mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 08:16:41 +07:00
7f8998c7ae
The different architectures used their own (and different) declarations:
extern __visible const void __nosave_begin, __nosave_end;
extern const void __nosave_begin, __nosave_end;
extern long __nosave_begin, __nosave_end;
Consolidate them using the first variant in <asm/sections.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
44 lines
859 B
C
44 lines
859 B
C
/*
|
|
* Suspend support specific for mips.
|
|
*
|
|
* Licensed under the GPLv2
|
|
*
|
|
* Copyright (C) 2009 Lemote Inc.
|
|
* Author: Hu Hongbing <huhb@lemote.com>
|
|
* Wu Zhangjin <wuzhangjin@gmail.com>
|
|
*/
|
|
#include <asm/sections.h>
|
|
#include <asm/fpu.h>
|
|
#include <asm/dsp.h>
|
|
|
|
static u32 saved_status;
|
|
struct pt_regs saved_regs;
|
|
|
|
void save_processor_state(void)
|
|
{
|
|
saved_status = read_c0_status();
|
|
|
|
if (is_fpu_owner())
|
|
save_fp(current);
|
|
if (cpu_has_dsp)
|
|
save_dsp(current);
|
|
}
|
|
|
|
void restore_processor_state(void)
|
|
{
|
|
write_c0_status(saved_status);
|
|
|
|
if (is_fpu_owner())
|
|
restore_fp(current);
|
|
if (cpu_has_dsp)
|
|
restore_dsp(current);
|
|
}
|
|
|
|
int pfn_is_nosave(unsigned long pfn)
|
|
{
|
|
unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
|
|
unsigned long nosave_end_pfn = PFN_UP(__pa(&__nosave_end));
|
|
|
|
return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
|
|
}
|