mirror of https://github.com/F-Stack/f-stack.git
209 lines
6.3 KiB
C
209 lines
6.3 KiB
C
/*-
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
|
* redistributing this file, you may do so under either license.
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright 2013-2016 Freescale Semiconductor Inc.
|
|
* Copyright 2016-2017 NXP.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of the above-listed copyright holders nor the
|
|
* names of any contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* GPL LICENSE SUMMARY
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") as published by the Free Software
|
|
* Foundation, either version 2 of that License or (at your option) any
|
|
* later version.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#ifndef __FSL_MC_CMD_H
|
|
#define __FSL_MC_CMD_H
|
|
|
|
#include <rte_byteorder.h>
|
|
#include <stdint.h>
|
|
|
|
#define MC_CMD_NUM_OF_PARAMS 7
|
|
|
|
#define phys_addr_t uint64_t
|
|
|
|
#define u64 uint64_t
|
|
#define u32 uint32_t
|
|
#define u16 uint16_t
|
|
#define u8 uint8_t
|
|
|
|
#define cpu_to_le64 rte_cpu_to_le_64
|
|
#define cpu_to_le32 rte_cpu_to_le_32
|
|
#define cpu_to_le16 rte_cpu_to_le_16
|
|
|
|
#define le64_to_cpu rte_le_to_cpu_64
|
|
#define le32_to_cpu rte_le_to_cpu_32
|
|
#define le16_to_cpu rte_le_to_cpu_16
|
|
|
|
#define BITS_PER_LONG 64
|
|
#define GENMASK(h, l) \
|
|
(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
|
|
|
|
struct mc_cmd_header {
|
|
union {
|
|
struct {
|
|
uint8_t src_id;
|
|
uint8_t flags_hw;
|
|
uint8_t status;
|
|
uint8_t flags_sw;
|
|
uint16_t token;
|
|
uint16_t cmd_id;
|
|
};
|
|
uint32_t word[2];
|
|
};
|
|
};
|
|
|
|
struct mc_command {
|
|
uint64_t header;
|
|
uint64_t params[MC_CMD_NUM_OF_PARAMS];
|
|
};
|
|
|
|
struct mc_rsp_create {
|
|
uint32_t object_id;
|
|
};
|
|
|
|
enum mc_cmd_status {
|
|
MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
|
|
MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
|
|
MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
|
|
MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
|
|
MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
|
|
MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
|
|
MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
|
|
MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
|
|
MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
|
|
MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
|
|
MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
|
|
MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
|
|
};
|
|
|
|
/*
|
|
* MC command flags
|
|
*/
|
|
|
|
/* High priority flag */
|
|
#define MC_CMD_FLAG_PRI 0x80
|
|
/* Command completion flag */
|
|
#define MC_CMD_FLAG_INTR_DIS 0x01
|
|
|
|
#define MC_CMD_HDR_FLAGS_MASK 0xFF00FF00
|
|
|
|
int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
|
|
|
|
static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
|
|
uint32_t cmd_flags,
|
|
uint16_t token)
|
|
{
|
|
uint64_t header = 0;
|
|
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header;
|
|
|
|
hdr->cmd_id = cpu_to_le16(cmd_id);
|
|
hdr->token = cpu_to_le16(token);
|
|
hdr->status = MC_CMD_STATUS_READY;
|
|
hdr->word[0] |= cpu_to_le32(cmd_flags & MC_CMD_HDR_FLAGS_MASK);
|
|
|
|
return header;
|
|
}
|
|
|
|
static inline uint16_t mc_cmd_hdr_read_token(struct mc_command *cmd)
|
|
{
|
|
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
|
|
uint16_t token = le16_to_cpu(hdr->token);
|
|
|
|
return token;
|
|
}
|
|
|
|
static inline uint32_t mc_cmd_read_object_id(struct mc_command *cmd)
|
|
{
|
|
struct mc_rsp_create *rsp_params;
|
|
|
|
rsp_params = (struct mc_rsp_create *)cmd->params;
|
|
return le32_to_cpu(rsp_params->object_id);
|
|
}
|
|
|
|
static inline enum mc_cmd_status mc_cmd_read_status(struct mc_command *cmd)
|
|
{
|
|
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
|
|
uint8_t status = hdr->status;
|
|
|
|
return (enum mc_cmd_status)status;
|
|
}
|
|
|
|
/**
|
|
* mc_write_command - writes a command to a Management Complex (MC) portal
|
|
*
|
|
* @portal: pointer to an MC portal
|
|
* @cmd: pointer to a filled command
|
|
*/
|
|
static inline void mc_write_command(struct mc_command __iomem *portal,
|
|
struct mc_command *cmd)
|
|
{
|
|
struct mc_cmd_header *cmd_header = (struct mc_cmd_header *)&cmd->header;
|
|
char *header = (char *)&portal->header;
|
|
int i;
|
|
|
|
/* copy command parameters into the portal */
|
|
for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
|
|
iowrite64(cmd->params[i], &portal->params[i]);
|
|
|
|
/* submit the command by writing the header */
|
|
iowrite32(le32_to_cpu(cmd_header->word[1]), (((uint32_t *)header) + 1));
|
|
iowrite32(le32_to_cpu(cmd_header->word[0]), (uint32_t *)header);
|
|
}
|
|
|
|
/**
|
|
* mc_read_response - reads the response for the last MC command from a
|
|
* Management Complex (MC) portal
|
|
*
|
|
* @portal: pointer to an MC portal
|
|
* @resp: pointer to command response buffer
|
|
*
|
|
* Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
|
|
*/
|
|
static inline enum mc_cmd_status mc_read_response(
|
|
struct mc_command __iomem *portal,
|
|
struct mc_command *resp)
|
|
{
|
|
int i;
|
|
enum mc_cmd_status status;
|
|
|
|
/* Copy command response header from MC portal: */
|
|
resp->header = ioread64(&portal->header);
|
|
status = mc_cmd_read_status(resp);
|
|
if (status != MC_CMD_STATUS_OK)
|
|
return status;
|
|
|
|
/* Copy command response data from MC portal: */
|
|
for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
|
|
resp->params[i] = ioread64(&portal->params[i]);
|
|
|
|
return status;
|
|
}
|
|
|
|
#endif /* __FSL_MC_CMD_H */
|