Mon, Feb 10, 2014 at 10:21 PM, Kukjin Kim wrote:
>>>
>>> > Just adding KyongHo Cho.
>>> >
>>> > If he can fixup for this time, it would be best solution because he knows
>>> > well than others, I think.
>>>
>>> It's
On Fri, Feb 1, 2013 at 10:51 PM, Joerg Roedel wrote:
> Cho,
>
> On Wed, Jan 02, 2013 at 02:53:49PM +0900, KyongHo Cho wrote:
>> On Tuesday, January 1, 2013, Sylwester Nawrocki
>>
>
>> > Cc: devicetree-disc...@lists.ozlabs.org
>
> Since patch 7 of this s
On Wed, Jan 16, 2013 at 7:53 PM, Will Deacon wrote:
> On Wed, Dec 26, 2012 at 01:53:15AM +, Cho KyongHo wrote:
>> notice: v6 patch-set is rebased on next/iommu-exynos branch of
>> linux-samsung.git. This patch-set does not include 2 patches (05 and 06
>> patches in v5 patch-se) because they a
On Wed, Jan 9, 2013 at 7:23 AM, Sylwester Nawrocki
wrote:
> On 01/07/2013 11:45 AM, KyongHo Cho wrote:
>>>
>>> > The current exynos-iommu(System MMU) driver does not work autonomously
>>> > since it is lack of support for power management of peripheral blocks.
On Mon, Aug 27, 2012 at 4:11 PM, Seung-Woo Kim wrote:
> This is trivial patch to mate parameter name between iommu api enabled case
> and
> disabled case.
>
> Signed-off-by: Seung-Woo Kim
> Signed-off-by: Kyungmin Park
> ---
> Sorry about typo in previous patch.
>
> arch/arm/mach-exynos/includ
On Mon, Apr 16, 2012 at 7:01 PM, Kyungmin Park
wrote:
> On 4/16/12, KyongHo Cho wrote:
>> On Sun, Apr 15, 2012 at 12:51 AM, Kukjin Kim wrote:
>>> On 04/12/12 01:19, KyongHo Cho wrote:
>>>>
>>>> On Wed, Apr 11, 2012 at 11:34 PM, Marek Szyprowski
>&
On Wed, Apr 11, 2012 at 11:34 PM, Marek Szyprowski
wrote:
> 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 doma
On Sun, Apr 15, 2012 at 12:51 AM, Kukjin Kim wrote:
> On 04/12/12 01:19, KyongHo Cho wrote:
>>
>> On Wed, Apr 11, 2012 at 11:34 PM, Marek Szyprowski
>> wrote:
>>>
>>> Hi!
>>>
>>> These two patches fixes operation of the SYSMMU driver (v1
On Wed, Apr 11, 2012 at 11:34 PM, Marek Szyprowski
wrote:
> 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.
>
Thanks, Marek.
Your wa
On Thu, Mar 29, 2012 at 10:23 AM, Kukjin Kim wrote:
> Joerg Roedel wrote:
>>
>> On Fri, Mar 16, 2012 at 01:47:50PM -0700, Kukjin Kim wrote:
>>>
>>> Anyway Joerg, how do you want to handle this? Do you want to pick up
>>> 1/2/3 all of them in your tree? If so, 2nd patch should be on top of
>>> some
ivers/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
On Tue, Mar 20, 2012 at 10:50 PM, Subash Patel wrote:
> Sorry for digging this very late. But as part of integrating dma_map v7 &
> sysmmu v12 on 3.3-rc5, I am facing below issue:
>
> a) By un-selecting IOMMU in menu config, I am able to allocate memory in
> vb2-dma-contig
>
> b) When I enable SYS
On Tue, Mar 13, 2012 at 7:00 PM, Joerg Roedel wrote:
> On Tue, Mar 13, 2012 at 05:50:16PM +0900, KyongHo Cho wrote:
>> >> +struct sysmmu_drvdata {
>> >> + struct device *sysmmu;
>> >> + char *dbgname;
>> >> + int nsfrs;
>> >
On Tue, Mar 13, 2012 at 12:01 AM, Joerg Roedel wrote:
> On Fri, Mar 09, 2012 at 09:15:24PM +0900, Cho KyongHo wrote:
>> +/* We does not consider super section mapping (16MB) */
>> +struct iommu_client {
>> + struct list_head node;
>> + struct device *dev;
>> +};
>> +
