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From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
To: <hdegoede@redhat.com>, <markgross@kernel.org>,
	<ilpo.jarvinen@linux.intel.com>, <basavaraj.natikar@amd.com>,
	<jikos@kernel.org>, <benjamin.tissoires@redhat.com>
Cc: <Patil.Reddy@amd.com>, <mario.limonciello@amd.com>,
	<platform-driver-x86@vger.kernel.org>,
	<linux-input@vger.kernel.org>,
	"Shyam Sundar S K" <Shyam-sundar.S-k@amd.com>
Subject: [PATCH v7 07/12] platform/x86/amd/pmf: Add support update p3t limit
Date: Tue, 12 Dec 2023 07:17:00 +0530	[thread overview]
Message-ID: <20231212014705.2017474-8-Shyam-sundar.S-k@amd.com> (raw)
In-Reply-To: <20231212014705.2017474-1-Shyam-sundar.S-k@amd.com>

P3T (Peak Package Power Limit) is a metric within the SMU controller
that can influence the power limits. Add support from the driver
to update P3T limits accordingly.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
 drivers/platform/x86/amd/pmf/pmf.h    | 3 +++
 drivers/platform/x86/amd/pmf/tee-if.c | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
index 4da51eb28b6f..37bf1c701361 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -49,6 +49,7 @@
 #define GET_STT_MIN_LIMIT	0x1F
 #define GET_STT_LIMIT_APU	0x20
 #define GET_STT_LIMIT_HS2	0x21
+#define SET_P3T				0x23 /* P3T: Peak Package Power Limit */
 
 /* OS slider update notification */
 #define DC_BEST_PERF		0
@@ -72,6 +73,7 @@
 #define PMF_POLICY_STT_MIN					6
 #define PMF_POLICY_STT_SKINTEMP_APU				7
 #define PMF_POLICY_STT_SKINTEMP_HS2				8
+#define PMF_POLICY_P3T						38
 
 /* TA macros */
 #define PMF_TA_IF_VERSION_MAJOR				1
@@ -481,6 +483,7 @@ struct pmf_action_table {
 	u32 stt_minlimit;	/* in mW */
 	u32 stt_skintemp_apu;	/* in C */
 	u32 stt_skintemp_hs2;	/* in C */
+	u32 p3t_limit;		/* 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 e96db406e91b..bf8cb98d41ec 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -105,6 +105,14 @@ static void amd_pmf_apply_policies(struct amd_pmf_dev *dev, struct ta_pmf_enact_
 				dev->prev_data->stt_skintemp_hs2 = val;
 			}
 			break;
+
+		case PMF_POLICY_P3T:
+			if (dev->prev_data->p3t_limit != val) {
+				amd_pmf_send_cmd(dev, SET_P3T, false, val, NULL);
+				dev_dbg(dev->dev, "update P3T: %u\n", val);
+				dev->prev_data->p3t_limit = val;
+			}
+			break;
 		}
 	}
 }
-- 
2.25.1


  parent reply	other threads:[~2023-12-12  1:48 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-12  1:46 [PATCH v7 00/12] Introduce PMF Smart PC Solution Builder Feature Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 01/12] platform/x86/amd/pmf: Add PMF TEE interface Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 02/12] platform/x86/amd/pmf: Add support for PMF-TA interaction Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 03/12] platform/x86/amd/pmf: Change return type of amd_pmf_set_dram_addr() Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 04/12] platform/x86/amd/pmf: Add support for PMF Policy Binary Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 05/12] platform/x86/amd/pmf: change amd_pmf_init_features() call sequence Shyam Sundar S K
2023-12-12  1:46 ` [PATCH v7 06/12] platform/x86/amd/pmf: Add support to get inputs from other subsystems Shyam Sundar S K
2023-12-12  1:47 ` Shyam Sundar S K [this message]
2023-12-12  1:47 ` [PATCH v7 08/12] platform/x86/amd/pmf: Add support to update system state Shyam Sundar S K
2023-12-12  1:47 ` [PATCH v7 09/12] platform/x86/amd/pmf: Make source_as_str() as non-static Shyam Sundar S K
2023-12-12  1:47 ` [PATCH v7 10/12] platform/x86/amd/pmf: Add facility to dump TA inputs Shyam Sundar S K
2023-12-12  1:47 ` [PATCH v7 11/12] platform/x86/amd/pmf: Add capability to sideload of policy binary Shyam Sundar S K
2023-12-18 11:58   ` Hans de Goede
2023-12-12  1:47 ` [PATCH v7 12/12] platform/x86/amd/pmf: dump policy binary data Shyam Sundar S K
2023-12-18 12:05 ` [PATCH v7 00/12] Introduce PMF Smart PC Solution Builder Feature Hans de Goede

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