625fd2SDavid S. Miller err = -ENODEV; 20710a625fd2SDavid S. Miller goto out_free_global; 20720a625fd2SDavid S. Miller } 20730a625fd2SDavid S. Miller 20740a625fd2SDavid S. Miller err = grab_mdesc_irq_props(mdesc, dev, &mp->mau_info, "ncp"); 20750a625fd2SDavid S. Miller if (err) { 2076b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", 2077b2e870f2SRob Herring dev->dev.of_node); 20780a625fd2SDavid S. Miller mdesc_release(mdesc); 20790a625fd2SDavid S. Miller goto out_free_global; 20800a625fd2SDavid S. Miller } 20810a625fd2SDavid S. Miller 20820a625fd2SDavid S. Miller err = spu_mdesc_scan(mdesc, dev, &mp->mau_info, &mp->mau_list, 20830a625fd2SDavid S. Miller "mau", HV_NCS_QTYPE_MAU, mau_intr, 20840a625fd2SDavid S. Miller cpu_to_mau); 20850a625fd2SDavid S. Miller mdesc_release(mdesc); 20860a625fd2SDavid S. Miller 20870a625fd2SDavid S. Miller if (err) { 2088b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: MAU MDESC scan failed.\n", 2089b2e870f2SRob Herring dev->dev.of_node); 20900a625fd2SDavid S. Miller goto out_free_global; 20910a625fd2SDavid S. Miller } 20920a625fd2SDavid S. Miller 20930a625fd2SDavid S. Miller dev_set_drvdata(&dev->dev, mp); 20940a625fd2SDavid S. Miller 20950a625fd2SDavid S. Miller return 0; 20960a625fd2SDavid S. Miller 20970a625fd2SDavid S. Miller out_free_global: 20980a625fd2SDavid S. Miller release_global_resources(); 20990a625fd2SDavid S. Miller 21000a625fd2SDavid S. Miller out_free_ncp: 21010a625fd2SDavid S. Miller free_ncp(mp); 21020a625fd2SDavid S. Miller 21030a625fd2SDavid S. Miller return err; 21040a625fd2SDavid S. Miller } 21050a625fd2SDavid S. Miller 210649cfe4dbSGreg Kroah-Hartman static int n2_mau_remove(struct platform_device *dev) 21070a625fd2SDavid S. Miller { 21080a625fd2SDavid S. Miller struct n2_mau *mp = dev_get_drvdata(&dev->dev); 21090a625fd2SDavid S. Miller 21100a625fd2SDavid S. Miller spu_list_destroy(&mp->mau_list); 21110a625fd2SDavid S. Miller 21120a625fd2SDavid S. Miller release_global_resources(); 21130a625fd2SDavid S. Miller 21140a625fd2SDavid S. Miller free_ncp(mp); 21150a625fd2SDavid S. Miller 21160a625fd2SDavid S. Miller return 0; 21170a625fd2SDavid S. Miller } 21180a625fd2SDavid S. Miller 21194914b90bSArvind Yadav static const struct of_device_id n2_crypto_match[] = { 21200a625fd2SDavid S. Miller { 21210a625fd2SDavid S. Miller .name = "n2cp", 21220a625fd2SDavid S. Miller .compatible = "SUNW,n2-cwq", 21230a625fd2SDavid S. Miller }, 21240a625fd2SDavid S. Miller { 21250a625fd2SDavid S. Miller .name = "n2cp", 21260a625fd2SDavid S. Miller .compatible = "SUNW,vf-cwq", 21270a625fd2SDavid S. Miller }, 2128eb7caf35SDavid S. Miller { 2129eb7caf35SDavid S. Miller .name = "n2cp", 2130eb7caf35SDavid S. Miller .compatible = "SUNW,kt-cwq", 2131eb7caf35SDavid S. Miller }, 21320a625fd2SDavid S. Miller {}, 21330a625fd2SDavid S. Miller }; 21340a625fd2SDavid S. Miller 21350a625fd2SDavid S. Miller MODULE_DEVICE_TABLE(of, n2_crypto_match); 21360a625fd2SDavid S. Miller 21374ebb24f7SGrant Likely static struct platform_driver n2_crypto_driver = { 2138ff6c7341SDavid S. Miller .driver = { 21390a625fd2SDavid S. Miller .name = "n2cp", 2140ff6c7341SDavid S. Miller .of_match_table = n2_crypto_match, 2141ff6c7341SDavid S. Miller }, 21420a625fd2SDavid S. Miller .probe = n2_crypto_probe, 214349cfe4dbSGreg Kroah-Hartman .remove = n2_crypto_remove, 21440a625fd2SDavid S. Miller }; 21450a625fd2SDavid S. Miller 21464914b90bSArvind Yadav static const struct of_device_id n2_mau_match[] = { 21470a625fd2SDavid S. Miller { 21480a625fd2SDavid S. Miller .name = "ncp", 21490a625fd2SDavid S. Miller .compatible = "SUNW,n2-mau", 21500a625fd2SDavid S. Miller }, 21510a625fd2SDavid S. Miller { 21520a625fd2SDavid S. Miller .name = "ncp", 21530a625fd2SDavid S. Miller .compatible = "SUNW,vf-mau", 21540a625fd2SDavid S. Miller }, 2155eb7caf35SDavid S. Miller { 2156eb7caf35SDavid S. Miller .name = "ncp", 2157eb7caf35SDavid S. Miller .compatible = "SUNW,kt-mau", 2158eb7caf35SDavid S. Miller }, 21590a625fd2SDavid S. Miller {}, 21600a625fd2SDavid S. Miller }; 21610a625fd2SDavid S. Miller 21620a625fd2SDavid S. Miller MODULE_DEVICE_TABLE(of, n2_mau_match); 21630a625fd2SDavid S. Miller 21644ebb24f7SGrant Likely static struct platform_driver n2_mau_driver = { 2165ff6c7341SDavid S. Miller .driver = { 21660a625fd2SDavid S. Miller .name = "ncp", 2167ff6c7341SDavid S. Miller .of_match_table = n2_mau_match, 2168ff6c7341SDavid S. Miller }, 21690a625fd2SDavid S. Miller .probe = n2_mau_probe, 217049cfe4dbSGreg Kroah-Hartman .remove = n2_mau_remove, 21710a625fd2SDavid S. Miller }; 21720a625fd2SDavid S. Miller 2173a103a75aSThierry Reding static struct platform_driver * const drivers[] = { 2174a103a75aSThierry Reding &n2_crypto_driver, 2175a103a75aSThierry Reding &n2_mau_driver, 2176a103a75aSThierry Reding }; 2177a103a75aSThierry Reding 21780a625fd2SDavid S. Miller static int __init n2_init(void) 21790a625fd2SDavid S. Miller { 2180a103a75aSThierry Reding return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); 21810a625fd2SDavid S. Miller } 21820a625fd2SDavid S. Miller 21830a625fd2SDavid S. Miller static void __exit n2_exit(void) 21840a625fd2SDavid S. Miller { 2185a103a75aSThierry Reding platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); 21860a625fd2SDavid S. Miller } 21870a625fd2SDavid S. Miller 21880a625fd2SDavid S. Miller module_init(n2_init); 21890a625fd2SDavid S. Miller module_exit(n2_exit); 2190