Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (23 commits)
  [SPARC64]: virt_to_real_irq_table --> virt_irq_table
  [SPARC64]: virt_irq --> bucket mapping no longer necessary
  [SPARC64]: Kill ugly __bucket() macro.
  [SPARC64]: Kill ugly __irq_ino() macro.
  [SPARC64]: Only use bypass accesses to INO buckets.
  [SPARC64]: Update defconfig.
  [SPARC64]: Use sun4v VIRQ interfaces as intended.
  [SPARC64]: Allocate ivector_table dynamically.
  [SPARC64]: Access ivector_table[] using physical addresses.
  [SPARC64]: Make IVEC pointers 64-bit.
  [SPARC64]: Fix register usage in xor_raid_4().
  [SPARC64]: Kill pci_memspace_mask.
  [SPARC64]: Consolidate MSI support code.
  [SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.
  [SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes.
  [SPARC/64]: Prepare to remove of_platform_driver name.
  [SPARC32]: Add irqflags.h to sparc32 and use it from generic code.
  [SPARC64]: beautify vmlinux.lds
  [SPARC]: beautify vmlinux.lds
  [SPARC64]: Enable MSI on sun4u Fire PCI-E controllers.
  ...

26 files changed, 1451 insertions, 903 deletions

diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 120f6b52934..87dd496f15e 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -1,5 +1,9 @@
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+	bool
+	default y
+
 source "lib/Kconfig.debug"
 
 config DEBUG_STACK_USAGE
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index b76dc03fc31..722d67d3296 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -56,7 +56,7 @@
 #define SMP_NOP2
 #define SMP_NOP3
 #endif /* SMP */
-unsigned long __local_irq_save(void)
+unsigned long __raw_local_irq_save(void)
 {
 	unsigned long retval;
 	unsigned long tmp;
@@ -74,7 +74,7 @@ unsigned long __local_irq_save(void)
 	return retval;
 }
 
-void local_irq_enable(void)
+void raw_local_irq_enable(void)
 {
 	unsigned long tmp;
 
@@ -89,7 +89,7 @@ void local_irq_enable(void)
 		: "memory");
 }
 
-void local_irq_restore(unsigned long old_psr)
+void raw_local_irq_restore(unsigned long old_psr)
 {
 	unsigned long tmp;
 
@@ -105,9 +105,9 @@ void local_irq_restore(unsigned long old_psr)
 		: "memory");
 }
 
-EXPORT_SYMBOL(__local_irq_save);
-EXPORT_SYMBOL(local_irq_enable);
-EXPORT_SYMBOL(local_irq_restore);
+EXPORT_SYMBOL(__raw_local_irq_save);
+EXPORT_SYMBOL(raw_local_irq_enable);
+EXPORT_SYMBOL(raw_local_irq_restore);
 
 /*
  * Dave Redman (djhr@tadpole.co.uk)
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 36383f73d68..fb2caef79ce 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -588,7 +588,10 @@ __setup("of_debug=", of_debug);
 int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
 {
 	/* initialize common driver fields */
-	drv->driver.name = drv->name;
+	if (!drv->driver.name)
+		drv->driver.name = drv->name;
+	if (!drv->driver.owner)
+		drv->driver.owner = drv->owner;
 	drv->driver.bus = bus;
 
 	/* register with core */
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 6a251332162..4bf78a5e8e0 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -347,9 +347,11 @@ static struct of_device_id clock_match[] = {
 };
 
 static struct of_platform_driver clock_driver = {
-	.name		= "clock",
 	.match_table	= clock_match,
 	.probe		= clock_probe,
+	.driver		= {
+		.name	= "clock",
+	},
 };
 
 
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 15109c156e8..a8b4200f9cc 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -1,6 +1,7 @@
 /* ld script to make SparcLinux kernel */
 
 #include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
 
 OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc")
 OUTPUT_ARCH(sparc)
@@ -8,84 +9,104 @@ ENTRY(_start)
 jiffies = jiffies_64 + 4;
 SECTIONS
 {
-  . = 0x10000 + SIZEOF_HEADERS;
-  .text 0xf0004000 :
-  {
-    _text = .;
-    TEXT_TEXT
-    SCHED_TEXT
-    LOCK_TEXT
-    *(.gnu.warning)
-  } =0
-  _etext = .;
-  PROVIDE (etext = .);
-  RODATA
-  .data    :
-  {
-    DATA_DATA
-    CONSTRUCTORS
-  }
-  .data1   : { *(.data1) }
-  _edata  =  .;
-  PROVIDE (edata = .);
-  __start___fixup = .;
-  .fixup   : { *(.fixup) }
-  __stop___fixup = .;
-  __start___ex_table = .;
-  __ex_table : { *(__ex_table) }
-  __stop___ex_table = .;
+	. = 0x10000 + SIZEOF_HEADERS;
+	.text 0xf0004000 :
+	{
+		_text = .;
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+		*(.gnu.warning)
+	} = 0
+	_etext = .;
+	PROVIDE (etext = .);
+	RODATA
+	.data :	{
+		DATA_DATA
+		CONSTRUCTORS
+	}
+	.data1 : {
+		*(.data1)
+	}
+	_edata = .;
+	PROVIDE (edata = .);
 
-  NOTES
+	.fixup : {
+		__start___fixup = .;
+		*(.fixup)
+		__stop___fixup = .;
+	}
+	__ex_table : {
+		__start___ex_table = .;
+		*(__ex_table)
+		__stop___ex_table = .;
+	}
 
-  . = ALIGN(4096);
-  __init_begin = .;
-  _sinittext = .;
-  .init.text : { 
-	*(.init.text)
-  }
-  _einittext = .;
-  __init_text_end = .;
-  .init.data : { *(.init.data) }
-  . = ALIGN(16);
-  __setup_start = .;
-  .init.setup : { *(.init.setup) }
-  __setup_end = .;
-  __initcall_start = .;
-  .initcall.init : {
-	INITCALLS
-  }
-  __initcall_end = .;
-  __con_initcall_start = .;
-  .con_initcall.init : { *(.con_initcall.init) }
-  __con_initcall_end = .;
-  SECURITY_INIT
+	NOTES
+
+	. = ALIGN(PAGE_SIZE);
+	__init_begin = .;
+	.init.text : {
+		_sinittext = .;
+		*(.init.text)
+		_einittext = .;
+	}
+	__init_text_end = .;
+	.init.data : {
+		*(.init.data)
+	}
+	. = ALIGN(16);
+	.init.setup : {
+		__setup_start = .;
+		*(.init.setup)
+		__setup_end = .;
+	}
+	.initcall.init : {
+		__initcall_start = .;
+		INITCALLS
+	__initcall_end = .;
+	}
+	.con_initcall.init : {
+		__con_initcall_start = .;
+		*(.con_initcall.init)
+		__con_initcall_end = .;
+	}
+	SECURITY_INIT
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  . = ALIGN(4096);
-  __initramfs_start = .;
-  .init.ramfs : { *(.init.ramfs) }
-  __initramfs_end = .;
+	. = ALIGN(PAGE_SIZE);
+	.init.ramfs : {
+	__initramfs_start = .;
+		*(.init.ramfs)
+	__initramfs_end = .;
+	}
 #endif
 
-  PERCPU(4096)
-  . = ALIGN(4096);
-  __init_end = .;
-  . = ALIGN(32);
-  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
-
-  __bss_start = .;
-  .sbss      : { *(.sbss) *(.scommon) }
-  .bss       :
-  {
-   *(.dynbss)
-   *(.bss)
-   *(COMMON)
-  }
-  _end = . ;
-  PROVIDE (end = .);
-  /DISCARD/ : { *(.exit.text) *(.exit.data) *(.exitcall.exit) }
+	PERCPU(PAGE_SIZE)
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;
+	. = ALIGN(32);
+	.data.cacheline_aligned : {
+		*(.data.cacheline_aligned)
+	}
 
-  STABS_DEBUG
+	__bss_start = .;
+	.sbss : {
+		*(.sbss)
+		*(.scommon) }
+	.bss : {
+		*(.dynbss)
+		*(.bss)
+		*(COMMON)
+	}
+	_end = . ;
+	PROVIDE (end = .);
+	/DISCARD/ : {
+		*(.exit.text)
+		*(.exit.data)
+		*(.exitcall.exit)
+	}
 
-  DWARF_DEBUG
+	STABS_DEBUG
+	DWARF_DEBUG
 }
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index 7d07297db87..1aa2c4048e4 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23-rc6
-# Sun Sep 16 09:52:11 2007
+# Linux kernel version: 2.6.23
+# Sat Oct 13 21:53:54 2007
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -69,7 +69,6 @@ CONFIG_FUTEX=y
 CONFIG_ANON_INODES=y
 CONFIG_EPOLL=y
 CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_VM_EVENT_COUNTERS=y
@@ -89,6 +88,7 @@ CONFIG_KMOD=y
 CONFIG_BLOCK=y
 CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_BLK_DEV_BSG=y
+CONFIG_BLOCK_COMPAT=y
 
 #
 # IO Schedulers
@@ -111,6 +111,7 @@ CONFIG_GENERIC_HARDIRQS=y
 CONFIG_TICK_ONESHOT=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 # CONFIG_SMP is not set
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_TABLE=m
@@ -119,6 +120,8 @@ CONFIG_CPU_FREQ_STAT=m
 CONFIG_CPU_FREQ_STAT_DETAILS=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
 # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
 CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=m
 CONFIG_CPU_FREQ_GOV_USERSPACE=m
@@ -213,6 +216,7 @@ CONFIG_INET_TUNNEL=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 CONFIG_INET_XFRM_MODE_BEET=y
+CONFIG_INET_LRO=y
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -304,6 +308,7 @@ CONFIG_NET_TCPPROBE=m
 #
 # Generic Driver Options
 #
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_STANDALONE=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 CONFIG_FW_LOADER=y
@@ -355,6 +360,11 @@ CONFIG_IDE_PROC_FS=y
 # IDE chipset support/bugfixes
 #
 CONFIG_IDE_GENERIC=y
+# CONFIG_BLK_DEV_PLATFORM is not set
+
+#
+# PCI IDE chipsets support
+#
 CONFIG_BLK_DEV_IDEPCI=y
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 CONFIG_IDEPCI_PCIBUS_ORDER=y
@@ -391,7 +401,6 @@ CONFIG_BLK_DEV_ALI15X3=y
 # CONFIG_BLK_DEV_TC86C001 is not set
 # CONFIG_IDE_ARM is not set
 CONFIG_BLK_DEV_IDEDMA=y
-# CONFIG_IDEDMA_IVB is not set
 # CONFIG_BLK_DEV_HD is not set
 
 #
@@ -505,6 +514,8 @@ CONFIG_DUMMY=m
 # CONFIG_MACVLAN is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_IP1000 is not set
 # CONFIG_ARCNET is not set
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
@@ -518,13 +529,16 @@ CONFIG_CASSINI=m
 # CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_NET_TULIP is not set
 # CONFIG_HP100 is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
 # CONFIG_AMD8111_ETH is not set
 # CONFIG_ADAPTEC_STARFIRE is not set
 # CONFIG_B44 is not set
 # CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
 # CONFIG_EEPRO100 is not set
 # CONFIG_E100 is not set
 # CONFIG_FEALNX is not set
@@ -543,6 +557,7 @@ CONFIG_NETDEV_1000=y
 CONFIG_E1000=m
 CONFIG_E1000_NAPI=y
 # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
+# CONFIG_E1000E is not set
 # CONFIG_MYRI_SBUS is not set
 # CONFIG_NS83820 is not set
 # CONFIG_HAMACHI is not set
@@ -560,11 +575,14 @@ CONFIG_BNX2=m
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
 # CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
 # CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
 # CONFIG_TR is not set
 
 #
@@ -820,6 +838,12 @@ CONFIG_HWMON=y
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
 #
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
 # Multifunction device drivers
 #
 # CONFIG_MFD_SM501 is not set
@@ -1399,6 +1423,7 @@ CONFIG_ASYNC_MEMCPY=m
 CONFIG_ASYNC_XOR=m
 CONFIG_CRYPTO=y
 CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_AEAD=m
 CONFIG_CRYPTO_BLKCIPHER=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_MANAGER=y
@@ -1417,6 +1442,7 @@ CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_XTS=m
 # CONFIG_CRYPTO_CRYPTD is not set
 CONFIG_CRYPTO_DES=y
 CONFIG_CRYPTO_FCRYPT=m
@@ -1431,11 +1457,13 @@ CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_KHAZAD=m
 CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_CRC32C=m
 CONFIG_CRYPTO_CAMELLIA=m
 CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_AUTHENC=m
 CONFIG_CRYPTO_HW=y
 
 #
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index 40d2f3aae91..112c46e6657 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-$(CONFIG_PCI)	 += ebus.o isa.o pci_common.o \
 			    pci_psycho.o pci_sabre.o pci_schizo.o \
 			    pci_sun4v.o pci_sun4v_asm.o pci_fire.o
+obj-$(CONFIG_PCI_MSI)	+= pci_msi.o
 obj-$(CONFIG_SMP)	 += smp.o trampoline.o hvtramp.o
 obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o
 obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c
index 7b379761e9f..c55f0293eac 100644
--- a/arch/sparc64/kernel/auxio.c
+++ b/arch/sparc64/kernel/auxio.c
@@ -148,9 +148,11 @@ static int __devinit auxio_probe(struct of_device *dev, const struct of_device_i
 }
 
 static struct of_platform_driver auxio_driver = {
-	.name		= "auxio",
 	.match_table	= auxio_match,
 	.probe		= auxio_probe,
+	.driver		= {
+		.name	= "auxio",
+	},
 };
 
 static int __init auxio_init(void)
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 8059531bf0a..c9b0d7af64a 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -429,16 +429,16 @@ do_ivec:
 	stxa		%g0, [%g0] ASI_INTR_RECEIVE
 	membar		#Sync
 
-	sethi		%hi(ivector_table), %g2
-	sllx		%g3, 3, %g3
-	or		%g2, %lo(ivector_table), %g2
+	sethi		%hi(ivector_table_pa), %g2
+	ldx		[%g2 + %lo(ivector_table_pa)], %g2
+	sllx		%g3, 4, %g3
 	add		%g2, %g3, %g3
 
-	TRAP_LOAD_IRQ_WORK(%g6, %g1)
+	TRAP_LOAD_IRQ_WORK_PA(%g6, %g1)
 
-	lduw		[%g6], %g5		/* g5 = irq_work(cpu) */
-	stw		%g5, [%g3 + 0x00]	/* bucket->irq_chain = g5 */
-	stw		%g3, [%g6]		/* irq_work(cpu) = bucket */
+	ldx		[%g6], %g5
+	stxa		%g5, [%g3] ASI_PHYS_USE_EC
+	stx		%g3, [%g6]
 	wr		%g0, 1 << PIL_DEVICE_IRQ, %set_softint
 	retry
 do_ivec_xcall:
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 23956096b3b..f3922e5a89f 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -21,7 +21,6 @@
 #include <linux/seq_file.h>
 #include <linux/bootmem.h>
 #include <linux/irq.h>
-#include <linux/msi.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -43,6 +42,7 @@
 #include <asm/auxio.h>
 #include <asm/head.h>
 #include <asm/hypervisor.h>
+#include <asm/cacheflush.h>
 
 /* UPA nodes send interrupt packet to UltraSparc with first data reg
  * value low 5 (7 on Starfire) bits holding the IRQ identifier being
@@ -52,86 +52,128 @@
  * To make processing these packets efficient and race free we use
  * an array of irq buckets below.  The interrupt vector handler in
  * entry.S feeds incoming packets into per-cpu pil-indexed lists.
- * The IVEC handler does not need to act atomically, the PIL dispatch
- * code uses CAS to get an atomic snapshot of the list and clear it
- * at the same time.
  *
  * If you make changes to ino_bucket, please update hand coded assembler
  * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
  */
 struct ino_bucket {
-	/* Next handler in per-CPU IRQ worklist.  We know that
-	 * bucket pointers have the high 32-bits clear, so to
-	 * save space we only store the bits we need.
-	 */
-/*0x00*/unsigned int irq_chain;
+/*0x00*/unsigned long __irq_chain_pa;
 
 	/* Virtual interrupt number assigned to this INO.  */
-/*0x04*/unsigned int virt_irq;
+/*0x08*/unsigned int __virt_irq;
+/*0x0c*/unsigned int __pad;
 };
 
 #define NUM_IVECS	(IMAP_INR + 1)
-struct ino_bucket ivector_table[NUM_IVECS] __attribute__ ((aligned (SMP_CACHE_BYTES)));
-
-#define __irq_ino(irq) \
-        (((struct ino_bucket *)(unsigned long)(irq)) - &ivector_table[0])
-#define __bucket(irq) ((struct ino_bucket *)(unsigned long)(irq))
-#define __irq(bucket) ((unsigned int)(unsigned long)(bucket))
-
-/* This has to be in the main kernel image, it cannot be
- * turned into per-cpu data.  The reason is that the main
- * kernel image is locked into the TLB and this structure
- * is accessed from the vectored interrupt trap handler.  If
- * access to this structure takes a TLB miss it could cause
- * the 5-level sparc v9 trap stack to overflow.
+struct ino_bucket *ivector_table;
+unsigned long ivector_table_pa;
+
+/* On several sun4u processors, it is illegal to mix bypass and
+ * non-bypass accesses.  Therefore we access all INO buckets
+ * using bypass accesses only.
  */
-#define irq_work(__cpu)	&(trap_block[(__cpu)].irq_worklist)
+static unsigned long bucket_get_chain_pa(unsigned long bucket_pa)
+{
+	unsigned long ret;
+
+	__asm__ __volatile__("ldxa	[%1] %2, %0"
+			     : "=&r" (ret)
+			     : "r" (bucket_pa +
+				    offsetof(struct ino_bucket,
+					     __irq_chain_pa)),
+			       "i" (ASI_PHYS_USE_EC));
+
+	return ret;
+}
+
+static void bucket_clear_chain_pa(unsigned long bucket_pa)
+{
+	__asm__ __volatile__("stxa	%%g0, [%0] %1"
+			     : /* no outputs */
+			     : "r" (bucket_pa +
+				    offsetof(struct ino_bucket,
+					     __irq_chain_pa)),
+			       "i" (ASI_PHYS_USE_EC));
+}
+
+static unsigned int bucket_get_virt_irq(unsigned long bucket_pa)
+{
+	unsigned int ret;
+
+	__asm__ __volatile__("lduwa	[%1] %2, %0"
+			     : "=&r" (ret)
+			     : "r" (bucket_pa +
+				    offsetof(struct ino_bucket,
+					     __virt_irq)),
+			       "i" (ASI_PHYS_USE_EC));
+
+	return ret;
+}
+
+static void bucket_set_virt_irq(unsigned long bucket_pa,
+				unsigned int virt_irq)
+{
+	__asm__ __volatile__("stwa	%0, [%1] %2"
+			     : /* no outputs */
+			     : "r" (virt_irq),
+			       "r" (bucket_pa +
+				    offsetof(struct ino_bucket,
+					     __virt_irq)),
+			       "i" (ASI_PHYS_USE_EC));
+}
+
+#define irq_work_pa(__cpu)	&(trap_block[(__cpu)].irq_worklist_pa)
 
 static struct {
-	unsigned int irq;
 	unsigned int dev_handle;
 	unsigned int dev_ino;
-} virt_to_real_irq_table[NR_IRQS];
+	unsigned int in_use;
+} virt_irq_table[NR_IRQS];
+static DEFINE_SPINLOCK(virt_irq_alloc_lock);
 
-static unsigned char virt_irq_alloc(unsigned int real_irq)
+unsigned char virt_irq_alloc(unsigned int dev_handle,
+			     unsigned int dev_ino)
 {
+	unsigned long flags;
 	unsigned char ent;
 
 	BUILD_BUG_ON(NR_IRQS >= 256);
 
+	spin_lock_irqsave(&virt_irq_alloc_lock, flags);
+
 	for (ent = 1; ent < NR_IRQS; ent++) {
-		if (!virt_to_real_irq_table[ent].irq)
+		if (!virt_irq_table[ent].in_use)
 			break;
 	}
 	if (ent >= NR_IRQS) {
 		printk(KERN_ERR "IRQ: Out of virtual IRQs.\n");
-		return 0;
+		ent = 0;
+	} else {
+		virt_irq_table[ent].dev_handle = dev_handle;
+		virt_irq_table[ent].dev_ino = dev_ino;
+		virt_irq_table[ent].in_use = 1;
 	}
 
-	virt_to_real_irq_table[ent].irq = real_irq;
+	spin_unlock_irqrestore(&virt_irq_alloc_lock, flags);
 
 	return ent;
 }
 
 #ifdef CONFIG_PCI_MSI
-static void virt_irq_free(unsigned int virt_irq)
+void virt_irq_free(unsigned int virt_irq)
 {
-	unsigned int real_irq;
+	unsigned long flags;
 
 	if (virt_irq >= NR_IRQS)
 		return;
 
-	real_irq = virt_to_real_irq_table[virt_irq].irq;
-	virt_to_real_irq_table[virt_irq].irq = 0;
+	spin_lock_irqsave(&virt_irq_alloc_lock, flags);
 
-	__bucket(real_irq)->virt_irq = 0;
-}
-#endif
+	virt_irq_table[virt_irq].in_use = 0;
 
-static unsigned int virt_to_real_irq(unsigned char virt_irq)
-{
-	return virt_to_real_irq_table[virt_irq].irq;
+	spin_unlock_irqrestore(&virt_irq_alloc_lock, flags);
 }
+#endif
 
 /*
  * /proc/interrupts printing:
@@ -217,38 +259,8 @@ struct irq_handler_data {
 	void		(*pre_handler)(unsigned int, void *, void *);
 	void		*pre_handler_arg1;
 	void		*pre_handler_arg2;
-
-	u32		msi;
 };
 
-void sparc64_set_msi(unsigned int virt_irq, u32 msi)
-{
-	struct irq_handler_data *data = get_irq_chip_data(virt_irq);
-
-	if (data)
-		data->msi = msi;
-}
-
-u32 sparc64_get_msi(unsigned int virt_irq)
-{
-	struct irq_handler_data *data = get_irq_chip_data(virt_irq);
-
-	if (data)
-		return data->msi;
-	return 0xffffffff;
-}
-
-static inline struct ino_bucket *virt_irq_to_bucket(unsigned int virt_irq)
-{
-	unsigned int real_irq = virt_to_real_irq(virt_irq);
-	struct ino_bucket *bucket = NULL;
-
-	if (likely(real_irq))
-		bucket = __bucket(real_irq);
-
-	return bucket;
-}
-
 #ifdef CONFIG_SMP
 static int irq_choose_cpu(unsigned int virt_irq)
 {
@@ -348,201 +360,152 @@ static void sun4u_irq_end(unsigned int virt_irq)
 
 static void sun4v_irq_enable(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned int ino = bucket - &ivector_table[0];
-
-	if (likely(bucket)) {
-		unsigned long cpuid;
-		int err;
+	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
+	unsigned long cpuid = irq_choose_cpu(virt_irq);
+	int err;
 
-		cpuid = irq_choose_cpu(virt_irq);
-
-		err = sun4v_intr_settarget(ino, cpuid);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): "
-			       "err(%d)\n", ino, cpuid, err);
-		err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_setstate(%x): "
-			       "err(%d)\n", ino, err);
-		err = sun4v_intr_setenabled(ino, HV_INTR_ENABLED);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_setenabled(%x): err(%d)\n",
-			       ino, err);
-	}
+	err = sun4v_intr_settarget(ino, cpuid);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): "
+		       "err(%d)\n", ino, cpuid, err);
+	err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_setstate(%x): "
+		       "err(%d)\n", ino, err);
+	err = sun4v_intr_setenabled(ino, HV_INTR_ENABLED);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_setenabled(%x): err(%d)\n",
+		       ino, err);
 }
 
 static void sun4v_set_affinity(unsigned int virt_irq, cpumask_t mask)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned int ino = bucket - &ivector_table[0];
+	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
+	unsigned long cpuid = irq_choose_cpu(virt_irq);
+	int err;
 
-	if (likely(bucket)) {
-		unsigned long cpuid;
-		int err;
-
-		cpuid = irq_choose_cpu(virt_irq);
-
-		err = sun4v_intr_settarget(ino, cpuid);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): "
-			       "err(%d)\n", ino, cpuid, err);
-	}
+	err = sun4v_intr_settarget(ino, cpuid);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): "
+		       "err(%d)\n", ino, cpuid, err);
 }
 
 static void sun4v_irq_disable(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned int ino = bucket - &ivector_table[0];
-
-	if (likely(bucket)) {
-		int err;
-
-		err = sun4v_intr_setenabled(ino, HV_INTR_DISABLED);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_setenabled(%x): "
-			       "err(%d)\n", ino, err);
-	}
-}
-
-#ifdef CONFIG_PCI_MSI
-static void sun4v_msi_enable(unsigned int virt_irq)
-{
-	sun4v_irq_enable(virt_irq);
-	unmask_msi_irq(virt_irq);
-}
+	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
+	int err;
 
-static void sun4v_msi_disable(unsigned int virt_irq)
-{
-	mask_msi_irq(virt_irq);
-	sun4v_irq_disable(virt_irq);
+	err = sun4v_intr_setenabled(ino, HV_INTR_DISABLED);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_setenabled(%x): "
+		       "err(%d)\n", ino, err);
 }
-#endif
 
 static void sun4v_irq_end(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned int ino = bucket - &ivector_table[0];
+	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
 	struct irq_desc *desc = irq_desc + virt_irq;
+	int err;
 
 	if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
 		return;
 
-	if (likely(bucket)) {
-		int err;
-
-		err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_intr_setstate(%x): "
-			       "err(%d)\n", ino, err);
-	}
+	err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_intr_setstate(%x): "
+		       "err(%d)\n", ino, err);
 }
 
 static void sun4v_virq_enable(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-
-	if (likely(bucket)) {
-		unsigned long cpuid, dev_handle, dev_ino;
-		int err;
-
-		cpuid = irq_choose_cpu(virt_irq);
-
-		dev_handle = virt_to_real_irq_table[virt_irq].dev_handle;
-		dev_ino = virt_to_real_irq_table[virt_irq].dev_ino;
-
-		err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): "
-			       "err(%d)\n",
-			       dev_handle, dev_ino, cpuid, err);
-		err = sun4v_vintr_set_state(dev_handle, dev_ino,
-					    HV_INTR_STATE_IDLE);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
-				"HV_INTR_STATE_IDLE): err(%d)\n",
-			       dev_handle, dev_ino, err);
-		err = sun4v_vintr_set_valid(dev_handle, dev_ino,
-					    HV_INTR_ENABLED);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
-			       "HV_INTR_ENABLED): err(%d)\n",
-			       dev_handle, dev_ino, err);
-	}
+	unsigned long cpuid, dev_handle, dev_ino;
+	int err;
+
+	cpuid = irq_choose_cpu(virt_irq);
+
+	dev_handle = virt_irq_table[virt_irq].dev_handle;
+	dev_ino = virt_irq_table[virt_irq].dev_ino;
+
+	err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): "
+		       "err(%d)\n",
+		       dev_handle, dev_ino, cpuid, err);
+	err = sun4v_vintr_set_state(dev_handle, dev_ino,
+				    HV_INTR_STATE_IDLE);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
+		       "HV_INTR_STATE_IDLE): err(%d)\n",
+		       dev_handle, dev_ino, err);
+	err = sun4v_vintr_set_valid(dev_handle, dev_ino,
+				    HV_INTR_ENABLED);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
+		       "HV_INTR_ENABLED): err(%d)\n",
+		       dev_handle, dev_ino, err);
 }
 
 static void sun4v_virt_set_affinity(unsigned int virt_irq, cpumask_t mask)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
+	unsigned long cpuid, dev_handle, dev_ino;
+	int err;
 
