accel/ivpu: Add test modes to toggle clock relinquish disable

Add IVPU_TEST_MODE_CLK_RELINQ_[DISABLE|ENABLE] that overrides
workaround for disabling clock relinquish for testing purposes.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-6-jacek.lawrynowicz@linux.intel.com

Author: kwachows

drivers/accel/ivpu/ivpu_drv.h

@@ -206,6 +206,8 @@ extern bool ivpu_force_snoop;
 #define IVPU_TEST_MODE_MIP_DISABLE        BIT(6)
 #define IVPU_TEST_MODE_DISABLE_TIMEOUTS   BIT(8)
 #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)
 extern int ivpu_test_mode;
 
 struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);

drivers/accel/ivpu/ivpu_hw.c

@@ -68,6 +68,12 @@ static void wa_init(struct ivpu_device *vdev)
 	    ivpu_revision(vdev) < IVPU_HW_IP_REV_LNL_B0)
 		vdev->wa.disable_clock_relinquish = true;
 
+	if (ivpu_test_mode & IVPU_TEST_MODE_CLK_RELINQ_ENABLE)
+		vdev->wa.disable_clock_relinquish = false;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_CLK_RELINQ_DISABLE)
+		vdev->wa.disable_clock_relinquish = true;
+
 	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)
 		vdev->wa.wp0_during_power_up = true;