Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> writes:
> From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
>
> As GEM contexts are closed we want to have the DRM client remember how
> much GPU time they used (per class) so later we can used it for smarter
> purposes.
>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gem/i915_gem_context.c | 12 +++++++++++-
> drivers/gpu/drm/i915/i915_drm_client.h | 7 +++++++
> 2 files changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> index a12e926444e1..a50b83659399 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> @@ -351,8 +351,18 @@ static void i915_gem_context_free(struct i915_gem_context *ctx)
>
> GEM_BUG_ON(!i915_gem_context_is_closed(ctx));
>
> - if (client)
> + if (client) {
> + unsigned int i;
> +
> + /* Transfer accumulated runtime to the parent drm client. */
> + BUILD_BUG_ON(ARRAY_SIZE(client->past_runtime) !=
> + ARRAY_SIZE(ctx->past_runtime));
> + for (i = 0; i < ARRAY_SIZE(client->past_runtime); i++)
> + atomic64_add(atomic64_read(&ctx->past_runtime[i]),
> + &client->past_runtime[i]);
> +
> i915_drm_client_put(client);
> + }
>
> spin_lock(&ctx->i915->gem.contexts.lock);
> list_del(&ctx->link);
> diff --git a/drivers/gpu/drm/i915/i915_drm_client.h b/drivers/gpu/drm/i915/i915_drm_client.h
> index 11b48383881d..29b116606596 100644
> --- a/drivers/gpu/drm/i915/i915_drm_client.h
> +++ b/drivers/gpu/drm/i915/i915_drm_client.h
> @@ -15,6 +15,8 @@
> #include <linux/sched.h>
> #include <linux/xarray.h>
>
> +#include "gt/intel_engine_types.h"
> +
> struct i915_drm_clients {
> struct xarray xarray;
> u32 next_id;
> @@ -41,6 +43,11 @@ struct i915_drm_client {
> struct device_attribute pid;
> struct device_attribute name;
> } attr;
> +
> + /**
> + * @past_runtime: Accumulation of pphwsp runtimes from closed contexts.
> + */
> + atomic64_t past_runtime[MAX_ENGINE_CLASS + 1];
> };
>
> void i915_drm_clients_init(struct i915_drm_clients *clients);
> --
> 2.25.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
