.@intel.com>
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/base/dd.c | 30 ++
1 file changed, 18 insertions(+), 12 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 16688f50729c..d9e76e9205c7 100644
--- a/drivers/
Hi Rafael,
On 2016-06-08 19:18, Rafael J. Wysocki wrote:
On Wed, Jun 8, 2016 at 12:25 PM, Marek Szyprowski
<m.szyprow...@samsung.com> wrote:
From: Krzysztof Kozlowski<k.kozlow...@samsung.com>
Allow drivers registering for certain runtime PM events of other
devices. Some driv
ed-by: Marek Szyprowski <m.szyprow...@samsung.com>
Just to keep my curiosity satisfied - what's the reason to use
big-endian on ARM?
Good luck with fixing the kernel and userspace codes, which usually
assume little-endian is the only possible order!
---
Cc: Marek Szyprowski <m.szypr
erform some necessary steps. For example
Exynos IOMMU has to save its context.
Based on previous work of Sylwester Nawrocki <s.nawro...@samsung.com>.
Signed-off-by: Krzysztof Kozlowski <k.kozlow...@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
prevents respective power domains to be turned off when master's
device is not used.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 211 +--
1 file changed, 101 insertions(+), 110 deletions(-)
diff --git a/d
Remove excessive, useless debug about skipping TLB invalidation, which
is a normal situation when more aggressive power management is enabled.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/d
ement" thread:
http://www.spinics.net/lists/arm-kernel/msg505695.html
Best regards
Marek Szyprowski
Samsung R Institute Poland
Krzysztof Kozlowski (1):
PM / Runtime: Add notifiers for device runtime PM events
Marek Szyprowski (2):
iommu/exynos: Remove excessive, useless debug
iommu/e
Register iommu_ops at the end of successful probe instead of doing that
unconditionally. This makes Exynos IOMMU driver ready for deferred probe
caused by not-yet-available clocks.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
I'm sorry for the confussing patch number. This
() it with BUG_ON().
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 54 +---
1 file changed, 26 insertions(+), 28 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 018bcd
If SYSMMU controller is not active, there is no point in enabling master's
clock just for doing the the of internal state. This patch moves enabling
that clock to the block which actually does the register access.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers
regards
Marek Szyprowski
Samsung R Institute Poland
Marek Szyprowski (3):
iommu/exynos: Return proper errors from getting clocks
iommu/exynos: Fix master clock management for inactive SYSMMU
iommu/exynos: Prepare clocks when needed, not in driver probe
drivers/iommu/exynos-iommu.c | 95
This patch reworks driver probe code to propagate error codes from
clk_get() operation. This will allow to properly handle deferred probe
in the future.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.
by such operation.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
CC: sta...@vger.kernel.org # v4.2+
---
drivers/iommu/exynos-iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 558a40d3a6a0..d365c40a7b84
iommu controllers cannot get their clocks early enough.
Tested-by: Marek Szyprowski <m.szyprow...@samsung.com>
Now associating a group with an master has become mandatory and happens
when the master is added to the bus using BUS_ADD_DEVICE from iommu core.
But the iommu has to be ready before this
Hi Lorenzo,
On 2016-04-19 13:30, Lorenzo Pieralisi wrote:
Hi Marek,
On Tue, Apr 19, 2016 at 10:28:02AM +0200, Marek Szyprowski wrote:
Hello,
On 2016-04-14 19:25, Lorenzo Pieralisi wrote:
On systems booting with ACPI, the IOMMU drivers require the same
kind of id mapping carried out
gmail.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Hanjun Guo <hanjun@linaro.org>
Cc: Rob Herring <robh...@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlow...@samsung.com>
Cc: Robin Murphy <robin.mur...@arm.com>
Cc: Tomasz Nowicki <t...@semihalf.com>
Cc: Joe
Hello,
On 2016-03-15 12:18, Magnus Damm wrote:
Hi Marek,
On Fri, Feb 19, 2016 at 5:22 PM, Marek Szyprowski
<m.szyprow...@samsung.com> wrote:
This patch replaces ARM-specific IOMMU-based DMA-mapping implementation
with generic IOMMU DMA-mapping code shared with ARM64 architecture. Th
Acked-by: Marek Szyprowski <m.szyprow...@samsung.com>
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index b066504..cb57bda 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1347,8 +1347,8 @@ static int __init exynos_iommu_of_setup(struct
Drivers should use generic readl/writel calls to access HW registers, so
replace all __raw_readl/writel with generic version.
