[meta-freescale] [meta-fsl-arm-extra][PATCH 2/2] linux-congatec-rt: add initial recipe
Raphael Silva
rapphil at gmail.com
Sun Dec 28 23:52:47 PST 2014
Add initial support for 3.10.17-1.0.2 with 3.10.17-rt12 real-time patch.
Signed-off-by: Raphael Silva <raphael.philipe at ossystems.com.br>
---
.../linux-congatec-rt-3.10.17/0001-fix-build.patch | 139 ++++++++
.../0002-fix-build-with-rt-enabled.patch | 111 +++++++
.../0003-no-split-ptlocks.patch | 84 +++++
.../linux/linux-congatec-rt-3.10.17/defconfig | 354 +++++++++++++++++++++
recipes-kernel/linux/linux-congatec-rt_3.10.17.bb | 27 ++
5 files changed, 715 insertions(+)
create mode 100644 recipes-kernel/linux/linux-congatec-rt-3.10.17/0001-fix-build.patch
create mode 100644 recipes-kernel/linux/linux-congatec-rt-3.10.17/0002-fix-build-with-rt-enabled.patch
create mode 100644 recipes-kernel/linux/linux-congatec-rt-3.10.17/0003-no-split-ptlocks.patch
create mode 100644 recipes-kernel/linux/linux-congatec-rt-3.10.17/defconfig
create mode 100644 recipes-kernel/linux/linux-congatec-rt_3.10.17.bb
diff --git a/recipes-kernel/linux/linux-congatec-rt-3.10.17/0001-fix-build.patch b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0001-fix-build.patch
new file mode 100644
index 0000000..8d9ed83
--- /dev/null
+++ b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0001-fix-build.patch
@@ -0,0 +1,139 @@
+Fix the build errors listed below
+
+Upstream-Status: Inappropriate [other]
+Freescale does not currently support the real-time kernel
+
+Signed-off-by: Jacob Kroon <jacob.kroon at mikrodidakt.se>
+
+ CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c: In function 'gckOS_WaitSignal':
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7835:5: error: passing argument 1 of 'spin_lock_irq' from incompatible pointer type [-Werror]
+ spin_lock_irq(&signal->obj.wait.lock);
+ ^
+In file included from include/linux/seqlock.h:29:0,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/spinlock.h:316:20: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
+ static inline void spin_lock_irq(spinlock_t *lock)
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7867:9: error: passing argument 1 of '__add_wait_queue_tail' from incompatible pointer type [-Werror]
+ __add_wait_queue_tail(&signal->obj.wait, &wait);
+ ^
+In file included from include/linux/mmzone.h:9:0,
+ from include/linux/gfp.h:4,
+ from include/linux/kmod.h:22,
+ from include/linux/module.h:13,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/wait.h:120:20: note: expected 'struct wait_queue_head_t *' but argument is of type 'struct swait_head *'
+ static inline void __add_wait_queue_tail(wait_queue_head_t *head,
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7879:13: error: passing argument 1 of 'spin_unlock_irq' from incompatible pointer type [-Werror]
+ spin_unlock_irq(&signal->obj.wait.lock);
+ ^
+In file included from include/linux/seqlock.h:29:0,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/spinlock.h:341:20: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
+ static inline void spin_unlock_irq(spinlock_t *lock)
