Merge branch 'linus' into tracing/core

Merge reason: tracing/core was on a .30-rc1 base and was missing out on
              on a handful of tracing fixes present in .30-rc5-almost.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

78 files changed, 979 insertions, 16701 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5b50e1ac617..a0d1146a057 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -181,6 +181,10 @@ config SYS_SUPPORTS_APM_EMULATION
 	default y if PMAC_APM_EMU
 	bool
 
+config DTC
+       bool
+       default y
+
 config DEFAULT_UIMAGE
 	bool
 	help
@@ -462,7 +466,7 @@ config PPC_64K_PAGES
 
 config PPC_256K_PAGES
 	bool "256k page size" if 44x
-	depends on !STDBINUTILS && (!SHMEM || BROKEN)
+	depends on !STDBINUTILS
 	help
 	  Make the page size 256k.
 
diff --git a/arch/powerpc/boot/4xx.c b/arch/powerpc/boot/4xx.c
index 5c878436f34..325b310573b 100644
--- a/arch/powerpc/boot/4xx.c
+++ b/arch/powerpc/boot/4xx.c
@@ -158,21 +158,33 @@ void ibm440spe_fixup_memsize(void)
 
 #define DDR_GET_VAL(val, mask, shift)	(((val) >> (shift)) & (mask))
 
-void ibm4xx_denali_fixup_memsize(void)
+/*
+ * Some U-Boot versions set the number of chipselects to two
+ * for Sequoia/Rainier boards while they only have one chipselect
+ * hardwired. Hardcode the number of chipselects to one
+ * for sequioa/rainer board models or read the actual value
+ * from the memory controller register DDR0_10 otherwise.
+ */
+static inline u32 ibm4xx_denali_get_cs(void)
 {
-	u32 val, max_cs, max_col, max_row;
-	u32 cs, col, row, bank, dpath;
-	unsigned long memsize;
+	void *devp;
+	char model[64];
+	u32 val, cs;
 
-	val = SDRAM0_READ(DDR0_02);
-	if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
-		fatal("DDR controller is not initialized\n");
+	devp = finddevice("/");
+	if (!devp)
+		goto read_cs;
 
-	/* get maximum cs col and row values */
-	max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
-	max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
-	max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+	if (getprop(devp, "model", model, sizeof(model)) <= 0)
+		goto read_cs;
 
+	model[sizeof(model)-1] = 0;
+
+	if (!strcmp(model, "amcc,sequoia") ||
+	    !strcmp(model, "amcc,rainier"))
+		return 1;
+
+read_cs:
 	/* get CS value */
 	val = SDRAM0_READ(DDR0_10);
 
@@ -183,7 +195,25 @@ void ibm4xx_denali_fixup_memsize(void)
 			cs++;
 		val = val >> 1;
 	}
+	return cs;
+}
+
+void ibm4xx_denali_fixup_memsize(void)
+{
+	u32 val, max_cs, max_col, max_row;
+	u32 cs, col, row, bank, dpath;
+	unsigned long memsize;
+
+	val = SDRAM0_READ(DDR0_02);
+	if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
+		fatal("DDR controller is not initialized\n");
 
+	/* get maximum cs col and row values */
+	max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
+	max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
+	max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+
+	cs = ibm4xx_denali_get_cs();
 	if (!cs)
 		fatal("No memory installed\n");
 	if (cs > max_cs)
@@ -193,9 +223,9 @@ void ibm4xx_denali_fixup_memsize(void)
 	val = SDRAM0_READ(DDR0_14);
 
 	if (DDR_GET_VAL(val, DDR_REDUC, DDR_REDUC_SHIFT))
-		dpath = 8; /* 64 bits */
-	else
 		dpath = 4; /* 32 bits */
+	else
+		dpath = 8; /* 64 bits */
 
 	/* get address pins (rows) */
  	val = SDRAM0_READ(DDR0_42);
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 4458abb67c5..8da2bf963b5 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -33,7 +33,7 @@ ifeq ($(call cc-option-yn, -fstack-protector),y)
 BOOTCFLAGS	+= -fno-stack-protector
 endif
 
-BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
+BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj)
 
 DTS_FLAGS	?= -p 1024
 
@@ -53,9 +53,14 @@ zliblinuxheader := zlib.h zconf.h zutil.h
 $(addprefix $(obj)/,$(zlib) cuboot-c2k.o gunzip_util.o main.o prpmc2800.o): \
 	$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
 
-src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
+libfdt       := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
+libfdtheader := fdt.h libfdt.h libfdt_internal.h
+
+$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o): \
+	$(addprefix $(obj)/,$(libfdtheader))
+
 src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
-		$(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
+		$(libfdt) libfdt-wrapper.c \
 		ns16550.c serial.c simple_alloc.c div64.S util.S \
 		gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
 		4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
@@ -96,6 +101,12 @@ $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
 $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
 	$(call cmd,copy_zliblinuxheader)
 
