Re: [PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-06-17 Thread Zhao Chenhui
On Fri, Jun 14, 2013 at 05:29:17PM +0200, Sebastian Andrzej Siewior wrote: > * Zhao Chenhui | 2013-06-09 17:59:42 [+0800]: > > >No. _cpu_down() on mainline do not change the cpus_allowed. > My bad. > > >The problem is that the task which turned off cpu2 (for instance

Re: [PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-06-17 Thread Zhao Chenhui
On Fri, Jun 14, 2013 at 05:29:17PM +0200, Sebastian Andrzej Siewior wrote: * Zhao Chenhui | 2013-06-09 17:59:42 [+0800]: No. _cpu_down() on mainline do not change the cpus_allowed. My bad. The problem is that the task which turned off cpu2 (for instance) can not run on cpu2 again after

Re: [PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-06-13 Thread Zhao Chenhui
On Wed, Jun 12, 2013 at 01:25:22PM +1000, Benjamin Herrenschmidt wrote: > On Mon, 2013-06-03 at 18:43 +0800, Zhao Chenhui wrote: > > On Sat, Jun 01, 2013 at 07:49:44AM +1000, Benjamin Herrenschmidt wrote: > > > On Tue, 2013-05-28 at 15:59 +0800, Zhao Chenhui wrote: > >

Re: [PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-06-13 Thread Zhao Chenhui
On Wed, Jun 12, 2013 at 01:25:22PM +1000, Benjamin Herrenschmidt wrote: On Mon, 2013-06-03 at 18:43 +0800, Zhao Chenhui wrote: On Sat, Jun 01, 2013 at 07:49:44AM +1000, Benjamin Herrenschmidt wrote: On Tue, 2013-05-28 at 15:59 +0800, Zhao Chenhui wrote: Some features depend on the boot

Re: [PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-06-09 Thread Zhao Chenhui
On Fri, Jun 07, 2013 at 11:05:43AM +0200, Sebastian Andrzej Siewior wrote: > * Zhao Chenhui | 2013-05-16 18:17:19 [+0800]: > > >We found a problem. When a cpu is brought down using _cpu_down(), > >the corresponding cpu bit in the cpus_allowed of the current task is > &

Re: [PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-06-09 Thread Zhao Chenhui
On Fri, Jun 07, 2013 at 11:05:43AM +0200, Sebastian Andrzej Siewior wrote: * Zhao Chenhui | 2013-05-16 18:17:19 [+0800]: We found a problem. When a cpu is brought down using _cpu_down(), the corresponding cpu bit in the cpus_allowed of the current task is cleared. But this bit

Re: [PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-06-03 Thread Zhao Chenhui
On Sat, Jun 01, 2013 at 07:49:44AM +1000, Benjamin Herrenschmidt wrote: > On Tue, 2013-05-28 at 15:59 +0800, Zhao Chenhui wrote: > > Some features depend on the boot cpu, for instance, hibernate/suspend. > > So disable hotplug for the boot cpu. > > Don't we have code to "

Re: [PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-06-03 Thread Zhao Chenhui
On Sat, Jun 01, 2013 at 07:49:44AM +1000, Benjamin Herrenschmidt wrote: On Tue, 2013-05-28 at 15:59 +0800, Zhao Chenhui wrote: Some features depend on the boot cpu, for instance, hibernate/suspend. So disable hotplug for the boot cpu. Don't we have code to move the boot CPU around when

[PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-05-28 Thread Zhao Chenhui
Some features depend on the boot cpu, for instance, hibernate/suspend. So disable hotplug for the boot cpu. Signed-off-by: Zhao Chenhui --- arch/powerpc/kernel/sysfs.c |4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel

[PATCH] powerpc/mpic: fix irq distribution problem when MPIC_SINGLE_DEST_CPU

2013-05-28 Thread Zhao Chenhui
For the mpic with a flag MPIC_SINGLE_DEST_CPU, only one bit should be set in interrupt destination registers. The code is applicable to 64-bit platforms as well as 32-bit. Signed-off-by: Zhao Chenhui --- arch/powerpc/sysdev/mpic.c |4 ++-- 1 files changed, 2 insertions(+), 2 deletions

[PATCH] powerpc/mpic: fix irq distribution problem when MPIC_SINGLE_DEST_CPU

2013-05-28 Thread Zhao Chenhui
For the mpic with a flag MPIC_SINGLE_DEST_CPU, only one bit should be set in interrupt destination registers. The code is applicable to 64-bit platforms as well as 32-bit. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/sysdev/mpic.c |4 ++-- 1 files changed, 2

[PATCH] powerpc/sysfs: disable hotplug for the boot cpu

2013-05-28 Thread Zhao Chenhui
Some features depend on the boot cpu, for instance, hibernate/suspend. So disable hotplug for the boot cpu. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/kernel/sysfs.c |4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kernel

[PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-05-16 Thread Zhao Chenhui
. To fix this problem, some related code in the commit cc4088a (hotplug: Lightweight get online cpus) is removed. Signed-off-by: Zhao Chenhui --- kernel/cpu.c | 15 +-- 1 files changed, 1 insertions(+), 14 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index bfeeb00..e25b05f

[PATCH][RFC] kernel/cpu: do not change the cpus_allowed of the current task when unplugging cpus

2013-05-16 Thread Zhao Chenhui
. To fix this problem, some related code in the commit cc4088a (hotplug: Lightweight get online cpus) is removed. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- kernel/cpu.c | 15 +-- 1 files changed, 1 insertions(+), 14 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c

Re: [PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

2013-04-28 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 06:53:20PM -0500, Scott Wood wrote: > On 04/19/2013 05:47:35 AM, Zhao Chenhui wrote: > > static int pmc_suspend_enter(suspend_state_t state) > > { > >-int ret; > >+int ret = 0; > >+ > >+switch (state) { > >+#ifde

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-28 Thread Zhao Chenhui
On Thu, Apr 25, 2013 at 07:07:24PM -0500, Scott Wood wrote: > On 04/24/2013 07:28:18 PM, Zhao Chenhui wrote: > >On Wed, Apr 24, 2013 at 05:38:16PM -0500, Scott Wood wrote: > >> On 04/24/2013 06:29:29 AM, Zhao Chenhui wrote: > >> >On Tue, Apr 23, 2013 at 07:0

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-28 Thread Zhao Chenhui
On Thu, Apr 25, 2013 at 07:07:24PM -0500, Scott Wood wrote: On 04/24/2013 07:28:18 PM, Zhao Chenhui wrote: On Wed, Apr 24, 2013 at 05:38:16PM -0500, Scott Wood wrote: On 04/24/2013 06:29:29 AM, Zhao Chenhui wrote: On Tue, Apr 23, 2013 at 07:04:06PM -0500, Scott Wood wrote: On 04/19/2013

Re: [PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

2013-04-28 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 06:53:20PM -0500, Scott Wood wrote: On 04/19/2013 05:47:35 AM, Zhao Chenhui wrote: static int pmc_suspend_enter(suspend_state_t state) { -int ret; +int ret = 0; + +switch (state) { +#ifdef CONFIG_PPC_85xx +case PM_SUSPEND_MEM: +#ifdef CONFIG_SPE

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-24 Thread Zhao Chenhui
On Wed, Apr 24, 2013 at 05:38:16PM -0500, Scott Wood wrote: > On 04/24/2013 06:29:29 AM, Zhao Chenhui wrote: > >On Tue, Apr 23, 2013 at 07:04:06PM -0500, Scott Wood wrote: > >> On 04/19/2013 05:47:45 AM, Zhao Chenhui wrote: > >> >From: Chen-Hui Zhao > >> >

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 07:04:06PM -0500, Scott Wood wrote: > On 04/19/2013 05:47:45 AM, Zhao Chenhui wrote: > >From: Chen-Hui Zhao > > > >For e6500, two threads in one core share one time base. Just need > >to do time base sync on first thread of one core, and ski

Re: [PATCH v2 13/15] powerpc/85xx: add support for e6500 L1 cache operation

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 07:00:49PM -0500, Scott Wood wrote: > On 04/19/2013 05:47:46 AM, Zhao Chenhui wrote: > >From: Chen-Hui Zhao > > > >The L1 Data Cache of e6500 contains no modified data, no flush > >is required. > > > >Signed-off-by: Zhao Chenhui &

Re: [PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 06:46:10PM -0500, Scott Wood wrote: > On 04/19/2013 05:47:34 AM, Zhao Chenhui wrote: > >These cache operations support Freescale SoCs based on BOOK3E. > >Move L1 cache operations to fsl_booke_cache.S in order to maintain > >easily. And, add cache opera

Re: [PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 06:46:10PM -0500, Scott Wood wrote: On 04/19/2013 05:47:34 AM, Zhao Chenhui wrote: These cache operations support Freescale SoCs based on BOOK3E. Move L1 cache operations to fsl_booke_cache.S in order to maintain easily. And, add cache operations for backside L2 cache

Re: [PATCH v2 13/15] powerpc/85xx: add support for e6500 L1 cache operation

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 07:00:49PM -0500, Scott Wood wrote: On 04/19/2013 05:47:46 AM, Zhao Chenhui wrote: From: Chen-Hui Zhao chenhui.z...@freescale.com The L1 Data Cache of e6500 contains no modified data, no flush is required. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-24 Thread Zhao Chenhui
On Tue, Apr 23, 2013 at 07:04:06PM -0500, Scott Wood wrote: On 04/19/2013 05:47:45 AM, Zhao Chenhui wrote: From: Chen-Hui Zhao chenhui.z...@freescale.com For e6500, two threads in one core share one time base. Just need to do time base sync on first thread of one core, and skip

