[coldfire]: 2.6.31 support (WiP)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24087 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 62 insertions, 0 deletions

diff --git a/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_tlbflush.h b/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_tlbflush.h
new file mode 100644
index 000000000..ae253d4ee
--- /dev/null
+++ b/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_tlbflush.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+#ifndef M68K_CF_TLBFLUSH_H
+#define M68K_CF_TLBFLUSH_H
+
+#include <asm/coldfire.h>
+
+/* Flush all userspace mappings.  */
+static inline void flush_tlb_all(void)
+{
+	preempt_disable();
+	*MMUOR = MMUOR_CNL;
+	preempt_enable();
+}
+
+/* Clear user TLB entries within the context named in mm */
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+	preempt_disable();
+	*MMUOR = MMUOR_CNL;
+	preempt_enable();
+}
+
+/* Flush a single TLB page.  */
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+				   unsigned long addr)
+{
+	preempt_disable();
+	*MMUOR = MMUOR_CNL;
+	preempt_enable();
+}
+/* Flush a range of pages from TLB. */
+
+static inline void flush_tlb_range(struct mm_struct *mm,
+		      unsigned long start, unsigned long end)
+{
+	preempt_disable();
+	*MMUOR = MMUOR_CNL;
+	preempt_enable();
+}
+
+/* Flush kernel page from TLB. */
+static inline void flush_tlb_kernel_page(void *addr)
+{
+	preempt_disable();
+	*MMUOR = MMUOR_CNL;
+	preempt_enable();
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+	unsigned long end)
+{
+	flush_tlb_all();
+}
+
+extern inline void flush_tlb_pgtables(struct mm_struct *mm,
+				      unsigned long start, unsigned long end)
+{
+}
+
+#endif /* M68K_CF_TLBFLUSH_H */