-	if (likely(bucket)) {
-		unsigned long cpuid, dev_handle, dev_ino;
-		int err;
+	cpuid = irq_choose_cpu(virt_irq);
 
-		cpuid = irq_choose_cpu(virt_irq);
+	dev_handle = virt_irq_table[virt_irq].dev_handle;
+	dev_ino = virt_irq_table[virt_irq].dev_ino;
 
-		dev_handle = virt_to_real_irq_table[virt_irq].dev_handle;
-		dev_ino = virt_to_real_irq_table[virt_irq].dev_ino;
-
-		err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): "
-			       "err(%d)\n",
-			       dev_handle, dev_ino, cpuid, err);
-	}
+	err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): "
+		       "err(%d)\n",
+		       dev_handle, dev_ino, cpuid, err);
 }
 
 static void sun4v_virq_disable(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
+	unsigned long dev_handle, dev_ino;
+	int err;
 
-	if (likely(bucket)) {
-		unsigned long dev_handle, dev_ino;
-		int err;
+	dev_handle = virt_irq_table[virt_irq].dev_handle;
+	dev_ino = virt_irq_table[virt_irq].dev_ino;
 
-		dev_handle = virt_to_real_irq_table[virt_irq].dev_handle;
-		dev_ino = virt_to_real_irq_table[virt_irq].dev_ino;
-
-		err = sun4v_vintr_set_valid(dev_handle, dev_ino,
-					    HV_INTR_DISABLED);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
-			       "HV_INTR_DISABLED): err(%d)\n",
-			       dev_handle, dev_ino, err);
-	}
+	err = sun4v_vintr_set_valid(dev_handle, dev_ino,
+				    HV_INTR_DISABLED);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
+		       "HV_INTR_DISABLED): err(%d)\n",
+		       dev_handle, dev_ino, err);
 }
 
 static void sun4v_virq_end(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
 	struct irq_desc *desc = irq_desc + virt_irq;
+	unsigned long dev_handle, dev_ino;
+	int err;
 
 	if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS)))
 		return;
 
-	if (likely(bucket)) {
-		unsigned long dev_handle, dev_ino;
-		int err;
+	dev_handle = virt_irq_table[virt_irq].dev_handle;
+	dev_ino = virt_irq_table[virt_irq].dev_ino;
 
-		dev_handle = virt_to_real_irq_table[virt_irq].dev_handle;
-		dev_ino = virt_to_real_irq_table[virt_irq].dev_ino;
-
-		err = sun4v_vintr_set_state(dev_handle, dev_ino,
-					    HV_INTR_STATE_IDLE);
-		if (err != HV_EOK)
-			printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
-				"HV_INTR_STATE_IDLE): err(%d)\n",
-			       dev_handle, dev_ino, err);
-	}
+	err = sun4v_vintr_set_state(dev_handle, dev_ino,
+				    HV_INTR_STATE_IDLE);
+	if (err != HV_EOK)
+		printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx,"
+		       "HV_INTR_STATE_IDLE): err(%d)\n",
+		       dev_handle, dev_ino, err);
 }
 
 static void run_pre_handler(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
 	struct irq_handler_data *data = get_irq_chip_data(virt_irq);
+	unsigned int ino;
 
+	ino = virt_irq_table[virt_irq].dev_ino;
 	if (likely(data->pre_handler)) {
-		data->pre_handler(__irq_ino(__irq(bucket)),
+		data->pre_handler(ino,
 				  data->pre_handler_arg1,
 				  data->pre_handler_arg2);
 	}
@@ -573,28 +536,6 @@ static struct irq_chip sun4v_irq = {
 	.set_affinity	= sun4v_set_affinity,
 };
 
-static struct irq_chip sun4v_irq_ack = {
-	.typename	= "sun4v+ack",
-	.enable		= sun4v_irq_enable,
-	.disable	= sun4v_irq_disable,
-	.ack		= run_pre_handler,
-	.end		= sun4v_irq_end,
-	.set_affinity	= sun4v_set_affinity,
-};
-
-#ifdef CONFIG_PCI_MSI
-static struct irq_chip sun4v_msi = {
-	.typename	= "sun4v+msi",
-	.mask		= mask_msi_irq,
-	.unmask		= unmask_msi_irq,
-	.enable		= sun4v_msi_enable,
-	.disable	= sun4v_msi_disable,
-	.ack		= run_pre_handler,
-	.end		= sun4v_irq_end,
-	.set_affinity	= sun4v_set_affinity,
-};
-#endif
-
 static struct irq_chip sun4v_virq = {
 	.typename	= "vsun4v",
 	.enable		= sun4v_virq_enable,
@@ -603,59 +544,48 @@ static struct irq_chip sun4v_virq = {
 	.set_affinity	= sun4v_virt_set_affinity,
 };
 
-static struct irq_chip sun4v_virq_ack = {
-	.typename	= "vsun4v+ack",
-	.enable		= sun4v_virq_enable,
-	.disable	= sun4v_virq_disable,
-	.ack		= run_pre_handler,
-	.end		= sun4v_virq_end,
-	.set_affinity	= sun4v_virt_set_affinity,
-};
-
 void irq_install_pre_handler(int virt_irq,
 			     void (*func)(unsigned int, void *, void *),
 			     void *arg1, void *arg2)
 {
 	struct irq_handler_data *data = get_irq_chip_data(virt_irq);
-	struct irq_chip *chip;
+	struct irq_chip *chip = get_irq_chip(virt_irq);
+
+	if (WARN_ON(chip == &sun4v_irq || chip == &sun4v_virq)) {
+		printk(KERN_ERR "IRQ: Trying to install pre-handler on "
+		       "sun4v irq %u\n", virt_irq);
+		return;
+	}
 
 	data->pre_handler = func;
 	data->pre_handler_arg1 = arg1;
 	data->pre_handler_arg2 = arg2;
 
-	chip = get_irq_chip(virt_irq);
-	if (chip == &sun4u_irq_ack ||
-	    chip == &sun4v_irq_ack ||
-	    chip == &sun4v_virq_ack
-#ifdef CONFIG_PCI_MSI
-	    || chip == &sun4v_msi
-#endif
-	    )
+	if (chip == &sun4u_irq_ack)
 		return;
 
-	chip = (chip == &sun4u_irq ?
-		&sun4u_irq_ack :
-		(chip == &sun4v_irq ?
-		 &sun4v_irq_ack : &sun4v_virq_ack));
-	set_irq_chip(virt_irq, chip);
+	set_irq_chip(virt_irq, &sun4u_irq_ack);
 }
 
 unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 {
 	struct ino_bucket *bucket;
 	struct irq_handler_data *data;
+	unsigned int virt_irq;
 	int ino;
 
 	BUG_ON(tlb_type == hypervisor);
 
 	ino = (upa_readq(imap) & (IMAP_IGN | IMAP_INO)) + inofixup;
 	bucket = &ivector_table[ino];
-	if (!bucket->virt_irq) {
-		bucket->virt_irq = virt_irq_alloc(__irq(bucket));
-		set_irq_chip(bucket->virt_irq, &sun4u_irq);
+	virt_irq = bucket_get_virt_irq(__pa(bucket));
+	if (!virt_irq) {
+		virt_irq = virt_irq_alloc(0, ino);
+		bucket_set_virt_irq(__pa(bucket), virt_irq);
+		set_irq_chip(virt_irq, &sun4u_irq);
 	}
 
-	data = get_irq_chip_data(bucket->virt_irq);
+	data = get_irq_chip_data(virt_irq);
 	if (unlikely(data))
 		goto out;
 
@@ -664,13 +594,13 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 		prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n");
 		prom_halt();
 	}
-	set_irq_chip_data(bucket->virt_irq, data);
+	set_irq_chip_data(virt_irq, data);
 
 	data->imap  = imap;
 	data->iclr  = iclr;
 
 out:
-	return bucket->virt_irq;
+	return virt_irq;
 }
 
 static unsigned int sun4v_build_common(unsigned long sysino,
@@ -678,16 +608,19 @@ static unsigned int sun4v_build_common(unsigned long sysino,
 {
 	struct ino_bucket *bucket;
 	struct irq_handler_data *data;
+	unsigned int virt_irq;
 
 	BUG_ON(tlb_type != hypervisor);
 
 	bucket = &ivector_table[sysino];
-	if (!bucket->virt_irq) {
-		bucket->virt_irq = virt_irq_alloc(__irq(bucket));
-		set_irq_chip(bucket->virt_irq, chip);
+	virt_irq = bucket_get_virt_irq(__pa(bucket));
+	if (!virt_irq) {
+		virt_irq = virt_irq_alloc(0, sysino);
+		bucket_set_virt_irq(__pa(bucket), virt_irq);
+		set_irq_chip(virt_irq, chip);
 	}
 
-	data = get_irq_chip_data(bucket->virt_irq);
+	data = get_irq_chip_data(virt_irq);
 	if (unlikely(data))
 		goto out;
 
@@ -696,7 +629,7 @@ static unsigned int sun4v_build_common(unsigned long sysino,
 		prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n");
 		prom_halt();
 	}
-	set_irq_chip_data(bucket->virt_irq, data);
+	set_irq_chip_data(virt_irq, data);
 
 	/* Catch accidental accesses to these things.  IMAP/ICLR handling
 	 * is done by hypervisor calls on sun4v platforms, not by direct
@@ -706,7 +639,7 @@ static unsigned int sun4v_build_common(unsigned long sysino,
 	data->iclr = ~0UL;
 
 out:
-	return bucket->virt_irq;
+	return virt_irq;
 }
 
 unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
@@ -718,86 +651,52 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
 
 unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
 {
-	unsigned long sysino, hv_err;
-	unsigned int virq;
-
-	BUG_ON(devhandle & devino);
-
-	sysino = devhandle | devino;
-	BUG_ON(sysino & ~(IMAP_IGN | IMAP_INO));
-
-	hv_err = sun4v_vintr_set_cookie(devhandle, devino, sysino);
-	if (hv_err) {
-		prom_printf("IRQ: Fatal, cannot set cookie for [%x:%x] "
-			    "err=%lu\n", devhandle, devino, hv_err);
-		prom_halt();
-	}
-
-	virq = sun4v_build_common(sysino, &sun4v_virq);
-
-	virt_to_real_irq_table[virq].dev_handle = devhandle;
-	virt_to_real_irq_table[virq].dev_ino = devino;
-
-	return virq;
-}
-
-#ifdef CONFIG_PCI_MSI
-unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p,
-			     unsigned int msi_start, unsigned int msi_end)
-{
-	struct ino_bucket *bucket;
 	struct irq_handler_data *data;
-	unsigned long sysino;
-	unsigned int devino;
-
-	BUG_ON(tlb_type != hypervisor);
-
-	/* Find a free devino in the given range.  */
-	for (devino = msi_start; devino < msi_end; devino++) {
-		sysino = sun4v_devino_to_sysino(devhandle, devino);
-		bucket = &ivector_table[sysino];
-		if (!bucket->virt_irq)
-			break;
-	}
-	if (devino >= msi_end)
-		return -ENOSPC;
+	struct ino_bucket *bucket;
+	unsigned long hv_err, cookie;
+	unsigned int virt_irq;
 
-	sysino = sun4v_devino_to_sysino(devhandle, devino);
-	bucket = &ivector_table[sysino];
-	bucket->virt_irq = virt_irq_alloc(__irq(bucket));
-	*virt_irq_p = bucket->virt_irq;
-	set_irq_chip(bucket->virt_irq, &sun4v_msi);
+	bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
+	if (unlikely(!bucket))
+		return 0;
+	__flush_dcache_range((unsigned long) bucket,
+			     ((unsigned long) bucket +
+			      sizeof(struct ino_bucket)));
 
-	data = get_irq_chip_data(bucket->virt_irq);
-	if (unlikely(data))
-		return devino;
+	virt_irq = virt_irq_alloc(devhandle, devino);
+	bucket_set_virt_irq(__pa(bucket), virt_irq);
+	set_irq_chip(virt_irq, &sun4v_virq);
 
 	data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC);
-	if (unlikely(!data)) {
-		virt_irq_free(*virt_irq_p);
-		return -ENOMEM;
-	}
-	set_irq_chip_data(bucket->virt_irq, data);
+	if (unlikely(!data))
+		return 0;
+
+	set_irq_chip_data(virt_irq, data);
 
+	/* Catch accidental accesses to these things.  IMAP/ICLR handling
+	 * is done by hypervisor calls on sun4v platforms, not by direct
+	 * register accesses.
+	 */
 	data->imap = ~0UL;
 	data->iclr = ~0UL;
 
-	return devino;
-}
+	cookie = ~__pa(bucket);
+	hv_err = sun4v_vintr_set_cookie(devhandle, devino, cookie);
+	if (hv_err) {
+		prom_printf("IRQ: Fatal, cannot set cookie for [%x:%x] "
+			    "err=%lu\n", devhandle, devino, hv_err);
+		prom_halt();
+	}
 
-void sun4v_destroy_msi(unsigned int virt_irq)
-{
-	virt_irq_free(virt_irq);
+	return virt_irq;
 }
-#endif
 
 void ack_bad_irq(unsigned int virt_irq)
 {
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned int ino = 0xdeadbeef;
+	unsigned int ino = virt_irq_table[virt_irq].dev_ino;
 
-	if (bucket)
-		ino = bucket - &ivector_table[0];
+	if (!ino)
+		ino = 0xdeadbeef;
 
 	printk(KERN_CRIT "Unexpected IRQ from ino[%x] virt_irq[%u]\n",
 	       ino, virt_irq);
@@ -805,7 +704,7 @@ void ack_bad_irq(unsigned int virt_irq)
 
 void handler_irq(int irq, struct pt_regs *regs)
 {
-	struct ino_bucket *bucket;
+	unsigned long pstate, bucket_pa;
 	struct pt_regs *old_regs;
 
 	clear_softint(1 << irq);
@@ -813,15 +712,28 @@ void handler_irq(int irq, struct pt_regs *regs)
 	old_regs = set_irq_regs(regs);
 	irq_enter();
 
