Hello Wolfram,
Wolfram Sang wrote:
On Wed, Oct 07, 2009 at 08:40:37AM +0200, Heiko Schocher wrote:
- serial Console on PSC1
- 64MB SDRAM
- MTD CFI Flash
- Ethernet FEC
- IDE support
Signed-off-by: Heiko Schocher h...@denx.de
Sorry for finding things incrementally, but I think there is
- serial Console on PSC1
- 64MB SDRAM
- MTD CFI Flash
- Ethernet FEC
- IDE support
Signed-off-by: Heiko Schocher h...@denx.de
Reviewed-by: Wolfram Sang w.s...@pengutronix.de
---
- based on:
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git next
- checked with:
$
Some toolchains dislike nested function definition, so we define function match
outside of of_phy_find_device.
Signed-off-by: Jérôme Pouiller j...@sysmic.org
---
drivers/of/of_mdio.c | 13 +++--
1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/of/of_mdio.c
From: Jérôme Pouiller j...@sysmic.org
Date: Thu, 8 Oct 2009 10:34:23 +0200
Some toolchains dislike nested function definition, so we define function
match
outside of of_phy_find_device.
Signed-off-by: Jérôme Pouiller j...@sysmic.org
Acked-by: David S. Miller da...@davemloft.net
I did some grep on codebase. I have not found any other instances of
nested functions, but my regexps are not enough to be 100% sure.
On Wednesday 07 October 2009 18:23:04 v...@vsbe.com wrote:
Guys, are there other instances of nested C functions in the codebase
or was this the first attempt?
Hi
Please consider this for inclusion into the testing tree.
This patchset introduces cpuidle infrastructure to POWER, prototyping
for pSeries, and also does a major refactoring of current x86 idle
power management and a cleanup of cpuidle infrastructure.
Earlier discussions on the same can be
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch cleans up drivers/cpuidle/cpuidle.c
Earlier cpuidle assumed pm_idle as the default idle loop. Break that
assumption and make it more generic. cpuidle_idle_call() which is the
main idle loop of cpuidle is to be called by
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
Implement a list based registering mechanism for architectures which
have multiple sets of idle routines which are to be registered.
Currently, in x86 it is done by merely setting pm_idle = idle_routine
and managing this pm_idle
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch cleans up x86 of all instances of pm_idle.
pm_idle which was earlier called from cpu_idle() idle loop
is replaced by cpuidle_idle_call.
x86 also registers to cpuidle when the idle routine is selected,
by populating the
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch enables the cpuidle option in Kconfig for pSeries.
Currently cpuidle infrastructure is enabled only for x86 and ARM.
This code is almost completely borrowed from x86 to enable
cpuidle for pSeries.
Signed-off-by: Arun R
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch removes the routines, pseries_shared_idle_sleep and
pseries_dedicated_idle_sleep, since this is implemented as a part
of arch/powerpc/platform/pseries/processor_idle.c
Also, similar to x86, call cpuidle_idle_call from
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
In arch/powerpc/kernel/idle.c create a default_idle() routine by moving
the failover condition of the cpu_idle() idle loop. This is needed by
cpuidle infrastructure to call default_idle when other idle routines
are not yet
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch creates arch/powerpc/platforms/pseries/processor_idle.c,
which implements the cpuidle infrastructure for pseries.
It implements a pseries_cpuidle_loop() which would be the main idle loop
called from cpu_idle(). It makes
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
This patch enables default_idle when power_save=off kernel boot
option is specified.
Earlier, this was done by setting ppc_md.power_save = NULL and hence
HMT_low() and HMT_very_low() was called. Now this is defined under
On Thu, 2009-10-08 at 15:20 +0530, Arun R Bharadwaj wrote:
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
Implement a list based registering mechanism for architectures which
have multiple sets of idle routines which are to be registered.
Currently, in x86 it is done by
* Peter Zijlstra a.p.zijls...@chello.nl [2009-10-08 12:36:02]:
On Thu, 2009-10-08 at 15:20 +0530, Arun R Bharadwaj wrote:
* Arun R Bharadwaj a...@linux.vnet.ibm.com [2009-10-08 15:18:28]:
Implement a list based registering mechanism for architectures which
have multiple sets of idle
On Thu, 2009-10-08 at 16:12 +0530, Arun R Bharadwaj wrote:
So cpuidle didn't already have a list of idle functions it takes an
appropriate one from?
No.. As of now, cpuidle supported only one _set_ of idle states that
can be registered. So in this one set, it would choose the
On Thu, 2009-10-08 at 16:31 +0530, Arun R Bharadwaj wrote:
* Peter Zijlstra a.p.zijls...@chello.nl [2009-10-08 12:50:33]:
On Thu, 2009-10-08 at 16:12 +0530, Arun R Bharadwaj wrote:
So cpuidle didn't already have a list of idle functions it takes an
appropriate one from?
* Peter Zijlstra a.p.zijls...@chello.nl [2009-10-08 13:25:10]:
On Thu, 2009-10-08 at 16:31 +0530, Arun R Bharadwaj wrote:
* Peter Zijlstra a.p.zijls...@chello.nl [2009-10-08 12:50:33]:
On Thu, 2009-10-08 at 16:12 +0530, Arun R Bharadwaj wrote:
So cpuidle didn't already have a
Some OF platform drivers are missing module device tables, so they won't
load automatically on boot. This patch fixes the issue by adding proper
MODULE_DEVICE_TABLE() macros to the drivers.
Signed-off-by: Anton Vorontsov avoront...@ru.mvista.com
---
drivers/net/can/sja1000/sja1000_of_platform.c
On Thu, 2009-10-08 at 17:31 +0530, Arun R Bharadwaj wrote:
Uhm, no, it would mean ACPI putting its idle routines on the same level
as all others.
Putting them all on the same level would mean, we need an
enable/disable routine to enable only the currently active routines.
What's this
Some of the EMAC V4 implementations support 16K Tx FIFOs. This
patch adds support for this functionality and fixes typos in the
Tx FIFO size error messages.
Signed-off-by: Dave Mitchell dmitch...@appliedmicro.com
Acked-by: Prodyut Hazarika phazar...@appliedmicro.com
Acked-by: Victor Gallardo
Adding tx/rx-fifo-size-gige to EMAC fields for evaluation kit DTS
files where appropriate.
Signed-off-by: Dave Mitchell dmitch...@appliedmicro.com
Acked-by: Prodyut Hazarika phazar...@appliedmicro.com
Acked-by: Victor Gallardo vgalla...@appliedmicro.com
Acked-by: Loc Ho l...@appliedmicro.com
---
* Gerald Schaefer (gera...@linux.vnet.ibm.com) wrote:
Hi,
I am currently working on the s390 port for the cmm + hotplug
patch, and I'm a little confused about the memory allocation
policy, see below. Is it correct that the balloon cannot grow
into ZONE_MOVABLE, while the pages for the
8xx sometimes need to load a invalid/non-present TLBs in
it DTLB asm handler.
These must be invalidated separaly as linux mm don't.
---
arch/powerpc/mm/fault.c |8 +++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index
This is an assembler version to fixup DAR not being set
by dcbX, icbi instructions. There are two versions, one
uses selfmodifing code, the other uses a
jump table but is much bigger(default).
---
arch/powerpc/kernel/head_8xx.S | 146 +++-
1 files changed, 145
dcbz, dcbf, dcbi, dcbst and icbi do not set DAR when they
cause a DTLB Error. Dectect this by tagging DAR with 0x00f0
at every exception exit that modifies DAR.
Test for DAR=0x00f0 in DataTLBError and bail
to handle_page_fault().
---
arch/powerpc/kernel/head_8xx.S | 15 ++-
1 files
As Anton introduced archdata support, I wondered if this is a suitable way to
handle the platform_data/devicetree_property-dualism (at least for some
drivers).
If considered suitable, I would document the bindings properly. I really think
that pagesize deserves its own property as it is specific
On Thu, Oct 08, 2009 at 04:04:32PM +0200, Wolfram Sang wrote:
As Anton introduced archdata support, I wondered if this is a suitable way to
handle the platform_data/devicetree_property-dualism (at least for some
drivers).
Yes, we handle OF in a similar way for mmc_spi driver. Though,
[...]
On Thu, Oct 8, 2009 at 8:04 AM, Wolfram Sang w.s...@pengutronix.de wrote:
As Anton introduced archdata support, I wondered if this is a suitable way to
handle the platform_data/devicetree_property-dualism (at least for some
drivers).
I think in general, this is the right direction; but I'm not
We noticed that recent kernels didn't boot on our 1GHz Canyonlands 460EX
boards anymore. As it seems, patch 8d165db1 [powerpc: Improve
decrementer accuracy] introduced this problem. The routine div_sc()
overflows with shift = 32 resulting in this incorrect setup:
time_init: decrementer frequency
Enabling function graph causes oops due to usage of LOAD_REG_IMMEDIATE().
As explained by Ben the usage of LOAD_REG_IMMEDIATE generates relocs that are
not supported when CONFIG_RELOCATABLE is set.
Switch to LOAD_REG_ADDR().
Signed-off-by : Sachin Sant sach...@in.ibm.com
---
Enabling function
On Thu, Oct 8, 2009 at 8:33 AM, Anton Vorontsov
avoront...@ru.mvista.com wrote:
On Thu, Oct 08, 2009 at 04:04:32PM +0200, Wolfram Sang wrote:
As Anton introduced archdata support, I wondered if this is a suitable way to
handle the platform_data/devicetree_property-dualism (at least for some
On Thu, Oct 08, 2009 at 08:53:46AM -0600, Grant Likely wrote:
[...]
Please don't. It is such a small amount of code,
It's *always* a small amound of code, at a start. Then we get
floppy disk drivers and the tty layer. ;-)
[...]
Driver writers shouldn't have to
write anything more than a tiny
On Thu, Oct 8, 2009 at 9:10 AM, Anton Vorontsov
avoront...@ru.mvista.com wrote:
On Thu, Oct 08, 2009 at 08:53:46AM -0600, Grant Likely wrote:
[...]
Please don't. It is such a small amount of code,
It's *always* a small amound of code, at a start. Then we get
floppy disk drivers and the tty
Some of the EMAC V4 implementations support 16K Tx FIFOs. This
patch adds support for this functionality and fixes typos in the
Tx FIFO size error messages.
Signed-off-by: Dave Mitchell dmitch...@appliedmicro.com
Acked-by: Prodyut Hazarika phazar...@appliedmicro.com
Acked-by: Victor Gallardo
Adding tx/rx-fifo-size-gige to EMAC fields for evaluation kit DTS
files where appropriate.
Signed-off-by: Dave Mitchell dmitch...@appliedmicro.com
Acked-by: Prodyut Hazarika phazar...@appliedmicro.com
Acked-by: Victor Gallardo vgalla...@appliedmicro.com
Acked-by: Loc Ho l...@appliedmicro.com
---
Hi,
I am currently working on the s390 port for the cmm + hotplug
patch, and I'm a little confused about the memory allocation
policy, see below. Is it correct that the balloon cannot grow
into ZONE_MOVABLE, while the pages for the balloon page list
can?
Robert Jennings wrote:
@@ -110,6 +125,9
On Wed, 7 Oct 2009, David Miller wrote:
From: Chris Newport c...@netunix.com
Date: Thu, 8 Oct 2009 02:29:25 +0100 (BST)
Sun4d has never had SMP support and
Wrong.
this is apparantly problematic due to Cray interlectual property
causing a lack of bus documentation.
XBUS documentation is
Ahem, that's pretty bad :'( How comes noone uses that ?
- Romain
On Wed, Oct 7, 2009 at 6:33 PM, Olof Johansson o...@lixom.net wrote:
On Wed, Oct 07, 2009 at 01:25:13PM +0200, Romain Goyet wrote:
On Tue, Oct 6, 2009 at 6:07 PM, Olof Johansson o...@lixom.net wrote:
Yeah, I had one but I
On Wed, Sep 16, 2009 at 03:02:33PM -, nanda wrote:
Hi,
Iam getting the below crash on new board tested on MPC832x using
linux-2.6.24, please let me what could be the problem on the same.
Does it infer any information on the exception?
Please try running the latest kernel.
# Oops:
Benjamin Herrenschmidt b...@kernel.crashing.org wrote on 07/10/2009 23:18:05:
On Wed, 2009-10-07 at 22:46 +0200, Joakim Tjernlund wrote:
8xx sometimes need to load a invalid/non-present TLBs in
it DTLB asm handler.
These must be invalidated separaly as linux mm don't.
not sure about the
On Thu, 2009-10-08 at 16:49 +0200, Stefan Roese wrote:
We noticed that recent kernels didn't boot on our 1GHz Canyonlands 460EX
boards anymore. As it seems, patch 8d165db1 [powerpc: Improve
decrementer accuracy] introduced this problem. The routine div_sc()
overflows with shift = 32 resulting
On Oct 8, 2009, at 12:22 PM, Joakim Tjernlund wrote:
hare are comments in the kernel that dcbst wrongly
generates TLB Errors with store set on 8xx. Is this really so?
Should dcbst always trap as a load?
There are many comments written about 8xx as various
behavior was discovered. Worse,
On Thu, 2009-10-08 at 13:11 -0700, Dan Malek wrote:
There are many comments written about 8xx as various
behavior was discovered. Worse, some of these details
would be different among the different processor versions.
You need to be careful and test as many different part
versions as
On Thu, 2009-10-08 at 08:45 +0200, Joakim Tjernlund wrote:
Generic code should sort it out in handle_mm_fault() (or earlier if it
can't find a VMA at all).
How can it? You need to know more that just read and write.
It does. It's going to look for the VMA, which will tell it what is
No, this goes beyond PPC/OF. The real issue is that it is no longer a
safe assumption that pdata will be a static data structure in platform
code. The number of possible data sources is going to get larger, not
smaller. OF is just one. UEFI is another. Translating that data
into pdata
Hoy Dan !
While you are around ... I have a question :-)
Do you happen to remember what the story is with the invalidation of
unpopulated (aka invalid) entries ?
IE. We create those in the 8xx TLB miss when the PTE is !present (or the
PMD is absent). Those then cause a TLB error on the next
Dan Malek d...@embeddedalley.com wrote on 08/10/2009 22:11:07:
On Oct 8, 2009, at 12:22 PM, Joakim Tjernlund wrote:
hare are comments in the kernel that dcbst wrongly
generates TLB Errors with store set on 8xx. Is this really so?
Should dcbst always trap as a load?
Hi, been a long
On Thu, 2009-10-08 at 21:22 +0200, Joakim Tjernlund wrote:
Benjamin Herrenschmidt b...@kernel.crashing.org wrote on 07/10/2009
23:18:05:
On Wed, 2009-10-07 at 22:46 +0200, Joakim Tjernlund wrote:
8xx sometimes need to load a invalid/non-present TLBs in
it DTLB asm handler.
These
One could try clearing the store bit in the page fault handler, but then
that might cause a loop.
Not sure it has any practical meaning though.
Anyhow, you are welcome to have a look at the patches I have been tossing out.
The store bit in do_page_fault() is -very- important (and the only
I think in general, this is the right direction; but I'm not convinced
that the right pattern or form has been found yet. What I don't like
on this particular patch is that it still hooks of-specific stuff into
an arbitrary point in the probe routine.
I'd like to see some pattern for
On Thu, 2009-10-08 at 15:24 +0200, Joakim Tjernlund wrote:
DataTLBError currently does:
if ((err 0x0200) == 0)
DSI();
This won't handle a store with no valid translation.
Change this to
if ((err 0x4800) != 0)
DSI();
that is, branch to DSI if either !permission or
On Thu, 2009-10-08 at 15:24 +0200, Joakim Tjernlund wrote:
+#define _PAGE_RW 0x0400 /* lsb PP bits, inverted in HW */
+#define _PAGE_USER 0x0800 /* msb PP bits */
+ /* r10=(r10~_PAGE_PRESENT)|((r10_PAGE_ACCESSED)5) */
+ rlwimi. r10, r10, 27, 31, 31
+ beq-cr0, 2f /*
Hi Ben.
On Oct 8, 2009, at 1:28 PM, Benjamin Herrenschmidt wrote:
While you are around ... I have a question :-)
I'll try. Many brain cells have been replaced or lost
over the years :-)
Do you happen to remember what the story is with the invalidation of
unpopulated (aka invalid) entries
On Thu, Oct 08, 2009 at 09:48:50AM -0600, Grant Likely wrote:
On Thu, Oct 8, 2009 at 9:10 AM, Anton Vorontsov
[...]
It's *always* a small amound of code, at a start. Then we get
floppy disk drivers and the tty layer. ;-)
Holy straw man argument Batman!
But the focus is still on creating
On Thu, 2009-10-08 at 15:08 -0700, Dan Malek wrote:
Hi Ben.
On Oct 8, 2009, at 1:28 PM, Benjamin Herrenschmidt wrote:
While you are around ... I have a question :-)
I'll try. Many brain cells have been replaced or lost
over the years :-)
Replaced ? You lucky ! I only lose mines :-)
Benjamin Herrenschmidt b...@kernel.crashing.org wrote on 08/10/2009 23:04:03:
On Thu, 2009-10-08 at 15:24 +0200, Joakim Tjernlund wrote:
+#define _PAGE_RW 0x0400 /* lsb PP bits, inverted in HW */
+#define _PAGE_USER 0x0800 /* msb PP bits */
+ /*
On Thu, Oct 8, 2009 at 2:48 PM, Wolfram Sang w.s...@pengutronix.de wrote:
I think in general, this is the right direction; but I'm not convinced
that the right pattern or form has been found yet. What I don't like
on this particular patch is that it still hooks of-specific stuff into
an
Benjamin Herrenschmidt b...@kernel.crashing.org wrote on 09/10/2009 00:23:48:
On Thu, 2009-10-08 at 15:08 -0700, Dan Malek wrote:
Hi Ben.
On Oct 8, 2009, at 1:28 PM, Benjamin Herrenschmidt wrote:
While you are around ... I have a question :-)
I'll try. Many brain cells have been
On Fri, 2 Oct 2009 13:44:58 -0500
Robert Jennings r...@linux.vnet.ibm.com wrote:
Memory balloon drivers can allocate a large amount of memory which
is not movable but could be freed to accomodate memory hotplug remove.
Prior to calling the memory hotplug notifier chain the memory in the
On Oct 8, 2009, at 1:37 PM, Joakim Tjernlund wrote:
Hi, been a long time since I heard from you :)
Yeah, hiding among other projects :-)
Anyhow, you are welcome to have a look at the patches I have been
tossing out.
I've been looking, but since I'm not familiar with the current
VM
Thus spake Joakim Tjernlund (joakim.tjernl...@transmode.se):
So here we go again. This time I am
fairly confindent I got most things correct :)
Also manged to use even less instructions in the
TLB Miss handlers.
Scott and Rex, forget previous versions and
try this one out.
This patch set
On Fri, 2009-10-09 at 00:44 +0200, Joakim Tjernlund wrote:
accessed == 1 and present = 0 is impossible, right?
So basically just copy over accessed to present and
linux mm set both when trapping to C.
No, when present = 0, then the rest of the PTE can contain unrelated
things, you can't trust
On Fri, 2009-10-09 at 01:01 +0200, Joakim Tjernlund wrote:
Ok, that's my understanding too and I think we had the tlbie in
update_mmu_cache to do the trick, though the comment is misleading
making it think that the only reason it's there is for the dcbst
problem. At least that's my
On Thu, 2009-10-08 at 17:36 -0700, Dan Malek wrote:
On Oct 8, 2009, at 3:23 PM, Benjamin Herrenschmidt wrote:
• Reference and change bit updates—The MPC850 does not generate an
exception for
an R (reference) bit update. In fact, there is no entry for an R
bit in the TLB.
On Fri, 2 Oct 2009 13:44:58 -0500
Robert Jennings r...@linux.vnet.ibm.com wrote:
Memory balloon drivers can allocate a large amount of memory which
is not movable but could be freed to accomodate memory hotplug remove.
Prior to calling the memory hotplug notifier chain the memory in the
On Thu, 2009-10-08 at 11:32 -0500, Dave Mitchell wrote:
Some of the EMAC V4 implementations support 16K Tx FIFOs. This
patch adds support for this functionality and fixes typos in the
Tx FIFO size error messages.
Acked-by: Benjamin Herrenschmidt b...@kernel.crashing.org
---
Signed-off-by:
On Thu, 2009-10-08 at 11:33 -0500, Dave Mitchell wrote:
Adding tx/rx-fifo-size-gige to EMAC fields for evaluation kit DTS
files where appropriate.
Signed-off-by: Dave Mitchell dmitch...@appliedmicro.com
Acked-by: Prodyut Hazarika phazar...@appliedmicro.com
Acked-by: Victor Gallardo
Will check this tomorrow.
And while doing this and figuring the pro/cons of those methods, I stumbled
over this commit:
gpio: pca953x: Get platform_data from OpenFirmware
(1965d30356c1c65660ba3330927671cfe81acdd5)
It looks to me that it missed all people involved in
On Thursday 08 October 2009 22:12:56 Benjamin Herrenschmidt wrote:
On Thu, 2009-10-08 at 16:49 +0200, Stefan Roese wrote:
We noticed that recent kernels didn't boot on our 1GHz Canyonlands
460EX
boards anymore. As it seems, patch 8d165db1 [powerpc: Improve
decrementer accuracy] introduced
On Thu, Oct 8, 2009 at 11:14 PM, Wolfram Sang w.s...@pengutronix.de wrote:
Will check this tomorrow.
And while doing this and figuring the pro/cons of those methods, I stumbled
over this commit:
gpio: pca953x: Get platform_data from OpenFirmware
From: Benjamin Herrenschmidt b...@kernel.crashing.org
Date: Fri, 09 Oct 2009 13:15:02 +1100
On Thu, 2009-10-08 at 11:32 -0500, Dave Mitchell wrote:
Some of the EMAC V4 implementations support 16K Tx FIFOs. This
patch adds support for this functionality and fixes typos in the
Tx FIFO size
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