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MIPS: Move gas macro MAPPED_KERNEL_SETUP_TLB to IP27-specific code.

It's IP27-specific and can only cause trouble in head.S.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle 12 years ago
parent
commit
23946ef165
2 changed files with 39 additions and 39 deletions
  1. 39 0
      arch/mips/include/asm/mach-ip27/kernel-entry-init.h
  2. 0 39
      arch/mips/kernel/head.S

+ 39 - 0
arch/mips/include/asm/mach-ip27/kernel-entry-init.h

@@ -23,6 +23,45 @@
 	dsrl	\res, NSRI_NODEID_SHFT
 	.endm
 
+	/*
+	 * inputs are the text nasid in t1, data nasid in t2.
+	 */
+	.macro MAPPED_KERNEL_SETUP_TLB
+#ifdef CONFIG_MAPPED_KERNEL
+	/*
+	 * This needs to read the nasid - assume 0 for now.
+	 * Drop in 0xffffffffc0000000 in tlbhi, 0+VG in tlblo_0,
+	 * 0+DVG in tlblo_1.
+	 */
+	dli	t0, 0xffffffffc0000000
+	dmtc0	t0, CP0_ENTRYHI
+	li	t0, 0x1c000		# Offset of text into node memory
+	dsll	t1, NASID_SHFT		# Shift text nasid into place
+	dsll	t2, NASID_SHFT		# Same for data nasid
+	or	t1, t1, t0		# Physical load address of kernel text
+	or	t2, t2, t0		# Physical load address of kernel data
+	dsrl	t1, 12			# 4K pfn
+	dsrl	t2, 12			# 4K pfn
+	dsll	t1, 6			# Get pfn into place
+	dsll	t2, 6			# Get pfn into place
+	li	t0, ((_PAGE_GLOBAL|_PAGE_VALID| _CACHE_CACHABLE_COW) >> 6)
+	or	t0, t0, t1
+	mtc0	t0, CP0_ENTRYLO0	# physaddr, VG, cach exlwr
+	li	t0, ((_PAGE_GLOBAL|_PAGE_VALID| _PAGE_DIRTY|_CACHE_CACHABLE_COW) >> 6)
+	or	t0, t0, t2
+	mtc0	t0, CP0_ENTRYLO1	# physaddr, DVG, cach exlwr
+	li	t0, 0x1ffe000		# MAPPED_KERN_TLBMASK, TLBPGMASK_16M
+	mtc0	t0, CP0_PAGEMASK
+	li	t0, 0			# KMAP_INX
+	mtc0	t0, CP0_INDEX
+	li	t0, 1
+	mtc0	t0, CP0_WIRED
+	tlbwi
+#else
+	mtc0	zero, CP0_WIRED
+#endif
+	.endm
+
 /*
  * Intentionally empty macro, used in head.S. Override in
  * arch/mips/mach-xxx/kernel-entry-init.h when necessary.

+ 0 - 39
arch/mips/kernel/head.S

@@ -27,45 +27,6 @@
 
 #include <kernel-entry-init.h>
 
-	/*
-	 * inputs are the text nasid in t1, data nasid in t2.
-	 */
-	.macro MAPPED_KERNEL_SETUP_TLB
-#ifdef CONFIG_MAPPED_KERNEL
-	/*
-	 * This needs to read the nasid - assume 0 for now.
-	 * Drop in 0xffffffffc0000000 in tlbhi, 0+VG in tlblo_0,
-	 * 0+DVG in tlblo_1.
-	 */
-	dli	t0, 0xffffffffc0000000
-	dmtc0	t0, CP0_ENTRYHI
-	li	t0, 0x1c000		# Offset of text into node memory
-	dsll	t1, NASID_SHFT		# Shift text nasid into place
-	dsll	t2, NASID_SHFT		# Same for data nasid
-	or	t1, t1, t0		# Physical load address of kernel text
-	or	t2, t2, t0		# Physical load address of kernel data
-	dsrl	t1, 12			# 4K pfn
-	dsrl	t2, 12			# 4K pfn
-	dsll	t1, 6			# Get pfn into place
-	dsll	t2, 6			# Get pfn into place
-	li	t0, ((_PAGE_GLOBAL|_PAGE_VALID| _CACHE_CACHABLE_COW) >> 6)
-	or	t0, t0, t1
-	mtc0	t0, CP0_ENTRYLO0	# physaddr, VG, cach exlwr
-	li	t0, ((_PAGE_GLOBAL|_PAGE_VALID| _PAGE_DIRTY|_CACHE_CACHABLE_COW) >> 6)
-	or	t0, t0, t2
-	mtc0	t0, CP0_ENTRYLO1	# physaddr, DVG, cach exlwr
-	li	t0, 0x1ffe000		# MAPPED_KERN_TLBMASK, TLBPGMASK_16M
-	mtc0	t0, CP0_PAGEMASK
-	li	t0, 0			# KMAP_INX
-	mtc0	t0, CP0_INDEX
-	li	t0, 1
-	mtc0	t0, CP0_WIRED
-	tlbwi
-#else
-	mtc0	zero, CP0_WIRED
-#endif
-	.endm
-
 	/*
 	 * For the moment disable interrupts, mark the kernel mode and
 	 * set ST0_KX so that the CPU does not spit fire when using