mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 08:21:36 +01:00
9b3e6d4c1f
Add various tables that are common to Intel CPUs. These functions can be used by arch-specific CPU code. Signed-off-by: Simon Glass <sjg@chromium.org>
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
|
|
*/
|
|
|
|
#ifndef __ASM_INTEL_ACPI_H__
|
|
#define __ASM_INTEL_ACPI_H__
|
|
|
|
struct acpi_cstate;
|
|
struct acpi_ctx;
|
|
struct acpi_tstate;
|
|
struct udevice;
|
|
|
|
/**
|
|
* acpi_generate_cpu_header() - Start generating an ACPI CPU entry
|
|
*
|
|
* Generates the ACPI information for a CPU. After this, the caller should
|
|
* generate_p_state_entries(), generate_t_state_entries and then
|
|
* acpigen_pop_len() to close off this package.
|
|
*
|
|
* @ctx: ACPI context pointer
|
|
* @core_id: CPU core number, as numbered by the SoC
|
|
* @c_state_map: Information about each C state
|
|
* @num_cstates: Number of entries in @c_state_map
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int acpi_generate_cpu_header(struct acpi_ctx *ctx, int core_id,
|
|
const struct acpi_cstate *c_state_map,
|
|
int num_cstates);
|
|
|
|
/**
|
|
* acpi_generate_cpu_package_final() - Write out the CPU PPKG entry
|
|
*
|
|
* This writes information about the CPUs in the package
|
|
*
|
|
* @ctx: ACPI context pointer
|
|
* @cores_per_package: Number of CPU cores in each package in the SoC
|
|
*/
|
|
int acpi_generate_cpu_package_final(struct acpi_ctx *ctx,
|
|
int cores_per_package);
|
|
|
|
void generate_p_state_entries(struct acpi_ctx *ctx, int core,
|
|
int cores_per_package);
|
|
void generate_t_state_entries(struct acpi_ctx *ctx, int core,
|
|
int cores_per_package, struct acpi_tstate *entry,
|
|
int nentries);
|
|
int southbridge_inject_dsdt(const struct udevice *dev, struct acpi_ctx *ctx);
|
|
|
|
int intel_southbridge_write_acpi_tables(const struct udevice *dev,
|
|
struct acpi_ctx *ctx);
|
|
|
|
#endif /* __ASM_INTEL_ACPI_H__ */
|