Linux-2.6.12-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!
diff --git a/include/asm-m32r/tlbflush.h b/include/asm-m32r/tlbflush.h
new file mode 100644
index 0000000..bc7c407
--- /dev/null
+++ b/include/asm-m32r/tlbflush.h
@@ -0,0 +1,102 @@
+#ifndef _ASM_M32R_TLBFLUSH_H
+#define _ASM_M32R_TLBFLUSH_H
+
+#include <linux/config.h>
+#include <asm/m32r.h>
+
+/*
+ * TLB flushing:
+ *
+ * - flush_tlb() flushes the current mm struct TLBs
+ * - flush_tlb_all() flushes all processes TLBs
+ * - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ * - 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
+ * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ */
+
+extern void local_flush_tlb_all(void);
+extern void local_flush_tlb_mm(struct mm_struct *);
+extern void local_flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void local_flush_tlb_range(struct vm_area_struct *, unsigned long,
+ unsigned long);
+
+#ifndef CONFIG_SMP
+#ifdef CONFIG_MMU
+#define flush_tlb_all() local_flush_tlb_all()
+#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
+#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
+#define flush_tlb_range(vma, start, end) \
+ local_flush_tlb_range(vma, start, end)
+#define flush_tlb_kernel_range(start, end) local_flush_tlb_all()
+#else /* CONFIG_MMU */
+#define flush_tlb_all() do { } while (0)
+#define flush_tlb_mm(mm) do { } while (0)
+#define flush_tlb_page(vma, vmaddr) do { } while (0)
+#define flush_tlb_range(vma, start, end) do { } while (0)
+#endif /* CONFIG_MMU */
+#else /* CONFIG_SMP */
+extern void smp_flush_tlb_all(void);
+extern void smp_flush_tlb_mm(struct mm_struct *);
+extern void smp_flush_tlb_page(struct vm_area_struct *, unsigned long);
+extern void smp_flush_tlb_range(struct vm_area_struct *, unsigned long,
+ unsigned long);
+
+#define flush_tlb_all() smp_flush_tlb_all()
+#define flush_tlb_mm(mm) smp_flush_tlb_mm(mm)
+#define flush_tlb_page(vma, page) smp_flush_tlb_page(vma, page)
+#define flush_tlb_range(vma, start, end) \
+ smp_flush_tlb_range(vma, start, end)
+#define flush_tlb_kernel_range(start, end) smp_flush_tlb_all()
+#endif /* CONFIG_SMP */
+
+static __inline__ void __flush_tlb_page(unsigned long page)
+{
+ unsigned int tmpreg0, tmpreg1, tmpreg2;
+
+ __asm__ __volatile__ (
+ "seth %0, #high(%4) \n\t"
+ "st %3, @(%5, %0) \n\t"
+ "ldi %1, #1 \n\t"
+ "st %1, @(%6, %0) \n\t"
+ "add3 %1, %0, %7 \n\t"
+ ".fillinsn \n"
+ "1: \n\t"
+ "ld %2, @(%6, %0) \n\t"
+ "bnez %2, 1b \n\t"
+ "ld %0, @%1+ \n\t"
+ "ld %1, @%1 \n\t"
+ "st %2, @+%0 \n\t"
+ "st %2, @+%1 \n\t"
+ : "=&r" (tmpreg0), "=&r" (tmpreg1), "=&r" (tmpreg2)
+ : "r" (page), "i" (MMU_REG_BASE), "i" (MSVA_offset),
+ "i" (MTOP_offset), "i" (MIDXI_offset)
+ : "memory"
+ );
+}
+
+static __inline__ void __flush_tlb_all(void)
+{
+ unsigned int tmpreg0, tmpreg1;
+
+ __asm__ __volatile__ (
+ "seth %0, #high(%2) \n\t"
+ "or3 %0, %0, #low(%2) \n\t"
+ "ldi %1, #0xc \n\t"
+ "st %1, @%0 \n\t"
+ ".fillinsn \n"
+ "1: \n\t"
+ "ld %1, @%0 \n\t"
+ "bnez %1, 1b \n\t"
+ : "=&r" (tmpreg0), "=&r" (tmpreg1)
+ : "i" (MTOP) : "memory"
+ );
+}
+
+#define flush_tlb_pgtables(mm, start, end) do { } while (0)
+
+extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
+
+#endif /* _ASM_M32R_TLBFLUSH_H */
+