x86: Make 64 bit use early_res instead of bootmem before slab
Finally we can use early_res to replace bootmem for x86_64 now. Still can use CONFIG_NO_BOOTMEM to enable it or not. -v2: fix 32bit compiling about MAX_DMA32_PFN -v3: folded bug fix from LKML message below Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B747239.4070907@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Yinghai Lu
H. Peter Anvin
Родитель
c252a5bb1f
Коммит
08677214e3
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@ -568,6 +568,19 @@ config PARAVIRT_DEBUG
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Enable to debug paravirt_ops internals. Specifically, BUG if
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a paravirt_op is missing when it is called.
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config NO_BOOTMEM
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default y
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bool "Disable Bootmem code"
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depends on X86_64
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---help---
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Use early_res directly instead of bootmem before slab is ready.
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- allocator (buddy) [generic]
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- early allocator (bootmem) [generic]
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- very early allocator (reserve_early*()) [x86]
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- very very early allocator (early brk model) [x86]
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So reduce one layer between early allocator to final allocator
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config MEMTEST
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bool "Memtest"
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---help---
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@ -117,6 +117,12 @@ extern void free_early(u64 start, u64 end);
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extern void early_res_to_bootmem(u64 start, u64 end);
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extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
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void reserve_early_without_check(u64 start, u64 end, char *name);
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u64 find_early_area(u64 ei_start, u64 ei_last, u64 start, u64 end,
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u64 size, u64 align);
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#include <linux/range.h>
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int get_free_all_memory_range(struct range **rangep, int nodeid);
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extern unsigned long e820_end_of_ram_pfn(void);
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extern unsigned long e820_end_of_low_ram_pfn(void);
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extern int e820_find_active_region(const struct e820entry *ei,
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@ -977,6 +977,25 @@ void __init reserve_early(u64 start, u64 end, char *name)
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__reserve_early(start, end, name, 0);
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}
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void __init reserve_early_without_check(u64 start, u64 end, char *name)
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{
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struct early_res *r;
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if (start >= end)
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return;
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__check_and_double_early_res(end);
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r = &early_res[early_res_count];
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r->start = start;
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r->end = end;
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r->overlap_ok = 0;
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if (name)
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strncpy(r->name, name, sizeof(r->name) - 1);
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early_res_count++;
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}
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void __init free_early(u64 start, u64 end)
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{
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struct early_res *r;
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@ -991,6 +1010,94 @@ void __init free_early(u64 start, u64 end)
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drop_range(i);
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}
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#ifdef CONFIG_NO_BOOTMEM
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static void __init subtract_early_res(struct range *range, int az)
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{
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int i, count;
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u64 final_start, final_end;
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int idx = 0;
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count = 0;
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for (i = 0; i < max_early_res && early_res[i].end; i++)
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count++;
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/* need to skip first one ?*/
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if (early_res != early_res_x)
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idx = 1;
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#if 1
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printk(KERN_INFO "Subtract (%d early reservations)\n", count);
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#endif
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for (i = idx; i < count; i++) {
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struct early_res *r = &early_res[i];
