Yinghai Lu cef625eef8 x86: Make early_node_mem get mem > 4 GB if possible ... So we could put pgdata for the node high, and later sparse vmmap will get the section nr that need. With this patch will make <4 GB ram not use a sparse vmmap. before this patch, will get, before swiotlb try get bootmem [ 0.000000] nid=1 start=0 end=2080000 aligned=1 [ 0.000000] free [10 - 96] [ 0.000000] free [b12 - 1000] [ 0.000000] free [359f - 38a3] [ 0.000000] free [38b5 - 3a00] [ 0.000000] free [41e01 - 42000] [ 0.000000] free [73dde - 73e00] [ 0.000000] free [73fdd - 74000] [ 0.000000] free [741dd - 74200] [ 0.000000] free [743dd - 74400] [ 0.000000] free [745dd - 74600] [ 0.000000] free [747dd - 74800] [ 0.000000] free [749dd - 74a00] [ 0.000000] free [74bdd - 74c00] [ 0.000000] free [74ddd - 74e00] [ 0.000000] free [74fdd - 75000] [ 0.000000] free [751dd - 75200] [ 0.000000] free [753dd - 75400] [ 0.000000] free [755dd - 75600] [ 0.000000] free [757dd - 75800] [ 0.000000] free [759dd - 75a00] [ 0.000000] free [75bdd - 7bf5f] [ 0.000000] free [7f730 - 7f750] [ 0.000000] free [100000 - 2080000] [ 0.000000] total free 1f87170 [ 93.301474] Placing 64MB software IO TLB between ffff880075bdd000 - ffff880079bdd000 [ 93.311814] software IO TLB at phys 0x75bdd000 - 0x79bdd000 with this patch will get: before swiotlb try get bootmem [ 0.000000] nid=1 start=0 end=2080000 aligned=1 [ 0.000000] free [a - 96] [ 0.000000] free [702 - 1000] [ 0.000000] free [359f - 3600] [ 0.000000] free [37de - 3800] [ 0.000000] free [39dd - 3a00] [ 0.000000] free [3bdd - 3c00] [ 0.000000] free [3ddd - 3e00] [ 0.000000] free [3fdd - 4000] [ 0.000000] free [41dd - 4200] [ 0.000000] free [43dd - 4400] [ 0.000000] free [45dd - 4600] [ 0.000000] free [47dd - 4800] [ 0.000000] free [49dd - 4a00] [ 0.000000] free [4bdd - 4c00] [ 0.000000] free [4ddd - 4e00] [ 0.000000] free [4fdd - 5000] [ 0.000000] free [51dd - 5200] [ 0.000000] free [53dd - 5400] [ 0.000000] free [55dd - 7bf5f] [ 0.000000] free [7f730 - 7f750] [ 0.000000] free [100428 - 100600] [ 0.000000] free [13ea01 - 13ec00] [ 0.000000] free [170800 - 2080000] [ 0.000000] total free 1f87170 [ 92.689485] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 92.699799] Placing 64MB software IO TLB between ffff8800055dd000 - ffff8800095dd000 [ 92.710916] software IO TLB at phys 0x55dd000 - 0x95dd000 so will get enough space below 4G, aka pfn 0x100000 Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-15-git-send-email-yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2010-02-10 17:47:18 -08:00
..
alpha	alpha: cpumask_of_node() should handle -1 as a node	2010-01-14 13:21:35 -05:00
arm	Merge master.kernel.org:/home/rmk/linux-2.6-arm	2010-02-04 16:09:01 -08:00
avr32	avr32: clean up memory allocation in at32_add_device_mci	2009-12-28 12:33:00 +01:00
blackfin	blackfin,kgdb: Do not put PC in gdb_regs into retx.	2010-01-07 11:58:37 -06:00
cris	Merge branch 'for-33' of git://repo.or.cz/linux-kbuild	2009-12-17 07:23:42 -08:00
frv	FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stack	2010-01-06 18:16:02 -08:00
h8300	Merge branch 'for-33' of git://repo.or.cz/linux-kbuild	2009-12-17 07:23:42 -08:00
ia64	[IA64] move fnptr definition inside #ifdef __KERNEL__	2010-01-08 10:53:28 -08:00
m32r	elf: kill USE_ELF_CORE_DUMP	2009-12-16 07:20:12 -08:00
m68k	m68knommu: fix definitions of __pa() and __va()	2010-01-12 20:51:45 -08:00
m68knommu	m68knommu: fix invalid flags on coldfire pit clocksource	2010-01-16 12:15:38 -08:00
microblaze	microblaze: Invalidate dcache before enabling it	2010-02-08 11:39:18 +01:00
mips	Merge remote branch 'linus/master' into x86/bootmem	2010-02-10 16:55:28 -08:00
mn10300	mn10300: update the ASB2303 defconfig	2010-01-11 09:34:10 -08:00
parisc	Merge branch 'for-33' of git://repo.or.cz/linux-kbuild	2009-12-17 07:23:42 -08:00
powerpc	powerpc: Fix address masking bug in hpte_need_flush()	2010-02-10 13:58:06 +11:00
s390	[S390] Fix struct _lowcore layout.	2010-02-09 09:46:23 +01:00
score	Merge remote branch 'linus/master' into x86/bootmem	2010-02-10 16:55:28 -08:00
sh	sh: Remove superfluous setup_frame_reg call	2010-02-08 10:47:11 +09:00
sparc	sparc: TIF_ABI_PENDING bit removal	2010-01-29 08:22:01 -08:00
um	Unrot uml mconsole a bit	2010-01-14 09:05:26 -05:00
x86	x86: Make early_node_mem get mem > 4 GB if possible	2010-02-10 17:47:18 -08:00
xtensa	Merge branch 'for-33' of git://repo.or.cz/linux-kbuild	2009-12-17 07:23:42 -08:00
.gitignore
Kconfig	hw-breakpoints: Fix hardware breakpoints -> perf events dependency	2009-12-18 13:11:51 +01:00