This patch modifies dma-mapping implementation on ARM architecture to
use common dma_map_ops structure and asm-generic/dma-mapping-common.h
helpers.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
arch/arm/Kconfig
Hello,
On Friday, February 24, 2012 1:50 PM Arnd Bergmann wrote:
On Friday 24 February 2012, Marek Szyprowski wrote:
+static struct page **__iommu_alloc_buffer(struct device *dev, size_t
+size, gfp_t gfp) {
+ struct page **pages;
+ int count = size PAGE_SHIFT
This patch modifies dma-mapping implementation on ARM architecture to
use common dma_map_ops structure and asm-generic/dma-mapping-common.h
helpers.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
---
arch/arm/Kconfig
This patch converts dma_alloc/free/mmap_{coherent,writecombine}
functions to use generic alloc/free/mmap methods from dma_map_ops
structure. A new DMA_ATTR_WRITE_COMBINE DMA attribute have been
introduced to implement writecombine methods.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
, v3.3-rc5
and
kgene/for-next). It looks that you have used some internal tree because cannot
find arch/arm/mach-exynos/clock-exynos5.c or
arch/arm/mach-exynos/clock-exynos4212.c
files in any of the public git repositories.
Best regards
--
Marek Szyprowski
Samsung Poland RD Center
,
+ .name = exynos-sysmmu,
+ }
+};
+
(snipped)
Best regards
--
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Samsung Poland RD Center
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Hello,
On Thursday, March 29, 2012 9:19 AM Hiroshi Doyu wrote:
On Wed, 29 Feb 2012 16:04:22 +0100
Marek Szyprowski m.szyprow...@samsung.com wrote:
This patch add a complete implementation of DMA-mapping API for
devices that have IOMMU support. All DMA-mapping calls are supported
regards
--
Marek Szyprowski
Samsung Poland RD Center
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This patch just performs a global cleanup in DMA mapping implementation
for ARM architecture. Some of the tiny helper functions have been moved
to the caller code, some have been merged together.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p
Add a common helper for dma-mapping core for mapping a coherent buffer
to userspace.
Reported-by: Subash Patel subas...@gmail.com
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/base/dma-coherent.c| 42
This patch modifies dma-mapping implementation on ARM architecture to
use common dma_map_ops structure and asm-generic/dma-mapping-common.h
helpers.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
---
arch/arm/Kconfig
This patch removes the need for offset parameter in dma bounce
functions. This is required to let dma-mapping framework on ARM
architecture use common, generic dma-mapping helpers.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
---
arch
This patch converts dma_alloc/free/mmap_{coherent,writecombine}
functions to use generic alloc/free/mmap methods from dma_map_ops
structure. A new DMA_ATTR_WRITE_COMBINE DMA attribute have been
introduced to implement writecombine methods.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
This patch converts all dma_sg methods to be generic (independent of the
current DMA mapping implementation for ARM architecture). All dma sg
operations are now implemented on top of respective
dma_map_page/dma_sync_single_for* operations from dma_map_ops structure.
Signed-off-by: Marek
Hi Arnd,
On Tuesday, April 10, 2012 2:24 PM Arnd Bergmann wrote:
On Tuesday 10 April 2012, Marek Szyprowski wrote:
This patch removes dma bounce hooks from the common dma mapping
implementation on ARM architecture and creates a separate set of
dma_map_ops for dma bounce devices
Hi Arnd,
On Tuesday, April 10, 2012 1:58 PM Arnd Bergmann wrote:
On Tuesday 10 April 2012, Marek Szyprowski wrote:
+/**
+ * arm_iommu_create_mapping
+ * @bus: pointer to the bus holding the client device (for IOMMU calls)
+ * @base: start address of the valid IO address space
Hi Arnd,
On Tuesday, April 10, 2012 1:43 PM Arnd Bergmann wrote:
On Tuesday 10 April 2012, Marek Szyprowski wrote:
This patch removes the need for offset parameter in dma bounce
functions. This is required to let dma-mapping framework on ARM
architecture use common, generic dma-mapping
Hi Arnd,
On Tuesday, April 10, 2012 1:47 PM Arnd Bergmann wrote:
On Tuesday 10 April 2012, Marek Szyprowski wrote:
This patch modifies dma-mapping implementation on ARM architecture to
use common dma_map_ops structure and asm-generic/dma-mapping-common.h
helpers.
Signed-off-by: Marek
Hi Arnd,
On Wednesday, April 11, 2012 2:19 PM Arnd Bergmann wrote:
On Wednesday 11 April 2012, Marek Szyprowski wrote:
Well, range sync functions are available from the early days of the dma
mapping api (at least that's what I've found reading the change log and
old patches
Hi!
These two patches fixes operation of the SYSMMU driver (v12 version [1])
with the new power domain driver based on generic power domains and
runtime pw, which has been merged to Linux kernel v3.4-rc1.
[1] https://lkml.org/lkml/2012/3/15/51
Best regards
Marek Szyprowski
Samsung Poland RD
Fix registration to runtime pw and add missing resume callback.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
---
drivers/iommu/exynos-iommu.c | 20 ++--
1 files changed, 18 insertions(+), 2 deletions(-)
diff --git
SYSMMU platform devices must be registered before setting up power
domains to let power domain driver to correctly register also SYSMMU
controller devices. This patch also registers SYSMMU controller devices
to respective power domains.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Szyprowski
Samsung Poland RD Center
Patch summary:
Marek Szyprowski (1):
ARM: Exynos4: integrate SYSMMU driver with DMA-mapping interface
arch/arm/mach-exynos/Kconfig |1 +
arch/arm/mach-exynos/clock-exynos4.c | 64 +++-
arch/arm/mach-exynos/dev
. This reduces the size of the io address space bitmap
to 4 KiB.
To solve the clock dependency issues, parent clocks have been added to each
SYSMMU controller bus clock. This models the true hardware behavior,
because client's device bus clock also gates the respective sysmmu bus
clock.
Signed-off-by: Marek
the kernel tree there aren't any users
that
map DMA memory through an IOMMU.
dma_map_sg is certainly the right interface to use, and Marek Szyprowski has
patches to make that work on ARM, hopefully going into v3.5, so you could
use those.
I've looked at Marek's patches but I don't
Hi Subash,
On Thursday, April 12, 2012 11:06 AM Subash Patel wrote:
On 04/11/2012 08:06 PM, Marek Szyprowski wrote:
This patch provides an provides setup code which assigns IOMMU controllers
to FIMC and MFC devices and enables IOMMU aware DMA-mapping for them.
It has been tested
Hi Arnd,
On Tuesday, April 10, 2012 1:58 PM Arnd Bergmann wrote:
On Tuesday 10 April 2012, Marek Szyprowski wrote:
+/**
+ * arm_iommu_create_mapping
+ * @bus: pointer to the bus holding the client device (for IOMMU calls)
+ * @base: start address of the valid IO address space
-Original Message-
From: Arnd Bergmann [mailto:a...@arndb.de]
Sent: Thursday, April 12, 2012 1:09 PM
To: Marek Szyprowski
Cc: 'Subash Patel'; linux-arm-ker...@lists.infradead.org;
linaro-mm-...@lists.linaro.org;
linux...@kvack.org; linux-a...@vger.kernel.org;
iommu
Hi,
On Monday, April 16, 2012 12:10 PM KyongHo Cho wrote:
On Wed, Apr 11, 2012 at 11:34 PM, Marek Szyprowski
m.szyprow...@samsung.com wrote:
SYSMMU platform devices must be registered before setting up power
domains to let power domain driver to correctly register also SYSMMU
controller
Replace all calls to printk with pr_* functions family.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
Acked-by: Arnd Bergmann a...@arndb.de
Tested-By: Subash Patel subash.ramasw...@linaro.org
---
arch/arm/mm/dma-mapping.c | 16
This patch just performs a global cleanup in DMA mapping implementation
