diff options
Diffstat (limited to 'debian/patches-rt/0267-arm-imx6-cpuidle-Use-raw_spinlock_t.patch')
| -rw-r--r-- | debian/patches-rt/0267-arm-imx6-cpuidle-Use-raw_spinlock_t.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/debian/patches-rt/0267-arm-imx6-cpuidle-Use-raw_spinlock_t.patch b/debian/patches-rt/0267-arm-imx6-cpuidle-Use-raw_spinlock_t.patch new file mode 100644 index 000000000..469d00fed --- /dev/null +++ b/debian/patches-rt/0267-arm-imx6-cpuidle-Use-raw_spinlock_t.patch @@ -0,0 +1,52 @@ +From 2fba570810dc44f1b4e171167882ff311417e129 Mon Sep 17 00:00:00 2001 +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Tue, 14 May 2019 17:07:44 +0200 +Subject: [PATCH 267/347] arm: imx6: cpuidle: Use raw_spinlock_t +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +[ Upstream commit 40d0332ec8312e9c090f0a5414d9c90e12b13611 ] + +The idle call back is invoked with disabled interrupts and requires +raw_spinlock_t locks to work. + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> +--- + arch/arm/mach-imx/cpuidle-imx6q.c | 10 +++++----- + 1 file changed, 5 insertions(+), 5 deletions(-) + +diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c +index 326e870d7123..d9ac80aa1eb0 100644 +--- a/arch/arm/mach-imx/cpuidle-imx6q.c ++++ b/arch/arm/mach-imx/cpuidle-imx6q.c +@@ -17,22 +17,22 @@ + #include "hardware.h" + + static int num_idle_cpus = 0; +-static DEFINE_SPINLOCK(cpuidle_lock); ++static DEFINE_RAW_SPINLOCK(cpuidle_lock); + + static int imx6q_enter_wait(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) + { +- spin_lock(&cpuidle_lock); ++ raw_spin_lock(&cpuidle_lock); + if (++num_idle_cpus == num_online_cpus()) + imx6_set_lpm(WAIT_UNCLOCKED); +- spin_unlock(&cpuidle_lock); ++ raw_spin_unlock(&cpuidle_lock); + + cpu_do_idle(); + +- spin_lock(&cpuidle_lock); ++ raw_spin_lock(&cpuidle_lock); + if (num_idle_cpus-- == num_online_cpus()) + imx6_set_lpm(WAIT_CLOCKED); +- spin_unlock(&cpuidle_lock); ++ raw_spin_unlock(&cpuidle_lock); + + return index; + } +-- +2.36.1 + |