From: James Morse <james.morse@arm.com>
To: 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
Cc: x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
Russell King <linux@armlinux.org.uk>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
jianyong.wu@arm.com, justin.he@arm.com
Subject: [RFC PATCH v2 18/35] ACPI: Rename ACPI_HOTPLUG_CPU to include 'present'
Date: Wed, 13 Sep 2023 16:38:06 +0000 [thread overview]
Message-ID: <20230913163823.7880-19-james.morse@arm.com> (raw)
In-Reply-To: <20230913163823.7880-1-james.morse@arm.com>
The code behind ACPI_HOTPLUG_CPU allows a not-present CPU to become
present. This isn't the only use of HOTPLUG_CPU. On arm64 and riscv
CPUs can be taken offline as a power saving measure.
On arm64 an offline CPU may be disabled by firmware, preventing it from
being brought back online, but it remains present throughout.
Adding code to prevent user-space trying to online these disabled CPUs
needs some additional terminology.
Rename the Kconfig symbol CONFIG_ACPI_HOTPLUG_PRESENT_CPU to reflect
that it makes possible CPUs present.
HOTPLUG_CPU is untouched as this is only about the ACPI mechanism.
Signed-off-by: James Morse <james.morse@arm.com>
---
arch/ia64/Kconfig | 2 +-
arch/ia64/include/asm/acpi.h | 2 +-
arch/ia64/kernel/acpi.c | 6 +++---
arch/ia64/kernel/setup.c | 2 +-
arch/loongarch/configs/loongson3_defconfig | 2 +-
arch/loongarch/kernel/acpi.c | 4 ++--
arch/x86/Kconfig | 2 +-
arch/x86/kernel/acpi/boot.c | 4 ++--
drivers/acpi/Kconfig | 4 ++--
drivers/acpi/acpi_processor.c | 10 +++++-----
include/acpi/processor.h | 2 +-
include/linux/acpi.h | 6 +++---
12 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index a3bfd42467ab..54972f9fe804 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -16,7 +16,7 @@ config IA64
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_NUMA if NUMA
select ARCH_ENABLE_MEMORY_HOTPLUG
select ARCH_ENABLE_MEMORY_HOTREMOVE
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 58500a964238..482ea994d1e1 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -52,7 +52,7 @@ extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 15f6cfddcc08..35881bf4b016 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -194,7 +194,7 @@ acpi_parse_plat_int_src(union acpi_subtable_headers * header,
return 0;
}
-#ifdef CONFIG_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
unsigned int can_cpei_retarget(void)
{
extern int cpe_vector;
@@ -711,7 +711,7 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
/*
* ACPI based hotplug CPU support
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
@@ -820,7 +820,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_NUMA
static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 5a55ac82c13a..44591716d07b 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -569,7 +569,7 @@ setup_arch (char **cmdline_p)
#ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
acpi_numa_fixup();
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
prefill_possible_map();
#endif
per_cpu_scan_finalize((cpumask_empty(&early_cpu_possible_map) ?
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index a3b52aaa83b3..ef3bc76313e4 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -59,7 +59,7 @@ CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_TAD=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_IPMI=m
-CONFIG_ACPI_HOTPLUG_CPU=y
+CONFIG_ACPI_HOTPLUG_PRESENT_CPU=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_EFI_ZBOOT=y
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 9450e09073eb..b5153e395ad9 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -289,7 +289,7 @@ void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)
memblock_reserve(addr, size);
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
@@ -341,4 +341,4 @@ int acpi_unmap_cpu(int cpu)
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 133ea5f561b5..295a7a3debb6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -60,7 +60,7 @@ config X86
#
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ARCH_32BIT_OFF_T if X86_32
select ARCH_CLOCKSOURCE_INIT
select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2a0ea38955df..84dd4133754b 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -814,7 +814,7 @@ static void __init acpi_set_irq_model_ioapic(void)
/*
* ACPI based hotplug support for CPU
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
@@ -863,7 +863,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 8456d48ba702..417f9f3077d2 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -305,7 +305,7 @@ config ACPI_IPMI
To compile this driver as a module, choose M here:
the module will be called as acpi_ipmi.
-config ACPI_HOTPLUG_CPU
+config ACPI_HOTPLUG_PRESENT_CPU
bool
depends on ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_CONTAINER
@@ -399,7 +399,7 @@ config ACPI_PCI_SLOT
config ACPI_CONTAINER
bool "Container and Module Devices"
- default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
+ default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_PRESENT_CPU)
help
This driver supports ACPI Container and Module devices (IDs
ACPI0004, PNP0A05, and PNP0A06).
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 867782bc50b0..75257fae10e7 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -182,7 +182,7 @@ static void __init acpi_pcc_cpufreq_init(void) {}
#endif /* CONFIG_X86 */
/* Initialization */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
static int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
unsigned long long sta;
@@ -227,7 +227,7 @@ static inline int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
return -ENODEV;
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
static int acpi_processor_get_info(struct acpi_device *device)
{
@@ -461,7 +461,7 @@ static int acpi_processor_add(struct acpi_device *device,
return result;
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Removal */
static void acpi_processor_remove(struct acpi_device *device)
{
@@ -505,7 +505,7 @@ static void acpi_processor_remove(struct acpi_device *device)
free_cpumask_var(pr->throttling.shared_cpu_map);
kfree(pr);
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
bool __init processor_physically_present(acpi_handle handle)
@@ -630,7 +630,7 @@ static const struct acpi_device_id processor_device_ids[] = {
static struct acpi_scan_handler processor_handler = {
.ids = processor_device_ids,
.attach = acpi_processor_add,
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
.detach = acpi_processor_remove,
#endif
.hotplug = {
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 94181fe9780a..fd6913370c72 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -465,7 +465,7 @@ extern int acpi_processor_ffh_lpi_probe(unsigned int cpu);
extern int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi);
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#endif
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a73246c3c35e..651dd43976a9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -316,12 +316,12 @@ static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
}
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Arch dependent functions for cpu hotplug support */
int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
int *pcpu);
int acpi_unmap_cpu(int cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
@@ -644,7 +644,7 @@ static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
/* Enable _OST when all relevant hotplug operations are enabled */
-#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
+#if defined(CONFIG_ACPI_HOTPLUG_PRESENT_CPU) && \
defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
defined(CONFIG_ACPI_CONTAINER)
#define ACPI_HOTPLUG_OST
--
2.39.2
WARNING: multiple messages have this Message-ID (diff)
From: James Morse <james.morse@arm.com>
To: 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
Cc: x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
Russell King <linux@armlinux.org.uk>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
jianyong.wu@arm.com, justin.he@arm.com
Subject: [RFC PATCH v2 18/35] ACPI: Rename ACPI_HOTPLUG_CPU to include 'present'
Date: Wed, 13 Sep 2023 16:38:06 +0000 [thread overview]
Message-ID: <20230913163823.7880-19-james.morse@arm.com> (raw)
In-Reply-To: <20230913163823.7880-1-james.morse@arm.com>
The code behind ACPI_HOTPLUG_CPU allows a not-present CPU to become
present. This isn't the only use of HOTPLUG_CPU. On arm64 and riscv
CPUs can be taken offline as a power saving measure.
On arm64 an offline CPU may be disabled by firmware, preventing it from
being brought back online, but it remains present throughout.
Adding code to prevent user-space trying to online these disabled CPUs
needs some additional terminology.
Rename the Kconfig symbol CONFIG_ACPI_HOTPLUG_PRESENT_CPU to reflect
that it makes possible CPUs present.
HOTPLUG_CPU is untouched as this is only about the ACPI mechanism.
