disp: msm: sde: get ctl scheduler status at each vsync

Get controller scheduler status at each vsync to verify
pending frame status.

Change-Id: I01401a57b68828294299977a7be7e796d07c7472
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

msm/sde/sde_encoder_phys_cmd.c

@@ -254,13 +254,15 @@ static void sde_encoder_phys_cmd_te_rd_ptr_irq(void *arg, int irq_idx)
 {
 	struct sde_encoder_phys *phys_enc = arg;
 	struct sde_encoder_phys_cmd *cmd_enc;
-	u32 event = 0;
+	u32 event = 0, scheduler_status = INVALID_CTL_STATUS;
+	struct sde_hw_ctl *ctl;
 
 	if (!phys_enc || !phys_enc->hw_pp || !phys_enc->hw_intf)
 		return;
 
 	SDE_ATRACE_BEGIN("rd_ptr_irq");
 	cmd_enc = to_sde_encoder_phys_cmd(phys_enc);
+	ctl = phys_enc->hw_ctl;
 
 	/**
 	 * signal only for master, when the ctl_start irq is
@@ -277,10 +279,13 @@ static void sde_encoder_phys_cmd_te_rd_ptr_irq(void *arg, int irq_idx)
 				phys_enc->parent, phys_enc, event);
 	}
 
+	if (ctl && ctl->ops.get_scheduler_status)
+		scheduler_status = ctl->ops.get_scheduler_status(ctl);
+
 	SDE_EVT32_IRQ(DRMID(phys_enc->parent),
 			phys_enc->hw_pp->idx - PINGPONG_0,
 			phys_enc->hw_intf->idx - INTF_0,
-			event, 0xfff);
+			event, scheduler_status, 0xfff);
 
 	if (phys_enc->parent_ops.handle_vblank_virt)
 		phys_enc->parent_ops.handle_vblank_virt(phys_enc->parent,

msm/sde/sde_hw_ctl.c

@@ -691,7 +691,7 @@ static u32 sde_hw_ctl_get_reset_status(struct sde_hw_ctl *ctx)
 static u32 sde_hw_ctl_get_scheduler_status(struct sde_hw_ctl *ctx)
 {
 	if (!ctx)
-		return 0;
+		return INVALID_CTL_STATUS;
 	return (u32)SDE_REG_READ(&ctx->hw, CTL_STATUS);
 }
 

msm/sde/sde_hw_ctl.h

@@ -12,6 +12,8 @@
 #include "sde_hw_sspp.h"
 #include "sde_hw_blk.h"
 
+#define INVALID_CTL_STATUS 0xfffff88e
+
 /**
  * sde_ctl_mode_sel: Interface mode selection
  * SDE_CTL_MODE_SEL_VID:    Video mode interface