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SubjectRe: software suspend patch [3/6]
On Mon, Nov 29, 2004 at 12:23:20AM +0800, hugang@soulinfo.com wrote:
> Hi Pavel Machek, Nigel Cunningham:
>
> device-tree.diff
> base from suspend2 with a little changed.
>
> core.diff
> 1: redefine struct pbe for using _no_ continuous as pagedir.
> 2: make shrink memory as little as possible.
> 3: using a bitmap speed up collide check in page relocating.
> 4: pagecache saving ready.
>
> i386.diff
> ppc.diff
> i386 and powerpc suspend update.
>
> pagecachs_addon.diff
> if enable page caches saving, must using it, it making saving
> pagecaches safe. idea from suspend2.
>
> ppcfix.diff
> fix compile error.
> $ gcc -v
> ....
> gcc version 2.95.4 20011002 (Debian prerelease)
>
> I'm using 2.6.9-ck3 With above patch, swsusp1 works prefect in my
> PowerPC and x86 PC with Highmem and prepempt option enabled.
>
> I hope the core.diff@1,@2,@3 i386.diff ppc.diff will merge into
> mainline kernel ASAP, :). from I view point device-tree.diff is
> very usefuly when using pagecache saving and pagecachs_addon.diff
> that's really hack for making pagecache saving safe.
>

--- 2.6.9-lzf//arch/i386/kernel/signal.c 2004-11-28 23:17:23.000000000 +0800
+++ 2.6.9/arch/i386/kernel/signal.c 2004-11-28 23:16:59.000000000 +0800
@@ -587,6 +587,7 @@ int fastcall do_signal(struct pt_regs *r

if (current->flags & PF_FREEZE) {
refrigerator(0);
+ recalc_sigpending();
if (!signal_pending(current))
goto no_signal;
}
--- 2.6.9-lzf//arch/i386/power/swsusp.S 2004-11-26 12:32:45.000000000 +0800
+++ 2.6.9/arch/i386/power/swsusp.S 2004-11-28 23:16:59.000000000 +0800
@@ -31,24 +31,33 @@ ENTRY(swsusp_arch_resume)
movl $swsusp_pg_dir-__PAGE_OFFSET,%ecx
movl %ecx,%cr3

- movl pagedir_nosave, %ebx
- xorl %eax, %eax
- xorl %edx, %edx
- .p2align 4,,7
-
-copy_loop:
- movl 4(%ebx,%edx),%edi
- movl (%ebx,%edx),%esi
-
- movl $1024, %ecx
- rep
- movsl
-
- incl %eax
- addl $16, %edx
- cmpl nr_copy_pages,%eax
- jb copy_loop
- .p2align 4,,7
+ movl pagedir_nosave, %eax
+ test %eax, %eax
+ je copy_loop_end
+ movl $1024, %edx
+
+copy_loop_start:
+ movl 0xc(%eax), %ebp
+ xorl %ebx, %ebx
+ leal 0x0(%esi),%esi
+
+copy_one_pgdir:
+ movl 0x4(%eax),%edi
+ test %edi, %edi
+ je copy_loop_end
+
+ movl (%eax), %esi
+ movl %edx, %ecx
+ repz movsl %ds:(%esi),%es:(%edi)
+
+ incl %ebx
+ addl $0x10, %eax
+ cmpl $0xff, %ebx
+ jbe copy_one_pgdir
+ test %ebp, %ebp
+ movl %ebp, %eax
+ jne copy_loop_start
+copy_loop_end:

movl saved_context_esp, %esp
movl saved_context_ebp, %ebp
--
--
Hu Gang / Steve
Linux Registered User 204016
GPG Public Key: http://soulinfo.com/~hugang/hugang.asc
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