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From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To: Tony Luck <tony.luck@intel.com>,
	Dave Hansen <dave.hansen@intel.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Reinette Chatre <reinette.chatre@intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Len Brown <len.brown@intel.com>
Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	Ricardo Neri <ricardo.neri-calderon@linux.intel.com>,
	Ricardo Neri <ricardo.neri@intel.com>,
	Stephane Eranian <eranian@google.com>,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v7 03/24] x86/apic: Add the X86_IRQ_ALLOC_AS_NMI interrupt allocation flag
Date: Wed,  1 Mar 2023 15:47:32 -0800	[thread overview]
Message-ID: <20230301234753.28582-4-ricardo.neri-calderon@linux.intel.com> (raw)
In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com>

There are cases in which it is necessary to set the delivery mode of an
interrupt as NMI. Add a new flag that callers can specify when allocating
an interrupt.

Cc: Andi Kleen <ak@linux.intel.com>
Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-dev@lists.ozlabs.org
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
---
Changes since v6:
 * None

Changes since v5:
 * Introduced this patch.

Changes since v4:
 * N/A

Changes since v3:
 * N/A

Changes since v2:
 * N/A

Changes since v1:
 * N/A
---
 arch/x86/include/asm/irqdomain.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/irqdomain.h b/arch/x86/include/asm/irqdomain.h
index 30c325c235c0..e13f02c6fe95 100644
--- a/arch/x86/include/asm/irqdomain.h
+++ b/arch/x86/include/asm/irqdomain.h
@@ -8,6 +8,7 @@
 #ifdef CONFIG_X86_LOCAL_APIC
 enum {
 	X86_IRQ_ALLOC_LEGACY				= 0x1,
+	X86_IRQ_ALLOC_AS_NMI				= 0x2,
 };
 
 extern int x86_fwspec_is_ioapic(struct irq_fwspec *fwspec);
-- 
2.25.1


  parent reply	other threads:[~2023-03-01 23:40 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-01 23:47 [PATCH v7 00/24] x86: Implement an HPET-based hardlockup detector Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 01/24] x86/apic: Add irq_cfg::delivery_mode Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 02/24] x86/apic/msi: Use the delivery mode from irq_cfg for message composition Ricardo Neri
2023-03-01 23:47 ` Ricardo Neri [this message]
2023-03-01 23:47 ` [PATCH v7 04/24] x86/apic/vector: Implement a local APIC NMI controller Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 05/24] x86/apic/vector: Skip cleanup for the NMI vector Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 06/24] iommu/vt-d: Clear the redirection hint when the destination mode is physical Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 07/24] iommu/vt-d: Rework prepare_irte() to support per-interrupt delivery mode Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 08/24] iommu/vt-d: Set the IRTE delivery mode individually for each interrupt Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 09/24] iommu/amd: Expose [set|get]_dev_entry_bit() Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 10/24] iommu/amd: Enable NMIPass when allocating an NMI Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 11/24] iommu/amd: Compose MSI messages for NMIs in non-IR format Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 12/24] x86/hpet: Expose hpet_writel() in header Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 13/24] x86/hpet: Add helper function hpet_set_comparator_periodic() Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 14/24] x86/hpet: Prepare IRQ assignments to use the X86_ALLOC_AS_NMI flag Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 15/24] x86/hpet: Reserve an HPET channel for the hardlockup detector Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 16/24] watchdog/hardlockup: Define a generic function to detect hardlockups Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 17/24] watchdog/hardlockup: Decouple the hardlockup detector from perf Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 18/24] init/main: Delay initialization of the lockup detector after smp_init() Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 19/24] x86/watchdog/hardlockup: Add an HPET-based hardlockup detector Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 20/24] x86/watchdog/hardlockup/hpet: Determine if HPET timer caused NMI Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 21/24] watchdog/hardlockup/hpet: Only enable the HPET watchdog via a boot parameter Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 22/24] x86/watchdog: Add a shim hardlockup detector Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 23/24] watchdog: Introduce hardlockup_detector_mark_unavailable() Ricardo Neri
2023-03-01 23:47 ` [PATCH v7 24/24] x86/tsc: Stop the HPET hardlockup detector if TSC become unstable Ricardo Neri
2023-04-13  3:58 ` [PATCH v7 00/24] x86: Implement an HPET-based hardlockup detector Ricardo Neri

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