Re: [PATCH v2 19/37] drm/i915: treat shmem as a region

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Quoting Matthew Auld (2019-06-27 21:56:15)
>  int i915_gem_freeze(struct drm_i915_private *dev_priv)
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index e4f811fdaedc..958c61e88200 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -2941,7 +2941,8 @@ int i915_gem_init_memory_regions(struct drm_i915_private *i915)
>  
>                 type = MEMORY_TYPE_FROM_REGION(intel_region_map[i]);
>                 switch (type) {
> -               default:
> +               case INTEL_SMEM:
> +                       mem = i915_gem_shmem_setup(i915);
>                         break;
>                 }
>  
> @@ -2951,11 +2952,9 @@ int i915_gem_init_memory_regions(struct drm_i915_private *i915)
>                         goto out_cleanup;
>                 }
>  
> -               if (mem) {
> -                       mem->id = intel_region_map[i];
> -                       mem->type = type;
> -                       mem->instance = MEMORY_INSTANCE_FROM_REGION(intel_region_map[i]);
> -               }
> +               mem->id = intel_region_map[i];
> +               mem->type = type;
> +               mem->instance = MEMORY_INSTANCE_FROM_REGION(intel_region_map[i]);

Go back and adjust the stub function you just introduced to avoid
self-inflicted churn.

Meanwhile I'm left with this magic that isn't even defined in this patch
to try and figure out if this is equivalent to the code you just
removed.
-Chris
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