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WSL2-Linux-Kernel
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MIPS: Loongson64: Clean up numa.c 

(1) Replace nid_to_addroffset() with nid_to_addrbase() and then remove the
related useless code.

(2) Since end_pfn = start_pfn + node_psize, use "node_psize" instead of
"end_pfn - start_pfn" to avoid the redundant calculation.

(3) After commit 6fbde6b492 ("MIPS: Loongson64: Move files to the
top-level directory"), CONFIG_ZONE_DMA32 is always set for Loongson64
due to MACH_LOONGSON64 selects ZONE_DMA32, so no need to use ifdef any
more, just remove it.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Tiezhu Yang 2020-10-11 07:47:52 +08:00 коммит произвёл Thomas Bogendoerfer
Родитель 1062fc45d1
Коммит 73826d604b
2 изменённых файлов: 4 добавлений и 31 удалений
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6
arch/mips/include/asm/mach-loongson64/mmzone.h
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@ -11,13 +11,9 @@
#include <boot_param.h>
#define NODE_ADDRSPACE_SHIFT 44
#define NODE0_ADDRSPACE_OFFSET 0x000000000000UL
#define NODE1_ADDRSPACE_OFFSET 0x100000000000UL
#define NODE2_ADDRSPACE_OFFSET 0x200000000000UL
#define NODE3_ADDRSPACE_OFFSET 0x300000000000UL
#define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
#define nid_to_addrbase(nid) ((nid) << NODE_ADDRSPACE_SHIFT)
#define nid_to_addrbase(nid) ((unsigned long)(nid) << NODE_ADDRSPACE_SHIFT)
extern struct pglist_data *__node_data[];

29
arch/mips/loongson64/numa.c
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@ -98,27 +98,6 @@ static void __init init_topology_matrix(void)
}
}
static unsigned long nid_to_addroffset(unsigned int nid)
{
unsigned long result;
switch (nid) {
case 0:
default:
result = NODE0_ADDRSPACE_OFFSET;
break;
case 1:
result = NODE1_ADDRSPACE_OFFSET;
break;
case 2:
result = NODE2_ADDRSPACE_OFFSET;
break;
case 3:
result = NODE3_ADDRSPACE_OFFSET;
break;
}
return result;
}
static void __init szmem(unsigned int node)
{
u32 i, mem_type;
@ -146,7 +125,7 @@ static void __init szmem(unsigned int node)
pr_info(" start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
start_pfn, end_pfn, num_physpages);
memblock_add_node(PFN_PHYS(start_pfn),
PFN_PHYS(end_pfn - start_pfn), node);
PFN_PHYS(node_psize), node);
break;
case SYSTEM_RAM_HIGH:
start_pfn = ((node_id << 44) + mem_start) >> PAGE_SHIFT;
@ -158,7 +137,7 @@ static void __init szmem(unsigned int node)
pr_info(" start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
start_pfn, end_pfn, num_physpages);
memblock_add_node(PFN_PHYS(start_pfn),
PFN_PHYS(end_pfn - start_pfn), node);
PFN_PHYS(node_psize), node);
break;
case SYSTEM_RAM_RESERVED:
pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx MB\n",
@ -175,7 +154,7 @@ static void __init node_mem_init(unsigned int node)
unsigned long node_addrspace_offset;
unsigned long start_pfn, end_pfn;
node_addrspace_offset = nid_to_addroffset(node);
node_addrspace_offset = nid_to_addrbase(node);
pr_info("Node%d's addrspace_offset is 0x%lx\n",
node, node_addrspace_offset);
@ -242,9 +221,7 @@ void __init paging_init(void)
unsigned long zones_size[MAX_NR_ZONES] = {0, };
pagetable_init();
#ifdef CONFIG_ZONE_DMA32
zones_size[ZONE_DMA32] = MAX_DMA32_PFN;
#endif
zones_size[ZONE_NORMAL] = max_low_pfn;
free_area_init(zones_size);
}