[PATCH v2] powerpc/eeh: Fix EEH handling for hugepages in ioremap space.

[Michael Ellerman]

On Mon, 12 Apr 2021 13:22:50 +0530, Mahesh Salgaonkar wrote:
> During the EEH MMIO error checking, the current implementation fails to map
> the (virtual) MMIO address back to the pci device on radix with hugepage
> mappings for I/O. This results into failure to dispatch EEH event with no
> recovery even when EEH capability has been enabled on the device.
> 
> eeh_check_failure(token)		# token = virtual MMIO address
>   addr = eeh_token_to_phys(token);
>   edev = eeh_addr_cache_get_dev(addr);
>   if (!edev)
> 	return 0;
>   eeh_dev_check_failure(edev);	<= Dispatch the EEH event
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/eeh: Fix EEH handling for hugepages in ioremap space.
      https://git.kernel.org/powerpc/c/5ae5bc12d0728db60a0aa9b62160ffc038875f1a

cheers