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author | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 11:05:51 +0200 |
commit | accba5f3965d6a9d1bf7c1e1a7995d17e9d521b6 (patch) | |
tree | 8fb40782e79472ed882ff2098d4dd295557278ee /arch/blackfin/include/asm/l1layout.h | |
parent | 6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff) | |
parent | 4480f15b3306f43bbb0310d461142b4e897ca45b (diff) | |
download | linux-accba5f3965d6a9d1bf7c1e1a7995d17e9d521b6.tar.bz2 |
Merge branch 'linus' into oprofile-v2
Conflicts:
arch/x86/kernel/apic_32.c
arch/x86/oprofile/nmi_int.c
include/linux/pci_ids.h
Diffstat (limited to 'arch/blackfin/include/asm/l1layout.h')
-rw-r--r-- | arch/blackfin/include/asm/l1layout.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/l1layout.h b/arch/blackfin/include/asm/l1layout.h new file mode 100644 index 000000000000..c13ded777828 --- /dev/null +++ b/arch/blackfin/include/asm/l1layout.h @@ -0,0 +1,31 @@ +/* + * 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 |