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1,233,488 commits

Author SHA1 Message Date
Thomas Gleixner
72b11aa7f8 riscv: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.916055844@linutronix.de
2023-05-15 13:44:59 +02:00
Thomas Gleixner
51e0efe1f2 parisc: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.859920443@linutronix.de
2023-05-15 13:44:59 +02:00
Thomas Gleixner
c8d2bcc467 MIPS: SMP_CPS: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. This unfortunately requires to add dead reporting to the non CPS
platforms as CPS is the only user, but it allows an overall consolidation
of this functionality.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.803238859@linutronix.de
2023-05-15 13:44:58 +02:00
Thomas Gleixner
7202e97964 csky/smp: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.747254502@linutronix.de
2023-05-15 13:44:58 +02:00
Thomas Gleixner
b3091f172f arm64: smp: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.690926018@linutronix.de
2023-05-15 13:44:57 +02:00
Thomas Gleixner
5490e769cd ARM: smp: Switch to hotplug core state synchronization
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.635326070@linutronix.de
2023-05-15 13:44:57 +02:00
Thomas Gleixner
5356297d12 cpu/hotplug: Remove cpu_report_state() and related unused cruft
No more users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.582584351@linutronix.de
2023-05-15 13:44:56 +02:00
Thomas Gleixner
2711b8e2b7 x86/smpboot: Switch to hotplug core state synchronization
The new AP state tracking and synchronization mechanism in the CPU hotplug
core code allows to remove quite some x86 specific code:

  1) The AP alive synchronization based on cpumasks

  2) The decision whether an AP can be brought up again

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.529657366@linutronix.de
2023-05-15 13:44:56 +02:00
Thomas Gleixner
6f0621238b cpu/hotplug: Add CPU state tracking and synchronization
The CPU state tracking and synchronization mechanism in smpboot.c is
completely independent of the hotplug code and all logic around it is
implemented in architecture specific code.

Except for the state reporting of the AP there is absolutely nothing
architecture specific and the sychronization and decision functions can be
moved into the generic hotplug core code.

Provide an integrated variant and add the core synchronization and decision
points. This comes in two flavours:

  1) DEAD state synchronization

     Updated by the architecture code once the AP reaches the point where
     it is ready to be torn down by the control CPU, e.g. by removing power
     or clocks or tear down via the hypervisor.

     The control CPU waits for this state to be reached with a timeout. If
     the state is reached an architecture specific cleanup function is
     invoked.

  2) Full state synchronization

     This extends #1 with AP alive synchronization. This is new
     functionality, which allows to replace architecture specific wait
     mechanims, e.g. cpumasks, completely.

     It also prevents that an AP which is in a limbo state can be brought
     up again. This can happen when an AP failed to report dead state
     during a previous off-line operation.

The dead synchronization is what most architectures use. Only x86 makes a
bringup decision based on that state at the moment.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.476305035@linutronix.de
2023-05-15 13:44:55 +02:00
Thomas Gleixner
ab24eb9abb x86/xen/hvm: Get rid of DEAD_FROZEN handling
No point in this conditional voodoo. Un-initializing the lock mechanism is
safe to be called unconditionally even if it was already invoked when the
CPU died.

Remove the invocation of xen_smp_intr_free() as that has been already
cleaned up in xen_cpu_dead_hvm().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.423407127@linutronix.de
2023-05-15 13:44:55 +02:00
Thomas Gleixner
2de7fd26d9 x86/xen/smp_pv: Remove wait for CPU online
Now that the core code drops sparse_irq_lock after the idle thread
synchronized, it's pointless to wait for the AP to mark itself online.

Whether the control CPU runs in a wait loop or sleeps in the core code
waiting for the online operation to complete makes no difference.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.369512093@linutronix.de
2023-05-15 13:44:54 +02:00
Thomas Gleixner
e464640cf7 x86/smpboot: Remove wait for cpu_online()
Now that the core code drops sparse_irq_lock after the idle thread
synchronized, it's pointless to wait for the AP to mark itself online.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.316417181@linutronix.de
2023-05-15 13:44:54 +02:00
Thomas Gleixner
22b612e2d5 cpu/hotplug: Rework sparse_irq locking in bringup_cpu()
There is no harm to hold sparse_irq lock until the upcoming CPU completes
in cpuhp_online_idle(). This allows to remove cpu_online() synchronization
from architecture code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.263722880@linutronix.de
2023-05-15 13:44:54 +02:00
Thomas Gleixner
c8b7fb09d1 x86/smpboot: Remove cpu_callin_mask
Now that TSC synchronization is SMP function call based there is no reason
to wait for the AP to be set in smp_callin_mask. The control CPU waits for
the AP to set itself in the online mask anyway.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.206394064@linutronix.de
2023-05-15 13:44:53 +02:00
Thomas Gleixner
9d349d47f0 x86/smpboot: Make TSC synchronization function call based
Spin-waiting on the control CPU until the AP reaches the TSC
synchronization is just a waste especially in the case that there is no
synchronization required.

As the synchronization has to run with interrupts disabled the control CPU
part can just be done from a SMP function call. The upcoming AP issues that
call async only in the case that synchronization is required.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.148255496@linutronix.de
2023-05-15 13:44:53 +02:00
Thomas Gleixner
d4f28f07c2 x86/smpboot: Move synchronization masks to SMP boot code
The usage is in smpboot.c and not in the CPU initialization code.

The XEN_PV usage of cpu_callout_mask is obsolete as cpu_init() not longer
waits and cacheinfo has its own CPU mask now, so cpu_callout_mask can be
made static too.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.091511483@linutronix.de
2023-05-15 13:44:52 +02:00
Thomas Gleixner
a32226fa3b x86/cpu/cacheinfo: Remove cpu_callout_mask dependency
cpu_callout_mask is used for the stop machine based MTRR/PAT init.

In preparation of moving the BP/AP synchronization to the core hotplug
code, use a private CPU mask for cacheinfo and manage it in the
starting/dying hotplug state.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205256.035041005@linutronix.de
2023-05-15 13:44:52 +02:00
Thomas Gleixner
e94cd1503b x86/smpboot: Get rid of cpu_init_secondary()
The synchronization of the AP with the control CPU is a SMP boot problem
and has nothing to do with cpu_init().

Open code cpu_init_secondary() in start_secondary() and move
wait_for_master_cpu() into the SMP boot code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.981999763@linutronix.de
2023-05-15 13:44:51 +02:00
David Woodhouse
2b3be65d2e x86/smpboot: Split up native_cpu_up() into separate phases and document them
There are four logical parts to what native_cpu_up() does on the BSP (or
on the controlling CPU for a later hotplug):

 1) Wake the AP by sending the INIT/SIPI/SIPI sequence.

 2) Wait for the AP to make it as far as wait_for_master_cpu() which
    sets that CPU's bit in cpu_initialized_mask, then sets the bit in
    cpu_callout_mask to let the AP proceed through cpu_init().

 3) Wait for the AP to finish cpu_init() and get as far as the
    smp_callin() call, which sets that CPU's bit in cpu_callin_mask.

 4) Perform the TSC synchronization and wait for the AP to actually
    mark itself online in cpu_online_mask.

In preparation to allow these phases to operate in parallel on multiple
APs, split them out into separate functions and document the interactions
a little more clearly in both the BP and AP code paths.

No functional change intended.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.928917242@linutronix.de
2023-05-15 13:44:51 +02:00
Thomas Gleixner
c7f15dd3f0 x86/smpboot: Remove unnecessary barrier()
Peter stumbled over the barrier() after the invocation of smp_callin() in
start_secondary():

  "...this barrier() and it's comment seem weird vs smp_callin(). That
   function ends with an atomic bitop (it has to, at the very least it must
   not be weaker than store-release) but also has an explicit wmb() to order
   setup vs CPU_STARTING.

   There is no way the smp_processor_id() referred to in this comment can land
   before cpu_init() even without the barrier()."

The barrier() along with the comment was added in 2003 with commit
d8f19f2cac70 ("[PATCH] x86-64 merge") in the history tree. One of those
well documented combo patches of that time which changes world and some
more. The context back then was:

	/*
	 * Dont put anything before smp_callin(), SMP
	 * booting is too fragile that we want to limit the
	 * things done here to the most necessary things.
	 */
	cpu_init();
	smp_callin();

+	/* otherwise gcc will move up smp_processor_id before the cpu_init */
+ 	barrier();

	Dprintk("cpu %d: waiting for commence\n", smp_processor_id());

Even back in 2003 the compiler was not allowed to reorder that
smp_processor_id() invocation before the cpu_init() function call.
Especially not as smp_processor_id() resolved to:

  asm volatile("movl %%gs:%c1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory");

There is no trace of this change in any mailing list archive including the
back then official x86_64 list discuss@x86-64.org, which would explain the
problem this change solved.

The debug prints are gone by now and the the only smp_processor_id()
invocation today is farther down in start_secondary() after locking
vector_lock which itself prevents reordering.

Even if the compiler would be allowed to reorder this, the code would still
be correct as GSBASE is set up early in the assembly code and is valid when
the CPU reaches start_secondary(), while the code at the time when this
barrier was added did the GSBASE setup in cpu_init().

As the barrier has zero value, remove it.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.875713771@linutronix.de
2023-05-15 13:44:50 +02:00
Thomas Gleixner
cded367976 x86/smpboot: Restrict soft_restart_cpu() to SEV
Now that the CPU0 hotplug cruft is gone, the only user is AMD SEV.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.822234014@linutronix.de
2023-05-15 13:44:50 +02:00
Thomas Gleixner
5475abbde7 x86/smpboot: Remove the CPU0 hotplug kludge
This was introduced with commit e1c467e690 ("x86, hotplug: Wake up CPU0
via NMI instead of INIT, SIPI, SIPI") to eventually support physical
hotplug of CPU0:

 "We'll change this code in the future to wake up hard offlined CPU0 if
  real platform and request are available."

11 years later this has not happened and physical hotplug is not officially
supported. Remove the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.768845190@linutronix.de
2023-05-15 13:44:49 +02:00
Thomas Gleixner
e59e74dc48 x86/topology: Remove CPU0 hotplug option
This was introduced together with commit e1c467e690 ("x86, hotplug: Wake
up CPU0 via NMI instead of INIT, SIPI, SIPI") to eventually support
physical hotplug of CPU0:

 "We'll change this code in the future to wake up hard offlined CPU0 if
  real platform and request are available."

11 years later this has not happened and physical hotplug is not officially
supported. Remove the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.715707999@linutronix.de
2023-05-15 13:44:49 +02:00
Thomas Gleixner
666e1156b2 x86/smpboot: Rename start_cpu0() to soft_restart_cpu()
This is used in the SEV play_dead() implementation to re-online CPUs. But
that has nothing to do with CPU0.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.662319599@linutronix.de
2023-05-15 13:44:48 +02:00
Thomas Gleixner
134a12827b x86/smpboot: Avoid pointless delay calibration if TSC is synchronized
When TSC is synchronized across sockets then there is no reason to
calibrate the delay for the first CPU which comes up on a socket.

Just reuse the existing calibration value.

This removes 100ms pointlessly wasted time from CPU hotplug per socket.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.608773568@linutronix.de
2023-05-15 13:44:48 +02:00
Thomas Gleixner
ba831b7b1a cpu/hotplug: Mark arch_disable_smp_support() and bringup_nonboot_cpus() __init
No point in keeping them around.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.551974164@linutronix.de
2023-05-15 13:44:47 +02:00
Thomas Gleixner
5107e3ebb8 x86/smpboot: Cleanup topology_phys_to_logical_pkg()/die()
Make topology_phys_to_logical_pkg_die() static as it's only used in
smpboot.c and fixup the kernel-doc warnings for both functions.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Helge Deller <deller@gmx.de> # parisc
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck
Link: https://lore.kernel.org/r/20230512205255.493750666@linutronix.de
2023-05-15 13:44:47 +02:00
Huacai Chen
60aebc9559
drivers/firmware: Move sysfb_init() from device_initcall to subsys_initcall_sync
Consider a configuration like this:
1, efifb (or simpledrm) is built-in;
2, a native display driver (such as radeon) is also built-in.

As Javier said, this is not a common configuration (the native display
driver is usually built as a module), but it can happen and cause some
trouble.

In this case, since efifb, radeon and sysfb are all in device_initcall()
level, the order in practise is like this:

efifb registered at first, but no "efi-framebuffer" device yet. radeon
registered later, and /dev/fb0 created. sysfb_init() comes at last, it
registers "efi-framebuffer" and then causes an error message "efifb: a
framebuffer is already registered". Make sysfb_init() to be subsys_
initcall_sync() can avoid this. And Javier Martinez Canillas is trying
to make a more general solution in commit 873eb3b118 ("fbdev: Disable
sysfb device registration when removing conflicting FBs").

However, this patch still makes sense because it can make the screen
display as early as possible (We cannot move to subsys_initcall, since
sysfb_init() should be executed after PCI enumeration).

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220704011704.1418055-1-chenhuacai@loongson.cn
2023-05-15 13:36:30 +02:00
Ranjani Sridharan
225f37b578
ASoC: SOF: ipc4-pcm: reset all pipelines during FE DAI hw_free
Do not reset pipelines during the stop/suspend triggers in the BE DAI
ops as the BE DAI pipeline needs to be left in the PAUSED state. It should
only be reset during hw_free. This simplification is already done for
the FE pipelines and the DAI trigger only toggles the states between
PAUSED and RUNNING.

