Messages in this thread | | | Subject | Re: [PATCH 2/3] MIPS: Loongson64: Clean up numa.c | From | Jiaxun Yang <> | Date | Sat, 10 Oct 2020 16:06:04 +0800 |
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在 2020/10/9 下午6:57, Tiezhu Yang 写道: > (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 6fbde6b492df ("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>
> --- > arch/mips/include/asm/mach-loongson64/mmzone.h | 6 +----- > arch/mips/loongson64/numa.c | 29 +++----------------------- > 2 files changed, 4 insertions(+), 31 deletions(-) > > diff --git a/arch/mips/include/asm/mach-loongson64/mmzone.h b/arch/mips/include/asm/mach-loongson64/mmzone.h > index 3a25dbd..c3f0f7a 100644 > --- a/arch/mips/include/asm/mach-loongson64/mmzone.h > +++ b/arch/mips/include/asm/mach-loongson64/mmzone.h > @@ -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[]; > > diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c > index ea8bb1b..cf9459f 100644 > --- a/arch/mips/loongson64/numa.c > +++ b/arch/mips/loongson64/numa.c > @@ -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); > }
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