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

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Clean up duplicate includes in drivers/macintosh/
  [POWERPC] Quiet section mismatch warning on pcibios_setup
  [POWERPC] init and exit markings for hvc_iseries
  [POWERPC] Quiet section mismatch in hvc_rtas.c
  [POWERPC] Constify of_platform_driver match_table
  [POWERPC] hvcs: Make some things static and const
  [POWERPC] Constify of_platform_driver name
  [POWERPC] MPIC protected sources
  [POWERPC] of_detach_node()'s device node argument cannot be const
  [POWERPC] Fix ARCH=ppc builds
  [POWERPC] mv64x60: Use mutex instead of semaphore
  [POWERPC] Allow smp_call_function_single() to current cpu
  [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC
  [POWERPC] Fix future firmware feature fixups function failure
  [POWERPC] fix showing xmon help
  [POWERPC] Make xmon_write accept a const buffer
  [POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.
  [POWERPC] cell: CONFIG_SPE_BASE is a typo

16 files changed, 76 insertions, 35 deletions

diff --git a/arch/powerpc/configs/prpmc2800_defconfig b/arch/powerpc/configs/prpmc2800_defconfig
index fb504a714625..858f865f2d59 100644
--- a/arch/powerpc/configs/prpmc2800_defconfig
+++ b/arch/powerpc/configs/prpmc2800_defconfig
@@ -48,7 +48,7 @@ CONFIG_PPC_STD_MMU_32=y
 # CONFIG_PPC_MM_SLICES is not set
 # CONFIG_SMP is not set
 CONFIG_NOT_COHERENT_CACHE=y
-CONFIG_CONFIG_CHECK_CACHE_COHERENCY=y
+CONFIG_CHECK_CACHE_COHERENCY=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 94b4a028232a..fe7d1255e11e 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -166,7 +166,7 @@ int pcibios_add_platform_entries(struct pci_dev *pdev)
 
 }
 
-char __init *pcibios_setup(char *str)
+char __devinit *pcibios_setup(char *str)
 {
 	return str;
 }
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index bdcd23d8d8b9..a38197b12d3e 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1218,7 +1218,7 @@ void of_attach_node(struct device_node *np)
  * a reference to the node.  The memory associated with the node
  * is not freed until its refcount goes to zero.
  */
-void of_detach_node(const struct device_node *np)
+void of_detach_node(struct device_node *np)
 {
 	struct device_node *parent;
 
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index d577b71db375..087c92f2a3eb 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -284,7 +284,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
 			int wait)
 {
 	cpumask_t map = CPU_MASK_NONE;
-	int ret = -EBUSY;
+	int ret = 0;
 
 	if (!cpu_online(cpu))
 		return -EINVAL;
@@ -292,6 +292,11 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
 	cpu_set(cpu, map);
 	if (cpu != get_cpu())
 		ret = smp_call_function_map(func,info,nonatomic,wait,map);
+	else {
+		local_irq_disable();
+		func(info);
+		local_irq_enable();
+	}
 	put_cpu();
 	return ret;
 }
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 3767211b3d0f..ab3546c5ac3a 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -283,7 +283,13 @@ good_area:
 		/* protection fault */
 		if (error_code & DSISR_PROTFAULT)
 			goto bad_area;
-		if (!(vma->vm_flags & VM_EXEC))
+		/*
+		 * Allow execution from readable areas if the MMU does not
+		 * provide separate controls over reading and executing.
+		 */
+		if (!(vma->vm_flags & VM_EXEC) &&
+		    (cpu_has_feature(CPU_FTR_NOEXECUTE) ||
+		     !(vma->vm_flags & (VM_READ | VM_WRITE))))
 			goto bad_area;
 #else
 		pte_t *ptep;
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 2ce9491b48d4..bc7b0cedae5e 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -609,7 +609,7 @@ static void demote_segment_4k(struct mm_struct *mm, unsigned long addr)
 	mm->context.sllp = SLB_VSID_USER | mmu_psize_defs[MMU_PAGE_4K].sllp;
 #endif /* CONFIG_PPC_MM_SLICES */
 
-#ifdef CONFIG_SPE_BASE
+#ifdef CONFIG_SPU_BASE
 	spu_flush_all_slbs(mm);
 #endif
 }
@@ -744,7 +744,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 			       "to 4kB pages because of "
 			       "non-cacheable mapping\n");
 			psize = mmu_vmalloc_psize = MMU_PAGE_4K;
-#ifdef CONFIG_SPE_BASE
+#ifdef CONFIG_SPU_BASE
 			spu_flush_all_slbs(mm);
 #endif
 		}
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index b8b5fde94668..e4b2aee53a73 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -215,7 +215,7 @@ config NOT_COHERENT_CACHE
 	depends on 4xx || 8xx || E200
 	default y
 
-config CONFIG_CHECK_CACHE_COHERENCY
+config CHECK_CACHE_COHERENCY
 	bool
 
 endmenu
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index bec772674e40..2d12f77e46bc 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -59,7 +59,7 @@ config MPC10X_BRIDGE
 config MV64X60
 	bool
 	select PPC_INDIRECT_PCI
-	select CONFIG_CHECK_CACHE_COHERENCY
+	select CHECK_CACHE_COHERENCY
 
 config MPC10X_OPENPIC
 	bool
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 29bf83bfb1f0..8b18a1c40092 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -66,24 +66,13 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
  * device-tree/ibm,hypertas-functions.  Ultimately this functionality may
  * be moved into prom.c prom_init().
  */
-void __init fw_feature_init(void)
+void __init fw_feature_init(const char *hypertas, unsigned long len)
 {
-	struct device_node *dn;
-	const char *hypertas, *s;
-	int len, i;
+	const char *s;
+	int i;
 
 	DBG(" -> fw_feature_init()\n");
 
-	dn = of_find_node_by_path("/rtas");
-	if (dn == NULL) {
-		printk(KERN_ERR "WARNING! Cannot find RTAS in device-tree!\n");
-		goto out;
-	}
-
-	hypertas = of_get_property(dn, "ibm,hypertas-functions", &len);
-	if (hypertas == NULL)
-		goto out;
-
 	for (s = hypertas; s < hypertas + len; s += strlen(s) + 1) {
 		for (i = 0; i < FIRMWARE_MAX_FEATURES; i++) {
 			/* check value against table of strings */
@@ -98,7 +87,5 @@ void __init fw_feature_init(void)
 		}
 	}
 
-out:
-	of_node_put(dn);
 	DBG(" <- fw_feature_init()\n");
 }
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 61e19f78b923..61136d019554 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -10,7 +10,7 @@
 #ifndef _PSERIES_PSERIES_H
 #define _PSERIES_PSERIES_H
 
-extern void __init fw_feature_init(void);
+extern void __init fw_feature_init(const char *hypertas, unsigned long len);
 
 struct pt_regs;
 
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 59e69f085cb4..f0b7146a110f 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -320,8 +320,6 @@ static void __init pSeries_init_early(void)
 {
 	DBG(" -> pSeries_init_early()\n");
 
-	fw_feature_init();
-
 	if (firmware_has_feature(FW_FEATURE_LPAR))
 		find_udbg_vterm();
 
@@ -343,14 +341,21 @@ static int __init pSeries_probe_hypertas(unsigned long node,
 					 const char *uname, int depth,
 					 void *data)
 {
+	const char *hypertas;
+	unsigned long len;
+
 	if (depth != 1 ||
 	    (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0))
- 		return 0;
+		return 0;
+
+	hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len);
+	if (!hypertas)
+		return 1;
 
-	if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL) != NULL)
- 		powerpc_firmware_features |= FW_FEATURE_LPAR;
+	powerpc_firmware_features |= FW_FEATURE_LPAR;
+	fw_feature_init(hypertas, len);
 
- 	return 1;
+	return 1;
 }
 
 static int __init pSeries_probe(void)
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 75aad38179f0..74c64c0d3b71 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -877,6 +877,8 @@ static int mpic_host_map(struct irq_host *h, unsigned int virq,
 
 	if (hw == mpic->spurious_vec)
 		return -EINVAL;
+	if (mpic->protected && test_bit(hw, mpic->protected))
+		return -EINVAL;
 
 #ifdef CONFIG_SMP
 	else if (hw >= mpic->ipi_vecs[0]) {
@@ -1034,6 +1036,25 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	if (node && of_get_property(node, "big-endian", NULL) != NULL)
 		mpic->flags |= MPIC_BIG_ENDIAN;
 
+	/* Look for protected sources */
+	if (node) {
+		unsigned int psize, bits, mapsize;
+		const u32 *psrc =
+			of_get_property(node, "protected-sources", &psize);
+		if (psrc) {
+			psize /= 4;
+			bits = intvec_top + 1;
+			mapsize = BITS_TO_LONGS(bits) * sizeof(unsigned long);
+			mpic->protected = alloc_bootmem(mapsize);
+			BUG_ON(mpic->protected == NULL);
+			memset(mpic->protected, 0, mapsize);
+			for (i = 0; i < psize; i++) {
+				if (psrc[i] > intvec_top)
+					continue;
+				__set_bit(psrc[i], mpic->protected);
+			}
+		}
+	}
 
 #ifdef CONFIG_MPIC_WEIRD
 	mpic->hw_set = mpic_infos[MPIC_GET_REGSET(flags)];
@@ -1213,6 +1234,9 @@ void __init mpic_init(struct mpic *mpic)
 		u32 vecpri = MPIC_VECPRI_MASK | i |
 			(8 << MPIC_VECPRI_PRIORITY_SHIFT);
 		
+		/* check if protected */
+		if (mpic->protected && test_bit(i, mpic->protected))
+			continue;
 		/* init hw */
 		mpic_irq_write(i, MPIC_INFO(IRQ_VECTOR_PRI), vecpri);
 		mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION),
@@ -1407,6 +1431,14 @@ unsigned int mpic_get_one_irq(struct mpic *mpic)
 			mpic_eoi(mpic);
 		return NO_IRQ;
 	}
+	if (unlikely(mpic->protected && test_bit(src, mpic->protected))) {
+		if (printk_ratelimit())
+			printk(KERN_WARNING "%s: Got protected source %d !\n",
+			       mpic->name, (int)src);
+		mpic_eoi(mpic);
+		return NO_IRQ;
+	}
+
 	return irq_linear_revmap(mpic->irqhost, src);
 }
 
diff --git a/arch/powerpc/xmon/nonstdio.c b/arch/powerpc/xmon/nonstdio.c
index 78765833f4c0..bfac84fbe780 100644
--- a/arch/powerpc/xmon/nonstdio.c
+++ b/arch/powerpc/xmon/nonstdio.c
@@ -132,3 +132,8 @@ void xmon_printf(const char *format, ...)
 	va_end(args);
 	xmon_write(xmon_outbuf, n);
 }
+
+void xmon_puts(const char *str)
+{
+	xmon_write(str, strlen(str));
+}
diff --git a/arch/powerpc/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index 47cebbd2b1b1..23dd95f4599c 100644
--- a/arch/powerpc/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
@@ -5,10 +5,11 @@
 
 extern int xmon_putchar(int c);
 extern int xmon_getchar(void);
+extern void xmon_puts(const char *);
 extern char *xmon_gets(char *, int);
 extern void xmon_printf(const char *, ...);
 extern void xmon_map_scc(void);
 extern int xmon_expect(const char *str, unsigned long timeout);
-extern int xmon_write(void *ptr, int nb);
+extern int xmon_write(const void *ptr, int nb);
 extern int xmon_readchar(void);
 extern int xmon_read_poll(void);
diff --git a/arch/powerpc/xmon/start.c b/arch/powerpc/xmon/start.c
index 712552c4f242..8864de2af382 100644
--- a/arch/powerpc/xmon/start.c
+++ b/arch/powerpc/xmon/start.c
@@ -14,7 +14,7 @@ void xmon_map_scc(void)
 {
 }
 
-int xmon_write(void *ptr, int nb)
+int xmon_write(const void *ptr, int nb)
 {
 	return udbg_write(ptr, nb);
 }
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 669e6566ad70..121b04d165d1 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -833,7 +833,7 @@ cmds(struct pt_regs *excp)
 			mdelay(2000);
 			return cmd;
 		case '?':
-			printf(help_string);
+			xmon_puts(help_string);
 			break;
 		case 'b':
 			bpt_cmds();