brcm2708: add 3.14 support

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 42680

1 files changed, 166 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-3.14/0007-vchiq-Avoid-high-load-when-blocked-and-unkillable.patch b/target/linux/brcm2708/patches-3.14/0007-vchiq-Avoid-high-load-when-blocked-and-unkillable.patch
new file mode 100644
index 0000000000..2df9f19449
--- /dev/null
+++ b/target/linux/brcm2708/patches-3.14/0007-vchiq-Avoid-high-load-when-blocked-and-unkillable.patch
@@ -0,0 +1,166 @@
+From 376fdba15bcf4b106ba7d62ee350baf21099cfbf Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 12 May 2014 15:12:02 +0100
+Subject: [PATCH 07/54] vchiq: Avoid high load when blocked and unkillable
+
+---
+ .../interface/vchiq_arm/vchiq_2835_arm.c           |  1 +
+ .../vc04_services/interface/vchiq_arm/vchiq_arm.c  |  1 +
+ .../interface/vchiq_arm/vchiq_connected.c          |  1 +
+ .../vc04_services/interface/vchiq_arm/vchiq_core.c |  1 +
+ .../interface/vchiq_arm/vchiq_kern_lib.c           |  1 +
+ .../interface/vchiq_arm/vchiq_killable.h           | 69 ++++++++++++++++++++++
+ .../vc04_services/interface/vchiq_arm/vchiq_util.c |  1 +
+ 7 files changed, 75 insertions(+)
+ create mode 100644 drivers/misc/vc04_services/interface/vchiq_arm/vchiq_killable.h
+
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+index b3bdaa2..7e7b09f 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+@@ -56,6 +56,7 @@
+ #include "vchiq_arm.h"
+ #include "vchiq_2835.h"
+ #include "vchiq_connected.h"
++#include "vchiq_killable.h"
+ 
+ #define MAX_FRAGMENTS (VCHIQ_NUM_CURRENT_BULKS * 2)
+ 
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_arm.c
+index c1fb8c3..99c8967e 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -49,6 +49,7 @@
+ #include "vchiq_core.h"
+ #include "vchiq_ioctl.h"
+ #include "vchiq_arm.h"
++#include "vchiq_killable.h"
+ 
+ #define DEVICE_NAME "vchiq"
+ 
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_connected.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_connected.c
+index 65f4b52..5efc62f 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_connected.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_connected.c
+@@ -33,6 +33,7 @@
+ 
+ #include "vchiq_connected.h"
+ #include "vchiq_core.h"
++#include "vchiq_killable.h"
+ #include <linux/module.h>
+ #include <linux/mutex.h>
+ 
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_core.c
+index f35ed4f..71ed0a5 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_core.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_core.c
+@@ -32,6 +32,7 @@
+  */
+ 
+ #include "vchiq_core.h"
++#include "vchiq_killable.h"
+ 
+ #define VCHIQ_SLOT_HANDLER_STACK 8192
+ 
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c
+index be9735f..5a4182e 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c
+@@ -39,6 +39,7 @@
+ 
+ #include "vchiq_core.h"
+ #include "vchiq_arm.h"
++#include "vchiq_killable.h"
+ 
+ /* ---- Public Variables ------------------------------------------------- */
+ 
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_killable.h b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_killable.h
+new file mode 100644
+index 0000000..505ee1a
+--- /dev/null
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_killable.h
+@@ -0,0 +1,69 @@
++/**
++ * Copyright (c) 2010-2012 Broadcom. All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#ifndef VCHIQ_KILLABLE_H
++#define VCHIQ_KILLABLE_H
++
++#include <linux/mutex.h>
++#include <linux/semaphore.h>
++
++#define SHUTDOWN_SIGS   (sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
++
++static inline int __must_check down_interruptible_killable(struct semaphore *sem)
++{
++	/* Allow interception of killable signals only. We don't want to be interrupted by harmless signals like SIGALRM */
++	int ret;
++	sigset_t blocked, oldset;
++	siginitsetinv(&blocked, SHUTDOWN_SIGS);
++	sigprocmask(SIG_SETMASK, &blocked, &oldset);
++	ret = down_interruptible(sem);
++	sigprocmask(SIG_SETMASK, &oldset, NULL);
++	return ret;
++}
++#define down_interruptible down_interruptible_killable
++
++
++static inline int __must_check mutex_lock_interruptible_killable(struct mutex *lock)
++{
++	/* Allow interception of killable signals only. We don't want to be interrupted by harmless signals like SIGALRM */
++	int ret;
++	sigset_t blocked, oldset;
++	siginitsetinv(&blocked, SHUTDOWN_SIGS);
++	sigprocmask(SIG_SETMASK, &blocked, &oldset);
++	ret = mutex_lock_interruptible(lock);
++	sigprocmask(SIG_SETMASK, &oldset, NULL);
++	return ret;
++}
++#define mutex_lock_interruptible mutex_lock_interruptible_killable
++
++#endif
+diff --git a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_util.c b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_util.c
+index c2eefef..05e7979 100644
+--- a/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_util.c
++++ b/drivers/misc/vc04_services/interface/vchiq_arm/vchiq_util.c
+@@ -32,6 +32,7 @@
+  */
+ 
+ #include "vchiq_util.h"
++#include "vchiq_killable.h"
+ 
+ static inline int is_pow2(int i)
+ {
+-- 
+1.9.1
+