for ARM architecture. Some of the tiny helper functions have been moved
to the caller code, some have been merged together.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p
/msg29903.html
v7:
http://www.spinics.net/lists/arm-kernel/msg162149.html
v8:
http://www.spinics.net/lists/arm-kernel/msg168478.html
Best regards
Marek Szyprowski
Samsung Poland RD Center
Patch summary:
Marek Szyprowski (10):
common: add dma_mmap_from_coherent() function
ARM: dma-mapping
://www.spinics.net/lists/arm-kernel/msg162149.html
v8:
http://www.spinics.net/lists/arm-kernel/msg168478.html
v9:
http://www.spinics.net/lists/linux-arch/msg17443.html
Best regards
Marek Szyprowski
Samsung Poland RD Center
Patch summary:
Marek Szyprowski (11):
common: add dma_mmap_from_coherent
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mm/dma-mapping.c |3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index db23ae4..7ec0863 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
Replace all uses of ~0 with DMA_ERROR_CODE, what should make the code
easier to read.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Kyungmin Park kyungmin.p...@samsung.com
Tested-By: Subash Patel subash.ramasw...@linaro.org
---
arch/arm/common/dmabounce.c|6
, not arch specific.
Please read more about bus notifiers. IMHO a good example is provided in
the following thread:
http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg12238.html
Best regards
--
Marek Szyprowski
Samsung Poland RD Center
___
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: Marek Szyprowski m.szyprow...@samsung.com
Signed-off-by: Andreas Herrmann andreas.herrm...@calxeda.com
Thanks pointing the issue and preparing the patch. I will push it to the
dma-mapping fixes branch.
---
arch/arm/mm/dma-mapping.c | 43 ---
1 file
is specified. So this fixes it by
unconditionally zeroing the allocated memory region.
Cc: Marek Szyprowski m.szyprow...@samsung.com
Cc: Konrad Rzeszutek Wilk konrad.w...@oracle.com
Cc: David Woodhouse dw...@infradead.org
Cc: Don Dutile ddut...@redhat.com
Cc: Thomas Gleixner t...@linutronix.de
Cc: Ingo
.
This parameter was already a bit misunderstood, so the overall result is
also a little improvement of the API.
Best regards
Marek Szyprowski, PhD
Samsung RD Institute Poland
Andreas Herrmann (1):
arm: dma-mapping: Add support to extend DMA IOMMU mappings
Marek Szyprowski (1):
arm: dma-mapping
anyway, also some
debug messages about extending bitmap]
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/include/asm/dma-iommu.h |8 ++-
arch/arm/mm/dma-mapping.c| 123 --
2 files changed, 110 insertions(+), 21 deletions(-)
diff
, Mar 14, 2014 at 12:00:16PM +0100, Laurent Pinchart wrote:
Hi Suman,
(CC'ing Joerg Roedel and Marek Szyprowski for the core IOMMU discussion)
On Thursday 13 March 2014 21:33:37 Suman Anna wrote:
On 03/07/2014 06:46 PM, Laurent Pinchart wrote:
Hello,
This patch set fixes miscellaneous
;
mapping-bits = BITS_PER_BYTE * bitmap_size;
+ mapping-size = mapping-bits PAGE_SHIFT;
spin_lock_init(mapping-lock);
Best regards
--
Marek Szyprowski, PhD
Samsung RD Institute Poland
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https
references of
mapping-size
with (mapping-bits PAGE_SHIFT), probably with some temporary variable to
make the code easier to understand? I've didn't apply your patch yet.
Best regards
--
Marek Szyprowski, PhD
Samsung RD Institute Poland
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Hello,
On 2014-04-23 12:04, Ritesh Harjani wrote:
Hi Marek/Will
On Wed, Apr 23, 2014 at 3:00 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
Hi Marek,
On Wednesday 23 April 2014 10:53:24 Marek Szyprowski wrote:
On 2014-04-22 10:53, Will Deacon wrote:
On Mon, Apr 21, 2014
;
spin_lock_init(mapping-lock);
Best regards
--
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Samsung RD Institute Poland
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If device has no max_seg_size set, we assume that there is no limit and
force it to DMA_BIT_MASK(32) to always use contiguous mappings in DMA
address space.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mm/dma-mapping.c | 16
1 file changed, 16 insertions
files changed, 1016 insertions(+), 356 deletions(-)
Best regards
Marek Szyprowski
Samsung RD Institute Poland
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devices in the system.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/include/asm/dma-iommu.h | 5 +
arch/arm/mm/dma-mapping.c| 31 +++
2 files changed, 36 insertions(+)
diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include
This patches change initialization time of power domain driver from client
device driver bind to device creation. This lets other core drivers to
register power domain notifiers before client driver is bound.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mach-exynos
Exynos DRM drivers do their own management of IO address space of all
controlled devices, so set DRIVER_HAS_OWN_IOMMU_MANAGER flag to instruct
IOMMU subsystem not to create any defaults for them.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/gpu/drm/exynos
This patch provides stubs returing errors for all iommu related arm
dma-mapping functions, which are used when CONFIG_ARM_DMA_USE_IOMMU is
not set. This let drivers to use common code for iommu and non-iommu
cases without additional ifdefs.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
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
This patch describes how generic iommu bindings are implemented by
Exynos SYSMMU driver.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
.../devicetree/bindings/iommu/samsung,sysmmu.txt | 93 +++---
1 file changed, 84 insertions(+), 9 deletions(-)
diff --git
This patch extends struct device_driver with a flags member and converts
existing suppress_bind_attrs bool field to a flag. This way new flags
can be easily added in the future without changing the structure itself.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mach
This patch simplifies the code by:
- refactoring function parameters from struct device pointer to direct pointer
to struct sysmmu drvdata
- moving list_head enteries from struct exynos_iommu_owner directly to struct
sysmmu_drvdata
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
This patch removes custom initialization of reserved memory regions from
s5p-mfc driver. Driver will use main device pointer for all memory allocations.
This patch is temporary, do not merge it yet.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/media/platform/s5p-mfc
fimd_wait_for_vblank function really to do its job.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 25 ++---
1 file changed, 18 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
b/drivers
This patch adds support for getting a notify for failed device driver
bind, so all the items done in BUS_NOTIFY_BIND_DRIVER event can be
cleaned if the driver fails to bind.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/base/dd.c | 10 +++---
include/linux
This patch adds a new flags for device drivers. This flag instructs
kernel that the device driver does it own management of IOMMU assisted
IO address space translations, so no default dma-mapping structures
should be initialized.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
This patch adds missing smmu_g2d clock implementation and updates
comment about Exynos4 clocks from 278-282 range. Those clocks are
available on all Exynos4 SoC series, so the misleading comment has been
removed.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/clk/samsung
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
if there are no other devices
enabled. This way, the SYSMMU drivers get a genpd pm event and save its
state with sysmmu_save_state() function.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 54 +++-
1 file changed, 53
Initialize all structures and register to iommu subsystem only on Exynos
compatible platforms.
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-iommu.c b/drivers/iommu/exynos
This patch removes useless spinlocks and other unused members from
struct exynos_iommu_owner. There is no point is protecting this
structure by spinlock because content of this structure doesn't change
and other structures have their own spinlocks.
Signed-off-by: Marek Szyprowski m.szyprow
This patch adds System MMU nodes that are specific to Exynos4210/4x12 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/boot/dts/exynos4.dtsi| 118 ++
arch/arm/boot/dts/exynos4210.dtsi | 23
arch/arm/boot/dts
This patch adds code to initialize and assign SYSMMU controllers to
their master devices defined in device tree.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 152 +--
1 file changed, 145 insertions(+), 7
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 | 59
1 file changed, 38 insertions(+), 21 deletions(-)
diff --git a/drivers/iommu
After refactoring functions to use pointer to struct sysmmu_drvdata
directly, some functions became useless and thus never used, so remove
them completely.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 43
This patch renames some variables to make the code easier to understand.
'domain' is replaced by 'iommu_domain' (more generic entity) and really
meaning less 'priv' by 'domain' to reflect its purpose.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 191
This patch adds code to create default per-device iommu-based
dma-mapping instance for all master devices, whose driver didn't set
DRIVER_HAS_OWN_IOMMU_MANAGER flag.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 49
Removed following unused includes: linux/mm.h, linux/errno.h,
linux/memblock.h and linux/export.h.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 18 +++---
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/iommu
-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 674d1fb..46e0edc 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers
This patch is an example how to use more than one IOMMU controller in a
device driver for hardware blocks, which have more then one dma master
(memory interface with iommu controller).
This patch is temporary, do not merge it yet.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Hello,
On 2014-08-19 01:32, Joerg Roedel wrote:
On Tue, Aug 05, 2014 at 12:47:28PM +0200, Marek Szyprowski wrote:
.../devicetree/bindings/iommu/samsung,sysmmu.txt | 93 ++-
Documentation/power/notifiers.txt | 14 +
arch/arm/boot/dts/exynos4.dtsi
Hello,
On 2014-08-19 13:39, Andreas Färber wrote:
Hi Marek and Inki,
Am 19.08.2014 08:07, schrieb Marek Szyprowski:
On 2014-08-19 01:32, Joerg Roedel wrote:
On Tue, Aug 05, 2014 at 12:47:28PM +0200, Marek Szyprowski wrote:
[...]
33 files changed, 1016 insertions(+), 356 deletions
Hello,
On 2014-08-25 22:05, Greg Kroah-Hartman wrote:
On Tue, Aug 05, 2014 at 12:47:32PM +0200, Marek Szyprowski wrote:
This patch adds support for getting a notify for failed device driver
bind, so all the items done in BUS_NOTIFY_BIND_DRIVER event can be
cleaned if the driver fails to bind
Hello,
On 2014-08-25 23:18, Joerg Roedel wrote:
On Tue, Aug 05, 2014 at 12:47:32PM +0200, Marek Szyprowski wrote:
+ if (failed dev-bus)
+ blocking_notifier_call_chain(dev-bus-p-bus_notifier,
+BUS_NOTIFY_DRVBIND_FAILED, dev
Hi Greg,
On 2014-08-05 12:47, Marek Szyprowski wrote:
This patch adds a new flags for device drivers. This flag instructs
kernel that the device driver does it own management of IOMMU assisted
IO address space translations, so no default dma-mapping structures
should be initialized.
Signed-off
Hello,
On 2014-09-01 11:38, Arnd Bergmann wrote:
On Monday 01 September 2014 09:53:29 Marek Szyprowski wrote:
On 2014-09-01 09:07, Thierry Reding wrote:
On Mon, Sep 01, 2014 at 07:22:32AM +0200, Marek Szyprowski wrote:
Hi Greg,
On 2014-08-05 12:47, Marek Szyprowski wrote:
This patch adds
Hello,
On 2014-09-01 13:56, Arnd Bergmann wrote:
On Monday 01 September 2014 12:47:08 Marek Szyprowski wrote:
Who do you think needs to set this flag, and who needs to read it?
In the proposed solution Exynos IOMMU driver creates a separate IO
address space
for every client device in a system
work, but I wonder if I should select this version as a base or wait
a bit for an update.
