cpuidle entry and exit.
2. WFI is skipped for measuring the time.
3. Select the worst case time in a set of 10 cpuidle transactions,
with varying load.
Exit latency and min residency values are supplied as per HW team.
Signed-off-by: Chander Kashyap
Acked-by: Lorenzo Pieralisi
---
This patch
On Fri, Nov 7, 2014 at 5:28 PM, Lorenzo Pieralisi
wrote:
> On Wed, Nov 05, 2014 at 01:15:31PM +0000, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>
> "...has a core power down idle state..."
>
&
. Select the worst case time in the set of 10 cpuidle transactions,
with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7
On Wed, Nov 5, 2014 at 4:42 PM, Lorenzo Pieralisi
wrote:
> On Wed, Nov 05, 2014 at 10:15:36AM +0000, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>> This patch adds support for this state.
>>
>> Entr
is averaged out for 10 cpuidle transactions with varying load.
Exit latency and target residency are supplied as per HW team
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
Sorry for very late response. As i was on vacation so couldn’t reply.
On Tue, Oct 21, 2014 at 10:03 PM, Lorenzo Pieralisi
wrote:
> On Fri, Oct 17, 2014 at 10:43:59AM +0100, Chander Kashyap wrote:
>> Hi Lorenzo,
>>
>> On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
>&g
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
http
Hi Lorenzo,
On Wed, Oct 15, 2014 at 2:30 PM, Lorenzo Pieralisi
wrote:
> On Wed, Oct 15, 2014 at 07:35:20AM +0100, Chander Kashyap wrote:
>> Exynos7 has core power down state where cores can be powered off
>> independently.
>> This patch adds support for this state.
>
>
Exynos7 has core power down state where cores can be powered off independently.
This patch adds support for this state.
Signed-off-by: Chander Kashyap
---
This patch has following dependencies:
- [PATCH v5 0/8] arch: arm64: Enable support for Samsung Exynos7 SoC
http
Hi Kevin,
On Mon, Aug 25, 2014 at 9:02 PM, Kevin Hilman wrote:
> Hi Chander,
>
> Chander Kashyap writes:
>
> [...]
>
>>>> I'm trying it on the 5800/Chromebook2 and it's not terribly stable. I'm
>>>> testing along with CPUidle, so there m
Hi Kevin, Tomasz,
On Sat, Aug 23, 2014 at 5:32 AM, Tomasz Figa wrote:
> Hi Kevin,
>
> Thanks for taking a look at this.
>
> On 23.08.2014 01:54, Kevin Hilman wrote:
>> Tomasz Figa writes:
>>
>>> Kukjin,
>>>
>>> On 31.07.2014 20:32, Kukjin Kim wrote:
On 07/30/14 17:07, Thomas Abraham wrote:
On Mon, Aug 11, 2014 at 11:52 AM, Chander Kashyap wrote:
> As save/restore of arm "diagnostic" and "power" registers is handled by
> generic code, so remove the same.
>
> Signed-off-by: Chander Kashyap
> ---
As save/restore of arm "diagnostic" and "power" registers is handled by
generic code, so remove the same.
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/pm.c | 54 ++---
1 file changed, 2 insertions(+), 52 deletions(-)
d
Hi Tomasz,
On Tue, Jul 15, 2014 at 11:11 PM, Tomasz Figa wrote:
> Hi Chander,
>
> Please see my comments inline.
>
> On 01.07.2014 16:32, Chander Kashyap wrote:
>> Pre/post platform specific cpuidle operations are handled by pm_notifier.
>> But these operations a
On Tue, Jul 15, 2014 at 5:45 PM, Tomasz Figa wrote:
> On 15.07.2014 13:19, Bartlomiej Zolnierkiewicz wrote:
>>
>> Hi,
>>
>> On Monday, July 14, 2014 11:54:48 AM Tomasz Figa wrote:
>>> Hi Kukjin,
>>>
>>> On 25.06.2014 13:52, Tomasz Figa wrote:
Due to recent consolidation of Exynos suspend and
On Tue, Jul 8, 2014 at 7:47 PM, Russell King - ARM Linux
wrote:
> On Tue, Jul 08, 2014 at 03:56:48PM +0200, Tomasz Figa wrote:
>> On 02.07.2014 05:11, Chander Kashyap wrote:
>> > On Tue, Jul 1, 2014 at 8:22 PM, Russell King - ARM Linux
>> > wrote:
>> >> O
On Tue, Jul 1, 2014 at 8:22 PM, Russell King - ARM Linux
wrote:
> On Tue, Jul 01, 2014 at 08:02:36PM +0530, Chander Kashyap wrote:
>> This patch series fixes the cpuidle for different states. Also removes arm
>> diagnostic and power register save/restore code as it is made generic.
As save/restore of arm "diagnostic" and "power" registers is handled by
generic code, so remove the same.
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/pm.c | 54 ++---
1 file changed, 2 insertions(+), 52 deletions(-)
d
Pre/post platform specific cpuidle operations are handled by pm_notifier.
But these operations are not same for all cpuidle states. Handle this by
moving cpuidle specific code from pm_notifier to cpuidle specific function.
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/common.h
power control register on Cortex-A9 suspend/resume
http://www.spinics.net/lists/arm-kernel/msg343320.html
Chander Kashyap (2):
ARM: Exynos: remove arm diagnostic and power register save/restore
code
cpuidle: Exynos: fix cpuidle for all states
arch/arm/mach-exynos/common.h|2
On Thu, Jun 26, 2014 at 3:18 PM, Tomasz Figa wrote:
> Hi Chander,
>
> On 26.06.2014 11:07, Chander Kashyap wrote:
>> On Fri, Apr 11, 2014 at 4:10 PM, Daniel Lezcano
>> wrote:
>
> [snip]
>
>>> @@ -359,6 +373,7 @@ static int exynos_cpu_pm_no
On Fri, Apr 11, 2014 at 4:10 PM, Daniel Lezcano
wrote:
> The code to initiate and exit the powerdown sequence is the same in pm.c and
> cpuidle.c.
>
> Let's split the common part in the pm.c and reuse it from the cpu_pm notifier.
>
> That is one more step forward to make the cpuidle driver arch in
Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
This patchset adds cpuidle support for Exynos5420 SoC based on
generic big.little cpuidle driver.
Tested on SMDK5420.
Rebased on 3.16-rc1
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big
From: Chander Kashyap
This driver will be used by many big.Little Soc's. As of now it does
string matching of hardcoded compatible string to init the driver. This
comparison list will keep on growing with addition of new SoC's.
Hence add of_device_id structure to collect the compatib
From: Chander Kashyap
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz
From: Chander Kashyap
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Dani
From: Chander Kashyap
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Daniel Lezcano
From: Chander Kashyap
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
Acked-by: Daniel Lezcano
---
Changes in v5: None
Changes i
From: Chander Kashyap
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Reviewed-by: Tomasz Figa
---
Changes in v6: None
Changes in v5
Hi Doug,
On 13 June 2014 20:40, Doug Anderson wrote:
> Chander,
>
> On Fri, Jun 13, 2014 at 4:54 AM, Chander Kashyap
> wrote:
>> This patch is effectively changing the mcpm_entry_point address from
>> nsbase + 0x1c to nsbase + 0x8
>>
>> Hence while integra
On Wed, Jun 11, 2014 at 8:58 PM, Kukjin Kim wrote:
> On 06/12/14 00:19, Doug Anderson wrote:
>>
>> Chander,
>>
>> On Tue, Jun 10, 2014 at 9:52 PM, Chander Kashyap
>> wrote:
>>>
>>> Hi Doug,
>>>
>>> On Tue, Jun 10, 2014 at
On 11 June 2014 18:45, Lorenzo Pieralisi wrote:
> On Wed, Jun 11, 2014 at 01:14:21PM +0100, Chander Kashyap wrote:
>> On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
>> wrote:
>> > On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
>> >> Hi Do
On Wed, Jun 11, 2014 at 3:43 PM, Lorenzo Pieralisi
wrote:
> On Wed, Jun 11, 2014 at 05:52:10AM +0100, Chander Kashyap wrote:
>> Hi Doug,
>>
>> On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre
>> wrote:
>> > On Tue, 10 Jun 2014, Doug Anderson wrote:
>>
Hi Doug,
On Tue, Jun 10, 2014 at 9:19 PM, Nicolas Pitre wrote:
> On Tue, 10 Jun 2014, Doug Anderson wrote:
>
>> My S-state knowledge is not strong, but I believe that Lorenzo's
>> questions matter if we're using S2 for CPUidle (where we actually turn
>> off power and hot unplug CPUs) but not when
gt;> > what does secure firmware do on reboot from suspend to RAM - in
>> > particular how is the "jump" address to bootloader/kernel set ?)
