linux-stable/arch/x86/include/asm/prom.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Definitions for Device tree / OpenFirmware handling on X86
*
* based on arch/powerpc/include/asm/prom.h which is
* Copyright (C) 1996-2005 Paul Mackerras.
*/
#ifndef _ASM_X86_PROM_H
#define _ASM_X86_PROM_H
#ifndef __ASSEMBLY__
#include <linux/of.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/irq.h>
#include <linux/atomic.h>
#include <asm/setup.h>
#ifdef CONFIG_OF
extern int of_ioapic;
extern u64 initial_dtb;
extern void add_dtb(u64 data);
x86: delete __cpuinit usage from all x86 files The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) are flagged as __cpuinit -- so if we remove the __cpuinit from arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the arch/x86 uses of the __cpuinit macros from all C files. x86 only had the one __CPUINIT used in assembly files, and it wasn't paired off with a .previous or a __FINIT, so we can delete it directly w/o any corresponding additional change there. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-18 22:23:59 +00:00
void x86_of_pci_init(void);
void x86_dtb_init(void);
#else
static inline void add_dtb(u64 data) { }
static inline void x86_of_pci_init(void) { }
static inline void x86_dtb_init(void) { }
#define of_ioapic 0
#endif
extern char cmd_line[COMMAND_LINE_SIZE];
#endif /* __ASSEMBLY__ */
#endif