1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * talitos - Freescale Integrated Security Engine (SEC) device driver
5 * Copyright (c) 2008-2011 Freescale Semiconductor, Inc.
7 * Scatterlist Crypto API glue code copied from files with the following:
8 * Copyright (c) 2006-2007 Herbert Xu <herbert@gondor.apana.org.au>
10 * Crypto algorithm registration code copied from hifn driver:
11 * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
12 * All rights reserved.
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/mod_devicetable.h>
18 #include <linux/device.h>
19 #include <linux/interrupt.h>
20 #include <linux/crypto.h>
21 #include <linux/hw_random.h>
22 #include <linux/of_address.h>
23 #include <linux/of_irq.h>
24 #include <linux/of_platform.h>
25 #include <linux/dma-mapping.h>
27 #include <linux/spinlock.h>
28 #include <linux/rtnetlink.h>
29 #include <linux/slab.h>
31 #include <crypto/algapi.h>
32 #include <crypto/aes.h>
33 #include <crypto/internal/des.h>
34 #include <crypto/sha.h>
35 #include <crypto/md5.h>
36 #include <crypto/internal/aead.h>
37 #include <crypto/authenc.h>
38 #include <crypto/internal/skcipher.h>
39 #include <crypto/hash.h>
40 #include <crypto/internal/hash.h>
41 #include <crypto/scatterwalk.h>
45 static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr,
46 unsigned int len, bool is_sec1)
48 ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
50 ptr->len1 = cpu_to_be16(len);
52 ptr->len = cpu_to_be16(len);
53 ptr->eptr = upper_32_bits(dma_addr);
57 static void copy_talitos_ptr(struct talitos_ptr *dst_ptr,
58 struct talitos_ptr *src_ptr, bool is_sec1)
60 dst_ptr->ptr = src_ptr->ptr;
62 dst_ptr->len1 = src_ptr->len1;
64 dst_ptr->len = src_ptr->len;
65 dst_ptr->eptr = src_ptr->eptr;
69 static unsigned short from_talitos_ptr_len(struct talitos_ptr *ptr,
73 return be16_to_cpu(ptr->len1);
75 return be16_to_cpu(ptr->len);
78 static void to_talitos_ptr_ext_set(struct talitos_ptr *ptr, u8 val,
85 static void to_talitos_ptr_ext_or(struct talitos_ptr *ptr, u8 val, bool is_sec1)
92 * map virtual single (contiguous) pointer to h/w descriptor pointer
94 static void __map_single_talitos_ptr(struct device *dev,
95 struct talitos_ptr *ptr,
96 unsigned int len, void *data,
97 enum dma_data_direction dir,
100 dma_addr_t dma_addr = dma_map_single_attrs(dev, data, len, dir, attrs);
101 struct talitos_private *priv = dev_get_drvdata(dev);
102 bool is_sec1 = has_ftr_sec1(priv);
104 to_talitos_ptr(ptr, dma_addr, len, is_sec1);
107 static void map_single_talitos_ptr(struct device *dev,
108 struct talitos_ptr *ptr,
109 unsigned int len, void *data,
110 enum dma_data_direction dir)
112 __map_single_talitos_ptr(dev, ptr, len, data, dir, 0);
115 static void map_single_talitos_ptr_nosync(struct device *dev,
116 struct talitos_ptr *ptr,
117 unsigned int len, void *data,
118 enum dma_data_direction dir)
120 __map_single_talitos_ptr(dev, ptr, len, data, dir,
121 DMA_ATTR_SKIP_CPU_SYNC);
125 * unmap bus single (contiguous) h/w descriptor pointer
127 static void unmap_single_talitos_ptr(struct device *dev,
128 struct talitos_ptr *ptr,
129 enum dma_data_direction dir)
131 struct talitos_private *priv = dev_get_drvdata(dev);
132 bool is_sec1 = has_ftr_sec1(priv);
134 dma_unmap_single(dev, be32_to_cpu(ptr->ptr),
135 from_talitos_ptr_len(ptr, is_sec1), dir);
138 static int reset_channel(struct device *dev, int ch)
140 struct talitos_private *priv = dev_get_drvdata(dev);
141 unsigned int timeout = TALITOS_TIMEOUT;
142 bool is_sec1 = has_ftr_sec1(priv);
145 setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
146 TALITOS1_CCCR_LO_RESET);
148 while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR_LO) &
149 TALITOS1_CCCR_LO_RESET) && --timeout)
152 setbits32(priv->chan[ch].reg + TALITOS_CCCR,
153 TALITOS2_CCCR_RESET);
155 while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) &
156 TALITOS2_CCCR_RESET) && --timeout)
161 dev_err(dev, "failed to reset channel %d\n", ch);
165 /* set 36-bit addressing, done writeback enable and done IRQ enable */
166 setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE |
167 TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE);
168 /* enable chaining descriptors */
170 setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
173 /* and ICCR writeback, if available */
174 if (priv->features & TALITOS_FTR_HW_AUTH_CHECK)
175 setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
176 TALITOS_CCCR_LO_IWSE);
181 static int reset_device(struct device *dev)
183 struct talitos_private *priv = dev_get_drvdata(dev);
184 unsigned int timeout = TALITOS_TIMEOUT;
185 bool is_sec1 = has_ftr_sec1(priv);
186 u32 mcr = is_sec1 ? TALITOS1_MCR_SWR : TALITOS2_MCR_SWR;
188 setbits32(priv->reg + TALITOS_MCR, mcr);
190 while ((in_be32(priv->reg + TALITOS_MCR) & mcr)
195 mcr = TALITOS_MCR_RCA1 | TALITOS_MCR_RCA3;
196 setbits32(priv->reg + TALITOS_MCR, mcr);
200 dev_err(dev, "failed to reset device\n");
208 * Reset and initialize the device
210 static int init_device(struct device *dev)
212 struct talitos_private *priv = dev_get_drvdata(dev);
214 bool is_sec1 = has_ftr_sec1(priv);
218 * errata documentation: warning: certain SEC interrupts
219 * are not fully cleared by writing the MCR:SWR bit,
220 * set bit twice to completely reset
222 err = reset_device(dev);
226 err = reset_device(dev);
231 for (ch = 0; ch < priv->num_channels; ch++) {
232 err = reset_channel(dev, ch);
237 /* enable channel done and error interrupts */
239 clrbits32(priv->reg + TALITOS_IMR, TALITOS1_IMR_INIT);
240 clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT);
241 /* disable parity error check in DEU (erroneous? test vect.) */
242 setbits32(priv->reg_deu + TALITOS_EUICR, TALITOS1_DEUICR_KPE);
244 setbits32(priv->reg + TALITOS_IMR, TALITOS2_IMR_INIT);
245 setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT);
248 /* disable integrity check error interrupts (use writeback instead) */
249 if (priv->features & TALITOS_FTR_HW_AUTH_CHECK)
250 setbits32(priv->reg_mdeu + TALITOS_EUICR_LO,
251 TALITOS_MDEUICR_LO_ICE);
257 * talitos_submit - submits a descriptor to the device for processing
258 * @dev: the SEC device to be used
259 * @ch: the SEC device channel to be used
260 * @desc: the descriptor to be processed by the device
261 * @callback: whom to call when processing is complete
262 * @context: a handle for use by caller (optional)
264 * desc must contain valid dma-mapped (bus physical) address pointers.
265 * callback must check err and feedback in descriptor header
266 * for device processing status.
268 static int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
269 void (*callback)(struct device *dev,
270 struct talitos_desc *desc,
271 void *context, int error),
274 struct talitos_private *priv = dev_get_drvdata(dev);
275 struct talitos_request *request;
278 bool is_sec1 = has_ftr_sec1(priv);
280 spin_lock_irqsave(&priv->chan[ch].head_lock, flags);
282 if (!atomic_inc_not_zero(&priv->chan[ch].submit_count)) {
283 /* h/w fifo is full */
284 spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags);
288 head = priv->chan[ch].head;
289 request = &priv->chan[ch].fifo[head];
291 /* map descriptor and save caller data */
293 desc->hdr1 = desc->hdr;
294 request->dma_desc = dma_map_single(dev, &desc->hdr1,
298 request->dma_desc = dma_map_single(dev, desc,
302 request->callback = callback;
303 request->context = context;
305 /* increment fifo head */
306 priv->chan[ch].head = (priv->chan[ch].head + 1) & (priv->fifo_len - 1);
309 request->desc = desc;
313 out_be32(priv->chan[ch].reg + TALITOS_FF,
314 upper_32_bits(request->dma_desc));
315 out_be32(priv->chan[ch].reg + TALITOS_FF_LO,
316 lower_32_bits(request->dma_desc));
318 spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags);
323 static __be32 get_request_hdr(struct talitos_request *request, bool is_sec1)
325 struct talitos_edesc *edesc;
328 return request->desc->hdr;
330 if (!request->desc->next_desc)
331 return request->desc->hdr1;
333 edesc = container_of(request->desc, struct talitos_edesc, desc);
335 return ((struct talitos_desc *)(edesc->buf + edesc->dma_len))->hdr1;
339 * process what was done, notify callback of error if not
341 static void flush_channel(struct device *dev, int ch, int error, int reset_ch)
343 struct talitos_private *priv = dev_get_drvdata(dev);
344 struct talitos_request *request, saved_req;
347 bool is_sec1 = has_ftr_sec1(priv);
349 spin_lock_irqsave(&priv->chan[ch].tail_lock, flags);
351 tail = priv->chan[ch].tail;
352 while (priv->chan[ch].fifo[tail].desc) {
355 request = &priv->chan[ch].fifo[tail];
357 /* descriptors with their done bits set don't get the error */
359 hdr = get_request_hdr(request, is_sec1);
361 if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE)
369 dma_unmap_single(dev, request->dma_desc,
373 /* copy entries so we can call callback outside lock */
374 saved_req.desc = request->desc;
375 saved_req.callback = request->callback;
376 saved_req.context = request->context;
378 /* release request entry in fifo */
380 request->desc = NULL;
382 /* increment fifo tail */
383 priv->chan[ch].tail = (tail + 1) & (priv->fifo_len - 1);
385 spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags);
387 atomic_dec(&priv->chan[ch].submit_count);
389 saved_req.callback(dev, saved_req.desc, saved_req.context,
391 /* channel may resume processing in single desc error case */
392 if (error && !reset_ch && status == error)
394 spin_lock_irqsave(&priv->chan[ch].tail_lock, flags);
395 tail = priv->chan[ch].tail;
398 spin_unlock_irqrestore(&priv->chan[ch].tail_lock, flags);
402 * process completed requests for channels that have done status
404 #define DEF_TALITOS1_DONE(name, ch_done_mask) \
405 static void talitos1_done_##name(unsigned long data) \
407 struct device *dev = (struct device *)data; \
408 struct talitos_private *priv = dev_get_drvdata(dev); \
409 unsigned long flags; \
411 if (ch_done_mask & 0x10000000) \
412 flush_channel(dev, 0, 0, 0); \
413 if (ch_done_mask & 0x40000000) \
414 flush_channel(dev, 1, 0, 0); \
415 if (ch_done_mask & 0x00010000) \
416 flush_channel(dev, 2, 0, 0); \
417 if (ch_done_mask & 0x00040000) \
418 flush_channel(dev, 3, 0, 0); \
420 /* At this point, all completed channels have been processed */ \
421 /* Unmask done interrupts for channels completed later on. */ \
422 spin_lock_irqsave(&priv->reg_lock, flags); \
423 clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \
424 clrbits32(priv->reg + TALITOS_IMR_LO, TALITOS1_IMR_LO_INIT); \
425 spin_unlock_irqrestore(&priv->reg_lock, flags); \
428 DEF_TALITOS1_DONE(4ch, TALITOS1_ISR_4CHDONE)
429 DEF_TALITOS1_DONE(ch0, TALITOS1_ISR_CH_0_DONE)
431 #define DEF_TALITOS2_DONE(name, ch_done_mask) \
432 static void talitos2_done_##name(unsigned long data) \
434 struct device *dev = (struct device *)data; \
435 struct talitos_private *priv = dev_get_drvdata(dev); \
436 unsigned long flags; \
438 if (ch_done_mask & 1) \
439 flush_channel(dev, 0, 0, 0); \
440 if (ch_done_mask & (1 << 2)) \
441 flush_channel(dev, 1, 0, 0); \
442 if (ch_done_mask & (1 << 4)) \
443 flush_channel(dev, 2, 0, 0); \
444 if (ch_done_mask & (1 << 6)) \
445 flush_channel(dev, 3, 0, 0); \
447 /* At this point, all completed channels have been processed */ \
448 /* Unmask done interrupts for channels completed later on. */ \
449 spin_lock_irqsave(&priv->reg_lock, flags); \
450 setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \
451 setbits32(priv->reg + TALITOS_IMR_LO, TALITOS2_IMR_LO_INIT); \
452 spin_unlock_irqrestore(&priv->reg_lock, flags); \
455 DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE)
456 DEF_TALITOS2_DONE(ch0, TALITOS2_ISR_CH_0_DONE)
457 DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE)
458 DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE)
461 * locate current (offending) descriptor
463 static u32 current_desc_hdr(struct device *dev, int ch)
465 struct talitos_private *priv = dev_get_drvdata(dev);
469 cur_desc = ((u64)in_be32(priv->chan[ch].reg + TALITOS_CDPR)) << 32;
470 cur_desc |= in_be32(priv->chan[ch].reg + TALITOS_CDPR_LO);
473 dev_err(dev, "CDPR is NULL, giving up search for offending descriptor\n");
477 tail = priv->chan[ch].tail;
480 while (priv->chan[ch].fifo[iter].dma_desc != cur_desc &&
481 priv->chan[ch].fifo[iter].desc->next_desc != cur_desc) {
482 iter = (iter + 1) & (priv->fifo_len - 1);
484 dev_err(dev, "couldn't locate current descriptor\n");
489 if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc) {
490 struct talitos_edesc *edesc;
492 edesc = container_of(priv->chan[ch].fifo[iter].desc,
493 struct talitos_edesc, desc);
494 return ((struct talitos_desc *)
495 (edesc->buf + edesc->dma_len))->hdr;
498 return priv->chan[ch].fifo[iter].desc->hdr;
502 * user diagnostics; report root cause of error based on execution unit status
504 static void report_eu_error(struct device *dev, int ch, u32 desc_hdr)
506 struct talitos_private *priv = dev_get_drvdata(dev);
510 desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF);
512 switch (desc_hdr & DESC_HDR_SEL0_MASK) {
513 case DESC_HDR_SEL0_AFEU:
514 dev_err(dev, "AFEUISR 0x%08x_%08x\n",
515 in_be32(priv->reg_afeu + TALITOS_EUISR),
516 in_be32(priv->reg_afeu + TALITOS_EUISR_LO));
518 case DESC_HDR_SEL0_DEU:
519 dev_err(dev, "DEUISR 0x%08x_%08x\n",
520 in_be32(priv->reg_deu + TALITOS_EUISR),
521 in_be32(priv->reg_deu + TALITOS_EUISR_LO));
523 case DESC_HDR_SEL0_MDEUA:
524 case DESC_HDR_SEL0_MDEUB:
525 dev_err(dev, "MDEUISR 0x%08x_%08x\n",
526 in_be32(priv->reg_mdeu + TALITOS_EUISR),
527 in_be32(priv->reg_mdeu + TALITOS_EUISR_LO));
529 case DESC_HDR_SEL0_RNG:
530 dev_err(dev, "RNGUISR 0x%08x_%08x\n",
531 in_be32(priv->reg_rngu + TALITOS_ISR),
532 in_be32(priv->reg_rngu + TALITOS_ISR_LO));
534 case DESC_HDR_SEL0_PKEU:
535 dev_err(dev, "PKEUISR 0x%08x_%08x\n",
536 in_be32(priv->reg_pkeu + TALITOS_EUISR),
537 in_be32(priv->reg_pkeu + TALITOS_EUISR_LO));
539 case DESC_HDR_SEL0_AESU:
540 dev_err(dev, "AESUISR 0x%08x_%08x\n",
541 in_be32(priv->reg_aesu + TALITOS_EUISR),
542 in_be32(priv->reg_aesu + TALITOS_EUISR_LO));
544 case DESC_HDR_SEL0_CRCU:
545 dev_err(dev, "CRCUISR 0x%08x_%08x\n",
546 in_be32(priv->reg_crcu + TALITOS_EUISR),
547 in_be32(priv->reg_crcu + TALITOS_EUISR_LO));
549 case DESC_HDR_SEL0_KEU:
550 dev_err(dev, "KEUISR 0x%08x_%08x\n",
551 in_be32(priv->reg_pkeu + TALITOS_EUISR),
552 in_be32(priv->reg_pkeu + TALITOS_EUISR_LO));
556 switch (desc_hdr & DESC_HDR_SEL1_MASK) {
557 case DESC_HDR_SEL1_MDEUA:
558 case DESC_HDR_SEL1_MDEUB:
559 dev_err(dev, "MDEUISR 0x%08x_%08x\n",
560 in_be32(priv->reg_mdeu + TALITOS_EUISR),
561 in_be32(priv->reg_mdeu + TALITOS_EUISR_LO));
563 case DESC_HDR_SEL1_CRCU:
564 dev_err(dev, "CRCUISR 0x%08x_%08x\n",
565 in_be32(priv->reg_crcu + TALITOS_EUISR),
566 in_be32(priv->reg_crcu + TALITOS_EUISR_LO));
570 for (i = 0; i < 8; i++)
571 dev_err(dev, "DESCBUF 0x%08x_%08x\n",
572 in_be32(priv->chan[ch].reg + TALITOS_DESCBUF + 8*i),
573 in_be32(priv->chan[ch].reg + TALITOS_DESCBUF_LO + 8*i));
577 * recover from error interrupts
579 static void talitos_error(struct device *dev, u32 isr, u32 isr_lo)
581 struct talitos_private *priv = dev_get_drvdata(dev);
582 unsigned int timeout = TALITOS_TIMEOUT;
583 int ch, error, reset_dev = 0;
585 bool is_sec1 = has_ftr_sec1(priv);
586 int reset_ch = is_sec1 ? 1 : 0; /* only SEC2 supports continuation */
588 for (ch = 0; ch < priv->num_channels; ch++) {
589 /* skip channels without errors */
591 /* bits 29, 31, 17, 19 */
592 if (!(isr & (1 << (29 + (ch & 1) * 2 - (ch & 2) * 6))))
595 if (!(isr & (1 << (ch * 2 + 1))))
601 v_lo = in_be32(priv->chan[ch].reg + TALITOS_CCPSR_LO);
603 if (v_lo & TALITOS_CCPSR_LO_DOF) {
604 dev_err(dev, "double fetch fifo overflow error\n");
608 if (v_lo & TALITOS_CCPSR_LO_SOF) {
609 /* h/w dropped descriptor */
610 dev_err(dev, "single fetch fifo overflow error\n");
613 if (v_lo & TALITOS_CCPSR_LO_MDTE)
614 dev_err(dev, "master data transfer error\n");
615 if (v_lo & TALITOS_CCPSR_LO_SGDLZ)
616 dev_err(dev, is_sec1 ? "pointer not complete error\n"
617 : "s/g data length zero error\n");
618 if (v_lo & TALITOS_CCPSR_LO_FPZ)
619 dev_err(dev, is_sec1 ? "parity error\n"
620 : "fetch pointer zero error\n");
621 if (v_lo & TALITOS_CCPSR_LO_IDH)
622 dev_err(dev, "illegal descriptor header error\n");
623 if (v_lo & TALITOS_CCPSR_LO_IEU)
624 dev_err(dev, is_sec1 ? "static assignment error\n"
625 : "invalid exec unit error\n");
626 if (v_lo & TALITOS_CCPSR_LO_EU)
627 report_eu_error(dev, ch, current_desc_hdr(dev, ch));
629 if (v_lo & TALITOS_CCPSR_LO_GB)
630 dev_err(dev, "gather boundary error\n");
631 if (v_lo & TALITOS_CCPSR_LO_GRL)
632 dev_err(dev, "gather return/length error\n");
633 if (v_lo & TALITOS_CCPSR_LO_SB)
634 dev_err(dev, "scatter boundary error\n");
635 if (v_lo & TALITOS_CCPSR_LO_SRL)
636 dev_err(dev, "scatter return/length error\n");
639 flush_channel(dev, ch, error, reset_ch);
642 reset_channel(dev, ch);
644 setbits32(priv->chan[ch].reg + TALITOS_CCCR,
646 setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0);
647 while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) &
648 TALITOS2_CCCR_CONT) && --timeout)
651 dev_err(dev, "failed to restart channel %d\n",
657 if (reset_dev || (is_sec1 && isr & ~TALITOS1_ISR_4CHERR) ||
658 (!is_sec1 && isr & ~TALITOS2_ISR_4CHERR) || isr_lo) {
659 if (is_sec1 && (isr_lo & TALITOS1_ISR_TEA_ERR))
660 dev_err(dev, "TEA error: ISR 0x%08x_%08x\n",
663 dev_err(dev, "done overflow, internal time out, or "
664 "rngu error: ISR 0x%08x_%08x\n", isr, isr_lo);
666 /* purge request queues */
667 for (ch = 0; ch < priv->num_channels; ch++)
668 flush_channel(dev, ch, -EIO, 1);
670 /* reset and reinitialize the device */
675 #define DEF_TALITOS1_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \
676 static irqreturn_t talitos1_interrupt_##name(int irq, void *data) \
678 struct device *dev = data; \
679 struct talitos_private *priv = dev_get_drvdata(dev); \
681 unsigned long flags; \
683 spin_lock_irqsave(&priv->reg_lock, flags); \
684 isr = in_be32(priv->reg + TALITOS_ISR); \
685 isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \
686 /* Acknowledge interrupt */ \
687 out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \
688 out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \
690 if (unlikely(isr & ch_err_mask || isr_lo & TALITOS1_IMR_LO_INIT)) { \
691 spin_unlock_irqrestore(&priv->reg_lock, flags); \
692 talitos_error(dev, isr & ch_err_mask, isr_lo); \
695 if (likely(isr & ch_done_mask)) { \
696 /* mask further done interrupts. */ \
697 setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \
698 /* done_task will unmask done interrupts at exit */ \
699 tasklet_schedule(&priv->done_task[tlet]); \
701 spin_unlock_irqrestore(&priv->reg_lock, flags); \
704 return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \
708 DEF_TALITOS1_INTERRUPT(4ch, TALITOS1_ISR_4CHDONE, TALITOS1_ISR_4CHERR, 0)
710 #define DEF_TALITOS2_INTERRUPT(name, ch_done_mask, ch_err_mask, tlet) \
711 static irqreturn_t talitos2_interrupt_##name(int irq, void *data) \
713 struct device *dev = data; \
714 struct talitos_private *priv = dev_get_drvdata(dev); \
716 unsigned long flags; \
718 spin_lock_irqsave(&priv->reg_lock, flags); \
719 isr = in_be32(priv->reg + TALITOS_ISR); \
720 isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \
721 /* Acknowledge interrupt */ \
722 out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \
723 out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \
725 if (unlikely(isr & ch_err_mask || isr_lo)) { \
726 spin_unlock_irqrestore(&priv->reg_lock, flags); \
727 talitos_error(dev, isr & ch_err_mask, isr_lo); \
730 if (likely(isr & ch_done_mask)) { \
731 /* mask further done interrupts. */ \
732 clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \
733 /* done_task will unmask done interrupts at exit */ \
734 tasklet_schedule(&priv->done_task[tlet]); \
736 spin_unlock_irqrestore(&priv->reg_lock, flags); \
739 return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \
743 DEF_TALITOS2_INTERRUPT(4ch, TALITOS2_ISR_4CHDONE, TALITOS2_ISR_4CHERR, 0)
744 DEF_TALITOS2_INTERRUPT(ch0_2, TALITOS2_ISR_CH_0_2_DONE, TALITOS2_ISR_CH_0_2_ERR,
746 DEF_TALITOS2_INTERRUPT(ch1_3, TALITOS2_ISR_CH_1_3_DONE, TALITOS2_ISR_CH_1_3_ERR,
752 static int talitos_rng_data_present(struct hwrng *rng, int wait)
754 struct device *dev = (struct device *)rng->priv;
755 struct talitos_private *priv = dev_get_drvdata(dev);
759 for (i = 0; i < 20; i++) {
760 ofl = in_be32(priv->reg_rngu + TALITOS_EUSR_LO) &
761 TALITOS_RNGUSR_LO_OFL;
770 static int talitos_rng_data_read(struct hwrng *rng, u32 *data)
772 struct device *dev = (struct device *)rng->priv;
773 struct talitos_private *priv = dev_get_drvdata(dev);
775 /* rng fifo requires 64-bit accesses */
776 *data = in_be32(priv->reg_rngu + TALITOS_EU_FIFO);
777 *data = in_be32(priv->reg_rngu + TALITOS_EU_FIFO_LO);
782 static int talitos_rng_init(struct hwrng *rng)
784 struct device *dev = (struct device *)rng->priv;
785 struct talitos_private *priv = dev_get_drvdata(dev);
786 unsigned int timeout = TALITOS_TIMEOUT;
788 setbits32(priv->reg_rngu + TALITOS_EURCR_LO, TALITOS_RNGURCR_LO_SR);
789 while (!(in_be32(priv->reg_rngu + TALITOS_EUSR_LO)
790 & TALITOS_RNGUSR_LO_RD)
794 dev_err(dev, "failed to reset rng hw\n");
798 /* start generating */
799 setbits32(priv->reg_rngu + TALITOS_EUDSR_LO, 0);
804 static int talitos_register_rng(struct device *dev)
806 struct talitos_private *priv = dev_get_drvdata(dev);
809 priv->rng.name = dev_driver_string(dev),
810 priv->rng.init = talitos_rng_init,
811 priv->rng.data_present = talitos_rng_data_present,
812 priv->rng.data_read = talitos_rng_data_read,
813 priv->rng.priv = (unsigned long)dev;
815 err = hwrng_register(&priv->rng);
817 priv->rng_registered = true;
822 static void talitos_unregister_rng(struct device *dev)
824 struct talitos_private *priv = dev_get_drvdata(dev);
826 if (!priv->rng_registered)
829 hwrng_unregister(&priv->rng);
830 priv->rng_registered = false;
836 #define TALITOS_CRA_PRIORITY 3000
838 * Defines a priority for doing AEAD with descriptors type
839 * HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP
841 #define TALITOS_CRA_PRIORITY_AEAD_HSNA (TALITOS_CRA_PRIORITY - 1)
842 #ifdef CONFIG_CRYPTO_DEV_TALITOS2
843 #define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
845 #define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA256_BLOCK_SIZE)
847 #define TALITOS_MAX_IV_LENGTH 16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
852 __be32 desc_hdr_template;
853 u8 key[TALITOS_MAX_KEY_SIZE];
854 u8 iv[TALITOS_MAX_IV_LENGTH];
857 unsigned int enckeylen;
858 unsigned int authkeylen;
861 #define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
862 #define TALITOS_MDEU_MAX_CONTEXT_SIZE TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512
864 struct talitos_ahash_req_ctx {
865 u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)];
866 unsigned int hw_context_size;
867 u8 buf[2][HASH_MAX_BLOCK_SIZE];
872 unsigned int to_hash_later;
874 struct scatterlist bufsl[2];
875 struct scatterlist *psrc;
878 struct talitos_export_state {
879 u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)];
880 u8 buf[HASH_MAX_BLOCK_SIZE];
884 unsigned int to_hash_later;
888 static int aead_setkey(struct crypto_aead *authenc,
889 const u8 *key, unsigned int keylen)
891 struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
892 struct device *dev = ctx->dev;
893 struct crypto_authenc_keys keys;
895 if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
898 if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE)
902 dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
904 memcpy(ctx->key, keys.authkey, keys.authkeylen);
905 memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen);
907 ctx->keylen = keys.authkeylen + keys.enckeylen;
908 ctx->enckeylen = keys.enckeylen;
909 ctx->authkeylen = keys.authkeylen;
910 ctx->dma_key = dma_map_single(dev, ctx->key, ctx->keylen,
913 memzero_explicit(&keys, sizeof(keys));
917 crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
918 memzero_explicit(&keys, sizeof(keys));
922 static int aead_des3_setkey(struct crypto_aead *authenc,
923 const u8 *key, unsigned int keylen)
925 struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
926 struct device *dev = ctx->dev;
927 struct crypto_authenc_keys keys;
930 err = crypto_authenc_extractkeys(&keys, key, keylen);
935 if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE)
938 err = verify_aead_des3_key(authenc, keys.enckey, keys.enckeylen);
943 dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
945 memcpy(ctx->key, keys.authkey, keys.authkeylen);
946 memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen);
948 ctx->keylen = keys.authkeylen + keys.enckeylen;
949 ctx->enckeylen = keys.enckeylen;
950 ctx->authkeylen = keys.authkeylen;
951 ctx->dma_key = dma_map_single(dev, ctx->key, ctx->keylen,
955 memzero_explicit(&keys, sizeof(keys));
959 crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
963 static void talitos_sg_unmap(struct device *dev,
964 struct talitos_edesc *edesc,
965 struct scatterlist *src,
966 struct scatterlist *dst,
967 unsigned int len, unsigned int offset)
969 struct talitos_private *priv = dev_get_drvdata(dev);
970 bool is_sec1 = has_ftr_sec1(priv);
971 unsigned int src_nents = edesc->src_nents ? : 1;
972 unsigned int dst_nents = edesc->dst_nents ? : 1;
974 if (is_sec1 && dst && dst_nents > 1) {
975 dma_sync_single_for_device(dev, edesc->dma_link_tbl + offset,
976 len, DMA_FROM_DEVICE);
977 sg_pcopy_from_buffer(dst, dst_nents, edesc->buf + offset, len,
981 if (src_nents == 1 || !is_sec1)
982 dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
984 if (dst && (dst_nents == 1 || !is_sec1))
985 dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE);
986 } else if (src_nents == 1 || !is_sec1) {
987 dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
991 static void ipsec_esp_unmap(struct device *dev,
992 struct talitos_edesc *edesc,
993 struct aead_request *areq, bool encrypt)
995 struct crypto_aead *aead = crypto_aead_reqtfm(areq);
996 struct talitos_ctx *ctx = crypto_aead_ctx(aead);
