Sign Up
Log In
Log In
or
Sign Up
Places
All Projects
Status Monitor
Collapse sidebar
openSUSE:12.2
xen
25195-x86-cpuidle-C2-no-flush-or-bm-check.patch
Overview
Repositories
Revisions
Requests
Users
Attributes
Meta
File 25195-x86-cpuidle-C2-no-flush-or-bm-check.patch of Package xen
# HG changeset patch # User Wei Wang <wei.wang2@amd.com> # Date 1334574328 -7200 # Node ID a06e6cdeafe34964721df3ddb32774d4634fd7ad # Parent 6b72eb3b40cf2b3d5a6c75d68fa7093c57fc0d1f x86/cpuidle: do not flush cache unless entering C3 Nor is there a need to disable bus master arbitration in that case. Signed-off-by: Wei Wang <wei.wang2@amd.com> Modified-by: Zhang, Yang Z <yang.z.zhang@intel.com> Signed-off-by: Jan Beulich <jbeulich@suse.com> Committed-by: Jan Beulich <jbeulich@suse.com> --- a/xen/arch/x86/acpi/cpu_idle.c +++ b/xen/arch/x86/acpi/cpu_idle.c @@ -485,7 +485,9 @@ static void acpi_processor_idle(void) * not set. In that case we cannot do much, we enter C3 * without doing anything. */ - if ( power->flags.bm_check && power->flags.bm_control ) + if ( cx->type != ACPI_STATE_C3 ) + /* nothing to be done here */; + else if ( power->flags.bm_check && power->flags.bm_control ) { spin_lock(&c3_cpu_status.lock); if ( ++c3_cpu_status.count == num_online_cpus() ) @@ -507,7 +509,8 @@ static void acpi_processor_idle(void) /* Invoke C3 */ acpi_idle_do_entry(cx); - if ( power->flags.bm_check && power->flags.bm_control ) + if ( (cx->type == ACPI_STATE_C3) && + power->flags.bm_check && power->flags.bm_control ) { /* Enable bus master arbitration */ spin_lock(&c3_cpu_status.lock);
Locations
Projects
Search
Status Monitor
Help
OpenBuildService.org
Documentation
API Documentation
Code of Conduct
Contact
Support
@OBShq
Terms
openSUSE Build Service is sponsored by
The Open Build Service is an
openSUSE project
.
Sign Up
Log In
Places
Places
All Projects
Status Monitor