sparc64: Fix overshoot in nid_range().

[linux-2.6-omap-h63xx.git] / arch / sparc64 / mm / init.c

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 4e821b3ecb039faa71991809c0d4139354ee2a8d..64d8e7623e0d52eb00cca50a242ec6b023d2a818 100644 (file)
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -49,6 +49,7 @@
 #include <asm/sstate.h>
 #include <asm/mdesc.h>
 #include <asm/cpudata.h>
+#include <asm/irq.h>
 
 #define MAX_PHYS_ADDRESS       (1UL << 42UL)
 #define KPTE_BITMAP_CHUNK_SZ   (256UL * 1024UL * 1024UL)
@@ -795,6 +796,9 @@ static unsigned long nid_range(unsigned long start, unsigned long end,
                start += PAGE_SIZE;
        }
 
+       if (start > end)
+               start = end;
+
        return start;
 }
 #else
@@ -1771,6 +1775,16 @@ void __init paging_init(void)
        if (tlb_type == hypervisor)
                sun4v_mdesc_init();
 
+       /* Once the OF device tree and MDESC have been setup, we know
+        * the list of possible cpus.  Therefore we can allocate the
+        * IRQ stacks.
+        */
+       for_each_possible_cpu(i) {
+               /* XXX Use node local allocations... XXX */
+               softirq_stack[i] = __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+               hardirq_stack[i] = __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+       }
+
        /* Setup bootmem... */
        last_valid_pfn = end_pfn = bootmem_init(phys_base);