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

* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix bugs in the hypervisor call stats code
  [POWERPC] Fix corruption in hcall9
  [POWERPC] iSeries: fix setup initcall
  [POWERPC] iSeries: fix viopath initialisation
  [POWERPC] iSeries: fix lpevents initialisation
  [POWERPC] iSeries: fix proc/iSeries initialisation
  [POWERPC] iSeries: fix mf proc initialisation
  [POWERPC] disable PReP and EFIKA during make oldconfig
  [POWERPC] Fix mpc52xx serial driver to work for arch/ppc again
  [POWERPC] Don't include powerpc/sysdev/rom.o for arch/ppc builds
  [POWERPC] Fix mpc52xx fdt to use correct device_type for sound devices
  [POWERPC] 52xx: Don't use device_initcall to probe of_platform_bus
  [POWERPC] Add legacy iSeries to ppc64_defconfig
  [POWERPC] Update ppc64_defconfig
  [POWERPC] Fix manual assembly WARN_ON() in enter_rtas().
  [POWERPC] Avoid calling get_irq_server() with a real, not virtual irq.
  [POWERPC] Fix unbalanced uses of of_node_put
  [POWERPC] Fix bogus BUG_ON() in in hugetlb_get_unmapped_area()

Documentation/powerpc/mpc52xx-device-tree-bindings.txt

@@ -157,8 +157,8 @@ rtc@<addr>	rtc		*-rtc		Real time clock
 mscan@<addr>	mscan		*-mscan		CAN bus controller
 pci@<addr>	pci		*-pci		PCI bridge
 serial@<addr>	serial		*-psc-uart	PSC in serial mode
-i2s@<addr>	i2s		*-psc-i2s	PSC in i2s mode
-ac97@<addr>	ac97		*-psc-ac97	PSC in ac97 mode
+i2s@<addr>	sound		*-psc-i2s	PSC in i2s mode
+ac97@<addr>	sound		*-psc-ac97	PSC in ac97 mode
 spi@<addr>	spi		*-psc-spi	PSC in spi mode
 irda@<addr>	irda		*-psc-irda	PSC in IrDA mode
 spi@<addr>	spi		*-spi		MPC52xx spi device

arch/powerpc/Kconfig

@@ -436,7 +436,7 @@ config PPC_EFIKA
 	select RTAS_PROC
 	select PPC_MPC52xx
 	select PPC_NATIVE
-	default y
+	default n
 
 config PPC_LITE5200
 	bool "Freescale Lite5200 Eval Board"
@@ -471,7 +471,7 @@ config PPC_PREP
 	select PPC_INDIRECT_PCI
 	select PPC_UDBG_16550
 	select PPC_NATIVE
-	default y
+	default n
 
 config PPC_MAPLE
 	depends on PPC_MULTIPLATFORM && PPC64

arch/powerpc/boot/dts/lite5200.dts

@@ -238,7 +238,7 @@
 
 		// PSC3 in CODEC mode example
 		i2s@2400 {		// PSC3
-			device_type = "i2s";
+			device_type = "sound";
 			compatible = "mpc5200-psc-i2s\0mpc52xx-psc-i2s";
 			reg = <2400 100>;
 			interrupts = <2 3 0>;
@@ -265,7 +265,7 @@
 
 		// PSC6 in AC97 mode example
 		ac97@2c00 {		// PSC6
-			device_type = "ac97";
+			device_type = "sound";
 			compatible = "mpc5200-psc-ac97\0mpc52xx-psc-ac97";
 			reg = <2c00 100>;
 			interrupts = <2 4 0>;

arch/powerpc/boot/dts/lite5200b.dts

@@ -243,7 +243,7 @@
 
 		// PSC3 in CODEC mode example
 		i2s@2400 {		// PSC3
-			device_type = "i2s";
+			device_type = "sound";
 			compatible = "mpc5200b-psc-i2s\0mpc52xx-psc-i2s";
 			reg = <2400 100>;
 			interrupts = <2 3 0>;
@@ -270,7 +270,7 @@
 
 		// PSC6 in AC97 mode example
 		ac97@2c00 {		// PSC6
-			device_type = "ac97";
+			device_type = "sound";
 			compatible = "mpc5200b-psc-ac97\0mpc52xx-psc-ac97";
 			reg = <2c00 100>;
 			interrupts = <2 4 0>;

arch/powerpc/kernel/asm-offsets.c

@@ -303,5 +303,8 @@ int main(void)
 	DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
 	DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
 
+#ifdef CONFIG_BUG
+	DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
+#endif
 	return 0;
 }

arch/powerpc/kernel/entry_64.S

@@ -28,6 +28,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/cputable.h>
 #include <asm/firmware.h>
+#include <asm/bug.h>
 
 /*
  * System calls.
@@ -634,18 +635,14 @@ _GLOBAL(enter_rtas)
 	li	r0,0
 	mtcr	r0
 
+#ifdef CONFIG_BUG	
 	/* There is no way it is acceptable to get here with interrupts enabled,
 	 * check it with the asm equivalent of WARN_ON
 	 */
 	lbz	r0,PACASOFTIRQEN(r13)
 1:	tdnei	r0,0
-.section __bug_table,"a"
-	.llong	1b,__LINE__ + 0x1000000, 1f, 2f
-.previous
-.section .rodata,"a"
-1:	.asciz	__FILE__
-2:	.asciz "enter_rtas"
-.previous
+	EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,BUGFLAG_WARNING
+#endif
 	
 	/* Hard-disable interrupts */
 	mfmsr	r6

arch/powerpc/mm/hugetlbpage.c

@@ -744,7 +744,8 @@ static int htlb_check_hinted_area(unsigned long addr, unsigned long len)
 	struct vm_area_struct *vma;
 
 	vma = find_vma(current->mm, addr);
-	if (!vma || ((addr + len) <= vma->vm_start))
+	if (TASK_SIZE - len >= addr &&
+	    (!vma || ((addr + len) <= vma->vm_start)))
 		return 0;
 
 	return -ENOMEM;
@@ -815,6 +816,8 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 		return -EINVAL;
 	if (len & ~HPAGE_MASK)
 		return -EINVAL;
+	if (len > TASK_SIZE)
+		return -ENOMEM;
 
 	if (!cpu_has_feature(CPU_FTR_16M_PAGE))
 		return -EINVAL;
@@ -823,9 +826,6 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
 	BUG_ON((addr + len)  < addr);
 
 	if (test_thread_flag(TIF_32BIT)) {
-		/* Paranoia, caller should have dealt with this */
-		BUG_ON((addr + len) > 0x100000000UL);
-
 		curareas = current->mm->context.low_htlb_areas;
 
 		/* First see if we can use the hint address */

arch/powerpc/platforms/52xx/lite5200.c

@@ -153,6 +153,7 @@ define_machine(lite52xx) {
 	.name 		= "lite52xx",
 	.probe 		= lite52xx_probe,
 	.setup_arch 	= lite52xx_setup_arch,
+	.init		= mpc52xx_declare_of_platform_devices,
 	.init_IRQ 	= mpc52xx_init_irq,
 	.get_irq 	= mpc52xx_get_irq,
 	.show_cpuinfo	= lite52xx_show_cpuinfo,

arch/powerpc/platforms/52xx/mpc52xx_common.c

@@ -116,11 +116,12 @@ unmap_regs:
 	if (xlb) iounmap(xlb);
 }
 
-static int __init
+void __init
 mpc52xx_declare_of_platform_devices(void)
 {
 	/* Find every child of the SOC node and add it to of_platform */
-	return of_platform_bus_probe(NULL, NULL, NULL);
+	if (of_platform_bus_probe(NULL, NULL, NULL))
+		printk(KERN_ERR __FILE__ ": "
+			"Error while probing of_platform bus\n");
 }
 
-device_initcall(mpc52xx_declare_of_platform_devices);

arch/powerpc/platforms/iseries/lpevents.c

@@ -17,6 +17,7 @@
 
 #include <asm/system.h>
 #include <asm/paca.h>
+#include <asm/firmware.h>
 #include <asm/iseries/it_lp_queue.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
@@ -318,6 +319,9 @@ static int __init proc_lpevents_init(void)
 {
 	struct proc_dir_entry *e;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return 0;
+
 	e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL);
 	if (e)
 		e->proc_fops = &proc_lpevents_operations;

arch/powerpc/platforms/iseries/mf.c

@@ -38,6 +38,7 @@
 #include <asm/uaccess.h>
 #include <asm/paca.h>
 #include <asm/abs_addr.h>
+#include <asm/firmware.h>
 #include <asm/iseries/vio.h>
 #include <asm/iseries/mf.h>
 #include <asm/iseries/hv_lp_config.h>
@@ -1235,6 +1236,9 @@ static int __init mf_proc_init(void)
 	char name[2];
 	int i;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return 0;
+
 	mf_proc_root = proc_mkdir("iSeries/mf", NULL);
 	if (!mf_proc_root)
 		return 1;

arch/powerpc/platforms/iseries/proc.c

@@ -24,6 +24,7 @@
 #include <asm/processor.h>
 #include <asm/time.h>
 #include <asm/lppaca.h>
+#include <asm/firmware.h>
 #include <asm/iseries/hv_call_xm.h>
 
 #include "processor_vpd.h"
@@ -31,7 +32,12 @@
 
 static int __init iseries_proc_create(void)
 {
-	struct proc_dir_entry *e = proc_mkdir("iSeries", 0);
+	struct proc_dir_entry *e;
+
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return 0;
+
+	e = proc_mkdir("iSeries", 0);
 	if (!e)
 		return 1;
 
@@ -106,6 +112,9 @@ static int __init iseries_proc_init(void)
 {
 	struct proc_dir_entry *e;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return 0;
+
 	e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL);
 	if (e)
 		e->proc_fops = &proc_titantod_operations;

arch/powerpc/platforms/iseries/setup.c

@@ -527,6 +527,7 @@ static void __init iSeries_fixup_klimit(void)
 static int __init iSeries_src_init(void)
 {
         /* clear the progress line */
+	if (firmware_has_feature(FW_FEATURE_ISERIES))
 		ppc_md.progress(" ", 0xffff);
         return 0;
 }

arch/powerpc/platforms/iseries/viopath.c

@@ -42,6 +42,7 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/prom.h>
+#include <asm/firmware.h>
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_lp_config.h>
@@ -183,6 +184,9 @@ static int __init vio_proc_init(void)
 {
 	struct proc_dir_entry *e;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return 0;
+
 	e = create_proc_entry("iSeries/config", 0, NULL);
 	if (e)
 		e->proc_fops = &proc_viopath_operations;

arch/powerpc/platforms/maple/setup.c

@@ -254,7 +254,6 @@ static void __init maple_init_IRQ(void)
 		printk(KERN_DEBUG "OpenPIC addr: %lx, has ISUs: %d\n",
 		       openpic_addr, has_isus);
 	}
-	of_node_put(root);
 
 	BUG_ON(openpic_addr == 0);
 

arch/powerpc/platforms/pasemi/setup.c

@@ -129,7 +129,6 @@ static __init void pas_init_IRQ(void)
 	}
 	openpic_addr = of_read_number(opprop, naddr);
 	printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
-	of_node_put(root);
 
 	mpic = mpic_alloc(mpic_node, openpic_addr, MPIC_PRIMARY, 0, 0,
 			  " PAS-OPIC  ");

arch/powerpc/platforms/pseries/hvCall.S

@@ -26,7 +26,7 @@
 BEGIN_FTR_SECTION;						\
 	mfspr	r0,SPRN_PURR;		/* get PURR and */	\
 	std	r0,STK_PARM(r6)(r1);	/* save for later */	\
-END_FTR_SECTION_IFCLR(CPU_FTR_PURR);
+END_FTR_SECTION_IFSET(CPU_FTR_PURR);
 	
