kernel_optimize_test/arch/tile
Chris Metcalf 0b989cac90 arch/tile: use a cleaner technique to enable interrupt for cpu_idle()
Previously we used iret to atomically return to kernel PL with
interrupts enabled.  However, it turns out that we are architecturally
guaranteed that we can just set and clear the "interrupt critical
section" and only interrupt on the following instruction, so we
now do that instead, since it's cleaner.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2011-03-01 16:20:48 -05:00
..
configs kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
include arch/tile: sync up with <arch/sim.h> and <arch/sim_def.h> changes 2011-03-01 16:20:42 -05:00
kernel arch/tile: use a cleaner technique to enable interrupt for cpu_idle() 2011-03-01 16:20:48 -05:00
kvm arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
lib arch/tile: fix __ndelay etc to work better 2011-03-01 16:20:04 -05:00
mm arch/tile: fix reversed test of strict_strtol() return value 2011-03-01 16:20:36 -05:00
Kbuild arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
Kconfig tile: Select GENERIC_HARDIRQS_NO_DEPRECATED 2011-02-23 16:07:36 -05:00
Kconfig.debug kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00