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Diffstat (limited to 'arch/m32r/mm/discontig.c')
| -rw-r--r-- | arch/m32r/mm/discontig.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c deleted file mode 100644 index eb8e7966dcaf..000000000000 --- a/arch/m32r/mm/discontig.c +++ /dev/null @@ -1,163 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/m32r/mm/discontig.c - * - * Discontig memory support - * - * Copyright (c) 2003 Hitoshi Yamamoto - */ - -#include <linux/mm.h> -#include <linux/bootmem.h> -#include <linux/mmzone.h> -#include <linux/initrd.h> -#include <linux/nodemask.h> -#include <linux/module.h> -#include <linux/pfn.h> - -#include <asm/setup.h> - -extern char _end[]; - -struct pglist_data *node_data[MAX_NUMNODES]; -EXPORT_SYMBOL(node_data); - -pg_data_t m32r_node_data[MAX_NUMNODES]; - -/* Memory profile */ -typedef struct { - unsigned long start_pfn; - unsigned long pages; - unsigned long holes; - unsigned long free_pfn; -} mem_prof_t; -static mem_prof_t mem_prof[MAX_NUMNODES]; - -extern unsigned long memory_start; -extern unsigned long memory_end; - -static void __init mem_prof_init(void) -{ - unsigned long start_pfn, holes, free_pfn; - const unsigned long zone_alignment = 1UL << (MAX_ORDER - 1); - unsigned long ul; - mem_prof_t *mp; - - /* Node#0 SDRAM */ - mp = &mem_prof[0]; - mp->start_pfn = PFN_UP(CONFIG_MEMORY_START); - mp->pages = PFN_DOWN(memory_end - memory_start); - mp->holes = 0; - mp->free_pfn = PFN_UP(__pa(_end)); - - /* Node#1 internal SRAM */ - mp = &mem_prof[1]; - start_pfn = free_pfn = PFN_UP(CONFIG_IRAM_START); - holes = 0; - if (start_pfn & (zone_alignment - 1)) { - ul = zone_alignment; - while (start_pfn >= ul) - ul += zone_alignment; - - start_pfn = ul - zone_alignment; - holes = free_pfn - start_pfn; - } - - mp->start_pfn = start_pfn; - mp->pages = PFN_DOWN(CONFIG_IRAM_SIZE) + holes; - mp->holes = holes; - mp->free_pfn = PFN_UP(CONFIG_IRAM_START); -} - -unsigned long __init setup_memory(void) -{ - unsigned long bootmap_size; - unsigned long min_pfn; - int nid; - mem_prof_t *mp; - - max_low_pfn = 0; - min_low_pfn = -1; - - mem_prof_init(); - - for_each_online_node(nid) { - mp = &mem_prof[nid]; - NODE_DATA(nid)=(pg_data_t *)&m32r_node_data[nid]; - NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; - min_pfn = mp->start_pfn; - max_pfn = mp->start_pfn + mp->pages; - bootmap_size = init_bootmem_node(NODE_DATA(nid), mp->free_pfn, - mp->start_pfn, max_pfn); - - free_bootmem_node(NODE_DATA(nid), PFN_PHYS(mp->start_pfn), - PFN_PHYS(mp->pages)); - - reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(mp->start_pfn), - PFN_PHYS(mp->free_pfn - mp->start_pfn) + bootmap_size, - BOOTMEM_DEFAULT); - - if (max_low_pfn < max_pfn) - max_low_pfn = max_pfn; - - if (min_low_pfn > min_pfn) - min_low_pfn = min_pfn; - } - -#ifdef CONFIG_BLK_DEV_INITRD - if (LOADER_TYPE && INITRD_START) { - if (INITRD_START + INITRD_SIZE <= PFN_PHYS(max_low_pfn)) { - reserve_bootmem_node(NODE_DATA(0), INITRD_START, - INITRD_SIZE, BOOTMEM_DEFAULT); - initrd_start = INITRD_START + PAGE_OFFSET; - initrd_end = initrd_start + INITRD_SIZE; - printk("initrd:start[%08lx],size[%08lx]\n", - initrd_start, INITRD_SIZE); - } else { - printk("initrd extends beyond end of memory " - "(0x%08lx > 0x%08llx)\ndisabling initrd\n", - INITRD_START + INITRD_SIZE, - (unsigned long long)PFN_PHYS(max_low_pfn)); - - initrd_start = 0; - } - } -#endif /* CONFIG_BLK_DEV_INITRD */ - - return max_low_pfn; -} - -#define START_PFN(nid) (NODE_DATA(nid)->bdata->node_min_pfn) -#define MAX_LOW_PFN(nid) (NODE_DATA(nid)->bdata->node_low_pfn) - -void __init zone_sizes_init(void) -{ - unsigned long zones_size[MAX_NR_ZONES], zholes_size[MAX_NR_ZONES]; - unsigned long low, start_pfn; - int nid, i; - mem_prof_t *mp; - - for_each_online_node(nid) { - mp = &mem_prof[nid]; - for (i = 0 ; i < MAX_NR_ZONES ; i++) { - zones_size[i] = 0; - zholes_size[i] = 0; - } - start_pfn = START_PFN(nid); - low = MAX_LOW_PFN(nid); - zones_size[ZONE_DMA] = low - start_pfn; - zholes_size[ZONE_DMA] = mp->holes; - - node_set_state(nid, N_NORMAL_MEMORY); - free_area_init_node(nid, zones_size, start_pfn, zholes_size); - } - - /* - * For test - * Use all area of internal RAM. - * see __alloc_pages() - */ - NODE_DATA(1)->node_zones->watermark[WMARK_MIN] = 0; - NODE_DATA(1)->node_zones->watermark[WMARK_LOW] = 0; - NODE_DATA(1)->node_zones->watermark[WMARK_HIGH] = 0; -} |