video: driver: debugfs update for clockrate,bandwidth setting

/d/msm_vidc/core_clock_voting will modify only clock rate
and not ddr and llc bandwidth.
example usage:
adb shell "echo 444000000 > /d/msm_vidc/core_clock_voting".

introduction of /d/msm_vidc/ddr_bw and /d/msm_vidc/llcc_bw
which will modify ddr and llc bandwidth respectively.
example usage:
adb shell "echo 5000000 > /d/msm_vidc/ddr_bw_kbps".
adb shell "echo 7000000 > /d/msm_vidc/llc_bw_kbps".

Change-Id: If4aca728cae212630928dda69a38310d8268b5e1
Signed-off-by: Darshana Patil <[email protected]>

driver/vidc/inc/msm_vidc_debug.h

@@ -34,6 +34,8 @@ extern unsigned int msm_vidc_debug;
 extern bool msm_vidc_lossless_encode;
 extern bool msm_vidc_syscache_disable;
 extern int msm_vidc_clock_voting;
+extern int msm_vidc_ddr_bw;
+extern int msm_vidc_llc_bw;
 extern bool msm_vidc_fw_dump;
 extern unsigned int msm_vidc_enable_bugon;
 

driver/vidc/src/msm_vidc_debug.c

@@ -85,6 +85,8 @@ bool msm_vidc_syscache_disable = !true;
 EXPORT_SYMBOL(msm_vidc_syscache_disable);
 
 int msm_vidc_clock_voting = !1;
+int msm_vidc_ddr_bw = !1;
+int msm_vidc_llc_bw = !1;
 
 bool msm_vidc_fw_dump = !true;
 EXPORT_SYMBOL(msm_vidc_fw_dump);
@@ -301,6 +303,10 @@ struct dentry* msm_vidc_debugfs_init_drv()
 
 	debugfs_create_u32("core_clock_voting", 0644, dir,
 			&msm_vidc_clock_voting);
+	debugfs_create_u32("ddr_bw_kbps", 0644, dir,
+			&msm_vidc_ddr_bw);
+	debugfs_create_u32("llc_bw_kbps", 0644, dir,
+			&msm_vidc_llc_bw);
 	debugfs_create_bool("disable_video_syscache", 0644, dir,
 			&msm_vidc_syscache_disable);
 	debugfs_create_bool("lossless_encoding", 0644, dir,

driver/vidc/src/msm_vidc_power.c

@@ -167,6 +167,16 @@ static int msm_vidc_set_buses(struct msm_vidc_inst* inst)
 	}
 	mutex_unlock(&core->lock);
 
+	if (msm_vidc_ddr_bw) {
+		d_vpr_l("msm_vidc_ddr_bw %d\n", msm_vidc_ddr_bw);
+		total_bw_ddr = msm_vidc_ddr_bw;
+	}
+
+	if (msm_vidc_llc_bw) {
+		d_vpr_l("msm_vidc_llc_bw %d\n", msm_vidc_llc_bw);
+		total_bw_llcc = msm_vidc_llc_bw;
+	}
+
 	rc = venus_hfi_scale_buses(inst, total_bw_ddr, total_bw_llcc);
 	if (rc)
 		return rc;
@@ -197,8 +207,6 @@ int msm_vidc_scale_buses(struct msm_vidc_inst *inst)
 	vote_data->power_mode = VIDC_POWER_NORMAL;
 	if (inst->power.buffer_counter < DCVS_WINDOW || is_image_session(inst))
 		vote_data->power_mode = VIDC_POWER_TURBO;
-	if (msm_vidc_clock_voting)
-		vote_data->power_mode = VIDC_POWER_TURBO;
 
 	if (vote_data->power_mode == VIDC_POWER_TURBO)
 		goto set_buses;