THP paths can defer splitting compound pages until after the actual
remap and TLB flushes to split a huge PMD/PUD. This causes radix
partition scope page table mappings to get out of synch with the host
qemu page table mappings.
This results in random memory corruption in the guest when running
wi
On 09/04/2018 09:36 AM, David Gibson wrote:
On Mon, Sep 03, 2018 at 10:07:32PM +0530, Aneesh Kumar K.V wrote:
THP pages can get split during different code paths. An incremented reference
count do imply we will not split the compound page. But the pmd entry can be
converted to level 4 pte entrie
On 09/04/2018 01:46 PM, Nicholas Piggin wrote:
THP paths can defer splitting compound pages until after the actual
remap and TLB flushes to split a huge PMD/PUD. This causes radix
partition scope page table mappings to get out of synch with the host
qemu page table mappings.
May be we can impro
This patch exports VPA related data such as stolen and
donated CPU cycles through /proc/powerpc/lparcfg file.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/include/asm/lppaca.h| 10 ++-
arch/powerpc/platforms/pseries/lparcfg.c | 45 ++
2 files change
Hello!
On 9/4/2018 5:44 AM, Jaejoong Kim wrote:
Many drivers with tty use the tty_stand_install(). But, there is no
need to handle the error, since it always returns 0. So, change the
return type of tty_standard_install() and tty_port_install() to void
type and remove unnecessary exception hand
On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
Acked-by: Mark Brown
signature.
Hi!
> The 00-INDEX files are supposed to give a summary of all files present
> in a directory, but these files are horribly out of date and their
> usefulness is brought into question. Often a simple "ls" would reveal
> the same information as the filenames are generally quite descriptive as
> a s
On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
>
> The 00-INDEX files are suppose
On Fri, Aug 31, 2018 at 11:52:18AM +0800, Ran Wang wrote:
> Add property 'big-endian' and supportted IP's configuration info.
> Remove property 'fsl,#rcpm-wakeup-cell'.
"dt-bindings: soc: ..." for the subject
It is obvious reading the diff you are removing fsl,#rcpm-wakeup-cell.
What is not obvi
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: Benjamin Herrenschmidt
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring
---
v2: Add setting dev_name in macio_asic.c
drivers/macintosh/macio_asic.c
On Tue, 4 Sep 2018 11:48:08 -0600
Jason Gunthorpe wrote:
> Hi Nicholas,
>
> I am testing 4.19-rc2 and I see bad behavior with my qemu hvc0
> console..
>
> Running interactive with qemu (qemu-2.11.2-1.fc28) on the console
> providing hvc0, using options like:
>
> -nographic
> -c
On Mon, Sep 03, 2018 at 08:49:38PM +0530, Sandipan Das wrote:
> +#ifdef __powerpc64__
> + case 265: /* modud */
> + if (!cpu_has_feature(CPU_FTR_ARCH_300))
> + return -1;
> + op->val = regs->gpr[ra] % regs->gpr[rb
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: Benjamin Herrenschmidt
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring
---
v3:
- Fix dev_name handling. Using "%.*p" syntax throws a warning (and
prob
On Tue, 4 Sep 2018 13:30:30 +0200
Pavel Machek wrote:
> I'd say this is still quite valueable, and it might be worth fixing,
> rather then removing completely.
I agree. Perhaps we should have a 00-DESCRIPTION file in each
directory, and each file could start with a:
DESCRIPTION:
and then the
On 9/3/18 4:15 PM, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
>
> The 00-INDEX files are supposed to give a summary of
Hi Nicholas,
I am testing 4.19-rc2 and I see bad behavior with my qemu hvc0
console..
Running interactive with qemu (qemu-2.11.2-1.fc28) on the console
providing hvc0, using options like:
-nographic
-chardev stdio,id=stdio,mux=on,signal=off
-mon chardev=stdio
-dev
On Tue, Sep 04, 2018 at 12:15:23AM +0200, Henrik Austad wrote:
> This is a respin with a wider audience (all that get_maintainer returned)
> and I know this spams a *lot* of people. Not sure what would be the correct
> way, so my apologies for ruining your inbox.
>
> The 00-INDEX files are suppose
On Wed, Sep 05, 2018 at 07:15:29AM +1000, Nicholas Piggin wrote:
> On Tue, 4 Sep 2018 11:48:08 -0600
> Jason Gunthorpe wrote:
>
> > Hi Nicholas,
> >
> > I am testing 4.19-rc2 and I see bad behavior with my qemu hvc0
> > console..
> >
> > Running interactive with qemu (qemu-2.11.2-1.fc28) on the
On Mon, Sep 03, 2018 at 08:49:33PM +0530, Sandipan Das wrote:
> +#ifdef __powerpc64__
> + case 4:
> + if (!cpu_has_feature(CPU_FTR_ARCH_300))
> + return -1;
> +
> + switch (instr & 0x3f) {
> + case 48:/* maddhd */
> +
On Mon, Sep 03, 2018 at 08:49:35PM +0530, Sandipan Das wrote:
> + case 538: /* cnttzw */
> + if (!cpu_has_feature(CPU_FTR_ARCH_300))
> + return -1;
> + val = (unsigned int) regs->gpr[rd];
> + o
This patch series removes two Variable Length Arrays (VLAs) from
the powerpc code.
Series based on v4.19-rc2
Suraj Jitindar Singh (2):
powerpc/prom: Remove VLA in prom_check_platform_support()
powerpc/pseries: Remove VLA from lparcfg_write()
arch/powerpc/kernel/prom_init.c | 7
In lparcfg_write we hard code kbuf_sz and then use this as the variable
length of kbuf creating a variable length array. Since we're hard coding
the length anyway just define the array using this as the length and
remove the need for kbuf_sz, thus removing the variable length array.
Signed-off-by:
In prom_check_platform_support() we retrieve and parse the
"ibm,arch-vec-5-platform-support" property of the chosen node.
Currently we use a variable length array however to avoid this use an
array of constant length 8.
This property is used to indicate the supported options of vector 5
bytes 23-2
Hi Rob
> -Original Message-
> From: Rob Herring
> Sent: Tuesday, September 04, 2018 09:25
> To: Ran Wang
> Cc: Leo Li ; Mark Rutland ;
> linuxppc-dev@lists.ozlabs.org; linux-arm-ker...@lists.infradead.org;
> devicet...@vger.kernel.org; linux-ker...@vger.kernel.org
> Subject: Re: [PATCH 2
Many drivers with tty use the tty_stand_install(). But, there is no
need to handle the error, since it always returns 0. So, change the
return type of tty_standard_install() and tty_port_install() to void
type and remove unnecessary exception handling where we use these
functions.
Signed-off-by: J
Please change your comments style.
On 2018/8/31 11:57, Ran Wang wrote:
> This driver is to provide a independent framework for PM service
> provider and consumer to configure system level wake up feature. For
> example, RCPM driver could register a callback function on this
> platform first, and F
Please change your comments style.
On 2018/8/31 11:56, Ran Wang wrote:
> The NXP's QorIQ Processors based on ARM Core have RCPM module (Run
> Control and Power Management), which performs all device-level
> tasks associated with power management such as wakeup source control.
>
> This driver depen
On Tue, Sep 4, 2018 at 9:58 PM Wang, Dongsheng
wrote:
>
> Please change your comments style.
Although this doesn't get into the Linux kernel coding style
documentation yet, Linus seems changed his mind to prefer // than /*
*/ comment style now. https://lkml.org/lkml/2017/11/25/133 So the
// st
On Tue, 4 Sep 2018 15:16:35 -0600
Jason Gunthorpe wrote:
> On Wed, Sep 05, 2018 at 07:15:29AM +1000, Nicholas Piggin wrote:
> > On Tue, 4 Sep 2018 11:48:08 -0600
> > Jason Gunthorpe wrote:
> >
> > > Hi Nicholas,
> > >
> > > I am testing 4.19-rc2 and I see bad behavior with my qemu hvc0
> > >
On Wed, Sep 05, 2018 at 01:51:56PM +1000, Nicholas Piggin wrote:
> On Tue, 4 Sep 2018 15:16:35 -0600
> Jason Gunthorpe wrote:
>
> > On Wed, Sep 05, 2018 at 07:15:29AM +1000, Nicholas Piggin wrote:
> > > On Tue, 4 Sep 2018 11:48:08 -0600
> > > Jason Gunthorpe wrote:
> > >
> > > > Hi Nicholas,
> >
On Tue, Sep 04, 2018 at 06:16:01PM +1000, Nicholas Piggin wrote:
> THP paths can defer splitting compound pages until after the actual
> remap and TLB flushes to split a huge PMD/PUD. This causes radix
> partition scope page table mappings to get out of synch with the host
> qemu page table mapping
On 09/05/2018, 03:08 AM, Jaejoong Kim wrote:
> > @@ -688,7 +688,7 @@ extern int tty_port_close_start(struct
> tty_port *port,
> > extern void tty_port_close_end(struct tty_port *port, struct
> tty_struct *tty);
> > extern void tty_port_close(struct tty_port *port,
> >
On 09/03/2018 03:56 PM, Vaibhav Jain wrote:
Ever since fast reboot is enabled by default in opal,
opal_cec_reboot() will use fast-reset instead of full IPL to perform
system reboot. This leaves the user with no direct way to force a full
IPL reboot except changing an nvram setting that persistent
On Tue, Sep 04, 2018 at 04:12:07PM -0500, Segher Boessenkool wrote:
> On Mon, Sep 03, 2018 at 08:49:35PM +0530, Sandipan Das wrote:
> > + case 538: /* cnttzw */
> > + if (!cpu_has_feature(CPU_FTR_ARCH_300))
> > + return -1;
> > +
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