144 lines
3.0 KiB
C
144 lines
3.0 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_SCORE_TLBFLUSH_H
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#define _ASM_SCORE_TLBFLUSH_H
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#include <linux/mm.h>
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/*
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* TLB flushing:
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*
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* - flush_tlb_all() flushes all processes TLB entries
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* - flush_tlb_mm(mm) flushes the specified mm context TLB entries
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* - flush_tlb_page(vma, vmaddr) flushes one page
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* - flush_tlb_range(vma, start, end) flushes a range of pages
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* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
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*/
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extern void local_flush_tlb_all(void);
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extern void local_flush_tlb_mm(struct mm_struct *mm);
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extern void local_flush_tlb_range(struct vm_area_struct *vma,
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unsigned long start, unsigned long end);
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extern void local_flush_tlb_kernel_range(unsigned long start,
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unsigned long end);
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extern void local_flush_tlb_page(struct vm_area_struct *vma,
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unsigned long page);
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extern void local_flush_tlb_one(unsigned long vaddr);
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#define flush_tlb_all() local_flush_tlb_all()
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#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
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#define flush_tlb_range(vma, vmaddr, end) \
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local_flush_tlb_range(vma, vmaddr, end)
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#define flush_tlb_kernel_range(vmaddr, end) \
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local_flush_tlb_kernel_range(vmaddr, end)
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#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
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#define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
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#ifndef __ASSEMBLY__
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static inline unsigned long pevn_get(void)
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{
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unsigned long val;
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__asm__ __volatile__(
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"mfcr %0, cr11\n"
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"nop\nnop\n"
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: "=r" (val));
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return val;
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}
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static inline void pevn_set(unsigned long val)
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{
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__asm__ __volatile__(
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"mtcr %0, cr11\n"
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"nop\nnop\nnop\nnop\nnop\n"
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: : "r" (val));
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}
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static inline void pectx_set(unsigned long val)
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{
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__asm__ __volatile__(
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"mtcr %0, cr12\n"
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"nop\nnop\nnop\nnop\nnop\n"
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: : "r" (val));
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}
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static inline unsigned long pectx_get(void)
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{
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unsigned long val;
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__asm__ __volatile__(
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"mfcr %0, cr12\n"
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"nop\nnop\n"
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: "=r" (val));
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return val;
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}
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static inline unsigned long tlblock_get(void)
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{
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unsigned long val;
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__asm__ __volatile__(
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"mfcr %0, cr7\n"
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"nop\nnop\n"
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: "=r" (val));
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return val;
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}
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static inline void tlblock_set(unsigned long val)
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{
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__asm__ __volatile__(
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"mtcr %0, cr7\n"
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"nop\nnop\nnop\nnop\nnop\n"
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: : "r" (val));
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}
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static inline void tlbpt_set(unsigned long val)
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{
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__asm__ __volatile__(
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"mtcr %0, cr8\n"
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"nop\nnop\nnop\nnop\nnop\n"
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: : "r" (val));
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}
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static inline long tlbpt_get(void)
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{
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long val;
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__asm__ __volatile__(
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"mfcr %0, cr8\n"
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"nop\nnop\n"
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: "=r" (val));
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return val;
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}
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static inline void peaddr_set(unsigned long val)
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{
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__asm__ __volatile__(
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"mtcr %0, cr9\n"
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"nop\nnop\nnop\nnop\nnop\n"
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: : "r" (val));
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}
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/* TLB operations. */
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static inline void tlb_probe(void)
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{
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__asm__ __volatile__("stlb;nop;nop;nop;nop;nop");
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}
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static inline void tlb_read(void)
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{
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__asm__ __volatile__("mftlb;nop;nop;nop;nop;nop");
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}
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static inline void tlb_write_indexed(void)
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{
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__asm__ __volatile__("mtptlb;nop;nop;nop;nop;nop");
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}
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static inline void tlb_write_random(void)
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{
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__asm__ __volatile__("mtrtlb;nop;nop;nop;nop;nop");
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}
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#endif /* Not __ASSEMBLY__ */
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#endif /* _ASM_SCORE_TLBFLUSH_H */
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