> On 07-Aug-2023, at 10:22 AM, Athira Rajeev
> wrote:
>
> The test "BPF prologue generation" fails as below:
>
> Writing event: p:perf_bpf_probe/func _text+10423200 f_mode=+20(%gpr3):x32
> offset=%gpr4:s64 orig=%gpr5:s32
> In map_prologue, ntevs=1
> mapping[0]=0
> libbpf: prog
On Mon, Aug 7, 2023 at 3:05 PM Linus Walleij wrote:
> > Signed-off-by: Herve Codina
>
> So it is a bridge chip? Please use that terminology since Linux
> DRM often talks about bridges.
Replying to self: no it's not a bridge, it's a WAN thingy.
So perhaps write that this is a WAN interface
On Mon, Aug 07, 2023 at 03:06:42PM +0200, Linus Walleij wrote:
> On Mon, Aug 7, 2023 at 3:05 PM Linus Walleij wrote:
>
> > > Signed-off-by: Herve Codina
> >
> > So it is a bridge chip? Please use that terminology since Linux
> > DRM often talks about bridges.
>
> Replying to self: no it's not
Hi Linus,
On Mon, 7 Aug 2023 15:05:15 +0200
Linus Walleij wrote:
> Hi Herve,
>
> thanks for your patch!
>
> First: is this patch something we could merge separately? I don't see
> any dependency on the other patches.
It depends on pef2256:
in drivers/pinctrl/Kconfig:
--- 8< ---
+config
Hi Linus, Andrew,
On Mon, 7 Aug 2023 15:17:11 +0200
Andrew Lunn wrote:
> On Mon, Aug 07, 2023 at 03:06:42PM +0200, Linus Walleij wrote:
> > On Mon, Aug 7, 2023 at 3:05 PM Linus Walleij
> > wrote:
> >
> > > > Signed-off-by: Herve Codina
> > >
> > > So it is a bridge chip? Please use that
Hi Herve,
thanks for your patch!
First: is this patch something we could merge separately? I don't see
any dependency on the other patches.
On Wed, Jul 26, 2023 at 5:04 PM Herve Codina wrote:
> The Lantiq PEF2256 is a framer and line interface component designed to
> fulfill all required
On Sat 05-08-23 19:54:23, Aneesh Kumar K V wrote:
[...]
> Do you see a need for firmware-managed memory to be hotplugged in with
> different memory block sizes?
In short. Yes. Slightly longer, a fixed size memory block semantic is
just standing in the way and I would even argue it is actively
lude_cpu,
>void (*raise)(cpumask_t *mask));
> bool nmi_cpu_backtrace(struct pt_regs *regs);
>
> @@ -190,7 +190,7 @@ static inline bool trigger_all_cpu_backtrace(void)
> {
> return false;
> }
> -static inline bool trigger_allbutself_cpu_back
On Mon, Aug 07, 2023 at 03:05:15PM +0200, Linus Walleij wrote:
> On Wed, Jul 26, 2023 at 5:04 PM Herve Codina wrote:
> > +#include "linux/bitfield.h"
> Really? I don't think there is such a file there.
> Do you mean and does this even compile?
#include "" means "try the local directory first
On 07.08.23 14:27, Michal Hocko wrote:
On Sat 05-08-23 19:54:23, Aneesh Kumar K V wrote:
[...]
Do you see a need for firmware-managed memory to be hotplugged in with
different memory block sizes?
In short. Yes. Slightly longer, a fixed size memory block semantic is
just standing in the way
On 03.08.23 13:30, Michal Hocko wrote:
On Thu 03-08-23 11:24:08, David Hildenbrand wrote:
[...]
would be readable only when the block is offline and it would reallocate
vmemmap on the change. Makes sense? Are there any risks? Maybe pfn
walkers?
The question is: is it of any real value such
When certain PHB HW failure causes pHyp to recover PHB, it marks the PE
state as temporarily unavailable until recovery is complete. This also
triggers an EEH handler in Linux which needs to notify drivers, and perform
recovery. But before notifying the driver about the PCI error it uses
rtas_generic_errno() function will convert the generic rtas return codes
into errno. Also, #define descriptive names for rtas return codes and use
it instead of numeric values.
Signed-off-by: Mahesh Salgaonkar
---
(no changes since v7)
Change in V7:
- Until v6 there was only one patch with
> On 07-Aug-2023, at 10:20 AM, Athira Rajeev
> wrote:
>
> Testcase "Parsing of all PMU events from sysfs" parse events for
> all PMUs, and not just cpu. In case of powerpc, the PowerVM
> environment supports events from hv_24x7 and hv_gpci PMU which
> is of example format like below:
>
> -
On Fri 04-08-23 09:06:07, Doug Anderson wrote:
> Hi,
>
> On Fri, Aug 4, 2023 at 8:02 AM Michal Hocko wrote:
> >
> > > > It would have been slightly safer to modify
> > > > arch_trigger_cpumask_backtrace
> > > > by switching arguments so that some leftovers are captured easier.
> > >
> > > I'm
Currently, page table information is stored within struct page. As part
of simplifying struct page, create struct ptdesc for page table
information.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm_types.h | 70
1
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/x86/xen/mmu_pv.c | 2 +-
include/linux/mm.h| 14 +++---
2 files changed, 8 insertions(+), 8
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 6 +++---
mm/memory.c| 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize page tables further.
Signed-off-by: Vishal Moola
The page table members are now split out into their own ptdesc struct.
Remove them from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm_types.h | 21 -
1 file changed, 21 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Acked-by: Guo Ren
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/csky/include/asm/pgalloc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/openrisc/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Acked-by: Mike Rapoport (IBM)
Acked-by: Dinh Nguyen
Signed-off-by: Vishal Moola (Oracle)
---
arch/nios2/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Reviewed-by: Geert Uytterhoeven
Acked-by: John Paul Adrian Glaubitz
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
The module_rpmsg_driver() will set "THIS_MODULE" to driver.owner when
register a rpmsg_driver driver, so it is redundant initialization to set
driver.owner in the statement. Remove it for clean code.
Signed-off-by: Li Zetao
---
sound/soc/fsl/imx-audio-rpmsg.c | 1 -
1 file changed, 1
On 04/08/23 10:30 am, Athira Rajeev wrote:
Perf all metricgroups test fails as below when perf_event access
is restricted.
./perf test -v "perf all metricgroups test"
Testing Memory_BW
Error:
Access to performance monitoring and observability operations is limited.
Introduce utility functions setting the foundation for ptdescs. These
will also assist in the splitting out of ptdesc from struct page.
Functions that focus on the descriptor are prefixed with ptdesc_* while
functions that focus on the pagetable are prefixed with pagetable_*.
pagetable_alloc()
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
mm/memory.c| 4 ++--
2 files changed, 7 insertions(+), 7
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/hexagon/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
Sean Christopherson writes:
>
> +static int kvm_gmem_release(struct inode *inode, struct file *file)
> +{
> + struct kvm_gmem *gmem = file->private_data;
> + struct kvm_memory_slot *slot;
> + struct kvm *kvm = gmem->kvm;
> + unsigned long index;
> +
> +
Sean Christopherson writes:
> Add a selftest to verify the basic functionality of guest_memfd():
>
>
Here's one more test:
>From 72dc6836f01bdd613d64d4c6a4f2af8f2b777ba2 Mon Sep 17 00:00:00 2001
From: Ackerley Tng
Date: Tue, 1 Aug 2023 18:02:50 +
Subject: [PATCH] KVM: selftests: Add
Sean Christopherson writes:
> Add a selftest to verify the basic functionality of guest_memfd():
>
> + file descriptor created with the guest_memfd() ioctl does not allow
> read/write/mmap operations
> + file size and block size as returned from fstat are as expected
> + fallocate on the fd
Sean Christopherson writes:
> From: Chao Peng
>
> Expand set_memory_region_test to exercise various positive and negative
> testcases for private memory.
>
> - Non-guest_memfd() file descriptor for private memory
> - guest_memfd() from different VM
> - Overlapping bindings
> - Unaligned
The MM subsystem is trying to shrink struct page. This patchset
introduces a memory descriptor for page table tracking - struct ptdesc.
This patchset introduces ptdesc, splits ptdesc from struct page, and
converts many callers of page table constructor/destructors to use ptdescs.
Ptdesc is a
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
late_alloc() also uses the __get_free_pages() helper function. Convert
this to use pagetable_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Acked-by: Mike Rapoport (IBM)
Acked-by: Catalin Marinas
Signed-off-by: Vishal Moola (Oracle)
---
arch/arm64/include/asm/tlb.h | 14 --
These functions are no longer necessary. Remove them and cleanup
Documentation referencing them.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
Documentation/mm/split_page_table_lock.rst| 12 +--
.../zh_CN/mm/split_page_table_lock.rst| 14
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/um/include/asm/pgalloc.h | 18 +-
1 file changed, 9 insertions(+), 9
lppaca_shared_proc() takes a pointer to the lppaca which is typically
accessed through get_lppaca(). With DEBUG_PREEMPT enabled, this leads
to checking if preemption is enabled, for example:
BUG: using smp_processor_id() in preemptible [] code: grep/10693
caller is
No folio equivalents for page type operations have been defined, so
define them for later folio conversions.
Also changes the Page##uname macros to take in const struct page* since
we only read the memory here.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/powerpc/mm/book3s64/mmu_context.c | 10 ++---
arch/powerpc/mm/book3s64/pgtable.c | 32 +++---
Create pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(),
and pagetable_pmd_dtor() and make the original pgtable
constructor/destructors wrappers.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 56
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Em Mon, Aug 07, 2023 at 08:14:39PM +0530, Disha Goel escreveu:
> On 04/08/23 10:30 am, Athira Rajeev wrote:
> > Perf all metricgroups test fails as below when perf_event access
> > is restricted.
> >
> > ./perf test -v "perf all metricgroups test"
> > Testing Memory_BW
> > Error:
>
On 8/6/23 22:47, Stephen Rothwell wrote:
> Hi all,
>
> Changes since 20230804:
>
on PPC32:
WARNING: unmet direct dependencies detected for SND_SOC_MPC5200_AC97
Depends on [n]: SOUND [=y] && SND [=y] && SND_SOC [=y] && SND_POWERPC_SOC
[=y] && PPC_MPC52xx [=y] && PPC_BESTCOMM [=n]
Converts internal pmd_pgtable_page() callers to use pmd_ptdesc(). This
removes some direct accesses to struct page, working towards splitting
out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 4 ++--
1 file changed,
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable pte constructor/destructors with
ptdesc equivalents.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/sparc/mm/srmmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/mm/srmmu.c
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Acked-by: Mike Rapoport (IBM)
Signed-off-by: Vishal Moola (Oracle)
---
arch/sparc/mm/init_64.c | 17 +
1 file changed, 9
[+cc David since drivers/platform/x86/intel/vsec.c does some similar
things, although it seems to iterate over all Intel DVSEC IDs at once]
In subject:
PCI: Add pci_find_next_dvsec_capability() to find next Designated VSEC
On Mon, Aug 07, 2023 at 11:18:45AM +0800, Xiongfeng Wang wrote:
> Some
On 07.08.23 14:41, David Hildenbrand wrote:
On 07.08.23 14:27, Michal Hocko wrote:
On Sat 05-08-23 19:54:23, Aneesh Kumar K V wrote:
[...]
Do you see a need for firmware-managed memory to be hotplugged in with
different memory block sizes?
In short. Yes. Slightly longer, a fixed size memory
PCI core add pci_find_next_dvsec_capability() to query the next DVSEC.
We can use that core API to simplify the code. Also remove the unused
macros.
Signed-off-by: Xiongfeng Wang
Reviewed-by: Andrew Donnellan
---
arch/powerpc/platforms/powernv/ocxl.c | 20 ++--
Some devices may have several DVSEC (Designated Vendor-Specific Extended
Capability) entries with the same DVSEC ID. Add
pci_find_next_dvsec_capability() to find them all.
Signed-off-by: Xiongfeng Wang
Reviewed-by: Andrew Donnellan
Acked-by: Bjorn Helgaas
---
drivers/pci/pci.c | 39
Some devices may have several DVSEC (Designated Vendor-Specific Extended
Capability) entries with the same DVSEC ID. Introduce
pci_find_next_dvsec_capability() to simplify the code.
ChangeLog:
v1->v2: Add Reviewed-by and Acked-by tags
Modify commit message and document a little for the
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