-	/* Sliiiick... */
-	bucket = __bucket(xchg32(irq_work(smp_processor_id()), 0));
-	while (bucket) {
-		struct ino_bucket *next = __bucket(bucket->irq_chain);
+	/* Grab an atomic snapshot of the pending IVECs.  */
+	__asm__ __volatile__("rdpr	%%pstate, %0\n\t"
+			     "wrpr	%0, %3, %%pstate\n\t"
+			     "ldx	[%2], %1\n\t"
+			     "stx	%%g0, [%2]\n\t"
+			     "wrpr	%0, 0x0, %%pstate\n\t"
+			     : "=&r" (pstate), "=&r" (bucket_pa)
+			     : "r" (irq_work_pa(smp_processor_id())),
+			       "i" (PSTATE_IE)
+			     : "memory");
+
+	while (bucket_pa) {
+		unsigned long next_pa;
+		unsigned int virt_irq;
 
-		bucket->irq_chain = 0;
-		__do_IRQ(bucket->virt_irq);
+		next_pa = bucket_get_chain_pa(bucket_pa);
+		virt_irq = bucket_get_virt_irq(bucket_pa);
+		bucket_clear_chain_pa(bucket_pa);
 
-		bucket = next;
+		__do_IRQ(virt_irq);
+
+		bucket_pa = next_pa;
 	}
 
 	irq_exit();
@@ -921,7 +833,7 @@ void init_irqwork_curcpu(void)
 {
 	int cpu = hard_smp_processor_id();
 
-	trap_block[cpu].irq_worklist = 0;
+	trap_block[cpu].irq_worklist_pa = 0UL;
 }
 
 /* Please be very careful with register_one_mondo() and
@@ -1035,9 +947,21 @@ static struct irqaction timer_irq_action = {
 /* Only invoked on boot processor. */
 void __init init_IRQ(void)
 {
+	unsigned long size;
+
 	map_prom_timers();
 	kill_prom_timer();
-	memset(&ivector_table[0], 0, sizeof(ivector_table));
+
+	size = sizeof(struct ino_bucket) * NUM_IVECS;
+	ivector_table = alloc_bootmem_low(size);
+	if (!ivector_table) {
+		prom_printf("Fatal error, cannot allocate ivector_table\n");
+		prom_halt();
+	}
+	__flush_dcache_range((unsigned long) ivector_table,
+			     ((unsigned long) ivector_table) + size);
+
+	ivector_table_pa = __pa(ivector_table);
 
 	if (tlb_type == hypervisor)
 		sun4v_init_mondo_queues();
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 4cc77485f53..42d779866fb 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -872,7 +872,10 @@ __setup("of_debug=", of_debug);
 int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
 {
 	/* initialize common driver fields */
-	drv->driver.name = drv->name;
+	if (!drv->driver.name)
+		drv->driver.name = drv->name;
+	if (!drv->driver.owner)
+		drv->driver.owner = drv->owner;
 	drv->driver.bus = bus;
 
 	/* register with core */
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index e8dac81d8a0..9b808640a19 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -29,8 +29,6 @@
 
 #include "pci_impl.h"
 
-unsigned long pci_memspace_mask = 0xffffffffUL;
-
 #ifndef CONFIG_PCI
 /* A "nop" PCI implementation. */
 asmlinkage int sys_pciconfig_read(unsigned long bus, unsigned long dfn,
@@ -1066,8 +1064,8 @@ static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struc
 	return 0;
 }
 
-/* Adjust vm_pgoff of VMA such that it is the physical page offset corresponding
- * to the 32-bit pci bus offset for DEV requested by the user.
+/* Adjust vm_pgoff of VMA such that it is the physical page offset
+ * corresponding to the 32-bit pci bus offset for DEV requested by the user.
  *
  * Basically, the user finds the base address for his device which he wishes
  * to mmap.  They read the 32-bit value from the config space base register,
@@ -1076,21 +1074,35 @@ static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struc
  *
  * Returns negative error code on failure, zero on success.
  */
-static int __pci_mmap_make_offset(struct pci_dev *dev, struct vm_area_struct *vma,
+static int __pci_mmap_make_offset(struct pci_dev *pdev,
+				  struct vm_area_struct *vma,
 				  enum pci_mmap_state mmap_state)
 {
-	unsigned long user_offset = vma->vm_pgoff << PAGE_SHIFT;
-	unsigned long user32 = user_offset & pci_memspace_mask;
-	unsigned long largest_base, this_base, addr32;
-	int i;
+	unsigned long user_paddr, user_size;
+	int i, err;
 
-	if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
-		return __pci_mmap_make_offset_bus(dev, vma, mmap_state);
+	/* First compute the physical address in vma->vm_pgoff,
+	 * making sure the user offset is within range in the
+	 * appropriate PCI space.
+	 */
+	err = __pci_mmap_make_offset_bus(pdev, vma, mmap_state);
+	if (err)
+		return err;
+
+	/* If this is a mapping on a host bridge, any address
+	 * is OK.
+	 */
+	if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
+		return err;
+
+	/* Otherwise make sure it's in the range for one of the
+	 * device's resources.
+	 */
+	user_paddr = vma->vm_pgoff << PAGE_SHIFT;
+	user_size = vma->vm_end - vma->vm_start;
 
-	/* Figure out which base address this is for. */
-	largest_base = 0UL;
 	for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
-		struct resource *rp = &dev->resource[i];
+		struct resource *rp = &pdev->resource[i];
 
 		/* Active? */
 		if (!rp->flags)
@@ -1108,26 +1120,14 @@ static int __pci_mmap_make_offset(struct pci_dev *dev, struct vm_area_struct *vm
 				continue;
 		}
 
-		this_base = rp->start;
-
-		addr32 = (this_base & PAGE_MASK) & pci_memspace_mask;
-
-		if (mmap_state == pci_mmap_io)
-			addr32 &= 0xffffff;
-
-		if (addr32 <= user32 && this_base > largest_base)
-			largest_base = this_base;
+		if ((rp->start <= user_paddr) &&
+		    (user_paddr + user_size) <= (rp->end + 1UL))
+			break;
 	}
 
-	if (largest_base == 0UL)
+	if (i > PCI_ROM_RESOURCE)
 		return -EINVAL;
 
-	/* Now construct the final physical address. */
-	if (mmap_state == pci_mmap_io)
-		vma->vm_pgoff = (((largest_base & ~0xffffffUL) | user32) >> PAGE_SHIFT);
-	else
-		vma->vm_pgoff = (((largest_base & ~(pci_memspace_mask)) | user32) >> PAGE_SHIFT);
-
 	return 0;
 }
 
diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c
index 14d67fe21ab..fef3b37487b 100644
--- a/arch/sparc64/kernel/pci_fire.c
+++ b/arch/sparc64/kernel/pci_fire.c
@@ -6,9 +6,12 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/msi.h>
+#include <linux/irq.h>
 
 #include <asm/oplib.h>
 #include <asm/prom.h>
+#include <asm/irq.h>
 
 #include "pci_impl.h"
 
@@ -84,6 +87,266 @@ static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm)
 	return 0;
 }
 
+#ifdef CONFIG_PCI_MSI
+struct pci_msiq_entry {
+	u64		word0;
+#define MSIQ_WORD0_RESV			0x8000000000000000UL
+#define MSIQ_WORD0_FMT_TYPE		0x7f00000000000000UL
+#define MSIQ_WORD0_FMT_TYPE_SHIFT	56
+#define MSIQ_WORD0_LEN			0x00ffc00000000000UL
+#define MSIQ_WORD0_LEN_SHIFT		46
+#define MSIQ_WORD0_ADDR0		0x00003fff00000000UL
+#define MSIQ_WORD0_ADDR0_SHIFT		32
+#define MSIQ_WORD0_RID			0x00000000ffff0000UL
+#define MSIQ_WORD0_RID_SHIFT		16
+#define MSIQ_WORD0_DATA0		0x000000000000ffffUL
+#define MSIQ_WORD0_DATA0_SHIFT		0
+
+#define MSIQ_TYPE_MSG			0x6
+#define MSIQ_TYPE_MSI32			0xb
+#define MSIQ_TYPE_MSI64			0xf
+
+	u64		word1;
+#define MSIQ_WORD1_ADDR1		0xffffffffffff0000UL
+#define MSIQ_WORD1_ADDR1_SHIFT		16
+#define MSIQ_WORD1_DATA1		0x000000000000ffffUL
+#define MSIQ_WORD1_DATA1_SHIFT		0
+
+	u64		resv[6];
+};
+
+/* All MSI registers are offset from pbm->pbm_regs */
+#define EVENT_QUEUE_BASE_ADDR_REG	0x010000UL
+#define  EVENT_QUEUE_BASE_ADDR_ALL_ONES	0xfffc000000000000UL
+
+#define EVENT_QUEUE_CONTROL_SET(EQ)	(0x011000UL + (EQ) * 0x8UL)
+#define  EVENT_QUEUE_CONTROL_SET_OFLOW	0x0200000000000000UL
+#define  EVENT_QUEUE_CONTROL_SET_EN	0x0000100000000000UL
+
+#define EVENT_QUEUE_CONTROL_CLEAR(EQ)	(0x011200UL + (EQ) * 0x8UL)
+#define  EVENT_QUEUE_CONTROL_CLEAR_OF	0x0200000000000000UL
+#define  EVENT_QUEUE_CONTROL_CLEAR_E2I	0x0000800000000000UL
+#define  EVENT_QUEUE_CONTROL_CLEAR_DIS	0x0000100000000000UL
+
+#define EVENT_QUEUE_STATE(EQ)		(0x011400UL + (EQ) * 0x8UL)
+#define  EVENT_QUEUE_STATE_MASK		0x0000000000000007UL
+#define  EVENT_QUEUE_STATE_IDLE		0x0000000000000001UL
+#define  EVENT_QUEUE_STATE_ACTIVE	0x0000000000000002UL
+#define  EVENT_QUEUE_STATE_ERROR	0x0000000000000004UL
+
+#define EVENT_QUEUE_TAIL(EQ)		(0x011600UL + (EQ) * 0x8UL)
+#define  EVENT_QUEUE_TAIL_OFLOW		0x0200000000000000UL
+#define  EVENT_QUEUE_TAIL_VAL		0x000000000000007fUL
+
+#define EVENT_QUEUE_HEAD(EQ)		(0x011800UL + (EQ) * 0x8UL)
+#define  EVENT_QUEUE_HEAD_VAL		0x000000000000007fUL
+
+#define MSI_MAP(MSI)			(0x020000UL + (MSI) * 0x8UL)
+#define  MSI_MAP_VALID			0x8000000000000000UL
+#define  MSI_MAP_EQWR_N			0x4000000000000000UL
+#define  MSI_MAP_EQNUM			0x000000000000003fUL
+
+#define MSI_CLEAR(MSI)			(0x028000UL + (MSI) * 0x8UL)
+#define  MSI_CLEAR_EQWR_N		0x4000000000000000UL
+
+#define IMONDO_DATA0			0x02C000UL
+#define  IMONDO_DATA0_DATA		0xffffffffffffffc0UL
+
+#define IMONDO_DATA1			0x02C008UL
+#define  IMONDO_DATA1_DATA		0xffffffffffffffffUL
+
+#define MSI_32BIT_ADDR			0x034000UL
+#define  MSI_32BIT_ADDR_VAL		0x00000000ffff0000UL
+
+#define MSI_64BIT_ADDR			0x034008UL
+#define  MSI_64BIT_ADDR_VAL		0xffffffffffff0000UL
+
+static int pci_fire_get_head(struct pci_pbm_info *pbm, unsigned long msiqid,
+			     unsigned long *head)
+{
+	*head = fire_read(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
+	return 0;
+}
+
+static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid,
+				unsigned long *head, unsigned long *msi)
+{
+	unsigned long type_fmt, type, msi_num;
+	struct pci_msiq_entry *base, *ep;
+
+	base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * 8192));
+	ep = &base[*head];
+
+	if ((ep->word0 & MSIQ_WORD0_FMT_TYPE) == 0)
+		return 0;
+
+	type_fmt = ((ep->word0 & MSIQ_WORD0_FMT_TYPE) >>
+		    MSIQ_WORD0_FMT_TYPE_SHIFT);
+	type = (type_fmt >> 3);
+	if (unlikely(type != MSIQ_TYPE_MSI32 &&
+		     type != MSIQ_TYPE_MSI64))
+		return -EINVAL;
+
+	*msi = msi_num = ((ep->word0 & MSIQ_WORD0_DATA0) >>
+			  MSIQ_WORD0_DATA0_SHIFT);
+
+	fire_write(pbm->pbm_regs + MSI_CLEAR(msi_num),
+		   MSI_CLEAR_EQWR_N);
+
+	/* Clear the entry.  */
+	ep->word0 &= ~MSIQ_WORD0_FMT_TYPE;
+
+	/* Go to next entry in ring.  */
+	(*head)++;
+	if (*head >= pbm->msiq_ent_count)
+		*head = 0;
+
+	return 1;
+}
+
+static int pci_fire_set_head(struct pci_pbm_info *pbm, unsigned long msiqid,
+			     unsigned long head)
+{
+	fire_write(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid), head);
+	return 0;
+}
+
+static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid,
+			      unsigned long msi, int is_msi64)
+{
+	u64 val;
+
+	val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+	val &= ~(MSI_MAP_EQNUM);
+	val |= msiqid;
+	fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+
+	fire_write(pbm->pbm_regs + MSI_CLEAR(msi),
+		   MSI_CLEAR_EQWR_N);
+
+	val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+	val |= MSI_MAP_VALID;
+	fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+
+	return 0;
+}
+
+static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi)
+{
+	unsigned long msiqid;
+	u64 val;
+
+	val = fire_read(pbm->pbm_regs + MSI_MAP(msi));
+	msiqid = (val & MSI_MAP_EQNUM);
+
+	val &= ~MSI_MAP_VALID;
+
+	fire_write(pbm->pbm_regs + MSI_MAP(msi), val);
+
+	return 0;
+}
+
+static int pci_fire_msiq_alloc(struct pci_pbm_info *pbm)
+{
+	unsigned long pages, order, i;
+
+	order = get_order(512 * 1024);
+	pages = __get_free_pages(GFP_KERNEL | __GFP_COMP, order);
+	if (pages == 0UL) {
+		printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n",
+		       order);
+		return -ENOMEM;
+	}
+	memset((char *)pages, 0, PAGE_SIZE << order);
+	pbm->msi_queues = (void *) pages;
+
+	fire_write(pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG,
+		   (EVENT_QUEUE_BASE_ADDR_ALL_ONES |
+		    __pa(pbm->msi_queues)));
+
+	fire_write(pbm->pbm_regs + IMONDO_DATA0,
+		   pbm->portid << 6);
+	fire_write(pbm->pbm_regs + IMONDO_DATA1, 0);
+
+	fire_write(pbm->pbm_regs + MSI_32BIT_ADDR,
+		   pbm->msi32_start);
+	fire_write(pbm->pbm_regs + MSI_64BIT_ADDR,
+		   pbm->msi64_start);
+
+	for (i = 0; i < pbm->msiq_num; i++) {
+		fire_write(pbm->pbm_regs + EVENT_QUEUE_HEAD(i), 0);
+		fire_write(pbm->pbm_regs + EVENT_QUEUE_TAIL(i), 0);
+	}
+
+	return 0;
+}
+
+static void pci_fire_msiq_free(struct pci_pbm_info *pbm)
+{
+	unsigned long pages, order;
+
+	order = get_order(512 * 1024);
+	pages = (unsigned long) pbm->msi_queues;
+
+	free_pages(pages, order);
+
+	pbm->msi_queues = NULL;
+}
+
+static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm,
+				   unsigned long msiqid,
+				   unsigned long devino)
+{
+	unsigned long cregs = (unsigned long) pbm->pbm_regs;
+	unsigned long imap_reg, iclr_reg, int_ctrlr;
+	unsigned int virt_irq;
+	int fixup;
+	u64 val;
+
+	imap_reg = cregs + (0x001000UL + (devino * 0x08UL));
+	iclr_reg = cregs + (0x001400UL + (devino * 0x08UL));
+
+	/* XXX iterate amongst the 4 IRQ controllers XXX */
+	int_ctrlr = (1UL << 6);
+
+	val = fire_read(imap_reg);
+	val |= (1UL << 63) | int_ctrlr;
+	fire_write(imap_reg, val);
+
+	fixup = ((pbm->portid << 6) | devino) - int_ctrlr;
+
+	virt_irq = build_irq(fixup, iclr_reg, imap_reg);
+	if (!virt_irq)
+		return -ENOMEM;
+
+	fire_write(pbm->pbm_regs +
+		   EVENT_QUEUE_CONTROL_SET(msiqid),
+		   EVENT_QUEUE_CONTROL_SET_EN);
+
+	return virt_irq;
+}
+
+static const struct sparc64_msiq_ops pci_fire_msiq_ops = {
+	.get_head	=	pci_fire_get_head,
+	.dequeue_msi	=	pci_fire_dequeue_msi,
+	.set_head	=	pci_fire_set_head,
+	.msi_setup	=	pci_fire_msi_setup,
+	.msi_teardown	=	pci_fire_msi_teardown,
+	.msiq_alloc	=	pci_fire_msiq_alloc,
+	.msiq_free	=	pci_fire_msiq_free,
+	.msiq_build_irq	=	pci_fire_msiq_build_irq,
+};
+
+static void pci_fire_msi_init(struct pci_pbm_info *pbm)
+{
+	sparc64_pbm_msi_init(pbm, &pci_fire_msiq_ops);
+}
+#else /* CONFIG_PCI_MSI */
+static void pci_fire_msi_init(struct pci_pbm_info *pbm)
+{
+}
+#endif /* !(CONFIG_PCI_MSI) */
+
 /* Based at pbm->controller_regs */
 #define FIRE_PARITY_CONTROL	0x470010UL
 #define  FIRE_PARITY_ENAB	0x8000000000000000UL
@@ -176,6 +439,7 @@ static int pci_fire_pbm_init(struct pci_controller_info *p,
 {
 	const struct linux_prom64_registers *regs;
 	struct pci_pbm_info *pbm;
+	int err;
 
