8 files changed, 74 insertions, 37 deletions

diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index e722a4eeb5d0..4fe69ca24481 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -136,23 +136,6 @@ int sys_ipc(uint call, int first, unsigned long second, long third,
         return ret;
 }
 
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-int sys_pipe(int __user *fildes)
-{
-        int fd[2];
-        int error;
-
-        error = do_pipe(fd);
-        if (!error) {
-                if (copy_to_user(fildes, fd, 2*sizeof(int)))
-                        error = -EFAULT;
-        }
-        return error;
-}
-
 static inline unsigned long do_mmap2(unsigned long addr, size_t len,
                         unsigned long prot, unsigned long flags,
                         unsigned long fd, unsigned long off, int shift)
diff --git a/arch/powerpc/kvm/booke_guest.c b/arch/powerpc/kvm/booke_guest.c
index 6d9884a6884a..712d89a28c46 100644
--- a/arch/powerpc/kvm/booke_guest.c
+++ b/arch/powerpc/kvm/booke_guest.c
@@ -49,6 +49,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "inst_emu",   VCPU_STAT(emulated_inst_exits) },
         { "dec",        VCPU_STAT(dec_exits) },
         { "ext_intr",   VCPU_STAT(ext_intr_exits) },
+        { "halt_wakeup", VCPU_STAT(halt_wakeup) },
         { NULL }
 };
 
@@ -338,6 +339,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 }
                 break;
 
+        case BOOKE_INTERRUPT_FP_UNAVAIL:
+                kvmppc_queue_exception(vcpu, exit_nr);
+                r = RESUME_GUEST;
+                break;
+
         case BOOKE_INTERRUPT_DATA_STORAGE:
                 vcpu->arch.dear = vcpu->arch.fault_dear;
                 vcpu->arch.esr = vcpu->arch.fault_esr;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index bad40bd2d3ac..777e0f34e0ea 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -36,13 +36,12 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
 
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
 {
-        /* XXX implement me */
-        return 0;
+        return !!(v->arch.pending_exceptions);
 }
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
 {
-        return 1;
+        return !(v->arch.msr & MSR_WE);
 }
 
 
@@ -214,6 +213,11 @@ static void kvmppc_decrementer_func(unsigned long data)
         struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
 
         kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
+
+        if (waitqueue_active(&vcpu->wq)) {
+                wake_up_interruptible(&vcpu->wq);
+                vcpu->stat.halt_wakeup++;
+        }
 }
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
@@ -339,6 +343,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
         int r;
         sigset_t sigsaved;
 
+        vcpu_load(vcpu);
+
         if (vcpu->sigset_active)
                 sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
 
@@ -363,12 +369,20 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
         if (vcpu->sigset_active)
                 sigprocmask(SIG_SETMASK, &sigsaved, NULL);
 
+        vcpu_put(vcpu);
+
         return r;
 }
 
 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
 {
         kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
+
+        if (waitqueue_active(&vcpu->wq)) {
+                wake_up_interruptible(&vcpu->wq);
+                vcpu->stat.halt_wakeup++;
+        }
+
         return 0;
 }
 
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 4bb023f4c869..f1d2cdc5331b 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -23,3 +23,4 @@ obj-$(CONFIG_SMP)	+= locks.o
 endif
 
 obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o
+obj-$(CONFIG_HAS_IOMEM) += devres.o
diff --git a/arch/powerpc/lib/devres.c b/arch/powerpc/lib/devres.c
new file mode 100644
index 000000000000..292115d98ea9
--- /dev/null
+++ b/arch/powerpc/lib/devres.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/device.h>       /* devres_*(), devm_ioremap_release() */
+#include <linux/io.h>           /* ioremap_flags() */
+#include <linux/module.h>       /* EXPORT_SYMBOL() */
+
+/**
+ * devm_ioremap_prot - Managed ioremap_flags()
+ * @dev: Generic device to remap IO address for
+ * @offset: BUS offset to map
+ * @size: Size of map
+ * @flags: Page flags
+ *
+ * Managed ioremap_prot().  Map is automatically unmapped on driver
+ * detach.
+ */
+void __iomem *devm_ioremap_prot(struct device *dev, resource_size_t offset,
+                                 size_t size, unsigned long flags)
+{
+        void __iomem **ptr, *addr;
+
+        ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL);
+        if (!ptr)
+                return NULL;
+
+        addr = ioremap_flags(offset, size, flags);
+        if (addr) {
+                *ptr = addr;
+                devres_add(dev, ptr);
+        } else
+                devres_free(ptr);
+
+        return addr;
+}
+EXPORT_SYMBOL(devm_ioremap_prot);
diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c
index 5bcc58d9a4dd..130ff72d99dd 100644
--- a/arch/powerpc/platforms/chrp/pegasos_eth.c
+++ b/arch/powerpc/platforms/chrp/pegasos_eth.c
@@ -58,7 +58,9 @@ static struct resource mv643xx_eth0_resources[] = {
 
 
 static struct mv643xx_eth_platform_data eth0_pd = {
+        .shared         = &mv643xx_eth_shared_device,
         .port_number    = 0,
+
         .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH0,
         .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
         .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
@@ -88,7 +90,9 @@ static struct resource mv643xx_eth1_resources[] = {
 };
 
 static struct mv643xx_eth_platform_data eth1_pd = {
+        .shared         = &mv643xx_eth_shared_device,
         .port_number    = 1,
+
         .tx_sram_addr = PEGASOS2_SRAM_BASE_ETH1,
         .tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
         .tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index bec3803f0618..417eca79df69 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -55,11 +55,6 @@ static ssize_t scanlog_read(struct file *file, char __user *buf,
         dp = PDE(inode);
         data = (unsigned int *)dp->data;
 
-        if (!data) {
-                printk(KERN_ERR "scanlog: read failed no data\n");
-                return -EIO;
-        }
-
         if (count > RTAS_DATA_BUF_SIZE)
                 count = RTAS_DATA_BUF_SIZE;
 
@@ -146,11 +141,6 @@ static int scanlog_open(struct inode * inode, struct file * file)
         struct proc_dir_entry *dp = PDE(inode);
         unsigned int *data = (unsigned int *)dp->data;
 
-        if (!data) {
-                printk(KERN_ERR "scanlog: open failed no data\n");
-                return -EIO;
-        }
-
         if (data[0] != 0) {
                 /* This imperfect test stops a second copy of the
                  * data (or a reset while data is being copied)
@@ -168,10 +158,6 @@ static int scanlog_release(struct inode * inode, struct file * file)
         struct proc_dir_entry *dp = PDE(inode);
         unsigned int *data = (unsigned int *)dp->data;
 
-        if (!data) {
-                printk(KERN_ERR "scanlog: release failed no data\n");
-                return -EIO;
-        }
         data[0] = 0;
 
         return 0;
@@ -200,12 +186,11 @@ static int __init scanlog_init(void)
         if (!data)
                 goto err;
 
-        ent = proc_create("ppc64/rtas/scan-log-dump", S_IRUSR, NULL,
-                          &scanlog_fops);
+        ent = proc_create_data("ppc64/rtas/scan-log-dump", S_IRUSR, NULL,
+                               &scanlog_fops, data);
         if (!ent)
                 goto err;
 
-        ent->data = data;
         proc_ppc64_scan_log_dump = ent;
 
         return 0;
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 41af1223e2a0..a132e0de8ca5 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -239,6 +239,8 @@ static int __init mv64x60_eth_device_setup(struct device_node *np, int id,
 
         memset(&pdata, 0, sizeof(pdata));
 
+        pdata.shared = shared_pdev;
+
         prop = of_get_property(np, "reg", NULL);
         if (!prop)
                 return -ENODEV;