diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch b/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch deleted file mode 100644 index 42934e2245..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0148-bus-fsl-mc-use-raw-spin-lock-to-serialize-mc-cmds.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 035546179039d430b32b2cace256552455abf061 Mon Sep 17 00:00:00 2001 -From: Laurentiu Tudor <laurentiu.tudor@nxp.com> -Date: Thu, 29 Aug 2019 11:39:45 +0300 -Subject: [PATCH] bus: fsl-mc: use raw spin lock to serialize mc cmds - -Replace the spinlock that serializes the MC commands with a raw -spinlock. This is needed for the RT kernel because there are MC -commands sent in interrupt context. - -Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> ---- - drivers/bus/fsl-mc/mc-io.c | 2 +- - drivers/bus/fsl-mc/mc-sys.c | 4 ++-- - include/linux/fsl/mc.h | 2 +- - 3 files changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/bus/fsl-mc/mc-io.c -+++ b/drivers/bus/fsl-mc/mc-io.c -@@ -82,7 +82,7 @@ int __must_check fsl_create_mc_io(struct - mc_io->portal_phys_addr = mc_portal_phys_addr; - mc_io->portal_size = mc_portal_size; - if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) -- spin_lock_init(&mc_io->spinlock); -+ raw_spin_lock_init(&mc_io->spinlock); - else - mutex_init(&mc_io->mutex); - ---- a/drivers/bus/fsl-mc/mc-sys.c -+++ b/drivers/bus/fsl-mc/mc-sys.c -@@ -251,7 +251,7 @@ int mc_send_command(struct fsl_mc_io *mc - return -EINVAL; - - if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) -- spin_lock_irqsave(&mc_io->spinlock, irq_flags); -+ raw_spin_lock_irqsave(&mc_io->spinlock, irq_flags); - else - mutex_lock(&mc_io->mutex); - -@@ -287,7 +287,7 @@ int mc_send_command(struct fsl_mc_io *mc - error = 0; - common_exit: - if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) -- spin_unlock_irqrestore(&mc_io->spinlock, irq_flags); -+ raw_spin_unlock_irqrestore(&mc_io->spinlock, irq_flags); - else - mutex_unlock(&mc_io->mutex); - ---- a/include/linux/fsl/mc.h -+++ b/include/linux/fsl/mc.h -@@ -340,7 +340,7 @@ struct fsl_mc_io { - * This field is only meaningful if the - * FSL_MC_IO_ATOMIC_CONTEXT_PORTAL flag is set - */ -- spinlock_t spinlock; /* serializes mc_send_command() */ -+ raw_spinlock_t spinlock; /* serializes mc_send_command() */ - }; - }; - |