Re: [RFC PATCH v2 08/11] powerpc: Add "mask_lvl" paramater to MASKABLE_* macros

On Monday 01 August 2016 10:51 AM, Nicholas Piggin wrote: On Mon, 1 Aug 2016 00:36:26 +0530 Madhavan Srinivasan wrote: Make it explicit the interrupt masking level supported by a gievn interrupt handler. Patch correspondingly extends the MASKABLE_* macros with an

Re: [RFC PATCH v2 09/11] powerpc: Add support to mask perf interrupts

On Mon, 1 Aug 2016 00:36:27 +0530 Madhavan Srinivasan wrote: > /* > * flags for paca->soft_enabled > */ > #define IRQ_DISABLE_LEVEL_NONE 0 > #define IRQ_DISABLE_LEVEL_LINUX 1 > +#define IRQ_DISABLE_LEVEL_PMU2 > + >

Re: [RFC PATCH v2 08/11] powerpc: Add "mask_lvl" paramater to MASKABLE_* macros

On Mon, 1 Aug 2016 00:36:26 +0530 Madhavan Srinivasan wrote: > Make it explicit the interrupt masking level supported > by a gievn interrupt handler. Patch correspondingly > extends the MASKABLE_* macros with an addition's parameter. > "mask_lvl" parameter is passed to

Re: [PATCH v2 3/3] powerpc: Convert fsl_rstcr_restart to a reset handler

On Thu, 28 Jul 2016 16:07:18 -0700 Andrey Smirnov wrote: > Convert fsl_rstcr_restart into a function to be registered with > register_reset_handler(). > > Signed-off-by: Andrey Smirnov > --- > > Changes since v1: > > -

Re: [PATCH v2 2/3] powerpc: Call chained reset handlers during reset

On Thu, 28 Jul 2016 16:07:17 -0700 Andrey Smirnov wrote: > Call out to all restart handlers that were added via > register_restart_handler() API when restarting the machine. > > Signed-off-by: Andrey Smirnov > --- > > No changes compared to

Re: [PATCH v2 1/3] powerpc: Factor out common code in setup-common.c

On Thu, 28 Jul 2016 16:07:16 -0700 Andrey Smirnov wrote: > Factor out a small bit of common code in machine_restart(), > machine_power_off() and machine_halt(). > > Signed-off-by: Andrey Smirnov > --- > > No changes compared to v1. > >

[PATCH v4 2/3] irqchip/qeic: merge qeic init code from platforms to a common function

The codes of qe_ic init from a variety of platforms are redundant, merge them to a common function and put it to irqchip/irq-qeic.c For non-p1021_mds mpc85xx_mds boards, use "qe_ic_init(np, 0, qe_ic_cascade_low_mpic, qe_ic_cascade_high_mpic);" instead of "qe_ic_init(np, 0,

[PATCH v4 3/3] irqchip/qeic: merge qeic_of_init into qe_ic_init

qeic_of_init just get device_node of qeic from dtb and call qe_ic_init, pass the device_node to qe_ic_init. So merge qeic_of_init into qe_ic_init to get the qeic node in qe_ic_init. Signed-off-by: Zhao Qiang --- Changes for v2: - modify subject and commit msg

[PATCH v4 1/3] irqchip/qeic: move qeic driver from drivers/soc/fsl/qe

move the driver from drivers/soc/fsl/qe to drivers/irqchip, merge qe_ic.h and qe_ic.c into irq-qeic.c. Signed-off-by: Zhao Qiang --- Changes for v2: - modify the subject and commit msg Changes for v3: - merge .h file to .c, rename it with irq-qeic.c Changes

[PATCH] powerpc/perf: fix wrong event codes in power9-event-list

Signed-off-by: Madhavan Srinivasan --- arch/powerpc/perf/power9-events-list.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h index cda6fcb809ca..6447dc1c3d89

[RFC PATCH v2 11/11] powerpc: rewrite local_t using soft_irq

Local atomic operations are fast and highly reentrant per CPU counters. Used for percpu variable updates. Local atomic operations only guarantee variable modification atomicity wrt the CPU which owns the data and these needs to be executed in a preemption safe way. Here is the design of this

[RFC PATCH v2 10/11] powerpc: Support to replay PMIs

Code to replay the Performance Monitoring Interrupts(PMI). In the masked_interrupt handler, for PMIs we reset the MSR[EE] and return. This is due the fact that PMIs are level triggered. In the __check_irq_replay(), we enabled the MSR[EE] which will fire the interrupt for us. Patch also adds a new

[RFC PATCH v2 09/11] powerpc: Add support to mask perf interrupts

To support masking of the PMI interrupts, couple of new interrupt handler macros are added MASKABLE_EXCEPTION_PSERIES_OOL and MASKABLE_RELON_EXCEPTION_PSERIES_OOL. These are needed to include the SOFTEN_TEST and implement the support at both host and guest kernel. Couple of new irq #defs

[RFC PATCH v2 08/11] powerpc: Add "mask_lvl" paramater to MASKABLE_* macros

Make it explicit the interrupt masking level supported by a gievn interrupt handler. Patch correspondingly extends the MASKABLE_* macros with an addition's parameter. "mask_lvl" parameter is passed to SOFTEN_TEST macro to decide on masking the interrupt. Signed-off-by: Madhavan Srinivasan

[RFC PATCH v2 07/11] powerpc: Add new _EXCEPTION_PROLOG_1 macro

To support addition of "mask_level" to MASKABLE_* macros, factor out the EXCPETION_PROLOG_1 macro. Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/exception-64s.h | 30 ++ 1 file changed, 26 insertions(+), 4 deletions(-)

[RFC PATCH v2 06/11] powerpc: Avoid using EXCEPTION_PROLOG_1 macro in MASKABLE_*

Currently we use both EXCEPTION_PROLOG_1 amd __EXCEPTION_PROLOG_1 in the MASKABLE_* macros. As a cleanup, this patch makes MASKABLE_* to use only __EXCEPTION_PROLOG_1. There is no logic change. Signed-off-by: Madhavan Srinivasan ---

[RFC PATCH v2 05/11] powerpc: reverse the soft_enable logic

"paca->soft_enabled" is used as a flag to mask some of interrupts. Currently supported flags values and their details: soft_enabledMSR[EE] 0 0 Disabled (PMI and HMI not masked) 1 1 Enabled "paca->soft_enabled" is initialized to 1 to make the

[RFC PATCH v2 04/11] powerpc: Use set_soft_enabled api to update paca->soft_enabled

Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/kvm_ppc.h | 2 +- arch/powerpc/kernel/irq.c | 2 +- arch/powerpc/kernel/setup_64.c | 4 ++-- arch/powerpc/kernel/time.c | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff

[RFC PATCH v2 02/11] Cleanup to use IRQ_DISABLE_LEVEL_* macros for paca->soft_enabled update

Replace the hardcoded values used when updating paca->soft_enabled with IRQ_DISABLE_LEVEL_* #def. No logic change. Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/exception-64s.h | 2 +- arch/powerpc/include/asm/hw_irq.h| 15 ---

[RFC PATCH v2 03/11] powerpc: move set_soft_enabled()

Move set_soft_enabled() from powerpc/kernel/irq.c to asm/hw_irq.c. this way updation of paca->soft_enabled can be forced wherever possible. Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/hw_irq.h | 6 ++ arch/powerpc/kernel/irq.c | 6 --

[RFC PATCH v2 01/11] Add #defs for paca->soft_enabled flags

Two #defs IRQ_DISABLE_LEVEL_NONE and IRQ_DISABLE_LEVEL_LINUX are added to be used when updating paca->soft_enabled. Signed-off-by: Madhavan Srinivasan --- arch/powerpc/include/asm/hw_irq.h | 7 +++ 1 file changed, 7 insertions(+) diff --git

[RFC PATCH v2 00/11] powerpc: "paca->soft_enabled" based local atomic operation implementation

Local atomic operations are fast and highly reentrant per CPU counters. Used for percpu variable updates. Local atomic operations only guarantee variable modification atomicity wrt the CPU which owns the data and these needs to be executed in a preemption safe way. Here is the design of the

[v4] Fix to avoid IS_ERR_VALUE and IS_ERR abuses on 64bit systems.

IS_ERR_VALUE() assumes that parameter is an unsigned long. It can not be used to check if 'unsigned int' is passed insted. Which tends to reflect an error. In 64bit architectures sizeof (int) == 4 && sizeof (long) == 8. IS_ERR_VALUE(x) is ((x) >= (unsigned long)-4095). IS_ERR_VALUE() of

[PATCH 1/1] wan/fsl_ucc_hdlc: avoid possible NULL pointer dereference

All assignments to components of priv should only occur after the check if prif is NULL. Signed-off-by: Heinrich Schuchardt --- drivers/net/wan/fsl_ucc_hdlc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wan/fsl_ucc_hdlc.c

[pasemi] problem with i2c-pasemi

Here you are: i2c-0i2c Radeon i2c bit bus 0x90 I2C adapter i2c-1i2c Radeon i2c bit bus 0x91 I2C adapter i2c-2i2c Radeon i2c bit bus 0x92 I2C adapter i2c-3i2c Radeon i2c bit bus 0x93 I2C

[GIT PULL] Please pull powerpc/linux.git powerpc-4.8-1 tag

Hi Linus, Please pull powerpc updates for 4.8: The following changes since commit 5edb56491d4812c42175980759da53388e5d86f5:   Linux 4.7-rc3 are available in the git repository at:   git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git tags/powerpc-4.8-1 for you to fetch changes

Re: [pasemi] problem with i2c-pasemi

> 00:1c.2 SMBus: PA Semi, Inc PWRficient SMBus Controller (rev 01) >Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- >Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > SERR- Interrupt: pin A routed to