1 files changed, 76 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/include/drivers/mce.h b/plat/nvidia/tegra/include/drivers/mce.h
new file mode 100644
index 0000000..5f1bb4f
--- /dev/null
+++ b/plat/nvidia/tegra/include/drivers/mce.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MCE_H
+#define MCE_H
+
+#include <lib/mmio.h>
+
+#include <tegra_def.h>
+
+/*******************************************************************************
+ * MCE commands
+ ******************************************************************************/
+typedef enum mce_cmd {
+	MCE_CMD_ENTER_CSTATE = 0U,
+	MCE_CMD_UPDATE_CSTATE_INFO = 1U,
+	MCE_CMD_UPDATE_CROSSOVER_TIME = 2U,
+	MCE_CMD_READ_CSTATE_STATS = 3U,
+	MCE_CMD_WRITE_CSTATE_STATS = 4U,
+	MCE_CMD_IS_SC7_ALLOWED = 5U,
+	MCE_CMD_ONLINE_CORE = 6U,
+	MCE_CMD_CC3_CTRL = 7U,
+	MCE_CMD_ECHO_DATA = 8U,
+	MCE_CMD_READ_VERSIONS = 9U,
+	MCE_CMD_ENUM_FEATURES = 10U,
+	MCE_CMD_ROC_FLUSH_CACHE_TRBITS = 11U,
+	MCE_CMD_ENUM_READ_MCA = 12U,
+	MCE_CMD_ENUM_WRITE_MCA = 13U,
+	MCE_CMD_ROC_FLUSH_CACHE = 14U,
+	MCE_CMD_ROC_CLEAN_CACHE = 15U,
+	MCE_CMD_ENABLE_LATIC = 16U,
+	MCE_CMD_UNCORE_PERFMON_REQ = 17U,
+	MCE_CMD_MISC_CCPLEX = 18U,
+	MCE_CMD_IS_CCX_ALLOWED = 0xFEU,
+	MCE_CMD_MAX = 0xFFU,
+} mce_cmd_t;
+
+#define MCE_CMD_MASK				0xFFU
+
+/*******************************************************************************
+ * Timeout value used to powerdown a core
+ ******************************************************************************/
+#define MCE_CORE_SLEEP_TIME_INFINITE		0xFFFFFFFFU
+
+/*******************************************************************************
+ * Struct to prepare UPDATE_CSTATE_INFO request
+ ******************************************************************************/
+typedef struct mce_cstate_info {
+	/* cluster cstate value */
+	uint32_t cluster;
+	/* ccplex cstate value */
+	uint32_t ccplex;
+	/* system cstate value */
+	uint32_t system;
+	/* force system state? */
+	uint8_t system_state_force;
+	/* wake mask value */
+	uint32_t wake_mask;
+	/* update the wake mask? */
+	uint8_t update_wake_mask;
+} mce_cstate_info_t;
+
+/* public interfaces */
+int mce_command_handler(uint64_t cmd, uint64_t arg0, uint64_t arg1,
+		uint64_t arg2);
+int mce_update_reset_vector(void);
+int mce_update_gsc_videomem(void);
+int mce_update_gsc_tzdram(void);
+__dead2 void mce_enter_ccplex_state(uint32_t state_idx);
+void mce_update_cstate_info(const mce_cstate_info_t *cstate);
+void mce_verify_firmware_version(void);
+
+#endif /* MCE_H */