diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 0a9cdd31cbd9f..19ab145f912ed 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -198,27 +198,10 @@ config S390_PRNG
 	  ANSI X9.17 standard. User-space programs access the
 	  pseudo-random-number device through the char device /dev/prandom.
 
 	  It is available as of z9.
 
-config CRYPTO_DEV_NIAGARA2
-	tristate "Niagara2 Stream Processing Unit driver"
-	select CRYPTO_LIB_DES
-	select CRYPTO_SKCIPHER
-	select CRYPTO_HASH
-	select CRYPTO_MD5
-	select CRYPTO_SHA1
-	select CRYPTO_SHA256
-	depends on SPARC64
-	help
-	  Each core of a Niagara2 processor contains a Stream
-	  Processing Unit, which itself contains several cryptographic
-	  sub-units.  One set provides the Modular Arithmetic Unit,
-	  used for SSL offload.  The other set provides the Cipher
-	  Group, which can perform encryption, decryption, hashing,
-	  checksumming, and raw copies.
-
 config CRYPTO_DEV_SL3516
 	tristate "Storlink SL3516 crypto offloader"
 	depends on ARCH_GEMINI || COMPILE_TEST
 	depends on HAS_IOMEM && PM
 	select CRYPTO_SKCIPHER
diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
index ad4ccef67d124..fef18ffdb1284 100644
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -19,12 +19,10 @@ obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_COMMON) += caam/
 obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
 obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
 obj-$(CONFIG_CRYPTO_DEV_IMGTEC_HASH) += img-hash.o
 obj-$(CONFIG_CRYPTO_DEV_MARVELL) += marvell/
 obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o
-obj-$(CONFIG_CRYPTO_DEV_NIAGARA2) += n2_crypto.o
-n2_crypto-y := n2_core.o n2_asm.o
 obj-$(CONFIG_CRYPTO_DEV_NX) += nx/
 obj-$(CONFIG_CRYPTO_DEV_OMAP) += omap-crypto.o
 obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes-driver.o
 omap-aes-driver-objs := omap-aes.o omap-aes-gcm.o
 obj-$(CONFIG_CRYPTO_DEV_OMAP_DES) += omap-des.o
diff --git a/drivers/crypto/n2_asm.S b/drivers/crypto/n2_asm.S
deleted file mode 100644
index 9a67dbf340f45..0000000000000
--- a/drivers/crypto/n2_asm.S
+++ /dev/null
@@ -1,96 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* n2_asm.S: Hypervisor calls for NCS support.
- *
- * Copyright (C) 2009 David S. Miller <davem@davemloft.net>
- */
-
-#include <linux/linkage.h>
-#include <asm/hypervisor.h>
-#include "n2_core.h"
-
-	/* o0: queue type
-	 * o1: RA of queue
-	 * o2: num entries in queue
-	 * o3: address of queue handle return
-	 */
-ENTRY(sun4v_ncs_qconf)
-	mov	HV_FAST_NCS_QCONF, %o5
-	ta	HV_FAST_TRAP
-	stx	%o1, [%o3]
-	retl
-	 nop
-ENDPROC(sun4v_ncs_qconf)
-
-	/* %o0: queue handle
-	 * %o1: address of queue type return
-	 * %o2: address of queue base address return
-	 * %o3: address of queue num entries return
-	 */
-ENTRY(sun4v_ncs_qinfo)
-	mov	%o1, %g1
-	mov	%o2, %g2
-	mov	%o3, %g3
-	mov	HV_FAST_NCS_QINFO, %o5
-	ta	HV_FAST_TRAP
-	stx	%o1, [%g1]
-	stx	%o2, [%g2]
-	stx	%o3, [%g3]
-	retl
-	 nop
-ENDPROC(sun4v_ncs_qinfo)
-
-	/* %o0: queue handle
-	 * %o1: address of head offset return
-	 */
-ENTRY(sun4v_ncs_gethead)
-	mov	%o1, %o2
-	mov	HV_FAST_NCS_GETHEAD, %o5
-	ta	HV_FAST_TRAP
-	stx	%o1, [%o2]
-	retl
-	 nop
-ENDPROC(sun4v_ncs_gethead)
-
-	/* %o0: queue handle
-	 * %o1: address of tail offset return
-	 */
-ENTRY(sun4v_ncs_gettail)
-	mov	%o1, %o2
-	mov	HV_FAST_NCS_GETTAIL, %o5
-	ta	HV_FAST_TRAP
-	stx	%o1, [%o2]
-	retl
-	 nop
-ENDPROC(sun4v_ncs_gettail)
-
-	/* %o0: queue handle
-	 * %o1: new tail offset
-	 */
-ENTRY(sun4v_ncs_settail)
-	mov	HV_FAST_NCS_SETTAIL, %o5
-	ta	HV_FAST_TRAP
-	retl
-	 nop
-ENDPROC(sun4v_ncs_settail)
-
-	/* %o0: queue handle
-	 * %o1: address of devino return
-	 */
-ENTRY(sun4v_ncs_qhandle_to_devino)
-	mov	%o1, %o2
-	mov	HV_FAST_NCS_QHANDLE_TO_DEVINO, %o5
-	ta	HV_FAST_TRAP
-	stx	%o1, [%o2]
-	retl
-	 nop
-ENDPROC(sun4v_ncs_qhandle_to_devino)
-
-	/* %o0: queue handle
-	 * %o1: new head offset
-	 */
-ENTRY(sun4v_ncs_sethead_marker)
-	mov	HV_FAST_NCS_SETHEAD_MARKER, %o5
-	ta	HV_FAST_TRAP
-	retl
-	 nop
-ENDPROC(sun4v_ncs_sethead_marker)
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
deleted file mode 100644
index 14c302d2db79b..0000000000000
--- a/drivers/crypto/n2_core.c
+++ /dev/null
@@ -1,2168 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* n2_core.c: Niagara2 Stream Processing Unit (SPU) crypto support.
- *
- * Copyright (C) 2010, 2011 David S. Miller <davem@davemloft.net>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/cpumask.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/crypto.h>
-#include <crypto/md5.h>
-#include <crypto/sha1.h>
-#include <crypto/sha2.h>
-#include <crypto/aes.h>
-#include <crypto/internal/des.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-
-#include <crypto/internal/hash.h>
-#include <crypto/internal/skcipher.h>
-#include <crypto/scatterwalk.h>
-#include <crypto/algapi.h>
-
-#include <asm/hypervisor.h>
-#include <asm/mdesc.h>
-
-#include "n2_core.h"
-
-#define DRV_MODULE_NAME		"n2_crypto"
-#define DRV_MODULE_VERSION	"0.2"
-#define DRV_MODULE_RELDATE	"July 28, 2011"
-
-static const char version[] =
-	DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
-
-MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
-MODULE_DESCRIPTION("Niagara2 Crypto driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_MODULE_VERSION);
-
-#define N2_CRA_PRIORITY		200
-
-static DEFINE_MUTEX(spu_lock);
-
-struct spu_queue {
-	cpumask_t		sharing;
-	unsigned long		qhandle;
-
-	spinlock_t		lock;
-	u8			q_type;
-	void			*q;
-	unsigned long		head;
-	unsigned long		tail;
-	struct list_head	jobs;
-
-	unsigned long		devino;
-
-	char			irq_name[32];
-	unsigned int		irq;
-
-	struct list_head	list;
-};
-
-struct spu_qreg {
-	struct spu_queue	*queue;
-	unsigned long		type;
-};
-
-static struct spu_queue **cpu_to_cwq;
-static struct spu_queue **cpu_to_mau;
-
-static unsigned long spu_next_offset(struct spu_queue *q, unsigned long off)
-{
-	if (q->q_type == HV_NCS_QTYPE_MAU) {
-		off += MAU_ENTRY_SIZE;
-		if (off == (MAU_ENTRY_SIZE * MAU_NUM_ENTRIES))
-			off = 0;
-	} else {
-		off += CWQ_ENTRY_SIZE;
-		if (off == (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES))
-			off = 0;
-	}
-	return off;
-}
-
-struct n2_request_common {
-	struct list_head	entry;
-	unsigned int		offset;
-};
-#define OFFSET_NOT_RUNNING	(~(unsigned int)0)
-
-/* An async job request records the final tail value it used in
- * n2_request_common->offset, test to see if that offset is in
- * the range old_head, new_head, inclusive.
- */
-static inline bool job_finished(struct spu_queue *q, unsigned int offset,
-				unsigned long old_head, unsigned long new_head)
-{
-	if (old_head <= new_head) {
-		if (offset > old_head && offset <= new_head)
-			return true;
-	} else {
-		if (offset > old_head || offset <= new_head)
-			return true;
-	}
-	return false;
-}
-
-/* When the HEAD marker is unequal to the actual HEAD, we get
- * a virtual device INO interrupt.  We should process the
- * completed CWQ entries and adjust the HEAD marker to clear
- * the IRQ.
- */
-static irqreturn_t cwq_intr(int irq, void *dev_id)
-{
-	unsigned long off, new_head, hv_ret;
-	struct spu_queue *q = dev_id;
-
-	pr_err("CPU[%d]: Got CWQ interrupt for qhdl[%lx]\n",
-	       smp_processor_id(), q->qhandle);
-
-	spin_lock(&q->lock);
-
-	hv_ret = sun4v_ncs_gethead(q->qhandle, &new_head);
-
-	pr_err("CPU[%d]: CWQ gethead[%lx] hv_ret[%lu]\n",
-	       smp_processor_id(), new_head, hv_ret);
-
-	for (off = q->head; off != new_head; off = spu_next_offset(q, off)) {
-		/* XXX ... XXX */
-	}
-
-	hv_ret = sun4v_ncs_sethead_marker(q->qhandle, new_head);
-	if (hv_ret == HV_EOK)
-		q->head = new_head;
-
-	spin_unlock(&q->lock);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t mau_intr(int irq, void *dev_id)
-{
-	struct spu_queue *q = dev_id;
-	unsigned long head, hv_ret;
-
-	spin_lock(&q->lock);
-
-	pr_err("CPU[%d]: Got MAU interrupt for qhdl[%lx]\n",
-	       smp_processor_id(), q->qhandle);
-
-	hv_ret = sun4v_ncs_gethead(q->qhandle, &head);
-
-	pr_err("CPU[%d]: MAU gethead[%lx] hv_ret[%lu]\n",
-	       smp_processor_id(), head, hv_ret);
-
-	sun4v_ncs_sethead_marker(q->qhandle, head);
-
-	spin_unlock(&q->lock);
-
-	return IRQ_HANDLED;
-}
-
-static void *spu_queue_next(struct spu_queue *q, void *cur)
-{
-	return q->q + spu_next_offset(q, cur - q->q);
-}
-
-static int spu_queue_num_free(struct spu_queue *q)
-{
-	unsigned long head = q->head;
-	unsigned long tail = q->tail;
-	unsigned long end = (CWQ_ENTRY_SIZE * CWQ_NUM_ENTRIES);
-	unsigned long diff;
-
-	if (head > tail)
-		diff = head - tail;
-	else
-		diff = (end - tail) + head;
-
-	return (diff / CWQ_ENTRY_SIZE) - 1;
-}
-
-static void *spu_queue_alloc(struct spu_queue *q, int num_entries)
-{
-	int avail = spu_queue_num_free(q);
-
-	if (avail >= num_entries)
-		return q->q + q->tail;
-
-	return NULL;
-}
-
-static unsigned long spu_queue_submit(struct spu_queue *q, void *last)
-{
-	unsigned long hv_ret, new_tail;
-
-	new_tail = spu_next_offset(q, last - q->q);
-
-	hv_ret = sun4v_ncs_settail(q->qhandle, new_tail);
-	if (hv_ret == HV_EOK)
-		q->tail = new_tail;
-	return hv_ret;
-}
-
-static u64 control_word_base(unsigned int len, unsigned int hmac_key_len,
-			     int enc_type, int auth_type,
-			     unsigned int hash_len,
-			     bool sfas, bool sob, bool eob, bool encrypt,
-			     int opcode)
-{
-	u64 word = (len - 1) & CONTROL_LEN;
-
-	word |= ((u64) opcode << CONTROL_OPCODE_SHIFT);
-	word |= ((u64) enc_type << CONTROL_ENC_TYPE_SHIFT);
-	word |= ((u64) auth_type << CONTROL_AUTH_TYPE_SHIFT);
-	if (sfas)
-		word |= CONTROL_STORE_FINAL_AUTH_STATE;
-	if (sob)
-		word |= CONTROL_START_OF_BLOCK;
-	if (eob)
-		word |= CONTROL_END_OF_BLOCK;
-	if (encrypt)
-		word |= CONTROL_ENCRYPT;
-	if (hmac_key_len)
-		word |= ((u64) (hmac_key_len - 1)) << CONTROL_HMAC_KEY_LEN_SHIFT;
-	if (hash_len)
-		word |= ((u64) (hash_len - 1)) << CONTROL_HASH_LEN_SHIFT;
-
-	return word;
-}
-
-#if 0
-static inline bool n2_should_run_async(struct spu_queue *qp, int this_len)
-{
-	if (this_len >= 64 ||
-	    qp->head != qp->tail)
-		return true;
-	return false;
-}
-#endif
-
-struct n2_ahash_alg {
-	struct list_head	entry;
-	const u8		*hash_zero;
-	const u8		*hash_init;
-	u8			hw_op_hashsz;
-	u8			digest_size;
-	u8			auth_type;
-	u8			hmac_type;
-	struct ahash_alg	alg;
-};
-
-static inline struct n2_ahash_alg *n2_ahash_alg(struct crypto_tfm *tfm)
-{
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct ahash_alg *ahash_alg;
-
-	ahash_alg = container_of(alg, struct ahash_alg, halg.base);
-
-	return container_of(ahash_alg, struct n2_ahash_alg, alg);
-}
-
-struct n2_hmac_alg {
-	const char		*child_alg;
-	struct n2_ahash_alg	derived;
-};
-
-static inline struct n2_hmac_alg *n2_hmac_alg(struct crypto_tfm *tfm)
-{
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct ahash_alg *ahash_alg;
-
-	ahash_alg = container_of(alg, struct ahash_alg, halg.base);
-
-	return container_of(ahash_alg, struct n2_hmac_alg, derived.alg);
-}
-
-struct n2_hash_ctx {
-	struct crypto_ahash		*fallback_tfm;
-};
-
-#define N2_HASH_KEY_MAX			32 /* HW limit for all HMAC requests */
-
-struct n2_hmac_ctx {
-	struct n2_hash_ctx		base;
-
-	struct crypto_shash		*child_shash;
-
-	int				hash_key_len;
-	unsigned char			hash_key[N2_HASH_KEY_MAX];
-};
-
-struct n2_hash_req_ctx {
-	union {
-		struct md5_state	md5;
-		struct sha1_state	sha1;
-		struct sha256_state	sha256;
-	} u;
-
-	struct ahash_request		fallback_req;
-};
-
-static int n2_hash_async_init(struct ahash_request *req)
-{
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	return crypto_ahash_init(&rctx->fallback_req);
-}
-
-static int n2_hash_async_update(struct ahash_request *req)
-{
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.nbytes = req->nbytes;
-	rctx->fallback_req.src = req->src;
-
-	return crypto_ahash_update(&rctx->fallback_req);
-}
-
-static int n2_hash_async_final(struct ahash_request *req)
-{
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.result = req->result;
-
-	return crypto_ahash_final(&rctx->fallback_req);
-}
-
-static int n2_hash_async_finup(struct ahash_request *req)
-{
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.nbytes = req->nbytes;
-	rctx->fallback_req.src = req->src;
-	rctx->fallback_req.result = req->result;
-
-	return crypto_ahash_finup(&rctx->fallback_req);
-}
-
-static int n2_hash_async_noimport(struct ahash_request *req, const void *in)
-{
-	return -ENOSYS;
-}
-
-static int n2_hash_async_noexport(struct ahash_request *req, void *out)
-{
-	return -ENOSYS;
-}
-
-static int n2_hash_cra_init(struct crypto_tfm *tfm)
-{
-	const char *fallback_driver_name = crypto_tfm_alg_name(tfm);
-	struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash);
-	struct crypto_ahash *fallback_tfm;
-	int err;
-
-	fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0,
-					  CRYPTO_ALG_NEED_FALLBACK);
-	if (IS_ERR(fallback_tfm)) {
-		pr_warn("Fallback driver '%s' could not be loaded!\n",
-			fallback_driver_name);
-		err = PTR_ERR(fallback_tfm);
-		goto out;
-	}
-
-	crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) +
-					 crypto_ahash_reqsize(fallback_tfm)));
-
-	ctx->fallback_tfm = fallback_tfm;
-	return 0;
-
-out:
-	return err;
-}
-
-static void n2_hash_cra_exit(struct crypto_tfm *tfm)
-{
-	struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
-	struct n2_hash_ctx *ctx = crypto_ahash_ctx(ahash);
-
-	crypto_free_ahash(ctx->fallback_tfm);
-}
-
-static int n2_hmac_cra_init(struct crypto_tfm *tfm)
-{
-	const char *fallback_driver_name = crypto_tfm_alg_name(tfm);
-	struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
-	struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash);
-	struct n2_hmac_alg *n2alg = n2_hmac_alg(tfm);
-	struct crypto_ahash *fallback_tfm;
-	struct crypto_shash *child_shash;
-	int err;
-
-	fallback_tfm = crypto_alloc_ahash(fallback_driver_name, 0,
-					  CRYPTO_ALG_NEED_FALLBACK);
-	if (IS_ERR(fallback_tfm)) {
-		pr_warn("Fallback driver '%s' could not be loaded!\n",
-			fallback_driver_name);
-		err = PTR_ERR(fallback_tfm);
-		goto out;
-	}
-
-	child_shash = crypto_alloc_shash(n2alg->child_alg, 0, 0);
-	if (IS_ERR(child_shash)) {
-		pr_warn("Child shash '%s' could not be loaded!\n",
-			n2alg->child_alg);
-		err = PTR_ERR(child_shash);
-		goto out_free_fallback;
-	}
-
-	crypto_ahash_set_reqsize(ahash, (sizeof(struct n2_hash_req_ctx) +
-					 crypto_ahash_reqsize(fallback_tfm)));
-
-	ctx->child_shash = child_shash;
-	ctx->base.fallback_tfm = fallback_tfm;
-	return 0;
-
-out_free_fallback:
-	crypto_free_ahash(fallback_tfm);
-
-out:
-	return err;
-}
-
-static void n2_hmac_cra_exit(struct crypto_tfm *tfm)
-{
-	struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
-	struct n2_hmac_ctx *ctx = crypto_ahash_ctx(ahash);
-
-	crypto_free_ahash(ctx->base.fallback_tfm);
-	crypto_free_shash(ctx->child_shash);
-}
-
-static int n2_hmac_async_setkey(struct crypto_ahash *tfm, const u8 *key,
-				unsigned int keylen)
-{
-	struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm);
-	struct crypto_shash *child_shash = ctx->child_shash;
-	struct crypto_ahash *fallback_tfm;
-	int err, bs, ds;
-
-	fallback_tfm = ctx->base.fallback_tfm;
-	err = crypto_ahash_setkey(fallback_tfm, key, keylen);
-	if (err)
-		return err;
-
-	bs = crypto_shash_blocksize(child_shash);
-	ds = crypto_shash_digestsize(child_shash);
-	BUG_ON(ds > N2_HASH_KEY_MAX);
-	if (keylen > bs) {
-		err = crypto_shash_tfm_digest(child_shash, key, keylen,
-					      ctx->hash_key);
-		if (err)
-			return err;
-		keylen = ds;
-	} else if (keylen <= N2_HASH_KEY_MAX)
-		memcpy(ctx->hash_key, key, keylen);
-
-	ctx->hash_key_len = keylen;
-
-	return err;
-}
-
-static unsigned long wait_for_tail(struct spu_queue *qp)
-{
-	unsigned long head, hv_ret;
-
-	do {
-		hv_ret = sun4v_ncs_gethead(qp->qhandle, &head);
-		if (hv_ret != HV_EOK) {
-			pr_err("Hypervisor error on gethead\n");
-			break;
-		}
-		if (head == qp->tail) {
-			qp->head = head;
-			break;
-		}
-	} while (1);
-	return hv_ret;
-}
-
-static unsigned long submit_and_wait_for_tail(struct spu_queue *qp,
-					      struct cwq_initial_entry *ent)
-{
-	unsigned long hv_ret = spu_queue_submit(qp, ent);
-
-	if (hv_ret == HV_EOK)
-		hv_ret = wait_for_tail(qp);
-
-	return hv_ret;
-}
-
-static int n2_do_async_digest(struct ahash_request *req,
-			      unsigned int auth_type, unsigned int digest_size,
-			      unsigned int result_size, void *hash_loc,
-			      unsigned long auth_key, unsigned int auth_key_len)
-{
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct cwq_initial_entry *ent;
-	struct crypto_hash_walk walk;
-	struct spu_queue *qp;
-	unsigned long flags;
-	int err = -ENODEV;
-	int nbytes, cpu;
-
-	/* The total effective length of the operation may not
-	 * exceed 2^16.
