Hi,
v13 patch including:
1) rename mfd to ddata for SPI driver.
2) Patch RPC-IF devicetree for SPI and HyperFlash.
v12 patch including:
1) add back "wbuf" in dts example.
2) RPC-IF replace rpc-if in dts.
v11 patch including:
1) Patch mfd include header file.
2) mfd coding style.
3) add back wbuf
Add a driver for Renesas R-Car Gen3 RPC-IF MFD
Signed-off-by: Mason Yang
---
drivers/mfd/Kconfig | 9 +++
drivers/mfd/Makefile| 1 +
drivers/mfd/renesas-rpc.c | 125 +++
include/linux/mfd/renesas-rpc.h | 141 ++
Add a driver for Renesas R-Car Gen3 RPC-IF SPI controller.
Signed-off-by: Mason Yang
Signed-off-by: Sergei Shtylyov
---
drivers/spi/Kconfig | 6 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-renesas-rpc.c | 573 ++
3 files changed,
Document the bindings used by the Renesas R-Car Gen3 RPC-IF controller.
Signed-off-by: Mason Yang
---
.../devicetree/bindings/mfd/renesas-rpc-if.txt | 65 ++
1 file changed, 65 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/renesas-rpc-if.txt
dif
[ check_move_unevictable_pages() seems weird. It gets a pagevec from
find_get_entries(), which, if I understand the THP page cache code
correctly, might contain the same compound page over and over. It'll
be !unevictable after the first iteration, so will only run once. So
it produc
Looks ok to me, although for a fixed size argument the whole overflow
detection thing in struct_size() is rather pointless..
Le 21/05/2019 à 08:16, Masahiro Yamada a écrit :
With CONFIG_OPTIMIZE_INLINING enabled, Laura Abbott reported error
with gcc 9.1.1:
arch/powerpc/mm/book3s64/radix_tlb.c: In function '_tlbiel_pid':
arch/powerpc/mm/book3s64/radix_tlb.c:104:2: warning: asm operand 3 probably
doesn't match
On 21. 05. 19 7:37, Dmitry Torokhov wrote:
Hi Michal,
On Fri, May 17, 2019 at 03:12:49PM +0200, Michal Vokáč wrote:
Hi,
I have to deal with a situation where we have a custom i.MX6 based
platform in production that uses the MPR121 touchkey controller.
Unfortunately the chip is connected using
On Tue 21-05-19 08:36:28, Oleksandr Natalenko wrote:
[...]
> Regarding restricting the hints, I'm definitely interested in having
> remote MADV_MERGEABLE/MADV_UNMERGEABLE. But, OTOH, doing it via remote
> madvise() introduces another issue with traversing remote VMAs reliably.
> IIUC, one can do th
On Tue, May 21, 2019 at 7:09 AM Dmitry Torokhov
wrote:
>
> Hi Aaron,
>
> On Sun, May 19, 2019 at 03:27:11PM +0800, Aaron Ma wrote:
> > Lenovo ThinkPad X240 does not have the top software button.
> > When this wrong ID in top button list, smbus mode will fail to probe,
> > so keep it working at PS2
Hi Maxime
On Thu, Apr 18, 2019 at 4:56 PM Maxime Ripard wrote:
>
> On Thu, Apr 18, 2019 at 07:46:58PM +0530, Jagan Teki wrote:
> > Oceanic 5205 5inMFD has MCP2515 CAN device connected via SPI1.
> >
> > - via SPI1 bus
> > - vdd supplied by 5V supply along with PL2 enable pin
> > - xceiver supply s
Cc'ing Grzegorz.
On Tue, May 21, 2019 at 11:21:18AM +0800, Gen Zhang wrote:
> On Mon, May 20, 2019 at 10:55:40PM -0400, Nicolas Pitre wrote:
> > As soon as you release the lock, another thread could come along and
> > start using the memory pointed by vc_cons[currcons].d you're about to
> > free
On Tue 21-05-19 11:48:20, Minchan Kim wrote:
> On Mon, May 20, 2019 at 11:22:58AM +0200, Michal Hocko wrote:
> > [Cc linux-api]
> >
> > On Mon 20-05-19 12:52:53, Minchan Kim wrote:
> > > Currently, process_madvise syscall works for only one address range
> > > so user should call the syscall sever
This patch addes description of HEADER_BPF_PROG_INFO and HEADER_BPF_BTF to
perf.data-file-format.txt.
Signed-off-by: Song Liu
---
.../perf/Documentation/perf.data-file-format.txt | 16
1 file changed, 16 insertions(+)
diff --git a/tools/perf/Documentation/perf.data-file-format.
On May 20, 2019 1:07:42 PM GMT+02:00, Maxime Ripard
wrote:
>Hi!
>
>On Sat, May 18, 2019 at 07:09:30PM +0200, Luca Weiss wrote:
>> Add a node describing the KEYADC on the A64.
>>
>> Signed-off-by: Luca Weiss
>> ---
>> arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 7 +++
>> 1 file changed,
Hi,
On Tue, May 21, 2019 at 7:11 AM Dmitry Torokhov
wrote:
>
> Hi Aaron,
>
> On Sun, May 19, 2019 at 03:27:10PM +0800, Aaron Ma wrote:
> > Adding 2 new touchpad PNPIDs to enable middle button support.
>
> Could you add their names in the comments please?
>
> >
> > Cc: sta...@vger.kernel.org
> > S
On Tue, 21 May 2019 at 14:15, Chunyan Zhang wrote:
>
> sprd_clk_regmap_init() doesn't always return success, adding check
> for its return value should make the code more strong.
>
> Signed-off-by: Chunyan Zhang
Reviewed-by: Baolin Wang
> ---
> drivers/clk/sprd/sc9860-clk.c | 4 +++-
> 1 file
Hi Chunyan,
On Tue, 21 May 2019 at 14:15, Chunyan Zhang wrote:
>
> devm_ioremap_resources() automatically requests resources and devm_ wrappers
> do better error handling and unmapping of the I/O region when needed,
> that would make drivers more clean and simple.
>
> Signed-off-by: Chunyan Zhang
Hi.
On Tue, May 21, 2019 at 10:26:49AM +0900, Minchan Kim wrote:
> On Mon, May 20, 2019 at 04:26:33PM +0200, Oleksandr Natalenko wrote:
> > Hi.
> >
> > On Mon, May 20, 2019 at 12:52:51PM +0900, Minchan Kim wrote:
> > > This patch factor out madvise's core functionality so that upcoming
> > > patc
Hi, Dmitry
> -Original Message-
> From: dmitry.torok...@gmail.com [mailto:dmitry.torok...@gmail.com]
> Sent: Tuesday, May 21, 2019 1:31 PM
> To: Anson Huang
> Cc: shawn...@kernel.org; s.ha...@pengutronix.de;
> ker...@pengutronix.de; feste...@gmail.com; linux-in...@vger.kernel.org;
> linux
On Mon, May 20, 2019 at 11:25:28AM -0700, Paul Walmsley wrote:
> Some RISC-V systems include PCIe host controllers that support PCIe
> message-signaled interrupts. For this to work on Linux, we need to
> enable PCI_MSI_IRQ_DOMAIN and define struct msi_alloc_info. Support
> for the latter is enabl
The function pointer pm_power_off may point to function from other
module (PSCI for example). If rk808 is removed, pm_power_off is
overwritten to NULL and the system cannot be powered off.
This patch checks if pm_power_off points to a module function.
Signed-off-by: Stefan Mavrodiev
---
Changes
This patch is actually follow-up to:
[PATCH 1/1] mfd: rk808: Prepare rk8085 for poweroff
The patchset fixes poweroff function for boards with RK8085 PMU.
During the preparation of v2 possible wrong pointer access was
spot (pm_power_off), so one more patch was introduced in the series.
Stefan Ma
RK805 has SLEEP signal, which can put the device into SLEEP or OFF
mode. The default is SLEEP mode.