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#if 0
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printk(KERN_INFO " #%d [%010llx - %010llx] %15s", i,
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r->start, r->end, r->name);
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#endif
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final_start = PFN_DOWN(r->start);
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final_end = PFN_UP(r->end);
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if (final_start >= final_end) {
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#if 0
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printk(KERN_CONT "\n");
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#endif
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continue;
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}
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#if 0
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printk(KERN_CONT " subtract pfn [%010llx - %010llx]\n",
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final_start, final_end);
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#endif
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subtract_range(range, az, final_start, final_end);
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}
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}
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int __init get_free_all_memory_range(struct range **rangep, int nodeid)
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{
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int i, count;
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u64 start = 0, end;
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u64 size;
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u64 mem;
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struct range *range;
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int nr_range;
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count = 0;
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for (i = 0; i < max_early_res && early_res[i].end; i++)
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count++;
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count *= 2;
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size = sizeof(struct range) * count;
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#ifdef MAX_DMA32_PFN
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if (max_pfn_mapped > MAX_DMA32_PFN)
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start = MAX_DMA32_PFN << PAGE_SHIFT;
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#endif
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end = max_pfn_mapped << PAGE_SHIFT;
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mem = find_e820_area(start, end, size, sizeof(struct range));
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if (mem == -1ULL)
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panic("can not find more space for range free");
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range = __va(mem);
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/* use early_node_map[] and early_res to get range array at first */
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memset(range, 0, size);
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nr_range = 0;
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/* need to go over early_node_map to find out good range for node */
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nr_range = add_from_early_node_map(range, count, nr_range, nodeid);
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subtract_early_res(range, count);
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nr_range = clean_sort_range(range, count);
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/* need to clear it ? */
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if (nodeid == MAX_NUMNODES) {
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memset(&early_res[0], 0,
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sizeof(struct early_res) * max_early_res);
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early_res = NULL;
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max_early_res = 0;
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}
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*rangep = range;
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return nr_range;
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}
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#else
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void __init early_res_to_bootmem(u64 start, u64 end)
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{
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int i, count;
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@ -1028,6 +1135,7 @@ void __init early_res_to_bootmem(u64 start, u64 end)
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max_early_res = 0;
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early_res_count = 0;
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}
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#endif
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/* Check for already reserved areas */
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static inline int __init bad_addr(u64 *addrp, u64 size, u64 align)
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@ -1081,6 +1189,35 @@ again:
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return changed;
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}
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/*
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* Find a free area with specified alignment in a specific range.
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* only with the area.between start to end is active range from early_node_map
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* so they are good as RAM
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*/
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u64 __init find_early_area(u64 ei_start, u64 ei_last, u64 start, u64 end,
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u64 size, u64 align)
