Instead of resorting to BUG() ensure that the driver isn't unbound by
suppressing its bind and unbind sysfs attributes. As the driver is
built-in there is no way to remove a device once bound.
As a nice side effect this allows to drop the remove function.
Signed-off-by: Uwe Kleine-König
---
arc
/*
@@ -1310,7 +1400,10 @@ int __ref add_memory_resource(int nid, struct resource
*res, mhp_t mhp_flags)
{
struct mhp_params params = { .pgprot = pgprot_mhp(PAGE_KERNEL) };
enum memblock_flags memblock_flags = MEMBLOCK_NONE;
- struct vmem_altmap mhp_altmap = {};
+
On 2023/7/25 1:21, Jason Gunthorpe wrote:
Except for dart every driver returns 0 or IDENTITY from def_domain_type().
The drivers that return IDENTITY have some kind of good reason, typically
that quirky hardware really can't support anything other than IDENTITY.
Arrange things so that if the dr
On 25.07.23 12:02, Aneesh Kumar K.V wrote:
With memmap on memory, some architecture needs more details w.r.t altmap
such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
computing them again when we remove a memory block, embed vmem_altmap
details in struct memory_block if we are usi
On 2023/7/25 1:22, Jason Gunthorpe wrote:
All drivers are now using IDENTITY or PLATFORM domains for what this did,
we can remove it now. It is no longer possible to attach to a NULL domain.
Tested-by: Heiko Stuebner
Tested-by: Niklas Schnelle
Tested-by: Steven Price
Tested-by: Marek Szyprowski
On 2023/7/25 1:22, Jason Gunthorpe wrote:
At this point every iommu driver will cause a default_domain to be
selected, so we can finally remove this gap from the core code.
The following table explains what each driver supports and what the
resulting default_domain will be:
On 2023/7/25 1:22, Jason Gunthorpe wrote:
Allocate a domain from a group. Automatically obtains the iommu_ops to use
from the device list of the group. Convert the internal callers to use it.
Tested-by: Steven Price
Tested-by: Marek Szyprowski
Tested-by: Nicolin Chen
Signed-off-by: Jason Gunthor
On 7/26/23 2:34 PM, David Hildenbrand wrote:
>
/*
@@ -1310,7 +1400,10 @@ int __ref add_memory_resource(int nid, struct
resource *res, mhp_t mhp_flags)
{
struct mhp_params params = { .pgprot = pgprot_mhp(PAGE_KERNEL) };
enum memblock_flags memblock
On 2023/7/25 1:22, Jason Gunthorpe wrote:
This callback requests the driver to create only a __IOMMU_DOMAIN_PAGING
domain, so it saves a few lines in a lot of drivers needlessly checking
the type.
More critically, this allows us to sweep out all the
IOMMU_DOMAIN_UNMANAGED and IOMMU_DOMAIN_DMA ch
David Hildenbrand writes:
> On 25.07.23 12:02, Aneesh Kumar K.V wrote:
>> With memmap on memory, some architecture needs more details w.r.t altmap
>> such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
>> computing them again when we remove a memory block, embed vmem_altmap
>> deta
>From 81719b31a4e86d2f7352da653175b7c508a94303 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V"
Date: Wed, 26 Jul 2023 13:45:28 +0530
Subject: [PATCH] mm/debug_vm_pgtable: Use the new
has_transparent_pud_hugepage()
Use the new helper to check pud hugepage support. Architecture like ppc64
will e
Hi Sean,
On 7/24/2023 10:30 PM, Sean Christopherson wrote:
> On Mon, Jul 24, 2023, Nikunj A. Dadhania wrote:
>> On 7/19/2023 5:14 AM, Sean Christopherson wrote:
>>> This is the next iteration of implementing fd-based (instead of vma-based)
>>> memory for KVM guests. If you want the full backgroun
On Tue, Jul 25, 2023 at 01:51:55PM +0100, Matthew Wilcox wrote:
> On Tue, Jul 25, 2023 at 01:24:03PM +0300, Kirill A . Shutemov wrote:
> > On Tue, Jul 18, 2023 at 04:44:53PM -0700, Sean Christopherson wrote:
> > > diff --git a/mm/compaction.c b/mm/compaction.c
> > > index dbc9f86b1934..a3d2b132df52
在 2023/7/12 10:52, Wang Ming 写道:
> The debugfs_create_dir() function returns error pointers.
> It never returns NULL. Most incorrect error checks were fixed,
> but the one in scom_debug_init() was forgotten, the other one in
> scom_debug_init_one() was also forgotten.
>
> Fix the remaining error ch
On Tue, Jul 25, 2023 at 07:39:51PM +0100, David Howells wrote:
> Florian Weimer wrote:
>
> > > Rather than adding a fchmodat2() syscall, should we add a
> > > "set_file_attrs()" syscall that takes a mask and allows you to set a bunch
> > > of stuff all in one go? Basically, an interface to notif
On Wed, Jul 26, 2023 at 02:36:25AM +1000, Aleksa Sarai wrote:
> On 2023-07-11, Alexey Gladkov wrote:
> > On the userspace side fchmodat(3) is implemented as a wrapper
> > function which implements the POSIX-specified interface. This
> > interface differs from the underlying kernel system call, whi
>From 9252360e483246e13e6bb28cd6773af2b99eeb55 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V"
Date: Wed, 26 Jul 2023 10:54:14 +0530
Subject: [PATCH] -next build fixup
Fix build error
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/book3s/64/radix.h | 2 ++
1 file changed, 2 i
On Wed, Jul 26, 2023, Nikunj A. Dadhania wrote:
> Hi Sean,
>
> On 7/24/2023 10:30 PM, Sean Christopherson wrote:
> >> Starting an SNP guest with 40G memory with memory interleave between
> >> Node2 and Node3
> >>
> >> $ numactl -i 2,3 ./bootg_snp.sh
> >>
> >> PID USER PR NIVIRT
On Mon, Jul 24, 2023 at 09:41:36PM -0700, Hugh Dickins wrote:
> On Mon, 24 Jul 2023, Vishal Moola (Oracle) wrote:
>
> > The MM subsystem is trying to shrink struct page. This patchset
> > introduces a memory descriptor for page table tracking - struct ptdesc.
> >
> > This patchset introduces ptde
Hi,
I have a system where I need to handle an HDLC interface and some audio
data.
The HDLC data are transferred using a TDM bus on which a PEF2256
(E1/T1 framer) is present. The PEF2256 transfers data from/to the TDM
bus to/from the E1 line. This PEF2256 is connected to a PowerQUICC SoC
for the c
Running sparse (make C=1) on qmc.c raises a lot of warning such as:
...
warning: incorrect type in assignment (different address spaces)
expected struct cpm_buf_desc [usertype] *[noderef] __iomem bd
got struct cpm_buf_desc [noderef] [usertype] __iomem *txbd_free
...
Indeed, some va
Running sparse (make C=1) on tsa.c raises a lot of warning such as:
--- 8< ---
warning: incorrect type in assignment (different address spaces)
expected void *[noderef] si_regs
got void [noderef] __iomem *
--- 8< ---
Indeed, some variable were declared 'type *__iomem var' instead o
The qmc_chan_reset_rx() set the is_rx_stopped flag. This leads to an
inconsistent state in the following sequence.
qmc_chan_stop()
qmc_chan_reset()
Indeed, after the qmc_chan_reset() call, the channel must still be
stopped. Only a qmc_chan_start() call can move the channel from stopped
stat
In HDLC mode, some status flags related to the data read transfer can be
set by the hardware and need to be known by a QMC consumer for further
analysis.
Extend the API in order to provide these transfer status flags at the
read complete() call.
In TRANSPARENT mode, these flags have no meaning. K
The QMC (QUICC mutichannel controller) is a controller present in some
PowerQUICC SoC such as MPC885.
The QMC HDLC uses the QMC controller to transfer HDLC data.
Signed-off-by: Herve Codina
---
.../devicetree/bindings/net/fsl,qmc-hdlc.yaml | 41 +++
1 file changed, 41 insertions(
The QMC HDLC driver provides support for HDLC using the QMC (QUICC
Multichannel Controller) to transfer the HDLC data.
Signed-off-by: Herve Codina
---
drivers/net/wan/Kconfig| 12 +
drivers/net/wan/Makefile | 1 +
drivers/net/wan/fsl_qmc_hdlc.c | 422
After contributing the driver, add myself as the maintainer for the
Freescale QMC HDLC driver.