But because the FE DAI hw_free is invoked first and all the pipelines are
freed during this op, we need to make sure that the BE DAI pipeline also
gets reset before it is freed. So do not skip the pipelines that have the
skip_during_fe_trigger flag set when resetting pipelines.

Also, because the pipeline state changes are split between the FE and BE
DAI ops now, protect the BE DAI pipeline state changes with the
pipeline_state_mutex as well.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515112022.30297-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:25:37 +09:00
Ranjani Sridharan
81a5d69921
ASoC: SOF: Intel: hda-dai-ops: Split the get_hext_stream() op for IPC4
Introduce a separate op implementation for get_hext_stream() for IPC4.
This op will also be used to set the skip_during_fe_trigger flag for the
BE DAI pipeline. With this change, we can remove the flag setting in
sof_ipc4_dai_config() which will further simplify support for
DMIC/SSP/Soundwire in the LunarLake platform.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515112022.30297-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:25:37 +09:00
Jiapeng Chong
d904942aea
ASoC: SOF: Simplify the calculation of variables
./sound/soc/sof/pcm.c:372:27-29: WARNING !A || A && B is equivalent to !A || B.

Reported-by: Abaci Robot <abaci@linux.alibaba.com
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4938
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230512064225.75358-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:34 +09:00
Peter Ujfalusi
7a975e9b3c
ASoC: SOF: ipc4-topology: Use set_get_data() to send LARGE_CONFIG message
Instead of open coding the sending of sink format of the copier with
LARGE_CONFIG_SET message, use the proper function to do so.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230512105642.23437-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:33 +09:00
Pierre-Louis Bossart
fdecd4aaf8
ASoC: SOF: Intel: remove mutual exclusion between NOCODEC and HDA_LINK
The nocodec mode served two purposes so far
a) generate a test driver for DMIC/SSP without any codec connected
b) make sure the use of snd_hdac_ libraries was contained

b) is no longer an option for LunarLake, the HDaudio DMA is used for
DMIC/SSP and the HDA_LINK option needs to be enabled.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:04 +09:00
Pierre-Louis Bossart
746a78c286
ASoC: SOF: Intel: hda-dai: use HDA_LINK instead of HDA_AUDIO_CODEC
For LunarLake support, we will have to use HDAudio DMA-based DAIs even
for SSP/DMIC/SoundWire. That's completely different to the
HDA_AUDIO_CODEC, the DAI ops deal with DMA configuration and that can
happen in the absence of any HDAudio codec.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:03 +09:00
Pierre-Louis Bossart
b7b71b8cbd
ASoC: SOF: Intel: hda-dai: mark functions as __maybe_unused
hda_dai_hw_params, hda_dai_trigger(), hda_dai_hw_free are currently
only used for HDaudio codec support, but will be reused for
SSP/DMIC/SoundWire in the LunarLake/ACE2.x case. To avoid 'defined but
not used' errors or added complexity in Kconfig, mark all these
functions as __maybe_used.

When SSP/DMIC/SoundWire are added, some of these changes may be
reverted. For now this avoids compilation warnings.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:02 +09:00
Min-Hua Chen
cedd0bdc16 fs: fix incorrect fmode_t casts
Use __FMODE_NONOTIFY instead of FMODE_NONOTIFY to fixes
the following sparce warnings:
fs/overlayfs/file.c:48:37: sparse: warning: restricted fmode_t degrades to integer
fs/overlayfs/file.c:128:13: sparse: warning: restricted fmode_t degrades to integer
fs/open.c:1159:21: sparse: warning: restricted fmode_t degrades to integer

Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
Message-Id: <20230502232210.119063-1-minhuadotchen@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-05-15 13:14:01 +02:00
Pierre-Louis Bossart
caf7ad845e
ASoC: SOF: Intel: hda-dai: move hda_dai_prepare() code
Before we change the Kconfig support, move code around. No
functionality change with this commit in isolation.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:01 +09:00
Pierre-Louis Bossart
2dddff71e9
ASoC: SOF: Intel: Kconfig: move selection of PROBE_WORK_QUEUE
The probe workqueue is only needed if we have a Display Audio codec.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:00 +09:00
Pierre-Louis Bossart
fb0bdfe2a0
ASoC: SOF: Intel: clarify initialization when HDA_AUDIO_CODEC is not used
For LunarLake support, we need to enable HDA_LINK but we also want the
ability to remove HDaudio codec support, e.g. for 'nocodec'
tests. This requires a small change in the bus initialization without
any codec-specific callbacks provided.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:14:00 +09:00
Pierre-Louis Bossart
45f3c2f83a
ASoC: SOF: Intel: fix DAI number mismatch
The number of DAIs was based on a Kconfig option and the declaration
on another. Fix before changing the dependencies.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:13:59 +09:00
Pierre-Louis Bossart
de8e2d5d80
ASoC: SOF: Intel: hda-dai: remove use of cpu_dai->component drvdata
The existing code relies on conversions from cpu_dai to the sdev
structure pointer based on the cpu_dai component. This works fine for
HDaudio but will not work for SoundWire DAIs which are registered by a
different component. That's a problem preventing reuse of the HDaudio
DMA stream allocation for SoundWire DAIs starting with the LunarLake
platform.

This patch introduces a set of helpers to perform the conversion, and
an indirect way of retrieving the sdev pointer based on the
swidget->comp intermediate pointer.

Suggested-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:13:58 +09:00
Pierre-Louis Bossart
3886518fdb
ASoC: SOF: Intel: hda-dai: simplify .prepare callback
The code has been cleaned-up multiple times, but while adding the new
abstractions for DMIC/SSP/SoundWire it appears that we don't really
need a specific sequence for .prepare, and we can reuse what
.hw_params already does.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Rander Wang <rander.wang@intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Link: https://lore.kernel.org/r/20230512181702.117483-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:13:57 +09:00
Ranjani Sridharan
5a56c5335d
ASoC: SOF: ipc4-topology: Modify input audio format selection logic
The current selection logic assumes that input and output formats always
come in pairs in topology. Handle this special case by checking if all
input formats are the same. And for the case where there are multiple
supported input audio formats, modify the selection logic to pick the
audio formats based on the reference params which is either the FE
hw_params or the pipeline params based on the type of module.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-10-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:56 +09:00
Ranjani Sridharan
f37b702cb6
ASoC: SOF: ipc4-topology: New helper to check if all output formats are the same
Add a helper function to check if all formats are identical.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-9-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:56 +09:00
Ranjani Sridharan
1af13f221a
ASoC: SOF: ipc4-topology: Modify the output format selection logic
Modify the output format selection when there are multiple output
formats available to choose the one that matches the reference params.
The reference params depend on the type of module. In the case of
processing modules, the reference params are based on the selected input
audio format. This would be the case when a processing module does not
perform any format conversion during processing.

The only special case is the copier module. The copier module is capable
of format conversion but it is only used in the case when the output
is fixed to a single format. In the case of a module copier, when there are
multiple formats, the reference params is based on the selected input
params and the output format must match that of the selected input
format. In the case of host copier, the reference params should be
based on the input audio format for playback and the FE hw_params for
capture. In the case DAI copier, the reference params should be based on
the input audio format for capture and the FE hw_params for playback
when there is no format conversion in the pipeline from the host to the
DAI.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-8-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:55 +09:00
Ranjani Sridharan
35171c1a90
ASoC: SOF: ipc4-topology: Add a new helper function to get the valid bits
Add a new helper function sof_ipc4_get_valid_bits() to get the valid
bits in the PCM params.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-7-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:54 +09:00
Ranjani Sridharan
f1ceebdbe8
ASoC: SOF: ipc4-topology: Handle output format special case
The current topologies have input/output formats in pairs and even
though there are multiple output formats, they are all the same. Handle
this case as if there were only one format in topology. Also, add a check
for the number of output formats and reports errors where applicable.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:53 +09:00
Ranjani Sridharan
ae45aebe45
ASoC: SOF: ipc4-topology: Rename sof_ipc4_init_audio_fmt()
Rename it to sof_ipc4_init_input_audio_fmt() as it only does input
format selection now.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-5-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:52 +09:00
Ranjani Sridharan
a2e07c3319
ASoC: SOF: ipc4-topology: Move the call to init output format
In preparation for changing the logic for input/output format selection,
move the call to sof_ipc4_init_output_audio_fmt() into the individual
widget prepare ops.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:51 +09:00
Ranjani Sridharan
523042f63f
ASoC: SOF: ipc4-topology: Add a helper function for output format selection
Add a helper function to select the output format.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com
Link: https://lore.kernel.org/r/20230515103336.16132-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 20:12:51 +09:00