Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc-merge

arch/powerpc/Kconfig

@@ -300,6 +300,7 @@ config PPC_PMAC64
 	bool
 	depends on PPC_PMAC && POWER4
 	select U3_DART
+	select GENERIC_TBSYNC
 	default y
 
 config PPC_PREP
@@ -314,15 +315,17 @@ config PPC_MAPLE
 	bool "  Maple 970FX Evaluation Board"
 	select U3_DART
 	select MPIC_BROKEN_U3
+	select GENERIC_TBSYNC
 	default n
 	help
           This option enables support for the Maple 970FX Evaluation Board.
 	  For more informations, refer to <http://www.970eval.com>
 
-config PPC_BPA
-	bool "  Broadband Processor Architecture"
+config PPC_CELL
+	bool "  Cell Broadband Processor Architecture"
 	depends on PPC_MULTIPLATFORM && PPC64
 	select PPC_RTAS
+	select MMIO_NVRAM
 
 config PPC_OF
 	bool
@@ -353,13 +356,26 @@ config RTAS_ERROR_LOGGING
 	depends on PPC_RTAS
 	default n
 
+config RTAS_PROC
+	bool "Proc interface to RTAS"
+	depends on PPC_RTAS
+	default y
+
+config RTAS_FLASH
+	tristate "Firmware flash interface"
+	depends on PPC64 && RTAS_PROC
+
+config MMIO_NVRAM
+	bool
+	default n
+
 config MPIC_BROKEN_U3
 	bool
 	depends on PPC_MAPLE
 	default y
 
-config BPA_IIC
-	depends on PPC_BPA
+config CELL_IIC
+	depends on PPC_CELL
 	bool
 	default y
 
@@ -372,6 +388,11 @@ config PPC_MPC106
 	bool
 	default n
 
+config GENERIC_TBSYNC
+	bool
+	default y if CONFIG_PPC32 && CONFIG_SMP
+	default n
+
 source "drivers/cpufreq/Kconfig"
 
 config CPU_FREQ_PMAC

arch/powerpc/Makefile

@@ -12,9 +12,6 @@
 # Rewritten by Cort Dougan and Paul Mackerras
 #
 
-# This must match PAGE_OFFSET in include/asm-powerpc/page.h.
-KERNELLOAD	:= $(CONFIG_KERNEL_START)
-
 HAS_BIARCH	:= $(call cc-option-yn, -m32)
 
 ifeq ($(CONFIG_PPC64),y)
@@ -59,7 +56,7 @@ override LD	+= -m elf$(SZ)ppc
 override CC	+= -m$(SZ)
 endif
 
-LDFLAGS_vmlinux	:= -Ttext $(KERNELLOAD) -Bstatic -e $(KERNELLOAD)
+LDFLAGS_vmlinux	:= -Bstatic
 
 # The -Iarch/$(ARCH)/include is temporary while we are merging
 CPPFLAGS	+= -Iarch/$(ARCH) -Iarch/$(ARCH)/include

arch/powerpc/kernel/Makefile

@@ -13,12 +13,15 @@ endif
 obj-y				:= semaphore.o cputable.o ptrace.o syscalls.o \
 				   signal_32.o pmc.o
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
-				   ptrace32.o systbl.o
+				   signal_64.o ptrace32.o systbl.o
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_POWER4)		+= idle_power4.o
 obj-$(CONFIG_PPC_OF)		+= of_device.o
 obj-$(CONFIG_PPC_RTAS)		+= rtas.o
+obj-$(CONFIG_RTAS_FLASH)	+= rtas_flash.o
+obj-$(CONFIG_RTAS_PROC)		+= rtas-proc.o
 obj-$(CONFIG_IBMVIO)		+= vio.o
+obj-$(CONFIG_GENERIC_TBSYNC)	+= smp-tbsync.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
 
@@ -38,6 +41,7 @@ obj-$(CONFIG_PPC_OF)		+= prom_init.o
 obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
 obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
 obj-$(CONFIG_6xx)		+= idle_6xx.o
+obj-$(CONFIG_SMP)		+= smp.o
 
 ifeq ($(CONFIG_PPC_ISERIES),y)
 $(obj)/head_64.o: $(obj)/lparmap.s
@@ -46,8 +50,9 @@ endif
 
 else
 # stuff used from here for ARCH=ppc or ARCH=ppc64
+smpobj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_PPC64)		+= traps.o process.o init_task.o time.o \
-				   setup-common.o
+				   setup-common.o $(smpobj-y)
 
 
 endif

arch/powerpc/kernel/asm-offsets.c

@@ -40,7 +40,7 @@
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
 #include <asm/lppaca.h>
-#include <asm/iSeries/HvLpEvent.h>
+#include <asm/iseries/hv_lp_event.h>
 #include <asm/cache.h>
 #include <asm/systemcfg.h>
 #include <asm/compat.h>

arch/powerpc/kernel/head_64.S

@@ -35,7 +35,7 @@
 #include <asm/cputable.h>
 #include <asm/setup.h>
 #include <asm/hvcall.h>
-#include <asm/iSeries/LparMap.h>
+#include <asm/iseries/lpar_map.h>
 #include <asm/thread_info.h>
 
 #ifdef CONFIG_PPC_ISERIES
@@ -1914,24 +1914,6 @@ _GLOBAL(hmt_start_secondary)
 	blr
 #endif
 
-#if defined(CONFIG_KEXEC) || defined(CONFIG_SMP)
-_GLOBAL(smp_release_cpus)
-	/* All secondary cpus are spinning on a common
-	 * spinloop, release them all now so they can start
-	 * to spin on their individual paca spinloops.
-	 * For non SMP kernels, the secondary cpus never
-	 * get out of the common spinloop.
-	 * XXX This does nothing useful on iSeries, secondaries are
-	 * already waiting on their paca.
-	 */
-	li	r3,1
-	LOADADDR(r5,__secondary_hold_spinloop)
-	std	r3,0(r5)
-	sync
-	blr
-#endif /* CONFIG_SMP */
-
-
 /*
  * We put a few things here that have to be page-aligned.
  * This stuff goes at the beginning of the bss, which is page-aligned.

arch/powerpc/kernel/lparmap.c

@@ -8,7 +8,7 @@
  */
 #include <asm/mmu.h>
 #include <asm/page.h>
-#include <asm/iSeries/LparMap.h>
+#include <asm/iseries/lpar_map.h>
 
 const struct LparMap __attribute__((__section__(".text"))) xLparMap = {
 	.xNumberEsids = HvEsidsToMap,

include/asm-ppc64/ppc32.h → arch/powerpc/kernel/ppc32.h

@@ -91,6 +91,22 @@ typedef struct sigaltstack_32 {
 	compat_size_t ss_size;
 } stack_32_t;
 
+struct pt_regs32 {
+	unsigned int gpr[32];
+	unsigned int nip;
+	unsigned int msr;
+	unsigned int orig_gpr3;		/* Used for restarting system calls */
+	unsigned int ctr;
+	unsigned int link;
+	unsigned int xer;
+	unsigned int ccr;
+	unsigned int mq;		/* 601 only (not used at present) */
+	unsigned int trap;		/* Reason for being here */
+	unsigned int dar;		/* Fault registers */
+	unsigned int dsisr;
+	unsigned int result;		/* Result of a system call */
+};
+
 struct sigcontext32 {
 	unsigned int	_unused[4];
 	int		signal;

arch/powerpc/kernel/ppc_ksyms.c

@@ -81,15 +81,6 @@ EXPORT_SYMBOL(_prep_type);
 EXPORT_SYMBOL(ucSystemType);
 #endif
 
-#if !defined(__INLINE_BITOPS)
-EXPORT_SYMBOL(set_bit);
-EXPORT_SYMBOL(clear_bit);
-EXPORT_SYMBOL(change_bit);
-EXPORT_SYMBOL(test_and_set_bit);
-EXPORT_SYMBOL(test_and_clear_bit);
-EXPORT_SYMBOL(test_and_change_bit);
-#endif /* __INLINE_BITOPS */
-
 EXPORT_SYMBOL(strcpy);
 EXPORT_SYMBOL(strncpy);
 EXPORT_SYMBOL(strcat);

arch/powerpc/kernel/process.c

@@ -48,8 +48,8 @@
 #include <asm/prom.h>
 #ifdef CONFIG_PPC64
 #include <asm/firmware.h>
-#include <asm/plpar_wrappers.h>
 #include <asm/time.h>
+#include <asm/machdep.h>
 #endif
 
 extern unsigned long _get_SP(void);
@@ -201,27 +201,15 @@ int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
 }
 #endif /* CONFIG_SPE */
 
