2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 13:43:55 +08:00
linux-next/arch/sparc/include/asm/setup.h
Daniel Hellstrom 5fcafb7a23 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>
2011-04-21 16:44:44 -07:00

27 lines
462 B
C

/*
* Just a place holder.
*/
#ifndef _SPARC_SETUP_H
#define _SPARC_SETUP_H
#if defined(__sparc__) && defined(__arch64__)
# define COMMAND_LINE_SIZE 2048
#else
# define COMMAND_LINE_SIZE 256
#endif
#ifdef __KERNEL__
#ifdef CONFIG_SPARC32
/* The CPU that was used for booting
* Only sun4d + leon may have boot_cpu_id != 0
*/
extern unsigned char boot_cpu_id;
extern unsigned char boot_cpu_id4;
#endif
#endif /* __KERNEL__ */
#endif /* _SPARC_SETUP_H */