Commit 023a25b0 authored by Shyam Sundar S K's avatar Shyam Sundar S K Committed by Hans de Goede
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platform/x86/amd/pmf: Add support for notifying Smart PC Solution updates 



The APMF function 14 (Notify Smart PC Solution Updates) allows the BIOS
(AMD/OEM) to be informed about the outputs of custom Smart PC policies.
Enhance the PMF driver to invoke APMF function 14 when these custom policy
outputs are triggered.

Co-developed-by: default avatarPatil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: default avatarPatil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20240812131839.308768-1-Shyam-sundar.S-k@amd.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent e35ee8ee

drivers/platform/x86/amd/pmf/acpi.c

+31 −0
Original line number Diff line number Diff line
@@ -282,6 +282,29 @@ int apmf_update_fan_idx(struct amd_pmf_dev *pdev, bool manual, u32 idx) 
	return 0;

}



static int apmf_notify_smart_pc_update(struct amd_pmf_dev *pdev, u32 val, u32 preq, u32 index)

{

	struct amd_pmf_notify_smart_pc_update args;

	struct acpi_buffer params;

	union acpi_object *info;



	args.size = sizeof(args);

	args.pending_req = preq;

	args.custom_bios[index] = val;



	params.length = sizeof(args);

	params.pointer = &args;



	info = apmf_if_call(pdev, APMF_FUNC_NOTIFY_SMART_PC_UPDATES, &params);

	if (!info)

		return -EIO;



	kfree(info);

	dev_dbg(pdev->dev, "Notify smart pc update, val: %u\n", val);



	return 0;

}



int apmf_get_auto_mode_def(struct amd_pmf_dev *pdev, struct apmf_auto_mode *data)

{

	return apmf_if_call_store_buffer(pdev, APMF_FUNC_AUTO_MODE, data, sizeof(*data));
@@ -447,6 +470,14 @@ int apmf_check_smart_pc(struct amd_pmf_dev *pmf_dev) 
	return 0;

}



int amd_pmf_smartpc_apply_bios_output(struct amd_pmf_dev *dev, u32 val, u32 preq, u32 idx)

{

	if (!is_apmf_func_supported(dev, APMF_FUNC_NOTIFY_SMART_PC_UPDATES))

		return -EINVAL;



	return apmf_notify_smart_pc_update(dev, val, preq, idx);

}



void apmf_acpi_deinit(struct amd_pmf_dev *pmf_dev)

{

	acpi_handle ahandle = ACPI_HANDLE(pmf_dev->dev);

drivers/platform/x86/amd/pmf/pmf.h

+18 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ struct cookie_header { 
#define APMF_FUNC_STATIC_SLIDER_GRANULAR       9

#define APMF_FUNC_DYN_SLIDER_AC				11

#define APMF_FUNC_DYN_SLIDER_DC				12

#define APMF_FUNC_NOTIFY_SMART_PC_UPDATES		14

#define APMF_FUNC_SBIOS_HEARTBEAT_V2			16



/* Message Definitions */
@@ -82,7 +83,17 @@ struct cookie_header { 
#define PMF_POLICY_STT_SKINTEMP_APU				7

#define PMF_POLICY_STT_SKINTEMP_HS2				8

#define PMF_POLICY_SYSTEM_STATE					9

#define PMF_POLICY_BIOS_OUTPUT_1				10

#define PMF_POLICY_BIOS_OUTPUT_2				11

#define PMF_POLICY_P3T						38

#define PMF_POLICY_BIOS_OUTPUT_3				57

#define PMF_POLICY_BIOS_OUTPUT_4				58

#define PMF_POLICY_BIOS_OUTPUT_5				59

#define PMF_POLICY_BIOS_OUTPUT_6				60

#define PMF_POLICY_BIOS_OUTPUT_7				61

#define PMF_POLICY_BIOS_OUTPUT_8				62

#define PMF_POLICY_BIOS_OUTPUT_9				63

#define PMF_POLICY_BIOS_OUTPUT_10				64



/* TA macros */

#define PMF_TA_IF_VERSION_MAJOR				1
@@ -344,6 +355,12 @@ struct os_power_slider { 
	u8 slider_event;

} __packed;



struct amd_pmf_notify_smart_pc_update {

	u16 size;

	u32 pending_req;

	u32 custom_bios[10];

} __packed;



struct fan_table_control {

	bool manual;

	unsigned long fan_id;
@@ -717,6 +734,7 @@ extern const struct attribute_group cnqf_feature_attribute_group; 
int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev);

void amd_pmf_deinit_smart_pc(struct amd_pmf_dev *dev);

int apmf_check_smart_pc(struct amd_pmf_dev *pmf_dev);

int amd_pmf_smartpc_apply_bios_output(struct amd_pmf_dev *dev, u32 val, u32 preq, u32 idx);



/* Smart PC - TA interfaces */

void amd_pmf_populate_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in);

drivers/platform/x86/amd/pmf/tee-if.c

+40 −0
Original line number Diff line number Diff line
@@ -160,6 +160,46 @@ static void amd_pmf_apply_policies(struct amd_pmf_dev *dev, struct ta_pmf_enact_ 
			dev_dbg(dev->dev, "update SYSTEM_STATE: %s\n",

				amd_pmf_uevent_as_str(val));

			break;



		case PMF_POLICY_BIOS_OUTPUT_1:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(0), 0);

			break;



		case PMF_POLICY_BIOS_OUTPUT_2:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(1), 1);

			break;



		case PMF_POLICY_BIOS_OUTPUT_3:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(2), 2);

			break;



		case PMF_POLICY_BIOS_OUTPUT_4:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(3), 3);

			break;



		case PMF_POLICY_BIOS_OUTPUT_5:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(4), 4);

			break;



		case PMF_POLICY_BIOS_OUTPUT_6:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(5), 5);

			break;



		case PMF_POLICY_BIOS_OUTPUT_7:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(6), 6);

			break;



		case PMF_POLICY_BIOS_OUTPUT_8:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(7), 7);

			break;



		case PMF_POLICY_BIOS_OUTPUT_9:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(8), 8);

			break;



		case PMF_POLICY_BIOS_OUTPUT_10:

			amd_pmf_smartpc_apply_bios_output(dev, val, BIT(9), 9);

			break;

		}

	}

}