Signed-off-by: Herve Codina
---
MAINTAINERS | 8
1 file changed, 8 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index aee340630eca..14041d90f9c8 100644
--- a/MAINTAINERS
+++ b/MAINTAI
Available timeslots masks define timeslots available for the related
channel. These timeslots are defined by the QMC binding.
Timeslots used are initialized to available timeslots but can be a
subset of available timeslots.
This prepares the dynamic timeslots management (ie. changing timeslots
at
qmc_setup_tsa* are called once at initialisation.
They initialize the QMC TSA table.
In order to introduce setup function later on for dynamic timeslots
management, rename the function to avoid later confusion.
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 16
1 fil
Introduce the qmc_chan_setup_tsa* functions to setup entries related
to the given channel.
Use them during QMC channels setup.
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 161 ++-
1 file changed, 125 insertions(+), 36 deletions(-)
diff --git a/
The newly introduced qmc_chan_setup_tsa* functions check that the
channel entries are not already used.
These checks are also performed by qmc_check_chans() and are no more
needed.
Remove them from qmc_check_chans().
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 20
The timeslots checked in qmc_check_chans() are the timeslots used.
With the introduction of the available timeslots, the used timeslots
are a subset of the available timeslots. The timeslots checked during
the qmc_check_chans() call should be the available ones.
Simply update and check the availab
In order to allow runtime timeslot route changes, disabling channel TSA
entries needs to be supported.
Add support for this new feature.
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 20 +++-
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/soc
The Tx and Rx entries for a given channel are set in one function.
In order to modify Rx entries and Tx entries independently of one other,
split this function in one for the Rx part and one for the Tx part.
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 49 +
In order to support runtime timeslot route changes, some operations will
be different according the routing table used (common Rx and Tx table or
one table for Rx and one for Tx).
The is_tsa_64rxtx flag is introduced to avoid extra computation to
determine the table format each time we need it.
It
In order to support runtime timeslot route changes, enable the
channel timeslot entries at channel start() and disable them at
channel stop().
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 175 ---
1 file changed, 163 insertions(+), 12 deletions(-
Timeslots setting is done at channel start() and stop().
There is no more need to do that during setup_chan().
Simply remove timeslot setting from setup_chan().
Signed-off-by: Herve Codina
---
drivers/soc/fsl/qe/qmc.c | 28
1 file changed, 28 deletions(-)
diff --gi
Introduce qmc_chan_{get,set}_ts_info() function to allow timeslots
modification at runtime.
The modification is provided using qmc_chan_set_ts_info() and will be
applied on next qmc_chan_start().
qmc_chan_set_ts_info() must be called with the channel rx and/or tx
stopped.
Signed-off-by: Herve Cod
QMC channels support runtime timeslots changes but nothing is done at
the QMC HDLC driver to handle these changes.
Use existing IFACE ioctl in order to configure the timeslots to use.
Signed-off-by: Herve Codina
---
drivers/net/wan/fsl_qmc_hdlc.c | 169 -
1 file
A framer is a component in charge of an E1/T1 line interface.
Connected usually to a TDM bus, it converts TDM frames to/from E1/T1
frames. It also provides information related to the E1/T1 line.
The framer framework provides a set of APIs for the framer drivers
(framer provider) to create/destroy
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
Signed-off-by: Herve Codina
---
.../bindings/net/lantiq,pef2256.yaml | 226 ++
1 file ch
The loop searching for a matching device based on its compatible
string is aborted when a matching disabled device is found.
This abort avoid to add devices as soon as one disabled device
is found.
Continue searching for an other device instead of aborting on the
first disabled one fixes the issue
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
Signed-off-by: Herve Codina
---
drivers/net/wan/framer/Kconfig| 16 +
drivers/net/wan/framer/Mak
The Lantiq PEF2256 is a framer and line interface component designed to
fulfill all required interfacing between an analog E1/T1/J1 line and the
digital PCM system highway/H.100 bus.
This pinmux support handles the pin muxing part (pins RP(A..D) and pins
XP(A..D)) of the PEF2256.
Signed-off-by: H
After contributing the driver, add myself as the maintainer for the
Lantiq PEF2256 driver.
Signed-off-by: Herve Codina
---
MAINTAINERS | 9 +
1 file changed, 9 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 14041d90f9c8..07a7d9fca3c4 100644
--- a/MAINTAINERS
+++ b/MAINTAINER
The framer codec interracts with a framer.
It allows to use some of the framer timeslots as audio channels to
transport audio data over the framer E1/T1/J1 lines.
It also reports line carrier detection events through the ALSA jack
detection feature.
Signed-off-by: Herve Codina
---
sound/soc/code
A framer can be connected to the QMC HDLC.
If present, this framer is the interface between the TDM used by the QMC
HDLC and the E1/T1 line.
The QMC HDLC can use this framer to get information about the line and
configure the line.
Add an optional framer property to reference the framer itself.
S
Add framer support in the fsl_qmc_hdlc driver in order to be able to
signal carrier changes to the network stack based on the framer status
Also use this framer to provide information related to the E1/T1 line
interface on IF_GET_IFACE and configure the line interface according to
IF_IFACE_{E1,T1}
On Mon, Jul 24, 2023, Xu Yilun wrote:
> On 2023-07-18 at 16:44:51 -0700, Sean Christopherson wrote:
> > @@ -1346,6 +1350,9 @@ static void kvm_destroy_vm(struct kvm *kvm)
> > kvm_free_memslots(kvm, &kvm->__memslots[i][0]);
> > kvm_free_memslots(kvm, &kvm->__memslots[i][1]);
>
Running sparse on fsl_qmc_audio (make C=1) raises the following warnings:
fsl_qmc_audio.c:387:26: warning: restricted snd_pcm_format_t degrades to
integer
fsl_qmc_audio.c:389:59: warning: incorrect type in argument 1 (different base
types)
fsl_qmc_audio.c:389:59:expected restricted snd_pcm
On 26.07.23 11:57, Aneesh Kumar K V wrote:
On 7/26/23 2:34 PM, David Hildenbrand wrote:
/*
@@ -1310,7 +1400,10 @@ int __ref add_memory_resource(int nid, struct resource
*res, mhp_t mhp_flags)
{
struct mhp_params params = { .pgprot = pgprot_mhp(PAGE_KERNEL) };
enum memb
On 26.07.23 12:31, Aneesh Kumar K.V wrote:
David Hildenbrand writes:
On 25.07.23 12:02, Aneesh Kumar K.V wrote:
With memmap on memory, some architecture needs more details w.r.t altmap
such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
computing them again when we remove a mem
On Tue, Jul 11, 2023 at 06:16:02PM +0200, Alexey Gladkov wrote:
> In glibc, the fchmodat(3) function has a flags argument according to the
> POSIX specification [1], but kernel syscalls has no such argument.
> Therefore, libc implementations do workarounds using /proc. However,
> this requires proc
On Wed, 26 Jul 2023 10:59:32 +0530 Aneesh Kumar K V
wrote:
> On 7/26/23 12:59 AM, Andrew Morton wrote:
> > On Tue, 25 Jul 2023 00:37:46 +0530 "Aneesh Kumar K.V"
> > wrote:
> >
> >> This patch series implements changes required to support DAX vmemmap
> >> optimization for ppc64.
> >
> > Do we
On Wed, Jul 26, 2023, Elliot Berman wrote:
>
>
> On 7/18/2023 4:44 PM, Sean Christopherson wrote:
> > TODO
>
> > diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
> > index 6325d1d0e90f..15041aa7d9ae 100644
> > --- a/include/uapi/linux/magic.h
> > +++ b/include/uapi/linux/mag
On Wed, Jul 19, 2023, Paolo Bonzini wrote:
> On 7/19/23 01:44, Sean Christopherson wrote:
> > + BUILD_BUG_ON(sizeof(gfn_range.arg) != sizeof(gfn_range.arg.raw));
> > + BUILD_BUG_ON(sizeof(range->arg) != sizeof(range->arg.raw));
>
> I think these should be static assertions near the definition
On Wed, 26 Jul 2023 18:16:20 +0200, Herve Codina wrote:
> Running sparse on fsl_qmc_audio (make C=1) raises the following warnings:
> fsl_qmc_audio.c:387:26: warning: restricted snd_pcm_format_t degrades to
> integer
> fsl_qmc_audio.c:389:59: warning: incorrect type in argument 1 (different
> b
On Tue, 23 May 2023 02:14:25 +, Azeem Shaikh wrote:
> strlcpy() reads the entire source buffer first.
> This read may exceed the destination size limit.
> This is both inefficient and can lead to linear read
> overflows if a source string is not NUL-terminated [1].
> In an effort to remove st
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there
On Thu, Jul 06, 2023 at 05:50:57PM +1000, Jordan Niethe wrote:
>
>
> On 30/6/23 3:56 pm, Gautam Menghani wrote:
> > Remove an unnecessary piece of code that does an endianness conversion but
> > does not use the result. The following warning was reported by Clang's
> > static analyzer:
> >
> > a
On Thu, Jul 06, 2023 at 05:50:57PM +1000, Jordan Niethe wrote:
>
>
> On 30/6/23 3:56 pm, Gautam Menghani wrote:
> > Remove an unnecessary piece of code that does an endianness conversion but
> > does not use the result. The following warning was reported by Clang's
> > static analyzer:
> >
> > a
On 7/18/2023 4:44 PM, Sean Christopherson wrote:
TODO
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 6325d1d0e90f..15041aa7d9ae 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -101,5 +101,6 @@
#define DMA_BUF_MAGIC 0x444d414
Hi Rob,
On Fri, Jul 14, 2023 at 11:46:16AM -0600, Rob Herring wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping Arm DT support 13 years ago, they
> "temporarily" include
MICFIL IP is upgraded on i.MX93 platform. Add new registers and new bit
definition.
Chancel Liu (3):
ASoC: fsl_micfil: Add new registers and new bit definition
ASoC: fsl_micfil: Add fsl_micfil_check_version function
ASoC: fsl_micfil: Use SET_SYSTEM_SLEEP_PM_OPS to simplify PM
sound/soc/fsl
MICFIL IP is upgraded on i.MX93 platform. These new registers and new
bit definition are added to complete the register list.
Signed-off-by: Chancel Liu
---
sound/soc/fsl/fsl_micfil.c | 6 ++
sound/soc/fsl/fsl_micfil.h | 28
2 files changed, 34 insertions(+)
di
fsl_micfil_check_version can help to parse the version info in VERID
and PARAM registers. Since the two registers are added only on i.MX93
platform, a member flag called check_version is introduced to soc data
structure which indicates need to check version.
Signed-off-by: Chancel Liu
---
sound/
Use SET_SYSTEM_SLEEP_PM_OPS to simplify suspend and resume function.
fsl_micfil_suspend() and fsl_micfil_resume() can be deleted.
Signed-off-by: Chancel Liu
---
sound/soc/fsl/fsl_micfil.c | 18 ++
1 file changed, 2 insertions(+), 16 deletions(-)
diff --git a/sound/soc/fsl/fsl_mi
On 2023-07-26 at 08:59:53 -0700, Sean Christopherson wrote:
> On Mon, Jul 24, 2023, Xu Yilun wrote:
> > On 2023-07-18 at 16:44:51 -0700, Sean Christopherson wrote:
> > > + if (WARN_ON_ONCE(start == end))
> > > + return -EINVAL;
> >
> > Also, is this check possible to be hit? Maybe remove i
On Tue, Jul 25, 2023 at 04:58:34PM +0100, David Howells wrote:
> Rather than adding a fchmodat2() syscall, should we add a "set_file_attrs()"
> syscall that takes a mask and allows you to set a bunch of stuff all in one
> go? Basically, an interface to notify_change() in the kernel that would allo
>From 9125b1815758ab3b83966aeead6f486c0708ea73 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V"
Date: Thu, 27 Jul 2023 10:02:37 +0530
Subject: [PATCH] powerpc/mm: Fix section mismatch warning
remove_pte_table is only called from remove_pmd_table which is marked
__meminit. These functions are u
Andrew Morton writes:
> On Wed, 26 Jul 2023 10:59:32 +0530 Aneesh Kumar K V
> wrote:
>
>> On 7/26/23 12:59 AM, Andrew Morton wrote:
>> > On Tue, 25 Jul 2023 00:37:46 +0530 "Aneesh Kumar K.V"
>> > wrote:
>> >
>> >> This patch series implements changes required to support DAX vmemmap
>> >> opt
On 7/26/2023 7:54 PM, Sean Christopherson wrote:
> On Wed, Jul 26, 2023, Nikunj A. Dadhania wrote:
>> On 7/24/2023 10:30 PM, Sean Christopherson wrote:
/proc//smaps
7f528be0-7f5c8be0 rw-p 00:01 26629
/memfd:memory-backend-memfd-shared (dele
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