Merge tag 'v3.8-rc1' into staging/for_v3.9

Linux 3.8-rc1

* tag 'v3.8-rc1': (10696 commits)
  Linux 3.8-rc1
  Revert "nfsd: warn on odd reply state in nfsd_vfs_read"
  ARM: dts: fix duplicated build target and alphabetical sort out for exynos
  dm stripe: add WRITE SAME support
  dm: remove map_info
  dm snapshot: do not use map_context
  dm thin: dont use map_context
  dm raid1: dont use map_context
  dm flakey: dont use map_context
  dm raid1: rename read_record to bio_record
  dm: move target request nr to dm_target_io
  dm snapshot: use per_bio_data
  dm verity: use per_bio_data
  dm raid1: use per_bio_data
  dm: introduce per_bio_data
  dm kcopyd: add WRITE SAME support to dm_kcopyd_zero
  dm linear: add WRITE SAME support
  dm: add WRITE SAME support
  dm: prepare to support WRITE SAME
  dm ioctl: use kmalloc if possible
  ...

Conflicts:
	MAINTAINERS

1 files changed, 80 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S
new file mode 100644
index 000000000000..72ce709799da
--- /dev/null
+++ b/arch/arm/mach-tegra/sleep-tegra20.S
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2011, Google, Inc.
+ *
+ * Author: Colin Cross <ccross@android.com>
+ *         Gary King <gking@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/assembler.h>
+
+#include "sleep.h"
+#include "flowctrl.h"
+
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP)
+/*
+ * tegra20_hotplug_shutdown(void)
+ *
+ * puts the current cpu in reset
+ * should never return
+ */
+ENTRY(tegra20_hotplug_shutdown)
+	/* Turn off SMP coherency */
+	exit_smp r4, r5
+
+	/* Put this CPU down */
+	cpu_id	r0
+	bl	tegra20_cpu_shutdown
+	mov	pc, lr			@ should never get here
+ENDPROC(tegra20_hotplug_shutdown)
+
+/*
+ * tegra20_cpu_shutdown(int cpu)
+ *
+ * r0 is cpu to reset
+ *
+ * puts the specified CPU in wait-for-event mode on the flow controller
+ * and puts the CPU in reset
+ * can be called on the current cpu or another cpu
+ * if called on the current cpu, does not return
+ * MUST NOT BE CALLED FOR CPU 0.
+ *
+ * corrupts r0-r3, r12
+ */
+ENTRY(tegra20_cpu_shutdown)
+	cmp	r0, #0
+	moveq	pc, lr			@ must not be called for CPU 0
+
+	cpu_to_halt_reg r1, r0
+	ldr	r3, =TEGRA_FLOW_CTRL_VIRT
+	mov	r2, #FLOW_CTRL_WAITEVENT | FLOW_CTRL_JTAG_RESUME
+	str	r2, [r3, r1]		@ put flow controller in wait event mode
+	ldr	r2, [r3, r1]
+	isb
+	dsb
+	movw	r1, 0x1011
+	mov	r1, r1, lsl r0
+	ldr	r3, =TEGRA_CLK_RESET_VIRT
+	str	r1, [r3, #0x340]	@ put slave CPU in reset
+	isb
+	dsb
+	cpu_id	r3
+	cmp	r3, r0
+	beq	.
+	mov	pc, lr
+ENDPROC(tegra20_cpu_shutdown)
+#endif