 	if ((portid & 1) == 0)
 		pbm = &p->pbm_A;
@@ -208,7 +472,13 @@ static int pci_fire_pbm_init(struct pci_controller_info *p,
 
 	pci_fire_hw_init(pbm);
 
-	return pci_fire_pbm_iommu_init(pbm);
+	err = pci_fire_pbm_iommu_init(pbm);
+	if (err)
+		return err;
+
+	pci_fire_msi_init(pbm);
+
+	return 0;
 }
 
 static inline int portid_compare(u32 x, u32 y)
@@ -249,13 +519,6 @@ void fire_pci_init(struct device_node *dp, const char *model_name)
 
 	p->pbm_B.iommu = iommu;
 
-	/* XXX MSI support XXX */
-
-	/* Like PSYCHO and SCHIZO we have a 2GB aligned area
-	 * for memory space.
-	 */
-	pci_memspace_mask = 0x7fffffffUL;
-
 	if (pci_fire_pbm_init(p, dp, portid))
 		goto fatal_memory_error;
 
diff --git a/arch/sparc64/kernel/pci_impl.h b/arch/sparc64/kernel/pci_impl.h
index f660c2b685e..4a50da13ce4 100644
--- a/arch/sparc64/kernel/pci_impl.h
+++ b/arch/sparc64/kernel/pci_impl.h
@@ -29,6 +29,33 @@
 #define PCI_STC_FLUSHFLAG_SET(STC) \
 	(*((STC)->strbuf_flushflag) != 0UL)
 
+#ifdef CONFIG_PCI_MSI
+struct pci_pbm_info;
+struct sparc64_msiq_ops {
+	int (*get_head)(struct pci_pbm_info *pbm, unsigned long msiqid,
+			unsigned long *head);
+	int (*dequeue_msi)(struct pci_pbm_info *pbm, unsigned long msiqid,
+			   unsigned long *head, unsigned long *msi);
+	int (*set_head)(struct pci_pbm_info *pbm, unsigned long msiqid,
+			unsigned long head);
+	int (*msi_setup)(struct pci_pbm_info *pbm, unsigned long msiqid,
+			 unsigned long msi, int is_msi64);
+	int (*msi_teardown)(struct pci_pbm_info *pbm, unsigned long msi);
+	int (*msiq_alloc)(struct pci_pbm_info *pbm);
+	void (*msiq_free)(struct pci_pbm_info *pbm);
+	int (*msiq_build_irq)(struct pci_pbm_info *pbm, unsigned long msiqid,
+			      unsigned long devino);
+};
+
+extern void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
+				 const struct sparc64_msiq_ops *ops);
+
+struct sparc64_msiq_cookie {
+	struct pci_pbm_info *pbm;
+	unsigned long msiqid;
+};
+#endif
+
 struct pci_controller_info;
 
 struct pci_pbm_info {
@@ -90,6 +117,8 @@ struct pci_pbm_info {
 	u32				msiq_ent_count;
 	u32				msiq_first;
 	u32				msiq_first_devino;
+	u32				msiq_rotor;
+	struct sparc64_msiq_cookie	*msiq_irq_cookies;
 	u32				msi_num;
 	u32				msi_first;
 	u32				msi_data_mask;
@@ -100,9 +129,11 @@ struct pci_pbm_info {
 	u32				msi64_len;
 	void				*msi_queues;
 	unsigned long			*msi_bitmap;
+	unsigned int			*msi_irq_table;
 	int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev,
 			     struct msi_desc *entry);
 	void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev);
+	const struct sparc64_msiq_ops	*msi_ops;
 #endif /* !(CONFIG_PCI_MSI) */
 
 	/* This PBM's streaming buffer. */
@@ -126,7 +157,6 @@ struct pci_controller_info {
 };
 
 extern struct pci_pbm_info *pci_pbm_root;
-extern unsigned long pci_memspace_mask;
 
 extern int pci_num_pbms;
 