-	 */
-	if (unlikely(req->nbytes > (1 << 16))) {
-		struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-		struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-		ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-		rctx->fallback_req.base.flags =
-			req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-		rctx->fallback_req.nbytes = req->nbytes;
-		rctx->fallback_req.src = req->src;
-		rctx->fallback_req.result = req->result;
-
-		return crypto_ahash_digest(&rctx->fallback_req);
-	}
-
-	nbytes = crypto_hash_walk_first(req, &walk);
-
-	cpu = get_cpu();
-	qp = cpu_to_cwq[cpu];
-	if (!qp)
-		goto out;
-
-	spin_lock_irqsave(&qp->lock, flags);
-
-	/* XXX can do better, improve this later by doing a by-hand scatterlist
-	 * XXX walk, etc.
-	 */
-	ent = qp->q + qp->tail;
-
-	ent->control = control_word_base(nbytes, auth_key_len, 0,
-					 auth_type, digest_size,
-					 false, true, false, false,
-					 OPCODE_INPLACE_BIT |
-					 OPCODE_AUTH_MAC);
-	ent->src_addr = __pa(walk.data);
-	ent->auth_key_addr = auth_key;
-	ent->auth_iv_addr = __pa(hash_loc);
-	ent->final_auth_state_addr = 0UL;
-	ent->enc_key_addr = 0UL;
-	ent->enc_iv_addr = 0UL;
-	ent->dest_addr = __pa(hash_loc);
-
-	nbytes = crypto_hash_walk_done(&walk, 0);
-	while (nbytes > 0) {
-		ent = spu_queue_next(qp, ent);
-
-		ent->control = (nbytes - 1);
-		ent->src_addr = __pa(walk.data);
-		ent->auth_key_addr = 0UL;
-		ent->auth_iv_addr = 0UL;
-		ent->final_auth_state_addr = 0UL;
-		ent->enc_key_addr = 0UL;
-		ent->enc_iv_addr = 0UL;
-		ent->dest_addr = 0UL;
-
-		nbytes = crypto_hash_walk_done(&walk, 0);
-	}
-	ent->control |= CONTROL_END_OF_BLOCK;
-
-	if (submit_and_wait_for_tail(qp, ent) != HV_EOK)
-		err = -EINVAL;
-	else
-		err = 0;
-
-	spin_unlock_irqrestore(&qp->lock, flags);
-
-	if (!err)
-		memcpy(req->result, hash_loc, result_size);
-out:
-	put_cpu();
-
-	return err;
-}
-
-static int n2_hash_async_digest(struct ahash_request *req)
-{
-	struct n2_ahash_alg *n2alg = n2_ahash_alg(req->base.tfm);
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	int ds;
-
-	ds = n2alg->digest_size;
-	if (unlikely(req->nbytes == 0)) {
-		memcpy(req->result, n2alg->hash_zero, ds);
-		return 0;
-	}
-	memcpy(&rctx->u, n2alg->hash_init, n2alg->hw_op_hashsz);
-
-	return n2_do_async_digest(req, n2alg->auth_type,
-				  n2alg->hw_op_hashsz, ds,
-				  &rctx->u, 0UL, 0);
-}
-
-static int n2_hmac_async_digest(struct ahash_request *req)
-{
-	struct n2_hmac_alg *n2alg = n2_hmac_alg(req->base.tfm);
-	struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct n2_hmac_ctx *ctx = crypto_ahash_ctx(tfm);
-	int ds;
-
-	ds = n2alg->derived.digest_size;
-	if (unlikely(req->nbytes == 0) ||
-	    unlikely(ctx->hash_key_len > N2_HASH_KEY_MAX)) {
-		struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
-		struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-
-		ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-		rctx->fallback_req.base.flags =
-			req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
-		rctx->fallback_req.nbytes = req->nbytes;
-		rctx->fallback_req.src = req->src;
-		rctx->fallback_req.result = req->result;
-
-		return crypto_ahash_digest(&rctx->fallback_req);
-	}
-	memcpy(&rctx->u, n2alg->derived.hash_init,
-	       n2alg->derived.hw_op_hashsz);
-
-	return n2_do_async_digest(req, n2alg->derived.hmac_type,
-				  n2alg->derived.hw_op_hashsz, ds,
-				  &rctx->u,
-				  __pa(&ctx->hash_key),
-				  ctx->hash_key_len);
-}
-
-struct n2_skcipher_context {
-	int			key_len;
-	int			enc_type;
-	union {
-		u8		aes[AES_MAX_KEY_SIZE];
-		u8		des[DES_KEY_SIZE];
-		u8		des3[3 * DES_KEY_SIZE];
-	} key;
-};
-
-#define N2_CHUNK_ARR_LEN	16
-
-struct n2_crypto_chunk {
-	struct list_head	entry;
-	unsigned long		iv_paddr : 44;
-	unsigned long		arr_len : 20;
-	unsigned long		dest_paddr;
-	unsigned long		dest_final;
-	struct {
-		unsigned long	src_paddr : 44;
-		unsigned long	src_len : 20;
-	} arr[N2_CHUNK_ARR_LEN];
-};
-
-struct n2_request_context {
-	struct skcipher_walk	walk;
-	struct list_head	chunk_list;
-	struct n2_crypto_chunk	chunk;
-	u8			temp_iv[16];
-};
-
-/* The SPU allows some level of flexibility for partial cipher blocks
- * being specified in a descriptor.
- *
- * It merely requires that every descriptor's length field is at least
- * as large as the cipher block size.  This means that a cipher block
- * can span at most 2 descriptors.  However, this does not allow a
- * partial block to span into the final descriptor as that would
- * violate the rule (since every descriptor's length must be at lest
- * the block size).  So, for example, assuming an 8 byte block size:
- *
- *	0xe --> 0xa --> 0x8
- *
- * is a valid length sequence, whereas:
- *
- *	0xe --> 0xb --> 0x7
- *
- * is not a valid sequence.
- */
-
-struct n2_skcipher_alg {
-	struct list_head	entry;
-	u8			enc_type;
-	struct skcipher_alg	skcipher;
-};
-
-static inline struct n2_skcipher_alg *n2_skcipher_alg(struct crypto_skcipher *tfm)
-{
-	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
-
-	return container_of(alg, struct n2_skcipher_alg, skcipher);
-}
-
-static int n2_aes_setkey(struct crypto_skcipher *skcipher, const u8 *key,
-			 unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
-	struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
-	struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
-
-	ctx->enc_type = (n2alg->enc_type & ENC_TYPE_CHAINING_MASK);
-
-	switch (keylen) {
-	case AES_KEYSIZE_128:
-		ctx->enc_type |= ENC_TYPE_ALG_AES128;
-		break;
-	case AES_KEYSIZE_192:
-		ctx->enc_type |= ENC_TYPE_ALG_AES192;
-		break;
-	case AES_KEYSIZE_256:
-		ctx->enc_type |= ENC_TYPE_ALG_AES256;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	ctx->key_len = keylen;
-	memcpy(ctx->key.aes, key, keylen);
-	return 0;
-}
-
-static int n2_des_setkey(struct crypto_skcipher *skcipher, const u8 *key,
-			 unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
-	struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
-	struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
-	int err;
-
-	err = verify_skcipher_des_key(skcipher, key);
-	if (err)
-		return err;
-
-	ctx->enc_type = n2alg->enc_type;
-
-	ctx->key_len = keylen;
-	memcpy(ctx->key.des, key, keylen);
-	return 0;
-}
-
-static int n2_3des_setkey(struct crypto_skcipher *skcipher, const u8 *key,
-			  unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher);
-	struct n2_skcipher_context *ctx = crypto_tfm_ctx(tfm);
-	struct n2_skcipher_alg *n2alg = n2_skcipher_alg(skcipher);
-	int err;
-
-	err = verify_skcipher_des3_key(skcipher, key);
-	if (err)
-		return err;
-
-	ctx->enc_type = n2alg->enc_type;
-
-	ctx->key_len = keylen;
-	memcpy(ctx->key.des3, key, keylen);
-	return 0;
-}
-
-static inline int skcipher_descriptor_len(int nbytes, unsigned int block_size)
-{
-	int this_len = nbytes;
-
-	this_len -= (nbytes & (block_size - 1));
-	return this_len > (1 << 16) ? (1 << 16) : this_len;
-}
-
-static int __n2_crypt_chunk(struct crypto_skcipher *skcipher,
-			    struct n2_crypto_chunk *cp,
-			    struct spu_queue *qp, bool encrypt)
-{
-	struct n2_skcipher_context *ctx = crypto_skcipher_ctx(skcipher);
-	struct cwq_initial_entry *ent;
-	bool in_place;
-	int i;
-
-	ent = spu_queue_alloc(qp, cp->arr_len);
-	if (!ent) {
-		pr_info("queue_alloc() of %d fails\n",
-			cp->arr_len);
-		return -EBUSY;
-	}
-
-	in_place = (cp->dest_paddr == cp->arr[0].src_paddr);
-
-	ent->control = control_word_base(cp->arr[0].src_len,
-					 0, ctx->enc_type, 0, 0,
-					 false, true, false, encrypt,
-					 OPCODE_ENCRYPT |
-					 (in_place ? OPCODE_INPLACE_BIT : 0));
-	ent->src_addr = cp->arr[0].src_paddr;
-	ent->auth_key_addr = 0UL;
-	ent->auth_iv_addr = 0UL;
-	ent->final_auth_state_addr = 0UL;
-	ent->enc_key_addr = __pa(&ctx->key);
-	ent->enc_iv_addr = cp->iv_paddr;
-	ent->dest_addr = (in_place ? 0UL : cp->dest_paddr);
-
-	for (i = 1; i < cp->arr_len; i++) {
-		ent = spu_queue_next(qp, ent);
-
-		ent->control = cp->arr[i].src_len - 1;
-		ent->src_addr = cp->arr[i].src_paddr;
-		ent->auth_key_addr = 0UL;
-		ent->auth_iv_addr = 0UL;
-		ent->final_auth_state_addr = 0UL;
-		ent->enc_key_addr = 0UL;
-		ent->enc_iv_addr = 0UL;
-		ent->dest_addr = 0UL;
-	}
-	ent->control |= CONTROL_END_OF_BLOCK;
-
-	return (spu_queue_submit(qp, ent) != HV_EOK) ? -EINVAL : 0;
-}
-
-static int n2_compute_chunks(struct skcipher_request *req)
-{
-	struct n2_request_context *rctx = skcipher_request_ctx(req);
