* Toshi Kani <[email protected]> wrote:
> This patch implements huge I/O mapping capability interfaces on x86.
> +#ifdef CONFIG_HUGE_IOMAP
> +#ifdef CONFIG_X86_64
> +#define IOREMAP_MAX_ORDER (PUD_SHIFT)
> +#else
> +#define IOREMAP_MAX_ORDER (PMD_SHIFT)
> +#endif
> +#endif /* CONFIG_HUGE_IOMAP */
> +#ifdef CONFIG_HUGE_IOMAP
Hm, so why is there a Kconfig option for this? It just
complicates things.
For example the kernel already defaults to mapping itself
with as large mappings as possible, without a Kconfig entry
for it. There's no reason to make this configurable - and
quite a bit of complexity in the patches comes from this
configurability.
Thanks,
Ingo
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