Re: [PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-24 Thread Zhao Chenhui
On Wed, Apr 24, 2013 at 05:38:16PM -0500, Scott Wood wrote: On 04/24/2013 06:29:29 AM, Zhao Chenhui wrote: On Tue, Apr 23, 2013 at 07:04:06PM -0500, Scott Wood wrote: On 04/19/2013 05:47:45 AM, Zhao Chenhui wrote: From: Chen-Hui Zhao chenhui.z...@freescale.com For e6500, two threads

Re: [linuxppc-release] [PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-23 Thread Zhao Chenhui
Hi Kumar, Scott, Do you have any comments on this set of patches? Best Regards, -Chenhui On Fri, Apr 19, 2013 at 06:47:34PM +0800, Zhao Chenhui wrote: > These cache operations support Freescale SoCs based on BOOK3E. > Move L1 cache operations to fsl_booke_cache.S in order to maintain &g

Re: [linuxppc-release] [PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-23 Thread Zhao Chenhui
Hi Kumar, Scott, Do you have any comments on this set of patches? Best Regards, -Chenhui On Fri, Apr 19, 2013 at 06:47:34PM +0800, Zhao Chenhui wrote: These cache operations support Freescale SoCs based on BOOK3E. Move L1 cache operations to fsl_booke_cache.S in order to maintain easily

Re: [PATCH v2 06/15] powerpc/85xx: add support to JOG feature using cpufreq interface

2013-04-22 Thread Zhao Chenhui
On Mon, Apr 22, 2013 at 08:55:35AM +0530, Viresh Kumar wrote: > On Fri, Apr 19, 2013 at 4:17 PM, Zhao Chenhui > wrote: > > diff --git a/drivers/cpufreq/mpc85xx-cpufreq.c > > b/drivers/cpufreq/mpc85xx-cpufreq.c > > > +#include > > +#include > >

Re: [PATCH v2 06/15] powerpc/85xx: add support to JOG feature using cpufreq interface

2013-04-22 Thread Zhao Chenhui
On Mon, Apr 22, 2013 at 08:55:35AM +0530, Viresh Kumar wrote: On Fri, Apr 19, 2013 at 4:17 PM, Zhao Chenhui chenhui.z...@freescale.com wrote: diff --git a/drivers/cpufreq/mpc85xx-cpufreq.c b/drivers/cpufreq/mpc85xx-cpufreq.c +#include linux/module.h +#include linux/cpufreq.h

[PATCH v2 11/15] powerpc/rcpm: add struct ccsr_rcpm_v2

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao Add struct ccsr_rcpm_v2 to descibe the v2 RCPM register map on some SoCs, such as T4240, etc. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/include/asm/fsl_guts.h | 66 +++ 1 files

[PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

2013-04-19 Thread Zhao Chenhui
of Linux Power Management. Command to enter sleep mode. echo standby > /sys/power/state Command to enter deep sleep mode. echo mem > /sys/power/state Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/platforms/85xx/Makefile |1 + arch/powerpc/platforms/85xx/sleep.S

[PATCH v2 03/15] fsl_pmc: Add API to enable device as wakeup event source

2013-04-19 Thread Zhao Chenhui
From: chenhui zhao Add APIs for setting wakeup source and lossless Ethernet in low power modes. These APIs can be used by wake-on-packet feature. Change-Id: I1803dcd4571af1eac49b43d99c578e7f99e2c278 Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Zhao

[PATCH v2 05/15] fsl_pmc: update device bindings

2013-04-19 Thread Zhao Chenhui
From: Li Yang Signed-off-by: Li Yang Signed-off-by: Zhao Chenhui --- .../devicetree/bindings/powerpc/fsl/pmc.txt| 59 +++ 1 files changed, 34 insertions(+), 25 deletions(-) diff --git a/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt b/Documentation

[PATCH v2 07/15] powerpc/85xx: add time base sync for SoCs based on e500mc/e5500

2013-04-19 Thread Zhao Chenhui
supports SoCs based on e500mc/e5500, such as P4080, P5020, etc. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/include/asm/fsl_guts.h | 38 +++ arch/powerpc/platforms/85xx/smp.c | 32 + 2 files changed, 70 insertions

[PATCH v2 08/15] powerpc/85xx: add cpu hotplug support for e500mc/e5500

2013-04-19 Thread Zhao Chenhui
implementations can override the platform_cpu_die(). Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/Kconfig |2 +- arch/powerpc/include/asm/smp.h|1 + arch/powerpc/kernel/smp.c | 16 ++- arch/powerpc/platforms

