From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Russell King <rmk+kernel@armlinux.org.uk>
Cc: <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>, <linux-csky@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <linux-ia64@vger.kernel.org>,
<linux-parisc@vger.kernel.org>,
Salil Mehta <salil.mehta@huawei.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
<jianyong.wu@arm.com>, <justin.he@arm.com>,
James Morse <james.morse@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH 14/21] x86/topology: Switch over to GENERIC_CPU_DEVICES
Date: Thu, 30 Nov 2023 16:56:40 +0000 [thread overview]
Message-ID: <20231130165640.00006f6c@Huawei.com> (raw)
In-Reply-To: <E1r5R3l-00Cszm-UA@rmk-PC.armlinux.org.uk>
On Tue, 21 Nov 2023 13:45:01 +0000
Russell King <rmk+kernel@armlinux.org.uk> wrote:
> From: James Morse <james.morse@arm.com>
>
> Now that GENERIC_CPU_DEVICES calls arch_register_cpu(), which can be
> overridden by the arch code, switch over to this to allow common code
> to choose when the register_cpu() call is made.
>
> x86's struct cpus come from struct x86_cpu, which has no other members
> or users. Remove this and use the version defined by common code.
>
> This is an intermediate step to the logic being moved to drivers/acpi,
> where GENERIC_CPU_DEVICES will do the work when booting with acpi=off.
>
> This patch also has the effect of moving the registration of CPUs from
> subsys to driver core initialisation, prior to any initcalls running.
>
> Signed-off-by: James Morse <james.morse@arm.com>
> Reviewed-by: Gavin Shan <gshan@redhat.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Russell King <rmk+kernel@armlinux.org.uk>
Cc: <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>, <linux-csky@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <linux-ia64@vger.kernel.org>,
<linux-parisc@vger.kernel.org>,
Salil Mehta <salil.mehta@huawei.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
<jianyong.wu@arm.com>, <justin.he@arm.com>,
James Morse <james.morse@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH 14/21] x86/topology: Switch over to GENERIC_CPU_DEVICES
Date: Thu, 30 Nov 2023 16:56:40 +0000 [thread overview]
Message-ID: <20231130165640.00006f6c@Huawei.com> (raw)
In-Reply-To: <E1r5R3l-00Cszm-UA@rmk-PC.armlinux.org.uk>
On Tue, 21 Nov 2023 13:45:01 +0000
Russell King <rmk+kernel@armlinux.org.uk> wrote:
> From: James Morse <james.morse@arm.com>
>
> Now that GENERIC_CPU_DEVICES calls arch_register_cpu(), which can be
> overridden by the arch code, switch over to this to allow common code
> to choose when the register_cpu() call is made.
>
> x86's struct cpus come from struct x86_cpu, which has no other members
> or users. Remove this and use the version defined by common code.
>
> This is an intermediate step to the logic being moved to drivers/acpi,
> where GENERIC_CPU_DEVICES will do the work when booting with acpi=off.
>
> This patch also has the effect of moving the registration of CPUs from
> subsys to driver core initialisation, prior to any initcalls running.
>
> Signed-off-by: James Morse <james.morse@arm.com>
> Reviewed-by: Gavin Shan <gshan@redhat.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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linux-riscv mailing list
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http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Russell King <rmk+kernel@armlinux.org.uk>
Cc: <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>, <linux-csky@vger.kernel.org>,
<linux-doc@vger.kernel.org>, <linux-ia64@vger.kernel.org>,
<linux-parisc@vger.kernel.org>,
Salil Mehta <salil.mehta@huawei.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
<jianyong.wu@arm.com>, <justin.he@arm.com>,
James Morse <james.morse@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH 14/21] x86/topology: Switch over to GENERIC_CPU_DEVICES
Date: Thu, 30 Nov 2023 16:56:40 +0000 [thread overview]
Message-ID: <20231130165640.00006f6c@Huawei.com> (raw)
In-Reply-To: <E1r5R3l-00Cszm-UA@rmk-PC.armlinux.org.uk>
On Tue, 21 Nov 2023 13:45:01 +0000
Russell King <rmk+kernel@armlinux.org.uk> wrote:
> From: James Morse <james.morse@arm.com>
>
> Now that GENERIC_CPU_DEVICES calls arch_register_cpu(), which can be
> overridden by the arch code, switch over to this to allow common code
> to choose when the register_cpu() call is made.
>
> x86's struct cpus come from struct x86_cpu, which has no other members
> or users. Remove this and use the version defined by common code.
