diff options
| -rw-r--r-- | arch/ppc64/kernel/ItLpQueue.c | 22 | ||||
| -rw-r--r-- | arch/ppc64/kernel/iSeries_setup.c | 21 | ||||
| -rw-r--r-- | include/asm-ppc64/iSeries/ItLpQueue.h | 1 |
3 files changed, 24 insertions, 20 deletions
diff --git a/arch/ppc64/kernel/ItLpQueue.c b/arch/ppc64/kernel/ItLpQueue.c index 35f6deac0b99..091aaed4842c 100644 --- a/arch/ppc64/kernel/ItLpQueue.c +++ b/arch/ppc64/kernel/ItLpQueue.c @@ -11,6 +11,7 @@ #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/bootmem.h> #include <asm/system.h> #include <asm/paca.h> #include <asm/iSeries/ItLpQueue.h> @@ -186,3 +187,24 @@ static int set_spread_lpevents(char *str) } __setup("spread_lpevents=", set_spread_lpevents); +void setup_hvlpevent_queue(void) +{ + void *eventStack; + + /* + * Allocate a page for the Event Stack. The Hypervisor needs the + * absolute real address, so we subtract out the KERNELBASE and add + * in the absolute real address of the kernel load area. + */ + eventStack = alloc_bootmem_pages(LpEventStackSize); + memset(eventStack, 0, LpEventStackSize); + + /* Invoke the hypervisor to initialize the event stack */ + HvCallEvent_setLpEventStack(0, eventStack, LpEventStackSize); + + xItLpQueue.xSlicEventStackPtr = (char *)eventStack; + xItLpQueue.xSlicCurEventPtr = (char *)eventStack; + xItLpQueue.xSlicLastValidEventPtr = (char *)eventStack + + (LpEventStackSize - LpEventMaxSize); + xItLpQueue.xIndex = 0; +} diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c index 78f283560252..b3f770f6d402 100644 --- a/arch/ppc64/kernel/iSeries_setup.c +++ b/arch/ppc64/kernel/iSeries_setup.c @@ -24,7 +24,6 @@ #include <linux/smp.h> #include <linux/param.h> #include <linux/string.h> -#include <linux/bootmem.h> #include <linux/initrd.h> #include <linux/seq_file.h> #include <linux/kdev_t.h> @@ -676,7 +675,6 @@ static void __init iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr) */ static void __init iSeries_setup_arch(void) { - void *eventStack; unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index; /* Add an eye catcher and the systemcfg layout version number */ @@ -685,24 +683,7 @@ static void __init iSeries_setup_arch(void) systemcfg->version.minor = SYSTEMCFG_MINOR; /* Setup the Lp Event Queue */ - - /* Allocate a page for the Event Stack - * The hypervisor wants the absolute real address, so - * we subtract out the KERNELBASE and add in the - * absolute real address of the kernel load area - */ - eventStack = alloc_bootmem_pages(LpEventStackSize); - memset(eventStack, 0, LpEventStackSize); - - /* Invoke the hypervisor to initialize the event stack */ - HvCallEvent_setLpEventStack(0, eventStack, LpEventStackSize); - - /* Initialize fields in our Lp Event Queue */ - xItLpQueue.xSlicEventStackPtr = (char *)eventStack; - xItLpQueue.xSlicCurEventPtr = (char *)eventStack; - xItLpQueue.xSlicLastValidEventPtr = (char *)eventStack + - (LpEventStackSize - LpEventMaxSize); - xItLpQueue.xIndex = 0; + setup_hvlpevent_queue(); /* Compute processor frequency */ procFreqHz = ((1UL << 34) * 1000000) / diff --git a/include/asm-ppc64/iSeries/ItLpQueue.h b/include/asm-ppc64/iSeries/ItLpQueue.h index 832497e3259b..de90feedbe12 100644 --- a/include/asm-ppc64/iSeries/ItLpQueue.h +++ b/include/asm-ppc64/iSeries/ItLpQueue.h @@ -80,5 +80,6 @@ extern struct HvLpEvent *ItLpQueue_getNextLpEvent(void); extern int ItLpQueue_isLpIntPending(void); extern unsigned ItLpQueue_process(struct pt_regs *); extern void ItLpQueue_clearValid(struct HvLpEvent *); +extern void setup_hvlpevent_queue(void); #endif /* _ITLPQUEUE_H */ |