[RFC PATCH 23/32] ACPICA: Add new MADT GICC flags fields [code first?]
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- Subject: [RFC PATCH 23/32] ACPICA: Add new MADT GICC flags fields [code first?]
- From: James Morse <james.morse@xxxxxxx>
- Date: Fri, 3 Feb 2023 13:50:34 +0000
- Cc: Marc Zyngier <maz@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Sudeep Holla <sudeep.holla@xxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, H Peter Anvin <hpa@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Huacai Chen <chenhuacai@xxxxxxxxxx>, James Morse <james.morse@xxxxxxx>, Suzuki K Poulose <suzuki.poulose@xxxxxxx>, Oliver Upton <oliver.upton@xxxxxxxxx>, Len Brown <lenb@xxxxxxxxxx>, Rafael Wysocki <rafael@xxxxxxxxxx>, WANG Xuerui <kernel@xxxxxxxxxx>, Salil Mehta <salil.mehta@xxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
- In-reply-to: <20230203135043.409192-1-james.morse@arm.com>
- References: <20230203135043.409192-1-james.morse@arm.com>
Add the new flag field to the MADT's GICC structure.
'Online Capable' indicates a disabled CPU can be enabled later.
Signed-off-by: James Morse <james.morse@xxxxxxx>
---
This patch probably needs to go via the upstream acpica project,
but is included here so the feature can be tested.
---
include/acpi/actbl2.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index b2973dbe37ee..9b1c15c56db3 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -1040,6 +1040,7 @@ struct acpi_madt_generic_interrupt {
/* ACPI_MADT_ENABLED (1) Processor is usable if set */
#define ACPI_MADT_PERFORMANCE_IRQ_MODE (1<<1) /* 01: Performance Interrupt Mode */
#define ACPI_MADT_VGIC_IRQ_MODE (1<<2) /* 02: VGIC Maintenance Interrupt mode */
+#define ACPI_MADT_GICC_CPU_CAPABLE (1<<3) /* 03: CPU is online capable */
/* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */
--
2.30.2
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