gpu: nvgpu: construct/load tabels & set voltage

- Read voltage tables from VBIOS & construct
  then send to PMU.
- compare & set voltage based on
  mclk/gpc2clk clk, take higher voltage
  between two & set.

JIRA DNVGPU-122

Change-Id: I23e7b101a3b1c1b6596620fc6b8319c70bd9a488
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1224365
(cherry picked from commit e0055c3ec798b8312df3fa9bf92bde8c57c6f58c)
Reviewed-on: http://git-master/r/1244657
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/pstate/pstate.c b/drivers/gpu/nvgpu/pstate/pstate.c
index f4cc50ab..a4787f35 100644
--- a/drivers/gpu/nvgpu/pstate/pstate.c
+++ b/drivers/gpu/nvgpu/pstate/pstate.c
@@ -29,6 +29,18 @@ int gk20a_init_pstate_support(struct gk20a *g)
 
         gk20a_dbg_fn("");
 
+        err = volt_rail_sw_setup(g);
+        if (err)
+                return err;
+
+        err = volt_dev_sw_setup(g);
+        if (err)
+                return err;
+
+        err = volt_policy_sw_setup(g);
+        if (err)
+                return err;
+
         err = clk_vin_sw_setup(g);
         if (err)
                 return err;
@@ -72,6 +84,26 @@ int gk20a_init_pstate_pmu_support(struct gk20a *g)
 
         gk20a_dbg_fn("");
 
+        err = volt_rail_pmu_setup(g);
+        if (err)
+                return err;
+
+        err = volt_dev_pmu_setup(g);
+        if (err)
+                return err;
+
+        err = volt_policy_pmu_setup(g);
+        if (err)
+                return err;
+
+        err = volt_pmu_send_load_cmd_to_pmu(g);
+        if (err) {
+                gk20a_err(dev_from_gk20a(g),
+                        "Failed to send VOLT LOAD CMD to PMU: status = 0x%08x.",
+                        err);
+                return err;
+        }
+
         err = vfe_var_pmu_setup(g);
         if (err)
                 return err;