t19x: mce: add mce driver

This patch adds the initial driver for sw interface with the
mts/mce in t19x. The driver provides api's and debugfs nodes
for interaction with the mts/mce.

JIRA TPM-1062

Change-Id: I4a682457a8e28e9b8db2a6a370a756f0d0524830
Signed-off-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Reviewed-on: http://git-master/r/1280452
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/t19x_mce.h b/include/linux/t19x_mce.h
new file mode 100644
index 000000000..fcd611d94
--- /dev/null
+++ b/include/linux/t19x_mce.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _LINUX_TEGRA_MCE_H
+#define _LINUX_TEGRA_MCE_H
+
+#define NVG_STAT_MAX_ENTRIES    5
+
+int t19x_mce_enter_cstate(u32 state, u32 wake_time);
+int t19x_mce_update_cstate_info(u32 cluster, u32 ccplex,
+        u32 system, u8 force, u32 wake_mask, bool valid);
+int t19x_mce_update_crossover_time(u32 type, u32 time);
+int t19x_mce_read_cstate_stats(u32 state, u32 *stats);
+int t19x_mce_write_cstate_stats(u32 state, u32 stats);
+int t19x_mce_is_sc7_allowed(u32 state, u32 wake, u32 *allowed);
+int t19x_mce_online_core(int cpu);
+int t19x_mce_cc3_ctrl(u32 freq, u32 volt, u8 enable);
+int t19x_mce_echo_data(u32 data, int *matched);
+int t19x_mce_read_versions(u32 *major, u32 *minor);
+int t19x_mce_enum_features(u64 *features);
+
+#endif