From: Mark Brown <broonie(a)linaro.org>
Probably due to rebasing over the lengthy time it took to get the patch
merged commit addea9ef055b (cpufreq: enable ARM drivers on arm64) added
a duplicate Power management options section. Add CPUfreq to the CPU
power management section and remove a duplicate include of the main
power section.
Signed-off-by: Mark Brown <broonie(a)linaro.org>
---
arch/arm64/Kconfig | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a3c40d65128b..2474c24dc229 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -318,12 +318,6 @@ menu "CPU Power Management"
source "drivers/cpuidle/Kconfig"
-endmenu
-
-menu "Power management options"
-
-source "kernel/power/Kconfig"
-
source "drivers/cpufreq/Kconfig"
endmenu
--
1.9.0
Adding libdw DWARF post unwind support, which is part
of elfutils-devel/libdw-dev package from version 0.158.
Also includes the test suite for dwarf unwinding, by adding the
arch specific test code and the perf_regs_load function.
Jean Pihet (3):
perf tests: Introduce perf_regs_load function on ARM
perf tests: Add dwarf unwind test on ARM
perf tools: Add libdw DWARF post unwind support for ARM
tools/perf/Makefile.perf | 2 +-
tools/perf/arch/arm/Makefile | 7 ++++
tools/perf/arch/arm/include/perf_regs.h | 5 +++
tools/perf/arch/arm/tests/dwarf-unwind.c | 59 ++++++++++++++++++++++++++++++++
tools/perf/arch/arm/tests/regs_load.S | 51 +++++++++++++++++++++++++++
tools/perf/arch/arm/util/unwind-libdw.c | 36 +++++++++++++++++++
tools/perf/tests/builtin-test.c | 2 +-
tools/perf/tests/tests.h | 2 +-
8 files changed, 161 insertions(+), 3 deletions(-)
create mode 100644 tools/perf/arch/arm/tests/dwarf-unwind.c
create mode 100644 tools/perf/arch/arm/tests/regs_load.S
create mode 100644 tools/perf/arch/arm/util/unwind-libdw.c
---
- Rebased on latest acme/perf/core git tree,
- Tested on quad-core ARMv7 machine
--
1.7.11.7
The cpu_load decays on time according past cpu load of rq. The sched_avg
also decays tasks' load on time. Now we has 2 kind decay for cpu_load.
That is a kind of redundancy. And increase the system load by decay
calculation. This patch try to remove the cpu_load decay.
There are 5 load_idx used for cpu_load in sched_domain. busy_idx and
idle_idx are not zero usually, but newidle_idx, wake_idx and forkexec_idx
are all zero on every arch. A shortcut to remove cpu_Load decay in the first
patch. just one line patch for this change. Then I try to clean up code
followed by this change.
V4,
1, rebase on latest tip/master
2, replace target_load by biased_load as Morten's suggestion
V3,
1, correct the wake_affine bias. Thanks for Morten's reminder!
2, replace source_load by weighted_cpuload for better function name meaning.
V2,
1, This version do some tuning on load bias of target load.
2, Got further to remove the cpu_load in rq.
3, Revert the patch 'Limit sd->*_idx range on sysctl' since no needs
Any testing/comments are appreciated.
This patch rebase on latest tip/master.
The git tree for this patchset at:
git@github.com:alexshi/power-scheduling.git noload
Thanks
Alex
[PATCH 01/11] sched: shortcut to remove load_idx
[PATCH 02/11] sched: remove rq->cpu_load[load_idx] array
[PATCH 03/11] sched: clean up cpu_load update
[PATCH 04/11] sched: unify imbalance bias for target group
[PATCH 05/11] sched: rewrite update_cpu_load_nohz
[PATCH 06/11] sched: clean up source_load/target_load
[PATCH 07/11] sched: replace source_load by weighted_cpuload
[PATCH 08/11] sched: replace target_load by biased_load
[PATCH 09/11] sched: remove rq->cpu_load and rq->nr_load_updates
[PATCH 10/11] sched: rename update_*_cpu_load
[PATCH 11/11] sched: clean up task_hot function
Patches adding support for hibernation on ARM
- ARM hibernation / suspend-to-disk
- Change soft_restart to use non-tracing raw_local_irq_disable
Patches based on v3.14-rc5 tag, verified hibernation on beaglebone black on a
branch based on 3.13 merged with initial omap support from Russ Dill which
can be found here (includes v1 patchset):
http://git.linaro.org/git-ro/people/sebastian.capella/linux.git hibernation_3.13_russMerge
[PATCH v8 1/2] ARM: avoid tracers in soft_restart
arch/arm/kernel/process.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Use raw_local_irq_disable in place of local_irq_disable to avoid
infinite abort recursion while tracing. (unchanged since v3)
[PATCH v8 2/2] ARM hibernation / suspend-to-disk
arch/arm/kernel/Makefile | 1 +
arch/arm/kernel/hibernate.c | 107 +++++++++++++++++++++++++++++++++++++++++++
arch/arm/mm/Kconfig | 5 ++
include/linux/suspend.h | 2 +
4 files changed, 115 insertions(+)
Adds support for ARM based hibernation
Additional notes:
-----------------
There are two checkpatch warnings added by this patch. These follow
behavior in existing hibernation implementations on other platforms.
