diff options
Diffstat (limited to 'roms/u-boot/arch/x86/include/asm/intel_acpi.h')
-rw-r--r-- | roms/u-boot/arch/x86/include/asm/intel_acpi.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/include/asm/intel_acpi.h b/roms/u-boot/arch/x86/include/asm/intel_acpi.h new file mode 100644 index 000000000..a5781f1af --- /dev/null +++ b/roms/u-boot/arch/x86/include/asm/intel_acpi.h @@ -0,0 +1,52 @@ +/* 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__ */ |