997 unsigned int ivsize = crypto_aead_ivsize(aead);
998 unsigned int authsize = crypto_aead_authsize(aead);
999 unsigned int cryptlen = areq->cryptlen - (encrypt ? 0 : authsize);
1000 bool is_ipsec_esp = edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP;
1001 struct talitos_ptr *civ_ptr = &edesc->desc.ptr[is_ipsec_esp ? 2 : 3];
1004 unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6],
1006 unmap_single_talitos_ptr(dev, civ_ptr, DMA_TO_DEVICE);
1008 talitos_sg_unmap(dev, edesc, areq->src, areq->dst,
1009 cryptlen + authsize, areq->assoclen);
1012 dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
1015 if (!is_ipsec_esp) {
1016 unsigned int dst_nents = edesc->dst_nents ? : 1;
1018 sg_pcopy_to_buffer(areq->dst, dst_nents, ctx->iv, ivsize,
1019 areq->assoclen + cryptlen - ivsize);
1024 * ipsec_esp descriptor callbacks
1026 static void ipsec_esp_encrypt_done(struct device *dev,
1027 struct talitos_desc *desc, void *context,
1030 struct aead_request *areq = context;
1031 struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
1032 unsigned int ivsize = crypto_aead_ivsize(authenc);
1033 struct talitos_edesc *edesc;
1035 edesc = container_of(desc, struct talitos_edesc, desc);
1037 ipsec_esp_unmap(dev, edesc, areq, true);
1039 dma_unmap_single(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
1043 aead_request_complete(areq, err);
1046 static void ipsec_esp_decrypt_swauth_done(struct device *dev,
1047 struct talitos_desc *desc,
1048 void *context, int err)
1050 struct aead_request *req = context;
1051 struct crypto_aead *authenc = crypto_aead_reqtfm(req);
1052 unsigned int authsize = crypto_aead_authsize(authenc);
1053 struct talitos_edesc *edesc;
1056 edesc = container_of(desc, struct talitos_edesc, desc);
1058 ipsec_esp_unmap(dev, edesc, req, false);
1062 oicv = edesc->buf + edesc->dma_len;
1063 icv = oicv - authsize;
1065 err = crypto_memneq(oicv, icv, authsize) ? -EBADMSG : 0;
1070 aead_request_complete(req, err);
1073 static void ipsec_esp_decrypt_hwauth_done(struct device *dev,
1074 struct talitos_desc *desc,
1075 void *context, int err)
1077 struct aead_request *req = context;
1078 struct talitos_edesc *edesc;
1080 edesc = container_of(desc, struct talitos_edesc, desc);
1082 ipsec_esp_unmap(dev, edesc, req, false);
1084 /* check ICV auth status */
1085 if (!err && ((desc->hdr_lo & DESC_HDR_LO_ICCR1_MASK) !=
1086 DESC_HDR_LO_ICCR1_PASS))
1091 aead_request_complete(req, err);
1095 * convert scatterlist to SEC h/w link table format
1096 * stop at cryptlen bytes
1098 static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
1099 unsigned int offset, int datalen, int elen,
1100 struct talitos_ptr *link_tbl_ptr)
1102 int n_sg = elen ? sg_count + 1 : sg_count;
1104 int cryptlen = datalen + elen;
1106 while (cryptlen && sg && n_sg--) {
1107 unsigned int len = sg_dma_len(sg);
1109 if (offset >= len) {
1119 if (datalen > 0 && len > datalen) {
1120 to_talitos_ptr(link_tbl_ptr + count,
1121 sg_dma_address(sg) + offset, datalen, 0);
1122 to_talitos_ptr_ext_set(link_tbl_ptr + count, 0, 0);
1127 to_talitos_ptr(link_tbl_ptr + count,
1128 sg_dma_address(sg) + offset, len, 0);
1129 to_talitos_ptr_ext_set(link_tbl_ptr + count, 0, 0);
1139 /* tag end of link table */
1141 to_talitos_ptr_ext_set(link_tbl_ptr + count - 1,
1142 DESC_PTR_LNKTBL_RET, 0);
1147 static int talitos_sg_map_ext(struct device *dev, struct scatterlist *src,
1148 unsigned int len, struct talitos_edesc *edesc,
1149 struct talitos_ptr *ptr, int sg_count,
1150 unsigned int offset, int tbl_off, int elen,
1153 struct talitos_private *priv = dev_get_drvdata(dev);
1154 bool is_sec1 = has_ftr_sec1(priv);
1157 to_talitos_ptr(ptr, 0, 0, is_sec1);
1160 to_talitos_ptr_ext_set(ptr, elen, is_sec1);
1161 if (sg_count == 1 && !force) {
1162 to_talitos_ptr(ptr, sg_dma_address(src) + offset, len, is_sec1);
1166 to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, len, is_sec1);
1169 sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len, elen,
1170 &edesc->link_tbl[tbl_off]);
1171 if (sg_count == 1 && !force) {
1172 /* Only one segment now, so no link tbl needed*/
1173 copy_talitos_ptr(ptr, &edesc->link_tbl[tbl_off], is_sec1);
1176 to_talitos_ptr(ptr, edesc->dma_link_tbl +
1177 tbl_off * sizeof(struct talitos_ptr), len, is_sec1);
1178 to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, is_sec1);
1183 static int talitos_sg_map(struct device *dev, struct scatterlist *src,
1184 unsigned int len, struct talitos_edesc *edesc,
1185 struct talitos_ptr *ptr, int sg_count,
1186 unsigned int offset, int tbl_off)
1188 return talitos_sg_map_ext(dev, src, len, edesc, ptr, sg_count, offset,
1193 * fill in and submit ipsec_esp descriptor
1195 static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
1197 void (*callback)(struct device *dev,
1198 struct talitos_desc *desc,
1199 void *context, int error))
1201 struct crypto_aead *aead = crypto_aead_reqtfm(areq);
1202 unsigned int authsize = crypto_aead_authsize(aead);
1203 struct talitos_ctx *ctx = crypto_aead_ctx(aead);
1204 struct device *dev = ctx->dev;
1205 struct talitos_desc *desc = &edesc->desc;
1206 unsigned int cryptlen = areq->cryptlen - (encrypt ? 0 : authsize);
1207 unsigned int ivsize = crypto_aead_ivsize(aead);
1211 bool sync_needed = false;
1212 struct talitos_private *priv = dev_get_drvdata(dev);
1213 bool is_sec1 = has_ftr_sec1(priv);
1214 bool is_ipsec_esp = desc->hdr & DESC_HDR_TYPE_IPSEC_ESP;
1215 struct talitos_ptr *civ_ptr = &desc->ptr[is_ipsec_esp ? 2 : 3];
1216 struct talitos_ptr *ckey_ptr = &desc->ptr[is_ipsec_esp ? 3 : 2];
1217 dma_addr_t dma_icv = edesc->dma_link_tbl + edesc->dma_len - authsize;
1220 to_talitos_ptr(&desc->ptr[0], ctx->dma_key, ctx->authkeylen, is_sec1);
1222 sg_count = edesc->src_nents ?: 1;
1223 if (is_sec1 && sg_count > 1)
1224 sg_copy_to_buffer(areq->src, sg_count, edesc->buf,
1225 areq->assoclen + cryptlen);
1227 sg_count = dma_map_sg(dev, areq->src, sg_count,
1228 (areq->src == areq->dst) ?
1229 DMA_BIDIRECTIONAL : DMA_TO_DEVICE);
1232 ret = talitos_sg_map(dev, areq->src, areq->assoclen, edesc,
1233 &desc->ptr[1], sg_count, 0, tbl_off);
1241 to_talitos_ptr(civ_ptr, edesc->iv_dma, ivsize, is_sec1);
1244 to_talitos_ptr(ckey_ptr, ctx->dma_key + ctx->authkeylen,
1245 ctx->enckeylen, is_sec1);
1249 * map and adjust cipher len to aead request cryptlen.
1250 * extent is bytes of HMAC postpended to ciphertext,
1251 * typically 12 for ipsec
1253 if (is_ipsec_esp && (desc->hdr & DESC_HDR_MODE1_MDEU_CICV))
1256 ret = talitos_sg_map_ext(dev, areq->src, cryptlen, edesc, &desc->ptr[4],
1257 sg_count, areq->assoclen, tbl_off, elen,
1266 if (areq->src != areq->dst) {
1267 sg_count = edesc->dst_nents ? : 1;
1268 if (!is_sec1 || sg_count == 1)
1269 dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE);
1272 if (is_ipsec_esp && encrypt)
1276 ret = talitos_sg_map_ext(dev, areq->dst, cryptlen, edesc, &desc->ptr[5],
1277 sg_count, areq->assoclen, tbl_off, elen,
1278 is_ipsec_esp && !encrypt);
1281 if (!encrypt && is_ipsec_esp) {
1282 struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
1284 /* Add an entry to the link table for ICV data */
1285 to_talitos_ptr_ext_set(tbl_ptr - 1, 0, is_sec1);
1286 to_talitos_ptr_ext_set(tbl_ptr, DESC_PTR_LNKTBL_RET, is_sec1);
1288 /* icv data follows link tables */
1289 to_talitos_ptr(tbl_ptr, dma_icv, authsize, is_sec1);
1290 to_talitos_ptr_ext_or(&desc->ptr[5], authsize, is_sec1);
1292 } else if (!encrypt) {
1293 to_talitos_ptr(&desc->ptr[6], dma_icv, authsize, is_sec1);
1295 } else if (!is_ipsec_esp) {
1296 talitos_sg_map(dev, areq->dst, authsize, edesc, &desc->ptr[6],
1297 sg_count, areq->assoclen + cryptlen, tbl_off);
1302 map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
1306 dma_sync_single_for_device(dev, edesc->dma_link_tbl,
1310 ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
1311 if (ret != -EINPROGRESS) {
1312 ipsec_esp_unmap(dev, edesc, areq, encrypt);
1319 * allocate and map the extended descriptor
1321 static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
1322 struct scatterlist *src,
1323 struct scatterlist *dst,
1325 unsigned int assoclen,
1326 unsigned int cryptlen,
1327 unsigned int authsize,
1328 unsigned int ivsize,
1333 struct talitos_edesc *edesc;
1334 int src_nents, dst_nents, alloc_len, dma_len, src_len, dst_len;
1335 dma_addr_t iv_dma = 0;
1336 gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
1338 struct talitos_private *priv = dev_get_drvdata(dev);
1339 bool is_sec1 = has_ftr_sec1(priv);
1340 int max_len = is_sec1 ? TALITOS1_MAX_DATA_LEN : TALITOS2_MAX_DATA_LEN;
1342 if (cryptlen + authsize > max_len) {
1343 dev_err(dev, "length exceeds h/w max limit\n");
1344 return ERR_PTR(-EINVAL);
1347 if (!dst || dst == src) {
1348 src_len = assoclen + cryptlen + authsize;
1349 src_nents = sg_nents_for_len(src, src_len);
1350 if (src_nents < 0) {
1351 dev_err(dev, "Invalid number of src SG.\n");
1352 return ERR_PTR(-EINVAL);
1354 src_nents = (src_nents == 1) ? 0 : src_nents;
1355 dst_nents = dst ? src_nents : 0;
1357 } else { /* dst && dst != src*/
1358 src_len = assoclen + cryptlen + (encrypt ? 0 : authsize);
1359 src_nents = sg_nents_for_len(src, src_len);
1360 if (src_nents < 0) {
1361 dev_err(dev, "Invalid number of src SG.\n");
1362 return ERR_PTR(-EINVAL);
1364 src_nents = (src_nents == 1) ? 0 : src_nents;
1365 dst_len = assoclen + cryptlen + (encrypt ? authsize : 0);
1366 dst_nents = sg_nents_for_len(dst, dst_len);
1367 if (dst_nents < 0) {
1368 dev_err(dev, "Invalid number of dst SG.\n");
1369 return ERR_PTR(-EINVAL);
1371 dst_nents = (dst_nents == 1) ? 0 : dst_nents;
1375 * allocate space for base edesc plus the link tables,
1376 * allowing for two separate entries for AD and generated ICV (+ 2),
1377 * and space for two sets of ICVs (stashed and generated)
1379 alloc_len = sizeof(struct talitos_edesc);
1380 if (src_nents || dst_nents || !encrypt) {
1382 dma_len = (src_nents ? src_len : 0) +
1383 (dst_nents ? dst_len : 0) + authsize;
1385 dma_len = (src_nents + dst_nents + 2) *
1386 sizeof(struct talitos_ptr) + authsize;
1387 alloc_len += dma_len;
1391 alloc_len += icv_stashing ? authsize : 0;
1393 /* if its a ahash, add space for a second desc next to the first one */
1394 if (is_sec1 && !dst)
1395 alloc_len += sizeof(struct talitos_desc);
1396 alloc_len += ivsize;
1398 edesc = kmalloc(alloc_len, GFP_DMA | flags);
1400 return ERR_PTR(-ENOMEM);
1402 iv = memcpy(((u8 *)edesc) + alloc_len - ivsize, iv, ivsize);
1403 iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE);
1405 memset(&edesc->desc, 0, sizeof(edesc->desc));
1407 edesc->src_nents = src_nents;
1408 edesc->dst_nents = dst_nents;
1409 edesc->iv_dma = iv_dma;
1410 edesc->dma_len = dma_len;
1412 edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
1419 static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
1420 int icv_stashing, bool encrypt)
1422 struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
1423 unsigned int authsize = crypto_aead_authsize(authenc);
1424 struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
1425 unsigned int ivsize = crypto_aead_ivsize(authenc);
1426 unsigned int cryptlen = areq->cryptlen - (encrypt ? 0 : authsize);
1428 return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
1429 iv, areq->assoclen, cryptlen,
1430 authsize, ivsize, icv_stashing,
1431 areq->base.flags, encrypt);
1434 static int aead_encrypt(struct aead_request *req)
1436 struct crypto_aead *authenc = crypto_aead_reqtfm(req);
1437 struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
1438 struct talitos_edesc *edesc;
1440 /* allocate extended descriptor */
1441 edesc = aead_edesc_alloc(req, req->iv, 0, true);
1443 return PTR_ERR(edesc);
1446 edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
1448 return ipsec_esp(edesc, req, true, ipsec_esp_encrypt_done);
1451 static int aead_decrypt(struct aead_request *req)
1453 struct crypto_aead *authenc = crypto_aead_reqtfm(req);
1454 unsigned int authsize = crypto_aead_authsize(authenc);
1455 struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
1456 struct talitos_private *priv = dev_get_drvdata(ctx->dev);
1457 struct talitos_edesc *edesc;
1460 /* allocate extended descriptor */
1461 edesc = aead_edesc_alloc(req, req->iv, 1, false);
1463 return PTR_ERR(edesc);
1465 if ((edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP) &&
1466 (priv->features & TALITOS_FTR_HW_AUTH_CHECK) &&
1467 ((!edesc->src_nents && !edesc->dst_nents) ||
1468 priv->features & TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT)) {
1470 /* decrypt and check the ICV */
1471 edesc->desc.hdr = ctx->desc_hdr_template |
1472 DESC_HDR_DIR_INBOUND |
1473 DESC_HDR_MODE1_MDEU_CICV;
1475 /* reset integrity check result bits */
1477 return ipsec_esp(edesc, req, false,
1478 ipsec_esp_decrypt_hwauth_done);
1481 /* Have to check the ICV with software */
1482 edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND;
1484 /* stash incoming ICV for later cmp with ICV generated by the h/w */
1485 icvdata = edesc->buf + edesc->dma_len;
1487 sg_pcopy_to_buffer(req->src, edesc->src_nents ? : 1, icvdata, authsize,
1488 req->assoclen + req->cryptlen - authsize);
1490 return ipsec_esp(edesc, req, false, ipsec_esp_decrypt_swauth_done);
1493 static int skcipher_setkey(struct crypto_skcipher *cipher,
1494 const u8 *key, unsigned int keylen)
1496 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1497 struct device *dev = ctx->dev;
1500 dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
1502 memcpy(&ctx->key, key, keylen);
1503 ctx->keylen = keylen;
1505 ctx->dma_key = dma_map_single(dev, ctx->key, keylen, DMA_TO_DEVICE);
1510 static int skcipher_des_setkey(struct crypto_skcipher *cipher,
1511 const u8 *key, unsigned int keylen)
1513 return verify_skcipher_des_key(cipher, key) ?:
1514 skcipher_setkey(cipher, key, keylen);
1517 static int skcipher_des3_setkey(struct crypto_skcipher *cipher,
1518 const u8 *key, unsigned int keylen)
1520 return verify_skcipher_des3_key(cipher, key) ?:
1521 skcipher_setkey(cipher, key, keylen);
1524 static int skcipher_aes_setkey(struct crypto_skcipher *cipher,
1525 const u8 *key, unsigned int keylen)
1527 if (keylen == AES_KEYSIZE_128 || keylen == AES_KEYSIZE_192 ||
1528 keylen == AES_KEYSIZE_256)
1529 return skcipher_setkey(cipher, key, keylen);
1531 crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
1536 static void common_nonsnoop_unmap(struct device *dev,
1537 struct talitos_edesc *edesc,
1538 struct skcipher_request *areq)
1540 unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
1542 talitos_sg_unmap(dev, edesc, areq->src, areq->dst, areq->cryptlen, 0);
1543 unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], DMA_TO_DEVICE);
1546 dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
1550 static void skcipher_done(struct device *dev,
1551 struct talitos_desc *desc, void *context,
1554 struct skcipher_request *areq = context;
1555 struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
1556 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1557 unsigned int ivsize = crypto_skcipher_ivsize(cipher);
1558 struct talitos_edesc *edesc;
1560 edesc = container_of(desc, struct talitos_edesc, desc);
1562 common_nonsnoop_unmap(dev, edesc, areq);
1563 memcpy(areq->iv, ctx->iv, ivsize);
1567 areq->base.complete(&areq->base, err);
1570 static int common_nonsnoop(struct talitos_edesc *edesc,
1571 struct skcipher_request *areq,
1572 void (*callback) (struct device *dev,
1573 struct talitos_desc *desc,
1574 void *context, int error))
1576 struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
1577 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1578 struct device *dev = ctx->dev;
1579 struct talitos_desc *desc = &edesc->desc;
1580 unsigned int cryptlen = areq->cryptlen;
1581 unsigned int ivsize = crypto_skcipher_ivsize(cipher);
1583 bool sync_needed = false;
1584 struct talitos_private *priv = dev_get_drvdata(dev);
1585 bool is_sec1 = has_ftr_sec1(priv);
1587 /* first DWORD empty */
1590 to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, ivsize, is_sec1);
1593 to_talitos_ptr(&desc->ptr[2], ctx->dma_key, ctx->keylen, is_sec1);
1595 sg_count = edesc->src_nents ?: 1;
1596 if (is_sec1 && sg_count > 1)
1597 sg_copy_to_buffer(areq->src, sg_count, edesc->buf,
1600 sg_count = dma_map_sg(dev, areq->src, sg_count,
1601 (areq->src == areq->dst) ?
1602 DMA_BIDIRECTIONAL : DMA_TO_DEVICE);
1606 sg_count = talitos_sg_map(dev, areq->src, cryptlen, edesc,
1607 &desc->ptr[3], sg_count, 0, 0);
1612 if (areq->src != areq->dst) {
1613 sg_count = edesc->dst_nents ? : 1;
1614 if (!is_sec1 || sg_count == 1)
1615 dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE);
1618 ret = talitos_sg_map(dev, areq->dst, cryptlen, edesc, &desc->ptr[4],
1619 sg_count, 0, (edesc->src_nents + 1));
1624 map_single_talitos_ptr(dev, &desc->ptr[5], ivsize, ctx->iv,
1627 /* last DWORD empty */
1630 dma_sync_single_for_device(dev, edesc->dma_link_tbl,
1631 edesc->dma_len, DMA_BIDIRECTIONAL);
1633 ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
1634 if (ret != -EINPROGRESS) {
1635 common_nonsnoop_unmap(dev, edesc, areq);
1641 static struct talitos_edesc *skcipher_edesc_alloc(struct skcipher_request *
1644 struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
1645 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1646 unsigned int ivsize = crypto_skcipher_ivsize(cipher);
1648 return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
1649 areq->iv, 0, areq->cryptlen, 0, ivsize, 0,
1650 areq->base.flags, encrypt);
1653 static int skcipher_encrypt(struct skcipher_request *areq)
1655 struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
1656 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1657 struct talitos_edesc *edesc;
1658 unsigned int blocksize =
1659 crypto_tfm_alg_blocksize(crypto_skcipher_tfm(cipher));
1661 if (!areq->cryptlen)
1664 if (areq->cryptlen % blocksize)
1667 /* allocate extended descriptor */
1668 edesc = skcipher_edesc_alloc(areq, true);
1670 return PTR_ERR(edesc);
1673 edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
1675 return common_nonsnoop(edesc, areq, skcipher_done);
1678 static int skcipher_decrypt(struct skcipher_request *areq)
1680 struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(areq);
1681 struct talitos_ctx *ctx = crypto_skcipher_ctx(cipher);
1682 struct talitos_edesc *edesc;
1683 unsigned int blocksize =
1684 crypto_tfm_alg_blocksize(crypto_skcipher_tfm(cipher));
1686 if (!areq->cryptlen)
1689 if (areq->cryptlen % blocksize)
1692 /* allocate extended descriptor */
1693 edesc = skcipher_edesc_alloc(areq, false);
1695 return PTR_ERR(edesc);
1697 edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND;
1699 return common_nonsnoop(edesc, areq, skcipher_done);
1702 static void common_nonsnoop_hash_unmap(struct device *dev,
1703 struct talitos_edesc *edesc,
1704 struct ahash_request *areq)
1706 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1707 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
1708 struct talitos_private *priv = dev_get_drvdata(dev);
1709 bool is_sec1 = has_ftr_sec1(priv);
1710 struct talitos_desc *desc = &edesc->desc;
1711 struct talitos_desc *desc2 = (struct talitos_desc *)
1712 (edesc->buf + edesc->dma_len);
1714 unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
1715 if (desc->next_desc &&
1716 desc->ptr[5].ptr != desc2->ptr[5].ptr)
1717 unmap_single_talitos_ptr(dev, &desc2->ptr[5], DMA_FROM_DEVICE);
1719 memcpy(areq->result, req_ctx->hw_context,
1720 crypto_ahash_digestsize(tfm));
1723 talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
1725 /* When using hashctx-in, must unmap it. */
1726 if (from_talitos_ptr_len(&edesc->desc.ptr[1], is_sec1))
1727 unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1],
1729 else if (desc->next_desc)
1730 unmap_single_talitos_ptr(dev, &desc2->ptr[1],
1733 if (is_sec1 && req_ctx->nbuf)
1734 unmap_single_talitos_ptr(dev, &desc->ptr[3],
1738 dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
1741 if (edesc->desc.next_desc)
1742 dma_unmap_single(dev, be32_to_cpu(edesc->desc.next_desc),
1743 TALITOS_DESC_SIZE, DMA_BIDIRECTIONAL);
1746 static void ahash_done(struct device *dev,
1747 struct talitos_desc *desc, void *context,
1750 struct ahash_request *areq = context;
1751 struct talitos_edesc *edesc =
1752 container_of(desc, struct talitos_edesc, desc);
1753 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1755 if (!req_ctx->last && req_ctx->to_hash_later) {
1756 /* Position any partial block for next update/final/finup */
1757 req_ctx->buf_idx = (req_ctx->buf_idx + 1) & 1;
1758 req_ctx->nbuf = req_ctx->to_hash_later;
1760 common_nonsnoop_hash_unmap(dev, edesc, areq);
1764 areq->base.complete(&areq->base, err);
1768 * SEC1 doesn't like hashing of 0 sized message, so we do the padding
1769 * ourself and submit a padded block
1771 static void talitos_handle_buggy_hash(struct talitos_ctx *ctx,
1772 struct talitos_edesc *edesc,
1773 struct talitos_ptr *ptr)
1775 static u8 padded_hash[64] = {
1776 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1777 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1778 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1779 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1782 pr_err_once("Bug in SEC1, padding ourself\n");
1783 edesc->desc.hdr &= ~DESC_HDR_MODE0_MDEU_PAD;
1784 map_single_talitos_ptr(ctx->dev, ptr, sizeof(padded_hash),
1785 (char *)padded_hash, DMA_TO_DEVICE);
1788 static int common_nonsnoop_hash(struct talitos_edesc *edesc,
1789 struct ahash_request *areq, unsigned int length,
1790 void (*callback) (struct device *dev,
1791 struct talitos_desc *desc,
1792 void *context, int error))
1794 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
1795 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
1796 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1797 struct device *dev = ctx->dev;
1798 struct talitos_desc *desc = &edesc->desc;
1800 bool sync_needed = false;
1801 struct talitos_private *priv = dev_get_drvdata(dev);
1802 bool is_sec1 = has_ftr_sec1(priv);
1805 /* first DWORD empty */
1807 /* hash context in */
1808 if (!req_ctx->first || req_ctx->swinit) {
1809 map_single_talitos_ptr_nosync(dev, &desc->ptr[1],
1810 req_ctx->hw_context_size,
1811 req_ctx->hw_context,
1813 req_ctx->swinit = 0;
1815 /* Indicate next op is not the first. */
1820 to_talitos_ptr(&desc->ptr[2], ctx->dma_key, ctx->keylen,
1823 if (is_sec1 && req_ctx->nbuf)
1824 length -= req_ctx->nbuf;
1826 sg_count = edesc->src_nents ?: 1;
1827 if (is_sec1 && sg_count > 1)
1828 sg_copy_to_buffer(req_ctx->psrc, sg_count, edesc->buf, length);
1830 sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count,
1835 if (is_sec1 && req_ctx->nbuf) {
1836 map_single_talitos_ptr(dev, &desc->ptr[3], req_ctx->nbuf,
1837 req_ctx->buf[req_ctx->buf_idx],
1840 sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
1841 &desc->ptr[3], sg_count, 0, 0);
1846 /* fifth DWORD empty */
1848 /* hash/HMAC out -or- hash context out */
1850 map_single_talitos_ptr(dev, &desc->ptr[5],
1851 crypto_ahash_digestsize(tfm),
1852 req_ctx->hw_context, DMA_FROM_DEVICE);
1854 map_single_talitos_ptr_nosync(dev, &desc->ptr[5],
1855 req_ctx->hw_context_size,
1856 req_ctx->hw_context,
1859 /* last DWORD empty */
1861 if (is_sec1 && from_talitos_ptr_len(&desc->ptr[3], true) == 0)
1862 talitos_handle_buggy_hash(ctx, edesc, &desc->ptr[3]);
1864 if (is_sec1 && req_ctx->nbuf && length) {
1865 struct talitos_desc *desc2 = (struct talitos_desc *)
1866 (edesc->buf + edesc->dma_len);
1867 dma_addr_t next_desc;
1869 memset(desc2, 0, sizeof(*desc2));
1870 desc2->hdr = desc->hdr;
1871 desc2->hdr &= ~DESC_HDR_MODE0_MDEU_INIT;
1872 desc2->hdr1 = desc2->hdr;
1873 desc->hdr &= ~DESC_HDR_MODE0_MDEU_PAD;
1874 desc->hdr |= DESC_HDR_MODE0_MDEU_CONT;
1875 desc->hdr &= ~DESC_HDR_DONE_NOTIFY;
1877 if (desc->ptr[1].ptr)
1878 copy_talitos_ptr(&desc2->ptr[1], &desc->ptr[1],
1881 map_single_talitos_ptr_nosync(dev, &desc2->ptr[1],
1882 req_ctx->hw_context_size,
1883 req_ctx->hw_context,
1885 copy_talitos_ptr(&desc2->ptr[2], &desc->ptr[2], is_sec1);
1886 sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
1887 &desc2->ptr[3], sg_count, 0, 0);
1890 copy_talitos_ptr(&desc2->ptr[5], &desc->ptr[5], is_sec1);
1892 map_single_talitos_ptr_nosync(dev, &desc->ptr[5],
1893 req_ctx->hw_context_size,
1894 req_ctx->hw_context,
1897 next_desc = dma_map_single(dev, &desc2->hdr1, TALITOS_DESC_SIZE,
1899 desc->next_desc = cpu_to_be32(next_desc);
1903 dma_sync_single_for_device(dev, edesc->dma_link_tbl,
1904 edesc->dma_len, DMA_BIDIRECTIONAL);
1906 ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
1907 if (ret != -EINPROGRESS) {
1908 common_nonsnoop_hash_unmap(dev, edesc, areq);
1914 static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
1915 unsigned int nbytes)
1917 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
1918 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
1919 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1920 struct talitos_private *priv = dev_get_drvdata(ctx->dev);
1921 bool is_sec1 = has_ftr_sec1(priv);
1924 nbytes -= req_ctx->nbuf;
1926 return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0,
1927 nbytes, 0, 0, 0, areq->base.flags, false);
1930 static int ahash_init(struct ahash_request *areq)
1932 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
1933 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
1934 struct device *dev = ctx->dev;
1935 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1939 /* Initialize the context */
1940 req_ctx->buf_idx = 0;
1942 req_ctx->first = 1; /* first indicates h/w must init its context */
1943 req_ctx->swinit = 0; /* assume h/w init of context */
1944 size = (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
1945 ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
1946 : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
1947 req_ctx->hw_context_size = size;
1949 dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
1951 dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_TO_DEVICE);
1957 * on h/w without explicit sha224 support, we initialize h/w context
1958 * manually with sha224 constants, and tell it to run sha256.
1960 static int ahash_init_sha224_swinit(struct ahash_request *areq)
1962 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1964 req_ctx->hw_context[0] = SHA224_H0;
1965 req_ctx->hw_context[1] = SHA224_H1;
1966 req_ctx->hw_context[2] = SHA224_H2;
1967 req_ctx->hw_context[3] = SHA224_H3;
1968 req_ctx->hw_context[4] = SHA224_H4;
1969 req_ctx->hw_context[5] = SHA224_H5;
1970 req_ctx->hw_context[6] = SHA224_H6;
1971 req_ctx->hw_context[7] = SHA224_H7;
1973 /* init 64-bit count */
1974 req_ctx->hw_context[8] = 0;
1975 req_ctx->hw_context[9] = 0;
1978 req_ctx->swinit = 1;/* prevent h/w initting context with sha256 values*/
1983 static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
1985 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
1986 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
1987 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1988 struct talitos_edesc *edesc;
1989 unsigned int blocksize =
1990 crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
1991 unsigned int nbytes_to_hash;
1992 unsigned int to_hash_later;
1995 struct device *dev = ctx->dev;
1996 struct talitos_private *priv = dev_get_drvdata(dev);
1997 bool is_sec1 = has_ftr_sec1(priv);
1998 u8 *ctx_buf = req_ctx->buf[req_ctx->buf_idx];
2000 if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
2001 /* Buffer up to one whole block */
2002 nents = sg_nents_for_len(areq->src, nbytes);
2004 dev_err(ctx->dev, "Invalid number of src SG.\n");
2007 sg_copy_to_buffer(areq->src, nents,
2008 ctx_buf + req_ctx->nbuf, nbytes);
2009 req_ctx->nbuf += nbytes;
2013 /* At least (blocksize + 1) bytes are available to hash */
2014 nbytes_to_hash = nbytes + req_ctx->nbuf;
2015 to_hash_later = nbytes_to_hash & (blocksize - 1);
2019 else if (to_hash_later)
2020 /* There is a partial block. Hash the full block(s) now */
2021 nbytes_to_hash -= to_hash_later;
2023 /* Keep one block buffered */
2024 nbytes_to_hash -= blocksize;
2025 to_hash_later = blocksize;
2028 /* Chain in any previously buffered data */
2029 if (!is_sec1 && req_ctx->nbuf) {
2030 nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1;
2031 sg_init_table(req_ctx->bufsl, nsg);
2032 sg_set_buf(req_ctx->bufsl, ctx_buf, req_ctx->nbuf);
2034 sg_chain(req_ctx->bufsl, 2, areq->src);
2035 req_ctx->psrc = req_ctx->bufsl;
2036 } else if (is_sec1 && req_ctx->nbuf && req_ctx->nbuf < blocksize) {
2039 if (nbytes_to_hash > blocksize)
2040 offset = blocksize - req_ctx->nbuf;
2042 offset = nbytes_to_hash - req_ctx->nbuf;
2043 nents = sg_nents_for_len(areq->src, offset);
2045 dev_err(ctx->dev, "Invalid number of src SG.\n");
2048 sg_copy_to_buffer(areq->src, nents,
2049 ctx_buf + req_ctx->nbuf, offset);
2050 req_ctx->nbuf += offset;
2051 req_ctx->psrc = scatterwalk_ffwd(req_ctx->bufsl, areq->src,
2054 req_ctx->psrc = areq->src;
2056 if (to_hash_later) {
2057 nents = sg_nents_for_len(areq->src, nbytes);
2059 dev_err(ctx->dev, "Invalid number of src SG.\n");
2062 sg_pcopy_to_buffer(areq->src, nents,
2063 req_ctx->buf[(req_ctx->buf_idx + 1) & 1],
2065 nbytes - to_hash_later);
2067 req_ctx->to_hash_later = to_hash_later;
2069 /* Allocate extended descriptor */
2070 edesc = ahash_edesc_alloc(areq, nbytes_to_hash);
2072 return PTR_ERR(edesc);
2074 edesc->desc.hdr = ctx->desc_hdr_template;
2076 /* On last one, request SEC to pad; otherwise continue */
2078 edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_PAD;
2080 edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_CONT;
2082 /* request SEC to INIT hash. */
2083 if (req_ctx->first && !req_ctx->swinit)
2084 edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_INIT;
2086 /* When the tfm context has a keylen, it's an HMAC.
2087 * A first or last (ie. not middle) descriptor must request HMAC.
2089 if (ctx->keylen && (req_ctx->first || req_ctx->last))
2090 edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC;
2092 return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, ahash_done);
2095 static int ahash_update(struct ahash_request *areq)
2097 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2101 return ahash_process_req(areq, areq->nbytes);
2104 static int ahash_final(struct ahash_request *areq)
2106 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2110 return ahash_process_req(areq, 0);
2113 static int ahash_finup(struct ahash_request *areq)
2115 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2119 return ahash_process_req(areq, areq->nbytes);
2122 static int ahash_digest(struct ahash_request *areq)
2124 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2125 struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq);
2130 return ahash_process_req(areq, areq->nbytes);
2133 static int ahash_export(struct ahash_request *areq, void *out)
2135 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2136 struct talitos_export_state *export = out;
2137 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
2138 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
2139 struct device *dev = ctx->dev;
2142 dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
2144 dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_FROM_DEVICE);
2146 memcpy(export->hw_context, req_ctx->hw_context,
2147 req_ctx->hw_context_size);
2148 memcpy(export->buf, req_ctx->buf[req_ctx->buf_idx], req_ctx->nbuf);
2149 export->swinit = req_ctx->swinit;
2150 export->first = req_ctx->first;
2151 export->last = req_ctx->last;
2152 export->to_hash_later = req_ctx->to_hash_later;
2153 export->nbuf = req_ctx->nbuf;
2158 static int ahash_import(struct ahash_request *areq, const void *in)
2160 struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2161 struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
2162 struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
2163 struct device *dev = ctx->dev;
2164 const struct talitos_export_state *export = in;
2168 memset(req_ctx, 0, sizeof(*req_ctx));
2169 size = (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
2170 ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
2171 : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
2172 req_ctx->hw_context_size = size;
2173 memcpy(req_ctx->hw_context, export->hw_context, size);
2174 memcpy(req_ctx->buf[0], export->buf, export->nbuf);
2175 req_ctx->swinit = export->swinit;
2176 req_ctx->first = export->first;
2177 req_ctx->last = export->last;
2178 req_ctx->to_hash_later = export->to_hash_later;
2179 req_ctx->nbuf = export->nbuf;
2181 dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
2183 dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_TO_DEVICE);
2188 static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
2191 struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
2193 struct scatterlist sg[1];
2194 struct ahash_request *req;
2195 struct crypto_wait wait;
2198 crypto_init_wait(&wait);
2200 req = ahash_request_alloc(tfm, GFP_KERNEL);
2204 /* Keep tfm keylen == 0 during hash of the long key */
2206 ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
2207 crypto_req_done, &wait);
2209 sg_init_one(&sg[0], key, keylen);
2211 ahash_request_set_crypt(req, sg, hash, keylen);
2212 ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
2214 ahash_request_free(req);
2219 static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
2220 unsigned int keylen)
2222 struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
2223 struct device *dev = ctx->dev;
2224 unsigned int blocksize =
2225 crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
2226 unsigned int digestsize = crypto_ahash_digestsize(tfm);
2227 unsigned int keysize = keylen;
2228 u8 hash[SHA512_DIGEST_SIZE];
2231 if (keylen <= blocksize)
2232 memcpy(ctx->key, key, keysize);
2234 /* Must get the hash of the long key */
2235 ret = keyhash(tfm, key, keylen, hash);
2238 crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
2242 keysize = digestsize;
2243 memcpy(ctx->key, hash, digestsize);
2247 dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
2249 ctx->keylen = keysize;
2250 ctx->dma_key = dma_map_single(dev, ctx->key, keysize, DMA_TO_DEVICE);
2256 struct talitos_alg_template {
2260 struct skcipher_alg skcipher;
2261 struct ahash_alg hash;
2262 struct aead_alg aead;
2264 __be32 desc_hdr_template;
2267 static struct talitos_alg_template driver_algs[] = {
2268 /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */
2269 { .type = CRYPTO_ALG_TYPE_AEAD,
2272 .cra_name = "authenc(hmac(sha1),cbc(aes))",
2273 .cra_driver_name = "authenc-hmac-sha1-"
2275 .cra_blocksize = AES_BLOCK_SIZE,
2276 .cra_flags = CRYPTO_ALG_ASYNC,
2278 .ivsize = AES_BLOCK_SIZE,
2279 .maxauthsize = SHA1_DIGEST_SIZE,
2281 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2282 DESC_HDR_SEL0_AESU |
2283 DESC_HDR_MODE0_AESU_CBC |
2284 DESC_HDR_SEL1_MDEUA |
2285 DESC_HDR_MODE1_MDEU_INIT |
2286 DESC_HDR_MODE1_MDEU_PAD |
2287 DESC_HDR_MODE1_MDEU_SHA1_HMAC,
2289 { .type = CRYPTO_ALG_TYPE_AEAD,
2290 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2293 .cra_name = "authenc(hmac(sha1),cbc(aes))",
2294 .cra_driver_name = "authenc-hmac-sha1-"
2295 "cbc-aes-talitos-hsna",
2296 .cra_blocksize = AES_BLOCK_SIZE,
2297 .cra_flags = CRYPTO_ALG_ASYNC,
2299 .ivsize = AES_BLOCK_SIZE,
2300 .maxauthsize = SHA1_DIGEST_SIZE,
2302 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2303 DESC_HDR_SEL0_AESU |
2304 DESC_HDR_MODE0_AESU_CBC |
2305 DESC_HDR_SEL1_MDEUA |
2306 DESC_HDR_MODE1_MDEU_INIT |
2307 DESC_HDR_MODE1_MDEU_PAD |
2308 DESC_HDR_MODE1_MDEU_SHA1_HMAC,
2310 { .type = CRYPTO_ALG_TYPE_AEAD,
2313 .cra_name = "authenc(hmac(sha1),"
2315 .cra_driver_name = "authenc-hmac-sha1-"
2317 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2318 .cra_flags = CRYPTO_ALG_ASYNC,
2320 .ivsize = DES3_EDE_BLOCK_SIZE,
2321 .maxauthsize = SHA1_DIGEST_SIZE,
2322 .setkey = aead_des3_setkey,
2324 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2326 DESC_HDR_MODE0_DEU_CBC |
2327 DESC_HDR_MODE0_DEU_3DES |
2328 DESC_HDR_SEL1_MDEUA |
2329 DESC_HDR_MODE1_MDEU_INIT |
2330 DESC_HDR_MODE1_MDEU_PAD |
2331 DESC_HDR_MODE1_MDEU_SHA1_HMAC,
2333 { .type = CRYPTO_ALG_TYPE_AEAD,
2334 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2337 .cra_name = "authenc(hmac(sha1),"
