From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Date: Fri, 30 Oct 2020 15:17:52 +0000 Subject: [PATCH v2 09/15] m68k: split heartbeat out of timer function Message-Id: <20201030151758.1241164-10-arnd@kernel.org> List-Id: References: <20201030151758.1241164-1-arnd@kernel.org> In-Reply-To: <20201030151758.1241164-1-arnd@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Arnd Bergmann , Russell King , Tony Luck , Fenghua Yu , Greg Ungerer , Finn Thain , Philip Blundell , Joshua Thompson , Sam Creasey , "James E.J. Bottomley" , Helge Deller , Daniel Lezcano , John Stultz , Stephen Boyd , Linus Walleij , linux-ia64@vger.kernel.org, Parisc List , linux-m68k , Linux ARM , Geert Uytterhoeven From: Arnd Bergmann The heartbeat functionality is mostly separate from the actual timer interrupt handling, and it is only used on five platforms. Split it out into a separate function and call that directly from the timer irq on those platforms. Reviewed-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Reviewed-by: Linus Walleij Signed-off-by: Arnd Bergmann --- arch/m68k/amiga/config.c | 1 + arch/m68k/apollo/config.c | 1 + arch/m68k/atari/time.c | 2 ++ arch/m68k/hp300/time.c | 1 + arch/m68k/include/asm/machdep.h | 7 +++++++ arch/m68k/kernel/time.c | 7 +++++-- arch/m68k/q40/q40ints.c | 2 ++ 7 files changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index bee9f240f35d..29f92333119e 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -480,6 +480,7 @@ static irqreturn_t ciab_timer_handler(int irq, void *dev_id) clk_total += jiffy_ticks; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); return IRQ_HANDLED; } diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c index 762da5d7a415..30915f1a8760 100644 --- a/arch/m68k/apollo/config.c +++ b/arch/m68k/apollo/config.c @@ -173,6 +173,7 @@ irqreturn_t dn_timer_int(int irq, void *dev_id) volatile unsigned char x; timer_handler(irq, dev_id); + timer_heartbeat(); x = *(volatile unsigned char *)(apollo_timer + 3); x = *(volatile unsigned char *)(apollo_timer + 5); diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c index ce923a523695..ce4a5961ca93 100644 --- a/arch/m68k/atari/time.c +++ b/arch/m68k/atari/time.c @@ -21,6 +21,7 @@ #include #include +#include DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL_GPL(rtc_lock); @@ -49,6 +50,7 @@ static irqreturn_t mfp_timer_c_handler(int irq, void *dev_id) } while (last_timer_count = 1); clk_total += INT_TICKS; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); return IRQ_HANDLED; diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c index bfee13e1d0fe..e3cd938de0f9 100644 --- a/arch/m68k/hp300/time.c +++ b/arch/m68k/hp300/time.c @@ -65,6 +65,7 @@ static irqreturn_t hp300_tick(int irq, void *dev_id) clk_total += INTVAL; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); /* Turn off the network and SCSI leds */ diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h index 49bd3266b4b1..e62a39d01ae4 100644 --- a/arch/m68k/include/asm/machdep.h +++ b/arch/m68k/include/asm/machdep.h @@ -35,6 +35,13 @@ extern void (*mach_beep) (unsigned int, unsigned int); /* Hardware clock functions */ extern void hw_timer_init(irq_handler_t handler); extern unsigned long hw_timer_offset(void); +#ifdef CONFIG_HEARTBEAT +extern void timer_heartbeat(void); +#else +static inline void timer_heartbeat(void) +{ +} +#endif extern void config_BSP(char *command, int len); diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index c2697a4d4ddd..c05cec21b05f 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -45,8 +45,12 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) xtime_update(1); update_process_times(user_mode(get_irq_regs())); profile_tick(CPU_PROFILING); + return IRQ_HANDLED; +} #ifdef CONFIG_HEARTBEAT +void timer_heartbeat(void) +{ /* use power LED as a heartbeat instead -- much more useful for debugging -- based on the version for PReP by Cort */ /* acts like an actual heart beat -- ie thump-thump-pause... */ @@ -68,9 +72,8 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) dist = period / 4; } } -#endif /* CONFIG_HEARTBEAT */ - return IRQ_HANDLED; } +#endif /* CONFIG_HEARTBEAT */ #ifdef CONFIG_M68KCLASSIC #if !IS_BUILTIN(CONFIG_RTC_DRV_GENERIC) diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index 1c696906c159..b01b545a2db0 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -17,6 +17,7 @@ #include #include +#include #include #include @@ -144,6 +145,7 @@ static irqreturn_t q40_timer_int(int irq, void *dev_id) local_irq_save(flags); timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); } return IRQ_HANDLED; -- 2.27.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF451C56202 for ; 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Fri, 30 Oct 2020 15:18:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604071140; bh=1U0ECVqd2hNgqIJBzCiaE0G3Htac28AHKdGuEc6XP0Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mYdsPP8cT4riayqUCnHMvcpTSpOrhi3YSE4t0JqeIOcSvOMDaPTkYggDnUgQb2faP h/CoXoTiH3Ok9f0NYQ9R/g3i6G1WgP0MSYZIfi+kiBxsYesZvCwAAJs1uQN9fFAKGG SuIrZnPotazCQd8YQ5skHinbiEbDmJqn58vnt3kQ= From: Arnd Bergmann To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Arnd Bergmann , Russell King , Tony Luck , Fenghua Yu , Greg Ungerer , Finn Thain , Philip Blundell , Joshua Thompson , Sam Creasey , "James E.J. Bottomley" , Helge Deller , Daniel Lezcano , John Stultz , Stephen Boyd , Linus Walleij , linux-ia64@vger.kernel.org, Parisc List , linux-m68k , Linux ARM , Geert Uytterhoeven Subject: [PATCH v2 09/15] m68k: split heartbeat out of timer function Date: Fri, 30 Oct 2020 16:17:52 +0100 Message-Id: <20201030151758.1241164-10-arnd@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201030151758.1241164-1-arnd@kernel.org> References: <20201030151758.1241164-1-arnd@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org From: Arnd Bergmann The heartbeat functionality is mostly separate from the actual timer interrupt handling, and it is only used on five platforms. Split it out into a separate function and call that directly from the timer irq on those platforms. Reviewed-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Reviewed-by: Linus Walleij Signed-off-by: Arnd Bergmann --- arch/m68k/amiga/config.c | 1 + arch/m68k/apollo/config.c | 1 + arch/m68k/atari/time.c | 2 ++ arch/m68k/hp300/time.c | 1 + arch/m68k/include/asm/machdep.h | 7 +++++++ arch/m68k/kernel/time.c | 7 +++++-- arch/m68k/q40/q40ints.c | 2 ++ 7 files changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index bee9f240f35d..29f92333119e 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -480,6 +480,7 @@ static irqreturn_t ciab_timer_handler(int irq, void *dev_id) clk_total += jiffy_ticks; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); return IRQ_HANDLED; } diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c index 762da5d7a415..30915f1a8760 100644 --- a/arch/m68k/apollo/config.c +++ b/arch/m68k/apollo/config.c @@ -173,6 +173,7 @@ irqreturn_t dn_timer_int(int irq, void *dev_id) volatile unsigned char x; timer_handler(irq, dev_id); + timer_heartbeat(); x = *(volatile unsigned char *)(apollo_timer + 3); x = *(volatile unsigned char *)(apollo_timer + 5); diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c index ce923a523695..ce4a5961ca93 100644 --- a/arch/m68k/atari/time.c +++ b/arch/m68k/atari/time.c @@ -21,6 +21,7 @@ #include #include +#include DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL_GPL(rtc_lock); @@ -49,6 +50,7 @@ static irqreturn_t mfp_timer_c_handler(int irq, void *dev_id) } while (last_timer_count == 1); clk_total += INT_TICKS; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); return