Re: [PATCH] [8/45] x86_64: Use string instruction memcpy on AMD Fam11h

On Sep 21 2007 22:44, Andi Kleen wrote:
>Subject: [PATCH] [8/45] x86_64: Use string instruction memcpy on AMD Fam11h
>
>--- linux.orig/arch/x86_64/kernel/setup.c
>+++ linux/arch/x86_64/kernel/setup.c
>@@ -575,7 +575,7 @@ static void __cpuinit init_amd(struct cp
> 	level = cpuid_eax(1);
> 	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58))
> 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
>-	if (c->x86 == 0x10)
>+	if (c->x86 == 0x10 || c->x86 == 0x11)
> 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);

Perhaps it can be assumed that all future CPU versions have this and
	if (c->x86 >= 0x10)
could be used?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • [PATCH] [0/45] x86 2.6.24 patches review I
    • From: Andi Kleen <[email protected]>
  • [PATCH] [8/45] x86_64: Use string instruction memcpy on AMD Fam11h
    • From: Andi Kleen <[email protected]>

• Prev by Date: Re: [PATCH] [24/45] x86: Introduce frame_pointer() and stack_pointer()
• Next by Date: Re: [PATCH] [32/45] x86_64: hide cond_syscall behind __KERNEL__
• Previous by thread: [PATCH] [8/45] x86_64: Use string instruction memcpy on AMD Fam11h
• Next by thread: [PATCH] [9/45] i386: Clean up duplicate includes in arch/i386/kernel/
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]