All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Gavin Shan <gshan@redhat.com>
Cc: James Morse <james.morse@arm.com>,
	linux-pm@vger.kernel.org, loongarch@lists.linux.dev,
	linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, kvmarm@lists.linux.dev,
	x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.org>,
	jianyong.wu@arm.com, justin.he@arm.com
Subject: Re: [RFC PATCH v2 14/35] ACPI: Only enumerate enabled (or functional) devices
Date: Fri, 20 Oct 2023 16:45:26 +0100	[thread overview]
Message-ID: <ZTKglklxz8PN9VmI@shell.armlinux.org.uk> (raw)
In-Reply-To: <ebfa8b5c-c09f-a1e6-e6ec-f4f3cda9de03@redhat.com>

On Tue, Sep 19, 2023 at 09:43:46AM +1000, Gavin Shan wrote:
> On 9/14/23 02:38, James Morse wrote:
> > +	if (!device->status.present && !device->status.enabled)
> > +		return device->status.functional;
> > +
> > +	return device->status.present && device->status.enabled;
> >   }
> >   EXPORT_SYMBOL_GPL(acpi_dev_ready_for_enumeration);
> 
> Looking at Salil's latest branch (vcpu-hotplug-RFCv2-rc7), there are 3 possible statuses:
> 
>   0x0       when CPU isn't present
>   0xD       when CPU is present, but not enabled
>   0xF       when CPU is present and enabled
> 
> Previously, the ACPI device is enumerated on 0xD and 0xF. We want to avoid the enumeration
> on 0xD since the processor isn't ready for enumeration in this specific case. The changed
> check (device->status.present && device->status.enabled) can ensure it. So the addition
> of checking @device->state.functional seems irrelevant to ARM64 vCPU hot-add? I guess we
> probably want a relaxation after the condition (device->status.present || device->status.enabled)
> becomes a more strict one (device->status.present && device->status.enabled)

Okay, I'm confused by your comment.

As mentioned in my reply to Jonathan, the current code tests for
device->status.present || device->status.functional, not
device->status.present || device->status.enabled.

Digging back in the history, the acpi_device_is_present() helper
was added in 202317a573b2 "ACPI / scan: Add acpi_device objects for all
device nodes in the namespace". The commit description states:

    Modify the ACPI namespace scanning code to register a struct
    acpi_device object for every namespace node representing a device,
    processor and so on, even if the device represented by that namespace
    node is reported to be not present and not functional by _STA.

It seems the code originally used this test

-       if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
-           !(sta & ACPI_STA_DEVICE_FUNCTIONING)) {

So this commit is just continuing that "tradition".

Digging further back, we find:

778cbc1d3abd ACPI: factor out device type and status checking

-       case ACPI_BUS_TYPE_PROCESSOR:
-       case ACPI_BUS_TYPE_DEVICE:
...
-               /*
-                * When the device is neither present nor functional, the
-                * device should not be added to Linux ACPI device tree.
-                * When the status of the device is not present but functinal,
-                * it should be added to Linux ACPI tree. For example : bay
-                * device , dock device.
-                * In such conditions it is unncessary to check whether it is
-                * bay device or dock device.
-                */
-               if (!device->status.present && !device->status.functional) {

and that comment seems to indicate where the !present && functional
case comes from.

So, I think it's necessary to continue supporting the !present &&
functional case otherwise it seems to me that we'll be regressing some
platforms.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

WARNING: multiple messages have this Message-ID (diff)
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Gavin Shan <gshan@redhat.com>
Cc: James Morse <james.morse@arm.com>,
	linux-pm@vger.kernel.org, loongarch@lists.linux.dev,
	linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, kvmarm@lists.linux.dev,
	x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.org>,
	jianyong.wu@arm.com, justin.he@arm.com
Subject: Re: [RFC PATCH v2 14/35] ACPI: Only enumerate enabled (or functional) devices
Date: Fri, 20 Oct 2023 16:45:26 +0100	[thread overview]
Message-ID: <ZTKglklxz8PN9VmI@shell.armlinux.org.uk> (raw)
In-Reply-To: <ebfa8b5c-c09f-a1e6-e6ec-f4f3cda9de03@redhat.com>

