From mboxrd@z Thu Jan 1 00:00:00 1970 From: mcoquelin.stm32@gmail.com (Maxime Coquelin) Date: Mon, 23 Feb 2015 11:33:31 +0100 Subject: [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries In-Reply-To: <20150220194756.GS19388@pengutronix.de> References: <1424455277-29983-1-git-send-email-mcoquelin.stm32@gmail.com> <1424455277-29983-3-git-send-email-mcoquelin.stm32@gmail.com> <20150220194756.GS19388@pengutronix.de> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 2015-02-20 20:47 GMT+01:00 Uwe Kleine-K?nig : > On Fri, Feb 20, 2015 at 07:01:01PM +0100, Maxime Coquelin wrote: >> From Cortex-M reference manuals, the nvic supports up to 240 interrupts. >> So the number of entries in vectors table is up to 256. >> >> This patch adds a new config flag to specify the number of external interrupts. >> Some ifdeferies are added in order to respect the natural alignment without >> wasting too much space on smaller systems. >> >> Signed-off-by: Maxime Coquelin >> --- >> arch/arm/kernel/entry-v7m.S | 13 +++++++++---- >> arch/arm/mm/Kconfig | 15 +++++++++++++++ >> 2 files changed, 24 insertions(+), 4 deletions(-) >> >> diff --git a/arch/arm/kernel/entry-v7m.S b/arch/arm/kernel/entry-v7m.S >> index 8944f49..68cde36 100644 >> --- a/arch/arm/kernel/entry-v7m.S >> +++ b/arch/arm/kernel/entry-v7m.S >> @@ -117,9 +117,14 @@ ENTRY(__switch_to) >> ENDPROC(__switch_to) >> >> .data >> - .align 8 >> +#if CONFIG_CPUV7M_NUM_IRQ <= 112 > I would have called this CONFIG_CPU_V7M_NUM_IRQ to match the already > existing CPU_V7M symbol. That's better indeed. It will be changed in v3. > >> + .align 9 >> +#else >> + .align 10 >> +#endif >> + > > Other than that: > Acked-by: Uwe Kleine-K?nig > > Who do you target to apply this series? I guess it should go through Russell's Patch Tracking System? Thanks, Maxime > > Best regards > Uwe > > -- > Pengutronix e.K. | Uwe Kleine-K?nig | > Industrial Linux Solutions | http://www.pengutronix.de/ |