On Fri, Jun 17, 2016 at 12:54 AM, Luis R. Rodriguez wrote:
> Thou shalt not make firmware calls early on init or probe.
>
> systemd already ripped support out for the usermode helper
> a while ago, there are still users that require the usermode helper,
> however systemd's use of the usermode help
Hi Daniel,
On Wed, Aug 24, 2016 at 12:21:23PM +1000, Daniel Axtens wrote:
> Hi Simon,
>
> > The ckpt_regs usage in gpr32_set_common/gpr32_get_common()
> > will lead to cppcheck error.
> >
> > [arch/powerpc/kernel/ptrace.c:2062]: (error) Uninitialized variable:
> > ckpt_regs
> > [arch/powerpc/kern
On Tue, Aug 23, 2016 at 05:45:04PM -0700, mcg...@kernel.org wrote:
[snip]
> ---
> Documentation/firmware_class/README| 20
> drivers/base/Kconfig | 2 +-
> .../request_firmware-avoid-init-probe-init.cocci | 130
> +
> 3
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/cputable.h | 4 +++-
arch/powerpc/kernel/cputable.c | 19 +++
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/cputable.h
b/arch/powerpc/include/asm/cputable.h
index 82026b41
POWER9 DD1 uses RTS - 28 for the RTS value but other revisions use
RTS - 31. This makes this distinction for the different revisions
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/book3s/64/radix.h | 13 +
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/a
POWER9 DD1 requires pte to be marked invalid (V=0) before updating
it with the new value. This makes this distinction for the different
revisions.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/book3s/32/pgtable.h | 3 +-
arch/powerpc/include/asm/book3s/64/pgtable.h | 5 +-
arch/
Power9 DD1 requires to update the hid0 register when switching from
hash to radix.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/reg.h | 3 +++
arch/powerpc/mm/hash_utils_64.c | 25 +
arch/powerpc/mm/pgtable-radix.c | 28
3 fi
This set optimises the freescale fs_enet ethernet driver:
1/ Merge of RX and TX NAPI functions in order to limit the amount of
interrupts
2/ Do not unmap DMA when packets len is below copybreak, otherwise there
is no benefit in copying the skb instead of allocating a new one
3/ Make copybreak value
Initially, a NAPI TX routine has been implemented separately from
NAPI RX, as done on the freescale/gianfar driver.
By merging NAPI RX and NAPI TX, we reduce the amount of TX completion
interrupts.
Handling of the budget in association with TX interrupts is based on
indications provided at https:
When the length of the packet is below the defined copybreak limit,
the received packet is copied into a newly allocated skb in order
to reuse the skb. This is only interesting if it allow us to avoid
a new DMA mapping. We shall therefore not DMA unmap and remap the
skb->data. Instead, we invalidat
Measurement shows that on a MPC8xx running at 132MHz, the optimal
limit is 112:
* 114 bytes packets are processed in 147 TB ticks with higher copybreak
* 114 bytes packets are processed in 148 TB ticks with lower copybreak
* 128 bytes packets are processed in 154 TB ticks with higher copybreak
* 12
On Wed, 2016-08-24 at 12:36 +0200, Christophe Leroy wrote:
> Initially, a NAPI TX routine has been implemented separately from
> NAPI RX, as done on the freescale/gianfar driver.
>
> By merging NAPI RX and NAPI TX, we reduce the amount of TX completion
> interrupts.
>
> Handling of the budget in
On Wed, 2016-08-24 at 06:07 -0700, Eric Dumazet wrote:
> I am afraid you could live lock here on SMP.
>
> You should make sure you do not loop forever, not assuming cpu is faster
> than NIC.
You are protected by the tx_lock spinlock, but this is fragile as you
could very well remove this spinloc
Le 24/08/2016 à 15:07, Eric Dumazet a écrit :
On Wed, 2016-08-24 at 12:36 +0200, Christophe Leroy wrote:
Initially, a NAPI TX routine has been implemented separately from
NAPI RX, as done on the freescale/gianfar driver.