On Tue, Sep 19, 2023 at 09:43:46AM +1000, Gavin Shan wrote:
> On 9/14/23 02:38, James Morse wrote:
> > +	if (!device->status.present && !device->status.enabled)
> > +		return device->status.functional;
> > +
> > +	return device->status.present && device->status.enabled;
> >   }
> >   EXPORT_SYMBOL_GPL(acpi_dev_ready_for_enumeration);
> 
> Looking at Salil's latest branch (vcpu-hotplug-RFCv2-rc7), there are 3 possible statuses:
> 
>   0x0       when CPU isn't present
>   0xD       when CPU is present, but not enabled
>   0xF       when CPU is present and enabled
> 
> Previously, the ACPI device is enumerated on 0xD and 0xF. We want to avoid the enumeration
> on 0xD since the processor isn't ready for enumeration in this specific case. The changed
> check (device->status.present && device->status.enabled) can ensure it. So the addition
> of checking @device->state.functional seems irrelevant to ARM64 vCPU hot-add? I guess we
> probably want a relaxation after the condition (device->status.present || device->status.enabled)
> becomes a more strict one (device->status.present && device->status.enabled)

Okay, I'm confused by your comment.

As mentioned in my reply to Jonathan, the current code tests for
device->status.present || device->status.functional, not
device->status.present || device->status.enabled.

Digging back in the history, the acpi_device_is_present() helper
was added in 202317a573b2 "ACPI / scan: Add acpi_device objects for all
device nodes in the namespace". The commit description states:

    Modify the ACPI namespace scanning code to register a struct
    acpi_device object for every namespace node representing a device,
    processor and so on, even if the device represented by that namespace
    node is reported to be not present and not functional by _STA.

It seems the code originally used this test

-       if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
-           !(sta & ACPI_STA_DEVICE_FUNCTIONING)) {

So this commit is just continuing that "tradition".

Digging further back, we find:

778cbc1d3abd ACPI: factor out device type and status checking

-       case ACPI_BUS_TYPE_PROCESSOR:
-       case ACPI_BUS_TYPE_DEVICE:
...
-               /*
-                * When the device is neither present nor functional, the
-                * device should not be added to Linux ACPI device tree.
-                * When the status of the device is not present but functinal,
-                * it should be added to Linux ACPI tree. For example : bay
-                * device , dock device.
-                * In such conditions it is unncessary to check whether it is
-                * bay device or dock device.
-                */
-               if (!device->status.present && !device->status.functional) {

and that comment seems to indicate where the !present && functional
case comes from.

So, I think it's necessary to continue supporting the !present &&
functional case otherwise it seems to me that we'll be regressing some
platforms.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

WARNING: multiple messages have this Message-ID (diff)
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Gavin Shan <gshan@redhat.com>
Cc: James Morse <james.morse@arm.com>,
	linux-pm@vger.kernel.org, loongarch@lists.linux.dev,
	linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, kvmarm@lists.linux.dev,
	x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.org>,
	jianyong.wu@arm.com, justin.he@arm.com
Subject: Re: [RFC PATCH v2 14/35] ACPI: Only enumerate enabled (or functional) devices
Date: Fri, 20 Oct 2023 16:45:26 +0100	[thread overview]
Message-ID: <ZTKglklxz8PN9VmI@shell.armlinux.org.uk> (raw)
In-Reply-To: <ebfa8b5c-c09f-a1e6-e6ec-f4f3cda9de03@redhat.com>

On Tue, Sep 19, 2023 at 09:43:46AM +1000, Gavin Shan wrote:
> On 9/14/23 02:38, James Morse wrote:
> > +	if (!device->status.present && !device->status.enabled)
> > +		return device->status.functional;
> > +
> > +	return device->status.present && device->status.enabled;
> >   }
> >   EXPORT_SYMBOL_GPL(acpi_dev_ready_for_enumeration);
> 
> Looking at Salil's latest branch (vcpu-hotplug-RFCv2-rc7), there are 3 possible statuses:
> 
>   0x0       when CPU isn't present
>   0xD       when CPU is present, but not enabled
>   0xF       when CPU is present and enabled
> 
> Previously, the ACPI device is enumerated on 0xD and 0xF. We want to avoid the enumeration
> on 0xD since the processor isn't ready for enumeration in this specific case. The changed
> check (device->status.present && device->status.enabled) can ensure it. So the addition
> of checking @device->state.functional seems irrelevant to ARM64 vCPU hot-add? I guess we
> probably want a relaxation after the condition (device->status.present || device->status.enabled)
> becomes a more strict one (device->status.present && device->status.enabled)

Okay, I'm confused by your comment.