Signed-off-by: James Morse <james.morse@arm.com>
---
arch/ia64/Kconfig | 2 +-
arch/ia64/include/asm/acpi.h | 2 +-
arch/ia64/kernel/acpi.c | 6 +++---
arch/ia64/kernel/setup.c | 2 +-
arch/loongarch/configs/loongson3_defconfig | 2 +-
arch/loongarch/kernel/acpi.c | 4 ++--
arch/x86/Kconfig | 2 +-
arch/x86/kernel/acpi/boot.c | 4 ++--
drivers/acpi/Kconfig | 4 ++--
drivers/acpi/acpi_processor.c | 10 +++++-----
include/acpi/processor.h | 2 +-
include/linux/acpi.h | 6 +++---
12 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index a3bfd42467ab..54972f9fe804 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -16,7 +16,7 @@ config IA64
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_NUMA if NUMA
select ARCH_ENABLE_MEMORY_HOTPLUG
select ARCH_ENABLE_MEMORY_HOTREMOVE
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 58500a964238..482ea994d1e1 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -52,7 +52,7 @@ extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 15f6cfddcc08..35881bf4b016 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -194,7 +194,7 @@ acpi_parse_plat_int_src(union acpi_subtable_headers * header,
return 0;
}
-#ifdef CONFIG_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
unsigned int can_cpei_retarget(void)
{
extern int cpe_vector;
@@ -711,7 +711,7 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
/*
* ACPI based hotplug CPU support
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
@@ -820,7 +820,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_NUMA
static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 5a55ac82c13a..44591716d07b 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -569,7 +569,7 @@ setup_arch (char **cmdline_p)
#ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
acpi_numa_fixup();
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
prefill_possible_map();
#endif
per_cpu_scan_finalize((cpumask_empty(&early_cpu_possible_map) ?
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index a3b52aaa83b3..ef3bc76313e4 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -59,7 +59,7 @@ CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_TAD=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_IPMI=m
-CONFIG_ACPI_HOTPLUG_CPU=y
+CONFIG_ACPI_HOTPLUG_PRESENT_CPU=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_EFI_ZBOOT=y
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 9450e09073eb..b5153e395ad9 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -289,7 +289,7 @@ void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)
memblock_reserve(addr, size);
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
@@ -341,4 +341,4 @@ int acpi_unmap_cpu(int cpu)
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 133ea5f561b5..295a7a3debb6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -60,7 +60,7 @@ config X86
#
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ARCH_32BIT_OFF_T if X86_32
select ARCH_CLOCKSOURCE_INIT
select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2a0ea38955df..84dd4133754b 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -814,7 +814,7 @@ static void __init acpi_set_irq_model_ioapic(void)
/*
* ACPI based hotplug support for CPU
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
@@ -863,7 +863,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 8456d48ba702..417f9f3077d2 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -305,7 +305,7 @@ config ACPI_IPMI
To compile this driver as a module, choose M here:
the module will be called as acpi_ipmi.
-config ACPI_HOTPLUG_CPU
+config ACPI_HOTPLUG_PRESENT_CPU
bool
depends on ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_CONTAINER
@@ -399,7 +399,7 @@ config ACPI_PCI_SLOT
config ACPI_CONTAINER
bool "Container and Module Devices"
- default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
+ default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_PRESENT_CPU)
help
This driver supports ACPI Container and Module devices (IDs
ACPI0004, PNP0A05, and PNP0A06).
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 867782bc50b0..75257fae10e7 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -182,7 +182,7 @@ static void __init acpi_pcc_cpufreq_init(void) {}
#endif /* CONFIG_X86 */
/* Initialization */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
static int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
unsigned long long sta;
@@ -227,7 +227,7 @@ static inline int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
return -ENODEV;
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
static int acpi_processor_get_info(struct acpi_device *device)
{
@@ -461,7 +461,7 @@ static int acpi_processor_add(struct acpi_device *device,
return result;
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Removal */
static void acpi_processor_remove(struct acpi_device *device)
{
@@ -505,7 +505,7 @@ static void acpi_processor_remove(struct acpi_device *device)
