This causes warnings from cpufreq mutex code. This is also
rather unnecessary and ineffective. If we really want to
prevent concurrent unplug, we could take the unplug read
lock but I don't see this being critical.
Signed-off-by: Benjamin Herrenschmidt
---
arch/powerpc/kernel/setup-common.c | 11
Signed-off-by: Benjamin Herrenschmidt
---
arch/powerpc/kernel/setup-common.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/setup-common.c
b/arch/powerpc/kernel/setup-common.c
index c1df4ba0094c..9f9524bdd3f1 100644
--- a/arch/powerpc/kernel/setup
We used to not put the newline between the CPU part and the summary
part on UP kernels. This is a rather pointless ifdef so take it out.
Signed-off-by: Benjamin Herrenschmidt
---
arch/powerpc/kernel/setup-common.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerp
On Tue, Jan 09, 2018 at 08:21:20PM +1100, Paul Mackerras wrote:
> This adds three new capabilities that give userspace information about
> the underlying machine's level of vulnerability to the Meltdown and
> Spectre attacks, and what instructions the hardware implements to
> assist software to wor
From: Anshuman Khandual
Any changes to the partition table must be followed by appropriate TLB
flush which is not happening at present in native_register_proc_table()
path. Fix this by calling mmu_partition_table_set_entry() which does
take care of TLB flushing after the partition table update.
On Tue, 2018-01-09 at 23:44 +1100, Alexey Kardashevskiy wrote:
> On 09/01/18 19:39, Suraj Jitindar Singh wrote:
> > On Tue, 2018-01-09 at 15:48 +1100, Paul Mackerras wrote:
> > > This adds three new capabilities that give userspace information
> > > about
> > > the underlying machine's level of vul
On 10 January 2018 2:45:56 am AEDT, Frederic Barrat
wrote:
>
>
>Le 03/01/2018 à 06:48, Andrew Donnellan a écrit :
>> On 19/12/17 02:21, Frederic Barrat wrote:
>>> OCXL_BASE triggers the platform support needed by the driver.
>>>
>>> Signed-off-by: Frederic Barrat
>>> ---
>>> drivers/misc/Kco
Hello Abdul,
> On Jan 9, 2018, at 7:54 AM, Bart Van Assche wrote:
>
> On Tue, 2018-01-09 at 14:44 +0530, Abdul Haleem wrote:
>> Greeting's,
>>
>> Linux next kernel panics on powerpc when module qla2xxx is load/unload.
>>
>> Machine Type: Power 8 PowerVM LPAR
>> Kernel : 4.15.0-rc2-next-20171
Joel Stanley writes:
> On Mon, Jan 8, 2018 at 8:54 AM, Michael Ellerman wrote:
>> On some CPUs we can prevent the Meltdown vulnerability by flushing the
>> L1-D cache on exit from kernel to user mode, and from hypervisor to
>> guest.
>
> Super minor nitpicks below. Don't let this hold up your wo
On Fri, Dec 29, 2017 at 09:18:09AM +0100, Christoph Hellwig wrote:
> The current PCI_DMA_BUS_IS_PHYS decided if a dma implementation is bound
> by the dma mask in the device because it directly maps to a physical
> address range (modulo an offset in the device), or if it is virtualized
> by an iomm
On Fri, Dec 29, 2017 at 09:18:26AM +0100, Christoph Hellwig wrote:
> Life the code from x86 so that we behave consistently. In the future we
> should probably warn if any of these is set.
>
> Signed-off-by: Christoph Hellwig
Acked-by: Jesper Nilsson
> ---
> arch/cris/arch-v32/drivers/pci/dma
On Tue, 2018-01-09 at 14:44 +0530, Abdul Haleem wrote:
> Greeting's,
>
> Linux next kernel panics on powerpc when module qla2xxx is load/unload.
>
> Machine Type: Power 8 PowerVM LPAR
> Kernel : 4.15.0-rc2-next-20171211
> gcc : version 4.8.5
> Test type: module load/unload few times
>
> Trace m
On Fri, Dec 29, 2017 at 09:18:38AM +0100, Christoph Hellwig wrote:
> cris currently has an incomplete direct mapping dma_map_ops implementation
> is PCI support is enabled. Replace it with the fully feature generic
> dma-direct implementation.
>
> Signed-off-by: Christoph Hellwig
For CRIS:
Ack
The POWER9 core supports a new feature: ASB_Notify which requires the
support of the Special Purpose Register: TIDR.
The ASB_Notify command, generated by the AFU, will attempt to
wake-up the host thread identified by the particular LPID:PID:TID.
This patch assign a unique TIDR (thread id) for the
Le 03/01/2018 à 06:48, Andrew Donnellan a écrit :
On 19/12/17 02:21, Frederic Barrat wrote:
OCXL_BASE triggers the platform support needed by the driver.
Signed-off-by: Frederic Barrat
---
drivers/misc/Kconfig | 1 +
drivers/misc/Makefile | 1 +
drivers/misc/ocxl/Kconfig |
On Thu, Jan 04, 2018 at 09:49:30AM +0100, Christoph Hellwig wrote:
> On Tue, Jan 02, 2018 at 08:45:30PM +1100, Michael Ellerman wrote:
> > Christoph Hellwig writes:
> >
> > > We want to use the dma_direct_ namespace for a generic implementation,
> > > so rename powerpc to the second best choice:
Benjamin Herrenschmidt writes:
> On Mon, 2018-01-08 at 21:30 -0800, John Sperbeck wrote:
>> The pnv_get_proc_freq() function was recently changed to call
>> cpufreq_get(), instead of cpufreq_quick_get(), in order to fetch
>> a more up-to-date value for the CPU frequency:
>>
>>cd77b5ce208c153
Greg Kurz writes:
> On Tue, 9 Jan 2018 23:44:56 +1100
> Alexey Kardashevskiy wrote:
>
>> On 09/01/18 19:39, Suraj Jitindar Singh wrote:
> [...]
