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| author |   Magnus Damm <damm@igel.co.jp> | 2009-03-18 08:47:31 +0000 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2009-03-18 18:44:22 +0900 |
| commit | 7be5c55af0cc58e54e42e1702d837527e15b8414 (patch) | |
| tree | 87d6ecab0ff11b0b75053bf57ee462a99828f981 /arch/sh/kernel/machine_kexec.c | |
| parent | sh: Flush only the needed range when unmapping a VMA. (diff) | |
| download | linux-dev-7be5c55af0cc58e54e42e1702d837527e15b8414.tar.xz linux-dev-7be5c55af0cc58e54e42e1702d837527e15b8414.zip | |
sh: simplify kexec vbr code
Setup the vbr register in machine_kexec(). This
instead of passing values to the assembly snippet.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/machine_kexec.c')
| -rw-r--r-- | arch/sh/kernel/machine_kexec.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 94df56b0d1f6..d3318f99256b 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -23,8 +23,7 @@ typedef NORET_TYPE void (*relocate_new_kernel_t)( unsigned long indirection_page, unsigned long reboot_code_buffer, - unsigned long start_address, - unsigned long vbr_reg) ATTRIB_NORET; + unsigned long start_address) ATTRIB_NORET; extern const unsigned char relocate_new_kernel[]; extern const unsigned int relocate_new_kernel_size; @@ -76,14 +75,8 @@ void machine_kexec(struct kimage *image) unsigned long page_list; unsigned long reboot_code_buffer; - unsigned long vbr_reg; relocate_new_kernel_t rnk; -#if defined(CONFIG_SH_STANDARD_BIOS) - vbr_reg = ((unsigned long )gdb_vbr_vector) - 0x100; -#else - vbr_reg = 0x80000000; // dummy -#endif /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); @@ -100,9 +93,15 @@ void machine_kexec(struct kimage *image) kexec_info(image); flush_cache_all(); + set_bl_bit(); +#if defined(CONFIG_SH_STANDARD_BIOS) + asm volatile("ldc %0, vbr" : + : "r" (((unsigned long) gdb_vbr_vector) - 0x100) + : "memory"); +#endif /* now call it */ rnk = (relocate_new_kernel_t) reboot_code_buffer; - (*rnk)(page_list, reboot_code_buffer, P2SEGADDR(image->start), vbr_reg); + (*rnk)(page_list, reboot_code_buffer, P2SEGADDR(image->start)); } void arch_crash_save_vmcoreinfo(void) |