1 files changed, 74 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..55726d55
--- /dev/null
+++ b/drivers/gpu/nvgpu/pstate/pstate.h
@@ -0,0 +1,74 @@
+/*
+ * general p state infrastructure
+ *
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __PSTATE_H__
+#define __PSTATE_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 gk20a;
+
+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;
+        struct nvgpu_cond pstate_notifier_wq;
+        u32 is_pstate_switch_on;
+        struct nvgpu_mutex pstate_mutex; /* protect is_pstate_switch_on */
+};
+
+int gk20a_init_pstate_support(struct gk20a *g);
+void gk20a_deinit_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__ */