From 7d607c6a71f7a4905831fc2b1636e080533ab2db Mon Sep 17 00:00:00 2001 From: LEROY Christophe Date: Fri, 17 Apr 2015 16:32:09 +0200 Subject: [PATCH] crypto: talitos - adaptation of talitos_submit() for SEC1 SEC1 descriptor is a bit different to SEC2+ descriptor. talitos_submit() will have to copy hdr field into hdr1 field and send the descriptor starting at hdr1 up to next_desc. For SEC2, it remains unchanged and next_desc is just ignored. Signed-off-by: Christophe Leroy Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 23 +++++++++++++++++++---- drivers/crypto/talitos.h | 2 ++ 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 678b5280e7a8..e6ea6510d8f2 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -236,6 +236,7 @@ int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, struct talitos_request *request; unsigned long flags; int head; + bool is_sec1 = has_ftr_sec1(priv); spin_lock_irqsave(&priv->chan[ch].head_lock, flags); @@ -249,8 +250,17 @@ int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, request = &priv->chan[ch].fifo[head]; /* map descriptor and save caller data */ - request->dma_desc = dma_map_single(dev, desc, sizeof(*desc), - DMA_BIDIRECTIONAL); + if (is_sec1) { + desc->hdr1 = desc->hdr; + desc->next_desc = 0; + request->dma_desc = dma_map_single(dev, &desc->hdr1, + TALITOS_DESC_SIZE, + DMA_BIDIRECTIONAL); + } else { + request->dma_desc = dma_map_single(dev, desc, + TALITOS_DESC_SIZE, + DMA_BIDIRECTIONAL); + } request->callback = callback; request->context = context; @@ -282,16 +292,21 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch) struct talitos_request *request, saved_req; unsigned long flags; int tail, status; + bool is_sec1 = has_ftr_sec1(priv); spin_lock_irqsave(&priv->chan[ch].tail_lock, flags); tail = priv->chan[ch].tail; while (priv->chan[ch].fifo[tail].desc) { + __be32 hdr; + request = &priv->chan[ch].fifo[tail]; /* descriptors with their done bits set don't get the error */ rmb(); - if ((request->desc->hdr & DESC_HDR_DONE) == DESC_HDR_DONE) + hdr = is_sec1 ? request->desc->hdr1 : request->desc->hdr; + + if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE) status = 0; else if (!error) @@ -300,7 +315,7 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch) status = error; dma_unmap_single(dev, request->dma_desc, - sizeof(struct talitos_desc), + TALITOS_DESC_SIZE, DMA_BIDIRECTIONAL); /* copy entries so we can call callback outside lock */ diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h index b0bdb4ec79fc..f827c04a6d1a 100644 --- a/drivers/crypto/talitos.h +++ b/drivers/crypto/talitos.h @@ -69,6 +69,8 @@ struct talitos_desc { __be32 next_desc; /* next descriptor (SEC1) */ }; +#define TALITOS_DESC_SIZE (sizeof(struct talitos_desc) - sizeof(__be32)) + /** * talitos_request - descriptor submission request * @desc: descriptor pointer (kernel virtual) -- 2.20.1