drm/radeon/kms: add dpm support for rv7xx (v4)
This adds dpm support for rv7xx asics. This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching
Set radeon.dpm=1 to enable.
v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/ppsmc.h b/drivers/gpu/drm/radeon/ppsmc.h
new file mode 100644
index 0000000..c85b96e
--- /dev/null
+++ b/drivers/gpu/drm/radeon/ppsmc.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2011 Advanced Micro Devices, Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 PP_SMC_H
+#define PP_SMC_H
+
+#pragma pack(push, 1)
+
+#define PPSMC_SWSTATE_FLAG_DC 0x01
+
+#define PPSMC_THERMAL_PROTECT_TYPE_INTERNAL 0x00
+#define PPSMC_THERMAL_PROTECT_TYPE_EXTERNAL 0x01
+#define PPSMC_THERMAL_PROTECT_TYPE_NONE 0xff
+
+#define PPSMC_SYSTEMFLAG_GPIO_DC 0x01
+#define PPSMC_SYSTEMFLAG_STEPVDDC 0x02
+#define PPSMC_SYSTEMFLAG_GDDR5 0x04
+#define PPSMC_SYSTEMFLAG_DISABLE_BABYSTEP 0x08
+#define PPSMC_SYSTEMFLAG_REGULATOR_HOT 0x10
+
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_MASK 0x07
+#define PPSMC_EXTRAFLAGS_AC2DC_DONT_WAIT_FOR_VBLANK 0x08
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_GOTODPMLOWSTATE 0x00
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_GOTOINITIALSTATE 0x01
+
+#define PPSMC_DISPLAY_WATERMARK_LOW 0
+#define PPSMC_DISPLAY_WATERMARK_HIGH 1
+
+#define PPSMC_STATEFLAG_AUTO_PULSE_SKIP 0x01
+
+#define PPSMC_Result_OK ((uint8_t)0x01)
+#define PPSMC_Result_Failed ((uint8_t)0xFF)
+
+typedef uint8_t PPSMC_Result;
+
+#define PPSMC_MSG_Halt ((uint8_t)0x10)
+#define PPSMC_MSG_Resume ((uint8_t)0x11)
+#define PPSMC_MSG_ZeroLevelsDisabled ((uint8_t)0x13)
+#define PPSMC_MSG_OneLevelsDisabled ((uint8_t)0x14)
+#define PPSMC_MSG_TwoLevelsDisabled ((uint8_t)0x15)
+#define PPSMC_MSG_EnableThermalInterrupt ((uint8_t)0x16)
+#define PPSMC_MSG_SwitchToSwState ((uint8_t)0x20)
+#define PPSMC_MSG_SwitchToInitialState ((uint8_t)0x40)
+#define PPSMC_MSG_NoForcedLevel ((uint8_t)0x41)
+#define PPSMC_MSG_SwitchToMinimumPower ((uint8_t)0x51)
+#define PPSMC_MSG_ResumeFromMinimumPower ((uint8_t)0x52)
+#define PPSMC_MSG_NoDisplay ((uint8_t)0x5D)
+#define PPSMC_MSG_HasDisplay ((uint8_t)0x5E)
+#define PPSMC_MSG_EnableULV ((uint8_t)0x62)
+#define PPSMC_MSG_DisableULV ((uint8_t)0x63)
+#define PPSMC_MSG_EnterULV ((uint8_t)0x64)
+#define PPSMC_MSG_ExitULV ((uint8_t)0x65)
+#define PPSMC_MSG_ResetToDefaults ((uint8_t)0x84)
+
+typedef uint8_t PPSMC_Msg;
+
+#pragma pack(pop)
+
+#endif