diff mbox series

[2/3] drm/msm: Convert shrinker msgs to tracepoints

Message ID 20200901154200.2451899-3-robdclark@gmail.com
State New
Headers show
Series drm/msm: More GPU tracepoints | expand

Commit Message

Rob Clark Sept. 1, 2020, 3:41 p.m. UTC 
From: Rob Clark <robdclark@chromium.org>

This reduces the spam in dmesg when we start hitting the shrinker, and
replaces it with something we can put on a timeline while profiling or
debugging system issues.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 drivers/gpu/drm/msm/msm_gem_shrinker.c |  5 +++--
 drivers/gpu/drm/msm/msm_gpu_trace.h    | 26 ++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

Comments

Jordan Crouse Sept. 2, 2020, 8:41 p.m. UTC | #1 
On Tue, Sep 01, 2020 at 08:41:55AM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> This reduces the spam in dmesg when we start hitting the shrinker, and
> replaces it with something we can put on a timeline while profiling or
> debugging system issues.

Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>

> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
>  drivers/gpu/drm/msm/msm_gem_shrinker.c |  5 +++--
>  drivers/gpu/drm/msm/msm_gpu_trace.h    | 26 ++++++++++++++++++++++++++
>  2 files changed, 29 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/msm_gem_shrinker.c b/drivers/gpu/drm/msm/msm_gem_shrinker.c
> index 722d61668a97..482576d7a39a 100644
> --- a/drivers/gpu/drm/msm/msm_gem_shrinker.c
> +++ b/drivers/gpu/drm/msm/msm_gem_shrinker.c
> @@ -6,6 +6,7 @@
>  
>  #include "msm_drv.h"
>  #include "msm_gem.h"
> +#include "msm_gpu_trace.h"
>  
>  static bool msm_gem_shrinker_lock(struct drm_device *dev, bool *unlock)
>  {
> @@ -87,7 +88,7 @@ msm_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
>  		mutex_unlock(&dev->struct_mutex);
>  
>  	if (freed > 0)
> -		pr_info_ratelimited("Purging %lu bytes\n", freed << PAGE_SHIFT);
> +		trace_msm_gem_purge(freed << PAGE_SHIFT);
>  
>  	return freed;
>  }
> @@ -123,7 +124,7 @@ msm_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr)
>  	*(unsigned long *)ptr += unmapped;
>  
>  	if (unmapped > 0)
> -		pr_info_ratelimited("Purging %u vmaps\n", unmapped);
> +		trace_msm_gem_purge_vmaps(unmapped);
>  
>  	return NOTIFY_DONE;
>  }
> diff --git a/drivers/gpu/drm/msm/msm_gpu_trace.h b/drivers/gpu/drm/msm/msm_gpu_trace.h
> index 07572ab179fa..1079fe551279 100644
> --- a/drivers/gpu/drm/msm/msm_gpu_trace.h
> +++ b/drivers/gpu/drm/msm/msm_gpu_trace.h
> @@ -114,6 +114,32 @@ TRACE_EVENT(msm_gmu_freq_change,
>  		TP_printk("freq=%u, perf_index=%u", __entry->freq, __entry->perf_index)
>  );
>  
> +
> +TRACE_EVENT(msm_gem_purge,
> +		TP_PROTO(u32 bytes),
> +		TP_ARGS(bytes),
> +		TP_STRUCT__entry(
> +			__field(u32, bytes)
> +			),
> +		TP_fast_assign(
> +			__entry->bytes = bytes;
> +			),
> +		TP_printk("Purging %u bytes", __entry->bytes)
> +);
> +
> +
> +TRACE_EVENT(msm_gem_purge_vmaps,
> +		TP_PROTO(u32 unmapped),
> +		TP_ARGS(unmapped),
> +		TP_STRUCT__entry(
> +			__field(u32, unmapped)
> +			),
> +		TP_fast_assign(
> +			__entry->unmapped = unmapped;
> +			),
> +		TP_printk("Purging %u vmaps", __entry->unmapped)
> +);
> +
>  #endif
>  
>  #undef TRACE_INCLUDE_PATH
> -- 
> 2.26.2
> 
> _______________________________________________
> Freedreno mailing list
> Freedreno@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/freedreno
Kristian Høgsberg Sept. 3, 2020, 7:23 a.m. UTC | #2 
On Tue, Sep 1, 2020 at 8:41 AM Rob Clark <robdclark@gmail.com> wrote:
>
> From: Rob Clark <robdclark@chromium.org>
>
> This reduces the spam in dmesg when we start hitting the shrinker, and
> replaces it with something we can put on a timeline while profiling or
> debugging system issues.

That is a good solution,

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>

> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
>  drivers/gpu/drm/msm/msm_gem_shrinker.c |  5 +++--
>  drivers/gpu/drm/msm/msm_gpu_trace.h    | 26 ++++++++++++++++++++++++++
>  2 files changed, 29 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_gem_shrinker.c b/drivers/gpu/drm/msm/msm_gem_shrinker.c
> index 722d61668a97..482576d7a39a 100644
> --- a/drivers/gpu/drm/msm/msm_gem_shrinker.c
> +++ b/drivers/gpu/drm/msm/msm_gem_shrinker.c
> @@ -6,6 +6,7 @@
>
>  #include "msm_drv.h"
>  #include "msm_gem.h"
> +#include "msm_gpu_trace.h"
>
>  static bool msm_gem_shrinker_lock(struct drm_device *dev, bool *unlock)
>  {
> @@ -87,7 +88,7 @@ msm_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
>                 mutex_unlock(&dev->struct_mutex);
>
>         if (freed > 0)
> -               pr_info_ratelimited("Purging %lu bytes\n", freed << PAGE_SHIFT);
> +               trace_msm_gem_purge(freed << PAGE_SHIFT);
>
>         return freed;
>  }
> @@ -123,7 +124,7 @@ msm_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr)
>         *(unsigned long *)ptr += unmapped;
>
>         if (unmapped > 0)
> -               pr_info_ratelimited("Purging %u vmaps\n", unmapped);
> +               trace_msm_gem_purge_vmaps(unmapped);
>
>         return NOTIFY_DONE;
>  }
> diff --git a/drivers/gpu/drm/msm/msm_gpu_trace.h b/drivers/gpu/drm/msm/msm_gpu_trace.h
> index 07572ab179fa..1079fe551279 100644
> --- a/drivers/gpu/drm/msm/msm_gpu_trace.h
> +++ b/drivers/gpu/drm/msm/msm_gpu_trace.h
> @@ -114,6 +114,32 @@ TRACE_EVENT(msm_gmu_freq_change,
>                 TP_printk("freq=%u, perf_index=%u", __entry->freq, __entry->perf_index)
>  );
>
> +
> +TRACE_EVENT(msm_gem_purge,
> +               TP_PROTO(u32 bytes),
> +               TP_ARGS(bytes),
> +               TP_STRUCT__entry(
> +                       __field(u32, bytes)
> +                       ),
> +               TP_fast_assign(
> +                       __entry->bytes = bytes;
> +                       ),
> +               TP_printk("Purging %u bytes", __entry->bytes)
> +);
> +
> +
> +TRACE_EVENT(msm_gem_purge_vmaps,
> +               TP_PROTO(u32 unmapped),
> +               TP_ARGS(unmapped),
> +               TP_STRUCT__entry(
> +                       __field(u32, unmapped)
> +                       ),
> +               TP_fast_assign(
> +                       __entry->unmapped = unmapped;
> +                       ),
> +               TP_printk("Purging %u vmaps", __entry->unmapped)
> +);
> +
>  #endif
>
>  #undef TRACE_INCLUDE_PATH
> --
> 2.26.2
>
> _______________________________________________
> Freedreno mailing list
> Freedreno@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/freedreno
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/msm_gem_shrinker.c b/drivers/gpu/drm/msm/msm_gem_shrinker.c
index 722d61668a97..482576d7a39a 100644
--- a/drivers/gpu/drm/msm/msm_gem_shrinker.c
+++ b/drivers/gpu/drm/msm/msm_gem_shrinker.c
@@ -6,6 +6,7 @@ 
 
 #include "msm_drv.h"
 #include "msm_gem.h"
+#include "msm_gpu_trace.h"
 
 static bool msm_gem_shrinker_lock(struct drm_device *dev, bool *unlock)
 {
@@ -87,7 +88,7 @@  msm_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
 		mutex_unlock(&dev->struct_mutex);
 
 	if (freed > 0)
-		pr_info_ratelimited("Purging %lu bytes\n", freed << PAGE_SHIFT);
+		trace_msm_gem_purge(freed << PAGE_SHIFT);
 
 	return freed;
 }
@@ -123,7 +124,7 @@  msm_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr)
 	*(unsigned long *)ptr += unmapped;
 
 	if (unmapped > 0)
-		pr_info_ratelimited("Purging %u vmaps\n", unmapped);
+		trace_msm_gem_purge_vmaps(unmapped);
 
 	return NOTIFY_DONE;
 }
diff --git a/drivers/gpu/drm/msm/msm_gpu_trace.h b/drivers/gpu/drm/msm/msm_gpu_trace.h
index 07572ab179fa..1079fe551279 100644
--- a/drivers/gpu/drm/msm/msm_gpu_trace.h
+++ b/drivers/gpu/drm/msm/msm_gpu_trace.h
@@ -114,6 +114,32 @@  TRACE_EVENT(msm_gmu_freq_change,
 		TP_printk("freq=%u, perf_index=%u", __entry->freq, __entry->perf_index)
 );
 
+
+TRACE_EVENT(msm_gem_purge,
+		TP_PROTO(u32 bytes),
+		TP_ARGS(bytes),
+		TP_STRUCT__entry(
+			__field(u32, bytes)
+			),
+		TP_fast_assign(
+			__entry->bytes = bytes;
+			),
+		TP_printk("Purging %u bytes", __entry->bytes)
+);
+
+
+TRACE_EVENT(msm_gem_purge_vmaps,
+		TP_PROTO(u32 unmapped),
+		TP_ARGS(unmapped),
+		TP_STRUCT__entry(
+			__field(u32, unmapped)
+			),
+		TP_fast_assign(
+			__entry->unmapped = unmapped;
+			),
+		TP_printk("Purging %u vmaps", __entry->unmapped)
+);
+
 #endif
 
 #undef TRACE_INCLUDE_PATH