Re: [PATCH 2/3] PCI: rcar: Allow 64bit MSI addresses

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On Sun, Mar 17, 2019 at 01:06:07AM +0100, marek.vasut@xxxxxxxxx wrote:
> From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> 
> The MSI address can be 64bit. Switch the data type used to hold the
> result of virt_to_phys() to phys_addr_t to reflect it's properties
> correctly and program the top 32bits of PA into PCIEMSIAUR.
> 
> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>

Looks sane. Not being a PCI expert, I wonder: Were we just lucky to not
hit a 64-bit MSI address before? Is this tied to our 32-bit limitation?

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