On Fri, Dec 13, 2019 at 03:34:52PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Add tracepoints which let us know when fbc activates/deactivates/nukes.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_fbc.c | 9 ++++
> drivers/gpu/drm/i915/i915_trace.h | 62 ++++++++++++++++++++++++
> 2 files changed, 71 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
> index 28adf4636800..88a9c2fea695 100644
> --- a/drivers/gpu/drm/i915/display/intel_fbc.c
> +++ b/drivers/gpu/drm/i915/display/intel_fbc.c
> @@ -41,6 +41,7 @@
> #include <drm/drm_fourcc.h>
>
> #include "i915_drv.h"
> +#include "i915_trace.h"
> #include "intel_display_types.h"
> #include "intel_fbc.h"
> #include "intel_frontbuffer.h"
> @@ -200,6 +201,10 @@ static bool g4x_fbc_is_active(struct drm_i915_private *dev_priv)
> /* This function forces a CFB recompression through the nuke operation. */
> static void intel_fbc_recompress(struct drm_i915_private *dev_priv)
> {
> + struct intel_fbc *fbc = &dev_priv->fbc;
> +
> + trace_intel_fbc_nuke(fbc->crtc);
> +
> I915_WRITE(MSG_FBC_REND_STATE, FBC_REND_NUKE);
> POSTING_READ(MSG_FBC_REND_STATE);
> }
> @@ -356,6 +361,8 @@ static void intel_fbc_hw_activate(struct drm_i915_private *dev_priv)
> {
> struct intel_fbc *fbc = &dev_priv->fbc;
>
> + trace_intel_fbc_activate(fbc->crtc);
> +
> fbc->active = true;
> fbc->activated = true;
>
> @@ -373,6 +380,8 @@ static void intel_fbc_hw_deactivate(struct drm_i915_private *dev_priv)
> {
> struct intel_fbc *fbc = &dev_priv->fbc;
>
> + trace_intel_fbc_deactivate(fbc->crtc);
> +
> fbc->active = false;
>
> if (INTEL_GEN(dev_priv) >= 5)
> diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
> index 7ef7a1e1664c..66ff96303b95 100644
> --- a/drivers/gpu/drm/i915/i915_trace.h
> +++ b/drivers/gpu/drm/i915/i915_trace.h
> @@ -339,6 +339,68 @@ TRACE_EVENT(intel_disable_plane,
> __entry->frame, __entry->scanline)
> );
>
> +/* fbc */
> +
> +TRACE_EVENT(intel_fbc_activate,
> + TP_PROTO(struct intel_crtc *crtc),
> + TP_ARGS(crtc),
> +
> + TP_STRUCT__entry(
> + __field(enum pipe, pipe)
> + __field(u32, frame)
> + __field(u32, scanline)
> + ),
> +
> + TP_fast_assign(
> + __entry->pipe = crtc->pipe;
> + __entry->frame = intel_crtc_get_vblank_counter(crtc);
> + __entry->scanline = intel_get_crtc_scanline(crtc);
> + ),
> +
> + TP_printk("pipe %c, frame=%u, scanline=%u",
> + pipe_name(__entry->pipe), __entry->frame, __entry->scanline)
> +);
> +
> +TRACE_EVENT(intel_fbc_deactivate,
> + TP_PROTO(struct intel_crtc *crtc),
> + TP_ARGS(crtc),
> +
> + TP_STRUCT__entry(
> + __field(enum pipe, pipe)
> + __field(u32, frame)
> + __field(u32, scanline)
> + ),
> +
> + TP_fast_assign(
> + __entry->pipe = crtc->pipe;
> + __entry->frame = intel_crtc_get_vblank_counter(crtc);
> + __entry->scanline = intel_get_crtc_scanline(crtc);
> + ),
> +
> + TP_printk("pipe %c, frame=%u, scanline=%u",
> + pipe_name(__entry->pipe), __entry->frame, __entry->scanline)
> +);
> +
> +TRACE_EVENT(intel_fbc_nuke,
> + TP_PROTO(struct intel_crtc *crtc),
> + TP_ARGS(crtc),
> +
> + TP_STRUCT__entry(
> + __field(enum pipe, pipe)
> + __field(u32, frame)
> + __field(u32, scanline)
> + ),
> +
> + TP_fast_assign(
> + __entry->pipe = crtc->pipe;
> + __entry->frame = intel_crtc_get_vblank_counter(crtc);
> + __entry->scanline = intel_get_crtc_scanline(crtc);
> + ),
> +
> + TP_printk("pipe %c, frame=%u, scanline=%u",
> + pipe_name(__entry->pipe), __entry->frame, __entry->scanline)
> +);
> +
> /* pipe updates */
>
> TRACE_EVENT(i915_pipe_update_start,
> --
> 2.23.0
>
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