From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date: Mon, 1 Sep 2025 11:01:32 +0000 (+0530)
Subject: platform/x86/amd/pmf: Add support for adjusting PMF PPT and PPT APU thresholds
X-Git-Tag: v6.18-rc1~82^2~41
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f10ea2df9e4d28964e2a02abaf32100953885989;p=thirdparty%2Fkernel%2Flinux.git

platform/x86/amd/pmf: Add support for adjusting PMF PPT and PPT APU thresholds

The most recent PMF Trusted Application includes enhanced features that
allow for modifications to PMF thermal parameters such as PPT and PPT APU.

This update introduces the necessary driver support to utilize these
capabilities.

Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Tested-by: Yijun Shen <Yijun.Shen@Dell.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20250901110140.2519072-2-Shyam-sundar.S-k@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---

diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
index 45b60238d5277..1a5a8d70c360a 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -93,6 +93,8 @@ struct cookie_header {
 #define PMF_POLICY_BIOS_OUTPUT_1				10
 #define PMF_POLICY_BIOS_OUTPUT_2				11
 #define PMF_POLICY_P3T						38
+#define PMF_POLICY_PMF_PPT					54
+#define PMF_POLICY_PMF_PPT_APU_ONLY				55
 #define PMF_POLICY_BIOS_OUTPUT_3				57
 #define PMF_POLICY_BIOS_OUTPUT_4				58
 #define PMF_POLICY_BIOS_OUTPUT_5				59
@@ -677,6 +679,8 @@ struct pmf_action_table {
 	u32 stt_skintemp_apu;	/* in C */
 	u32 stt_skintemp_hs2;	/* in C */
 	u32 p3t_limit;		/* in mW */
+	u32 pmf_ppt;		/* in mW */
+	u32 pmf_ppt_apu_only;	/* in mW */
 };
 
 /* Input conditions */
diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index 4f626ebcb6197..b29f92183b2af 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -147,6 +147,22 @@ static void amd_pmf_apply_policies(struct amd_pmf_dev *dev, struct ta_pmf_enact_
 			}
 			break;
 
+		case PMF_POLICY_PMF_PPT:
+			if (dev->prev_data->pmf_ppt != val) {
+				amd_pmf_send_cmd(dev, SET_PMF_PPT, false, val, NULL);
+				dev_dbg(dev->dev, "update PMF PPT: %u\n", val);
+				dev->prev_data->pmf_ppt = val;
+			}
+			break;
+
+		case PMF_POLICY_PMF_PPT_APU_ONLY:
+			if (dev->prev_data->pmf_ppt_apu_only != val) {
+				amd_pmf_send_cmd(dev, SET_PMF_PPT_APU_ONLY, false, val, NULL);
+				dev_dbg(dev->dev, "update PMF PPT APU ONLY: %u\n", val);
+				dev->prev_data->pmf_ppt_apu_only = val;
+			}
+			break;
+
 		case PMF_POLICY_SYSTEM_STATE:
 			switch (val) {
 			case 0: