pt_i386.c revision b47b5b34b42fa8056577c43496cdb99a4c99f8d7
/*
* Copyright 2009, Intel Corporation
* Copyright 2009, Sun Microsystems, Inc
*
* This file is part of PowerTOP
*
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program in a file named COPYING; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Authors:
* Arjan van de Ven <arjan@linux.intel.com>
* Eric C Saxe <eric.saxe@sun.com>
* Aubrey Li <aubrey.li@intel.com>
*/
/*
* GPL Disclaimer
*
* For the avoidance of doubt, except that if any license choice other
* than GPL or LGPL is available it will apply instead, Sun elects to
* use only the General Public License version 2 (GPLv2) at this time
* for any software where a choice of GPL license versions is made
* available with the language indicating that GPLv2 or any later
* version may be used, or where a choice of which version of the GPL
* is applied is otherwise unspecified.
*/
/*
* DTrace scripts for observing interrupts, callouts and cyclic events
* that cause CPU activity. Such activity prevents the processor from
* entering lower power states and reducing power consumption.
*
* g_dtp_events is the default script
*/
const char *g_dtp_events =
"interrupt-complete"
"/arg0 != NULL && arg3 !=0/"
"{"
" this->devi = (struct dev_info *)arg0;"
" @interrupts[stringof(`devnamesp[this->devi->devi_major].dn_name),"
" this->devi->devi_instance] = count();"
"}"
""
"sdt:::callout-start"
"/(caddr_t)((callout_t *)arg0)->c_func == (caddr_t)&`setrun/"
"{"
" this->thr = (kthread_t *)(((callout_t *)arg0)->c_arg);"
" @events_u[stringof(this->thr->t_procp->p_user.u_comm)] = count();"
"}"
""
"sdt:::callout-start"
"/(caddr_t)((callout_t *)arg0)->c_func != (caddr_t)&`setrun/"
"{"
" @events_k[(caddr_t)((callout_t *)arg0)->c_func] = count();"
"}"
""
"sdt:::cyclic-start"
"/(caddr_t)((cyclic_t *)arg0)->cy_handler == (caddr_t)&`clock/"
"{"
" @events_k[(caddr_t)((cyclic_t *)arg0)->cy_handler] = count();"
"}"
""
"fbt::xc_common:entry"
"{"
" self->xc_func = arg0;"
"}"
""
"sysinfo:::xcalls"
"/pid != $pid/"
"{"
" @events_x[execname, self->xc_func] = sum(arg0);"
"}"
""
"fbt::xc_common:return"
"/self->xc_func/"
"{"
" self->xc_func = 0;"
"}";
/*
* g_dtp_events_v is enabled through the -v option, it includes cyclic events
* in the report, allowing a complete view of system activity
*/
const char *g_dtp_events_v =
"interrupt-complete"
"/arg0 != NULL && arg3 !=0/"
"{"
" this->devi = (struct dev_info *)arg0;"
" @interrupts[stringof(`devnamesp[this->devi->devi_major].dn_name),"
" this->devi->devi_instance] = count();"
"}"
""
"sdt:::callout-start"
"/(caddr_t)((callout_t *)arg0)->c_func == (caddr_t)&`setrun/"
"{"
" this->thr = (kthread_t *)(((callout_t *)arg0)->c_arg);"
" @events_u[stringof(this->thr->t_procp->p_user.u_comm)] = count();"
"}"
""
"sdt:::callout-start"
"/(caddr_t)((callout_t *)arg0)->c_func != (caddr_t)&`setrun/"
"{"
" @events_k[(caddr_t)((callout_t *)arg0)->c_func] = count();"
"}"
""
"sdt:::cyclic-start"
"/(caddr_t)((cyclic_t *)arg0)->cy_handler != (caddr_t)&`dtrace_state_deadman &&"
" (caddr_t)((cyclic_t *)arg0)->cy_handler != (caddr_t)&`dtrace_state_clean/"
"{"
" @events_k[(caddr_t)((cyclic_t *)arg0)->cy_handler] = count();"
"}"
""
"fbt::xc_common:entry"
"{"
" self->xc_func = arg0;"
"}"
""
"sysinfo:::xcalls"
"/pid != $pid/"
"{"
" @events_x[execname, self->xc_func] = sum(arg0);"
"}"
""
"fbt::xc_common:return"
"/self->xc_func/"
"{"
" self->xc_func = 0;"
"}";
/*
* This script is selected through the -c option, it takes the CPU id as
* argument and observes activity generated by that CPU
*/
const char *g_dtp_events_c =
"interrupt-complete"
"/cpu == $0 &&"
" arg0 != NULL && arg3 != 0/"
"{"
" this->devi = (struct dev_info *)arg0;"
" @interrupts[stringof(`devnamesp[this->devi->devi_major].dn_name),"
" this->devi->devi_instance] = count();"
"}"
""
"sdt:::callout-start"
"/cpu == $0 &&"
" (caddr_t)((callout_t *)arg0)->c_func == (caddr_t)&`setrun/"
"{"
" this->thr = (kthread_t *)(((callout_t *)arg0)->c_arg);"
" @events_u[stringof(this->thr->t_procp->p_user.u_comm)] = count();"
"}"
""
"sdt:::callout-start"
"/cpu == $0 &&"
" (caddr_t)((callout_t *)arg0)->c_func != (caddr_t)&`setrun/"
"{"
" @events_k[(caddr_t)((callout_t *)arg0)->c_func] = count();"
"}"
""
"sdt:::cyclic-start"
"/cpu == $0 &&"
" (caddr_t)((cyclic_t *)arg0)->cy_handler == (caddr_t)&`clock/"
"{"
" @events_k[(caddr_t)((cyclic_t *)arg0)->cy_handler] = count();"
"}"
""
"fbt::xc_common:entry"
"/cpu == $0/"
"{"
" self->xc_func = arg0;"
"}"
""
"sysinfo:::xcalls"
"/pid != $pid &&"
" cpu == $0/"
"{"
" @events_x[execname, self->xc_func] = count();"
"}"
""
"fbt::xc_common:return"
"/cpu == $0 &&"
" self->xc_func/"
"{"
" self->xc_func = 0;"
"}"
""
"fbt::xc_common:entry"
"/cpu != $0/"
"{"
" self->xc_func = arg0;"
" self->xc_cpu = cpu;"
"}"
""
"fbt::send_dirint:entry"
"/pid != $pid &&"
" self->xc_func &&"
" arg0 == $0/"
"{"
" @events_xc[execname, self->xc_func, self->xc_cpu] = count();"
" self->xc_func = 0;"
" self->xc_cpu = 0;"
"}";
/*
* i386 platform specific display messages
*/
const char *g_msg_idle_state = "C-states (idle power states)";
const char *g_msg_freq_state = "P-states (frequencies)";