As mentioned in my reply to Jonathan, the current code tests for
device->status.present || device->status.functional, not
device->status.present || device->status.enabled.

Digging back in the history, the acpi_device_is_present() helper
was added in 202317a573b2 "ACPI / scan: Add acpi_device objects for all
device nodes in the namespace". The commit description states:

    Modify the ACPI namespace scanning code to register a struct
    acpi_device object for every namespace node representing a device,
    processor and so on, even if the device represented by that namespace
    node is reported to be not present and not functional by _STA.

It seems the code originally used this test

-       if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
-           !(sta & ACPI_STA_DEVICE_FUNCTIONING)) {

So this commit is just continuing that "tradition".

Digging further back, we find:

778cbc1d3abd ACPI: factor out device type and status checking

-       case ACPI_BUS_TYPE_PROCESSOR:
-       case ACPI_BUS_TYPE_DEVICE:
...
-               /*
-                * When the device is neither present nor functional, the
-                * device should not be added to Linux ACPI device tree.
-                * When the status of the device is not present but functinal,
-                * it should be added to Linux ACPI tree. For example : bay
-                * device , dock device.
-                * In such conditions it is unncessary to check whether it is
-                * bay device or dock device.
-                */
-               if (!device->status.present && !device->status.functional) {

and that comment seems to indicate where the !present && functional
case comes from.

So, I think it's necessary to continue supporting the !present &&
functional case otherwise it seems to me that we'll be regressing some
platforms.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2023-10-20 15:45 UTC|newest]