-static void set_dabr_spr(unsigned long val)
-{
-	mtspr(SPRN_DABR, val);
-}
-
 int set_dabr(unsigned long dabr)
 {
-	int ret = 0;
-
 #ifdef CONFIG_PPC64
-	if (firmware_has_feature(FW_FEATURE_XDABR)) {
-		/* We want to catch accesses from kernel and userspace */
-		unsigned long flags = H_DABRX_KERNEL|H_DABRX_USER;
-		ret = plpar_set_xdabr(dabr, flags);
-	} else if (firmware_has_feature(FW_FEATURE_DABR)) {
-		ret = plpar_set_dabr(dabr);
-	} else
+	if (ppc_md.set_dabr)
+		return ppc_md.set_dabr(dabr);
 #endif
-		set_dabr_spr(dabr);
 
-	return ret;
+	mtspr(SPRN_DABR, dabr);
+	return 0;
 }
 
 #ifdef CONFIG_PPC64

arch/powerpc/kernel/prom.c

@@ -1285,7 +1285,7 @@ static int __init early_init_dt_scan_memory(unsigned long node,
 
 	endp = reg + (l / sizeof(cell_t));
 
-	DBG("memory scan node %s ..., reg size %ld, data: %x %x %x %x, ...\n",
+	DBG("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
 	    uname, l, reg[0], reg[1], reg[2], reg[3]);
 
 	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {

arch/powerpc/kernel/prom_init.c

@@ -2000,7 +2000,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
 #endif
 
 	/*
-	 * On pSeries and BPA, copy the CPU hold code
+	 * Copy the CPU hold code
 	 */
        	if (RELOC(of_platform) != PLATFORM_POWERMAC)
        		copy_and_flush(0, KERNELBASE + offset, 0x100, 0);

arch/powerpc/kernel/rtas.c

@@ -42,6 +42,13 @@ DEFINE_SPINLOCK(rtas_data_buf_lock);
 char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
 unsigned long rtas_rmo_buf;
 
+/*
+ * If non-NULL, this gets called when the kernel terminates.
+ * This is done like this so rtas_flash can be a module.
+ */
+void (*rtas_flash_term_hook)(int);
+EXPORT_SYMBOL(rtas_flash_term_hook);
+
 /*
  * call_rtas_display_status and call_rtas_display_status_delay
  * are designed only for very early low-level debugging, which
@@ -206,6 +213,7 @@ void rtas_progress(char *s, unsigned short hex)
  
 	spin_unlock(&progress_lock);
 }
+EXPORT_SYMBOL(rtas_progress);		/* needed by rtas_flash module */
 
 int rtas_token(const char *service)
 {
@@ -492,6 +500,8 @@ int rtas_set_indicator(int indicator, int index, int new_value)
 
 void rtas_restart(char *cmd)
 {
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_RESTART);
 	printk("RTAS system-reboot returned %d\n",
 	       rtas_call(rtas_token("system-reboot"), 0, 1, NULL));
 	for (;;);
@@ -499,6 +509,8 @@ void rtas_restart(char *cmd)
 
 void rtas_power_off(void)
 {
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_POWER_OFF);
 	/* allow power on only with power button press */
 	printk("RTAS power-off returned %d\n",
 	       rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
@@ -507,7 +519,12 @@ void rtas_power_off(void)
 
 void rtas_halt(void)
 {
-	rtas_power_off();
+	if (rtas_flash_term_hook)
+		rtas_flash_term_hook(SYS_HALT);
+	/* allow power on only with power button press */
+	printk("RTAS power-off returned %d\n",
+	       rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1));
+	for (;;);
 }
 
 /* Must be in the RMO region, so we place it here */

arch/ppc64/kernel/rtas_flash.c → arch/powerpc/kernel/rtas_flash.c

@@ -19,6 +19,7 @@
 #include <asm/delay.h>
 #include <asm/uaccess.h>
 #include <asm/rtas.h>
+#include <asm/abs_addr.h>
 
 #define MODULE_VERS "1.0"
 #define MODULE_NAME "rtas_flash"
@@ -71,10 +72,36 @@
 #define VALIDATE_BUF_SIZE 4096    
 #define RTAS_MSG_MAXLEN   64
 