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{
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u64 addr, last;
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addr = round_up(ei_start, align);
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if (addr < start)
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addr = round_up(start, align);
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if (addr >= ei_last)
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goto out;
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while (bad_addr(&addr, size, align) && addr+size <= ei_last)
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;
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last = addr + size;
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if (last > ei_last)
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goto out;
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if (last > end)
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goto out;
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return addr;
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out:
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return -1ULL;
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}
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/*
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* Find a free area with specified alignment in a specific range.
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*/
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@ -1090,24 +1227,20 @@ u64 __init find_e820_area(u64 start, u64 end, u64 size, u64 align)
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for (i = 0; i < e820.nr_map; i++) {
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struct e820entry *ei = &e820.map[i];
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u64 addr, last;
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u64 ei_last;
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u64 addr;
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u64 ei_start, ei_last;
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if (ei->type != E820_RAM)
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continue;
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addr = round_up(ei->addr, align);
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ei_last = ei->addr + ei->size;
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if (addr < start)
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addr = round_up(start, align);
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if (addr >= ei_last)
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continue;
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while (bad_addr(&addr, size, align) && addr+size <= ei_last)
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;
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last = addr + size;
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if (last > ei_last)
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continue;
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if (last > end)
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ei_start = ei->addr;
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addr = find_early_area(ei_start, ei_last, start, end,
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size, align);
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if (addr == -1ULL)
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continue;
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return addr;
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}
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return -1ULL;
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@ -967,7 +967,9 @@ 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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#ifndef CONFIG_NO_BOOTMEM
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early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);
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#endif
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dma32_reserve_bootmem();
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@ -572,6 +572,7 @@ kernel_physical_mapping_init(unsigned long start,
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void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
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int acpi, int k8)
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{
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#ifndef CONFIG_NO_BOOTMEM
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unsigned long bootmap_size, bootmap;
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bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
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@ -585,6 +586,9 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
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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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#else
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e820_register_active_regions(0, start_pfn, end_pfn);
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#endif
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}
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#endif
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@ -198,11 +198,13 @@ static void * __init early_node_mem(int nodeid, unsigned long start,
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void __init
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setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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{
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unsigned long start_pfn, last_pfn, bootmap_pages, bootmap_size;
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unsigned long start_pfn, last_pfn, nodedata_phys;
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const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
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unsigned long bootmap_start, nodedata_phys;
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void *bootmap;