WARNING: externs should be avoided in .c files
#108: FILE: arch/arm/kernel/hibernate.c:25:
+extern const void __nosave_begin, __nosave_end;
This extern is picking up the linker nosave region definitions, only
used in hibernate. Follows same extern line used mips, powerpc, s390,
sh, sparc, x86 & unicore32
WARNING: externs should be avoided in .c files
#186: FILE: arch/arm/kernel/hibernate.c:103:
+ extern void call_with_stack(void (*fn)(void *), void *arg, void *sp);
This extern is used in the arch/arm/ in hibernate, process and bL_switcher
Changes in v8:
--------------
* remove definition and use of __pa_symbol
Changes in v7:
--------------
* remove use of RELOC_HIDE macro
* remove unused #includes
* fixup comment for arch_restore_image
* ensure alignment of resume stack on 8 byte boundary
Changes in v6:
--------------
* Simplify static variable names
Changes in v5:
--------------
* Fixed checkpatch warning on trailing whitespace
Changes in v4:
--------------
* updated comment for soft_restart with review feedback
* dropped freeze_processes patch which was queued separately
to 3.14 by Rafael Wysocki:
https://lkml.org/lkml/2014/2/25/683
Changes in v3:
--------------
* added comment to use of soft_restart
* drop irq disable soft_restart patch
* add patch to avoid tracers in soft_restart by using raw_local_irq_*
Changes in v2:
--------------
* Removed unneeded flush_thread, use of __naked and cpu_init.
* dropped Cyril Chemparathy <cyril(a)ti.com> from Cc: list as
emails are bouncing.
Thanks,
Sebastian Capella
This is v6 of my attempt to add support for a generic pci_host_bridge controller created
from a description passed in the device tree.
Changes from v5:
- Tested by Tanmay Inamdar, thanks Tanmay!
- dropped v5 5/7 pci: Use parent domain number when allocating child busses.
- Added weak implementation of pcibios_fixup_bridge_ranges() in drivers/pci/host-bridge.c
so that architectures that enable CONFIG_OF and CONFIG_PCI don't suddenly get compilation
errors. While at this, changed the signature of the function so that an error can be
returned.
- With the new error code in pcibios_fixup_bridge_ranges(), reworked the error handling
in pci_host_bridge_of_get_ranges() and of_create_pci_host_bridge().
- Add linux/slab.h to the #include list
- Revisit the error path in pci_create_root_bus[_in_domain]() and fixed the case where
failing to allocate the bus will not return an error.
Changes from v4:
- Export pci_find_host_bridge() to be used by arch code. There is scope for
making the arch/arm64 version of pci_domain_nr the default weak implementation
but that would double the size of this series in order to handle all #define
versions of the pci_domain_nr() function, so I suggest keeping that for a separate
cleanup series.
Changes from v3:
- Dynamically allocate bus_range resource in of_create_pci_host_bridge()
- Fix the domain number used when creating child busses.
- Changed domain number allocator to use atomic operations.
- Use ERR_PTR() to propagate the error out of pci_create_root_bus_in_domain()
and of_create_pci_host_bridge().
Changes from v2:
- Use range->cpu_addr when calling pci_address_to_pio()
- Introduce pci_register_io_range() helper function in order to register
io ranges ahead of their conversion to PIO values. This is needed as no
information is being stored yet regarding the range mapping, making
pci_address_to_pio() fail. Default weak implementation does nothing,
to cover the default weak implementation of pci_address_to_pio() that
expects direct mapping of physical addresses into PIO values (x86 view).
Changes from v1:
- Add patch to fix conversion of IO ranges into IO resources.
- Added a domain_nr member to pci_host_bridge structure, and a new function
to create a root bus in a given domain number. In order to facilitate that
I propose changing the order of initialisation between pci_host_bridge and
it's related bus in pci_create_root_bus() as sort of a rever of 7b5436635800.
This is done in patch 1/4 and 2/4.
- Added a simple allocator of domain numbers in drivers/pci/host-bridge.c. The
code will first try to get a domain id from of_alias_get_id(..., "pci-domain")
and if that fails assign the next unallocated domain id.
- Changed the name of the function that creates the generic host bridge from
pci_host_bridge_of_init to of_create_pci_host_bridge and exported as GPL symbol.
v5 thread here: https://lkml.org/lkml/2014/3/4/318
v4 thread here: https://lkml.org/lkml/2014/3/3/301
v3 thread here: https://lkml.org/lkml/2014/2/28/216
v2 thread here: https://lkml.org/lkml/2014/2/27/245
v1 thread here: https://lkml.org/lkml/2014/2/3/380
Best regards,
Liviu
Liviu Dudau (6):
pci: Introduce pci_register_io_range() helper function.
pci: OF: Fix the conversion of IO ranges into IO resources.
pci: Create pci_host_bridge before its associated bus in pci_create_root_bus.
pci: Introduce a domain number for pci_host_bridge.
pci: Export find_pci_host_bridge() function.
pci: Add support for creating a generic host_bridge from device tree
drivers/of/address.c | 39 +++++++++++
drivers/pci/host-bridge.c | 159 ++++++++++++++++++++++++++++++++++++++++++++-
drivers/pci/probe.c | 70 +++++++++++++-------
include/linux/of_address.h | 14 +---
include/linux/pci.h | 17 +++++
5 files changed, 264 insertions(+), 35 deletions(-)
--
1.9.0
