1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
3 * Copyright 2013-2016 Freescale Semiconductor Inc.
4 * Copyright 2016-2017 NXP
10 #include <rte_byteorder.h>
13 #define MC_CMD_NUM_OF_PARAMS 7
15 #define phys_addr_t uint64_t
22 #define cpu_to_le64 rte_cpu_to_le_64
23 #define cpu_to_le32 rte_cpu_to_le_32
24 #define cpu_to_le16 rte_cpu_to_le_16
26 #define le64_to_cpu rte_le_to_cpu_64
27 #define le32_to_cpu rte_le_to_cpu_32
28 #define le16_to_cpu rte_le_to_cpu_16
30 #define BITS_PER_LONG 64
31 #define GENMASK(h, l) \
32 (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
34 struct mc_cmd_header {
50 uint64_t params[MC_CMD_NUM_OF_PARAMS];
53 struct mc_rsp_create {
58 MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
59 MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
60 MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
61 MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
62 MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
63 MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
64 MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
65 MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
66 MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
67 MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
68 MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
69 MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
76 /* High priority flag */
77 #define MC_CMD_FLAG_PRI 0x80
78 /* Command completion flag */
79 #define MC_CMD_FLAG_INTR_DIS 0x01
81 #define MC_CMD_HDR_FLAGS_MASK 0xFF00FF00
83 int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
85 static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
90 struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header;
92 hdr->cmd_id = cpu_to_le16(cmd_id);
93 hdr->token = cpu_to_le16(token);
94 hdr->status = MC_CMD_STATUS_READY;
95 hdr->word[0] |= cpu_to_le32(cmd_flags & MC_CMD_HDR_FLAGS_MASK);
100 static inline uint16_t mc_cmd_hdr_read_token(struct mc_command *cmd)
102 struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
103 uint16_t token = le16_to_cpu(hdr->token);
108 static inline uint32_t mc_cmd_read_object_id(struct mc_command *cmd)
110 struct mc_rsp_create *rsp_params;
112 rsp_params = (struct mc_rsp_create *)cmd->params;
113 return le32_to_cpu(rsp_params->object_id);
116 static inline enum mc_cmd_status mc_cmd_read_status(struct mc_command *cmd)
118 struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
119 uint8_t status = hdr->status;
121 return (enum mc_cmd_status)status;
125 * mc_write_command - writes a command to a Management Complex (MC) portal
127 * @portal: pointer to an MC portal
128 * @cmd: pointer to a filled command
130 static inline void mc_write_command(struct mc_command __iomem *portal,
131 struct mc_command *cmd)
133 struct mc_cmd_header *cmd_header = (struct mc_cmd_header *)&cmd->header;
134 char *header = (char *)&portal->header;
137 /* copy command parameters into the portal */
138 for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
139 iowrite64(cmd->params[i], &portal->params[i]);
141 /* submit the command by writing the header */
142 iowrite32(le32_to_cpu(cmd_header->word[1]), (((uint32_t *)header) + 1));
143 iowrite32(le32_to_cpu(cmd_header->word[0]), (uint32_t *)header);
147 * mc_read_response - reads the response for the last MC command from a
148 * Management Complex (MC) portal
150 * @portal: pointer to an MC portal
151 * @resp: pointer to command response buffer
153 * Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
155 static inline enum mc_cmd_status mc_read_response(
156 struct mc_command __iomem *portal,
157 struct mc_command *resp)
160 enum mc_cmd_status status;
162 /* Copy command response header from MC portal: */
163 resp->header = ioread64(&portal->header);
164 status = mc_cmd_read_status(resp);
165 if (status != MC_CMD_STATUS_OK)
168 /* Copy command response data from MC portal: */
169 for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
170 resp->params[i] = ioread64(&portal->params[i]);
175 #endif /* __FSL_MC_CMD_H */