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authorDavid S. Miller <davem@davemloft.net>2008-08-12 18:33:56 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-12 18:33:56 -0700
commit4f70f7a91bffdcc39f088748dc678953eb9a3fbd (patch)
tree934591a9518fbed87c14b758a1744cc30c9dfbb8 /arch/sparc64/mm
parente34456825de0d3ac4c4e8fe0bdc6b599404ea06f (diff)
downloadop-kernel-dev-4f70f7a91bffdcc39f088748dc678953eb9a3fbd.zip
op-kernel-dev-4f70f7a91bffdcc39f088748dc678953eb9a3fbd.tar.gz
sparc64: Implement IRQ stacks.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/mm')
-rw-r--r--arch/sparc64/mm/init.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 4e821b3..217de3e 100644
--- 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)
@@ -1771,6 +1772,16 @@ 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);
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