Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix mpic_resume on early G5 macs
  powerpc: rtas_flash needs to use rtas_data_buf
  powerpc: Unconditionally enabled irq stacks
  powerpc/kexec: Wait for online/possible CPUs only.
  powerpc: Disable CONFIG_SYSFS_DEPRECATED
  powerpc/boot: Remove addRamdisk.c since it is now unused
  powerpc: Move kdump default base address to 64MB on 64bit
  powerpc: Remove dead CONFIG_HIGHPTE
  powerpc/fsl-booke: Move loadcam_entry back to asm code to fix SMP ftrace
  powerpc/fsl-booke: Fix InstructionTLBError execute permission check

75 files changed, 93 insertions, 514 deletions

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 53696da4518..2d38a50e66b 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -135,13 +135,6 @@ config DEBUGGER
 	depends on KGDB || XMON
 	default y
 
-config IRQSTACKS
-	bool "Use separate kernel stacks when processing interrupts"
-	help
-	  If you say Y here the kernel will use separate kernel stacks
-	  for handling hard and soft interrupts.  This can help avoid
-	  overflowing the process kernel stacks.
-
 config VIRQ_DEBUG
 	bool "Expose hardware/virtual IRQ mapping via debugfs"
 	depends on DEBUG_FS
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index ad0df7d0a64..fae8192c8fc 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -141,7 +141,7 @@ $(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
+hostprogs-y	:= addnote hack-coff mktree
 
 targets		+= $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
diff --git a/arch/powerpc/boot/addRamDisk.c b/arch/powerpc/boot/addRamDisk.c
deleted file mode 100644
index 893f446cbd2..00000000000
--- a/arch/powerpc/boot/addRamDisk.c
+++ /dev/null
@@ -1,311 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <netinet/in.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <elf.h>
-
-#define ElfHeaderSize  (64 * 1024)
-#define ElfPages  (ElfHeaderSize / 4096)
-#define KERNELBASE (0xc000000000000000)
-#define _ALIGN_UP(addr,size)	(((addr)+((size)-1))&(~((size)-1)))
-
-struct addr_range {
-	unsigned long long addr;
-	unsigned long memsize;
-	unsigned long offset;
-};
-
-static int check_elf64(void *p, int size, struct addr_range *r)
-{
-	Elf64_Ehdr *elf64 = p;
-	Elf64_Phdr *elf64ph;
-
-	if (elf64->e_ident[EI_MAG0] != ELFMAG0 ||
-	    elf64->e_ident[EI_MAG1] != ELFMAG1 ||
-	    elf64->e_ident[EI_MAG2] != ELFMAG2 ||
-	    elf64->e_ident[EI_MAG3] != ELFMAG3 ||
-	    elf64->e_ident[EI_CLASS] != ELFCLASS64 ||
-	    elf64->e_ident[EI_DATA] != ELFDATA2MSB ||
-	    elf64->e_type != ET_EXEC || elf64->e_machine != EM_PPC64)
-		return 0;
-
-	if ((elf64->e_phoff + sizeof(Elf64_Phdr)) > size)
-		return 0;
-
-	elf64ph = (Elf64_Phdr *) ((unsigned long)elf64 +
-				  (unsigned long)elf64->e_phoff);
-
-	r->memsize = (unsigned long)elf64ph->p_memsz;
-	r->offset = (unsigned long)elf64ph->p_offset;
-	r->addr = (unsigned long long)elf64ph->p_vaddr;
-
-#ifdef DEBUG
-	printf("PPC64 ELF file, ph:\n");
-	printf("p_type   0x%08x\n", elf64ph->p_type);
-	printf("p_flags  0x%08x\n", elf64ph->p_flags);
-	printf("p_offset 0x%016llx\n", elf64ph->p_offset);
-	printf("p_vaddr  0x%016llx\n", elf64ph->p_vaddr);
-	printf("p_paddr  0x%016llx\n", elf64ph->p_paddr);
-	printf("p_filesz 0x%016llx\n", elf64ph->p_filesz);
-	printf("p_memsz  0x%016llx\n", elf64ph->p_memsz);
-	printf("p_align  0x%016llx\n", elf64ph->p_align);
-	printf("... skipping 0x%08lx bytes of ELF header\n",
-	       (unsigned long)elf64ph->p_offset);
-#endif
-
-	return 64;
-}
-static void get4k(FILE *file, char *buf )
-{
-	unsigned j;
-	unsigned num = fread(buf, 1, 4096, file);
-	for ( j=num; j<4096; ++j )
-		buf[j] = 0;
-}
-
-static void put4k(FILE *file, char *buf )
-{
-	fwrite(buf, 1, 4096, file);
-}
-
-static void death(const char *msg, FILE *fdesc, const char *fname)
-{
-	fprintf(stderr, msg);
-	fclose(fdesc);
-	unlink(fname);
-	exit(1);
-}
-
-int main(int argc, char **argv)
-{
-	char inbuf[4096];
-	struct addr_range vmlinux;
-	FILE *ramDisk;
-	FILE *inputVmlinux;
-	FILE *outputVmlinux;
-
-	char *rd_name, *lx_name, *out_name;
-
-	size_t i;
-	unsigned long ramFileLen;
-	unsigned long ramLen;
-	unsigned long roundR;
-	unsigned long offset_end;
-
-	unsigned long kernelLen;
-	unsigned long actualKernelLen;
-	unsigned long round;
-	unsigned long roundedKernelLen;
-	unsigned long ramStartOffs;
-	unsigned long ramPages;
-	unsigned long roundedKernelPages;
-	unsigned long hvReleaseData;
-	u_int32_t eyeCatcher = 0xc8a5d9c4;
-	unsigned long naca;
-	unsigned long xRamDisk;
-	unsigned long xRamDiskSize;
-	long padPages;
-  
-  
-	if (argc < 2) {
-		fprintf(stderr, "Name of RAM disk file missing.\n");
-		exit(1);
-	}
-	rd_name = argv[1];
-
-	if (argc < 3) {
-		fprintf(stderr, "Name of vmlinux file missing.\n");
-		exit(1);
-	}
-	lx_name = argv[2];
-
-	if (argc < 4) {
-		fprintf(stderr, "Name of vmlinux output file missing.\n");
-		exit(1);
-	}
-	out_name = argv[3];
-
-
-	ramDisk = fopen(rd_name, "r");
-	if ( ! ramDisk ) {
-		fprintf(stderr, "RAM disk file \"%s\" failed to open.\n", rd_name);
-		exit(1);
-	}
-
-	inputVmlinux = fopen(lx_name, "r");
-	if ( ! inputVmlinux ) {
-		fprintf(stderr, "vmlinux file \"%s\" failed to open.\n", lx_name);
-		exit(1);
-	}
-  
-	outputVmlinux = fopen(out_name, "w+");
-	if ( ! outputVmlinux ) {
-		fprintf(stderr, "output vmlinux file \"%s\" failed to open.\n", out_name);
-		exit(1);
-	}
-
-	i = fread(inbuf, 1, sizeof(inbuf), inputVmlinux);
-	if (i != sizeof(inbuf)) {
-		fprintf(stderr, "can not read vmlinux file %s: %u\n", lx_name, i);
-		exit(1);
-	}
-
-	i = check_elf64(inbuf, sizeof(inbuf), &vmlinux);
-	if (i == 0) {
-		fprintf(stderr, "You must have a linux kernel specified as argv[2]\n");
-		exit(1);
-	}
-
-	/* Input Vmlinux file */
-	fseek(inputVmlinux, 0, SEEK_END);
-	kernelLen = ftell(inputVmlinux);
-	fseek(inputVmlinux, 0, SEEK_SET);
-	printf("kernel file size = %lu\n", kernelLen);
-
-	actualKernelLen = kernelLen - ElfHeaderSize;
-
-	printf("actual kernel length (minus ELF header) = %lu\n", actualKernelLen);
-
-	round = actualKernelLen % 4096;
-	roundedKernelLen = actualKernelLen;
-	if ( round )
-		roundedKernelLen += (4096 - round);
-	printf("Vmlinux length rounded up to a 4k multiple = %ld/0x%lx \n", roundedKernelLen, roundedKernelLen);
-	roundedKernelPages = roundedKernelLen / 4096;
-	printf("Vmlinux pages to copy = %ld/0x%lx \n", roundedKernelPages, roundedKernelPages);