>>
>> Should be described above now.
>
> Thank you very much.
>
> Lorenzo
>
> --
> To unsubscribe
On 28 May 2014 14:32, Daniel Lezcano wrote:
> On 05/28/2014 06:35 AM, Kukjin Kim wrote:
>>
>> Chander Kashyap wrote:
>>>
>>>
>>> On 26 May 2014 15:59, Tomasz Figa wrote:
>>>>
>>>> Hi Chander,
>>>>
>>>> O
On 26 May 2014 15:59, Tomasz Figa wrote:
> Hi Chander,
>
> On 16.05.2014 10:03, Chander Kashyap wrote:
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
On 19 May 2014 11:10, Chander Kashyap wrote:
> Hi Daniel/Kgene,
>
> On 16 May 2014 13:33, Chander Kashyap wrote:
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
Hi Daniel/Kgene,
On 16 May 2014 13:33, Chander Kashyap wrote:
> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>
> This patchset adds cpuidle support for Exynos5420 SoC based on
> generic big.little cpuidle driver.
>
> Tested on SMDK5420.
>
> T
27;s using this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62.
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4:
1. Typo fixed from SOC_EXYNOS5420 to A
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v5: None
Changes in v4: None
Changes in v3:
1. Add compatible
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v6: None
Changes in v5:
1. Add comment to address cache access
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v6:
1. Move cpuidle registration
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/regs-pmu.h |
Hi Tomasz,
On 16 May 2014 02:56, Tomasz Figa wrote:
> Hi Chander,
>
> On 14.05.2014 10:03, Chander Kashyap wrote:
>> Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle
>> driver.
>> Hence do not allow exynos cpuidle driver registration for Exyn
Hi Daniel,
On 14 May 2014 15:26, Daniel Lezcano wrote:
> On 05/14/2014 10:03 AM, Chander Kashyap wrote:
>>
>> Exynos5420 is a big-little Soc from Samsung. It has 4 A15 and 4 A7 cores.
>>
>> This patchset adds cpuidle support for Exynos5420 SoC based on
>>
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-little SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4:
1. Typo fixed from SOC_EXYNOS5420 to A
27;s using this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62.
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v4: None
Changes in v3:
1. Add compatible string to of_device_id ta
://www.spinics.net/lists/arm-kernel/msg331100.html
Changelog is in respective patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
arm: exynos: add generic function to calculate cpu number
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/regs-pmu.h |
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v5:
1. Add comment to address cache access while c-bit is
On 9 May 2014 14:04, Chander Kashyap wrote:
> On 9 May 2014 13:47, Tomasz Figa wrote:
>> Hi Chander,
>>
>> On 09.05.2014 09:50, Chander Kashyap wrote:
>>> On 5 May 2014 09:37, Chander Kashyap wrote:
>>>> On 25 April 2014 11:14, Chander Kashyap wrote:
&
On 14 May 2014 08:32, Nicolas Pitre wrote:
> On Wed, 14 May 2014, Chander Kashyap wrote:
>
>> On 14 May 2014 08:14, Abhilash Kesavan wrote:
>> > Hi Lorenzo,
>> >
>> > On Tue, May 13, 2014 at 10:18 PM, Lorenzo Pieralisi
>> > wrote:
>> >>
>>> + __raw_writel(virt_to_phys(mcpm_entry_point),
>>> + ns_sram_base_addr + MCPM_BOOT_ADDR_OFFSET);
>>> +
>>
>> ns_sram_base_addr must be unmapped, since it is unused after the write.
> Will unmap.
This mapping is required in for cpuilde (suspend) to program
mcpm_entry before going to suspend.
>
> Regards,
> Abhilash
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc"
> in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
with warm regards,
Chander Kashyap
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Lorenzo,
On 13 May 2014 22:44, Lorenzo Pieralisi wrote:
> On Tue, May 13, 2014 at 12:43:31PM +0100, Chander Kashyap wrote:
>
> [...]
