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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mm/proc-macros.S | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/mm/proc-macros.S')
-rw-r--r-- | arch/arm/mm/proc-macros.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S new file mode 100644 index 000000000000..9137fe563599 --- /dev/null +++ b/arch/arm/mm/proc-macros.S @@ -0,0 +1,51 @@ +/* + * We need constants.h for: + * VMA_VM_MM + * VMA_VM_FLAGS + * VM_EXEC + */ +#include <asm/constants.h> +#include <asm/thread_info.h> + +/* + * vma_vm_mm - get mm pointer from vma pointer (vma->vm_mm) + */ + .macro vma_vm_mm, rd, rn + ldr \rd, [\rn, #VMA_VM_MM] + .endm + +/* + * vma_vm_flags - get vma->vm_flags + */ + .macro vma_vm_flags, rd, rn + ldr \rd, [\rn, #VMA_VM_FLAGS] + .endm + + .macro tsk_mm, rd, rn + ldr \rd, [\rn, #TI_TASK] + ldr \rd, [\rd, #TSK_ACTIVE_MM] + .endm + +/* + * act_mm - get current->active_mm + */ + .macro act_mm, rd + bic \rd, sp, #8128 + bic \rd, \rd, #63 + ldr \rd, [\rd, #TI_TASK] + ldr \rd, [\rd, #TSK_ACTIVE_MM] + .endm + +/* + * mmid - get context id from mm pointer (mm->context.id) + */ + .macro mmid, rd, rn + ldr \rd, [\rn, #MM_CONTEXT_ID] + .endm + +/* + * mask_asid - mask the ASID from the context ID + */ + .macro asid, rd, rn + and \rd, \rn, #255 + .endm |