-	struct skcipher_walk *walk = &rctx->walk;
-	struct n2_crypto_chunk *chunk;
-	unsigned long dest_prev;
-	unsigned int tot_len;
-	bool prev_in_place;
-	int err, nbytes;
-
-	err = skcipher_walk_async(walk, req);
-	if (err)
-		return err;
-
-	INIT_LIST_HEAD(&rctx->chunk_list);
-
-	chunk = &rctx->chunk;
-	INIT_LIST_HEAD(&chunk->entry);
-
-	chunk->iv_paddr = 0UL;
-	chunk->arr_len = 0;
-	chunk->dest_paddr = 0UL;
-
-	prev_in_place = false;
-	dest_prev = ~0UL;
-	tot_len = 0;
-
-	while ((nbytes = walk->nbytes) != 0) {
-		unsigned long dest_paddr, src_paddr;
-		bool in_place;
-		int this_len;
-
-		src_paddr = (page_to_phys(walk->src.phys.page) +
-			     walk->src.phys.offset);
-		dest_paddr = (page_to_phys(walk->dst.phys.page) +
-			      walk->dst.phys.offset);
-		in_place = (src_paddr == dest_paddr);
-		this_len = skcipher_descriptor_len(nbytes, walk->blocksize);
-
-		if (chunk->arr_len != 0) {
-			if (in_place != prev_in_place ||
-			    (!prev_in_place &&
-			     dest_paddr != dest_prev) ||
-			    chunk->arr_len == N2_CHUNK_ARR_LEN ||
-			    tot_len + this_len > (1 << 16)) {
-				chunk->dest_final = dest_prev;
-				list_add_tail(&chunk->entry,
-					      &rctx->chunk_list);
-				chunk = kzalloc(sizeof(*chunk), GFP_ATOMIC);
-				if (!chunk) {
-					err = -ENOMEM;
-					break;
-				}
-				INIT_LIST_HEAD(&chunk->entry);
-			}
-		}
-		if (chunk->arr_len == 0) {
-			chunk->dest_paddr = dest_paddr;
-			tot_len = 0;
-		}
-		chunk->arr[chunk->arr_len].src_paddr = src_paddr;
-		chunk->arr[chunk->arr_len].src_len = this_len;
-		chunk->arr_len++;
-
-		dest_prev = dest_paddr + this_len;
-		prev_in_place = in_place;
-		tot_len += this_len;
-
-		err = skcipher_walk_done(walk, nbytes - this_len);
-		if (err)
-			break;
-	}
-	if (!err && chunk->arr_len != 0) {
-		chunk->dest_final = dest_prev;
-		list_add_tail(&chunk->entry, &rctx->chunk_list);
-	}
-
-	return err;
-}
-
-static void n2_chunk_complete(struct skcipher_request *req, void *final_iv)
-{
-	struct n2_request_context *rctx = skcipher_request_ctx(req);
-	struct n2_crypto_chunk *c, *tmp;
-
-	if (final_iv)
-		memcpy(rctx->walk.iv, final_iv, rctx->walk.blocksize);
-
-	list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) {
-		list_del(&c->entry);
-		if (unlikely(c != &rctx->chunk))
-			kfree(c);
-	}
-
-}
-
-static int n2_do_ecb(struct skcipher_request *req, bool encrypt)
-{
-	struct n2_request_context *rctx = skcipher_request_ctx(req);
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
-	int err = n2_compute_chunks(req);
-	struct n2_crypto_chunk *c, *tmp;
-	unsigned long flags, hv_ret;
-	struct spu_queue *qp;
-
-	if (err)
-		return err;
-
-	qp = cpu_to_cwq[get_cpu()];
-	err = -ENODEV;
-	if (!qp)
-		goto out;
-
-	spin_lock_irqsave(&qp->lock, flags);
-
-	list_for_each_entry_safe(c, tmp, &rctx->chunk_list, entry) {
-		err = __n2_crypt_chunk(tfm, c, qp, encrypt);
-		if (err)
-			break;
-		list_del(&c->entry);
-		if (unlikely(c != &rctx->chunk))
-			kfree(c);
-	}
-	if (!err) {
-		hv_ret = wait_for_tail(qp);
-		if (hv_ret != HV_EOK)
-			err = -EINVAL;
-	}
-
-	spin_unlock_irqrestore(&qp->lock, flags);
-
-out:
-	put_cpu();
-
-	n2_chunk_complete(req, NULL);
-	return err;
-}
-
-static int n2_encrypt_ecb(struct skcipher_request *req)
-{
-	return n2_do_ecb(req, true);
-}
-
-static int n2_decrypt_ecb(struct skcipher_request *req)
-{
-	return n2_do_ecb(req, false);
-}
-
-static int n2_do_chaining(struct skcipher_request *req, bool encrypt)
-{
-	struct n2_request_context *rctx = skcipher_request_ctx(req);
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
-	unsigned long flags, hv_ret, iv_paddr;
-	int err = n2_compute_chunks(req);
-	struct n2_crypto_chunk *c, *tmp;
-	struct spu_queue *qp;
-	void *final_iv_addr;
-
-	final_iv_addr = NULL;
-
-	if (err)
-		return err;
-
-	qp = cpu_to_cwq[get_cpu()];
-	err = -ENODEV;
-	if (!qp)
-		goto out;
-
-	spin_lock_irqsave(&qp->lock, flags);
-
-	if (encrypt) {
-		iv_paddr = __pa(rctx->walk.iv);
-		list_for_each_entry_safe(c, tmp, &rctx->chunk_list,
-					 entry) {
-			c->iv_paddr = iv_paddr;
-			err = __n2_crypt_chunk(tfm, c, qp, true);
-			if (err)
-				break;
-			iv_paddr = c->dest_final - rctx->walk.blocksize;
-			list_del(&c->entry);
-			if (unlikely(c != &rctx->chunk))
-				kfree(c);
-		}
-		final_iv_addr = __va(iv_paddr);
-	} else {
-		list_for_each_entry_safe_reverse(c, tmp, &rctx->chunk_list,
-						 entry) {
-			if (c == &rctx->chunk) {
-				iv_paddr = __pa(rctx->walk.iv);
-			} else {
-				iv_paddr = (tmp->arr[tmp->arr_len-1].src_paddr +
-					    tmp->arr[tmp->arr_len-1].src_len -
-					    rctx->walk.blocksize);
-			}
-			if (!final_iv_addr) {
-				unsigned long pa;
-
-				pa = (c->arr[c->arr_len-1].src_paddr +
-				      c->arr[c->arr_len-1].src_len -
-				      rctx->walk.blocksize);
-				final_iv_addr = rctx->temp_iv;
-				memcpy(rctx->temp_iv, __va(pa),
-				       rctx->walk.blocksize);
-			}
-			c->iv_paddr = iv_paddr;
-			err = __n2_crypt_chunk(tfm, c, qp, false);
-			if (err)
-				break;
-			list_del(&c->entry);
-			if (unlikely(c != &rctx->chunk))
-				kfree(c);
-		}
-	}
-	if (!err) {
-		hv_ret = wait_for_tail(qp);
-		if (hv_ret != HV_EOK)
-			err = -EINVAL;
-	}
-
-	spin_unlock_irqrestore(&qp->lock, flags);
-
-out:
-	put_cpu();
-
-	n2_chunk_complete(req, err ? NULL : final_iv_addr);
-	return err;
-}
-
-static int n2_encrypt_chaining(struct skcipher_request *req)
-{
-	return n2_do_chaining(req, true);
-}
-
-static int n2_decrypt_chaining(struct skcipher_request *req)
-{
-	return n2_do_chaining(req, false);
-}
-
-struct n2_skcipher_tmpl {
-	const char		*name;
-	const char		*drv_name;
-	u8			block_size;
-	u8			enc_type;
-	struct skcipher_alg	skcipher;
-};
-
-static const struct n2_skcipher_tmpl skcipher_tmpls[] = {
-	/* DES: ECB CBC and CFB are supported */
-	{	.name		= "ecb(des)",
-		.drv_name	= "ecb-des",
-		.block_size	= DES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_DES |
-				   ENC_TYPE_CHAINING_ECB),
-		.skcipher	= {
-			.min_keysize	= DES_KEY_SIZE,
-			.max_keysize	= DES_KEY_SIZE,
-			.setkey		= n2_des_setkey,
-			.encrypt	= n2_encrypt_ecb,
-			.decrypt	= n2_decrypt_ecb,
-		},
-	},
-	{	.name		= "cbc(des)",
-		.drv_name	= "cbc-des",
-		.block_size	= DES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_DES |
-				   ENC_TYPE_CHAINING_CBC),
-		.skcipher	= {
-			.ivsize		= DES_BLOCK_SIZE,
-			.min_keysize	= DES_KEY_SIZE,
-			.max_keysize	= DES_KEY_SIZE,
-			.setkey		= n2_des_setkey,
-			.encrypt	= n2_encrypt_chaining,
-			.decrypt	= n2_decrypt_chaining,
-		},
-	},
-
-	/* 3DES: ECB CBC and CFB are supported */
-	{	.name		= "ecb(des3_ede)",
-		.drv_name	= "ecb-3des",
-		.block_size	= DES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_3DES |
-				   ENC_TYPE_CHAINING_ECB),
-		.skcipher	= {
-			.min_keysize	= 3 * DES_KEY_SIZE,
-			.max_keysize	= 3 * DES_KEY_SIZE,
-			.setkey		= n2_3des_setkey,
-			.encrypt	= n2_encrypt_ecb,
-			.decrypt	= n2_decrypt_ecb,
-		},
-	},
-	{	.name		= "cbc(des3_ede)",
-		.drv_name	= "cbc-3des",
-		.block_size	= DES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_3DES |
-				   ENC_TYPE_CHAINING_CBC),
-		.skcipher	= {
-			.ivsize		= DES_BLOCK_SIZE,
-			.min_keysize	= 3 * DES_KEY_SIZE,
-			.max_keysize	= 3 * DES_KEY_SIZE,
-			.setkey		= n2_3des_setkey,
-			.encrypt	= n2_encrypt_chaining,
-			.decrypt	= n2_decrypt_chaining,
-		},
-	},
-
-	/* AES: ECB CBC and CTR are supported */
-	{	.name		= "ecb(aes)",
-		.drv_name	= "ecb-aes",
-		.block_size	= AES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_AES128 |
-				   ENC_TYPE_CHAINING_ECB),
-		.skcipher	= {
-			.min_keysize	= AES_MIN_KEY_SIZE,
-			.max_keysize	= AES_MAX_KEY_SIZE,
-			.setkey		= n2_aes_setkey,
-			.encrypt	= n2_encrypt_ecb,
-			.decrypt	= n2_decrypt_ecb,
-		},
-	},
-	{	.name		= "cbc(aes)",
-		.drv_name	= "cbc-aes",
-		.block_size	= AES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_AES128 |
-				   ENC_TYPE_CHAINING_CBC),
-		.skcipher	= {
-			.ivsize		= AES_BLOCK_SIZE,
-			.min_keysize	= AES_MIN_KEY_SIZE,
-			.max_keysize	= AES_MAX_KEY_SIZE,
-			.setkey		= n2_aes_setkey,
-			.encrypt	= n2_encrypt_chaining,
-			.decrypt	= n2_decrypt_chaining,
-		},
-	},
-	{	.name		= "ctr(aes)",
-		.drv_name	= "ctr-aes",
-		.block_size	= AES_BLOCK_SIZE,
-		.enc_type	= (ENC_TYPE_ALG_AES128 |
-				   ENC_TYPE_CHAINING_COUNTER),
-		.skcipher	= {
-			.ivsize		= AES_BLOCK_SIZE,
