/* SPDX-License-Identifier: GPL-2.0 */ /* * Intel Speed Select Interface: Drivers Internal defines * Copyright (c) 2019, Intel Corporation. * All rights reserved. * * Author: Srinivas Pandruvada <[email protected]> */ #ifndef __ISST_IF_COMMON_H #define __ISST_IF_COMMON_H #define PCI_DEVICE_ID_INTEL_RAPL_PRIO_DEVID_0 … #define PCI_DEVICE_ID_INTEL_CFG_MBOX_DEVID_0 … #define PCI_DEVICE_ID_INTEL_RAPL_PRIO_DEVID_1 … #define PCI_DEVICE_ID_INTEL_CFG_MBOX_DEVID_1 … #define MSR_OS_MAILBOX_INTERFACE … #define MSR_OS_MAILBOX_DATA … /* * Validate maximum commands in a single request. * This is enough to handle command to every core in one ioctl, or all * possible message id to one CPU. Limit is also helpful for resonse time * per IOCTL request, as PUNIT may take different times to process each * request and may hold for long for too many commands. */ #define ISST_IF_CMD_LIMIT … #define ISST_IF_API_VERSION … #define ISST_IF_DRIVER_VERSION … #define ISST_IF_DEV_MBOX … #define ISST_IF_DEV_MMIO … #define ISST_IF_DEV_TPMI … #define ISST_IF_DEV_MAX … /** * struct isst_if_cmd_cb - Used to register a IOCTL handler * @registered: Used by the common code to store registry. Caller don't * to touch this field * @cmd_size: The command size of the individual command in IOCTL * @offset: Offset to the first valid member in command structure. * This will be the offset of the start of the command * after command count field * @api_version: API version supported for this target. 0, if none. * @owner: Registered module owner * @cmd_callback: Callback function to handle IOCTL. The callback has the * command pointer with data for command. There is a pointer * called write_only, which when set, will not copy the * response to user ioctl buffer. The "resume" argument * can be used to avoid storing the command for replay * during system resume * @def_ioctl: Default IOCTL handler callback, if there is no match in * the existing list of IOCTL handled by the common handler. * * This structure is used to register an handler for IOCTL. To avoid * code duplication common code handles all the IOCTL command read/write * including handling multiple command in single IOCTL. The caller just * need to execute a command via the registered callback. */ struct isst_if_cmd_cb { … }; /* Internal interface functions */ int isst_if_cdev_register(int type, struct isst_if_cmd_cb *cb); void isst_if_cdev_unregister(int type); struct pci_dev *isst_if_get_pci_dev(int cpu, int bus, int dev, int fn); bool isst_if_mbox_cmd_set_req(struct isst_if_mbox_cmd *mbox_cmd); bool isst_if_mbox_cmd_invalid(struct isst_if_mbox_cmd *cmd); int isst_store_cmd(int cmd, int sub_command, u32 cpu, int mbox_cmd, u32 param, u64 data); void isst_resume_common(void); #endif
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