mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#ifndef __CPU_H
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#define __CPU_H
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/**
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* struct cpu_platdata - platform data for a CPU
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*
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* This can be accessed with dev_get_parent_platdata() for any UCLASS_CPU
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* device.
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*
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* @cpu_id: Platform-specific way of identifying the CPU.
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* @ucode_version: Microcode version, if CPU_FEAT_UCODE is set
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*/
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struct cpu_platdata {
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int cpu_id;
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int ucode_version;
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ulong device_id;
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u16 family; /* DMTF CPU Family */
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u32 id[2]; /* DMTF CPU Processor IDs */
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};
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/* CPU features - mostly just a placeholder for now */
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enum {
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CPU_FEAT_L1_CACHE = 0, /* Supports level 1 cache */
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CPU_FEAT_MMU = 1, /* Supports virtual memory */
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CPU_FEAT_UCODE = 2, /* Requires/uses microcode */
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CPU_FEAT_DEVICE_ID = 3, /* Provides a device ID */
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CPU_FEAT_COUNT,
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};
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/**
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* struct cpu_info - Information about a CPU
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*
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* @cpu_freq: Current CPU frequency in Hz
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* @features: Flags for supported CPU features
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*/
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struct cpu_info {
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ulong cpu_freq;
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ulong features;
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};
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struct cpu_ops {
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/**
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* get_desc() - Get a description string for a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @buf: Buffer to place string
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* @size: Size of string space
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* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
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*/
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int (*get_desc)(struct udevice *dev, char *buf, int size);
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/**
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* get_info() - Get information about a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @info: Returns CPU info
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* @return 0 if OK, -ve on error
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*/
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int (*get_info)(struct udevice *dev, struct cpu_info *info);
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/**
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* get_count() - Get number of CPUs
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*
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* @dev: Device to check (UCLASS_CPU)
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* @return CPU count if OK, -ve on error
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*/
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int (*get_count)(struct udevice *dev);
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/**
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* get_vendor() - Get vendor name of a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @buf: Buffer to place string
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* @size: Size of string space
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* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
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*/
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int (*get_vendor)(struct udevice *dev, char *buf, int size);
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};
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#define cpu_get_ops(dev) ((struct cpu_ops *)(dev)->driver->ops)
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/**
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* cpu_get_desc() - Get a description string for a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @buf: Buffer to place string
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* @size: Size of string space
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* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
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*/
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int cpu_get_desc(struct udevice *dev, char *buf, int size);
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/**
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* cpu_get_info() - Get information about a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @info: Returns CPU info
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* @return 0 if OK, -ve on error
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*/
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int cpu_get_info(struct udevice *dev, struct cpu_info *info);
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/**
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* cpu_get_count() - Get number of CPUs
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*
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* @dev: Device to check (UCLASS_CPU)
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* @return CPU count if OK, -ve on error
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*/
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int cpu_get_count(struct udevice *dev);
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/**
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* cpu_get_vendor() - Get vendor name of a CPU
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*
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* @dev: Device to check (UCLASS_CPU)
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* @buf: Buffer to place string
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* @size: Size of string space
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* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error
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*/
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int cpu_get_vendor(struct udevice *dev, char *buf, int size);
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#endif
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