patch-2.3.23 linux/include/asm-arm/proc-armo/cache.h

• Lines: 68
• Date: Wed Oct 20 16:29:08 1999
• Orig file: v2.3.22/linux/include/asm-arm/proc-armo/cache.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.22/linux/include/asm-arm/proc-armo/cache.h linux/include/asm-arm/proc-armo/cache.h
@@ -0,0 +1,67 @@
+/*
+ * Cache flushing...
+ */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_range(mm,start,end)		do { } while (0)
+#define flush_cache_page(vma,vmaddr)		do { } while (0)
+#define flush_page_to_ram(page)			do { } while (0)
+#define flush_icache_range(start,end)		do { } while (0)
+
+/*
+ * TLB flushing:
+ *
+ *  - 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(mm, start, end) flushes a range of pages
+ */
+#define flush_tlb_all()				memc_update_all()
+#define flush_tlb_mm(mm)			do { } while (0)
+#define flush_tlb_range(mm, start, end)		do { (void)(start); (void)(end); } while (0)
+#define flush_tlb_page(vma, vmaddr)		do { } while (0)
+
+/*
+ * The following handle the weird MEMC chip
+ */
+extern __inline__ void memc_update_all(void)
+{
+	struct task_struct *p;
+
+	cpu_memc_update_all(init_mm.pgd);
+	for_each_task(p) {
+		if (!p->mm)
+			continue;
+		cpu_memc_update_all(p->mm->pgd);
+	}
+	processor._set_pgd(current->active_mm->pgd);
+}
+
+extern __inline__ void memc_update_mm(struct mm_struct *mm)
+{
+	cpu_memc_update_all(mm->pgd);
+
+	if (mm == current->active_mm)
+		processor._set_pgd(mm->pgd);
+}
+
+extern __inline__ void
+memc_update_addr(struct mm_struct *mm, pte_t pte, unsigned long addr)
+{
+	cpu_memc_update_entry(mm->pgd, pte_val(pte), addr);
+
+	if (mm == current->active_mm)
+		processor._set_pgd(mm->pgd);
+}
+
+extern __inline__ void
+memc_clear(struct mm_struct *mm, unsigned long phys_addr)
+{
+	cpu_memc_update_entry(mm->pgd, phys_addr, 0);
+
+	if (mm == current->active_mm)
+		processor._set_pgd(mm->pgd);
+}
+
+#define __flush_entry_to_ram(entry)
+