aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa
diff options
context:
space:
mode:
authorRichard Woodruff <r-woodruff2@ti.com>2010-12-20 15:05:03 -0500
committerKevin Hilman <khilman@deeprootsystems.com>2010-12-21 17:45:47 -0500
commit0bd40535365c318e331f5e872030a710d5746167 (patch)
treee08c1d72b3eac6e260f2d8841c465d154a03c2af /arch/arm/mach-pxa
parent1cbbe37ac5c78fb59ce02f639d6c4f69b610cf5e (diff)
OMAP3: PM: Update clean_l2 to use v7_flush_dcache_all
Analysis in TI kernel with ETM showed that using cache mapped flush in kernel instead of SO mapped flush cost drops by 65% (3.39mS down to 1.17mS) for clean_l2 which is used during sleep sequences. Overall: - speed up - unfortunately there isn't a good alternative flush method today - code reduction and less maintenance and potential bug in unmaintained code This also fixes the bug with the clean_l2 function usage. Reported-by: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> [nm@ti.com: ported rkw's proposal to 2.6.37-rc2] Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-pxa')
0 files changed, 0 insertions, 0 deletions