From: Thomas Renninger <trenn@suse.de>
Cc: linux-perf-users@vger.kernel.org, mingo@elte.hu,
arjan@linux.intel.com, lenb@kernel.org, j-pihet@ti.com,
Thomas Renninger <trenn@suse.de>,
linux-acpi@vger.kernel.org, linux-pm@lists.linux-foundation.org,
Frederic Weisbecker <fweisbec@gmail.com>,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org
Subject: [PATCH 4/9] cpuidle: Introduce .abbr (abbrevation) for cpuidle states
Date: Fri, 7 Jan 2011 11:29:45 +0100 [thread overview]
Message-ID: <1294396190-23031-5-git-send-email-trenn@suse.de> (raw)
In-Reply-To: <1294396190-23031-1-git-send-email-trenn@suse.de>
and fill name, description and newly introduced abbrevation
consistently (always use snprintf) in all cpuidle drivers.
This is mainly for perf timechart. It draws vector graphics
pictures of sleep/idle state usage catching perf cpu_idle events.
The string used for the idle state must not exceed 3 chars or
you can't see much in these pictures.
The name could get used in the title, the introduced abbrevations
inside of the picture and the text must therefore be rather short.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: lenb@kernel.org
CC: linux-acpi@vger.kernel.org
CC: linux-pm@lists.linux-foundation.org
CC: Arjan van de Ven <arjan@linux.intel.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: linux-kernel@vger.kernel.org
CC: linux-omap@vger.kernel.org
---
arch/arm/mach-at91/cpuidle.c | 12 ++++++++----
arch/arm/mach-davinci/cpuidle.c | 13 +++++++++----
arch/arm/mach-kirkwood/cpuidle.c | 12 ++++++++----
arch/arm/mach-omap2/cpuidle34xx.c | 3 ++-
arch/sh/kernel/cpu/shmobile/cpuidle.c | 19 +++++++++++--------
drivers/acpi/processor_idle.c | 3 +++
drivers/cpuidle/cpuidle.c | 1 +
drivers/cpuidle/sysfs.c | 3 +++
drivers/idle/intel_idle.c | 11 +++++++++++
include/linux/cpuidle.h | 2 ++
10 files changed, 58 insertions(+), 21 deletions(-)
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
index 1cfeac1..6cdeb42 100644
--- a/arch/arm/mach-at91/cpuidle.c
+++ b/arch/arm/mach-at91/cpuidle.c
@@ -73,16 +73,20 @@ static int at91_init_cpuidle(void)
device->states[0].exit_latency = 1;
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[0].name, "WFI");
- strcpy(device->states[0].desc, "Wait for interrupt");
+ snprintf(device->states[0].name, CPUIDLE_NAME_LEN, "WFI");
+ snprintf(device->states[0].desc, CPUIDLE_DESC_LEN,
+ "Wait for interrupt");
+ snprintf(device->states[0].abbr, CPUIDLE_ABBR_LEN, "W");
/* Wait for interrupt and RAM self refresh state */
device->states[1].enter = at91_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 10000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[1].name, "RAM_SR");
- strcpy(device->states[1].desc, "WFI and RAM Self Refresh");
+ snprintf(device->states[1].name, CPUIDLE_NAME_LEN, "RAM SR");
+ snprintf(device->states[1].desc, CPUIDLE_DESC_LEN,
+ "WFI and RAM Self Refresh");
+ snprintf(device->states[1].abbr, CPUIDLE_ABBR_LEN, "WSR");
if (cpuidle_register_device(device)) {
printk(KERN_ERR "at91_init_cpuidle: Failed registering\n");
diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index bd59f31..42ad2d6 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -127,16 +127,21 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
device->states[0].exit_latency = 1;
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[0].name, "WFI");
- strcpy(device->states[0].desc, "Wait for interrupt");
+ snprintf(device->states[0].name, CPUIDLE_NAME_LEN, "WFI");
+ snprintf(device->states[0].desc, CPUIDLE_DESC_LEN,
+ "Wait for interrupt");
+ snprintf(device->states[0].abbr, CPUIDLE_ABBR_LEN, "W");
/* Wait for interrupt and DDR self refresh state */
device->states[1].enter = davinci_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 10000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[1].name, "DDR SR");
- strcpy(device->states[1].desc, "WFI and DDR Self Refresh");
+ snprintf(device->states[1].name, CPUIDLE_NAME_LEN, "RAM SR");
+ snprintf(device->states[1].desc, CPUIDLE_DESC_LEN,
+ "WFI and RAM Self Refresh");
+ snprintf(device->states[1].abbr, CPUIDLE_ABBR_LEN, "WSR");
+
if (pdata->ddr2_pdown)
davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN;
cpuidle_set_statedata(&device->states[1], &davinci_states[1]);
diff --git a/arch/arm/mach-kirkwood/cpuidle.c b/arch/arm/mach-kirkwood/cpuidle.c
index f68d33f..48eaabb 100644
--- a/arch/arm/mach-kirkwood/cpuidle.c
+++ b/arch/arm/mach-kirkwood/cpuidle.c
@@ -75,16 +75,20 @@ static int kirkwood_init_cpuidle(void)
device->states[0].exit_latency = 1;
device->states[0].target_residency = 10000;
device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[0].name, "WFI");
- strcpy(device->states[0].desc, "Wait for interrupt");
+ snprintf(device->states[0].name, CPUIDLE_NAME_LEN, "WFI");
+ snprintf(device->states[0].desc, CPUIDLE_DESC_LEN,
+ "Wait for interrupt");
+ snprintf(device->states[0].abbr, CPUIDLE_ABBR_LEN, "W");
/* Wait for interrupt and DDR self refresh state */
device->states[1].enter = kirkwood_enter_idle;
device->states[1].exit_latency = 10;
device->states[1].target_residency = 10000;
device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
- strcpy(device->states[1].name, "DDR SR");
- strcpy(device->states[1].desc, "WFI and DDR Self Refresh");
+ snprintf(device->states[1].name, CPUIDLE_NAME_LEN, "RAM SR");
+ snprintf(device->states[1].desc, CPUIDLE_DESC_LEN,
+ "WFI and RAM Self Refresh");
+ snprintf(device->states[1].abbr, CPUIDLE_ABBR_LEN, "WSR");
if (cpuidle_register_device(device)) {
printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 0d50b45..a59ac39 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -496,7 +496,8 @@ int __init omap3_idle_init(void)
omap3_enter_idle_bm : omap3_enter_idle;
if (cx->type == OMAP3_STATE_C1)
dev->safe_state = state;
- sprintf(state->name, "C%d", count+1);
+ snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", count+1);
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "C%d", count+1);
count++;
}
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index 83972aa..9ad151d 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -75,8 +75,9 @@ void sh_mobile_setup_cpuidle(void)
i = CPUIDLE_DRIVER_STATE_START;
state = &dev->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C0");
- strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
+ snprintf(state->name, CPUIDLE_NAME_LEN, "SuperH");
+ snprintf(state->desc, CPUIDLE_DESC_LEN, "SuperH Sleep Mode");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "SH");
state->exit_latency = 1;
state->target_residency = 1 * 2;
state->power_usage = 3;
@@ -89,9 +90,10 @@ void sh_mobile_setup_cpuidle(void)
if (sh_mobile_sleep_supported & SUSP_SH_SF) {
state = &dev->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
- strncpy(state->desc, "SuperH Sleep Mode [SF]",
- CPUIDLE_DESC_LEN);
+ snprintf(state->name, CPUIDLE_NAME_LEN, "SuperH [SF]");
+ snprintf(state->desc, CPUIDLE_DESC_LEN,
+ "SuperH Sleep Mode [SF]");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "SHF");
state->exit_latency = 100;
state->target_residency = 1 * 2;
state->power_usage = 1;
@@ -102,9 +104,10 @@ void sh_mobile_setup_cpuidle(void)
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
state = &dev->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
- strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
- CPUIDLE_DESC_LEN);
+ snprintf(state->name, CPUIDLE_NAME_LEN, "SuperH Standby [SF]");
+ snprintf(state->desc, CPUIDLE_DESC_LEN,
+ "SuperH Mobile Standby Mode [SF]");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "SHS");
state->exit_latency = 2300;
state->target_residency = 1 * 2;
state->power_usage = 1;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 104ae77..b28693e 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1016,6 +1016,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
switch (cx->type) {
case ACPI_STATE_C1:
snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "C1");
state->flags |= CPUIDLE_FLAG_SHALLOW;
if (cx->entry_method == ACPI_CSTATE_FFH)
state->flags |= CPUIDLE_FLAG_TIME_VALID;
@@ -1026,6 +1027,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
case ACPI_STATE_C2:
snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "C2");
state->flags |= CPUIDLE_FLAG_BALANCED;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->enter = acpi_idle_enter_simple;
@@ -1034,6 +1036,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
case ACPI_STATE_C3:
snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "C3");
state->flags |= CPUIDLE_FLAG_DEEP;
state->flags |= CPUIDLE_FLAG_TIME_VALID;
state->flags |= CPUIDLE_FLAG_CHECK_BM;
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 4649495..b2d2b69 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -268,6 +268,7 @@ static void poll_idle_init(struct cpuidle_device *dev)
snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
+ snprintf(state->abbr, CPUIDLE_ABBR_LEN, "P");
state->exit_latency = 0;
state->target_residency = 0;
state->power_usage = -1;
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 0310ffa..ca7a62c 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -249,9 +249,11 @@ define_show_state_ull_function(usage)
define_show_state_ull_function(time)
define_show_state_str_function(name)
define_show_state_str_function(desc)
+define_show_state_str_function(abbr)
define_one_state_ro(name, show_state_name);
define_one_state_ro(desc, show_state_desc);
+define_one_state_ro(abbr, show_state_abbr);
define_one_state_ro(latency, show_state_exit_latency);
define_one_state_ro(power, show_state_power_usage);
define_one_state_ro(usage, show_state_usage);
@@ -260,6 +262,7 @@ define_one_state_ro(time, show_state_time);
static struct attribute *cpuidle_state_default_attrs[] = {
&attr_name.attr,
&attr_desc.attr,
+ &attr_abbr.attr,
&attr_latency.attr,
&attr_power.attr,
&attr_usage.attr,
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 60fa6ec..3bb1f2b 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -91,6 +91,7 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C1 */
.name = "NHM-C1",
.desc = "MWAIT 0x00",
+ .abbr = "C1",
.driver_data = (void *) 0x00,
.flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 3,
@@ -99,6 +100,7 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C2 */
.name = "NHM-C3",
.desc = "MWAIT 0x10",
+ .abbr = "C3",
.driver_data = (void *) 0x10,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 20,
@@ -107,6 +109,7 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C3 */
.name = "NHM-C6",
.desc = "MWAIT 0x20",
+ .abbr = "C6",
.driver_data = (void *) 0x20,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 200,
@@ -119,6 +122,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C1 */
.name = "SNB-C1",
.desc = "MWAIT 0x00",
+ .abbr = "C1",
.driver_data = (void *) 0x00,
.flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 1,
@@ -127,6 +131,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C2 */
.name = "SNB-C3",
.desc = "MWAIT 0x10",
+ .abbr = "C3",
.driver_data = (void *) 0x10,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 80,
@@ -135,6 +140,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C3 */
.name = "SNB-C6",
.desc = "MWAIT 0x20",
+ .abbr = "C6",
.driver_data = (void *) 0x20,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 104,
@@ -143,6 +149,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C4 */
.name = "SNB-C7",
.desc = "MWAIT 0x30",
+ .abbr = "C7",
.driver_data = (void *) 0x30,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 109,
@@ -155,6 +162,7 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C1 */
.name = "ATM-C1",
.desc = "MWAIT 0x00",
+ .abbr = "C1",
.driver_data = (void *) 0x00,
.flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 1,
@@ -163,6 +171,7 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C2 */
.name = "ATM-C2",
.desc = "MWAIT 0x10",
+ .abbr = "C2",
.driver_data = (void *) 0x10,
.flags = CPUIDLE_FLAG_TIME_VALID,
.exit_latency = 20,
@@ -172,6 +181,7 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C4 */
.name = "ATM-C4",
.desc = "MWAIT 0x30",
+ .abbr = "C4",
.driver_data = (void *) 0x30,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 100,
@@ -181,6 +191,7 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
{ /* MWAIT C6 */
.name = "ATM-C6",
.desc = "MWAIT 0x52",
+ .abbr = "C6",
.driver_data = (void *) 0x52,
.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 140,
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 1be416b..4763ef3 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -20,6 +20,7 @@
#define CPUIDLE_STATE_MAX 8
#define CPUIDLE_NAME_LEN 16
#define CPUIDLE_DESC_LEN 32
+#define CPUIDLE_ABBR_LEN 3
struct cpuidle_device;
@@ -31,6 +32,7 @@ struct cpuidle_device;
struct cpuidle_state {
char name[CPUIDLE_NAME_LEN];
char desc[CPUIDLE_DESC_LEN];
+ char abbr[CPUIDLE_ABBR_LEN];
void *driver_data;
unsigned int flags;
--
1.7.3.1
next prev parent reply other threads:[~2011-01-07 10:30 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-07 10:29 [PATCH 0/9] Make cpu_idle events architecture independent Thomas Renninger
2011-01-07 10:29 ` [PATCH 1/9] acpi: Use ACPI C-state type instead of enumeration value to export cpuidle state name Thomas Renninger
2011-01-07 20:45 ` Len Brown
2011-01-09 12:30 ` Thomas Renninger
2011-01-12 6:36 ` Len Brown
2011-01-12 12:33 ` Thomas Renninger
2011-01-12 22:41 ` Len Brown
2011-01-07 10:29 ` [PATCH 2/9] cpuidle: Rename X86 specific idle poll state[0] from C0 to POLL Thomas Renninger
2011-01-12 6:37 ` Len Brown
2011-01-07 10:29 ` [PATCH 3/9] X86/perf: fix power:cpu_idle double end events and throw cpu_idle events from the cpuidle layer Thomas Renninger
2011-01-12 6:42 ` Len Brown
2011-01-12 15:16 ` Thomas Renninger
2011-01-12 23:12 ` Len Brown
2011-01-07 10:29 ` Thomas Renninger [this message]
2011-01-07 21:23 ` [PATCH 4/9] cpuidle: Introduce .abbr (abbrevation) for cpuidle states Kevin Hilman
2011-01-12 6:56 ` Len Brown
2011-01-12 13:37 ` Thomas Renninger
2011-01-12 22:25 ` Len Brown
2011-01-12 23:39 ` Thomas Renninger
2011-01-13 15:42 ` Valdis.Kletnieks
2011-01-07 10:29 ` [PATCH 5/9] acpi: processor->cpuidle: Only set cpuidle check_bm flag if pr->flags.bm_check is set Thomas Renninger
2011-01-12 7:17 ` Len Brown
2011-01-12 7:30 ` [PATCH] ACPI: processor_idle: delete use of NOP CPUIDLE_FLAGs Len Brown
2011-01-12 7:37 ` [PATCH] cpuidle: delete NOP CPUIDLE_FLAG_POLL Len Brown
2011-01-12 8:00 ` [PATCH] SH, cpuidle: delete use of NOP CPUIDLE_FLAGS_SHALLOW Len Brown
2011-01-12 8:01 ` [PATCH] cpuidle: delete unused CPUIDLE_FLAG_SHALLOW, BALANCED, DEEP definitions Len Brown
2011-01-12 8:02 ` [PATCH] cpuidle: CPUIDLE_FLAG_TLB_FLUSHED is specific to intel_idle Len Brown
2011-01-12 8:04 ` [PATCH] cpuidle: CPUIDLE_FLAG_CHECK_BM is omap3_idle specific Len Brown
2011-01-07 10:29 ` [PATCH 6/9] perf (userspace): Fix variable clash with glibc time() func Thomas Renninger
2011-01-07 10:29 ` [PATCH 7/9] perf (userspace): Introduce --verbose param for perf timechart Thomas Renninger
2011-01-07 10:29 ` [PATCH 8/9] perf timechart: Map power:cpu_idle events to the corresponding cpuidle state Thomas Renninger
2011-01-07 10:52 ` Thomas Renninger
2011-01-07 10:29 ` [PATCH 9/9] perf: timechart: Fix memleak Thomas Renninger
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