Thread overview: 456+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-13 16:37 [RFC PATCH v2 00/35] ACPI/arm64: add support for virtual cpuhotplug James Morse
2023-09-13 16:37 ` James Morse
2023-09-13 16:37 ` James Morse
2023-09-13 16:37 ` [RFC PATCH v2 01/35] ACPI: Move ACPI_HOTPLUG_CPU to be disabled on arm64 and riscv James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  8:54   ` Russell King (Oracle)
2023-09-14  8:54     ` Russell King (Oracle)
2023-09-14  8:54     ` Russell King (Oracle)
2023-09-13 16:37 ` [RFC PATCH v2 02/35] drivers: base: Use present CPUs in GENERIC_CPU_DEVICES James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  8:20   ` Russell King (Oracle)
2023-09-14  8:20     ` Russell King (Oracle)
2023-09-14  8:20     ` Russell King (Oracle)
2023-09-14 10:56     ` Jonathan Cameron
2023-09-14 10:56       ` Jonathan Cameron
2023-09-14 10:56       ` Jonathan Cameron
2023-09-14 11:11       ` Russell King (Oracle)
2023-09-14 11:11         ` Russell King (Oracle)
2023-09-14 11:11         ` Russell King (Oracle)
2023-09-14 10:56   ` Jonathan Cameron
2023-09-14 10:56     ` Jonathan Cameron
2023-09-14 10:56     ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 03/35] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  8:33   ` Russell King (Oracle)
2023-09-14  8:33     ` Russell King (Oracle)
2023-09-14  8:33     ` Russell King (Oracle)
2023-09-14 11:00   ` Jonathan Cameron
2023-09-14 11:00     ` Jonathan Cameron
2023-09-14 11:00     ` Jonathan Cameron
2023-09-14 11:05   ` Jonathan Cameron
2023-09-14 11:05     ` Jonathan Cameron
2023-09-14 11:05     ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 04/35] drivers: base: Move cpu_dev_init() after node_dev_init() James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  9:40   ` Russell King (Oracle)
2023-09-14  9:40     ` Russell King (Oracle)
2023-09-14  9:40     ` Russell King (Oracle)
2023-09-14 11:16   ` Jonathan Cameron
2023-09-14 11:16     ` Jonathan Cameron
2023-09-14 11:16     ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 05/35] drivers: base: Print a warning instead of panic() when register_cpu() fails James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  9:52   ` Russell King (Oracle)
2023-09-14  9:52     ` Russell King (Oracle)
2023-09-14  9:52     ` Russell King (Oracle)
2023-09-18  3:33   ` Gavin Shan
2023-09-18  3:33     ` Gavin Shan
2023-09-18  3:33     ` Gavin Shan
2023-10-20 11:16     ` Russell King (Oracle)
2023-10-20 11:16       ` Russell King (Oracle)
2023-10-20 11:16       ` Russell King (Oracle)
2023-09-13 16:37 ` [RFC PATCH v2 06/35] arm64: setup: Switch over to GENERIC_CPU_DEVICES using arch_register_cpu() James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14  9:56   ` Russell King (Oracle)
2023-09-14  9:56     ` Russell King (Oracle)
2023-09-14  9:56     ` Russell King (Oracle)
2023-09-14 11:27   ` Jonathan Cameron
2023-09-14 11:27     ` Jonathan Cameron
2023-09-14 11:27     ` Jonathan Cameron
2023-09-14 14:07     ` Russell King (Oracle)
2023-09-14 14:07       ` Russell King (Oracle)
2023-09-14 14:07       ` Russell King (Oracle)
2023-09-14 14:56       ` Jonathan Cameron
2023-09-14 14:56         ` Jonathan Cameron
2023-09-14 14:56         ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 07/35] x86: intel_epb: Don't rely on link order James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14 10:02   ` Russell King (Oracle)
2023-09-14 10:02     ` Russell King (Oracle)
2023-09-14 10:02     ` Russell King (Oracle)
2023-09-18  3:48   ` Gavin Shan
2023-09-18  3:48     ` Gavin Shan
2023-09-18  3:48     ` Gavin Shan
2023-09-13 16:37 ` [RFC PATCH v2 08/35] x86/topology: Switch over to GENERIC_CPU_DEVICES James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14 10:01   ` Russell King (Oracle)
2023-09-14 10:01     ` Russell King (Oracle)
2023-09-14 10:01     ` Russell King (Oracle)
2023-09-14 11:40   ` Jonathan Cameron
2023-09-14 11:40     ` Jonathan Cameron
2023-09-14 11:40     ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 09/35] LoongArch: " James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14 10:03   ` Russell King (Oracle)