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7881:13: error: passing argument 1 of 'spin_lock_irq' from incompatible pointer type [-Werror]
+ spin_lock_irq(&signal->obj.wait.lock);
+ ^
+In file included from include/linux/seqlock.h:29:0,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/spinlock.h:316:20: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
+ static inline void spin_lock_irq(spinlock_t *lock)
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7945:9: error: passing argument 1 of '__remove_wait_queue' from incompatible pointer type [-Werror]
+ __remove_wait_queue(&signal->obj.wait, &wait);
+ ^
+In file included from include/linux/mmzone.h:9:0,
+ from include/linux/gfp.h:4,
+ from include/linux/kmod.h:22,
+ from include/linux/module.h:13,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/wait.h:133:20: note: expected 'struct wait_queue_head_t *' but argument is of type 'struct swait_head *'
+ static inline void __remove_wait_queue(wait_queue_head_t *head,
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:7958:5: error: passing argument 1 of 'spin_unlock_irq' from incompatible pointer type [-Werror]
+ spin_unlock_irq(&signal->obj.wait.lock);
+ ^
+In file included from include/linux/seqlock.h:29:0,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/spinlock.h:341:20: note: expected 'struct spinlock_t *' but argument is of type 'struct raw_spinlock_t *'
+ static inline void spin_unlock_irq(spinlock_t *lock)
+ ^
+cc1: all warnings being treated as errors
+make[4]: *** [drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o] Error 1
+
+Index: git/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
+===================================================================
+--- git.orig/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
++++ git/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
+@@ -7832,7 +7832,7 @@ gckOS_WaitSignal(
+
+ might_sleep();
+
+- spin_lock_irq(&signal->obj.wait.lock);
++ raw_spin_lock_irq(&signal->obj.wait.lock);
+
+ if (signal->obj.done)
+ {
+@@ -7862,9 +7862,8 @@ gckOS_WaitSignal(
+ : Wait * HZ / 1000;
+ #endif
+
+- DECLARE_WAITQUEUE(wait, current);
+- wait.flags |= WQ_FLAG_EXCLUSIVE;
+- __add_wait_queue_tail(&signal->obj.wait, &wait);
++ DEFINE_SWAITER(wait);
++ swait_prepare_locked(&signal->obj.wait, &wait);
+
+ while (gcvTRUE)
+ {
+@@ -7876,9 +7875,9 @@ gckOS_WaitSignal(
+ }
+
+ __set_current_state(TASK_INTERRUPTIBLE);
+- spin_unlock_irq(&signal->obj.wait.lock);
++ raw_spin_unlock_irq(&signal->obj.wait.lock);
+ timeout = schedule_timeout(timeout);
+- spin_lock_irq(&signal->obj.wait.lock);
++ raw_spin_lock_irq(&signal->obj.wait.lock);
+
+ if (signal->obj.done)
+ {
+@@ -7942,7 +7941,7 @@ gckOS_WaitSignal(
+ }
+ }
+
+- __remove_wait_queue(&signal->obj.wait, &wait);
++ swait_finish_locked(&signal->obj.wait, &wait);
+
+ #if gcdDETECT_TIMEOUT
+ if (complained)
+@@ -7955,7 +7954,7 @@ gckOS_WaitSignal(
+ #endif
+ }
+
+- spin_unlock_irq(&signal->obj.wait.lock);
++ raw_spin_unlock_irq(&signal->obj.wait.lock);
+
+ OnError:
+ /* Return status. */
diff --git a/recipes-kernel/linux/linux-congatec-rt-3.10.17/0002-fix-build-with-rt-enabled.patch b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0002-fix-build-with-rt-enabled.patch
new file mode 100644
index 0000000..6132b3b
--- /dev/null
+++ b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0002-fix-build-with-rt-enabled.patch
@@ -0,0 +1,111 @@
+Fix the build errors listed below, when PREEMPT_RT_FULL is enabled
+
+Upstream-Status: Pending
+
+Signed-off-by: Jacob Kroon <jacob.kroon at mikrodidakt.se>
+
+ CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o
+In file included from include/linux/seqlock.h:29:0,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c: In function 'gckOS_CreateMutex':
+include/linux/mutex_rt.h:74:24: error: dereferencing 'void *' pointer [-Werror]
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+include/linux/spinlock.h:104:9: note: in definition of macro 'raw_spin_lock_init'
+ do { *(lock) = __RAW_SPIN_LOCK_UNLOCKED(lock); } while (0)
+ ^
+include/linux/mutex_rt.h:74:2: note: in expansion of macro 'rt_mutex_init'
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3046:5: note: in expansion of macro 'mutex_init'
+ mutex_init(*Mutex);
+ ^
+include/linux/mutex_rt.h:74:24: error: request for member 'lock' in something not a structure or union
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+include/linux/spinlock.h:104:9: note: in definition of macro 'raw_spin_lock_init'
+ do { *(lock) = __RAW_SPIN_LOCK_UNLOCKED(lock); } while (0)
+ ^
+include/linux/mutex_rt.h:74:2: note: in expansion of macro 'rt_mutex_init'
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3046:5: note: in expansion of macro 'mutex_init'
+ mutex_init(*Mutex);
+ ^
+In file included from include/linux/spinlock_types.h:18:0,
+ from include/linux/spinlock.h:81,
+ from include/linux/seqlock.h:29,
+ from include/linux/time.h:5,
+ from include/linux/stat.h:18,
+ from include/linux/module.h:10,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+include/linux/mutex_rt.h:74:24: error: dereferencing 'void *' pointer [-Werror]
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+include/linux/mutex_rt.h:74:2: note: in expansion of macro 'rt_mutex_init'
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3046:5: note: in expansion of macro 'mutex_init'
+ mutex_init(*Mutex);
+ ^
+include/linux/mutex_rt.h:74:24: error: request for member 'lock' in something not a structure or union
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+include/linux/mutex_rt.h:74:2: note: in expansion of macro 'rt_mutex_init'
+ rt_mutex_init(&(mutex)->lock); \
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3046:5: note: in expansion of macro 'mutex_init'
+ mutex_init(*Mutex);
+ ^
+In file included from include/linux/mutex.h:28:0,
+ from include/linux/notifier.h:13,
+ from include/linux/memory_hotplug.h:6,
+ from include/linux/mmzone.h:771,
+ from include/linux/gfp.h:4,
+ from include/linux/kmod.h:22,
+ from include/linux/module.h:13,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_linux.h:27,
+ from drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:22:
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c: In function 'gckOS_DeleteMutex':
+include/linux/mutex_rt.h:46:48: error: dereferencing 'void *' pointer [-Werror]
+ #define mutex_destroy(l) rt_mutex_destroy(&(l)->lock)