+quiet_cmd_copy_libfdt = COPY    $@
+      cmd_copy_libfdt = cp $< $@
+
+$(addprefix $(obj)/,$(libfdt) $(libfdtheader)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
+	$(call cmd,copy_libfdt)
+
 $(obj)/empty.c:
 	@touch $@
 
@@ -103,6 +114,7 @@ $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srct
 	@cp $< $@
 
 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
+		$(libfdt) $(libfdtheader) \
 		empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
 
 quiet_cmd_bootcc = BOOTCC  $@
@@ -114,6 +126,8 @@ quiet_cmd_bootas = BOOTAS  $@
 quiet_cmd_bootar = BOOTAR  $@
       cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
 
+$(obj-libfdt): $(obj)/%.o: $(srctree)/scripts/dtc/libfdt/%.c FORCE
+	$(call if_changed_dep,bootcc)
 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
 	$(Q)mkdir -p $(dir $@)
 	$(call if_changed_dep,bootcc)
@@ -124,7 +138,7 @@ $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
 $(obj)/wrapper.a: $(obj-wlib) FORCE
 	$(call if_changed,bootar)
 
-hostprogs-y	:= addnote addRamDisk hack-coff mktree dtc
+hostprogs-y	:= addnote addRamDisk hack-coff mktree
 
 targets		+= $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
@@ -133,47 +147,10 @@ extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
 dtstree		:= $(srctree)/$(src)/dts
 
 wrapper		:=$(srctree)/$(src)/wrapper
-wrapperbits	:= $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
+wrapperbits	:= $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \
 			$(wrapper) FORCE
 
 #############
-# Bits for building dtc
-# DTC_GENPARSER      := 1    # Uncomment to rebuild flex/bison output
-
-dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
-dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
-dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
-
-# prerequisites on generated files needs to be explicit
-$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
-$(obj)/dtc-src/dtc-lexer.lex.o:  $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
-
-HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
-
-targets += dtc-src/dtc-parser.tab.c
-targets += dtc-src/dtc-lexer.lex.c
-
-clean-files += dtc-src/dtc-parser.tab.h
-
-ifdef DTC_GENPARSER
-BISON = bison
-FLEX = flex
-
-quiet_cmd_bison = BISON   $@
-      cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
-quiet_cmd_flex = FLEX    $@
-      cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
-
-$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
-	$(call if_changed,bison)
-
-$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
-
-$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
-	$(call if_changed,flex)
-endif
-
-#############
 # Bits for building various flavours of zImage
 
 ifneq ($(CROSS32_COMPILE),)
@@ -347,8 +324,10 @@ $(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)
 
 # Rule to build device tree blobs
-$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc
-	$(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts
+DTC = $(objtree)/scripts/dtc/dtc
+
+$(obj)/%.dtb: $(dtstree)/%.dts
+	$(DTC) -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts
 
 # If there isn't a platform selected then just strip the vmlinux.
 ifeq (,$(image-y))
diff --git a/arch/powerpc/boot/dtc-src/Makefile.dtc b/arch/powerpc/boot/dtc-src/Makefile.dtc
deleted file mode 100644
index 6ddf9ecac66..00000000000
--- a/arch/powerpc/boot/dtc-src/Makefile.dtc
+++ /dev/null
@@ -1,9 +0,0 @@
-# Makefile.dtc
-#
-# This is not a complete Makefile of itself.  Instead, it is designed to
-# be easily embeddable into other systems of Makefiles.
-#
-DTC_SRCS = dtc.c flattree.c fstree.c data.c livetree.c treesource.c srcpos.c \
-	checks.c
-DTC_GEN_SRCS = dtc-lexer.lex.c dtc-parser.tab.c
-DTC_OBJS = $(DTC_SRCS:%.c=%.o) $(DTC_GEN_SRCS:%.c=%.o)
diff --git a/arch/powerpc/boot/dtc-src/checks.c b/arch/powerpc/boot/dtc-src/checks.c
deleted file mode 100644
index 95485796f25..00000000000
--- a/arch/powerpc/boot/dtc-src/checks.c
+++ /dev/null
@@ -1,587 +0,0 @@
-/*
- * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2007.
- *
- *
- * 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.
- *
- *  This program is distributed in the hope that 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, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
- *                                                                   USA
- */
-
-#include "dtc.h"
-
-#ifdef TRACE_CHECKS
-#define TRACE(c, ...) \
-	do { \
-		fprintf(stderr, "=== %s: ", (c)->name); \
-		fprintf(stderr, __VA_ARGS__); \
-		fprintf(stderr, "\n"); \
-	} while (0)
-#else
-#define TRACE(c, fmt, ...)	do { } while (0)
-#endif
-
-enum checklevel {
-	IGNORE = 0,
-	WARN = 1,
-	ERROR = 2,
-};
-
-enum checkstatus {
-	UNCHECKED = 0,
-	PREREQ,
-	PASSED,
-	FAILED,
-};
-
-struct check;
-
-typedef void (*tree_check_fn)(struct check *c, struct node *dt);
-typedef void (*node_check_fn)(struct check *c, struct node *dt, struct node *node);
-typedef void (*prop_check_fn)(struct check *c, struct node *dt,
-			      struct node *node, struct property *prop);
-
-struct check {
-	const char *name;
-	tree_check_fn tree_fn;
-	node_check_fn node_fn;
-	prop_check_fn prop_fn;
-	void *data;
-	enum checklevel level;
-	enum checkstatus status;
-	int inprogress;
-	int num_prereqs;
-	struct check **prereq;
-};
-
-#define CHECK(nm, tfn, nfn, pfn, d, lvl, ...) \
-	static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
-	static struct check nm = { \
-		.name = #nm, \
-		.tree_fn = (tfn), \
-		.node_fn = (nfn), \
-		.prop_fn = (pfn), \
-		.data = (d), \
-		.level = (lvl), \
-		.status = UNCHECKED, \
-		.num_prereqs = ARRAY_SIZE(nm##_prereqs), \
-		.prereq = nm##_prereqs, \
-	};
-
-#define TREE_CHECK(nm, d, lvl, ...) \
-	CHECK(nm, check_##nm, NULL, NULL, d, lvl, __VA_ARGS__)
-#define NODE_CHECK(nm, d, lvl, ...) \
-	CHECK(nm, NULL, check_##nm, NULL, d, lvl, __VA_ARGS__)
-#define PROP_CHECK(nm, d, lvl, ...) \
-	CHECK(nm, NULL, NULL, check_##nm, d, lvl, __VA_ARGS__)
-#define BATCH_CHECK(nm, lvl, ...) \
-	CHECK(nm, NULL, NULL, NULL, NULL, lvl, __VA_ARGS__)
-
-#ifdef __GNUC__
-static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
-#endif
-static inline void check_msg(struct check *c, const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-
-	if ((c->level < WARN) || (c->level <= quiet))
-		return; /* Suppress message */
-
-	fprintf(stderr, "%s (%s): ",
-		(c->level == ERROR) ? "ERROR" : "Warning", c->name);
-	vfprintf(stderr, fmt, ap);
-	fprintf(stderr, "\n");
-}
-
-#define FAIL(c, ...) \
-	do { \
-		TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
-		(c)->status = FAILED; \
-		check_msg((c), __VA_ARGS__); \
-	} while (0)
-
-static void check_nodes_props(struct check *c, struct node *dt, struct node *node)
-{
-	struct node *child;
-	struct property *prop;
-
-	TRACE(c, "%s", node->fullpath);
-	if (c->node_fn)
-		c->node_fn(c, dt, node);
-
-	if (c->prop_fn)
-		for_each_property(node, prop) {
-			TRACE(c, "%s\t'%s'", node->fullpath, prop->name);
-			c->prop_fn(c, dt, node, prop);
-		}
-
-	for_each_child(node, child)
-		check_nodes_props(c, dt, child);
-}
-
-static int run_check(struct check *c, struct node *dt)
-{
-	int error = 0;
-	int i;
-
-	assert(!c->inprogress);
-
-	if (c->status != UNCHECKED)
-		goto out;
-
-	c->inprogress = 1;
-
-	for (i = 0; i < c->num_prereqs; i++) {
-		struct check *prq = c->prereq[i];
-		error |= run_check(prq, dt);
-		if (prq->status != PASSED) {
-			c->status = PREREQ;
-			check_msg(c, "Failed prerequisite '%s'",
-				  c->prereq[i]->name);
-		}
-	}
-
-	if (c->status != UNCHECKED)
-		goto out;
-
-	if (c->node_fn || c->prop_fn)
-		check_nodes_props(c, dt, dt);
-
-	if (c->tree_fn)
-		c->tree_fn(c, dt);
-	if (c->status == UNCHECKED)
-		c->status = PASSED;
-
-	TRACE(c, "\tCompleted, status %d", c->status);
-
-out:
-	c->inprogress = 0;
-	if ((c->status != PASSED) && (c->level == ERROR))
-		error = 1;
-	return error;
-}
-
-/*
- * Utility check functions
- */
-
-static void check_is_string(struct check *c, struct node *root,
-			    struct node *node)
-{
-	struct property *prop;
-	char *propname = c->data;
-
-	prop = get_property(node, propname);
-	if (!prop)
-		return; /* Not present, assumed ok */
-
-	if (!data_is_one_string(prop->val))
-		FAIL(c, "\"%s\" property in %s i