By merging NAPI RX and NAPI TX, we reduce the amount of TX completion
in
From: Wei Yongjun
Fix to return error code -ENOMEM from the dma_map_single error
handling case instead of 0, as done elsewhere in this function.
Fixes: 032c5e82847a ("Driver for IBM System i/p VNIC protocol")
Signed-off-by: Wei Yongjun
---
drivers/net/ethernet/ibm/ibmvnic.c | 1 +
1 file chang
From: Wei Yongjun
Remove an open coded simple_open() function and replace file
operations references to the function with simple_open()
instead.
Generated by: scripts/coccinelle/api/simple_open.cocci
Signed-off-by: Wei Yongjun
---
drivers/net/ethernet/ibm/ibmvnic.c | 18 ++
1
On 08/19/2016 12:26 AM, Gautham R. Shenoy wrote:
> From: "Gautham R. Shenoy"
>
> Currently all the idle states registered by a cpu-idle driver are
> enabled by default. This patch adds a mechanism which allows the
> driver to hint if an idle-state should start in a disabled state. The
> cpu-idle
On 25/08/16 00:44, Daniel Lezcano wrote:
> On 08/19/2016 12:26 AM, Gautham R. Shenoy wrote:
>> From: "Gautham R. Shenoy"
>>
>> Currently all the idle states registered by a cpu-idle driver are
>> enabled by default. This patch adds a mechanism which allows the
>> driver to hint if an idle-state
On 08/24/2016 04:48 PM, Balbir Singh wrote:
>
>
> On 25/08/16 00:44, Daniel Lezcano wrote:
>> On 08/19/2016 12:26 AM, Gautham R. Shenoy wrote:
>>> From: "Gautham R. Shenoy"
>>>
>>> Currently all the idle states registered by a cpu-idle driver are
>>> enabled by default. This patch adds a mechani
On 08/24/2016 03:36 AM, Christophe Leroy wrote:
> Measurement shows that on a MPC8xx running at 132MHz, the optimal
> limit is 112:
> * 114 bytes packets are processed in 147 TB ticks with higher copybreak
> * 114 bytes packets are processed in 148 TB ticks with lower copybreak
> * 128 bytes packet
Enable sound on PowerBook G4 12".
Signed-off-by: Aaro Koskinen
---
sound/aoa/fabrics/layout.c | 8
sound/aoa/soundbus/i2sbus/core.c | 2 +-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/sound/aoa/fabrics/layout.c b/sound/aoa/fabrics/layout.c
index 8f71f7e..edc8681
On Wed, 2016-08-24 at 20:57 +0300, Aaro Koskinen wrote:
> Enable sound on PowerBook G4 12".
Looks good to me, I assume you tested it and it works :)
johannes
> Signed-off-by: Aaro Koskinen
> ---
> sound/aoa/fabrics/layout.c | 8
> sound/aoa/soundbus/i2sbus/core.c | 2 +-
> 2 fil
Hi,
On Wed, Aug 24, 2016 at 09:43:23PM +0200, Johannes Berg wrote:
> On Wed, 2016-08-24 at 20:57 +0300, Aaro Koskinen wrote:
> > Enable sound on PowerBook G4 12".
>
> Looks good to me, I assume you tested it and it works :)
Yes, I have this laptop in use.
A.
From: Markus Elfring
Date: Wed, 24 Aug 2016 22:26:37 +0200
A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus reuse the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle softwar
On Wed, Aug 24, 2016 at 08:55:55AM +0200, Daniel Vetter wrote:
> On Fri, Jun 17, 2016 at 12:54 AM, Luis R. Rodriguez wrote:
> > Thou shalt not make firmware calls early on init or probe.
