From 3b5d56b9317fa7b5407dff1aa7b115bf6cdbd494 Mon Sep 17 00:00:00 2001
From: Eric B Munson <emunson@mgebm.net>
Date: Sat, 10 Mar 2012 14:37:26 -0500
Subject: kvmclock: Add functions to check if the host has stopped the vm

When a host stops or suspends a VM it will set a flag to show this.  The
watchdog will use these functions to determine if a softlockup is real, or the
result of a suspended VM.

Signed-off-by: Eric B Munson <emunson@mgebm.net>
asm-generic changes Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/c6x/include/asm/kvm_para.h | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 arch/c6x/include/asm/kvm_para.h

(limited to 'arch/c6x')

diff --git a/arch/c6x/include/asm/kvm_para.h b/arch/c6x/include/asm/kvm_para.h
new file mode 100644
index 000000000000..14fab8f0b957
--- /dev/null
+++ b/arch/c6x/include/asm/kvm_para.h
@@ -0,0 +1 @@
+#include <asm-generic/kvm_para.h>
-- 
cgit 


From 18d14704d66f651395a68c8a70c86f0a22bccb31 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Tue, 1 May 2012 20:37:49 -0400
Subject: C6X: change main arch kbuild symbol

Currently the c6x architecture uses CONFIG_TMS320C6X as the main
architecture symbol. Most architectures use a more intuitive name
based on the architecture directory name. There are no current
users of TMS320C6X so this patch simply changes CONFIG_TMS320C6X
to the more intuitive CONFIG_C6X.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
---
 arch/c6x/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 1c3ccd416d50..3fc28fbb1cc4 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -3,7 +3,7 @@
 # see Documentation/kbuild/kconfig-language.txt.
 #
 
-config TMS320C6X
+config C6X
 	def_bool y
 	select CLKDEV_LOOKUP
 	select GENERIC_IRQ_SHOW
-- 
cgit 


From 0c4f6d6bd17bbcf165a2439b59b9e8212c19f645 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 3 May 2012 09:02:52 +0000
Subject: c6x: Use generic init_task

Same code. Use the generic version.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-and-tested-by: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20120503085034.412398724@linutronix.de
---
 arch/c6x/Kconfig          |  1 +
 arch/c6x/kernel/process.c | 16 ----------------
 2 files changed, 1 insertion(+), 16 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 1c3ccd416d50..4189fb52d519 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -10,6 +10,7 @@ config TMS320C6X
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
+	select HAVE_GENERIC_INIT_TASK
 	select HAVE_MEMBLOCK
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 7ca8c41b03cd..45e924a636a0 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -26,22 +26,6 @@ void	(*c6x_halt)(void);
 
 extern asmlinkage void ret_from_fork(void);
 
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-
-/*
- * Initial thread structure.
- */
-union thread_union init_thread_union __init_task_data =	{
-	INIT_THREAD_INFO(init_task)
-};
-
-/*
- * Initial task structure.
- */
-struct task_struct init_task = INIT_TASK(init_task);
-EXPORT_SYMBOL(init_task);
-
 /*
  * power off function, if any
  */
-- 
cgit 


From a6359d1eec43d1fd6ffbac958149844873e0084f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 3 May 2012 09:03:02 +0000
Subject: init_task: Replace CONFIG_HAVE_GENERIC_INIT_TASK

Now that all archs except ia64 are converted, replace the config and
let the ia64 select CONFIG_ARCH_INIT_TASK

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20120503085035.867948914@linutronix.de
---
 arch/c6x/Kconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 4189fb52d519..1c3ccd416d50 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -10,7 +10,6 @@ config TMS320C6X
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
-	select HAVE_GENERIC_INIT_TASK
 	select HAVE_MEMBLOCK
 	select SPARSE_IRQ
 	select IRQ_DOMAIN
-- 
cgit 


From 7b8fe0570a65486e77823d5fcec9998c2aae9970 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sat, 5 May 2012 15:05:42 +0000
Subject: c6x: Use common threadinfo allocator

There is no functional difference. __get_free_pages() ends up calling
alloc_pages_node().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20120505150141.621728944@linutronix.de
---
 arch/c6x/include/asm/thread_info.h | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
index fd99148cda9d..1710bcbb8d09 100644
--- a/arch/c6x/include/asm/thread_info.h
+++ b/arch/c6x/include/asm/thread_info.h
@@ -20,11 +20,11 @@
 #ifdef CONFIG_4KSTACKS
 #define THREAD_SIZE		4096
 #define THREAD_SHIFT		12
-#define THREAD_ORDER		0
+#define THREAD_SIZE_ORDER	0
 #else
 #define THREAD_SIZE		8192
 #define THREAD_SHIFT		13
-#define THREAD_ORDER		1
+#define THREAD_SIZE_ORDER	1
 #endif
 
 #define THREAD_START_SP		(THREAD_SIZE - 8)
@@ -80,19 +80,6 @@ struct thread_info *current_thread_info(void)
 	return ti;
 }
 
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
-/* thread information allocation */
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
-#else
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK)
-#endif
-
-#define alloc_thread_info_node(tsk, node)	\
-	((struct thread_info *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER))
-
-#define free_thread_info(ti)	free_pages((unsigned long) (ti), THREAD_ORDER)
 #define get_thread_info(ti)	get_task_struct((ti)->task)
 #define put_thread_info(ti)	put_task_struct((ti)->task)
 #endif /* __ASSEMBLY__ */
-- 
cgit 


From fce244762775f662f5a278a05a6e494b6e4f2774 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 23 Apr 2012 10:02:08 -0400
Subject: C6X: add support to build with BINFMT_ELF_FDPIC

C6x userspace supports a shared library mechanism called DSBT for systems with
no MMU. DSBT is similar to FDPIC in allowing shared text segments and private
copies of data segments without an MMU. Both methods access data using a base
register and offset. With FDPIC, the caller of an external function sets up the
base register for the callee. With DSBT, the called function sets up its own
base register. Other details differ but both userspaces need the same thing
from the kernel loader: a map of where each ELF segment was loaded. The FDPIC
loader already provides this, so DSBT just uses it.

This patch enables BINFMT_ELF_FDPIC by default for C6X and provides the
necessary architecture hooks for the generic loader.

Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/include/asm/elf.h    | 14 +++++++++++++-
 arch/c6x/include/asm/mmu.h    |  4 ++++
 arch/c6x/include/asm/ptrace.h |  5 +++++
 3 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/include/asm/elf.h b/arch/c6x/include/asm/elf.h
index d57865ba2c44..f4552db20b4a 100644
--- a/arch/c6x/include/asm/elf.h
+++ b/arch/c6x/include/asm/elf.h
@@ -30,7 +30,19 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  */
 #define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)
 
-#define elf_check_const_displacement(x) (1)
+#define elf_check_fdpic(x) (1)
+#define elf_check_const_displacement(x) (0)
+
+#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \
+do {								\
+	_regs->b4	= (_exec_map);				\
+	_regs->a6	= (_interp_map);			\
+	_regs->b6	= (_dynamic_addr);			\
+} while (0)
+
+#define ELF_FDPIC_CORE_EFLAGS	0
+
+#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */
 
 /*
  * These are used to set parameters in the core dumps.
diff --git a/arch/c6x/include/asm/mmu.h b/arch/c6x/include/asm/mmu.h
index 41592bf16067..4467e770a1ce 100644
--- a/arch/c6x/include/asm/mmu.h
+++ b/arch/c6x/include/asm/mmu.h
@@ -13,6 +13,10 @@
 
 typedef struct {
 	unsigned long		end_brk;
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+	unsigned long	exec_fdpic_loadmap;
+	unsigned long	interp_fdpic_loadmap;
+#endif
 } mm_context_t;
 
 #endif /* _ASM_C6X_MMU_H */
diff --git a/arch/c6x/include/asm/ptrace.h b/arch/c6x/include/asm/ptrace.h
index 21e8d7931fe7..b04ff5964258 100644
--- a/arch/c6x/include/asm/ptrace.h
+++ b/arch/c6x/include/asm/ptrace.h
@@ -97,6 +97,11 @@
 #define PT_DP	   PT_B14  /* Data Segment Pointer (B14) */
 #define PT_SP	   PT_B15  /* Stack Pointer (B15)  */
 
+#define PTRACE_GETFDPIC		31	/* get the ELF fdpic loadmap address */
+
+#define PTRACE_GETFDPIC_EXEC	0	/* [addr] request the executable loadmap */
+#define PTRACE_GETFDPIC_INTERP	1	/* [addr] request the interpreter loadmap */
+
 #ifndef __ASSEMBLY__
 
 #ifdef _BIG_ENDIAN
-- 
cgit 


From 55ccf3fe3f9a3441731aa79cf42a628fc4ecace9 Mon Sep 17 00:00:00 2001
From: Suresh Siddha <suresh.b.siddha@intel.com>
Date: Wed, 16 May 2012 15:03:51 -0700
Subject: fork: move the real prepare_to_copy() users to arch_dup_task_struct()

Historical prepare_to_copy() is mostly a no-op, duplicated for majority of
the architectures and the rest following the x86 model of flushing the extended
register state like fpu there.

