summaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/tlbflush.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/include/asm/tlbflush.h')
-rw-r--r--arch/mips/include/asm/tlbflush.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/mips/include/asm/tlbflush.h b/arch/mips/include/asm/tlbflush.h
new file mode 100644
index 0000000000..9789e7a32d
--- /dev/null
+++ b/arch/mips/include/asm/tlbflush.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_TLBFLUSH_H
+#define __ASM_TLBFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * TLB flushing:
+ *
+ * - flush_tlb_all() flushes all processes TLB entries
+ * - flush_tlb_mm(mm) flushes the specified mm context TLB entries
+ * - flush_tlb_page(vma, vmaddr) flushes one page
+ * - flush_tlb_range(vma, start, end) flushes a range of pages
+ * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ */
+extern void local_flush_tlb_all(void);
+extern void local_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+extern void local_flush_tlb_kernel_range(unsigned long start,
+ unsigned long end);
+extern void local_flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long page);
+extern void local_flush_tlb_one(unsigned long vaddr);
+
+#include <asm/mmu_context.h>
+
+#ifdef CONFIG_SMP
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long,
+ unsigned long);
+extern void flush_tlb_kernel_range(unsigned long, unsigned long);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void flush_tlb_one(unsigned long vaddr);
+
+#else /* CONFIG_SMP */
+
+#define flush_tlb_all() local_flush_tlb_all()
+#define flush_tlb_mm(mm) drop_mmu_context(mm)
+#define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, end)
+#define flush_tlb_kernel_range(vmaddr,end) \
+ local_flush_tlb_kernel_range(vmaddr, end)
+#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
+#define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
+
+#endif /* CONFIG_SMP */
+
+#endif /* __ASM_TLBFLUSH_H */