linux-hardened/arch/sh/kernel
Deepthi Dharwar e978aa7d7d cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state
Cpuidle governor only suggests the state to enter using the
governor->select() interface, but allows the low level driver to
override the recommended state. The actual entered state
may be different because of software or hardware demotion. Software
demotion is done by the back-end cpuidle driver and can be accounted
correctly. Current cpuidle code uses last_state field to capture the
actual state entered and based on that updates the statistics for the
state entered.

Ideally the driver enter routine should update the counters,
and it should return the state actually entered rather than the time
spent there. The generic cpuidle code should simply handle where
the counters live in the sysfs namespace, not updating the counters.

Reference:
https://lkml.org/lkml/2011/3/25/52

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com>
Tested-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2011-11-06 21:13:30 -05:00
..
cpu cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state 2011-11-06 21:13:30 -05:00
vsyscall mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
.gitignore
asm-offsets.c sh: Add R-standby sleep mode support 2009-10-30 14:38:45 +09:00
cpufreq.c arch/sh/kernel: Use set_cpus_allowed_ptr 2010-03-29 11:40:37 +09:00
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
debugtraps.S sh: kgdb: Rework breakpoint handling on top of notifier chain. 2009-12-22 12:44:14 +09:00
disassemble.c
dma-nommu.c sh: Revamp PCI DMA coherence Kconfig bits. 2009-10-27 10:35:02 +09:00
dumpstack.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
dwarf.c sh: handle early calls to return_address() when using dwarf unwinder. 2010-05-25 16:16:40 +09:00
entry-common.S sh: Correct the offset of the return address in ret_from_exception 2010-02-08 10:46:46 +09:00
ftrace.c tracing: Unify arch_syscall_addr() implementations 2010-02-17 13:07:21 +01:00
head_32.S sh: boot kernel with SR.BL set 2010-09-30 09:43:32 +09:00
head_64.S sh64: Fix up early serial fixmap. 2010-01-12 15:22:26 +09:00
hw_breakpoint.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2010-05-19 11:36:03 -07:00
idle.c sh: Fix up fallout from cpuidle changes. 2011-08-08 16:30:11 +09:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c sh: support for platforms without PIO. 2010-06-02 16:31:42 +09:00
io_trapped.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
iomap.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
ioport.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
irq.c sh: use printk_ratelimited instead of printk_ratelimit 2011-06-30 15:10:06 +09:00
irq_32.c Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
irq_64.c sh64: update for IRQ flag handling naming changes. 2010-10-27 15:34:51 +09:00
kdebugfs.c sh: provide generic arch_debugfs_dir. 2010-09-24 04:04:26 +09:00
kgdb.c kgdb,sh: update superh kgdb exception handling 2010-05-20 21:04:20 -05:00
kprobes.c sh: kprobes SMP support. 2010-06-14 17:06:10 +09:00
localtimer.c sh: CPU hotplug support. 2010-04-26 19:08:55 +09:00
machine_kexec.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
machvec.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
Makefile Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-01-06 16:50:35 -08:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
nmi_debug.c sh: nmi_debug support. 2009-09-01 17:38:32 +09:00
perf_callchain.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
perf_event.c perf: Dynamic pmu types 2010-12-16 11:36:43 +01:00
process.c sh: Fix build alloc_thread_info_node function 2011-03-24 15:19:14 +09:00
process_32.c sh, exec: remove redundant set_fs(USER_DS) 2011-06-14 15:15:58 +09:00
process_64.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
ptrace.c sh: Add kprobe-based event tracer. 2010-06-14 15:16:53 +09:00
ptrace_32.c perf: Add context field to perf_event 2011-07-01 11:06:38 +02:00
ptrace_64.c sh: Fix ptrace fpu state initialisation 2011-03-23 22:17:52 +09:00
reboot.c sh: Provide a global TLB flush for U/I-TLB clear. 2010-07-02 15:44:09 +09:00
relocate_kernel.S sh: add kexec jump support 2009-03-18 18:57:43 +09:00
return_address.c sh: handle early calls to return_address() when using dwarf unwinder. 2010-05-25 16:16:40 +09:00
setup.c Fix common misspellings 2011-03-31 11:26:23 -03:00
sh_bios.c sh: sh_bios detection. 2010-01-12 18:42:52 +09:00
sh_ksyms_32.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
sh_ksyms_64.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
signal_32.c sh: Mass ctrl_in/outX to __raw_read/writeX conversion. 2010-01-26 12:58:40 +09:00
signal_64.c Merge branch 'sh/stable-updates' 2010-02-15 14:49:37 +09:00
smp.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
stacktrace.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
swsusp.c sh: hibernation support 2009-03-10 12:55:40 +09:00
sys_sh.c sh: avoid to flush all cache in sys_cacheflush 2010-11-17 17:55:30 +09:00
sys_sh32.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
sys_sh64.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
syscalls_32.S All Arch: remove linkage for sys_nfsservctl system call 2011-08-26 15:09:58 -07:00
syscalls_64.S All Arch: remove linkage for sys_nfsservctl system call 2011-08-26 15:09:58 -07:00
time.c sh: Convert sh to use read/update_persistent_clock 2010-03-05 02:04:38 +09:00
topology.c sh: Fix sh build failure when CONFIG_SFC=m 2011-01-19 12:16:55 +09:00
traps.c sh: Mass ctrl_in/outX to __raw_read/writeX conversion. 2010-01-26 12:58:40 +09:00
traps_32.c sh: Add unaligned memory access for PC relative intructions 2011-08-29 15:32:10 +09:00
traps_64.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
unwinder.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
vmlinux.lds.S percpu: Always align percpu output section to PAGE_SIZE 2011-03-24 18:50:09 +01:00