From: sricharan@codeaurora.org (Sricharan R)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/8] IOMMU Probe deferral support
Date: Tue, 9 Aug 2016 04:19:02 +0530 [thread overview]
Message-ID: <1470696550-3416-1-git-send-email-sricharan@codeaurora.org> (raw)
This is on top initial post from Laurent Pinchart[1]. This is
a try to see if the iommu ops configuration for the devices
can be called at a generic place so that it works for all
busses. The dma_configure_ops for a device is now called during
the device_attach callback just before the probe of the
bus/driver is called. Similarly dma_deconfigure is called during
device_detach. of_configure_dma_masks is still called for each
of the busses separately, but that can be combined with calling
dma_configure_ops if its safe to have masks not set till probe time.
Also based on comments [2] from last post [3], add_device callback
is called at the point when the ops for that iommu is found.
Have tested this with arm-smmu on platform bus and yet to test for
other busses (pci, amba), but those busses go through the same path
as well.
[1] http://lists.linuxfoundation.org/pipermail/iommu/2015-May/013016.html
[2] http://www.spinics.net/lists/arm-kernel/msg499962.html,
[3] http://www.spinics.net/lists/arm-kernel/msg506072.html
Laurent Pinchart (5):
arm: dma-mapping: Don't override dma_ops in arch_setup_dma_ops()
of: dma: Move range size workaround to of_dma_get_range()
of: dma: Make of_dma_deconfigure() public
of: dma: Split of_configure_dma() into mask and ops configuration
iommu: of: Handle IOMMU lookup failure with deferred probing or error
Sricharan R (3):
drivers: platform: Configure dma operations at probe time
drivers: platform: Remove call to of_dma_(con/decon)figure_ops
drivers: iommu: arm-smmu: Set iommu_ops in probe
arch/arm/mm/dma-mapping.c | 9 ++++++
drivers/base/dd.c | 11 +++++++
drivers/base/dma-mapping.c | 11 +++++++
drivers/iommu/arm-smmu.c | 17 ++--------
drivers/iommu/of_iommu.c | 21 ++++++++++---
drivers/of/address.c | 20 ++++++++++--
drivers/of/device.c | 77 ++++++++++++++++++++++++++++-----------------
drivers/of/platform.c | 11 ++-----
drivers/pci/probe.c | 3 +-
include/linux/dma-mapping.h | 3 ++
include/linux/of_device.h | 14 +++++++--
11 files changed, 136 insertions(+), 61 deletions(-)
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2016-08-08 22:49 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-08 22:49 Sricharan R [this message]
2016-08-08 22:49 ` [PATCH 1/8] arm: dma-mapping: Don't override dma_ops in arch_setup_dma_ops() Sricharan R
2016-09-02 8:16 ` Marek Szyprowski
2016-09-07 6:24 ` Sricharan
2016-08-08 22:49 ` [PATCH 2/8] of: dma: Move range size workaround to of_dma_get_range() Sricharan R
2016-08-08 22:49 ` [PATCH 3/8] of: dma: Make of_dma_deconfigure() public Sricharan R
2016-08-08 22:49 ` [PATCH 4/8] of: dma: Split of_configure_dma() into mask and ops configuration Sricharan R
2016-08-12 7:31 ` Tomasz Figa
2016-08-12 15:18 ` Laurent Pinchart
2016-08-12 15:45 ` Sricharan
2016-09-09 6:53 ` Magnus Damm
2016-09-09 9:48 ` Sricharan
2016-08-08 22:49 ` [PATCH 5/8] drivers: platform: Configure dma operations at probe time Sricharan R
2016-08-16 9:25 ` Laurent Pinchart
2016-08-16 12:28 ` Sricharan
2016-08-08 22:49 ` [PATCH 6/8] drivers: platform: Remove call to of_dma_(con/decon)figure_ops Sricharan R
2016-08-12 7:33 ` Tomasz Figa
2016-08-12 15:42 ` Sricharan
2016-08-08 22:49 ` [PATCH 7/8] iommu: of: Handle IOMMU lookup failure with deferred probing or error Sricharan R
2016-08-12 7:46 ` Tomasz Figa
2016-08-12 15:40 ` Sricharan
2016-09-02 8:09 ` Marek Szyprowski
2016-09-07 6:16 ` Sricharan
2016-09-02 12:52 ` Marek Szyprowski
2016-09-07 6:29 ` Sricharan
2016-08-08 22:49 ` [PATCH 8/8] drivers: iommu: arm-smmu: Set iommu_ops in probe Sricharan R
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