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> 12*ee174e26SRob Herring #include <linux/of_address.h> 130a625fd2SDavid S. Miller #include <linux/of_device.h> 140a625fd2SDavid S. Miller #include <linux/cpumask.h> 150a625fd2SDavid S. Miller #include <linux/slab.h> 160a625fd2SDavid S. Miller #include <linux/interrupt.h> 170a625fd2SDavid S. Miller #include <linux/crypto.h> 180a625fd2SDavid S. Miller #include <crypto/md5.h> 19a24d22b2SEric Biggers #include <crypto/sha1.h> 20a24d22b2SEric Biggers #include <crypto/sha2.h> 210a625fd2SDavid S. Miller #include <crypto/aes.h> 22d4b90dbcSArd Biesheuvel #include <crypto/internal/des.h> 230a625fd2SDavid S. Miller #include <linux/mutex.h> 240a625fd2SDavid S. Miller #include <linux/delay.h> 250a625fd2SDavid S. Miller #include <linux/sched.h> 260a625fd2SDavid S. Miller 270a625fd2SDavid S. Miller #include <crypto/internal/hash.h> 2823a6564aSArd Biesheuvel #include <crypto/internal/skcipher.h> 290a625fd2SDavid S. Miller #include <crypto/scatterwalk.h> 300a625fd2SDavid S. Miller #include <crypto/algapi.h> 310a625fd2SDavid S. Miller 320a625fd2SDavid S. Miller #include <asm/hypervisor.h> 330a625fd2SDavid S. Miller #include <asm/mdesc.h> 340a625fd2SDavid S. Miller 350a625fd2SDavid S. Miller #include "n2_core.h" 360a625fd2SDavid S. Miller 370a625fd2SDavid S. Miller #define DRV_MODULE_NAME "n2_crypto" 38eb7caf35SDavid S. Miller #define DRV_MODULE_VERSION "0.2" 39eb7caf35SDavid S. Miller #define DRV_MODULE_RELDATE "July 28, 2011" 400a625fd2SDavid S. Miller 4150826874SLABBE Corentin static const char version[] = 420a625fd2SDavid S. Miller DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; 430a625fd2SDavid S. Miller 440a625fd2SDavid S. Miller MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); 450a625fd2SDavid S. Miller MODULE_DESCRIPTION("Niagara2 Crypto driver"); 460a625fd2SDavid S. Miller MODULE_LICENSE("GPL"); 470a625fd2SDavid S. Miller MODULE_VERSION(DRV_MODULE_VERSION); 480a625fd2SDavid S. Miller 4910803624SDavid S. Miller #define N2_CRA_PRIORITY 200 500a625fd2SDavid S. Miller 510a625fd2SDavid S. Miller static DEFINE_MUTEX(spu_lock); 520a625fd2SDavid S. Miller 530a625fd2SDavid S. Miller struct spu_queue { 540a625fd2SDavid S. Miller cpumask_t sharing; 550a625fd2SDavid S. Miller unsigned long qhandle; 560a625fd2SDavid S. Miller 570a625fd2SDavid S. Miller spinlock_t lock; 580a625fd2SDavid S. Miller u8 q_type; 590a625fd2SDavid S. Miller void *q; 600a625fd2SDavid S. Miller unsigned long head; 610a625fd2SDavid S. Miller unsigned long tail; 620a625fd2SDavid S. Miller struct list_head jobs; 630a625fd2SDavid S. Miller 640a625fd2SDavid S. Miller unsigned long devino; 650a625fd2SDavid S. Miller 660a625fd2SDavid S. Miller char irq_name[32]; 670a625fd2SDavid S. Miller unsigned int irq; 680a625fd2SDavid S. Miller 690a625fd2SDavid S. Miller struct list_head list; 700a625fd2SDavid S. Miller }; 710a625fd2SDavid S. Miller 7273810a06SThomas Gleixner struct spu_qreg { 7373810a06SThomas Gleixner struct spu_queue *queue; 7473810a06SThomas Gleixner unsigned long type; 7573810a06SThomas Gleixner }; 7673810a06SThomas Gleixner 770a625fd2SDavid S. Miller static struct spu_queue **cpu_to_cwq; 780a625fd2SDavid S. Miller static struct spu_queue **cpu_to_mau; 790a625fd2SDavid S. Miller 800a625fd2SDavid S. Miller static unsigned long spu_next_offset(struct spu_queue *q, unsigned long off) 810a625fd2SDavid S. Miller { 820a625fd2SDavid S. Miller if (q->q_type == HV_NCS_QTYPE_MAU) { 830a625fd2SDavid S. Miller off += MAU_ENTRY_SIZE; 840a625fd2SDavid S. Miller if (off == (MAU_ENTRY_SIZE * MAU_NUM_ENTRIES)) 850a625fd2SDavid S. Miller off = 0; 860a625fd2SDavid S. Miller } else { 870a625fd2SDavid S. Miller off += CWQ_ENTRY_SIZE; 880a625fd2SDavid S. Miller if (off == (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES)) 890a625fd2SDavid S. Miller off = 0; 900a625fd2SDavid S. Miller } 910a625fd2SDavid S. Miller return off; 920a625fd2SDavid S. Miller } 930a625fd2SDavid S. Miller 940a625fd2SDavid S. Miller struct n2_request_common { 950a625fd2SDavid S. Miller struct list_head entry; 960a625fd2SDavid S. Miller unsigned int offset; 970a625fd2SDavid S. Miller }; 980a625fd2SDavid S. Miller #define OFFSET_NOT_RUNNING (~(unsigned int)0) 990a625fd2SDavid S. Miller 1000a625fd2SDavid S. Miller /* An async job request records the final tail value it used in 1010a625fd2SDavid S. Miller * n2_request_common->offset, test to see if that offset is in 1020a625fd2SDavid S. Miller * the range old_head, new_head, inclusive. 1030a625fd2SDavid S. Miller */ 1040a625fd2SDavid S. Miller static inline bool job_finished(struct spu_queue *q, unsigned int offset, 1050a625fd2SDavid S. Miller unsigned long old_head, unsigned long new_head) 1060a625fd2SDavid S. Miller { 1070a625fd2SDavid S. Miller if (old_head <= new_head) { 1080a625fd2SDavid S. Miller if (offset > old_head && offset <= new_head) 1090a625fd2SDavid S. Miller return true; 1100a625fd2SDavid S. Miller } else { 1110a625fd2SDavid S. Miller if (offset > old_head || offset <= new_head) 1120a625fd2SDavid S. Miller return true; 1130a625fd2SDavid S. Miller } 1140a625fd2SDavid S. Miller return false; 1150a625fd2SDavid S. Miller } 1160a625fd2SDavid S. Miller 1170a625fd2SDavid S. Miller /* When the HEAD marker is unequal to the actual HEAD, we get 1180a625fd2SDavid S. Miller * a virtual device INO interrupt. We should process the 1190a625fd2SDavid S. Miller * completed CWQ entries and adjust the HEAD marker to clear 1200a625fd2SDavid S. Miller * the IRQ. 1210a625fd2SDavid S. Miller */ 1220a625fd2SDavid S. Miller static irqreturn_t cwq_intr(int irq, void *dev_id) 1230a625fd2SDavid S. Miller { 1240a625fd2SDavid S. Miller unsigned long off, new_head, hv_ret; 1250a625fd2SDavid S. Miller struct spu_queue *q = dev_id; 1260a625fd2SDavid S. Miller 1270a625fd2SDavid S. Miller pr_err("CPU[%d]: Got CWQ interrupt for qhdl[%lx]\n", 1280a625fd2SDavid S. Miller smp_processor_id(), q->qhandle); 1290a625fd2SDavid S. Miller 1300a625fd2SDavid S. Miller spin_lock(&q->lock); 1310a625fd2SDavid S. Miller 1320a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(q->qhandle, &new_head); 1330a625fd2SDavid S. Miller 1340a625fd2SDavid S. Miller pr_err("CPU[%d]: CWQ gethead[%lx] hv_ret[%lu]\n", 1350a625fd2SDavid S. Miller smp_processor_id(), new_head, hv_ret); 1360a625fd2SDavid S. Miller 1370a625fd2SDavid S. Miller for (off = q->head; off != new_head; off = spu_next_offset(q, off)) { 1380a625fd2SDavid S. Miller /* XXX ... XXX */ 1390a625fd2SDavid S. Miller } 1400a625fd2SDavid S. Miller 1410a625fd2SDavid S. Miller hv_ret = sun4v_ncs_sethead_marker(q->qhandle, new_head); 1420a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 1430a625fd2SDavid S. Miller q->head = new_head; 1440a625fd2SDavid S. Miller 1450a625fd2SDavid S. Miller spin_unlock(&q->lock); 1460a625fd2SDavid S. Miller 1470a625fd2SDavid S. Miller return IRQ_HANDLED; 1480a625fd2SDavid S. Miller } 1490a625fd2SDavid S. Miller 1500a625fd2SDavid S. Miller static irqreturn_t mau_intr(int irq, void *dev_id) 1510a625fd2SDavid S. Miller { 1520a625fd2SDavid S. Miller struct spu_queue *q = dev_id; 1530a625fd2SDavid S. Miller unsigned long head, hv_ret; 1540a625fd2SDavid S. Miller 1550a625fd2SDavid S. Miller spin_lock(&q->lock); 1560a625fd2SDavid S. Miller 1570a625fd2SDavid S. Miller pr_err("CPU[%d]: Got MAU interrupt for qhdl[%lx]\n", 1580a625fd2SDavid S. Miller smp_processor_id(), q->qhandle); 1590a625fd2SDavid S. Miller 1600a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(q->qhandle, &head); 1610a625fd2SDavid S. Miller 1620a625fd2SDavid S. Miller pr_err("CPU[%d]: MAU gethead[%lx] hv_ret[%lu]\n", 1630a625fd2SDavid S. Miller smp_processor_id(), head, hv_ret); 1640a625fd2SDavid S. Miller 1650a625fd2SDavid S. Miller sun4v_ncs_sethead_marker(q->qhandle, head); 1660a625fd2SDavid S. Miller 1670a625fd2SDavid S. Miller spin_unlock(&q->lock); 1680a625fd2SDavid S. Miller 1690a625fd2SDavid S. Miller return IRQ_HANDLED; 1700a625fd2SDavid S. Miller } 1710a625fd2SDavid S. Miller 1720a625fd2SDavid S. Miller static void *spu_queue_next(struct spu_queue *q, void *cur) 1730a625fd2SDavid S. Miller { 1740a625fd2SDavid S. Miller return q->q + spu_next_offset(q, cur - q->q); 1750a625fd2SDavid S. Miller } 1760a625fd2SDavid S. Miller 1770a625fd2SDavid S. Miller static int spu_queue_num_free(struct spu_queue *q) 1780a625fd2SDavid S. Miller { 1790a625fd2SDavid S. Miller unsigned long head = q->head; 1800a625fd2SDavid S. Miller unsigned long tail = q->tail; 1810a625fd2SDavid S. Miller unsigned long end = (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES); 1820a625fd2SDavid S. Miller unsigned long diff; 1830a625fd2SDavid S. Miller 1840a625fd2SDavid S. Miller if (head > tail) 1850a625fd2SDavid S. Miller diff = head - tail; 1860a625fd2SDavid S. Miller else 1870a625fd2SDavid S. Miller diff = (end - tail) + head; 1880a625fd2SDavid S. Miller 1890a625fd2SDavid S. Miller return (diff / CWQ_ENTRY_SIZE) - 1; 1900a625fd2SDavid S. Miller } 1910a625fd2SDavid S. Miller 1920a625fd2SDavid S. Miller static void *spu_queue_alloc(struct spu_queue *q, int num_entries) 1930a625fd2SDavid S. Miller { 1940a625fd2SDavid S. Miller int avail = spu_queue_num_free(q); 1950a625fd2SDavid S. Miller 1960a625fd2SDavid S. Miller if (avail >= num_entries) 1970a625fd2SDavid S. Miller return q->q + q->tail; 1980a625fd2SDavid S. Miller 1990a625fd2SDavid S. Miller return NULL; 2000a625fd2SDavid S. Miller } 2010a625fd2SDavid S. Miller 2020a625fd2SDavid S. Miller static unsigned long spu_queue_submit(struct spu_queue *q, void *last) 2030a625fd2SDavid S. Miller { 2040a625fd2SDavid S. Miller unsigned long hv_ret, new_tail; 2050a625fd2SDavid S. Miller 2060a625fd2SDavid S. Miller new_tail = spu_next_offset(q, last - q->q); 2070a625fd2SDavid S. Miller 2080a625fd2SDavid S. Miller hv_ret = sun4v_ncs_settail(q->qhandle, new_tail); 2090a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 2100a625fd2SDavid S. Miller q->tail = new_tail; 2110a625fd2SDavid S. Miller return hv_ret; 2120a625fd2SDavid S. Miller } 2130a625fd2SDavid S. Miller 2140a625fd2SDavid S. Miller static u64 control_word_base(unsigned int len, unsigned int hmac_key_len, 2150a625fd2SDavid S. Miller int enc_type, int auth_type, 2160a625fd2SDavid S. Miller unsigned int hash_len, 2170a625fd2SDavid S. Miller bool sfas, bool sob, bool eob, bool encrypt, 2180a625fd2SDavid S. Miller int opcode) 2190a625fd2SDavid S. Miller { 2200a625fd2SDavid S. Miller u64 word = (len - 1) & CONTROL_LEN; 2210a625fd2SDavid S. Miller 2220a625fd2SDavid S. Miller word |= ((u64) opcode << CONTROL_OPCODE_SHIFT); 2230a625fd2SDavid S. Miller word |= ((u64) enc_type << CONTROL_ENC_TYPE_SHIFT); 2240a625fd2SDavid S. Miller word |= ((u64) auth_type << CONTROL_AUTH_TYPE_SHIFT); 2250a625fd2SDavid S. Miller if (sfas) 2260a625fd2SDavid S. Miller word |= CONTROL_STORE_FINAL_AUTH_STATE; 2270a625fd2SDavid S. Miller if (sob) 2280a625fd2SDavid S. Miller word |= CONTROL_START_OF_BLOCK; 2290a625fd2SDavid S. Miller if (eob) 2300a625fd2SDavid S. Miller word |= CONTROL_END_OF_BLOCK; 2310a625fd2SDavid S. Miller if (encrypt) 2320a625fd2SDavid S. Miller word |= CONTROL_ENCRYPT; 2330a625fd2SDavid S. Miller if (hmac_key_len) 2340a625fd2SDavid S. Miller word |= ((u64) (hmac_key_len - 1)) << CONTROL_HMAC_KEY_LEN_SHIFT; 2350a625fd2SDavid S. Miller if (hash_len) 2360a625fd2SDavid S. Miller word |= ((u64) (hash_len - 1)) << CONTROL_HASH_LEN_SHIFT; 2370a625fd2SDavid S. Miller 2380a625fd2SDavid S. Miller return word; 2390a625fd2SDavid S. Miller } 2400a625fd2SDavid S. Miller 2410a625fd2SDavid S. Miller #if 0 2420a625fd2SDavid S. Miller static inline bool n2_should_run_async(struct spu_queue *qp, int this_len) 2430a625fd2SDavid S. Miller { 2440a625fd2SDavid S. Miller if (this_len >= 64 || 2450a625fd2SDavid S. Miller qp->head != qp->tail) 2460a625fd2SDavid S. Miller return true; 2470a625fd2SDavid S. Miller return false; 2480a625fd2SDavid S. Miller } 2490a625fd2SDavid S. Miller #endif 2500a625fd2SDavid S. Miller 2513a2c0346SDavid S. Miller struct n2_ahash_alg { 2523a2c0346SDavid S. Miller struct list_head entry; 2538054b800SLABBE Corentin const u8 *hash_zero; 2546d77282fSHerbert Xu const u8 *hash_init; 2553a2c0346SDavid S. Miller u8 hw_op_hashsz; 2563a2c0346SDavid S. Miller u8 digest_size; 2573a2c0346SDavid S. Miller u8 auth_type; 258dc4ccfd1SDavid S. Miller u8 hmac_type; 2593a2c0346SDavid S. Miller struct ahash_alg alg; 2603a2c0346SDavid S. Miller }; 2613a2c0346SDavid S. Miller 2623a2c0346SDavid S. Miller static inline struct n2_ahash_alg *n2_ahash_alg(struct crypto_tfm *tfm) 2633a2c0346SDavid S. Miller { 2643a2c0346SDavid S. Miller struct crypto_alg *alg = tfm->__crt_alg; 2653a2c0346SDavid S. Miller struct ahash_alg *ahash_alg; 2663a2c0346SDavid S. Miller 2673a2c0346SDavid S. Miller ahash_alg = container_of(alg, struct ahash_alg, halg.base); 2683a2c0346SDavid S. Miller 2693a2c0346SDavid S. Miller return container_of(ahash_alg, struct n2_ahash_alg, alg); 2703a2c0346SDavid S. Miller } 2713a2c0346SDavid S. Miller 272dc4ccfd1SDavid S. Miller struct n2_hmac_alg { 273dc4ccfd1SDavid S. Miller const char *child_alg; 274dc4ccfd1SDavid S. Miller struct n2_ahash_alg derived; 275dc4ccfd1SDavid S. Miller }; 276dc4ccfd1SDavid S. Miller 277dc4ccfd1SDavid S. Miller static inline struct n2_hmac_alg *n2_hmac_alg(struct crypto_tfm *tfm) 278dc4ccfd1SDavid S. Miller { 279dc4ccfd1SDavid S. Miller struct crypto_alg *alg = tfm->__crt_alg; 280dc4ccfd1SDavid S. Miller struct ahash_alg *ahash_alg; 281dc4ccfd1SDavid S. Miller 282dc4ccfd1SDavid S. Miller ahash_alg = container_of(alg, struct ahash_alg, halg.base); 283dc4ccfd1SDavid S. Miller 284dc4ccfd1SDavid S. Miller return container_of(ahash_alg, struct n2_hmac_alg, derived.alg); 285dc4ccfd1SDavid