However, when the kernel performs power-off (actually the ATF) the
device will not go fully off and this will result in higher power
consumption and inability to wake the device with RTC alarm.
The
[linux-api]
On Mon 20-05-19 18:44:52, Matthew Wilcox wrote:
> On Mon, May 20, 2019 at 12:52:47PM +0900, Minchan Kim wrote:
> > IMHO we should spell it out that this patchset complements MADV_WONTNEED
> > and MADV_FREE by adding non-destructive ways to gain some free memory
> > space. MADV_COLD is
On Mon, May 20, 2019 at 04:39:04PM +, Quentin Deslandes wrote:
> Avoid discarding function's return code during register initialization.
> Handle it instead and return 0 on success or a negative errno value on
> error.
>
> Signed-off-by: Quentin Deslandes
> ---
> drivers/staging/vt6656/main_
[Cc linux-api]
On Tue 21-05-19 13:39:50, Minchan Kim wrote:
> On Mon, May 20, 2019 at 12:46:05PM -0400, Johannes Weiner wrote:
> > On Mon, May 20, 2019 at 12:52:47PM +0900, Minchan Kim wrote:
> > > - Approach
> > >
> > > The approach we chose was to use a new interface to allow userspace to
> > >
Commit 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).
The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, N
On Sun, May 19, 2019 at 11:55:42AM +0800, Weitao Hou wrote:
> fix lenght to length
>
> Signed-off-by: Weitao Hou
> ---
> Documentation/devicetree/bindings/usb/s3c2410-usb.txt | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
You sent 2 different patches that do different things, yet have
Hi.
On Fri, Apr 26, 2019 at 04:43:57PM +0200, Grzegorz Halat wrote:
> After memory allocation failure vc_allocate() doesn't clean up data
> which has been initialized in visual_init(). In case of fbcon this
> leads to divide-by-0 in fbcon_init() on next open of the same tty.
>
> memory allocation
On Tue 21-05-19 11:55:33, Minchan Kim wrote:
> On Mon, May 20, 2019 at 11:28:01AM +0200, Michal Hocko wrote:
> > [cc linux-api]
> >
> > On Mon 20-05-19 12:52:54, Minchan Kim wrote:
> > > System could have much faster swap device like zRAM. In that case,
> > > swapping
> > > is extremely cheaper t
To meet the 'i' (immediate) constraint for the asm operands,
this function must be always inlined.
Signed-off-by: Masahiro Yamada
---
arch/mips/include/asm/ginvt.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/ginvt.h b/arch/mips/include/asm/ginvt.h
i
With CONFIG_OPTIMIZE_INLINING enabled, Laura Abbott reported error
with gcc 9.1.1:
arch/powerpc/mm/book3s64/radix_tlb.c: In function '_tlbiel_pid':
arch/powerpc/mm/book3s64/radix_tlb.c:104:2: warning: asm operand 3 probably
doesn't match constraints
104 | asm volatile(PPC_TLBIEL(%0, %4,
Hi Masahiro,
On Tue, 21 May 2019 14:48:21 +0900 Masahiro Yamada
wrote:
>
> FYI.
> Commit 15e57a12d4df3c662f6cceaec6d1efa98a3d70f8
> is equivalent to commit ecebc5ce59a003163eb608ace38a01d7ffeb0a95
> which is already in the mainline.
>
> The former should be dropped, shouldn't it?
I have droppe
The function sprd_clk_regmap_init() doesn't always return success,
drivers should return immediately when it fails ranther than
continue the clock initialization.
The patch 2/2 in this set switchs to use devm_ioremap_resources()
instead of of_iomap(), that will make caller programs more simple.
C
sprd_clk_regmap_init() doesn't always return success, adding check
for its return value should make the code more strong.
Signed-off-by: Chunyan Zhang
---
drivers/clk/sprd/sc9860-clk.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/sprd/sc9860-clk.c b/drivers/
devm_ioremap_resources() automatically requests resources and devm_ wrappers
do better error handling and unmapping of the I/O region when needed,
that would make drivers more clean and simple.
