diff mbox

[11/15] OMAP3: powerdomain data: add wake-up latency figures

Message ID 1313502198-9298-12-git-send-email-j-pihet@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jean Pihet Aug. 16, 2011, 1:43 p.m. UTC
From: Jean Pihet <j-pihet@ti.com>

Figures are added to the power domains structs.

Note: the figures are preliminary figures. More accurate measurements
are needed. Also the conditions of measurements shall be investigated
and described.

Tested on OMAP3 Beagleboard in RET/OFF using wake-up latency constraints
on MPU, CORE and PER.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
---
 arch/arm/mach-omap2/powerdomains3xxx_data.c |   77 +++++++++++++++++++++++++++
 1 files changed, 77 insertions(+), 0 deletions(-)

Comments

Santosh Shilimkar Aug. 16, 2011, 2:25 p.m. UTC | #1
On Tuesday 16 August 2011 07:13 PM, jean.pihet@newoldbits.com wrote:
> From: Jean Pihet<j-pihet@ti.com>
>
> Figures are added to the power domains structs.
>
> Note: the figures are preliminary figures. More accurate measurements
> are needed. Also the conditions of measurements shall be investigated
> and described.
>
> Tested on OMAP3 Beagleboard in RET/OFF using wake-up latency constraints
> on MPU, CORE and PER.
>
> Signed-off-by: Jean Pihet<j-pihet@ti.com>
> ---
>   arch/arm/mach-omap2/powerdomains3xxx_data.c |   77 +++++++++++++++++++++++++++
>   1 files changed, 77 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
> index 469a920..64446e7 100644
> --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
> +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
> @@ -31,6 +31,13 @@
>
>   /*
>    * Powerdomains
> + *
> + * The wakeup_lat values are derived from measurements on
> + * the actual target.
> + *
> + * Note: the latency figures are preliminary and only used
> + * for the constraints framework validation.
> + * Actual figures and measurements conditions shall be added.
>    */
>
>   static struct powerdomain iva2_pwrdm = {
> @@ -52,6 +59,13 @@ static struct powerdomain iva2_pwrdm = {
>   		[2] = PWRSTS_OFF_ON,
>   		[3] = PWRSTS_ON,
>   	},
> +	.wakeup_lat = {
> +		[PWRDM_FUNC_PWRST_OFF] = 1100,
> +		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
> +		[PWRDM_FUNC_PWRST_CSWR] = 350,
> +		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
This can easily derived from the PWRST flag instead of hardcoding
it this way. Also note that INACTIVE PD isn't supported in mainline
yet because of voltage-domain dependency planned changes.

> +		[PWRDM_FUNC_PWRST_ON] = 0,

All of the PD structures are manually coded. This whole file is
auto-generated and even these field generation needs to follow
that path.
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Jean Pihet Aug. 16, 2011, 2:34 p.m. UTC | #2
On Tue, Aug 16, 2011 at 4:25 PM, Santosh <santosh.shilimkar@ti.com> wrote:
> On Tuesday 16 August 2011 07:13 PM, jean.pihet@newoldbits.com wrote:
>>
>> From: Jean Pihet<j-pihet@ti.com>
>>
>> Figures are added to the power domains structs.
>>
>> Note: the figures are preliminary figures. More accurate measurements
>> are needed. Also the conditions of measurements shall be investigated
>> and described.
>>
>> Tested on OMAP3 Beagleboard in RET/OFF using wake-up latency constraints
>> on MPU, CORE and PER.
>>
>> Signed-off-by: Jean Pihet<j-pihet@ti.com>
>> ---
>>  arch/arm/mach-omap2/powerdomains3xxx_data.c |   77
>> +++++++++++++++++++++++++++
>>  1 files changed, 77 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> index 469a920..64446e7 100644
>> --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> @@ -31,6 +31,13 @@
>>
>>  /*
>>   * Powerdomains
>> + *
>> + * The wakeup_lat values are derived from measurements on
>> + * the actual target.
>> + *
>> + * Note: the latency figures are preliminary and only used
>> + * for the constraints framework validation.
>> + * Actual figures and measurements conditions shall be added.
>>   */
>>
>>  static struct powerdomain iva2_pwrdm = {
>> @@ -52,6 +59,13 @@ static struct powerdomain iva2_pwrdm = {
>>                [2] = PWRSTS_OFF_ON,
>>                [3] = PWRSTS_ON,
>>        },
>> +       .wakeup_lat = {
>> +               [PWRDM_FUNC_PWRST_OFF] = 1100,
>> +               [PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
>> +               [PWRDM_FUNC_PWRST_CSWR] = 350,
>> +               [PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
>
> This can easily derived from the PWRST flag instead of hardcoding
> it this way. Also note that INACTIVE PD isn't supported in mainline
> yet because of voltage-domain dependency planned changes.
>
>> +               [PWRDM_FUNC_PWRST_ON] = 0,
>
> All of the PD structures are manually coded. This whole file is
> auto-generated and even these field generation needs to follow
> that path.
Ok I need to check that. Any pointer on how to generate those?

Jean
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Santosh Shilimkar Aug. 16, 2011, 2:37 p.m. UTC | #3
On Tuesday 16 August 2011 08:04 PM, Jean Pihet wrote:
> On Tue, Aug 16, 2011 at 4:25 PM, Santosh<santosh.shilimkar@ti.com>  wrote:
>> On Tuesday 16 August 2011 07:13 PM, jean.pihet@newoldbits.com wrote:
>>>
>>> From: Jean Pihet<j-pihet@ti.com>
>>>
>>> Figures are added to the power domains structs.
>>>
>>> Note: the figures are preliminary figures. More accurate measurements
>>> are needed. Also the conditions of measurements shall be investigated
>>> and described.
>>>
>>> Tested on OMAP3 Beagleboard in RET/OFF using wake-up latency constraints
>>> on MPU, CORE and PER.
>>>
>>> Signed-off-by: Jean Pihet<j-pihet@ti.com>
>>> ---
>>>   arch/arm/mach-omap2/powerdomains3xxx_data.c |   77
>>> +++++++++++++++++++++++++++
>>>   1 files changed, 77 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>>> b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>>> index 469a920..64446e7 100644
>>> --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>>> +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>>> @@ -31,6 +31,13 @@
>>>
>>>   /*
>>>    * Powerdomains
>>> + *
>>> + * The wakeup_lat values are derived from measurements on
>>> + * the actual target.
>>> + *
>>> + * Note: the latency figures are preliminary and only used
>>> + * for the constraints framework validation.
>>> + * Actual figures and measurements conditions shall be added.
>>>    */
>>>
>>>   static struct powerdomain iva2_pwrdm = {
>>> @@ -52,6 +59,13 @@ static struct powerdomain iva2_pwrdm = {
>>>                 [2] = PWRSTS_OFF_ON,
>>>                 [3] = PWRSTS_ON,
>>>         },
>>> +       .wakeup_lat = {
>>> +               [PWRDM_FUNC_PWRST_OFF] = 1100,
>>> +               [PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
>>> +               [PWRDM_FUNC_PWRST_CSWR] = 350,
>>> +               [PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
>>
>> This can easily derived from the PWRST flag instead of hardcoding
>> it this way. Also note that INACTIVE PD isn't supported in mainline
>> yet because of voltage-domain dependency planned changes.
>>
>>> +               [PWRDM_FUNC_PWRST_ON] = 0,
>>
>> All of the PD structures are manually coded. This whole file is
>> auto-generated and even these field generation needs to follow
>> that path.
> Ok I need to check that. Any pointer on how to generate those?
>
The scripts needs to be updated to generate this additional information.
Will send you some pointer off the list.

Regards
Santosh
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diff mbox

Patch

diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
index 469a920..64446e7 100644
--- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
@@ -31,6 +31,13 @@ 
 
 /*
  * Powerdomains
+ *
+ * The wakeup_lat values are derived from measurements on
+ * the actual target.
+ *
+ * Note: the latency figures are preliminary and only used
+ * for the constraints framework validation.
+ * Actual figures and measurements conditions shall be added.
  */
 
 static struct powerdomain iva2_pwrdm = {
@@ -52,6 +59,13 @@  static struct powerdomain iva2_pwrdm = {
 		[2] = PWRSTS_OFF_ON,
 		[3] = PWRSTS_ON,
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 1100,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 350,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain mpu_3xxx_pwrdm = {
@@ -68,6 +82,13 @@  static struct powerdomain mpu_3xxx_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_OFF_ON,
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 95,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 45,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 /*
@@ -98,6 +119,13 @@  static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
 		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
 		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 100,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 60,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain core_3xxx_es3_1_pwrdm = {
@@ -121,6 +149,13 @@  static struct powerdomain core_3xxx_es3_1_pwrdm = {
 		[0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
 		[1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 100,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 60,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain dss_pwrdm = {
@@ -136,6 +171,13 @@  static struct powerdomain dss_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_ON,  /* MEMONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 70,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 20,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 /*
@@ -157,6 +199,13 @@  static struct powerdomain sgx_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_ON,  /* MEMONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 1000,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain cam_pwrdm = {
@@ -172,6 +221,13 @@  static struct powerdomain cam_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_ON,  /* MEMONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 850,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 35,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain per_pwrdm = {
@@ -187,6 +243,13 @@  static struct powerdomain per_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_ON,  /* MEMONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 200,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 110,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain emu_pwrdm = {
@@ -201,6 +264,13 @@  static struct powerdomain neon_pwrdm = {
 	.omap_chip	  = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
 	.pwrsts		  = PWRSTS_OFF_RET_ON,
 	.pwrsts_logic_ret = PWRSTS_RET,
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 200,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 35,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain usbhost_pwrdm = {
@@ -223,6 +293,13 @@  static struct powerdomain usbhost_pwrdm = {
 	.pwrsts_mem_on	  = {
 		[0] = PWRSTS_ON,  /* MEMONSTATE */
 	},
+	.wakeup_lat = {
+		[PWRDM_FUNC_PWRST_OFF] = 800,
+		[PWRDM_FUNC_PWRST_OSWR] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_CSWR] = 150,
+		[PWRDM_FUNC_PWRST_INACTIVE] = UNSUP_STATE,
+		[PWRDM_FUNC_PWRST_ON] = 0,
+	},
 };
 
 static struct powerdomain dpll1_pwrdm = {