Commit Graph

21 Commits

Author SHA1 Message Date
Joerg Roedel eb1eb7ae65 iommu/amd: Check if IOAPIC information is correct
When the IOAPIC information provided in the IVRS table is
not correct or not complete the system may not boot at all
when interrupt remapping is enabled. So check if this
information is correct and print out a firmware bug message
when it is not.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28 17:31:09 +02:00
Hiroshi Doyu 0760e8faa9 iommu/tegra: smmu: Add device tree support for SMMU
The necessary info is expected to pass from DT.

For more precise resource reservation, there shouldn't be any
overlapping of register range between SMMU and MC. SMMU register
offset needs to be calculated correctly, based on its register bank.

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-06-25 13:50:43 +02:00
Hiroshi Doyu 4e0ee78f2a iommu: Add DMA window parser, of_get_dma_window()
This code was based on:
    "arch/microblaze/kernel/prom_parse.c"
    "arch/powerpc/kernel/prom_parse.c"

Can replace "of_parse_dma_window()" in the above. This supports
different formats flexibly. "prefix" can be configured if any. "busno"
and "index" are optionally specified. Set NULL and 0 if not used.

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-06-25 13:50:28 +02:00
Linus Torvalds ce53044c68 arm-soc: driver specific updates
These changes are specific to some driver that may be used by multiple
 boards or socs. The most significant change in here is the move of the
 samsung iommu code from a platform specific in-kernel interface to the
 generic iommu subsystem.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPuevXAAoJEIwa5zzehBx3D8YQAKfoY3TFjJ9KmJgk69/pc7cf
 Of0rvX+35NezGFljIyRdspz+DsV+vhJravwdVxOagRKvVBOb9qnZIXnl3gkLnTw4
 dCVMFMqCwXhBeXlXCzHSeRmt2+4/fmJnr7jr4xh9omOAJ9BZv5ftmKNW4zP5wr1L
 +9HBwzkxlVisR4NCz2q66YBjsV2dXA3dv2hZxEFkUdQFYJGqZoUXLYHF9yno20i3
 knKNXEyAFYFUKHiFVBQJ1tYGmZlaIjw14g+GTqzZay2Pi/HjUXfrPd0VwNkBzZf/
 H1N3/cf4GJ2+K/zYqh+H/Xjf/Fjkp1dFNhlUQ7+l5Jwbu7C1B2euvwTO4OaqrfdD
 7eqG3+uIKhPO2Z8ZySLFgx4ghybtwgZrAwOjsa+ymTugqPbiWYB/zZR1iWu5DMk/
 TnNb6P3ciP+WMpoMFh1kXRc/eCCCHtuQ0rLRxizSX6HIpxWvjYFNLH7L3wS+KtlB
 7vsS764d1JFW318bsdBi+V/LWRVXeSWWetTzdzDcM/Syz3ZqfPy7e3Ge6qx0lvYe
 5ojgzKwVqpJenZdt91UC16cMXNqDTzmZObz6LOCmVm1mB5kYSgEHYxAQQvuGFjXT
 28kGyBQNsBboJGaYh2O/CTsVXnHnaPXrtDDWMDacWNwwPYnnA2L8lUNfAg1DgA1j
 Z6CO8Knfct01EpQLtybK
 =hgkg
 -----END PGP SIGNATURE-----

Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc driver specific updates from Olof Johansson:
 "These changes are specific to some driver that may be used by multiple
  boards or socs.  The most significant change in here is the move of
  the samsung iommu code from a platform specific in-kernel interface to
  the generic iommu subsystem."

