[Intel-gfx] [PATCH 3/9] drm/i915/cmdparser: Use cached vmappings

[Matthew Auld]

> +       if (dst_needs_clflush & CLFLUSH_BEFORE)
> +               batch_len = roundup(batch_len, boot_cpu_data.x86_clflush_size);
> +
>         memcpy(dst, src, batch_len);
>
> +       /* dst_obj is returned with vmap pinned */
> +       *needs_clflush_after = dst_needs_clflush & CLFLUSH_AFTER;
Where did CLFLUSH_{BEFORE, AFTER} come from, I can't find them?