gpu: nvgpu: gp10b: enable gradual slowdown

Enable gradual slowdown for gp10b and also correct
thermal slowdown factors with extended mode.

Bug 1719974

Change-Id: I31a5d7df71c98135273a980c49b70bc76fac0b40
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/933279
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 46 insertions, 7 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/therm_gp10b.c b/drivers/gpu/nvgpu/gp10b/therm_gp10b.c
index 471edb87..7bf0c0e5 100644
--- a/drivers/gpu/nvgpu/gp10b/therm_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/therm_gp10b.c
@@ -3,7 +3,7 @@
  *
  * GP10B Therm
  *
- * Copyright (c) 2015, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2016, 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,
@@ -20,6 +20,8 @@
 
 static int gp10b_init_therm_setup_hw(struct gk20a *g)
 {
+        u32 v;
+
         gk20a_dbg_fn("");
 
         /* program NV_THERM registers */
@@ -27,14 +29,51 @@ static int gp10b_init_therm_setup_hw(struct gk20a *g)
                                         therm_use_a_ext_therm_1_enable_f()  |
                                         therm_use_a_ext_therm_2_enable_f());
         gk20a_writel(g, therm_evt_ext_therm_0_r(),
-                therm_evt_ext_therm_0_slow_factor_f(
-                        therm_evt_ext_therm_0_slow_factor_init_v()));
+                therm_evt_ext_therm_0_slow_factor_f(0x2));
         gk20a_writel(g, therm_evt_ext_therm_1_r(),
-                therm_evt_ext_therm_1_slow_factor_f(
-                        therm_evt_ext_therm_1_slow_factor_init_v()));
+                therm_evt_ext_therm_1_slow_factor_f(0x6));
         gk20a_writel(g, therm_evt_ext_therm_2_r(),
-                therm_evt_ext_therm_2_slow_factor_f(
-                        therm_evt_ext_therm_2_slow_factor_init_v()));
+                therm_evt_ext_therm_2_slow_factor_f(0xe));
+
+        gk20a_writel(g, therm_grad_stepping_table_r(0),
+                therm_grad_stepping_table_slowdown_factor0_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by1p5_f()) |
+                therm_grad_stepping_table_slowdown_factor1_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by2_f()) |
+                therm_grad_stepping_table_slowdown_factor2_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by4_f()) |
+                therm_grad_stepping_table_slowdown_factor3_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()) |
+                therm_grad_stepping_table_slowdown_factor4_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()));
+
+        gk20a_writel(g, therm_grad_stepping_table_r(1),
+                therm_grad_stepping_table_slowdown_factor0_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()) |
+                therm_grad_stepping_table_slowdown_factor1_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()) |
+                therm_grad_stepping_table_slowdown_factor2_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()) |
+                therm_grad_stepping_table_slowdown_factor3_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()) |
+                therm_grad_stepping_table_slowdown_factor4_f(
+                therm_grad_stepping_table_slowdown_factor0_fpdiv_by8_f()));
+
+        v = gk20a_readl(g, therm_clk_timing_r(0));
+        v |= therm_clk_timing_grad_slowdown_enabled_f();
+        gk20a_writel(g, therm_clk_timing_r(0), v);
+
+        v = gk20a_readl(g, therm_config2_r());
+        v |= therm_config2_grad_enable_f(1);
+        v |= therm_config2_slowdown_factor_extended_f(1);
+        gk20a_writel(g, therm_config2_r(), v);
+
+        gk20a_writel(g, therm_grad_stepping1_r(),
+                        therm_grad_stepping1_pdiv_duration_f(32));
+
+        v = gk20a_readl(g, therm_grad_stepping0_r());
+        v |= therm_grad_stepping0_feature_enable_f();
+        gk20a_writel(g, therm_grad_stepping0_r(), v);
 
         return 0;
 }