This series changes the powerpc KVM code so that HV KVM can fetch
prefixed instructions from the guest in those situations where there
is a need to emulate an instruction, which for HV KVM means emulating
loads and stores to emulated MMIO devices. (Prefixed instructions
were introduced with
Now that we can read prefixed instructions from a HV KVM guest and
emulate prefixed load/store instructions to emulated MMIO locations,
we can add HFSCR_PREFIXED into the set of bits that are set in the
HFSCR for a HV KVM guest on POWER10, allowing the guest to use
prefixed instructions.
PR KVM
This changes kvmppc_get_last_inst() so that the instruction it fetches
is returned in a ppc_inst_t variable rather than a u32. This will
allow us to return a 64-bit prefixed instruction on those 64-bit
machines that implement Power ISA v3.1 or later, such as POWER10.
On 32-bit platforms,
In order to handle emulation of prefixed instructions in the guest,
this first makes vcpu->arch.last_inst be an unsigned long, i.e. 64
bits on 64-bit platforms. For prefixed instructions, the upper 32
bits are used for the prefix and the lower 32 bits for the suffix, and
both halves are
On 06/03/2023 20:15, Sean Anderson wrote:
> This is a generic binding for simple MMIO GPIO controllers. Although we
> have a single driver for these controllers, they were previously spread
> over several files. Consolidate them. The register descriptions are
> adapted from the comments in the
Benjamin Gray writes:
> Add new cases to the relevant tests that use explicitly synchronized
> threads to test the behaviour across context switches with less
> randomness. By locking the participants to the same CPU we guarantee a
> context switch occurs each time they make progress, which is a
On Tue, Mar 07, 2023 at 12:30:22PM +0200, Claudiu Beznea wrote:
> Do not include pm_runtime.h header in files where runtime PM support is
> not implemented.
>
> Signed-off-by: Claudiu Beznea
> ---
> sound/soc/codecs/cs35l45.h| 1 -
> diff --git
This simply wraps around the arch function and prepends it with a
tracepoint, similar to send_call_function_single_ipi().
Signed-off-by: Valentin Schneider
Reviewed-by: Steven Rostedt (Google)
---
kernel/smp.c | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git
send_call_function_single_ipi() is the thing that sends IPIs at the bottom
of smp_call_function*() via either generic_exec_single() or
smp_call_function_many_cond(). Give it an IPI-related tracepoint.
Note that this ends up tracing any IPI sent via __smp_call_single_queue(),
which covers
To be able to trace invocations of smp_send_reschedule(), rename the
arch-specific definitions of it to arch_smp_send_reschedule() and wrap it
into an smp_send_reschedule() that contains a tracepoint.
Changes to include the declaration of the tracepoint were driven by the
following coccinelle
The assigned timeslot masks are 64bit values.
In case of 64 timeslots the code uses (1 << 64) which is undefined on a
64bit value. On the PowerPC architecture, this lead to an incorrect
result as (1 << 64) produces the same result as (1 << 0).
Fix the masks values taking care of the 64 timeslots
IPIs sent to remote CPUs via irq_work_queue_on() are now covered by
trace_ipi_send_cpumask(), add another instance of the tracepoint to cover
self-IPIs.
Signed-off-by: Valentin Schneider
Reviewed-by: Steven Rostedt (Google)
---
kernel/irq_work.c | 14 +-
1 file changed, 13
Hi Krzysztof,
On 3/7/23 03:42, Krzysztof Kozlowski wrote:
> On 06/03/2023 20:15, Sean Anderson wrote:
>> This is a generic binding for simple MMIO GPIO controllers. Although we
>> have a single driver for these controllers, they were previously spread
>> over several files. Consolidate them. The
A previous series added the PowerQUICC audio support using the QMC.
The v6 version of this previous series was applied but some feedbacks
lead to a v7 version.
The v6 can be found here:
https://lore.kernel.org/linux-kernel/20230217145645.1768659-1-herve.cod...@bootlin.com/
and the v7, here:
Remove the unneeded and unused #fsl,serial-cells property.
Signed-off-by: Herve Codina
---
.../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 10 --
1 file changed, 10 deletions(-)
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
Remove the unneeded and unused #fsl,chan-cells property.
Signed-off-by: Herve Codina
---
.../bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml | 10 --
1 file changed, 10 deletions(-)
diff --git
a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml
From: Athira Rajeev
[ Upstream commit 34266f904abd45731bdade2e92d0536c092ee9bc ]
Perf BPF filter test fails in environment where "kernel-debuginfo"
is not installed.
Test failure logs:
<<>>
42: BPF filter:
42.1: Basic BPF filtering : Ok
From: Ian Rogers
[ Upstream commit d2e3dc829e389d686194d06f0a64adda4158faae ]
A character encoding issue added a "3D" character that breaks the
metrics test.