IRQ_HANDLED; diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c index bfee13e1d0fe..e3cd938de0f9 100644 --- a/arch/m68k/hp300/time.c +++ b/arch/m68k/hp300/time.c @@ -65,6 +65,7 @@ static irqreturn_t hp300_tick(int irq, void *dev_id) clk_total += INTVAL; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); /* Turn off the network and SCSI leds */ diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h index 49bd3266b4b1..e62a39d01ae4 100644 --- a/arch/m68k/include/asm/machdep.h +++ b/arch/m68k/include/asm/machdep.h @@ -35,6 +35,13 @@ extern void (*mach_beep) (unsigned int, unsigned int); /* Hardware clock functions */ extern void hw_timer_init(irq_handler_t handler); extern unsigned long hw_timer_offset(void); +#ifdef CONFIG_HEARTBEAT +extern void timer_heartbeat(void); +#else +static inline void timer_heartbeat(void) +{ +} +#endif extern void config_BSP(char *command, int len); diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index c2697a4d4ddd..c05cec21b05f 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -45,8 +45,12 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) xtime_update(1); update_process_times(user_mode(get_irq_regs())); profile_tick(CPU_PROFILING); + return IRQ_HANDLED; +} #ifdef CONFIG_HEARTBEAT +void timer_heartbeat(void) +{ /* use power LED as a heartbeat instead -- much more useful for debugging -- based on the version for PReP by Cort */ /* acts like an actual heart beat -- ie thump-thump-pause... */ @@ -68,9 +72,8 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) dist = period / 4; } } -#endif /* CONFIG_HEARTBEAT */ - return IRQ_HANDLED; } +#endif /* CONFIG_HEARTBEAT */ #ifdef CONFIG_M68KCLASSIC #if !IS_BUILTIN(CONFIG_RTC_DRV_GENERIC) diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index 1c696906c159..b01b545a2db0 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -17,6 +17,7 @@ #include #include +#include #include #include @@ -144,6 +145,7 @@ static irqreturn_t q40_timer_int(int irq, void *dev_id) local_irq_save(flags); timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); } return IRQ_HANDLED; -- 2.27.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB375C4363A for ; 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Fri, 30 Oct 2020 15:19:08 +0000 Received: from localhost.localdomain (HSI-KBW-46-223-126-90.hsi.kabel-badenwuerttemberg.de [46.223.126.90]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AF5EC22246; Fri, 30 Oct 2020 15:18:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604071140; bh=1U0ECVqd2hNgqIJBzCiaE0G3Htac28AHKdGuEc6XP0Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mYdsPP8cT4riayqUCnHMvcpTSpOrhi3YSE4t0JqeIOcSvOMDaPTkYggDnUgQb2faP h/CoXoTiH3Ok9f0NYQ9R/g3i6G1WgP0MSYZIfi+kiBxsYesZvCwAAJs1uQN9fFAKGG SuIrZnPotazCQd8YQ5skHinbiEbDmJqn58vnt3kQ= From: Arnd Bergmann To: linux-kernel@vger.kernel.org Subject: [PATCH v2 09/15] m68k: split heartbeat out of timer function Date: Fri, 30 Oct 2020 16:17:52 +0100 Message-Id: <20201030151758.1241164-10-arnd@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201030151758.1241164-1-arnd@kernel.org> References: <20201030151758.1241164-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201030_111902_024481_8C665229 X-CRM114-Status: GOOD ( 22.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sam Creasey , Fenghua Yu , Linus Walleij , Tony Luck , linux-ia64@vger.kernel.org, Parisc List , Arnd Bergmann , Stephen Boyd , Philip Blundell , Helge Deller , Daniel Lezcano , Russell King , Finn Thain , "James E.J. Bottomley" , linux-m68k , John Stultz , Linux ARM , Geert Uytterhoeven , Thomas Gleixner , Greg Ungerer , Joshua Thompson Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann The heartbeat functionality is mostly separate from the actual timer interrupt handling, and it is only used on five platforms. Split it out into