linux-kernel - [PATCH 14/16] habanalabs/gaudi: define DC POWER for secured PMC

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Date:   Wed, 18 Aug 2021 16:39:20 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Subject: [PATCH 14/16] habanalabs/gaudi: define DC POWER for secured PMC

In secured mode, the CGM is disabled. Therefore, the DC power is
higher. Without taking it into consideration, the utilization is
12-15% at idle.

Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/gaudi/gaudi.c  | 6 +++++-
 drivers/misc/habanalabs/gaudi/gaudiP.h | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index c8bd76e30679..ba1fcdc16f50 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -506,7 +506,11 @@ static inline void set_default_power_values(struct hl_device *hdev)
 
 	if (hdev->card_type == cpucp_card_type_pmc) {
 		prop->max_power_default = MAX_POWER_DEFAULT_PMC;
-		prop->dc_power_default = DC_POWER_DEFAULT_PMC;
+
+		if (prop->fw_security_enabled)
+			prop->dc_power_default = DC_POWER_DEFAULT_PMC_SEC;
+		else
+			prop->dc_power_default = DC_POWER_DEFAULT_PMC;
 	} else {
 		prop->max_power_default = MAX_POWER_DEFAULT_PCI;
 		prop->dc_power_default = DC_POWER_DEFAULT_PCI;
diff --git a/drivers/misc/habanalabs/gaudi/gaudiP.h b/drivers/misc/habanalabs/gaudi/gaudiP.h
index 2f0928c0fa8f..7addb31e3eee 100644
--- a/drivers/misc/habanalabs/gaudi/gaudiP.h
+++ b/drivers/misc/habanalabs/gaudi/gaudiP.h
@@ -52,6 +52,8 @@
 #define DC_POWER_DEFAULT_PCI		60000		/* 60W */
 #define DC_POWER_DEFAULT_PMC		60000		/* 60W */
 
+#define DC_POWER_DEFAULT_PMC_SEC	97000		/* 97W */
+
 #define GAUDI_CPU_TIMEOUT_USEC		30000000	/* 30s */
 
 #define TPC_ENABLED_MASK		0xFF
-- 
2.17.1