Zhao Yakui 68f4d5a00a x86, setup: Use string copy operation to optimze copy in kernel compression ... The kernel decompression code parses the ELF header and then copies the segment to the corresponding destination. Currently it uses slow byte-copy code. This patch makes it use the string copy operations instead. In the test the copy performance can be improved very significantly after using the string copy operation mechanism. 1. The copy time can be reduced from 150ms to 20ms on one Atom machine 2. The copy time can be reduced about 80% on another machine The time is reduced from 7ms to 1.5ms when using 32-bit kernel. The time is reduced from 10ms to 2ms when using 64-bit kernel. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> LKML-Reference: <1286502453-7043-1-git-send-email-yakui.zhao@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2010-10-07 21:23:09 -07:00
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compressed	x86, setup: Use string copy operation to optimze copy in kernel compression	2010-10-07 21:23:09 -07:00
tools	x86: remove zImage support	2009-03-11 11:00:00 -07:00
.gitignore	x86, boot: add new generated files to the appropriate .gitignore files	2009-06-02 21:13:30 -07:00
a20.c	x86, setup: "glove box" BIOS interrupts in the core boot code	2009-04-09 16:08:11 -07:00
apm.c	x86, setup: "glove box" BIOS interrupts in the APM code	2009-04-09 16:08:11 -07:00
bioscall.S	x86, boot: use .code16gcc instead of .code16	2009-06-16 17:47:32 -07:00
bitops.h	x86: remove pointless comments	2008-04-19 19:19:54 +02:00
boot.h	x86, setup: move isdigit.h to ctype.h, header files on top.	2010-08-02 21:07:20 -07:00
cmdline.c	x86, setup: reorganize the early console setup	2010-08-02 15:51:56 -07:00
code16gcc.h	i386: move boot	2007-10-11 11:16:45 +02:00
copy.S	x86: copy.S - use GLOBAL,ENDPROC macros	2009-02-19 17:13:00 +01:00
cpu.c	x86 setup: handle more than 8 CPU flag words	2008-09-16 15:09:26 -07:00
cpucheck.c	x86: boot: stub out unimplemented CPU feature words	2008-09-05 16:13:44 -07:00
ctype.h	x86, setup: move isdigit.h to ctype.h, header files on top.	2010-08-02 21:07:20 -07:00
early_serial_console.c	x86, setup: Fix earlyprintk=serial,0x3f8,115200	2010-09-21 10:18:33 -07:00
edd.c	x86, setup: "glove box" BIOS interrupts in the EDD code	2009-04-09 16:08:11 -07:00
header.S	kbuild: move utsrelease.h to include/generated	2009-12-12 13:08:15 +01:00
install.sh	kbuild: use INSTALLKERNEL to select customized installkernel script	2009-09-20 12:18:14 +02:00
main.c	x86, setup: enable early console output from the decompressor	2010-08-02 20:32:20 -07:00
Makefile	x86, setup: reorganize the early console setup	2010-08-02 15:51:56 -07:00
mca.c	x86, setup: "glove box" BIOS interrupts in the MCA code	2009-04-09 16:08:11 -07:00
memory.c	Merge branch 'x86/urgent' into x86/setup	2009-05-23 16:42:19 -07:00
mkcpustr.c	x86: Remove trailing spaces in messages	2010-02-07 17:47:51 +01:00
mtools.conf.in	i386: move boot	2007-10-11 11:16:45 +02:00
pm.c	x86: remove zImage support	2009-03-11 11:00:00 -07:00
pmjump.S	x86, setup: move 32-bit code to .text32	2009-03-17 15:26:06 -07:00
printf.c	x86, setup: reorganize the early console setup	2010-08-02 15:51:56 -07:00
regs.c	x86, setup: "glove box" BIOS calls -- infrastructure	2009-04-09 16:08:11 -07:00
setup.ld	x86: Document linker script ASSERT() quirk	2009-10-16 07:18:46 +02:00
string.c	x86, setup: Make the setup code also accept console=uart8250	2010-07-13 14:08:12 -07:00
tty.c	x86, setup: reorganize the early console setup	2010-08-02 15:51:56 -07:00
version.c	kbuild: move utsrelease.h to include/generated	2009-12-12 13:08:15 +01:00
vesa.h	x86-boot: don't request VBE2 information	2008-03-07 16:39:14 +01:00
video-bios.c	x86: fix usage of bios intcall()	2009-07-04 12:56:32 -07:00
video-mode.c	x86: move suspend wakeup code to C	2008-04-17 17:41:37 +02:00
video-vesa.c	Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-09-14 08:01:47 -07:00
video-vga.c	x86, setup: Set ax register in boot vga query	2010-06-10 15:24:29 -07:00
video.c	x86, setup: When restoring the screen, update boot_params.screen_info	2010-02-17 18:32:06 -08:00
video.h	x86, setup: remove obsolete pre-Kconfig CONFIG_VIDEO_ variables	2009-06-26 11:02:31 -07:00