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int nid;
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#ifndef CONFIG_NO_BOOTMEM
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unsigned long bootmap_start, bootmap_pages, bootmap_size;
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void *bootmap;
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#endif
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if (!end)
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return;
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@ -216,7 +218,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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start = roundup(start, ZONE_ALIGN);
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printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,
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printk(KERN_INFO "Initmem setup node %d %016lx-%016lx\n", nodeid,
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start, end);
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start_pfn = start >> PAGE_SHIFT;
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@ -235,10 +237,13 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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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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NODE_DATA(nodeid)->node_id = nodeid;
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NODE_DATA(nodeid)->node_start_pfn = start_pfn;
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NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn;
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#ifndef CONFIG_NO_BOOTMEM
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NODE_DATA(nodeid)->bdata = &bootmem_node_data[nodeid];
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/*
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* Find a place for the bootmem map
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* nodedata_phys could be on other nodes by alloc_bootmem,
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@ -275,6 +280,7 @@ setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
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printk(KERN_INFO " bootmap(%d) on node %d\n", nodeid, nid);
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free_bootmem_with_active_regions(nodeid, end);
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#endif
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node_set_online(nodeid);
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}
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@ -733,6 +739,10 @@ unsigned long __init numa_free_all_bootmem(void)
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for_each_online_node(i)
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pages += free_all_bootmem_node(NODE_DATA(i));
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#ifdef CONFIG_NO_BOOTMEM
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pages += free_all_memory_core_early(MAX_NUMNODES);
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#endif
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return pages;
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}
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@ -23,6 +23,7 @@ extern unsigned long max_pfn;
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extern unsigned long saved_max_pfn;
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#endif
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#ifndef CONFIG_NO_BOOTMEM
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/*
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* node_bootmem_map is a map pointer - the bits represent all physical
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* memory pages (including holes) on the node.
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@ -37,6 +38,7 @@ typedef struct bootmem_data {
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} bootmem_data_t;
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extern bootmem_data_t bootmem_node_data[];
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#endif
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extern unsigned long bootmem_bootmap_pages(unsigned long);
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@ -46,6 +48,7 @@ extern unsigned long init_bootmem_node(pg_data_t *pgdat,
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unsigned long endpfn);
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extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
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unsigned long free_all_memory_core_early(int nodeid);
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extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
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extern unsigned long free_all_bootmem(void);
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@ -84,6 +87,10 @@ extern void *__alloc_bootmem_node(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal);
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void *__alloc_bootmem_node_high(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal);
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extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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@ -12,6 +12,7 @@
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#include <linux/prio_tree.h>
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#include <linux/debug_locks.h>
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#include <linux/mm_types.h>
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#include <linux/range.h>
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struct mempolicy;
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struct anon_vma;
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@ -1049,6 +1050,10 @@ extern void get_pfn_range_for_nid(unsigned int nid,
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extern unsigned long find_min_pfn_with_active_regions(void);
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extern void free_bootmem_with_active_regions(int nid,