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3091:5: note: in expansion of macro 'mutex_destroy'
+ mutex_destroy(Mutex);
+ ^
+include/linux/mutex_rt.h:46:48: error: request for member 'lock' in something not a structure or union
+ #define mutex_destroy(l) rt_mutex_destroy(&(l)->lock)
+ ^
+drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:3091:5: note: in expansion of macro 'mutex_destroy'
+ mutex_destroy(Mutex);
+ ^
+cc1: all warnings being treated as errors
+make[4]: *** [drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o] Error 1
+
+Index: git/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
+===================================================================
+--- git.orig/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
++++ git/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
+@@ -3043,7 +3043,7 @@ gckOS_CreateMutex(
+ gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(struct mutex), Mutex));
+
+ /* Initialize the mutex. */
+- mutex_init(*Mutex);
++ mutex_init((struct mutex*)*Mutex);
+
+ /* Return status. */
+ gcmkFOOTER_ARG("*Mutex=0x%X", *Mutex);
+@@ -3088,7 +3088,7 @@ gckOS_DeleteMutex(
+ gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
+
+ /* Destroy the mutex. */
+- mutex_destroy(Mutex);
++ mutex_destroy((struct mutex*)Mutex);
+
+ /* Free the mutex structure. */
+ gcmkONERROR(gckOS_Free(Os, Mutex));
diff --git a/recipes-kernel/linux/linux-congatec-rt-3.10.17/0003-no-split-ptlocks.patch b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0003-no-split-ptlocks.patch
new file mode 100644
index 0000000..b7995b6
--- /dev/null
+++ b/recipes-kernel/linux/linux-congatec-rt-3.10.17/0003-no-split-ptlocks.patch
@@ -0,0 +1,84 @@
+Work around the oops below by disabling split ptlocks
+
+Upstream-Status: Inappropriate [disable feature]
+
+Signed-off-by: Jacob Kroon <jacob.kroon at mikrodidakt.se>
+
+Unable to handle kernel NULL pointer dereference at virtual address 00000000
+pgd = ac5a8000
+[00000000] *pgd=3c8db831, *pte=00000000, *ppte=00000000
+Internal error: Oops: 17 [#1] PREEMPT SMP ARM
+Modules linked in:
+CPU: 1 PID: 277 Comm: test-qt5 Not tainted 3.10.17-rt12-monkey+gec1af9f #2
+task: ac65df80 ti: ac968000 task.ti: ac968000
+PC is at _raw_spin_lock+0x10/0x4c
+LR is at get_parent_ip+0x10/0x2c
+pc : [<80623fd4>] lr : [<8004ef18>] psr: 60010013
+sp : ac969c38 ip : 80c44404 fp : 00000000
+r10: ac65df80 r9 : ac969cd8 r8 : 00000000
+r7 : 00000054 r6 : afffe000 r5 : 00000000 r4 : 00000000
+r3 : ac65df80 r2 : 00000001 r1 : 00000000 r0 : 00000000
+Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
+Control: 10c53c7d Table: 3c5a804a DAC: 00000015
+Process test-qt5 (pid: 277, stack limit = 0xac968238)
+Stack: (0xac969c38 to 0xac96a000)
+9c20: b00549a8 806235e0
+9c40: 00000000 ac968000 812f9a00 80017cec ac969c74 fffffffe 00000000 00005000
+9c60: 00000000 80017e6c ac968000 ac65df80 00000000 00000000 00000001 ac968001
+9c80: ac65df80 b00549a8 00000000 afffe000 00000054 00000000 ac969cd8 afffe150
+9ca0: b0054bf8 8044e540 ac969cd8 b00549a8 ac0b8180 00000230 ac8fd000 00000230
+9cc0: 00000000 8044f6f4 ac155700 ac969cf4 ac155700 804605b8 ac155700 ac969d8c
