RE: [PATCH] PCI: rcar: Always allocate MSI addresses in 32bit space

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Hello Marek-san,

> From: marek.vasut@xxxxxxxxx, Sent: Friday, October 16, 2020 9:05 PM
> 
> From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> 
> This fixes MSI operation on legacy PCI cards, which cannot issue 64bit MSIs.
> The R-Car controller only has one MSI trigger address instead of two, one
> for 64bit and one for 32bit MSI, set the address to 32bit PCIe space so that
> legacy PCI cards can also trigger MSIs.
> 
> Fixes: 290c1fb35860 ("PCI: rcar: Add MSI support for PCIe")
> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>
> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> Cc: linux-renesas-soc@xxxxxxxxxxxxxxx

Thank you for the patch!

Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>

And I tested on R-Car H3. So,

Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>

Best regards,
Yoshihiro Shimoda





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