Hi,
On 19/08/2019 18:31:38+0200, Thomas Bogendoerfer wrote:
> diff --git a/drivers/mfd/ioc3.c b/drivers/mfd/ioc3.c
> new file mode 100644
> index ..5bcb3461a189
> --- /dev/null
> +++ b/drivers/mfd/ioc3.c
> @@ -0,0 +1,586 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * SGI IOC3 mu
On 8/19/19 5:09 PM, Saravana Kannan wrote:
> On Mon, Aug 19, 2019 at 2:30 PM Frank Rowand wrote:
>>
>> On 8/19/19 1:49 PM, Saravana Kannan wrote:
>>> On Mon, Aug 19, 2019 at 10:16 AM Frank Rowand
>>> wrote:
On 8/15/19 6:50 PM, Saravana Kannan wrote:
> On Wed, Aug 7, 2019 at 7:06 PM
KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it
eliminates the need for a trap, as well as the need to emulate or
single-step instructions.
This patch implements KPROBES_ON_FTRACE for arm64.
Tested on berlin arm64 platform.
~ # mount -t debugfs debugfs /sys/kernel/debug/
For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
correspondingly.
Signed-off-by: Jisheng Zhang
---
kernel/kprobes.c | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 9873fc627d61..3fd2f68644da 100644
--- a/kern
This is to make the x86 kprobe_ftrace_handler() more common so that
the code could be reused in future.
Signed-off-by: Jisheng Zhang
Acked-by: Masami Hiramatsu
---
arch/x86/kernel/kprobes/ftrace.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/kprob
KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it
eliminates the need for a trap, as well as the need to emulate or
single-step instructions.
Applied after arm64 FTRACE_WITH_REGS:
http://lists.infradead.org/pipermail/linux-arm-kernel/2019-August/674404.html
Changes since v1
On Mon, Aug 19, 2019 at 10:51:24PM +0200, Greg KH wrote:
> On Mon, Aug 19, 2019 at 01:31:33PM +0800, Wu Hao wrote:
> > On Mon, Aug 12, 2019 at 10:49:55AM +0800, Wu Hao wrote:
> > > Hi Greg,
> > >
> > > This is v5 patchset which adds more features to FPGA DFL. Marjor changes
> > > against v4 are sy
On Tue, Aug 13, 2019 at 01:52:16PM -0700, Yu-cheng Yu wrote:
> There are a few places that need do_mmap() with mm->mmap_sem held.
> Create an in-line function for that.
>
> Signed-off-by: Yu-cheng Yu
> ---
> include/linux/mm.h | 18 ++
> 1 file changed, 18 insertions(+)
>
> diff
On Mon, Aug 19, 2019 at 01:31:33PM +0800, Wu Hao wrote:
> On Mon, Aug 12, 2019 at 10:49:55AM +0800, Wu Hao wrote:
> > Hi Greg,
> >
> > This is v5 patchset which adds more features to FPGA DFL. Marjor changes
> > against v4 are sysfs related code rework to address comments on v4.
> >
> > Please he
On Mon, Aug 19, 2019 at 2:30 PM Frank Rowand wrote:
>
> On 8/19/19 1:49 PM, Saravana Kannan wrote:
> > On Mon, Aug 19, 2019 at 10:16 AM Frank Rowand
> > wrote:
> >>
> >> On 8/15/19 6:50 PM, Saravana Kannan wrote:
> >>> On Wed, Aug 7, 2019 at 7:06 PM Frank Rowand
> >>> wrote:
>
> On 7
On Mon, 19 Aug 2019 18:31:35 +0200, Thomas Bogendoerfer wrote:
> @@ -1386,18 +1427,24 @@ static netdev_tx_t ioc3_start_xmit(struct sk_buff
> *skb, struct net_device *dev)
> unsigned long b2 = (data | 0x3fffUL) + 1UL;
> unsigned long s1 = b2 - data;
> unsig
On Mon, 19 Aug 2019 18:31:34 +0200, Thomas Bogendoerfer wrote:
> netif_stop_queue()/netif_wake_qeue() aren't needed for changing
> multicast filters. Use spinlocks instead for proper protection
> of private struct.
>
> Signed-off-by: Thomas Bogendoerfer
> ---
> drivers/net/ethernet/sgi/ioc3-eth.
On Mon, 19 Aug 2019 18:31:33 +0200, Thomas Bogendoerfer wrote:
> Buffers alloacted by alloc_skb() are already cache aligned so there
> is no need for an extra align done by ioc3_alloc_skb. And instead
> of skb_put/skb_trim simply use one skb_put after frame size is known
> during receive.
>
> Sign
On Mon, 19 Aug 2019 18:31:32 +0200, Thomas Bogendoerfer wrote:
> Descriptor ring sizes of the IOC3 are more or less fixed size. To
> make clearer where there is a relation to ring sizes use defines.
>
> Signed-off-by: Thomas Bogendoerfer
Reviewed-by: Jakub Kicinski
On Mon, 19 Aug 2019 18:31:23 +0200, Thomas Bogendoerfer wrote:
> - requested by Jakub I've splitted ioc3 ethernet driver changes into
>more steps to make the transition more visible;
Thanks a lot for doing that!
On Wed, Aug 14, 2019 at 09:56:01AM +0200, Michal Hocko wrote:
[snip]
> > > > Can this be used to observe which library pages other processes are
> > > > accessing, even if you don't have access to those processes, as long
> > > > as you can map the same libraries? I realize that there are already a
On 8/19/19 1:49 PM, Saravana Kannan wrote:
> On Mon, Aug 19, 2019 at 10:16 AM Frank Rowand wrote:
>>
>> On 8/15/19 6:50 PM, Saravana Kannan wrote:
>>> On Wed, Aug 7, 2019 at 7:06 PM Frank Rowand wrote:
On 7/23/19 5:10 PM, Saravana Kannan wrote:
> Add device-links after the devices a
On Mon, Aug 19, 2019 at 10:16 AM Frank Rowand wrote:
>
> On 8/15/19 6:50 PM, Saravana Kannan wrote:
> > On Wed, Aug 7, 2019 at 7:06 PM Frank Rowand wrote:
> >>
> >> On 7/23/19 5:10 PM, Saravana Kannan wrote:
> >>> Add device-links after the devices are created (but before they are
> >>> probed) b
On Fri, Aug 16, 2019 at 08:53:58AM -0500, Bjorn Helgaas wrote:
> From: Bjorn Helgaas
>
> 2e6422444894 ("Documentation: PCI: convert PCIEBUS-HOWTO.txt to reST")
> incorrectly renamed PCIEBUS-HOWTO.txt to picebus-howto.rst.
>
> Rename it to pciebus-howto.rst.
>
> Fixes: 2e6422444894 ("Documentati
On 8/15/19 6:50 PM, Saravana Kannan wrote:
> On Wed, Aug 7, 2019 at 7:06 PM Frank Rowand wrote:
>>
>> On 7/23/19 5:10 PM, Saravana Kannan wrote:
>>> Add device-links after the devices are created (but before they are
>>> probed) by looking at common DT bindings like clocks and
>>> interconnects.
nvmem_device_find provides a way to search for nvmem devices with
the help of a match function simlair to bus_find_device.
Signed-off-by: Thomas Bogendoerfer
---
Documentation/driver-api/nvmem.rst | 2 ++
drivers/nvmem/core.c | 62 --
include/li
Refactored code to only have one ioc3 special handling for read
access and one for write access.
Signed-off-by: Thomas Bogendoerfer
---
arch/mips/pci/pci-xtalk-bridge.c | 167 +++
1 file changed, 62 insertions(+), 105 deletions(-)
diff --git a/arch/mips/pci/p
netif_stop_queue()/netif_wake_qeue() aren't needed for changing
multicast filters. Use spinlocks instead for proper protection
of private struct.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/dr
Buffers alloacted by alloc_skb() are already cache aligned so there
is no need for an extra align done by ioc3_alloc_skb. And instead
of skb_put/skb_trim simply use one skb_put after frame size is known
during receive.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c |
Descriptor ring sizes of the IOC3 are more or less fixed size. To
make clearer where there is a relation to ring sizes use defines.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 42 +
1 file changed, 24 insertions(+), 18 deletion
Break up the big ioc3 register struct into functional pieces to
make use in sub-function drivers more straightforward. And while
doing that get rid of all volatile access by using readX/writeX.
Signed-off-by: Thomas Bogendoerfer
---
arch/mips/include/asm/sn/ioc3.h | 359 +
The half/full duplex settings for inter packet gap counters/timer were
reversed.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c
b/drivers/net/ethernet/sgi/ioc3
Replace the homegrown DMA memory allocation, which only works on
SGI-IP27 machines, with the generic dma allocations.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 107 ++--
1 file changed, 77 insertions(+), 30 deletions(-)
diff --g
IOC3 chips in SGI system are conntected to a bridge ASIC, which has
a 1-wire prom attached with part number information. This changeset
uses this information to create PCI subsystem information, which
the MFD driver uses for further platform device setup.