 /*
  * postcall is performed immediately before function return which
@@ -43,7 +43,7 @@ BEGIN_FTR_SECTION;						\
 	mfspr	r8,SPRN_PURR;		/* PURR after */	\
 	ld	r6,STK_PARM(r6)(r1);	/* PURR before */	\
 	subf	r6,r6,r8;		/* delta */		\
-END_FTR_SECTION_IFCLR(CPU_FTR_PURR);				\
+END_FTR_SECTION_IFSET(CPU_FTR_PURR);				\
 	ld	r5,STK_PARM(r5)(r1);	/* timebase before */	\
 	subf	r5,r5,r7;		/* time delta */	\
 								\
@@ -66,7 +66,7 @@ BEGIN_FTR_SECTION;						\
 	ld	r7,HCALL_STAT_PURR(r4);	/* PURR */		\
 	add	r7,r7,r6;					\
 	std	r7,HCALL_STAT_PURR(r4);				\
-END_FTR_SECTION_IFCLR(CPU_FTR_PURR);				\
+END_FTR_SECTION_IFSET(CPU_FTR_PURR);				\
 1:
 #else
 #define HCALL_INST_PRECALL
@@ -145,6 +145,7 @@ _GLOBAL(plpar_hcall9)
 
 	HVSC				/* invoke the hypervisor */
 
+	mr	r0,r12
 	ld	r12,STK_PARM(r4)(r1)
 	std	r4,  0(r12)
 	std	r5,  8(r12)
@@ -154,7 +155,7 @@ _GLOBAL(plpar_hcall9)
 	std	r9, 40(r12)
 	std	r10,48(r12)
 	std	r11,56(r12)
-	std	r12,64(r12)
+	std	r0, 64(r12)
 
 	HCALL_INST_POSTCALL
 

arch/powerpc/platforms/pseries/hvCall_inst.c

@@ -34,7 +34,7 @@ DEFINE_PER_CPU(struct hcall_stats[HCALL_STAT_ARRAY_SIZE], hcall_stats);
  */
 static void *hc_start(struct seq_file *m, loff_t *pos)
 {
-	if ((int)*pos < HCALL_STAT_ARRAY_SIZE)
+	if ((int)*pos < (HCALL_STAT_ARRAY_SIZE-1))
 		return (void *)(unsigned long)(*pos + 1);
 
 	return NULL;
@@ -57,7 +57,7 @@ static int hc_show(struct seq_file *m, void *p)
 	struct hcall_stats *hs = (struct hcall_stats *)m->private;
 
 	if (hs[h_num].num_calls) {
-		if (!cpu_has_feature(CPU_FTR_PURR))
+		if (cpu_has_feature(CPU_FTR_PURR))
 			seq_printf(m, "%lu %lu %lu %lu\n", h_num<<2,
 				   hs[h_num].num_calls,
 				   hs[h_num].tb_total,

arch/powerpc/platforms/pseries/xics.c

@@ -224,7 +224,6 @@ static void xics_unmask_irq(unsigned int virq)
 static void xics_mask_real_irq(unsigned int irq)
 {
 	int call_status;
-	unsigned int server;
 
 	if (irq == XICS_IPI)
 		return;
@@ -236,9 +235,9 @@ static void xics_mask_real_irq(unsigned int irq)
 		return;
 	}
 
-	server = get_irq_server(irq);
 	/* Have to set XIVE to 0xff to be able to remove a slot */
-	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, 0xff);
+	call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq,
+				default_server, 0xff);
 	if (call_status != 0) {
 		printk(KERN_ERR "xics_disable_irq: irq=%u: ibm_set_xive(0xff)"
 		       " returned %d\n", irq, call_status);

arch/powerpc/sysdev/Makefile

@@ -12,7 +12,6 @@ obj-$(CONFIG_MMIO_NVRAM)	+= mmio_nvram.o
 obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o
 obj-$(CONFIG_TSI108_BRIDGE)	+= tsi108_pci.o tsi108_dev.o
 obj-$(CONFIG_QUICC_ENGINE)	+= qe_lib/
-obj-$(CONFIG_MTD)		+= rom.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
 obj-$(CONFIG_PPC_I8259)		+= i8259.o
@@ -21,5 +20,6 @@ endif
 
 # Temporary hack until we have migrated to asm-powerpc
 ifeq ($(ARCH),powerpc)
+obj-$(CONFIG_MTD)		+= rom.o
 obj-$(CONFIG_CPM2)		+= cpm2_common.o cpm2_pic.o
 endif

drivers/serial/mpc52xx_uart.c

@@ -789,7 +789,9 @@ static struct console mpc52xx_console = {
 static int __init
 mpc52xx_console_init(void)
 {
+#if defined(CONFIG_PPC_MERGE)
 	mpc52xx_uart_of_enumerate();
+#endif
 	register_console(&mpc52xx_console);
 	return 0;
 }

include/asm-powerpc/bug.h

@@ -11,10 +11,31 @@
 #define BUG_OPCODE .long 0x00b00b00  /* For asm */
 #define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */
 
-#ifndef __ASSEMBLY__
-
 #ifdef CONFIG_BUG
 
+#ifdef __ASSEMBLY__
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+.macro EMIT_BUG_ENTRY addr,file,line,flags
+	 .section __bug_table,"a"
+5001:	 PPC_LONG \addr, 5002f
+	 .short \line, \flags
+	 .org 5001b+BUG_ENTRY_SIZE
+	 .previous
+	 .section .rodata,"a"
+5002:	 .asciz "\file"
+	 .previous
+.endm
+#else
+ .macro EMIT_BUG_ENTRY addr,file,line,flags
+	 .section __bug_table,"a"
+5001:	 PPC_LONG \addr
+	 .short \flags
+	 .org 5001b+BUG_ENTRY_SIZE
+	 .previous
+.endm
+#endif /* verbose */
+
+#else /* !__ASSEMBLY__ */
 /* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and
    sizeof(struct bug_entry), respectively */
 #ifdef CONFIG_DEBUG_BUGVERBOSE
@@ -91,8 +112,8 @@
 #define HAVE_ARCH_BUG
 #define HAVE_ARCH_BUG_ON
 #define HAVE_ARCH_WARN_ON
-#endif /* CONFIG_BUG */
 #endif /* __ASSEMBLY __ */
+#endif /* CONFIG_BUG */
 
 #include <asm-generic/bug.h>
 

include/asm-powerpc/hvcall.h

@@ -252,8 +252,6 @@ struct hcall_stats {
 	unsigned long	tb_total;	/* total wall time (mftb) of calls. */
 	unsigned long	purr_total;	/* total cpu time (PURR) of calls. */
 };
-void update_hcall_stats(unsigned long opcode, unsigned long tb_delta,
-			unsigned long purr_delta);
 #define HCALL_STAT_ARRAY_SIZE	((MAX_HCALL_OPCODE >> 2) + 1)
 
 #endif /* __ASSEMBLY__ */

include/asm-powerpc/mpc52xx.h

@@ -244,6 +244,7 @@ struct mpc52xx_cdm {
 extern void __iomem * mpc52xx_find_and_map(const char *);
 extern unsigned int mpc52xx_find_ipb_freq(struct device_node *node);
 extern void mpc52xx_setup_cpu(void);
+extern void mpc52xx_declare_of_platform_devices(void);
 
 extern void mpc52xx_init_irq(void);
 extern unsigned int mpc52xx_get_irq(void);