free_cpumask_var(pr->throttling.shared_cpu_map);
kfree(pr);
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
bool __init processor_physically_present(acpi_handle handle)
@@ -630,7 +630,7 @@ static const struct acpi_device_id processor_device_ids[] = {
static struct acpi_scan_handler processor_handler = {
.ids = processor_device_ids,
.attach = acpi_processor_add,
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
.detach = acpi_processor_remove,
#endif
.hotplug = {
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 94181fe9780a..fd6913370c72 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -465,7 +465,7 @@ extern int acpi_processor_ffh_lpi_probe(unsigned int cpu);
extern int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi);
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#endif
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a73246c3c35e..651dd43976a9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -316,12 +316,12 @@ static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
}
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Arch dependent functions for cpu hotplug support */
int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
int *pcpu);
int acpi_unmap_cpu(int cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
@@ -644,7 +644,7 @@ static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
/* Enable _OST when all relevant hotplug operations are enabled */
-#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
+#if defined(CONFIG_ACPI_HOTPLUG_PRESENT_CPU) && \
defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
defined(CONFIG_ACPI_CONTAINER)
#define ACPI_HOTPLUG_OST
--
2.39.2
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WARNING: multiple messages have this Message-ID (diff)
From: James Morse <james.morse@arm.com>
To: 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
Cc: x86@kernel.org, Salil Mehta <salil.mehta@huawei.com>,
Russell King <linux@armlinux.org.uk>,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
jianyong.wu@arm.com, justin.he@arm.com
Subject: [RFC PATCH v2 18/35] ACPI: Rename ACPI_HOTPLUG_CPU to include 'present'
Date: Wed, 13 Sep 2023 16:38:06 +0000 [thread overview]
Message-ID: <20230913163823.7880-19-james.morse@arm.com> (raw)
In-Reply-To: <20230913163823.7880-1-james.morse@arm.com>
The code behind ACPI_HOTPLUG_CPU allows a not-present CPU to become
present. This isn't the only use of HOTPLUG_CPU. On arm64 and riscv
CPUs can be taken offline as a power saving measure.
On arm64 an offline CPU may be disabled by firmware, preventing it from
being brought back online, but it remains present throughout.
Adding code to prevent user-space trying to online these disabled CPUs
needs some additional terminology.
Rename the Kconfig symbol CONFIG_ACPI_HOTPLUG_PRESENT_CPU to reflect
that it makes possible CPUs present.
HOTPLUG_CPU is untouched as this is only about the ACPI mechanism.
Signed-off-by: James Morse <james.morse@arm.com>
---
arch/ia64/Kconfig | 2 +-
arch/ia64/include/asm/acpi.h | 2 +-
arch/ia64/kernel/acpi.c | 6 +++---
arch/ia64/kernel/setup.c | 2 +-
arch/loongarch/configs/loongson3_defconfig | 2 +-
arch/loongarch/kernel/acpi.c | 4 ++--
arch/x86/Kconfig | 2 +-
arch/x86/kernel/acpi/boot.c | 4 ++--
drivers/acpi/Kconfig | 4 ++--
drivers/acpi/acpi_processor.c | 10 +++++-----
include/acpi/processor.h | 2 +-
include/linux/acpi.h | 6 +++---
12 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index a3bfd42467ab..54972f9fe804 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -16,7 +16,7 @@ config IA64
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_NUMA if NUMA
select ARCH_ENABLE_MEMORY_HOTPLUG
select ARCH_ENABLE_MEMORY_HOTREMOVE
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 58500a964238..482ea994d1e1 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -52,7 +52,7 @@ extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 15f6cfddcc08..35881bf4b016 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -194,7 +194,7 @@ acpi_parse_plat_int_src(union acpi_subtable_headers * header,
return 0;
}
-#ifdef CONFIG_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
unsigned int can_cpei_retarget(void)
{
extern int cpe_vector;
@@ -711,7 +711,7 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
/*
* ACPI based hotplug CPU support
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
@@ -820,7 +820,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_NUMA
static acpi_status acpi_map_iosapic(acpi_handle handle, u32 depth,
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 5a55ac82c13a..44591716d07b 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -569,7 +569,7 @@ setup_arch (char **cmdline_p)
#ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
acpi_numa_fixup();
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
prefill_possible_map();
#endif
per_cpu_scan_finalize((cpumask_empty(&early_cpu_possible_map) ?
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index a3b52aaa83b3..ef3bc76313e4 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -59,7 +59,7 @@ CONFIG_ACPI_SPCR_TABLE=y
CONFIG_ACPI_TAD=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_IPMI=m
-CONFIG_ACPI_HOTPLUG_CPU=y
+CONFIG_ACPI_HOTPLUG_PRESENT_CPU=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_EFI_ZBOOT=y
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 9450e09073eb..b5153e395ad9 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -289,7 +289,7 @@ void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)
memblock_reserve(addr, size);
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
@@ -341,4 +341,4 @@ int acpi_unmap_cpu(int cpu)
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 133ea5f561b5..295a7a3debb6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -60,7 +60,7 @@ config X86
#
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
- select ACPI_HOTPLUG_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
+ select ACPI_HOTPLUG_PRESENT_CPU if ACPI_PROCESSOR && HOTPLUG_CPU
select ARCH_32BIT_OFF_T if X86_32
select ARCH_CLOCKSOURCE_INIT
select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2a0ea38955df..84dd4133754b 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -814,7 +814,7 @@ static void __init acpi_set_irq_model_ioapic(void)
/*
* ACPI based hotplug support for CPU
*/
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
#include <acpi/processor.h>
static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
@@ -863,7 +863,7 @@ int acpi_unmap_cpu(int cpu)
return (0);
}
EXPORT_SYMBOL(acpi_unmap_cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 8456d48ba702..417f9f3077d2 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -305,7 +305,7 @@ config ACPI_IPMI
To compile this driver as a module, choose M here:
the module will be called as acpi_ipmi.
-config ACPI_HOTPLUG_CPU
+config ACPI_HOTPLUG_PRESENT_CPU
bool
depends on ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_CONTAINER
@@ -399,7 +399,7 @@ config ACPI_PCI_SLOT
config ACPI_CONTAINER
bool "Container and Module Devices"
- default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
+ default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_PRESENT_CPU)
help
This driver supports ACPI Container and Module devices (IDs
ACPI0004, PNP0A05, and PNP0A06).
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 867782bc50b0..75257fae10e7 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -182,7 +182,7 @@ static void __init acpi_pcc_cpufreq_init(void) {}
#endif /* CONFIG_X86 */
/* Initialization */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
static int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
unsigned long long sta;
@@ -227,7 +227,7 @@ static inline int acpi_processor_hotadd_init(struct acpi_processor *pr)
{
return -ENODEV;
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
static int acpi_processor_get_info(struct acpi_device *device)
{
@@ -461,7 +461,7 @@ static int acpi_processor_add(struct acpi_device *device,
return result;
}
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Removal */
static void acpi_processor_remove(struct acpi_device *device)
{
@@ -505,7 +505,7 @@ static void acpi_processor_remove(struct acpi_device *device)
free_cpumask_var(pr->throttling.shared_cpu_map);
kfree(pr);
}
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
bool __init processor_physically_present(acpi_handle handle)
@@ -630,7 +630,7 @@ static const struct acpi_device_id processor_device_ids[] = {
static struct acpi_scan_handler processor_handler = {
.ids = processor_device_ids,
.attach = acpi_processor_add,
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
.detach = acpi_processor_remove,
#endif
.hotplug = {
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 94181fe9780a..fd6913370c72 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -465,7 +465,7 @@ extern int acpi_processor_ffh_lpi_probe(unsigned int cpu);
extern int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi);
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#endif
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a73246c3c35e..651dd43976a9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -316,12 +316,12 @@ static inline int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
}
#endif
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#ifdef CONFIG_ACPI_HOTPLUG_PRESENT_CPU
/* Arch dependent functions for cpu hotplug support */
int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
int *pcpu);
int acpi_unmap_cpu(int cpu);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif /* CONFIG_ACPI_HOTPLUG_PRESENT_CPU */
#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
@@ -644,7 +644,7 @@ static inline u32 acpi_osc_ctx_get_cxl_control(struct acpi_osc_context *context)
#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
/* Enable _OST when all relevant hotplug operations are enabled */
-#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
+#if defined(CONFIG_ACPI_HOTPLUG_PRESENT_CPU) && \
defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
defined(CONFIG_ACPI_CONTAINER)
#define ACPI_HOTPLUG_OST
--
2.39.2
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next prev parent reply other threads:[~2023-09-13 16:39 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)
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 ` James Morse [this message]
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
2023-09-18 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
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