-
-	offset_end = _ALIGN_UP(vmlinux.memsize, 4096);
-	/* calc how many pages we need to insert between the vmlinux and the start of the ram disk */
-	padPages = offset_end/4096 - roundedKernelPages;
-
-	/* Check and see if the vmlinux is already larger than _end in System.map */
-	if (padPages < 0) {
-		/* vmlinux is larger than _end - adjust the offset to the start of the embedded ram disk */ 
-		offset_end = roundedKernelLen;
-		printf("vmlinux is larger than _end indicates it needs to be - offset_end = %lx \n", offset_end);
-		padPages = 0;
-		printf("will insert %lx pages between the vmlinux and the start of the ram disk \n", padPages);
-	}
-	else {
-		/* _end is larger than vmlinux - use the offset to _end that we calculated from the system map */
-		printf("vmlinux is smaller than _end indicates is needed - offset_end = %lx \n", offset_end);
-		printf("will insert %lx pages between the vmlinux and the start of the ram disk \n", padPages);
-	}
-
-
-
-	/* Input Ram Disk file */
-	// Set the offset that the ram disk will be started at.
-	ramStartOffs = offset_end;  /* determined from the input vmlinux file and the system map */
-	printf("Ram Disk will start at offset = 0x%lx \n", ramStartOffs);
-  
-	fseek(ramDisk, 0, SEEK_END);
-	ramFileLen = ftell(ramDisk);
-	fseek(ramDisk, 0, SEEK_SET);
-	printf("%s file size = %ld/0x%lx \n", rd_name, ramFileLen, ramFileLen);
-
-	ramLen = ramFileLen;
-
-	roundR = 4096 - (ramLen % 4096);
-	if ( roundR ) {
-		printf("Rounding RAM disk file up to a multiple of 4096, adding %ld/0x%lx \n", roundR, roundR);
-		ramLen += roundR;
-	}
-
-	printf("Rounded RAM disk size is %ld/0x%lx \n", ramLen, ramLen);
-	ramPages = ramLen / 4096;
-	printf("RAM disk pages to copy = %ld/0x%lx\n", ramPages, ramPages);
-
-
-
-  // Copy 64K ELF header
-	for (i=0; i<(ElfPages); ++i) {
-		get4k( inputVmlinux, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-
-	/* Copy the vmlinux (as full pages). */
-	fseek(inputVmlinux, ElfHeaderSize, SEEK_SET);
-	for ( i=0; i<roundedKernelPages; ++i ) {
-		get4k( inputVmlinux, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-  
-	/* Insert pad pages (if appropriate) that are needed between */
-	/* | the end of the vmlinux and the ram disk. */
-	for (i=0; i<padPages; ++i) {
-		memset(inbuf, 0, 4096);
-		put4k(outputVmlinux, inbuf);
-	}
-
-	/* Copy the ram disk (as full pages). */
-	for ( i=0; i<ramPages; ++i ) {
-		get4k( ramDisk, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-
-	/* Close the input files */
-	fclose(ramDisk);
-	fclose(inputVmlinux);
-	/* And flush the written output file */
-	fflush(outputVmlinux);
-
-
-
-	/* Fixup the new vmlinux to contain the ram disk starting offset (xRamDisk) and the ram disk size (xRamDiskSize) */
-	/* fseek to the hvReleaseData pointer */
-	fseek(outputVmlinux, ElfHeaderSize + 0x24, SEEK_SET);
-	if (fread(&hvReleaseData, 4, 1, outputVmlinux) != 1) {
-		death("Could not read hvReleaseData pointer\n", outputVmlinux, out_name);
-	}
-	hvReleaseData = ntohl(hvReleaseData); /* Convert to native int */
-	printf("hvReleaseData is at %08lx\n", hvReleaseData);
-
-	/* fseek to the hvReleaseData */
