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| author |   Daniel Hellstrom <daniel@gaisler.com> | 2011-04-21 04:20:23 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-04-21 16:44:44 -0700 |
| commit | 5fcafb7a23e35b2f1a5243f4dd536240f52c8ceb (patch) | |
| tree | f3967b2d935e2e492d55ec80d69c3437750cdde0 /arch/sparc/kernel/sun4d_irq.c | |
| parent | sparc32: removed unused code, implemented by generic code (diff) | |
| download | linux-dev-5fcafb7a23e35b2f1a5243f4dd536240f52c8ceb.tar.xz linux-dev-5fcafb7a23e35b2f1a5243f4dd536240f52c8ceb.zip | |
sparc32: always define boot_cpu_id
Define boot_cpu_id in single-processor kernels as well. This is
to support architectures which can boot on other than CPU0.
Sam Ravnborg has written the cleanup parts by extracting
boot_cpu_id from smp_32.c into setup_32.c and cleaned up
sun4d_irq.c.
boot_cpu_id was initialized before BSS was cleared in
sun4c_continue_boot, instead boot_cpu_id is set to 0xff to
avoid BSS. If boot_cpu_id is untouched (0xff) by bootup code
it will be overwritten to 0. boot_cpu_id4 is automatically
calculated in common code.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | arch/sparc/kernel/sun4d_irq.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index 14a043531dcb..b830914e32d3 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -14,6 +14,7 @@ #include <asm/io.h> #include <asm/sbi.h> #include <asm/cacheflush.h> +#include <asm/setup.h> #include "kernel.h" #include "irq.h" @@ -438,11 +439,9 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) void __init sun4d_init_sbi_irq(void) { struct device_node *dp; - int target_cpu = 0; + int target_cpu; -#ifdef CONFIG_SMP target_cpu = boot_cpu_id; -#endif for_each_node_by_name(dp, "sbi") { int devid = of_getintprop_default(dp, "device-id", 0); int board = of_getintprop_default(dp, "board#", 0); |