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c
new file mode 100644
index 00000000000..31a165fd3e4
--- /dev/null
+++ b/arch/sparc64/kernel/pci_msi.c
@@ -0,0 +1,433 @@
+/* pci_msi.c: Sparc64 MSI support common layer.
+ *
+ * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
+ */
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include "pci_impl.h"
+
+static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie)
+{
+	struct sparc64_msiq_cookie *msiq_cookie = cookie;
+	struct pci_pbm_info *pbm = msiq_cookie->pbm;
+	unsigned long msiqid = msiq_cookie->msiqid;
+	const struct sparc64_msiq_ops *ops;
+	unsigned long orig_head, head;
+	int err;
+
+	ops = pbm->msi_ops;
+
+	err = ops->get_head(pbm, msiqid, &head);
+	if (unlikely(err < 0))
+		goto err_get_head;
+
+	orig_head = head;
+	for (;;) {
+		unsigned long msi;
+
+		err = ops->dequeue_msi(pbm, msiqid, &head, &msi);
+		if (likely(err > 0))
+			__do_IRQ(pbm->msi_irq_table[msi - pbm->msi_first]);
+
+		if (unlikely(err < 0))
+			goto err_dequeue;
+
+		if (err == 0)
+			break;
+	}
+	if (likely(head != orig_head)) {
+		err = ops->set_head(pbm, msiqid, head);
+		if (unlikely(err < 0))
+			goto err_set_head;
+	}
+	return IRQ_HANDLED;
+
+err_get_head:
+	printk(KERN_EMERG "MSI: Get head on msiqid[%lu] gives error %d\n",
+	       msiqid, err);
+	goto err_out;
+
+err_dequeue:
+	printk(KERN_EMERG "MSI: Dequeue head[%lu] from msiqid[%lu] "
+	       "gives error %d\n",
+	       head, msiqid, err);
+	goto err_out;
+
+err_set_head:
+	printk(KERN_EMERG "MSI: Set head[%lu] on msiqid[%lu] "
+	       "gives error %d\n",
+	       head, msiqid, err);
+	goto err_out;
+
+err_out:
+	return IRQ_NONE;
+}
+
+static u32 pick_msiq(struct pci_pbm_info *pbm)
+{
+	static DEFINE_SPINLOCK(rotor_lock);
+	unsigned long flags;
+	u32 ret, rotor;
+
+	spin_lock_irqsave(&rotor_lock, flags);
+
+	rotor = pbm->msiq_rotor;
+	ret = pbm->msiq_first + rotor;
+
+	if (++rotor >= pbm->msiq_num)
+		rotor = 0;
+	pbm->msiq_rotor = rotor;
+
+	spin_unlock_irqrestore(&rotor_lock, flags);
+
+	return ret;
+}
+
+
+static int alloc_msi(struct pci_pbm_info *pbm)
+{
+	int i;
+
+	for (i = 0; i < pbm->msi_num; i++) {
+		if (!test_and_set_bit(i, pbm->msi_bitmap))
+			return i + pbm->msi_first;
+	}
+
+	return -ENOENT;
+}
+
+static void free_msi(struct pci_pbm_info *pbm, int msi_num)
+{
+	msi_num -= pbm->msi_first;
+	clear_bit(msi_num, pbm->msi_bitmap);
+}
+
+static struct irq_chip msi_irq = {
+	.typename	= "PCI-MSI",
+	.mask		= mask_msi_irq,
+	.unmask		= unmask_msi_irq,
+	.enable		= unmask_msi_irq,
+	.disable	= mask_msi_irq,
+	/* XXX affinity XXX */
+};
+
+int sparc64_setup_msi_irq(unsigned int *virt_irq_p,
+			  struct pci_dev *pdev,
+			  struct msi_desc *entry)
+{
+	struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
+	const struct sparc64_msiq_ops *ops = pbm->msi_ops;
+	struct msi_msg msg;
+	int msi, err;
+	u32 msiqid;
+
+	*virt_irq_p = virt_irq_alloc(0, 0);
+	err = -ENOMEM;
+	if (!*virt_irq_p)
+		goto out_err;
+
+	set_irq_chip(*virt_irq_p, &msi_irq);
+
+	err = alloc_msi(pbm);
+	if (unlikely(err < 0))
+		goto out_virt_irq_free;
+
+	msi = err;
+
+	msiqid = pick_msiq(pbm);
+
+	err = ops->msi_setup(pbm, msiqid, msi,
+			     (entry->msi_attrib.is_64 ? 1 : 0));
+	if (err)
+		goto out_msi_free;
+
+	pbm->msi_irq_table[msi - pbm->msi_first] = *virt_irq_p;
+
+	if (entry->msi_attrib.is_64) {
+		msg.address_hi = pbm->msi64_start >> 32;
+		msg.address_lo = pbm->msi64_start & 0xffffffff;
+	} else {
+		msg.address_hi = 0;
+		msg.address_lo = pbm->msi32_start;
+	}
+	msg.data = msi;
+
+	set_irq_msi(*virt_irq_p, entry);
+	write_msi_msg(*virt_irq_p, &msg);
+
+	return 0;
+
+out_msi_free:
+	free_msi(pbm, msi);
+
+out_virt_irq_free:
+	set_irq_chip(*virt_irq_p, NULL);
+	virt_irq_free(*virt_irq_p);
+	*virt_irq_p = 0;
+
+out_err:
+	return err;
+}
+
+void sparc64_teardown_msi_irq(unsigned int virt_irq,
+			      struct pci_dev *pdev)
+{
+	struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
+	const struct sparc64_msiq_ops *ops = pbm->msi_ops;
+	unsigned int msi_num;
+	int i, err;
+
+	for (i = 0; i < pbm->msi_num; i++) {
+		if (pbm->msi_irq_table[i] == virt_irq)
+			break;
+	}
+	if (i >= pbm->msi_num) {
+		printk(KERN_ERR "%s: teardown: No MSI for irq %u\n",
+		       pbm->name, virt_irq);
+		return;
+	}
+
+	msi_num = pbm->msi_first + i;
+	pbm->msi_irq_table[i] = ~0U;
+
+	err = ops->msi_teardown(pbm, msi_num);
+	if (err) {
+		printk(KERN_ERR "%s: teardown: ops->teardown() on MSI %u, "
+		       "irq %u, gives error %d\n",
+		       pbm->name, msi_num, virt_irq, err);
+		return;
+	}
+
+	free_msi(pbm, msi_num);
+
+	set_irq_chip(virt_irq, NULL);
+	virt_irq_free(virt_irq);
+}
+
+static int msi_bitmap_alloc(struct pci_pbm_info *pbm)
+{
+	unsigned long size, bits_per_ulong;
+
+	bits_per_ulong = sizeof(unsigned long) * 8;
+	size = (pbm->msi_num + (bits_per_ulong - 1)) & ~(bits_per_ulong - 1);
+	size /= 8;
+	BUG_ON(size % sizeof(unsigned long));
+
+	pbm->msi_bitmap = kzalloc(size, GFP_KERNEL);
+	if (!pbm->msi_bitmap)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void msi_bitmap_free(struct pci_pbm_info *pbm)
+{
+	kfree(pbm->msi_bitmap);
+	pbm->msi_bitmap = NULL;
+}
+
+static int msi_table_alloc(struct pci_pbm_info *pbm)
+{
+	int size, i;
+
+	size = pbm->msiq_num * sizeof(struct sparc64_msiq_cookie);
+	pbm->msiq_irq_cookies = kzalloc(size, GFP_KERNEL);
+	if (!pbm->msiq_irq_cookies)
+		return -ENOMEM;
+
+	for (i = 0; i < pbm->msiq_num; i++) {
+		struct sparc64_msiq_cookie *p;
+
+		p = &pbm->msiq_irq_cookies[i];
+		p->pbm = pbm;
+		p->msiqid = pbm->msiq_first + i;
+	}
+
+	size = pbm->msi_num * sizeof(unsigned int);
+	pbm->msi_irq_table = kzalloc(size, GFP_KERNEL);
+	if (!pbm->msi_irq_table) {
+		kfree(pbm->msiq_irq_cookies);
+		pbm->msiq_irq_cookies = NULL;
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void msi_table_free(struct pci_pbm_info *pbm)
+{
+	kfree(pbm->msiq_irq_cookies);
+	pbm->msiq_irq_cookies = NULL;
+
+	kfree(pbm->msi_irq_table);
+	pbm->msi_irq_table = NULL;
+}
+
+static int bringup_one_msi_queue(struct pci_pbm_info *pbm,
+				 const struct sparc64_msiq_ops *ops,
+				 unsigned long msiqid,
+				 unsigned long devino)
+{
+	int irq = ops->msiq_build_irq(pbm, msiqid, devino);
+	int err;
+
+	if (irq < 0)
+		return irq;
+
+	err = request_irq(irq, sparc64_msiq_interrupt, 0,
+			  "MSIQ",
+			  &pbm->msiq_irq_cookies[msiqid - pbm->msiq_first]);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int sparc64_bringup_msi_queues(struct pci_pbm_info *pbm,
+				      const struct sparc64_msiq_ops *ops)
+{
+	int i;
+
+	for (i = 0; i < pbm->msiq_num; i++) {
+		unsigned long msiqid = i + pbm->msiq_first;
+		unsigned long devino = i + pbm->msiq_first_devino;
+		int err;
+
+		err = bringup_one_msi_queue(pbm, ops, msiqid, devino);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+void sparc64_pbm_msi_init(struct pci_pbm_info *pbm,
+			  const struct sparc64_msiq_ops *ops)
+{
+	const u32 *val;
+	int len;
+
+	val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
+	if (!val || len != 4)
+		goto no_msi;
+	pbm->msiq_num = *val;
+	if (pbm->msiq_num) {
+		const struct msiq_prop {
+			u32 first_msiq;
+			u32 num_msiq;
+			u32 first_devino;
+		} *mqp;
+		const struct msi_range_prop {
+			u32 first_msi;
+			u32 num_msi;
+		} *mrng;
+		const struct addr_range_prop {
+			u32 msi32_high;
+			u32 msi32_low;
+			u32 msi32_len;
+			u32 msi64_high;
+			u32 msi64_low;
+			u32 msi64_len;
+		} *arng;
+
+		val = of_get_property(pbm->prom_node, "msi-eq-size", &len);
+		if (!val || len != 4)
+			goto no_msi;
+
+		pbm->msiq_ent_count = *val;
+
+		mqp = of_get_property(pbm->prom_node,
+				      "msi-eq-to-devino", &len);
+		if (!mqp)
+			mqp = of_get_property(pbm->prom_node,
+					      "msi-eq-devino", &len);
+		if (!mqp || len != sizeof(struct msiq_prop))
+			goto no_msi;
+
+		pbm->msiq_first = mqp->first_msiq;
+		pbm->msiq_first_devino = mqp->first_devino;
+
+		val = of_get_property(pbm->prom_node, "#msi", &len);
+		if (!val || len != 4)
+			goto no_msi;
+		pbm->msi_num = *val;
+
+		mrng = of_get_property(pbm->prom_node, "msi-ranges", &len);
+		if (!mrng || len != sizeof(struct msi_range_prop))
+			goto no_msi;
+		pbm->msi_first = mrng->first_msi;
+
+		val = of_get_property(pbm->prom_node, "msi-data-mask", &len);
+		if (!val || len != 4)
+			goto no_msi;
+		pbm->msi_data_mask = *val;
+
+		val = of_get_property(pbm->prom_node, "msix-data-width", &len);
+		if (!val || len != 4)
+			goto no_msi;
+		pbm->msix_data_width = *val;
+
+		arng = of_get_property(pbm->prom_node, "msi-address-ranges",
+				       &len);
+		if (!arng || len != sizeof(struct addr_range_prop))
+			goto no_msi;
+		pbm->msi32_start = ((u64)arng->msi32_high << 32) |
+			(u64) arng->msi32_low;
+		pbm->msi64_start = ((u64)arng->msi64_high << 32) |
+			(u64) arng->msi64_low;
+		pbm->msi32_len = arng->msi32_len;
+		pbm->msi64_len = arng->msi64_len;
+
+		if (msi_bitmap_alloc(pbm))
+			goto no_msi;
+
+		if (msi_table_alloc(pbm)) {
+			msi_bitmap_free(pbm);
+			goto no_msi;
+		}
+
+		if (ops->msiq_alloc(pbm)) {
+			msi_table_free(pbm);
+			msi_bitmap_free(pbm);
+			goto no_msi;
+		}
+
+		if (sparc64_bringup_msi_queues(pbm, ops)) {
+			ops->msiq_free(pbm);
+			msi_table_free(pbm);
+			msi_bitmap_free(pbm);
+			goto no_msi;
+		}
+
+		printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] "
+		       "devino[0x%x]\n",
+		       pbm->name,
+		       pbm->msiq_first, pbm->msiq_num,
+		       pbm->msiq_ent_count,
+		       pbm->msiq_first_devino);
+		printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] "
+		       "width[%u]\n",
+		       pbm->name,
+		       pbm->msi_first, pbm->msi_num, pbm->msi_data_mask,
+		       pbm->msix_data_width);
+		printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] "
+		       "addr64[0x%lx:0x%x]\n",
+		       pbm->name,
+		       pbm->msi32_start, pbm->msi32_len,
+		       pbm->msi64_start, pbm->msi64_len);
+		printk(KERN_INFO "%s: MSI queues at RA [%016lx]\n",
+		       pbm->name,
+		       __pa(pbm->msi_queues));
+
+		pbm->msi_ops = ops;
+		pbm->setup_msi_irq = sparc64_setup_msi_irq;
+		pbm->teardown_msi_irq = sparc64_teardown_msi_irq;
+	}
+	return;
+
+no_msi:
+	pbm->msiq_num = 0;
+	printk(KERN_INFO "%s: No MSI support.\n", pbm->name);
+}
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index b6b4cfea5b5..d27ee5d528a 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -1058,12 +1058,6 @@ void psycho_init(struct device_node *dp, char *model_name)
 	p->pbm_A.config_space = p->pbm_B.config_space =
 		(pr_regs[2].phys_addr + PSYCHO_CONFIGSPACE);
 
-	/*
-	 * Psycho's PCI MEM space is mapped to a 2GB aligned area, so
-	 * we need to adjust our MEM space mask.
-	 */
-	pci_memspace_mask = 0x7fffffffUL;
-
 	psycho_controller_hwinit(&p->pbm_A);
 
 	if (psycho_iommu_init(&p->pbm_A))
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 3c30bfa1f3a..9546ba9f5de 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -1464,9 +1464,6 @@ static void __schizo_init(struct device_node *dp, char *model_name, int chip_typ
 
 	p->pbm_B.iommu = iommu;
 
-	/* Like PSYCHO we have a 2GB aligned area for memory space. */
-	pci_memspace_mask = 0x7fffffffUL;
-
 	if (schizo_pbm_init(p, dp, portid, chip_type))
 		goto fatal_memory_error;
 
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index da724b13e89..95de1444ee6 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -748,111 +748,102 @@ struct pci_sun4v_msiq_entry {
 	u64		reserved2;
 };
 
-/* For now this just runs as a pre-handler for the real interrupt handler.
- * So we just walk through the queue and ACK all the entries, update the
- * head pointer, and return.
- *
- * In the longer term it would be nice to do something more integrated
- * wherein we can pass in some of this MSI info to the drivers.  This
- * would be most useful for PCIe fabric error messages, although we could
- * invoke those directly from the loop here in order to pass the info around.
- */
-static void pci_sun4v_msi_prehandler(unsigned int ino, void *data1, void *data2)
+static int pci_sun4v_get_head(struct pci_pbm_info *pbm, unsigned long msiqid,
+			      unsigned long *head)
 {
-	struct pci_pbm_info *pbm = data1;
-	struct pci_sun4v_msiq_entry *base, *ep;
-	unsigned long msiqid, orig_head, head, type, err;
-
-	msiqid = (unsigned long) data2;
+	unsigned long err, limit;
 
-	head = 0xdeadbeef;
-	err = pci_sun4v_msiq_gethead(pbm->devhandle, msiqid, &head);
+	err = pci_sun4v_msiq_gethead(pbm->devhandle, msiqid, head);
 	if (unlikely(err))
-		goto hv_error_get;
-
-	if (unlikely(head >= (pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry))))
-		goto bad_offset;
-
-	head /= sizeof(struct pci_sun4v_msiq_entry);
-	orig_head = head;
-	base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) *
-				   (pbm->msiq_ent_count *
-				    sizeof(struct pci_sun4v_msiq_entry))));
-	ep = &base[head];
-	while ((ep->version_type & MSIQ_TYPE_MASK) != 0) {
-		type = (ep->version_type & MSIQ_TYPE_MASK) >> MSIQ_TYPE_SHIFT;
-		if (unlikely(type != MSIQ_TYPE_MSI32 &&
-			     type != MSIQ_TYPE_MSI64))
-			goto bad_type;
-
-		pci_sun4v_msi_setstate(pbm->devhandle,
-				       ep->msi_data /* msi_num */,
-				       HV_MSISTATE_IDLE);
-
-		/* Clear the entry.  */
-		ep->version_type &= ~MSIQ_TYPE_MASK;
-
-		/* Go to next entry in ring.  */
-		head++;
-		if (head >= pbm->msiq_ent_count)
-			head = 0;
-		ep = &base[head];
-	}
+		return -ENXIO;
 
-	if (likely(head != orig_head)) {
-		/* ACK entries by updating head pointer.  */
-		head *= sizeof(struct pci_sun4v_msiq_entry);
-		err = pci_sun4v_msiq_sethead(pbm->devhandle, msiqid, head);
-		if (unlikely(err))
-			goto hv_error_set;
-	}
-	return;
+	limit = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry);
+	if (unlikely(*head >= limit))
+		return -EFBIG;
 
-hv_error_set:
-	printk(KERN_EMERG "MSI: Hypervisor set head gives error %lu\n", err);
-	goto hv_error_cont;
+	return 0;
+}
 
-hv_error_get:
-	printk(KERN_EMERG "MSI: Hypervisor get head gives error %lu\n", err);
+static int pci_sun4v_dequeue_msi(struct pci_pbm_info *pbm,
+				 unsigned long msiqid, unsigned long *head,
+				 unsigned long *msi)
+{
+	struct pci_sun4v_msiq_entry *ep;
+	unsigned long err, type;
 
-hv_error_cont:
-	printk(KERN_EMERG "MSI: devhandle[%x] msiqid[%lx] head[%lu]\n",
-	       pbm->devhandle, msiqid, head);
-	return;
+	/* Note: void pointer arithmetic, 'head' is a byte offset  */
+	ep = (pbm->msi_queues + ((msiqid - pbm->msiq_first) *
+				 (pbm->msiq_ent_count *
+				  sizeof(struct pci_sun4v_msiq_entry))) +
+	      *head);
 
-bad_offset:
-	printk(KERN_EMERG "MSI: Hypervisor gives bad offset %lx max(%lx)\n",
-	       head, pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry));
-	return;
+	if ((ep->version_type & MSIQ_TYPE_MASK) == 0)
+		return 0;
 
-bad_type:
-	printk(KERN_EMERG "MSI: Entry has bad type %lx\n", type);
-	return;
+	type = (ep->version_type & MSIQ_TYPE_MASK) >> MSIQ_TYPE_SHIFT;
+	if (unlikely(type != MSIQ_TYPE_MSI32 &&
+		     type != MSIQ_TYPE_MSI64))
+		return -EINVAL;
+
+	*msi = ep->msi_data;
+
+	err = pci_sun4v_msi_setstate(pbm->devhandle,
+				     ep->msi_data /* msi_num */,
+				     HV_MSISTATE_IDLE);
+	if (unlikely(err))
+		return -ENXIO;
+
+	/* Clear the entry.  */
+	ep->version_type &= ~MSIQ_TYPE_MASK;
+
+	(*head) += sizeof(struct pci_sun4v_msiq_entry);
+	if (*head >=
+	    (pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry)))
+		*head = 0;
+
+	return 1;
 }
 
-static int msi_bitmap_alloc(struct pci_pbm_info *pbm)
+static int pci_sun4v_set_head(struct pci_pbm_info *pbm, unsigned long msiqid,
+			      unsigned long head)
 {
-	unsigned long size, bits_per_ulong;
+	unsigned long err;
 
-	bits_per_ulong = sizeof(unsigned long) * 8;
-	size = (pbm->msi_num + (bits_per_ulong - 1)) & ~(bits_per_ulong - 1);
-	size /= 8;
-	BUG_ON(size % sizeof(unsigned long));
+	err = pci_sun4v_msiq_sethead(pbm->devhandle, msiqid, head);
+	if (unlikely(err))
+		return -EINVAL;
 
-	pbm->msi_bitmap = kzalloc(size, GFP_KERNEL);
-	if (!pbm->msi_bitmap)
-		return -ENOMEM;
+	return 0;
+}
 
+static int pci_sun4v_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid,
+			       unsigned long msi, int is_msi64)
+{
+	if (pci_sun4v_msi_setmsiq(pbm->devhandle, msi, msiqid,
+				  (is_msi64 ?
+				   HV_MSITYPE_MSI64 : HV_MSITYPE_MSI32)))
+		return -ENXIO;
+	if (pci_sun4v_msi_setstate(pbm->devhandle, msi, HV_MSISTATE_IDLE))
+		return -ENXIO;
+	if (pci_sun4v_msi_setvalid(pbm->devhandle, msi, HV_MSIVALID_VALID))
+		return -ENXIO;
 	return 0;
 }
 
-static void msi_bitmap_free(struct pci_pbm_info *pbm)
+static int pci_sun4v_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi)
 {
-	kfree(pbm->msi_bitmap);
-	pbm->msi_bitmap = NULL;
+	unsigned long err, msiqid;
+
+	err = pci_sun4v_msi_getmsiq(pbm->devhandle, msi, &msiqid);
+	if (err)
+		return -ENXIO;
+
+	pci_sun4v_msi_setvalid(pbm->devhandle, msi, HV_MSIVALID_INVALID);
+
+	return 0;
 }
 
-static int msi_queue_alloc(struct pci_pbm_info *pbm)
+static int pci_sun4v_msiq_alloc(struct pci_pbm_info *pbm)
 {
 	unsigned long q_size, alloc_size, pages, order;
 	int i;
@@ -906,232 +897,59 @@ h_error:
 	return -EINVAL;
 }
 
-
-static int alloc_msi(struct pci_pbm_info *pbm)
+static void pci_sun4v_msiq_free(struct pci_pbm_info *pbm)
 {
+	unsigned long q_size, alloc_size, pages, order;
 	int i;
 
-	for (i = 0; i < pbm->msi_num; i++) {
-		if (!test_and_set_bit(i, pbm->msi_bitmap))
-			return i + pbm->msi_first;
-	}
-
-	return -ENOENT;
-}
-
-static void free_msi(struct pci_pbm_info *pbm, int msi_num)
-{
-	msi_num -= pbm->msi_first;
-	clear_bit(msi_num, pbm->msi_bitmap);
-}
-
-static int pci_sun4v_setup_msi_irq(unsigned int *virt_irq_p,
-				   struct pci_dev *pdev,
-				   struct msi_desc *entry)
-{
-	struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
-	unsigned long devino, msiqid;
-	struct msi_msg msg;
-	int msi_num, err;
-
-	*virt_irq_p = 0;
-
-	msi_num = alloc_msi(pbm);
-	if (msi_num < 0)
-		return msi_num;
-
-	err = sun4v_build_msi(pbm->devhandle, virt_irq_p,
-			      pbm->msiq_first_devino,
-			      (pbm->msiq_first_devino +
-			       pbm->msiq_num));
-	if (err < 0)
-		goto out_err;
-	devino = err;
-
-	msiqid = ((devino - pbm->msiq_first_devino) +
-		  pbm->msiq_first);
-
-	err = -EINVAL;
-	if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE))
-	if (err)
-		goto out_err;
-
-	if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID))
-		goto out_err;
-
-	if (pci_sun4v_msi_setmsiq(pbm->devhandle,
-				  msi_num, msiqid,
-				  (entry->msi_attrib.is_64 ?
-				   HV_MSITYPE_MSI64 : HV_MSITYPE_MSI32)))
-		goto out_err;
-
-	if (pci_sun4v_msi_setstate(pbm->devhandle, msi_num, HV_MSISTATE_IDLE))
-		goto out_err;
-
-	if (pci_sun4v_msi_setvalid(pbm->devhandle, msi_num, HV_MSIVALID_VALID))
-		goto out_err;
-
-	sparc64_set_msi(*virt_irq_p, msi_num);
+	for (i = 0; i < pbm->msiq_num; i++) {
+		unsigned long msiqid = pbm->msiq_first + i;
 
-	if (entry->msi_attrib.is_64) {
-		msg.address_hi = pbm->msi64_start >> 32;
-		msg.address_lo = pbm->msi64_start & 0xffffffff;
-	} else {
-		msg.address_hi = 0;
-		msg.address_lo = pbm->msi32_start;
+		(void) pci_sun4v_msiq_conf(pbm->devhandle, msiqid, 0UL, 0);
 	}
-	msg.data = msi_num;
-
-	set_irq_msi(*virt_irq_p, entry);
-	write_msi_msg(*virt_irq_p, &msg);
 
-	irq_install_pre_handler(*virt_irq_p,
-				pci_sun4v_msi_prehandler,
-				pbm, (void *) msiqid);
+	q_size = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry);
+	alloc_size = (pbm->msiq_num * q_size);
+	order = get_order(alloc_size);
 
-	return 0;
+	pages = (unsigned long) pbm->msi_queues;
 
-out_err:
-	free_msi(pbm, msi_num);
-	return err;
+	free_pages(pages, order);
 
+	pbm->msi_queues = NULL;
 }
 
-static void pci_sun4v_teardown_msi_irq(unsigned int virt_irq,
-				       struct pci_dev *pdev)
+static int pci_sun4v_msiq_build_irq(struct pci_pbm_info *pbm,
+				    unsigned long msiqid,
+				    unsigned long devino)
 {
-	struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
-	unsigned long msiqid, err;
-	unsigned int msi_num;
-
-	msi_num = sparc64_get_msi(virt_irq);
-	err = pci_sun4v_msi_getmsiq(pbm->devhandle, msi_num, &msiqid);
-	if (err) {
-		printk(KERN_ERR "%s: getmsiq gives error %lu\n",
-		       pbm->name, err);
-		return;
-	}
+	unsigned int virt_irq = sun4v_build_irq(pbm->devhandle, devino);
 
-	pci_sun4v_msi_setvalid(pbm->devhandle, msi_num, HV_MSIVALID_INVALID);
-	pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_INVALID);
+	if (!virt_irq)
+		return -ENOMEM;
 
-	free_msi(pbm, msi_num);
+	if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE))
+		return -EINVAL;
+	if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID))
+		return -EINVAL;
 
-	/* The sun4v_destroy_msi() will liberate the devino and thus the MSIQ
-	 * allocation.
-	 */
-	sun4v_destroy_msi(virt_irq);
+	return virt_irq;
 }
 
+static const struct sparc64_msiq_ops pci_sun4v_msiq_ops = {
+	.get_head	=	pci_sun4v_get_head,
+	.dequeue_msi	=	pci_sun4v_dequeue_msi,
+	.set_head	=	pci_sun4v_set_head,
+	.msi_setup	=	pci_sun4v_msi_setup,
+	.msi_teardown	=	pci_sun4v_msi_teardown,
+	.msiq_alloc	=	pci_sun4v_msiq_alloc,
+	.msiq_free	=	pci_sun4v_msiq_free,
+	.msiq_build_irq	=	pci_sun4v_msiq_build_irq,
+};
+
 static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
 {
-	const u32 *val;
-	int len;
-
-	val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
-	if (!val || len != 4)
-		goto no_msi;
-	pbm->msiq_num = *val;
-	if (pbm->msiq_num) {
-		const struct msiq_prop {
-			u32 first_msiq;
-			u32 num_msiq;
-			u32 first_devino;
-		} *mqp;
-		const struct msi_range_prop {
-			u32 first_msi;
-			u32 num_msi;
-		} *mrng;
-		const struct addr_range_prop {
-			u32 msi32_high;
-			u32 msi32_low;
-			u32 msi32_len;
-			u32 msi64_high;
-			u32 msi64_low;
-			u32 msi64_len;
-		} *arng;
-
-		val = of_get_property(pbm->prom_node, "msi-eq-size", &len);
-		if (!val || len != 4)
-			goto no_msi;
-
-		pbm->msiq_ent_count = *val;
-
-		mqp = of_get_property(pbm->prom_node,
-				      "msi-eq-to-devino", &len);
-		if (!mqp || len != sizeof(struct msiq_prop))
-			goto no_msi;
-
-		pbm->msiq_first = mqp->first_msiq;
-		pbm->msiq_first_devino = mqp->first_devino;
-
-		val = of_get_property(pbm->prom_node, "#msi", &len);
-		if (!val || len != 4)
-			goto no_msi;
-		pbm->msi_num = *val;
-
-		mrng = of_get_property(pbm->prom_node, "msi-ranges", &len);
-		if (!mrng || len != sizeof(struct msi_range_prop))
-			goto no_msi;
-		pbm->msi_first = mrng->first_msi;
-
-		val = of_get_property(pbm->prom_node, "msi-data-mask", &len);
-		if (!val || len != 4)
-			goto no_msi;
-		pbm->msi_data_mask = *val;
-
-		val = of_get_property(pbm->prom_node, "msix-data-width", &len);
-		if (!val || len != 4)
-			goto no_msi;
-		pbm->msix_data_width = *val;
-
-		arng = of_get_property(pbm->prom_node, "msi-address-ranges",
-				       &len);
-		if (!arng || len != sizeof(struct addr_range_prop))
-			goto no_msi;
-		pbm->msi32_start = ((u64)arng->msi32_high << 32) |
-			(u64) arng->msi32_low;
-		pbm->msi64_start = ((u64)arng->msi64_high << 32) |
-			(u64) arng->msi64_low;
-		pbm->msi32_len = arng->msi32_len;
-		pbm->msi64_len = arng->msi64_len;
-
-		if (msi_bitmap_alloc(pbm))
-			goto no_msi;
-
-		if (msi_queue_alloc(pbm)) {
-			msi_bitmap_free(pbm);
-			goto no_msi;
-		}
-
-		printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] "
-		       "devino[0x%x]\n",
-		       pbm->name,
-		       pbm->msiq_first, pbm->msiq_num,
-		       pbm->msiq_ent_count,
-		       pbm->msiq_first_devino);
-		printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] "
-		       "width[%u]\n",
-		       pbm->name,
-		       pbm->msi_first, pbm->msi_num, pbm->msi_data_mask,
-		       pbm->msix_data_width);
-		printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] "
-		       "addr64[0x%lx:0x%x]\n",
-		       pbm->name,
-		       pbm->msi32_start, pbm->msi32_len,
-		       pbm->msi64_start, pbm->msi64_len);
-		printk(KERN_INFO "%s: MSI queues at RA [%p]\n",
-		       pbm->name,
-		       pbm->msi_queues);
-	}
-	pbm->setup_msi_irq = pci_sun4v_setup_msi_irq;
-	pbm->teardown_msi_irq = pci_sun4v_teardown_msi_irq;
-
-	return;
-
-no_msi:
-	pbm->msiq_num = 0;
-	printk(KERN_INFO "%s: No MSI support.\n", pbm->name);
+	sparc64_pbm_msi_init(pbm, &pci_sun4v_msiq_ops);
 }
 #else /* CONFIG_PCI_MSI */
 static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
@@ -1237,11 +1055,6 @@ void __init sun4v_pci_init(struct device_node *dp, char *model_name)
 
 	p->pbm_B.iommu = iommu;
 
-	/* Like PSYCHO and SCHIZO we have a 2GB aligned area
-	 * for memory space.
-	 */
-	pci_memspace_mask = 0x7fffffffUL;
-
 	pci_sun4v_pbm_init(p, dp, devhandle);
 	return;
 
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 881a09ee4c4..850cdffdd69 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -105,9 +105,11 @@ static struct of_device_id power_match[] = {
 };
 
 static struct of_platform_driver power_driver = {
-	.name		= "power",
 	.match_table	= power_match,
 	.probe		= power_probe,
+	.driver		= {
+		.name	= "power",
+	},
 };
 
 void __init power_init(void)
diff --git a/arch/sparc64/kernel/sun4v_ivec.S b/arch/sparc64/kernel/sun4v_ivec.S
index 574bc248bca..e2f8e1b4882 100644
--- a/arch/sparc64/kernel/sun4v_ivec.S
+++ b/arch/sparc64/kernel/sun4v_ivec.S
@@ -96,19 +96,21 @@ sun4v_dev_mondo:
 	stxa	%g2, [%g4] ASI_QUEUE
 	membar	#Sync
 
-	/* Get &__irq_work[smp_processor_id()] into %g1.  */
-	TRAP_LOAD_IRQ_WORK(%g1, %g4)
+	TRAP_LOAD_IRQ_WORK_PA(%g1, %g4)
 
-	/* Get &ivector_table[IVEC] into %g4.  */
-	sethi	%hi(ivector_table), %g4
-	sllx	%g3, 3, %g3
-	or	%g4, %lo(ivector_table), %g4
+	/* For VIRQs, cookie is encoded as ~bucket_phys_addr  */
+	brlz,pt %g3, 1f
+	 xnor	%g3, %g0, %g4
+
+	/* Get __pa(&ivector_table[IVEC]) into %g4.  */
+	sethi	%hi(ivector_table_pa), %g4
+	ldx	[%g4 + %lo(ivector_table_pa)], %g4
+	sllx	%g3, 4, %g3
 	add	%g4, %g3, %g4
 