Remove it and use the arch_dup_task_struct() instead.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/c6x/include/asm/processor.h | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 3ff7fab956ba..c50af7ef1c96 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -92,9 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk)	do { } while (0)
-
 extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 
 #define copy_segments(tsk, mm)		do { } while (0)
-- 
cgit 


From 8ff98b9c993d59d6b396a42266c6d323c8f28cec Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Tue, 15 May 2012 10:14:19 -0400
Subject: C6X: remove unused config items

Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/Kconfig | 12 ------------
 1 file changed, 12 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 3fc28fbb1cc4..1f15b88b537f 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -19,24 +19,12 @@ config C6X
 config MMU
 	def_bool n
 
-config ZONE_DMA
-	def_bool y
-
 config FPU
 	def_bool n
 
-config HIGHMEM
-	def_bool n
-
-config NUMA
-	def_bool n
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
-config RWSEM_XCHGADD_ALGORITHM
-	def_bool n
-
 config GENERIC_CALIBRATE_DELAY
 	def_bool y
 
-- 
cgit 


From 6220443db41899606a8621215e0f6e99477f7152 Mon Sep 17 00:00:00 2001
From: Anna-Maria Gleixner <anna-maria@glx-um.de>
Date: Fri, 18 May 2012 16:45:46 +0000
Subject: c6x: Use generic time config

Signed-off-by: Anna-Maria Gleixner <anna-maria@glx-um.de>
Acked-by: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20120518163105.156595383@glx-um.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/c6x/Kconfig | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 1c3ccd416d50..30c04c658b9e 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -15,6 +15,7 @@ config TMS320C6X
 	select IRQ_DOMAIN
 	select OF
 	select OF_EARLY_FLATTREE
+	select GENERIC_CLOCKEVENTS
 
 config MMU
 	def_bool n
@@ -43,12 +44,6 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_CLOCKEVENTS
-	def_bool y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
-	bool
-
 config GENERIC_BUG
 	def_bool y
 
-- 
cgit 


From 764e0da14fd7ac2d259d98d34ece0a87d32306c9 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 21 May 2012 23:16:18 +0200
Subject: timers: Fixup the Kconfig consolidation fallout

Sigh, I missed to check which architecture Kconfig files actually
include the core Kconfig file. There are a few which did not. So we
broke them.

Instead of adding the includes to those, we are better off to move the
include to init/Kconfig like we did already with irqs and others.

This does not change anything for the architectures using the old
style periodic timer mode. It just solves the build wreckage there.

For those architectures which use the clock events infrastructure it
moves the include of the core Kconfig file to "General setup" which is
a way more logical place than having it at random locations specified
by the architecture specific Kconfigs.

Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Anna-Maria Gleixner <anna-maria@glx-um.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/c6x/Kconfig | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 30c04c658b9e..9d446eff2c04 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -132,7 +132,6 @@ source "mm/Kconfig"
 source "kernel/Kconfig.preempt"
 
 source "kernel/Kconfig.hz"
-source "kernel/time/Kconfig"
 
 endmenu
 
-- 
cgit 


From 2a3fdc117cdd664814d7374941698729e47fea95 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 22 Apr 2012 03:30:18 -0400
Subject: c6x: ->restart_block.fn needs to be reset on rt_sigreturn

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 3b5a05099989..cf37478c1169 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -69,6 +69,9 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
 	struct rt_sigframe __user *frame;
 	sigset_t set;
 
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
 	/*
 	 * Since we stacked the signal on a dword boundary,
 	 * 'sp' should be dword aligned here.  If it's
-- 
cgit 


From a42c6ded827dbd396d2efde7530620be029a72d1 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 23 May 2012 14:44:37 -0400
Subject: move key_repace_session_keyring() into tracehook_notify_resume()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index cf37478c1169..9493f0bbf0a6 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -364,7 +364,5 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags,
 	if (thread_info_flags & (1 << TIF_NOTIFY_RESUME)) {
 		clear_thread_flag(TIF_NOTIFY_RESUME);
 		tracehook_notify_resume(regs);
-		if (current->replacement_session_keyring)
-			key_replace_session_keyring();
 	}
 }
-- 
cgit 


From 51a7b448d4134e3e8eec633435e3e8faee14a828 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 21 May 2012 23:33:55 -0400
Subject: new helper: restore_saved_sigmask()

first fruits of ..._restore_sigmask() helpers: now we can take
boilerplate "signal didn't have a handler, clear RESTORE_SIGMASK
and restore the blocked mask from ->saved_mask" into a common
helper.  Open-coded instances switched...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 9493f0bbf0a6..bfbcc958bbb4 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -343,10 +343,7 @@ static void do_signal(struct pt_regs *regs, int syscall)
 
 	/* if there's no signal to deliver, we just put the saved sigmask
 	 * back */
-	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-		clear_thread_flag(TIF_RESTORE_SIGMASK);
-		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-	}
+	restore_saved_sigmask();
 }
 
 /*
-- 
cgit 


From b7f9a11a6cf1ea9ee6be3eb2b90d91327a09ad14 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 2 May 2012 09:59:21 -0400
Subject: new helper: sigmask_to_save()

replace boilerplate "should we use ->saved_sigmask or ->blocked?"
with calls of obvious inlined helper...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index bfbcc958bbb4..38bb501eb117 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -250,8 +250,7 @@ do_restart:
  */
 static int handle_signal(int sig,
 			 siginfo_t *info, struct k_sigaction *ka,
-			 sigset_t *oldset, struct pt_regs *regs,
-			 int syscall)
+			 struct pt_regs *regs, int syscall)
 {
 	int ret;
 