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unsigned long max_low_pfn);
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int add_from_early_node_map(struct range *range, int az,
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int nr_range, int nid);
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void *__alloc_memory_core_early(int nodeid, u64 size, u64 align,
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u64 goal, u64 limit);
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typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
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extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
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extern void sparse_memory_present_with_active_regions(int nid);
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@ -620,7 +620,9 @@ typedef struct pglist_data {
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struct page_cgroup *node_page_cgroup;
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#endif
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#endif
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#ifndef CONFIG_NO_BOOTMEM
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struct bootmem_data *bdata;
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#endif
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#ifdef CONFIG_MEMORY_HOTPLUG
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/*
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* Must be held any time you expect node_start_pfn, node_present_pages
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195
mm/bootmem.c
195
mm/bootmem.c
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@ -13,6 +13,7 @@
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#include <linux/bootmem.h>
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#include <linux/module.h>
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#include <linux/kmemleak.h>
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#include <linux/range.h>
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#include <asm/bug.h>
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#include <asm/io.h>
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@ -32,6 +33,7 @@ unsigned long max_pfn;
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unsigned long saved_max_pfn;
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#endif
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#ifndef CONFIG_NO_BOOTMEM
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bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;
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static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list);
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@ -142,7 +144,7 @@ unsigned long __init init_bootmem(unsigned long start, unsigned long pages)
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min_low_pfn = start;
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return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages);
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}
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#endif
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/*
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* free_bootmem_late - free bootmem pages directly to page allocator
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* @addr: starting address of the range
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@ -167,6 +169,60 @@ void __init free_bootmem_late(unsigned long addr, unsigned long size)
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}
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}
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#ifdef CONFIG_NO_BOOTMEM
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static void __init __free_pages_memory(unsigned long start, unsigned long end)
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{
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int i;
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unsigned long start_aligned, end_aligned;
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int order = ilog2(BITS_PER_LONG);
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start_aligned = (start + (BITS_PER_LONG - 1)) & ~(BITS_PER_LONG - 1);
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end_aligned = end & ~(BITS_PER_LONG - 1);
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if (end_aligned <= start_aligned) {
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#if 1
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printk(KERN_DEBUG " %lx - %lx\n", start, end);
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#endif
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for (i = start; i < end; i++)
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__free_pages_bootmem(pfn_to_page(i), 0);
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return;
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}
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#if 1
|
||||
printk(KERN_DEBUG " %lx %lx - %lx %lx\n",
|
||||
start, start_aligned, end_aligned, end);
|
||||
#endif
|
||||
for (i = start; i < start_aligned; i++)
|
||||
__free_pages_bootmem(pfn_to_page(i), 0);
|
||||
|
||||
for (i = start_aligned; i < end_aligned; i += BITS_PER_LONG)
|
||||
__free_pages_bootmem(pfn_to_page(i), order);
|
||||
|
||||
for (i = end_aligned; i < end; i++)
|
||||
__free_pages_bootmem(pfn_to_page(i), 0);
|
||||
}
|
||||
|
||||
unsigned long __init free_all_memory_core_early(int nodeid)
|
||||
{
|
||||
int i;
|
||||
u64 start, end;
|
||||
unsigned long count = 0;
|
||||
struct range *range = NULL;
|
||||
int nr_range;
|
||||
|
||||
nr_range = get_free_all_memory_range(&range, nodeid);
|
||||
|
||||
for (i = 0; i < nr_range; i++) {
|
||||
start = range[i].start;
|
||||
end = range[i].end;
|
||||
count += end - start;
|
||||
__free_pages_memory(start, end);
|
||||
}
|
||||
|
||||
return count;
|
||||
}
|
||||
#else
|
||||
static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
|
||||
{
|
||||
int aligned;
|
||||
|
|
@ -227,6 +283,7 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