Fixes: 40769665b63d8c84 ("perf jevents: Parse metrics during conversion")
Reviewed-by: Kajol Jain
Signed-off-by: Ian Rogers
Cc: Adrian
From: Kajol Jain
[ Upstream commit f9fa0778ee7349a9aa3d2ea10e9f2ab843a0b44e ]
Testcase stat_all_metrics.sh fails in powerpc:
98: perf all metrics test : FAILED!
Logs with verbose:
[command]# ./perf test 98 -vv
98: perf all metrics test :
---
From: Kajol Jain
[ Upstream commit f9fa0778ee7349a9aa3d2ea10e9f2ab843a0b44e ]
Testcase stat_all_metrics.sh fails in powerpc:
98: perf all metrics test : FAILED!
Logs with verbose:
[command]# ./perf test 98 -vv
98: perf all metrics test :
---
This reverts commit d5e2d038dbece821f1af57acbeded3aa9a1832c1.
We have a report of this chip being used on a
SURECOM EP-320X-S 100/10M Ethernet PCI Adapter
which could still have been purchased in some parts
of the world 3 years ago.
Cc: sta...@vger.kernel.org
Link:
From: Athira Rajeev
[ Upstream commit 34266f904abd45731bdade2e92d0536c092ee9bc ]
Perf BPF filter test fails in environment where "kernel-debuginfo"
is not installed.
Test failure logs:
<<>>
42: BPF filter:
42.1: Basic BPF filtering : Ok
Haren Myneni writes:
> The hypervisor supports user-mode NX from Power10. pseries_vas_dlpar_cpu()
> is called from lparcfg_write() to update VAS windows for DLPAR CPU event
> and the kernel gets -ENOTSUPP for HCALLs if the user-mode NX is not
> supported.
The commit text would be improved by
Background
==
Detecting IPI *reception* is relatively easy, e.g. using
trace_irq_handler_{entry,exit} or even just function-trace
flush_smp_call_function_queue() for SMP calls.
Figuring out their *origin*, is trickier as there is no generic tracepoint tied
to e.g. smp_call_function():
trace_ipi_raise() is unsuitable for generically tracing IPI sources due to
its "reason" argument being an uninformative string (on arm64 all you get
is "Function call interrupts" for SMP calls).
Add a variant of it that exports a target cpumask, a callsite and a callback.
Signed-off-by: Valentin
Context
===
The newly-introduced ipi_send_cpumask tracepoint has a "callback" parameter
which so far has only been fed with NULL.
While CSD_TYPE_SYNC/ASYNC and CSD_TYPE_IRQ_WORK share a similar backing
struct layout (meaning their callback func can be accessed without caring
about the actual
Accessing the call_single_queue hasn't involved a spinlock since 2014:
6897fc22ea01 ("kernel: use lockless list for smp_call_function_single")
The llist operations (namely cmpxchg() and xchg()) provide similar ordering
guarantees, update the comment to lessen confusion.
Signed-off-by:
On the max config P10 machine (1920 threads and 64TB) this test fails
with a timeout:
Sending signals to all threads 10 times...!! killing vmx_signal
!! child died by signal 15
failure: vmx_signal
The default timeout is 120sec so increase this 3x to 360sec. With this
change the test
On Mon, 06 Mar 2023 02:04:54 PST (-0800), alexgh...@rivosinc.com wrote:
As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.
Signed-off-by: Alexandre Ghiti
---
arch/riscv/include/asm/setup.h | 7 +++
- Original Message -
> From: "Alex Williamson"
> To: "Timothy Pearson"
> Cc: "kvm" , "linuxppc-dev"
>
> Sent: Monday, March 6, 2023 6:59:41 PM
> Subject: Re: [PATCH v2 0/4] Reenable VFIO support on POWER systems
> On Mon, 6 Mar 2023 18:35:22 -0600 (CST)
> Timothy Pearson wrote:
>
If tce_iommu_take_ownership is unable to take ownership of
a specific IOMMU table, the unwinder in the error handler
could attempt to release ownership of an invalid table.
Check validity of each table in the unwinder before attempting
to release ownership. Thanks to Alex Williamson for the
On 3/6/23 14:15, Sean Anderson wrote:
> This adds a binding for the SerDes module found on QorIQ processors.
> Each phy is a subnode of the top-level device, possibly supporting
> multiple lanes and protocols. This "thick" #phy-cells is used due to
> allow for better organization of parameters.
Hello,
> -Original Message-
> From: Jonas Gorski
> Sent: Tuesday, March 7, 2023 1:31 AM
> To: Mahapatra, Amit Kumar
> Cc: broo...@kernel.org; miquel.ray...@bootlin.com; rich...@nod.at;
> vigne...@ti.com; ji...@kernel.org; tudor.amba...@microchip.com;
> praty...@kernel.org; Mehta, Sanju
Do not include pm_runtime.h header in files where runtime PM support is
not implemented.
Signed-off-by: Claudiu Beznea
---
sound/hda/hdac_regmap.c | 1 -
sound/pci/hda/hda_bind.c | 1 -
sound/soc/amd/acp/acp-pci.c
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