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185f812c41
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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
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*/
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#ifndef __ASM_INTEL_ACPI_H__
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#define __ASM_INTEL_ACPI_H__
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struct acpi_cstate;
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struct acpi_ctx;
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struct acpi_tstate;
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struct udevice;
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/**
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* acpi_generate_cpu_header() - Start generating an ACPI CPU entry
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*
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* Generates the ACPI information for a CPU. After this, the caller should
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* generate_p_state_entries(), generate_t_state_entries and then
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* acpigen_pop_len() to close off this package.
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*
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* @ctx: ACPI context pointer
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* @core_id: CPU core number, as numbered by the SoC
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* @c_state_map: Information about each C state
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* @num_cstates: Number of entries in @c_state_map
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* Return: 0 if OK, -ve on error
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*/
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int acpi_generate_cpu_header(struct acpi_ctx *ctx, int core_id,
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const struct acpi_cstate *c_state_map,
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int num_cstates);
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/**
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* acpi_generate_cpu_package_final() - Write out the CPU PPKG entry
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*
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* This writes information about the CPUs in the package
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*
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* @ctx: ACPI context pointer
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* @cores_per_package: Number of CPU cores in each package in the SoC
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*/
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int acpi_generate_cpu_package_final(struct acpi_ctx *ctx,
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int cores_per_package);
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void generate_p_state_entries(struct acpi_ctx *ctx, int core,
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int cores_per_package);
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void generate_t_state_entries(struct acpi_ctx *ctx, int core,
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int cores_per_package, struct acpi_tstate *entry,
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int nentries);
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int southbridge_inject_dsdt(const struct udevice *dev, struct acpi_ctx *ctx);
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int intel_southbridge_write_acpi_tables(const struct udevice *dev,
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struct acpi_ctx *ctx);
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#endif /* __ASM_INTEL_ACPI_H__ */
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