Hello Pingfan,
With this patch series applied, the kdump kernel fails to boot on
powerpc with nr_cpus=1.
Console logs:
---
[root]# echo c > /proc/sysrq-trigger
[ 74.783235] sysrq: Trigger a crash
[ 74.783244] Kernel panic - not syncing: sysrq triggered crash
[ 74.783252]
On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman wrote:
> > I don't know why powerpc's PTE_INDEX_SIZE is variable.
>
> To allow a single vmlinux to boot using either the Hashed Page Table
> MMU, or Radix Tree MMU, which have different page table geometry.
>
> That's a pretty crucial feature
polated VPD buff\n");
}
---
base-commit: cbf3a2cb156a2c911d8f38d8247814b4c07f49a2
change-id: 20231009-strncpy-drivers-net-ethernet-ibm-ibmvnic-c-e0900ba19e56
Best regards,
--
Justin Stitt
On Wed, Oct 04, 2023 at 02:52:21PM -0400, Jeff Layton wrote:
> v2:
> - bugfix in mtime handling
> - incorporate _sec and _nsec accessor functions (Chuck Lever)
> - move i_generation to plug hole after changing timestamps (Amir Goldstein)
>
> While working on the multigrain timestamp changes,
Replace if condition of napi_schedule_prep/__napi_schedule and use bool
from napi_schedule directly where possible.
Signed-off-by: Christian Marangi
---
Changes v3:
- Drop toshiba change and rework in separate patch
---
drivers/net/ethernet/atheros/atlx/atl1.c | 4 +---
Rework network interface logic. Before this change, the code flow was:
1. Disable interrupt
2. Try to schedule a NAPI
3. Check if it was possible (NAPI is not already scheduled)
4. emit BUG() if we receive interrupt while a NAPI is scheduled
If some application busy poll or set gro_flush_timeout
Now that napi_schedule return a bool, we can drop napi_reschedule that
does the same exact function. The function comes from a very old commit
bfe13f54f502 ("ibm_emac: Convert to use napi_struct independent of struct
net_device") and the purpose is actually deprecated in favour of
different logic.
Change napi_schedule to return a bool on NAPI successful schedule.
This might be useful for some driver to do additional steps after a
NAPI has been scheduled.
Suggested-by: Eric Dumazet
Signed-off-by: Christian Marangi
Reviewed-by: Eric Dumazet
---
Changes v2:
- Add Suggested-by tag
- Add
Replace drivers that still use napi_schedule_prep/__napi_schedule
with napi_schedule helper as it does the same exact check and call.
Signed-off-by: Christian Marangi
Reviewed-by: Eric Dumazet
---
Changes v3:
- Add Reviewed-by tag
Changes v2:
- Add missing semicolon
---
From: Arnd Bergmann
After the vga console no longer relies on global screen_info, there are
only two remaining use cases:
- on the x86 architecture, it is used for multiple boot methods
(bzImage, EFI, Xen, kexec) to commucate the initial VGA or framebuffer
settings to a number of device
From: Arnd Bergmann
The two hyperv framebuffer drivers (hyperv_fb or hyperv_drm_drv) access the
global screen_info in order to take over from the sysfb framebuffer, which
in turn could be handled by simplefb, simpledrm or efifb. Similarly, the
vmbus_drv code marks the original EFI framebuffer as
From: Arnd Bergmann
I noticed that commit 0db5b61e0dc07 ("fbdev/vga16fb: Create
EGA/VGA devices in sysfb code") broke vga16fb on non-x86 platforms,
because the sysfb code never creates a vga-framebuffer device when
screen_info.orig_video_isVGA is set to '1' instead of VIDEO_TYPE_VGAC.
However,
From: Arnd Bergmann
To prepare for completely separating the VGA console screen_info from
the one used in EFI/sysfb, rename the vgacon instances and make them
local as much as possible.
ia64 and arm both have confurations with vgacon and efi, but the contents
never overlaps because ia64 has no
From: Arnd Bergmann
The vga console driver is fairly self-contained, and only used by
architectures that explicitly initialize the screen_info settings.
Chance every instance that picks the vga console by setting conswitchp
to call a function instead, and pass a reference to the screen_info
From: Arnd Bergmann
A number of architectures either kept the screen_info definition for
historical purposes as it used to be required by the generic VT code, or
they copied it from another architecture in order to build the VGA console
driver in an allmodconfig build. The mips definition is
From: Arnd Bergmann
The dummycon default console size used to be determined by architecture,
but now this is a Kconfig setting on everything except ARM. Tracing this
back in the historic git trees, this was used to match the size of VGA
console or VGA framebuffer on early machines, but nowadays
From: Arnd Bergmann
On non-x86 architectures, the screen_info variable is generally only
used for the VGA console where supported, and in some cases the EFI
framebuffer or vga16fb.
Now that we have a definite list of which architectures actually use it
for what, use consistent #ifdef checks so
From: Arnd Bergmann
The list of dependencies here is phrased as an opt-out, but this is missing
a lot of architectures that don't actually support VGA consoles, and some
of the entries are stale:
- powerpc used to support VGA consoles in the old arch/ppc codebase, but
the merged
From: Arnd Bergmann
v3 changelog
No real changes, just rebased for context changes, and picked up the Acks.
This now conflicts with the ia64 removal and introduces one new dependency
on IA64, but that is harmless and trivial to deal with later.
Link:
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.
Signed-off-by: Rob Herring
---
drivers/usb/chipidea/ci_hdrc_usb2.c | 11 +--
drivers/usb/dwc2/params.c |
Hi Haren,
Haren Myneni writes:
> The hypervisor returns migration failure if all VAS windows are not
> closed. During pre-migration stage, vas_migration_handler() sets
> migration_in_progress flag and closes all windows from the list.
> The allocate VAS window routine checks the migration flag,
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.
Signed-off-by: Rob Herring
---
drivers/net/ethernet/altera/altera_tse.h | 2 +-
On Thu, Sep 14, 2023 at 7:25 AM Sean Christopherson wrote:
>
> Convert KVM_ARCH_WANT_MMU_NOTIFIER into a Kconfig and select it where
> appropriate to effectively maintain existing behavior. Using a proper
> Kconfig will simplify building more functionality on top of KVM's
> mmu_notifier
On Sat, Oct 07, 2023 at 11:13:49AM +, Chancel Liu wrote:
> Instead of "fsl,lpa-widgets", I would like to add a common property
> "ignore-suspend-widgets" in sound-card-common.yaml file. So not only rpmsg
> sound cards but also other sound cards which have such feature can use this
> property
Le 09/10/2023 à 17:12, Eddie James a écrit :
>
> On 10/9/23 08:14, Michael Ellerman wrote:
>> Eddie James writes:
>>> Hi,
>>>
>>> I'm attempting to run linux 6.1 on my FSP2, but my kernel crashes
>>> attempting to get into userspace. The init script works, but the first
>>> binary (mount) I
https://bugzilla.kernel.org/show_bug.cgi?id=216156
--- Comment #14 from Erhard F. (erhar...@mailbox.org) ---
Thanks for having a look at the issue!
Applied your patch on top of v6.5.6 but it didn't work out. Now I get:
[...]
drmem: No dynamic reconfiguration memory found
ata5.00: ATAPI:
On 10/9/23 08:14, Michael Ellerman wrote:
Eddie James writes:
Hi,
I'm attempting to run linux 6.1 on my FSP2, but my kernel crashes
attempting to get into userspace. The init script works, but the first
binary (mount) I run results in oops. Can anyone help me to debug this
further or
On 28/09/2023 11:00, Shengjiu Wang wrote:
> Audio memory to memory virtual driver use video memory to memory
> virtual driver vim2m.c as example. The main difference is
> device type is VFL_TYPE_AUDIO and device cap type is V4L2_CAP_AUDIO_M2M.
>
> The device_run function is a dummy function,
Hi Shengjiu,
On 28/09/2023 11:00, Shengjiu Wang wrote:
> The audio sample format definition is from alsa,
> the header file is include/uapi/sound/asound.h, but
> don't include this header file directly, because in
> user space, there is another copy in alsa-lib.
> There will be conflict in
On 28/09/2023 11:00, Shengjiu Wang wrote:
> Audio rate controls is used for user to configure
is -> are
for -> by the
> the audio sample rate to driver.
>
> Add V4L2_CID_ASRC_SOURCE_RATE and V4L2_CID_ASRC_DEST_RATE
> new ID for ASRC rate control.
ID -> IDs
>
> Signed-off-by: Shengjiu Wang
>
Hi Jakub,
On Fri, 6 Oct 2023 14:47:02 -0700
Jakub Kicinski wrote:
> On Thu, 28 Sep 2023 09:06:28 +0200 Herve Codina wrote:
> > +static int qmc_hdlc_close(struct net_device *netdev)
> > +{
> > + struct qmc_hdlc *qmc_hdlc = netdev_to_qmc_hdlc(netdev);
> > + struct qmc_hdlc_desc *desc;
> > +
On 28/09/2023 11:00, Shengjiu Wang wrote:
> Audio signal processing has the requirement for memory to
> memory similar as Video.
>
> This patch is to add this support in v4l2 framework, defined
> new buffer type V4L2_BUF_TYPE_AUDIO_CAPTURE and
> V4L2_BUF_TYPE_AUDIO_OUTPUT, defined new format
/powerpc-make-fadump-resilient-with-memory-add-remove-events/20231009-122519
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:
https://lore.kernel.org/r/20231009041953.36139-2-sourabhjain%40linux.ibm.com
patch subject: [PATCH v3 1/3] powerpc: make fadump
Commit c28c15b6d28a ("powerpc/code-patching: Use temporary mm for
Radix MMU") added a hwsync for when __patch_instruction() fails,
we results in a quite odd unbalanced logic.
Instead of calling mb() when __patch_instruction() returns an error,
call mb() in the __patch_instruction()'s error path
Eddie James writes:
> Hi,
>
> I'm attempting to run linux 6.1 on my FSP2, but my kernel crashes
> attempting to get into userspace. The init script works, but the first
> binary (mount) I run results in oops. Can anyone help me to debug this
> further or suggest anything?
Hi Eddie,
It looks
paca_ptrs should be large enough to hold the boot_cpuid, hence, its
lower boundary is set to the bigger one between boot_cpuid+1 and
nr_cpus.
On the other hand, some kernel component: -1. the timer assumes cpu0
online since the timer_list->flags subfield 'TIMER_CPUMASK' is zero if
not initialized
The threads in a core have equal status, so the code introduces a for
loop pattern to execute the same task on each thread:
for (i = first_thread; i < first_thread + threads_per_core; i++)
Now that some threads may not be in the cpu_possible_mask, the iteration
skips those threads by checking
In order to identify the boot cpu, its intserv[] should be recorded and
checked in smp_setup_cpu_maps().
smp_setup_cpu_maps() is shared between PPC64 and PPC32. Since PPC64 has
already used boot_cpu_hwid to carry that information, enabling this
variable on PPC32 so later it can also be used to
If the boot_cpuid is smaller than nr_cpus, it requires extra effort to
ensure the boot_cpu is in cpu_present_mask. This can be achieved by
reserving the last quota for the boot cpu.
Note: the restriction on nr_cpus will be lifted with more effort in the
successive patches
Signed-off-by: Pingfan
*** Idea ***
For kexec -p, the boot cpu can be not the cpu0, this causes the problem
of allocating memory for paca_ptrs[]. However, in theory, there is no
requirement to assign cpu's logical id as its present sequence in the
device tree. But there is something like cpu_first_thread_sibling(),
Since my last v4 [1], the code has undergone great changes. The paca[]
array has been reorganized and indexed by paca_ptrs[], which
dramatically decreases the memory consumption even if there are many
unpresent cpus in the middle.
However, reordering the logical cpu numbers can further decrease
On Sun, Oct 8, 2023 at 8:27 PM Christian Marangi wrote:
>
> On Sun, Oct 08, 2023 at 09:08:41AM +0200, Eric Dumazet wrote:
> > On Fri, Oct 6, 2023 at 8:49 PM Christian Marangi
> > wrote:
> > >
> > > On Thu, Oct 05, 2023 at 06:16:26PM +0200, Eric Dumazet wrote:
> > > > On Tue, Oct 3, 2023 at 8:36
On 10/8/23 21:01, Uwe Kleine-König wrote:
> Hello,
>
> this series converts all platform drivers below drivers/mtd to use the
> .remove_new() callback. Compared to the traditional .remove() callback
> .remove_new() returns no value. This is a good thing because the driver
> core doesn't (and
> From: Jason Gunthorpe
> Sent: Thursday, September 28, 2023 7:48 AM
>
> Trivially migrate to the ops->blocked_domain for the existing global
> static.
>
> Reviewed-by: Lu Baolu
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Kevin Tian
> From: Jason Gunthorpe
> Sent: Thursday, September 28, 2023 7:48 AM
>
> The global static should pre-define the type and the NOP free function can
> be now left as NULL.
>
> Reviewed-by: Lu Baolu
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Kevin Tian
> From: Jason Gunthorpe
> Sent: Thursday, September 28, 2023 7:48 AM
>
> Following the pattern of identity domains, just assign the BLOCKED domain
> global statics to a value in ops. Update the core code to use the global
> static directly.
>
> Update powerpc to use the new scheme and remove
> From: Jason Gunthorpe
> Sent: Thursday, September 28, 2023 7:48 AM
>
> Move the global static blocked domain to the ops and convert the
> unmanaged
> domain to domain_alloc_paging.
>
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Kevin Tian
On Sun, Oct 08, 2023 at 09:28:00AM +1100, Michael Ellerman wrote:
> Joel Granados writes:
> > On Mon, Oct 02, 2023 at 12:27:18PM +, Christophe Leroy wrote:
> >> Le 02/10/2023 à 10:55, Joel Granados via B4 Relay a écrit :
> >> > From: Joel Granados
> >> >
> > <--- snip --->
> >> > -
suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url:
https://github.com/intel-lab-lkp/linux/commits/Sourabh-Jain/powerpc-make-fadump-resilient-with-memory-add-remove-events/20231009-122519
base: https://git.kernel.org/pub/scm/linux/kernel
The DEXCR Speculative Branch Hint Enable (SBHE) aspect controls whether
the hints provided by BO field of Branch instructions are obeyed during
speculative execution.
SBHE behaviour per ISA 3.1B:
0: The hints provided by BO field of Branch instructions may be
ignored during
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