|
|||
|
||||
return count;
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* free_all_bootmem_node - release a node's free pages to the buddy allocator
|
||||
|
|
@ -237,7 +294,12 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
|
|||
unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
|
||||
{
|
||||
register_page_bootmem_info_node(pgdat);
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
/* free_all_memory_core_early(MAX_NUMNODES) will be called later */
|
||||
return 0;
|
||||
#else
|
||||
return free_all_bootmem_core(pgdat->bdata);
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -247,9 +309,14 @@ unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
|
|||
*/
|
||||
unsigned long __init free_all_bootmem(void)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
return free_all_memory_core_early(NODE_DATA(0)->node_id);
|
||||
#else
|
||||
return free_all_bootmem_core(NODE_DATA(0)->bdata);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef CONFIG_NO_BOOTMEM
|
||||
static void __init __free(bootmem_data_t *bdata,
|
||||
unsigned long sidx, unsigned long eidx)
|
||||
{
|
||||
|
|
@ -344,6 +411,7 @@ static int __init mark_bootmem(unsigned long start, unsigned long end,
|
|||
}
|
||||
BUG();
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* free_bootmem_node - mark a page range as usable
|
||||
|
|
@ -358,6 +426,12 @@ static int __init mark_bootmem(unsigned long start, unsigned long end,
|
|||
void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
|
||||
unsigned long size)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
free_early(physaddr, physaddr + size);
|
||||
#if 0
|
||||
printk(KERN_DEBUG "free %lx %lx\n", physaddr, size);
|
||||
#endif
|
||||
#else
|
||||
unsigned long start, end;
|
||||
|
||||
kmemleak_free_part(__va(physaddr), size);
|
||||
|
|
@ -366,6 +440,7 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
|
|||
end = PFN_DOWN(physaddr + size);
|
||||
|
||||
mark_bootmem_node(pgdat->bdata, start, end, 0, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -379,6 +454,12 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
|
|||
*/
|
||||
void __init free_bootmem(unsigned long addr, unsigned long size)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
free_early(addr, addr + size);
|
||||
#if 0
|
||||
printk(KERN_DEBUG "free %lx %lx\n", addr, size);
|
||||
#endif
|
||||
#else
|
||||
unsigned long start, end;
|
||||
|
||||
kmemleak_free_part(__va(addr), size);
|
||||
|
|
@ -387,6 +468,7 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
|
|||
end = PFN_DOWN(addr + size);
|
||||
|
||||
mark_bootmem(start, end, 0, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -403,12 +485,17 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
|
|||
int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
|
||||
unsigned long size, int flags)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
panic("no bootmem");
|
||||
return 0;
|
||||
#else
|
||||
unsigned long start, end;
|
||||
|
||||
start = PFN_DOWN(physaddr);
|
||||
end = PFN_UP(physaddr + size);
|
||||
|
||||
return mark_bootmem_node(pgdat->bdata, start, end, 1, flags);
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -424,14 +511,20 @@ int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
|
|||
int __init reserve_bootmem(unsigned long addr, unsigned long size,
|
||||
int flags)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
panic("no bootmem");
|
||||
return 0;
|
||||
#else
|
||||
unsigned long start, end;
|
||||
|
||||
start = PFN_DOWN(addr);
|
||||
end = PFN_UP(addr + size);
|
||||
|
||||
return mark_bootmem(start, end, 1, flags);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef CONFIG_NO_BOOTMEM
|
||||
static unsigned long __init align_idx(struct bootmem_data *bdata,
|
||||
unsigned long idx, unsigned long step)
|
||||
{
|
||||
|
|
@ -582,12 +675,33 @@ static void * __init alloc_arch_preferred_bootmem(bootmem_data_t *bdata,
|
|||
#endif
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void * __init ___alloc_bootmem_nopanic(unsigned long size,
|
||||
unsigned long align,
|
||||
unsigned long goal,
|
||||
unsigned long limit)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
void *ptr;
|
||||
|
||||
if (WARN_ON_ONCE(slab_is_available()))
|
||||
return kzalloc(size, GFP_NOWAIT);
|
||||
|
||||
restart:
|
||||
|
||||
ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, goal, limit);
|
||||
|
||||
if (ptr)
|
||||
return ptr;
|
||||
|
||||
if (goal != 0) {
|
||||
goal = 0;
|
||||
goto restart;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
#else
|
||||
bootmem_data_t *bdata;
|
||||
void *region;
|
||||
|
||||
|
|
@ -613,6 +727,7 @@ restart:
|
|||
}
|
||||
|
||||
return NULL;
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -631,7 +746,13 @@ restart:
|
|||
void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
|
||||
unsigned long goal)
|
||||
{
|
||||
return ___alloc_bootmem_nopanic(size, align, goal, 0);
|
||||
unsigned long limit = 0;
|
||||
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
limit = -1UL;
|
||||
#endif
|
||||
|
||||
return ___alloc_bootmem_nopanic(size, align, goal, limit);
|
||||
}
|
||||
|
||||
static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
|
||||
|
|
@ -665,9 +786,16 @@ static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
|
|||
void * __init __alloc_bootmem(unsigned long size, unsigned long align,
|
||||
unsigned long goal)
|
||||
{
|
||||
return ___alloc_bootmem(size, align, goal, 0);
|
||||
unsigned long limit = 0;
|
||||
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
limit = -1UL;
|
||||
#endif
|
||||
|
||||
return ___alloc_bootmem(size, align, goal, limit);
|
||||
}
|
||||
|
||||
#ifndef CONFIG_NO_BOOTMEM
|
||||
static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata,
|
||||
unsigned long size, unsigned long align,
|
||||
unsigned long goal, unsigned long limit)
|
||||
|
|
@ -684,6 +812,7 @@ static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata,
|
|||
|
||||
return ___alloc_bootmem(size, align, goal, limit);
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* __alloc_bootmem_node - allocate boot memory from a specific node
|
||||
|
|
@ -706,7 +835,46 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