S. Miller } 286dc4ccfd1SDavid S. Miller 2870a625fd2SDavid S. Miller struct n2_hash_ctx { 288c9aa55e5SDavid S. Miller struct crypto_ahash *fallback_tfm; 289c9aa55e5SDavid S. Miller }; 2900a625fd2SDavid S. Miller 291dc4ccfd1SDavid S. Miller #define N2_HASH_KEY_MAX 32 /* HW limit for all HMAC requests */ 292dc4ccfd1SDavid S. Miller 293dc4ccfd1SDavid S. Miller struct n2_hmac_ctx { 294dc4ccfd1SDavid S. Miller struct n2_hash_ctx base; 295dc4ccfd1SDavid S. Miller 296dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash; 297dc4ccfd1SDavid S. Miller 298dc4ccfd1SDavid S. Miller int hash_key_len; 299dc4ccfd1SDavid S. Miller unsigned char hash_key[N2_HASH_KEY_MAX]; 300dc4ccfd1SDavid S. Miller }; 301dc4ccfd1SDavid S. Miller 302c9aa55e5SDavid S. Miller struct n2_hash_req_ctx { 3030a625fd2SDavid S. Miller union { 3040a625fd2SDavid S. Miller struct md5_state md5; 3050a625fd2SDavid S. Miller struct sha1_state sha1; 3060a625fd2SDavid S. Miller struct sha256_state sha256; 3070a625fd2SDavid S. Miller } u; 3080a625fd2SDavid S. Miller 309c9aa55e5SDavid S. Miller struct ahash_request fallback_req; 3100a625fd2SDavid S. Miller }; 3110a625fd2SDavid S. Miller 3120a625fd2SDavid S. Miller static int n2_hash_async_init(struct ahash_request *req) 3130a625fd2SDavid S. Miller { 314c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3150a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3160a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3170a625fd2SDavid S. Miller 318c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 319c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 3200a625fd2SDavid S. Miller 321c9aa55e5SDavid S. Miller return crypto_ahash_init(&rctx->fallback_req); 3220a625fd2SDavid S. Miller } 3230a625fd2SDavid S. Miller 3240a625fd2SDavid S. Miller static int n2_hash_async_update(struct ahash_request *req) 3250a625fd2SDavid S. Miller { 326c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3270a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3280a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3290a625fd2SDavid S. Miller 330c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 331c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 332c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 333c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 3340a625fd2SDavid S. Miller 335c9aa55e5SDavid S. Miller return crypto_ahash_update(&rctx->fallback_req); 3360a625fd2SDavid S. Miller } 3370a625fd2SDavid S. Miller 3380a625fd2SDavid S. Miller static int n2_hash_async_final(struct ahash_request *req) 3390a625fd2SDavid S. Miller { 340c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3410a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3420a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3430a625fd2SDavid S. Miller 344c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 345c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 346c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 3470a625fd2SDavid S. Miller 348c9aa55e5SDavid S. Miller return crypto_ahash_final(&rctx->fallback_req); 3490a625fd2SDavid S. Miller } 3500a625fd2SDavid S. Miller 3510a625fd2SDavid S. Miller static int n2_hash_async_finup(struct ahash_request *req) 3520a625fd2SDavid S. Miller { 353c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 3540a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 3550a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 3560a625fd2SDavid S. Miller 357c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 358c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 359c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 360c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 361c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 3620a625fd2SDavid S. Miller 363c9aa55e5SDavid S. Miller return crypto_ahash_finup(&rctx->fallback_req); 3640a625fd2SDavid S. Miller } 3650a625fd2SDavid S. Miller 366378fe6fbSKamil Konieczny static int n2_hash_async_noimport(struct ahash_request *req, const void *in) 367378fe6fbSKamil Konieczny { 368378fe6fbSKamil Konieczny return -ENOSYS; 369378fe6fbSKamil Konieczny } 370378fe6fbSKamil Konieczny 371378fe6fbSKamil Konieczny static int n2_hash_async_noexport(struct ahash_request *req, void *out) 372378fe6fbSKamil Konieczny { 373378fe6fbSKamil Konieczny return -ENOSYS; 374378fe6fbSKamil Konieczny } 375378fe6fbSKamil Konieczny 3760a625fd2SDavid S. Miller static int n2_hash_cra_init(struct crypto_tfm *tfm) 3770a625fd2SDavid S. Miller { 3785837af01SMarek Vasut const char *fallback_driver_name = crypto_tfm_alg_name(tfm); 3790a625fd2SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 3800a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); 3810a625fd2SDavid S. Miller struct crypto_ahash *fallback_tfm; 3820a625fd2SDavid S. Miller int err; 3830a625fd2SDavid S. Miller 3840a625fd2SDavid S. Miller fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, 3850a625fd2SDavid S. Miller CRYPTO_ALG_NEED_FALLBACK); 3860a625fd2SDavid S. Miller if (IS_ERR(fallback_tfm)) { 387cacc594bSKefeng Wang pr_warn("Fallback driver '%s' could not be loaded!\n", 3880a625fd2SDavid S. Miller fallback_driver_name); 3890a625fd2SDavid S. Miller err = PTR_ERR(fallback_tfm); 3900a625fd2SDavid S. Miller goto out; 3910a625fd2SDavid S. Miller } 3920a625fd2SDavid S. Miller 393c9aa55e5SDavid S. Miller crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + 394c9aa55e5SDavid S. Miller crypto_ahash_reqsize(fallback_tfm))); 395c9aa55e5SDavid S. Miller 396c9aa55e5SDavid S. Miller ctx->fallback_tfm = fallback_tfm; 3970a625fd2SDavid S. Miller return 0; 3980a625fd2SDavid S. Miller 3990a625fd2SDavid S. Miller out: 4000a625fd2SDavid S. Miller return err; 4010a625fd2SDavid S. Miller } 4020a625fd2SDavid S. Miller 4030a625fd2SDavid S. Miller static void n2_hash_cra_exit(struct crypto_tfm *tfm) 4040a625fd2SDavid S. Miller { 4050a625fd2SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 4060a625fd2SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash); 4070a625fd2SDavid S. Miller 408c9aa55e5SDavid S. Miller crypto_free_ahash(ctx->fallback_tfm); 4090a625fd2SDavid S. Miller } 4100a625fd2SDavid S. Miller 411dc4ccfd1SDavid S. Miller static int n2_hmac_cra_init(struct crypto_tfm *tfm) 412dc4ccfd1SDavid S. Miller { 4135837af01SMarek Vasut const char *fallback_driver_name = crypto_tfm_alg_name(tfm); 414dc4ccfd1SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 415dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); 416dc4ccfd1SDavid S. Miller struct n2_hmac_alg *n2alg = n2_hmac_alg(tfm); 417dc4ccfd1SDavid S. Miller struct crypto_ahash *fallback_tfm; 418dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash; 419dc4ccfd1SDavid S. Miller int err; 420dc4ccfd1SDavid S. Miller 421dc4ccfd1SDavid S. Miller fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0, 422dc4ccfd1SDavid S. Miller CRYPTO_ALG_NEED_FALLBACK); 423dc4ccfd1SDavid S. Miller if (IS_ERR(fallback_tfm)) { 424cacc594bSKefeng Wang pr_warn("Fallback driver '%s' could not be loaded!\n", 425dc4ccfd1SDavid S. Miller fallback_driver_name); 426dc4ccfd1SDavid S. Miller err = PTR_ERR(fallback_tfm); 427dc4ccfd1SDavid S. Miller goto out; 428dc4ccfd1SDavid S. Miller } 429dc4ccfd1SDavid S. Miller 430dc4ccfd1SDavid S. Miller child_shash = crypto_alloc_shash(n2alg->child_alg, 0, 0); 431dc4ccfd1SDavid S. Miller if (IS_ERR(child_shash)) { 432cacc594bSKefeng Wang pr_warn("Child shash '%s' could not be loaded!\n", 433dc4ccfd1SDavid S. Miller n2alg->child_alg); 434dc4ccfd1SDavid S. Miller err = PTR_ERR(child_shash); 435dc4ccfd1SDavid S. Miller goto out_free_fallback; 436dc4ccfd1SDavid S. Miller } 437dc4ccfd1SDavid S. Miller 438dc4ccfd1SDavid S. Miller crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) + 439dc4ccfd1SDavid S. Miller crypto_ahash_reqsize(fallback_tfm))); 440dc4ccfd1SDavid S. Miller 441dc4ccfd1SDavid S. Miller ctx->child_shash = child_shash; 442dc4ccfd1SDavid S. Miller ctx->base.fallback_tfm = fallback_tfm; 443dc4ccfd1SDavid S. Miller return 0; 444dc4ccfd1SDavid S. Miller 445dc4ccfd1SDavid S. Miller out_free_fallback: 446dc4ccfd1SDavid S. Miller crypto_free_ahash(fallback_tfm); 447dc4ccfd1SDavid S. Miller 448dc4ccfd1SDavid S. Miller out: 449dc4ccfd1SDavid S. Miller return err; 450dc4ccfd1SDavid S. Miller } 451dc4ccfd1SDavid S. Miller 452dc4ccfd1SDavid S. Miller static void n2_hmac_cra_exit(struct crypto_tfm *tfm) 453dc4ccfd1SDavid S. Miller { 454dc4ccfd1SDavid S. Miller struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); 455dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash); 456dc4ccfd1SDavid S. Miller 457dc4ccfd1SDavid S. Miller crypto_free_ahash(ctx->base.fallback_tfm); 458dc4ccfd1SDavid S. Miller crypto_free_shash(ctx->child_shash); 459dc4ccfd1SDavid S. Miller } 460dc4ccfd1SDavid S. Miller 461dc4ccfd1SDavid S. Miller static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key, 462dc4ccfd1SDavid S. Miller unsigned int keylen) 463dc4ccfd1SDavid S. Miller { 464dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); 465dc4ccfd1SDavid S. Miller struct crypto_shash *child_shash = ctx->child_shash; 466dc4ccfd1SDavid S. Miller struct crypto_ahash *fallback_tfm; 467dc4ccfd1SDavid S. Miller int err, bs, ds; 468dc4ccfd1SDavid S. Miller 469dc4ccfd1SDavid S. Miller fallback_tfm = ctx->base.fallback_tfm; 470dc4ccfd1SDavid S. Miller err = crypto_ahash_setkey(fallback_tfm, key, keylen); 471dc4ccfd1SDavid S. Miller if (err) 472dc4ccfd1SDavid S. Miller return err; 473dc4ccfd1SDavid S. Miller 474dc4ccfd1SDavid S. Miller bs = crypto_shash_blocksize(child_shash); 475dc4ccfd1SDavid S. Miller ds = crypto_shash_digestsize(child_shash); 476dc4ccfd1SDavid S. Miller BUG_ON(ds > N2_HASH_KEY_MAX); 477dc4ccfd1SDavid S. Miller if (keylen > bs) { 478ce8e0488SEric Biggers err = crypto_shash_tfm_digest(child_shash, key, keylen, 479dc4ccfd1SDavid S. Miller ctx->hash_key); 480dc4ccfd1SDavid S. Miller if (err) 481dc4ccfd1SDavid S. Miller return err; 482dc4ccfd1SDavid S. Miller keylen = ds; 483dc4ccfd1SDavid S. Miller } else if (keylen <= N2_HASH_KEY_MAX) 484dc4ccfd1SDavid S. Miller memcpy(ctx->hash_key, key, keylen); 485dc4ccfd1SDavid S. Miller 486dc4ccfd1SDavid S. Miller ctx->hash_key_len = keylen; 487dc4ccfd1SDavid S. Miller 488dc4ccfd1SDavid S. Miller return err; 489dc4ccfd1SDavid S. Miller } 490dc4ccfd1SDavid S. Miller 4910a625fd2SDavid S. Miller static unsigned long wait_for_tail(struct spu_queue *qp) 4920a625fd2SDavid S. Miller { 4930a625fd2SDavid S. Miller unsigned long head, hv_ret; 4940a625fd2SDavid S. Miller 4950a625fd2SDavid S. Miller do { 4960a625fd2SDavid S. Miller hv_ret = sun4v_ncs_gethead(qp->qhandle, &head); 4970a625fd2SDavid S. Miller if (hv_ret != HV_EOK) { 4980a625fd2SDavid S. Miller pr_err("Hypervisor error on gethead\n"); 4990a625fd2SDavid S. Miller break; 5000a625fd2SDavid S. Miller } 5010a625fd2SDavid S. Miller if (head == qp->tail) { 5020a625fd2SDavid S. Miller qp->head = head; 5030a625fd2SDavid S. Miller break; 5040a625fd2SDavid S. Miller } 5050a625fd2SDavid S. Miller } while (1); 5060a625fd2SDavid S. Miller return hv_ret; 5070a625fd2SDavid S. Miller } 5080a625fd2SDavid S. Miller 5090a625fd2SDavid S. Miller static unsigned long submit_and_wait_for_tail(struct spu_queue *qp, 5100a625fd2SDavid S. Miller struct cwq_initial_entry *ent) 5110a625fd2SDavid S. Miller { 5120a625fd2SDavid S. Miller unsigned long hv_ret = spu_queue_submit(qp, ent); 5130a625fd2SDavid S. Miller 5140a625fd2SDavid S. Miller if (hv_ret == HV_EOK) 5150a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 5160a625fd2SDavid S. Miller 5170a625fd2SDavid S. Miller return hv_ret; 5180a625fd2SDavid S. Miller } 5190a625fd2SDavid S. Miller 5203a2c0346SDavid S. Miller static int n2_do_async_digest(struct ahash_request *req, 5210a625fd2SDavid S. Miller unsigned int auth_type, unsigned int digest_size, 522dc4ccfd1SDavid S. Miller unsigned int result_size, void *hash_loc, 523dc4ccfd1SDavid S. Miller unsigned long auth_key, unsigned int auth_key_len) 5240a625fd2SDavid S. Miller { 5250a625fd2SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 5260a625fd2SDavid S. Miller struct cwq_initial_entry *ent; 5270a625fd2SDavid S. Miller struct crypto_hash_walk walk; 5280a625fd2SDavid S. Miller struct spu_queue *qp; 5290a625fd2SDavid S. Miller unsigned long flags; 5300a625fd2SDavid S. Miller int err = -ENODEV; 5310a625fd2SDavid S. Miller int nbytes, cpu; 5320a625fd2SDavid S. Miller 5330a625fd2SDavid S. Miller /* The total effective length of the operation may not 5340a625fd2SDavid S. Miller * exceed 2^16. 5350a625fd2SDavid S. Miller */ 5360a625fd2SDavid S. Miller if (unlikely(req->nbytes > (1 << 16))) { 537c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 53865a23d67SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 5390a625fd2SDavid S. Miller 540c9aa55e5SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 541c9aa55e5SDavid S. Miller rctx->fallback_req.base.flags = 542c9aa55e5SDavid S. Miller req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 543c9aa55e5SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 544c9aa55e5SDavid S. Miller rctx->fallback_req.src = req->src; 545c9aa55e5SDavid S. Miller rctx->fallback_req.result = req->result; 546c9aa55e5SDavid S. Miller 547c9aa55e5SDavid S. Miller return crypto_ahash_digest(&rctx->fallback_req); 5480a625fd2SDavid S. Miller } 5490a625fd2SDavid S. Miller 5500a625fd2SDavid S. Miller nbytes = crypto_hash_walk_first(req, &walk); 5510a625fd2SDavid S. Miller 5520a625fd2SDavid S. Miller cpu = get_cpu(); 5530a625fd2SDavid S. Miller qp = cpu_to_cwq[cpu]; 5540a625fd2SDavid S. Miller if (!qp) 5550a625fd2SDavid S. Miller goto out; 5560a625fd2SDavid S. Miller 5570a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 5580a625fd2SDavid S. Miller 5590a625fd2SDavid S. Miller /* XXX can do better, improve this later by doing a by-hand scatterlist 5600a625fd2SDavid S. Miller * XXX walk, etc. 5610a625fd2SDavid S. Miller */ 5620a625fd2SDavid S. Miller ent = qp->q + qp->tail; 5630a625fd2SDavid S. Miller 564dc4ccfd1SDavid S. Miller ent->control = control_word_base(nbytes, auth_key_len, 0, 5650a625fd2SDavid S. Miller auth_type, digest_size, 5660a625fd2SDavid S. Miller false, true, false, false, 5670a625fd2SDavid S. Miller OPCODE_INPLACE_BIT | 5680a625fd2SDavid S. Miller OPCODE_AUTH_MAC); 5690a625fd2SDavid S. Miller ent->src_addr = __pa(walk.data); 570dc4ccfd1SDavid S. Miller ent->auth_key_addr = auth_key; 5710a625fd2SDavid S. Miller ent->auth_iv_addr = __pa(hash_loc); 5720a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 5730a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 5740a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 5750a625fd2SDavid S. Miller ent->dest_addr = __pa(hash_loc); 5760a625fd2SDavid S. Miller 5770a625fd2SDavid S. Miller nbytes = crypto_hash_walk_done(&walk, 0); 5780a625fd2SDavid S. Miller while (nbytes > 0) { 5790a625fd2SDavid S. Miller ent = spu_queue_next(qp, ent); 5800a625fd2SDavid S. Miller 5810a625fd2SDavid S. Miller ent->control = (nbytes - 1); 5820a625fd2SDavid S. Miller ent->src_addr = __pa(walk.data); 5830a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 5840a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 5850a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 5860a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 5870a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 5880a625fd2SDavid S. Miller ent->dest_addr = 0UL; 5890a625fd2SDavid S. Miller 5900a625fd2SDavid S. Miller nbytes = crypto_hash_walk_done(&walk, 0); 5910a625fd2SDavid S. Miller } 5920a625fd2SDavid S. Miller ent->control |= CONTROL_END_OF_BLOCK; 5930a625fd2SDavid S. Miller 5940a625fd2SDavid S. Miller if (submit_and_wait_for_tail(qp, ent) != HV_EOK) 5950a625fd2SDavid S. Miller err = -EINVAL; 5960a625fd2SDavid S. Miller else 5970a625fd2SDavid S. Miller err = 0; 5980a625fd2SDavid S. Miller 5990a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 6000a625fd2SDavid S. Miller 6010a625fd2SDavid S. Miller if (!err) 6020a625fd2SDavid S. Miller memcpy(req->result, hash_loc, result_size); 6030a625fd2SDavid S. Miller out: 6040a625fd2SDavid S. Miller put_cpu(); 6050a625fd2SDavid S. Miller 6060a625fd2SDavid S. Miller return err; 6070a625fd2SDavid S. Miller } 6080a625fd2SDavid S. Miller 6093a2c0346SDavid S. Miller static int n2_hash_async_digest(struct ahash_request *req) 6100a625fd2SDavid S. Miller { 6113a2c0346SDavid S. Miller struct n2_ahash_alg *n2alg = n2_ahash_alg(req->base.tfm); 612c9aa55e5SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 6133a2c0346SDavid S. Miller int ds; 6140a625fd2SDavid S. Miller 6153a2c0346SDavid S. Miller ds = n2alg->digest_size; 6160a625fd2SDavid S. Miller if (unlikely(req->nbytes == 0)) { 6173a2c0346SDavid S. Miller memcpy(req->result, n2alg->hash_zero, ds); 6180a625fd2SDavid S. Miller return 0; 6190a625fd2SDavid S. Miller } 6203a2c0346SDavid S. Miller memcpy(&rctx->u, n2alg->hash_init, n2alg->hw_op_hashsz); 6210a625fd2SDavid S. Miller 6223a2c0346SDavid S. Miller return n2_do_async_digest(req, n2alg->auth_type, 6233a2c0346SDavid S. Miller n2alg->hw_op_hashsz, ds, 624dc4ccfd1SDavid S. Miller &rctx->u, 0UL, 0); 625dc4ccfd1SDavid S. Miller } 626dc4ccfd1SDavid S. Miller 627dc4ccfd1SDavid S. Miller static int n2_hmac_async_digest(struct ahash_request *req) 628dc4ccfd1SDavid S. Miller { 629dc4ccfd1SDavid S. Miller struct n2_hmac_alg *n2alg = n2_hmac_alg(req->base.tfm); 630dc4ccfd1SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 631dc4ccfd1SDavid S. Miller struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); 632dc4ccfd1SDavid S. Miller struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm); 633dc4ccfd1SDavid S. Miller int ds; 634dc4ccfd1SDavid S. Miller 635dc4ccfd1SDavid S. Miller ds = n2alg->derived.digest_size; 636dc4ccfd1SDavid S. Miller if (unlikely(req->nbytes == 0) || 637dc4ccfd1SDavid S. Miller unlikely(ctx->hash_key_len > N2_HASH_KEY_MAX)) { 638dc4ccfd1SDavid S. Miller struct n2_hash_req_ctx *rctx = ahash_request_ctx(req); 639dc4ccfd1SDavid S. Miller struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm); 640dc4ccfd1SDavid S. Miller 641dc4ccfd1SDavid S. Miller ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm); 642dc4ccfd1SDavid S. Miller rctx->fallback_req.base.flags = 643dc4ccfd1SDavid S. Miller req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP; 644dc4ccfd1SDavid S. Miller rctx->fallback_req.nbytes = req->nbytes; 645dc4ccfd1SDavid S. Miller rctx->fallback_req.src = req->src; 646dc4ccfd1SDavid S. Miller rctx->fallback_req.result = req->result; 647dc4ccfd1SDavid S. Miller 648dc4ccfd1SDavid S. Miller return crypto_ahash_digest(&rctx->fallback_req); 649dc4ccfd1SDavid S. Miller } 650dc4ccfd1SDavid S. Miller memcpy(&rctx->u, n2alg->derived.hash_init, 651dc4ccfd1SDavid S. Miller n2alg->derived.hw_op_hashsz); 652dc4ccfd1SDavid S. Miller 653dc4ccfd1SDavid S. Miller return n2_do_async_digest(req, n2alg->derived.hmac_type, 654dc4ccfd1SDavid S. Miller n2alg->derived.hw_op_hashsz, ds, 655dc4ccfd1SDavid S. Miller &rctx->u, 656dc4ccfd1SDavid S. Miller __pa(&ctx->hash_key), 657dc4ccfd1SDavid S. Miller ctx->hash_key_len); 6580a625fd2SDavid S. Miller } 6590a625fd2SDavid S. Miller 66023a6564aSArd Biesheuvel struct n2_skcipher_context { 6610a625fd2SDavid S. Miller int key_len; 6620a625fd2SDavid S. Miller int enc_type; 6630a625fd2SDavid S. Miller union { 6640a625fd2SDavid S. Miller u8 aes[AES_MAX_KEY_SIZE]; 6650a625fd2SDavid S. Miller u8 des[DES_KEY_SIZE]; 6660a625fd2SDavid S. Miller u8 des3[3 * DES_KEY_SIZE]; 6670a625fd2SDavid S. Miller } key; 6680a625fd2SDavid S. Miller }; 6690a625fd2SDavid S. Miller 6700a625fd2SDavid S. Miller #define N2_CHUNK_ARR_LEN 16 6710a625fd2SDavid S. Miller 6720a625fd2SDavid S. Miller struct n2_crypto_chunk { 6730a625fd2SDavid S. Miller struct list_head entry; 6740a625fd2SDavid S. Miller unsigned long iv_paddr : 44; 6750a625fd2SDavid S. Miller unsigned long arr_len : 20; 6760a625fd2SDavid S. Miller unsigned long dest_paddr; 6770a625fd2SDavid S. Miller unsigned long dest_final; 6780a625fd2SDavid S. Miller struct { 6790a625fd2SDavid S. Miller unsigned long src_paddr : 44; 6800a625fd2SDavid S. Miller unsigned long src_len : 20; 6810a625fd2SDavid S. Miller } arr[N2_CHUNK_ARR_LEN]; 6820a625fd2SDavid S. Miller }; 6830a625fd2SDavid S. Miller 6840a625fd2SDavid S. Miller struct n2_request_context { 68523a6564aSArd Biesheuvel struct skcipher_walk walk; 6860a625fd2SDavid S. Miller struct list_head chunk_list; 6870a625fd2SDavid S. Miller struct n2_crypto_chunk chunk; 6880a625fd2SDavid S. Miller u8 temp_iv[16]; 6890a625fd2SDavid S. Miller }; 6900a625fd2SDavid S. Miller 6910a625fd2SDavid S. Miller /* The SPU allows some level of flexibility for partial cipher blocks 6920a625fd2SDavid S. Miller * being specified in a descriptor. 6930a625fd2SDavid S. Miller * 6940a625fd2SDavid S. Miller * It merely requires that every descriptor's length field is at least 6950a625fd2SDavid S. Miller * as large as the cipher block size. This means that a cipher block 6960a625fd2SDavid S. Miller * can span at most 2 descriptors. However, this does not allow a 6970a625fd2SDavid S. Miller * partial block to span into the final descriptor as that would 6980a625fd2SDavid S. Miller * violate the rule (since every descriptor's length must be at lest 6990a625fd2SDavid S. Miller * the block size). So, for example, assuming an 8 byte block size: 7000a625fd2SDavid S. Miller * 7010a625fd2SDavid S. Miller * 0xe --> 0xa --> 0x8 7020a625fd2SDavid S. Miller * 7030a625fd2SDavid S. Miller * is a valid length sequence, whereas: 7040a625fd2SDavid S. Miller * 7050a625fd2SDavid S. Miller * 0xe --> 0xb --> 0x7 7060a625fd2SDavid S. Miller * 7070a625fd2SDavid S. Miller * is not a valid sequence. 7080a625fd2SDavid S. Miller */ 7090a625fd2SDavid S. Miller 71023a6564aSArd Biesheuvel struct n2_skcipher_alg { 7110a625fd2SDavid S. Miller struct list_head entry; 7120a625fd2SDavid S. Miller u8 enc_type; 71323a6564aSArd Biesheuvel struct skcipher_alg skcipher; 7140a625fd2SDavid S. Miller }; 7150a625fd2SDavid S. Miller 71623a6564aSArd Biesheuvel static inline struct n2_skcipher_alg *n2_skcipher_alg(struct crypto_skcipher *tfm) 7170a625fd2SDavid S. Miller { 71823a6564aSArd Biesheuvel struct skcipher_alg *alg = crypto_skcipher_alg(tfm); 7190a625fd2SDavid S. Miller 72023a6564aSArd Biesheuvel return container_of(alg, struct n2_skcipher_alg, skcipher); 7210a625fd2SDavid S. Miller } 7220a625fd2SDavid S. Miller 72323a6564aSArd Biesheuvel struct n2_skcipher_request_context { 72423a6564aSArd Biesheuvel struct skcipher_walk walk; 7250a625fd2SDavid S. Miller }; 7260a625fd2SDavid S. Miller 72723a6564aSArd Biesheuvel static int n2_aes_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7280a625fd2SDavid S. Miller unsigned int keylen) 7290a625fd2SDavid S. Miller { 73023a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 73123a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 73223a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 7330a625fd2SDavid S. Miller 7340a625fd2SDavid S. Miller ctx->enc_type = (n2alg->enc_type & ENC_TYPE_CHAINING_MASK); 7350a625fd2SDavid S. Miller 7360a625fd2SDavid S. Miller switch (keylen) { 7370a625fd2SDavid S. Miller case AES_KEYSIZE_128: 7380a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES128; 7390a625fd2SDavid S. Miller break; 7400a625fd2SDavid S. Miller case AES_KEYSIZE_192: 7410a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES192; 7420a625fd2SDavid S. Miller break; 7430a625fd2SDavid S. Miller case AES_KEYSIZE_256: 7440a625fd2SDavid S. Miller ctx->enc_type |= ENC_TYPE_ALG_AES256; 7450a625fd2SDavid S. Miller break; 7460a625fd2SDavid S. Miller default: 7470a625fd2SDavid S. Miller return -EINVAL; 7480a625fd2SDavid S. Miller } 7490a625fd2SDavid S. Miller 7500a625fd2SDavid S. Miller ctx->key_len = keylen; 7510a625fd2SDavid S. Miller memcpy(ctx->key.aes, key, keylen); 7520a625fd2SDavid S. Miller return 0; 7530a625fd2SDavid S. Miller } 7540a625fd2SDavid S. Miller 75523a6564aSArd Biesheuvel static int n2_des_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7560a625fd2SDavid S. Miller unsigned int keylen) 7570a625fd2SDavid S. Miller { 75823a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 75923a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 76023a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 7610a625fd2SDavid S. Miller int err; 7620a625fd2SDavid S. Miller 76323a6564aSArd Biesheuvel err = verify_skcipher_des_key(skcipher, key); 764d4b90dbcSArd Biesheuvel if (err) 765d4b90dbcSArd Biesheuvel return err; 766d4b90dbcSArd Biesheuvel 7670a625fd2SDavid S. Miller ctx->enc_type = n2alg->enc_type; 7680a625fd2SDavid S. Miller 7690a625fd2SDavid S. Miller ctx->key_len = keylen; 7700a625fd2SDavid S. Miller memcpy(ctx->key.des, key, keylen); 7710a625fd2SDavid S. Miller return 0; 7720a625fd2SDavid S. Miller } 7730a625fd2SDavid S. Miller 77423a6564aSArd Biesheuvel static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key, 7750a625fd2SDavid S. Miller unsigned int keylen) 7760a625fd2SDavid S. Miller { 77723a6564aSArd Biesheuvel struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); 77823a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm); 77923a6564aSArd Biesheuvel struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher); 780e4fffa5fSHerbert Xu int err; 781e4fffa5fSHerbert Xu 78223a6564aSArd Biesheuvel err = verify_skcipher_des3_key(skcipher, key); 783d4b90dbcSArd Biesheuvel if (err) 784e4fffa5fSHerbert Xu return err; 7850a625fd2SDavid S. Miller 7860a625fd2SDavid S. Miller ctx->enc_type = n2alg->enc_type; 7870a625fd2SDavid S. Miller 7880a625fd2SDavid S. Miller ctx->key_len = keylen; 7890a625fd2SDavid S. Miller memcpy(ctx->key.des3, key, keylen); 7900a625fd2SDavid S. Miller return 0; 7910a625fd2SDavid S. Miller } 7920a625fd2SDavid S. Miller 79323a6564aSArd Biesheuvel static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size) 7940a625fd2SDavid S. Miller { 7950a625fd2SDavid S. Miller int this_len = nbytes; 7960a625fd2SDavid S. Miller 7970a625fd2SDavid S. Miller this_len -= (nbytes & (block_size - 1)); 7980a625fd2SDavid S. Miller return this_len > (1 << 16) ? (1 << 16) : this_len; 7990a625fd2SDavid S. Miller } 8000a625fd2SDavid S. Miller 80123a6564aSArd Biesheuvel static int __n2_crypt_chunk(struct crypto_skcipher *skcipher, 80223a6564aSArd Biesheuvel struct n2_crypto_chunk *cp, 8030a625fd2SDavid S. Miller struct spu_queue *qp, bool encrypt) 8040a625fd2SDavid S. Miller { 80523a6564aSArd Biesheuvel struct n2_skcipher_context *ctx = crypto_skcipher_ctx(skcipher); 8060a625fd2SDavid S. Miller struct cwq_initial_entry *ent; 8070a625fd2SDavid S. Miller bool in_place; 8080a625fd2SDavid S. Miller int i; 8090a625fd2SDavid S. Miller 8100a625fd2SDavid S. Miller ent = spu_queue_alloc(qp, cp->arr_len); 8110a625fd2SDavid S. Miller if (!ent) { 8120a625fd2SDavid S. Miller pr_info("queue_alloc() of %d fails\n", 8130a625fd2SDavid S. Miller cp->arr_len); 8140a625fd2SDavid S. Miller return -EBUSY; 8150a625fd2SDavid S. Miller } 8160a625fd2SDavid S. Miller 8170a625fd2SDavid S. Miller in_place = (cp->dest_paddr == cp->arr[0].src_paddr); 8180a625fd2SDavid S. Miller 8190a625fd2SDavid S. Miller ent->control = control_word_base(cp->arr[0].src_len, 8200a625fd2SDavid S. Miller 0, ctx->enc_type, 0, 0, 8210a625fd2SDavid S. Miller false, true, false, encrypt, 8220a625fd2SDavid S. Miller OPCODE_ENCRYPT | 8230a625fd2SDavid S. Miller (in_place ? OPCODE_INPLACE_BIT : 0)); 8240a625fd2SDavid S. Miller ent->src_addr = cp->arr[0].src_paddr; 8250a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 8260a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 8270a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 8280a625fd2SDavid S. Miller ent->enc_key_addr = __pa(&ctx->key); 8290a625fd2SDavid S. Miller ent->enc_iv_addr = cp->iv_paddr; 8300a625fd2SDavid S. Miller ent->dest_addr = (in_place ? 