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firmware: ti_sci: Add support for processor control services

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TI-SCI message protocol provides support for controlling of various
physical cores available in SoC. In order to control which host is
capable of controlling a physical processor core, there is a processor
access control list that needs to be populated as part of the board
configuration data.

Introduce support for the set of TI-SCI message protocol apis that
provide us with this capability of controlling physical cores.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2018-08-27 15:57:37 +05:30 • committed by Tom Rini
parent f369b0f26c
commit ccbc8b2fdd
3 changed files with 589 additions and 0 deletions
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37
include/linux/soc/ti/ti_sci_protocol.h
View file

@ -222,18 +222,55 @@ struct ti_sci_core_ops {
int (*reboot_device)(const struct ti_sci_handle *handle);
};
/**
* struct ti_sci_proc_ops - Processor specific operations.
*
* @proc_request: Request for controlling a physical processor.
* The requesting host should be in the processor access list.
* @proc_release: Relinquish a physical processor control
* @proc_handover: Handover a physical processor control to another host
* in the permitted list.
* @set_proc_boot_cfg: Base configuration of the processor
* @set_proc_boot_ctrl: Setup limited control flags in specific cases.
* @proc_auth_boot_image:
* @get_proc_boot_status: Get the state of physical processor
*
* NOTE: for all these functions, the following parameters are generic in
* nature:
* -handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
* -pid: Processor ID
*
*/
struct ti_sci_proc_ops {
int (*proc_request)(const struct ti_sci_handle *handle, u8 pid);
int (*proc_release)(const struct ti_sci_handle *handle, u8 pid);
int (*proc_handover)(const struct ti_sci_handle *handle, u8 pid,
u8 hid);
int (*set_proc_boot_cfg)(const struct ti_sci_handle *handle, u8 pid,
u64 bv, u32 cfg_set, u32 cfg_clr);
int (*set_proc_boot_ctrl)(const struct ti_sci_handle *handle, u8 pid,
u32 ctrl_set, u32 ctrl_clr);
int (*proc_auth_boot_image)(const struct ti_sci_handle *handle, u8 pid,
u64 caddr);
int (*get_proc_boot_status)(const struct ti_sci_handle *handle, u8 pid,
u64 *bv, u32 *cfg_flags, u32 *ctrl_flags,
u32 *sts_flags);
};
/**
* struct ti_sci_ops - Function support for TI SCI
* @board_ops: Miscellaneous operations
* @dev_ops: Device specific operations
* @clk_ops: Clock specific operations
* @core_ops: Core specific operations
* @proc_ops: Processor specific operations
*/
struct ti_sci_ops {
struct ti_sci_board_ops board_ops;
struct ti_sci_dev_ops dev_ops;
struct ti_sci_clk_ops clk_ops;
struct ti_sci_core_ops core_ops;
struct ti_sci_proc_ops proc_ops;
};
/**