On Tue, 2015-01-20 at 16:40 -0500, Dave Jones wrote:
> On Wed, Jan 14, 2015 at 10:44:31AM +1100, Michael Ellerman wrote:
>
> > > Also, I would like to see the test results reports using
> > > kselftest.h - it can be separate patch in the interest of
> > > getting tests in.
> >
> > Sorry but
On 20.01.2015 20:52, luigi burdo wrote:
> Hello all LinuxPPc Developer,
> need to report a issue that im facing from kernel 3.16 and up.
>
> The fans of powermac g5 quad start boosting like a turbo jet after the
> system is
> been loaded and up.
> Usually this become after about 30-60 seconds when
On Tue, Jan 20, 2015 at 11:15:54PM -0200, Fabio Estevam wrote:
> Not related to your series, but do you have a patch for imx6sx-sdb.dts
> that adds sai support?
>
> In the FSL version they use 'fsl,sdma-event-remap' property to specify
> the SAI sdma channels, but this is not present in mainline?
Hello Yuan-Tian,
On 01/20/2015 07:40 PM, Tang Yuantian-B29983 wrote:
> Hi Emil,
>
> Thanks for fixing those warnings. The patch set you based on is merged.
> I sent another two patches and one of them got merged. You probably need to
> rebase your patches.
> My patch link:
> http://patchwork.oz
On Tue, Jan 20, 2015 at 08:21:18PM +0800, Zidan Wang wrote:
> +static int fsl_sai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq)
> + if ((tx && sai->synchronous[TX]) || (!tx && !sai->synchronous[RX])) {
> + regmap_update_bits(sai->regmap, FSL_SAI_RCR2,
> +
Which platform are you trying to use this on? Can this be initialized by core
pll function core_pll_init()?
I just saw most of this function is silimar to the core_pll_init().
Thanks,
Yuantian
> -Original Message-
> From: Emil Medve [mailto:emilian.me...@freescale.com]
> Sent: Tuesday, J
Pranith Kumar writes:
> When CONFIG_PRINTK=n, log_buf_addr_get() returns NULL and log_buf_len_get()
> return 0. Check for these return values and skip registering the dump buffer.
>
> Signed-off-by: Pranith Kumar
> CC: Michael Ellerman
(investigating what would occur on systems with current fir
Hi Jason,
> > diff --git a/arch/powerpc/platforms/pseries/lpar.c
> > b/arch/powerpc/platforms/pseries/lpar.c index 469751d..14ac1ad
> > 100644 --- a/arch/powerpc/platforms/pseries/lpar.c
> > +++ b/arch/powerpc/platforms/pseries/lpar.c
> > @@ -27,6 +27,7 @@
> > #include
> > #include
> > #inclu
HAVE_PERF_EVENTS_NMI is used for two things - the oprofile NMI timer
and the hardlockup detector.
Create HAVE_OPROFILE_NMI_TIMER so an architecture can select them
separately. On ppc64 we want to add the hardlockup detector, but not
the oprofile NMI timer fallback.
Signed-off-by: Anton Blanchard
The hard lockup detector uses a PMU event as a periodic NMI to
detect if we are stuck (where stuck means no timer interrupts have
occurred).
Ben's rework of the ppc64 soft disable code has made ppc64 PMU
exceptions a partial NMI. They can get disabled if an external
interrupt comes in, but otherwi
On Wed, 2015-01-21 at 13:32 +1100, Cyril Bur wrote:
> The need to handle ibm,suspend_me specially from within ppc_rtas has left an
> endian bug exposed as rtas_ibm_suspend_me actually performs HCALLs and should
> have its params in CPU endian.
That needs a much better explanation.
Key points:
-
On Tue, 2015-01-20 at 17:05 +0530, Aneesh Kumar K.V wrote:
> This enables us to understand how many hash fault we are taking
> when running benchmarks.
>
> For ex:
> -bash-4.2# ./perf stat -e powerpc:hash_fault -e page-faults
> /tmp/ebizzy.ppc64 -S 30 -P -n 1000
> ...
>
> Performance counter
The need to handle ibm,suspend_me specially from within ppc_rtas has left an
endian bug exposed as rtas_ibm_suspend_me actually performs HCALLs and should
have its params in CPU endian.
Have ppc_rtas send the params correctly and also interpret the result
correctly.
Removed the convoluted use of
Now we could pass PCI domain combined with bus number
in u32 argu. Because in arm/arm64, PCI domain number
is assigned by pci_bus_assign_domain_nr(). So we leave
pci_scan_root_bus() and pci_create_root_bus() in arm/arm64
unchanged. A new function pci_host_assign_domain_nr()
will be introduced for a
Pcibios_root_bridge_prepare() in powerpc is used
to set root bus speed. Rename it to
pcibios_set_root_bus_speed() for better readability.
Signed-off-by: Yijing Wang
CC: Benjamin Herrenschmidt
CC: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/include/asm/machdep.h |2 +-
arch/powerpc/
Now we could use pci_scan_root_bridge() to scan
pci buses, provide powerpc specific pci_host_bridge_ops.
Suggested-by: Arnd Bergmann
Signed-off-by: Yijing Wang
CC: Benjamin Herrenschmidt
CC: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/include/asm/machdep.h |2 +-
arch/powerpc/kern
Hi Emil,
Thanks for fixing those warnings. The patch set you based on is merged.
I sent another two patches and one of them got merged. You probably need to
rebase your patches.
My patch link:
http://patchwork.ozlabs.org/patch/429257/
http://patchwork.ozlabs.org/patch/429258/
Thanks,
Yuantian
>
Add a testcase for the new ppc64 memcmp.
Signed-off-by: Anton Blanchard
---
.../testing/selftests/powerpc/stringloops/Makefile | 21 +
.../selftests/powerpc/stringloops/asm/ppc_asm.h| 7 ++
.../selftests/powerpc/stringloops/memcmp_64.S | 1 +
.../selftests/powerpc/stringloops/t
I noticed ksm spending quite a lot of time in memcmp on a large
KVM box. The current memcmp loop is very unoptimised - byte at a
time compares with no loop unrolling. We can do much much better.
Optimise the loop in a few ways:
- Unroll the byte at a time loop
- For large (at least 32 byte) comp
Hi Zidan,
On Tue, Jan 20, 2015 at 10:21 AM, Zidan Wang wrote:
> Add sai master mode support.
> Add tdm slots support.
> Add Right-J mode support.
>
> Zidan Wang (3):
> SoC: fsl_sai: add sai master mode support
> ASoC: fsl_sai: Add support for tdm slots operation
> ASoC: fsl_sai: Add support
On Tue, 2015-01-20 at 14:03 -0600, Kim Phillips wrote:
> Fix this:
>
> CC arch/powerpc/sysdev/fsl_pci.o
> arch/powerpc/sysdev/fsl_pci.c: In function 'fsl_pcie_check_link':
> arch/powerpc/sysdev/fsl_pci.c:91:1: error: the frame size of 1360 bytes is
> larger than 1024 bytes [-Werror=frame-l
On Tue, 20 Jan 2015 15:01:50 -0800 j...@joshtriplett.org wrote:
> On Tue, Jan 20, 2015 at 02:02:00PM -0600, Kim Phillips wrote:
> > It's possible to configure DEBUG_PAGEALLOC without PAGE_POISONING on
> > ppc. Fix building the generic kernel_map_pages() implementation in
> > this case:
> >
> >
On Wed, Jan 21, 2015 at 09:56:07AM +1100, Gavin Shan wrote:
>On Tue, Jan 20, 2015 at 10:28:16AM +0100, Benjamin Herrenschmidt wrote:
>>On Mon, 2015-01-19 at 09:47 +1100, Gavin Shan wrote:
>>> On pseries platform, the EEH reset backend pseries_eeh_reset() can
>>> be called in atomic context as follo
When CONFIG_PRINTK=n, log_buf_addr_get() returns NULL and log_buf_len_get()
return 0. Check for these return values and skip registering the dump buffer.
Signed-off-by: Pranith Kumar
CC: Michael Ellerman
---
arch/powerpc/platforms/powernv/opal.c | 6 ++
1 file changed, 6 insertions(+)
diff
PMCs on PowerPC increases towards 0x8000 and triggers an overflow
interrupt when the msb is set to collect a sample. Therefore, to setup
for the next sample collection, pmu_start should set the pmc value to
0x8000 - left instead of left which incorrectly delays the next
overflow interrupt.
On Tue, Jan 20, 2015 at 02:02:00PM -0600, Kim Phillips wrote:
> It's possible to configure DEBUG_PAGEALLOC without PAGE_POISONING on
> ppc. Fix building the generic kernel_map_pages() implementation in
> this case:
>
> LD init/built-in.o
> mm/built-in.o: In function `free_pages_prepare':
>
On Tue, Jan 20, 2015 at 10:28:16AM +0100, Benjamin Herrenschmidt wrote:
>On Mon, 2015-01-19 at 09:47 +1100, Gavin Shan wrote:
>> On pseries platform, the EEH reset backend pseries_eeh_reset() can
>> be called in atomic context as follows. For this case, we should
>> call udelay() instead of msleep(
On Wed, Jan 14, 2015 at 10:44:31AM +1100, Michael Ellerman wrote:
> > Also, I would like to see the test results reports using
> > kselftest.h - it can be separate patch in the interest of
> > getting tests in.
>
> Sorry but kselftest.h doesn't do anything useful for us.
>
> We have exist
Fix this:
CC arch/powerpc/sysdev/fsl_pci.o
arch/powerpc/sysdev/fsl_pci.c: In function 'fsl_pcie_check_link':
arch/powerpc/sysdev/fsl_pci.c:91:1: error: the frame size of 1360 bytes is
larger than 1024 bytes [-Werror=frame-larger-than=]
when configuring FRAME_WARN, by converting the alloca
It's possible to configure DEBUG_PAGEALLOC without PAGE_POISONING on
ppc. Fix building the generic kernel_map_pages() implementation in
this case:
LD init/built-in.o
mm/built-in.o: In function `free_pages_prepare':
mm/page_alloc.c:770: undefined reference to `.kernel_map_pages'
mm/built-in
From: Igal Liberman
Signed-off-by: Igal Liberman
This patch is based on https://patchwork.ozlabs.org/patch/430966/
---
drivers/clk/clk-ppc-corenet.c | 250 +
1 file changed, 250 insertions(+)
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk
Hello all LinuxPPc Developer,
need to report a issue that im facing from kernel 3.16 and up.
The fans of powermac g5 quad start boosting like a turbo jet after the system
is
been loaded and up.
Usually this become after about 30-60 seconds when the system is loaded.
This issue start with Xorg l
Hello all LinuxPPc Developer,
need to report a issue that im facing from kernel 3.16 and up.
The fans of powermac g5 quad start boosting like a turbo jet after the system
is
been loaded and up.
Usually this become after about 30-60 seconds when the system is loaded.
This issue start with Xorg l
slots and slot width is set from set_dai_tdm_slot in machine driver.
We should calculate the actual slots per channel using slots/channels.
When using tdm slots, we should generate bclk depends channels, slots
and slot width. And there may be unused BCLK cycles before each LRCLK
transition.
Set T
Add Right-J mode and set TCR5 FBT bit to let data right justify.
Signed-off-by: Zidan Wang
---
sound/soc/fsl/fsl_sai.c | 14 +++---
sound/soc/fsl/fsl_sai.h | 1 +
2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 4c50
Add sai master mode support.
Add tdm slots support.
Add Right-J mode support.
Zidan Wang (3):
SoC: fsl_sai: add sai master mode support
ASoC: fsl_sai: Add support for tdm slots operation
ASoC: fsl_sai: Add support for Right-J mode
sound/soc/fsl/fsl_sai.c | 164 +
When sai works on master mode, set its bit clock and frame clock.
SAI has 4 MCLK source, bus clock, MCLK1, MCLK2 and MCLK3. fsl_sai_set_bclk
will select proper MCLK source, then calculate and set the bit clock divider.
After fsl_sai_set_bclk, enable the selected mclk in hw_params(), and add
hw_fr
> Von: Scott Wood [scottw...@freescale.com]
> Gesendet: Dienstag, 20. Januar 2015 08:38
> An: Markus Stockhausen
> Cc: Michael Ellerman; linuxppc-dev@lists.ozlabs.org
> Betreff: Re: AW: How to make use of SPE instructions?
> ...
> > I did some tests with the tcrypt module and I get a hashing speed
From: leroy
> Le 20/01/2015 12:09, David Laight a écrit :
> > From Christophe Leroy
> >> Having a macro will help keep clear code.
> > It might remove an #if but it doesn't really help.
> > All it means is that anyone reading the code has to hunt for
> > the definition before proceeding.
> >
> >
This enables us to understand how many hash fault we are taking
when running benchmarks.
For ex:
-bash-4.2# ./perf stat -e powerpc:hash_fault -e page-faults /tmp/ebizzy.ppc64
-S 30 -P -n 1000
...
Performance counter stats for '/tmp/ebizzy.ppc64 -S 30 -P -n 1000':
1,10,04,075 powe
> > Right, and I'm not saying it should be, just move the existing logic
> > into the release callback, and the code flow should be the same and we
> > don't end up with an "empty" release callback.
But as Russell says, even if we don't have the empty callback, we still
create the problem shown b
Le 20/01/2015 12:09, David Laight a écrit :
From Christophe Leroy
Having a macro will help keep clear code.
It might remove an #if but it doesn't really help.
All it means is that anyone reading the code has to hunt for
the definition before proceeding.
Some comment about what (and why) the
On 01/20/2015 11:15 AM, Michael Ellerman wrote:
> On Mon, 2015-19-01 at 11:32:51 UTC, Preeti U Murthy wrote:
>> The device tree now exposes the residency values for different idle states.
>> Read
>> these values instead of calculating residency from the latency values. The
>> values
>> exposed in
On 01/20/2015 04:51 PM, Thomas Gleixner wrote:
> On Mon, 19 Jan 2015, Preeti U Murthy wrote:
>> An idle cpu enters cpu_idle_poll() if it is set in the
>> tick_broadcast_force_mask.
>> This is so that it does not incur the overhead of entering idle states when
>> it is expected
>> to be woken up a
On Mon, 19 Jan 2015, Preeti U Murthy wrote:
> An idle cpu enters cpu_idle_poll() if it is set in the
> tick_broadcast_force_mask.
> This is so that it does not incur the overhead of entering idle states when
> it is expected
> to be woken up anytime then through a broadcast IPI. The condition tha
From Christophe Leroy
> Having a macro will help keep clear code.
It might remove an #if but it doesn't really help.
All it means is that anyone reading the code has to hunt for
the definition before proceeding.
Some comment about what (and why) the extra code is needed
might help.
...
> +
> +#i
Today if the cpu handling broadcasting of wakeups goes offline, the job of
broadcasting is handed over to another cpu in the CPU_DEAD phase. The CPU_DEAD
notifiers are run only after the offline cpu sets its state as CPU_DEAD.
Meanwhile, the kthread doing the offline is scheduled out while waiting
Change-Id: Iac11ed95f274485a86d2c11f32a3dc502bcd020f
Signed-off-by: Emil Medve
---
drivers/clk/clk-ppc-corenet.c | 85 +++
1 file changed, 85 insertions(+)
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk-ppc-corenet.c
index 91816b1..ff425e1 10
On Tue, 20 Jan 2015, Preeti U Murthy wrote:
> --- a/kernel/time/tick-broadcast.c
> +++ b/kernel/time/tick-broadcast.c
> @@ -675,8 +675,8 @@ static void broadcast_move_bc(int deadcpu)
>
> if (!bc || !broadcast_needs_cpu(bc, deadcpu))
> return;
> - /* This moves the broadcas
CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
+ rc = of_property_read_string_index(np, "clock-output-names",
+ 0, &clk_name);
CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
+ pr_err("Could not register clock pro
WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message
+ if (!parent_names) {
+ pr_err("%s: could not allocate parent_names\n", __func__);
WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message
+ if (!cmux_clk) {
+ pr_err("%s: could not
On Tue, Jan 20, 2015 at 03:12:56PM +0800, Greg Kroah-Hartman wrote:
> On Tue, Jan 20, 2015 at 08:05:20AM +0100, Lars-Peter Clausen wrote:
> > On 01/20/2015 02:41 AM, Greg Kroah-Hartman wrote:
> > >On Mon, Jan 19, 2015 at 11:04:27PM +, Russell King - ARM Linux wrote:
> > >>On Tue, Jan 20, 2015 a
Where the memset() is not necessary
Signed-off-by: Emil Medve
---
drivers/clk/clk-ppc-corenet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk-ppc-corenet.c
index d84a7f0..91816b1 100644
--- a/drivers/clk/clk-ppc-corenet.c
+++
Change-Id: I1a80ad7b9f6854791bd270b746f93a91439155a6
Signed-off-by: Emil Medve
---
arch/powerpc/configs/corenet32_smp_defconfig | 1 +
arch/powerpc/configs/corenet64_smp_defconfig | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/powerpc/configs/corenet32_smp_defconfig
b/arch/powerpc/co
drivers/clk/clk-ppc-corenet.c:63:22: warning: symbol 'cmux_ops' was not
declared. Should it be static?
Signed-off-by: Emil Medve
---
drivers/clk/clk-ppc-corenet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk-ppc-corenet.c
in
WARNING:ALLOC_WITH_MULTIPLY: Prefer kcalloc over kzalloc with multiply
+ subclks = kzalloc(sizeof(struct clk *) * count, GFP_KERNEL);
Signed-off-by: Emil Medve
---
drivers/clk/clk-ppc-corenet.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/clk-ppc-core
CHECK:ALLOC_SIZEOF_STRUCT: Prefer kzalloc(sizeof(*cmux_clk)...) over
kzalloc(sizeof(struct cmux_clk)...)
+ cmux_clk = kzalloc(sizeof(struct cmux_clk), GFP_KERNEL);
CHECK:ALLOC_SIZEOF_STRUCT: Prefer kzalloc(sizeof(*onecell_data)...) over
kzalloc(sizeof(struct clk_onecell_data)...)
+ o
These patches are based on:
http://patchwork.ozlabs.org/patch/417297
http://patchwork.ozlabs.org/patch/417295
http://patchwork.ozlabs.org/patch/417292
The first 5 patches below are checkpatch/static analysis fixes
Emil Medve (8):
clk: ppc-corenet: Fix checkpatch type PARENTHESIS_ALIGNMENT
cl
CR only needs to be preserved when checking if we are handling a kernel address.
So we can preserve CR in a register:
- In ITLBMiss, check is done only when CONFIG_MODULES is defined. Otherwise we
don't need to do anything at all with CR.
- We use r10, then we reload SRR0/MD_EPN into r10 when CR is
By default, TASK_SIZE is set to 0x8000 for PPC_8xx, which is most likely
sufficient for most cases. However, kernel configuration allows to set TASK_SIZE
to another value, so the 8xx shall handle it.
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 25
Having a macro will help keep clear code.
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 18 --
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index a1571b3..0658
In order to be able to reduce scope during which CR is saved, we take
CR saving/restoring out of exception PROLOG and EPILOG
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/powe
We now have SPRG2 available as in it not used anymore for saving CR, so we don't
need to crash DAR anymore for saving r3 for CPU6 ERRATA handling.
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 9 -
1 file changed, 4 insertions(+), 5 deletions(-)
di
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index a485ad7..a1571b3 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++
L1 base address is now aligned so we can insert L1 index into r11 directly and
then preserve r10
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 34 +++---
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/arch/powerp
Kernel MMU handling code handles validity of entries via _PMD_PRESENT which
corresponds to V bit in MD_TWC and MI_TWC. When the V bit is not set, MPC8xx
triggers TLBError exception. So we don't have to check that and branch ourself
to TLBError. We can set TLB entries with non present entries, remov
All accessed to PGD entries are done via 0(r11).
By using lower part of swapper_pg_dir as load index to r11, we can remove the
ori instruction.
Signed-off-by: Christophe Leroy
---
v2: fixed/added comments to explain what is the real content of M_TW
arch/powerpc/kernel/head_8xx.S | 35 +
When pages are not 4K, PGDIR table is allocated with kmalloc(). In order to
optimise TLB handlers, aligned memory is needed. kmalloc() doesn't provide
aligned memory blocks, so lets use a kmem_cache pool instead.
Signed-off-by: Christophe Leroy
---
v2: changed to apply cleanly to linux-next (due
Since commit 33fb845a6f01 ("powerpc/8xx: Don't use MD_TWC for walk"), MD_EPN and
MD_TWC are not writen anymore in FixupDAR so saving r3 has become useless.
Signed-off-by: Christophe Leroy
---
v2: no change
arch/powerpc/kernel/head_8xx.S | 6 --
1 file changed, 6 deletions(-)
diff --git a/
This patchset provides a further optimisation of TLB handling in the 8xx.
Main changes are based on:
- Using processor handling of PGD/PTE Validity bits instead of testing ourselves
the entries validity
- Aligning PGD address to allow direct bit manipulation
- Not saving registers like CR when not
On Mon, 2015-01-19 at 09:47 +1100, Gavin Shan wrote:
> On pseries platform, the EEH reset backend pseries_eeh_reset() can
> be called in atomic context as follows. For this case, we should
> call udelay() instead of msleep() to avoid context switching.
>
> drivers/scsi/ipr.c::ipr_reset_slot_r
Regaeds,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, January 20, 2015 9:44 AM
> To: Liberman Igal-B31950
> Cc: linuxppc-dev@lists.ozlabs.org; Medve Emilian-EMMEDVE1
> Subject: Re: [PATCH] powerpc/dts: Update platform PLL node
>
> On Mon, 2015-01-12 at
Today if the cpu handling broadcasting of wakeups goes offline, the job of
broadcasting is handed over to another cpu in the CPU_DEAD phase. The CPU_DEAD
notifiers are run only after the offline cpu sets its state as CPU_DEAD.
Meanwhile, the kthread doing the offline is scheduled out while waiting
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