+9ce0: 00000002 ac969d24 b0054bf8 804607f4 7ef1fcd0 80450078 ac0b8180 ac155700
+9d00: ac969d8c 00000002 ac8fd000 8045f1a0 ac969d24 00000000 ac8fd01c b00549a8
+9d20: b0050000 00000008 ac969d98 ac0b8300 ac969d8c 00000115 ac969d98 ac969e00
+9d40: ac155600 ac3985f0 7ef1fcd0 8045661c 00000115 00000000 00000001 00000000
+9d60: 00007530 80454144 80c32e18 00000001 81518e18 806237dc 00000001 ac968038
+9d80: 00000000 00000000 00000000 00000000 00000115 806237dc ac6f5688 ac968018
+9da0: 812e1640 00000000 00000001 ac968000 ac969dc4 8004efe4 ac968008 ac39a000
+9dc0: ac744400 ac968020 00007530 ac968000 ac968000 ac3985f0 7ef1fcd0 8044d374
+9de0: 7ef1fd20 00000000 000000f8 00000000 7ef1fd20 00000000 000000f8 00000000
+9e00: 00000028 00000002 00000000 6437d1dd 7ef1fddc 76f9c030 7ef1fd88 76fb9abc
+9e20: 00000320 00005007 e02c7eca c1399eff 020fb2db 00000000 00000000 00000000
+9e40: 00000001 00000040 00000400 00000004 00000010 00000400 00000002 00000100
+9e60: 00000100 00000008 00000008 00000000 ffffffff 00000000 7588e180 76fb1000
+9e80: 08000000 00000000 00000000 76fb11b8 000000af 760b6cd8 ffffffff 7431d4c0
+9ea0: 000cb1ac 75889000 00000000 00000001 000000b0 00000000 00000000 76fa0da0
+9ec0: 00000000 00000001 00000001 00000000 00000000 7588cb40 00000001 75957ecc
+9ee0: 00000001 7ef1fe7c 75953e94 7ef1fedc 00000002 76fa789c 00007530 ac6813c0
+9f00: 00000000 7ef1fcd0 ac6813c0 ac968000 ac3985f0 800d68fc 00000001 ac968000
+9f20: ac969f34 8004efe4 ac4f71d4 6c31d000 00000000 80623fd4 00000000 80623578
+9f40: ac4f71d4 800a3d40 00000001 00000000 ac969f5c 00000003 ac6813c8 00000000
+9f60: 00000001 00007530 00000003 00000000 7ef1fcd0 ac6813c0 ac968000 00000000
+9f80: 00000000 800d6afc ac4f7180 00000000 00002710 00007530 75957e40 00000036
+9fa0: 8000e2c4 8000e140 00002710 00007530 00000003 00007530 7ef1fcd0 01bc3008
+9fc0: 00002710 00007530 75957e40 00000036 01bd2e70 00000001 7ef1fd20 00000000
+9fe0: 759540c4 7ef1fcbc 7593f698 760a0ccc 20010010 00000003 00000000 00000000
+[<80623fd4>] (_raw_spin_lock+0x10/0x4c) from [<806235e0>] (rt_spin_lock_slowlock+0x34/0x29c)
+[<806235e0>] (rt_spin_lock_slowlock+0x34/0x29c) from [<8044e540>] (_QueryProcessPageTable+0x8c/0xdc)
+[<8044e540>] (_QueryProcessPageTable+0x8c/0xdc) from [<8044f6f4>] (gckOS_GetPhysicalAddress+0x20/0x58)
+[<8044f6f4>] (gckOS_GetPhysicalAddress+0x20/0x58) from [<804605b8>] (gckHARDWARE_ConvertLogical+0x2c/0x90)
+[<804605b8>] (gckHARDWARE_ConvertLogical+0x2c/0x90) from [<804607f4>] (gckHARDWARE_Link+0x60/0x104)
+[<804607f4>] (gckHARDWARE_Link+0x60/0x104) from [<8045f1a0>] (gckCONTEXT_Construct+0x264/0x2bc)
+[<8045f1a0>] (gckCONTEXT_Construct+0x264/0x2bc) from [<8045661c>] (gckCOMMAND_Attach+0x44/0x88)
+[<8045661c>] (gckCOMMAND_Attach+0x44/0x88) from [<80454144>] (gckKERNEL_Dispatch+0x358/0x12c8)
+[<80454144>] (gckKERNEL_Dispatch+0x358/0x12c8) from [<8044d374>] (drv_ioctl+0x120/0x284)
+[<8044d374>] (drv_ioctl+0x120/0x284) from [<800d68fc>] (do_vfs_ioctl+0x408/0x5d0)
+[<800d68fc>] (do_vfs_ioctl+0x408/0x5d0) from [<800d6afc>] (SyS_ioctl+0x38/0x64)
+[<800d6afc>] (SyS_ioctl+0x38/0x64) from [<8000e140>] (ret_fast_syscall+0x0/0x30)
+Code: e92d4010 e1a04000 e3a00001 ebe8abd7 (e1943f9f)
+---[ end trace 0000000000000002 ]---
+note: test-qt5[277] exited with preempt_count 1
+
+Index: git/include/linux/mm_types.h
+===================================================================
+--- git.orig/include/linux/mm_types.h
++++ git/include/linux/mm_types.h
+@@ -24,7 +24,7 @@
+
+ struct address_space;
+
+-#define USE_SPLIT_PTLOCKS (NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
++#define USE_SPLIT_PTLOCKS (0)
+
+ /*
+ * Each physical page in the system has a struct page associated with
diff --git a/recipes-kernel/linux/linux-congatec-rt-3.10.17/defconfig b/recipes-kernel/linux/linux-congatec-rt-3.10.17/defconfig
new file mode 100644
index 0000000..1d38f4e
--- /dev/null
+++ b/recipes-kernel/linux/linux-congatec-rt-3.10.17/defconfig
@@ -0,0 +1,354 @@
+CONFIG_KERNEL_LZO=y
+CONFIG_SYSVIPC=y
+CONFIG_FHANDLE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_CGROUPS=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_PERF_EVENTS=y
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_GPIO_PCA953X=y
+CONFIG_ARCH_MXC=y
+CONFIG_MXC_DEBUG_BOARD=y
+CONFIG_MACH_IMX51_DT=y
+CONFIG_MACH_EUKREA_CPUIMX51SD=y
+CONFIG_SOC_IMX53=y
+CONFIG_SOC_IMX6Q=y
+CONFIG_SOC_IMX6SL=y
+CONFIG_SOC_VF610=y
+# CONFIG_SWP_EMULATE is not set
+CONFIG_SMP=y
+CONFIG_VMSPLIT_2G=y
+CONFIG_PREEMPT_RT_FULL=y
+CONFIG_AEABI=y
+# CONFIG_OABI_COMPAT is not set
+CONFIG_HIGHMEM=y
+CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"
+CONFIG_CPU_FREQ=y
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_ARM_IMX6_CPUFREQ=y
+CONFIG_CPU_IDLE=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_BINFMT_MISC=m
+CONFIG_PM_RUNTIME=y
+CONFIG_PM_DEBUG=y
+CONFIG_PM_TEST_SUSPEND=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_IPV6=y
+CONFIG_NETFILTER=y
+CONFIG_VLAN_8021Q=y
+CONFIG_CAN=y
+CONFIG_CAN_FLEXCAN=y
+CONFIG_CFG80211=y
+CONFIG_CFG80211_WEXT=y
+CONFIG_MAC80211=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+CONFIG_CMA=y
+CONFIG_CMA_SIZE_MBYTES=320
+CONFIG_IMX_WEIM=y
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_DATAFLASH=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_SST25L=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_GPMI_NAND=y
+CONFIG_MTD_NAND_MXC=y
+CONFIG_MTD_UBI=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=65536
+CONFIG_EEPROM_AT24=y
+CONFIG_EEPROM_AT25=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SCAN_ASYNC=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_SATA_AHCI_PLATFORM=y
+CONFIG_AHCI_IMX=y
+CONFIG_PATA_IMX=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_VENDOR_BROADCOM is not set
+CONFIG_CS89x0=y
+CONFIG_CS89x0_PLATFORM=y
+# CONFIG_NET_VENDOR_FARADAY is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MICROCHIP is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+CONFIG_SMC91X=y
+CONFIG_SMC911X=y
+CONFIG_SMSC911X=y
+# CONFIG_NET_VENDOR_STMICRO is not set
+CONFIG_ATH_CARDS=y
+CONFIG_ATH6KL=m
+CONFIG_ATH6KL_SDIO=m
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_EVDEV=y
+CONFIG_INPUT_EVBUG=m
+CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_IMX=y
+CONFIG_MOUSE_PS2=m
+CONFIG_MOUSE_PS2_ELANTECH=y
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_TOUCHSCREEN_EGALAX=y
+CONFIG_TOUCHSCREEN_ELAN=y
+CONFIG_TOUCHSCREEN_MAX11801=y
+CONFIG_TOUCHSCREEN_MC13783=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_MMA8450=y
+CONFIG_INPUT_ISL29023=y
+CONFIG_SERIO_SERPORT=m
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_IMX=y
+CONFIG_SERIAL_IMX_CONSOLE=y
+CONFIG_SERIAL_FSL_LPUART=y
+CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
+CONFIG_FSL_OTP=y
+CONFIG_MXS_VIIM=y
+# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
+# CONFIG_I2C_HELPER_AUTO is not set
+CONFIG_I2C_ALGOPCF=m
+CONFIG_I2C_ALGOPCA=m
+CONFIG_I2C_IMX=y
+CONFIG_SPI=y
+CONFIG_SPI_IMX=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_SABRESD_MAX8903=y
+CONFIG_IMX6_USB_CHARGER=y
+CONFIG_SENSORS_MAX17135=y
+CONFIG_SENSORS_MAG3110=y
+CONFIG_THERMAL=y
+CONFIG_CPU_THERMAL=y
+CONFIG_IMX_THERMAL=y
+CONFIG_DEVICE_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_IMX2_WDT=y
+CONFIG_MFD_DA9052_I2C=y
+CONFIG_MFD_MC13XXX_SPI=y
+CONFIG_MFD_MC13XXX_I2C=y
+CONFIG_MFD_MAX17135=y
+CONFIG_MFD_SI476X_CORE=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_DA9052=y
+CONFIG_REGULATOR_ANATOP=y
+CONFIG_REGULATOR_MC13783=y
+CONFIG_REGULATOR_MC13892=y
+CONFIG_REGULATOR_MAX17135=y
+CONFIG_REGULATOR_PFUZE100=y
+CONFIG_MEDIA_SUPPORT=y
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_RADIO_SUPPORT=y
+CONFIG_VIDEO_V4L2_INT_DEVICE=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=m
+CONFIG_V4L_PLATFORM_DRIVERS=y
+CONFIG_VIDEO_MXC_OUTPUT=y
+CONFIG_VIDEO_MXC_CAPTURE=m
+CONFIG_VIDEO_MXC_CSI_CAMERA=m
+CONFIG_MXC_CAMERA_OV5640=m
+CONFIG_MXC_CAMERA_OV5642=m
+CONFIG_MXC_CAMERA_OV5640_MIPI=m
+CONFIG_MXC_TVIN_ADV7180=m
+CONFIG_MXC_IPU_DEVICE_QUEUE_SDC=m
+CONFIG_VIDEO_MXC_IPU_OUTPUT=y
+CONFIG_VIDEO_MXC_PXP_V4L2=y
+CONFIG_SOC_CAMERA=y
+CONFIG_VIDEO_MX3=y
+CONFIG_RADIO_SI476X=y
+CONFIG_SOC_CAMERA_OV2640=y
+CONFIG_DRM=y
+CONFIG_DRM_VIVANTE=y
+CONFIG_FB=y
+CONFIG_FB_MXS=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_L4F00242T03=y
+CONFIG_LCD_PLATFORM=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_PWM=y
+CONFIG_FB_MXC_SYNC_PANEL=y
+CONFIG_FB_MXC_LDB=y
+CONFIG_FB_MXC_MIPI_DSI=y
+CONFIG_FB_MXC_TRULY_WVGA_SYNC_PANEL=y
+CONFIG_FB_MXC_HDMI=y
+CONFIG_FB_MXC_EINK_PANEL=y
+CONFIG_FB_MXS_SII902X=y
+CONFIG_HANNSTAR_CABC=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
+CONFIG_LOGO=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_USB_AUDIO=m
+CONFIG_SND_SOC=y
+CONFIG_SND_IMX_SOC=y
+CONFIG_SND_SOC_EUKREA_TLV320=y
+CONFIG_SND_SOC_IMX_CS42888=y
+CONFIG_SND_SOC_IMX_WM8962=y
+CONFIG_SND_SOC_IMX_SGTL5000=y
+CONFIG_SND_SOC_IMX_SPDIF=y
+CONFIG_SND_SOC_IMX_MC13783=y
+CONFIG_SND_SOC_IMX_HDMI=y
+CONFIG_SND_SOC_IMX_SI476X=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_UDC=y
+CONFIG_USB_CHIPIDEA_HOST=y
+CONFIG_USB_PHY=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_MXS_PHY=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_ZERO=m
+CONFIG_USB_ETH=m
+CONFIG_USB_MASS_STORAGE=m
+CONFIG_USB_G_SERIAL=m
+CONFIG_MMC=y
+CONFIG_MMC_UNSAFE_RESUME=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SDHCI_ESDHC_IMX=y
+CONFIG_MXC_IPU=y
+CONFIG_MXC_GPU_VIV=y
+CONFIG_MXC_ASRC=y
+CONFIG_MXC_MIPI_CSI2=y
+CONFIG_MXC_MLB150=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_GPIO=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_INTF_DEV_UIE_EMUL=y
+CONFIG_RTC_DRV_MC13XXX=y
+CONFIG_RTC_DRV_MXC=y
+CONFIG_RTC_DRV_SNVS=y
+CONFIG_DMADEVICES=y
+CONFIG_MXC_PXP_V2=y
+CONFIG_IMX_SDMA=y
+CONFIG_MXS_DMA=y
+CONFIG_STAGING=y
+CONFIG_COMMON_CLK_DEBUG=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_PWM=y
+CONFIG_PWM_IMX=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+# CONFIG_PRINT_QUOTA_WARNING is not set
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_ISO9660_FS=m
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_UBIFS_FS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_ROOT_NFS=y
+CONFIG_NLS_DEFAULT="cp437"
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_UTF8=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_FTRACE is not set
+CONFIG_SECURITYFS=y
+CONFIG_CRYPTO_USER=y
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CCM=y
+CONFIG_CRYPTO_GCM=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CTS=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_LRW=y
+CONFIG_CRYPTO_XTS=y
+CONFIG_CRYPTO_MD4=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=y
+CONFIG_CRYPTO_RMD128=y
+CONFIG_CRYPTO_RMD160=y
+CONFIG_CRYPTO_RMD256=y
+CONFIG_CRYPTO_RMD320=y
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_SHA512=y
+CONFIG_CRYPTO_TGR192=y
+CONFIG_CRYPTO_WP512=y
+CONFIG_CRYPTO_BLOWFISH=y
+CONFIG_CRYPTO_CAMELLIA=y
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_TWOFISH=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_DEV_FSL_CAAM=y
+CONFIG_CRYPTO_DEV_FSL_CAAM_SM=y
+CONFIG_CRYPTO_DEV_FSL_CAAM_SM_TEST=y
+CONFIG_CRYPTO_DEV_FSL_CAAM_SECVIO=y
+CONFIG_CRC_CCITT=m
+CONFIG_CRC_T10DIF=y
+CONFIG_CRC7=m
+CONFIG_LIBCRC32C=m
diff --git a/recipes-kernel/linux/linux-congatec-rt_3.10.17.bb b/recipes-kernel/linux/linux-congatec-rt_3.10.17.bb
new file mode 100644
index 0000000..694efab
--- /dev/null
+++ b/recipes-kernel/linux/linux-congatec-rt_3.10.17.bb
@@ -0,0 +1,27 @@
+# Congatec QMX6 Linux/kernel PREEMPT_RT, based on linux-imx-rt_3.10.17.bb
+
+SUMMARY = "Linux real-time kernel based on linux-congatec"
+DESCRIPTION = "Linux kernel that is based on Congatec's Linux, \
+with added real-time capabilities."
+
+require recipes-kernel/linux/linux-imx.inc
+require recipes-kernel/linux/linux-dtb.inc
+
+DEPENDS += "lzop-native bc-native"
+
+SRCBRANCH = "cgt_imx_3.10.17_1.0.2"
+
+SRC_URI = "git://git.congatec.com/arm/qmx6_kernel.git;protocol=http;branch=${SRCBRANCH} \
+ file://defconfig \
+ https://www.kernel.org/pub/linux/kernel/projects/rt/3.10/older/patch-3.10.17-rt12.patch.bz2;name=rt-patch1 \
+ file://0001-fix-build.patch \
+ file://0002-fix-build-with-rt-enabled.patch \
+ file://0003-no-split-ptlocks.patch \
+"
+
+SRCREV = "c5c5cfafde65a58d8af3785a16d2173eb53f7b1f"
+LOCALVERSION = "-1.0.2"
+
+COMPATIBLE_MACHINE = "(cgtqmx6)"
+SRC_URI[rt-patch1.md5sum] = "77a28c8b20b01f280dcd860e606a6edd"
+SRC_URI[rt-patch1.sha256sum] = "ce219268f08eecccb39ff2b5be83657d53ca67cb1c6b81021494075197190351"
\ No newline at end of file
--
2.2.0
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