From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Alistair Popple <alistair@popple.id.au>,
Oliver O'Halloran <oohall@gmail.com>,
David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH kernel RFC 0/2] powerpc/ioda2: An attempt to allow DMA masks between 32 and 59
Date: Fri, 12 Apr 2019 16:44:06 +1000 [thread overview]
Message-ID: <20190412064408.85399-1-aik@ozlabs.ru> (raw)
This is an attempt to allow DMA mask 40 or similar which are not large
enough to use either a PHB3 bypass mode or a sketchy bypass.
This is based on sha1
582549e3fbe1 Linus Torvalds Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Please comment. Thanks.
Alexey Kardashevskiy (2):
powerpc/powernv/ioda: Allocate TCE table levels on demand for default
DMA window
powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU
pages
arch/powerpc/include/asm/iommu.h | 8 ++-
arch/powerpc/platforms/powernv/pci.h | 2 +-
arch/powerpc/kernel/iommu.c | 58 +++++++++++++------
arch/powerpc/platforms/powernv/pci-ioda-tce.c | 19 +++---
arch/powerpc/platforms/powernv/pci-ioda.c | 14 ++++-
5 files changed, 66 insertions(+), 35 deletions(-)
--
2.17.1
next reply other threads:[~2019-04-12 6:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 6:44 Alexey Kardashevskiy [this message]
2019-04-12 6:44 ` [PATCH kernel RFC 1/2] powerpc/powernv/ioda: Allocate TCE table levels on demand for default DMA window Alexey Kardashevskiy
2019-04-12 6:44 ` [PATCH kernel RFC 2/2] powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU pages Alexey Kardashevskiy
2019-04-12 7:16 ` [PATCH kernel RFC 0/2] powerpc/ioda2: An attempt to allow DMA masks between 32 and 59 Russell Currey
2019-04-23 0:58 ` Russell Currey
2019-04-26 7:39 ` Alexey Kardashevskiy
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