a separate function and call that directly from the timer irq on those platforms. Reviewed-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Reviewed-by: Linus Walleij Signed-off-by: Arnd Bergmann --- arch/m68k/amiga/config.c | 1 + arch/m68k/apollo/config.c | 1 + arch/m68k/atari/time.c | 2 ++ arch/m68k/hp300/time.c | 1 + arch/m68k/include/asm/machdep.h | 7 +++++++ arch/m68k/kernel/time.c | 7 +++++-- arch/m68k/q40/q40ints.c | 2 ++ 7 files changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index bee9f240f35d..29f92333119e 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -480,6 +480,7 @@ static irqreturn_t ciab_timer_handler(int irq, void *dev_id) clk_total += jiffy_ticks; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); return IRQ_HANDLED; } diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c index 762da5d7a415..30915f1a8760 100644 --- a/arch/m68k/apollo/config.c +++ b/arch/m68k/apollo/config.c @@ -173,6 +173,7 @@ irqreturn_t dn_timer_int(int irq, void *dev_id) volatile unsigned char x; timer_handler(irq, dev_id); + timer_heartbeat(); x = *(volatile unsigned char *)(apollo_timer + 3); x = *(volatile unsigned char *)(apollo_timer + 5); diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c index ce923a523695..ce4a5961ca93 100644 --- a/arch/m68k/atari/time.c +++ b/arch/m68k/atari/time.c @@ -21,6 +21,7 @@ #include #include +#include DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL_GPL(rtc_lock); @@ -49,6 +50,7 @@ static irqreturn_t mfp_timer_c_handler(int irq, void *dev_id) } while (last_timer_count == 1); clk_total += INT_TICKS; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); return IRQ_HANDLED; diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c index bfee13e1d0fe..e3cd938de0f9 100644 --- a/arch/m68k/hp300/time.c +++ b/arch/m68k/hp300/time.c @@ -65,6 +65,7 @@ static irqreturn_t hp300_tick(int irq, void *dev_id) clk_total += INTVAL; clk_offset = 0; timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); /* Turn off the network and SCSI leds */ diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h index 49bd3266b4b1..e62a39d01ae4 100644 --- a/arch/m68k/include/asm/machdep.h +++ b/arch/m68k/include/asm/machdep.h @@ -35,6 +35,13 @@ extern void (*mach_beep) (unsigned int, unsigned int); /* Hardware clock functions */ extern void hw_timer_init(irq_handler_t handler); extern unsigned long hw_timer_offset(void); +#ifdef CONFIG_HEARTBEAT +extern void timer_heartbeat(void); +#else +static inline void timer_heartbeat(void) +{ +} +#endif extern void config_BSP(char *command, int len); diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index c2697a4d4ddd..c05cec21b05f 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -45,8 +45,12 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) xtime_update(1); update_process_times(user_mode(get_irq_regs())); profile_tick(CPU_PROFILING); + return IRQ_HANDLED; +} #ifdef CONFIG_HEARTBEAT +void timer_heartbeat(void) +{ /* use power LED as a heartbeat instead -- much more useful for debugging -- based on the version for PReP by Cort */ /* acts like an actual heart beat -- ie thump-thump-pause... */ @@ -68,9 +72,8 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) dist = period / 4; } } -#endif /* CONFIG_HEARTBEAT */ - return IRQ_HANDLED; } +#endif /* CONFIG_HEARTBEAT */ #ifdef CONFIG_M68KCLASSIC #if !IS_BUILTIN(CONFIG_RTC_DRV_GENERIC) diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index 1c696906c159..b01b545a2db0 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -17,6 +17,7 @@ #include #include +#include #include #include @@ -144,6 +145,7 @@ static irqreturn_t q40_timer_int(int irq, void *dev_id) local_irq_save(flags); timer_routine(0, NULL); + timer_heartbeat(); local_irq_restore(flags); } return IRQ_HANDLED; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel