20 Jun, 2013
1 commit
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This patch fixes the checkpatch warnings in omap iommu
code, most of them are related to broken strings.Signed-off-by: Suman Anna
Signed-off-by: Joerg Roedel
21 Nov, 2012
4 commits
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Move iommu/iovmm headers from plat/ to platform_data/ as part of the
single zImage work.Partially based on an earlier version by Ido Yariv .
Cc: Ido Yariv
Cc: Laurent Pinchart
Cc: Omar Ramirez Luna
Acked-by: Mauro Carvalho Chehab
Acked-by: Ohad Ben-Cohen
Acked-by: Joerg Roedel
Signed-off-by: Tony Lindgren -
This file should not be in arch/arm. Move it to drivers/iommu
to allow making most of the header local to drivers/iommu.This is needed as we are removing plat and mach includes
from drivers for ARM common zImage support.Cc: Ido Yariv
Cc: Laurent Pinchart
Cc: Mauro Carvalho Chehab
Cc: Omar Ramirez Luna
Cc: linux-media@vger.kernel.org
Acked-by: Ohad Ben-Cohen
Acked-by: Joerg Roedel
Signed-off-by: Tony Lindgren -
Looks like the iommu framework does not have generic functions
exported for all the needs yet. The hardware specific functions
are defined in files like intel-iommu.h and amd-iommu.h. Follow
the same standard for omap-iommu.h.This is needed because we are removing plat and mach includes
for ARM common zImage support. Further work should continue
in the iommu framework context as only pure platform data will
be communicated from arch/arm/*omap*/* code to the iommu
framework.Cc: Ido Yariv
Cc: Laurent Pinchart
Cc: Omar Ramirez Luna
Cc: linux-media@vger.kernel.org
Acked-by: Mauro Carvalho Chehab
Acked-by: Ohad Ben-Cohen
Acked-by: Joerg Roedel
Signed-off-by: Tony Lindgren -
The iopgtable header file is only used by the iommu & iovmm drivers, so
move it to drivers/iommu/, as part of the single zImage effort.Cc: Laurent Pinchart
Cc: Mauro Carvalho Chehab
Cc: Omar Ramirez Luna
Signed-off-by: Ido Yariv
Acked-by: Ohad Ben-Cohen
Acked-by: Joerg Roedel
[tony@atomide.com: updated to be earlier in the series]
Signed-off-by: Tony Lindgren
09 Jan, 2012
1 commit
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Conflicts:
drivers/pci/hotplug/acpiphp_glue.c
14 Dec, 2011
1 commit
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Conflicts:
drivers/iommu/amd_iommu.c
05 Dec, 2011
1 commit
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Eliminate the public omap_find_iommu_device() method, and don't
expect clients to provide the omap_iommu handle anymore.Instead, OMAP's iommu driver now utilizes dev_archdata's private iommu
extension to be able to access the required iommu information.This way OMAP IOMMU users are now able to use the generic IOMMU API without
having to call any omap-specific binding method.Update omap3isp appropriately.
Signed-off-by: Ohad Ben-Cohen
Acked-by: Laurent Pinchart
Acked-by: Tony Lindgren
Cc: Hiroshi Doyu
10 Nov, 2011
1 commit
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When mapping a memory region, split it to page sizes as supported
by the iommu hardware. Always prefer bigger pages, when possible,
in order to reduce the TLB pressure.The logic to do that is now added to the IOMMU core, so neither the iommu
drivers themselves nor users of the IOMMU API have to duplicate it.This allows a more lenient granularity of mappings; traditionally the
IOMMU API took 'order' (of a page) as a mapping size, and directly let
the low level iommu drivers handle the mapping, but now that the IOMMU
core can split arbitrary memory regions into pages, we can remove this
limitation, so users don't have to split those regions by themselves.Currently the supported page sizes are advertised once and they then
remain static. That works well for OMAP and MSM but it would probably
not fly well with intel's hardware, where the page size capabilities
seem to have the potential to be different between several DMA
remapping devices.register_iommu() currently sets a default pgsize behavior, so we can convert
the IOMMU drivers in subsequent patches. After all the drivers
are converted, the temporary default settings will be removed.Mainline users of the IOMMU API (kvm and omap-iovmm) are adopted
to deal with bytes instead of page order.Many thanks to Joerg Roedel for significant review!
Signed-off-by: Ohad Ben-Cohen
Cc: David Brown
Cc: David Woodhouse
Cc: Joerg Roedel
Cc: Stepan Moskovchenko
Cc: KyongHo Cho
Cc: Hiroshi DOYU
Cc: Laurent Pinchart
Cc: kvm@vger.kernel.org
Signed-off-by: Joerg Roedel
09 Nov, 2011
1 commit
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Fix compile failure in drivers/iommu/omap-iommu-debug.c
because of missing module.h include.Signed-off-by: Ming Lei
Signed-off-by: Joerg Roedel
05 Sep, 2011
2 commits
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Users of the IOMMU API (kvm specifically) assume that iommu_unmap()
returns the order of the unmapped page.Fix omap_iommu_unmap() to do so and adopt omap-iovmm accordingly.
Signed-off-by: Ohad Ben-Cohen
Signed-off-by: Joerg Roedel -
omap_iovmm requires page-aligned buffers, and that sometimes causes
omap3isp failures (i.e. whenever the buffer passed from userspace is not
page-aligned).Remove this limitation by rounding the address of the first page entry
down, and adding the offset back to the device address.Signed-off-by: Laurent Pinchart
Acked-by: Hiroshi DOYU
[ohad@wizery.com: rebased, but tested only with aligned buffers]
[ohad@wizery.com: slightly edited the commit log]
Signed-off-by: Ohad Ben-Cohen
Signed-off-by: Joerg Roedel
26 Aug, 2011
3 commits
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Prepend 'omap_' to OMAP's 'struct iommu' and exposed API, to prevent
namespace pollution and generally to improve readability of the code
that still uses the driver directly.Update the users as needed as well.
Signed-off-by: Ohad Ben-Cohen
Acked-by: Laurent Pinchart
Acked-by: Hiroshi DOYU
Acked-by: Tony Lindgren
Signed-off-by: Joerg Roedel -
Remove unused functionality from OMAP's iovmm module.
The intention is to eventually completely replace iovmm with the
generic DMA-API, so new code that'd need this iovmm functionality
will have to extend the DMA-API instead.Signed-off-by: Ohad Ben-Cohen
Acked-by: Hiroshi DOYU
Acked-by: Tony Lindgren
Signed-off-by: Joerg Roedel -
Move OMAP's iommu drivers to the dedicated iommu drivers folder.
While OMAP's iovmm (virtual memory manager) driver does not strictly
belong to the iommu drivers folder, move it there as well, because
it's by no means OMAP-specific (in concept. technically it is still
coupled with OMAP's iommu).Eventually, iovmm will be completely replaced with the generic,
iommu-based, dma-mapping API.Signed-off-by: Ohad Ben-Cohen
Acked-by: Laurent Pinchart
Acked-by: Hiroshi DOYU
Acked-by: Tony Lindgren
Signed-off-by: Joerg Roedel