2023-09-14 10:03     ` Russell King (Oracle)
2023-09-14 10:03     ` Russell King (Oracle)
2023-09-14 11:47   ` Jonathan Cameron
2023-09-14 11:47     ` Jonathan Cameron
2023-09-14 11:47     ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 10/35] riscv: " James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14 10:04   ` Russell King (Oracle)
2023-09-14 10:04     ` Russell King (Oracle)
2023-09-14 10:04     ` Russell King (Oracle)
2023-09-14 11:48     ` Jonathan Cameron
2023-09-14 11:48       ` Jonathan Cameron
2023-09-14 11:48       ` Jonathan Cameron
2023-09-13 16:37 ` [RFC PATCH v2 11/35] arch_topology: Make register_cpu_capacity_sysctl() tolerant to late CPUs James Morse
2023-09-13 16:37   ` James Morse
2023-09-13 16:37   ` James Morse
2023-09-14 12:01   ` Jonathan Cameron
2023-09-14 12:01     ` Jonathan Cameron
2023-09-14 12:01     ` Jonathan Cameron
2023-10-20 11:53     ` Russell King (Oracle)
2023-10-20 11:53       ` Russell King (Oracle)
2023-10-20 11:53       ` Russell King (Oracle)
2023-10-21 10:56       ` Greg KH
2023-10-21 10:56         ` Greg KH
2023-10-21 10:56         ` Greg KH
2023-10-20 13:44     ` Russell King (Oracle)
2023-10-20 13:44       ` Russell King (Oracle)
2023-10-20 13:44       ` Russell King (Oracle)
2023-11-14 10:04       ` Russell King (Oracle)
2023-11-14 10:04         ` Russell King (Oracle)
2023-11-14 10:04         ` Russell King (Oracle)
2023-11-30 16:46       ` Jonathan Cameron
2023-11-30 16:46         ` Jonathan Cameron
2023-11-30 16:46         ` Jonathan Cameron
2023-09-13 16:38 ` [RFC PATCH v2 12/35] ACPI: Use the acpi_device_is_present() helper in more places James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 12:04   ` Jonathan Cameron
2023-09-14 12:04     ` Jonathan Cameron
2023-09-14 12:04     ` Jonathan Cameron
2023-09-18  4:06   ` Gavin Shan
2023-09-18  4:06     ` Gavin Shan
2023-09-18  4:06     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 13/35] ACPI: Rename acpi_scan_device_not_present() to be about enumeration James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-18  4:13   ` Gavin Shan
2023-09-18  4:13     ` Gavin Shan
2023-09-18  4:13     ` Gavin Shan
2023-10-20 16:01   ` Russell King (Oracle)
2023-10-20 16:01     ` Russell King (Oracle)
2023-10-20 16:01     ` Russell King (Oracle)
2023-10-20 16:41     ` Jonathan Cameron
2023-10-20 16:41       ` Jonathan Cameron
2023-10-20 16:41       ` Jonathan Cameron
2023-09-13 16:38 ` [RFC PATCH v2 14/35] ACPI: Only enumerate enabled (or functional) devices James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 12:27   ` Jonathan Cameron
2023-09-14 12:27     ` Jonathan Cameron
2023-09-14 12:27     ` Jonathan Cameron
2023-09-14 13:09     ` Jonathan Cameron
2023-09-14 13:09       ` Jonathan Cameron
2023-09-14 13:09       ` Jonathan Cameron
2023-10-20 15:32       ` Russell King (Oracle)
2023-10-20 15:32         ` Russell King (Oracle)
2023-10-20 15:32         ` Russell King (Oracle)
2023-10-20 16:43         ` Jonathan Cameron
2023-10-20 16:43           ` Jonathan Cameron
2023-10-20 16:43           ` Jonathan Cameron
2023-09-18  4:38     ` Gavin Shan
2023-09-18  4:38       ` Gavin Shan
2023-09-18  4:38       ` Gavin Shan
2023-09-18 23:43   ` Gavin Shan
2023-09-18 23:43     ` Gavin Shan
2023-09-18 23:43     ` Gavin Shan
2023-10-20 15:45     ` Russell King (Oracle) [this message]
2023-10-20 15:45       ` Russell King (Oracle)
2023-10-20 15:45       ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 15/35] ACPI: processor: Add support for processors described as container packages James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 13:53   ` Jonathan Cameron
2023-09-14 13:53     ` Jonathan Cameron
2023-09-14 13:53     ` Jonathan Cameron
2023-11-03 10:43     ` Russell King (Oracle)
2023-11-03 10:43       ` Russell King (Oracle)
2023-11-03 10:43       ` Russell King (Oracle)
2023-11-03 10:57       ` Russell King (Oracle)
2023-11-03 10:57         ` Russell King (Oracle)
2023-11-03 10:57         ` Russell King (Oracle)
2023-11-03 12:52       ` Jonathan Cameron
2023-11-03 12:52         ` Jonathan Cameron
2023-11-03 12:52         ` Jonathan Cameron
2023-09-18  5:02   ` Gavin Shan
2023-09-18  5:02     ` Gavin Shan
2023-09-18  5:02     ` Gavin Shan
2023-11-03 10:54     ` Russell King (Oracle)
2023-11-03 10:54       ` Russell King (Oracle)
2023-11-03 10:54       ` Russell King (Oracle)
2023-11-03 11:37   ` Russell King (Oracle)
2023-11-03 11:37     ` Russell King (Oracle)
2023-11-03 11:37     ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 16/35] ACPI: processor: Register CPUs that are online, but not described in the DSDT James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 13:56   ` Jonathan Cameron
2023-09-14 13:56     ` Jonathan Cameron
2023-09-14 13:56     ` Jonathan Cameron
2023-09-18  5:12   ` Gavin Shan
2023-09-18  5:12     ` Gavin Shan
2023-09-18  5:12     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 17/35] ACPI: processor: Register all CPUs from acpi_processor_get_info() James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-18  5:19   ` Gavin Shan
2023-09-18  5:19     ` Gavin Shan
2023-09-18  5:19     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 18/35] ACPI: Rename ACPI_HOTPLUG_CPU to include 'present' James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-18  5:22   ` Gavin Shan
2023-09-18  5:22     ` Gavin Shan
2023-09-18  5:22     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 19/35] ACPI: Move acpi_bus_trim_one() before acpi_scan_hot_remove() James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:10   ` Jonathan Cameron
2023-09-14 14:10     ` Jonathan Cameron
2023-09-14 14:10     ` Jonathan Cameron
2023-09-18  5:36   ` Gavin Shan
2023-09-18  5:36     ` Gavin Shan
2023-09-18  5:36     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 20/35] ACPI: Rename acpi_processor_hotadd_init and remove pre-processor guards James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:17   ` Jonathan Cameron
2023-09-14 14:17     ` Jonathan Cameron
2023-09-14 14:17     ` Jonathan Cameron
2023-09-18  5:50     ` Gavin Shan
2023-09-18  5:50       ` Gavin Shan
2023-09-18  5:50       ` Gavin Shan
2023-10-23 20:01       ` Russell King (Oracle)
2023-10-23 20:01         ` Russell King (Oracle)
2023-10-23 20:01         ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 21/35] ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:28   ` Jonathan Cameron
2023-09-14 14:28     ` Jonathan Cameron
2023-09-14 14:28     ` Jonathan Cameron
2023-09-19  0:31   ` Gavin Shan
2023-09-19  0:31     ` Gavin Shan
2023-09-19  0:31     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 22/35] ACPI: Check _STA present bit before making CPUs not present James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:31   ` Jonathan Cameron
2023-09-14 14:31     ` Jonathan Cameron
2023-09-14 14:31     ` Jonathan Cameron
2023-11-03 14:09     ` Russell King (Oracle)
2023-11-03 14:09       ` Russell King (Oracle)
2023-11-03 14:09       ` Russell King (Oracle)
2023-09-19  0:45   ` Gavin Shan
2023-09-19  0:45     ` Gavin Shan
2023-09-19  0:45     ` Gavin Shan
2023-11-03 14:37     ` Russell King (Oracle)
2023-11-03 14:37       ` Russell King (Oracle)
2023-11-03 14:37       ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 23/35] ACPI: Warn when the present bit changes but the feature is not enabled James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:32   ` Jonathan Cameron
2023-09-14 14:32     ` Jonathan Cameron
2023-09-14 14:32     ` Jonathan Cameron
2023-09-19  0:49   ` Gavin Shan
2023-09-19  0:49     ` Gavin Shan
2023-09-19  0:49     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 24/35] drivers: base: Implement weak arch_unregister_cpu() James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:39   ` Jonathan Cameron
2023-09-14 14:39     ` Jonathan Cameron
2023-09-14 14:39     ` Jonathan Cameron
2023-09-19  0:59   ` Gavin Shan
2023-09-19  0:59     ` Gavin Shan
2023-09-19  0:59     ` Gavin Shan
2023-10-23  8:44     ` Russell King (Oracle)
2023-10-23  8:44       ` Russell King (Oracle)
2023-10-23  8:44       ` Russell King (Oracle)
