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authorRalf Baechle <ralf@linux-mips.org>2013-06-13 12:32:32 +0200
committerRalf Baechle <ralf@linux-mips.org>2013-06-21 18:07:00 +0200
commit23946ef1658dc7f3d8e2fbdbb2110b4cc4267654 (patch)
treeca3b169f3198187db9094f2defd80647c9f9b4f5 /arch/mips/kernel/head.S
parent27f62b9f294b7e2019c94c385abda43a0af6bb8b (diff)
downloadlinux-23946ef1658dc7f3d8e2fbdbb2110b4cc4267654.tar.bz2
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>
Diffstat (limited to 'arch/mips/kernel/head.S')
-rw-r--r--arch/mips/kernel/head.S39
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index c61cdaed2b1d..099912324423 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -28,45 +28,6 @@
#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
* 64-bit addresses. A full initialization of the CPU's status