4 files changed, 11 insertions, 9 deletions

diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 2a27b275ab09..9ff033d261ab 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -22,13 +22,14 @@ unsigned long profile_pc(struct pt_regs *);
 
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {
-        return regs->gr[20];
+        return regs->gr[28];
 }
 
 static inline void instruction_pointer_set(struct pt_regs *regs,
                                                 unsigned long val)
 {
-        regs->iaoq[0] = val;
+        regs->iaoq[0] = val;
+        regs->iaoq[1] = val + 4;
 }
 
 /* Query offset/name of register from its name/offset */
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index eb39e7e380d7..841db71958cd 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -210,12 +210,6 @@ void __cpuidle arch_cpu_idle(void)
 
 static int __init parisc_idle_init(void)
 {
-        const char *marker;
-
-        /* check QEMU/SeaBIOS marker in PAGE0 */
-        marker = (char *) &PAGE0->pad0;
-        running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0);
-
         if (!running_on_qemu)
                 cpu_idle_poll_ctrl(1);
 
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 15dd9e21be7e..d908058d05c1 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -397,6 +397,9 @@ void __init start_parisc(void)
         int ret, cpunum;
         struct pdc_coproc_cfg coproc_cfg;
 
+        /* check QEMU/SeaBIOS marker in PAGE0 */
+        running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0);
+
         cpunum = smp_processor_id();
 
         init_cpu_topology();
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 1be571c20062..6bad04cbb1d3 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -157,8 +157,12 @@
 #define DBG_IRT(x...)
 #endif
 
+#ifdef CONFIG_64BIT
+#define COMPARE_IRTE_ADDR(irte, hpa)    ((irte)->dest_iosapic_addr == (hpa))
+#else
 #define COMPARE_IRTE_ADDR(irte, hpa)    \
-                ((irte)->dest_iosapic_addr == F_EXTEND(hpa))
+                ((irte)->dest_iosapic_addr == ((hpa) | 0xffffffff00000000ULL))
+#endif
 
 #define IOSAPIC_REG_SELECT              0x00
 #define IOSAPIC_REG_WINDOW              0x10