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| author | Ralf Baechle <ralf@linux-mips.org> | 2007-07-31 15:17:21 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-07-31 21:35:36 +0100 |
| commit | 00be0f305fa69adb9f9d7b9447283b862b853e9e (patch) | |
| tree | eb08ba26308be2c77fd79571d11a00acb0e031a2 /arch/mips/kernel/relocate_kernel.S | |
| parent | 1065932fcb73ca188a497d8853a1a00422ce6c62 (diff) | |
| download | linux-00be0f305fa69adb9f9d7b9447283b862b853e9e.tar.gz linux-00be0f305fa69adb9f9d7b9447283b862b853e9e.tar.bz2 linux-00be0f305fa69adb9f9d7b9447283b862b853e9e.zip | |
[MIPS] Kexec: Fix several 64-bit bugs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/relocate_kernel.S')
| -rw-r--r-- | arch/mips/kernel/relocate_kernel.S | 78 |
1 files changed, 40 insertions, 38 deletions
diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S index a3f0d00c1334..87481f916a61 100644 --- a/arch/mips/kernel/relocate_kernel.S +++ b/arch/mips/kernel/relocate_kernel.S @@ -14,67 +14,69 @@ #include <asm/stackframe.h> #include <asm/addrspace.h> - .globl relocate_new_kernel -relocate_new_kernel: - - PTR_L s0, kexec_indirection_page - PTR_L s1, kexec_start_address +LEAF(relocate_new_kernel) + PTR_L s0, kexec_indirection_page + PTR_L s1, kexec_start_address process_entry: - PTR_L s2, (s0) - PTR_ADD s0, s0, SZREG + PTR_L s2, (s0) + PTR_ADD s0, s0, SZREG /* destination page */ - and s3, s2, 0x1 - beq s3, zero, 1f - and s4, s2, ~0x1 /* store destination addr in s4 */ - move a0, s4 - b process_entry + and s3, s2, 0x1 + beq s3, zero, 1f + and s4, s2, ~0x1 /* store destination addr in s4 */ + move a0, s4 + b process_entry 1: /* indirection page, update s0 */ - and s3, s2, 0x2 - beq s3, zero, 1f - and s0, s2, ~0x2 - b process_entry + and s3, s2, 0x2 + beq s3, zero, 1f + and s0, s2, ~0x2 + b process_entry 1: /* done page */ - and s3, s2, 0x4 - beq s3, zero, 1f - b done + and s3, s2, 0x4 + beq s3, zero, 1f + b done 1: /* source page */ - and s3, s2, 0x8 - beq s3, zero, process_entry - and s2, s2, ~0x8 - li s6, (1 << PAGE_SHIFT) / SZREG + and s3, s2, 0x8 + beq s3, zero, process_entry + and s2, s2, ~0x8 + li s6, (1 << PAGE_SHIFT) / SZREG copy_word: /* copy page word by word */ - REG_L s5, (s2) - REG_S s5, (s4) - INT_ADD s4, s4, SZREG - INT_ADD s2, s2, SZREG - INT_SUB s6, s6, 1 - beq s6, zero, process_entry - b copy_word - b process_entry + REG_L s5, (s2) + REG_S s5, (s4) + PTR_ADD s4, s4, SZREG + PTR_ADD s2, s2, SZREG + LONG_SUB s6, s6, 1 + beq s6, zero, process_entry + b copy_word + b process_entry done: /* jump to kexec_start_address */ - j s1 + j s1 + END(relocate_new_kernel) - .globl kexec_start_address kexec_start_address: - .long 0x0 + EXPORT(kexec_start_address) + PTR 0x0 + .size kexec_start_address, PTRSIZE - .globl kexec_indirection_page kexec_indirection_page: - .long 0x0 + EXPORT(kexec_indirection_page) + PTR 0 + .size kexec_indirection_page, PTRSIZE relocate_new_kernel_end: - .globl relocate_new_kernel_size relocate_new_kernel_size: - .long relocate_new_kernel_end - relocate_new_kernel + EXPORT(relocate_new_kernel_size) + PTR relocate_new_kernel_end - relocate_new_kernel + .size relocate_new_kernel_size, PTRSIZE |