[PATCH v2 13/15] powerpc/85xx: add support for e6500 L1 cache operation

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao The L1 Data Cache of e6500 contains no modified data, no flush is required. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/kernel/fsl_booke_cache.S | 11 ++- 1 files changed, 10 insertions(+), 1 deletions

[PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao For e6500, two threads in one core share one time base. Just need to do time base sync on first thread of one core, and skip it on the other thread. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/platforms/85xx/smp.c

[PATCH v2 15/15] powerpc/rcpm: add sleep support for T4/B4 chips

2013-04-19 Thread Zhao Chenhui
and external interrupts. When the device enter sleep state, it will be put in LPM20 mode. The command is "echo standby > /sys/power/state". Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/sysdev/fsl_

[PATCH v2 09/15] powerpc/rcpm: add sleep feature for SoCs using RCPM

2013-04-19 Thread Zhao Chenhui
-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/Kconfig|4 +- arch/powerpc/include/asm/fsl_guts.h |1 + arch/powerpc/platforms/85xx/Kconfig |1 + arch/powerpc/sysdev/Kconfig |5 ++ arch/powerpc/sysdev/Makefile|1 + arch/powerpc/sysdev

[PATCH v2 10/15] powerpc/85xx: fix 64-bit support for cpu hotplug

2013-04-19 Thread Zhao Chenhui
in smp_85xx_kick_cpu() to share codes between PPC64 and PPC32 as far as possible. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang Signed-off-by: Andy Fleming --- arch/powerpc/Kconfig |2 +- arch/powerpc/kernel/smp.c |3 +++ arch/powerpc/mm/tlb_nohash.c

[PATCH v2 14/15] powerpc/smp: add cpu hotplug support for e6500

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao * Only if two threads of one core are offline, the core can enter PH20 state. * Clear PH20 bits before core reset, or core will not restart. * Introduced a variable l2cache_type in the struce cpu_spec to indentify the type of L2 cache. Signed-off-by: Zhao Chenhui Signed

[PATCH v2 06/15] powerpc/85xx: add support to JOG feature using cpufreq interface

2013-04-19 Thread Zhao Chenhui
the erratum. Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jerry Huang Signed-off-by: Zhao Chenhui CC: Scott Wood --- arch/powerpc/platforms/85xx/Makefile |1 + drivers/cpufreq/Kconfig.powerpc | 10 + drivers/cpufreq/Makefile |1 + drivers/cpufreq/mpc85xx

[PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-19 Thread Zhao Chenhui
by this patch is L2 Look-Aside Cache, which appears on SoCs with e500v1/e500v2 core, such as MPC8572, P1020, etc. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/include/asm/cacheflush.h |8 ++ arch/powerpc/kernel/Makefile |1 + arch/powerpc/kernel

[PATCH v2 04/15] pm: add power node to dts

2013-04-19 Thread Zhao Chenhui
The Power Management device tree stub indicated that the platform supports Power Management feature. Signed-off-by: Zhao Chenhui --- arch/powerpc/boot/dts/fsl/mpc8536si-post.dtsi | 14 ++- arch/powerpc/boot/dts/fsl/mpc8544si-post.dtsi |2 + arch/powerpc/boot/dts/fsl/mpc8548si

[PATCH v2 01/15] powerpc/85xx: cache operations for Freescale SoCs based on BOOK3E

2013-04-19 Thread Zhao Chenhui
by this patch is L2 Look-Aside Cache, which appears on SoCs with e500v1/e500v2 core, such as MPC8572, P1020, etc. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com --- arch/powerpc/include/asm/cacheflush.h |8 ++ arch/powerpc/kernel/Makefile

[PATCH v2 04/15] pm: add power node to dts

2013-04-19 Thread Zhao Chenhui
The Power Management device tree stub indicated that the platform supports Power Management feature. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/boot/dts/fsl/mpc8536si-post.dtsi | 14 ++- arch/powerpc/boot/dts/fsl/mpc8544si-post.dtsi |2 + arch/powerpc/boot

[PATCH v2 06/15] powerpc/85xx: add support to JOG feature using cpufreq interface

2013-04-19 Thread Zhao Chenhui
of MPC8536 have corrected the erratum. Signed-off-by: Dave Liu dave...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Jerry Huang chang-ming.hu...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com CC: Scott Wood scottw...@freescale.com --- arch/powerpc/platforms

[PATCH v2 14/15] powerpc/smp: add cpu hotplug support for e6500

2013-04-19 Thread Zhao Chenhui
-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem...@freescale.com --- arch/powerpc/include/asm/cputable.h | 10 arch/powerpc/kernel/cputable.c |5 arch/powerpc/platforms/85xx/smp.c | 40

[PATCH v2 09/15] powerpc/rcpm: add sleep feature for SoCs using RCPM

2013-04-19 Thread Zhao Chenhui
-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com --- arch/powerpc/Kconfig|4 +- arch/powerpc/include/asm/fsl_guts.h |1 + arch/powerpc/platforms/85xx/Kconfig |1 + arch/powerpc/sysdev/Kconfig |5 ++ arch/powerpc/sysdev

[PATCH v2 10/15] powerpc/85xx: fix 64-bit support for cpu hotplug

2013-04-19 Thread Zhao Chenhui
. * Rearrange the code segment in smp_85xx_kick_cpu() to share codes between PPC64 and PPC32 as far as possible. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem...@freescale.com --- arch/powerpc/Kconfig

[PATCH v2 15/15] powerpc/rcpm: add sleep support for T4/B4 chips

2013-04-19 Thread Zhao Chenhui
internal timers and internal and external interrupts. When the device enter sleep state, it will be put in LPM20 mode. The command is echo standby /sys/power/state. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem

[PATCH v2 12/15] powerpc/85xx: add time base sync support for e6500

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao chenhui.z...@freescale.com For e6500, two threads in one core share one time base. Just need to do time base sync on first thread of one core, and skip it on the other thread. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com

[PATCH v2 13/15] powerpc/85xx: add support for e6500 L1 cache operation

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao chenhui.z...@freescale.com The L1 Data Cache of e6500 contains no modified data, no flush is required. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem...@freescale.com --- arch/powerpc/kernel

[PATCH v2 07/15] powerpc/85xx: add time base sync for SoCs based on e500mc/e5500

2013-04-19 Thread Zhao Chenhui
the register map. This patch supports SoCs based on e500mc/e5500, such as P4080, P5020, etc. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com --- arch/powerpc/include/asm/fsl_guts.h | 38 +++ arch/powerpc/platforms/85xx/smp.c

[PATCH v2 08/15] powerpc/85xx: add cpu hotplug support for e500mc/e5500

2013-04-19 Thread Zhao Chenhui
by individual cpus. Platform implementations can override the platform_cpu_die(). Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem...@freescale.com --- arch/powerpc/Kconfig |2 +- arch/powerpc/include/asm/smp.h

[PATCH v2 05/15] fsl_pmc: update device bindings

2013-04-19 Thread Zhao Chenhui
From: Li Yang le...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- .../devicetree/bindings/powerpc/fsl/pmc.txt| 59 +++ 1 files changed, 34 insertions(+), 25 deletions(-) diff --git a/Documentation

[PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

2013-04-19 Thread Zhao Chenhui
of Linux Power Management. Command to enter sleep mode. echo standby /sys/power/state Command to enter deep sleep mode. echo mem /sys/power/state Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com --- arch/powerpc/platforms/85xx/Makefile |1

[PATCH v2 03/15] fsl_pmc: Add API to enable device as wakeup event source

2013-04-19 Thread Zhao Chenhui
le...@freescale.com Signed-off-by: Jin Qing b24...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/sysdev/fsl_pmc.c | 72 - arch/powerpc/sysdev/fsl_soc.h | 11 ++ 2 files changed, 82 insertions(+), 1 deletions

[PATCH v2 11/15] powerpc/rcpm: add struct ccsr_rcpm_v2

2013-04-19 Thread Zhao Chenhui
From: Chen-Hui Zhao chenhui.z...@freescale.com Add struct ccsr_rcpm_v2 to descibe the v2 RCPM register map on some SoCs, such as T4240, etc. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Andy Fleming aflem...@freescale.com

[PATCH] mpic: fix Destination Registers init problem

2013-02-07 Thread Zhao Chenhui
MPIC_SINGLE_DEST_CPU is set. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/sysdev/mpic.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9c6e535..cc537f8 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b

[PATCH] mpic: fix Destination Registers init problem

2013-02-07 Thread Zhao Chenhui
MPIC_SINGLE_DEST_CPU is set. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com Signed-off-by: Li Yang le...@freescale.com --- arch/powerpc/sysdev/mpic.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9c6e535..cc537f8

Re: [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-14 Thread Zhao Chenhui
On Sat, Aug 11, 2012 at 08:19:43AM -0500, Tabi Timur-B04825 wrote: > On Tue, Aug 7, 2012 at 3:43 AM, Zhao Chenhui > wrote: > > > +int mpc85xx_pmc_set_wake(struct device *dev, bool enable) > > +{ > > + int ret = 0; > > + struct device_node *cl

Re: [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-14 Thread Zhao Chenhui
On Sat, Aug 11, 2012 at 08:19:43AM -0500, Tabi Timur-B04825 wrote: > On Tue, Aug 7, 2012 at 3:43 AM, Zhao Chenhui > wrote: > > > + return -EINVAL; > > + > > + prop = of_get_property(clk_np, "fsl,pmcdr-mask", NULL); > > + if

Re: [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-14 Thread Zhao Chenhui
On Sat, Aug 11, 2012 at 08:19:43AM -0500, Tabi Timur-B04825 wrote: On Tue, Aug 7, 2012 at 3:43 AM, Zhao Chenhui chenhui.z...@freescale.com wrote: + return -EINVAL; + + prop = of_get_property(clk_np, fsl,pmcdr-mask, NULL); + if (!prop) { + ret

Re: [PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-14 Thread Zhao Chenhui
On Sat, Aug 11, 2012 at 08:19:43AM -0500, Tabi Timur-B04825 wrote: On Tue, Aug 7, 2012 at 3:43 AM, Zhao Chenhui chenhui.z...@freescale.com wrote: +int mpc85xx_pmc_set_wake(struct device *dev, bool enable) +{ + int ret = 0; + struct device_node *clk_np; + const u32

[PATCH v2 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-10 Thread Zhao Chenhui
-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jerry Huang Signed-off-by: Zhao Chenhui CC: Scott Wood --- v2: * use get/put_online_cpus() to disable/enable cpu hotplug. arch/powerpc/platforms/85xx/Makefile |1 + arch/powerpc/platforms/85xx/cpufreq-jog.c | 388

Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-10 Thread Zhao Chenhui
On Tue, Aug 07, 2012 at 04:43:25PM +0800, Zhao Chenhui wrote: > The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. > Therefore, the related functions should be exported. > > Signed-off-by: Zhao Chenhui > --- > include/linux/cpu.h |4 >

Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-10 Thread Zhao Chenhui
On Tue, Aug 07, 2012 at 04:43:25PM +0800, Zhao Chenhui wrote: The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. Therefore, the related functions should be exported. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- include/linux/cpu.h |4 1 files

[PATCH v2 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-10 Thread Zhao Chenhui
-by: Dave Liu dave...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Jerry Huang chang-ming.hu...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com CC: Scott Wood scottw...@freescale.com --- v2: * use get/put_online_cpus() to disable/enable cpu hotplug. arch

Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-08 Thread Zhao Chenhui
On Wed, Aug 08, 2012 at 11:43:22AM +0530, Srivatsa S. Bhat wrote: > On 08/07/2012 11:21 PM, Kumar Gala wrote: > > > > On Aug 7, 2012, at 3:43 AM, Zhao Chenhui wrote: > > > >> The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. > >>

Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-08 Thread Zhao Chenhui
On Wed, Aug 08, 2012 at 11:43:22AM +0530, Srivatsa S. Bhat wrote: On 08/07/2012 11:21 PM, Kumar Gala wrote: On Aug 7, 2012, at 3:43 AM, Zhao Chenhui wrote: The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. Therefore, the related functions should be exported

[PATCH] mpc85xx_defconfig: add VIA PATA support for MPC85xxCDS

2012-08-07 Thread Zhao Chenhui
Signed-off-by: Zhao Chenhui --- Replace this patch "mpc85xx_defconfig: add IDE support for MPC85xxCDS". arch/powerpc/configs/mpc85xx_defconfig |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/power

[PATCH 1/4] powerpc/85xx: add sleep and deep sleep support

2012-08-07 Thread Zhao Chenhui
of Linux Power Management. Command to enter sleep mode. echo standby > /sys/power/state Command to enter deep sleep mode. echo mem > /sys/power/state Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Jerry Huang Cc: Scott Wood Signed-off-by: Zhao C

[PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-07 Thread Zhao Chenhui
Add APIs for setting wakeup source and lossless Ethernet in low power modes. These APIs can be used by wake-on-packet feature. Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Zhao Chenhui --- arch/powerpc/sysdev/fsl_pmc.c | 77

[PATCH 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-07 Thread Zhao Chenhui
-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jerry Huang Signed-off-by: Zhao Chenhui CC: Scott Wood --- arch/powerpc/platforms/85xx/Makefile |1 + arch/powerpc/platforms/85xx/cpufreq-jog.c | 388 + arch/powerpc/platforms/Kconfig| 11 + arch

[PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-07 Thread Zhao Chenhui
The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. Therefore, the related functions should be exported. Signed-off-by: Zhao Chenhui --- include/linux/cpu.h |4 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/include/linux/cpu.h b/include/linux

[PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

2012-08-07 Thread Zhao Chenhui
The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily. Therefore, the related functions should be exported. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- include/linux/cpu.h |4 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/include/linux

[PATCH 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-07 Thread Zhao Chenhui
-by: Dave Liu dave...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Jerry Huang chang-ming.hu...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com CC: Scott Wood scottw...@freescale.com --- arch/powerpc/platforms/85xx/Makefile |1 + arch/powerpc

[PATCH 2/4] fsl_pmc: Add API to enable device as wakeup event source

2012-08-07 Thread Zhao Chenhui
Add APIs for setting wakeup source and lossless Ethernet in low power modes. These APIs can be used by wake-on-packet feature. Signed-off-by: Dave Liu dave...@freescale.com Signed-off-by: Li Yang le...@freescale.com Signed-off-by: Jin Qing b24...@freescale.com Signed-off-by: Zhao Chenhui

[PATCH 1/4] powerpc/85xx: add sleep and deep sleep support

2012-08-07 Thread Zhao Chenhui
-by: Jerry Huang chang-ming.hu...@freescale.com Cc: Scott Wood scottw...@freescale.com Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/Kconfig |2 +- arch/powerpc/include/asm/cacheflush.h |2 + arch/powerpc/kernel/Makefile |1 + arch/powerpc

[PATCH] mpc85xx_defconfig: add VIA PATA support for MPC85xxCDS

2012-08-07 Thread Zhao Chenhui
Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- Replace this patch mpc85xx_defconfig: add IDE support for MPC85xxCDS. arch/powerpc/configs/mpc85xx_defconfig |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc

Re: [PATCH v8 5/7] powerpc/85xx: add sleep and deep sleep support

2012-08-02 Thread Zhao Chenhui
On Tue, Jul 31, 2012 at 09:15:33AM -0500, Kumar Gala wrote: > > On Jul 20, 2012, at 7:42 AM, Zhao Chenhui wrote: > > > In sleep PM mode, the clocks of e500 core and unused IP blocks is > > turned off. IP blocks which are allowed to wake up the processor > > are s

Re: [PATCH] powerpc/smp: Do not disable IPI interrupts during suspend

2012-08-02 Thread Zhao Chenhui
On Sat, Jul 28, 2012 at 08:20:31AM +1000, Benjamin Herrenschmidt wrote: > On Fri, 2012-07-27 at 16:58 -0500, Kumar Gala wrote: > > On Jul 20, 2012, at 7:47 AM, Zhao Chenhui wrote: > > > > > During suspend, all interrupts including IPI will be disabled. In this >

Re: [PATCH] powerpc/smp: Do not disable IPI interrupts during suspend

2012-08-02 Thread Zhao Chenhui
On Sat, Jul 28, 2012 at 08:20:31AM +1000, Benjamin Herrenschmidt wrote: On Fri, 2012-07-27 at 16:58 -0500, Kumar Gala wrote: On Jul 20, 2012, at 7:47 AM, Zhao Chenhui wrote: During suspend, all interrupts including IPI will be disabled. In this case, the suspend process will hang

Re: [PATCH v8 5/7] powerpc/85xx: add sleep and deep sleep support

2012-08-02 Thread Zhao Chenhui
On Tue, Jul 31, 2012 at 09:15:33AM -0500, Kumar Gala wrote: On Jul 20, 2012, at 7:42 AM, Zhao Chenhui wrote: In sleep PM mode, the clocks of e500 core and unused IP blocks is turned off. IP blocks which are allowed to wake up the processor are still running. Some Freescale chips

Re: [PATCH] mpc85xx_defconfig: add IDE support for MPC85xxCDS

2012-07-23 Thread Zhao Chenhui
On Fri, Jul 20, 2012 at 03:09:00PM +0100, Alan Cox wrote: > On Fri, 20 Jul 2012 20:45:25 +0800 > Zhao Chenhui wrote: > > > Add IDE support for MPC85xxCDS. > > > > Signed-off-by: Zhao Chenhui > > --- > > arch/powerpc/configs/mpc85xx_defconfig |2 ++ &

Re: [PATCH] mpc85xx_defconfig: add IDE support for MPC85xxCDS

2012-07-23 Thread Zhao Chenhui
On Fri, Jul 20, 2012 at 03:09:00PM +0100, Alan Cox wrote: On Fri, 20 Jul 2012 20:45:25 +0800 Zhao Chenhui chenhui.z...@freescale.com wrote: Add IDE support for MPC85xxCDS. Signed-off-by: Zhao Chenhui chenhui.z...@freescale.com --- arch/powerpc/configs/mpc85xx_defconfig |2

[PATCH] pm: add power node to dts

2012-07-20 Thread Zhao Chenhui
The Power Management device tree stub indicated that the platform supports Power Management feature. Signed-off-by: Zhao Chenhui --- arch/powerpc/boot/dts/fsl/mpc8536si-post.dtsi | 14 ++- arch/powerpc/boot/dts/fsl/mpc8544si-post.dtsi |2 + arch/powerpc/boot/dts/fsl/mpc8548si