+struct flash_block {
+	char *data;
+	unsigned long length;
+};
+
+/* This struct is very similar but not identical to
+ * that needed by the rtas flash update.
+ * All we need to do for rtas is rewrite num_blocks
+ * into a version/length and translate the pointers
+ * to absolute.
+ */
+#define FLASH_BLOCKS_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct flash_block))
+struct flash_block_list {
+	unsigned long num_blocks;
+	struct flash_block_list *next;
+	struct flash_block blocks[FLASH_BLOCKS_PER_NODE];
+};
+struct flash_block_list_header { /* just the header of flash_block_list */
+	unsigned long num_blocks;
+	struct flash_block_list *next;
+};
+
+static struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
+
+#define FLASH_BLOCK_LIST_VERSION (1UL)
+
 /* Local copy of the flash block list.
  * We only allow one open of the flash proc file and create this
- * list as we go.  This list will be put in the kernel's
- * rtas_firmware_flash_list global var once it is fully read.
+ * list as we go.  This list will be put in the
+ * rtas_firmware_flash_list var once it is fully read.
  *
  * For convenience as we build the list we use virtual addrs,
  * we do not fill in the version number, and the length field
@@ -562,6 +589,86 @@ static int validate_flash_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static void rtas_flash_firmware(int reboot_type)
+{
+	unsigned long image_size;
+	struct flash_block_list *f, *next, *flist;
+	unsigned long rtas_block_list;
+	int i, status, update_token;
+
+	if (rtas_firmware_flash_list.next == NULL)
+		return;		/* nothing to do */
+
+	if (reboot_type != SYS_RESTART) {
+		printk(KERN_ALERT "FLASH: firmware flash requires a reboot\n");
+		printk(KERN_ALERT "FLASH: the firmware image will NOT be flashed\n");
+		return;
+	}
+
+	update_token = rtas_token("ibm,update-flash-64-and-reboot");
+	if (update_token == RTAS_UNKNOWN_SERVICE) {
+		printk(KERN_ALERT "FLASH: ibm,update-flash-64-and-reboot "
+		       "is not available -- not a service partition?\n");
+		printk(KERN_ALERT "FLASH: firmware will not be flashed\n");
+		return;
+	}
+
+	/* NOTE: the "first" block list is a global var with no data
+	 * blocks in the kernel data segment.  We do this because
+	 * we want to ensure this block_list addr is under 4GB.
+	 */
+	rtas_firmware_flash_list.num_blocks = 0;
+	flist = (struct flash_block_list *)&rtas_firmware_flash_list;
+	rtas_block_list = virt_to_abs(flist);
+	if (rtas_block_list >= 4UL*1024*1024*1024) {
+		printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
+		return;
+	}
+
+	printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
+	/* Update the block_list in place. */
+	image_size = 0;
+	for (f = flist; f; f = next) {
+		/* Translate data addrs to absolute */
+		for (i = 0; i < f->num_blocks; i++) {
+			f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data);
+			image_size += f->blocks[i].length;
+		}
+		next = f->next;
+		/* Don't translate NULL pointer for last entry */
+		if (f->next)
+			f->next = (struct flash_block_list *)virt_to_abs(f->next);
+		else
+			f->next = NULL;
+		/* make num_blocks into the version/length field */
+		f->num_blocks = (FLASH_BLOCK_LIST_VERSION << 56) | ((f->num_blocks+1)*16);
+	}
+
+	printk(KERN_ALERT "FLASH: flash image is %ld bytes\n", image_size);
+	printk(KERN_ALERT "FLASH: performing flash and reboot\n");
+	rtas_progress("Flashing        \n", 0x0);
+	rtas_progress("Please Wait...  ", 0x0);
+	printk(KERN_ALERT "FLASH: this will take several minutes.  Do not power off!\n");
+	status = rtas_call(update_token, 1, 1, NULL, rtas_block_list);
+	switch (status) {	/* should only get "bad" status */
+	    case 0:
+		printk(KERN_ALERT "FLASH: success\n");
+		break;
+	    case -1:
+		printk(KERN_ALERT "FLASH: hardware error.  Firmware may not be not flashed\n");
+		break;
+	    case -3:
+		printk(KERN_ALERT "FLASH: image is corrupt or not correct for this platform.  Firmware not flashed\n");
+		break;
+	    case -4:
+		printk(KERN_ALERT "FLASH: flash failed when partially complete.  System may not reboot\n");
+		break;
+	    default:
+		printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
+		break;
+	}
+}
+
 static void remove_flash_pde(struct proc_dir_entry *dp)
 {
 	if (dp) {
@@ -701,6 +808,7 @@ int __init rtas_flash_init(void)
 	if (rc != 0)
 		goto cleanup;
 
