Messages in this thread Patch in this message |  | | Date | Mon, 19 May 2003 04:03:26 -0400 (EDT) | From | Zwane Mwaikambo <> | Subject | [PATCH][2.5] Add Focus processor bit comment |
| |
Add an explanation for clearing the focus bit on P4
Index: linux-2.5-devel/arch/i386/kernel/apic.c =================================================================== RCS file: /home/cvs/linux-2.5/arch/i386/kernel/apic.c,v retrieving revision 1.40 diff -u -p -B -r1.40 apic.c --- linux-2.5-devel/arch/i386/kernel/apic.c 17 Apr 2003 23:28:48 -0000 1.40 +++ linux-2.5-devel/arch/i386/kernel/apic.c 19 May 2003 07:07:52 -0000 @@ -291,6 +291,8 @@ void __init init_bsp_APIC(void) value = apic_read(APIC_SPIV); value &= ~APIC_VECTOR_MASK; value |= APIC_SPIV_APIC_ENABLED; + + /* This bit is reserved on P4/Xeon and should be cleared */ if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 == 15)) value &= ~APIC_SPIV_FOCUS_DISABLED; else -- function.linuxpower.ca - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |