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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | /* SPDX-License-Identifier: GPL-2.0+ */ /* Copyright 2013-2016 Freescale Semiconductor, Inc. * Copyright 2017 NXP */ #ifndef __FSL_MC_CMD_H #define __FSL_MC_CMD_H #define MC_CMD_NUM_OF_PARAMS 7 #define MAKE_UMASK64(_width) \ ((uint64_t)((_width) < 64 ? ((uint64_t)1 << (_width)) - 1 : -1)) static inline uint64_t mc_enc(int lsoffset, int width, uint64_t val) { return (uint64_t)(((uint64_t)val & MAKE_UMASK64(width)) << lsoffset); } static inline uint64_t mc_dec(uint64_t val, int lsoffset, int width) { return (uint64_t)((val >> lsoffset) & MAKE_UMASK64(width)); } struct mc_cmd_header { u8 src_id; u8 flags_hw; u8 status; u8 flags_sw; __le16 token; __le16 cmd_id; }; struct mc_command { uint64_t header; uint64_t params[MC_CMD_NUM_OF_PARAMS]; }; struct mc_rsp_create { __le32 object_id; }; struct mc_rsp_api_ver { __le16 major_ver; __le16 minor_ver; }; 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 0x00008000 /* No flags */ #define MC_CMD_NO_FLAGS 0x00000000 /* Command completion flag */ #define MC_CMD_FLAG_INTR_DIS 0x01000000 #define MC_CMD_HDR_CMDID_O 48 /* Command ID field offset */ #define MC_CMD_HDR_CMDID_S 16 /* Command ID field size */ #define MC_CMD_HDR_STATUS_O 16 /* Status field offset */ #define MC_CMD_HDR_TOKEN_O 32 /* Token field offset */ #define MC_CMD_HDR_TOKEN_S 16 /* Token field size */ #define MC_CMD_HDR_STATUS_S 8 /* Status field size*/ #define MC_CMD_HDR_FLAGS_O 0 /* Flags field offset */ #define MC_CMD_HDR_FLAGS_S 32 /* Flags field size*/ #define MC_CMD_HDR_FLAGS_MASK 0x0000FFFF /* Command flags mask */ #define MC_CMD_HDR_READ_STATUS(_hdr) \ ((enum mc_cmd_status)mc_dec((_hdr), \ MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S)) static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id, uint32_t cmd_flags, uint16_t token) { uint64_t hdr = 0; hdr = mc_enc(MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S, cmd_id); hdr |= mc_enc(MC_CMD_HDR_FLAGS_O, MC_CMD_HDR_FLAGS_S, (cmd_flags & MC_CMD_HDR_FLAGS_MASK)); hdr |= mc_enc(MC_CMD_HDR_TOKEN_O, MC_CMD_HDR_TOKEN_S, token); hdr |= mc_enc(MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S, MC_CMD_STATUS_READY); return hdr; } /** * 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) { int i; /* copy command parameters into the portal */ for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++) writeq(cmd->params[i], &portal->params[i]); /* submit the command by writing the header */ writeq(cmd->header, &portal->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 = readq(&portal->header); status = MC_CMD_HDR_READ_STATUS(resp->header); 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] = readq(&portal->params[i]); return status; } /** * mc_read_version - read version of the given cmd * * @cmd: pointer to a filled command * @major_version: major version value for the given cmd * @minor_version: minor version value for the given cmd */ static inline void mc_cmd_read_api_version(struct mc_command *cmd, u16 *major_ver, u16 *minor_ver) { struct mc_rsp_api_ver *rsp_params; rsp_params = (struct mc_rsp_api_ver *)cmd->params; *major_ver = le16_to_cpu(rsp_params->major_ver); *minor_ver = le16_to_cpu(rsp_params->minor_ver); } static inline uint16_t mc_cmd_hdr_read_token(struct mc_command *cmd) { struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header; u16 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); } #endif /* __FSL_MC_CMD_H */ |