[Intel-gfx] [PATCH v4] drm/i915/scheduler: add gvt notification for guc submission

[Joonas Lahtinen]

On pe, 2017-03-24 at 09:49 +0800, Chuanxiao Dong wrote:
> GVT request needs a manual mmio load/restore. Before GuC submit
> a request, send notification to gvt for mmio loading. And after
> the GuC finished this GVT request, notify gvt again for mmio
> restore. This follows the usage when using execlists submission.
> 
> v2: use context_status_change instead of execlists_context_status_change
>     for better understanding (ZhengXiao)
> v3: remove the comment as it is obvious and not friendly to
>     the caller (Kevin)
> v4: fix indent issues (Joonas)
>     rename the context_status_change to intel_gvt_notify_context_status (Chris)
> 
> Cc: xiao.zheng at intel.com
> Cc: kevin.tian at intel.com
> Cc: joonas.lahtinen at linux.intel.com
> Cc: chris at chris-wilson.co.uk
> Signed-off-by: Chuanxiao Dong <chuanxiao.dong at intel.com>

<SNIP>

> @@ -634,6 +636,8 @@ static void i915_guc_irq_handler(unsigned long data)
>  		rq = port[0].request;
>  		while (rq && i915_gem_request_completed(rq)) {
>  			trace_i915_gem_request_out(rq);
> +			intel_gvt_notify_context_status(rq,
> +					INTEL_CONTEXT_SCHEDULE_OUT);

Code indent is still broken.

> @@ -87,5 +87,19 @@ uint64_t intel_lr_context_descriptor(struct i915_gem_context *ctx,
>  /* Execlists */
>  int intel_sanitize_enable_execlists(struct drm_i915_private *dev_priv,
>  				    int enable_execlists);
> +static inline void
> +intel_gvt_notify_context_status(struct drm_i915_gem_request *rq,
> +				unsigned long status)

With that prefix, this needs to go to intel_gvt.h, where you can take
advantage of the existing #ifdef block (which should really be #if
IS_ENABLED() too).

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation