gpu: nvgpu: Add thermal module support

The following CL contains the following VBIOS thermal table parsing
and PMU interface support.
1) Thermal device table
2) Thermal channel table

JIRA DNVGPU-130

Change-Id: I3c1baca3fec2727b6d20aa6c007096372a6a3efe
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: http://git-master/r/1240631
(cherry picked from commit 1d6fa9ab49b1c84e7f845de206821d879cbda356)
Reviewed-on: http://git-master/r/1246204
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

5 files changed, 105 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/ctrl/ctrltherm.h b/drivers/gpu/nvgpu/ctrl/ctrltherm.h
new file mode 100644
index 00000000..af6984c1
--- /dev/null
+++ b/drivers/gpu/nvgpu/ctrl/ctrltherm.h
@@ -0,0 +1,24 @@
+/*
+ * Control thermal infrastructure
+ *
+ * Copyright (c) 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,
+ * 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.
+ */
+#ifndef _ctrltherm_h_
+#define _ctrltherm_h_
+
+#include "ctrlboardobj.h"
+
+#define CTRL_THERMAL_THERM_DEVICE_CLASS_GPU                             0x01
+
+#define CTRL_THERMAL_THERM_CHANNEL_CLASS_DEVICE                         0x01
+
+#endif
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index ec4597a8..43f673f5 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -58,6 +58,7 @@ struct acr_desc;
 #include "clk/clk.h"
 #include "perf/perf.h"
 #include "pmgr/pmgr.h"
+#include "therm/thrm.h"
 #endif
 #include "gm206/bios_gm206.h"
 
@@ -793,6 +794,7 @@ struct gk20a {
         struct clk_pmupstate clk_pmu;
         struct perf_pmupstate perf_pmu;
         struct pmgr_pmupstate pmgr_pmu;
+        struct therm_pmupstate therm_pmu;
 #endif
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
index 18f68558..c31bd187 100644
--- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
@@ -181,6 +181,7 @@ struct pmu_ucode_desc_v1 {
 #define PMU_UNIT_RC             (0x1F)
 #define PMU_UNIT_FECS_MEM_OVERRIDE      (0x1E)
 #define PMU_UNIT_CLK             (0x0D)
+#define PMU_UNIT_THERM           (0x14)
 #define PMU_UNIT_PMGR            (0x18)
 #define PMU_UNIT_VOLT            (0x0E)
 
diff --git a/drivers/gpu/nvgpu/gm206/bios_gm206.h b/drivers/gpu/nvgpu/gm206/bios_gm206.h
index 53b82485..1d813df5 100644
--- a/drivers/gpu/nvgpu/gm206/bios_gm206.h
+++ b/drivers/gpu/nvgpu/gm206/bios_gm206.h
@@ -40,6 +40,7 @@ enum {
         POWER_SENSORS_TABLE = 0xA,
         POWER_CAPPING_TABLE = 0xB,
         POWER_TOPOLOGY_TABLE = 0xF,
+        THERMAL_CHANNEL_TABLE = 0x12,
         VOLTAGE_RAIL_TABLE = 26,
         VOLTAGE_DEVICE_TABLE,
         VOLTAGE_POLICY_TABLE,
diff --git a/drivers/gpu/nvgpu/pmuif/gpmuifthermsensor.h b/drivers/gpu/nvgpu/pmuif/gpmuifthermsensor.h
new file mode 100644
index 00000000..498661b3
--- /dev/null
+++ b/drivers/gpu/nvgpu/pmuif/gpmuifthermsensor.h
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 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,
+* 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.
+*/
+
+#ifndef _GPMUIFTHERMSENSOR_H_
+#define _GPMUIFTHERMSENSOR_H_
+
+#include "gk20a/gk20a.h"
+#include "gk20a/pmu_gk20a.h"
+#include "ctrl/ctrltherm.h"
+#include "pmuif/gpmuifboardobj.h"
+#include "gk20a/pmu_common.h"
+
+#define NV_PMU_THERM_BOARDOBJGRP_CLASS_ID_THERM_DEVICE      0x00
+#define NV_PMU_THERM_BOARDOBJGRP_CLASS_ID_THERM_CHANNEL     0x01
+
+#define NV_PMU_THERM_CMD_ID_BOARDOBJ_GRP_SET                         0x0000000B
+#define NV_PMU_THERM_MSG_ID_BOARDOBJ_GRP_SET                        0x00000008
+
+struct nv_pmu_therm_therm_device_boardobjgrp_set_header {
+        struct nv_pmu_boardobjgrp_e32 super;
+};
+
+struct nv_pmu_therm_therm_device_boardobj_set {
+        struct nv_pmu_boardobj super;
+};
+
+struct nv_pmu_therm_therm_device_i2c_boardobj_set {
+        struct nv_pmu_therm_therm_device_boardobj_set super;
+        u8 i2c_dev_idx;
+};
+
+union nv_pmu_therm_therm_device_boardobj_set_union {
+        struct nv_pmu_boardobj board_obj;
+        struct nv_pmu_therm_therm_device_boardobj_set therm_device;
+        struct nv_pmu_therm_therm_device_i2c_boardobj_set i2c;
+};
+
+NV_PMU_BOARDOBJ_GRP_SET_MAKE_E32(therm, therm_device);
+
+struct nv_pmu_therm_therm_channel_boardobjgrp_set_header {
+        struct nv_pmu_boardobjgrp_e32 super;
+};
+
+struct nv_pmu_therm_therm_channel_boardobj_set {
+        struct nv_pmu_boardobj super;
+        s16 scaling;
+        s16 offset;
+        s32 temp_min;
+        s32 temp_max;
+};
+
+struct nv_pmu_therm_therm_channel_device_boardobj_set {
+        struct nv_pmu_therm_therm_channel_boardobj_set super;
+        u8 therm_dev_idx;
+        u8 therm_dev_prov_idx;
+};
+
+union nv_pmu_therm_therm_channel_boardobj_set_union {
+        struct nv_pmu_boardobj board_obj;
+        struct nv_pmu_therm_therm_channel_boardobj_set therm_channel;
+        struct nv_pmu_therm_therm_channel_device_boardobj_set device;
+};
+
+NV_PMU_BOARDOBJ_GRP_SET_MAKE_E32(therm, therm_channel);
+
+#endif
+