+	rtas_flash_term_hook = rtas_flash_firmware;
 	return 0;
 
 cleanup:
@@ -714,6 +822,7 @@ int __init rtas_flash_init(void)
 
 void __exit rtas_flash_cleanup(void)
 {
+	rtas_flash_term_hook = NULL;
 	remove_flash_pde(firmware_flash_pde);
 	remove_flash_pde(firmware_update_pde);
 	remove_flash_pde(validate_pde);

arch/powerpc/kernel/setup_32.c

@@ -288,6 +288,8 @@ void __init setup_arch(char **cmdline_p)
 	unflatten_device_tree();
 	finish_device_tree();
 
+	smp_setup_cpu_maps();
+
 #ifdef CONFIG_BOOTX_TEXT
 	init_boot_display();
 #endif

arch/powerpc/kernel/signal_32.c

@@ -43,7 +43,7 @@
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
 #ifdef CONFIG_PPC64
-#include <asm/ppc32.h>
+#include "ppc32.h"
 #include <asm/ppcdebug.h>
 #include <asm/unistd.h>
 #include <asm/vdso.h>

arch/powerpc/kernel/time.c

@@ -66,8 +66,8 @@
 #include <asm/firmware.h>
 #endif
 #ifdef CONFIG_PPC_ISERIES
-#include <asm/iSeries/ItLpQueue.h>
-#include <asm/iSeries/HvCallXm.h>
+#include <asm/iseries/it_lp_queue.h>
+#include <asm/iseries/hv_call_xm.h>
 #endif
 
 /* keep track of when we need to update the rtc */

arch/powerpc/kernel/traps.c

@@ -147,8 +147,8 @@ int die(const char *str, struct pt_regs *regs, long err)
 		printk("POWERMAC ");
 		nl = 1;
 		break;
-	case PLATFORM_BPA:
-		printk("BPA ");
+	case PLATFORM_CELL:
+		printk("CELL ");
 		nl = 1;
 		break;
 	}
@@ -749,22 +749,22 @@ static int check_bug_trap(struct pt_regs *regs)
 	if (bug->line & BUG_WARNING_TRAP) {
 		/* this is a WARN_ON rather than BUG/BUG_ON */
 #ifdef CONFIG_XMON
-		xmon_printf(KERN_ERR "Badness in %s at %s:%d\n",
+		xmon_printf(KERN_ERR "Badness in %s at %s:%ld\n",
 		       bug->function, bug->file,
 		       bug->line & ~BUG_WARNING_TRAP);
 #endif /* CONFIG_XMON */		
-		printk(KERN_ERR "Badness in %s at %s:%d\n",
+		printk(KERN_ERR "Badness in %s at %s:%ld\n",
 		       bug->function, bug->file,
 		       bug->line & ~BUG_WARNING_TRAP);
 		dump_stack();
 		return 1;
 	}
 #ifdef CONFIG_XMON
-	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+	xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
 	       bug->function, bug->file, bug->line);
 	xmon(regs);
 #endif /* CONFIG_XMON */
-	printk(KERN_CRIT "kernel BUG in %s at %s:%d!\n",
+	printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
 	       bug->function, bug->file, bug->line);
 
 	return 0;

arch/powerpc/lib/locks.c

@@ -22,7 +22,7 @@
 /* waiting for a spinlock... */
 #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
 #include <asm/hvcall.h>
-#include <asm/iSeries/HvCall.h>
+#include <asm/iseries/hv_call.h>
 
 void __spin_yield(raw_spinlock_t *lock)
 {

arch/powerpc/platforms/Makefile

@@ -11,3 +11,4 @@ obj-$(CONFIG_85xx)		+= 85xx/
 obj-$(CONFIG_PPC_PSERIES)	+= pseries/
 obj-$(CONFIG_PPC_ISERIES)	+= iseries/
 obj-$(CONFIG_PPC_MAPLE)		+= maple/
+obj-$(CONFIG_PPC_CELL)		+= cell/