Suggested-by: Arnd Bergmann <a...@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-
, which rely on initialization from generic arch_setup_dna_ops()
interface. Code, which used old arm_iommu_* functions must be updated to
new interface.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
arch/arm/Kconfig | 22 +-
arch/arm/include/asm/de
on of real devices for DMA-mapping operations, such hacks are no longer
needed. The only requirement is to have all the devices, which build
Exynos DRM, attached to the same IOMMU domain (to share IO address space).
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/g
eeded
(there are all needed patches for Exynos subarch, which have been posted
as separate patchsets):
https://git.linaro.org/people/marek.szyprowski/linux-srpol.git
v4.5-dma-iommu-unification
Patches are based on Linux v4.5-rc4 vanilla tree.
Best regards
Marek Szyprowski
Samsung R Institute Po
This patch moves all the IOMMU-based DMA-mapping code from arch/arm64/mm
to drivers/iommu/dma-iommu-ops.c. This way it can be easily shared with
ARM architecture, which will also use them.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
arch/arm64/include/asm/dma-mapping.h
Exynos SYSMMU bindings documentation was merged before generic IOMMU
binding have been introduced. This patch updates documentation to match
current state.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
.../devicetree/bindings/iommu/samsung,sysmmu.txt
This patch adds support for DMA domain type. Such domain have DMA cookie
prepared and can be used by generic DMA-IOMMU glue layer.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 19 +++
1 file changed, 15 insertions(+), 4 del
5433 SoCs.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
.../devicetree/bindings/iommu/samsung,sysmmu.txt | 5 +-
drivers/iommu/Kconfig | 2 +-
drivers/iommu/exynos-iommu.c | 187 +++--
3 files change
IOMMU core calls attach_device callback without detaching device from
the previous domain. This patch adds support for such unballanced calls.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 72
This patch provides a new implementation for page fault handing code. The
new implementation is ready for future extensions. No functional changes
have been made.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c
SYSMMU on some SoCs reports bogus values in VERSION register. Force
hardware version to 1.0 for such controllers. This patch also moves reading
version register to driver's probe() function.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.
All clock API function can be called on NULL clock, so simplify code avoid
checking of master clock presence.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 32
1 file changed, 12 insertions(+), 20 deletions(-)
This patch rewrites sysmmu_init_config function to make it easier to read
and understand.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 25 +
1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers
This patch simplifies the code for handling of flpdcache invalidation.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 13 -
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/
This patch replaces custom code in add_device implementation with
iommu_group_get_for_dev() call and provides the needed callback.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 27 ---
1 file changed, 16 insertions(
This patch changes some internal functions to have access to the state of
sysmmu device instead of having only it's registers. This will make the
code ready for future extensions.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.
architecture.
Best regards
Marek Szyprowski
Samsung R Institute Poland
Changelog:
v2:
- added support for multiple calls of device_attach (without detach),
needed for default domain handling in iommu core (patch no 13), more
information in the following thread:
https://lists.linaro.org
because all SYSMMU controllers are in the same address space (where
DMA address equals physical address) and the DMA-mapping calls are done
mainly to flush CPU cache to make changes visible to SYSMMU controllers.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-i
Hello,
On 2016-02-17 12:14, Joerg Roedel wrote:
On Wed, Feb 17, 2016 at 08:35:10AM +0100, Marek Szyprowski wrote:
Huh, I wasn't aware of this change in the iommu drivers api. For some
drivers attach/detach callbacks does something more than just programming
page table base register, like
Hello,
On 2016-02-16 16:59, Joerg Roedel wrote:
On Tue, Feb 16, 2016 at 03:40:31PM +0100, Marek Szyprowski wrote:
This patch ensures that devices attached to the default_domain will be
first detached from it before attaching to new domain. To avoid forward
declaration, __iommu_attach_group
This patch provides a new implementation for page fault handing code. The
new implementation is ready for future extensions. No functional changes
have been made.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c
5433 SoCs.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
.../devicetree/bindings/iommu/samsung,sysmmu.txt | 5 +-
drivers/iommu/Kconfig | 2 +-
drivers/iommu/exynos-iommu.c | 195 +++--
3 files change
This patch changes some internal functions to have access to the state of
sysmmu device instead of having only it's registers. This will make the
code ready for future extensions.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.
This patch replaces custom code in add_device implementation with
iommu_group_get_for_dev() call and provides the needed callback.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 27 ---
1 file changed, 16 insertions(
This patch adds support for DMA domain type. Such domain have DMA cookie
prepared and can be used by generic DMA-IOMMU glue layer.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 19 +++
1 file changed, 15 insertions(+), 4 del
Add Marek Szyprowski as maintainer for Exynos IOMMU driver.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
MAINTAINERS | 6 ++
1 file changed, 6 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 7bd927e..1e9c4df 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -
This patch rewrites sysmmu_init_config function to make it easier to read
and understand.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 25 +
1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers
because all SYSMMU controllers are in the same address space (where
DMA address equals physical address) and the DMA-mapping calls are done
mainly to flush CPU cache to make changes visible to SYSMMU controllers.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-i
This patch simplifies the code for handling of flpdcache invalidation.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 13 -
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/
All clock API function can be called on NULL clock, so simplify code avoid
checking of master clock presence.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/exynos-iommu.c | 32
1 file changed, 12 insertions(+), 20 deletions(-)
Exynos SYSMMU bindings documentation was merged before generic IOMMU
binding have been introduced. This patch updates documentation to match
current state.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
.../devicetree/bindings/iommu/samsung,sysmmu.txt
architecture.
Best regards
Marek Szyprowski
Samsung R Institute Poland
Patch summary:
Marek Szyprowski (11):
iommu: exynos: rework iommu group initialization
iommu: exynos: add support for IOMMU_DOMAIN_DMA domain type
iommu: exynos: remove ARM-specific cache flush interface
iommu: exynos
Szyprowski
Samsung R Institute Poland
Patch summary:
Marek Szyprowski (2):
iommu: call detach also for default_domain before attaching to new one
iommu: fix default domain handling in __iommu_detach_group()
drivers/iommu/iommu.c | 48 +++-
1 file changed
This patch ensures that devices attached to the default_domain will be
first detached from it before attaching to new domain. To avoid forward
declaration, __iommu_attach_group() function has been moved to new place
in the source code.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.
This patch ensures that all devices will be first detached from the
provided domain and then attached to the default_domain if such has been
provided.
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/iommu/iommu.c | 12 ++--
1 file changed, 6 insertions
parameters like per-page offset and dma address/len.
Maybe it would be better if something like page vector (or PFN vector to
solve
the problem of mapping buffers that cannot be described by pages) have been
introduced and operations like dma_map_vector() will make thing much
more clear.
I ca
add a check in videobuf2-dc.
Best regards
--
Marek Szyprowski, PhD
Samsung R Institute Poland
On 2015-11-09 15:18, Laurent Pinchart wrote:
Hello everybody,
Ping ?
On Tuesday 13 October 2015 16:18:36 Laurent Pinchart wrote:
The maximum DMA segment size controls the IOMMU mapping granularity.
Hello,
On 2015-06-29 10:35, Joerg Roedel wrote:
Hi Marek,
On Thu, Jun 25, 2015 at 03:10:44PM +0200, Marek Szyprowski wrote:
+ /* skip devices which doesn't have sysmmu controller */
if (!has_sysmmu(dev))
- return -ENODEV;
+ return 0;
Thanks
skip them gently instead of returning error, which would
be propagated up to bus_set_iommu() and cause initialization failure.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
Please queue this patch to v4.2-rcX line. It fixes regression introduced
by a commit merged in parallel
Hello,
On 2015-06-12 15:51, Inki Dae wrote:
On 2015년 06월 12일 21:10, Inki Dae wrote:
On 2015년 06월 12일 18:07, Marek Szyprowski wrote:
One should not do any assumptions on the stare of the fimd hardware
during driver initialization, so to properly reset fimd before enabling
IOMMU, one should
() function to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez Canillas javier.marti...@collabora.co.uk
---
Changelog:
v4:
- added temporary changing of ctx-pipe to -1
Hello,
On 2015-06-11 17:04, Inki Dae wrote:
On 2015년 06월 03일 17:26, Marek Szyprowski wrote:
One should not do any assumptions on the stare of the fimd hardware
during driver initialization, so to properly reset fimd before enabling
IOMMU, one should ensure that all power domains and clocks
() function to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez Canillas javier.marti...@collabora.co.uk
---
Changelog:
v3 (alternative):
- araranged code by moving fimd_
() function to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez Canillas javier.marti...@collabora.co.uk
---
Changelog:
v3:
- replaced forward declaration and calls
Hello,
On 2015-06-12 14:10, Inki Dae wrote:
On 2015년 06월 12일 18:07, Marek Szyprowski wrote:
One should not do any assumptions on the stare of the fimd hardware
during driver initialization, so to properly reset fimd before enabling
IOMMU, one should ensure that all power domains and clocks
Hello,
On 2015-06-04 15:13, Inki Dae wrote:
On 2015년 06월 04일 22:08, Inki Dae wrote:
On 2015년 06월 03일 17:26, Marek Szyprowski wrote:
One should not do any assumptions on the stare of the fimd hardware
during driver initialization, so to properly reset fimd before enabling
IOMMU, one should
() function to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez Canillas javier.marti...@collabora.co.uk
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 22
This patch adds code, which detach sub-device nodes from default iommu
domain if such has been configured. This lets Exynos DRM driver to properly
attach sub-devices to its own, common for all sub-devices domain.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez
DRM Exynos driver is relying on dma-mapping internal structures when used
with IOMMU enabled. This patch partially hides dma-mapping internal things
by using proper get_dma_ops/set_dma_ops calls.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/gpu/drm/exynos
rebased onto latest exynos-drm-next branch
with atomic mode setting patches applied.
Best regards
Marek Szyprowski
Samsung RD Institute Poland
Marek Szyprowski (3):
drm/exynos: fimd: ensure proper hw state in fimd_clear_channel()
drm/exynos: iommu: detach from default dma-mapping domain
-mapping internals from Exynos DRM driver, a direct check for NULL
has been replaced by more error-proof comparison of dma_get_ops()
values.
Inki: could you queue those patches to exynos-drm-next and get them
merged to v4.2 to have it functional for the release?
Best regards
Marek Szyprowski
Samsung
to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez Canillas javier.marti...@collabora.co.uk
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 26
This patch adds code, which detach sub-device nodes from default iommu
domain if such has been configured. This lets Exynos DRM driver to properly
attach sub-devices to its own, common for all sub-devices domain.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Tested-by: Javier Martinez
This patch adds System MMU nodes that are specific to Exynos4210/4x12 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos4.dtsi| 118 ++
arch/arm/boot/dts
This patch adds System MMU nodes to all defined devices that are specific
to Exynos4415 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos4415.dtsi | 11 +++
1 file changed, 11 insertions
-domains')
and added properties to jpeg codec merged recently.
Best regards
Marek Szyprowski
Samsung RD Institute Poland
Marek Szyprowski (6):
ARM: Exynos: pm_domains: register power domain driver from
core_initcall
ARM: dts: exynos4: add sysmmu nodes
ARM: dts: exynos3250: add sysmmu
This patch adds System MMU nodes to all defined devices that are specific
to Exynos5250 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos5250.dtsi | 250 ++
1
This patch adds System MMU nodes to all defined devices that are specific
to Exynos5420/5800/5422 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos5420.dtsi | 183
with respective of_clk_* equivalents.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Reviewed-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/mach-exynos/pm_domains.c | 25 +++--
1 file changed, 7 insertions(+), 18 deletions(-)
diff --git a/arch/arm/mach-exynos
This patch adds System MMU nodes to the devices that are specific to
Exynos3250 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos3250.dtsi | 33 +
1 file changed, 33
hackery in dma-mapping internal structures in Exynos DRM driver, but this is
completely different story.
