1 files changed, 63 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/pstate/pstate.h b/drivers/gpu/nvgpu/pstate/pstate.h
new file mode 100644
index 00000000..af0956e8
--- /dev/null
+++ b/drivers/gpu/nvgpu/pstate/pstate.h
@@ -0,0 +1,63 @@
+/*
+ * general p state 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 __PSTATE_H__
+#define __PSTATE_H__
+
+#include "gk20a/gk20a.h"
+#include "clk/clk.h"
+
+#define CTRL_PERF_PSTATE_TYPE_3X        0x3
+
+#define CTRL_PERF_PSTATE_P0             0
+#define CTRL_PERF_PSTATE_P5             5
+#define CTRL_PERF_PSTATE_P8             8
+
+#define CLK_SET_INFO_MAX_SIZE           (32)
+
+struct clk_set_info {
+        enum nv_pmu_clk_clkwhich clkwhich;
+        u32 nominal_mhz;
+        u32 min_mhz;
+        u32 max_mhz;
+};
+
+struct clk_set_info_list {
+        u32 num_info;
+        struct clk_set_info clksetinfo[CLK_SET_INFO_MAX_SIZE];
+};
+
+struct pstate {
+        struct boardobj super;
+        u32 num;
+        u8 lpwr_entry_idx;
+        struct clk_set_info_list clklist;
+};
+
+struct pstates {
+        struct boardobjgrp_e32 super;
+        u32  num_levels;
+        wait_queue_head_t pstate_notifier_wq;
+        u32 is_pstate_switch_on;
+        struct mutex pstate_mutex; /* protect is_pstate_switch_on */
+};
+
+int gk20a_init_pstate_support(struct gk20a *g);
+int gk20a_init_pstate_pmu_support(struct gk20a *g);
+
+struct clk_set_info *pstate_get_clk_set_info(struct gk20a *g, u32 pstate_num,
+                enum nv_pmu_clk_clkwhich clkwhich);
+struct pstate *pstate_find(struct gk20a *g, u32 num);
+
+#endif /* __PSTATE_H__ */