From: Ville Syrjälä Date: Tue, 29 Apr 2014 10:35:48 +0000 (+0300) Subject: drm/i915: Add pipe update trace points X-Git-Tag: next-20140502~50^2~18 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ea084156d10328b55f41af22add1b2078f95932f;p=karo-tx-linux.git drm/i915: Add pipe update trace points Add trace points for observing the atomic pipe update mechanism. v2: Rebased due to earlier changes v3: Pass intel_crtc instead of drm_crtc (Daniel) v4: Pass frame counter from the caller to evaded/end since the caller now always has that ready Reviewed-by: Jesse Barnes Reviewed-by: Sourab Gupta Reviewed-by: Akash Goel Signed-off-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index 23c26f1f8b37..b29d7b1828f1 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -7,6 +7,7 @@ #include #include "i915_drv.h" +#include "intel_drv.h" #include "intel_ringbuffer.h" #undef TRACE_SYSTEM @@ -14,6 +15,80 @@ #define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM) #define TRACE_INCLUDE_FILE i915_trace +/* pipe updates */ + +TRACE_EVENT(i915_pipe_update_start, + TP_PROTO(struct intel_crtc *crtc, u32 min, u32 max), + TP_ARGS(crtc, min, max), + + TP_STRUCT__entry( + __field(enum pipe, pipe) + __field(u32, frame) + __field(u32, scanline) + __field(u32, min) + __field(u32, max) + ), + + TP_fast_assign( + __entry->pipe = crtc->pipe; + __entry->frame = crtc->base.dev->driver->get_vblank_counter(crtc->base.dev, + crtc->pipe); + __entry->scanline = intel_get_crtc_scanline(crtc); + __entry->min = min; + __entry->max = max; + ), + + TP_printk("pipe %c, frame=%u, scanline=%u, min=%u, max=%u", + pipe_name(__entry->pipe), __entry->frame, + __entry->scanline, __entry->min, __entry->max) +); + +TRACE_EVENT(i915_pipe_update_vblank_evaded, + TP_PROTO(struct intel_crtc *crtc, u32 min, u32 max, u32 frame), + TP_ARGS(crtc, min, max, frame), + + TP_STRUCT__entry( + __field(enum pipe, pipe) + __field(u32, frame) + __field(u32, scanline) + __field(u32, min) + __field(u32, max) + ), + + TP_fast_assign( + __entry->pipe = crtc->pipe; + __entry->frame = frame; + __entry->scanline = intel_get_crtc_scanline(crtc); + __entry->min = min; + __entry->max = max; + ), + + TP_printk("pipe %c, frame=%u, scanline=%u, min=%u, max=%u", + pipe_name(__entry->pipe), __entry->frame, + __entry->scanline, __entry->min, __entry->max) +); + +TRACE_EVENT(i915_pipe_update_end, + TP_PROTO(struct intel_crtc *crtc, u32 frame), + TP_ARGS(crtc, frame), + + TP_STRUCT__entry( + __field(enum pipe, pipe) + __field(u32, frame) + __field(u32, scanline) + ), + + TP_fast_assign( + __entry->pipe = crtc->pipe; + __entry->frame = frame; + __entry->scanline = intel_get_crtc_scanline(crtc); + ), + + TP_printk("pipe %c, frame=%u, scanline=%u", + pipe_name(__entry->pipe), __entry->frame, + __entry->scanline) +); + /* object tracking */ TRACE_EVENT(i915_gem_object_create, diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 6192e586de5d..213cd58f0412 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -73,6 +73,8 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl local_irq_disable(); + trace_i915_pipe_update_start(crtc, min, max); + for (;;) { /* * prepare_to_wait() has a memory barrier, which guarantees @@ -104,6 +106,8 @@ static bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl *start_vbl_count = dev->driver->get_vblank_counter(dev, pipe); + trace_i915_pipe_update_vblank_evaded(crtc, min, max, *start_vbl_count); + return true; } @@ -113,6 +117,8 @@ static void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count) enum pipe pipe = crtc->pipe; u32 end_vbl_count = dev->driver->get_vblank_counter(dev, pipe); + trace_i915_pipe_update_end(crtc, end_vbl_count); + local_irq_enable(); if (start_vbl_count != end_vbl_count)