On 9/6/23 01:56, Sean Christopherson wrote:
> On Fri, Sep 01, 2023, Vlastimil Babka wrote:
>> As Kirill pointed out, mapping can be removed under us due to
>> truncation. Test it under folio lock as already done for the async
>> compaction / dirty folio case. To prevent locking every folio with
>>
On Tue, Aug 22, 2023 at 04:33:39PM -0500, Nathan Lynch via B4 Relay wrote:
> From: Nathan Lynch
>
> PowerVM LPARs may retrieve Vital Product Data (VPD) for system
> components using the ibm,get-vpd RTAS function.
>
> We can expose this to user space with a /dev/papr-vpd character
> device, where
Hello,
On Tue, Aug 22, 2023 at 04:33:38PM -0500, Nathan Lynch via B4 Relay wrote:
> This is a proposal for adding chardev-based access to a select subset
> of RTAS functions on the pseries platform.
>
> The problem: important platform features are enabled on Linux VMs
> through the powerpc-specif
Additional patch suggestion to go with the rtas devices:
---
With most important rtas functions available through different
interfaces the sys_rtas interface can be disabled completely.
Do not remove it for now to make it possib
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
What?
These commits remove the sentinel element (last empty element) from the
sysctl arrays of all the files under the "arch/" directory that use a
sysctl array for registration. The merging of the preparation patches
(in https://lore.kernel.org/all/zo5yx5jfoggi%2f...@bombadil
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
From: Joel Granados
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https:/
Em Tue, Sep 05, 2023 at 05:10:37PM +0530, Kajol Jain escreveu:
> Update JSON/Events list with data-source events for power10 platform.
Next time could you please provide some pointer to the document from
where these metrics came if it is available online?
- Arnaldo
> Signed-off-by: Kajol Jain
Em Tue, Sep 05, 2023 at 05:10:38PM +0530, Kajol Jain escreveu:
> Update JSON/Events list with additional data-source events
> for power10 platform.
I changed the cset title to:
"perf vendor events power10: Add extra data-source events"
As it was exactly the same as the first, so when someone doe
Em Tue, Sep 05, 2023 at 05:10:37PM +0530, Kajol Jain escreveu:
> Update JSON/Events list with data-source events for power10 platform.
Thanks, applied the series.
- Arnaldo
> Signed-off-by: Kajol Jain
> ---
> .../arch/powerpc/power10/datasource.json | 1282 +
> .../arch/
On 9/6/23 03:03, Joel Granados via B4 Relay wrote:
> This commit comes at the tail end of a greater effort to remove the
> empty elements at the end of the ctl_table arrays (sentinels) which
> will reduce the overall build time size of the kernel and run time
> memory bloat by ~64 bytes per sentine
Remove 'file' parameter from struct machdep_calls.phys_mem_access_prot
and its implementation in pci_phys_mem_access_prot(). The file is not
used on PowerPC. By removing it, a later patch can simplify fbdev's
mmap code, which uses phys_mem_access_prot() on PowerPC.
Signed-off-by: Thomas Zimmermann
Call __phys_mem_access_prot() from the fbdev mmap helper
fb_pgprot_device(). Allows to avoid the file argument of
NULL.
Signed-off-by: Thomas Zimmermann
---
arch/powerpc/include/asm/fb.h | 7 +--
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/powerpc/include/asm/fb.h b/arc
Clean up and rename fb_pgprotect() to work without struct file. Then
refactor the implemnetation for PowerPC. This change has been discussed
at [1] in the context of refactoring fbdev's mmap code.
The first two patches update fbdev and replace fbdev's fb_pgprotect()
with fb_pgprot_device() on all
Only PowerPC's fb_pgprotect() needs the file argument, although
the implementation does not use it. Pass NULL to the internal
helper in preparation of further updates. A later patch will remove
the file parameter from fb_pgprotect().
While at it, replace the shift operation with PHYS_PFN().
Sugge
Rename the fbdev mmap helper fb_pgprotect() to fb_pgprot_device().
The helper sets VMA page-access flags for framebuffers in device I/O
memory. The new name follows pgprot_device(), which does the same for
arbitrary devices.
Also clean up the helper's parameters and return value. Instead of
the VM
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann
---
arch/powerpc/include/asm/machdep.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/machdep.h
b/arch/powerpc/include/asm/machdep.h
index 4f6e7d7ee388..933465ed4c4
The kernel boot parameter 'nr_cpus=' allows one to specify number of
possible cpus in the system. In the normal scenario the first cpu (cpu0)
that shows up is the boot cpu and hence it gets covered under nr_cpus
limit.
But this assumption is broken in kdump scenario where kdump kernel after a
cras
Michal Suchanek writes:
> Additional patch suggestion to go with the rtas devices:
>
> ---
>
> With most important rtas functions available through different
> interfaces the sys_rtas interface can be disabled completely.
>
> Do
On Wed, Sep 6, 2023, at 10:35, Thomas Zimmermann wrote:
> Rename the fbdev mmap helper fb_pgprotect() to fb_pgprot_device().
> The helper sets VMA page-access flags for framebuffers in device I/O
> memory. The new name follows pgprot_device(), which does the same for
> arbitrary devices.
>
> Also c
* Dave Hansen wrote:
> On 9/6/23 03:03, Joel Granados via B4 Relay wrote:
> > This commit comes at the tail end of a greater effort to remove the
> > empty elements at the end of the ctl_table arrays (sentinels) which
> > will reduce the overall build time size of the kernel and run time
> > me
On Wed, Sep 06, 2023, David Stevens wrote:
> On Wed, Sep 6, 2023 at 9:45 AM Sean Christopherson wrote:
> >
> > On Tue, Sep 05, 2023, David Stevens wrote:
> > > For property 2, FOLL_GET is also important. If guarded_by_mmu_notifier
> > > is set, then we're all good here. If guarded_by_mmu_notifier
On Fri, Jul 21, 2023 at 7:13 PM Sean Christopherson wrote:
> On Fri, Jul 21, 2023, Paolo Bonzini wrote:
> > On 7/19/23 01:44, Sean Christopherson wrote:
> > > @@ -413,6 +454,9 @@ int kvm_gmem_create(struct kvm *kvm, struct
> > > kvm_create_guest_memfd *args)
> > > u64 flags = args->flags;
> >
On 09/06/23 at 12:06am, Hari Bathini wrote:
> Include asm/fadump.h in asm/kexec.h to make it visible while exporting
> vmcore. Also, update is_fadump_active() to return boolean instead of
> integer for better readability. The change will be used in the next
> patch to ensure vmcore is exported when
Hi Arnd
Am 06.09.23 um 21:53 schrieb Arnd Bergmann:
On Wed, Sep 6, 2023, at 10:35, Thomas Zimmermann wrote:
Rename the fbdev mmap helper fb_pgprotect() to fb_pgprot_device().
The helper sets VMA page-access flags for framebuffers in device I/O
memory. The new name follows pgprot_device(), which
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