[PATCH 6/6] accel/ivpu: Implement D0i2 disable test mode

[Jacek Lawrynowicz]

From: Karol Wachowski <karol.wachowski at intel.com>

Add power_profile firmware boot param and set it to 0 by default
which is default FW power profile.

Implement IVPU_TEST_MODE_D0I2_DISABLE which is used for setting
power profile boot param value to 1 which prevents NPU from entering
d0i2 power state.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski at intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
---
 drivers/accel/ivpu/ivpu_drv.h | 2 ++
 drivers/accel/ivpu/ivpu_fw.c  | 4 ++++
 drivers/accel/ivpu/ivpu_hw.c  | 4 ++++
 3 files changed, 10 insertions(+)

diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h
index 73d808068c8b7..92753effb1c99 100644
--- a/drivers/accel/ivpu/ivpu_drv.h
+++ b/drivers/accel/ivpu/ivpu_drv.h
@@ -111,6 +111,7 @@ struct ivpu_wa_table {
 	bool disable_clock_relinquish;
 	bool disable_d0i3_msg;
 	bool wp0_during_power_up;
+	bool disable_d0i2;
 };
 
 struct ivpu_hw_info;
@@ -208,6 +209,7 @@ extern bool ivpu_force_snoop;
 #define IVPU_TEST_MODE_TURBO		  BIT(9)
 #define IVPU_TEST_MODE_CLK_RELINQ_DISABLE BIT(10)
 #define IVPU_TEST_MODE_CLK_RELINQ_ENABLE  BIT(11)
+#define IVPU_TEST_MODE_D0I2_DISABLE       BIT(12)
 extern int ivpu_test_mode;
 
 struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);
diff --git a/drivers/accel/ivpu/ivpu_fw.c b/drivers/accel/ivpu/ivpu_fw.c
index cfe8f79ec5a6f..7a1bb92d8c816 100644
--- a/drivers/accel/ivpu/ivpu_fw.c
+++ b/drivers/accel/ivpu/ivpu_fw.c
@@ -534,6 +534,8 @@ static void ivpu_fw_boot_params_print(struct ivpu_device *vdev, struct vpu_boot_
 		 boot_params->d0i3_entry_vpu_ts);
 	ivpu_dbg(vdev, FW_BOOT, "boot_params.system_time_us = %llu\n",
 		 boot_params->system_time_us);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.power_profile = %u\n",
+		 boot_params->power_profile);
 }
 
 void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params *boot_params)
@@ -634,6 +636,8 @@ void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params
 		boot_params->d0i3_delayed_entry = 1;
 	boot_params->d0i3_residency_time_us = 0;
 	boot_params->d0i3_entry_vpu_ts = 0;
+	if (IVPU_WA(disable_d0i2))
+		boot_params->power_profile = 1;
 
 	boot_params->system_time_us = ktime_to_us(ktime_get_real());
 	wmb(); /* Flush WC buffers after writing bootparams */
diff --git a/drivers/accel/ivpu/ivpu_hw.c b/drivers/accel/ivpu/ivpu_hw.c
index 4d9f30e3b505d..ec9a3629da3a9 100644
--- a/drivers/accel/ivpu/ivpu_hw.c
+++ b/drivers/accel/ivpu/ivpu_hw.c
@@ -77,11 +77,15 @@ static void wa_init(struct ivpu_device *vdev)
 	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)
 		vdev->wa.wp0_during_power_up = true;
 
+	if (ivpu_test_mode & IVPU_TEST_MODE_D0I2_DISABLE)
+		vdev->wa.disable_d0i2 = true;
+
 	IVPU_PRINT_WA(punit_disabled);
 	IVPU_PRINT_WA(clear_runtime_mem);
 	IVPU_PRINT_WA(interrupt_clear_with_0);
 	IVPU_PRINT_WA(disable_clock_relinquish);
 	IVPU_PRINT_WA(wp0_during_power_up);
+	IVPU_PRINT_WA(disable_d0i2);
 }
 
 static void timeouts_init(struct ivpu_device *vdev)
-- 
2.45.1