diff options
Diffstat (limited to 'src/soc/intel/common/block/include')
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/pmc_ipc.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/pmc_ipc.h b/src/soc/intel/common/block/include/intelblocks/pmc_ipc.h new file mode 100644 index 0000000000..0c90cd7df6 --- /dev/null +++ b/src/soc/intel/common/block/include/intelblocks/pmc_ipc.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef SOC_INTEL_COMMON_BLOCK_PMC_IPC_H +#define SOC_INTEL_COMMON_BLOCK_PMC_IPC_H + +#include <types.h> + +#define PMC_IPC_BUF_COUNT 4 + +#define PMC_IPC_CMD_COMMAND_SHIFT 0 +#define PMC_IPC_CMD_COMMAND_MASK 0xff +#define PMC_IPC_CMD_MSI_SHIFT 8 +#define PMC_IPC_CMD_MSI_MASK 0x01 +#define PMC_IPC_CMD_SUB_COMMAND_SHIFT 12 +#define PMC_IPC_CMD_SUB_COMMAND_MASK 0x0f +#define PMC_IPC_CMD_SIZE_SHIFT 16 +#define PMC_IPC_CMD_SIZE_MASK 0xff + +#define PMC_IPC_CMD_FIELD(name, val) \ + (((val) & PMC_IPC_CMD_##name##_MASK << PMC_IPC_CMD_##name##_SHIFT)) + +#define PMC_IPC_CMD_NO_MSI 0 + +/* + * Create the IPC CMD to send to PMC + */ +static inline uint32_t pmc_make_ipc_cmd(uint32_t cmd, uint32_t subcmd, + uint32_t size) +{ + return PMC_IPC_CMD_FIELD(COMMAND, cmd) | + PMC_IPC_CMD_FIELD(SUB_COMMAND, subcmd) | + PMC_IPC_CMD_FIELD(MSI, PMC_IPC_CMD_NO_MSI) | + PMC_IPC_CMD_FIELD(SIZE, size); +} + +/* + * Buffer for holding write and read buffers of IPC commands + */ +struct pmc_ipc_buffer { + uint32_t buf[PMC_IPC_BUF_COUNT]; +}; + +/* + * Send PMC IPC command + */ +enum cb_err pmc_send_ipc_cmd(uint32_t cmd, const struct pmc_ipc_buffer *wbuf, + struct pmc_ipc_buffer *rbuf); + +#endif /* SOC_INTEL_COMMON_BLOCK_PMC_IPC_H */ |