cpufreq: Add support for Guest VM

with this changes, guest VM will be able to set/get the CPU
frequencies of the CPUs guest owns.
Guest cpufreq driver will interface with the cpufreq server
which is part of bpmp server.

ESLC-1617

Change-Id: I3a4d14ec444a106a8136d3ef271f54c2b5cc5aff
Signed-off-by: sreenivasulu velpula <svelpula@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1685271
Reviewed-by: Bo Yan <byan@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Nitin Sehgal <nsehgal@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vipin Kumar <vipink@nvidia.com>
Reviewed-by: Sandeep Trasi <strasi@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/tegra-cpufreq.h b/include/linux/tegra-cpufreq.h
index 3a2a2fb9a..4563da02d 100644
--- a/include/linux/tegra-cpufreq.h
+++ b/include/linux/tegra-cpufreq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2018, 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,
@@ -20,12 +20,15 @@
 enum tegra_cpufreq_msg_ids {
         TEGRA_CPU_FREQ_THROTTLE,
         TEGRA_CPU_FREQ_SET_RATE,
+        TEGRA_CPU_FREQ_GET_RATE,
         MAX_IVC_MSG_ID,
 };
 
-int tegra_cpufreq_tx_ivc_msg(uint32_t id, uint32_t len, void *msg_buf);
 int parse_hv_dt_data(struct device_node *dn);
+int parse_t194_cpufreq_hv_dt(struct device_node *dn);
 bool hv_is_set_speed_supported(void);
 void tegra_update_cpu_speed_hv(uint32_t rate, uint8_t cpu);
+uint32_t t194_get_cpu_speed_hv(uint32_t cpu);
+void t194_update_cpu_speed_hv(uint32_t rate, uint32_t cpu);
 
 #endif