On Thu, May 03, 2018 at 08:15:59PM +1000, Nicholas Piggin wrote:
> On Thu, 03 May 2018 20:03:55 +1000
> Stewart Smith wrote:
>
> > Nicholas Piggin writes:
> > > On Thu, 3 May 2018 14:36:47 +0530
> > > Akshay Adiga wrote:
> > >
> > >> On Tue, May 01, 2018 at 01:47:23PM +1000, Nicholas Piggin w
On Fri, Apr 06, 2018 at 04:12:32PM +1000, Michael Ellerman wrote:
> Nicholas Piggin writes:
> > diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
> > b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
> > index 78e6a392330f..0221a0f74f07 100644
> > --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
> > +++ b/arch/power
On Thu, 10 May 2018 14:29:44 +0530
Akshay Adiga wrote:
> On Thu, May 03, 2018 at 08:15:59PM +1000, Nicholas Piggin wrote:
> > On Thu, 03 May 2018 20:03:55 +1000
> > Stewart Smith wrote:
> >
> > > Nicholas Piggin writes:
> > > > On Thu, 3 May 2018 14:36:47 +0530
> > > > Akshay Adiga wrote:
Although it is often possible to recover a CPU that was interrupted
from OPAL with a system reset NMI, it's undesirable to interrupt them
for a few reasons. Firstly because dump/debug code itself needs to
call firmware, so it could hang on a lock or possibly corrupt a
per-cpu data structure if it o
Nicholas Piggin writes:
> The powerpc toolchain can compile combinations of 32/64 bit and
> big/little endian, so it's convenient to consider, e.g.,
>
> `CC -m64 -mbig-endian`
>
> To be the C compiler for the purpose of invoking it to build target
> artifacts. So overriding the the CC variable
Currently memtrace doesn't build if NUMA=n:
In function ‘memtrace_alloc_node’:
arch/powerpc/platforms/powernv/memtrace.c:134:6:
error: the address of ‘contig_page_data’ will always evaluate as ‘true’
if (!NODE_DATA(nid) || !node_spanned_pages(nid))
^
This is because for NUMA=n N
On Thu, May 10, 2018 at 03:16:55PM +1000, Nicholas Piggin wrote:
> The 64-bit toolchain uses the wrong ISA variant for compiling 32-bit
> kernels, eve with -m32. Set -mcpu=powerpc which is the generic 32-bit
> powerpc machine type and scheduling model. 32-bit platforms and CPUs
> can override this
On Thu, 10 May 2018 23:03:08 +1000
Michael Ellerman wrote:
> Nicholas Piggin writes:
>
> > The powerpc toolchain can compile combinations of 32/64 bit and
> > big/little endian, so it's convenient to consider, e.g.,
> >
> > `CC -m64 -mbig-endian`
> >
> > To be the C compiler for the purpose o
On Thu, 10 May 2018 08:10:03 -0500
Segher Boessenkool wrote:
> On Thu, May 10, 2018 at 03:16:55PM +1000, Nicholas Piggin wrote:
> > The 64-bit toolchain uses the wrong ISA variant for compiling 32-bit
> > kernels, eve with -m32. Set -mcpu=powerpc which is the generic 32-bit
> > powerpc machine ty
Now that we've updated the generic headers to support 5 PKEY bits for
powerpc we don't need our own #defines in arch code.
Signed-off-by: Michael Ellerman
---
arch/powerpc/include/asm/pkeys.h | 15 ---
1 file changed, 15 deletions(-)
One additional patch to finish cleaning things up
On Mon, 2018-04-30 at 03:27:36 UTC, Michael Ellerman wrote:
> If the systbl_chk.sh checks fail we print a message, but with no
> indication that it's an error. That makes it hard to find in build
> logs with eg. grep.
>
> So prefix any output with "Error:".
>
> Signed-off-by: Michael Ellerman
A
On Mon, 2018-04-30 at 10:31:50 UTC, Nicholas Piggin wrote:
> For consideration:
>
> * Add NVDIMM support - Enables greater testing, mambo device.
> * Add IPv6 support built in + additional modules - Because it's 2018 maan.
> * Add DEFERRED_STRUCT_PAGE_INIT - Let's see what breaks.
> * Add PPC_MEMT
On Wed, 2018-05-02 at 13:20:46 UTC, Michael Ellerman wrote:
> From: Al Viro
>
> Signed-off-by: Al Viro
Series applied to powerpc next.
https://git.kernel.org/powerpc/c/3691d6145585f52a6292c158e72bcd
cheers
On Fri, 2018-05-04 at 12:38:34 UTC, Torsten Duwe wrote:
> The "Power Architecture 64-Bit ELF V2 ABI" says in section 2.3.2.3:
>
> [...] There are several rules that must be adhered to in order to ensure
> reliable and consistent call chain backtracing:
>
> * Before a function calls any other func
On Sat, 2018-05-05 at 07:25:59 UTC, Nicholas Piggin wrote:
> The watchdog heartbeat timestamp is updated when the local heartbeat
> timer fires (or touch_nmi_watchdog() is called).
>
> This is an interesting data point, so don't overwrite it when the
> soft-NMI interrupt detects a hard lockup. Tha
On Sun, 2018-05-06 at 11:23:46 UTC, Wolfram Sang wrote:
> Signed-off-by: Wolfram Sang
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/7c18659dd498b25c6651ba83d4267b
cheers
On Mon, 2018-05-07 at 13:03:55 UTC, Michael Ellerman wrote:
> The hcall_exit() tracepoint has retval defined as unsigned long. That
> leads to humours results like:
>
> bash-3686 [009] d..2 854.134094: hcall_entry: opcode=24
> bash-3686 [009] d..2 854.134095: hcall_exit: opcode=24
> ret
On Mon, 2018-05-07 at 14:20:16 UTC, =?utf-8?q?Jonathan_Neusch=C3=A4fer?= wrote:
> The Wii doesn't have built-in Ethernet and USB Ethernet adapters are in
> a different menu. Disable CONFIG_ETHERNET to save some space in support
> code for Ethernet drivers.
>
> Note that this patch doesn't disable
On Tue, 2018-05-08 at 07:05:14 UTC, =?utf-8?q?C=C3=A9dric_Le_Goater?= wrote:
> The kexec_state KEXEC_STATE_IRQS_OFF barrier is reached by all
> secondary CPUs before the kexec_cpu_down() operation is called on
> secondaries. This can raise conflicts and provoque errors in the XIVE
> hcalls when XIV
On Thursday 10 May 2018 06:34 AM, Nicholas Piggin wrote:
When soft enabled was changed to irq disabled mask, this test missed
being converted (although the equivalent book3s test was converted).
The PMU drivers consider it an NMI when they take a PMI while general
interrupts are disabled. This
On Thu, May 10, 2018 at 11:24:40PM +1000, Nicholas Piggin wrote:
> On Thu, 10 May 2018 08:10:03 -0500
> Segher Boessenkool wrote:
> > On Thu, May 10, 2018 at 03:16:55PM +1000, Nicholas Piggin wrote:
> > > The 64-bit toolchain uses the wrong ISA variant for compiling 32-bit
> > > kernels, eve with
On Thu, May 10, 2018 at 03:16:55PM +1000, Nicholas Piggin wrote:
> The 64-bit toolchain uses the wrong ISA variant for compiling 32-bit
> kernels, eve with -m32. Set -mcpu=powerpc which is the generic 32-bit
> powerpc machine type and scheduling model. 32-bit platforms and CPUs
> can override this
On Sat, Apr 21, 2018 at 3:04 AM, Matthew Wilcox wrote:
> On Fri, Apr 20, 2018 at 11:02:39PM +0530, Souptick Joarder wrote:
>> Use new return type vm_fault_t for fault handler. For
>> now, this is just documenting that the function returns
>> a VM_FAULT value rather than an errno. Once all instance
On Thu, Apr 19, 2018 at 7:26 PM, Cornelia Huck wrote:
> On Thu, 19 Apr 2018 00:49:58 +0530
> Souptick Joarder wrote:
>
>> Use new return type vm_fault_t for fault handler. For
>> now, this is just documenting that the function returns
>> a VM_FAULT value rather than an errno. Once all instances
>
From: Colin Ian King
Trivial fix to spelling mistake in debug messages of a structure
field name
Signed-off-by: Colin Ian King
---
drivers/macintosh/windfarm_pm121.c | 2 +-
drivers/macintosh/windfarm_pm81.c | 2 +-
drivers/macintosh/windfarm_pm91.c | 2 +-
3 files changed, 3 insertions(+),
On 18/04/2018 21:19, Souptick Joarder wrote:
> Use new return type vm_fault_t for fault handler. For
> now, this is just documenting that the function returns
> a VM_FAULT value rather than an errno. Once all instances
> are converted, vm_fault_t will become a distinct type.
