52 lines
860 B
ArmAsm
52 lines
860 B
ArmAsm
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/*
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* We need constants.h for:
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* VMA_VM_MM
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* VMA_VM_FLAGS
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* VM_EXEC
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*/
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#include <asm/constants.h>
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#include <asm/thread_info.h>
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/*
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* vma_vm_mm - get mm pointer from vma pointer (vma->vm_mm)
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*/
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.macro vma_vm_mm, rd, rn
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ldr \rd, [\rn, #VMA_VM_MM]
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.endm
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/*
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* vma_vm_flags - get vma->vm_flags
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*/
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.macro vma_vm_flags, rd, rn
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ldr \rd, [\rn, #VMA_VM_FLAGS]
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.endm
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.macro tsk_mm, rd, rn
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ldr \rd, [\rn, #TI_TASK]
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ldr \rd, [\rd, #TSK_ACTIVE_MM]
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.endm
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/*
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* act_mm - get current->active_mm
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*/
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.macro act_mm, rd
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bic \rd, sp, #8128
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bic \rd, \rd, #63
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ldr \rd, [\rd, #TI_TASK]
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ldr \rd, [\rd, #TSK_ACTIVE_MM]
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.endm
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/*
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* mmid - get context id from mm pointer (mm->context.id)
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*/
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.macro mmid, rd, rn
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ldr \rd, [\rn, #MM_CONTEXT_ID]
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.endm
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/*
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* mask_asid - mask the ASID from the context ID
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*/
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.macro asid, rd, rn
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and \rd, \rn, #255
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.endm
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