On Wed, Jan 30, 2019 at 11:58:40PM +1100, Michael Ellerman wrote:
> Alexander Fomichev writes:
>
> > get_dma_ops() falls into arch-dependant get_arch_dma_ops(), which
> > historically returns NULL on PowerPC. Therefore dma_set_mask() fails.
> > This affects Switchtec (and probably other) NTB devi
Mike Rapoport writes:
> On Sun, Feb 03, 2019 at 08:39:20PM +1100, Michael Ellerman wrote:
>> Mike Rapoport writes:
>> > Currently, memblock has several internal functions with overlapping
>> > functionality. They all call memblock_find_in_range_node() to find free
>> > memory and then reserve the
FPGA on LX2160AQDS/LX2160ARDB connected on I2C bus, so add qixis
driver which is basically an i2c client driver to control FPGA.
Also added platform driver for MMIO based FPGA, like the one available
on LS2088ARDB/LS2088AQDS.
Signed-off-by: Wang Dongsheng
Signed-off-by: Pankaj Bansal
---
Notes
FPGA on LX2160AQDS/LX2160ARDB connected on I2C bus,
so add qixis driver which is basically an i2c client driver to control FPGA.
Also added platform driver for MMIO based FPGA, like the one available
on LS2088ARDB/LS2088AQDS.
This driver is essential to control MDIO mux multiplexing.
This driver
an FPGA-based system controller, called “Qixis”, which
manages several critical system features, including:
• Reset sequencing
• Power supply configuration
• Board configuration
• hardware configuration
The qixis registers are accessible over one or more system-specific
interfaces, typically I2C,
The patch
ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the n
On 2/4/19 1:50 AM, David Gibson wrote:
> On Wed, Jan 23, 2019 at 05:24:13PM +0100, Cédric Le Goater wrote:
>> On 1/22/19 5:56 AM, Paul Mackerras wrote:
>>> On Mon, Jan 07, 2019 at 07:43:15PM +0100, Cédric Le Goater wrote:
We will have different KVM devices for interrupts, one for the
XICS
Christophe Leroy writes:
> Since commit c40dd2f76644 ("powerpc: Add System RAM to /proc/iomem")
> it is possible to use the generic walk_system_ram_range() and
> the generic page_is_ram().
>
> To enable the use of walk_system_ram_range() by the IBM EHEA
> ethernet driver, the generic function has
Christophe Leroy writes:
> The purpose of this serie is to activate CONFIG_THREAD_INFO_IN_TASK which
> moves the thread_info into task_struct.
Hi Christophe,
I've taken this series and split some of the patches up a bit more.
I'll just run it through some tests and then post my version.
cheer
On 2/4/19 5:25 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:17PM +0100, Cédric Le Goater wrote:
>> This is the basic framework for the new KVM device supporting the XIVE
>> native exploitation mode. The user interface exposes a new capability
>> and a new KVM device to be used by QEMU.
>
On 2/4/19 5:45 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:18PM +0100, Cédric Le Goater wrote:
>> This will let the guest create a memory mapping to expose the ESB MMIO
>> regions used to control the interrupt sources, to trigger events, to
>> EOI or to turn off the sources.
>>
>> Signe
On 04 February 2019 at 08:56AM, Christoph Hellwig wrote:
On Sun, Feb 03, 2019 at 05:49:02PM +0100, Christian Zigotzky wrote:
OK, next step: b50f42f0fe12965ead395c76bcb6a14f00cdf65b (powerpc/dma: use
the dma_direct mapping routines)
git clone git://git.infradead.org/users/hch/misc.git -b powerpc
Nicholas Piggin writes:
> Michael Ellerman's on January 17, 2019 9:35 pm:
>> Currently in system_call_exit() we have an optimisation where we
>> disable MSR_RI (recoverable interrupt) and MSR_EE (external interrupt
>> enable) in a single mtmsrd instruction.
>>
>> Unfortunately this will no longe
On Mon, Feb 04, 2019 at 01:13:54PM +0100, Christian Zigotzky wrote:
>>> Results: The X1000 and X5000 boot but unfortunately the P.A. Semi Ethernet
>>> doesn't work.
>> Are there any interesting messages in the boot log? Can you send me
>> the dmesg?
>>
> Here you are: http://www.xenosoft.de/dmesg_
The dpaa2_io_down(priv->io) call frees "priv->io" so I've shifted the
code around a little bit to avoid the use after free.
