[igt-dev] [RFC PATCH 2/4] lib/i915/intel_memory_region: Add lib to manage memory regions

[Chris Wilson]

Quoting Lukasz Kalamarz (2019-08-14 11:21:38)
> +/**
> + *  gem_get_page_size:
> + *  @fd: open i915 drm file descriptor
> + *  @mem_region_type: used memory_region type
> + *
> + *  With introduction of LMEM we observe different page sizes for those two
> + *  memory regions. Without this helper function we may be prone to forget
> + *  about setting proper page size.
> + */
> +uint32_t gem_get_batch_size(int fd, uint8_t mem_region_type)
> +{
> +       return (mem_region_type == LOCAL_I915_DEVICE_MEMORY) ? 65536 : 4096;

You have to be kidding me. This, this constitutes a forward thinking uAPI?
-Chris