diff options
| -rw-r--r-- | drivers/crypto/omap-aes.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 4ed2a8c40394..81f0e848b8d1 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -150,25 +150,13 @@ struct omap_aes_dev { struct ablkcipher_request *req; size_t total; struct scatterlist *in_sg; - struct scatterlist in_sgl; - size_t in_offset; struct scatterlist *out_sg; - struct scatterlist out_sgl; - size_t out_offset; - - size_t buflen; - void *buf_in; - size_t dma_size; int dma_in; struct dma_chan *dma_lch_in; - dma_addr_t dma_addr_in; - void *buf_out; int dma_out; struct dma_chan *dma_lch_out; int in_sg_len; int out_sg_len; - dma_addr_t dma_addr_out; - const struct omap_aes_pdata *pdata; }; @@ -347,33 +335,6 @@ static int omap_aes_dma_init(struct omap_aes_dev *dd) dd->dma_lch_out = NULL; dd->dma_lch_in = NULL; - dd->buf_in = (void *)__get_free_pages(GFP_KERNEL, OMAP_AES_CACHE_SIZE); - dd->buf_out = (void *)__get_free_pages(GFP_KERNEL, OMAP_AES_CACHE_SIZE); - dd->buflen = PAGE_SIZE << OMAP_AES_CACHE_SIZE; - dd->buflen &= ~(AES_BLOCK_SIZE - 1); - - if (!dd->buf_in || !dd->buf_out) { - dev_err(dd->dev, "unable to alloc pages.\n"); - goto err_alloc; - } - - /* MAP here */ - dd->dma_addr_in = dma_map_single(dd->dev, dd->buf_in, dd->buflen, - DMA_TO_DEVICE); - if (dma_mapping_error(dd->dev, dd->dma_addr_in)) { - dev_err(dd->dev, "dma %d bytes error\n", dd->buflen); - err = -EINVAL; - goto err_map_in; - } - - dd->dma_addr_out = dma_map_single(dd->dev, dd->buf_out, dd->buflen, - DMA_FROM_DEVICE); - if (dma_mapping_error(dd->dev, dd->dma_addr_out)) { - dev_err(dd->dev, "dma %d bytes error\n", dd->buflen); - err = -EINVAL; - goto err_map_out; - } - dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); @@ -400,14 +361,6 @@ static int omap_aes_dma_init(struct omap_aes_dev *dd) err_dma_out: dma_release_channel(dd->dma_lch_in); err_dma_in: - dma_unmap_single(dd->dev, dd->dma_addr_out, dd->buflen, - DMA_FROM_DEVICE); -err_map_out: - dma_unmap_single(dd->dev, dd->dma_addr_in, dd->buflen, DMA_TO_DEVICE); -err_map_in: - free_pages((unsigned long)dd->buf_out, OMAP_AES_CACHE_SIZE); - free_pages((unsigned long)dd->buf_in, OMAP_AES_CACHE_SIZE); -err_alloc: if (err) pr_err("error: %d\n", err); return err; @@ -417,11 +370,6 @@ static void omap_aes_dma_cleanup(struct omap_aes_dev *dd) { dma_release_channel(dd->dma_lch_out); dma_release_channel(dd->dma_lch_in); - dma_unmap_single(dd->dev, dd->dma_addr_out, dd->buflen, - DMA_FROM_DEVICE); - dma_unmap_single(dd->dev, dd->dma_addr_in, dd->buflen, DMA_TO_DEVICE); - free_pages((unsigned long)dd->buf_out, OMAP_AES_CACHE_SIZE); - free_pages((unsigned long)dd->buf_in, OMAP_AES_CACHE_SIZE); } static void sg_copy_buf(void *buf, struct scatterlist *sg, @@ -438,42 +386,6 @@ static void sg_copy_buf(void *buf, struct scatterlist *sg, scatterwalk_done(&walk, out, 0); } -static int sg_copy(struct scatterlist **sg, size_t *offset, void *buf, - size_t buflen, size_t total, int out) -{ - unsigned int count, off = 0; - - while (buflen && total) { - count = min((*sg)->length - *offset, total); - count = min(count, buflen); - - if (!count) - return off; - - /* - * buflen and total are AES_BLOCK_SIZE size aligned, - * so count should be also aligned - */ - - sg_copy_buf(buf + off, *sg, *offset, count, out); - - off += count; - buflen -= count; - *offset += count; - total -= count; - - if (*offset == (*sg)->length) { - *sg = sg_next(*sg); - if (*sg) - *offset = 0; - else - total = 0; - } - } - - return off; -} - static int omap_aes_crypt_dma(struct crypto_tfm *tfm, struct scatterlist *in_sg, struct scatterlist *out_sg, int in_sg_len, int out_sg_len) @@ -637,9 +549,7 @@ static int omap_aes_handle_queue(struct omap_aes_dev *dd, /* assign new request to device */ dd->req = req; dd->total = req->nbytes; - dd->in_offset = 0; dd->in_sg = req->src; - dd->out_offset = 0; dd->out_sg = req->dst; dd->in_sg_len = scatterwalk_bytes_sglen(dd->in_sg, dd->total); |