On Wed, Sep 11, 2013 at 02:57:51PM -0700, Ben Widawsky wrote:
> Tracing vm eviction is really the event we care about. For the cases we
> evict everything, we still will get the trace.
>
> Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_gem_evict.c | 2 ++
> drivers/gpu/drm/i915/i915_trace.h | 15 +++++++++++++++
> 2 files changed, 17 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
> index a3e279d..b46f7b9 100644
> --- a/drivers/gpu/drm/i915/i915_gem_evict.c
> +++ b/drivers/gpu/drm/i915/i915_gem_evict.c
> @@ -175,6 +175,8 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle)
> struct i915_vma *vma, *next;
> int ret;
>
> + trace_i915_gem_evict_vm(vm);
> +
> if (do_idle) {
> ret = i915_gpu_idle(vm->dev);
> if (ret)
> diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
> index e2c5ee6..c1a24af 100644
> --- a/drivers/gpu/drm/i915/i915_trace.h
> +++ b/drivers/gpu/drm/i915/i915_trace.h
> @@ -233,6 +233,21 @@ TRACE_EVENT(i915_gem_evict_everything,
> TP_printk("dev=%d", __entry->dev)
> );
>
> +TRACE_EVENT(i915_gem_evict_vm,
> + TP_PROTO(struct i915_address_space *vm),
> + TP_ARGS(vm),
> +
> + TP_STRUCT__entry(
> + __field(struct i915_address_space *, vm)
> + ),
> +
> + TP_fast_assign(
> + __entry->vm = vm;
> + ),
> +
> + TP_printk("vm=%p", __entry->vm)
> +);
Jesse drilled into me that we must never assume that we are the solitary
device on the system. Do we want to add dev here or remove all the
others?
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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