On Wed, Feb 15, 2012 at 3:40 PM, Qiang Liu wrote:
> Adds support for interrupt coalescing feature to reduce interrupt events.
> Provides a mechanism of adjusting coalescing count and timeout tick by sysfs
> at runtime, so that tradeoff of latency and CPU load can be made depending
> on different a
Adds support for interrupt coalescing feature to reduce interrupt events.
Provides a mechanism of adjusting coalescing count and timeout tick by sysfs
at runtime, so that tradeoff of latency and CPU load can be made depending
on different applications.
Signed-off-by: Qiang Liu
---
change for V3
> -Original Message-
> From: linux-ide-ow...@vger.kernel.org [mailto:linux-ide-
> ow...@vger.kernel.org] On Behalf Of Li Yang
> Sent: Wednesday, February 15, 2012 3:22 PM
> To: Liu Qiang-B32616
> Cc: jgar...@pobox.com; linux-...@vger.kernel.org; linuxppc-
> d...@lists.ozlabs.org; linux-ker.
On Wed, Feb 15, 2012 at 1:49 PM, Qiang Liu wrote:
Hi Liu Qiang,
The patch is fine except for the title and comment. It's too vague to
say I/O load balancing. You need explicit description like "add
interrupt coalescing support" as title.
> Reduce interrupt signals through reset Interrupt Coal
From: Zhicheng Fan
Signed-off-by: Zhicheng Fan
---
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 78 -
1 files changed, 77 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index e95aef7
From: Zhicheng Fan
The mpc85xx_rdb and mpc85xx_mds have commom define of signal multiplex for qe,
so
they need to go in common header, the patch abstract them to fsl_guts.h
Signed-off-by: Zhicheng Fan
---
arch/powerpc/include/asm/fsl_guts.h | 20 +++-
arch/powerpc/plat
Reduce interrupt signals through reset Interrupt Coalescing Control Reg.
Provide dynamic method to adjust interrupt signals and timer ticks by sysfs.
It is a tradeoff for different applications.
Signed-off-by: Qiang Liu
---
change for V2
support dynamic config interrupt coalescing registe
From: Rusty Russell
This has been obsolescent for a while; time for the final push.
Signed-off-by: Rusty Russell
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/platforms/wsp/smp.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
pci_probe_only is set on ppc64 to prevent resource re-allocation
by the core. It's meant to be used in very specific circumstances
such as when operating under a hypervisor that may prevent such
re-allocation.
Instead of default to 1, we make it default to 0 and explcitiely
set it in the few cases
The current quirk is a header quirk which runs after
pci_setup_device(). This means that we can warnings
from the later due to an unrecognized class code,
and some parts of pci_dev aren't setup properly.
On the other hand, we somewhat rely on that later on
as this causes "pci_read_bases" to not be
Upstream changes to the way PHB resources are registered
broke the resource fixup for FSL boards.
We can no longer rely on the resource pointer array for the PHB's
pci_bus structure, so let's leave it alone and go straight for
the PHB resources instead. This also makes the code generally
more read
On Sat, Dec 10, 2011 at 12:19:59PM +0530, Mahesh J Salgaonkar wrote:
> The most of the code implementation has been adapted from phyp assisted dump
> implementation written by Linas Vepstas and Manish Ahuja.
When you repost the series, please be explicit about what the
relationship between the ne
> > > + if (!(in_be32(non_ehci + FSL_SOC_USB_CTRL) & CTRL_PHY_CLK_VALID))
> > {
> > > + printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n");
> > > + return -1;
> >
> > Please return a proper error code. -ENODEV ?
>
> [Shengzhou] Ok, updated in v2, thanks.
> >
Note that I ju
Since we are heading towards removing the Legacy iSeries platform, start
by no longer building it for ppc64_defconfig.
Signed-off-by: Stephen Rothwell
---
arch/powerpc/configs/ppc64_defconfig |5 -
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/configs/ppc64_
The current implementation of lazy interrupts handling has some
issues that this tries to address.
Except on iSeries, we don't do the various workarounds we need to
do on re-enable when returning from an interrupt, which can do an
implicit re-enable, and thus we may still lose or get delayed
decre
On Tue, 2012-02-14 at 17:46 +1100, Benjamin Herrenschmidt wrote:
> The current implementation of lazy interrupts handling has some
> issues that this tries to address.
>
> Except on iSeries, we don't do the various workarounds we need to
> do on re-enable when returning from an interrupt, which ca
On Tue, 2012-02-14 at 15:18 +0530, Srivatsa S. Bhat wrote:
> > 2. Just below that we have smp_cpus_done(setup_max_cpus); and this
> > translates
> > to native_smp_cpus_done() under x86, which calls impress_friends().
> > And that means, the bogosum calculation and the total activated processor
>
On 2/14/2012 11:57 AM, Srivatsa S. Bhat wrote:
>> In addition to this, the reality is that the whole "bring cpus up"
>> sequence needs to be changed; the current one is very messy and requires
>> the hotplug lock for the whole bring up of each individual cpu... which
>> is a very unfortunate desig
On Wed, 2012-02-15 at 01:27 +0530, Srivatsa S. Bhat wrote:
> [Small note, it appears as if the last 2 of your replies to this
> thread
> didn't reach LKML.]
because he used html mail, LKML drops those.. IIRC you can tell K-9 not
to use html cruft, but then I stopped trying to pretend you can ema
[Small note, it appears as if the last 2 of your replies to this thread
didn't reach LKML.]
On 02/14/2012 08:01 PM, Arjan van de Ven wrote:
> one coments; will comment more when I get to work
>
> On Tue, Feb 14, 2012 at 1:48 AM, Srivatsa S. Bhat
>
> 7. And whichever code between smp_init() an
On 02/14/2012 03:18 PM, Srivatsa S. Bhat wrote:
> On 02/14/2012 01:47 PM, Srivatsa S. Bhat wrote:
>
>> On 01/31/2012 09:54 PM, Arjan van de Ven wrote:
>>
>>> From ee65be59057c920042747d46dc174c5a5a56c744 Mon Sep 17 00:00:00 2001
>>> From: Arjan van de Ven
>>> Date: Mon, 30 Jan 2012 20:44:51 -080
Only two architectures use the OF node reference counting and reclaim bits.
There is no need to compile it for the rest of the PowerPC platforms or for
any of the other architectures. This patch makes iseries and pseries
select CONFIG_OF_DYNAMIC, and makes it default to off for everything else.
I
Its more than acpi ... machine checks can do it too etc
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Peter Zijlstra wrote:
On Tue, 2012-02-14 at 06:31 -0800, Arjan van de Ven wrote:
>
> frankly, such code HAS to worry about cpus going online and offline
> even today;
On Tue, 2012-02-14 at 06:31 -0800, Arjan van de Ven wrote:
>
> frankly, such code HAS to worry about cpus going online and offline
> even today; the firmware, at least on X86, can start taking cores
> offline/online once ACPI is initialized (as controlled by a data
> center manager from outsid
one coments; will comment more when I get to work
On Tue, Feb 14, 2012 at 1:48 AM, Srivatsa S. Bhat
7. And whichever code between smp_init() and async_synchronize_full() didn't
>
> care about CPU hotplug till today but depended on all cpus being online
> must
> suddenly start worrying about CPU H
From: Matt Fleming
As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block
is pending in the shared queue.
Also, use the new helper function introduced in
From: Zhicheng Fan
Signed-off-by: Zhicheng Fan
---
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 78 -
1 files changed, 77 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index e95aef7
From: Zhicheng Fan
The mpc85xx_rdb and mpc85xx_mds have commom define of signal multiplex for qe,
so
they need to go in common header, the patch abstract them to fsl_guts.h
Signed-off-by: Zhicheng Fan
---
arch/powerpc/include/asm/fsl_guts.h | 18 ++
arch/powerpc/platfo
On 02/14/2012 01:47 PM, Srivatsa S. Bhat wrote:
> On 01/31/2012 09:54 PM, Arjan van de Ven wrote:
>
>> From ee65be59057c920042747d46dc174c5a5a56c744 Mon Sep 17 00:00:00 2001
>> From: Arjan van de Ven
>> Date: Mon, 30 Jan 2012 20:44:51 -0800
>> Subject: [PATCH] smp: Start up non-boot CPUs asynchr
hi all,
ignore v4 patche for qe
--
Zhicheng Fan
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Linuxppc-dev@lists.ozlabs.org
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From: Zhicheng Fan
The mpc85xx_rdb and mpc85xx_mds have commom define of signal multiplex for qe,
so
they need to go in common header, the patch abstract them to fsl_guts.h
Signed-off-by: Zhicheng Fan
---
arch/powerpc/include/asm/fsl_guts.h | 18 ++
arch/powerpc/platfo
From: Zhicheng Fan
Signed-off-by: Zhicheng Fan
---
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 78 -
1 files changed, 77 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index e95aef7
When build i.mx platform with imx_v6_v7_defconfig, and after adding
USB Gadget support, it has below build error:
CC drivers/usb/host/fsl-mph-dr-of.o
drivers/usb/host/fsl-mph-dr-of.c: In function 'fsl_usb2_device_register':
drivers/usb/host/fsl-mph-dr-of.c:97: error: 'struct pdev_archdata'
ha
PSC9131RDB is a Freescale reference design board for PSC9131 SoC.The PSC9131 is
integrated SoC that targets Femto base station market. It combines Power
Architecture e500v2 and DSP StarCore SC3850 core technologies with MAPLE-B2F
baseband acceleration processing elements.
-The PSC9131 SoC incl
When build i.mx platform with imx_v6_v7_defconfig, and after adding
USB Gadget support, it has below build error:
CC drivers/usb/host/fsl-mph-dr-of.o
drivers/usb/host/fsl-mph-dr-of.c: In function 'fsl_usb2_device_register':
drivers/usb/host/fsl-mph-dr-of.c:97: error: 'struct pdev_archdata'
ha
On 01/31/2012 09:54 PM, Arjan van de Ven wrote:
> From ee65be59057c920042747d46dc174c5a5a56c744 Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven
> Date: Mon, 30 Jan 2012 20:44:51 -0800
> Subject: [PATCH] smp: Start up non-boot CPUs asynchronously
>
> The starting of the "not first" CPUs actuall
From: Zhicheng Fan
P1025RDB Overview
--
1Gbyte DDR3 SDRAM
32 Mbyte NAND flash
16Mbyte NOR flash
16 Mbyte SPI flash
SD connector to interface with the SD memory card
Real-time clock on I2C bus
PCIe:
- x1 PCIe slot
- x1 mini-PCIe slot
10/100/1000 BaseT Ethernet ports:
- eTSEC1, RG
From: Zhicheng Fan
Signed-off-by: Zhicheng Fan
---
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 22 ++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index d54772e..e95ae
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