@@ -278,7 +277,7 @@ static int handle_signal(int sig,
 	}
 
 	/* Set up the stack frame */
-	ret = setup_rt_frame(sig, ka, info, oldset, regs);
+	ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
 	if (ret == 0)
 		block_sigmask(ka, sig);
 
@@ -292,7 +291,6 @@ static void do_signal(struct pt_regs *regs, int syscall)
 {
 	struct k_sigaction ka;
 	siginfo_t info;
-	sigset_t *oldset;
 	int signr;
 
 	/* we want the common case to go fast, which is why we may in certain
@@ -300,15 +298,9 @@ static void do_signal(struct pt_regs *regs, int syscall)
 	if (!user_mode(regs))
 		return;
 
-	if (test_thread_flag(TIF_RESTORE_SIGMASK))
-		oldset = &current->saved_sigmask;
-	else
-		oldset = &current->blocked;
-
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 	if (signr > 0) {
-		if (handle_signal(signr, &info, &ka, oldset,
-				  regs, syscall) == 0) {
+		if (handle_signal(signr, &info, &ka, regs, syscall) == 0) {
 			/* a signal was successfully delivered; the saved
 			 * sigmask will have been stored in the signal frame,
 			 * and will be restored by sigreturn, so we can simply
-- 
cgit 


From a610d6e672d6d3723e8da257ad4a8a288a8f2f89 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 21 May 2012 23:42:15 -0400
Subject: pull clearing RESTORE_SIGMASK into block_sigmask()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 38bb501eb117..f39346f1f2d6 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -248,7 +248,7 @@ do_restart:
 /*
  * handle the actual delivery of a signal to userspace
  */
-static int handle_signal(int sig,
+static void handle_signal(int sig,
 			 siginfo_t *info, struct k_sigaction *ka,
 			 struct pt_regs *regs, int syscall)
 {
@@ -277,11 +277,10 @@ static int handle_signal(int sig,
 	}
 
 	/* Set up the stack frame */
-	ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
-	if (ret == 0)
-		block_sigmask(ka, sig);
-
-	return ret;
+	if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
+		return;
+	block_sigmask(ka, sig);
+	tracehook_signal_handler(sig, info, ka, regs, 0);
 }
 
 /*
@@ -300,17 +299,7 @@ static void do_signal(struct pt_regs *regs, int syscall)
 
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 	if (signr > 0) {
-		if (handle_signal(signr, &info, &ka, regs, syscall) == 0) {
-			/* a signal was successfully delivered; the saved
-			 * sigmask will have been stored in the signal frame,
-			 * and will be restored by sigreturn, so we can simply
-			 * clear the TIF_RESTORE_SIGMASK flag */
-			if (test_thread_flag(TIF_RESTORE_SIGMASK))
-				clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-			tracehook_signal_handler(signr, &info, &ka, regs, 0);
-		}
-
+		handle_signal(signr, &info, &ka, regs, syscall);
 		return;
 	}
 
-- 
cgit 


From 6fd84c0831ec78d98736b76dc5e9b849f1dbfc9e Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 23 May 2012 15:28:58 -0400
Subject: TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index f39346f1f2d6..d599a7fb5d24 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -335,8 +335,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags,
 				 int syscall)
 {
 	/* deal with pending signal delivery */
-	if (thread_info_flags & ((1 << TIF_SIGPENDING) |
-				 (1 << TIF_RESTORE_SIGMASK)))
+	if (thread_info_flags & (1 << TIF_SIGPENDING))
 		do_signal(regs, syscall);
 
 	if (thread_info_flags & (1 << TIF_NOTIFY_RESUME)) {
-- 
cgit 


From 77097ae503b170120ab66dd1d547f8577193f91f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 27 Apr 2012 13:58:59 -0400
Subject: most of set_current_blocked() callers want SIGKILL/SIGSTOP removed
 from set

Only 3 out of 63 do not.  Renamed the current variant to __set_current_blocked(),
added set_current_blocked() that will exclude unblockable signals, switched
open-coded instances to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index d599a7fb5d24..eb1b3086ae00 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -20,8 +20,6 @@
 #include <asm/cacheflush.h>
 
 
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
 /*
  * Do a signal return, undo the signal stack.
  */
@@ -87,7 +85,6 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
 		goto badframe;
 
-	sigdelsetmask(&set, ~_BLOCKABLE);
 	set_current_blocked(&set);
 
 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
-- 
cgit 


From efee984c27b67e3ebef40410f35671997441b57c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Apr 2012 02:04:15 -0400
Subject: new helper: signal_delivered()

Does block_sigmask() + tracehook_signal_handler();  called when
sigframe has been successfully built.  All architectures converted
to it; block_sigmask() itself is gone now (merged into this one).

I'm still not too happy with the signature, but that's a separate
story (IMO we need a structure that would contain signal number +
siginfo + k_sigaction, so that get_signal_to_deliver() would fill one,
signal_delivered(), handle_signal() and probably setup...frame() -
take one).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/c6x/kernel/signal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index eb1b3086ae00..3d8f3c22a94f 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -276,8 +276,7 @@ static void handle_signal(int sig,
 	/* Set up the stack frame */
 	if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
 		return;
-	block_sigmask(ka, sig);
-	tracehook_signal_handler(sig, info, ka, regs, 0);
+	signal_delivered(sig, info, ka, regs, 0);
 }
 
 /*
-- 
cgit 


From 6e5928f6dfd92a47c489bb735c4cb8bbb62038e0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 12 Jul 2012 22:33:12 -0700
Subject: arch: Use eth_random_addr

Convert the existing uses of random_ether_addr to
the new eth_random_addr.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/c6x/kernel/soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/soc.c b/arch/c6x/kernel/soc.c
index 0748c94ebef6..3ac74080fded 100644
--- a/arch/c6x/kernel/soc.c
+++ b/arch/c6x/kernel/soc.c
@@ -80,7 +80,7 @@ int soc_mac_addr(unsigned int index, u8 *addr)
 		if (have_fuse_mac)
 			memcpy(addr, c6x_fuse_mac, 6);
 		else
-			random_ether_addr(addr);
+			eth_random_addr(addr);
 	}
 
 	/* adjust for specific EMAC device */
-- 
cgit 


From b3f89562100ad7d8deecc5a97ac74db7708c1bba Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Wed, 18 Jul 2012 21:11:59 -0400
Subject: C6X: remove megamod-pic requirement on direct-mapped core pic

The megamodule PIC cascades a number of interrupt sources into the core
priority PIC. The megamodule code depends on the core hardware interrupt
numbers being mapped one-to-one with regard to linux interrupt numbers.
This patch removes that dependence in order to pave the way for removing
the direct mapping in the core PIC code.

Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/platforms/megamod-pic.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/platforms/megamod-pic.c b/arch/c6x/platforms/megamod-pic.c
index c1c4e2ae3f85..74e3371eb824 100644
--- a/arch/c6x/platforms/megamod-pic.c
+++ b/arch/c6x/platforms/megamod-pic.c
@@ -243,27 +243,37 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
 	 * as their interrupt parent.
 	 */
 	for (i = 0; i < NR_COMBINERS; i++) {
+		struct irq_data *irq_data;
+		irq_hw_number_t hwirq;
 
 		irq = irq_of_parse_and_map(np, i);
 		if (irq == NO_IRQ)
 			continue;
 
+		irq_data = irq_get_irq_data(irq);
+		if (!irq_data) {
+			pr_err("%s: combiner-%d no irq_data for virq %d!\n",
+			       np->full_name, i, irq);
+			continue;
+		}
+
+		hwirq = irq_data->hwirq;
+
 		/*
-		 * We count on the core priority interrupts (4 - 15) being
-		 * direct mapped. Check that device tree provided something
-		 * in that range.
+		 * Check that device tree provided something in the range
+		 * of the core priority interrupts (4 - 15).
 		 */
-		if (irq < 4 || irq >= NR_PRIORITY_IRQS) {
-			pr_err("%s: combiner-%d virq %d out of range!\n",
-				 np->full_name, i, irq);
+		if (hwirq < 4 || hwirq >= NR_PRIORITY_IRQS) {
+			pr_err("%s: combiner-%d core irq %ld out of range!\n",
+			       np->full_name, i, hwirq);
 			continue;
 		}
 
 		/* record the mapping */
-		mapping[irq - 4] = i;
+		mapping[hwirq - 4] = i;
 
-		pr_debug("%s: combiner-%d cascading to virq %d\n",
-			 np->full_name, i, irq);
+		pr_debug("%s: combiner-%d cascading to hwirq %ld\n",
+			 np->full_name, i, hwirq);
 
 		cascade_data[i].pic = pic;
 		cascade_data[i].index = i;
-- 
cgit 


From f84f1f462bfaf0e45511f97ef54068b8539a7af6 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Wed, 18 Jul 2012 23:49:40 -0400
Subject: C6X: remove dependence on legacy IRQs

The core priority PIC code uses legacy irq support to facilitate direct
mapping of core hw interrupt numbers to linux interrupt numbers. This
patch removes the legacy irq usage and replaces it with a generic linear
mapping.

Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/include/asm/irq.h |  2 --
 arch/c6x/kernel/irq.c      | 21 ++++++++++-----------
 2 files changed, 10 insertions(+), 13 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/include/asm/irq.h b/arch/c6x/include/asm/irq.h
index ab4577f93d96..1324e62bd4ef 100644
--- a/arch/c6x/include/asm/irq.h
+++ b/arch/c6x/include/asm/irq.h
@@ -34,8 +34,6 @@
  */
 #define NR_PRIORITY_IRQS 16
 
-#define NR_IRQS_LEGACY	NR_PRIORITY_IRQS
-
 /* Total number of virq in the platform */
 #define NR_IRQS		256
 
diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
index c90fb5e82ad7..247e0eb5e467 100644
--- a/arch/c6x/kernel/irq.c
+++ b/arch/c6x/kernel/irq.c
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Copyright (C) 2011-2012 Texas Instruments Incorporated
  *
  *  This borrows heavily from powerpc version, which is:
  *
@@ -35,9 +35,7 @@ static DEFINE_RAW_SPINLOCK(core_irq_lock);
 
 static void mask_core_irq(struct irq_data *data)
 {
-	unsigned int prio = data->irq;
-
-	BUG_ON(prio < 4 || prio >= NR_PRIORITY_IRQS);
+	unsigned int prio = data->hwirq;
 
 	raw_spin_lock(&core_irq_lock);
 	and_creg(IER, ~(1 << prio));
@@ -46,7 +44,7 @@ static void mask_core_irq(struct irq_data *data)
 
 static void unmask_core_irq(struct irq_data *data)
 {
-	unsigned int prio = data->irq;
+	unsigned int prio = data->hwirq;
 
 	raw_spin_lock(&core_irq_lock);
 	or_creg(IER, 1 << prio);
@@ -59,15 +57,15 @@ static struct irq_chip core_chip = {
 	.irq_unmask	= unmask_core_irq,
 };
 
+static int prio_to_virq[NR_PRIORITY_IRQS];
+
 asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
 
 	irq_enter();
 
-	BUG_ON(prio < 4 || prio >= NR_PRIORITY_IRQS);
-
-	generic_handle_irq(prio);
+	generic_handle_irq(prio_to_virq[prio]);
 
 	irq_exit();
 
@@ -82,6 +80,8 @@ static int core_domain_map(struct irq_domain *h, unsigned int virq,
 	if (hw < 4 || hw >= NR_PRIORITY_IRQS)
 		return -EINVAL;
 
+	prio_to_virq[hw] = virq;
+
 	irq_set_status_flags(virq, IRQ_LEVEL);
 	irq_set_chip_and_handler(virq, &core_chip, handle_level_irq);
 	return 0;
@@ -102,9 +102,8 @@ void __init init_IRQ(void)
 	np = of_find_compatible_node(NULL, NULL, "ti,c64x+core-pic");
 	if (np != NULL) {
 		/* create the core host */
-		core_domain = irq_domain_add_legacy(np, NR_PRIORITY_IRQS,
-						    0, 0, &core_domain_ops,
-						    NULL);
+		core_domain = irq_domain_add_linear(np, NR_PRIORITY_IRQS,
+						    &core_domain_ops, NULL);
 		if (core_domain)
 			irq_set_default_host(core_domain);
 		of_node_put(np);
-- 
cgit 


From dbe91a2e6e53aa85efa0aac86e3a22ba95f8b85f Mon Sep 17 00:00:00 2001
From: Ken Cox <jkc@redhat.com>
Date: Wed, 18 Jul 2012 23:19:10 -0400
Subject: C6X: add basic support for TMS320C6678 SoC

This patch adds support for the TMS320C6678 SoC on an EVMC6678LE
evaluation board. The 6678 is a C66x family CPU which is very similar
to the already supported C64x CPUs with the addition of floating point
instructions.

Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Aurelien Jacquiot <a-jacquiot@ti.com>
CC: linux-c6x-dev@linux-c6x.org
---
 arch/c6x/boot/dts/evmc6678.dts      |  83 ++++++++++++++++++++
 arch/c6x/boot/dts/tms320c6678.dtsi  | 146 ++++++++++++++++++++++++++++++++++++
 arch/c6x/configs/evmc6678_defconfig |  42 +++++++++++
 arch/c6x/kernel/setup.c             |   4 +
 arch/c6x/platforms/Kconfig          |   4 +
 arch/c6x/platforms/plldata.c        |  65 ++++++++++++++++
 6 files changed, 344 insertions(+)
 create mode 100644 arch/c6x/boot/dts/evmc6678.dts
 create mode 100644 arch/c6x/boot/dts/tms320c6678.dtsi
 create mode 100644 arch/c6x/configs/evmc6678_defconfig

(limited to 'arch/c6x')

