forked from Minki/linux
x86: Call early_res_to_bootmem one time
Simplify setup_node_mem: don't use bootmem from other node, instead just find_e820_area in early_node_mem. This keeps the boundary between early_res and boot mem more clear, and lets us only call early_res_to_bootmem() one time instead of for all nodes. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-12-git-send-email-yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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79c6016958
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1842f90cc9
@ -967,6 +967,7 @@ void __init setup_arch(char **cmdline_p)
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#endif
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initmem_init(0, max_pfn, acpi, k8);
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early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);
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#ifdef CONFIG_X86_64
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/*
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@ -764,7 +764,6 @@ static unsigned long __init setup_node_bootmem(int nodeid,
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printk(KERN_INFO " node %d bootmap %08lx - %08lx\n",
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nodeid, bootmap, bootmap + bootmap_size);
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free_bootmem_with_active_regions(nodeid, end_pfn);
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early_res_to_bootmem(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
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return bootmap + bootmap_size;
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}
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@ -579,13 +579,12 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
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PAGE_SIZE);
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if (bootmap == -1L)
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panic("Cannot find bootmem map of size %ld\n", bootmap_size);
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reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
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/* don't touch min_low_pfn */
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bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
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0, end_pfn);
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e820_register_active_regions(0, start_pfn, end_pfn);
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free_bootmem_with_active_regions(0, end_pfn);
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early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
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reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
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}
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#endif
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@ -164,18 +164,21 @@ static void * __init early_node_mem(int nodeid, unsigned long start,
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unsigned long align)
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{
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unsigned long mem = find_e820_area(start, end, size, align);
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void *ptr;
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if (mem != -1L)
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return __va(mem);
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ptr = __alloc_bootmem_nopanic(size, align, __pa(MAX_DMA_ADDRESS));
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if (ptr == NULL) {
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printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
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start = __pa(MAX_DMA_ADDRESS);
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end = max_low_pfn_mapped << PAGE_SHIFT;
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mem = find_e820_area(start, end, size, align);
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if (mem != -1L)
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return __va(mem);
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printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
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size, nodeid);
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return NULL;
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}
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return ptr;
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return NULL;
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}
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/* Initialize bootmem allocator for a node */
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@ -211,8 +214,12 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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if (node_data[nodeid] == NULL)
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return;
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nodedata_phys = __pa(node_data[nodeid]);
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reserve_early(nodedata_phys, nodedata_phys + pgdat_size, "NODE_DATA");
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printk(KERN_INFO " NODE_DATA [%016lx - %016lx]\n", nodedata_phys,
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nodedata_phys + pgdat_size - 1);
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nid = phys_to_nid(nodedata_phys);
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if (nid != nodeid)
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printk(KERN_INFO " NODE_DATA(%d) on node %d\n", nodeid, nid);
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memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
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NODE_DATA(nodeid)->bdata = &bootmem_node_data[nodeid];
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@ -227,11 +234,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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* of alloc_bootmem, that could clash with reserved range
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*/
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bootmap_pages = bootmem_bootmap_pages(last_pfn - start_pfn);
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nid = phys_to_nid(nodedata_phys);
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if (nid == nodeid)
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bootmap_start = roundup(nodedata_phys + pgdat_size, PAGE_SIZE);
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else
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bootmap_start = roundup(start, PAGE_SIZE);
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bootmap_start = roundup(nodedata_phys + pgdat_size, PAGE_SIZE);
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/*
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* SMP_CACHE_BYTES could be enough, but init_bootmem_node like
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* to use that to align to PAGE_SIZE
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@ -239,18 +242,13 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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bootmap = early_node_mem(nodeid, bootmap_start, end,
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bootmap_pages<<PAGE_SHIFT, PAGE_SIZE);
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if (bootmap == NULL) {
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if (nodedata_phys < start || nodedata_phys >= end) {
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/*
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* only need to free it if it is from other node
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* bootmem
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*/
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if (nid != nodeid)
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free_bootmem(nodedata_phys, pgdat_size);
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}
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free_early(nodedata_phys, nodedata_phys + pgdat_size);
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node_data[nodeid] = NULL;
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return;
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}
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bootmap_start = __pa(bootmap);
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reserve_early(bootmap_start, bootmap_start+(bootmap_pages<<PAGE_SHIFT),
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"BOOTMAP");
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bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
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bootmap_start >> PAGE_SHIFT,
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@ -259,31 +257,11 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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printk(KERN_INFO " bootmap [%016lx - %016lx] pages %lx\n",
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bootmap_start, bootmap_start + bootmap_size - 1,
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bootmap_pages);
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free_bootmem_with_active_regions(nodeid, end);
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/*
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* convert early reserve to bootmem reserve earlier
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* otherwise early_node_mem could use early reserved mem
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* on previous node
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*/
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early_res_to_bootmem(start, end);
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/*
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* in some case early_node_mem could use alloc_bootmem
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* to get range on other node, don't reserve that again
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*/
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if (nid != nodeid)
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printk(KERN_INFO " NODE_DATA(%d) on node %d\n", nodeid, nid);
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else
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reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys,
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pgdat_size, BOOTMEM_DEFAULT);
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nid = phys_to_nid(bootmap_start);
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if (nid != nodeid)
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printk(KERN_INFO " bootmap(%d) on node %d\n", nodeid, nid);
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else
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reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start,
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bootmap_pages<<PAGE_SHIFT, BOOTMEM_DEFAULT);
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free_bootmem_with_active_regions(nodeid, end);
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node_set_online(nodeid);
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}
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