4 #include <crypto/dh.h>
82 		struct hpre_dh_ctx dh;  member
93 		struct kpp_request *dh;  member
236 	/* when the data is dh's source, we should format it */  in hpre_hw_data_init()
376 	areq = req->areq.dh;  in hpre_dh_cb()
471 		h_req->areq.dh = kreq;  in hpre_msg_request_set()
474 		msg->key = cpu_to_le64(ctx->dh.dma_xa_p);  in hpre_msg_request_set()
532 		msg->in = cpu_to_le64(ctx->dh.dma_g);  in hpre_dh_compute_value()
577 static int hpre_dh_set_params(struct hpre_ctx *ctx, struct dh *params)  in hpre_dh_set_params()
590 	ctx->dh.xa_p = dma_alloc_coherent(dev, sz << 1,  in hpre_dh_set_params()
591 					  &ctx->dh.dma_xa_p, GFP_KERNEL);  in hpre_dh_set_params()
592 	if (!ctx->dh.xa_p)  in hpre_dh_set_params()
595 	memcpy(ctx->dh.xa_p + sz, params->p, sz);  in hpre_dh_set_params()
603 	ctx->dh.g = dma_alloc_coherent(dev, sz, &ctx->dh.dma_g, GFP_KERNEL);  in hpre_dh_set_params()
604 	if (!ctx->dh.g) {  in hpre_dh_set_params()
605 		dma_free_coherent(dev, sz << 1, ctx->dh.xa_p,  in hpre_dh_set_params()
606 				  ctx->dh.dma_xa_p);  in hpre_dh_set_params()
607 		ctx->dh.xa_p = NULL;  in hpre_dh_set_params()
611 	memcpy(ctx->dh.g + (sz - params->g_size), params->g, params->g_size);  in hpre_dh_set_params()
624 	if (ctx->dh.g) {  in hpre_dh_clear_ctx()
625 		dma_free_coherent(dev, sz, ctx->dh.g, ctx->dh.dma_g);  in hpre_dh_clear_ctx()
626 		ctx->dh.g = NULL;  in hpre_dh_clear_ctx()
629 	if (ctx->dh.xa_p) {  in hpre_dh_clear_ctx()
630 		memzero_explicit(ctx->dh.xa_p, sz);  in hpre_dh_clear_ctx()
631 		dma_free_coherent(dev, sz << 1, ctx->dh.xa_p,  in hpre_dh_clear_ctx()
632 				  ctx->dh.dma_xa_p);  in hpre_dh_clear_ctx()
633 		ctx->dh.xa_p = NULL;  in hpre_dh_clear_ctx()
643 	struct dh params;  in hpre_dh_set_secret()
656 	memcpy(ctx->dh.xa_p + (ctx->key_sz - params.key_size), params.key,  in hpre_dh_set_secret()
1139 static struct kpp_alg dh = {  variable
1150 		.cra_name = "dh",
1151 		.cra_driver_name = "hpre-dh",
1166 	ret = crypto_register_kpp(&dh);  in hpre_algs_register()
1178 	crypto_unregister_kpp(&dh);  in hpre_algs_unregister()