0UL : cp->dest_paddr); 8310a625fd2SDavid S. Miller 8320a625fd2SDavid S. Miller for (i = 1; i < cp->arr_len; i++) { 8330a625fd2SDavid S. Miller ent = spu_queue_next(qp, ent); 8340a625fd2SDavid S. Miller 8350a625fd2SDavid S. Miller ent->control = cp->arr[i].src_len - 1; 8360a625fd2SDavid S. Miller ent->src_addr = cp->arr[i].src_paddr; 8370a625fd2SDavid S. Miller ent->auth_key_addr = 0UL; 8380a625fd2SDavid S. Miller ent->auth_iv_addr = 0UL; 8390a625fd2SDavid S. Miller ent->final_auth_state_addr = 0UL; 8400a625fd2SDavid S. Miller ent->enc_key_addr = 0UL; 8410a625fd2SDavid S. Miller ent->enc_iv_addr = 0UL; 8420a625fd2SDavid S. Miller ent->dest_addr = 0UL; 8430a625fd2SDavid S. Miller } 8440a625fd2SDavid S. Miller ent->control |= CONTROL_END_OF_BLOCK; 8450a625fd2SDavid S. Miller 8460a625fd2SDavid S. Miller return (spu_queue_submit(qp, ent) != HV_EOK) ? -EINVAL : 0; 8470a625fd2SDavid S. Miller } 8480a625fd2SDavid S. Miller 84923a6564aSArd Biesheuvel static int n2_compute_chunks(struct skcipher_request *req) 8500a625fd2SDavid S. Miller { 85123a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 85223a6564aSArd Biesheuvel struct skcipher_walk *walk = &rctx->walk; 8530a625fd2SDavid S. Miller struct n2_crypto_chunk *chunk; 8540a625fd2SDavid S. Miller unsigned long dest_prev; 8550a625fd2SDavid S. Miller unsigned int tot_len; 8560a625fd2SDavid S. Miller bool prev_in_place; 8570a625fd2SDavid S. Miller int err, nbytes; 8580a625fd2SDavid S. Miller 85923a6564aSArd Biesheuvel err = skcipher_walk_async(walk, req); 8600a625fd2SDavid S. Miller if (err) 8610a625fd2SDavid S. Miller return err; 8620a625fd2SDavid S. Miller 8630a625fd2SDavid S. Miller INIT_LIST_HEAD(&rctx->chunk_list); 8640a625fd2SDavid S. Miller 8650a625fd2SDavid S. Miller chunk = &rctx->chunk; 8660a625fd2SDavid S. Miller INIT_LIST_HEAD(&chunk->entry); 8670a625fd2SDavid S. Miller 8680a625fd2SDavid S. Miller chunk->iv_paddr = 0UL; 8690a625fd2SDavid S. Miller chunk->arr_len = 0; 8700a625fd2SDavid S. Miller chunk->dest_paddr = 0UL; 8710a625fd2SDavid S. Miller 8720a625fd2SDavid S. Miller prev_in_place = false; 8730a625fd2SDavid S. Miller dest_prev = ~0UL; 8740a625fd2SDavid S. Miller tot_len = 0; 8750a625fd2SDavid S. Miller 8760a625fd2SDavid S. Miller while ((nbytes = walk->nbytes) != 0) { 8770a625fd2SDavid S. Miller unsigned long dest_paddr, src_paddr; 8780a625fd2SDavid S. Miller bool in_place; 8790a625fd2SDavid S. Miller int this_len; 8800a625fd2SDavid S. Miller 88123a6564aSArd Biesheuvel src_paddr = (page_to_phys(walk->src.phys.page) + 88223a6564aSArd Biesheuvel walk->src.phys.offset); 88323a6564aSArd Biesheuvel dest_paddr = (page_to_phys(walk->dst.phys.page) + 88423a6564aSArd Biesheuvel walk->dst.phys.offset); 8850a625fd2SDavid S. Miller in_place = (src_paddr == dest_paddr); 88623a6564aSArd Biesheuvel this_len = skcipher_descriptor_len(nbytes, walk->blocksize); 8870a625fd2SDavid S. Miller 8880a625fd2SDavid S. Miller if (chunk->arr_len != 0) { 8890a625fd2SDavid S. Miller if (in_place != prev_in_place || 8900a625fd2SDavid S. Miller (!prev_in_place && 8910a625fd2SDavid S. Miller dest_paddr != dest_prev) || 8920a625fd2SDavid S. Miller chunk->arr_len == N2_CHUNK_ARR_LEN || 8930a625fd2SDavid S. Miller tot_len + this_len > (1 << 16)) { 8940a625fd2SDavid S. Miller chunk->dest_final = dest_prev; 8950a625fd2SDavid S. Miller list_add_tail(&chunk->entry, 8960a625fd2SDavid S. Miller &rctx->chunk_list); 8970a625fd2SDavid S. Miller chunk = kzalloc(sizeof(*chunk), GFP_ATOMIC); 8980a625fd2SDavid S. Miller if (!chunk) { 8990a625fd2SDavid S. Miller err = -ENOMEM; 9000a625fd2SDavid S. Miller break; 9010a625fd2SDavid S. Miller } 9020a625fd2SDavid S. Miller INIT_LIST_HEAD(&chunk->entry); 9030a625fd2SDavid S. Miller } 9040a625fd2SDavid S. Miller } 9050a625fd2SDavid S. Miller if (chunk->arr_len == 0) { 9060a625fd2SDavid S. Miller chunk->dest_paddr = dest_paddr; 9070a625fd2SDavid S. Miller tot_len = 0; 9080a625fd2SDavid S. Miller } 9090a625fd2SDavid S. Miller chunk->arr[chunk->arr_len].src_paddr = src_paddr; 9100a625fd2SDavid S. Miller chunk->arr[chunk->arr_len].src_len = this_len; 9110a625fd2SDavid S. Miller chunk->arr_len++; 9120a625fd2SDavid S. Miller 9130a625fd2SDavid S. Miller dest_prev = dest_paddr + this_len; 9140a625fd2SDavid S. Miller prev_in_place = in_place; 9150a625fd2SDavid S. Miller tot_len += this_len; 9160a625fd2SDavid S. Miller 91723a6564aSArd Biesheuvel err = skcipher_walk_done(walk, nbytes - this_len); 9180a625fd2SDavid S. Miller if (err) 9190a625fd2SDavid S. Miller break; 9200a625fd2SDavid S. Miller } 9210a625fd2SDavid S. Miller if (!err && chunk->arr_len != 0) { 9220a625fd2SDavid S. Miller chunk->dest_final = dest_prev; 9230a625fd2SDavid S. Miller list_add_tail(&chunk->entry, &rctx->chunk_list); 9240a625fd2SDavid S. Miller } 9250a625fd2SDavid S. Miller 9260a625fd2SDavid S. Miller return err; 9270a625fd2SDavid S. Miller } 9280a625fd2SDavid S. Miller 92923a6564aSArd Biesheuvel static void n2_chunk_complete(struct skcipher_request *req, void *final_iv) 9300a625fd2SDavid S. Miller { 93123a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 9320a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 9330a625fd2SDavid S. Miller 9340a625fd2SDavid S. Miller if (final_iv) 9350a625fd2SDavid S. Miller memcpy(rctx->walk.iv, final_iv, rctx->walk.blocksize); 9360a625fd2SDavid S. Miller 9370a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { 9380a625fd2SDavid S. Miller list_del(&c->entry); 9390a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 9400a625fd2SDavid S. Miller kfree(c); 9410a625fd2SDavid S. Miller } 9420a625fd2SDavid S. Miller 9430a625fd2SDavid S. Miller } 9440a625fd2SDavid S. Miller 94523a6564aSArd Biesheuvel static int n2_do_ecb(struct skcipher_request *req, bool encrypt) 9460a625fd2SDavid S. Miller { 94723a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 94823a6564aSArd Biesheuvel struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); 9490a625fd2SDavid S. Miller int err = n2_compute_chunks(req); 9500a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 9510a625fd2SDavid S. Miller unsigned long flags, hv_ret; 9520a625fd2SDavid S. Miller struct spu_queue *qp; 9530a625fd2SDavid S. Miller 9540a625fd2SDavid S. Miller if (err) 9550a625fd2SDavid S. Miller return err; 9560a625fd2SDavid S. Miller 9570a625fd2SDavid S. Miller qp = cpu_to_cwq[get_cpu()]; 9580a625fd2SDavid S. Miller err = -ENODEV; 9590a625fd2SDavid S. Miller if (!qp) 9600a625fd2SDavid S. Miller goto out; 9610a625fd2SDavid S. Miller 9620a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 9630a625fd2SDavid S. Miller 9640a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) { 9650a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, encrypt); 9660a625fd2SDavid S. Miller if (err) 9670a625fd2SDavid S. Miller break; 9680a625fd2SDavid S. Miller list_del(&c->entry); 9690a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 9700a625fd2SDavid S. Miller kfree(c); 9710a625fd2SDavid S. Miller } 9720a625fd2SDavid S. Miller if (!err) { 9730a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 9740a625fd2SDavid S. Miller if (hv_ret != HV_EOK) 9750a625fd2SDavid S. Miller err = -EINVAL; 9760a625fd2SDavid S. Miller } 9770a625fd2SDavid S. Miller 9780a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 9790a625fd2SDavid S. Miller 980e27303b2SThomas Meyer out: 9810a625fd2SDavid S. Miller put_cpu(); 9820a625fd2SDavid S. Miller 9830a625fd2SDavid S. Miller n2_chunk_complete(req, NULL); 9840a625fd2SDavid S. Miller return err; 9850a625fd2SDavid S. Miller } 9860a625fd2SDavid S. Miller 98723a6564aSArd Biesheuvel static int n2_encrypt_ecb(struct skcipher_request *req) 9880a625fd2SDavid S. Miller { 9890a625fd2SDavid S. Miller return n2_do_ecb(req, true); 9900a625fd2SDavid S. Miller } 9910a625fd2SDavid S. Miller 99223a6564aSArd Biesheuvel static int n2_decrypt_ecb(struct skcipher_request *req) 9930a625fd2SDavid S. Miller { 9940a625fd2SDavid S. Miller return n2_do_ecb(req, false); 9950a625fd2SDavid S. Miller } 9960a625fd2SDavid S. Miller 99723a6564aSArd Biesheuvel static int n2_do_chaining(struct skcipher_request *req, bool encrypt) 9980a625fd2SDavid S. Miller { 99923a6564aSArd Biesheuvel struct n2_request_context *rctx = skcipher_request_ctx(req); 100023a6564aSArd Biesheuvel struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); 10010a625fd2SDavid S. Miller unsigned long flags, hv_ret, iv_paddr; 10020a625fd2SDavid S. Miller int err = n2_compute_chunks(req); 10030a625fd2SDavid S. Miller struct n2_crypto_chunk *c, *tmp; 10040a625fd2SDavid S. Miller struct spu_queue *qp; 10050a625fd2SDavid S. Miller void *final_iv_addr; 10060a625fd2SDavid S. Miller 10070a625fd2SDavid S. Miller final_iv_addr = NULL; 10080a625fd2SDavid S. Miller 10090a625fd2SDavid S. Miller if (err) 10100a625fd2SDavid S. Miller return err; 10110a625fd2SDavid S. Miller 10120a625fd2SDavid S. Miller qp = cpu_to_cwq[get_cpu()]; 10130a625fd2SDavid S. Miller err = -ENODEV; 10140a625fd2SDavid S. Miller if (!qp) 10150a625fd2SDavid S. Miller goto out; 10160a625fd2SDavid S. Miller 10170a625fd2SDavid S. Miller spin_lock_irqsave(&qp->lock, flags); 10180a625fd2SDavid S. Miller 10190a625fd2SDavid S. Miller if (encrypt) { 10200a625fd2SDavid S. Miller iv_paddr = __pa(rctx->walk.iv); 10210a625fd2SDavid S. Miller list_for_each_entry_safe(c, tmp, &rctx->chunk_list, 10220a625fd2SDavid S. Miller entry) { 10230a625fd2SDavid S. Miller c->iv_paddr = iv_paddr; 10240a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, true); 10250a625fd2SDavid S. Miller if (err) 10260a625fd2SDavid S. Miller break; 10270a625fd2SDavid S. Miller iv_paddr = c->dest_final - rctx->walk.blocksize; 10280a625fd2SDavid S. Miller list_del(&c->entry); 10290a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 10300a625fd2SDavid S. Miller kfree(c); 10310a625fd2SDavid S. Miller } 10320a625fd2SDavid S. Miller final_iv_addr = __va(iv_paddr); 10330a625fd2SDavid S. Miller } else { 10340a625fd2SDavid S. Miller list_for_each_entry_safe_reverse(c, tmp, &rctx->chunk_list, 10350a625fd2SDavid S. Miller entry) { 10360a625fd2SDavid S. Miller if (c == &rctx->chunk) { 10370a625fd2SDavid S. Miller iv_paddr = __pa(rctx->walk.iv); 10380a625fd2SDavid S. Miller } else { 10390a625fd2SDavid S. Miller iv_paddr = (tmp->arr[tmp->arr_len-1].src_paddr + 10400a625fd2SDavid S. Miller tmp->arr[tmp->arr_len-1].src_len - 10410a625fd2SDavid S. Miller rctx->walk.blocksize); 10420a625fd2SDavid S. Miller } 10430a625fd2SDavid S. Miller if (!final_iv_addr) { 10440a625fd2SDavid S. Miller unsigned long pa; 10450a625fd2SDavid S. Miller 10460a625fd2SDavid S. Miller pa = (c->arr[c->arr_len-1].src_paddr + 10470a625fd2SDavid S. Miller c->arr[c->arr_len-1].src_len - 10480a625fd2SDavid S. Miller rctx->walk.blocksize); 10490a625fd2SDavid S. Miller final_iv_addr = rctx->temp_iv; 10500a625fd2SDavid S. Miller memcpy(rctx->temp_iv, __va(pa), 10510a625fd2SDavid S. Miller rctx->walk.blocksize); 10520a625fd2SDavid S. Miller } 10530a625fd2SDavid S. Miller c->iv_paddr = iv_paddr; 10540a625fd2SDavid S. Miller err = __n2_crypt_chunk(tfm, c, qp, false); 10550a625fd2SDavid S. Miller if (err) 10560a625fd2SDavid S. Miller break; 10570a625fd2SDavid S. Miller list_del(&c->entry); 10580a625fd2SDavid S. Miller if (unlikely(c != &rctx->chunk)) 10590a625fd2SDavid S. Miller kfree(c); 10600a625fd2SDavid S. Miller } 10610a625fd2SDavid S. Miller } 10620a625fd2SDavid S. Miller if (!err) { 10630a625fd2SDavid S. Miller hv_ret = wait_for_tail(qp); 10640a625fd2SDavid S. Miller if (hv_ret != HV_EOK) 10650a625fd2SDavid S. Miller err = -EINVAL; 10660a625fd2SDavid S. Miller } 10670a625fd2SDavid S. Miller 10680a625fd2SDavid S. Miller spin_unlock_irqrestore(&qp->lock, flags); 10690a625fd2SDavid S. Miller 1070e27303b2SThomas Meyer out: 10710a625fd2SDavid S. Miller put_cpu(); 10720a625fd2SDavid S. Miller 10730a625fd2SDavid S. Miller n2_chunk_complete(req, err ? NULL : final_iv_addr); 10740a625fd2SDavid S. Miller return err; 10750a625fd2SDavid S. Miller } 10760a625fd2SDavid S. Miller 107723a6564aSArd Biesheuvel static int n2_encrypt_chaining(struct skcipher_request *req) 10780a625fd2SDavid S. Miller { 10790a625fd2SDavid S. Miller return n2_do_chaining(req, true); 10800a625fd2SDavid S. Miller } 10810a625fd2SDavid S. Miller 108223a6564aSArd Biesheuvel static int n2_decrypt_chaining(struct skcipher_request *req) 10830a625fd2SDavid S. Miller { 10840a625fd2SDavid S. Miller return n2_do_chaining(req, false); 10850a625fd2SDavid S. Miller } 10860a625fd2SDavid S. Miller 108723a6564aSArd Biesheuvel struct n2_skcipher_tmpl { 10880a625fd2SDavid S. Miller const char *name; 10890a625fd2SDavid S. Miller const char *drv_name; 10900a625fd2SDavid S. Miller u8 block_size; 10910a625fd2SDavid S. Miller u8 enc_type; 109223a6564aSArd Biesheuvel struct skcipher_alg skcipher; 10930a625fd2SDavid S. Miller }; 10940a625fd2SDavid S. Miller 109523a6564aSArd Biesheuvel static const struct n2_skcipher_tmpl skcipher_tmpls[] = { 10960a625fd2SDavid S. Miller /* DES: ECB CBC and CFB are supported */ 10970a625fd2SDavid S. Miller { .name = "ecb(des)", 10980a625fd2SDavid S. Miller .drv_name = "ecb-des", 10990a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11000a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 11010a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 110223a6564aSArd Biesheuvel .skcipher = { 