>> +struct exynos_iomm
On Wed, Mar 7, 2012 at 2:28 PM, InKi Dae wrote:
>> +static irqreturn_t exynos_sysmmu_irq(int irq, void *dev_id)
>> +{
>> + /* SYSMMU is in blocked when interrupt occurred. */
>> + struct sysmmu_drvdata *data = dev_id;
>> + struct resource *irqres;
>> + struct platform_devic
On Tue, Mar 6, 2012 at 10:13 PM, Kyungmin Park wrote:
> On Tue, Mar 6, 2012 at 5:31 PM, KyongHo Cho wrote:
>> HAALgBjAGgAbwBAAHMAYQBtAHMAdQBuAGcALgBjAG8AbQA=;Tue,
>> 06 Mar 2012 0
On Tue, Mar 6, 2012 at 7:03 PM, Kyungmin Park wrote:
>>
>> -#define S5P_SYSMMU_TOTAL_IPNUM EXYNOS4_SYSMMU_TOTAL_IPNUM
>> +#define SYSMMU_DEVNAME_BASE "exynos-sysmmu"
>> +
>> +#define SYSMMU_CLOCK_NAME "sysmmu"
>> +#define SYSMMU_CLOCK_NAME2 "sysmmu_mc"
> What's the meaning of "mc"?
I
moving the driver file from arch/arm/ to drivers/iommu.
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig |8 -
arch/arm/plat-s5p/Makefile |1 -
arch/arm/plat-s5p/sysmmu.c | 313 ---
arch/arm/plat-samsung
-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
Cc: Joerg Roedel
Cc: Kukjin Kim
Signed-off-by: KyongHo Cho
becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos/Kconfig| 11 +-
arch/arm/mach-exynos/Makefile |2 +-
arch/arm/mach-exynos/clock-exynos4.c| 79 ++--
arch/arm/mach-exynos/clock-exynos4
These patches are successfully compiled
in linux-samsung.git/for-next branch
You can find the git repo. In
http://git.kernel.org/?p=linux/kernel/git/kgene/linux-samsung.git;a=summary
Changes since v9:
- Split the first patch into 2 patches.
One removes System MMU driver from arch/arm/plat- tre
On Thu, Mar 1, 2012 at 12:04 AM, Marek Szyprowski
wrote:
> +/**
> + * arm_iommu_map_sg - map a set of SG buffers for streaming mode DMA
> + * @dev: valid struct device pointer
> + * @sg: list of buffers
> + * @nents: number of buffers to map
> + * @dir: DMA transfer direction
> + *
> + * Map a set
On Tue, Feb 28, 2012 at 4:01 PM, Kyungmin Park
wrote:
> Hi,
>
> Some comments.
> 1. It's not same patch series. since it has additional feature,
> exynos5 series support which don't covered at previous time.
> 2. It assumes that name conversion is based on exynos5 as default. now
> you use gsc at
On Tue, Feb 28, 2012 at 4:53 PM, Kyungmin Park
wrote:
>> +void exynos_sysmmu_set_prefbuf(struct device *owner,
>> + unsigned long base0, unsigned long size0,
>> + unsigned long base1, unsigned long size1)
>> +{
>> + struct sysmmu_drvdata
On Tue, Feb 28, 2012 at 4:20 PM, Kyungmin Park
wrote:
> Hi,
>
> On 2/28/12, KyongHo Cho wrote:
>> Handling System MMUs with an identifier is not flexible to manage
>> System MMU platform devices because of the following reasons:
>> 1. A device driver which needs to
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
Cc: Joerg Roedel
Cc: Kukjin Kim
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig
becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos/Kconfig| 11 +-
arch/arm/mach-exynos/Makefile |2 +-
arch/arm/mach-exynos/clock-exynos4.c| 79 ++--
arch/arm/mach-exynos/clock-exynos4
Changes since v8:
- exynos_iommu_map/unmap() just works for the page sizes
that System MMU supports. (Joerg's comment)
- 1 platform device for 1 H/W though a multimedia accelerator
with several System MMUs attached.
