linux-toradex.git/arch/arm/kernel/entry-v7m.S, branch v5.0 Linux kernel for Apalis and Colibri modules ARM: rename S_FRAME_SIZE to PT_REGS_SIZE 2016-06-22T18:54:28+00:00 Russell King rmk+kernel@armlinux.org.uk 2016-05-10T15:34:27+00:00 5745eef6b813194b4dd3e2aee1dd712d8512bf91 S_FRAME_SIZE is no longer the size of the kernel stack frame, so this name is misleading. It is the size of the kernel pt_regs structure. Name it so. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> 
S_FRAME_SIZE is no longer the size of the kernel stack frame, so this
name is misleading.  It is the size of the kernel pt_regs structure.
Name it so.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
ARM: 8450/1: v7-M: Use ret_to_user_from_irq in PendSV handler 2015-11-16T18:34:37+00:00 Ezequiel Garcia ezequiel@vanguardiasur.com.ar 2015-10-30T20:08:05+00:00 440ee365d30adbcd9a97fba9cd629cedb7e9b7cb The PendSV handler calls v7m_exception_entry which disables IRQs. Therefore, since IRQs are already disabled, the PendSV handler can return using ret_to_user_from_irq. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The PendSV handler calls v7m_exception_entry which
disables IRQs. Therefore, since IRQs are already disabled,
the PendSV handler can return using ret_to_user_from_irq.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 8340/1: ARMv7-M: Enlarge vector table up to 256 entries 2015-05-08T09:42:21+00:00 Maxime Coquelin stm32 mcoquelin.stm32@gmail.com 2015-04-10T08:46:46+00:00 6b1814cde5c79c6aa4d02c9aedc14a709c2c0737 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. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Stefan Agner <stefan@agner.ch> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
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.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Stefan Agner <stefan@agner.ch>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 8295/1: fix v7M build for !CONFIG_PRINTK 2015-01-29T15:23:12+00:00 Rob Herring r.herring@freescale.com 2015-01-28T15:05:04+00:00 ed46092518aaed9e5266f8dd87ac12bf18cfc8e8 Minimal builds for v7M are broken when printk is disabled. The caller is assembly so add the necessary ifdef around the call. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Minimal builds for v7M are broken when printk is disabled. The caller is
assembly so add the necessary ifdef around the call.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 7890/1: v7-M: drop using mach/entry-macro.S 2013-12-29T12:32:32+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2013-11-14T10:45:59+00:00 e6d159cdf9f79edd1738bd1f3b430226fe3924ae The only v7-M platform only has some unused stubs in its mach/entry-macro.S file. So don't include it which allows efm32 to drop the file. Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The only v7-M platform only has some unused stubs in its
mach/entry-macro.S file. So don't include it which allows efm32 to drop
the file.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 7800/1: ARMv7-M: Fix name of NVIC handler function 2013-07-31T10:12:58+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2013-07-30T10:33:00+00:00 bed859c1eea89feaba2acbb57d967a6d6f68af09 The name changed in response to review comments for the nvic irqchip driver when the original name was already accepted into Russell King's tree. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The name changed in response to review comments for the nvic irqchip
driver when the original name was already accepted into Russell King's
tree.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: ARMv7-M: Add support for exception handling 2013-04-17T19:44:46+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2010-05-21T17:06:42+00:00 19c4d593f0b4bd46f6d923a3e514719982a22058 This patch implements the exception handling for the ARMv7-M architecture (pretty different from the A or R profiles). It bases on work done earlier by Catalin for 2.6.33 but was nearly completely rewritten to use a pt_regs layout compatible to the A profile. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Jonathan Austin <jonathan.austin@arm.com> Tested-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 
This patch implements the exception handling for the ARMv7-M
architecture (pretty different from the A or R profiles).

It bases on work done earlier by Catalin for 2.6.33 but was nearly
completely rewritten to use a pt_regs layout compatible to the A
profile.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Jonathan Austin <jonathan.austin@arm.com>
Tested-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>