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

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (61 commits)
  [POWERPC] Use udbg_early_init() on ppc32
  [POWERPC] Open Firmware serial port driver
  [POWERPC] Move MPIC smp routines into mpic.c
  [POWERPC] Cleanup pseries kexec code
  [POWERPC] Cleanup pseries smp initialisation code
  [POWERPC] Consolidate pseries platform header files into pseries.h
  [POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S
  [POWERPC] cell: pm_rtas_activat_signals routine cleanup
  [POWERPC] cell: PPU Oprofile cleanup patch
  [POWERPC] spufs: avoid accessing kernel memory through mmapped /mem node
  [POWERPC] spu sched: static timeslicing for SCHED_RR contexts
  [POWERPC] spu sched: use DECLARE_BITMAP
  [POWERPC] spu sched: forced preemption at execution
  [POWERPC] spu sched: update some comments
  [POWERPC] spu sched: simplity spu_remove_from_active_list
  [POWERPC] spufs: optimize spu_run
  [POWERPC] spufs: runqueue simplification
  [POWERPC] spufs: move prio to spu_context
  [POWERPC] spufs: state_mutex cleanup
  [POWERPC] spufs: simplify state_mutex
  ...

10 files changed, 137 insertions, 46 deletions

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 93f21aaf7c8..3678997339d 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -18,6 +18,7 @@
 #include <asm/io.h>
 #include <asm/lmb.h>
 #include <asm/processor.h>
+#include <asm/udbg.h>
 
 #define NO_SCROLL
 
@@ -912,3 +913,11 @@ static unsigned char vga_font[cmapsz] = {
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 0x00, 0x00, 0x00, 0x00,
 };
+
+void __init udbg_init_btext(void)
+{
+	/* If btext is enabled, we might have a BAT setup for early display,
+	 * thus we do enable some very basic udbg output
+	 */
+	udbg_putc = btext_drawchar;
+}
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index dd17dffbf05..7ec4ac77c0f 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -44,7 +44,7 @@ extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970MP(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_pa6t(void);
 extern void __restore_cpu_ppc970(void);
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index accb39d4991..a15d4b8cce4 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -32,8 +32,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
-#include <asm/ibm4xx.h>
-#include <asm/ibm44x.h>
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 66877bdfe0b..1f155d399d5 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -206,7 +206,8 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	rlwimi	r7,r3,16,4,15	/* Setup MAS0 = TLBSEL | ESEL(r3) */
 	mtspr	SPRN_MAS0,r7
 	tlbre
-	li	r6,0
+	mfspr	r6,SPRN_MAS1
+	rlwinm	r6,r6,0,2,0	/* clear IPROT */
 	mtspr	SPRN_MAS1,r6
 	tlbwe
 	/* Invalidate TLB1 */
@@ -248,6 +249,8 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	rlwimi	r7,r5,16,4,15	/* Setup MAS0 = TLBSEL | ESEL(r5) */
 	mtspr	SPRN_MAS0,r7
 	tlbre
+	mfspr	r8,SPRN_MAS1
+	rlwinm	r8,r8,0,2,0	/* clear IPROT */
 	mtspr	SPRN_MAS1,r8
 	tlbwe
 	/* Invalidate TLB1 */
@@ -889,7 +892,6 @@ load_up_spe:
 	REST_GPR(9, r11)
 	REST_GPR(12, r11)
 	lwz	r11,GPR11(r11)
-	SYNC
 	rfi
 
 /*
@@ -953,7 +955,6 @@ _GLOBAL(giveup_altivec)
 _GLOBAL(giveup_spe)
 	mfmsr	r5
 	oris	r5,r5,MSR_SPE@h
-	SYNC
 	mtmsr	r5			/* enable use of SPE now */
 	isync
 	cmpi	0,r3,0
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 89f46f37792..325f490a10c 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -124,6 +124,10 @@ static int __init add_legacy_soc_port(struct device_node *np,
 	if (get_property(np, "clock-frequency", NULL) == NULL)
 		return -1;
 
+	/* if rtas uses this device, don't try to use it as well */
+	if (get_property(np, "used-by-rtas", NULL) != NULL)
+		return -1;
+
 	/* Get the address */
 	addrp = of_get_address(soc_dev, 0, NULL, NULL);
 	if (addrp == NULL)
@@ -334,6 +338,17 @@ void __init find_legacy_serial_ports(void)
 		of_node_put(tsi);
 	}
 
+	/* First fill our array with opb bus ports */
+	for (np = NULL; (np = of_find_compatible_node(np, "serial", "ns16750")) != NULL;) {
+		struct device_node *opb = of_get_parent(np);
+		if (opb && !strcmp(opb->type, "opb")) {
+			index = add_legacy_soc_port(np, np);
+			if (index >= 0 && np == stdout)
+				legacy_serial_console = index;
+		}
+		of_node_put(opb);
+	}
+
 #ifdef CONFIG_PCI
 	/* Next, try to locate PCI ports */
 	for (np = NULL; (np = of_find_all_nodes(np));) {
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 520ef42f642..4fb5938ce6d 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2117,11 +2117,92 @@ static void __init fixup_device_tree_pmac(void)
 #define fixup_device_tree_pmac()
 #endif
 
+#ifdef CONFIG_PPC_EFIKA
+/* The current fw of the Efika has a device tree needs quite a few
+ * fixups to be compliant with the mpc52xx bindings. It's currently
+ * unknown if it will ever be compliant (come on bPlan ...) so we do fixups.
+ * NOTE that we (barely) tolerate it because the EFIKA was out before
+ * the bindings were finished, for any new boards -> RTFM ! */
+
+struct subst_entry {
+	char *path;
+	char *property;
+	void *value;
+	int value_len;
+};
+
+static void __init fixup_device_tree_efika(void)
+{
+	/* Substitution table */
+	#define prop_cstr(x) x, sizeof(x)
+	int prop_sound_irq[3] = { 2, 2, 0 };
+	int prop_bcomm_irq[3*16] = { 3,0,0, 3,1,0, 3,2,0, 3,3,0,
+	                             3,4,0, 3,5,0, 3,6,0, 3,7,0,
+	                             3,8,0, 3,9,0, 3,10,0, 3,11,0,
+	                             3,12,0, 3,13,0, 3,14,0, 3,15,0 };
+	struct subst_entry efika_subst_table[] = {
+		{ "/",			"device_type",	prop_cstr("efika") },
+		{ "/builtin",		"compatible",	prop_cstr("soc") },
+		{ "/builtin/ata",	"compatible",	prop_cstr("mpc5200b-ata\0mpc5200-ata"), },
+		{ "/builtin/bestcomm",	"compatible",	prop_cstr("mpc5200b-bestcomm\0mpc5200-bestcomm") },
+		{ "/builtin/bestcomm",	"interrupts",	prop_bcomm_irq, sizeof(prop_bcomm_irq) },
+		{ "/builtin/ethernet",	"compatible",	prop_cstr("mpc5200b-fec\0mpc5200-fec") },
+		{ "/builtin/pic",	"compatible",	prop_cstr("mpc5200b-pic\0mpc5200-pic") },
+		{ "/builtin/serial",	"compatible",	prop_cstr("mpc5200b-psc-uart\0mpc5200-psc-uart") },
+		{ "/builtin/sound",	"compatible",	prop_cstr("mpc5200b-psc-ac97\0mpc5200-psc-ac97") },
+		{ "/builtin/sound",	"interrupts",	prop_sound_irq, sizeof(prop_sound_irq) },
+		{ "/builtin/sram",	"compatible",	prop_cstr("mpc5200b-sram\0mpc5200-sram") },
+		{ "/builtin/sram",	"device_type",	prop_cstr("sram") },
+		{}
+	};
+	#undef prop_cstr
+
+	/* Vars */
+	u32 node;
+	char prop[64];
+	int rv, i;
+
+	/* Check if we're really running on a EFIKA */
+	node = call_prom("finddevice", 1, 1, ADDR("/"));
+	if (!PHANDLE_VALID(node))
+		return;
+
+	rv = prom_getprop(node, "model", prop, sizeof(prop));
+	if (rv == PROM_ERROR)
+		return;
+	if (strcmp(prop, "EFIKA5K2"))
+		return;
+
+	prom_printf("Applying EFIKA device tree fixups\n");
+
+	/* Process substitution table */
+	for (i=0; efika_subst_table[i].path; i++) {
+		struct subst_entry *se = &efika_subst_table[i];
+
+		node = call_prom("finddevice", 1, 1, ADDR(se->path));
+		if (!PHANDLE_VALID(node)) {
+			prom_printf("fixup_device_tree_efika: ",
+				"skipped entry %x - not found\n", i);
+			continue;
+		}
+
+		rv = prom_setprop(node, se->path, se->property,
+					se->value, se->value_len );
+		if (rv == PROM_ERROR)
+			prom_printf("fixup_device_tree_efika: ",
+				"skipped entry %x - setprop error\n", i);
+	}
+}
+#else
+#define fixup_device_tree_efika()
+#endif
+
 static void __init fixup_device_tree(void)
 {
 	fixup_device_tree_maple();
 	fixup_device_tree_chrp();
 	fixup_device_tree_pmac();
+	fixup_device_tree_efika();
 }
 
 static void __init prom_find_boot_cpu(void)
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 6a19fa40dce..44a6a3c47fe 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -116,12 +116,8 @@ unsigned long __init early_init(unsigned long dt_ptr)
  */
 void __init machine_init(unsigned long dt_ptr, unsigned long phys)
 {
-	/* If btext is enabled, we might have a BAT setup for early display,
-	 * thus we do enable some very basic udbg output
-	 */
-#ifdef CONFIG_BOOTX_TEXT
-	udbg_putc = btext_drawchar;
-#endif
+	/* Enable early debugging if any specified (see udbg.h) */
+	udbg_early_init();
 
 	/* Do some early initialization based on the flat device tree */
 	early_init_devtree(__va(dt_ptr));
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 0e8beca460a..924d692bc8f 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -78,29 +78,6 @@ int smt_enabled_at_boot = 1;
 
 static void (*crash_ipi_function_ptr)(struct pt_regs *) = NULL;
 
-#ifdef CONFIG_MPIC
-int __init smp_mpic_probe(void)
-{
-	int nr_cpus;
-
-	DBG("smp_mpic_probe()...\n");
-
-	nr_cpus = cpus_weight(cpu_possible_map);
-
-	DBG("nr_cpus: %d\n", nr_cpus);
-
-	if (nr_cpus > 1)
-		mpic_request_ipis();
-
-	return nr_cpus;
-}
-
-void __devinit smp_mpic_setup_cpu(int cpu)
-{
-	mpic_setup_this_cpu();
-}
-#endif /* CONFIG_MPIC */
-
 #ifdef CONFIG_PPC64
 void __devinit smp_generic_kick_cpu(int nr)
 {
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index 194a93eeb3e..7e0971868fc 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -49,6 +49,8 @@ void __init udbg_early_init(void)
 	udbg_init_debug_beat();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_PAS_REALMODE)
 	udbg_init_pas_realmode();
+#elif defined(CONFIG_BOOTX_TEXT)
+	udbg_init_btext();
 #endif
 }
 
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 50149ec6efa..e46c31b3664 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -49,24 +49,23 @@
 /* Max supported size for symbol names */
 #define MAX_SYMNAME	64
 
-#define VDSO32_MAXPAGES	(((0x3000 + PAGE_MASK) >> PAGE_SHIFT) + 2)
-#define VDSO64_MAXPAGES	(((0x3000 + PAGE_MASK) >> PAGE_SHIFT) + 2)
-
 extern char vdso32_start, vdso32_end;
 static void *vdso32_kbase = &vdso32_start;
-unsigned int vdso32_pages;
-static struct page *vdso32_pagelist[VDSO32_MAXPAGES];
+static unsigned int vdso32_pages;
+static struct page **vdso32_pagelist;
 unsigned long vdso32_sigtramp;
 unsigned long vdso32_rt_sigtramp;
 
 #ifdef CONFIG_PPC64
 extern char vdso64_start, vdso64_end;
 static void *vdso64_kbase = &vdso64_start;
-unsigned int vdso64_pages;
-static struct page *vdso64_pagelist[VDSO64_MAXPAGES];
+static unsigned int vdso64_pages;
+static struct page **vdso64_pagelist;
 unsigned long vdso64_rt_sigtramp;
 #endif /* CONFIG_PPC64 */
 
+static int vdso_ready;
+
 /*
  * The vdso data page (aka. systemcfg for old ppc64 fans) is here.
  * Once the early boot kernel code no longer needs to muck around
@@ -182,6 +181,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 	unsigned long vdso_base;
 	int rc;
 
+	if (!vdso_ready)
+		return 0;
+
 #ifdef CONFIG_PPC64
 	if (test_thread_flag(TIF_32BIT)) {
 		vdso_pagelist = vdso32_pagelist;
@@ -661,7 +663,7 @@ static void __init vdso_setup_syscall_map(void)
 }
 
 
-void __init vdso_init(void)
+static int __init vdso_init(void)
 {
 	int i;
 
@@ -716,11 +718,13 @@ void __init vdso_init(void)
 #ifdef CONFIG_PPC64
 		vdso64_pages = 0;
 #endif
-		return;
+		return 0;
 	}
 
 	/* Make sure pages are in the correct state */
-	BUG_ON(vdso32_pages + 2 > VDSO32_MAXPAGES);
+	vdso32_pagelist = kzalloc(sizeof(struct page *) * (vdso32_pages + 2),
+				  GFP_KERNEL);
+	BUG_ON(vdso32_pagelist == NULL);
 	for (i = 0; i < vdso32_pages; i++) {
 		struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
 		ClearPageReserved(pg);
@@ -731,7 +735,9 @@ void __init vdso_init(void)
 	vdso32_pagelist[i] = NULL;
 
 #ifdef CONFIG_PPC64
-	BUG_ON(vdso64_pages + 2 > VDSO64_MAXPAGES);
+	vdso64_pagelist = kzalloc(sizeof(struct page *) * (vdso64_pages + 2),
+				  GFP_KERNEL);
+	BUG_ON(vdso64_pagelist == NULL);
 	for (i = 0; i < vdso64_pages; i++) {
 		struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
 		ClearPageReserved(pg);
@@ -743,7 +749,13 @@ void __init vdso_init(void)
 #endif /* CONFIG_PPC64 */
 
 	get_page(virt_to_page(vdso_data));
+
+	smp_wmb();
+	vdso_ready = 1;
+
+	return 0;
 }
+arch_initcall(vdso_init);
 
 int in_gate_area_no_task(unsigned long addr)
 {