diff options
| author | David S. Miller <davem@davemloft.net> | 2008-08-12 18:33:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-12 18:33:56 -0700 |
| commit | 4f70f7a91bffdcc39f088748dc678953eb9a3fbd (patch) | |
| tree | 934591a9518fbed87c14b758a1744cc30c9dfbb8 /arch/sparc64/mm | |
| parent | e34456825de0d3ac4c4e8fe0bdc6b599404ea06f (diff) | |
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.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 4e821b3ecb0..217de3ea29e 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); |