-			.min_keysize	= AES_MIN_KEY_SIZE,
-			.max_keysize	= AES_MAX_KEY_SIZE,
-			.setkey		= n2_aes_setkey,
-			.encrypt	= n2_encrypt_chaining,
-			.decrypt	= n2_encrypt_chaining,
-		},
-	},
-
-};
-#define NUM_CIPHER_TMPLS ARRAY_SIZE(skcipher_tmpls)
-
-static LIST_HEAD(skcipher_algs);
-
-struct n2_hash_tmpl {
-	const char	*name;
-	const u8	*hash_zero;
-	const u8	*hash_init;
-	u8		hw_op_hashsz;
-	u8		digest_size;
-	u8		statesize;
-	u8		block_size;
-	u8		auth_type;
-	u8		hmac_type;
-};
-
-static const __le32 n2_md5_init[MD5_HASH_WORDS] = {
-	cpu_to_le32(MD5_H0),
-	cpu_to_le32(MD5_H1),
-	cpu_to_le32(MD5_H2),
-	cpu_to_le32(MD5_H3),
-};
-static const u32 n2_sha1_init[SHA1_DIGEST_SIZE / 4] = {
-	SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4,
-};
-static const u32 n2_sha256_init[SHA256_DIGEST_SIZE / 4] = {
-	SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3,
-	SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7,
-};
-static const u32 n2_sha224_init[SHA256_DIGEST_SIZE / 4] = {
-	SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3,
-	SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7,
-};
-
-static const struct n2_hash_tmpl hash_tmpls[] = {
-	{ .name		= "md5",
-	  .hash_zero	= md5_zero_message_hash,
-	  .hash_init	= (u8 *)n2_md5_init,
-	  .auth_type	= AUTH_TYPE_MD5,
-	  .hmac_type	= AUTH_TYPE_HMAC_MD5,
-	  .hw_op_hashsz	= MD5_DIGEST_SIZE,
-	  .digest_size	= MD5_DIGEST_SIZE,
-	  .statesize	= sizeof(struct md5_state),
-	  .block_size	= MD5_HMAC_BLOCK_SIZE },
-	{ .name		= "sha1",
-	  .hash_zero	= sha1_zero_message_hash,
-	  .hash_init	= (u8 *)n2_sha1_init,
-	  .auth_type	= AUTH_TYPE_SHA1,
-	  .hmac_type	= AUTH_TYPE_HMAC_SHA1,
-	  .hw_op_hashsz	= SHA1_DIGEST_SIZE,
-	  .digest_size	= SHA1_DIGEST_SIZE,
-	  .statesize	= sizeof(struct sha1_state),
-	  .block_size	= SHA1_BLOCK_SIZE },
-	{ .name		= "sha256",
-	  .hash_zero	= sha256_zero_message_hash,
-	  .hash_init	= (u8 *)n2_sha256_init,
-	  .auth_type	= AUTH_TYPE_SHA256,
-	  .hmac_type	= AUTH_TYPE_HMAC_SHA256,
-	  .hw_op_hashsz	= SHA256_DIGEST_SIZE,
-	  .digest_size	= SHA256_DIGEST_SIZE,
-	  .statesize	= sizeof(struct sha256_state),
-	  .block_size	= SHA256_BLOCK_SIZE },
-	{ .name		= "sha224",
-	  .hash_zero	= sha224_zero_message_hash,
-	  .hash_init	= (u8 *)n2_sha224_init,
-	  .auth_type	= AUTH_TYPE_SHA256,
-	  .hmac_type	= AUTH_TYPE_RESERVED,
-	  .hw_op_hashsz	= SHA256_DIGEST_SIZE,
-	  .digest_size	= SHA224_DIGEST_SIZE,
-	  .statesize	= sizeof(struct sha256_state),
-	  .block_size	= SHA224_BLOCK_SIZE },
-};
-#define NUM_HASH_TMPLS ARRAY_SIZE(hash_tmpls)
-
-static LIST_HEAD(ahash_algs);
-static LIST_HEAD(hmac_algs);
-
-static int algs_registered;
-
-static void __n2_unregister_algs(void)
-{
-	struct n2_skcipher_alg *skcipher, *skcipher_tmp;
-	struct n2_ahash_alg *alg, *alg_tmp;
-	struct n2_hmac_alg *hmac, *hmac_tmp;
-
-	list_for_each_entry_safe(skcipher, skcipher_tmp, &skcipher_algs, entry) {
-		crypto_unregister_skcipher(&skcipher->skcipher);
-		list_del(&skcipher->entry);
-		kfree(skcipher);
-	}
-	list_for_each_entry_safe(hmac, hmac_tmp, &hmac_algs, derived.entry) {
-		crypto_unregister_ahash(&hmac->derived.alg);
-		list_del(&hmac->derived.entry);
-		kfree(hmac);
-	}
-	list_for_each_entry_safe(alg, alg_tmp, &ahash_algs, entry) {
-		crypto_unregister_ahash(&alg->alg);
-		list_del(&alg->entry);
-		kfree(alg);
-	}
-}
-
-static int n2_skcipher_init_tfm(struct crypto_skcipher *tfm)
-{
-	crypto_skcipher_set_reqsize(tfm, sizeof(struct n2_request_context));
-	return 0;
-}
-
-static int __n2_register_one_skcipher(const struct n2_skcipher_tmpl *tmpl)
-{
-	struct n2_skcipher_alg *p = kzalloc(sizeof(*p), GFP_KERNEL);
-	struct skcipher_alg *alg;
-	int err;
-
-	if (!p)
-		return -ENOMEM;
-
-	alg = &p->skcipher;
-	*alg = tmpl->skcipher;
-
-	snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
-	snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->drv_name);
-	alg->base.cra_priority = N2_CRA_PRIORITY;
-	alg->base.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC |
-			      CRYPTO_ALG_ALLOCATES_MEMORY;
-	alg->base.cra_blocksize = tmpl->block_size;
-	p->enc_type = tmpl->enc_type;
-	alg->base.cra_ctxsize = sizeof(struct n2_skcipher_context);
-	alg->base.cra_module = THIS_MODULE;
-	alg->init = n2_skcipher_init_tfm;
-
-	list_add(&p->entry, &skcipher_algs);
-	err = crypto_register_skcipher(alg);
-	if (err) {
-		pr_err("%s alg registration failed\n", alg->base.cra_name);
-		list_del(&p->entry);
-		kfree(p);
-	} else {
-		pr_info("%s alg registered\n", alg->base.cra_name);
-	}
-	return err;
-}
-
-static int __n2_register_one_hmac(struct n2_ahash_alg *n2ahash)
-{
-	struct n2_hmac_alg *p = kzalloc(sizeof(*p), GFP_KERNEL);
-	struct ahash_alg *ahash;
-	struct crypto_alg *base;
-	int err;
-
-	if (!p)
-		return -ENOMEM;
-
-	p->child_alg = n2ahash->alg.halg.base.cra_name;
-	memcpy(&p->derived, n2ahash, sizeof(struct n2_ahash_alg));
-	INIT_LIST_HEAD(&p->derived.entry);
-
-	ahash = &p->derived.alg;
-	ahash->digest = n2_hmac_async_digest;
-	ahash->setkey = n2_hmac_async_setkey;
-
-	base = &ahash->halg.base;
-	err = -EINVAL;
-	if (snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)",
-		     p->child_alg) >= CRYPTO_MAX_ALG_NAME)
-		goto out_free_p;
-	if (snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "hmac-%s-n2",
-		     p->child_alg) >= CRYPTO_MAX_ALG_NAME)
-		goto out_free_p;
-
-	base->cra_ctxsize = sizeof(struct n2_hmac_ctx);
-	base->cra_init = n2_hmac_cra_init;
-	base->cra_exit = n2_hmac_cra_exit;
-
-	list_add(&p->derived.entry, &hmac_algs);
-	err = crypto_register_ahash(ahash);
-	if (err) {
-		pr_err("%s alg registration failed\n", base->cra_name);
-		list_del(&p->derived.entry);
-out_free_p:
-		kfree(p);
-	} else {
-		pr_info("%s alg registered\n", base->cra_name);
-	}
-	return err;
-}
-
-static int __n2_register_one_ahash(const struct n2_hash_tmpl *tmpl)
-{
-	struct n2_ahash_alg *p = kzalloc(sizeof(*p), GFP_KERNEL);
-	struct hash_alg_common *halg;
-	struct crypto_alg *base;
-	struct ahash_alg *ahash;
-	int err;
-
-	if (!p)
-		return -ENOMEM;
-
-	p->hash_zero = tmpl->hash_zero;
-	p->hash_init = tmpl->hash_init;
-	p->auth_type = tmpl->auth_type;
-	p->hmac_type = tmpl->hmac_type;
-	p->hw_op_hashsz = tmpl->hw_op_hashsz;
-	p->digest_size = tmpl->digest_size;
-
-	ahash = &p->alg;
-	ahash->init = n2_hash_async_init;
-	ahash->update = n2_hash_async_update;
-	ahash->final = n2_hash_async_final;
-	ahash->finup = n2_hash_async_finup;
-	ahash->digest = n2_hash_async_digest;
-	ahash->export = n2_hash_async_noexport;
-	ahash->import = n2_hash_async_noimport;
-
-	halg = &ahash->halg;
-	halg->digestsize = tmpl->digest_size;
-	halg->statesize = tmpl->statesize;
-
-	base = &halg->base;
-	snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name);
-	snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s-n2", tmpl->name);
-	base->cra_priority = N2_CRA_PRIORITY;
-	base->cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY |
-			  CRYPTO_ALG_NEED_FALLBACK;
-	base->cra_blocksize = tmpl->block_size;
-	base->cra_ctxsize = sizeof(struct n2_hash_ctx);
-	base->cra_module = THIS_MODULE;
-	base->cra_init = n2_hash_cra_init;
-	base->cra_exit = n2_hash_cra_exit;
-
-	list_add(&p->entry, &ahash_algs);
-	err = crypto_register_ahash(ahash);
-	if (err) {
-		pr_err("%s alg registration failed\n", base->cra_name);
-		list_del(&p->entry);
-		kfree(p);
-	} else {
-		pr_info("%s alg registered\n", base->cra_name);
-	}
-	if (!err && p->hmac_type != AUTH_TYPE_RESERVED)
-		err = __n2_register_one_hmac(p);
-	return err;
-}
-
-static int n2_register_algs(void)
-{
-	int i, err = 0;
-
-	mutex_lock(&spu_lock);
-	if (algs_registered++)
-		goto out;
-
-	for (i = 0; i < NUM_HASH_TMPLS; i++) {
-		err = __n2_register_one_ahash(&hash_tmpls[i]);
-		if (err) {
-			__n2_unregister_algs();
-			goto out;
-		}
-	}
-	for (i = 0; i < NUM_CIPHER_TMPLS; i++) {
-		err = __n2_register_one_skcipher(&skcipher_tmpls[i]);
-		if (err) {
-			__n2_unregister_algs();
-			goto out;
-		}
-	}
-
-out:
-	mutex_unlock(&spu_lock);
-	return err;
-}
-
-static void n2_unregister_algs(void)
-{
-	mutex_lock(&spu_lock);
-	if (!--algs_registered)
-		__n2_unregister_algs();
-	mutex_unlock(&spu_lock);
-}
-
-/* To map CWQ queues to interrupt sources, the hypervisor API provides
- * a devino.  This isn't very useful to us because all of the
- * interrupts listed in the device_node have been translated to
- * Linux virtual IRQ cookie numbers.
