drivers/crypto/talitos.c

1704 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1716 	if (req_ctx->last)
1717 		memcpy(areq->result, req_ctx->hw_context,
1720 	if (req_ctx->psrc)
1721 		talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
1731 	if (is_sec1 && req_ctx->nbuf)
1751 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1753 	if (!req_ctx->last && req_ctx->to_hash_later) {
1755 		req_ctx->buf_idx = (req_ctx->buf_idx + 1) & 1;
1756 		req_ctx->nbuf = req_ctx->to_hash_later;
1794 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1806 	if (!req_ctx->first || req_ctx->swinit) {
1808 					      req_ctx->hw_context_size,
1809 					      req_ctx->hw_context,
1811 		req_ctx->swinit = 0;
1814 	req_ctx->first = 0;
1821 	if (is_sec1 && req_ctx->nbuf)
1822 		length -= req_ctx->nbuf;
1826 		sg_copy_to_buffer(req_ctx->psrc, sg_count, edesc->buf, length);
1828 		sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count,
1833 	if (is_sec1 && req_ctx->nbuf) {
1834 		map_single_talitos_ptr(dev, &desc->ptr[3], req_ctx->nbuf,
1835 				       req_ctx->buf[req_ctx->buf_idx],
1838 		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
1847 	if (req_ctx->last)
1850 				       req_ctx->hw_context, DMA_FROM_DEVICE);
1853 					      req_ctx->hw_context_size,
1854 					      req_ctx->hw_context,
1862 	if (is_sec1 && req_ctx->nbuf && length) {
1880 						      req_ctx->hw_context_size,
1881 						      req_ctx->hw_context,
1884 		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
1889 		if (req_ctx->last)
1891 						      req_ctx->hw_context_size,
1892 						      req_ctx->hw_context,
1917 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1922 		nbytes -= req_ctx->nbuf;
1924 	return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0,
1933 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1938 	req_ctx->buf_idx = 0;
1939 	req_ctx->nbuf = 0;
1940 	req_ctx->first = 1; /* first indicates h/w must init its context */
1941 	req_ctx->swinit = 0; /* assume h/w init of context */
1945 	req_ctx->hw_context_size = size;
1947 	dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
1949 	dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_TO_DEVICE);
1960 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1962 	req_ctx->hw_context[0] = SHA224_H0;
1963 	req_ctx->hw_context[1] = SHA224_H1;
1964 	req_ctx->hw_context[2] = SHA224_H2;
1965 	req_ctx->hw_context[3] = SHA224_H3;
1966 	req_ctx->hw_context[4] = SHA224_H4;
1967 	req_ctx->hw_context[5] = SHA224_H5;
1968 	req_ctx->hw_context[6] = SHA224_H6;
1969 	req_ctx->hw_context[7] = SHA224_H7;
1972 	req_ctx->hw_context[8] = 0;
1973 	req_ctx->hw_context[9] = 0;
1976 	req_ctx->swinit = 1;/* prevent h/w initting context with sha256 values*/
1985 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
1996 	u8 *ctx_buf = req_ctx->buf[req_ctx->buf_idx];
1998 	if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
2006 				  ctx_buf + req_ctx->nbuf, nbytes);
2007 		req_ctx->nbuf += nbytes;
2012 	nbytes_to_hash = nbytes + req_ctx->nbuf;
2015 	if (req_ctx->last)
2027 	if (!is_sec1 && req_ctx->nbuf) {
2028 		nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1;
2029 		sg_init_table(req_ctx->bufsl, nsg);
2030 		sg_set_buf(req_ctx->bufsl, ctx_buf, req_ctx->nbuf);
2032 			sg_chain(req_ctx->bufsl, 2, areq->src);
2033 		req_ctx->psrc = req_ctx->bufsl;
2034 	} else if (is_sec1 && req_ctx->nbuf && req_ctx->nbuf < blocksize) {
2038 			offset = blocksize - req_ctx->nbuf;
2040 			offset = nbytes_to_hash - req_ctx->nbuf;
2047 				  ctx_buf + req_ctx->nbuf, offset);
2048 		req_ctx->nbuf += offset;
2049 		req_ctx->psrc = scatterwalk_ffwd(req_ctx->bufsl, areq->src,
2052 		req_ctx->psrc = areq->src;
2061 				   req_ctx->buf[(req_ctx->buf_idx + 1) & 1],
2065 	req_ctx->to_hash_later = to_hash_later;
2075 	if (req_ctx->last)
2081 	if (req_ctx->first && !req_ctx->swinit)
2087 	if (ctx->keylen && (req_ctx->first || req_ctx->last))
2095 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2097 	req_ctx->last = 0;
2104 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2106 	req_ctx->last = 1;
2113 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2115 	req_ctx->last = 1;
2134 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2141 	dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
2143 	dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_FROM_DEVICE);
2145 	memcpy(export->hw_context, req_ctx->hw_context,
2146 	       req_ctx->hw_context_size);
2147 	memcpy(export->buf, req_ctx->buf[req_ctx->buf_idx], req_ctx->nbuf);
2148 	export->swinit = req_ctx->swinit;
2149 	export->first = req_ctx->first;
2150 	export->last = req_ctx->last;
2151 	export->to_hash_later = req_ctx->to_hash_later;
2152 	export->nbuf = req_ctx->nbuf;
2159 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
2167 	memset(req_ctx, 0, sizeof(*req_ctx));
2171 	req_ctx->hw_context_size = size;
2172 	memcpy(req_ctx->hw_context, export->hw_context, size);
2173 	memcpy(req_ctx->buf[0], export->buf, export->nbuf);
2174 	req_ctx->swinit = export->swinit;
2175 	req_ctx->first = export->first;
2176 	req_ctx->last = export->last;
2177 	req_ctx->to_hash_later = export->to_hash_later;
2178 	req_ctx->nbuf = export->nbuf;
2180 	dma = dma_map_single(dev, req_ctx->hw_context, req_ctx->hw_context_size,
2182 	dma_unmap_single(dev, dma, req_ctx->hw_context_size, DMA_TO_DEVICE);