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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 12/24] x86/hpet: Expose hpet_writel() in header
Date: Wed,  1 Mar 2023 15:47:41 -0800	[thread overview]
Message-ID: <20230301234753.28582-13-ricardo.neri-calderon@linux.intel.com> (raw)
In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com>

In order to allow hpet_writel() to be used by other components (e.g.,
the HPET-based hardlockup detector), expose it in the HPET header file.

Cc: Andi Kleen <ak@linux.intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-dev@lists.ozlabs.org
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:
 * None

Changes since v4:
 * Dropped exposing hpet_readq() as it is not needed.

Changes since v3:
 * None

Changes since v2:
 * None

Changes since v1:
 * None
---
 arch/x86/include/asm/hpet.h | 1 +
 arch/x86/kernel/hpet.c      | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index ab9f3dd87c80..be9848f0883f 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -72,6 +72,7 @@ extern int is_hpet_enabled(void);
 extern int hpet_enable(void);
 extern void hpet_disable(void);
 extern unsigned int hpet_readl(unsigned int a);
+extern void hpet_writel(unsigned int d, unsigned int a);
 extern void force_hpet_resume(void);
 
 #ifdef CONFIG_HPET_EMULATE_RTC
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c8eb1ac5125a..8303fb1b63a9 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -79,7 +79,7 @@ inline unsigned int hpet_readl(unsigned int a)
 	return readl(hpet_virt_address + a);
 }
 
-static inline void hpet_writel(unsigned int d, unsigned int a)
+inline void hpet_writel(unsigned int d, unsigned int a)
 {
 	writel(d, hpet_virt_address + a);
 }
-- 
2.25.1


  parent reply	other threads:[~2023-03-01 23:50 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 ` [PATCH v7 03/24] x86/apic: Add the X86_IRQ_ALLOC_AS_NMI interrupt allocation flag Ricardo Neri
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 ` Ricardo Neri [this message]
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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