gpu: nvgpu: Add PMU thermal RPC for WARN_TEMP

Added PMU thermal slct RPC handling for WARN_TEMP threshold
configuration.

JIRA DNVGPU-130

Change-Id: I5011db5f08476516f72722e639838e968e7e60dd
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: http://git-master/r/1242132
(cherry picked from commit 6e87a23ca04be435107da801c15f7b55a1f45e8b)
Reviewed-on: http://git-master/r/1246211
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

3 files changed, 77 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 43f673f5..7699cd53 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -969,6 +969,9 @@ struct gk20a {
         /* PCIe power states. */
         bool xve_l0s;
         bool xve_l1;
+
+        /* Current warning temp in sfxp24.8 */
+        s32 curr_warn_temp;
 };
 
 static inline unsigned long gk20a_get_gr_idle_timeout(struct gk20a *g)
diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
index c31bd187..6ec0067b 100644
--- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
@@ -28,6 +28,7 @@
 #include "pmuif/gpmuifperf.h"
 #include "pmuif/gpmuifpmgr.h"
 #include "pmuif/gpmuifvolt.h"
+#include "pmuif/gpmuiftherm.h"
 
 /* defined by pmu hw spec */
 #define GK20A_PMU_VA_SIZE               (512 * 1024 * 1024)
@@ -365,6 +366,7 @@ struct pmu_cmd {
                 struct nv_pmu_volt_cmd volt;
                 struct nv_pmu_clk_cmd clk;
                 struct nv_pmu_pmgr_cmd pmgr;
+                struct nv_pmu_therm_cmd therm;
         } cmd;
 };
 
@@ -382,6 +384,7 @@ struct pmu_msg {
                 struct nv_pmu_volt_msg volt;
                 struct nv_pmu_clk_msg clk;
                 struct nv_pmu_pmgr_msg pmgr;
+                struct nv_pmu_therm_msg therm;
         } msg;
 };
 
diff --git a/drivers/gpu/nvgpu/pmuif/gpmuiftherm.h b/drivers/gpu/nvgpu/pmuif/gpmuiftherm.h
new file mode 100644
index 00000000..9c10e93c
--- /dev/null
+++ b/drivers/gpu/nvgpu/pmuif/gpmuiftherm.h
@@ -0,0 +1,71 @@
+/*
+* 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 _GPMUIFTHERM_H_
+#define _GPMUIFTHERM_H_
+
+#include "gk20a/pmu_common.h"
+
+#define NV_PMU_THERM_CMD_ID_RPC                                      0x00000002
+#define NV_PMU_THERM_MSG_ID_RPC                                      0x00000002
+#define NV_PMU_THERM_RPC_ID_SLCT_EVENT_TEMP_TH_SET                   0x00000006
+#define NV_PMU_THERM_EVENT_THERMAL_1                                 0x00000004
+
+struct nv_pmu_therm_rpc_slct_event_temp_th_set {
+        s32 temp_threshold;
+        u8 event_id;
+        flcn_status flcn_stat;
+};
+
+struct nv_pmu_therm_rpc {
+        u8 function;
+        bool b_supported;
+        union {
+                struct nv_pmu_therm_rpc_slct_event_temp_th_set slct_event_temp_th_set;
+        } params;
+};
+
+struct nv_pmu_therm_cmd_rpc {
+        u8 cmd_type;
+        u8 pad[3];
+        struct nv_pmu_allocation request;
+};
+
+#define NV_PMU_THERM_CMD_RPC_ALLOC_OFFSET       \
+        offsetof(struct nv_pmu_therm_cmd_rpc, request)
+
+struct nv_pmu_therm_cmd {
+        union {
+                u8 cmd_type;
+                struct nv_pmu_therm_cmd_rpc rpc;
+        };
+};
+
+struct nv_pmu_therm_msg_rpc {
+        u8 msg_type;
+        u8 rsvd[3];
+        struct nv_pmu_allocation response;
+};
+
+#define NV_PMU_THERM_MSG_RPC_ALLOC_OFFSET       \
+        offsetof(struct nv_pmu_therm_msg_rpc, response)
+
+struct nv_pmu_therm_msg {
+        union {
+                u8 msg_type;
+                struct nv_pmu_therm_msg_rpc rpc;
+        };
+};
+
+#endif
+