diff --git a/arch/c6x/boot/dts/evmc6678.dts b/arch/c6x/boot/dts/evmc6678.dts
new file mode 100644
index 000000000000..ab686301d321
--- /dev/null
+++ b/arch/c6x/boot/dts/evmc6678.dts
@@ -0,0 +1,83 @@
+/*
+ * arch/c6x/boot/dts/evmc6678.dts
+ *
+ * EVMC6678 Evaluation Platform For TMS320C6678
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated
+ *
+ * Author: Ken Cox <jkc@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/include/ "tms320c6678.dtsi"
+
+/ {
+	model = "Advantech EVMC6678";
+	compatible = "advantech,evmc6678";
+
+	chosen {
+		bootargs = "root=/dev/nfs ip=dhcp rw";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	soc {
+		megamod_pic: interrupt-controller@1800000 {
+		       interrupts = < 12 13 14 15 >;
+		};
+
+		timer8: timer@2280000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 66 >;
+		};
+
+		timer9: timer@2290000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 68 >;
+		};
+
+		timer10: timer@22A0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 70 >;
+		};
+
+		timer11: timer@22B0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 72 >;
+		};
+
+		timer12: timer@22C0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 74 >;
+		};
+
+		timer13: timer@22D0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 76 >;
+		};
+
+		timer14: timer@22E0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 78 >;
+		};
+
+		timer15: timer@22F0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 80 >;
+		};
+
+		clock-controller@2310000 {
+			clock-frequency = <100000000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/tms320c6678.dtsi b/arch/c6x/boot/dts/tms320c6678.dtsi
new file mode 100644
index 000000000000..386196e5eae7
--- /dev/null
+++ b/arch/c6x/boot/dts/tms320c6678.dtsi
@@ -0,0 +1,146 @@
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			reg = <0>;
+			model = "ti,c66x";
+		};
+		cpu@1 {
+			device_type = "cpu";
+			reg = <1>;
+			model = "ti,c66x";
+		};
+		cpu@2 {
+			device_type = "cpu";
+			reg = <2>;
+			model = "ti,c66x";
+		};
+		cpu@3 {
+			device_type = "cpu";
+			reg = <3>;
+			model = "ti,c66x";
+		};
+		cpu@4 {
+			device_type = "cpu";
+			reg = <4>;
+			model = "ti,c66x";
+		};
+		cpu@5 {
+			device_type = "cpu";
+			reg = <5>;
+			model = "ti,c66x";
+		};
+		cpu@6 {
+			device_type = "cpu";
+			reg = <6>;
+			model = "ti,c66x";
+		};
+		cpu@7 {
+			device_type = "cpu";
+			reg = <7>;
+			model = "ti,c66x";
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6678";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		core_pic: interrupt-controller {
+			compatible = "ti,c64x+core-pic";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		megamod_pic: interrupt-controller@1800000 {
+		       compatible = "ti,c64x+megamod-pic";
+		       interrupt-controller;
+		       #interrupt-cells = <1>;
+		       reg = <0x1800000 0x1000>;
+		       interrupt-parent = <&core_pic>;
+		};
+
+		cache-controller@1840000 {
+			compatible = "ti,c64x+cache";
+			reg = <0x01840000 0x8400>;
+		};
+
+		timer8: timer@2280000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x01 >;
+			reg = <0x2280000 0x40>;
+		};
+
+		timer9: timer@2290000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x02 >;
+			reg = <0x2290000 0x40>;
+		};
+
+		timer10: timer@22A0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x04 >;
+			reg = <0x22A0000 0x40>;
+		};
+
+		timer11: timer@22B0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x08 >;
+			reg = <0x22B0000 0x40>;
+		};
+
+		timer12: timer@22C0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x10 >;
+			reg = <0x22C0000 0x40>;
+		};
+
+		timer13: timer@22D0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x20 >;
+			reg = <0x22D0000 0x40>;
+		};
+
+		timer14: timer@22E0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x40 >;
+			reg = <0x22E0000 0x40>;
+		};
+
+		timer15: timer@22F0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x80 >;
+			reg = <0x22F0000 0x40>;
+		};
+
+		clock-controller@2310000 {
+			compatible = "ti,c6678-pll", "ti,c64x+pll";
+			reg = <0x02310000 0x200>;
+			ti,c64x+pll-bypass-delay = <200>;
+			ti,c64x+pll-reset-delay = <12000>;
+			ti,c64x+pll-lock-delay = <80000>;
+		};
+
+		device-state-controller@2620000 {
+			compatible = "ti,c64x+dscr";
+			reg = <0x02620000 0x1000>;
+
+			ti,dscr-devstat = <0x20>;
+			ti,dscr-silicon-rev = <0x18 28 0xf>;
+
+			ti,dscr-mac-fuse-regs = <0x110 1 2 3 4
+						 0x114 5 6 0 0>;
+
+		};
+	};
+};
diff --git a/arch/c6x/configs/evmc6678_defconfig b/arch/c6x/configs/evmc6678_defconfig
new file mode 100644
index 000000000000..5f126d4905b1
--- /dev/null
+++ b/arch/c6x/configs/evmc6678_defconfig
@@ -0,0 +1,42 @@
+CONFIG_SOC_TMS320C6678=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_BOARD_EVM6678=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index ce46186600c5..f4e72bd8c103 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -143,6 +143,10 @@ static void __init get_cpuinfo(void)
 		p->cpu_name = "C64x+";
 		p->cpu_voltage = "1.2";
 		break;
+	case 21:
+		p->cpu_name = "C66X";
+		p->cpu_voltage = "1.2";
+		break;
 	default:
 		p->cpu_name = "unknown";
 		break;
diff --git a/arch/c6x/platforms/Kconfig b/arch/c6x/platforms/Kconfig
index 401ee678fd01..c4a0fad89aaf 100644
--- a/arch/c6x/platforms/Kconfig
+++ b/arch/c6x/platforms/Kconfig
@@ -14,3 +14,7 @@ config SOC_TMS320C6472
 config SOC_TMS320C6474
 	bool "TMS320C6474"
 	default n
+
+config SOC_TMS320C6678
+	bool "TMS320C6678"
+	default n
diff --git a/arch/c6x/platforms/plldata.c b/arch/c6x/platforms/plldata.c
index 2cfd6f42968f..755359eb6286 100644
--- a/arch/c6x/platforms/plldata.c
+++ b/arch/c6x/platforms/plldata.c
@@ -335,6 +335,68 @@ static void __init c6474_setup_clocks(struct device_node *node)
 }
 #endif /* CONFIG_SOC_TMS320C6474 */
 
+#ifdef CONFIG_SOC_TMS320C6678
+static struct clk_lookup c6678_clks[] = {
+	CLK(NULL, "pll1", &c6x_soc_pll1.sysclks[0]),
+	CLK(NULL, "pll1_refclk", &c6x_soc_pll1.sysclks[1]),
+	CLK(NULL, "pll1_sysclk2", &c6x_soc_pll1.sysclks[2]),
+	CLK(NULL, "pll1_sysclk3", &c6x_soc_pll1.sysclks[3]),
+	CLK(NULL, "pll1_sysclk4", &c6x_soc_pll1.sysclks[4]),
+	CLK(NULL, "pll1_sysclk5", &c6x_soc_pll1.sysclks[5]),
+	CLK(NULL, "pll1_sysclk6", &c6x_soc_pll1.sysclks[6]),
+	CLK(NULL, "pll1_sysclk7", &c6x_soc_pll1.sysclks[7]),
+	CLK(NULL, "pll1_sysclk8", &c6x_soc_pll1.sysclks[8]),
+	CLK(NULL, "pll1_sysclk9", &c6x_soc_pll1.sysclks[9]),
+	CLK(NULL, "pll1_sysclk10", &c6x_soc_pll1.sysclks[10]),
+	CLK(NULL, "pll1_sysclk11", &c6x_soc_pll1.sysclks[11]),
+	CLK(NULL, "core", &c6x_core_clk),
+	CLK("", NULL, NULL)
+};
+
+static void __init c6678_setup_clocks(struct device_node *node)
+{
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct clk *sysclks = pll->sysclks;
+
+	pll->flags = PLL_HAS_MUL;
+
+	sysclks[1].flags |= FIXED_DIV_PLL;
+	sysclks[1].div = 1;
+
+	sysclks[2].div = PLLDIV2;
+
+	sysclks[3].flags |= FIXED_DIV_PLL;
+	sysclks[3].div = 2;
+
+	sysclks[4].flags |= FIXED_DIV_PLL;
+	sysclks[4].div = 3;
+
+	sysclks[5].div = PLLDIV5;
+
+	sysclks[6].flags |= FIXED_DIV_PLL;
+	sysclks[6].div = 64;
+
+	sysclks[7].flags |= FIXED_DIV_PLL;
+	sysclks[7].div = 6;
+
+	sysclks[8].div = PLLDIV8;
+
+	sysclks[9].flags |= FIXED_DIV_PLL;
+	sysclks[9].div = 12;
+
+	sysclks[10].flags |= FIXED_DIV_PLL;
+	sysclks[10].div = 3;
+
+	sysclks[11].flags |= FIXED_DIV_PLL;
+	sysclks[11].div = 6;
+
+	c6x_core_clk.parent = &sysclks[0];
+	c6x_i2c_clk.parent = &sysclks[7];
+
+	c6x_clks_init(c6678_clks);
+}
+#endif /* CONFIG_SOC_TMS320C6678 */
+
 static struct of_device_id c6x_clkc_match[] __initdata = {
 #ifdef CONFIG_SOC_TMS320C6455
 	{ .compatible = "ti,c6455-pll", .data = c6455_setup_clocks },
@@ -347,6 +409,9 @@ static struct of_device_id c6x_clkc_match[] __initdata = {
 #endif
 #ifdef CONFIG_SOC_TMS320C6474
 	{ .compatible = "ti,c6474-pll", .data = c6474_setup_clocks },
+#endif
+#ifdef CONFIG_SOC_TMS320C6678
+	{ .compatible = "ti,c6678-pll", .data = c6678_setup_clocks },
 #endif
 	{ .compatible = "ti,c64x+pll" },
 	{}
-- 
cgit 


From b9b8722d4704137d1c85b8e62364b487cbbe8bf0 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Wed, 18 Jul 2012 23:34:17 -0400
Subject: C6X: clean up compiler warning

commit a610d6e6: pull clearing RESTORE_SIGMASK into block_sigmask()
left behind a compiler warning:

  arch/c6x/kernel/signal.c:252:6: warning: unused variable 'ret'

This patch cleans up the warning by removing the unused variable.

Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/kernel/signal.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch/c6x')

diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 3d8f3c22a94f..3998b24e26f2 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -249,8 +249,6 @@ static void handle_signal(int sig,
 			 siginfo_t *info, struct k_sigaction *ka,
 			 struct pt_regs *regs, int syscall)
 {
-	int ret;
-
 	/* Are we from a system call? */
 	if (syscall) {
 		/* If so, check system call restarting.. */
-- 
cgit