Signed-off-by: Chunyan Zhang
---
drivers/clk/sprd/common.c | 9 +++--
1 file changed, 7 insertions
On Tue 21-05-19 11:41:07, Minchan Kim wrote:
> On Mon, May 20, 2019 at 11:18:29AM +0200, Michal Hocko wrote:
> > [Cc linux-api]
> >
> > On Mon 20-05-19 12:52:52, Minchan Kim wrote:
> > > There is some usecase that centralized userspace daemon want to give
> > > a memory hint like MADV_[COOL|COLD]
Microsoft seems to be more and more interested in GNU.
Do you not want to be part of that money?
Indeed, may I suggest a slight stylistic change of GNU, to GNÚ.
Peace,
YC.
On 21-05-19, 05:41, Robin Gong wrote:
> > -Original Message-
> > From: Vinod Koul
> > Sent: 2019年5月21日 13:13
> >
> > On 21-05-19, 04:58, Robin Gong wrote:
> > > > -Original Message-
> > > > From: Vinod Koul
> > > > Sent: 2019年5月21日 12:18
> > > >
> > > > On 07-05-19, 09:16, Robin
On Tue 21-05-19 08:00:38, Minchan Kim wrote:
> On Mon, May 20, 2019 at 10:27:03AM +0200, Michal Hocko wrote:
> > [Cc linux-api]
> >
> > On Mon 20-05-19 12:52:50, Minchan Kim wrote:
> > > When a process expects no accesses to a certain memory range
> > > for a long time, it could hint kernel that t
From: Wanpeng Li
Commit b31c114b (KVM: X86: Provide a capability to disable PAUSE intercepts)
forgot to add the KVM_X86_DISABLE_EXITS_PAUSE into api doc. This patch adds
it.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: Sean Christopherson
Cc: Liran Alon
Signed-off-by: Wanpeng Li
---
Documentati
From: Wanpeng Li
Allow guest reads CORE cstate when exposing host CPU power management
capabilities
to the guest. PKG cstate is restricted to avoid a guest to get the whole
package
information in multi-tenant scenario.
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: Sean Christopherson
Cc: Liran A
From: Wanpeng Li
MSR IA32_MISC_ENABLE bit 18, according to SDM:
| When this bit is set to 0, the MONITOR feature flag is not set
(CPUID.01H:ECX[bit 3] = 0).
| This indicates that MONITOR/MWAIT are not supported.
|
| Software attempts to execute MONITOR/MWAIT will cause #UD when this bit is 0.
|
On Tue 21-05-19 07:54:19, Minchan Kim wrote:
> On Mon, May 20, 2019 at 10:16:21AM +0200, Michal Hocko wrote:
[...]
> > > Internally, it works via deactivating memory from active list to
> > > inactive's head so when the memory pressure happens, they will be
> > > reclaimed earlier than other active
On Thu, May 16, 2019 at 8:39 AM Song Liu wrote:
>
> On Thu, May 16, 2019 at 4:24 AM Marcos Paulo de Souza
> wrote:
> >
> > ping.
> >
Applied to https://github.com/liu-song-6/linux/tree/md-next.
>
> Thanks for the patch. I will process it after the merge window closes.
>
> Song
>
> > On Thu, May
On Mon, May 20, 2019 at 07:23:43PM +0200, Paolo Bonzini wrote:
> On 20/05/19 18:44, Michal Kubecek wrote:
> > Recently introduced functions kvm_vcpu_map() and kvm_vcpu_unmap() call
> > memremap() and memunmap() which are only available if HAS_IOMEM is enabled
> > but this dependency is not explicit
On Mon, May 20, 2019 at 2:45 PM Marcos Paulo de Souza
wrote:
>
> This return statement was introduced in commit
> 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ("Linux-2.6.12-rc2") and can be
> safely removed.