Best regards
--
Marek Szyprowski, PhD
Samsung RD Institute Poland
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Hi Will,
On 2014-09-02 10:31, Will Deacon wrote:
On Tue, Sep 02, 2014 at 07:26:01AM +0100, Marek Szyprowski wrote:
On 2014-08-29 17:54, Will Deacon wrote:
This patch series is an RFC to implement IOMMU master configuration into
of_dma_configure. I haven't yet ported any IOMMU drivers
Hi Arnd,
On 2014-09-02 10:56, Arnd Bergmann wrote:
On Tuesday 02 September 2014 10:48:02 Marek Szyprowski wrote:
-- I have concerns that allocating one domain per master might be
too much, but it's hard to tell without an IOMMU driver ported over.
One domain per master is IMHO a sane
Hi Will,
On 2014-09-02 12:57, Will Deacon wrote:
On Tue, Sep 02, 2014 at 11:42:13AM +0100, Marek Szyprowski wrote:
On 2014-09-02 10:56, Arnd Bergmann wrote:
On Tuesday 02 September 2014 10:48:02 Marek Szyprowski wrote:
-- I have concerns that allocating one domain per master might be
too
Hi Arnd,
On 2014-09-02 14:22, Arnd Bergmann wrote:
On Tuesday 02 September 2014 12:42:13 Marek Szyprowski wrote:
On 2014-09-02 10:56, Arnd Bergmann wrote:
On Tuesday 02 September 2014 10:48:02 Marek Szyprowski wrote:
-- I have concerns that allocating one domain per master might be
too
On 2014-09-02 14:46, Arnd Bergmann wrote:
On Tuesday 02 September 2014 14:30:36 Marek Szyprowski wrote:
However we also need to figure out how to let drivers to make their own
configuration, like it is required by Exynos DRM subsystem, which consist
of several devices, each having its own
device *dev, struct
of_phandle_args *args);
+#endif
+
unsigned long pgsize_bitmap;
};
Best regards
--
Marek Szyprowski, PhD
Samsung RD Institute Poland
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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
This patch adds missing smmu_g2d clock implementation and updates
comment about Exynos4 clocks from 278-282 range. Those clocks are
available on all Exynos4 SoC series, so the misleading comment has been
removed.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Tomasz Figa t.f
the basic support gets merged
3. removed support for power domain notifier-based runtime power
management - this also will be discussed separately later
I hope that the driver with above changes will be easier to be merged to
v3.18.
Best regards
Marek Szyprowski
Samsung RD Institute Poland
If device has no max_seg_size set, we assume that there is no limit and
force it to DMA_BIT_MASK(32) to always use contiguous mappings in DMA
address space.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mm/dma-mapping.c | 16
1 file changed, 16 insertions
This patches change initialization time of power domain driver from client
device driver bind to device creation. This lets other core drivers to
register power domain notifiers before client driver is bound.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/mach-exynos
This patch adds System MMU nodes that are specific to Exynos4210/4x12 series.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
arch/arm/boot/dts/exynos4.dtsi| 117 ++
arch/arm/boot/dts/exynos4210.dtsi | 23
arch/arm/boot/dts
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
After refactoring functions to use pointer to struct sysmmu_drvdata
directly, some functions became useless and thus never used, so remove
them completely.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 43
This patch removes useless spinlocks and other unused members from
struct exynos_iommu_owner. There is no point is protecting this
structure by spinlock because content of this structure doesn't change
and other structures have their own spinlocks.
Signed-off-by: Marek Szyprowski m.szyprow
-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 1b3f00726cd4..cf36cdecf335 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b
The driver doesn't need to do anything important in device add/remove
callbacks, because initialization will be done from device-tree specific
callbacks added later. IOMMU groups created by current code were never
used.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu
This patch introduces IOMMU_OF_DECLARE-based initialization to the
driver, which replaces subsys_initcall-based procedure.
exynos_iommu_of_setup ensures that each sysmmu controller is probed
before its master device.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu
Removed following unused includes: linux/mm.h, linux/errno.h,
linux/memblock.h and linux/export.h.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
drivers/iommu/exynos-iommu.c | 14 +-
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/drivers/iommu/exynos
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