2023-10-23  8:55       ` Russell King (Oracle)
2023-10-23  8:55         ` Russell King (Oracle)
2023-10-23  8:55         ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 25/35] LoongArch: Use the __weak version of arch_unregister_cpu() James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:41   ` Jonathan Cameron
2023-09-14 14:41     ` Jonathan Cameron
2023-09-14 14:41     ` Jonathan Cameron
2023-10-23  8:48     ` Russell King (Oracle)
2023-10-23  8:48       ` Russell King (Oracle)
2023-10-23  8:48       ` Russell King (Oracle)
2023-09-19  1:09   ` Gavin Shan
2023-09-19  1:09     ` Gavin Shan
2023-09-19  1:09     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 26/35] arm64: acpi: Move get_cpu_for_acpi_id() to a header James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 14:43   ` Jonathan Cameron
2023-09-14 14:43     ` Jonathan Cameron
2023-09-14 14:43     ` Jonathan Cameron
2023-09-19  1:16   ` Gavin Shan
2023-09-19  1:16     ` Gavin Shan
2023-09-19  1:16     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 27/35] ACPICA: Add new MADT GICC flags fields [code first?] James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14  7:57   ` Ard Biesheuvel
2023-09-14  7:57     ` Ard Biesheuvel
2023-09-14  7:57     ` Ard Biesheuvel
2023-09-14 14:54     ` Jonathan Cameron
2023-09-14 14:54       ` Jonathan Cameron
2023-09-14 14:54       ` Jonathan Cameron
2023-09-14 15:34       ` Ard Biesheuvel
2023-09-14 15:34         ` Ard Biesheuvel
2023-09-14 15:34         ` Ard Biesheuvel
2023-09-14 15:49         ` Russell King (Oracle)
2023-09-14 15:49           ` Russell King (Oracle)
2023-09-14 15:49           ` Russell King (Oracle)
2023-09-15  2:29         ` Salil Mehta
2023-09-15  2:29           ` Salil Mehta
2023-09-15  2:29           ` Salil Mehta
2023-09-15  7:09           ` Russell King (Oracle)
2023-09-15  7:09             ` Russell King (Oracle)
2023-09-15  7:09             ` Russell King (Oracle)
2023-09-15  8:45             ` Rafael J. Wysocki
2023-09-15  8:45               ` Rafael J. Wysocki
2023-09-15  8:45               ` Rafael J. Wysocki
2023-09-15  9:34               ` Salil Mehta
2023-09-15  9:34                 ` Salil Mehta
2023-09-15  9:34                 ` Salil Mehta
2023-09-15 10:21                 ` Rafael J. Wysocki
2023-09-15 10:21                   ` Rafael J. Wysocki
2023-09-15 10:21                   ` Rafael J. Wysocki
2023-09-15 14:49                   ` Salil Mehta
2023-09-15 14:49                     ` Salil Mehta
2023-09-15 14:49                     ` Salil Mehta
2023-09-15 15:16                     ` Russell King (Oracle)
2023-09-15 15:16                       ` Russell King (Oracle)
2023-09-15 15:16                       ` Russell King (Oracle)
2023-09-15 16:46                       ` Salil Mehta
2023-09-15 16:46                         ` Salil Mehta
2023-09-15 16:46                         ` Salil Mehta
2023-09-15 13:43                 ` Russell King (Oracle)
2023-09-15 13:43                   ` Russell King (Oracle)
2023-09-15 13:43                   ` Russell King (Oracle)
2023-09-15 15:17                   ` Salil Mehta
2023-09-15 15:17                     ` Salil Mehta
2023-09-15 15:17                     ` Salil Mehta
2023-09-15 15:32                     ` Jonathan Cameron
2023-09-15 15:32                       ` Jonathan Cameron
2023-09-15 15:32                       ` Jonathan Cameron
2023-09-15 17:12                       ` Salil Mehta
2023-09-15 17:12                         ` Salil Mehta
2023-09-15 17:12                         ` Salil Mehta
2023-09-15 15:41                     ` Russell King (Oracle)
2023-09-15 15:41                       ` Russell King (Oracle)
2023-09-15 15:41                       ` Russell King (Oracle)
2023-09-15 17:07                       ` Salil Mehta
2023-09-15 17:07                         ` Salil Mehta
2023-09-15 17:07                         ` Salil Mehta
2023-09-15  9:21             ` Salil Mehta
2023-09-15  9:21               ` Salil Mehta
2023-09-15  9:21               ` Salil Mehta
2023-09-14 14:48   ` Jonathan Cameron
2023-09-14 14:48     ` Jonathan Cameron
