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0453fb3c52
linux/arch/mips
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David Daney 0453fb3c52 MIPS: Use GCC __builtin_prefetch() to implement prefetch(). 
GCC's __builtin_prefetch() was introduced a long time ago, all
supported GCC versions have it.  Lets do what the big boys up in
linux/prefetch.h do, except we use '1' as the third parameter to
provoke 'PREF 0,...'  and 'PREF 1,...' instead of other prefetch
hints.

This allows for better code generation.  In theory the existing
embedded asm could be optimized, but the compiler has these builtins,
so there is really no point.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1235/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:23 +01:00
..
alchemy MIPS: Alchemy: add sysdev for DBDMA PM. 2010-05-21 21:31:15 +01:00
ar7 MIPS: AR7: prevent race between clock initialization and devices registration 2010-05-21 21:31:22 +01:00
bcm47xx MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
bcm63xx MIPS: BCM63xx: Avoid namespace clash on GPIO_DIR_{IN,OUT} 2010-05-21 21:31:22 +01:00
boot MIPS: Make the debugging of compressed kernel configurable 2010-02-27 12:53:24 +01:00
cavium-octeon MIPS: Octeon: Serial port fixes for OCTEON simulator. 2010-05-21 21:31:23 +01:00
cobalt MIPS: Cobalt: Fix theoretical port aliasing issue 2010-02-27 12:53:43 +01:00
configs MIPS: MTX-1: Update defconfig 2010-05-21 21:31:21 +01:00
dec MIPS: DEC: Convert KN01 lock to raw spinlock. 2010-02-27 12:53:36 +01:00
emma MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
fw MIPS: IP22: Remove an unused function 2009-12-17 01:56:56 +00:00
gt64120/wrppmc Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
include/asm MIPS: Use GCC __builtin_prefetch() to implement prefetch(). 2010-05-21 21:31:23 +01:00
jazz MIPS: Fixup screen_info struct initializations 2010-04-30 20:52:42 +01:00
kernel MIPS: nofpu and nodsp only affect CPU0 2010-05-21 21:31:17 +01:00
lasat MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
lib MIPS: libgcc.h: Checkpatch cleanup 2010-04-12 17:26:15 +01:00
loongson MIPS: Loongson 2F: Add gpio/gpioilb support 2010-05-21 21:31:16 +01:00
math-emu MIPS: Coding style cleanups of access of FCSR rounding mode bits 2010-05-21 21:31:17 +01:00
mipssim include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mm MIPS: Check for accesses beyond the end of the PGD. 2010-04-30 20:52:48 +01:00
mti-malta include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nxp MIPS: PNX8550: Fix build error, broken by: 2010-04-30 20:52:39 +01:00
oprofile MIPS: Oprofile: Loongson: Cleanup the comments 2010-05-21 21:31:19 +01:00
pci MIPS: SB1250: Include correct header and fix a warning 2010-04-30 20:52:43 +01:00
pmc-sierra include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
power MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
powertv MIPS: Clean up tables for bootmem allocation 2010-05-21 21:31:17 +01:00
rb532 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sgi-ip22 MIPS: die() does not call die notifier chain 2010-04-30 20:52:45 +01:00
sgi-ip27 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sgi-ip32 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sibyte Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
sni MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock. 2010-02-27 12:53:39 +01:00
txx9 sysfs: add struct file* to bin_attr callbacks 2010-05-21 09:37:31 -07:00
vr41xx MIPS: VR41xx: Use strlcat() for the command line arguments 2010-01-12 18:19:30 +01:00
Kconfig MIPS: Loongson 2F: Add gpio/gpioilb support 2010-05-21 21:31:16 +01:00
Kconfig.debug MIPS: Crazy spinlock speed test. 2010-02-27 12:53:42 +01:00
Makefile MIPS: Loongson 2F: Enable fixups of the latest binutils 2010-04-30 20:52:56 +01:00