- *
- * So we have to back-translate, going through the 'intr' and 'ino'
- * property tables of the n2cp MDESC node, matching it with the OF
- * 'interrupts' property entries, in order to figure out which
- * devino goes to which already-translated IRQ.
- */
-static int find_devino_index(struct platform_device *dev, struct spu_mdesc_info *ip,
-			     unsigned long dev_ino)
-{
-	const unsigned int *dev_intrs;
-	unsigned int intr;
-	int i;
-
-	for (i = 0; i < ip->num_intrs; i++) {
-		if (ip->ino_table[i].ino == dev_ino)
-			break;
-	}
-	if (i == ip->num_intrs)
-		return -ENODEV;
-
-	intr = ip->ino_table[i].intr;
-
-	dev_intrs = of_get_property(dev->dev.of_node, "interrupts", NULL);
-	if (!dev_intrs)
-		return -ENODEV;
-
-	for (i = 0; i < dev->archdata.num_irqs; i++) {
-		if (dev_intrs[i] == intr)
-			return i;
-	}
-
-	return -ENODEV;
-}
-
-static int spu_map_ino(struct platform_device *dev, struct spu_mdesc_info *ip,
-		       const char *irq_name, struct spu_queue *p,
-		       irq_handler_t handler)
-{
-	unsigned long herr;
-	int index;
-
-	herr = sun4v_ncs_qhandle_to_devino(p->qhandle, &p->devino);
-	if (herr)
-		return -EINVAL;
-
-	index = find_devino_index(dev, ip, p->devino);
-	if (index < 0)
-		return index;
-
-	p->irq = dev->archdata.irqs[index];
-
-	sprintf(p->irq_name, "%s-%d", irq_name, index);
-
-	return request_irq(p->irq, handler, 0, p->irq_name, p);
-}
-
-static struct kmem_cache *queue_cache[2];
-
-static void *new_queue(unsigned long q_type)
-{
-	return kmem_cache_zalloc(queue_cache[q_type - 1], GFP_KERNEL);
-}
-
-static void free_queue(void *p, unsigned long q_type)
-{
-	kmem_cache_free(queue_cache[q_type - 1], p);
-}
-
-static int queue_cache_init(void)
-{
-	if (!queue_cache[HV_NCS_QTYPE_MAU - 1])
-		queue_cache[HV_NCS_QTYPE_MAU - 1] =
-			kmem_cache_create("mau_queue",
-					  (MAU_NUM_ENTRIES *
-					   MAU_ENTRY_SIZE),
-					  MAU_ENTRY_SIZE, 0, NULL);
-	if (!queue_cache[HV_NCS_QTYPE_MAU - 1])
-		return -ENOMEM;
-
-	if (!queue_cache[HV_NCS_QTYPE_CWQ - 1])
-		queue_cache[HV_NCS_QTYPE_CWQ - 1] =
-			kmem_cache_create("cwq_queue",
-					  (CWQ_NUM_ENTRIES *
-					   CWQ_ENTRY_SIZE),
-					  CWQ_ENTRY_SIZE, 0, NULL);
-	if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) {
-		kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]);
-		queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL;
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-static void queue_cache_destroy(void)
-{
-	kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]);
-	kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]);
-	queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL;
-	queue_cache[HV_NCS_QTYPE_CWQ - 1] = NULL;
-}
-
-static long spu_queue_register_workfn(void *arg)
-{
-	struct spu_qreg *qr = arg;
-	struct spu_queue *p = qr->queue;
-	unsigned long q_type = qr->type;
-	unsigned long hv_ret;
-
-	hv_ret = sun4v_ncs_qconf(q_type, __pa(p->q),
-				 CWQ_NUM_ENTRIES, &p->qhandle);
-	if (!hv_ret)
-		sun4v_ncs_sethead_marker(p->qhandle, 0);
-
-	return hv_ret ? -EINVAL : 0;
-}
-
-static int spu_queue_register(struct spu_queue *p, unsigned long q_type)
-{
-	int cpu = cpumask_any_and(&p->sharing, cpu_online_mask);
-	struct spu_qreg qr = { .queue = p, .type = q_type };
-
-	return work_on_cpu_safe(cpu, spu_queue_register_workfn, &qr);
-}
-
-static int spu_queue_setup(struct spu_queue *p)
-{
-	int err;
-
-	p->q = new_queue(p->q_type);
-	if (!p->q)
-		return -ENOMEM;
-
-	err = spu_queue_register(p, p->q_type);
-	if (err) {
-		free_queue(p->q, p->q_type);
-		p->q = NULL;
-	}
-
-	return err;
-}
-
-static void spu_queue_destroy(struct spu_queue *p)
-{
-	unsigned long hv_ret;
-
-	if (!p->q)
-		return;
-
-	hv_ret = sun4v_ncs_qconf(p->q_type, p->qhandle, 0, &p->qhandle);
-
-	if (!hv_ret)
-		free_queue(p->q, p->q_type);
-}
-
-static void spu_list_destroy(struct list_head *list)
-{
-	struct spu_queue *p, *n;
-
-	list_for_each_entry_safe(p, n, list, list) {
-		int i;
-
-		for (i = 0; i < NR_CPUS; i++) {
-			if (cpu_to_cwq[i] == p)
-				cpu_to_cwq[i] = NULL;
-		}
-
-		if (p->irq) {
-			free_irq(p->irq, p);
-			p->irq = 0;
-		}
-		spu_queue_destroy(p);
-		list_del(&p->list);
-		kfree(p);
-	}
-}
-
-/* Walk the backward arcs of a CWQ 'exec-unit' node,
- * gathering cpu membership information.