11030a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11040a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11050a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11060a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11070a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11080a625fd2SDavid S. Miller }, 11090a625fd2SDavid S. Miller }, 11100a625fd2SDavid S. Miller { .name = "cbc(des)", 11110a625fd2SDavid S. Miller .drv_name = "cbc-des", 11120a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11130a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 11140a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 111523a6564aSArd Biesheuvel .skcipher = { 11160a625fd2SDavid S. Miller .ivsize = DES_BLOCK_SIZE, 11170a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11180a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11190a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11200a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11210a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11220a625fd2SDavid S. Miller }, 11230a625fd2SDavid S. Miller }, 11240a625fd2SDavid S. Miller { .name = "cfb(des)", 11250a625fd2SDavid S. Miller .drv_name = "cfb-des", 11260a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11270a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_DES | 11280a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CFB), 112923a6564aSArd Biesheuvel .skcipher = { 11300a625fd2SDavid S. Miller .min_keysize = DES_KEY_SIZE, 11310a625fd2SDavid S. Miller .max_keysize = DES_KEY_SIZE, 11320a625fd2SDavid S. Miller .setkey = n2_des_setkey, 11330a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11340a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11350a625fd2SDavid S. Miller }, 11360a625fd2SDavid S. Miller }, 11370a625fd2SDavid S. Miller 11380a625fd2SDavid S. Miller /* 3DES: ECB CBC and CFB are supported */ 11390a625fd2SDavid S. Miller { .name = "ecb(des3_ede)", 11400a625fd2SDavid S. Miller .drv_name = "ecb-3des", 11410a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11420a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11430a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 114423a6564aSArd Biesheuvel .skcipher = { 11450a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11460a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11470a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11480a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11490a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11500a625fd2SDavid S. Miller }, 11510a625fd2SDavid S. Miller }, 11520a625fd2SDavid S. Miller { .name = "cbc(des3_ede)", 11530a625fd2SDavid S. Miller .drv_name = "cbc-3des", 11540a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11550a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11560a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 115723a6564aSArd Biesheuvel .skcipher = { 11580a625fd2SDavid S. Miller .ivsize = DES_BLOCK_SIZE, 11590a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11600a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11610a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11620a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11630a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11640a625fd2SDavid S. Miller }, 11650a625fd2SDavid S. Miller }, 11660a625fd2SDavid S. Miller { .name = "cfb(des3_ede)", 11670a625fd2SDavid S. Miller .drv_name = "cfb-3des", 11680a625fd2SDavid S. Miller .block_size = DES_BLOCK_SIZE, 11690a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_3DES | 11700a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CFB), 117123a6564aSArd Biesheuvel .skcipher = { 11720a625fd2SDavid S. Miller .min_keysize = 3 * DES_KEY_SIZE, 11730a625fd2SDavid S. Miller .max_keysize = 3 * DES_KEY_SIZE, 11740a625fd2SDavid S. Miller .setkey = n2_3des_setkey, 11750a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 11760a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 11770a625fd2SDavid S. Miller }, 11780a625fd2SDavid S. Miller }, 11790a625fd2SDavid S. Miller /* AES: ECB CBC and CTR are supported */ 11800a625fd2SDavid S. Miller { .name = "ecb(aes)", 11810a625fd2SDavid S. Miller .drv_name = "ecb-aes", 11820a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 11830a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 11840a625fd2SDavid S. Miller ENC_TYPE_CHAINING_ECB), 118523a6564aSArd Biesheuvel .skcipher = { 11860a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 11870a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 11880a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 11890a625fd2SDavid S. Miller .encrypt = n2_encrypt_ecb, 11900a625fd2SDavid S. Miller .decrypt = n2_decrypt_ecb, 11910a625fd2SDavid S. Miller }, 11920a625fd2SDavid S. Miller }, 11930a625fd2SDavid S. Miller { .name = "cbc(aes)", 11940a625fd2SDavid S. Miller .drv_name = "cbc-aes", 11950a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 11960a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 11970a625fd2SDavid S. Miller ENC_TYPE_CHAINING_CBC), 119823a6564aSArd Biesheuvel .skcipher = { 11990a625fd2SDavid S. Miller .ivsize = AES_BLOCK_SIZE, 12000a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 12010a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 12020a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 12030a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 12040a625fd2SDavid S. Miller .decrypt = n2_decrypt_chaining, 12050a625fd2SDavid S. Miller }, 12060a625fd2SDavid S. Miller }, 12070a625fd2SDavid S. Miller { .name = "ctr(aes)", 12080a625fd2SDavid S. Miller .drv_name = "ctr-aes", 12090a625fd2SDavid S. Miller .block_size = AES_BLOCK_SIZE, 12100a625fd2SDavid S. Miller .enc_type = (ENC_TYPE_ALG_AES128 | 12110a625fd2SDavid S. Miller ENC_TYPE_CHAINING_COUNTER), 121223a6564aSArd Biesheuvel .skcipher = { 12130a625fd2SDavid S. Miller .ivsize = AES_BLOCK_SIZE, 12140a625fd2SDavid S. Miller .min_keysize = AES_MIN_KEY_SIZE, 12150a625fd2SDavid S. Miller .max_keysize = AES_MAX_KEY_SIZE, 12160a625fd2SDavid S. Miller .setkey = n2_aes_setkey, 12170a625fd2SDavid S. Miller .encrypt = n2_encrypt_chaining, 12180a625fd2SDavid S. Miller .decrypt = n2_encrypt_chaining, 12190a625fd2SDavid S. Miller }, 12200a625fd2SDavid S. Miller }, 12210a625fd2SDavid S. Miller 12220a625fd2SDavid S. Miller }; 122323a6564aSArd Biesheuvel #define NUM_CIPHER_TMPLS ARRAY_SIZE(skcipher_tmpls) 12240a625fd2SDavid S. Miller 122523a6564aSArd Biesheuvel static LIST_HEAD(skcipher_algs); 12260a625fd2SDavid S. Miller 12270a625fd2SDavid S. Miller struct n2_hash_tmpl { 12280a625fd2SDavid S. Miller const char *name; 12298054b800SLABBE Corentin const u8 *hash_zero; 12306d77282fSHerbert Xu const u8 *hash_init; 12313a2c0346SDavid S. Miller u8 hw_op_hashsz; 12320a625fd2SDavid S. Miller u8 digest_size; 123376a4e874SCorentin Labbe u8 statesize; 12340a625fd2SDavid S. Miller u8 block_size; 12353a2c0346SDavid S. Miller u8 auth_type; 1236dc4ccfd1SDavid S. Miller u8 hmac_type; 12370a625fd2SDavid S. Miller }; 12383a2c0346SDavid S. Miller 12396d77282fSHerbert Xu static const __le32 n2_md5_init[MD5_HASH_WORDS] = { 1240d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H0), 1241d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H1), 1242d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H2), 1243d0bb9ee3SLABBE Corentin cpu_to_le32(MD5_H3), 12443a2c0346SDavid S. Miller }; 1245527aa895SHans de Goede static const u32 n2_sha1_init[SHA1_DIGEST_SIZE / 4] = { 12463a2c0346SDavid S. Miller SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4, 12473a2c0346SDavid S. Miller }; 1248527aa895SHans de Goede static const u32 n2_sha256_init[SHA256_DIGEST_SIZE / 4] = { 12493a2c0346SDavid S. Miller SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3, 12503a2c0346SDavid S. Miller SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7, 12513a2c0346SDavid S. Miller }; 1252527aa895SHans de Goede static const u32 n2_sha224_init[SHA256_DIGEST_SIZE / 4] = { 12533a2c0346SDavid S. Miller SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3, 12543a2c0346SDavid S. Miller SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7, 12553a2c0346SDavid S. Miller }; 12563a2c0346SDavid S. Miller 12570a625fd2SDavid S. Miller static const struct n2_hash_tmpl hash_tmpls[] = { 12580a625fd2SDavid S. Miller { .name = "md5", 12598054b800SLABBE Corentin .hash_zero = md5_zero_message_hash, 12606d77282fSHerbert Xu .hash_init = (u8 *)n2_md5_init, 12613a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_MD5, 1262dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_MD5, 12633a2c0346SDavid S. Miller .hw_op_hashsz = MD5_DIGEST_SIZE, 12640a625fd2SDavid S. Miller .digest_size = MD5_DIGEST_SIZE, 126576a4e874SCorentin Labbe .statesize = sizeof(struct md5_state), 12660a625fd2SDavid S. Miller .block_size = MD5_HMAC_BLOCK_SIZE }, 12670a625fd2SDavid S. Miller { .name = "sha1", 12688054b800SLABBE Corentin .hash_zero = sha1_zero_message_hash, 12696d77282fSHerbert Xu .hash_init = (u8 *)n2_sha1_init, 12703a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA1, 1271dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_SHA1, 12723a2c0346SDavid S. Miller .hw_op_hashsz = SHA1_DIGEST_SIZE, 12730a625fd2SDavid S. Miller .digest_size = SHA1_DIGEST_SIZE, 127476a4e874SCorentin Labbe .statesize = sizeof(struct sha1_state), 12750a625fd2SDavid S. Miller .block_size = SHA1_BLOCK_SIZE }, 12760a625fd2SDavid S. Miller { .name = "sha256", 12778054b800SLABBE Corentin .hash_zero = sha256_zero_message_hash, 12786d77282fSHerbert Xu .hash_init = (u8 *)n2_sha256_init, 12793a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA256, 1280dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_HMAC_SHA256, 12813a2c0346SDavid S. Miller .hw_op_hashsz = SHA256_DIGEST_SIZE, 12820a625fd2SDavid S. Miller .digest_size = SHA256_DIGEST_SIZE, 128376a4e874SCorentin Labbe .statesize = sizeof(struct sha256_state), 12840a625fd2SDavid S. Miller .block_size = SHA256_BLOCK_SIZE }, 12850a625fd2SDavid S. Miller { .name = "sha224", 12868054b800SLABBE Corentin .hash_zero = sha224_zero_message_hash, 12876d77282fSHerbert Xu .hash_init = (u8 *)n2_sha224_init, 12883a2c0346SDavid S. Miller .auth_type = AUTH_TYPE_SHA256, 1289dc4ccfd1SDavid S. Miller .hmac_type = AUTH_TYPE_RESERVED, 12903a2c0346SDavid S. Miller .hw_op_hashsz = SHA256_DIGEST_SIZE, 12910a625fd2SDavid S. Miller .digest_size = SHA224_DIGEST_SIZE, 129276a4e874SCorentin Labbe .statesize = sizeof(struct sha256_state), 12930a625fd2SDavid S. Miller .block_size = SHA224_BLOCK_SIZE }, 12940a625fd2SDavid S. Miller }; 12950a625fd2SDavid S. Miller #define NUM_HASH_TMPLS ARRAY_SIZE(hash_tmpls) 12960a625fd2SDavid S. Miller 12970a625fd2SDavid S. Miller static LIST_HEAD(ahash_algs); 1298dc4ccfd1SDavid S. Miller static LIST_HEAD(hmac_algs); 12990a625fd2SDavid S. Miller 13000a625fd2SDavid S. Miller static int algs_registered; 13010a625fd2SDavid S. Miller 13020a625fd2SDavid S. Miller static void __n2_unregister_algs(void) 13030a625fd2SDavid S. Miller { 130423a6564aSArd Biesheuvel struct n2_skcipher_alg *skcipher, *skcipher_tmp; 13050a625fd2SDavid S. Miller struct n2_ahash_alg *alg, *alg_tmp; 1306dc4ccfd1SDavid S. Miller struct n2_hmac_alg *hmac, *hmac_tmp; 13070a625fd2SDavid S. Miller 130823a6564aSArd Biesheuvel list_for_each_entry_safe(skcipher, skcipher_tmp, &skcipher_algs, entry) { 130923a6564aSArd Biesheuvel crypto_unregister_skcipher(&skcipher->skcipher); 131023a6564aSArd Biesheuvel list_del(&skcipher->entry); 131123a6564aSArd Biesheuvel kfree(skcipher); 13120a625fd2SDavid S. Miller } 1313dc4ccfd1SDavid S. Miller list_for_each_entry_safe(hmac, hmac_tmp, &hmac_algs, derived.entry) { 1314dc4ccfd1SDavid S. Miller crypto_unregister_ahash(&hmac->derived.alg); 1315dc4ccfd1SDavid S. Miller list_del(&hmac->derived.entry); 1316dc4ccfd1SDavid S. Miller kfree(hmac); 1317dc4ccfd1SDavid S. Miller } 13180a625fd2SDavid S. Miller list_for_each_entry_safe(alg, alg_tmp, &ahash_algs, entry) { 13190a625fd2SDavid S. Miller crypto_unregister_ahash(&alg->alg); 13200a625fd2SDavid S. Miller list_del(&alg->entry); 13210a625fd2SDavid S. Miller kfree(alg); 13220a625fd2SDavid S. Miller } 13230a625fd2SDavid S. Miller } 13240a625fd2SDavid S. Miller 132523a6564aSArd Biesheuvel static int n2_skcipher_init_tfm(struct crypto_skcipher *tfm) 13260a625fd2SDavid S. Miller { 132723a6564aSArd Biesheuvel crypto_skcipher_set_reqsize(tfm, sizeof(struct n2_request_context)); 13280a625fd2SDavid S. Miller return 0; 13290a625fd2SDavid S. Miller } 13300a625fd2SDavid S. Miller 133123a6564aSArd Biesheuvel static int __n2_register_one_skcipher(const struct n2_skcipher_tmpl *tmpl) 13320a625fd2SDavid S. Miller { 133323a6564aSArd Biesheuvel struct n2_skcipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 133423a6564aSArd Biesheuvel struct skcipher_alg *alg; 13350a625fd2SDavid S. Miller int err; 13360a625fd2SDavid S. Miller 13370a625fd2SDavid S. Miller if (!p) 13380a625fd2SDavid S. Miller return -ENOMEM; 13390a625fd2SDavid S. Miller 134023a6564aSArd Biesheuvel alg = &p->skcipher; 134123a6564aSArd Biesheuvel *alg = tmpl->skcipher; 13420a625fd2SDavid S. Miller 134323a6564aSArd Biesheuvel snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); 134423a6564aSArd Biesheuvel snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name); 134523a6564aSArd Biesheuvel alg->base.cra_priority = N2_CRA_PRIORITY; 1346b8aa7dc5SMikulas Patocka alg->base.