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From 4c888e7bd26f58deb27c2e6ddc90000b89ee9393 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 19 Jun 2019 20:08:39 +0300
Subject: drm/i915: Fix various tracepoints for gen2
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Git-commit: 4c888e7bd26f58deb27c2e6ddc90000b89ee9393
Patch-mainline: v5.4-rc1
References: bsc#1113722

Gen2 doesn't have a frame counter and apparently we no longer provide
a fake .get_vblank_counter() hook for it. That means all tracepoints
calling that hook will oops. Update the tracepoints to use
intel_crtc_get_vblank_counter() which will gracefully fall back to
using the software counter. This is actually a better approach since
we now get (hopefully accurate) frame numbers in the traces.

This also gets rid of the raw driver->get_vblank_counter() calls, which
we need to do in order to switch to the per-crtc vblank vfuncs.

v2: Deal with new tracepoints
v3: Use a distinct variable name for the internal crtc iterator (Chris)

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Fixes: 967dd4841787 ("drm: remove drm_vblank_no_hw_counter assignment from driver code")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619170842.20579-2-ville.syrjala@linux.intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/i915/i915_trace.h |   42 ++++++++++++++++----------------------
 1 file changed, 18 insertions(+), 24 deletions(-)

--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -27,9 +27,10 @@ TRACE_EVENT(intel_cpu_fifo_underrun,
 			     ),
 
 	    TP_fast_assign(
-			   __entry->pipe = pipe;
-			   __entry->frame = dev_priv->drm.driver->get_vblank_counter(&dev_priv->drm, pipe);
-			   __entry->scanline = intel_get_crtc_scanline(intel_get_crtc_for_pipe(dev_priv, pipe));
+			    struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
+ 			   __entry->pipe = pipe;
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
+			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   ),
 
 	    TP_printk("pipe %c, frame=%u, scanline=%u",
@@ -49,9 +50,10 @@ TRACE_EVENT(intel_pch_fifo_underrun,
 
 	    TP_fast_assign(
 			   enum pipe pipe = pch_transcoder;
-			   __entry->pipe = pipe;
-			   __entry->frame = dev_priv->drm.driver->get_vblank_counter(&dev_priv->drm, pipe);
-			   __entry->scanline = intel_get_crtc_scanline(intel_get_crtc_for_pipe(dev_priv, pipe));
+			   struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
+ 			   __entry->pipe = pipe;
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
+			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   ),
 
 	    TP_printk("pch transcoder %c, frame=%u, scanline=%u",
@@ -71,12 +73,10 @@ TRACE_EVENT(intel_memory_cxsr,
 			     ),
 
 	    TP_fast_assign(
-			   enum pipe pipe;
-			   for_each_pipe(dev_priv, pipe) {
-				   __entry->frame[pipe] =
-					   dev_priv->drm.driver->get_vblank_counter(&dev_priv->drm, pipe);
-				   __entry->scanline[pipe] =
-					   intel_get_crtc_scanline(intel_get_crtc_for_pipe(dev_priv, pipe));
+			   struct intel_crtc *crtc;
+			   for_each_intel_crtc(&dev_priv->drm, crtc) {
+				   __entry->frame[crtc->pipe] = intel_crtc_get_vblank_counter(crtc);
+				   __entry->scanline[crtc->pipe] = intel_get_crtc_scanline(crtc);
 			   }
 			   __entry->old = old;
 			   __entry->new = new;
@@ -113,8 +113,7 @@ TRACE_EVENT(g4x_wm,
 
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   __entry->primary = wm->pipe[crtc->pipe].plane[PLANE_PRIMARY];
 			   __entry->sprite = wm->pipe[crtc->pipe].plane[PLANE_SPRITE0];
@@ -158,8 +157,7 @@ TRACE_EVENT(vlv_wm,
 
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   __entry->level = wm->level;
 			   __entry->cxsr = wm->cxsr;
@@ -193,8 +191,7 @@ TRACE_EVENT(vlv_fifo_size,
 
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   __entry->sprite0_start = sprite0_start;
 			   __entry->sprite1_start = sprite1_start;
@@ -225,8 +222,7 @@ TRACE_EVENT(intel_update_plane,
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
 			   __entry->name = plane->name;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   memcpy(__entry->src, &plane->state->src, sizeof(__entry->src));
 			   memcpy(__entry->dst, &plane->state->dst, sizeof(__entry->dst));
@@ -253,8 +249,7 @@ TRACE_EVENT(intel_disable_plane,
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
 			   __entry->name = plane->name;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   ),
 
@@ -279,8 +274,7 @@ TRACE_EVENT(i915_pipe_update_start,
 
 	    TP_fast_assign(
 			   __entry->pipe = crtc->pipe;
-			   __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev,
-										       crtc->pipe);
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
 			   __entry->min = crtc->debug.min_vbl;
 			   __entry->max = crtc->debug.max_vbl;