>
> commit 1c8f422059a
Using irq_work for processing OPAL event interrupts is not necessary.
irq_work is typically used to schedule work from NMI context, a
softirq may be more appropriate. However OPAL events are not
particularly performance or latency critical, so they can all be
invoked by kopald.
This patch removes
Use new return type vm_fault_t for fault handler
in struct vm_operations_struct. For now, this is
just documenting that the function returns a
VM_FAULT value rather than an errno. Once all
instances are converted, vm_fault_t will become
a distinct type.
commit 1c8f422059ae ("mm: change return ty
Agree. Was going to send that the moment the other patches
landed upstream. Glad I dont have to do it :-)
Reviewed-by: Ram Pai
On Thu, May 10, 2018 at 11:54:22PM +1000, Michael Ellerman wrote:
> Now that we've updated the generic headers to support 5 PKEY bits for
> powerpc we don't need our
On Tue, Apr 17, 2018 at 8:03 PM, Laurent Dufour
wrote:
> pte_unmap_same() is making the assumption that the page table are still
> around because the mmap_sem is held.
> This is no more the case when running a speculative page fault and
> additional check must be made to ensure that the final page
This series makes it possible to use the SD card on the Wii. The WLAN
now also works on the SDIO level, but fails to connect to a network for
some reason.
Patch 1 seems quite obvious, although I don't know why the code was
broken in this particular way.
Patch 2 might not be the right solution for
On the Wii, there is a secondary IRQ controller (hlwd-pic), so
flipper-pic's match operation should not be hardcoded to return 1.
In fact, the default matching logic is sufficient, and we can completely
omit flipper_pic_match.
Signed-off-by: Jonathan Neuschäfer
---
Note: This shouldn't break Lin
The interrupt controller inside the Wii's Hollywood chip is connected to
two masters, the "Broadway" PowerPC and the "Starlet" ARM926, each with
their own interrupt status and mask registers.
When booting the Wii with mini[1], interrupts from the SD card
controller (IRQ 7) are handled by the ARM,
emulate_step() will fail on POWER6 currently with:
emulate_step_test: lfdx : PASS
emulate_step_test: stfdx : PASS
emulate_step_test: lvx: PASS
emulate_step_test: stvx : PASS
Oops: Exception in kernel mode, sig: 4 [#1]
BE SMP NR_CPUS=2048 NUMA pS
On 05/11/2018 07:05 AM, Michael Neuling wrote:
> emulate_step() will fail on POWER6 currently with:
>
> emulate_step_test: lfdx : PASS
> emulate_step_test: stfdx : PASS
> emulate_step_test: lvx: PASS
> emulate_step_test: stvx : PASS
> Oops: Except
From: Ran Wang
When rcpm driver get target register data from DTS property 'fsl,
rcpm-wakeup' (second value), it directly write that data to register
RCPM_IPPDEXPCRx rather than 'OR' the value read from it before. This
operation will over-write those non-related IP control bit which
might have be
From: Yuantian Tang
The Run Control and Power Management (RCPM) module communicates
with embedded cores, coherency modules, and other device platform
module to provide run control and power management functionality
Signed-off-by: Tang Yuantian
Signed-off-by: Yinbo Zhu
---
drivers/soc/fsl/Make
From: Zhang Ying-22455
Set RCPM for FTM when using FTM as wakeup source. Because the RCPM
module of each platform has different big-end and little-end mode,
there need to set RCPM depending on the platform.
Signed-off-by: Zhang Ying-22455
Signed-off-by: Yinbo Zhu
---
.../devicetree/bindings/t
From: Zhang Ying-22455
Add the identify of the platform to support set the rcpm with
big-endian or little-endian.
Signed-off-by: Zhang Ying-22455
---
arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi |6 --
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts
From: Yuantian Tang
Technically psci v0.2 can not support system sleep. Unfortunately
our PPA only supports psci v0.2. So workaround this by changing
psci v1.0 to v0.2 call to implement system sleep.
Signed-off-by: Tang Yuantian
Signed-off-by: Yinbo Zhu
---
drivers/firmware/psci.c | 16
From: Zhang Ying-22455
Signed-off-by: Zhang Ying-22455
---
drivers/soc/fsl/layerscape/ftm_alarm.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/soc/fsl/layerscape/ftm_alarm.c
b/drivers/soc/fsl/layerscape/ftm_alarm.c
index 811dcfa..c22ef49 100644
--- a/drivers
From: Zhang Ying-22455
Add the identify of the platform to support set the rcpm with
big-endian or little-endian.
Signed-off-by: Zhang Ying-22455
---
arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm64/boot/dts/fre
From: Zhang Ying-22455
Add the identify of the platform to support set the rcpm with
big-endian or little-endian.
Signed-off-by: Zhang Ying-22455
---
arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm64/boot/dts/fre
From: Yuantian Tang
In current kernel, only psci v1.0 is supported. But our psci firmware
only support psci v0.2. So update psci driver to support psci v0.2.
Signed-off-by: Tang Yuantian
---
drivers/firmware/psci.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/dri
"Alastair D'Silva" writes:
> diff --git a/include/uapi/misc/ocxl.h b/include/uapi/misc/ocxl.h
> index 0af83d80fb3e..8d2748e69c84 100644
> --- a/include/uapi/misc/ocxl.h
> +++ b/include/uapi/misc/ocxl.h
> @@ -48,6 +48,15 @@ struct ocxl_ioctl_metadata {
> __u64 reserved[13]; // Total of 16*u64
"Alastair D'Silva" writes:
> diff --git a/include/uapi/misc/ocxl.h b/include/uapi/misc/ocxl.h
> index 8d2748e69c84..bb80f294b429 100644
> --- a/include/uapi/misc/ocxl.h
> +++ b/include/uapi/misc/ocxl.h
> @@ -72,5 +75,6 @@ struct ocxl_ioctl_irq_fd {
> #define OCXL_IOCTL_IRQ_SET_FD_IOW(OCX
Christophe Leroy writes:
> diff --git a/arch/powerpc/mm/ioremap.c b/arch/powerpc/mm/ioremap.c
> new file mode 100644
> index ..5d2645193568
> --- /dev/null
> +++ b/arch/powerpc/mm/ioremap.c
> @@ -0,0 +1,350 @@
> +/*
> + * This file contains the routines for mapping IO areas
> + *
> +
From: Alastair D'Silva
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/kernel/process.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/process
From: Alastair D'Silva
The current implementation of TID allocation, using a global IDR, may
result in an errant process starving the system of available TIDs.
Instead, use task_pid_nr(), as mentioned by the original author. The
scenario described which prevented it's use is not applicable, as
se
From: Alastair D'Silva
This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/include/asm/cputable.h | 3 ++-
arch/powerpc/kernel/dt_cpu_ftrs.c | 1 +
2 files changed, 3
From: Alastair D'Silva
The Power 9 as_notify/wait feature provides a lower latency way to
signal a thread that work is complete. This series enables the use of
this feature from OpenCAPI adapters, as well as addressing a potential
starvation issue when allocating thread IDs.
Changelog:
v5:
Rem
From: Alastair D'Silva
In order for a userspace AFU driver to call the POWER9 specific
OCXL_IOCTL_ENABLE_P9_WAIT, it needs to verify that it can actually
make that call.
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/file.c | 25 +
include/uapi/misc/ocxl.h | 6 +
From: Alastair D'Silva
Signed-off-by: Alastair D'Silva
---
Documentation/accelerators/ocxl.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a/Documentation/accelerators/ocxl.rst
b/Documentation/accelerators/ocxl.rst
index ddcc58d01cfb..14cefc020e2d 100644
--- a/Documentation/
From: Alastair D'Silva
The function removes the process element from NPU cache.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 +-
arch/powerpc/platforms/powernv/ocxl.c | 4 ++--
drivers/misc/ocxl/link.c | 2 +-
3 files changed, 4 insertions(+), 4 de
From: Alastair D'Silva
In order to successfully issue as_notify, an AFU needs to know the TID
to notify, which in turn means that this information should be
available in userspace so it can be communicated to the AFU.
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/context.c | 5 +
Christophe Leroy writes:
> diff --git a/arch/powerpc/mm/ioremap.c b/arch/powerpc/mm/ioremap.c
> index 59be5dfcb3e9..b8c347077e02 100644
> --- a/arch/powerpc/mm/ioremap.c
> +++ b/arch/powerpc/mm/ioremap.c
> @@ -132,9 +132,14 @@ void __iomem * __ioremap_caller(phys_addr_t addr,
> unsigned long siz
Christophe Leroy writes:
> The purpose of this serie is to implement hardware assistance for TLB table
> walk
> on the 8xx.
>
> First part is to make L1 entries and L2 entries independant.
> For that, we need to alter ioremap functions in order to handle GUARD
> attribute
> at the PGD/PMD level
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