2339 .cra_driver_name = "authenc-hmac-sha1-"
2340 "cbc-3des-talitos-hsna",
2341 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2342 .cra_flags = CRYPTO_ALG_ASYNC,
2344 .ivsize = DES3_EDE_BLOCK_SIZE,
2345 .maxauthsize = SHA1_DIGEST_SIZE,
2346 .setkey = aead_des3_setkey,
2348 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2350 DESC_HDR_MODE0_DEU_CBC |
2351 DESC_HDR_MODE0_DEU_3DES |
2352 DESC_HDR_SEL1_MDEUA |
2353 DESC_HDR_MODE1_MDEU_INIT |
2354 DESC_HDR_MODE1_MDEU_PAD |
2355 DESC_HDR_MODE1_MDEU_SHA1_HMAC,
2357 { .type = CRYPTO_ALG_TYPE_AEAD,
2360 .cra_name = "authenc(hmac(sha224),cbc(aes))",
2361 .cra_driver_name = "authenc-hmac-sha224-"
2363 .cra_blocksize = AES_BLOCK_SIZE,
2364 .cra_flags = CRYPTO_ALG_ASYNC,
2366 .ivsize = AES_BLOCK_SIZE,
2367 .maxauthsize = SHA224_DIGEST_SIZE,
2369 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2370 DESC_HDR_SEL0_AESU |
2371 DESC_HDR_MODE0_AESU_CBC |
2372 DESC_HDR_SEL1_MDEUA |
2373 DESC_HDR_MODE1_MDEU_INIT |
2374 DESC_HDR_MODE1_MDEU_PAD |
2375 DESC_HDR_MODE1_MDEU_SHA224_HMAC,
2377 { .type = CRYPTO_ALG_TYPE_AEAD,
2378 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2381 .cra_name = "authenc(hmac(sha224),cbc(aes))",
2382 .cra_driver_name = "authenc-hmac-sha224-"
2383 "cbc-aes-talitos-hsna",
2384 .cra_blocksize = AES_BLOCK_SIZE,
2385 .cra_flags = CRYPTO_ALG_ASYNC,
2387 .ivsize = AES_BLOCK_SIZE,
2388 .maxauthsize = SHA224_DIGEST_SIZE,
2390 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2391 DESC_HDR_SEL0_AESU |
2392 DESC_HDR_MODE0_AESU_CBC |
2393 DESC_HDR_SEL1_MDEUA |
2394 DESC_HDR_MODE1_MDEU_INIT |
2395 DESC_HDR_MODE1_MDEU_PAD |
2396 DESC_HDR_MODE1_MDEU_SHA224_HMAC,
2398 { .type = CRYPTO_ALG_TYPE_AEAD,
2401 .cra_name = "authenc(hmac(sha224),"
2403 .cra_driver_name = "authenc-hmac-sha224-"
2405 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2406 .cra_flags = CRYPTO_ALG_ASYNC,
2408 .ivsize = DES3_EDE_BLOCK_SIZE,
2409 .maxauthsize = SHA224_DIGEST_SIZE,
2410 .setkey = aead_des3_setkey,
2412 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2414 DESC_HDR_MODE0_DEU_CBC |
2415 DESC_HDR_MODE0_DEU_3DES |
2416 DESC_HDR_SEL1_MDEUA |
2417 DESC_HDR_MODE1_MDEU_INIT |
2418 DESC_HDR_MODE1_MDEU_PAD |
2419 DESC_HDR_MODE1_MDEU_SHA224_HMAC,
2421 { .type = CRYPTO_ALG_TYPE_AEAD,
2422 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2425 .cra_name = "authenc(hmac(sha224),"
2427 .cra_driver_name = "authenc-hmac-sha224-"
2428 "cbc-3des-talitos-hsna",
2429 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2430 .cra_flags = CRYPTO_ALG_ASYNC,
2432 .ivsize = DES3_EDE_BLOCK_SIZE,
2433 .maxauthsize = SHA224_DIGEST_SIZE,
2434 .setkey = aead_des3_setkey,
2436 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2438 DESC_HDR_MODE0_DEU_CBC |
2439 DESC_HDR_MODE0_DEU_3DES |
2440 DESC_HDR_SEL1_MDEUA |
2441 DESC_HDR_MODE1_MDEU_INIT |
2442 DESC_HDR_MODE1_MDEU_PAD |
2443 DESC_HDR_MODE1_MDEU_SHA224_HMAC,
2445 { .type = CRYPTO_ALG_TYPE_AEAD,
2448 .cra_name = "authenc(hmac(sha256),cbc(aes))",
2449 .cra_driver_name = "authenc-hmac-sha256-"
2451 .cra_blocksize = AES_BLOCK_SIZE,
2452 .cra_flags = CRYPTO_ALG_ASYNC,
2454 .ivsize = AES_BLOCK_SIZE,
2455 .maxauthsize = SHA256_DIGEST_SIZE,
2457 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2458 DESC_HDR_SEL0_AESU |
2459 DESC_HDR_MODE0_AESU_CBC |
2460 DESC_HDR_SEL1_MDEUA |
2461 DESC_HDR_MODE1_MDEU_INIT |
2462 DESC_HDR_MODE1_MDEU_PAD |
2463 DESC_HDR_MODE1_MDEU_SHA256_HMAC,
2465 { .type = CRYPTO_ALG_TYPE_AEAD,
2466 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2469 .cra_name = "authenc(hmac(sha256),cbc(aes))",
2470 .cra_driver_name = "authenc-hmac-sha256-"
2471 "cbc-aes-talitos-hsna",
2472 .cra_blocksize = AES_BLOCK_SIZE,
2473 .cra_flags = CRYPTO_ALG_ASYNC,
2475 .ivsize = AES_BLOCK_SIZE,
2476 .maxauthsize = SHA256_DIGEST_SIZE,
2478 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2479 DESC_HDR_SEL0_AESU |
2480 DESC_HDR_MODE0_AESU_CBC |
2481 DESC_HDR_SEL1_MDEUA |
2482 DESC_HDR_MODE1_MDEU_INIT |
2483 DESC_HDR_MODE1_MDEU_PAD |
2484 DESC_HDR_MODE1_MDEU_SHA256_HMAC,
2486 { .type = CRYPTO_ALG_TYPE_AEAD,
2489 .cra_name = "authenc(hmac(sha256),"
2491 .cra_driver_name = "authenc-hmac-sha256-"
2493 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2494 .cra_flags = CRYPTO_ALG_ASYNC,
2496 .ivsize = DES3_EDE_BLOCK_SIZE,
2497 .maxauthsize = SHA256_DIGEST_SIZE,
2498 .setkey = aead_des3_setkey,
2500 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2502 DESC_HDR_MODE0_DEU_CBC |
2503 DESC_HDR_MODE0_DEU_3DES |
2504 DESC_HDR_SEL1_MDEUA |
2505 DESC_HDR_MODE1_MDEU_INIT |
2506 DESC_HDR_MODE1_MDEU_PAD |
2507 DESC_HDR_MODE1_MDEU_SHA256_HMAC,
2509 { .type = CRYPTO_ALG_TYPE_AEAD,
2510 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2513 .cra_name = "authenc(hmac(sha256),"
2515 .cra_driver_name = "authenc-hmac-sha256-"
2516 "cbc-3des-talitos-hsna",
2517 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2518 .cra_flags = CRYPTO_ALG_ASYNC,
2520 .ivsize = DES3_EDE_BLOCK_SIZE,
2521 .maxauthsize = SHA256_DIGEST_SIZE,
2522 .setkey = aead_des3_setkey,
2524 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2526 DESC_HDR_MODE0_DEU_CBC |
2527 DESC_HDR_MODE0_DEU_3DES |
2528 DESC_HDR_SEL1_MDEUA |
2529 DESC_HDR_MODE1_MDEU_INIT |
2530 DESC_HDR_MODE1_MDEU_PAD |
2531 DESC_HDR_MODE1_MDEU_SHA256_HMAC,
2533 { .type = CRYPTO_ALG_TYPE_AEAD,
2536 .cra_name = "authenc(hmac(sha384),cbc(aes))",
2537 .cra_driver_name = "authenc-hmac-sha384-"
2539 .cra_blocksize = AES_BLOCK_SIZE,
2540 .cra_flags = CRYPTO_ALG_ASYNC,
2542 .ivsize = AES_BLOCK_SIZE,
2543 .maxauthsize = SHA384_DIGEST_SIZE,
2545 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2546 DESC_HDR_SEL0_AESU |
2547 DESC_HDR_MODE0_AESU_CBC |
2548 DESC_HDR_SEL1_MDEUB |
2549 DESC_HDR_MODE1_MDEU_INIT |
2550 DESC_HDR_MODE1_MDEU_PAD |
2551 DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
2553 { .type = CRYPTO_ALG_TYPE_AEAD,
2556 .cra_name = "authenc(hmac(sha384),"
2558 .cra_driver_name = "authenc-hmac-sha384-"
2560 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2561 .cra_flags = CRYPTO_ALG_ASYNC,
2563 .ivsize = DES3_EDE_BLOCK_SIZE,
2564 .maxauthsize = SHA384_DIGEST_SIZE,
2565 .setkey = aead_des3_setkey,
2567 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2569 DESC_HDR_MODE0_DEU_CBC |
2570 DESC_HDR_MODE0_DEU_3DES |
2571 DESC_HDR_SEL1_MDEUB |
2572 DESC_HDR_MODE1_MDEU_INIT |
2573 DESC_HDR_MODE1_MDEU_PAD |
2574 DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
2576 { .type = CRYPTO_ALG_TYPE_AEAD,
2579 .cra_name = "authenc(hmac(sha512),cbc(aes))",
2580 .cra_driver_name = "authenc-hmac-sha512-"
2582 .cra_blocksize = AES_BLOCK_SIZE,
2583 .cra_flags = CRYPTO_ALG_ASYNC,
2585 .ivsize = AES_BLOCK_SIZE,
2586 .maxauthsize = SHA512_DIGEST_SIZE,
2588 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2589 DESC_HDR_SEL0_AESU |
2590 DESC_HDR_MODE0_AESU_CBC |
2591 DESC_HDR_SEL1_MDEUB |
2592 DESC_HDR_MODE1_MDEU_INIT |
2593 DESC_HDR_MODE1_MDEU_PAD |
2594 DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
2596 { .type = CRYPTO_ALG_TYPE_AEAD,
2599 .cra_name = "authenc(hmac(sha512),"
2601 .cra_driver_name = "authenc-hmac-sha512-"
2603 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2604 .cra_flags = CRYPTO_ALG_ASYNC,
2606 .ivsize = DES3_EDE_BLOCK_SIZE,
2607 .maxauthsize = SHA512_DIGEST_SIZE,
2608 .setkey = aead_des3_setkey,
2610 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2612 DESC_HDR_MODE0_DEU_CBC |
2613 DESC_HDR_MODE0_DEU_3DES |
2614 DESC_HDR_SEL1_MDEUB |
2615 DESC_HDR_MODE1_MDEU_INIT |
2616 DESC_HDR_MODE1_MDEU_PAD |
2617 DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
2619 { .type = CRYPTO_ALG_TYPE_AEAD,
2622 .cra_name = "authenc(hmac(md5),cbc(aes))",
2623 .cra_driver_name = "authenc-hmac-md5-"
2625 .cra_blocksize = AES_BLOCK_SIZE,
2626 .cra_flags = CRYPTO_ALG_ASYNC,
2628 .ivsize = AES_BLOCK_SIZE,
2629 .maxauthsize = MD5_DIGEST_SIZE,
2631 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2632 DESC_HDR_SEL0_AESU |
2633 DESC_HDR_MODE0_AESU_CBC |
2634 DESC_HDR_SEL1_MDEUA |
2635 DESC_HDR_MODE1_MDEU_INIT |
2636 DESC_HDR_MODE1_MDEU_PAD |
2637 DESC_HDR_MODE1_MDEU_MD5_HMAC,
2639 { .type = CRYPTO_ALG_TYPE_AEAD,
2640 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2643 .cra_name = "authenc(hmac(md5),cbc(aes))",
2644 .cra_driver_name = "authenc-hmac-md5-"
2645 "cbc-aes-talitos-hsna",
2646 .cra_blocksize = AES_BLOCK_SIZE,
2647 .cra_flags = CRYPTO_ALG_ASYNC,
2649 .ivsize = AES_BLOCK_SIZE,
2650 .maxauthsize = MD5_DIGEST_SIZE,
2652 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2653 DESC_HDR_SEL0_AESU |
2654 DESC_HDR_MODE0_AESU_CBC |
2655 DESC_HDR_SEL1_MDEUA |
2656 DESC_HDR_MODE1_MDEU_INIT |
2657 DESC_HDR_MODE1_MDEU_PAD |
2658 DESC_HDR_MODE1_MDEU_MD5_HMAC,
2660 { .type = CRYPTO_ALG_TYPE_AEAD,
2663 .cra_name = "authenc(hmac(md5),cbc(des3_ede))",
2664 .cra_driver_name = "authenc-hmac-md5-"
2666 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2667 .cra_flags = CRYPTO_ALG_ASYNC,
2669 .ivsize = DES3_EDE_BLOCK_SIZE,
2670 .maxauthsize = MD5_DIGEST_SIZE,
2671 .setkey = aead_des3_setkey,
2673 .desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
2675 DESC_HDR_MODE0_DEU_CBC |
2676 DESC_HDR_MODE0_DEU_3DES |
2677 DESC_HDR_SEL1_MDEUA |
2678 DESC_HDR_MODE1_MDEU_INIT |
2679 DESC_HDR_MODE1_MDEU_PAD |
2680 DESC_HDR_MODE1_MDEU_MD5_HMAC,
2682 { .type = CRYPTO_ALG_TYPE_AEAD,
2683 .priority = TALITOS_CRA_PRIORITY_AEAD_HSNA,
2686 .cra_name = "authenc(hmac(md5),cbc(des3_ede))",
2687 .cra_driver_name = "authenc-hmac-md5-"
2688 "cbc-3des-talitos-hsna",
2689 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
2690 .cra_flags = CRYPTO_ALG_ASYNC,
2692 .ivsize = DES3_EDE_BLOCK_SIZE,
2693 .maxauthsize = MD5_DIGEST_SIZE,
2694 .setkey = aead_des3_setkey,
2696 .desc_hdr_template = DESC_HDR_TYPE_HMAC_SNOOP_NO_AFEU |
2698 DESC_HDR_MODE0_DEU_CBC |
2699 DESC_HDR_MODE0_DEU_3DES |
2700 DESC_HDR_SEL1_MDEUA |
2701 DESC_HDR_MODE1_MDEU_INIT |
2702 DESC_HDR_MODE1_MDEU_PAD |
2703 DESC_HDR_MODE1_MDEU_MD5_HMAC,
2705 /* SKCIPHER algorithms. */
2706 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2708 .base.cra_name = "ecb(aes)",
2709 .base.cra_driver_name = "ecb-aes-talitos",
2710 .base.cra_blocksize = AES_BLOCK_SIZE,