[PATCH] gianfar: add support for wake-on-packet

2012-07-20 Thread Zhao Chenhui
standby > /sys/power/state or echo mem > /sys/power/state Ping from PC host to wake up the station: ping 10.193.20.169 Signed-off-by: Dave Liu Signed-off-by: Jin Qing Signed-off-by: Li Yang Signed-off-by: Zhao Chenhui Acked-by: Andy Fleming --- drivers/net/ethernet/freescale/gia

[PATCH] powerpc/smp: Do not disable IPI interrupts during suspend

2012-07-20 Thread Zhao Chenhui
During suspend, all interrupts including IPI will be disabled. In this case, the suspend process will hang in SMP. To prevent this, pass the flag IRQF_NO_SUSPEND when requesting IPI irq. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/kernel/smp.c |2 +- 1 files changed

[PATCH] mpc85xx_defconfig: add IDE support for MPC85xxCDS

2012-07-20 Thread Zhao Chenhui
Add IDE support for MPC85xxCDS. Signed-off-by: Zhao Chenhui --- arch/powerpc/configs/mpc85xx_defconfig |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig index 03ee911..45eda33 100644

[PATCH v8 3/7] powerpc/85xx: implement hardware timebase sync

2012-07-20 Thread Zhao Chenhui
Do hardware timebase sync. Firstly, stop all timebases, and transfer the timebase value of the boot core to the other core. Finally, start all timebases. Only apply to dual-core chips, such as MPC8572, P2020, etc. Signed-off-by: Zhao Chenhui Signed-off-by: Li Yang --- arch/powerpc/include/asm

[PATCH v8 4/7] powerpc/85xx: add HOTPLUG_CPU support

2012-07-20 Thread Zhao Chenhui
and 36-bit physical address. Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Zhao Chenhui --- arch/powerpc/Kconfig |6 ++- arch/powerpc/include/asm/cacheflush.h |2 + arch/powerpc/include/asm/smp.h|1 + arch/powerpc/kernel/head_fsl_booke.S | 28

[PATCH v8 6/7] fsl_pmc: Add API to enable device as wakeup event source

2012-07-20 Thread Zhao Chenhui
Add APIs for setting wakeup source and lossless Ethernet in low power modes. These APIs can be used by wake-on-packet feature. Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Zhao Chenhui --- arch/powerpc/sysdev/fsl_pmc.c | 77

[PATCH v8 7/7] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-07-20 Thread Zhao Chenhui
-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jerry Huang Signed-off-by: Zhao Chenhui CC: Scott Wood --- arch/powerpc/platforms/85xx/Makefile |1 + arch/powerpc/platforms/85xx/cpufreq-jog.c | 388 + arch/powerpc/platforms/Kconfig| 11 + arch

[PATCH v8 5/7] powerpc/85xx: add sleep and deep sleep support

2012-07-20 Thread Zhao Chenhui
of Linux Power Management. Command to enter sleep mode. echo standby > /sys/power/state Command to enter deep sleep mode. echo mem > /sys/power/state Signed-off-by: Dave Liu Signed-off-by: Li Yang Signed-off-by: Jin Qing Signed-off-by: Jerry Huang Cc: Scott Wood Signed-off-by: Zhao C

[PATCH v8 2/7] powerpc/smp: add generic_set_cpu_up() to set cpu_state as CPU_UP_PREPARE

2012-07-20 Thread Zhao Chenhui
In the case of cpu hotplug, the cpu_state should be set to CPU_UP_PREPARE when kicking cpu. Otherwise, the cpu_state is always CPU_DEAD after calling generic_set_cpu_dead(), which makes the delay in generic_cpu_die() not happen. Signed-off-by: Zhao Chenhui --- arch/powerpc/include/asm/smp.h

[PATCH v8 1/7] powerpc/smp: use a struct epapr_spin_table to replace macros

2012-07-20 Thread Zhao Chenhui
Signed-off-by: Zhao Chenhui --- arch/powerpc/platforms/85xx/smp.c | 46 ++-- 1 files changed, 23 insertions(+), 23 deletions(-) diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index ff42490..4827709 100644 --- a/arch/powerpc

[PATCH v8 0/7] power management patch set

2012-07-20 Thread Zhao Chenhui
Changes for v8: * Separated the cpu hotplug patch into three patches, as follows [PATCH v8 1/7] powerpc/smp: use a struct epapr_spin_table to replace macros [PATCH v8 2/7] powerpc/smp: add generic_set_cpu_up() to set cpu_state as CPU_UP_PREPARE [PATCH v8 4/7] powerpc/85xx: add HOTPLUG_CPU

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