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>,
Sam Bobroff <sbobroff@linux.ibm.com>,
David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH kernel v3 0/3] powerpc/ioda2: Yet another attempt to allow DMA masks between 32 and 59
Date: Thu, 30 May 2019 17:03:52 +1000 [thread overview]
Message-ID: <20190530070355.121802-1-aik@ozlabs.ru> (raw)
This is an attempt to allow DMA masks between 32..59 which are not large
enough to use either a PHB3 bypass mode or a sketchy bypass. Depending
on the max order, up to 40 is usually available.
This is based on v5.2-rc2.
Please comment. Thanks.
Alexey Kardashevskiy (3):
powerpc/iommu: Allow bypass-only for DMA
powerpc/powernv/ioda2: 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/dma-iommu.c | 11 ++--
arch/powerpc/kernel/iommu.c | 58 +++++++++++++------
arch/powerpc/platforms/powernv/pci-ioda-tce.c | 20 +++----
arch/powerpc/platforms/powernv/pci-ioda.c | 40 +++++++++++--
6 files changed, 95 insertions(+), 44 deletions(-)
--
2.17.1
next reply other threads:[~2019-05-30 7:05 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 7:03 Alexey Kardashevskiy [this message]
2019-05-30 7:03 ` [PATCH kernel v3 1/3] powerpc/iommu: Allow bypass-only for DMA Alexey Kardashevskiy
2019-06-03 2:03 ` David Gibson
2019-05-30 7:03 ` [PATCH kernel v3 2/3] powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA window Alexey Kardashevskiy
2019-07-08 7:01 ` alistair
2019-05-30 7:03 ` [PATCH kernel v3 3/3] powerpc/powernv/ioda2: Create bigger default window with 64k IOMMU pages Alexey Kardashevskiy
2019-07-08 7:01 ` alistair
2019-07-09 0:57 ` Alexey Kardashevskiy
2019-06-06 4:11 ` [PATCH kernel v3 0/3] powerpc/ioda2: Yet another attempt to allow DMA masks between 32 and 59 Shawn Anastasio
2019-06-06 7:17 ` Alistair Popple
2019-06-06 12:07 ` Oliver
2019-06-07 1:41 ` Alistair Popple
2019-06-10 5:19 ` Alexey Kardashevskiy
2019-06-12 5:05 ` Shawn Anastasio
2019-06-12 6:16 ` Oliver O'Halloran
2019-06-12 19:14 ` Shawn Anastasio
2019-06-12 7:07 ` Alexey Kardashevskiy
2019-06-12 19:15 ` Shawn Anastasio
2019-06-18 4:26 ` Shawn Anastasio
2019-06-18 6:39 ` Alexey Kardashevskiy
2019-06-18 7:00 ` Shawn Anastasio
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