Wow, that's a really old commit. :)
I think 3/4 and 4/4 of the set makes git-blame more dif
On Mon, May 20, 2019 at 03:45:29PM -0700, Bjorn Andersson wrote:
> On Mon, May 20, 2019 at 9:44 AM Michal Kubecek wrote:
> >
> > Recently introduced functions kvm_vcpu_map() and kvm_vcpu_unmap() call
> > memremap() and memunmap() which are only available if HAS_IOMEM is enabled
> > but this depend
it?
Thanks.
>
> Changes since 20190520:
>
> New trees: soc-fsl, soc-fsl-fixes
>
> Removed trees: (not updated for more than a year)
> alpine, samsung, sh, befs, kconfig, dwmw2-iommu, trivial,
> target-updates, target-bva, init_task
>
> The imx-mxs
Hello Stephen,
I have incorporated review comments from
https://patchwork.kernel.org/patch/10917171/
A gentle reminder to apply the patch
https://patchwork.kernel.org/patch/10918407/.
Regards,
Vabhav
> -Original Message-
> From: Vabhav Sharma
> Sent: Friday, April 26, 2019 12:24 PM
>
> -Original Message-
> From: Vinod Koul
> Sent: 2019年5月21日 13:13
>
> On 21-05-19, 04:58, Robin Gong wrote:
> > > -Original Message-
> > > From: Vinod Koul
> > > Sent: 2019年5月21日 12:18
> > >
> > > On 07-05-19, 09:16, Robin Gong wrote:
> > > > Because the number of ecspi1 rx event
On Wed, May 15, 2019 at 6:33 PM Niklas Cassel wrote:
>
> On Wed, May 15, 2019 at 03:43:19PM +0530, Amit Kucheria wrote:
> > On Tue, May 14, 2019 at 9:42 PM Niklas Cassel
> > wrote:
> > >
> > > On Fri, May 10, 2019 at 04:59:42PM +0530, Amit Kucheria wrote:
> > > > Instead of using Qualcomm-specif
Hi all,
Commit
5d32a77c6e2e ("arm64: dts: meson-g12a: Add PWM nodes")
is missing a Signed-off-by from its committer.
--
Cheers,
Stephen Rothwell
pgpBisrW4v1Uo.pgp
Description: OpenPGP digital signature
Hi Michal,
On Fri, May 17, 2019 at 03:12:49PM +0200, Michal Vokáč wrote:
> Hi,
>
> I have to deal with a situation where we have a custom i.MX6 based
> platform in production that uses the MPR121 touchkey controller.
> Unfortunately the chip is connected using only the I2C interface.
> The interr
On Sat, May 18, 2019 at 06:55:10PM +0200, stefano.ma...@gmail.com wrote:
> Hi Dmitry,
>
> On Fri, 2019-05-17 at 14:30 -0700, Dmitry Torokhov wrote:
> > Hi Sefano,
> >
> > On Fri, May 17, 2019 at 11:17:40PM +0200, Stefano Manni wrote:
> > > Add wakeup support to the maxtouch driver.
> > > The devi
On Mon, May 6, 2019 at 4:57 PM Yash Shah wrote:
>
> The initial ver of EDAC driver supports:
> - ECC event monitoring and reporting through the EDAC framework for SiFive
> L2 cache controller.
>
> The EDAC driver registers for notifier events from the L2 cache controller
> driver (arch/riscv/mm/
On Mon, 20 May 2019 11:56:07 +0200,
Takashi Iwai wrote:
>
> On Mon, 20 May 2019 11:39:29 +0200,
> Greg Kroah-Hartman wrote:
> >
> > On Mon, May 20, 2019 at 11:26:42AM +0200, Takashi Iwai wrote:
> > > Hi,
> > >
> > > this is a patch set to add the support for loading compressed firmware
> > > fil
Hi Anson,
On Thu, Apr 04, 2019 at 01:40:16AM +, Anson Huang wrote:
> There are several scenarios that keyboard can NOT wake up system
> from suspend, e.g., if a keyboard is depressed between system
> device suspend phase and device noirq suspend phase, the keyboard
> ISR will be called and both
On Tue, 21 May 2019 00:37:48 +0200,
Kees Cook wrote:
>
> As it turns out, the "stdbuf" command will actually force all
> subprocesses into unbuffered output, and some implementations of "echo"
> turn into single-character writes, which utterly wrecks writes to /sys
> and /proc files.
>
> Instead,
On Tue, May 21, 2019 at 12:49:59AM +0200, Janusz Krzysztofik wrote:
> Commit 23a52386fabe ("media: ov6650: convert to standalone v4l2
> subdevice") converted the driver from a soc_camera sensor to a
> standalone V4L subdevice driver. Unfortunately, module description was
> not updated to reflect t
> diff --git a/arch/powerpc/include/asm/mem_encrypt.h
> b/arch/powerpc/include/asm/mem_encrypt.h
> new file mode 100644
> index ..45d5e4d0e6e0
> --- /dev/null
> +++ b/arch/powerpc/include/asm/mem_encrypt.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * SVM he
On Mon, Apr 01, 2019 at 05:19:55AM +, Anson Huang wrote:
> Use the new helper devm_platform_ioremap_resource() which wraps the
> platform_get_resource() and devm_ioremap_resource() together, to
> simplify the code.
>
> Signed-off-by: Anson Huang
Applied, thank you.
> ---
> drivers/input/to
On Tue, May 21, 2019 at 01:49:02AM -0300, Thiago Jung Bauermann wrote:
> From: Benjamin Herrenschmidt
>
> For secure VMs, the signing tool will create a ticket called the "ESM blob"
> for the Enter Secure Mode ultravisor call with the signatures of the kernel
> and initrd among other things.
>
>
On 5/21/19 7:54 AM, Jaskaran Khurana wrote:
> Adds in-kernel pkcs7 signature checking for the roothash of
> the dm-verity hash tree.
>
> The verification is to support cases where the roothash is not secured by
> Trusted Boot, UEFI Secureboot or similar technologies.
> One of the use cases for
On Tue, May 21, 2019 at 08:25:55AM +0530, Anshuman Khandual wrote:
>
>
> On 05/20/2019 10:29 PM, Tim Murray wrote:
> > On Sun, May 19, 2019 at 11:37 PM Anshuman Khandual
> > wrote:
> >>
> >> Or Is the objective here is reduce the number of processes which get
> >> killed by
> >> lmkd by trigger
Hi all,
Changes since 20190520:
New trees: soc-fsl, soc-fsl-fixes
Removed trees: (not updated for more than a year)
alpine, samsung, sh, befs, kconfig, dwmw2-iommu, trivial,
target-updates, target-bva, init_task
The imx-mxs tree gained a build failure so I used the version from
On 21-05-19, 04:58, Robin Gong wrote:
> > -Original Message-
> > From: Vinod Koul
> > Sent: 2019年5月21日 12:18
> >
> > On 07-05-19, 09:16, Robin Gong wrote:
> > > Because the number of ecspi1 rx event on i.mx8mm is 0, the condition
> > > check ignore such special case without dma channel en
On Mon, Apr 01, 2019 at 05:28:12AM +, Anson Huang wrote:
> Use the new helper devm_platform_ioremap_resource() which wraps the
> platform_get_resource() and devm_ioremap_resource() together, to
> simplify the code.
>
> Signed-off-by: Anson Huang
Applied, thank you.
> ---
> drivers/input/ke
Hi Aaron,
On Sun, May 19, 2019 at 03:27:10PM +0800, Aaron Ma wrote:
> Adding 2 new touchpad PNPIDs to enable middle button support.
Could you add their names in the comments please?
>
> Cc: sta...@vger.kernel.org
> Signed-off-by: Aaron Ma
> ---
> drivers/input/mouse/elantech.c | 2 ++
> 1 fil
fix lenght to length
Signed-off-by: Weitao Hou
---
Changes in v3:
- fix all other same typos with git grep
---
.../devicetree/bindings/usb/s3c2410-usb.txt| 2 +-
.../wireless/mediatek/mt76/mt76x02_usb_core.c | 2 +-
kernel/sysctl.c| 18 +-
s
Hi Aaron,
On Sun, May 19, 2019 at 03:27:11PM +0800, Aaron Ma wrote:
> Lenovo ThinkPad X240 does not have the top software button.
> When this wrong ID in top button list, smbus mode will fail to probe,
> so keep it working at PS2 mode.
>
> Cc: sta...@vger.kernel.org
> Signed-off-by: Aaron Ma
> -
On 5/20/2019 11:27 PM, Bjorn Helgaas wrote:
On Sat, May 18, 2019 at 07:28:29AM +0530, Vidya Sagar wrote:
On 5/18/2019 12:25 AM, Bjorn Helgaas wrote:
On Fri, May 17, 2019 at 11:23:36PM +0530, Vidya Sagar wrote:
On 5/17/2019 6:54 PM, Bjorn Helgaas wrote:
Do you have "lspci -vvxxx" output for th
On Mon, May 20, 2019 at 06:44:52PM -0700, Matthew Wilcox wrote:
> On Mon, May 20, 2019 at 12:52:47PM +0900, Minchan Kim wrote:
> > IMHO we should spell it out that this patchset complements MADV_WONTNEED
> > and MADV_FREE by adding non-destructive ways to gain some free memory
> > space. MADV_COLD
From: Anshuman Khandual
Secure guests need to share the DTL buffers with the hypervisor. To that
end, use a kmem_cache constructor which converts the underlying buddy
allocated SLUB cache pages into shared memory.
Signed-off-by: Anshuman Khandual
Signed-off-by: Thiago Jung Bauermann
---
arch/
> -Original Message-
> From: Vinod Koul
> Sent: 2019年5月21日 12:18
>
> On 07-05-19, 09:16, Robin Gong wrote:
> > Because the number of ecspi1 rx event on i.mx8mm is 0, the condition
> > check ignore such special case without dma channel enabled, which
> > caused
> > ecspi1 rx works failed.
Introduce CONFIG_PPC_SVM to control support for secure guests and include
Ultravisor-related helpers when it is selected
Signed-off-by: Thiago Jung Bauermann
---
arch/powerpc/include/asm/ultravisor.h | 2 +-
arch/powerpc/kernel/Makefile | 4 +++-
arch/powerpc/platforms/pseries/Kconf
On 08-05-19, 23:33, Colin King wrote:
> From: Colin Ian King
>
> In the unlikely event that axi_desc_get returns a null desc in the
> very first iteration of the while-loop the error exit path ends
> up calling axi_desc_put on a null pointer 'first' and this causes
> a null pointer dereference.
From: Benjamin Herrenschmidt
For secure VMs, the signing tool will create a ticket called the "ESM blob"
for the Enter Secure Mode ultravisor call with the signatures of the kernel
and initrd among other things.
This adds support to the wrapper script for adding that blob via the "-e"
option to
From: Sukadev Bhattiprolu
Normally, the HV emulates some instructions like MSGSNDP, MSGCLRP
from a KVM guest. To emulate the instructions, it must first read
the instruction from the guest's memory and decode its parameters.
However for a secure guest (aka SVM), the page containing the
instructi
On 08-05-19, 10:24, Jon Hunter wrote:
>
> On 05/05/2019 19:12, Dmitry Osipenko wrote:
> > The DMA_PREP_INTERRUPT flag means that descriptor's callback should be
> > invoked upon transfer completion and that's it. For some reason driver
> > completely disables the hardware interrupt handling, leavi
From: Anshuman Khandual
SWIOTLB checks range of incoming CPU addresses to be bounced and sees if
the device can access it through its DMA window without requiring bouncing.
In such cases it just chooses to skip bouncing. But for cases like secure
guests on powerpc platform all addresses need to b
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
fs/aio.c | 5 +++--
fs/coredump.c | 5 +++--
fs/exec.c | 19 +--
From: Ryan Grimm
Enables running as a secure guest in platforms with an Ultravisor.
Signed-off-by: Ryan Grimm
Signed-off-by: Ram Pai
Signed-off-by: Thiago Jung Bauermann
---
arch/powerpc/configs/ppc64_defconfig | 1 +
arch/powerpc/configs/pseries_defconfig | 1 +
2 files changed, 2 inserti
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
drivers/android/binder_alloc.c | 7 ---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 ++--
drivers/gpu
With mmrange now in place and everyone using the mm
locking wrappers, we can convert the rwsem to a the
range locking scheme. Every single user of mmap_sem
will use a full range, which means that there is no
more parallelism than what we already had. This is
the worst case scenario.
Prefetching an
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time, and we already
have vmf updated. No changes in semantics.
Signed-off-by: Davidlohr Bueso
---
include/linux/mm.h | 8 +++---
mm/filemap.c | 8 +++---
mm/frame_vector.c | 4
This implements a sleepable range rwlock, based on interval tree, serializing
conflicting/intersecting/overlapping ranges within the tree. The largest range
is given by [0, ~0] (inclusive). Unlike traditional locks, range locking
involves dealing with the tree itself and the range to be locked, nor
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
kernel/acct.c | 5 +++--
kernel/bpf/stackmap.c | 7 +--
kernel/events/core.c| 5 +++--
kernel/event
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
ipc/shm.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/ipc/shm.c b/ipc/shm.c
index ce1ca9f7c6e9..366
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
arch/x86/entry/vdso/vma.c | 12 +++-
arch/x86/kernel/vm86_32.c | 5 +++--
arch/x86/kvm/paging_tmpl.h | 9 +
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
virt/kvm/arm/mmu.c | 17 ++---
virt/kvm/async_pf.c | 4 ++--
virt/kvm/kvm_main.c | 11 ++-
3 files changed, 18 i
Conversion is straightforward, mmap_sem is used within the
the same function context most of the time. No change in
semantics.
Signed-off-by: Davidlohr Bueso
---
net/ipv4/tcp.c | 5 +++--
net/xdp/xdp_umem.c | 5 +++--
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/net/ipv4/tc
Secure guest memory is inacessible to devices so regular DMA isn't
possible.
In that case set devices' dma_map_ops to NULL so that the generic
DMA code path will use SWIOTLB and DMA to bounce buffers.
Signed-off-by: Thiago Jung Bauermann
---
arch/powerpc/platforms/pseries/iommu.c | 6 +-
1
This patch is a collection of hacks that shamelessly remove
mmap_sem state checks in order to not have to teach file_operations
about range locking; for thp and huge pagecache: By dropping the
rwsem_is_locked checks in zap_pmd_range() and zap_pud_range() we can
avoid having to teach file_operations
This patch adds the necessary wrappers to encapsulate mmap_sem
locking and will enable any future changes to be a lot more
confined to here. In addition, future users will incrementally
be added in the next patches. mm_[read/write]_[un]lock() naming
is used.
Signed-off-by: Davidlohr Bueso
---
in
When handling a page fault, it happens that the mmap_sem is released
during the processing. As moving to range lock requires remembering
the range parameter to do the lock/unlock, this patch adds a pointer
to struct vm_fault. As such, we work outwards from arming the vmf from:
handle_mm_fault(),
From: Ryan Grimm
User space might want to know it's running in a secure VM. It can't do
a mfmsr because mfmsr is a privileged instruction.
The solution here is to create a cpu attribute:
/sys/devices/system/cpu/svm
which will read 0 or 1 based on the S bit of the guest's CPU 0.
Signed-off-by
Hi,
The following is a summarized repost of the range locking mmap_sem idea[1]
and is _not_ intended for being considered upstream as there are quite a few
issues that arise with this approach of tackling mmap_sem contention (keep
reading).
In fact this patch is quite incomplete and will break c
In preparation for range locking, this patch gets rid of
CONFIG_INTERVAL_TREE option as we will unconditionally
build it.
Signed-off-by: Davidlohr Bueso
---
drivers/gpu/drm/Kconfig | 2 --
drivers/gpu/drm/i915/Kconfig | 1 -
drivers/iommu/Kconfig| 1 -
lib/Kconfig
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