2023-09-14 14:48     ` Jonathan Cameron
2023-09-13 16:38 ` [RFC PATCH v2 28/35] arm64, irqchip/gic-v3, ACPI: Move MADT GICC enabled check into a helper James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14  8:09   ` Russell King (Oracle)
2023-09-14  8:09     ` Russell King (Oracle)
2023-09-14  8:09     ` Russell King (Oracle)
2023-09-14 14:58   ` Jonathan Cameron
2023-09-14 14:58     ` Jonathan Cameron
2023-09-14 14:58     ` Jonathan Cameron
2023-09-19  1:23   ` Gavin Shan
2023-09-19  1:23     ` Gavin Shan
2023-09-19  1:23     ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 29/35] irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc() James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 15:02   ` Jonathan Cameron
2023-09-14 15:02     ` Jonathan Cameron
2023-09-14 15:02     ` Jonathan Cameron
2023-10-23 18:58     ` Russell King (Oracle)
2023-10-23 18:58       ` Russell King (Oracle)
2023-10-23 18:58       ` Russell King (Oracle)
2023-09-19  3:39   ` Gavin Shan
2023-09-19  3:39     ` Gavin Shan
2023-09-19  3:39     ` Gavin Shan
2023-09-19  3:51     ` Gavin Shan
2023-09-19  3:51       ` Gavin Shan
2023-09-19  3:51       ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 30/35] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14  8:10   ` Russell King (Oracle)
2023-09-14  8:10     ` Russell King (Oracle)
2023-09-14  8:10     ` Russell King (Oracle)
2023-09-19  3:53     ` Gavin Shan
2023-09-19  3:53       ` Gavin Shan
2023-09-19  3:53       ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 31/35] arm64: psci: Ignore DENIED CPUs James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 16:01   ` Jonathan Cameron
2023-09-14 16:01     ` Jonathan Cameron
2023-09-14 16:01     ` Jonathan Cameron
2023-09-19  4:31     ` Gavin Shan
2023-09-19  4:31       ` Gavin Shan
2023-09-19  4:31       ` Gavin Shan
2023-09-13 16:38 ` [RFC PATCH v2 32/35] ACPI: add support to register CPUs based on the _STA enabled bit James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 16:13   ` Jonathan Cameron
2023-09-14 16:13     ` Jonathan Cameron
2023-09-14 16:13     ` Jonathan Cameron
2023-09-19 10:24     ` Russell King (Oracle)
2023-09-19 10:24       ` Russell King (Oracle)
2023-09-19 10:24       ` Russell King (Oracle)
2023-09-19  4:46   ` Gavin Shan
2023-09-19  4:46     ` Gavin Shan
2023-09-19  4:46     ` Gavin Shan
2023-09-19  9:55     ` Russell King (Oracle)
2023-09-19  9:55       ` Russell King (Oracle)
2023-09-19  9:55       ` Russell King (Oracle)
2023-09-13 16:38 ` [RFC PATCH v2 33/35] arm64: document virtual CPU hotplug's expectations James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 16:41   ` Jonathan Cameron
2023-09-14 16:41     ` Jonathan Cameron
2023-09-14 16:41     ` Jonathan Cameron
2023-09-13 16:38 ` [RFC PATCH v2 34/35] ACPI: Add _OSC bits to advertise OS support for toggling CPU present/enabled James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 16:50   ` Jonathan Cameron
2023-09-14 16:50     ` Jonathan Cameron
2023-09-14 16:50     ` Jonathan Cameron
2023-09-13 16:38 ` [RFC PATCH v2 35/35] cpumask: Add enabled cpumask for present CPUs that can be brought online James Morse
2023-09-13 16:38   ` James Morse
2023-09-13 16:38   ` James Morse
2023-09-14 16:54   ` Jonathan Cameron
2023-09-14 16:54     ` Jonathan Cameron
2023-09-14 16:54     ` Jonathan Cameron
2023-09-18 10:27 ` [RFC PATCH v2 00/35] ACPI/arm64: add support for virtual cpuhotplug Russell King (Oracle)
2023-09-18 10:27   ` Russell King (Oracle)
2023-09-18 10:27   ` Russell King (Oracle)
2023-09-26 13:16 ` Salil Mehta
2023-09-26 13:16   ` Salil Mehta
2023-09-26 13:16   ` Salil Mehta

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=ZTKglklxz8PN9VmI@shell.armlinux.org.uk \
    --to=linux@armlinux.org.uk \
    --cc=gshan@redhat.com \
    --cc=james.morse@arm.com \
    --cc=jean-philippe@linaro.org \
    --cc=jianyong.wu@arm.com \
    --cc=justin.he@arm.com \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=loongarch@lists.linux.dev \
    --cc=salil.mehta@huawei.com \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.