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-rw-r--r--arch/m68k/include/asm/tlbflush.h268
-rw-r--r--arch/m68k/include/asm/tlbflush_mm.h219
-rw-r--r--arch/m68k/include/asm/tlbflush_no.h55
3 files changed, 265 insertions, 277 deletions
diff --git a/arch/m68k/include/asm/tlbflush.h b/arch/m68k/include/asm/tlbflush.h
index b6f93b30951..a6b4ed4fc90 100644
--- a/arch/m68k/include/asm/tlbflush.h
+++ b/arch/m68k/include/asm/tlbflush.h
@@ -1,5 +1,267 @@
-#ifdef __uClinux__
-#include "tlbflush_no.h"
+#ifndef _M68K_TLBFLUSH_H
+#define _M68K_TLBFLUSH_H
+
+#ifdef CONFIG_MMU
+#ifndef CONFIG_SUN3
+
+#include <asm/current.h>
+
+static inline void flush_tlb_kernel_page(void *addr)
+{
+ if (CPU_IS_040_OR_060) {
+ mm_segment_t old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ __asm__ __volatile__(".chip 68040\n\t"
+ "pflush (%0)\n\t"
+ ".chip 68k"
+ : : "a" (addr));
+ set_fs(old_fs);
+ } else if (CPU_IS_020_OR_030)
+ __asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr));
+}
+
+/*
+ * flush all user-space atc entries.
+ */
+static inline void __flush_tlb(void)
+{
+ if (CPU_IS_040_OR_060)
+ __asm__ __volatile__(".chip 68040\n\t"
+ "pflushan\n\t"
+ ".chip 68k");
+ else if (CPU_IS_020_OR_030)
+ __asm__ __volatile__("pflush #0,#4");
+}
+
+static inline void __flush_tlb040_one(unsigned long addr)
+{
+ __asm__ __volatile__(".chip 68040\n\t"
+ "pflush (%0)\n\t"
+ ".chip 68k"
+ : : "a" (addr));
+}
+
+static inline void __flush_tlb_one(unsigned long addr)
+{
+ if (CPU_IS_040_OR_060)
+ __flush_tlb040_one(addr);
+ else if (CPU_IS_020_OR_030)
+ __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr));
+}
+
+#define flush_tlb() __flush_tlb()
+
+/*
+ * flush all atc entries (both kernel and user-space entries).
+ */
+static inline void flush_tlb_all(void)
+{
+ if (CPU_IS_040_OR_060)
+ __asm__ __volatile__(".chip 68040\n\t"
+ "pflusha\n\t"
+ ".chip 68k");
+ else if (CPU_IS_020_OR_030)
+ __asm__ __volatile__("pflusha");
+}
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+ if (mm == current->active_mm)
+ __flush_tlb();
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+ if (vma->vm_mm == current->active_mm) {
+ mm_segment_t old_fs = get_fs();
+ set_fs(USER_DS);
+ __flush_tlb_one(addr);
+ set_fs(old_fs);
+ }
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+ if (vma->vm_mm == current->active_mm)
+ __flush_tlb();
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+ flush_tlb_all();
+}
+
#else
-#include "tlbflush_mm.h"
+
+
+/* Reserved PMEGs. */
+extern char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
+extern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM];
+extern unsigned char pmeg_alloc[SUN3_PMEGS_NUM];
+extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM];
+
+/* Flush all userspace mappings one by one... (why no flush command,
+ sun?) */
+static inline void flush_tlb_all(void)
+{
+ unsigned long addr;
+ unsigned char ctx, oldctx;
+
+ oldctx = sun3_get_context();
+ for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
+ for(ctx = 0; ctx < 8; ctx++) {
+ sun3_put_context(ctx);
+ sun3_put_segmap(addr, SUN3_INVALID_PMEG);
+ }
+ }
+
+ sun3_put_context(oldctx);
+ /* erase all of the userspace pmeg maps, we've clobbered them
+ all anyway */
+ for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
+ if(pmeg_alloc[addr] == 1) {
+ pmeg_alloc[addr] = 0;
+ pmeg_ctx[addr] = 0;
+ pmeg_vaddr[addr] = 0;
+ }
+ }
+
+}
+
+/* Clear user TLB entries within the context named in mm */
+static inline void flush_tlb_mm (struct mm_struct *mm)
+{
+ unsigned char oldctx;
+ unsigned char seg;
+ unsigned long i;
+
+ oldctx = sun3_get_context();
+ sun3_put_context(mm->context);
+
+ for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
+ seg = sun3_get_segmap(i);
