gpu: nvgpu: update thermal programming

Add required fileds and values for thermal slow-down
settings in thermal header file and implemented chip
specific thermal register programming

Reviewed-on: http://git-master/r/822199
(cherry picked from commit 9e8a745b8295af002b9780c83caa8dc7b22cc737)

Change-Id: I016b18ed230fa6c104eada2e166ccd1a5f2ace36
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/823012
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/therm_gm20b.c b/drivers/gpu/nvgpu/gm20b/therm_gm20b.c
new file mode 100644
index 00000000..ed1e0f49
--- /dev/null
+++ b/drivers/gpu/nvgpu/gm20b/therm_gm20b.c
@@ -0,0 +1,72 @@
+/*
+ * GM20B THERMAL
+ *
+ * Copyright (c) 2015, 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.
+ */
+
+#include "gk20a/gk20a.h"
+#include "hw_therm_gm20b.h"
+
+static int gm20b_init_therm_setup_hw(struct gk20a *g)
+{
+        u32 v;
+
+        gk20a_dbg_fn("");
+
+        /* program NV_THERM registers */
+        gk20a_writel(g, therm_use_a_r(), therm_use_a_ext_therm_0_enable_f() |
+                        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(1));
+        gk20a_writel(g, therm_evt_ext_therm_1_r(),
+                        therm_evt_ext_therm_1_slow_factor_f(2));
+        gk20a_writel(g, therm_evt_ext_therm_2_r(),
+                        therm_evt_ext_therm_2_slow_factor_f(3));
+
+        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;
+}
+
+void gm20b_init_therm_ops(struct gpu_ops *gops)
+{
+        gops->therm.init_therm_setup_hw = gm20b_init_therm_setup_hw;
+
+}