-	/* Insert ivector_table[] entry into __irq_work[] queue.  */
-	lduw	[%g1], %g2		/* g2 = irq_work(cpu) */
-	stw	%g2, [%g4 + 0x00]	/* bucket->irq_chain = g2 */
-	stw	%g4, [%g1]		/* irq_work(cpu) = bucket */
+1:	ldx	[%g1], %g2
+	stxa	%g2, [%g4] ASI_PHYS_USE_EC
+	stx	%g4, [%g1]
 
 	/* Signal the interrupt by setting (1 << pil) in %softint.  */
 	wr	%g0, 1 << PIL_DEVICE_IRQ, %set_softint
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index d108eeb0734..0d5c5026494 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -436,7 +436,7 @@ out:
 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
 			unsigned long third, void __user *ptr, long fifth)
 {
-	int err;
+	long err;
 
 	/* No need for backward compatibility. We can start fresh... */
 	if (call <= SEMCTL) {
@@ -453,16 +453,9 @@ asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
 			err = sys_semget(first, (int)second, (int)third);
 			goto out;
 		case SEMCTL: {
-			union semun fourth;
-			err = -EINVAL;
-			if (!ptr)
-				goto out;
-			err = -EFAULT;
-			if (get_user(fourth.__pad,
-				     (void __user * __user *) ptr))
-				goto out;
-			err = sys_semctl(first, (int)second | IPC_64,
-					 (int)third, fourth);
+			err = sys_semctl(first, third,
+					 (int)second | IPC_64,
+					 (union semun) ptr);
 			goto out;
 		}
 		default:
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 69cad1b653c..cd8c740cba1 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -764,9 +764,11 @@ static struct of_device_id clock_match[] = {
 };
 
 static struct of_platform_driver clock_driver = {
-	.name		= "clock",
 	.match_table	= clock_match,
 	.probe		= clock_probe,
+	.driver		= {
+		.name	= "clock",
+	},
 };
 
 static int __init clock_init(void)
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 6ef42b8e53d..34573a55b6e 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2569,8 +2569,8 @@ void __init trap_init(void)
 	     offsetof(struct trap_per_cpu, tsb_huge)) ||
 	    (TRAP_PER_CPU_TSB_HUGE_TEMP !=
 	     offsetof(struct trap_per_cpu, tsb_huge_temp)) ||
-	    (TRAP_PER_CPU_IRQ_WORKLIST !=
-	     offsetof(struct trap_per_cpu, irq_worklist)) ||
+	    (TRAP_PER_CPU_IRQ_WORKLIST_PA !=
+	     offsetof(struct trap_per_cpu, irq_worklist_pa)) ||
 	    (TRAP_PER_CPU_CPU_MONDO_QMASK !=
 	     offsetof(struct trap_per_cpu, cpu_mondo_qmask)) ||
 	    (TRAP_PER_CPU_DEV_MONDO_QMASK !=
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S
index b982fa3dd74..9fcd503bc04 100644
--- a/arch/sparc64/kernel/vmlinux.lds.S
+++ b/arch/sparc64/kernel/vmlinux.lds.S
@@ -10,105 +10,138 @@ ENTRY(_start)
 jiffies = jiffies_64;
 SECTIONS
 {
-  swapper_low_pmd_dir = 0x0000000000402000;
-  . = 0x4000;
-  .text 0x0000000000404000 :
-  {
-    _text = .;
-    TEXT_TEXT
-    SCHED_TEXT
-    LOCK_TEXT
-    KPROBES_TEXT
-    *(.gnu.warning)
-  } =0
-  _etext = .;
-  PROVIDE (etext = .);
+	swapper_low_pmd_dir = 0x0000000000402000;
+	. = 0x4000;
+	.text 0x0000000000404000 : {
+		_text = .;
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+		KPROBES_TEXT
+		*(.gnu.warning)
+	} = 0
+	_etext = .;
+	PROVIDE (etext = .);
 
-  RO_DATA(PAGE_SIZE)
+	RO_DATA(PAGE_SIZE)
+	.data : {
+		DATA_DATA
+		CONSTRUCTORS
+	}
+	.data1 : {
+		*(.data1)
+	}
+	. = ALIGN(64);
+	.data.cacheline_aligned : {
+		*(.data.cacheline_aligned)
+	}
+	. = ALIGN(64);
+	.data.read_mostly : {
+		*(.data.read_mostly)
+	}
+	_edata = .;
+	PROVIDE (edata = .);
+	.fixup : {
+		*(.fixup)
+	}
+	. = ALIGN(16);
+	__ex_table : {
+		__start___ex_table = .;
+		*(__ex_table)
+		__stop___ex_table = .;
+	}
+	NOTES
 
-  .data    :
-  {
-    DATA_DATA
-    CONSTRUCTORS
-  }
-  .data1   : { *(.data1) }
-  . = ALIGN(64);
-  .data.cacheline_aligned : { *(.data.cacheline_aligned) }
-  . = ALIGN(64);
-  .data.read_mostly : { *(.data.read_mostly) }
-  _edata  =  .;
-  PROVIDE (edata = .);
-  .fixup   : { *(.fixup) }
+	. = ALIGN(PAGE_SIZE);
+	.init.text : {
+		__init_begin = .;
+		_sinittext = .;
+		*(.init.text)
+		_einittext = .;
+	}
+	.init.data : {
+		*(.init.data)
+	}
+	. = ALIGN(16);
+	.init.setup : {
+		__setup_start = .;
+		*(.init.setup)
+		__setup_end = .;
+	}
+	.initcall.init : {
+		__initcall_start = .;
+		INITCALLS
+		__initcall_end = .;
+	}
+	.con_initcall.init : {
+		__con_initcall_start = .;
+		*(.con_initcall.init)
+		__con_initcall_end = .;
+	}
+	SECURITY_INIT
 
-  . = ALIGN(16);
-  __start___ex_table = .;
-  __ex_table : { *(__ex_table) }
-  __stop___ex_table = .;
+	. = ALIGN(4);
+	.tsb_ldquad_phys_patch : {
+		__tsb_ldquad_phys_patch = .;
+		*(.tsb_ldquad_phys_patch)
+		__tsb_ldquad_phys_patch_end = .;
+	}
 
-  NOTES
+	.tsb_phys_patch : {
+		__tsb_phys_patch = .;
+		*(.tsb_phys_patch)
+		__tsb_phys_patch_end = .;
+	}
 
-  . = ALIGN(PAGE_SIZE);
-  __init_begin = .;
-  .init.text : { 
-	_sinittext = .;
-	*(.init.text)
-	_einittext = .;
-  }
-  .init.data : { *(.init.data) }
-  . = ALIGN(16);
-  __setup_start = .;
-  .init.setup : { *(.init.setup) }
-  __setup_end = .;
-  __initcall_start = .;
-  .initcall.init : {
-	INITCALLS
-  }
-  __initcall_end = .;
-  __con_initcall_start = .;
-  .con_initcall.init : { *(.con_initcall.init) }
-  __con_initcall_end = .;
-  SECURITY_INIT
-  . = ALIGN(4);
-  __tsb_ldquad_phys_patch = .;
-  .tsb_ldquad_phys_patch : { *(.tsb_ldquad_phys_patch) }
-  __tsb_ldquad_phys_patch_end = .;
-  __tsb_phys_patch = .;
-  .tsb_phys_patch : { *(.tsb_phys_patch) }
-  __tsb_phys_patch_end = .;
-  __cpuid_patch = .;
-  .cpuid_patch : { *(.cpuid_patch) }
-  __cpuid_patch_end = .;
-  __sun4v_1insn_patch = .;
-  .sun4v_1insn_patch : { *(.sun4v_1insn_patch) }
-  __sun4v_1insn_patch_end = .;
-  __sun4v_2insn_patch = .;
-  .sun4v_2insn_patch : { *(.sun4v_2insn_patch) }
-  __sun4v_2insn_patch_end = .;
+	.cpuid_patch : {
+		__cpuid_patch = .;
+		*(.cpuid_patch)
+		__cpuid_patch_end = .;
+	}
+
+	.sun4v_1insn_patch : {
+		__sun4v_1insn_patch = .;
+		*(.sun4v_1insn_patch)
+		__sun4v_1insn_patch_end = .;
+	}
+	.sun4v_2insn_patch : {
+		__sun4v_2insn_patch = .;
+		*(.sun4v_2insn_patch)
+		__sun4v_2insn_patch_end = .;
+	}
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  . = ALIGN(PAGE_SIZE);
-  __initramfs_start = .;
-  .init.ramfs : { *(.init.ramfs) }
-  __initramfs_end = .;
+	. = ALIGN(PAGE_SIZE);
+	.init.ramfs : {
+		__initramfs_start = .;
+		*(.init.ramfs)
+		__initramfs_end = .;
+	}
 #endif
 
-  PERCPU(PAGE_SIZE)
+	PERCPU(PAGE_SIZE)
 
-  . = ALIGN(PAGE_SIZE);
-  __init_end = .;
-  __bss_start = .;
-  .sbss      : { *(.sbss) *(.scommon) }
-  .bss       :
-  {
-   *(.dynbss)
-   *(.bss)
-   *(COMMON)
-  }
-  _end = . ;
-  PROVIDE (end = .);
-  /DISCARD/ : { *(.exit.text) *(.exit.data) *(.exitcall.exit) }
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;
+	__bss_start = .;
+	.sbss : {
+		*(.sbss)
+		*(.scommon)
+	}
+	.bss : {
+		*(.dynbss)
+		*(.bss)
+		*(COMMON)
+	}
+	_end = . ;
+	PROVIDE (end = .);
 
-  STABS_DEBUG
+	/DISCARD/ : {
+		*(.exit.text)
+		*(.exit.data)
+		*(.exitcall.exit)
+	}
 
-  DWARF_DEBUG
+	STABS_DEBUG
+	DWARF_DEBUG
 }
diff --git a/arch/sparc64/lib/xor.S b/arch/sparc64/lib/xor.S
index a79c8888170..f44f58f4023 100644
--- a/arch/sparc64/lib/xor.S
+++ b/arch/sparc64/lib/xor.S
@@ -491,12 +491,12 @@ xor_niagara_4:		/* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */
 	ldda		[%i1 + 0x10] %asi, %i2	/* %i2/%i3 = src1 + 0x10 */
 	xor		%g2, %i4, %g2
 	xor		%g3, %i5, %g3
-	ldda		[%i7 + 0x10] %asi, %i4	/* %i4/%i5 = src2 + 0x10 */
+	ldda		[%l7 + 0x10] %asi, %i4	/* %i4/%i5 = src2 + 0x10 */
 	xor		%l0, %g2, %l0
 	xor		%l1, %g3, %l1
 	stxa		%l0, [%i0 + 0x00] %asi
 	stxa		%l1, [%i0 + 0x08] %asi
-	ldda		[%i6 + 0x10] %asi, %g2	/* %g2/%g3 = src3 + 0x10 */
+	ldda		[%l6 + 0x10] %asi, %g2	/* %g2/%g3 = src3 + 0x10 */
 	ldda		[%i0 + 0x10] %asi, %l0	/* %l0/%l1 = dest + 0x10 */
 
 	xor		%i4, %i2, %i4
@@ -504,12 +504,12 @@ xor_niagara_4:		/* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */
 	ldda		[%i1 + 0x20] %asi, %i2	/* %i2/%i3 = src1 + 0x20 */
 	xor		%g2, %i4, %g2
 	xor		%g3, %i5, %g3
-	ldda		[%i7 + 0x20] %asi, %i4	/* %i4/%i5 = src2 + 0x20 */
+	ldda		[%l7 + 0x20] %asi, %i4	/* %i4/%i5 = src2 + 0x20 */
 	xor		%l0, %g2, %l0
 	xor		%l1, %g3, %l1
 	stxa		%l0, [%i0 + 0x10] %asi
 	stxa		%l1, [%i0 + 0x18] %asi
-	ldda		[%i6 + 0x20] %asi, %g2	/* %g2/%g3 = src3 + 0x20 */
+	ldda		[%l6 + 0x20] %asi, %g2	/* %g2/%g3 = src3 + 0x20 */
 	ldda		[%i0 + 0x20] %asi, %l0	/* %l0/%l1 = dest + 0x20 */
 
 	xor		%i4, %i2, %i4
@@ -517,12 +517,12 @@ xor_niagara_4:		/* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */
 	ldda		[%i1 + 0x30] %asi, %i2	/* %i2/%i3 = src1 + 0x30 */
 	xor		%g2, %i4, %g2
 	xor		%g3, %i5, %g3
-	ldda		[%i7 + 0x30] %asi, %i4	/* %i4/%i5 = src2 + 0x30 */
+	ldda		[%l7 + 0x30] %asi, %i4	/* %i4/%i5 = src2 + 0x30 */
 	xor		%l0, %g2, %l0
 	xor		%l1, %g3, %l1
 	stxa		%l0, [%i0 + 0x20] %asi
 	stxa		%l1, [%i0 + 0x28] %asi
-	ldda		[%i6 + 0x30] %asi, %g2	/* %g2/%g3 = src3 + 0x30 */
+	ldda		[%l6 + 0x30] %asi, %g2	/* %g2/%g3 = src3 + 0x30 */
 	ldda		[%i0 + 0x30] %asi, %l0	/* %l0/%l1 = dest + 0x30 */
 
 	prefetch	[%i1 + 0x40], #one_read
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 3010227fe24..f0ab9aab308 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -631,7 +631,6 @@ void prom_world(int enter)
 	__asm__ __volatile__("flushw");
 }
 
-#ifdef DCACHE_ALIASING_POSSIBLE
 void __flush_dcache_range(unsigned long start, unsigned long end)
 {
 	unsigned long va;
@@ -655,7 +654,6 @@ void __flush_dcache_range(unsigned long start, unsigned long end)
 					       "i" (ASI_DCACHE_INVALIDATE));
 	}
 }
-#endif /* DCACHE_ALIASING_POSSIBLE */
 
 /* get_new_mmu_context() uses "cache + 1".  */
 DEFINE_SPINLOCK(ctx_alloc_lock);