+ if(seg == SUN3_INVALID_PMEG)
+ continue;
+
+ sun3_put_segmap(i, SUN3_INVALID_PMEG);
+ pmeg_alloc[seg] = 0;
+ pmeg_ctx[seg] = 0;
+ pmeg_vaddr[seg] = 0;
+ }
+
+ sun3_put_context(oldctx);
+
+}
+
+/* Flush a single TLB page. In this case, we're limited to flushing a
+ single PMEG */
+static inline void flush_tlb_page (struct vm_area_struct *vma,
+ unsigned long addr)
+{
+ unsigned char oldctx;
+ unsigned char i;
+
+ oldctx = sun3_get_context();
+ sun3_put_context(vma->vm_mm->context);
+ addr &= ~SUN3_PMEG_MASK;
+ if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG)
+ {
+ pmeg_alloc[i] = 0;
+ pmeg_ctx[i] = 0;
+ pmeg_vaddr[i] = 0;
+ sun3_put_segmap (addr, SUN3_INVALID_PMEG);
+ }
+ sun3_put_context(oldctx);
+
+}
+/* Flush a range of pages from TLB. */
+
+static inline void flush_tlb_range (struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+ struct mm_struct *mm = vma->vm_mm;
+ unsigned char seg, oldctx;
+
+ start &= ~SUN3_PMEG_MASK;
+
+ oldctx = sun3_get_context();
+ sun3_put_context(mm->context);
+
+ while(start < end)
+ {
+ if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG)
+ goto next;
+ if(pmeg_ctx[seg] == mm->context) {
+ pmeg_alloc[seg] = 0;
+ pmeg_ctx[seg] = 0;
+ pmeg_vaddr[seg] = 0;
+ }
+ sun3_put_segmap(start, SUN3_INVALID_PMEG);
+ next:
+ start += SUN3_PMEG_SIZE;
+ }
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+ flush_tlb_all();
+}
+
+/* Flush kernel page from TLB. */
+static inline void flush_tlb_kernel_page (unsigned long addr)
+{
+ sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG);
+}
+
#endif
+
+#else /* !CONFIG_MMU */
+
+/*
+ * flush all user-space atc entries.
+ */
+static inline void __flush_tlb(void)
+{
+ BUG();
+}
+
+static inline void __flush_tlb_one(unsigned long addr)
+{
+ BUG();
+}
+
+#define flush_tlb() __flush_tlb()
+
+/*
+ * flush all atc entries (both kernel and user-space entries).
+ */
+static inline void flush_tlb_all(void)
+{
+ BUG();
+}
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+ BUG();
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+{
+ BUG();
+}
+
+static inline void flush_tlb_range(struct mm_struct *mm,
+ unsigned long start, unsigned long end)
+{
+ BUG();
+}
+
+static inline void flush_tlb_kernel_page(unsigned long addr)
+{
+ BUG();
+}
+
+#endif /* CONFIG_MMU */
+
+#endif /* _M68K_TLBFLUSH_H */
diff --git a/arch/m68k/include/asm/tlbflush_mm.h b/arch/m68k/include/asm/tlbflush_mm.h
deleted file mode 100644
index acb6bf21a32..00000000000
--- a/arch/m68k/include/asm/tlbflush_mm.h
+++ /dev/null
@@ -1,219 +0,0 @@
-#ifndef _M68K_TLBFLUSH_H
-#define _M68K_TLBFLUSH_H
-
-
-#ifndef CONFIG_SUN3
-
-#include <asm/current.h>
-
-static inline void flush_tlb_kernel_page(void *addr)
-{
- if (CPU_IS_040_OR_060) {
- mm_segment_t old_fs = get_fs();
- set_fs(KERNEL_DS);
- __asm__ __volatile__(".chip 68040\n\t"
- "pflush (%0)\n\t"
- ".chip 68k"
- : : "a" (addr));
- set_fs(old_fs);
- } else if (CPU_IS_020_OR_030)
- __asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr));
-}
-
-/*
- * flush all user-space atc entries.
- */
-static inline void __flush_tlb(void)
-{
- if (CPU_IS_040_OR_060)
- __asm__ __volatile__(".chip 68040\n\t"
- "pflushan\n\t"
- ".chip 68k");
- else if (CPU_IS_020_OR_030)
- __asm__ __volatile__("pflush #0,#4");
-}
-
-static inline void __flush_tlb040_one(unsigned long addr)
-{
- __asm__ __volatile__(".chip 68040\n\t"
- "pflush (%0)\n\t"
- ".chip 68k"
- : : "a" (addr));
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
- if (CPU_IS_040_OR_060)
- __flush_tlb040_one(addr);
- else if (CPU_IS_020_OR_030)
- __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr));
-}
-
-#define flush_tlb() __flush_tlb()
-
-/*
- * flush all atc entries (both kernel and user-space entries).
- */
-static inline void flush_tlb_all(void)
-{
- if (CPU_IS_040_OR_060)
- __asm__ __volatile__(".chip 68040\n\t"
- "pflusha\n\t"
- ".chip 68k");
- else if (CPU_IS_020_OR_030)
- __asm__ __volatile__("pflusha");
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- if (mm == current->active_mm)
- __flush_tlb();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
- if (vma->vm_mm == current->active_mm) {
- mm_segment_t old_fs = get_fs();
- set_fs(USER_DS);
- __flush_tlb_one(addr);
- set_fs(old_fs);
- }
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- if (vma->vm_mm == current->active_mm)
- __flush_tlb();
-}
-
-static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- flush_tlb_all();
-}
-
-#else
-
-
-/* Reserved PMEGs. */
-extern char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
-extern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM];
-extern unsigned char pmeg_alloc[SUN3_PMEGS_NUM];
-extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM];
-
-/* Flush all userspace mappings one by one... (why no flush command,
- sun?) */
-static inline void flush_tlb_all(void)
-{
- unsigned long addr;
- unsigned char ctx, oldctx;
-
- oldctx = sun3_get_context();
- for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
- for(ctx = 0; ctx < 8; ctx++) {
- sun3_put_context(ctx);
- sun3_put_segmap(addr, SUN3_INVALID_PMEG);
- }
- }
-
- sun3_put_context(oldctx);
- /* erase all of the userspace pmeg maps, we've clobbered them
- all anyway */
- for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
- if(pmeg_alloc[addr] == 1) {
- pmeg_alloc[addr] = 0;
- pmeg_ctx[addr] = 0;
- pmeg_vaddr[addr] = 0;
- }
- }
-
-}
-
-/* Clear user TLB entries within the context named in mm */
-static inline void flush_tlb_mm (struct mm_struct *mm)
-{
- unsigned char oldctx;
- unsigned char seg;
- unsigned long i;
-
- oldctx = sun3_get_context();
- sun3_put_context(mm->context);
-
- for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
- seg = sun3_get_segmap(i);
- if(seg == SUN3_INVALID_PMEG)
- continue;
-
- sun3_put_segmap(i, SUN3_INVALID_PMEG);
- pmeg_alloc[seg] = 0;
- pmeg_ctx[seg] = 0;
- pmeg_vaddr[seg] = 0;
- }
-
- sun3_put_context(oldctx);
-
-}
-
-/* Flush a single TLB page. In this case, we're limited to flushing a
- single PMEG */
-static inline void flush_tlb_page (struct vm_area_struct *vma,
- unsigned long addr)
-{
- unsigned char oldctx;
- unsigned char i;
-
- oldctx = sun3_get_context();
- sun3_put_context(vma->vm_mm->context);
- addr &= ~SUN3_PMEG_MASK;
- if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG)
- {
- pmeg_alloc[i] = 0;
- pmeg_ctx[i] = 0;
- pmeg_vaddr[i] = 0;
- sun3_put_segmap (addr, SUN3_INVALID_PMEG);
- }
- sun3_put_context(oldctx);
-
-}
-/* Flush a range of pages from TLB. */
-
-static inline void flush_tlb_range (struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- struct mm_struct *mm = vma->vm_mm;
- unsigned char seg, oldctx;
-
- start &= ~SUN3_PMEG_MASK;
-
- oldctx = sun3_get_context();
- sun3_put_context(mm->context);
-
- while(start < end)
- {
- if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG)
- goto next;
- if(pmeg_ctx[seg] == mm->context) {
- pmeg_alloc[seg] = 0;
- pmeg_ctx[seg] = 0;
- pmeg_vaddr[seg] = 0;
- }
- sun3_put_segmap(start, SUN3_INVALID_PMEG);
- next:
- start += SUN3_PMEG_SIZE;
- }
-}
-
-static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- flush_tlb_all();
-}
-
-/* Flush kernel page from TLB. */
-static inline void flush_tlb_kernel_page (unsigned long addr)
-{
- sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG);
-}
-
-#endif
-
-#endif /* _M68K_TLBFLUSH_H */
diff --git a/arch/m68k/include/asm/tlbflush_no.h b/arch/m68k/include/asm/tlbflush_no.h
deleted file mode 100644
index a470cfb803e..00000000000
--- a/arch/m68k/include/asm/tlbflush_no.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef _M68KNOMMU_TLBFLUSH_H
-#define _M68KNOMMU_TLBFLUSH_H
-
-/*
- * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>
- * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>
- */
-
-#include <asm/setup.h>
-
-/*
- * flush all user-space atc entries.
- */
-static inline void __flush_tlb(void)
-{
- BUG();
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
- BUG();
-}
-
-#define flush_tlb() __flush_tlb()
-
-/*
- * flush all atc entries (both kernel and user-space entries).
- */
-static inline void flush_tlb_all(void)
-{
- BUG();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- BUG();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
- BUG();
-}
-
-static inline void flush_tlb_range(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- BUG();
-}
-
-static inline void flush_tlb_kernel_page(unsigned long addr)
-{
- BUG();
-}
-
-#endif /* _M68KNOMMU_TLBFLUSH_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-21 02:59:02 +0000