- */
-static int spu_mdesc_walk_arcs(struct mdesc_handle *mdesc,
-			       struct platform_device *dev,
-			       u64 node, struct spu_queue *p,
-			       struct spu_queue **table)
-{
-	u64 arc;
-
-	mdesc_for_each_arc(arc, mdesc, node, MDESC_ARC_TYPE_BACK) {
-		u64 tgt = mdesc_arc_target(mdesc, arc);
-		const char *name = mdesc_node_name(mdesc, tgt);
-		const u64 *id;
-
-		if (strcmp(name, "cpu"))
-			continue;
-		id = mdesc_get_property(mdesc, tgt, "id", NULL);
-		if (table[*id] != NULL) {
-			dev_err(&dev->dev, "%pOF: SPU cpu slot already set.\n",
-				dev->dev.of_node);
-			return -EINVAL;
-		}
-		cpumask_set_cpu(*id, &p->sharing);
-		table[*id] = p;
-	}
-	return 0;
-}
-
-/* Process an 'exec-unit' MDESC node of type 'cwq'.  */
-static int handle_exec_unit(struct spu_mdesc_info *ip, struct list_head *list,
-			    struct platform_device *dev, struct mdesc_handle *mdesc,
-			    u64 node, const char *iname, unsigned long q_type,
-			    irq_handler_t handler, struct spu_queue **table)
-{
-	struct spu_queue *p;
-	int err;
-
-	p = kzalloc(sizeof(struct spu_queue), GFP_KERNEL);
-	if (!p) {
-		dev_err(&dev->dev, "%pOF: Could not allocate SPU queue.\n",
-			dev->dev.of_node);
-		return -ENOMEM;
-	}
-
-	cpumask_clear(&p->sharing);
-	spin_lock_init(&p->lock);
-	p->q_type = q_type;
-	INIT_LIST_HEAD(&p->jobs);
-	list_add(&p->list, list);
-
-	err = spu_mdesc_walk_arcs(mdesc, dev, node, p, table);
-	if (err)
-		return err;
-
-	err = spu_queue_setup(p);
-	if (err)
-		return err;
-
-	return spu_map_ino(dev, ip, iname, p, handler);
-}
-
-static int spu_mdesc_scan(struct mdesc_handle *mdesc, struct platform_device *dev,
-			  struct spu_mdesc_info *ip, struct list_head *list,
-			  const char *exec_name, unsigned long q_type,
-			  irq_handler_t handler, struct spu_queue **table)
-{
-	int err = 0;
-	u64 node;
-
-	mdesc_for_each_node_by_name(mdesc, node, "exec-unit") {
-		const char *type;
-
-		type = mdesc_get_property(mdesc, node, "type", NULL);
-		if (!type || strcmp(type, exec_name))
-			continue;
-
-		err = handle_exec_unit(ip, list, dev, mdesc, node,
-				       exec_name, q_type, handler, table);
-		if (err) {
-			spu_list_destroy(list);
-			break;
-		}
-	}
-
-	return err;
-}
-
-static int get_irq_props(struct mdesc_handle *mdesc, u64 node,
-			 struct spu_mdesc_info *ip)
-{
-	const u64 *ino;
-	int ino_len;
-	int i;
-
-	ino = mdesc_get_property(mdesc, node, "ino", &ino_len);
-	if (!ino) {
-		printk("NO 'ino'\n");
-		return -ENODEV;
-	}
-
-	ip->num_intrs = ino_len / sizeof(u64);
-	ip->ino_table = kzalloc((sizeof(struct ino_blob) *
-				 ip->num_intrs),
-				GFP_KERNEL);
-	if (!ip->ino_table)
-		return -ENOMEM;
-
-	for (i = 0; i < ip->num_intrs; i++) {
-		struct ino_blob *b = &ip->ino_table[i];
-		b->intr = i + 1;
-		b->ino = ino[i];
-	}
-
-	return 0;
-}
-
-static int grab_mdesc_irq_props(struct mdesc_handle *mdesc,
-				struct platform_device *dev,
-				struct spu_mdesc_info *ip,
-				const char *node_name)
-{
-	u64 node, reg;
-
-	if (of_property_read_reg(dev->dev.of_node, 0, &reg, NULL) < 0)
-		return -ENODEV;
-
-	mdesc_for_each_node_by_name(mdesc, node, "virtual-device") {
-		const char *name;
-		const u64 *chdl;
-
-		name = mdesc_get_property(mdesc, node, "name", NULL);
-		if (!name || strcmp(name, node_name))
-			continue;
-		chdl = mdesc_get_property(mdesc, node, "cfg-handle", NULL);
-		if (!chdl || (*chdl != reg))
-			continue;
-		ip->cfg_handle = *chdl;
-		return get_irq_props(mdesc, node, ip);
-	}
-
-	return -ENODEV;
-}
-
-static unsigned long n2_spu_hvapi_major;
-static unsigned long n2_spu_hvapi_minor;
-
-static int n2_spu_hvapi_register(void)
-{
-	int err;
-
-	n2_spu_hvapi_major = 2;
-	n2_spu_hvapi_minor = 0;
-
-	err = sun4v_hvapi_register(HV_GRP_NCS,
-				   n2_spu_hvapi_major,
-				   &n2_spu_hvapi_minor);
-
-	if (!err)
-		pr_info("Registered NCS HVAPI version %lu.%lu\n",
-			n2_spu_hvapi_major,
-			n2_spu_hvapi_minor);
-
-	return err;
-}
-
-static void n2_spu_hvapi_unregister(void)
-{
-	sun4v_hvapi_unregister(HV_GRP_NCS);
-}
-
-static int global_ref;
-
-static int grab_global_resources(void)
-{
-	int err = 0;
-
-	mutex_lock(&spu_lock);
-
-	if (global_ref++)
-		goto out;
-
-	err = n2_spu_hvapi_register();
-	if (err)
-		goto out;
-
-	err = queue_cache_init();
-	if (err)
-		goto out_hvapi_release;
-
-	err = -ENOMEM;
-	cpu_to_cwq = kcalloc(NR_CPUS, sizeof(struct spu_queue *),
-			     GFP_KERNEL);
-	if (!cpu_to_cwq)
-		goto out_queue_cache_destroy;
-
-	cpu_to_mau = kcalloc(NR_CPUS, sizeof(struct spu_queue *),
-			     GFP_KERNEL);
-	if (!cpu_to_mau)
-		goto out_free_cwq_table;
-
-	err = 0;
-
-out:
-	if (err)
-		global_ref--;
-	mutex_unlock(&spu_lock);
-	return err;
-
-out_free_cwq_table:
-	kfree(cpu_to_cwq);
-	cpu_to_cwq = NULL;
-
-out_queue_cache_destroy:
-	queue_cache_destroy();
-
-out_hvapi_release:
-	n2_spu_hvapi_unregister();
-	goto out;
-}
-
-static void release_global_resources(void)
-{
-	mutex_lock(&spu_lock);
-	if (!--global_ref) {
-		kfree(cpu_to_cwq);
-		cpu_to_cwq = NULL;
-
-		kfree(cpu_to_mau);
-		cpu_to_mau = NULL;
-
-		queue_cache_destroy();
-		n2_spu_hvapi_unregister();
-	}
-	mutex_unlock(&spu_lock);
-}
-
-static struct n2_crypto *alloc_n2cp(void)
-{
-	struct n2_crypto *np = kzalloc(sizeof(struct n2_crypto), GFP_KERNEL);
-
-	if (np)
-		INIT_LIST_HEAD(&np->cwq_list);
-
-	return np;
-}
-
-static void free_n2cp(struct n2_crypto *np)
-{
-	kfree(np->cwq_info.ino_table);
-	np->cwq_info.ino_table = NULL;
-
-	kfree(np);
-}
-
-static void n2_spu_driver_version(void)
-{
-	static int n2_spu_version_printed;
-
-	if (n2_spu_version_printed++ == 0)
-		pr_info("%s", version);
-}
-
-static int n2_crypto_probe(struct platform_device *dev)
-{
-	struct mdesc_handle *mdesc;
-	struct n2_crypto *np;
-	int err;
-
-	n2_spu_driver_version();
-
-	pr_info("Found N2CP at %pOF\n", dev->dev.of_node);
-
-	np = alloc_n2cp();
-	if (!np) {
-		dev_err(&dev->dev, "%pOF: Unable to allocate n2cp.\n",
-			dev->dev.of_node);
-		return -ENOMEM;
-	}
-
-	err = grab_global_resources();
-	if (err) {
-		dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n",
-			dev->dev.of_node);
-		goto out_free_n2cp;
-	}
-
-	mdesc = mdesc_grab();
-
-	if (!mdesc) {
-		dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n",
-			dev->dev.of_node);
-		err = -ENODEV;
-		goto out_free_global;
-	}
-	err = grab_mdesc_irq_props(mdesc, dev, &np->cwq_info, "n2cp");
-	if (err) {
-		dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n",
-			dev->dev.of_node);
-		mdesc_release(mdesc);
-		goto out_free_global;
-	}
-
-	err = spu_mdesc_scan(mdesc, dev, &np->cwq_info, &np->cwq_list,
-			     "cwq", HV_NCS_QTYPE_CWQ, cwq_intr,
-			     cpu_to_cwq);
-	mdesc_release(mdesc);
-
-	if (err) {
-		dev_err(&dev->dev, "%pOF: CWQ MDESC scan failed.\n",
-			dev->dev.of_node);
-		goto out_free_global;
-	}
-
-	err = n2_register_algs();
-	if (err) {
-		dev_err(&dev->dev, "%pOF: Unable to register algorithms.\n",
-			dev->dev.of_node);
-		goto out_free_spu_list;
-	}
-
-	dev_set_drvdata(&dev->dev, np);
-
-	return 0;
-
-out_free_spu_list:
-	spu_list_destroy(&np->cwq_list);
-
-out_free_global:
-	release_global_resources();
-
-out_free_n2cp:
-	free_n2cp(np);
-
-	return err;
-}
-
-static void n2_crypto_remove(struct platform_device *dev)
-{
-	struct n2_crypto *np = dev_get_drvdata(&dev->dev);
-
-	n2_unregister_algs();
-
-	spu_list_destroy(&np->cwq_list);
-
-	release_global_resources();
-
-	free_n2cp(np);
-}
-
-static struct n2_mau *alloc_ncp(void)
-{
-	struct n2_mau *mp = kzalloc(sizeof(struct n2_mau), GFP_KERNEL);
-
-	if (mp)
-		INIT_LIST_HEAD(&mp->mau_list);
-
-	return mp;
-}
-
-static void free_ncp(struct n2_mau *mp)
-{
-	kfree(mp->mau_info.ino_table);
-	mp->mau_info.ino_table = NULL;
-
-	kfree(mp);
-}
-
-static int n2_mau_probe(struct platform_device *dev)
-{
-	struct mdesc_handle *mdesc;
-	struct n2_mau *mp;
-	int err;
-
-	n2_spu_driver_version();
-
-	pr_info("Found NCP at %pOF\n", dev->dev.of_node);
-
-	mp = alloc_ncp();
-	if (!mp) {
-		dev_err(&dev->dev, "%pOF: Unable to allocate ncp.\n",
-			dev->dev.of_node);
-		return -ENOMEM;
-	}
-
-	err = grab_global_resources();
-	if (err) {
-		dev_err(&dev->dev, "%pOF: Unable to grab global resources.\n",
-			dev->dev.of_node);
-		goto out_free_ncp;
-	}
-
-	mdesc = mdesc_grab();
-
-	if (!mdesc) {
-		dev_err(&dev->dev, "%pOF: Unable to grab MDESC.\n",
-			dev->dev.of_node);
-		err = -ENODEV;
-		goto out_free_global;
-	}
-
-	err = grab_mdesc_irq_props(mdesc, dev, &mp->mau_info, "ncp");
-	if (err) {
-		dev_err(&dev->dev, "%pOF: Unable to grab IRQ props.\n",
-			dev->dev.of_node);
-		mdesc_release(mdesc);
-		goto out_free_global;
-	}
-
-	err = spu_mdesc_scan(mdesc, dev, &mp->mau_info, &mp->mau_list,
