1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2022, Arm Limited. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu * 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu #include <assert.h> 8*91f16700Schasinglulu 9*91f16700Schasinglulu #include "rss_comms_protocol_pointer_access.h" 10*91f16700Schasinglulu 11*91f16700Schasinglulu #define TYPE_OFFSET (16U) 12*91f16700Schasinglulu #define TYPE_MASK (0xFFFFUL << TYPE_OFFSET) 13*91f16700Schasinglulu #define IN_LEN_OFFSET (8U) 14*91f16700Schasinglulu #define IN_LEN_MASK (0xFFUL << IN_LEN_OFFSET) 15*91f16700Schasinglulu #define OUT_LEN_OFFSET (0U) 16*91f16700Schasinglulu #define OUT_LEN_MASK (0xFFUL << OUT_LEN_OFFSET) 17*91f16700Schasinglulu 18*91f16700Schasinglulu #define PARAM_PACK(type, in_len, out_len) \ 19*91f16700Schasinglulu (((((uint32_t)type) << TYPE_OFFSET) & TYPE_MASK) | \ 20*91f16700Schasinglulu ((((uint32_t)in_len) << IN_LEN_OFFSET) & IN_LEN_MASK) | \ 21*91f16700Schasinglulu ((((uint32_t)out_len) << OUT_LEN_OFFSET) & OUT_LEN_MASK)) 22*91f16700Schasinglulu 23*91f16700Schasinglulu psa_status_t rss_protocol_pointer_access_serialize_msg(psa_handle_t handle, 24*91f16700Schasinglulu int16_t type, 25*91f16700Schasinglulu const psa_invec *in_vec, 26*91f16700Schasinglulu uint8_t in_len, 27*91f16700Schasinglulu const psa_outvec *out_vec, 28*91f16700Schasinglulu uint8_t out_len, 29*91f16700Schasinglulu struct rss_pointer_access_msg_t *msg, 30*91f16700Schasinglulu size_t *msg_len) 31*91f16700Schasinglulu { 32*91f16700Schasinglulu unsigned int i; 33*91f16700Schasinglulu 34*91f16700Schasinglulu assert(msg != NULL); 35*91f16700Schasinglulu assert(msg_len != NULL); 36*91f16700Schasinglulu assert(in_vec != NULL); 37*91f16700Schasinglulu 38*91f16700Schasinglulu msg->ctrl_param = PARAM_PACK(type, in_len, out_len); 39*91f16700Schasinglulu msg->handle = handle; 40*91f16700Schasinglulu 41*91f16700Schasinglulu /* Fill msg iovec lengths */ 42*91f16700Schasinglulu for (i = 0U; i < in_len; ++i) { 43*91f16700Schasinglulu msg->io_sizes[i] = in_vec[i].len; 44*91f16700Schasinglulu msg->host_ptrs[i] = (uint64_t)in_vec[i].base; 45*91f16700Schasinglulu } 46*91f16700Schasinglulu for (i = 0U; i < out_len; ++i) { 47*91f16700Schasinglulu msg->io_sizes[in_len + i] = out_vec[i].len; 48*91f16700Schasinglulu msg->host_ptrs[in_len + i] = (uint64_t)out_vec[i].base; 49*91f16700Schasinglulu } 50*91f16700Schasinglulu 51*91f16700Schasinglulu *msg_len = sizeof(*msg); 52*91f16700Schasinglulu 53*91f16700Schasinglulu return PSA_SUCCESS; 54*91f16700Schasinglulu } 55*91f16700Schasinglulu 56*91f16700Schasinglulu psa_status_t rss_protocol_pointer_access_deserialize_reply(psa_outvec *out_vec, 57*91f16700Schasinglulu uint8_t out_len, 58*91f16700Schasinglulu psa_status_t *return_val, 59*91f16700Schasinglulu const struct rss_pointer_access_reply_t *reply, 60*91f16700Schasinglulu size_t reply_size) 61*91f16700Schasinglulu { 62*91f16700Schasinglulu unsigned int i; 63*91f16700Schasinglulu 64*91f16700Schasinglulu assert(reply != NULL); 65*91f16700Schasinglulu assert(return_val != NULL); 66*91f16700Schasinglulu 67*91f16700Schasinglulu for (i = 0U; i < out_len; ++i) { 68*91f16700Schasinglulu out_vec[i].len = reply->out_sizes[i]; 69*91f16700Schasinglulu } 70*91f16700Schasinglulu 71*91f16700Schasinglulu *return_val = reply->return_val; 72*91f16700Schasinglulu 73*91f16700Schasinglulu return PSA_SUCCESS; 74*91f16700Schasinglulu } 75