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| File: [Development] / linux-2.6-xfs / arch / blackfin / include / asm / l1layout.h (download)
Revision 1.1, Fri Oct 3 17:46:45 2008 UTC (9 years ago) by lachlan.longdrop.melbourne.sgi.com
Merge up to 2.6.27-rc8 Merge of 2.6.x-xfs-melb:linux:32254b by kenmcd. |
/*
* l1layout.h
* Defines a layout of L1 scratchpad memory that userspace can rely on.
*/
#ifndef _L1LAYOUT_H_
#define _L1LAYOUT_H_
#include <asm/blackfin.h>
#ifndef __ASSEMBLY__
/* Data that is "mapped" into the process VM at the start of the L1 scratch
memory, so that each process can access it at a fixed address. Used for
stack checking. */
struct l1_scratch_task_info
{
/* Points to the start of the stack. */
void *stack_start;
/* Not updated by the kernel; a user process can modify this to
keep track of the lowest address of the stack pointer during its
runtime. */
void *lowest_sp;
};
/* A pointer to the structure in memory. */
#define L1_SCRATCH_TASK_INFO ((struct l1_scratch_task_info *)L1_SCRATCH_START)
#endif
#endif