<-- snip -->
> > There are 4 offenders at this time:
> >
> > mcgrof@ergon ~/linux-next (git::20160609)$ expor
On 08/24/2016 02:48 PM, Tillmann Heidsieck wrote:
> For systems with >4G of RAM, the current implementation adds a second
> inbound PCIe window starting at 128G this leaves all memory from 4G to
> 128G inaccessible to inbound PCIe transactions.
The second inbound window is at 256G, and it maps all
For systems with >4G of RAM, the current implementation adds a second
inbound PCIe window starting at 128G this leaves all memory from 4G to
128G inaccessible to inbound PCIe transactions. The according errors
can be observed by using the EDAC driver for MPC85XX.
This patch changes this behaviour
Simon Guo writes:
> I think keeping tm_active argument for "ifndef CONFIG_PPC_TRANSACTIONAL_MEM"
> case (with __maybe_unused prefix) will be somehow strange -- Whatever
> value is provided in the caller function for tm_active, programmer might be
> puzzled and cost sometime to think about it.
Any improvement on your ends? Seems -1 is now the quirk. But does your
trackpads work? Did an update after getting a new and the latest released
powerbook up. Also found an interesting interface which can replace our ide
drives, intended for ipod classics, but it can fit in the bay and has msata
in
On Thu, Aug 25, 2016 at 5:09 AM, Mike wrote:
> Any improvement on your ends? Seems -1 is now the quirk. But does your
> trackpads work? Did an update after getting a new and the latest released
> powerbook up. Also found an interesting interface which can replace our ide
> drives, intended for ipo
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 patchs
Replace the hardcoded values used when updating
paca->soft_enabled with IRQ_DISABLE_MASK_* #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 ---
arch/powerpc/include/asm/irqfl
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 not logic change.
Signed-off-by: Madhavan Srinivasan
---
arch/powerpc/include/asm/exception-64s.h | 4 ++--
1 file chan
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 | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/include/asm/hw_irq.h
b/arch/powerpc
Currently soft_enabled is used as the flag to determine
the interrupt state. Patch extends the soft_enabled
to be used as a mask instead of a flag. So, each MASKABLE_*
macro will carry additionaly "bitmask" paramater to specify
the interrupt maskable level.
Signed-off-by: Madhavan Srinivasan
---
Make it explicit the interrupt masking supported
by a gievn interrupt handler. Patch correspondingly
extends the MASKABLE_* macros with an addition's parameter.
"bitmask" parameter is passed to SOFTEN_TEST macro to decide
on masking the interrupt.
Signed-off-by: Madhavan Srinivasan
---
arch/powe
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.
Couple of new irq #defs "PACA_IRQ_PMI" and "SOFTEN_VALUE_0xf0*" added to
use in the exception code to check for PMI interrupts.
Signe
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 patch
Code to replay the Performance Monitoring Interrupts(PMI).
In the masked_interrupt handler, for PMIs we reset the MSR[EE]
and return. In the __check_irq_replay(), replay the PMI interrupt
by calling performance_monitor_common handler.
Patch also adds a new soft_irq_set_mask() to update paca->soft_
Factor out the EXCPETION_PROLOG_1 macro, so that STD_EXCEPTION_*
and MASKABLE_EXCEPTION will have separate version. This is needed
to support addition of new parameter "bitmask" for MASKABLE_* macros
to specify the interrupt mask.
Signed-off-by: Madhavan Srinivasan
---
arch/powerpc/include/asm/e
There are three #ifdef CONFIG_PPC_BOOK3E sections in nohash/64/pgtable.h.
And there should be no configurations possible which use nohash/64/pgtable.h
but don't also enable CONFIG_PPC_BOOK3E.
Suggested-by: Michael Ellerman
Signed-off-by: Rui Teng
---
arch/powerpc/include/asm/nohash/64/pgtable.h
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 --
2 files changed, 6 insert
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 --git a/arch/powerpc/includ
"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 interripts
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