On Thu, Jun 12, 2014 at 02:52:20PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:41PM +0900, Joonsoo Kim wrote:
ppc kvm's cma area management needs alignment constraint on
cma region. So support it to prepare generalization of cma area
management functionality.
Additionally,
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for several pages to reduce management overheads.
So support
On Thu, Jun 12, 2014 at 03:06:10PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for
Hi Srivatsa,
On Sat, Jun 7, 2014 at 7:16 AM, Srivatsa S. Bhat
srivatsa.b...@linux.vnet.ibm.com wrote:
And with the following hunk added (which I had forgotten earlier), it worked
just
fine on powernv :-)
How are the patches coming along?
I just hung a machine here while attempting to kexec.
On Thu, Jun 12, 2014 at 03:43:55PM +0900, Joonsoo Kim wrote:
On Thu, Jun 12, 2014 at 03:06:10PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very
Some people see things like Exception: 501 in stack traces in dmesg
and assume that means that something has gone badly wrong, when in
fact Exception: 501 just means a device interrupt was taken.
This changes Exception to interrupt to make it clearer that we
are just recording the fact of a change
From: Yang Wei wei.y...@windriver.com
The commit b02d735bf was to rearrange the device-tree entries, and
assumed that these entries are sorted in the ascending order. but
acctually when I was validating kexec and kdump, the order of
serial node still is changed. We should not only compare the
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for several pages to reduce management overheads.
So support
On Thu, Jun 12, 2014 at 12:21:43PM +0900, Joonsoo Kim wrote:
Currently, there are two users on CMA functionality, one is the DMA
subsystem and the other is the kvm on powerpc. They have their own code
to manage CMA reserved area even if they looks really similar.
From my guess, it is caused by
On Thu, Jun 12, 2014 at 12:21:45PM +0900, Joonsoo Kim wrote:
We can remove one call sites for clear_cma_bitmap() if we first
call it before checking error number.
Signed-off-by: Joonsoo Kim iamjoonsoo@lge.com
Acked-by: Minchan Kim minc...@kernel.org
--
Kind regards,
Minchan Kim
On Thu, Jun 12, 2014 at 12:21:46PM +0900, Joonsoo Kim wrote:
Conventionally, we put output param to the end of param list.
cma_declare_contiguous() doesn't look like that, so change it.
If you says Conventionally, I'd like to suggest one more thing.
Conventionally, we put 'base' ahead 'size'
On 06/12/2014 03:08 PM, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for several pages to
On Thu, Jun 12, 2014 at 04:08:11PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:42PM +0900, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for
On Thu, Jun 12, 2014 at 04:13:11PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:43PM +0900, Joonsoo Kim wrote:
Currently, there are two users on CMA functionality, one is the DMA
subsystem and the other is the kvm on powerpc. They have their own code
to manage CMA reserved area
On Thu, Jun 12, 2014 at 04:19:31PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:46PM +0900, Joonsoo Kim wrote:
Conventionally, we put output param to the end of param list.
cma_declare_contiguous() doesn't look like that, so change it.
If you says Conventionally, I'd like to
On Thu, Jun 12, 2014 at 12:21:47PM +0900, Joonsoo Kim wrote:
Currently, we should take the mutex for manipulating bitmap.
This job may be really simple and short so we don't need to sleep
if contended. So I change it to spinlock.
I'm not sure it would be good always.
Maybe you remember we
On Thu, Jun 12, 2014 at 04:40:29PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:47PM +0900, Joonsoo Kim wrote:
Currently, we should take the mutex for manipulating bitmap.
This job may be really simple and short so we don't need to sleep
if contended. So I change it to spinlock.
Dne 12.6.2014 04:07, Mike Qiu napsal(a):
This v2 patch is good,
Tested-by: Mike Qiu qiud...@linux.vnet.ibm.com
Thanks. In kbuild.git it goes.
Michal
___
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
binutils knows that a branch to a function descriptor is actually
a branch to the function text. By removing the explicit branch to
dot symbols, we maintain both ABIv1 and ABIv2 compatibility.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kvm/book3s_interrupts.S
On 06/12/2014 11:21 AM, Joonsoo Kim wrote:
We don't need explicit 'CMA:' prefix, since we already define prefix
'cma:' in pr_fmt. So remove it.
And, some logs print function name and others doesn't. This looks
bad to me, so I unify log format to print function name consistently.
Lastly, I
binutils knows that a branch to a function descriptor is actually
a branch to the function text. By removing the explicit branch to
dot symbols, we maintain both ABIv1 and ABIv2 compatibility.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
To establish addressability quickly, ABIv2 requires the target
address of the function being called to be in r12.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
===
---
Both kvmppc_hv_entry_trampoline and kvmppc_entry_trampoline are
assembly functions that are exported to modules and also require
a valid r2.
As such we need to use _GLOBAL_TOC so we provide a global entry
point that establishes the TOC (r2).
Signed-off-by: Anton Blanchard an...@samba.org
---
Hi Joel,
On 06/12/2014 12:09 PM, Joel Stanley wrote:
Hi Srivatsa,
On Sat, Jun 7, 2014 at 7:16 AM, Srivatsa S. Bhat
srivatsa.b...@linux.vnet.ibm.com wrote:
And with the following hunk added (which I had forgotten earlier), it worked
just
fine on powernv :-)
How are the patches coming
On 06/12/2014 02:02 PM, Joonsoo Kim wrote:
On Thu, Jun 12, 2014 at 02:25:43PM +0900, Minchan Kim wrote:
On Thu, Jun 12, 2014 at 12:21:39PM +0900, Joonsoo Kim wrote:
We should free memory for bitmap when we find zone mis-match,
otherwise this memory will leak.
Then, -stable stuff?
I don't
On 06/04/2014 02:18 PM, Anshuman Khandual wrote:
On 06/03/2014 11:33 AM, Anshuman Khandual wrote:
On 05/30/2014 07:12 PM, Aneesh Kumar K.V wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com writes:
This patch enables support for hardware instruction breakpoints on
POWER8 with
the help of
On 06/12/2014 11:21 AM, Joonsoo Kim wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for several pages to reduce management overheads.
So support arbitrary bitmap
On 06/12/2014 11:21 AM, Joonsoo Kim wrote:
Currently, there are two users on CMA functionality, one is the DMA
subsystem and the other is the kvm on powerpc. They have their own code
to manage CMA reserved area even if they looks really similar.
From my guess, it is caused by some needs on
On 06/12/2014 11:21 AM, Joonsoo Kim wrote:
We can remove one call sites for clear_cma_bitmap() if we first
call it before checking error number.
Signed-off-by: Joonsoo Kim iamjoonsoo@lge.com
Reviewed-by: Zhang Yanfei zhangyan...@cn.fujitsu.com
diff --git a/mm/cma.c b/mm/cma.c
index
Joonsoo Kim iamjoonsoo@lge.com writes:
We don't need explicit 'CMA:' prefix, since we already define prefix
'cma:' in pr_fmt. So remove it.
And, some logs print function name and others doesn't. This looks
bad to me, so I unify log format to print function name consistently.
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
We don't need explicit 'CMA:' prefix, since we already define prefix
'cma:' in pr_fmt. So remove it.
And, some logs print function name and others doesn't. This looks
bad to me, so I unify log format to print function name
On 05/23/2014 08:45 PM, Anshuman Khandual wrote:
This patch series adds five new ELF core note sections which can be
used with existing ptrace request PTRACE_GETREGSET/SETREGSET for accessing
various transactional memory and miscellaneous register sets on PowerPC
platform. Please find a
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
We should free memory for bitmap when we find zone mis-match,
otherwise this memory will leak.
Additionally, I copy code comment from ppc kvm's cma code to notify
why we need to check zone mis-match.
Signed-off-by: Joonsoo Kim
On Thu, Jun 12 2014, Michal Nazarewicz min...@mina86.com wrote:
I used “function(arg1, arg2, …)” at the *beginning* of functions when
the arguments passed to the function were included in the message. In
all other cases I left it at just “function:” (or just no additional
prefix). IMO that's
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
To prepare future generalization work on cma area management code,
we need to separate core cma management codes from DMA APIs.
We will extend these core functions to cover requirements of
ppc kvm's cma area management
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
ppc kvm's cma area management needs alignment constraint on
I've noticed it earlier and cannot seem to get to terms with this. It
should IMO be PPC, KVM and CMA since those are acronyms. But if you
have strong feelings, it's not a
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
ppc kvm's cma region management requires arbitrary bitmap granularity,
since they want to reserve very large memory and manage this region
with bitmap that one bit for several pages to reduce management overheads.
So support
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
We can remove one call sites for clear_cma_bitmap() if we first
call it before checking error number.
Signed-off-by: Joonsoo Kim iamjoonsoo@lge.com
Reviewed-by: Michal Nazarewicz min...@mina86.com
diff --git a/mm/cma.c
On Thu, Jun 12 2014, Joonsoo Kim iamjoonsoo@lge.com wrote:
Conventionally, we put output param to the end of param list.
cma_declare_contiguous() doesn't look like that, so change it.
Perhaps the function should be changed to return an error-pointer?
Additionally, move down cma_areas
Hi Christoph,
This is under Ubuntu Utopic Unicorn on a Power 8 system while simply
trying to build with the Ubuntu standard kernel config. It could be
that these issues come about because we do not have an rc1 yet but I
wanted to give some early notice. Also this is a new arch to me so I
may
On Mon, May 12, 2014 at 03:57:34PM +1000, Benjamin Herrenschmidt wrote:
This shuffles code around in exceptions-64s.S in order to
allow an allmodconfig build to succeed.
The main problems were:
- We have a fixed hole from 0x7000 to 0x8000 for use by FW,
under some circumstances the code
Actually, from gcc/config/rs6000.h:
/* 1 for registers that have pervasive standard uses
and are not available for the register allocator.
[snip]
So cr5, which is number 73, is never used by gcc.
Not available for RA is not the same thing at all as not used by GCC.
For example, GPR1
From: Anton Blanchard
...
diff --git a/arch/powerpc/boot/install.sh b/arch/powerpc/boot/install.sh
index b6a256b..e096e5a 100644
--- a/arch/powerpc/boot/install.sh
+++ b/arch/powerpc/boot/install.sh
@@ -23,8 +23,8 @@ set -e
# User may have a custom install script
-if [ -x
On vcpu schedule, the condition checked for tlb pollution is too tight.
The tlb entries of one vcpu are polluted when a different vcpu from the
same partition runs in-between. Relax the current tlb invalidation
condition taking into account the lpid.
Signed-off-by: Mihai Caraman mihai.caraman at
On 06/02/2014 05:50 PM, Mihai Caraman wrote:
On book3e, guest last instruction is read on the exit path using load
external pid (lwepx) dedicated instruction. This load operation may fail
due to TLB eviction and execute-but-not-read entries.
This patch lay down the path for an alternative
On 06/02/2014 05:50 PM, Mihai Caraman wrote:
On book3e, KVM uses load external pid (lwepx) dedicated instruction to read
guest last instruction on the exit path. lwepx exceptions (DTLB_MISS, DSI
and LRAT), generated by loading a guest address, needs to be handled by KVM.
These exceptions are
On 06/12/2014 04:00 PM, Mihai Caraman wrote:
On vcpu schedule, the condition checked for tlb pollution is too tight.
The tlb entries of one vcpu are polluted when a different vcpu from the
same partition runs in-between. Relax the current tlb invalidation
condition taking into account the lpid.
The precedent we have used is that features that refer to ISA Categories
include _HAS_ following the PPC_FEATURE[2]. So GLIBC specifies in hwcap.h:
/* Feature definitions in AT_HWCAP2. */
#define PPC_FEATURE2_ARCH_2_07 0x8000 /* ISA 2.07 */
#define PPC_FEATURE2_HAS_HTM 0x4000
The QORIQ P1023RDB has an option to populate the Marvell 88E6165
Ethernet switch. We populated this device and was able to initialize
it as a basic switch in U-Boot. However, the switch driver was not
loaded upon kernel bootup. DSA kernel config was enabled for the
On Thu, 2014-06-12 at 23:36 +0800, Pannirselvam Kanagaratnam wrote:
The QORIQ P1023RDB has an option to populate the Marvell 88E6165
Ethernet switch. We populated this device and was able to initialize
it as a basic switch in U-Boot. However, the switch driver was not
loaded upon kernel
On Thu, 2014-06-12 at 07:26 -0500, Segher Boessenkool wrote:
But, indeed, it does look like GCC doesn't use it. It seems to me
that
some ABI forbade userland (or non-libraries or whatever) from using
it.
I'll see what I can find out.
I can still use -ffixed-cr5 for safety no ?
Cheers,
Ben.
On Thu, 2014-06-12 at 05:26 -0700, Guenter Roeck wrote:
what happened with this patch ?
Well it breaks with that binutils version of yours ... I'm trying to fix
it in a better way but it's a mess... still working on it.
Cheers,
Ben.
___
Linuxppc-dev
On Thu, 2014-06-12 at 10:13 -0500, Steve Munroe wrote:
The precedent we have used is that features that refer to ISA Categories
include _HAS_ following the PPC_FEATURE[2]. So GLIBC specifies in hwcap.h:
/* Feature definitions in AT_HWCAP2. */
#define PPC_FEATURE2_ARCH_2_07 0x8000
On Fri, Jun 13, 2014 at 07:57:08AM +1000, Benjamin Herrenschmidt wrote:
On Thu, 2014-06-12 at 07:26 -0500, Segher Boessenkool wrote:
But, indeed, it does look like GCC doesn't use it. It seems to me
that
some ABI forbade userland (or non-libraries or whatever) from using
it.
I'll see
On 06/12/2014 02:57 PM, Benjamin Herrenschmidt wrote:
On Thu, 2014-06-12 at 05:26 -0700, Guenter Roeck wrote:
what happened with this patch ?
Well it breaks with that binutils version of yours ... I'm trying to fix
it in a better way but it's a mess... still working on it.
I updated my
Hi Linus !
Here are the remaining bits I was mentioning earlier. Mostly bug fixes
and new selftests from Michael (yay !). He also removed the WSP platform
and A2 core support which were dead before release, so less clutter.
One little feature I snuck in is the doorbell IPI support for
On Fri, 2014-06-13 at 10:55 +1000, Benjamin Herrenschmidt wrote:
Hi Linus !
Sending a copy via IBM just in case gmail has an issue with pull
requests :-) If it goes through fine I'll stop doing it.
Cheers,
Ben.
Here are the remaining bits I was mentioning earlier. Mostly bug fixes
and new
Goobledieguy due to missing Mime header.
On Thu, 12 Jun 2014, David Laight wrote:
RnJvbTogQW50b24gQmxhbmNoYXJkDQouLi4NCj4gZGlmZiAtLWdpdCBhL2FyY2gvcG93ZXJwYy9i
b290L2luc3RhbGwuc2ggYi9hcmNoL3Bvd2VycGMvYm9vdC9pbnN0YWxsLnNoDQo+IGluZGV4IGI2
On Thu, Dec 12, 2013 at 4:44 AM, Nicolin Chen
guangyu.c...@freescale.com wrote:
+static int fsl_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct fsl_ssi_private *ssi_private =
Sir,
On Thu, Jun 12, 2014 at 10:24:55PM -0500, Timur Tabi wrote:
On Thu, Dec 12, 2013 at 4:44 AM, Nicolin Chen
guangyu.c...@freescale.com wrote:
+static int fsl_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
On Thu, Jun 12, 2014 at 10:21 PM, Nicolin Chen
guangyu.c...@freescale.com wrote:
It compiles well with my ARM cross compiler. I guess it might be related
to the compiler's version? But we should fix it anyway. Would you mind if
I submit a patch? Or you do it directly?
I just submitted a
On Thu, Jun 12, 2014 at 10:44:48PM -0500, Timur Tabi wrote:
On Thu, Jun 12, 2014 at 10:21 PM, Nicolin Chen
guangyu.c...@freescale.com wrote:
It compiles well with my ARM cross compiler. I guess it might be related
to the compiler's version? But we should fix it anyway. Would you mind if
On Thu, Jun 12, 2014 at 10:09:12PM +1000, Anton Blanchard wrote:
The TOC symbol export is special and I think we might need to get our
script to ignore it.
Try this (untested) patch. If it's good I'll send it to Ben.
diff --git a/arch/powerpc/relocs_check.pl b/arch/powerpc/relocs_check.pl
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