>
>> >> +static void exynos_suspend(u64 residency)
>> >> +{
>> >> + unsigned int mpidr, cpu
Hi Lorenzo
On 9 May 2014 21:02, Lorenzo Pieralisi wrote:
> On Mon, May 05, 2014 at 10:27:20AM +0100, Chander Kashyap wrote:
>> In order to support cpuidle through mcpm, suspend and powered-up
>> callbacks are required in mcpm platform code.
>> Hence populate the same callba
On 9 May 2014 13:47, Tomasz Figa wrote:
> Hi Chander,
>
> On 09.05.2014 09:50, Chander Kashyap wrote:
>> On 5 May 2014 09:37, Chander Kashyap wrote:
>>> On 25 April 2014 11:14, Chander Kashyap wrote:
>>>> The address of cpu power registers in pmu is ba
On 5 May 2014 09:37, Chander Kashyap wrote:
> On 25 April 2014 11:14, Chander Kashyap wrote:
>> The address of cpu power registers in pmu is based on cpu number
>> offsets. This function calculate the same. This is essentially
>> required in case of multicluster
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4:
1. Typo fixed from SOC_EXYNOS5420 to A
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v4: None
Changes in v3:
1. Add compatible string to of_device_id ta
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v4: None
Changes in v3:
1. Removed coherancy enablement after
27;s using this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62.
patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
driver: cpuidle: cpuidle-big-little: init driver for Exynos5420
exynos: cpuidle: do not allow cpuidle registration for
Hi Andreas,
On 5 May 2014 14:29, Andreas Färber wrote:
> Hi,
>
> Am 05.05.2014 10:27, schrieb Chander Kashyap:
>> Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
>> In order to use generic cpuidle-big-little driver, this patch adds Exynos5420
27;s using this driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/cpuidle-big_little.c
b/drivers/cpuidle/cpuidle-big_little.c
index b45fc62.
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
Changes in v3:
1. Add compatible string to of_device_id table insted
Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
In order to use generic cpuidle-big-little driver, this patch adds Exynos5420
specific check to initialize generic cpuidle driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v3: None
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v3:
1. Removed coherance enablement after suspend failure
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file
patches.
Chander Kashyap (5):
driver: cpuidle-big-little: add of_device_id structure
cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little
driver
driver: cpuidle: cpuidle-big-little: init driver for Exynos5420
exynos: cpuidle: do not allow cpuidle registration for
On 25 April 2014 11:14, Chander Kashyap wrote:
> The address of cpu power registers in pmu is based on cpu number
> offsets. This function calculate the same. This is essentially
> required in case of multicluster SoC's e.g Exynos5420.
>
> Signed-off-by: Chander Kashyap
>
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multicluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/regs-pmu.h |
On 24 April 2014 13:18, Chander Kashyap wrote:
> On 22 April 2014 17:55, Chander Kashyap wrote:
>> Currently status/configuration power register values are hard-coded for cpu1.
>>
>> Make it generic so that it is useful for SoC's with more than two cpus.
>>
&
On 22 April 2014 17:55, Chander Kashyap wrote:
> Currently status/configuration power register values are hard-coded for cpu1.
>
> Make it generic so that it is useful for SoC's with more than two cpus.
>
> Signed-off-by: Chander Kashyap
> Signed-off-by: Chander Kashyap
On 23 April 2014 22:02, Lorenzo Pieralisi wrote:
> On Wed, Apr 23, 2014 at 10:25:52AM +0100, Chander Kashyap wrote:
>> Add "samsung,exynos5420" compatible string to initialize generic
>> big-little cpuidle driver for Exynos5420.
>>
>> Signed-off-by: Chand
On 23 April 2014 21:32, Lorenzo Pieralisi wrote:
> [added Nico in CC]
>
> On Wed, Apr 23, 2014 at 10:25:54AM +0100, Chander Kashyap wrote:
>> In order to support cpuidle through mcpm, suspend and powered-up
>> callbacks are required in mcpm platform code.
>> Hence
://www.spinics.net/lists/arm-kernel/msg321666.html
2. [PATCH v4] arm: exynos: generalize power register address calculation
http://www.spinics.net/lists/arm-kernel/msg324024.html
Changelog is in respective patches.
Chander Kashyap (4):
cpuidle: config: Add SOC_EXYNOS5420
Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
In order to use generic cpuidle-big-little driver, this patch adds Exynos5420
specific check to initialize generic cpuidle driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
Changes in v2:
1
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
drivers/cpuidle/cpuidle-big_little.c |3 ++-
1 file changed, 2 insertions(+),
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
Acked-by: Daniel Lezcano
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
changes in v2:
1. Fixed typo: enynos_pmu_cpunr to exynos_pmu_cpunr
arch
On 22 April 2014 16:21, Daniel Lezcano wrote:
> On 04/21/2014 01:49 PM, Chander Kashyap wrote:
>>
>> In order to support cpuidle through mcpm, suspend and powered-up
>> callbacks are required in mcpm platform code.
>> Hence populate the same callbacks.
>>
Hi Daniel,
On 22 April 2014 16:12, Daniel Lezcano wrote:
> On 04/21/2014 01:49 PM, Chander Kashyap wrote:
>>
>> Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
>> In order to use generic cpuidle-big-little driver, this patch adds
>> Exyn
Currently status/configuration power register values are hard-coded for cpu1.
Make it generic so that it is useful for SoC's with more than two cpus.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
changes in v5:
1. Fix typo: enynos_pmu_cpunr -> exynos_p
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/mcpm-exynos.c | 53
1
Exynos5420 is a big-little SoC from Samsung. It has 4 A15 and 4 A7 cores.
In order to use generic cpuidle-big-little driver, this patch adds Exynos5420
specific check to initialize generic cpuidle driver.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
arch/arm/mach-exynos/cpuidle.c |3 +++
1 file changed, 3 insertions
://www.spinics.net/lists/arm-kernel/msg321666.html
2. [PATCH v4] arm: exynos: generalize power register address calculation
http://www.spinics.net/lists/arm-kernel/msg324024.html
Chander Kashyap (4):
cpuidle: config: Add SOC_EXYNOS5420 entry to select
cpuidle-big
Add "samsung,exynos5420" compatible string to initialize generic
big-little cpuidle driver for Exynos5420.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
drivers/cpuidle/cpuidle-big_little.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
Currently status/configuration power register values are hard-coded for cpu1.
Make it generic so that it is useful for SoC's with more than two cpus.
Signed-off-by: Chander Kashyap
Signed-off-by: Chander Kashyap
---
changes in v4:
1: Dropped changes in platsmp.c and hotplug.c as
dr))
> - __raw_writel(boot_addr, cpu_boot_reg(phys_cpu));
> + if (call_firmware_op(set_cpu_boot_addr, core_id, boot_addr))
> + __raw_writel(boot_addr, cpu_boot_reg(core_id));
> }
> }
>
> --
> 1.9.2
>
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--
with warm regards,
Chander Kashyap
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Hi Tomasz,
On 18 April 2014 19:42, Tomasz Figa wrote:
> Hi Chander,
>
>
> On 15.04.2014 09:38, Chander Kashyap wrote:
>>
>> Currently status/configuration power register values are hard-coded for
>> cpu1.
>>
>> Make it generic so that it is useful for S
Currently status/configuration power register values are hard-coded for cpu1.
Make it generic so that it is useful for SoC's with more than two cpus.
Signed-off-by: Chander Kashyap
---
changes in v3:
1. Move cpunr calculation to a macro
2. Changed printk format specifier
Hi Tomasz,
Thanks for the review comments,
On 14 April 2014 22:58, Tomasz Figa wrote:
> Hi Chander,
>
> Few more comments inline.
>
>
> On 09.04.2014 13:09, Chander Kashyap wrote:
>>
>> Currently status/configuration power register values are hard-coded for
>>
Hi,
On 10 April 2014 11:18, Chander Kashyap wrote:
> Hi Tomasz,
>
> On 9 April 2014 20:15, Tomasz Figa wrote:
>> On 09.04.2014 15:49, Chander Kashyap wrote:
>>>
>>> Hi Tomasz,
>>>
>>> On 9 April 2014 17:19, Tomasz Figa wrote:
>>>&g
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