-	fseek(outputVmlinux, ElfHeaderSize + hvReleaseData, SEEK_SET);
-	if (fread(inbuf, 0x40, 1, outputVmlinux) != 1) {
-		death("Could not read hvReleaseData\n", outputVmlinux, out_name);
-	}
-	/* Check hvReleaseData sanity */
-	if (memcmp(inbuf, &eyeCatcher, 4) != 0) {
-		death("hvReleaseData is invalid\n", outputVmlinux, out_name);
-	}
-	/* Get the naca pointer */
-	naca = ntohl(*((u_int32_t*) &inbuf[0x0C])) - KERNELBASE;
-	printf("Naca is at offset 0x%lx \n", naca);
-
-	/* fseek to the naca */
-	fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
-	if (fread(inbuf, 0x18, 1, outputVmlinux) != 1) {
-		death("Could not read naca\n", outputVmlinux, out_name);
-	}
-	xRamDisk = ntohl(*((u_int32_t *) &inbuf[0x0c]));
-	xRamDiskSize = ntohl(*((u_int32_t *) &inbuf[0x14]));
-	/* Make sure a RAM disk isn't already present */
-	if ((xRamDisk != 0) || (xRamDiskSize != 0)) {
-		death("RAM disk is already attached to this kernel\n", outputVmlinux, out_name);
-	}
-	/* Fill in the values */
-	*((u_int32_t *) &inbuf[0x0c]) = htonl(ramStartOffs);
-	*((u_int32_t *) &inbuf[0x14]) = htonl(ramPages);
-
-	/* Write out the new naca */
-	fflush(outputVmlinux);
-	fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
-	if (fwrite(inbuf, 0x18, 1, outputVmlinux) != 1) {
-		death("Could not write naca\n", outputVmlinux, out_name);
-	}
-	printf("Ram Disk of 0x%lx pages is attached to the kernel at offset 0x%08lx\n",
-	       ramPages, ramStartOffs);
-
-	/* Done */
-	fclose(outputVmlinux);
-	/* Set permission to executable */
-	chmod(out_name, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
-
-	return 0;
-}
-
diff --git a/arch/powerpc/configs/40x/acadia_defconfig b/arch/powerpc/configs/40x/acadia_defconfig
index 8e95f8d227b..4aa17b676a3 100644
--- a/arch/powerpc/configs/40x/acadia_defconfig
+++ b/arch/powerpc/configs/40x/acadia_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/ep405_defconfig b/arch/powerpc/configs/40x/ep405_defconfig
index 918f23fd2b1..9a5f1ab777e 100644
--- a/arch/powerpc/configs/40x/ep405_defconfig
+++ b/arch/powerpc/configs/40x/ep405_defconfig
@@ -98,8 +98,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/hcu4_defconfig b/arch/powerpc/configs/40x/hcu4_defconfig
index f87ef038228..0b452135d1d 100644
--- a/arch/powerpc/configs/40x/hcu4_defconfig
+++ b/arch/powerpc/configs/40x/hcu4_defconfig
@@ -98,8 +98,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/kilauea_defconfig b/arch/powerpc/configs/40x/kilauea_defconfig
index 19fbcb07537..4d2de0bed60 100644
--- a/arch/powerpc/configs/40x/kilauea_defconfig
+++ b/arch/powerpc/configs/40x/kilauea_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/makalu_defconfig b/arch/powerpc/configs/40x/makalu_defconfig
index eb41cd69597..a1f3f505e4a 100644
--- a/arch/powerpc/configs/40x/makalu_defconfig
+++ b/arch/powerpc/configs/40x/makalu_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index 416e79ac071..c7631357714 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -77,8 +77,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/40x/walnut_defconfig b/arch/powerpc/configs/40x/walnut_defconfig
index bfff0eae39d..6597b2f1d1a 100644
--- a/arch/powerpc/configs/40x/walnut_defconfi