config GENERIC_CSUM
def_bool y
-config ARCH_DISCONTIGMEM_ENABLE
- def_bool n
- depends on BROKEN
-
config ARCH_FLATMEM_ENABLE
def_bool y
endchoice
-config NODES_SHIFT
- int "Maximum NUMA Nodes (as a power of 2)"
- default "0" if !DISCONTIGMEM
- default "1" if DISCONTIGMEM
- depends on NEED_MULTIPLE_NODES
- help
- Accessing memory beyond 1GB (with or w/o PAE) requires 2 memory
- zones.
-
config ARC_COMPACT_IRQ_LEVELS
depends on ISA_ARCOMPACT
bool "Setup Timer IRQ as high Priority"
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
- */
-
-#ifndef _ASM_ARC_MMZONE_H
-#define _ASM_ARC_MMZONE_H
-
-#ifdef CONFIG_DISCONTIGMEM
-
-extern struct pglist_data node_data[];
-#define NODE_DATA(nid) (&node_data[nid])
-
-static inline int pfn_to_nid(unsigned long pfn)
-{
- int is_end_low = 1;
-
- if (IS_ENABLED(CONFIG_ARC_HAS_PAE40))
- is_end_low = pfn <= virt_to_pfn(0xFFFFFFFFUL);
-
- /*
- * node 0: lowmem: 0x8000_0000 to 0xFFFF_FFFF
- * node 1: HIGHMEM w/o PAE40: 0x0 to 0x7FFF_FFFF
- * HIGHMEM with PAE40: 0x1_0000_0000 to ...
- */
- if (pfn >= ARCH_PFN_OFFSET && is_end_low)
- return 0;
-
- return 1;
-}
-
-static inline int pfn_valid(unsigned long pfn)
-{
- int nid = pfn_to_nid(pfn);
-
- return (pfn <= node_end_pfn(nid));
-}
-#endif /* CONFIG_DISCONTIGMEM */
-
-#endif
EXPORT_SYMBOL(arch_pfn_offset);
#endif
-#ifdef CONFIG_DISCONTIGMEM
-struct pglist_data node_data[MAX_NUMNODES] __read_mostly;
-EXPORT_SYMBOL(node_data);
-#endif
-
long __init arc_get_mem_sz(void)
{
return low_mem_sz;
* to the hole is freed and ARC specific version of pfn_valid()
* handles the hole in the memory map.
*/
-#ifdef CONFIG_DISCONTIGMEM
- node_set_online(1);
-#endif
min_high_pfn = PFN_DOWN(high_mem_start);
max_high_pfn = PFN_DOWN(high_mem_start + high_mem_sz);