Re: [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries
From: Uwe Kleine-König <hidden>
Date: 2015-02-20 19:48:56
Also in:
linux-arch, linux-arm-kernel, linux-devicetree, linux-gpio, linux-serial, lkml
Possibly related (same subject, not in this thread)
- 2015-03-09 · Re: [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries · Maxime Coquelin <mcoquelin.stm32@gmail.com>
- 2015-03-09 · Re: [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries · Stefan Agner <stefan@agner.ch>
- 2015-02-20 · [PATCH v2 02/18] ARM: ARMv7M: Enlarge vector table to 256 entries · Maxime Coquelin <hidden>
On Fri, Feb 20, 2015 at 07:01:01PM +0100, Maxime Coquelin wrote:
quoted hunk
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 <mcoquelin.stm32@gmail.com> --- 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.
+ .align 9 +#else + .align 10 +#endif +
Other than that: Acked-by: Uwe Kleine-König <redacted> Who do you target to apply this series? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |