[v2] platform/x86: Add support for improved performance mode

Message ID 20231113135741.4787-1-mpearson-lenovo@squebb.ca
State New
Headers
Series [v2] platform/x86: Add support for improved performance mode |

Commit Message

Mark Pearson Nov. 13, 2023, 1:57 p.m. UTC
  Some new Thinkpads have a new improved performance mode available.
Add support to make this mode usable.

To avoid having to create a new profile, just use the improved performance
mode in place of the existing performance mode, when available.

Tested on P14s AMD G4 AMD.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
---
Changes in v2: updated implementation for DYTC_UP_SUPPORT define

 drivers/platform/x86/thinkpad_acpi.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
  

Comments

Ilpo Järvinen Nov. 13, 2023, 2:20 p.m. UTC | #1
On Mon, 13 Nov 2023, Mark Pearson wrote:

> Some new Thinkpads have a new improved performance mode available.
> Add support to make this mode usable.
> 
> To avoid having to create a new profile, just use the improved performance
> mode in place of the existing performance mode, when available.
> 
> Tested on P14s AMD G4 AMD.
> 
> Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
> ---
> Changes in v2: updated implementation for DYTC_UP_SUPPORT define
> 
>  drivers/platform/x86/thinkpad_acpi.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index ad460417f901..ed8860caa9c1 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -10136,6 +10136,7 @@ static struct ibm_struct proxsensor_driver_data = {
>  
>  #define DYTC_CMD_SET          1 /* To enable/disable IC function mode */
>  #define DYTC_CMD_MMC_GET      8 /* To get current MMC function and mode */
> +#define DYTC_CMD_UP_CAP     0xA /* To get Ultra-performance capability */
>  #define DYTC_CMD_RESET    0x1ff /* To reset back to default */
>  
>  #define DYTC_CMD_FUNC_CAP     3 /* To get DYTC capabilities */
> @@ -10152,6 +10153,7 @@ static struct ibm_struct proxsensor_driver_data = {
>  
>  #define DYTC_FUNCTION_STD     0  /* Function = 0, standard mode */
>  #define DYTC_FUNCTION_CQL     1  /* Function = 1, lap mode */
> +#define DYTC_FUNCTION_TMS     9  /* Function = 9, TMS mode */
>  #define DYTC_FUNCTION_MMC     11 /* Function = 11, MMC mode */
>  #define DYTC_FUNCTION_PSC     13 /* Function = 13, PSC mode */
>  #define DYTC_FUNCTION_AMT     15 /* Function = 15, AMT mode */
> @@ -10163,11 +10165,14 @@ static struct ibm_struct proxsensor_driver_data = {
>  #define DYTC_MODE_MMC_LOWPOWER 3  /* Low power mode */
>  #define DYTC_MODE_MMC_BALANCE  0xF  /* Default mode aka balanced */
>  #define DYTC_MODE_MMC_DEFAULT  0  /* Default mode from MMC_GET, aka balanced */
> +#define DYTC_NOMODE            0xF  /* When Function does not have a mode */
>  
>  #define DYTC_MODE_PSC_LOWPOWER 3  /* Low power mode */
>  #define DYTC_MODE_PSC_BALANCE  5  /* Default mode aka balanced */
>  #define DYTC_MODE_PSC_PERFORM  7  /* High power mode aka performance */
>  
> +#define DYTC_UP_SUPPORT        8  /* Ultra-performance (TMS) mode support */

You forgot to add BIT() here. (But took it away from the other place 
so this patch is actually broken currently I think).

> +
>  #define DYTC_ERR_MASK       0xF  /* Bits 0-3 in cmd result are the error result */
>  #define DYTC_ERR_SUCCESS      1  /* CMD completed successful */
>  
> @@ -10185,6 +10190,7 @@ static enum platform_profile_option dytc_current_profile;
>  static atomic_t dytc_ignore_event = ATOMIC_INIT(0);
>  static DEFINE_MUTEX(dytc_mutex);
>  static int dytc_capabilities;
> +static bool dytc_ultraperf_cap; /* ultra performance capable */

I think the comment is repeating the same information already given in the 
variable name so just drop the comment.

>  static bool dytc_mmc_get_available;
>  static int profile_force;
>  
> @@ -10355,6 +10361,17 @@ static int dytc_profile_set(struct platform_profile_handler *pprof,
>  	if (err)
>  		goto unlock;
>  
> +	/* Set TMS mode appropriately (enable for performance), if available */
> +	if (dytc_ultraperf_cap) {
> +		int cmd;
> +
> +		cmd = DYTC_SET_COMMAND(DYTC_FUNCTION_TMS, DYTC_NOMODE,
> +				       profile == PLATFORM_PROFILE_PERFORMANCE);
> +		err = dytc_command(cmd, &output);
> +		if (err)
> +			return err;
> +	}
> +
>  	if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
>  		if (profile == PLATFORM_PROFILE_BALANCED) {
>  			/*
> @@ -10429,6 +10446,7 @@ static struct platform_profile_handler dytc_profile = {
>  static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  {
>  	int err, output;
> +	int cmd;
>  
>  	/* Setup supported modes */
>  	set_bit(PLATFORM_PROFILE_LOW_POWER, dytc_profile.choices);
> @@ -10484,6 +10502,16 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  		dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n");
>  		return -ENODEV;
>  	}
> +	err = dytc_command(DYTC_CMD_UP_CAP, &output);
> +	dytc_ultraperf_cap = output & DYTC_UP_SUPPORT ? true : false;

Assigning to bool doesn't require "? true : false" construct like I 
already mentioned, just drop that part.
  
Mark Pearson Nov. 13, 2023, 3:12 p.m. UTC | #2
On Mon, Nov 13, 2023, at 9:20 AM, Ilpo Järvinen wrote:
> On Mon, 13 Nov 2023, Mark Pearson wrote:
>
>> Some new Thinkpads have a new improved performance mode available.
>> Add support to make this mode usable.
>> 
>> To avoid having to create a new profile, just use the improved performance
>> mode in place of the existing performance mode, when available.
>> 
>> Tested on P14s AMD G4 AMD.
>> 
>> Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
>> ---
>> Changes in v2: updated implementation for DYTC_UP_SUPPORT define
>> 
>>  drivers/platform/x86/thinkpad_acpi.c | 28 ++++++++++++++++++++++++++++
>>  1 file changed, 28 insertions(+)
>> 
>> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
>> index ad460417f901..ed8860caa9c1 100644
>> --- a/drivers/platform/x86/thinkpad_acpi.c
>> +++ b/drivers/platform/x86/thinkpad_acpi.c
>> @@ -10136,6 +10136,7 @@ static struct ibm_struct proxsensor_driver_data = {
>>  
>>  #define DYTC_CMD_SET          1 /* To enable/disable IC function mode */
>>  #define DYTC_CMD_MMC_GET      8 /* To get current MMC function and mode */
>> +#define DYTC_CMD_UP_CAP     0xA /* To get Ultra-performance capability */
>>  #define DYTC_CMD_RESET    0x1ff /* To reset back to default */
>>  
>>  #define DYTC_CMD_FUNC_CAP     3 /* To get DYTC capabilities */
>> @@ -10152,6 +10153,7 @@ static struct ibm_struct proxsensor_driver_data = {
>>  
>>  #define DYTC_FUNCTION_STD     0  /* Function = 0, standard mode */
>>  #define DYTC_FUNCTION_CQL     1  /* Function = 1, lap mode */
>> +#define DYTC_FUNCTION_TMS     9  /* Function = 9, TMS mode */
>>  #define DYTC_FUNCTION_MMC     11 /* Function = 11, MMC mode */
>>  #define DYTC_FUNCTION_PSC     13 /* Function = 13, PSC mode */
>>  #define DYTC_FUNCTION_AMT     15 /* Function = 15, AMT mode */
>> @@ -10163,11 +10165,14 @@ static struct ibm_struct proxsensor_driver_data = {
>>  #define DYTC_MODE_MMC_LOWPOWER 3  /* Low power mode */
>>  #define DYTC_MODE_MMC_BALANCE  0xF  /* Default mode aka balanced */
>>  #define DYTC_MODE_MMC_DEFAULT  0  /* Default mode from MMC_GET, aka balanced */
>> +#define DYTC_NOMODE            0xF  /* When Function does not have a mode */
>>  
>>  #define DYTC_MODE_PSC_LOWPOWER 3  /* Low power mode */
>>  #define DYTC_MODE_PSC_BALANCE  5  /* Default mode aka balanced */
>>  #define DYTC_MODE_PSC_PERFORM  7  /* High power mode aka performance */
>>  
>> +#define DYTC_UP_SUPPORT        8  /* Ultra-performance (TMS) mode support */
>
> You forgot to add BIT() here. (But took it away from the other place 
> so this patch is actually broken currently I think).
>
Oh....that's odd. I definitely added it (and tested it)...so I'm not sure how I messed that up in the actual commit :(

Apologies - I'll re-post with it corrected.

>> +
>>  #define DYTC_ERR_MASK       0xF  /* Bits 0-3 in cmd result are the error result */
>>  #define DYTC_ERR_SUCCESS      1  /* CMD completed successful */
>>  
>> @@ -10185,6 +10190,7 @@ static enum platform_profile_option dytc_current_profile;
>>  static atomic_t dytc_ignore_event = ATOMIC_INIT(0);
>>  static DEFINE_MUTEX(dytc_mutex);
>>  static int dytc_capabilities;
>> +static bool dytc_ultraperf_cap; /* ultra performance capable */
>
> I think the comment is repeating the same information already given in the 
> variable name so just drop the comment.
Ack

Mark
  

Patch

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index ad460417f901..ed8860caa9c1 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10136,6 +10136,7 @@  static struct ibm_struct proxsensor_driver_data = {
 
 #define DYTC_CMD_SET          1 /* To enable/disable IC function mode */
 #define DYTC_CMD_MMC_GET      8 /* To get current MMC function and mode */
+#define DYTC_CMD_UP_CAP     0xA /* To get Ultra-performance capability */
 #define DYTC_CMD_RESET    0x1ff /* To reset back to default */
 
 #define DYTC_CMD_FUNC_CAP     3 /* To get DYTC capabilities */
@@ -10152,6 +10153,7 @@  static struct ibm_struct proxsensor_driver_data = {
 
 #define DYTC_FUNCTION_STD     0  /* Function = 0, standard mode */
 #define DYTC_FUNCTION_CQL     1  /* Function = 1, lap mode */
+#define DYTC_FUNCTION_TMS     9  /* Function = 9, TMS mode */
 #define DYTC_FUNCTION_MMC     11 /* Function = 11, MMC mode */
 #define DYTC_FUNCTION_PSC     13 /* Function = 13, PSC mode */
 #define DYTC_FUNCTION_AMT     15 /* Function = 15, AMT mode */
@@ -10163,11 +10165,14 @@  static struct ibm_struct proxsensor_driver_data = {
 #define DYTC_MODE_MMC_LOWPOWER 3  /* Low power mode */
 #define DYTC_MODE_MMC_BALANCE  0xF  /* Default mode aka balanced */
 #define DYTC_MODE_MMC_DEFAULT  0  /* Default mode from MMC_GET, aka balanced */
+#define DYTC_NOMODE            0xF  /* When Function does not have a mode */
 
 #define DYTC_MODE_PSC_LOWPOWER 3  /* Low power mode */
 #define DYTC_MODE_PSC_BALANCE  5  /* Default mode aka balanced */
 #define DYTC_MODE_PSC_PERFORM  7  /* High power mode aka performance */
 
+#define DYTC_UP_SUPPORT        8  /* Ultra-performance (TMS) mode support */
+
 #define DYTC_ERR_MASK       0xF  /* Bits 0-3 in cmd result are the error result */
 #define DYTC_ERR_SUCCESS      1  /* CMD completed successful */
 
@@ -10185,6 +10190,7 @@  static enum platform_profile_option dytc_current_profile;
 static atomic_t dytc_ignore_event = ATOMIC_INIT(0);
 static DEFINE_MUTEX(dytc_mutex);
 static int dytc_capabilities;
+static bool dytc_ultraperf_cap; /* ultra performance capable */
 static bool dytc_mmc_get_available;
 static int profile_force;
 
@@ -10355,6 +10361,17 @@  static int dytc_profile_set(struct platform_profile_handler *pprof,
 	if (err)
 		goto unlock;
 
+	/* Set TMS mode appropriately (enable for performance), if available */
+	if (dytc_ultraperf_cap) {
+		int cmd;
+
+		cmd = DYTC_SET_COMMAND(DYTC_FUNCTION_TMS, DYTC_NOMODE,
+				       profile == PLATFORM_PROFILE_PERFORMANCE);
+		err = dytc_command(cmd, &output);
+		if (err)
+			return err;
+	}
+
 	if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
 		if (profile == PLATFORM_PROFILE_BALANCED) {
 			/*
@@ -10429,6 +10446,7 @@  static struct platform_profile_handler dytc_profile = {
 static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
 {
 	int err, output;
+	int cmd;
 
 	/* Setup supported modes */
 	set_bit(PLATFORM_PROFILE_LOW_POWER, dytc_profile.choices);
@@ -10484,6 +10502,16 @@  static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
 		dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n");
 		return -ENODEV;
 	}
+	err = dytc_command(DYTC_CMD_UP_CAP, &output);
+	dytc_ultraperf_cap = output & DYTC_UP_SUPPORT ? true : false;
+	if (dytc_ultraperf_cap) {
+		pr_debug("TMS is supported\n");
+		/* Disable TMS by default - only use with performance mode */
+		cmd = DYTC_SET_COMMAND(DYTC_FUNCTION_TMS, DYTC_NOMODE, 0);
+		err = dytc_command(cmd, &output);
+		if (err)
+			return err;
+	}
 
 	dbg_printk(TPACPI_DBG_INIT,
 			"DYTC version %d: thermal mode available\n", dytc_version);