2711 .base.cra_flags = CRYPTO_ALG_ASYNC,
2712 .min_keysize = AES_MIN_KEY_SIZE,
2713 .max_keysize = AES_MAX_KEY_SIZE,
2714 .setkey = skcipher_aes_setkey,
2716 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2719 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2721 .base.cra_name = "cbc(aes)",
2722 .base.cra_driver_name = "cbc-aes-talitos",
2723 .base.cra_blocksize = AES_BLOCK_SIZE,
2724 .base.cra_flags = CRYPTO_ALG_ASYNC,
2725 .min_keysize = AES_MIN_KEY_SIZE,
2726 .max_keysize = AES_MAX_KEY_SIZE,
2727 .ivsize = AES_BLOCK_SIZE,
2728 .setkey = skcipher_aes_setkey,
2730 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2731 DESC_HDR_SEL0_AESU |
2732 DESC_HDR_MODE0_AESU_CBC,
2734 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2736 .base.cra_name = "ctr(aes)",
2737 .base.cra_driver_name = "ctr-aes-talitos",
2738 .base.cra_blocksize = 1,
2739 .base.cra_flags = CRYPTO_ALG_ASYNC,
2740 .min_keysize = AES_MIN_KEY_SIZE,
2741 .max_keysize = AES_MAX_KEY_SIZE,
2742 .ivsize = AES_BLOCK_SIZE,
2743 .setkey = skcipher_aes_setkey,
2745 .desc_hdr_template = DESC_HDR_TYPE_AESU_CTR_NONSNOOP |
2746 DESC_HDR_SEL0_AESU |
2747 DESC_HDR_MODE0_AESU_CTR,
2749 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2751 .base.cra_name = "ecb(des)",
2752 .base.cra_driver_name = "ecb-des-talitos",
2753 .base.cra_blocksize = DES_BLOCK_SIZE,
2754 .base.cra_flags = CRYPTO_ALG_ASYNC,
2755 .min_keysize = DES_KEY_SIZE,
2756 .max_keysize = DES_KEY_SIZE,
2757 .setkey = skcipher_des_setkey,
2759 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2762 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2764 .base.cra_name = "cbc(des)",
2765 .base.cra_driver_name = "cbc-des-talitos",
2766 .base.cra_blocksize = DES_BLOCK_SIZE,
2767 .base.cra_flags = CRYPTO_ALG_ASYNC,
2768 .min_keysize = DES_KEY_SIZE,
2769 .max_keysize = DES_KEY_SIZE,
2770 .ivsize = DES_BLOCK_SIZE,
2771 .setkey = skcipher_des_setkey,
2773 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2775 DESC_HDR_MODE0_DEU_CBC,
2777 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2779 .base.cra_name = "ecb(des3_ede)",
2780 .base.cra_driver_name = "ecb-3des-talitos",
2781 .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
2782 .base.cra_flags = CRYPTO_ALG_ASYNC,
2783 .min_keysize = DES3_EDE_KEY_SIZE,
2784 .max_keysize = DES3_EDE_KEY_SIZE,
2785 .setkey = skcipher_des3_setkey,
2787 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2789 DESC_HDR_MODE0_DEU_3DES,
2791 { .type = CRYPTO_ALG_TYPE_SKCIPHER,
2793 .base.cra_name = "cbc(des3_ede)",
2794 .base.cra_driver_name = "cbc-3des-talitos",
2795 .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
2796 .base.cra_flags = CRYPTO_ALG_ASYNC,
2797 .min_keysize = DES3_EDE_KEY_SIZE,
2798 .max_keysize = DES3_EDE_KEY_SIZE,
2799 .ivsize = DES3_EDE_BLOCK_SIZE,
2800 .setkey = skcipher_des3_setkey,
2802 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2804 DESC_HDR_MODE0_DEU_CBC |
2805 DESC_HDR_MODE0_DEU_3DES,
2807 /* AHASH algorithms. */
2808 { .type = CRYPTO_ALG_TYPE_AHASH,
2810 .halg.digestsize = MD5_DIGEST_SIZE,
2811 .halg.statesize = sizeof(struct talitos_export_state),
2814 .cra_driver_name = "md5-talitos",
2815 .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
2816 .cra_flags = CRYPTO_ALG_ASYNC,
2819 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2820 DESC_HDR_SEL0_MDEUA |
2821 DESC_HDR_MODE0_MDEU_MD5,
2823 { .type = CRYPTO_ALG_TYPE_AHASH,
2825 .halg.digestsize = SHA1_DIGEST_SIZE,
2826 .halg.statesize = sizeof(struct talitos_export_state),
2829 .cra_driver_name = "sha1-talitos",
2830 .cra_blocksize = SHA1_BLOCK_SIZE,
2831 .cra_flags = CRYPTO_ALG_ASYNC,
2834 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2835 DESC_HDR_SEL0_MDEUA |
2836 DESC_HDR_MODE0_MDEU_SHA1,
2838 { .type = CRYPTO_ALG_TYPE_AHASH,
2840 .halg.digestsize = SHA224_DIGEST_SIZE,
2841 .halg.statesize = sizeof(struct talitos_export_state),
2843 .cra_name = "sha224",
2844 .cra_driver_name = "sha224-talitos",
2845 .cra_blocksize = SHA224_BLOCK_SIZE,
2846 .cra_flags = CRYPTO_ALG_ASYNC,
2849 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2850 DESC_HDR_SEL0_MDEUA |
2851 DESC_HDR_MODE0_MDEU_SHA224,
2853 { .type = CRYPTO_ALG_TYPE_AHASH,
2855 .halg.digestsize = SHA256_DIGEST_SIZE,
2856 .halg.statesize = sizeof(struct talitos_export_state),
2858 .cra_name = "sha256",
2859 .cra_driver_name = "sha256-talitos",
2860 .cra_blocksize = SHA256_BLOCK_SIZE,
2861 .cra_flags = CRYPTO_ALG_ASYNC,
2864 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2865 DESC_HDR_SEL0_MDEUA |
2866 DESC_HDR_MODE0_MDEU_SHA256,
2868 { .type = CRYPTO_ALG_TYPE_AHASH,
2870 .halg.digestsize = SHA384_DIGEST_SIZE,
2871 .halg.statesize = sizeof(struct talitos_export_state),
2873 .cra_name = "sha384",
2874 .cra_driver_name = "sha384-talitos",
2875 .cra_blocksize = SHA384_BLOCK_SIZE,
2876 .cra_flags = CRYPTO_ALG_ASYNC,
2879 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2880 DESC_HDR_SEL0_MDEUB |
2881 DESC_HDR_MODE0_MDEUB_SHA384,
2883 { .type = CRYPTO_ALG_TYPE_AHASH,
2885 .halg.digestsize = SHA512_DIGEST_SIZE,
2886 .halg.statesize = sizeof(struct talitos_export_state),
2888 .cra_name = "sha512",
2889 .cra_driver_name = "sha512-talitos",
2890 .cra_blocksize = SHA512_BLOCK_SIZE,
2891 .cra_flags = CRYPTO_ALG_ASYNC,
2894 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2895 DESC_HDR_SEL0_MDEUB |
2896 DESC_HDR_MODE0_MDEUB_SHA512,
2898 { .type = CRYPTO_ALG_TYPE_AHASH,
2900 .halg.digestsize = MD5_DIGEST_SIZE,
2901 .halg.statesize = sizeof(struct talitos_export_state),
2903 .cra_name = "hmac(md5)",
2904 .cra_driver_name = "hmac-md5-talitos",
2905 .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
2906 .cra_flags = CRYPTO_ALG_ASYNC,
2909 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2910 DESC_HDR_SEL0_MDEUA |
2911 DESC_HDR_MODE0_MDEU_MD5,
2913 { .type = CRYPTO_ALG_TYPE_AHASH,
2915 .halg.digestsize = SHA1_DIGEST_SIZE,
2916 .halg.statesize = sizeof(struct talitos_export_state),
2918 .cra_name = "hmac(sha1)",
2919 .cra_driver_name = "hmac-sha1-talitos",
2920 .cra_blocksize = SHA1_BLOCK_SIZE,
2921 .cra_flags = CRYPTO_ALG_ASYNC,
2924 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2925 DESC_HDR_SEL0_MDEUA |
2926 DESC_HDR_MODE0_MDEU_SHA1,
2928 { .type = CRYPTO_ALG_TYPE_AHASH,
2930 .halg.digestsize = SHA224_DIGEST_SIZE,
2931 .halg.statesize = sizeof(struct talitos_export_state),
2933 .cra_name = "hmac(sha224)",
2934 .cra_driver_name = "hmac-sha224-talitos",
2935 .cra_blocksize = SHA224_BLOCK_SIZE,
2936 .cra_flags = CRYPTO_ALG_ASYNC,
2939 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2940 DESC_HDR_SEL0_MDEUA |
2941 DESC_HDR_MODE0_MDEU_SHA224,
2943 { .type = CRYPTO_ALG_TYPE_AHASH,
2945 .halg.digestsize = SHA256_DIGEST_SIZE,
2946 .halg.statesize = sizeof(struct talitos_export_state),
2948 .cra_name = "hmac(sha256)",
2949 .cra_driver_name = "hmac-sha256-talitos",
2950 .cra_blocksize = SHA256_BLOCK_SIZE,
2951 .cra_flags = CRYPTO_ALG_ASYNC,
2954 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2955 DESC_HDR_SEL0_MDEUA |
2956 DESC_HDR_MODE0_MDEU_SHA256,
2958 { .type = CRYPTO_ALG_TYPE_AHASH,
2960 .halg.digestsize = SHA384_DIGEST_SIZE,
2961 .halg.statesize = sizeof(struct talitos_export_state),
2963 .cra_name = "hmac(sha384)",
2964 .cra_driver_name = "hmac-sha384-talitos",
2965 .cra_blocksize = SHA384_BLOCK_SIZE,
2966 .cra_flags = CRYPTO_ALG_ASYNC,
2969 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2970 DESC_HDR_SEL0_MDEUB |
2971 DESC_HDR_MODE0_MDEUB_SHA384,
2973 { .type = CRYPTO_ALG_TYPE_AHASH,
2975 .halg.digestsize = SHA512_DIGEST_SIZE,
2976 .halg.statesize = sizeof(struct talitos_export_state),
2978 .cra_name = "hmac(sha512)",
2979 .cra_driver_name = "hmac-sha512-talitos",
2980 .cra_blocksize = SHA512_BLOCK_SIZE,
2981 .cra_flags = CRYPTO_ALG_ASYNC,
2984 .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
2985 DESC_HDR_SEL0_MDEUB |
2986 DESC_HDR_MODE0_MDEUB_SHA512,
2990 struct talitos_crypto_alg {
2991 struct list_head entry;
2993 struct talitos_alg_template algt;
2996 static int talitos_init_common(struct talitos_ctx *ctx,
2997 struct talitos_crypto_alg *talitos_alg)
2999 struct talitos_private *priv;
3001 /* update context with ptr to dev */
3002 ctx->dev = talitos_alg->dev;
3004 /* assign SEC channel to tfm in round-robin fashion */
3005 priv = dev_get_drvdata(ctx->dev);
3006 ctx->ch = atomic_inc_return(&priv->last_chan) &
3007 (priv->num_channels - 1);
3009 /* copy descriptor header template value */
3010 ctx->desc_hdr_template = talitos_alg->algt.desc_hdr_template;
3012 /* select done notification */
3013 ctx->desc_hdr_template |= DESC_HDR_DONE_NOTIFY;
3018 static int talitos_cra_init_aead(struct crypto_aead *tfm)
3020 struct aead_alg *alg = crypto_aead_alg(tfm);
3021 struct talitos_crypto_alg *talitos_alg;
3022 struct talitos_ctx *ctx = crypto_aead_ctx(tfm);
3024 talitos_alg = container_of(alg, struct talitos_crypto_alg,
3027 return talitos_init_common(ctx, talitos_alg);
3030 static int talitos_cra_init_skcipher(struct crypto_skcipher *tfm)
3032 struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
3033 struct talitos_crypto_alg *talitos_alg;
3034 struct talitos_ctx *ctx = crypto_skcipher_ctx(tfm);
3036 talitos_alg = container_of(alg, struct talitos_crypto_alg,
3039 return talitos_init_common(ctx, talitos_alg);
3042 static int talitos_cra_init_ahash(struct crypto_tfm *tfm)
3044 struct crypto_alg *alg = tfm->__crt_alg;
3045 struct talitos_crypto_alg *talitos_alg;
3046 struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
3048 talitos_alg = container_of(__crypto_ahash_alg(alg),
3049 struct talitos_crypto_alg,
3053 crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
3054 sizeof(struct talitos_ahash_req_ctx));
3056 return talitos_init_common(ctx, talitos_alg);
3059 static void talitos_cra_exit(struct crypto_tfm *tfm)
3061 struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
3062 struct device *dev = ctx->dev;
3065 dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
3069 * given the alg's descriptor header template, determine whether descriptor
3070 * type and primary/secondary execution units required match the hw
3071 * capabilities description provided in the device tree node.