Signed-off-by: Thomas Bogendoerfer
---
a
replace open coded checksum folding by csum_fold.
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 6 +-
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c
b/drivers/net/ethernet/sgi/ioc3-eth.c
index 647e3926bd71..563
Our chosen byte swapping, which is what firmware already uses, is to
do readl/writel by normal lw/sw intructions (data invariance). This
also means we need to mangle addresses for u8 and u16 accesses. The
mangling for 16bit has been done aready, but 8bit one was missing.
Correcting this causes diff
This patch adds a platform driver for supporting keyboard and mouse
interface of SGI IOC3 chips.
Signed-off-by: Thomas Bogendoerfer
---
drivers/input/serio/Kconfig | 10 +++
drivers/input/serio/Makefile | 1 +
drivers/input/serio/ioc3kbd.c | 160 ++
Removed not needed disabling of ethernet interrupts in IP27 platform code.
Signed-off-by: Thomas Bogendoerfer
---
arch/mips/sgi-ip27/ip27-init.c | 13 -
1 file changed, 13 deletions(-)
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 066b33f50bcc..5
Add a 1-Wire slave driver to support DS250x EPROM deivces. This
slave driver attaches the devices to the NVMEM subsystem for
an easy in-kernel usage.
Signed-off-by: Thomas Bogendoerfer
---
drivers/w1/slaves/Kconfig | 6 +
drivers/w1/slaves/Makefile| 1 +
drivers/w1/slaves/w1_ds250x.c
Before massaging the driver further fix oddities found by checkpatch like
- wrong indention
- comment formatting
- use of printk instead or netdev_xxx/pr_xxx
Signed-off-by: Thomas Bogendoerfer
---
drivers/net/ethernet/sgi/ioc3-eth.c | 275 +---
1 file changed, 130
SGI IOC3 chip has integrated ethernet, keyboard and mouse interface.
It also supports connecting a SuperIO chip for serial and parallel
interfaces. IOC3 is used inside various SGI systemboards and add-on
cards with different equipped external interfaces.
Support for ethernet and serial interfaces
GI IOC3 ASIC includes support for ethernet, PS2 keyboard/mouse,
NIC (number in a can), GPIO and a byte bus. By attaching a
SuperIO chip to it, it also supports serial lines and a parallel
port. The chip is used on a variety of SGI systems with different
configurations. This patchset moves code out
Starting with SGI Origin machines nearly every new SGI ASIC contains
an 1-Wire master. They are used for attaching One-Wire prom devices,
which contain information about part numbers, revision numbers,
serial number etc. and MAC addresses for ethernet interfaces.
This patch adds a master driver to
On Thu, Aug 15, 2019 at 04:43:59PM +0100, Catalin Marinas wrote:
> There isn't a good reason to differentiate between the user address
> space layout modification syscalls and the other memory
> permission/attributes ones (e.g. mprotect, madvise) w.r.t. the tagged
> address ABI. Untag the user addr
On Thu, Aug 15, 2019 at 04:44:02PM +0100, Catalin Marinas wrote:
> From: Vincenzo Frascino
>
> On AArch64 the TCR_EL1.TBI0 bit is set by default, allowing userspace
> (EL0) to perform memory accesses through 64-bit pointers with a non-zero
> top byte. Introduce the document describing the relaxat
From: Tom Lendacky
There have been reports of RDRAND issues after resuming from suspend on
some AMD family 15h and family 16h systems. This issue stems from a BIOS
not performing the proper steps during resume to ensure RDRAND continues
to function properly.
RDRAND support is indicated by CPUID
On Thu, Aug 15, 2019 at 5:44 PM Catalin Marinas wrote:
>
> From: Vincenzo Frascino
>
> On AArch64 the TCR_EL1.TBI0 bit is set by default, allowing userspace
> (EL0) to perform memory accesses through 64-bit pointers with a non-zero
> top byte. Introduce the document describing the relaxation of t
On Thu, Aug 15, 2019 at 5:44 PM Catalin Marinas wrote:
>
> From: Vincenzo Frascino
>
> On AArch64 the TCR_EL1.TBI0 bit is set by default, allowing userspace
> (EL0) to perform memory accesses through 64-bit pointers with a non-zero
> top byte. However, such pointers were not allowed at the user-k
On Thu, Aug 15, 2019 at 5:44 PM Catalin Marinas wrote:
>
> First rename the sysctl control to abi.tagged_addr_disabled and make it
> default off (zero). When abi.tagged_addr_disabled == 1, only block the
> enabling of the TBI ABI via prctl(PR_SET_TAGGED_ADDR_CTRL,
> PR_TAGGED_ADDR_ENABLE).
