gpu: nvgpu: gv10x volt policy boardobj changes

- Added support for single rail multi step volt policy & below
  are the list of define & struct added/updated to support same.
   CTRL_VOLT_POLICY_TYPE_SINGLE_RAIL_MULTI_STEP 0x04,
   NV_VBIOS_VOLTAGE_POLICY_1X_ENTRY_TYPE_SINGLE_RAIL_MULTI_STEP 0x04,
   Updated struct vbios_voltage_policy_table_1x_entry,
   struct nv_pmu_volt_volt_policy_sr_multi_step_boardobj_set, this holds
     members which help to config single rail multi step like delay
     between switch step, ramp up & ramp down step size in uv.
- Added case to support SINGLE_RAIL_MULTI_STEP in
  volt_volt_policy_construct() based on boardobj type.
- Added case to support SINGLE_RAIL_MULTI_STEP in
  volt_get_volt_policy_table() to read data from VBIOS
  table vbios_voltage_policy_table_1x_entry & extract to
  voltage_policy_single_rail_multi_step.
- Added methods to forward single rail multi step data to
  PMU using below methods by assigning data read from
  VBIOS voltage_policy_single_rail_multi_step to
  nv_pmu_volt_volt_policy_sr_multi_step_boardobj_set
  interface.
    volt_construct_volt_policy_single_rail_multi_step()
    volt_policy_pmu_data_init_sr_multi_step()
    volt_policy_pmu_data_init_single_rail()
    construct_volt_policy_single_rail()

Change-Id: I17bc8c320777191611365ee63274c38ffe5ecbf7
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1660687
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/volt/volt_policy.h b/drivers/gpu/nvgpu/volt/volt_policy.h
index 8db79218..34c8f0f6 100644
--- a/drivers/gpu/nvgpu/volt/volt_policy.h
+++ b/drivers/gpu/nvgpu/volt/volt_policy.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+* Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.
 *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -68,6 +68,13 @@ struct voltage_policy_single_rail {
         u8 rail_idx;
 };
 
+struct voltage_policy_single_rail_multi_step {
+        struct voltage_policy_single_rail super;
+        u16 inter_switch_delay_us;
+        u32 ramp_up_step_size_uv;
+        u32 ramp_down_step_size_uv;
+};
+
 u32 volt_policy_sw_setup(struct gk20a *g);
 u32 volt_policy_pmu_setup(struct gk20a *g);
 #endif