drm/amd/powerplay: add CG and PG support for carrizo

This adds clock and powergating support for CZ.

v2: squash in fixes

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 140 insertions, 6 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h b/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
index 26e12563f4b1..a69b3798e6ad 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hardwaremanager.h
@@ -23,7 +23,12 @@
 #ifndef _HARDWARE_MANAGER_H_
 #define _HARDWARE_MANAGER_H_
 
+
+
 struct pp_hwmgr;
+struct pp_hw_power_state;
+struct pp_power_state;
+enum amd_dpm_forced_level;
 
 /* Automatic Power State Throttling */
 enum PHM_AutoThrottleSource
@@ -206,6 +211,24 @@ struct pp_hw_descriptor {
 	uint32_t hw_caps[PHM_MAX_NUM_CAPS_ULONG_ENTRIES];
 };
 
+enum PHM_PerformanceLevelDesignation {
+	PHM_PerformanceLevelDesignation_Activity,
+	PHM_PerformanceLevelDesignation_PowerContainment
+};
+
+typedef enum PHM_PerformanceLevelDesignation PHM_PerformanceLevelDesignation;
+
+struct PHM_PerformanceLevel {
+	uint32_t    coreClock;
+	uint32_t    memory_clock;
+	uint32_t  vddc;
+	uint32_t  vddci;
+	uint32_t    nonLocalMemoryFreq;
+	uint32_t nonLocalMemoryWidth;
+};
+
+typedef struct PHM_PerformanceLevel PHM_PerformanceLevel;
+
 /* Function for setting a platform cap */
 static inline void phm_cap_set(uint32_t *caps,
 			enum phm_platform_caps c)
@@ -226,6 +249,20 @@ static inline bool phm_cap_enabled(const uint32_t *caps, enum phm_platform_caps
 		  (1UL << (c & (PHM_MAX_NUM_CAPS_BITS_PER_FIELD - 1)))));
 }
 
+#define PP_PCIEGenInvalid  0xffff
+enum PP_PCIEGen {
+	PP_PCIEGen1 = 0,                /* PCIE 1.0 - Transfer rate of 2.5 GT/s */
+	PP_PCIEGen2,                    /*PCIE 2.0 - Transfer rate of 5.0 GT/s */
+	PP_PCIEGen3                     /*PCIE 3.0 - Transfer rate of 8.0 GT/s */
+};
+
+typedef enum PP_PCIEGen PP_PCIEGen;
+
+#define PP_Min_PCIEGen     PP_PCIEGen1
+#define PP_Max_PCIEGen     PP_PCIEGen3
+#define PP_Min_PCIELane    1
+#define PP_Max_PCIELane    32
+
 enum phm_clock_Type {
 	PHM_DispClock = 1,
 	PHM_SClock,
@@ -273,8 +310,22 @@ struct phm_clocks {
 	uint32_t num_of_entries;
 	uint32_t clock[MAX_NUM_CLOCKS];
 };
-
+extern int phm_enable_clock_power_gatings(struct pp_hwmgr *hwmgr);
+extern int phm_powergate_uvd(struct pp_hwmgr *hwmgr, bool gate);
+extern int phm_powergate_vce(struct pp_hwmgr *hwmgr, bool gate);
+extern int phm_powerdown_uvd(struct pp_hwmgr *hwmgr);
 extern int phm_setup_asic(struct pp_hwmgr *hwmgr);
 extern int phm_enable_dynamic_state_management(struct pp_hwmgr *hwmgr);
 extern void phm_init_dynamic_caps(struct pp_hwmgr *hwmgr);
+extern bool phm_is_hw_access_blocked(struct pp_hwmgr *hwmgr);
+extern int phm_block_hw_access(struct pp_hwmgr *hwmgr, bool block);
+extern int phm_set_power_state(struct pp_hwmgr *hwmgr,
+		    const struct pp_hw_power_state *pcurrent_state,
+		 const struct pp_hw_power_state *pnew_power_state);
+
+extern int phm_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
+				   struct pp_power_state *adjusted_ps,
+			     const struct pp_power_state *current_ps);
+
+extern int phm_force_dpm_levels(struct pp_hwmgr *hwmgr, enum amd_dpm_forced_level level);
 #endif /* _HARDWARE_MANAGER_H_ */
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 07fba418af76..18b5ab1e04d7 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -23,6 +23,7 @@
 #ifndef _HWMGR_H_
 #define _HWMGR_H_
 
+#include <linux/seq_file.h>
 #include "amd_powerplay.h"
 #include "pp_instance.h"
 #include "hardwaremanager.h"
@@ -85,6 +86,11 @@ typedef int (*phm_table_function)(struct pp_hwmgr *hwmgr, void *input,
 
 typedef bool (*phm_check_function)(struct pp_hwmgr *hwmgr);
 
+struct phm_set_power_state_input {
+	const struct pp_hw_power_state *pcurrent_state;
+	const struct pp_hw_power_state *pnew_state;
+};
+
 struct phm_acp_arbiter {
 	uint32_t acpclk;
 };
@@ -252,11 +258,34 @@ struct pp_hwmgr_func {
 	int (*backend_fini)(struct pp_hwmgr *hw_mgr);
 	int (*asic_setup)(struct pp_hwmgr *hw_mgr);
 	int (*get_power_state_size)(struct pp_hwmgr *hw_mgr);
-	int (*force_dpm_level)(struct pp_hwmgr *hw_mgr, enum amd_dpm_forced_level level);
-	int (*dynamic_state_management_enable)(struct pp_hwmgr *hw_mgr);
-	int (*patch_boot_state)(struct pp_hwmgr *hwmgr, struct pp_hw_power_state *hw_ps);
-	int (*get_pp_table_entry)(struct pp_hwmgr *hwmgr, unsigned long, struct pp_power_state *);
+
+	int (*apply_state_adjust_rules)(struct pp_hwmgr *hwmgr,
+				struct pp_power_state  *prequest_ps,
+			const struct pp_power_state *pcurrent_ps);
+
+	int (*force_dpm_level)(struct pp_hwmgr *hw_mgr,
+					enum amd_dpm_forced_level level);
+
+	int (*dynamic_state_management_enable)(
+						struct pp_hwmgr *hw_mgr);
+
+	int (*patch_boot_state)(struct pp_hwmgr *hwmgr,
+				     struct pp_hw_power_state *hw_ps);
+
+	int (*get_pp_table_entry)(struct pp_hwmgr *hwmgr,
+			    unsigned long, struct pp_power_state *);
+
 	int (*get_num_of_pp_table_entries)(struct pp_hwmgr *hwmgr);
+	int (*powerdown_uvd)(struct pp_hwmgr *hwmgr);
+	int (*powergate_vce)(struct pp_hwmgr *hwmgr, bool bgate);
+	int (*powergate_uvd)(struct pp_hwmgr *hwmgr, bool bgate);
+	int (*get_mclk)(struct pp_hwmgr *hwmgr, bool low);
+	int (*get_sclk)(struct pp_hwmgr *hwmgr, bool low);
+	int (*power_state_set)(struct pp_hwmgr *hwmgr,
+						const void *state);
+	void (*print_current_perforce_level)(struct pp_hwmgr *hwmgr,
+							struct seq_file *m);
+	int (*enable_clock_power_gating)(struct pp_hwmgr *hwmgr);
 };
 
 struct pp_table_func {
@@ -416,7 +445,7 @@ struct pp_hwmgr {
 	struct pp_smumgr *smumgr;
 	const void *soft_pp_table;
 	enum amd_dpm_forced_level dpm_level;
-
+	bool block_hw_access;
 	struct phm_gfx_arbiter gfx_arbiter;
 	struct phm_acp_arbiter acp_arbiter;
 	struct phm_uvd_arbiter uvd_arbiter;
@@ -430,6 +459,8 @@ struct pp_hwmgr {
 	struct phm_runtime_table_header setup_asic;
 	struct phm_runtime_table_header disable_dynamic_state_management;
 	struct phm_runtime_table_header enable_dynamic_state_management;
+	struct phm_runtime_table_header set_power_state;
+	struct phm_runtime_table_header enable_clock_power_gatings;
 	const struct pp_hwmgr_func *hwmgr_func;
 	const struct pp_table_func *pptable_func;
 	struct pp_power_state    *ps;
@@ -471,6 +502,11 @@ extern void phm_wait_for_indirect_register_unequal(
 				uint32_t value,
 				uint32_t mask);
 
+bool phm_cf_want_uvd_power_gating(struct pp_hwmgr *hwmgr);
+bool phm_cf_want_vce_power_gating(struct pp_hwmgr *hwmgr);
+
+#define PHM_ENTIRE_REGISTER_MASK 0xFFFFFFFFU
+
 #define PHM_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT
 #define PHM_FIELD_MASK(reg, field) reg##__##field##_MASK
 
diff --git a/drivers/gpu/drm/amd/powerplay/inc/pp_asicblocks.h b/drivers/gpu/drm/amd/powerplay/inc/pp_asicblocks.h
new file mode 100644
index 000000000000..0c1593e53654
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/inc/pp_asicblocks.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2015 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_ASICBLOCKS_H
+#define PP_ASICBLOCKS_H
+
+
+enum PHM_AsicBlock {
+	PHM_AsicBlock_GFX,
+	PHM_AsicBlock_UVD_MVC,
+	PHM_AsicBlock_UVD,
+	PHM_AsicBlock_UVD_HD,
+	PHM_AsicBlock_UVD_SD,
+	PHM_AsicBlock_Count
+};
+
+enum PHM_ClockGateSetting {
+	PHM_ClockGateSetting_StaticOn,
+	PHM_ClockGateSetting_StaticOff,
+	PHM_ClockGateSetting_Dynamic
+};
+
+struct phm_asic_blocks {
+	bool gfx : 1;
+	bool uvd : 1;
+};
+
+#endif