diff options
| author | Keir Fraser <keir@xen.org> | 2012-03-07 09:12:23 +0000 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2012-03-07 09:12:23 +0000 |
| commit | 8a058bcef741145b49df3b6321ad1f05f047af15 (patch) | |
| tree | 3abfc3b2cf46a30784c2df88d935dbb892611eae /xen | |
| parent | 1728459decd393bbf99ea4625973f9c6b0b300bf (diff) | |
| download | xen-8a058bcef741145b49df3b6321ad1f05f047af15.tar.gz xen-8a058bcef741145b49df3b6321ad1f05f047af15.tar.bz2 xen-8a058bcef741145b49df3b6321ad1f05f047af15.zip | |
Revert 24973:50a70b652b43 "x86: Use deep C states for off-lined CPUs"
applied already
Signed-off-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen')
| -rw-r--r-- | xen/arch/x86/acpi/cpu_idle.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/xen/arch/x86/acpi/cpu_idle.c b/xen/arch/x86/acpi/cpu_idle.c index 75593d146a..a675867f24 100644 --- a/xen/arch/x86/acpi/cpu_idle.c +++ b/xen/arch/x86/acpi/cpu_idle.c @@ -566,7 +566,6 @@ static void acpi_dead_idle(void) { struct acpi_processor_power *power; struct acpi_processor_cx *cx; - struct cpuinfo_x86 *c = ¤t_cpu_data; if ( (power = processor_powers[smp_processor_id()]) == NULL ) goto default_halt; @@ -602,23 +601,6 @@ static void acpi_dead_idle(void) mb(); __mwait(cx->address, 0); } - } - else if ( c->x86_vendor == X86_VENDOR_AMD && - cx->entry_method == ACPI_CSTATE_EM_SYSIO ) - { - /* Intel prefers not to use SYSIO */ - - /* Avoid references to shared data after the cache flush */ - u32 address = cx->address; - u32 pmtmr_ioport_local = pmtmr_ioport; - - wbinvd(); - - while ( 1 ) - { - inb(address); - inl(pmtmr_ioport_local); - } } else if ( current_cpu_data.x86_vendor == X86_VENDOR_AMD && cx->entry_method == ACPI_CSTATE_EM_SYSIO ) |