> Gett
On Thu, Aug 15, 2019 at 5:44 PM Catalin Marinas wrote:
>
> There isn't a good reason to differentiate between the user address
> space layout modification syscalls and the other memory
> permission/attributes ones (e.g. mprotect, madvise) w.r.t. the tagged
> address ABI. Untag the user addresses o
On Thu, Aug 15, 2019 at 5:44 PM Catalin Marinas wrote:
>
> Require that arg{3,4,5} of the PR_{SET,GET}_TAGGED_ADDR_CTRL prctl and
> arg2 of the PR_GET_TAGGED_ADDR_CTRL prctl() are zero rather than ignored
> for future extensions.
>
> Signed-off-by: Catalin Marinas
Acked-by: Andrey Konovalov
>
On Thu, Aug 15, 2019 at 1:06 AM Masahiro Yamada
wrote:
>
> These three variables are not intended to be tweaked by users.
> Move them from kbuild.rst to makefiles.rst.
>
> Signed-off-by: Masahiro Yamada
> ---
>
Applied to linux-kbuild.
> I will apply to linux-kbuild this
> to avoid conflicts.
On Mon, 19 Aug 2019, lantianyu1...@gmail.com wrote:
> From: Tianyu Lan
>
> The struct hv_vp_assist_page was defined incorrectly.
> The "vtl_control" should be u64[3], "nested_enlightenments
s/The /The member/
> _control" should be a u64 and there is 7 reserved bytes
s/is/are/
> following "en
On Mon, 19 Aug 2019, lantianyu1...@gmail.com wrote:
> From: Tianyu Lan
>
> This patch adds
Same git grep command as before
> new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH and let
baseball cap? Please do not use weird acronyms. This is text and there is
not limitation on characters.
> user spac
From: Tianyu Lan
This patch adds new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH and let
user space to enable direct tlb flush function when only Hyper-V
hypervsior capability is exposed to VM. This patch also adds
enable_direct_tlbflush callback in the struct kvm_x86_ops and
platforms may use it to i
From: Tianyu Lan
The struct hv_vp_assist_page was defined incorrectly.
The "vtl_control" should be u64[3], "nested_enlightenments
_control" should be a u64 and there is 7 reserved bytes
following "enlighten_vmentry". This patch is to fix it.
Signed-off-by: Tianyu Lan
--
Change since v1:
From: Tianyu Lan
This patchset is to add Hyper-V direct tlb support in KVM. Hyper-V
in L0 can delegate L1 hypervisor to handle tlb flush request from
L2 guest when direct tlb flush is enabled in L1.
Patch 2 introduces new cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH to enable
feature from user space. User
On Mon, 19 Aug 2019 at 09:15, John Wang wrote:
>
> Add the driver to monitor Inspur Power System power supplies
> with hwmon over pmbus.
>
> This driver adds sysfs attributes for additional power supply data,
> including vendor, model, part_number, serial number,
> firmware revision, hardware revi
Add the driver to monitor Inspur Power System power supplies
with hwmon over pmbus.
This driver adds sysfs attributes for additional power supply data,
including vendor, model, part_number, serial number,
firmware revision, hardware revision, and psu mode(active/standby).
Signed-off-by: John Wang
On Fri, Aug 09, 2019 at 11:29:12AM +, Stefan-gabriel Mirea wrote:
> From: Stoica Cosmin-Stefan
>
> Add initial version of device tree for S32V234-EVB, including nodes for the
> 4 Cortex-A53 cores, AIPS bus with UART modules, ARM architected timer and
> Generic Interrupt Controller (GIC).
>
>
On Fri, Aug 09, 2019 at 11:29:10AM +, Stefan-gabriel Mirea wrote:
> From: Mihaela Martinas
>
> Add configuration option for the Freescale S32 platform family in
> Kconfig.platforms. For starters, the only SoC supported will be Treerunner
> (S32V234), with a single execution target: the S32V23
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