-			     "mau", HV_NCS_QTYPE_MAU, mau_intr,
-			     cpu_to_mau);
-	mdesc_release(mdesc);
-
-	if (err) {
-		dev_err(&dev->dev, "%pOF: MAU MDESC scan failed.\n",
-			dev->dev.of_node);
-		goto out_free_global;
-	}
-
-	dev_set_drvdata(&dev->dev, mp);
-
-	return 0;
-
-out_free_global:
-	release_global_resources();
-
-out_free_ncp:
-	free_ncp(mp);
-
-	return err;
-}
-
-static void n2_mau_remove(struct platform_device *dev)
-{
-	struct n2_mau *mp = dev_get_drvdata(&dev->dev);
-
-	spu_list_destroy(&mp->mau_list);
-
-	release_global_resources();
-
-	free_ncp(mp);
-}
-
-static const struct of_device_id n2_crypto_match[] = {
-	{
-		.name = "n2cp",
-		.compatible = "SUNW,n2-cwq",
-	},
-	{
-		.name = "n2cp",
-		.compatible = "SUNW,vf-cwq",
-	},
-	{
-		.name = "n2cp",
-		.compatible = "SUNW,kt-cwq",
-	},
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, n2_crypto_match);
-
-static struct platform_driver n2_crypto_driver = {
-	.driver = {
-		.name		=	"n2cp",
-		.of_match_table	=	n2_crypto_match,
-	},
-	.probe		=	n2_crypto_probe,
-	.remove		=	n2_crypto_remove,
-};
-
-static const struct of_device_id n2_mau_match[] = {
-	{
-		.name = "ncp",
-		.compatible = "SUNW,n2-mau",
-	},
-	{
-		.name = "ncp",
-		.compatible = "SUNW,vf-mau",
-	},
-	{
-		.name = "ncp",
-		.compatible = "SUNW,kt-mau",
-	},
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, n2_mau_match);
-
-static struct platform_driver n2_mau_driver = {
-	.driver = {
-		.name		=	"ncp",
-		.of_match_table	=	n2_mau_match,
-	},
-	.probe		=	n2_mau_probe,
-	.remove		=	n2_mau_remove,
-};
-
-static struct platform_driver * const drivers[] = {
-	&n2_crypto_driver,
-	&n2_mau_driver,
-};
-
-static int __init n2_init(void)
-{
-	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
-}
-
-static void __exit n2_exit(void)
-{
-	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
-}
-
-module_init(n2_init);
-module_exit(n2_exit);
diff --git a/drivers/crypto/n2_core.h b/drivers/crypto/n2_core.h
deleted file mode 100644
index 2406763b03062..0000000000000
--- a/drivers/crypto/n2_core.h
+++ /dev/null
@@ -1,232 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _N2_CORE_H
-#define _N2_CORE_H
-
-#ifndef __ASSEMBLY__
-
-struct ino_blob {
-	u64			intr;
-	u64			ino;
-};
-
-struct spu_mdesc_info {
-	u64			cfg_handle;
-	struct ino_blob		*ino_table;
-	int			num_intrs;
-};
-
-struct n2_crypto {
-	struct spu_mdesc_info	cwq_info;
-	struct list_head	cwq_list;
-};
-
-struct n2_mau {
-	struct spu_mdesc_info	mau_info;
-	struct list_head	mau_list;
-};
-
-#define CWQ_ENTRY_SIZE		64
-#define CWQ_NUM_ENTRIES		64
-
-#define MAU_ENTRY_SIZE		64
-#define MAU_NUM_ENTRIES		64
-
-struct cwq_initial_entry {
-	u64			control;
-	u64			src_addr;
-	u64			auth_key_addr;
-	u64			auth_iv_addr;
-	u64			final_auth_state_addr;
-	u64			enc_key_addr;
-	u64			enc_iv_addr;
-	u64			dest_addr;
-};
-
-struct cwq_ext_entry {
-	u64			len;
-	u64			src_addr;
-	u64			resv1;
-	u64			resv2;
-	u64			resv3;
-	u64			resv4;
-	u64			resv5;
-	u64			resv6;
-};
-
-struct cwq_final_entry {
-	u64			control;
-	u64			src_addr;
-	u64			resv1;
-	u64			resv2;
-	u64			resv3;
-	u64			resv4;
-	u64			resv5;
-	u64			resv6;
-};
-
-#define CONTROL_LEN			0x000000000000ffffULL
-#define CONTROL_LEN_SHIFT		0
-#define CONTROL_HMAC_KEY_LEN		0x0000000000ff0000ULL
-#define CONTROL_HMAC_KEY_LEN_SHIFT	16
-#define CONTROL_ENC_TYPE		0x00000000ff000000ULL
-#define CONTROL_ENC_TYPE_SHIFT		24
-#define  ENC_TYPE_ALG_RC4_STREAM	0x00ULL
-#define  ENC_TYPE_ALG_RC4_NOSTREAM	0x04ULL
-#define  ENC_TYPE_ALG_DES		0x08ULL
-#define  ENC_TYPE_ALG_3DES		0x0cULL
-#define  ENC_TYPE_ALG_AES128		0x10ULL
-#define  ENC_TYPE_ALG_AES192		0x14ULL
-#define  ENC_TYPE_ALG_AES256		0x18ULL
-#define  ENC_TYPE_ALG_RESERVED		0x1cULL
-#define  ENC_TYPE_ALG_MASK		0x1cULL
-#define  ENC_TYPE_CHAINING_ECB		0x00ULL
-#define  ENC_TYPE_CHAINING_CBC		0x01ULL
-#define  ENC_TYPE_CHAINING_CFB		0x02ULL
-#define  ENC_TYPE_CHAINING_COUNTER	0x03ULL
-#define  ENC_TYPE_CHAINING_MASK		0x03ULL
-#define CONTROL_AUTH_TYPE		0x0000001f00000000ULL
-#define CONTROL_AUTH_TYPE_SHIFT		32
-#define  AUTH_TYPE_RESERVED		0x00ULL
-#define  AUTH_TYPE_MD5			0x01ULL
-#define  AUTH_TYPE_SHA1			0x02ULL
-#define  AUTH_TYPE_SHA256		0x03ULL
-#define  AUTH_TYPE_CRC32		0x04ULL
-#define  AUTH_TYPE_HMAC_MD5		0x05ULL
-#define  AUTH_TYPE_HMAC_SHA1		0x06ULL
-#define  AUTH_TYPE_HMAC_SHA256		0x07ULL
-#define  AUTH_TYPE_TCP_CHECKSUM		0x08ULL
-#define  AUTH_TYPE_SSL_HMAC_MD5		0x09ULL
-#define  AUTH_TYPE_SSL_HMAC_SHA1	0x0aULL
-#define  AUTH_TYPE_SSL_HMAC_SHA256	0x0bULL
-#define CONTROL_STRAND			0x000000e000000000ULL
-#define CONTROL_STRAND_SHIFT		37
-#define CONTROL_HASH_LEN		0x0000ff0000000000ULL
-#define CONTROL_HASH_LEN_SHIFT		40
-#define CONTROL_INTERRUPT		0x0001000000000000ULL
-#define CONTROL_STORE_FINAL_AUTH_STATE	0x0002000000000000ULL
-#define CONTROL_RESERVED		0x001c000000000000ULL
-#define CONTROL_HV_DONE			0x0004000000000000ULL
-#define CONTROL_HV_PROTOCOL_ERROR	0x0008000000000000ULL
-#define CONTROL_HV_HARDWARE_ERROR	0x0010000000000000ULL
-#define CONTROL_END_OF_BLOCK		0x0020000000000000ULL
-#define CONTROL_START_OF_BLOCK		0x0040000000000000ULL
-#define CONTROL_ENCRYPT			0x0080000000000000ULL
-#define CONTROL_OPCODE			0xff00000000000000ULL
-#define CONTROL_OPCODE_SHIFT		56
-#define  OPCODE_INPLACE_BIT		0x80ULL
-#define  OPCODE_SSL_KEYBLOCK		0x10ULL
-#define  OPCODE_COPY			0x20ULL
-#define  OPCODE_ENCRYPT			0x40ULL
-#define  OPCODE_AUTH_MAC		0x41ULL
-
-#endif /* !(__ASSEMBLY__) */
-
-/* NCS v2.0 hypervisor interfaces */
-#define HV_NCS_QTYPE_MAU		0x01
-#define HV_NCS_QTYPE_CWQ		0x02
-
-/* ncs_qconf()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_QCONF
- * ARG0:	Queue type (HV_NCS_QTYPE_{MAU,CWQ})
- * ARG1:	Real address of queue, or handle for unconfigure
- * ARG2:	Number of entries in queue, zero for unconfigure
- * RET0:	status
- * RET1:	queue handle
- *
- * Configure a queue in the stream processing unit.
- *
- * The real address given as the base must be 64-byte
- * aligned.
- *
- * The queue size can range from a minimum of 2 to a maximum
- * of 64.  The queue size must be a power of two.
- *
- * To unconfigure a queue, specify a length of zero and place
- * the queue handle into ARG1.
- *
- * On configure success the hypervisor will set the FIRST, HEAD,
- * and TAIL registers to the address of the first entry in the
- * queue.  The LAST register will be set to point to the last
- * entry in the queue.
- */
-#define HV_FAST_NCS_QCONF		0x111
-
-/* ncs_qinfo()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_QINFO
- * ARG0:	Queue handle
- * RET0:	status
- * RET1:	Queue type (HV_NCS_QTYPE_{MAU,CWQ})
- * RET2:	Queue base address
- * RET3:	Number of entries
- */
-#define HV_FAST_NCS_QINFO		0x112
-
-/* ncs_gethead()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_GETHEAD
- * ARG0:	Queue handle
- * RET0:	status
- * RET1:	queue head offset
- */
-#define HV_FAST_NCS_GETHEAD		0x113
-
-/* ncs_gettail()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_GETTAIL
- * ARG0:	Queue handle
- * RET0:	status
- * RET1:	queue tail offset
- */
-#define HV_FAST_NCS_GETTAIL		0x114
-
-/* ncs_settail()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_SETTAIL
- * ARG0:	Queue handle
- * ARG1:	New tail offset
- * RET0:	status
- */
-#define HV_FAST_NCS_SETTAIL		0x115
-
-/* ncs_qhandle_to_devino()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_QHANDLE_TO_DEVINO
- * ARG0:	Queue handle
- * RET0:	status
- * RET1:	devino
- */
-#define HV_FAST_NCS_QHANDLE_TO_DEVINO	0x116
-
-/* ncs_sethead_marker()
- * TRAP:	HV_FAST_TRAP
- * FUNCTION:	HV_FAST_NCS_SETHEAD_MARKER
- * ARG0:	Queue handle
- * ARG1:	New head offset
- * RET0:	status
- */
-#define HV_FAST_NCS_SETHEAD_MARKER	0x117
-
-#ifndef __ASSEMBLY__
-extern unsigned long sun4v_ncs_qconf(unsigned long queue_type,
-				     unsigned long queue_ra,
-				     unsigned long num_entries,
-				     unsigned long *qhandle);
-extern unsigned long sun4v_ncs_qinfo(unsigned long qhandle,
-				     unsigned long *queue_type,
-				     unsigned long *queue_ra,
-				     unsigned long *num_entries);
-extern unsigned long sun4v_ncs_gethead(unsigned long qhandle,
-				       unsigned long *head);
-extern unsigned long sun4v_ncs_gettail(unsigned long qhandle,
-				       unsigned long *tail);
-extern unsigned long sun4v_ncs_settail(unsigned long qhandle,
-				       unsigned long tail);
-extern unsigned long sun4v_ncs_qhandle_to_devino(unsigned long qhandle,
-						 unsigned long *devino);
-extern unsigned long sun4v_ncs_sethead_marker(unsigned long qhandle,
-					      unsigned long head);
-#endif /* !(__ASSEMBLY__) */
-
-#endif /* _N2_CORE_H */
