From 512d31d6a824a961f39b418f11480f678320e4f3 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 30 Jun 2005 15:08:27 +1000 Subject: [PATCH] ppc64: Move initialisation of xItLpQueue into ItLpQueue.c The xItLpQueue is initalised manually in iSeries_setup_arch(). Move this code into ItLpQueue.c for a cleaner separation. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/ppc64/kernel/ItLpQueue.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/ppc64/kernel/ItLpQueue.c') diff --git a/arch/ppc64/kernel/ItLpQueue.c b/arch/ppc64/kernel/ItLpQueue.c index 35f6deac0b9..091aaed4842 100644 --- a/arch/ppc64/kernel/ItLpQueue.c +++ b/arch/ppc64/kernel/ItLpQueue.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include @@ -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; +} -- cgit v1.2.3-70-g09d2