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sparc32: always define boot_cpu_id

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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>
This commit is contained in:
Daniel Hellstrom
2011-04-21 04:20:23 +00:00
committed by David S. Miller
parent 1827237065
commit 5fcafb7a23
5 changed files with 35 additions and 14 deletions
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2
arch/sparc/kernel/smp_32.c
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@@ -37,8 +37,6 @@
#include "irq.h"
volatile unsigned long cpu_callin_map[NR_CPUS] __cpuinitdata = {0,};
unsigned char boot_cpu_id = 0;
unsigned char boot_cpu_id4 = 0; /* boot_cpu_id << 2 */
cpumask_t smp_commenced_mask = CPU_MASK_NONE;