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733f5c28e5
Define ARCH_HIBERNATION_POSSIBLE in Kconfig and implement hibernation callbacks. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
25 lines
556 B
C
25 lines
556 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/mm.h>
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#include <linux/suspend.h>
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#include <asm/coprocessor.h>
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int pfn_is_nosave(unsigned long pfn)
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{
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unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
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unsigned long nosave_end_pfn = PFN_UP(__pa(&__nosave_end));
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return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn);
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}
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void notrace save_processor_state(void)
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{
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WARN_ON(num_online_cpus() != 1);
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#if XTENSA_HAVE_COPROCESSORS
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local_coprocessors_flush_release_all();
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#endif
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}
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void notrace restore_processor_state(void)
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{
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}
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