drm/amd/display: Update dchubbub.h for hubbub perfmon support

[why]
dchubbub supports performance monitoring for hubbub.
The interfaces define the performance monitoring events and their
attributes.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Wenjing Liu

drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h

@@ -137,6 +137,19 @@ struct dcn_hubbub_state {
 	uint32_t dram_state_cntl;
 };
 
+struct hubbub_system_latencies {
+	uint32_t max_latency_ns;
+	uint32_t avg_latency_ns;
+	uint32_t min_latency_ns;
+};
+
+struct hubbub_urgent_latency_params {
+	uint32_t refclk_mhz;
+	uint32_t t_win_ns;
+	uint32_t bandwidth_mbps;
+	uint32_t bw_factor_x1000;
+};
+
 struct hubbub_funcs {
 	void (*update_dchub)(
 			struct hubbub *hubbub,
@@ -231,6 +244,15 @@ struct hubbub_funcs {
 	bool (*program_arbiter)(struct hubbub *hubbub, struct dml2_display_arb_regs *arb_regs, bool safe_to_lower);
 	void (*get_det_sizes)(struct hubbub *hubbub, uint32_t *curr_det_sizes, uint32_t *target_det_sizes);
 	uint32_t (*compbuf_config_error)(struct hubbub *hubbub);
+	struct hubbub_perfmon_funcs{
+		void (*start_system_latency_measurement)(struct hubbub *hubbub);
+		void (*get_system_latency_result)(struct hubbub *hubbub, uint32_t refclk_mhz, struct hubbub_system_latencies *latencies);
+		void (*start_in_order_bandwidth_measurement)(struct hubbub *hubbub);
+		void (*get_in_order_bandwidth_result)(struct hubbub *hubbub, uint32_t refclk_mhz, uint32_t *bandwidth_mbps);
+		void (*start_urgent_ramp_latency_measurement)(struct hubbub *hubbub, const struct hubbub_urgent_latency_params *params);
+		void (*get_urgent_ramp_latency_result)(struct hubbub *hubbub, uint32_t refclk_mhz, uint32_t *latency_ns);
+		void (*reset)(struct hubbub *hubbub);
+	} perfmon;
 };
 
 struct hubbub {