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC | 1347b8aa7dc5SMikulas Patocka CRYPTO_ALG_ALLOCATES_MEMORY; 134823a6564aSArd Biesheuvel alg->base.cra_blocksize = tmpl->block_size; 13490a625fd2SDavid S. Miller p->enc_type = tmpl->enc_type; 135023a6564aSArd Biesheuvel alg->base.cra_ctxsize = sizeof(struct n2_skcipher_context); 135123a6564aSArd Biesheuvel alg->base.cra_module = THIS_MODULE; 135223a6564aSArd Biesheuvel alg->init = n2_skcipher_init_tfm; 13530a625fd2SDavid S. Miller 135423a6564aSArd Biesheuvel list_add(&p->entry, &skcipher_algs); 135523a6564aSArd Biesheuvel err = crypto_register_skcipher(alg); 13560a625fd2SDavid S. Miller if (err) { 135723a6564aSArd Biesheuvel pr_err("%s alg registration failed\n", alg->base.cra_name); 13580a625fd2SDavid S. Miller list_del(&p->entry); 13590a625fd2SDavid S. Miller kfree(p); 136038511108SDavid S. Miller } else { 136123a6564aSArd Biesheuvel pr_info("%s alg registered\n", alg->base.cra_name); 13620a625fd2SDavid S. Miller } 13630a625fd2SDavid S. Miller return err; 13640a625fd2SDavid S. Miller } 13650a625fd2SDavid S. Miller 136649cfe4dbSGreg Kroah-Hartman static int __n2_register_one_hmac(struct n2_ahash_alg *n2ahash) 1367dc4ccfd1SDavid S. Miller { 1368dc4ccfd1SDavid S. Miller struct n2_hmac_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 1369dc4ccfd1SDavid S. Miller struct ahash_alg *ahash; 1370dc4ccfd1SDavid S. Miller struct crypto_alg *base; 1371dc4ccfd1SDavid S. Miller int err; 1372dc4ccfd1SDavid S. Miller 1373dc4ccfd1SDavid S. Miller if (!p) 1374dc4ccfd1SDavid S. Miller return -ENOMEM; 1375dc4ccfd1SDavid S. Miller 1376dc4ccfd1SDavid S. Miller p->child_alg = n2ahash->alg.halg.base.cra_name; 1377dc4ccfd1SDavid S. Miller memcpy(&p->derived, n2ahash, sizeof(struct n2_ahash_alg)); 1378dc4ccfd1SDavid S. Miller INIT_LIST_HEAD(&p->derived.entry); 1379dc4ccfd1SDavid S. Miller 1380dc4ccfd1SDavid S. Miller ahash = &p->derived.alg; 1381dc4ccfd1SDavid S. Miller ahash->digest = n2_hmac_async_digest; 1382dc4ccfd1SDavid S. Miller ahash->setkey = n2_hmac_async_setkey; 1383dc4ccfd1SDavid S. Miller 1384dc4ccfd1SDavid S. Miller base = &ahash->halg.base; 1385dc4ccfd1SDavid S. Miller snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)", p->child_alg); 1386dc4ccfd1SDavid S. Miller snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "hmac-%s-n2", p->child_alg); 1387dc4ccfd1SDavid S. Miller 1388dc4ccfd1SDavid S. Miller base->cra_ctxsize = sizeof(struct n2_hmac_ctx); 1389dc4ccfd1SDavid S. Miller base->cra_init = n2_hmac_cra_init; 1390dc4ccfd1SDavid S. Miller base->cra_exit = n2_hmac_cra_exit; 1391dc4ccfd1SDavid S. Miller 1392dc4ccfd1SDavid S. Miller list_add(&p->derived.entry, &hmac_algs); 1393dc4ccfd1SDavid S. Miller err = crypto_register_ahash(ahash); 1394dc4ccfd1SDavid S. Miller if (err) { 1395dc4ccfd1SDavid S. Miller pr_err("%s alg registration failed\n", base->cra_name); 1396dc4ccfd1SDavid S. Miller list_del(&p->derived.entry); 1397dc4ccfd1SDavid S. Miller kfree(p); 1398dc4ccfd1SDavid S. Miller } else { 1399dc4ccfd1SDavid S. Miller pr_info("%s alg registered\n", base->cra_name); 1400dc4ccfd1SDavid S. Miller } 1401dc4ccfd1SDavid S. Miller return err; 1402dc4ccfd1SDavid S. Miller } 1403dc4ccfd1SDavid S. Miller 140449cfe4dbSGreg Kroah-Hartman static int __n2_register_one_ahash(const struct n2_hash_tmpl *tmpl) 14050a625fd2SDavid S. Miller { 14060a625fd2SDavid S. Miller struct n2_ahash_alg *p = kzalloc(sizeof(*p), GFP_KERNEL); 14070a625fd2SDavid S. Miller struct hash_alg_common *halg; 14080a625fd2SDavid S. Miller struct crypto_alg *base; 14090a625fd2SDavid S. Miller struct ahash_alg *ahash; 14100a625fd2SDavid S. Miller int err; 14110a625fd2SDavid S. Miller 14120a625fd2SDavid S. Miller if (!p) 14130a625fd2SDavid S. Miller return -ENOMEM; 14140a625fd2SDavid S. Miller 14153a2c0346SDavid S. Miller p->hash_zero = tmpl->hash_zero; 14163a2c0346SDavid S. Miller p->hash_init = tmpl->hash_init; 14173a2c0346SDavid S. Miller p->auth_type = tmpl->auth_type; 1418dc4ccfd1SDavid S. Miller p->hmac_type = tmpl->hmac_type; 14193a2c0346SDavid S. Miller p->hw_op_hashsz = tmpl->hw_op_hashsz; 14203a2c0346SDavid S. Miller p->digest_size = tmpl->digest_size; 14213a2c0346SDavid S. Miller 14220a625fd2SDavid S. Miller ahash = &p->alg; 14230a625fd2SDavid S. Miller ahash->init = n2_hash_async_init; 14240a625fd2SDavid S. Miller ahash->update = n2_hash_async_update; 14250a625fd2SDavid S. Miller ahash->final = n2_hash_async_final; 14260a625fd2SDavid S. Miller ahash->finup = n2_hash_async_finup; 14273a2c0346SDavid S. Miller ahash->digest = n2_hash_async_digest; 1428378fe6fbSKamil Konieczny ahash->export = n2_hash_async_noexport; 1429378fe6fbSKamil Konieczny ahash->import = n2_hash_async_noimport; 14300a625fd2SDavid S. Miller 14310a625fd2SDavid S. Miller halg = &ahash->halg; 14320a625fd2SDavid S. Miller halg->digestsize = tmpl->digest_size; 143376a4e874SCorentin Labbe halg->statesize = tmpl->statesize; 14340a625fd2SDavid S. Miller 14350a625fd2SDavid S. Miller base = &halg->base; 14360a625fd2SDavid S. Miller snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); 14370a625fd2SDavid S. Miller snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->name); 14380a625fd2SDavid S. Miller base->cra_priority = N2_CRA_PRIORITY; 14396a38f622SEric Biggers base->cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | 1440d912bb76SNikos Mavrogiannopoulos CRYPTO_ALG_NEED_FALLBACK; 14410a625fd2SDavid S. Miller base->cra_blocksize = tmpl->block_size; 14420a625fd2SDavid S. Miller base->cra_ctxsize = sizeof(struct n2_hash_ctx); 14430a625fd2SDavid S. Miller base->cra_module = THIS_MODULE; 14440a625fd2SDavid S. Miller base->cra_init = n2_hash_cra_init; 14450a625fd2SDavid S. Miller base->cra_exit = n2_hash_cra_exit; 14460a625fd2SDavid S. Miller 14470a625fd2SDavid S. Miller list_add(&p->entry, &ahash_algs); 14480a625fd2SDavid S. Miller err = crypto_register_ahash(ahash); 14490a625fd2SDavid S. Miller if (err) { 145038511108SDavid S. Miller pr_err("%s alg registration failed\n", base->cra_name); 14510a625fd2SDavid S. Miller list_del(&p->entry); 14520a625fd2SDavid S. Miller kfree(p); 145338511108SDavid S. Miller } else { 145438511108SDavid S. Miller pr_info("%s alg registered\n", base->cra_name); 14550a625fd2SDavid S. Miller } 1456dc4ccfd1SDavid S. Miller if (!err && p->hmac_type != AUTH_TYPE_RESERVED) 1457dc4ccfd1SDavid S. Miller err = __n2_register_one_hmac(p); 14580a625fd2SDavid S. Miller return err; 14590a625fd2SDavid S. Miller } 14600a625fd2SDavid S. Miller 146149cfe4dbSGreg Kroah-Hartman static int n2_register_algs(void) 14620a625fd2SDavid S. Miller { 14630a625fd2SDavid S. Miller int i, err = 0; 14640a625fd2SDavid S. Miller 14650a625fd2SDavid S. Miller mutex_lock(&spu_lock); 14660a625fd2SDavid S. Miller if (algs_registered++) 14670a625fd2SDavid S. Miller goto out; 14680a625fd2SDavid S. Miller 14690a625fd2SDavid S. Miller for (i = 0; i < NUM_HASH_TMPLS; i++) { 14700a625fd2SDavid S. Miller err = __n2_register_one_ahash(&hash_tmpls[i]); 14710a625fd2SDavid S. Miller if (err) { 14720a625fd2SDavid S. Miller __n2_unregister_algs(); 14730a625fd2SDavid S. Miller goto out; 14740a625fd2SDavid S. Miller } 14750a625fd2SDavid S. Miller } 14760a625fd2SDavid S. Miller for (i = 0; i < NUM_CIPHER_TMPLS; i++) { 147723a6564aSArd Biesheuvel err = __n2_register_one_skcipher(&skcipher_tmpls[i]); 14780a625fd2SDavid S. Miller if (err) { 14790a625fd2SDavid S. Miller __n2_unregister_algs(); 14800a625fd2SDavid S. Miller goto out; 14810a625fd2SDavid S. Miller } 14820a625fd2SDavid S. Miller } 14830a625fd2SDavid S. Miller 14840a625fd2SDavid S. Miller out: 14850a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 14860a625fd2SDavid S. Miller return err; 14870a625fd2SDavid S. Miller } 14880a625fd2SDavid S. Miller 148949cfe4dbSGreg Kroah-Hartman static void n2_unregister_algs(void) 14900a625fd2SDavid S. Miller { 14910a625fd2SDavid S. Miller mutex_lock(&spu_lock); 14920a625fd2SDavid S. Miller if (!--algs_registered) 14930a625fd2SDavid S. Miller __n2_unregister_algs(); 14940a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 14950a625fd2SDavid S. Miller } 14960a625fd2SDavid S. Miller 14970a625fd2SDavid S. Miller /* To map CWQ queues to interrupt sources, the hypervisor API provides 14980a625fd2SDavid S. Miller * a devino. This isn't very useful to us because all of the 14992dc11581SGrant Likely * interrupts listed in the device_node have been translated to 15000a625fd2SDavid S. Miller * Linux virtual IRQ cookie numbers. 15010a625fd2SDavid S. Miller * 15020a625fd2SDavid S. Miller * So we have to back-translate, going through the 'intr' and 'ino' 15030a625fd2SDavid S. Miller * property tables of the n2cp MDESC node, matching it with the OF 15048c8e5b6aSwangjianli * 'interrupts' property entries, in order to figure out which 15050a625fd2SDavid S. Miller * devino goes to which already-translated IRQ. 15060a625fd2SDavid S. Miller */ 15072dc11581SGrant Likely static int find_devino_index(struct platform_device *dev, struct spu_mdesc_info *ip, 15080a625fd2SDavid S. Miller unsigned long dev_ino) 15090a625fd2SDavid S. Miller { 15100a625fd2SDavid S. Miller const unsigned int *dev_intrs; 15110a625fd2SDavid S. Miller unsigned int intr; 15120a625fd2SDavid S. Miller int i; 15130a625fd2SDavid S. Miller 15140a625fd2SDavid S. Miller for (i = 0; i < ip->num_intrs; i++) { 15150a625fd2SDavid S. Miller if (ip->ino_table[i].ino == dev_ino) 15160a625fd2SDavid S. Miller break; 15170a625fd2SDavid S. Miller } 15180a625fd2SDavid S. Miller if (i == ip->num_intrs) 15190a625fd2SDavid S. Miller return -ENODEV; 15200a625fd2SDavid S. Miller 15210a625fd2SDavid S. Miller intr = ip->ino_table[i].intr; 15220a625fd2SDavid S. Miller 1523ff6c7341SDavid S. Miller dev_intrs = of_get_property(dev->dev.of_node, "interrupts", NULL); 15240a625fd2SDavid S. Miller if (!dev_intrs) 15250a625fd2SDavid S. Miller return -ENODEV; 15260a625fd2SDavid S. Miller 152719e4875fSGrant Likely for (i = 0; i < dev->archdata.num_irqs; i++) { 15280a625fd2SDavid S. Miller if (dev_intrs[i] == intr) 15290a625fd2SDavid S. Miller return i; 15300a625fd2SDavid S. Miller } 15310a625fd2SDavid S. Miller 15320a625fd2SDavid S. Miller return -ENODEV; 15330a625fd2SDavid S. Miller } 15340a625fd2SDavid S. Miller 15352dc11581SGrant Likely static int spu_map_ino(struct platform_device *dev, struct spu_mdesc_info *ip, 15360a625fd2SDavid S. Miller const char *irq_name, struct spu_queue *p, 15370a625fd2SDavid S. Miller irq_handler_t handler) 15380a625fd2SDavid S. Miller { 15390a625fd2SDavid S. Miller unsigned long herr; 15400a625fd2SDavid S. Miller int index; 15410a625fd2SDavid S. Miller 15420a625fd2SDavid S. Miller herr = sun4v_ncs_qhandle_to_devino(p->qhandle, &p->devino); 15430a625fd2SDavid S. Miller if (herr) 15440a625fd2SDavid S. Miller return -EINVAL; 15450a625fd2SDavid S. Miller 15460a625fd2SDavid S. Miller index = find_devino_index(dev, ip, p->devino); 15470a625fd2SDavid S. Miller if (index < 0) 15480a625fd2SDavid S. Miller return index; 15490a625fd2SDavid S. Miller 155019e4875fSGrant Likely p->irq = dev->archdata.irqs[index]; 15510a625fd2SDavid S. Miller 15520a625fd2SDavid S. Miller sprintf(p->irq_name, "%s-%d", irq_name, index); 15530a625fd2SDavid S. Miller 15549751bfd1STheodore Ts'o return request_irq(p->irq, handler, 0, p->irq_name, p); 15550a625fd2SDavid S. Miller } 15560a625fd2SDavid S. Miller 15570a625fd2SDavid S. Miller static struct kmem_cache *queue_cache[2]; 15580a625fd2SDavid S. Miller 15590a625fd2SDavid S. Miller static void *new_queue(unsigned long q_type) 15600a625fd2SDavid S. Miller { 15610a625fd2SDavid S. Miller return kmem_cache_zalloc(queue_cache[q_type - 1], GFP_KERNEL); 15620a625fd2SDavid S. Miller } 15630a625fd2SDavid S. Miller 15640a625fd2SDavid S. Miller static void free_queue(void *p, unsigned long q_type) 15650a625fd2SDavid S. Miller { 1566150f6d45SAmitoj Kaur Chawla kmem_cache_free(queue_cache[q_type - 1], p); 15670a625fd2SDavid S. Miller } 15680a625fd2SDavid S. Miller 15690a625fd2SDavid S. Miller static int queue_cache_init(void) 15700a625fd2SDavid S. Miller { 15710a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) 15720a625fd2SDavid S. Miller queue_cache[HV_NCS_QTYPE_MAU - 1] = 1573527b9525SDavid S. Miller kmem_cache_create("mau_queue", 15740a625fd2SDavid S. Miller (MAU_NUM_ENTRIES * 15750a625fd2SDavid S. Miller MAU_ENTRY_SIZE), 15760a625fd2SDavid S. Miller MAU_ENTRY_SIZE, 0, NULL); 15770a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_MAU - 1]) 15780a625fd2SDavid S. Miller return -ENOMEM; 15790a625fd2SDavid S. Miller 15800a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) 15810a625fd2SDavid S. Miller queue_cache[HV_NCS_QTYPE_CWQ - 1] = 15820a625fd2SDavid S. Miller kmem_cache_create("cwq_queue", 15830a625fd2SDavid S. Miller (CWQ_NUM_ENTRIES * 15840a625fd2SDavid S. Miller CWQ_ENTRY_SIZE), 15850a625fd2SDavid S. Miller CWQ_ENTRY_SIZE, 0, NULL); 15860a625fd2SDavid S. Miller if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) { 15870a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); 1588203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; 15890a625fd2SDavid S. Miller return -ENOMEM; 15900a625fd2SDavid S. Miller } 15910a625fd2SDavid S. Miller return 0; 15920a625fd2SDavid S. Miller } 15930a625fd2SDavid S. Miller 15940a625fd2SDavid S. Miller static void queue_cache_destroy(void) 15950a625fd2SDavid S. Miller { 15960a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]); 15970a625fd2SDavid S. Miller kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]); 1598203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL; 1599203f4500SJan Engelhardt queue_cache[HV_NCS_QTYPE_CWQ - 1] = NULL; 16000a625fd2SDavid S. Miller } 16010a625fd2SDavid S. Miller 160273810a06SThomas Gleixner static long spu_queue_register_workfn(void *arg) 16030a625fd2SDavid S. Miller { 160473810a06SThomas Gleixner struct spu_qreg *qr = arg; 160573810a06SThomas Gleixner struct spu_queue *p = qr->queue; 160673810a06SThomas Gleixner unsigned long q_type = qr->type; 16070a625fd2SDavid S. Miller unsigned long hv_ret; 16080a625fd2SDavid S. Miller 16090a625fd2SDavid S. Miller hv_ret = sun4v_ncs_qconf(q_type, __pa(p->q), 16100a625fd2SDavid S. Miller CWQ_NUM_ENTRIES, &p->qhandle); 16110a625fd2SDavid S. Miller if (!hv_ret) 16120a625fd2SDavid S. Miller sun4v_ncs_sethead_marker(p->qhandle, 0); 16130a625fd2SDavid S. Miller 161473810a06SThomas Gleixner return hv_ret ? -EINVAL : 0; 161573810a06SThomas Gleixner } 16160a625fd2SDavid S. Miller 161773810a06SThomas Gleixner static int spu_queue_register(struct spu_queue *p, unsigned long q_type) 161873810a06SThomas Gleixner { 161973810a06SThomas Gleixner int cpu = cpumask_any_and(&p->sharing, cpu_online_mask); 162073810a06SThomas Gleixner struct spu_qreg qr = { .queue = p, .type = q_type }; 16210a625fd2SDavid S. Miller 162273810a06SThomas Gleixner return work_on_cpu_safe(cpu, spu_queue_register_workfn, &qr); 16230a625fd2SDavid S. Miller } 16240a625fd2SDavid S. Miller 16250a625fd2SDavid S. Miller static int spu_queue_setup(struct spu_queue *p) 16260a625fd2SDavid S. Miller { 16270a625fd2SDavid S. Miller int err; 16280a625fd2SDavid S. Miller 16290a625fd2SDavid S. Miller p->q = new_queue(p->q_type); 16300a625fd2SDavid S. Miller if (!p->q) 16310a625fd2SDavid S. Miller return -ENOMEM; 16320a625fd2SDavid S. Miller 16330a625fd2SDavid S. Miller err = spu_queue_register(p, p->q_type); 16340a625fd2SDavid S. Miller if (err) { 16350a625fd2SDavid S. Miller free_queue(p->q, p->q_type); 16360a625fd2SDavid S. Miller p->q = NULL; 16370a625fd2SDavid S. Miller } 16380a625fd2SDavid S. Miller 16390a625fd2SDavid S. Miller return err; 16400a625fd2SDavid S. Miller } 16410a625fd2SDavid S. Miller 16420a625fd2SDavid S. Miller static void spu_queue_destroy(struct spu_queue *p) 16430a625fd2SDavid S. Miller { 16440a625fd2SDavid S. Miller unsigned long hv_ret; 16450a625fd2SDavid S. Miller 16460a625fd2SDavid S. Miller if (!p->q) 16470a625fd2SDavid S. Miller return; 16480a625fd2SDavid S. Miller 16490a625fd2SDavid S. Miller hv_ret = sun4v_ncs_qconf(p->q_type, p->qhandle, 0, &p->qhandle); 16500a625fd2SDavid S. Miller 16510a625fd2SDavid S. Miller if (!hv_ret) 16520a625fd2SDavid S. Miller free_queue(p->q, p->q_type); 16530a625fd2SDavid S. Miller } 16540a625fd2SDavid S. Miller 16550a625fd2SDavid S. Miller static void spu_list_destroy(struct list_head *list) 16560a625fd2SDavid S. Miller { 16570a625fd2SDavid S. Miller struct spu_queue *p, *n; 16580a625fd2SDavid S. Miller 16590a625fd2SDavid S. Miller list_for_each_entry_safe(p, n, list, list) { 16600a625fd2SDavid S. Miller int i; 16610a625fd2SDavid S. Miller 16620a625fd2SDavid S. Miller for (i = 0; i < NR_CPUS; i++) { 16630a625fd2SDavid S. Miller if (cpu_to_cwq[i] == p) 16640a625fd2SDavid S. Miller cpu_to_cwq[i] = NULL; 16650a625fd2SDavid S. Miller } 16660a625fd2SDavid S. Miller 16670a625fd2SDavid S. Miller if (p->irq) { 16680a625fd2SDavid S. Miller free_irq(p->irq, p); 16690a625fd2SDavid S. Miller p->irq = 0; 16700a625fd2SDavid S. Miller } 16710a625fd2SDavid S. Miller spu_queue_destroy(p); 16720a625fd2SDavid S. Miller list_del(&p->list); 16730a625fd2SDavid S. Miller kfree(p); 16740a625fd2SDavid S. Miller } 16750a625fd2SDavid S. Miller } 16760a625fd2SDavid S. Miller 16770a625fd2SDavid S. Miller /* Walk the backward arcs of a CWQ 'exec-unit' node, 16780a625fd2SDavid S. Miller * gathering cpu membership information. 16790a625fd2SDavid S. Miller */ 16800a625fd2SDavid S. Miller static int spu_mdesc_walk_arcs(struct mdesc_handle *mdesc, 16812dc11581SGrant Likely struct platform_device *dev, 16820a625fd2SDavid S. Miller u64 node, struct spu_queue *p, 16830a625fd2SDavid S. Miller struct spu_queue **table) 16840a625fd2SDavid S. Miller { 16850a625fd2SDavid S. Miller u64 arc; 16860a625fd2SDavid S. Miller 16870a625fd2SDavid S. Miller mdesc_for_each_arc(arc, mdesc, node, MDESC_ARC_TYPE_BACK) { 16880a625fd2SDavid S. Miller u64 tgt = mdesc_arc_target(mdesc, arc); 16890a625fd2SDavid S. Miller const char *name = mdesc_node_name(mdesc, tgt); 16900a625fd2SDavid S. Miller const u64 *id; 16910a625fd2SDavid S. Miller 16920a625fd2SDavid S. Miller if (strcmp(name, "cpu")) 16930a625fd2SDavid S. Miller continue; 16940a625fd2SDavid S. Miller id = mdesc_get_property(mdesc, tgt, "id", NULL); 16950a625fd2SDavid S. Miller if (table[*id] != NULL) { 1696b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: SPU cpu slot already set.\n", 1697b2e870f2SRob Herring dev->dev.of_node); 16980a625fd2SDavid S. Miller return -EINVAL; 16990a625fd2SDavid S. Miller } 1700f9b531feSRusty Russell cpumask_set_cpu(*id, &p->sharing); 17010a625fd2SDavid S. Miller table[*id] = p; 17020a625fd2SDavid S. Miller } 17030a625fd2SDavid S. Miller return 0; 17040a625fd2SDavid S. Miller } 17050a625fd2SDavid S. Miller 17060a625fd2SDavid S. Miller /* Process an 'exec-unit' MDESC node of type 'cwq'. */ 17070a625fd2SDavid S. Miller static int handle_exec_unit(struct spu_mdesc_info *ip, struct list_head *list, 17082dc11581SGrant Likely struct platform_device *dev, struct mdesc_handle *mdesc, 17090a625fd2SDavid S. Miller u64 node, const char *iname, unsigned long q_type, 17100a625fd2SDavid S. Miller irq_handler_t handler, struct spu_queue **table) 17110a625fd2SDavid S. Miller { 17120a625fd2SDavid S. Miller struct spu_queue *p; 17130a625fd2SDavid S. Miller int err; 17140a625fd2SDavid S. Miller 17150a625fd2SDavid S. Miller p = kzalloc(sizeof(struct spu_queue), GFP_KERNEL); 17160a625fd2SDavid S. Miller if (!p) { 1717b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Could not allocate SPU queue.\n", 1718b2e870f2SRob Herring dev->dev.of_node); 17190a625fd2SDavid S. Miller return -ENOMEM; 17200a625fd2SDavid S. Miller } 17210a625fd2SDavid S. Miller 1722f9b531feSRusty Russell cpumask_clear(&p->sharing); 17230a625fd2SDavid S. Miller spin_lock_init(&p->lock); 17240a625fd2SDavid S. Miller p->q_type = q_type; 17250a625fd2SDavid S. Miller INIT_LIST_HEAD(&p->jobs); 17260a625fd2SDavid S. Miller list_add(&p->list, list); 17270a625fd2SDavid S. Miller 17280a625fd2SDavid S. Miller err = spu_mdesc_walk_arcs(mdesc, dev, node, p, table); 17290a625fd2SDavid S. Miller if (err) 17300a625fd2SDavid S. Miller return err; 17310a625fd2SDavid S. Miller 17320a625fd2SDavid S. Miller err = spu_queue_setup(p); 17330a625fd2SDavid S. Miller if (err) 17340a625fd2SDavid S. Miller return err; 17350a625fd2SDavid S. Miller 17360a625fd2SDavid S. Miller return spu_map_ino(dev, ip, iname, p, handler); 17370a625fd2SDavid S. Miller } 17380a625fd2SDavid S. Miller 17392dc11581SGrant Likely static int spu_mdesc_scan(struct mdesc_handle *mdesc, struct platform_device *dev, 17400a625fd2SDavid S. Miller struct spu_mdesc_info *ip, struct list_head *list, 17410a625fd2SDavid S. Miller const char *exec_name, unsigned long q_type, 17420a625fd2SDavid S. Miller irq_handler_t handler, struct spu_queue **table) 17430a625fd2SDavid S. Miller { 17440a625fd2SDavid S. Miller int err = 0; 17450a625fd2SDavid S. Miller u64 node; 17460a625fd2SDavid S. Miller 17470a625fd2SDavid S. Miller mdesc_for_each_node_by_name(mdesc, node, "exec-unit") { 17480a625fd2SDavid S. Miller const char *type; 17490a625fd2SDavid S. Miller 17500a625fd2SDavid S. Miller type = mdesc_get_property(mdesc, node, "type", NULL); 17510a625fd2SDavid S. Miller if (!type || strcmp(type, exec_name)) 17520a625fd2SDavid S. Miller continue; 17530a625fd2SDavid S. Miller 17540a625fd2SDavid S. Miller err = handle_exec_unit(ip, list, dev, mdesc, node, 17550a625fd2SDavid S. Miller exec_name, q_type, handler, table); 17560a625fd2SDavid S. Miller if (err) { 17570a625fd2SDavid S. Miller spu_list_destroy(list); 17580a625fd2SDavid S. Miller break; 17590a625fd2SDavid S. Miller } 17600a625fd2SDavid S. Miller } 17610a625fd2SDavid S. Miller 17620a625fd2SDavid S. Miller return err; 17630a625fd2SDavid S. Miller } 17640a625fd2SDavid S. Miller 176549cfe4dbSGreg Kroah-Hartman static int get_irq_props(struct mdesc_handle *mdesc, u64 node, 17660a625fd2SDavid S. Miller struct spu_mdesc_info *ip) 17670a625fd2SDavid S. Miller { 1768eb7caf35SDavid S. Miller const u64 *ino; 1769eb7caf35SDavid S. Miller int ino_len; 17700a625fd2SDavid S. Miller int i; 17710a625fd2SDavid S. Miller 17720a625fd2SDavid S. Miller ino = mdesc_get_property(mdesc, node, "ino", &ino_len); 1773eb7caf35SDavid S. Miller if (!ino) { 1774eb7caf35SDavid S. Miller printk("NO 'ino'\n"); 17750a625fd2SDavid S. Miller return -ENODEV; 1776eb7caf35SDavid S. Miller } 17770a625fd2SDavid S. Miller 1778eb7caf35SDavid S. Miller ip->num_intrs = ino_len / sizeof(u64); 17790a625fd2SDavid S. Miller ip->ino_table = kzalloc((sizeof(struct ino_blob) * 17800a625fd2SDavid S. Miller ip->num_intrs), 17810a625fd2SDavid S. Miller GFP_KERNEL); 17820a625fd2SDavid S. Miller if (!ip->ino_table) 17830a625fd2SDavid S. Miller return -ENOMEM; 17840a625fd2SDavid S. Miller 17850a625fd2SDavid S. Miller for (i = 0; i < ip->num_intrs; i++) { 17860a625fd2SDavid S. Miller struct ino_blob *b = &ip->ino_table[i]; 1787eb7caf35SDavid S. Miller b->intr = i + 1; 17880a625fd2SDavid S. Miller b->ino = ino[i]; 17890a625fd2SDavid S. Miller } 17900a625fd2SDavid S. Miller 17910a625fd2SDavid S. Miller return 0; 17920a625fd2SDavid S. Miller } 17930a625fd2SDavid S. Miller 179449cfe4dbSGreg Kroah-Hartman static int grab_mdesc_irq_props(struct mdesc_handle *mdesc, 17952dc11581SGrant Likely struct platform_device *dev, 17960a625fd2SDavid S. Miller struct spu_mdesc_info *ip, 17970a625fd2SDavid S. Miller const char *node_name) 17980a625fd2SDavid S. Miller { 1799*ee174e26SRob Herring u64 node, reg; 18000a625fd2SDavid S. Miller 1801*ee174e26SRob Herring if (of_property_read_reg(dev->dev.of_node, 0, ®, NULL) < 0) 18020a625fd2SDavid S. Miller return -ENODEV; 18030a625fd2SDavid S. Miller 18040a625fd2SDavid S. Miller mdesc_for_each_node_by_name(mdesc, node, "virtual-device") { 18050a625fd2SDavid S. Miller const char *name; 18060a625fd2SDavid S. Miller const u64 *chdl; 18070a625fd2SDavid S. Miller 18080a625fd2SDavid S. Miller name = mdesc_get_property(mdesc, node, "name", NULL); 18090a625fd2SDavid S. Miller if (!name || strcmp(name, node_name)) 18100a625fd2SDavid S. Miller continue; 18110a625fd2SDavid S. Miller chdl = mdesc_get_property(mdesc, node, "cfg-handle", NULL); 1812*ee174e26SRob Herring if (!chdl || (*chdl != reg)) 18130a625fd2SDavid S. Miller continue; 18140a625fd2SDavid S. Miller ip->cfg_handle = *chdl; 18150a625fd2SDavid S. Miller return get_irq_props(mdesc, node, ip); 18160a625fd2SDavid S. Miller } 18170a625fd2SDavid S. Miller 18180a625fd2SDavid S. Miller return -ENODEV; 18190a625fd2SDavid S. Miller } 18200a625fd2SDavid S. Miller 18210a625fd2SDavid S. Miller static unsigned long n2_spu_hvapi_major; 18220a625fd2SDavid S. Miller static unsigned long n2_spu_hvapi_minor; 18230a625fd2SDavid S. Miller 182449cfe4dbSGreg Kroah-Hartman static int n2_spu_hvapi_register(void) 18250a625fd2SDavid S. Miller { 18260a625fd2SDavid S. Miller int err; 18270a625fd2SDavid S. Miller 18280a625fd2SDavid S. Miller n2_spu_hvapi_major = 2; 18290a625fd2SDavid S. Miller n2_spu_hvapi_minor = 0; 18300a625fd2SDavid S. Miller 18310a625fd2SDavid S. Miller err = sun4v_hvapi_register(HV_GRP_NCS, 18320a625fd2SDavid S. Miller n2_spu_hvapi_major, 18330a625fd2SDavid S. Miller &n2_spu_hvapi_minor); 18340a625fd2SDavid S. Miller 18350a625fd2SDavid S. Miller if (!err) 18360a625fd2SDavid S. Miller pr_info("Registered NCS HVAPI version %lu.%lu\n", 18370a625fd2SDavid S. Miller n2_spu_hvapi_major, 18380a625fd2SDavid S. Miller n2_spu_hvapi_minor); 18390a625fd2SDavid S. Miller 18400a625fd2SDavid S. Miller return err; 18410a625fd2SDavid S. Miller } 18420a625fd2SDavid S. Miller 18430a625fd2SDavid S. Miller static void n2_spu_hvapi_unregister(void) 18440a625fd2SDavid S. Miller { 18450a625fd2SDavid S. Miller sun4v_hvapi_unregister(HV_GRP_NCS); 18460a625fd2SDavid S. Miller } 18470a625fd2SDavid S. Miller 18480a625fd2SDavid S. Miller static int global_ref; 18490a625fd2SDavid S. Miller 185049cfe4dbSGreg Kroah-Hartman static int grab_global_resources(void) 18510a625fd2SDavid S. Miller { 18520a625fd2SDavid S. Miller int err = 0; 18530a625fd2SDavid S. Miller 18540a625fd2SDavid S. Miller mutex_lock(&spu_lock); 18550a625fd2SDavid S. Miller 18560a625fd2SDavid S. Miller if (global_ref++) 18570a625fd2SDavid S. Miller goto out; 18580a625fd2SDavid S. Miller 18590a625fd2SDavid S. Miller err = n2_spu_hvapi_register(); 18600a625fd2SDavid S. Miller if (err) 18610a625fd2SDavid S. Miller goto out; 18620a625fd2SDavid S. Miller 18630a625fd2SDavid S. Miller err = queue_cache_init(); 18640a625fd2SDavid S. Miller if (err) 18650a625fd2SDavid S. Miller goto out_hvapi_release; 18660a625fd2SDavid S. Miller 18670a625fd2SDavid S. Miller err = -ENOMEM; 18686396bb22SKees Cook cpu_to_cwq = kcalloc(NR_CPUS, sizeof(struct spu_queue *), 18690a625fd2SDavid S. Miller GFP_KERNEL); 18700a625fd2SDavid S. Miller if (!cpu_to_cwq) 18710a625fd2SDavid S. Miller goto out_queue_cache_destroy; 18720a625fd2SDavid S. Miller 18736396bb22SKees Cook cpu_to_mau = kcalloc(NR_CPUS, sizeof(struct spu_queue *), 18740a625fd2SDavid S. Miller GFP_KERNEL); 18750a625fd2SDavid S. Miller if (!cpu_to_mau) 18760a625fd2SDavid S. Miller goto out_free_cwq_table; 18770a625fd2SDavid S. Miller 18780a625fd2SDavid S. Miller err = 0; 18790a625fd2SDavid S. Miller 18800a625fd2SDavid S. Miller out: 18810a625fd2SDavid S. Miller if (err) 18820a625fd2SDavid S. Miller global_ref--; 18830a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 18840a625fd2SDavid S. Miller return err; 18850a625fd2SDavid S. Miller 18860a625fd2SDavid S. Miller out_free_cwq_table: 18870a625fd2SDavid S. Miller kfree(cpu_to_cwq); 18880a625fd2SDavid S. Miller cpu_to_cwq = NULL; 18890a625fd2SDavid S. Miller 18900a625fd2SDavid S. Miller out_queue_cache_destroy: 18910a625fd2SDavid S. Miller queue_cache_destroy(); 18920a625fd2SDavid S. Miller 18930a625fd2SDavid S. Miller out_hvapi_release: 18940a625fd2SDavid S. Miller n2_spu_hvapi_unregister(); 18950a625fd2SDavid S. Miller goto out; 18960a625fd2SDavid S. Miller } 18970a625fd2SDavid S. Miller 18980a625fd2SDavid S. Miller static void release_global_resources(void) 18990a625fd2SDavid S. Miller { 19000a625fd2SDavid S. Miller mutex_lock(&spu_lock); 19010a625fd2SDavid S. Miller if (!