3073 static int hw_supports(struct device *dev, __be32 desc_hdr_template)
3075 struct talitos_private *priv = dev_get_drvdata(dev);
3078 ret = (1 << DESC_TYPE(desc_hdr_template) & priv->desc_types) &&
3079 (1 << PRIMARY_EU(desc_hdr_template) & priv->exec_units);
3081 if (SECONDARY_EU(desc_hdr_template))
3082 ret = ret && (1 << SECONDARY_EU(desc_hdr_template)
3083 & priv->exec_units);
3088 static int talitos_remove(struct platform_device *ofdev)
3090 struct device *dev = &ofdev->dev;
3091 struct talitos_private *priv = dev_get_drvdata(dev);
3092 struct talitos_crypto_alg *t_alg, *n;
3095 list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
3096 switch (t_alg->algt.type) {
3097 case CRYPTO_ALG_TYPE_SKCIPHER:
3098 crypto_unregister_skcipher(&t_alg->algt.alg.skcipher);
3100 case CRYPTO_ALG_TYPE_AEAD:
3101 crypto_unregister_aead(&t_alg->algt.alg.aead);
3103 case CRYPTO_ALG_TYPE_AHASH:
3104 crypto_unregister_ahash(&t_alg->algt.alg.hash);
3107 list_del(&t_alg->entry);
3110 if (hw_supports(dev, DESC_HDR_SEL0_RNG))
3111 talitos_unregister_rng(dev);
3113 for (i = 0; i < 2; i++)
3115 free_irq(priv->irq[i], dev);
3116 irq_dispose_mapping(priv->irq[i]);
3119 tasklet_kill(&priv->done_task[0]);
3121 tasklet_kill(&priv->done_task[1]);
3126 static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
3127 struct talitos_alg_template
3130 struct talitos_private *priv = dev_get_drvdata(dev);
3131 struct talitos_crypto_alg *t_alg;
3132 struct crypto_alg *alg;
3134 t_alg = devm_kzalloc(dev, sizeof(struct talitos_crypto_alg),
3137 return ERR_PTR(-ENOMEM);
3139 t_alg->algt = *template;
3141 switch (t_alg->algt.type) {
3142 case CRYPTO_ALG_TYPE_SKCIPHER:
3143 alg = &t_alg->algt.alg.skcipher.base;
3144 alg->cra_exit = talitos_cra_exit;
3145 t_alg->algt.alg.skcipher.init = talitos_cra_init_skcipher;
3146 t_alg->algt.alg.skcipher.setkey =
3147 t_alg->algt.alg.skcipher.setkey ?: skcipher_setkey;
3148 t_alg->algt.alg.skcipher.encrypt = skcipher_encrypt;
3149 t_alg->algt.alg.skcipher.decrypt = skcipher_decrypt;
3151 case CRYPTO_ALG_TYPE_AEAD:
3152 alg = &t_alg->algt.alg.aead.base;
3153 alg->cra_exit = talitos_cra_exit;
3154 t_alg->algt.alg.aead.init = talitos_cra_init_aead;
3155 t_alg->algt.alg.aead.setkey = t_alg->algt.alg.aead.setkey ?:
3157 t_alg->algt.alg.aead.encrypt = aead_encrypt;
3158 t_alg->algt.alg.aead.decrypt = aead_decrypt;
3159 if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) &&
3160 !strncmp(alg->cra_name, "authenc(hmac(sha224)", 20)) {
3161 devm_kfree(dev, t_alg);
3162 return ERR_PTR(-ENOTSUPP);
3165 case CRYPTO_ALG_TYPE_AHASH:
3166 alg = &t_alg->algt.alg.hash.halg.base;
3167 alg->cra_init = talitos_cra_init_ahash;
3168 alg->cra_exit = talitos_cra_exit;
3169 t_alg->algt.alg.hash.init = ahash_init;
3170 t_alg->algt.alg.hash.update = ahash_update;
3171 t_alg->algt.alg.hash.final = ahash_final;
3172 t_alg->algt.alg.hash.finup = ahash_finup;
3173 t_alg->algt.alg.hash.digest = ahash_digest;
3174 if (!strncmp(alg->cra_name, "hmac", 4))
3175 t_alg->algt.alg.hash.setkey = ahash_setkey;
3176 t_alg->algt.alg.hash.import = ahash_import;
3177 t_alg->algt.alg.hash.export = ahash_export;
3179 if (!(priv->features & TALITOS_FTR_HMAC_OK) &&
3180 !strncmp(alg->cra_name, "hmac", 4)) {
3181 devm_kfree(dev, t_alg);
3182 return ERR_PTR(-ENOTSUPP);
3184 if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) &&
3185 (!strcmp(alg->cra_name, "sha224") ||
3186 !strcmp(alg->cra_name, "hmac(sha224)"))) {
3187 t_alg->algt.alg.hash.init = ahash_init_sha224_swinit;
3188 t_alg->algt.desc_hdr_template =
3189 DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
3190 DESC_HDR_SEL0_MDEUA |
3191 DESC_HDR_MODE0_MDEU_SHA256;
3195 dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type);
3196 devm_kfree(dev, t_alg);
3197 return ERR_PTR(-EINVAL);
3200 alg->cra_module = THIS_MODULE;
3201 if (t_alg->algt.priority)
3202 alg->cra_priority = t_alg->algt.priority;
3204 alg->cra_priority = TALITOS_CRA_PRIORITY;
3205 if (has_ftr_sec1(priv))
3206 alg->cra_alignmask = 3;
3208 alg->cra_alignmask = 0;
3209 alg->cra_ctxsize = sizeof(struct talitos_ctx);
3210 alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY;
3217 static int talitos_probe_irq(struct platform_device *ofdev)
3219 struct device *dev = &ofdev->dev;
3220 struct device_node *np = ofdev->dev.of_node;
3221 struct talitos_private *priv = dev_get_drvdata(dev);
3223 bool is_sec1 = has_ftr_sec1(priv);
3225 priv->irq[0] = irq_of_parse_and_map(np, 0);
3226 if (!priv->irq[0]) {
3227 dev_err(dev, "failed to map irq\n");
3231 err = request_irq(priv->irq[0], talitos1_interrupt_4ch, 0,
3232 dev_driver_string(dev), dev);
3236 priv->irq[1] = irq_of_parse_and_map(np, 1);
3238 /* get the primary irq line */
3239 if (!priv->irq[1]) {
3240 err = request_irq(priv->irq[0], talitos2_interrupt_4ch, 0,
3241 dev_driver_string(dev), dev);
3245 err = request_irq(priv->irq[0], talitos2_interrupt_ch0_2, 0,
3246 dev_driver_string(dev), dev);
3250 /* get the secondary irq line */
3251 err = request_irq(priv->irq[1], talitos2_interrupt_ch1_3, 0,
3252 dev_driver_string(dev), dev);
3254 dev_err(dev, "failed to request secondary irq\n");
3255 irq_dispose_mapping(priv->irq[1]);
3263 dev_err(dev, "failed to request primary irq\n");
3264 irq_dispose_mapping(priv->irq[0]);
3271 static int talitos_probe(struct platform_device *ofdev)
3273 struct device *dev = &ofdev->dev;
3274 struct device_node *np = ofdev->dev.of_node;
3275 struct talitos_private *priv;
3278 struct resource *res;
3280 priv = devm_kzalloc(dev, sizeof(struct talitos_private), GFP_KERNEL);
3284 INIT_LIST_HEAD(&priv->alg_list);
3286 dev_set_drvdata(dev, priv);
3288 priv->ofdev = ofdev;
3290 spin_lock_init(&priv->reg_lock);
3292 res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
3295 priv->reg = devm_ioremap(dev, res->start, resource_size(res));
3297 dev_err(dev, "failed to of_iomap\n");
3302 /* get SEC version capabilities from device tree */
3303 of_property_read_u32(np, "fsl,num-channels", &priv->num_channels);
3304 of_property_read_u32(np, "fsl,channel-fifo-len", &priv->chfifo_len);
3305 of_property_read_u32(np, "fsl,exec-units-mask", &priv->exec_units);
3306 of_property_read_u32(np, "fsl,descriptor-types-mask",
3309 if (!is_power_of_2(priv->num_channels) || !priv->chfifo_len ||
3310 !priv->exec_units || !priv->desc_types) {
3311 dev_err(dev, "invalid property data in device tree node\n");
3316 if (of_device_is_compatible(np, "fsl,sec3.0"))
3317 priv->features |= TALITOS_FTR_SRC_LINK_TBL_LEN_INCLUDES_EXTENT;
3319 if (of_device_is_compatible(np, "fsl,sec2.1"))
3320 priv->features |= TALITOS_FTR_HW_AUTH_CHECK |
3321 TALITOS_FTR_SHA224_HWINIT |
3322 TALITOS_FTR_HMAC_OK;
3324 if (of_device_is_compatible(np, "fsl,sec1.0"))
3325 priv->features |= TALITOS_FTR_SEC1;
3327 if (of_device_is_compatible(np, "fsl,sec1.2")) {
3328 priv->reg_deu = priv->reg + TALITOS12_DEU;
3329 priv->reg_aesu = priv->reg + TALITOS12_AESU;
3330 priv->reg_mdeu = priv->reg + TALITOS12_MDEU;
3331 stride = TALITOS1_CH_STRIDE;
3332 } else if (of_device_is_compatible(np, "fsl,sec1.0")) {
3333 priv->reg_deu = priv->reg + TALITOS10_DEU;
3334 priv->reg_aesu = priv->reg + TALITOS10_AESU;
3335 priv->reg_mdeu = priv->reg + TALITOS10_MDEU;
3336 priv->reg_afeu = priv->reg + TALITOS10_AFEU;
3337 priv->reg_rngu = priv->reg + TALITOS10_RNGU;
3338 priv->reg_pkeu = priv->reg + TALITOS10_PKEU;
3339 stride = TALITOS1_CH_STRIDE;
3341 priv->reg_deu = priv->reg + TALITOS2_DEU;
3342 priv->reg_aesu = priv->reg + TALITOS2_AESU;
3343 priv->reg_mdeu = priv->reg + TALITOS2_MDEU;
3344 priv->reg_afeu = priv->reg + TALITOS2_AFEU;
3345 priv->reg_rngu = priv->reg + TALITOS2_RNGU;
3346 priv->reg_pkeu = priv->reg + TALITOS2_PKEU;
3347 priv->reg_keu = priv->reg + TALITOS2_KEU;
3348 priv->reg_crcu = priv->reg + TALITOS2_CRCU;
3349 stride = TALITOS2_CH_STRIDE;
3352 err = talitos_probe_irq(ofdev);
3356 if (has_ftr_sec1(priv)) {
3357 if (priv->num_channels == 1)
3358 tasklet_init(&priv->done_task[0], talitos1_done_ch0,
3359 (unsigned long)dev);
3361 tasklet_init(&priv->done_task[0], talitos1_done_4ch,
3362 (unsigned long)dev);
3365 tasklet_init(&priv->done_task[0], talitos2_done_ch0_2,
3366 (unsigned long)dev);
3367 tasklet_init(&priv->done_task[1], talitos2_done_ch1_3,
3368 (unsigned long)dev);
3369 } else if (priv->num_channels == 1) {
3370 tasklet_init(&priv->done_task[0], talitos2_done_ch0,
3371 (unsigned long)dev);
3373 tasklet_init(&priv->done_task[0], talitos2_done_4ch,
3374 (unsigned long)dev);
3378 priv->chan = devm_kcalloc(dev,
3380 sizeof(struct talitos_channel),
3383 dev_err(dev, "failed to allocate channel management space\n");
3388 priv->fifo_len = roundup_pow_of_two(priv->chfifo_len);
3390 for (i = 0; i < priv->num_channels; i++) {
3391 priv->chan[i].reg = priv->reg + stride * (i + 1);
3392 if (!priv->irq[1] || !(i & 1))
3393 priv->chan[i].reg += TALITOS_CH_BASE_OFFSET;
3395 spin_lock_init(&priv->chan[i].head_lock);
3396 spin_lock_init(&priv->chan[i].tail_lock);
3398 priv->chan[i].fifo = devm_kcalloc(dev,
3400 sizeof(struct talitos_request),
3402 if (!priv->chan[i].fifo) {
3403 dev_err(dev, "failed to allocate request fifo %d\n", i);
3408 atomic_set(&priv->chan[i].submit_count,
3409 -(priv->chfifo_len - 1));
3412 dma_set_mask(dev, DMA_BIT_MASK(36));
3414 /* reset and initialize the h/w */
3415 err = init_device(dev);
3417 dev_err(dev, "failed to initialize device\n");
3421 /* register the RNG, if available */
3422 if (hw_supports(dev, DESC_HDR_SEL0_RNG)) {
3423 err = talitos_register_rng(dev);
3425 dev_err(dev, "failed to register hwrng: %d\n", err);
3428 dev_info(dev, "hwrng\n");
3431 /* register crypto algorithms the device supports */
3432 for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
3433 if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
3434 struct talitos_crypto_alg *t_alg;
3435 struct crypto_alg *alg = NULL;
3437 t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
3438 if (IS_ERR(t_alg)) {
3439 err = PTR_ERR(t_alg);
3440 if (err == -ENOTSUPP)
3445 switch (t_alg->algt.type) {
3446 case CRYPTO_ALG_TYPE_SKCIPHER:
3447 err = crypto_register_skcipher(
3448 &t_alg->algt.alg.skcipher);
3449 alg = &t_alg->algt.alg.skcipher.base;
3452 case CRYPTO_ALG_TYPE_AEAD:
3453 err = crypto_register_aead(
3454 &t_alg->algt.alg.aead);
3455 alg = &t_alg->algt.alg.aead.base;
3458 case CRYPTO_ALG_TYPE_AHASH:
3459 err = crypto_register_ahash(
3460 &t_alg->algt.alg.hash);
3461 alg = &t_alg->algt.alg.hash.halg.base;
3465 dev_err(dev, "%s alg registration failed\n",
3466 alg->cra_driver_name);
3467 devm_kfree(dev, t_alg);
3469 list_add_tail(&t_alg->entry, &priv->alg_list);
3472 if (!list_empty(&priv->alg_list))
3473 dev_info(dev, "%s algorithms registered in /proc/crypto\n",
3474 (char *)of_get_property(np, "compatible", NULL));
3479 talitos_remove(ofdev);
3484 static const struct of_device_id talitos_match[] = {
3485 #ifdef CONFIG_CRYPTO_DEV_TALITOS1
3487 .compatible = "fsl,sec1.0",
3490 #ifdef CONFIG_CRYPTO_DEV_TALITOS2
3492 .compatible = "fsl,sec2.0",
3497 MODULE_DEVICE_TABLE(of, talitos_match);
3499 static struct platform_driver talitos_driver = {
3502 .of_match_table = talitos_match,
3504 .probe = talitos_probe,
3505 .remove = talitos_remove,
3508 module_platform_driver(talitos_driver);
3510 MODULE_LICENSE("GPL");
3511 MODULE_AUTHOR("Kim Phillips <kim.phillips@freescale.com>");
3512 MODULE_DESCRIPTION("Freescale integrated security engine (SEC) driver");