kernel_optimize_test/arch/sh/include
Magnus Damm 3292094e88 sh: lockless gpio_set_value()
This patch optimizes the gpio data register handling for gpio_set_value().

Instead of using the good old spinlock-plus-read-modify-write strategy
we now use a shadow register and atomic operations.

This improves the bitbanging mmc performance on Migo-R from 26 Kbytes/s
to 40 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
..
asm sh: lockless gpio_set_value() 2009-01-27 14:49:10 +09:00
cpu-common/cpu sh: Allow SH-3 and SH-5 to use common headers. 2008-07-29 22:52:49 +09:00
cpu-sh2/cpu SH2(A) cache update 2008-08-04 16:33:47 +09:00
cpu-sh2a/cpu sh: Move the CPU definition headers from asm/ to cpu/. 2008-10-20 12:04:53 +09:00
cpu-sh3/cpu sh: Add platform-specific constants for SH7709 2008-12-22 18:42:54 +09:00
cpu-sh4/cpu sh: Add on-chip RTC support for SH7722. 2008-10-28 18:40:19 +09:00
cpu-sh5/cpu sh: Allow SH-3 and SH-5 to use common headers. 2008-07-29 22:52:49 +09:00
mach-common/mach sh: mach-edosk7705: Fix up edosk7705 so it all builds again. 2008-12-22 18:44:45 +09:00
mach-dreamcast/mach sh: More header path fixups for mach dir refactoring. 2008-07-29 22:10:01 +09:00
mach-landisk/mach
mach-se/mach sh: mrshpc_setup_windows() needs to be inline. 2008-12-22 18:44:46 +09:00
mach-sh03/mach