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

Pull MIPS fixes from Ralf Baechle:
 "MIPS fixes for 3.11.  Half of then is for Netlogic the remainder
  touches things across arch/mips.

  Nothing really dramatic and by rc1 standards MIPS will be in fairly
  good shape with this applied.  Tested by building all MIPS defconfigs
  of which with this pull request four platforms won't build.  And yes,
  it boots also on my favorite test systems"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: kvm: Kconfig: Drop HAVE_KVM dependency from VIRTUALIZATION
  MIPS: Octeon: Fix DT pruning bug with pip ports
  MIPS: KVM: Mark KVM_GUEST (T&E KVM) as BROKEN_ON_SMP
  MIPS: tlbex: fix broken build in v3.11-rc1
  MIPS: Netlogic: Add XLP PIC irqdomain
  MIPS: Netlogic: Fix USB block's coherent DMA mask
  MIPS: tlbex: Fix typo in r3000 tlb store handler
  MIPS: BMIPS: Fix thinko to release slave TP from reset
  MIPS: Delete dead invocation of exception_exit().

10 files changed, 69 insertions, 21 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 4758a8fd3e99..c3abed332301 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1702,6 +1702,7 @@ endchoice
 
 config KVM_GUEST
 	bool "KVM Guest Kernel"
+	depends on BROKEN_ON_SMP
 	help
 	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode
 
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index 7b746e7bf7a1..1830874ff1e2 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -334,9 +334,10 @@ static void __init octeon_fdt_pip_iface(int pip, int idx, u64 *pmac)
 	char name_buffer[20];
 	int iface;
 	int p;
-	int count;
+	int count = 0;
 
-	count = cvmx_helper_interface_enumerate(idx);
+	if (cvmx_helper_interface_enumerate(idx) == 0)
+		count = cvmx_helper_ports_on_interface(idx);
 
 	snprintf(name_buffer, sizeof(name_buffer), "interface@%d", idx);
 	iface = fdt_subnode_offset(initial_boot_params, pip, name_buffer);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 76f31353e718..c0bb4d59076a 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -173,7 +173,7 @@ static void bmips_boot_secondary(int cpu, struct task_struct *idle)
 	else {
 #if defined(CONFIG_CPU_BMIPS4350) || defined(CONFIG_CPU_BMIPS4380)
 		/* Reset slave TP1 if booting from TP0 */
-		if (cpu_logical_map(cpu) == 0)
+		if (cpu_logical_map(cpu) == 1)
 			set_c0_brcm_cmt_ctrl(0x01);
 #elif defined(CONFIG_CPU_BMIPS5000)
 		if (cpu & 0x01)
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c89568f88bfd..aec3408edd4b 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1242,7 +1242,6 @@ asmlinkage void do_mcheck(struct pt_regs *regs)
 	panic("Caught Machine Check exception - %scaused by multiple "
 	      "matching entries in the TLB.",
 	      (multi_match) ? "" : "not ");
-	exception_exit(prev_state);
 }
 
 asmlinkage void do_mt(struct pt_regs *regs)
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 2c15590e55f7..30e334e823bd 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -5,7 +5,6 @@ source "virt/kvm/Kconfig"
 
 menuconfig VIRTUALIZATION
 	bool "Virtualization"
-	depends on HAVE_KVM
 	---help---
 	  Say Y here to get to see options for using your Linux host to run
 	  other operating systems inside virtual machines (guests).
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 34fce2b2095b..556cb4815770 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1456,7 +1456,7 @@ static void build_r4000_setup_pgd(void)
 {
 	const int a0 = 4;
 	const int a1 = 5;
-	u32 *p = tlbmiss_handler_setup_pgd_array;
+	u32 *p = tlbmiss_handler_setup_pgd;
 	const int tlbmiss_handler_setup_pgd_size =
 		tlbmiss_handler_setup_pgd_end - tlbmiss_handler_setup_pgd;
 	struct uasm_label *l = labels;
@@ -1793,7 +1793,7 @@ static void build_r3000_tlb_store_handler(void)
 	uasm_i_j(&p, (unsigned long)tlb_do_page_fault_1 & 0x0fffffff);
 	uasm_i_nop(&p);
 
-	if (p >= handle_tlbs)
+	if (p >= handle_tlbs_end)
 		panic("TLB store handler fastpath space exceeded");
 
 	uasm_resolve_relocs(relocs, labels);
diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c
index 73facb2b33bb..1c7e3a1b81ab 100644
--- a/arch/mips/netlogic/common/irq.c
+++ b/arch/mips/netlogic/common/irq.c
@@ -40,6 +40,10 @@
 #include <linux/slab.h>
 #include <linux/irq.h>
 
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
 #include <asm/errno.h>
 #include <asm/signal.h>
 #include <asm/ptrace.h>
@@ -223,17 +227,6 @@ static void nlm_init_node_irqs(int node)
 	nodep->irqmask = irqmask;
 }
 
-void __init arch_init_irq(void)
-{
-	/* Initialize the irq descriptors */
-	nlm_init_percpu_irqs();
-	nlm_init_node_irqs(0);
-	write_c0_eimr(nlm_current_node()->irqmask);
-#if defined(CONFIG_CPU_XLR)
-	nlm_setup_fmn_irq();
-#endif
-}
-
 void nlm_smp_irq_init(int hwcpuid)
 {
 	int node, cpu;
@@ -266,3 +259,56 @@ asmlinkage void plat_irq_dispatch(void)
 	/* top level irq handling */
 	do_IRQ(nlm_irq_to_xirq(node, i));
 }
+
+#ifdef CONFIG_OF
+static struct irq_domain *xlp_pic_domain;
+
+static const struct irq_domain_ops xlp_pic_irq_domain_ops = {
+	.xlate = irq_domain_xlate_onetwocell,
+};
+
+static int __init xlp_of_pic_init(struct device_node *node,
+					struct device_node *parent)
+{
+	const int n_picirqs = PIC_IRT_LAST_IRQ - PIC_IRQ_BASE + 1;
+	struct resource res;
+	int socid, ret;
+
+	/* we need a hack to get the PIC's SoC chip id */
+	ret = of_address_to_resource(node, 0, &res);
+	if (ret < 0) {
+		pr_err("PIC %s: reg property not found!\n", node->name);
+		return -EINVAL;
+	}
+	socid = (res.start >> 18) & 0x3;
+	xlp_pic_domain = irq_domain_add_legacy(node, n_picirqs,
+		nlm_irq_to_xirq(socid, PIC_IRQ_BASE), PIC_IRQ_BASE,
+		&xlp_pic_irq_domain_ops, NULL);
+	if (xlp_pic_domain == NULL) {
+		pr_err("PIC %s: Creating legacy domain failed!\n", node->name);
+		return -EINVAL;
+	}
+	pr_info("Node %d: IRQ domain created for PIC@%pa\n", socid,
+							&res.start);
+	return 0;
+}
+
+static struct of_device_id __initdata xlp_pic_irq_ids[] = {
+	{ .compatible = "netlogic,xlp-pic", .data = xlp_of_pic_init },
+	{},
+};
+#endif
+
+void __init arch_init_irq(void)
+{
+	/* Initialize the irq descriptors */
+	nlm_init_percpu_irqs();
+	nlm_init_node_irqs(0);
+	write_c0_eimr(nlm_current_node()->irqmask);
+#if defined(CONFIG_CPU_XLR)
+	nlm_setup_fmn_irq();
+#endif
+#if defined(CONFIG_OF)
+	of_irq_init(xlp_pic_irq_ids);
+#endif
+}
diff --git a/arch/mips/netlogic/dts/xlp_evp.dts b/arch/mips/netlogic/dts/xlp_evp.dts
index e14f42308064..06407033678e 100644
--- a/arch/mips/netlogic/dts/xlp_evp.dts
+++ b/arch/mips/netlogic/dts/xlp_evp.dts
@@ -76,10 +76,11 @@
 			};
 		};
 		pic: pic@4000 {
-			interrupt-controller;
+			compatible = "netlogic,xlp-pic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <0 0x4000 0x200>;
+			interrupt-controller;
 		};
 
 		nor_flash@1,0 {
diff --git a/arch/mips/netlogic/dts/xlp_svp.dts b/arch/mips/netlogic/dts/xlp_svp.dts
index 8af4bdbe5d99..9c5db102df53 100644
--- a/arch/mips/netlogic/dts/xlp_svp.dts
+++ b/arch/mips/netlogic/dts/xlp_svp.dts
@@ -76,10 +76,11 @@
 			};
 		};
 		pic: pic@4000 {
-			interrupt-controller;
+			compatible = "netlogic,xlp-pic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <0 0x4000 0x200>;
+			interrupt-controller;
 		};
 
 		nor_flash@1,0 {
diff --git a/arch/mips/netlogic/xlp/usb-init.c b/arch/mips/netlogic/xlp/usb-init.c
index 9c401dd78337..ef3897ef0dc7 100644
--- a/arch/mips/netlogic/xlp/usb-init.c
+++ b/arch/mips/netlogic/xlp/usb-init.c
@@ -119,7 +119,7 @@ static u64 xlp_usb_dmamask = ~(u32)0;
 static void nlm_usb_fixup_final(struct pci_dev *dev)
 {
 	dev->dev.dma_mask		= &xlp_usb_dmamask;
-	dev->dev.coherent_dma_mask	= DMA_BIT_MASK(64);
+	dev->dev.coherent_dma_mask	= DMA_BIT_MASK(32);
 	switch (dev->devfn) {
 	case 0x10:
 		dev->irq = PIC_EHCI_0_IRQ;