Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Here are a few more fixes for powerpc.  Some are regressions, the rest
is simple/obvious/nasty enough that I deemed it good to go now.

Here's also step one of deprecating legacy iSeries support: we are
removing it from the main defconfig.

Nobody seems to be using it anymore and the code is nasty to maintain,
(involves horrible hacks in various low level areas of the kernel) so we
plan to actually rip it out at some point.  For now let's just avoid
building it by default.  Stephen will proceed to do the actual removal
later (probably 3.4 or 3.5).

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/perf: power_pmu_start restores incorrect values, breaking frequency events
  powerpc/adb: Use set_current_state()
  powerpc: Disable interrupts early in Program Check
  powerpc: Remove legacy iSeries from ppc64_defconfig
  powerpc/fsl/pci: Fix PCIe fixup regression
  powerpc: Fix kernel log of oops/panic instruction dump

diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 2156e077859b9bee6285bfb87677b72f64c77311..1acf65026773a6b6336d21e5b3b07f06bf6e84a7 100644 (file)
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -24,10 +24,6 @@ CONFIG_PPC_SPLPAR=y
 CONFIG_SCANLOG=m
 CONFIG_PPC_SMLPAR=y
 CONFIG_DTL=y
-CONFIG_PPC_ISERIES=y
-CONFIG_VIODASD=y
-CONFIG_VIOCD=m
-CONFIG_VIOTAPE=m
 CONFIG_PPC_MAPLE=y
 CONFIG_PPC_PASEMI=y
 CONFIG_PPC_PASEMI_IOMMU=y
@@ -259,7 +255,6 @@ CONFIG_PASEMI_MAC=y
 CONFIG_MLX4_EN=m
 CONFIG_QLGE=m
 CONFIG_BE2NET=m
-CONFIG_ISERIES_VETH=m
 CONFIG_PPP=m
 CONFIG_PPP_ASYNC=m
 CONFIG_PPP_SYNC_TTY=m

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index d4be7bb3dbdfdffd5d62d76aa96860392040a305..3844ca7c509924b82769703c2167278958d136cc 100644 (file)
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -775,7 +775,7 @@ program_check_common:
        EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
        bl      .save_nvgprs
        addi    r3,r1,STACK_FRAME_OVERHEAD
-       ENABLE_INTS
+       DISABLE_INTS
        bl      .program_check_exception
        b       .ret_from_except
 

diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index 10a140f82cb87db296859f57ce18edfbb10f2ace..64483fde95c62cfa0cc5411e2c2cc6fce5cab453 100644 (file)
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -865,6 +865,7 @@ static void power_pmu_start(struct perf_event *event, int ef_flags)
 {
        unsigned long flags;
        s64 left;
+       unsigned long val;
 
        if (!event->hw.idx || !event->hw.sample_period)
                return;
@@ -880,7 +881,12 @@ static void power_pmu_start(struct perf_event *event, int ef_flags)
 
        event->hw.state = 0;
        left = local64_read(&event->hw.period_left);
-       write_pmc(event->hw.idx, left);
+
+       val = 0;
+       if (left < 0x80000000L)
+               val = 0x80000000L - left;
+
+       write_pmc(event->hw.idx, val);
 
        perf_event_update_userpage(event);
        perf_pmu_enable(event->pmu);

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index ebe5766781aa8c9eca7d96849ca034233e043308..d817ab018486d71b8c06bb9b6275bd0f533d8c89 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -566,12 +566,12 @@ static void show_instructions(struct pt_regs *regs)
                 */
                if (!__kernel_text_address(pc) ||
                     __get_user(instr, (unsigned int __user *)pc)) {
-                       printk("XXXXXXXX ");
+                       printk(KERN_CONT "XXXXXXXX ");
                } else {
                        if (regs->nip == pc)
-                               printk("<%08x> ", instr);
+                               printk(KERN_CONT "<%08x> ", instr);
                        else
-                               printk("%08x ", instr);
+                               printk(KERN_CONT "%08x ", instr);
                }
 
                pc += sizeof(int);

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 30eb17ecad493f8d459beb2d6c60ed882c86a326..6073288fed29889399bb640bc22f709043363f72 100644 (file)
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -385,26 +385,36 @@ static void __init setup_pci_cmd(struct pci_controller *hose)
 void fsl_pcibios_fixup_bus(struct pci_bus *bus)
 {
        struct pci_controller *hose = pci_bus_to_host(bus);
-       int i;
-
-       if ((bus->parent == hose->bus) &&
-           ((fsl_pcie_bus_fixup &&
-             early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) ||
-            (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)))
-       {
-               for (i = 0; i < 4; ++i) {
+       int i, is_pcie = 0, no_link;
+
+       /* The root complex bridge comes up with bogus resources,
+        * we copy the PHB ones in.
+        *
+        * With the current generic PCI code, the PHB bus no longer
+        * has bus->resource[0..4] set, so things are a bit more
+        * tricky.
+        */
+
+       if (fsl_pcie_bus_fixup)
+               is_pcie = early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP);
+       no_link = !!(hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK);
+
+       if (bus->parent == hose->bus && (is_pcie || no_link)) {
+               for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; ++i) {
                        struct resource *res = bus->resource[i];
-                       struct resource *par = bus->parent->resource[i];
-                       if (res) {
-                               res->start = 0;
-                               res->end   = 0;
-                               res->flags = 0;
-                       }
-                       if (res && par) {
-                               res->start = par->start;
-                               res->end   = par->end;
-                               res->flags = par->flags;
-                       }
+                       struct resource *par;
+
+                       if (!res)
+                               continue;
+                       if (i == 0)
+                               par = &hose->io_resource;
+                       else if (i < 4)
+                               par = &hose->mem_resources[i-1];
+                       else par = NULL;
+
+                       res->start = par ? par->start : 0;
+                       res->end   = par ? par->end   : 0;
+                       res->flags = par ? par->flags : 0;
                }
        }
 }

diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 75049e765191eb6a75ec44b1670304785cba3a9e..b026896206ca4fb1ee66df1df93036dcc7b72f9b 100644 (file)
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -710,7 +710,7 @@ static ssize_t adb_read(struct file *file, char __user *buf,
        req = NULL;
        spin_lock_irqsave(&state->lock, flags);
        add_wait_queue(&state->wait_queue, &wait);
-       current->state = TASK_INTERRUPTIBLE;
+       set_current_state(TASK_INTERRUPTIBLE);
 
        for (;;) {
                req = state->completed;
@@ -734,7 +734,7 @@ static ssize_t adb_read(struct file *file, char __user *buf,
                spin_lock_irqsave(&state->lock, flags);
        }
 
-       current->state = TASK_RUNNING;
+       set_current_state(TASK_RUNNING);
        remove_wait_queue(&state->wait_queue, &wait);
        spin_unlock_irqrestore(&state->lock, flags);