--global_ref) { 19020a625fd2SDavid S. Miller kfree(cpu_to_cwq); 19030a625fd2SDavid S. Miller cpu_to_cwq = NULL; 19040a625fd2SDavid S. Miller 19050a625fd2SDavid S. Miller kfree(cpu_to_mau); 19060a625fd2SDavid S. Miller cpu_to_mau = NULL; 19070a625fd2SDavid S. Miller 19080a625fd2SDavid S. Miller queue_cache_destroy(); 19090a625fd2SDavid S. Miller n2_spu_hvapi_unregister(); 19100a625fd2SDavid S. Miller } 19110a625fd2SDavid S. Miller mutex_unlock(&spu_lock); 19120a625fd2SDavid S. Miller } 19130a625fd2SDavid S. Miller 191449cfe4dbSGreg Kroah-Hartman static struct n2_crypto *alloc_n2cp(void) 19150a625fd2SDavid S. Miller { 19160a625fd2SDavid S. Miller struct n2_crypto *np = kzalloc(sizeof(struct n2_crypto), GFP_KERNEL); 19170a625fd2SDavid S. Miller 19180a625fd2SDavid S. Miller if (np) 19190a625fd2SDavid S. Miller INIT_LIST_HEAD(&np->cwq_list); 19200a625fd2SDavid S. Miller 19210a625fd2SDavid S. Miller return np; 19220a625fd2SDavid S. Miller } 19230a625fd2SDavid S. Miller 19240a625fd2SDavid S. Miller static void free_n2cp(struct n2_crypto *np) 19250a625fd2SDavid S. Miller { 19260a625fd2SDavid S. Miller kfree(np->cwq_info.ino_table); 19270a625fd2SDavid S. Miller np->cwq_info.ino_table = NULL; 19280a625fd2SDavid S. Miller 19290a625fd2SDavid S. Miller kfree(np); 19300a625fd2SDavid S. Miller } 19310a625fd2SDavid S. Miller 193249cfe4dbSGreg Kroah-Hartman static void n2_spu_driver_version(void) 19330a625fd2SDavid S. Miller { 19340a625fd2SDavid S. Miller static int n2_spu_version_printed; 19350a625fd2SDavid S. Miller 19360a625fd2SDavid S. Miller if (n2_spu_version_printed++ == 0) 19370a625fd2SDavid S. Miller pr_info("%s", version); 19380a625fd2SDavid S. Miller } 19390a625fd2SDavid S. Miller 194049cfe4dbSGreg Kroah-Hartman static int n2_crypto_probe(struct platform_device *dev) 19410a625fd2SDavid S. Miller { 19420a625fd2SDavid S. Miller struct mdesc_handle *mdesc; 19430a625fd2SDavid S. Miller struct n2_crypto *np; 19440a625fd2SDavid S. Miller int err; 19450a625fd2SDavid S. Miller 19460a625fd2SDavid S. Miller n2_spu_driver_version(); 19470a625fd2SDavid S. Miller 1948b2e870f2SRob Herring pr_info("Found N2CP at %pOF\n", dev->dev.of_node); 19490a625fd2SDavid S. Miller 19500a625fd2SDavid S. Miller np = alloc_n2cp(); 19510a625fd2SDavid S. Miller if (!np) { 1952b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to allocate n2cp.\n", 1953b2e870f2SRob Herring dev->dev.of_node); 19540a625fd2SDavid S. Miller return -ENOMEM; 19550a625fd2SDavid S. Miller } 19560a625fd2SDavid S. Miller 19570a625fd2SDavid S. Miller err = grab_global_resources(); 19580a625fd2SDavid S. Miller if (err) { 1959b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", 1960b2e870f2SRob Herring dev->dev.of_node); 19610a625fd2SDavid S. Miller goto out_free_n2cp; 19620a625fd2SDavid S. Miller } 19630a625fd2SDavid S. Miller 19640a625fd2SDavid S. Miller mdesc = mdesc_grab(); 19650a625fd2SDavid S. Miller 19660a625fd2SDavid S. Miller if (!mdesc) { 1967b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", 1968b2e870f2SRob Herring dev->dev.of_node); 19690a625fd2SDavid S. Miller err = -ENODEV; 19700a625fd2SDavid S. Miller goto out_free_global; 19710a625fd2SDavid S. Miller } 19720a625fd2SDavid S. Miller err = grab_mdesc_irq_props(mdesc, dev, &np->cwq_info, "n2cp"); 19730a625fd2SDavid S. Miller if (err) { 1974b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", 1975b2e870f2SRob Herring dev->dev.of_node); 19760a625fd2SDavid S. Miller mdesc_release(mdesc); 19770a625fd2SDavid S. Miller goto out_free_global; 19780a625fd2SDavid S. Miller } 19790a625fd2SDavid S. Miller 19800a625fd2SDavid S. Miller err = spu_mdesc_scan(mdesc, dev, &np->cwq_info, &np->cwq_list, 19810a625fd2SDavid S. Miller "cwq", HV_NCS_QTYPE_CWQ, cwq_intr, 19820a625fd2SDavid S. Miller cpu_to_cwq); 19830a625fd2SDavid S. Miller mdesc_release(mdesc); 19840a625fd2SDavid S. Miller 19850a625fd2SDavid S. Miller if (err) { 1986b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: CWQ MDESC scan failed.\n", 1987b2e870f2SRob Herring dev->dev.of_node); 19880a625fd2SDavid S. Miller goto out_free_global; 19890a625fd2SDavid S. Miller } 19900a625fd2SDavid S. Miller 19910a625fd2SDavid S. Miller err = n2_register_algs(); 19920a625fd2SDavid S. Miller if (err) { 1993b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to register algorithms.\n", 1994b2e870f2SRob Herring dev->dev.of_node); 19950a625fd2SDavid S. Miller goto out_free_spu_list; 19960a625fd2SDavid S. Miller } 19970a625fd2SDavid S. Miller 19980a625fd2SDavid S. Miller dev_set_drvdata(&dev->dev, np); 19990a625fd2SDavid S. Miller 20000a625fd2SDavid S. Miller return 0; 20010a625fd2SDavid S. Miller 20020a625fd2SDavid S. Miller out_free_spu_list: 20030a625fd2SDavid S. Miller spu_list_destroy(&np->cwq_list); 20040a625fd2SDavid S. Miller 20050a625fd2SDavid S. Miller out_free_global: 20060a625fd2SDavid S. Miller release_global_resources(); 20070a625fd2SDavid S. Miller 20080a625fd2SDavid S. Miller out_free_n2cp: 20090a625fd2SDavid S. Miller free_n2cp(np); 20100a625fd2SDavid S. Miller 20110a625fd2SDavid S. Miller return err; 20120a625fd2SDavid S. Miller } 20130a625fd2SDavid S. Miller 201449cfe4dbSGreg Kroah-Hartman static int n2_crypto_remove(struct platform_device *dev) 20150a625fd2SDavid S. Miller { 20160a625fd2SDavid S. Miller struct n2_crypto *np = dev_get_drvdata(&dev->dev); 20170a625fd2SDavid S. Miller 20180a625fd2SDavid S. Miller n2_unregister_algs(); 20190a625fd2SDavid S. Miller 20200a625fd2SDavid S. Miller spu_list_destroy(&np->cwq_list); 20210a625fd2SDavid S. Miller 20220a625fd2SDavid S. Miller release_global_resources(); 20230a625fd2SDavid S. Miller 20240a625fd2SDavid S. Miller free_n2cp(np); 20250a625fd2SDavid S. Miller 20260a625fd2SDavid S. Miller return 0; 20270a625fd2SDavid S. Miller } 20280a625fd2SDavid S. Miller 202949cfe4dbSGreg Kroah-Hartman static struct n2_mau *alloc_ncp(void) 20300a625fd2SDavid S. Miller { 20310a625fd2SDavid S. Miller struct n2_mau *mp = kzalloc(sizeof(struct n2_mau), GFP_KERNEL); 20320a625fd2SDavid S. Miller 20330a625fd2SDavid S. Miller if (mp) 20340a625fd2SDavid S. Miller INIT_LIST_HEAD(&mp->mau_list); 20350a625fd2SDavid S. Miller 20360a625fd2SDavid S. Miller return mp; 20370a625fd2SDavid S. Miller } 20380a625fd2SDavid S. Miller 20390a625fd2SDavid S. Miller static void free_ncp(struct n2_mau *mp) 20400a625fd2SDavid S. Miller { 20410a625fd2SDavid S. Miller kfree(mp->mau_info.ino_table); 20420a625fd2SDavid S. Miller mp->mau_info.ino_table = NULL; 20430a625fd2SDavid S. Miller 20440a625fd2SDavid S. Miller kfree(mp); 20450a625fd2SDavid S. Miller } 20460a625fd2SDavid S. Miller 204749cfe4dbSGreg Kroah-Hartman static int n2_mau_probe(struct platform_device *dev) 20480a625fd2SDavid S. Miller { 20490a625fd2SDavid S. Miller struct mdesc_handle *mdesc; 20500a625fd2SDavid S. Miller struct n2_mau *mp; 20510a625fd2SDavid S. Miller int err; 20520a625fd2SDavid S. Miller 20530a625fd2SDavid S. Miller n2_spu_driver_version(); 20540a625fd2SDavid S. Miller 2055b2e870f2SRob Herring pr_info("Found NCP at %pOF\n", dev->dev.of_node); 20560a625fd2SDavid S. Miller 20570a625fd2SDavid S. Miller mp = alloc_ncp(); 20580a625fd2SDavid S. Miller if (!mp) { 2059b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to allocate ncp.\n", 2060b2e870f2SRob Herring dev->dev.of_node); 20610a625fd2SDavid S. Miller return -ENOMEM; 20620a625fd2SDavid S. Miller } 20630a625fd2SDavid S. Miller 20640a625fd2SDavid S. Miller err = grab_global_resources(); 20650a625fd2SDavid S. Miller if (err) { 2066b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n", 2067b2e870f2SRob Herring dev->dev.of_node); 20680a625fd2SDavid S. Miller goto out_free_ncp; 20690a625fd2SDavid S. Miller } 20700a625fd2SDavid S. Miller 20710a625fd2SDavid S. Miller mdesc = mdesc_grab(); 20720a625fd2SDavid S. Miller 20730a625fd2SDavid S. Miller if (!mdesc) { 2074b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n", 2075b2e870f2SRob Herring dev->dev.of_node); 20760a625fd2SDavid S. Miller err = -ENODEV; 20770a625fd2SDavid S. Miller goto out_free_global; 20780a625fd2SDavid S. Miller } 20790a625fd2SDavid S. Miller 20800a625fd2SDavid S. Miller err = grab_mdesc_irq_props(mdesc, dev, &mp->mau_info, "ncp"); 20810a625fd2SDavid S. Miller if (err) { 2082b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n", 2083b2e870f2SRob Herring dev->dev.of_node); 20840a625fd2SDavid S. Miller mdesc_release(mdesc); 20850a625fd2SDavid S. Miller goto out_free_global; 20860a625fd2SDavid S. Miller } 20870a625fd2SDavid S. Miller 20880a625fd2SDavid S. Miller err = spu_mdesc_scan(mdesc, dev, &mp->mau_info, &mp->mau_list, 20890a625fd2SDavid S. Miller "mau", HV_NCS_QTYPE_MAU, mau_intr, 20900a625fd2SDavid S. Miller cpu_to_mau); 20910a625fd2SDavid S. Miller mdesc_release(mdesc); 20920a625fd2SDavid S. Miller 20930a625fd2SDavid S. Miller if (err) { 2094b2e870f2SRob Herring dev_err(&dev->dev, "%pOF: MAU MDESC scan failed.\n", 2095b2e870f2SRob Herring dev->dev.of_node); 20960a625fd2SDavid S. Miller goto out_free_global; 20970a625fd2SDavid S. Miller } 20980a625fd2SDavid S. Miller 20990a625fd2SDavid S. Miller dev_set_drvdata(&dev->dev, mp); 21000a625fd2SDavid S. Miller 21010a625fd2SDavid S. Miller return 0; 21020a625fd2SDavid S. Miller 21030a625fd2SDavid S. Miller out_free_global: 21040a625fd2SDavid S. Miller release_global_resources(); 21050a625fd2SDavid S. Miller 21060a625fd2SDavid S. Miller out_free_ncp: 21070a625fd2SDavid S. Miller free_ncp(mp); 21080a625fd2SDavid S. Miller 21090a625fd2SDavid S. Miller return err; 21100a625fd2SDavid S. Miller } 21110a625fd2SDavid S. Miller 211249cfe4dbSGreg Kroah-Hartman static int n2_mau_remove(struct platform_device *dev) 21130a625fd2SDavid S. Miller { 21140a625fd2SDavid S. Miller struct n2_mau *mp = dev_get_drvdata(&dev->dev); 21150a625fd2SDavid S. Miller 21160a625fd2SDavid S. Miller spu_list_destroy(&mp->mau_list); 21170a625fd2SDavid S. Miller 21180a625fd2SDavid S. Miller release_global_resources(); 21190a625fd2SDavid S. Miller 21200a625fd2SDavid S. Miller free_ncp(mp); 21210a625fd2SDavid S. Miller 21220a625fd2SDavid S. Miller return 0; 21230a625fd2SDavid S. Miller } 21240a625fd2SDavid S. Miller 21254914b90bSArvind Yadav static const struct of_device_id n2_crypto_match[] = { 21260a625fd2SDavid S. Miller { 21270a625fd2SDavid S. Miller .name = "n2cp", 21280a625fd2SDavid S. Miller .compatible = "SUNW,n2-cwq", 21290a625fd2SDavid S. Miller }, 21300a625fd2SDavid S. Miller { 21310a625fd2SDavid S. Miller .name = "n2cp", 21320a625fd2SDavid S. Miller .compatible = "SUNW,vf-cwq", 21330a625fd2SDavid S. Miller }, 2134eb7caf35SDavid S. Miller { 2135eb7caf35SDavid S. Miller .name = "n2cp", 2136eb7caf35SDavid S. Miller .compatible = "SUNW,kt-cwq", 2137eb7caf35SDavid S. Miller }, 21380a625fd2SDavid S. Miller {}, 21390a625fd2SDavid S. Miller }; 21400a625fd2SDavid S. Miller 21410a625fd2SDavid S. Miller MODULE_DEVICE_TABLE(of, n2_crypto_match); 21420a625fd2SDavid S. Miller 21434ebb24f7SGrant Likely static struct platform_driver n2_crypto_driver = { 2144ff6c7341SDavid S. Miller .driver = { 21450a625fd2SDavid S. Miller .name = "n2cp", 2146ff6c7341SDavid S. Miller .of_match_table = n2_crypto_match, 2147ff6c7341SDavid S. Miller }, 21480a625fd2SDavid S. Miller .probe = n2_crypto_probe, 214949cfe4dbSGreg Kroah-Hartman .remove = n2_crypto_remove, 21500a625fd2SDavid S. Miller }; 21510a625fd2SDavid S. Miller 21524914b90bSArvind Yadav static const struct of_device_id n2_mau_match[] = { 21530a625fd2SDavid S. Miller { 21540a625fd2SDavid S. Miller .name = "ncp", 21550a625fd2SDavid S. Miller .compatible = "SUNW,n2-mau", 21560a625fd2SDavid S. Miller }, 21570a625fd2SDavid S. Miller { 21580a625fd2SDavid S. Miller .name = "ncp", 21590a625fd2SDavid S. Miller .compatible = "SUNW,vf-mau", 21600a625fd2SDavid S. Miller }, 2161eb7caf35SDavid S. Miller { 2162eb7caf35SDavid S. Miller .name = "ncp", 2163eb7caf35SDavid S. Miller .compatible = "SUNW,kt-mau", 2164eb7caf35SDavid S. Miller }, 21650a625fd2SDavid S. Miller {}, 21660a625fd2SDavid S. Miller }; 21670a625fd2SDavid S. Miller 21680a625fd2SDavid S. Miller MODULE_DEVICE_TABLE(of, n2_mau_match); 21690a625fd2SDavid S. Miller 21704ebb24f7SGrant Likely static struct platform_driver n2_mau_driver = { 2171ff6c7341SDavid S. Miller .driver = { 21720a625fd2SDavid S. Miller .name = "ncp", 2173ff6c7341SDavid S. Miller .of_match_table = n2_mau_match, 2174ff6c7341SDavid S. Miller }, 21750a625fd2SDavid S. Miller .probe = n2_mau_probe, 217649cfe4dbSGreg Kroah-Hartman .remove = n2_mau_remove, 21770a625fd2SDavid S. Miller }; 21780a625fd2SDavid S. Miller 2179a103a75aSThierry Reding static struct platform_driver * const drivers[] = { 2180a103a75aSThierry Reding &n2_crypto_driver, 2181a103a75aSThierry Reding &n2_mau_driver, 2182a103a75aSThierry Reding }; 2183a103a75aSThierry Reding 21840a625fd2SDavid S. Miller static int __init n2_init(void) 21850a625fd2SDavid S. Miller { 2186a103a75aSThierry Reding return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); 21870a625fd2SDavid S. Miller } 21880a625fd2SDavid S. Miller 21890a625fd2SDavid S. Miller static void __exit n2_exit(void) 21900a625fd2SDavid S. Miller { 2191a103a75aSThierry Reding platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); 21920a625fd2SDavid S. Miller } 21930a625fd2SDavid S. Miller 21940a625fd2SDavid S. Miller module_init(n2_init); 21950a625fd2SDavid S. Miller module_exit(n2_exit); 2196