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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* Authors:
* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#ifndef __SANDBOX_ARM_FFA_PRV_H
#define __SANDBOX_ARM_FFA_PRV_H
#include <arm_ffa_priv.h>
/* This header is exclusively used by the Sandbox FF-A driver and emulator */
/* Non-secure physical FF-A instance */
#define NS_PHYS_ENDPOINT_ID (0)
#define GET_NS_PHYS_ENDPOINT_ID_MASK GENMASK(31, 16)
#define GET_NS_PHYS_ENDPOINT_ID(x) \
((u16)(FIELD_GET(GET_NS_PHYS_ENDPOINT_ID_MASK, (x))))
/* Helper macro for reading the destination partition ID */
#define GET_DST_SP_ID_MASK GENMASK(15, 0)
#define GET_DST_SP_ID(x) \
((u16)(FIELD_GET(GET_DST_SP_ID_MASK, (x))))
/* Helper macro for setting the source partition ID */
#define PREP_SRC_SP_ID_MASK GENMASK(31, 16)
#define PREP_SRC_SP_ID(x) \
(FIELD_PREP(PREP_SRC_SP_ID_MASK, (x)))
/* Helper macro for setting the destination endpoint ID */
#define PREP_NS_PHYS_ENDPOINT_ID_MASK GENMASK(15, 0)
#define PREP_NS_PHYS_ENDPOINT_ID(x) \
(FIELD_PREP(PREP_NS_PHYS_ENDPOINT_ID_MASK, (x)))
/* RX/TX buffers minimum size */
#define RXTX_BUFFERS_MIN_SIZE (RXTX_4K)
#define RXTX_BUFFERS_MIN_PAGES (1)
/* MBZ registers info */
/* x1-x7 MBZ */
#define FFA_X1X7_MBZ_CNT (7)
#define FFA_X1X7_MBZ_REG_START (&res->a1)
/* x4-x7 MBZ */
#define FFA_X4X7_MBZ_CNT (4)
#define FFA_X4X7_MBZ_REG_START (&res->a4)
/* x3-x7 MBZ */
#define FFA_X3X7_MBZ_CNT (5)
#define FFA_X3_MBZ_REG_START (&res->a3)
/* number of emulated FF-A secure partitions (SPs) */
#define SANDBOX_PARTITIONS_CNT (4)
/* Binary data of the emulated services UUIDs */
/* service 1 UUID binary data (little-endian format) */
#define SANDBOX_SERVICE1_UUID_A1 0xed32d533
#define SANDBOX_SERVICE1_UUID_A2 0x99e64209
#define SANDBOX_SERVICE1_UUID_A3 0x9cc02d72
#define SANDBOX_SERVICE1_UUID_A4 0xcdd998a7
/* service 2 UUID binary data (little-endian format) */
#define SANDBOX_SERVICE2_UUID_A1 0xed32d544
#define SANDBOX_SERVICE2_UUID_A2 0x99e64209
#define SANDBOX_SERVICE2_UUID_A3 0x9cc02d72
#define SANDBOX_SERVICE2_UUID_A4 0xcdd998a7
/**
* struct ffa_rxtxpair_info - structure hosting the RX/TX buffers flags
* @rxbuf_owned: RX buffer ownership flag (the owner is non secure world)
* @rxbuf_mapped: RX buffer mapping flag
* @txbuf_owned TX buffer ownership flag
* @txbuf_mapped: TX buffer mapping flag
* @rxtx_buf_size: RX/TX buffers size
*
* Hosts the ownership/mapping flags of the RX/TX buffers
* When a buffer is owned/mapped its corresponding flag is set to 1 otherwise 0.
*/
struct ffa_rxtxpair_info {
u8 rxbuf_owned;
u8 rxbuf_mapped;
u8 txbuf_owned;
u8 txbuf_mapped;
u32 rxtx_buf_size;
};
/**
* struct sandbox_ffa_emul - emulator data
*
* @fwk_version: FF-A framework version
* @id: u-boot endpoint ID
* @partitions: The partitions descriptors structure
* @pair: The RX/TX buffers pair
* @pair_info: The RX/TX buffers pair flags and size
* @test_ffa_data: The data of the FF-A bus under test
*
* Hosts all the emulated secure world data.
*/
struct sandbox_ffa_emul {
u32 fwk_version;
u16 id;
struct ffa_partitions partitions;
struct ffa_rxtxpair pair;
struct ffa_rxtxpair_info pair_info;
};
/**
* ffa_emul_find() - Finds the FF-A emulator
* @dev: the sandbox FF-A device (sandbox-arm-ffa)
* @emulp: the FF-A emulator device (sandbox-ffa-emul)
* Return:
* 0 on success. Otherwise, failure
*/
int ffa_emul_find(struct udevice *dev, struct udevice **emulp);
#endif
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