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:     Andi Kleen <ak@linux.intel.com>,
        Stephane Eranian <eranian@google.com>,
        "Ravi V. Shankar" <ravi.v.shankar@intel.com>,
        Ricardo Neri <ricardo.neri@intel.com>,
        linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org,
        Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Subject: [PATCH v7 12/24] x86/hpet: Expose hpet_writel() in header
Date:   Wed,  1 Mar 2023 15:47:41 -0800
Message-Id: <20230301234753.28582-13-ricardo.neri-calderon@linux.intel.com>
In-Reply-To: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com>
References: <20230301234753.28582-1-ricardo.neri-calderon@linux.intel.com>
Precedence: bulk

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