>
> This is an intermediate step to the logic being moved to drivers/acpi,
> where GENERIC_CPU_DEVICES will do the work when booting with acpi=off.
>
> This patch also has the effect of moving the registration of CPUs from
> subsys to driver core initialisation, prior to any initcalls running.
>
> Signed-off-by: James Morse <james.morse@arm.com>
> Reviewed-by: Gavin Shan <gshan@redhat.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
_______________________________________________
linux-arm-kernel mailing list
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next prev parent reply other threads:[~2023-11-30 16:56 UTC|newest]
Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 13:43 [PATCH 00/21] Initial cleanups for vCPU hotplug Russell King (Oracle)
2023-11-21 13:43 ` Russell King (Oracle)
2023-11-21 13:43 ` Russell King (Oracle)
2023-11-21 13:43 ` [PATCH 01/21] arch_topology: Make register_cpu_capacity_sysctl() tolerant to late CPUs Russell King
2023-11-21 13:43 ` Russell King
2023-11-21 13:43 ` Russell King
2023-11-30 16:46 ` Jonathan Cameron
2023-11-30 16:46 ` Jonathan Cameron
2023-11-30 16:46 ` Jonathan Cameron
2023-12-01 10:45 ` Thomas Gleixner
2023-12-01 10:45 ` Thomas Gleixner
2023-12-01 10:45 ` Thomas Gleixner
2023-11-21 13:44 ` [PATCH 02/21] x86: intel_epb: Don't rely on link order Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-22 20:12 ` Rafael J. Wysocki
2023-11-22 20:12 ` Rafael J. Wysocki
2023-11-22 20:12 ` Rafael J. Wysocki
2023-11-21 13:44 ` [PATCH 03/21] x86/topology: remove arch_*register_cpu() exports Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-30 16:48 ` Jonathan Cameron
2023-11-30 16:48 ` Jonathan Cameron
2023-11-30 16:48 ` Jonathan Cameron
2023-11-21 13:44 ` [PATCH 04/21] Loongarch: " Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-30 16:48 ` Jonathan Cameron
2023-11-30 16:48 ` Jonathan Cameron
2023-11-30 16:48 ` Jonathan Cameron
2023-11-21 13:44 ` [PATCH 05/21] ACPI: Move ACPI_HOTPLUG_CPU to be disabled on arm64 and riscv Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-22 20:16 ` Rafael J. Wysocki
2023-11-22 20:16 ` Rafael J. Wysocki
2023-11-22 20:16 ` Rafael J. Wysocki
2023-11-30 16:49 ` Jonathan Cameron
2023-11-30 16:49 ` Jonathan Cameron
2023-11-30 16:49 ` Jonathan Cameron
2023-11-21 13:44 ` [PATCH 06/21] drivers: base: Use present CPUs in GENERIC_CPU_DEVICES Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` [PATCH 07/21] drivers: base: Allow parts of GENERIC_CPU_DEVICES to be overridden Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-30 16:50 ` Jonathan Cameron
2023-11-30 16:50 ` Jonathan Cameron
2023-11-30 16:50 ` Jonathan Cameron
2023-11-21 13:44 ` [PATCH 08/21] drivers: base: Implement weak arch_unregister_cpu() Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-30 16:50 ` Jonathan Cameron
2023-11-30 16:50 ` Jonathan Cameron
2023-11-30 16:50 ` Jonathan Cameron
2023-12-01 3:47 ` Gavin Shan
2023-12-01 3:47 ` Gavin Shan
2023-12-01 3:47 ` Gavin Shan
2023-12-01 11:06 ` Thomas Gleixner
2023-12-01 11:06 ` Thomas Gleixner
2023-12-01 11:06 ` Thomas Gleixner
2023-11-21 13:44 ` [PATCH 09/21] drivers: base: add arch_cpu_is_hotpluggable() Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-30 16:51 ` Jonathan Cameron
2023-11-30 16:51 ` Jonathan Cameron
2023-11-30 16:51 ` Jonathan Cameron
2023-12-01 3:47 ` Gavin Shan
2023-12-01 3:47 ` Gavin Shan
2023-12-01 3:47 ` Gavin Shan
2023-11-21 13:44 ` [PATCH 10/21] drivers: base: Move cpu_dev_init() after node_dev_init() Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-30 16:52 ` Jonathan Cameron
2023-11-30 16:52 ` Jonathan Cameron
2023-11-30 16:52 ` Jonathan Cameron
2023-12-01 3:48 ` Gavin Shan
2023-12-01 3:48 ` Gavin Shan
2023-12-01 3:48 ` Gavin Shan
2023-11-21 13:44 ` [PATCH 11/21] drivers: base: Print a warning instead of panic() when register_cpu() fails Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-30 16:53 ` Jonathan Cameron
2023-11-30 16:53 ` Jonathan Cameron
2023-11-30 16:53 ` Jonathan Cameron
2023-12-01 3:49 ` Gavin Shan
2023-12-01 3:49 ` Gavin Shan
2023-12-01 3:49 ` Gavin Shan
2023-11-21 13:44 ` [PATCH 12/21] arm64: setup: Switch over to GENERIC_CPU_DEVICES using arch_register_cpu() Russell King
2023-11-21 13:44 ` Russell King
2023-11-21 13:44 ` Russell King
2023-11-30 16:54 ` Jonathan Cameron
2023-11-30 16:54 ` Jonathan Cameron
2023-11-30 16:54 ` Jonathan Cameron
2023-12-11 13:20 ` Will Deacon
2023-12-11 13:20 ` Will Deacon
2023-12-11 13:20 ` Will Deacon
2023-11-21 13:44 ` [PATCH 13/21] arm64: convert to arch_cpu_is_hotpluggable() Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-21 13:44 ` Russell King (Oracle)
2023-11-30 16:54 ` Jonathan Cameron
2023-11-30 16:54 ` Jonathan Cameron
2023-11-30 16:54 ` Jonathan Cameron
2023-12-11 13:21 ` Will Deacon
2023-12-11 13:21 ` Will Deacon
2023-12-11 13:21 ` Will Deacon
2023-11-21 13:45 ` [PATCH 14/21] x86/topology: Switch over to GENERIC_CPU_DEVICES Russell King
2023-11-21 13:45 ` Russell King
2023-11-21 13:45 ` Russell King
2023-11-30 16:56 ` Jonathan Cameron [this message]
2023-11-30 16:56 ` Jonathan Cameron
2023-11-30 16:56 ` Jonathan Cameron
2023-11-21 13:45 ` [PATCH 15/21] x86/topology: use weak version of arch_unregister_cpu() Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-30 16:57 ` Jonathan Cameron
2023-11-30 16:57 ` Jonathan Cameron
2023-11-30 16:57 ` Jonathan Cameron
2023-11-21 13:45 ` [PATCH 16/21] x86/topology: convert to use arch_cpu_is_hotpluggable() Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-11-21 13:45 ` [PATCH 17/21] LoongArch: Switch over to GENERIC_CPU_DEVICES Russell King
2023-11-21 13:45 ` Russell King
2023-11-21 13:45 ` Russell King
2023-11-30 16:57 ` Jonathan Cameron
2023-11-30 16:57 ` Jonathan Cameron
2023-11-30 16:57 ` Jonathan Cameron
2023-11-21 13:45 ` [PATCH 18/21] LoongArch: Use the __weak version of arch_unregister_cpu() Russell King
2023-11-21 13:45 ` Russell King
2023-11-21 13:45 ` Russell King
2023-11-21 13:45 ` [PATCH 19/21] LoongArch: convert to use arch_cpu_is_hotpluggable() Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-11-21 13:45 ` [PATCH 20/21] riscv: Switch over to GENERIC_CPU_DEVICES Russell King
2023-11-21 13:45 ` Russell King
2023-11-21 13:45 ` Russell King
2023-11-22 20:05 ` Samuel Holland
2023-11-22 20:05 ` Samuel Holland
2023-11-22 20:05 ` Samuel Holland
2023-11-21 13:45 ` [PATCH 21/21] riscv: convert to use arch_cpu_is_hotpluggable() Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-21 13:45 ` Russell King (Oracle)
2023-11-22 20:08 ` Samuel Holland
2023-11-22 20:08 ` Samuel Holland
2023-11-22 20:08 ` Samuel Holland
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-11-30 16:55 ` Jonathan Cameron
2023-12-01 8:53 ` [PATCH 00/21] Initial cleanups for vCPU hotplug Thomas Gleixner
2023-12-01 8:53 ` Thomas Gleixner
2023-12-01 8:53 ` Thomas Gleixner
2023-12-01 11:25 ` Thomas Gleixner
2023-12-01 11:25 ` Thomas Gleixner
2023-12-01 11:25 ` Thomas Gleixner
2023-12-01 12:28 ` Greg Kroah-Hartman
2023-12-01 12:28 ` Greg Kroah-Hartman
2023-12-01 12:28 ` Greg Kroah-Hartman
2023-12-01 16:09 ` Thomas Gleixner
2023-12-01 16:09 ` Thomas Gleixner
2023-12-01 16:09 ` Thomas Gleixner
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