|
|||
if (WARN_ON_ONCE(slab_is_available()))
|
||||
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
|
||||
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
return __alloc_memory_core_early(pgdat->node_id, size, align,
|
||||
goal, -1ULL);
|
||||
#else
|
||||
return ___alloc_bootmem_node(pgdat->bdata, size, align, goal, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
|
||||
unsigned long align, unsigned long goal)
|
||||
{
|
||||
#ifdef MAX_DMA32_PFN
|
||||
unsigned long end_pfn;
|
||||
|
||||
if (WARN_ON_ONCE(slab_is_available()))
|
||||
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
|
||||
|
||||
/* update goal according ...MAX_DMA32_PFN */
|
||||
end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages;
|
||||
|
||||
if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) &&
|
||||
(goal >> PAGE_SHIFT) < MAX_DMA32_PFN) {
|
||||
void *ptr;
|
||||
unsigned long new_goal;
|
||||
|
||||
new_goal = MAX_DMA32_PFN << PAGE_SHIFT;
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
|
||||
new_goal, -1ULL);
|
||||
#else
|
||||
ptr = alloc_bootmem_core(pgdat->bdata, size, align,
|
||||
new_goal, 0);
|
||||
#endif
|
||||
if (ptr)
|
||||
return ptr;
|
||||
}
|
||||
#endif
|
||||
|
||||
return __alloc_bootmem_node(pgdat, size, align, goal);
|
||||
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SPARSEMEM
|
||||
|
|
@ -720,6 +888,16 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
|
|||
void * __init alloc_bootmem_section(unsigned long size,
|
||||
unsigned long section_nr)
|
||||
{
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
unsigned long pfn, goal, limit;
|
||||
|
||||
pfn = section_nr_to_pfn(section_nr);
|
||||
goal = pfn << PAGE_SHIFT;
|
||||
limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT;
|
||||
|
||||
return __alloc_memory_core_early(early_pfn_to_nid(pfn), size,
|
||||
SMP_CACHE_BYTES, goal, limit);
|
||||
#else
|
||||
bootmem_data_t *bdata;
|
||||
unsigned long pfn, goal, limit;
|
||||
|
||||
|
|
@ -729,6 +907,7 @@ void * __init alloc_bootmem_section(unsigned long size,
|
|||
bdata = &bootmem_node_data[early_pfn_to_nid(pfn)];
|
||||
|
||||
return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, limit);
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
@ -740,11 +919,16 @@ void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
|
|||
if (WARN_ON_ONCE(slab_is_available()))
|
||||
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
|
||||
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
|
||||
goal, -1ULL);
|
||||
#else
|
||||
ptr = alloc_arch_preferred_bootmem(pgdat->bdata, size, align, goal, 0);
|
||||
if (ptr)
|
||||
return ptr;
|
||||
|
||||
ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
|
||||
#endif
|
||||
if (ptr)
|
||||
return ptr;
|
||||
|
||||
|
|
@ -795,6 +979,11 @@ void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
|
|||
if (WARN_ON_ONCE(slab_is_available()))
|
||||
return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
|
||||
|
||||
#ifdef CONFIG_NO_BOOTMEM
|
||||
return __alloc_memory_core_early(pgdat->node_id, size, align,
|
||||
goal, ARCH_LOW_ADDRESS_LIMIT);
|
||||
#else
|
||||
return ___alloc_bootmem_node(pgdat->bdata, size, align,
|
||||
goal, ARCH_LOW_ADDRESS_LIMIT);
|
||||
#endif
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3435,6 +3435,59 @@ void __init free_bootmem_with_active_regions(int nid,
|
|||
}
|
||||
}
|
||||
|
||||
int __init add_from_early_node_map(struct range *range, int az,
|
||||
int nr_range, int nid)
|
||||
{
|
||||
int i;
|
||||
u64 start, end;
|
||||
|
||||
/* need to go over early_node_map to find out good range for node */
|
||||
for_each_active_range_index_in_nid(i, nid) {
|
||||
start = early_node_map[i].start_pfn;
|
||||
end = early_node_map[i].end_pfn;
|
||||
nr_range = add_range(range, az, nr_range, start, end);
|
||||
}
|
||||
return nr_range;
|
||||
}
|
||||
|
||||
void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
|
||||
u64 goal, u64 limit)
|
||||
{
|
||||
int i;
|
||||
void *ptr;
|
||||
|
||||
/* need to go over early_node_map to find out good range for node */
|
||||
for_each_active_range_index_in_nid(i, nid) {
|
||||
u64 addr;
|
||||
u64 ei_start, ei_last;
|
||||
|
||||
ei_last = early_node_map[i].end_pfn;
|
||||
ei_last <<= PAGE_SHIFT;
|
||||
ei_start = early_node_map[i].start_pfn;
|
||||
ei_start <<= PAGE_SHIFT;
|
||||
addr = find_early_area(ei_start, ei_last,
|
||||
goal, limit, size, align);
|
||||
|
||||
if (addr == -1ULL)
|
||||
continue;
|
||||
|
||||
#if 0
|
||||
printk(KERN_DEBUG "alloc (nid=%d %llx - %llx) (%llx - %llx) %llx %llx => %llx\n",
|
||||
nid,
|
||||
ei_start, ei_last, goal, limit, size,
|
||||
align, addr);
|
||||
#endif
|
||||
|
||||
ptr = phys_to_virt(addr);
|
||||
memset(ptr, 0, size);
|
||||
reserve_early_without_check(addr, addr + size, "BOOTMEM");
|
||||
return ptr;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
void __init work_with_active_regions(int nid, work_fn_t work_fn, void *data)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -4467,7 +4520,11 @@ void __init set_dma_reserve(unsigned long new_dma_reserve)
|
|||
}
|
||||
|
||||
#ifndef CONFIG_NEED_MULTIPLE_NODES
|
||||
struct pglist_data __refdata contig_page_data = { .bdata = &bootmem_node_data[0] };
|
||||
struct pglist_data __refdata contig_page_data = {
|
||||
#ifndef CONFIG_NO_BOOTMEM
|
||||
.bdata = &bootmem_node_data[0]
|
||||
#endif
|
||||
};
|
||||
EXPORT_SYMBOL(contig_page_data);
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -1929,7 +1929,10 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, ssize_t dyn_size,
|
|||
}
|
||||
/* copy and return the unused part */
|
||||
memcpy(ptr, __per_cpu_load, ai->static_size);
|
||||
#ifndef CONFIG_NO_BOOTMEM
|
||||
/* fix partial free ! */
|
||||
free_fn(ptr + size_sum, ai->unit_size - size_sum);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -40,7 +40,7 @@ static void * __init_refok __earlyonly_bootmem_alloc(int node,
|
|||
unsigned long align,
|
||||
unsigned long goal)
|
||||
{
|
||||
return __alloc_bootmem_node(NODE_DATA(node), size, align, goal);
|
||||
return __alloc_bootmem_node_high(NODE_DATA(node), size, align, goal);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче