Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix smp barriers in test_and_{change,clear,set}_bit
  [MIPS] Fix IP27 build
  [MIPS] Fix modpost warnings by making start_secondary __cpuinit
  [MIPS] SMTC: Fix build error caused by nonsense code.
  [MIPS] SMTC: The MT ASE requires to initialize c0_pagemask and c0_wired.
  [MIPS] SMTC: Don't continue in set_vi_srs_handler on detected bad arguments.
  [MIPS] SMTC: Fix warning.
  [MIPS] Wire up utimensat, signalfd, timerfd, eventfd
  [MIPS] Atlas: Fix build.
  [MIPS] Always install the DSP exception handler.
  [MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
  [MIPS] Fix KMODE for the R3000

11 files changed, 36 insertions, 29 deletions

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 0c9a9ff8cd2..ae985d1fcca 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -657,7 +657,11 @@ einval:	li	v0, -EINVAL
 	sys	sys_getcpu		3
 	sys	sys_epoll_pwait		6
 	sys	sys_ioprio_set		3
-	sys	sys_ioprio_get		2
+	sys	sys_ioprio_get		2	/* 4315 */
+	sys	sys_utimensat		4
+	sys	sys_signalfd		3
+	sys	sys_timerfd		4
+	sys	sys_eventfd		1
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 23f3b118f71..7bcd5a1a85f 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -473,4 +473,8 @@ sys_call_table:
 	PTR	sys_epoll_pwait
 	PTR	sys_ioprio_set
 	PTR	sys_ioprio_get
+	PTR	sys_utimensat			/* 5275 */
+	PTR	sys_signalfd
+	PTR	sys_timerfd
+	PTR	sys_eventfd
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 1631035ffc2..532a2f3b42f 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -399,4 +399,8 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_epoll_pwait
 	PTR	sys_ioprio_set
 	PTR	sys_ioprio_get
+	PTR	compat_sys_utimensat
+	PTR	compat_sys_signalfd		/* 5280 */
+	PTR	compat_sys_timerfd
+	PTR	sys_eventfd
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 2aa99426ac1..6bbe0f4ed8b 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -521,4 +521,8 @@ sys_call_table:
 	PTR	compat_sys_epoll_pwait
 	PTR	sys_ioprio_set
 	PTR	sys_ioprio_get			/* 4315 */
+	PTR	compat_sys_utimensat
+	PTR	compat_sys_signalfd
+	PTR	compat_sys_timerfd
+	PTR	sys_eventfd
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index c46e479c992..67edfa7ed93 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -68,7 +68,7 @@ extern ATTRIB_NORET void cpu_idle(void);
  * First C code run on the secondary CPUs after being started up by
  * the master.
  */
-asmlinkage void start_secondary(void)
+asmlinkage __cpuinit void start_secondary(void)
 {
 	unsigned int cpu;
 
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S
index 921207c4a83..20938a4cb52 100644
--- a/arch/mips/kernel/smtc-asm.S
+++ b/arch/mips/kernel/smtc-asm.S
@@ -121,10 +121,7 @@ LEAF(self_ipi)
 	subu	t1,sp,PT_SIZE
 	sw	ra,PT_EPC(t1)
 	sw	a0,PT_PADSLOT4(t1)
-	LONG_L	s0, TI_REGS($28)
-	LONG_S	sp, TI_REGS($28)
 	la	t2,ipi_decode
-	LONG_S	s0, TI_REGS($28)
 	sw	t2,PT_PADSLOT5(t1)
 	/* Save pre-disable value of TCStatus */
 	sw	t0,PT_TCSTATUS(t1)
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index b361edb83dc..21eb5993a19 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -611,12 +611,12 @@ void smtc_cpus_done(void)
 int setup_irq_smtc(unsigned int irq, struct irqaction * new,
 			unsigned long hwmask)
 {
+#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
 	unsigned int vpe = current_cpu_data.vpe_id;
 
-	irq_hwmask[irq] = hwmask;
-#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
 	vpemask[vpe][irq - MIPSCPU_INT_BASE] = 1;
 #endif
+	irq_hwmask[irq] = hwmask;
 
 	return setup_irq(irq, new);
 }
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 3f58b6ac135..a7a17eb9bfc 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -11,6 +11,7 @@
  * Copyright (C) 2000, 01 MIPS Technologies, Inc.
  * Copyright (C) 2002, 2003, 2004, 2005  Maciej W. Rozycki
  */
+#include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/module.h>
@@ -1190,8 +1191,8 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
 
 		memcpy (b, &except_vec_vi, handler_len);
 #ifdef CONFIG_MIPS_MT_SMTC
-		if (n > 7)
-			printk("Vector index %d exceeds SMTC maximum\n", n);
+		BUG_ON(n > 7);	/* Vector index %d exceeds SMTC maximum. */
+
 		w = (u32 *)(b + mori_offset);
 		*w = (*w & 0xffff0000) | (0x100 << n);
 #endif /* CONFIG_MIPS_MT_SMTC */
@@ -1383,6 +1384,13 @@ void __init per_cpu_trap_init(void)
 		cpu_cache_init();
 		tlb_init();
 #ifdef CONFIG_MIPS_MT_SMTC
+	} else if (!secondaryTC) {
+		/*
+		 * First TC in non-boot VPE must do subset of tlb_init()
+		 * for MMU countrol registers.
+		 */
+		write_c0_pagemask(PM_DEFAULT_MASK);
+		write_c0_wired(0);
 	}
 #endif /* CONFIG_MIPS_MT_SMTC */
 }
@@ -1531,8 +1539,7 @@ void __init trap_init(void)
 	if (cpu_has_mipsmt)
 		set_except_vector(25, handle_mt);
 
-	if (cpu_has_dsp)
-		set_except_vector(26, handle_dsp);
+	set_except_vector(26, handle_dsp);
 
 	if (cpu_has_vce)
 		/* Special exception: R4[04]00 uses also the divec space. */
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
index dfa0acbd7fc..9f49da95aac 100644
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -248,14 +248,13 @@ void __init arch_init_irq(void)
 	case MIPS_REVISION_CORID_CORE_24K:
 	case MIPS_REVISION_CORID_CORE_EMUL_MSC:
 		if (cpu_has_veic)
-			init_msc_irqs (MSC01E_INT_BASE,
+			init_msc_irqs (MSC01E_INT_BASE, MSC01E_INT_BASE,
 				       msc_eicirqmap, msc_nr_eicirqs);
 		else
-			init_msc_irqs (MSC01C_INT_BASE,
+			init_msc_irqs (MSC01E_INT_BASE, MSC01C_INT_BASE,
 				       msc_irqmap, msc_nr_irqs);
 	}
 
-
 	if (cpu_has_veic) {
 		set_vi_handler (MSC01E_INT_ATLAS, atlas_hw0_irqdispatch);
 		setup_irq (MSC01E_INT_BASE + MSC01E_INT_ATLAS, &atlasirq);
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c
index 37735bfc3af..b41db9e7ab1 100644
--- a/arch/mips/mips-boards/generic/time.c
+++ b/arch/mips/mips-boards/generic/time.c
@@ -88,8 +88,6 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
 	 *  the general MIPS timer_interrupt routine.
 	 */
 
-	int vpflags;
-
 	/*
 	 * We could be here due to timer interrupt,
 	 * perf counter overflow, or both.
@@ -98,15 +96,6 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
 		perf_irq();
 
 	if (read_c0_cause() & (1 << 30)) {
-		/* If timer interrupt, make it de-assert */
-		write_c0_compare (read_c0_count() - 1);
-		/*
-		 * DVPE is necessary so long as cross-VPE interrupts
-		 * are done via read-modify-write of Cause register.
-		 */
-		vpflags = dvpe();
-		clear_c0_cause(CPUCTR_IMASKBIT);
-		evpe(vpflags);
 		/*
 		 * There are things we only want to do once per tick
 		 * in an "MP" system.   One TC of each VPE will take
@@ -115,14 +104,13 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
 		 * the tick on VPE 0 to run the full timer_interrupt().
 		 */
 		if (cpu_data[cpu].vpe_id == 0) {
-				timer_interrupt(irq, NULL);
-				smtc_timer_broadcast(cpu_data[cpu].vpe_id);
+			timer_interrupt(irq, NULL);
 		} else {
 			write_c0_compare(read_c0_count() +
 			                 (mips_hpt_frequency/HZ));
 			local_timer_interrupt(irq, dev_id);
-			smtc_timer_broadcast(cpu_data[cpu].vpe_id);
 		}
+		smtc_timer_broadcast(cpu_data[cpu].vpe_id);
 	}
 #else /* CONFIG_MIPS_MT_SMTC */
 	int r2 = cpu_has_mips_r2;
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index fe8a1066aec..e5e023f50a0 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -517,7 +517,7 @@ void __init paging_init(void)
 		pfn_t start_pfn = slot_getbasepfn(node, 0);
 		pfn_t end_pfn = node_getmaxclick(node) + 1;
 
-		zones_size[ZONE_DMA] = end_pfn - start_pfn;
+		zones_size[ZONE_NORMAL] = end_pfn - start_pfn;
 		free_area_init_node(node, NODE_DATA(node),
 				zones_size, start_pfn, NULL);