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| author | Magnus Damm <damm@igel.co.jp> | 2009-03-18 08:49:45 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-03-18 18:44:32 +0900 |
| commit | e4e063d0c288bd65c56dd855337780a541ed928d (patch) | |
| tree | 88ac50d334c002a60861d92afc5a849b8e26b48f /arch | |
| parent | 7be5c55af0cc58e54e42e1702d837527e15b8414 (diff) | |
| download | linux-3.10-e4e063d0c288bd65c56dd855337780a541ed928d.tar.gz linux-3.10-e4e063d0c288bd65c56dd855337780a541ed928d.tar.bz2 linux-3.10-e4e063d0c288bd65c56dd855337780a541ed928d.zip | |
sh: rework kexec segment code
Rework the kexec code to avoid using P2SEG. Instead
we walk the page list in machine_kexec() and convert
the addresses from physical to virtual using C.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/kernel/machine_kexec.c | 17 | ||||
| -rw-r--r-- | arch/sh/kernel/relocate_kernel.S | 6 |
2 files changed, 17 insertions, 6 deletions
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index d3318f99256..25b4748fdc7 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -76,6 +76,21 @@ void machine_kexec(struct kimage *image) unsigned long page_list; unsigned long reboot_code_buffer; relocate_new_kernel_t rnk; + unsigned long entry; + unsigned long *ptr; + + /* + * Nicked from the mips version of machine_kexec(): + * The generic kexec code builds a page list with physical + * addresses. Use phys_to_virt() to convert them to virtual. + */ + for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE); + ptr = (entry & IND_INDIRECTION) ? + phys_to_virt(entry & PAGE_MASK) : ptr + 1) { + if (*ptr & IND_SOURCE || *ptr & IND_INDIRECTION || + *ptr & IND_DESTINATION) + *ptr = (unsigned long) phys_to_virt(*ptr); + } /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); @@ -101,7 +116,7 @@ void machine_kexec(struct kimage *image) #endif /* now call it */ rnk = (relocate_new_kernel_t) reboot_code_buffer; - (*rnk)(page_list, reboot_code_buffer, P2SEGADDR(image->start)); + (*rnk)(page_list, reboot_code_buffer, image->start); } void arch_crash_save_vmcoreinfo(void) diff --git a/arch/sh/kernel/relocate_kernel.S b/arch/sh/kernel/relocate_kernel.S index 8b50b2c873a..2a6630be668 100644 --- a/arch/sh/kernel/relocate_kernel.S +++ b/arch/sh/kernel/relocate_kernel.S @@ -18,7 +18,6 @@ relocate_new_kernel: /* r6 = start_address */ mov.l 10f,r8 /* PAGE_SIZE */ - mov.l 11f,r9 /* P2SEG */ /* stack setting */ add r8,r5 @@ -29,9 +28,8 @@ relocate_new_kernel: 0: mov.l @r4+,r0 /* cmd = *ind++ */ -1: /* addr = (cmd | P2SEG) & 0xfffffff0 */ +1: /* addr = cmd & 0xfffffff0 */ mov r0,r2 - or r9,r2 mov #-16,r1 and r1,r2 @@ -85,8 +83,6 @@ relocate_new_kernel: .align 2 10: .long PAGE_SIZE -11: - .long P2SEG relocate_new_kernel_end: |