>> >> + rc = plpar_get_cpu_characteristics(&c);
>> >> + if (rc == H_SUCCESS) {
>> >> + if (!(c.behavior &
>> >
>> > s/behavior/behaviour
>
Hi Paul,
I love your patch! Yet something to improve:
[auto build test ERROR on kvm/linux-next]
[also build test ERROR on v4.15-rc7 next-20180109]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux
On Tue, 9 Jan 2018 23:44:56 +1100
Alexey Kardashevskiy wrote:
> On 09/01/18 19:39, Suraj Jitindar Singh wrote:
[...]
> >> + rc = plpar_get_cpu_characteristics(&c);
> >> + if (rc == H_SUCCESS) {
> >> + if (!(c.behavior &
> >
> > s/behavior/behaviour
>
> Why?
> https://dictionary.
On 09/01/18 19:39, Suraj Jitindar Singh wrote:
> On Tue, 2018-01-09 at 15:48 +1100, Paul Mackerras wrote:
>> This adds three new capabilities that give userspace information
>> about
>> the underlying machine's level of vulnerability to the Meltdown and
>> Spectre attacks, and what instructions the
On Tue, Jan 09, 2018 at 12:57:26PM +0100, Michal Suchánek wrote:
> On Tue, 09 Jan 2018 19:39:14 +1100
> Suraj Jitindar Singh wrote:
>
> >
> > s/behavior/behaviour
>
> Nope. Either is valid and the shorter American spelling is actually
> more common.
>
> If you must nickpick choose something ac
On Tue, 09 Jan 2018 19:39:14 +1100
Suraj Jitindar Singh wrote:
>
> s/behavior/behaviour
Nope. Either is valid and the shorter American spelling is actually
more common.
If you must nickpick choose something actually broken :p
Thanks
Michal
Hi Paul,
I love your patch! Yet something to improve:
[auto build test ERROR on kvm/linux-next]
[also build test ERROR on v4.15-rc7 next-20180109]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux
An application running with libhugetlbfs fails to allocate
additional pages to HEAP due to the hugemap being done
inconditionally as topdown mapping:
mmap(0x1008, 1572864, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4, -1, 0) = 0x73e8
[...]
mmap(0x7400, 1048576, PROT_READ|PR
On Tue, 2018-01-09 at 20:21 +1100, Paul Mackerras wrote:
> This adds three new capabilities that give userspace information
> about
> the underlying machine's level of vulnerability to the Meltdown and
> Spectre attacks, and what instructions the hardware implements to
> assist software to work aro
On Tue, Jan 09, 2018 at 07:28:35PM +1100, Suraj Jitindar Singh wrote:
[snip]
> > + rc = plpar_get_cpu_characteristics(&c);
> > + if (rc == H_SUCCESS) {
> > + if (!(c.behavior &
> > H_GET_CPU_CHAR_BEHAV_L1_FLUSH_LOW_PRIV))
>
> s/H_GET_CPU_CHAR_BEHAV_L1_FLUSH_LOW_PRIV/H_CPU_BEHAV_L1D_F
This adds three new capabilities that give userspace information about
the underlying machine's level of vulnerability to the Meltdown and
Spectre attacks, and what instructions the hardware implements to
assist software to work around the vulnerabilities.
Each capability is a tri-state, where 0 i
Greeting's,
Linux next kernel panics on powerpc when module qla2xxx is load/unload.
Machine Type: Power 8 PowerVM LPAR
Kernel : 4.15.0-rc2-next-20171211
gcc : version 4.8.5
Test type: module load/unload few times
Trace messages:
---
qla2xxx [:00:00.0]-0005: : QLogic Fibre Channe
On Tue, 2018-01-09 at 15:48 +1100, Paul Mackerras wrote:
> This adds three new capabilities that give userspace information
> about
> the underlying machine's level of vulnerability to the Meltdown and
> Spectre attacks, and what instructions the hardware implements to
> assist software to work aro
On Tue, 2018-01-09 at 15:48 +1100, Paul Mackerras wrote:
> This adds three new capabilities that give userspace information
> about
> the underlying machine's level of vulnerability to the Meltdown and
> Spectre attacks, and what instructions the hardware implements to
> assist software to work aro
On Tue, Jan 09, 2018 at 03:54:51AM +1100, Michael Ellerman wrote:
> From: Nicholas Piggin
>
> Expose the state of the RFI flush (enabled/disabled) via sysfs, and
> allow it to be enabled/dissabled at runtime.
>
> Signed-off-by: Nicholas Piggin
> Signed-off-by: Michael Ellerman
> ---
> arch/po
On 01/09/2018 03:05 AM, Greg KH wrote:
> On Tue, Jan 09, 2018 at 01:06:23AM -0500, Jon Masters wrote:
>> Knowing that the IBM team was going to post with this sysfs interface,
>> our trees contain the rfi_flush file. I mentioned it to some folks on
>> this end (because we know we don't want to add
On Tue, Jan 09, 2018 at 01:06:23AM -0500, Jon Masters wrote:
> Knowing that the IBM team was going to post with this sysfs interface,
> our trees contain the rfi_flush file. I mentioned it to some folks on
> this end (because we know we don't want to add things in sysfs
> generally, debugfs is a go
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