Fixes: 991e873223e9 ("soc: fsl: dpio: use a cpumask to identify which cpus are
unused")
Signed-off-by: Dan Carpenter
---
drivers/soc/fsl/dpio/dpio-driver.c | 2 +-
1 file
My previous big patch was received about as well as can be expected.
That is to say I'll assume everybody loved it, so we have to get there
a bit more incrementally.
This first round of patches was verified each patch (with several
configs) to not change any generated code, to make a small step to
By convention, all lines should be separated by a semicolons. Last line
should have neithe semicolon or line wrap. Small cleanup before we begin.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 36 ++---
arch/powerpc/include/asm/head-64.h | 68
Replace all instances of this with gas macros that test the hsrr
parameter and use the appropriate register names / labels.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 333 +--
arch/powerpc/include/asm/head-64.h | 8 +-
arch/powerpc/k
Switch to a gas macro that conditionally expands the RI clearing
instruction.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 43 ++--
arch/powerpc/kernel/exceptions-64s.S | 6 ++--
2 files changed, 14 insertions(+), 35 deletions(-)
diff --
- Re-name the macros to _REAL and _VIRT suffixes rather than no and
_RELON suffix.
- Move the macro definitions together in the file.
- Move RELOCATABLE ifdef inside the _VIRT macro.
Further consolidation between variants does not buy much here.
Signed-off-by: Nicholas Piggin
---
arch/power
Rather than pass in the soft-masking and KVM tests via macro that is
passed to another macro to expand it, switch to usig gas macros and
conditionally expand the soft-masking and KVM tests.
The system reset with its idle test is open coded as it is a one-off.
Signed-off-by: Nicholas Piggin
---
Conditionally expand the soft-masking test if a mask is passed in.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 113 +--
arch/powerpc/kernel/exceptions-64s.S | 8 +-
2 files changed, 49 insertions(+), 72 deletions(-)
diff --git a/arch/p
Conditionally expand the skip case if it is specified.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 28 +---
arch/powerpc/include/asm/head-64.h | 8 +++
arch/powerpc/kernel/exceptions-64s.S | 2 +-
3 files changed, 15 insertion
Move the KVM trap HSRR bit, into the KVM handler, which can be
conditionally applied when hsrr parameter is set.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 5 +
arch/powerpc/include/asm/head-64.h | 7 ++-
2 files changed, 7 insertions(+), 5 deleti
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 25
arch/powerpc/kernel/exceptions-64s.S | 12 ++--
2 files changed, 19 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/include/asm/exception-64s.h
b/arch/powerpc/include/
The aim is to reduce the amount of indirection it takes to get through
the exception handler macros, particularly where it provides little
code sharing.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 26
arch/powerpc/kernel/exceptions-64s.S
More cases of code insertion via macros that does not add a great
deal. All the additions have to be specified in the macro arguments,
so they can just as well go after the macro.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 42 +++---
arch/powerp
Many of these macros just specify 1-4 lines which are only called a
few times each at most, and often just once. Remove this indirection.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 101 ---
arch/powerpc/include/asm/head-64.h | 76
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 113 ---
1 file changed, 57 insertions(+), 56 deletions(-)
diff --git a/arch/powerpc/include/asm/exception-64s.h
b/arch/powerpc/include/asm/exception-64s.h
index f8f657321c88..e7e5c71b1ad0 100644
-
These are only called in one place each.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 22 --
arch/powerpc/include/asm/head-64.h | 19 +--
2 files changed, 17 insertions(+), 24 deletions(-)
diff --git a/arch/powerpc/inclu
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 40 +---
1 file changed, 21 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/include/asm/exception-64s.h
b/arch/powerpc/include/asm/exception-64s.h
index 4d3bd10ea59a..3eb8f9a4eac8 100644
-
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/exception-64s.h | 429 ---
arch/powerpc/kernel/exceptions-64s.S | 429 +++
2 files changed, 429 insertions(+), 429 deletions(-)
diff --git a/arch/powerpc/include/asm/exception-64s.h
b/arch/po
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/head-64.h | 252 ---
arch/powerpc/kernel/exceptions-64s.S | 251 ++
2 files changed, 251 insertions(+), 252 deletions(-)
diff --git a/arch/powerpc/include/asm/head-64.h
b/arch/powerpc/i
On 2/4/19 5:49 AM, David Gibson wrote:
> On Wed, Jan 23, 2019 at 05:56:26PM +0100, Cédric Le Goater wrote:
>> On 1/22/19 6:14 AM, Paul Mackerras wrote:
>>> On Mon, Jan 07, 2019 at 07:43:20PM +0100, Cédric Le Goater wrote:
The ESB MMIO region controls the interrupt sources of the guest. QEMU
>>
Check a resource for the UNSET flags.
Signed-off-by: Sergey Miroshnichenko
---
arch/powerpc/platforms/powernv/pci-ioda.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c
b/arch/powerpc/platforms/powernv/pci-ioda.c
index 7db3119f8a5b
If the firmware or kernel has arranged memory for PCIe devices in a way that
doesn't provide enough space for BARs of a new hotplugged device, the kernel
can pause the drivers of the "obstructing" devices and move their BARs, so
new BARs can fit into the freed spaces.
When a driver is un-paused by
If a new PCIe device has been hot-plugged between the two active ones
without big enough gap between their BARs, these BARs should be moved
if their drivers support this feature. The drivers should be notified
and paused during the procedure:
1) dev 8 (new)
|
CPU0 CPU1
pci_enable_device_mem() pci_enable_device_mem()
pci_enable_bridge() pci_enable_bridge()
pci_is_enabled()
return false;
atomic_inc_return(enable_cnt)
Start actual enabling the bridge
On 2/4/19 6:18 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:26PM +0100, Cédric Le Goater wrote:
>> When the VM is stopped in a migration sequence, the sources are masked
>> and the XIVE IC is synced to stabilize the EQs. When done, the KVM
>> ioctl KVM_DEV_XIVE_SAVE_EQ_PAGES is called to
Drivers indicate their support of movable BARs by implementing the
new rescan_prepare() and rescan_done() hooks in the struct pci_driver.
All device's activity must be stopped during a rescan, and iounmap()
+ioremap() must be applied to every used BAR.
Signed-off-by: Sergey Miroshnichenko
---
d
On 2/4/19 6:15 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:24PM +0100, Cédric Le Goater wrote:
>> The guest physical address of the event queue will be part of the
>> state to transfer in the migration. Cache its value when the queue is
>> configured, it will save us an OPAL call.
>
>
On 2/4/19 6:21 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:27PM +0100, Cédric Le Goater wrote:
>> Theses are use to capure the XIVE EAS table of the KVM device, the
>> configuration of the source targets.
>>
>> Signed-off-by: Cédric Le Goater
>> ---
>> arch/powerpc/include/uapi/asm/kv
Hello Michael,
Michael S. Tsirkin writes:
> On Tue, Jan 29, 2019 at 03:42:44PM -0200, Thiago Jung Bauermann wrote:
>>
>> Fixing address of powerpc mailing list.
>>
>> Thiago Jung Bauermann writes:
>>
>> > Hello,
>> >
>> > With Christoph's rework of the DMA API that recently landed, the patch
Christoph Hellwig writes:
> On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
>> This has been discussed ad nauseum. virtio is all about compatibility.
>> Losing a couple of lines of code isn't worth breaking working setups.
>> People that want "just use DMA API no tricks" now
On 2/4/19 6:26 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 08:10:04PM +0100, Cédric Le Goater wrote:
>> At a VCPU level, the state of the thread context interrupt management
>> registers needs to be collected. These registers are cached under the
>> 'xive_saved_state.w01' field of the VCPU wh
On 2/4/19 5:57 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:21PM +0100, Cédric Le Goater wrote:
>> Interrupt sources are simply created at the OPAL level and then
>> MASKED. KVM only needs to know about their type: LSI or MSI.
>
> This commit message isn't very illuminating.
There is r
Please include device tree binding mailing list and maintainers for
binding patches(cc'ed now).
On Mon, Feb 4, 2019 at 3:15 AM Pankaj Bansal wrote:
>
> an FPGA-based system controller, called “Qixis”, which
> manages several critical system features, including:
> • Reset sequencing
> • Power supp
On Mon, Feb 04, 2019 at 04:14:20PM -0200, Thiago Jung Bauermann wrote:
>
> Hello Michael,
>
> Michael S. Tsirkin writes:
>
> > On Tue, Jan 29, 2019 at 03:42:44PM -0200, Thiago Jung Bauermann wrote:
> >>
> >> Fixing address of powerpc mailing list.
> >>
> >> Thiago Jung Bauermann writes:
> >>
>
On Mon, Feb 4, 2019 at 8:12 AM Dan Carpenter wrote:
>
> The dpaa2_io_down(priv->io) call frees "priv->io" so I've shifted the
> code around a little bit to avoid the use after free.
>
> Fixes: 991e873223e9 ("soc: fsl: dpio: use a cpumask to identify which cpus
> are unused")
> Signed-off-by: Dan
On Mon, Feb 04, 2019 at 04:15:41PM -0200, Thiago Jung Bauermann wrote:
>
> Christoph Hellwig writes:
>
> > On Tue, Jan 29, 2019 at 09:36:08PM -0500, Michael S. Tsirkin wrote:
> >> This has been discussed ad nauseum. virtio is all about compatibility.
> >> Losing a couple of lines of code isn't w
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on v5.0-rc4 next-20190204]
[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 2/4/19 6:17 AM, David Gibson wrote:
> On Mon, Jan 07, 2019 at 07:43:25PM +0100, Cédric Le Goater wrote:
>> When migration of a VM is initiated, a first copy of the RAM is
>> transferred to the destination before the VM is stopped. At that time,
>> QEMU needs to perform a XIVE quiesce sequence to
Hi all,
On Mon, 04 Feb 2019 19:45:17 +1100 Michael Ellerman wrote:
>
> Mike Rapoport writes:
> > On Sun, Feb 03, 2019 at 08:39:20PM +1100, Michael Ellerman wrote:
> >> Mike Rapoport writes:
> >> > Currently, memblock has several internal functions with overlapping
> >> > functionality. They
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on v5.0-rc4 next-20190204]
[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
Vaibhav,
> Presently when an error is encountered during probe of the cxlflash
> adapter, a deadlock is seen with cpu thread stuck inside
> cxlflash_remove(). Below is the trace of the deadlock as logged by
> khungtaskd:
Applied to 5.0/scsi-fixes, thanks!
--
Martin K. Petersen Oracle Lin
On Thursday, 31 January 2019 12:11:06 PM AEDT Andrea Arcangeli wrote:
> On Thu, Jan 31, 2019 at 06:30:22PM +0800, Peter Xu wrote:
> > The change_pte() notifier was designed to use as a quick path to
> > update secondary MMU PTEs on write permission changes or PFN changes.
> > For KVM, it could redu
On Mon, Feb 04, 2019 at 08:07:20PM +0100, Cédric Le Goater wrote:
> On 2/4/19 5:57 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 07:43:21PM +0100, Cédric Le Goater wrote:
[snip]
> >> + sb = kvmppc_xive_create_src_block(xive, irq);
> >> + if (!sb) {
> >> + pr
On Mon, Feb 04, 2019 at 07:57:26PM +0100, Cédric Le Goater wrote:
> On 2/4/19 6:26 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 08:10:04PM +0100, Cédric Le Goater wrote:
> >> At a VCPU level, the state of the thread context interrupt management
> >> registers needs to be collected. These reg
On Mon, Feb 04, 2019 at 12:30:39PM +0100, Cédric Le Goater wrote:
> On 2/4/19 5:45 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 07:43:18PM +0100, Cédric Le Goater wrote:
> >> This will let the guest create a memory mapping to expose the ESB MMIO
> >> regions used to control the interrupt sou
On Mon, Feb 04, 2019 at 04:46:00PM +0100, Cédric Le Goater wrote:
> On 2/4/19 6:18 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 07:43:26PM +0100, Cédric Le Goater wrote:
> >> When the VM is stopped in a migration sequence, the sources are masked
> >> and the XIVE IC is synced to stabilize th
On Mon, Feb 04, 2019 at 12:19:07PM +0100, Cédric Le Goater wrote:
> On 2/4/19 5:25 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 07:43:17PM +0100, Cédric Le Goater wrote:
> >> This is the basic framework for the new KVM device supporting the XIVE
> >> native exploitation mode. The user interf
On Mon, Feb 04, 2019 at 05:07:28PM +0100, Cédric Le Goater wrote:
> On 2/4/19 6:21 AM, David Gibson wrote:
> > On Mon, Jan 07, 2019 at 07:43:27PM +0100, Cédric Le Goater wrote:
> >> Theses are use to capure the XIVE EAS table of the KVM device, the
> >> configuration of the source targets.
> >>
> >
Le 04/02/2019 à 11:24, Michael Ellerman a écrit :
Christophe Leroy writes:
Since commit c40dd2f76644 ("powerpc: Add System RAM to /proc/iomem")
it is possible to use the generic walk_system_ram_range() and
the generic page_is_ram().
To enable the use of walk_system_ram_range() by the IBM E
On Mon, Feb 04, 2019 at 04:38:21PM -0500, Michael S. Tsirkin wrote:
> It was designed to make, when set, as many guests as we can work
> correctly, and it seems to be successful in doing exactly that.
>
> Unfortunately there could be legacy guests that do work correctly but
> become slow. Whether
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