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eca5dc2a00
The macros for invoking functions via the processor struct in the MULTI_CPU case define the arguments as part of the macros, making it impossible to take the address of those functions. This patch removes the arguments from the macro definitions so that we can take the address of these functions like we can for the !MULTI_CPU case. Reported-by: Frank Hofmann <frank.hofmann@tomtom.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/*
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* arch/arm/include/asm/proc-fns.h
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*
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* Copyright (C) 1997-1999 Russell King
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_PROCFNS_H
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#define __ASM_PROCFNS_H
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#ifdef __KERNEL__
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#include <asm/glue-proc.h>
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#include <asm/page.h>
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#ifndef __ASSEMBLY__
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struct mm_struct;
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/*
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* Don't change this structure - ASM code relies on it.
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*/
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extern struct processor {
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/* MISC
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* get data abort address/flags
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*/
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void (*_data_abort)(unsigned long pc);
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/*
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* Retrieve prefetch fault address
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*/
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unsigned long (*_prefetch_abort)(unsigned long lr);
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/*
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* Set up any processor specifics
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*/
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void (*_proc_init)(void);
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/*
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* Disable any processor specifics
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*/
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void (*_proc_fin)(void);
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/*
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* Special stuff for a reset
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*/
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void (*reset)(unsigned long addr) __attribute__((noreturn));
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/*
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* Idle the processor
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*/
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int (*_do_idle)(void);
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/*
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* Processor architecture specific
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*/
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/*
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* clean a virtual address range from the
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* D-cache without flushing the cache.
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*/
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void (*dcache_clean_area)(void *addr, int size);
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/*
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* Set the page table
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*/
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void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
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/*
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* Set a possibly extended PTE. Non-extended PTEs should
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* ignore 'ext'.
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*/
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void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
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/* Suspend/resume */
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unsigned int suspend_size;
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void (*do_suspend)(void *);
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void (*do_resume)(void *);
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} processor;
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#ifndef MULTI_CPU
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extern void cpu_proc_init(void);
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extern void cpu_proc_fin(void);
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extern int cpu_do_idle(void);
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extern void cpu_dcache_clean_area(void *, int);
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extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
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extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
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extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
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#else
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#define cpu_proc_init processor._proc_init
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#define cpu_proc_fin processor._proc_fin
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#define cpu_reset processor.reset
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#define cpu_do_idle processor._do_idle
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#define cpu_dcache_clean_area processor.dcache_clean_area
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#define cpu_set_pte_ext processor.set_pte_ext
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#define cpu_do_switch_mm processor.switch_mm
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#endif
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extern void cpu_resume(void);
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#include <asm/memory.h>
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#ifdef CONFIG_MMU
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#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
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#define cpu_get_pgd() \
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({ \
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unsigned long pg; \
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__asm__("mrc p15, 0, %0, c2, c0, 0" \
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: "=r" (pg) : : "cc"); \
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pg &= ~0x3fff; \
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(pgd_t *)phys_to_virt(pg); \
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})
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* __ASM_PROCFNS_H */
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