Fix up trivial conflicts in arch/arm/mach-exynos/Kconfig

* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
  mmc: dt: Consolidate DT bindings
  iommu/exynos: Add iommu driver for EXYNOS Platforms
  ARM: davinci: optimize the DMA ISR
  ARM: davinci: implement DEBUG_LL port choice
  ARM: tegra: Add SMMU enabler in AHB
  ARM: tegra: Add Tegra AHB driver
  Input: pxa27x_keypad add choice to set direct_key_mask
  Input: pxa27x_keypad direct key may be low active
  Input: pxa27x_keypad bug fix for direct_key_mask
  Input: pxa27x_keypad keep clock on as wakeup source
  ARM: dt: tegra: pinmux changes for USB ULPI
  ARM: tegra: add USB ULPI PHY reset GPIO to device tree
  ARM: tegra: don't hard-code USB ULPI PHY reset_gpio
  ARM: tegra: change pll_p_out4's rate to 24MHz
  ARM: tegra: fix pclk rate
  ARM: tegra: reparent sclk to pll_c_out1
  ARM: tegra: Add pllc clock init table
  ARM: dt: tegra cardhu: basic audio support
  ARM: dt: tegra30.dtsi: Add audio-related nodes
  ARM: tegra: add AUXDATA required for audio
  ...
2012-05-26 12:22:27 -07:00
KyongHo Cho 2a96536e77 iommu/exynos: Add iommu driver for EXYNOS Platforms
This is the System MMU driver and IOMMU API implementation for
EXYNOS SoC platforms. EXYNOS platforms has more than 10 System
MMUs dedicated for each multimedia accelerators.

The System MMU driver is already in arc/arm/plat-s5p but it is
moved to drivers/iommu due to Ohad Ben-Cohen gathered IOMMU
drivers there.

Any device driver in EXYNOS platforms that needs to control its
System MMU must call platform_set_sysmmu() to inform System MMU
driver who will control it. platform_set_sysmmu() is defined in
<mach/sysmmu.h>

Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-12 05:56:09 +09:00
Masanari Iida 59bf896406 Fix "the the" in various Kconfig
Fix typo "the the" in various Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-18 14:12:27 +02:00
Hiroshi DOYU 7a31f6f48b ARM: IOMMU: Tegra30: Add iommu_ops for SMMU driver
Tegra 30 IOMMU H/W, SMMU (System Memory Management Unit). This patch
implements struct iommu_ops for SMMU for the upper IOMMU API.

This H/W module supports multiple virtual address spaces(domain x4),
and manages 2 level H/W translation pagetable.

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-01-26 13:59:02 +01:00
Hiroshi DOYU d53e54b4d4 ARM: IOMMU: Tegra20: Add iommu_ops for GART driver
Tegra 20 IOMMU H/W, GART (Graphics Address Relocation Table). This
patch implements struct iommu_ops for GART for the upper IOMMU API.

This H/W module supports only single virtual address space(domain),
and manages a single level 1-to-1 mapping H/W translation page table.

[With small fixes by Joerg Roedel]

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-01-26 13:50:28 +01:00
Joerg Roedel 8736b2c331 iommu/amd: Implement notifiers for IOMMUv2
Since pages are not pinned anymore we need notifications
when the VMM changes the page-tables. Use mmu_notifiers for
that.
Also use the task_exit notifier from the profiling subsystem
to shutdown all contexts related to this task.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-14 12:09:17 +01:00
Joerg Roedel e3c495c74b iommu/amd: Add driver stub for AMD IOMMUv2 support
Add a Kconfig option for the optional driver. Since it is
optional it can be compiled as a module and will only be
loaded when required by another driver.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-12 15:19:07 +01:00
Joerg Roedel 52815b7568 iommu/amd: Add support for IOMMUv2 domain mode
This patch adds support for protection domains that
implement two-level paging for devices.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-12 15:18:57 +01:00
Linus Torvalds 0cfdc72439 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (33 commits)
  iommu/core: Remove global iommu_ops and register_iommu
  iommu/msm: Use bus_set_iommu instead of register_iommu
  iommu/omap: Use bus_set_iommu instead of register_iommu
  iommu/vt-d: Use bus_set_iommu instead of register_iommu
  iommu/amd: Use bus_set_iommu instead of register_iommu
  iommu/core: Use bus->iommu_ops in the iommu-api
  iommu/core: Convert iommu_found to iommu_present
  iommu/core: Add bus_type parameter to iommu_domain_alloc
  Driver core: Add iommu_ops to bus_type
  iommu/core: Define iommu_ops and register_iommu only with CONFIG_IOMMU_API
  iommu/amd: Fix wrong shift direction
  iommu/omap: always provide iommu debug code
  iommu/core: let drivers know if an iommu fault handler isn't installed
  iommu/core: export iommu_set_fault_handler()
  iommu/omap: Fix build error with !IOMMU_SUPPORT
  iommu/omap: Migrate to the generic fault report mechanism
  iommu/core: Add fault reporting mechanism
  iommu/core: Use PAGE_SIZE instead of hard-coded value
  iommu/core: use the existing IS_ALIGNED macro
  iommu/msm: ->unmap() should return order of unmapped page
  ...

Fixup trivial conflicts in drivers/iommu/Makefile: "move omap iommu to
dedicated iommu folder" vs "Rename the DMAR and INTR_REMAP config
options" just happened to touch lines next to each other.
2011-10-30 15:46:19 -07:00
Suresh Siddha d3f138106b iommu: Rename the DMAR and INTR_REMAP config options
Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent
with the other IOMMU options.

Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the
irq subsystem name.

And define the CONFIG_DMAR_TABLE for the common ACPI DMAR
routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-21 10:22:03 +02:00
Joerg Roedel 7b6d45f139 iommu/omap: Fix build error with !IOMMU_SUPPORT
Without this patch it is possible to select the VIDEO_OMAP3
driver which then selects OMAP_IOVMM. But the omap iommu
driver is not compiled without IOMMU_SUPPORT enabled. Fix
that by forcing OMAP_IOMMU and OMAP_IOVMM are enabled before
VIDEO_OMAP3 can be selected.

Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-09-14 16:06:04 +02:00
Ohad Ben-Cohen 024ae884a6 iommu: omap: add Kconfig OMAP dependency
Make CONFIG_OMAP_IOMMU depend on CONFIG_ARCH_OMAP so other
allmodconfig builds won't fail.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-08-29 12:38:19 +02:00
Ohad Ben-Cohen fcf3a6ef4a omap: iommu/iovmm: move to dedicated iommu folder
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 <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-08-26 11:46:00 +02:00
Joerg Roedel 68255b6287 iommu: Move iommu Kconfig entries to submenu
For better navigation this patch moves the drivers/iommu
drivers into its own submenu in Kconfig.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-06-21 10:49:30 +02:00
Ohad Ben-Cohen 166e9278a3 x86/ia64: intel-iommu: move to drivers/iommu/
This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.

Note: to move intel-iommu.c, the declaration of pci_find_upstream_pcie_bridge()
has to move from drivers/pci/pci.h to include/linux/pci.h. This is handled
in this patch, too.

As suggested, also drop DMAR's EXPERIMENTAL tag while we're at it.

Compile-tested on x86_64.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-06-21 10:49:30 +02:00
Ohad Ben-Cohen 29b68415e3 x86: amd_iommu: move to drivers/iommu/
This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.

Compile-tested on x86_64.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-06-21 10:49:29 +02:00
Ohad Ben-Cohen b10f127e1a msm: iommu: move to drivers/iommu/
This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.

Compile-tested for MSM8X60.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-06-21 10:48:50 +02:00
Ohad Ben-Cohen ab493a0f0f drivers: iommu: move to a dedicated folder
Create a dedicated folder for iommu drivers, and move the base
iommu implementation over there.

Grouping the various iommu drivers in a single location will help
finding similar problems shared by different platforms, so they
could be solved once, in the iommu framework, instead of solved
differently (or duplicated) in each driver.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-06-14 14:47:41 +02:00