8 files changed, 19 insertions, 28 deletions

diff --git a/arch/ppc64/kernel/ItLpQueue.c b/arch/ppc64/kernel/ItLpQueue.c
index cdea00d7707f..e90dca8bd136 100644
--- a/arch/ppc64/kernel/ItLpQueue.c
+++ b/arch/ppc64/kernel/ItLpQueue.c
@@ -69,15 +69,17 @@ struct HvLpEvent * ItLpQueue_getNextLpEvent( struct ItLpQueue * lpQueue )
         return nextLpEvent;
 }
 
+unsigned long spread_lpevents = 1;
+
 int ItLpQueue_isLpIntPending( struct ItLpQueue * lpQueue )
 {
-        int retval = 0;
-        struct HvLpEvent * nextLpEvent;
-        if ( lpQueue ) {
-                nextLpEvent = (struct HvLpEvent *)lpQueue->xSlicCurEventPtr;
-                retval = nextLpEvent->xFlags.xValid | lpQueue->xPlicOverflowIntPending;
-        }
-        return retval;
+        struct HvLpEvent *next_event;
+
+        if (smp_processor_id() >= spread_lpevents)
+                return 0;
+
+        next_event = (struct HvLpEvent *)lpQueue->xSlicCurEventPtr;
+        return next_event->xFlags.xValid | lpQueue->xPlicOverflowIntPending;
 }
 
 void ItLpQueue_clearValid( struct HvLpEvent * event )
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
index 86966ce76b58..2049b6dbafc7 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -855,17 +855,15 @@ late_initcall(iSeries_src_init);
 
 static int set_spread_lpevents(char *str)
 {
-        unsigned long i;
         unsigned long val = simple_strtoul(str, NULL, 0);
+        extern unsigned long spread_lpevents;
 
         /*
          * The parameter is the number of processors to share in processing
          * lp events.
          */
         if (( val > 0) && (val <= NR_CPUS)) {
-                for (i = 1; i < val; ++i)
-                        paca[i].lpqueue_ptr = paca[0].lpqueue_ptr;
-
+                spread_lpevents = val;
                 printk("lpevent processing spread over %ld processors\n", val);
         } else {
                 printk("invalid spread_lpevents %ld\n", val);
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index bdf13b4dc1c8..63977a7a3094 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -88,7 +88,7 @@ static int iSeries_idle(void)
 
         while (1) {
                 if (lpaca->lppaca.shared_proc) {
-                        if (ItLpQueue_isLpIntPending(lpaca->lpqueue_ptr))
+                        if (ItLpQueue_isLpIntPending(&xItLpQueue))
                                 process_iSeries_events();
                         if (!need_resched())
                                 yield_shared_processor();
@@ -100,7 +100,7 @@ static int iSeries_idle(void)
 
                                 while (!need_resched()) {
                                         HMT_medium();
-                                        if (ItLpQueue_isLpIntPending(lpaca->lpqueue_ptr))
+                                        if (ItLpQueue_isLpIntPending(&xItLpQueue))
                                                 process_iSeries_events();
                                         HMT_low();
                                 }
diff --git a/arch/ppc64/kernel/irq.c b/arch/ppc64/kernel/irq.c
index 3defc8c33adf..b1e6acb02a9a 100644
--- a/arch/ppc64/kernel/irq.c
+++ b/arch/ppc64/kernel/irq.c
@@ -269,7 +269,6 @@ out:
 void do_IRQ(struct pt_regs *regs)
 {
         struct paca_struct *lpaca;
-        struct ItLpQueue *lpq;
 
         irq_enter();
 
@@ -295,9 +294,8 @@ void do_IRQ(struct pt_regs *regs)
                 iSeries_smp_message_recv(regs);
         }
 #endif /* CONFIG_SMP */
-        lpq = lpaca->lpqueue_ptr;
-        if (lpq && ItLpQueue_isLpIntPending(lpq))
-                lpevent_count += ItLpQueue_process(lpq, regs);
+        if (ItLpQueue_isLpIntPending(&xItLpQueue))
+                lpevent_count += ItLpQueue_process(&xItLpQueue, regs);
 
         irq_exit();
 
diff --git a/arch/ppc64/kernel/mf.c b/arch/ppc64/kernel/mf.c
index d98bebf7042f..d6a297a4feb3 100644
--- a/arch/ppc64/kernel/mf.c
+++ b/arch/ppc64/kernel/mf.c
@@ -802,9 +802,8 @@ int mf_get_boot_rtc(struct rtc_time *tm)
         /* We need to poll here as we are not yet taking interrupts */
         while (rtc_data.busy) {
                 extern unsigned long lpevent_count;
-                struct ItLpQueue *lpq = get_paca()->lpqueue_ptr;
-                if (lpq && ItLpQueue_isLpIntPending(lpq))
-                        lpevent_count += ItLpQueue_process(lpq, NULL);
+                if (ItLpQueue_isLpIntPending(&xItLpQueue))
+                        lpevent_count += ItLpQueue_process(&xItLpQueue, NULL);
         }
         return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm);
 }
diff --git a/arch/ppc64/kernel/pacaData.c b/arch/ppc64/kernel/pacaData.c
index a3e0975c26c1..ebfb517019ef 100644
--- a/arch/ppc64/kernel/pacaData.c
+++ b/arch/ppc64/kernel/pacaData.c
@@ -45,7 +45,6 @@ extern unsigned long __toc_start;
 #ifdef CONFIG_PPC_ISERIES
 #define EXTRA_INITS(number, lpq)                                            \
         .lppaca_ptr = &paca[number].lppaca,                                 \
-        .lpqueue_ptr = (lpq),           /* &xItLpQueue, */                  \
         .reg_save_ptr = &paca[number].reg_save,                             \
         .reg_save = {                                                       \
                 .xDesc = 0xd397d9e2,    /* "LpRS" */                        \
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 2a532db9138a..cdc43afb563e 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -367,11 +367,8 @@ int timer_interrupt(struct pt_regs * regs)
         set_dec(next_dec);
 
 #ifdef CONFIG_PPC_ISERIES
-        {
-                struct ItLpQueue *lpq = lpaca->lpqueue_ptr;
-                if (lpq && ItLpQueue_isLpIntPending(lpq))
-                        lpevent_count += ItLpQueue_process(lpq, regs);
-        }
+        if (ItLpQueue_isLpIntPending(&xItLpQueue))
+                lpevent_count += ItLpQueue_process(&xItLpQueue, regs);
 #endif
 
 /* collect purr register values often, for accurate calculations */
diff --git a/include/asm-ppc64/paca.h b/include/asm-ppc64/paca.h
index ae76cae1483f..0146f51684e9 100644
--- a/include/asm-ppc64/paca.h
+++ b/include/asm-ppc64/paca.h
@@ -20,7 +20,6 @@
 #include        <asm/types.h>
 #include        <asm/lppaca.h>
 #include        <asm/iSeries/ItLpRegSave.h>
-#include        <asm/iSeries/ItLpQueue.h>
 #include        <asm/mmu.h>
 
 register struct paca_struct *local_paca asm("r13");
@@ -62,7 +61,6 @@ struct paca_struct {
         u16 paca_index;                 /* Logical processor number */
 
         u32 default_decr;               /* Default decrementer value */
-        struct ItLpQueue *lpqueue_ptr;  /* LpQueue handled by this CPU */
         u64 kernel_toc;                 /* Kernel TOC address */
         u64 stab_real;                  /* Absolute address of segment table */
         u64 stab_addr;                  /* Virtual address of segment table */