powerpc/powernv/ioda: Allocate indirect TCE levels of cached userspace addresses on demand

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[ Upstream commit bdbf649efe ]

The powernv platform maintains 2 TCE tables for VFIO - a hardware TCE
table and a table with userspace addresses; the latter is used for
marking pages dirty when corresponging TCEs are unmapped from
the hardware table.

a68bd1267b ("powerpc/powernv/ioda: Allocate indirect TCE levels
on demand") enabled on-demand allocation of the hardware table,
however it missed the other table so it has still been fully allocated
at the boot time. This fixes the issue by allocating a single level,
just like we do for the hardware table.

Fixes: a68bd1267b ("powerpc/powernv/ioda: Allocate indirect TCE levels on demand")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Alexey Kardashevskiy 2018-09-28 16:45:39 +10:00 • committed by Greg Kroah-Hartman

parent d2cf1056d7

commit 4fe87824d1

1 changed files with 1 additions and 1 deletions

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arch/powerpc/platforms/powernv/pci-ioda-tce.c

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