threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
44 lines
989 B
C
44 lines
989 B
C
/*
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* Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
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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_ARC_MMZONE_H
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#define _ASM_ARC_MMZONE_H
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#ifdef CONFIG_DISCONTIGMEM
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extern struct pglist_data node_data[];
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#define NODE_DATA(nid) (&node_data[nid])
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static inline int pfn_to_nid(unsigned long pfn)
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{
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int is_end_low = 1;
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if (IS_ENABLED(CONFIG_ARC_HAS_PAE40))
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is_end_low = pfn <= virt_to_pfn(0xFFFFFFFFUL);
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/*
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* node 0: lowmem: 0x8000_0000 to 0xFFFF_FFFF
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* node 1: HIGHMEM w/o PAE40: 0x0 to 0x7FFF_FFFF
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* HIGHMEM with PAE40: 0x1_0000_0000 to ...
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*/
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if (pfn >= ARCH_PFN_OFFSET && is_end_low)
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return 0;
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return 1;
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}
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static inline int pfn_valid(unsigned long pfn)
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{
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int nid = pfn_to_nid(pfn);
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return (pfn <= node_end_pfn(nid));
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}
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#endif /* CONFIG_DISCONTIGMEM */
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#endif
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