You can add the following tag for the of/iommu/dma-mapping patches:
Tested-by: Marek Szyprowski m.szyprow...@samsung.com
[1] http://www.spinics.net/lists/arm-kernel/msg382787.html
[2]
http
Hello,
On 2015-05-23 18:23, Laurent Pinchart wrote:
Hi Marek,
Thank you for the patch.
On Tuesday 19 May 2015 15:20:23 Marek Szyprowski wrote:
iommu_group_alloc might be called very early in case of iommu controllers
activated from of_iommu, so ensure that this part of subsystem is ready
Hello,
On 2015-05-06 16:01, Robin Murphy wrote:
Hi Marek,
On 04/05/15 09:15, Marek Szyprowski wrote:
Some devices (like frame buffers) are enabled by bootloader and
configured
to perform DMA operations automatically (like displaying boot logo or
splash
screen). Such devices operate
This patch adds implementation of of_xlate callback, which prepares
masters device for attaching to IOMMU. This callback is called during
creating devices from device tree.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 28
by the
respective driver.
This patch adds support for iommu-reserved-mapping, which can be used
to provide definitions for mappings that need to be created on system
boot to let such devices (enabled by bootloader) to operate properly
until respective driver is probed.
Signed-off-by: Marek Szyprowski
This patch adds System MMU nodes to all defined devices that are specific
to Exynos5420/5800/5422 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos5420.dtsi | 181
This patch adds System MMU nodes to all defined devices that are specific
to Exynos4415 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos4415.dtsi | 11 +++
1 file changed, 11 insertions
in system memory. To avoid IOMMU access fault
during system boot, additional identity mapping between system memory
and IO virtual address space must be created when IOMMU driver gets
enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow
-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index a5f0c99602c2..946f95ae46bc 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b
This patch adds System MMU nodes to all defined devices that are specific
to Exynos5250 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos5250.dtsi | 250 ++
1
This patch adds System MMU nodes to the devices that are specific to
Exynos3250 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos3250.dtsi | 22 ++
1 file changed, 22 insertions
iommu_group_alloc might be called very early in case of iommu controllers
activated from of_iommu, so ensure that this part of subsystem is ready
when devices are being populated from device-tree (core_initcall seems to
be okay for this case).
Signed-off-by: Marek Szyprowski m.szyprow
This patch removes reading of REG_MMU_VERSION register on every tlb
operation and caches SYSMMU version in driver's internal data.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 13 +
1 file changed, 5 insertions(+), 8 deletions(-)
diff
to ensure that any access to fimd
registers will be performed with clocks and power domains enabled.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 27 +--
1 file changed, 17 insertions(+), 10 deletions(-)
diff --git
booting to console.
Best regards
Marek Szyprowski
Samsung RD Institute Poland
Changelog:
v7:
- rebased onto v4.1-rc4
- restored iommu_gruops support
- added missing suspend/resume support patch
- rearanged patch order and squashed some patches for better code readability
- changed patch prefixes
Replace all remaining usage of struct iommu_domain with struct
exynos_iommu_domain in all internal structures and functions.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
Return fail if given master device passed to add_device/remove_device
callbacks doesn't has associated any sysmmu controller.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/iommu/exynos
This patch renames some variables to make the code easier to understand.
'domain' is replaced by 'iommu_domain' (more generic entity) and really
meaningless 'priv' by 'domain' to reflect its purpose.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 187
Add a few words of comment to all internal structures used by the driver.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 53 +---
1 file changed, 35 insertions(+), 18 deletions(-)
diff --git a/drivers/iommu
This patch removes two unneeded functions, which are not a part of
generic IOMMU API and were never used by any other driver.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 31 ---
1 file changed, 31 deletions(-)
diff
When system goes into suspend state, iommu should save it's state and
restore after system resume. This is handled by 'late' pm ops to ensure
that sysmmu will be suspended after its master devices and restored
before them.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers
This patch adds System MMU nodes that are specific to Exynos4210/4x12 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Krzysztof Kozlowski k.kozlow...@samsung.com
---
arch/arm/boot/dts/exynos4.dtsi| 118 ++
arch/arm/boot/dts
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