This make controlling System MMU simpler.
- Information between System MMU
On Tue, Feb 28, 2012 at 12:51 AM, Marek Szyprowski
wrote:
>> The next patch will be submitted by 2/28.
>
> Ok, I will check it soon then.
Thank you a lot.
>> The next IOMMU driver defines just one platform device for a H/W device.
>> Thus, it defines just one SYSMMU_MFC platform device, for exa
Hi Marek.
On Fri, Feb 24, 2012 at 10:45 PM, Marek Szyprowski
wrote:
> Hi,
>
> On Thursday, December 29, 2011 1:24 PM KyongHo Cho wrote:
>
>> Changes since v7:
>> - Rebased with the recent commits of the following git branches
>> * git.kernel.org/pub/scm/linux/
On Fri, Jan 27, 2012 at 11:13 AM, Kukjin Kim wrote:
> KyongHo Cho wrote:
>>
>> Hi,
>> On Mon, Jan 23, 2012 at 11:27 PM, Joerg Roedel wrote:
>> > Hi,
>> >
>> > please also get and inclue Acks from the Exynos maintainer for the next
>> > po
e issues I pointed
> out below.
>
Thanks for review!
I will include the Acks in the next patchset.
I will post the next patchset with corrections by the day after tomorrow.
And sorry for late reply.
I had holidays for the new year's day based on Lunar system.
> On Thu, Dec 29, 2011
On Thu, Jan 5, 2012 at 8:47 PM, Joerg Roedel wrote:
> On Wed, Jan 04, 2012 at 09:26:20PM +, Russell King - ARM Linux wrote:
>> On Wed, Jan 04, 2012 at 04:01:01PM +0100, Joerg Roedel wrote:
>> > On Tue, Jan 03, 2012 at 09:55:27AM +, Russell King - ARM Linux wrote:
>> > > It comes through wh
On Tue, Jan 3, 2012 at 10:02 AM, Kukjin Kim wrote:
> Joerg Roedel wrote:
>>
>> On Tue, Jan 03, 2012 at 12:21:30AM +0900, KyongHo Cho wrote:
>> > > I still get
>> > >
>> > > LD .tmp_vmlinux1
>> > > /data/cross/gcc-4.6.0-nolibc
Hi
On Mon, Jan 2, 2012 at 10:42 PM, Joerg Roedel wrote:
> Hi,
>
> On Thu, Dec 29, 2011 at 09:24:18PM +0900, KyongHo Cho wrote:
>> Changes since v7:
>> - Rebased with the recent commits of the following git branches
>> * git.kernel.org/pub/scm/linux/ker
debugging
message and generates kernel oops.
This IOMMU driver calls bus_set_iommu() instead of register_iommu()
since Joerg suggested that installing iommu_ops in bus_type.
Cc: Joerg Roedel
Cc: Marek Szyprowski
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig |8
becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos/Kconfig |5 +
arch/arm/mach-exynos/clock-exynos4210.c | 16 ++
arch/arm/mach-exynos/clock-exynos4212.c |1 +
arch/arm/mach-exynos/clock.c
Changes since v7:
- Rebased with the recent commits of the following git branches
* git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/next
* git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git/for-next
- Changed magic numbers into macros
- Setting owner of a System MMU in 'iomm
On Thu, Dec 15, 2011 at 05:11:26PM +0100, Joerg Roedel wrote:
> On Tue, Dec 13, 2011 at 04:14:20PM +0900, KyongHo Cho wrote:
> > Since it is not guaranteed that an iommu driver initializes in its
> > domain_init() function, it must be initialized with NULL to prevent
> > cal
Since it is not guaranteed that an iommu driver initializes in its
domain_init() function, it must be initialized with NULL to prevent
calling a function in an arbitrary location when iommu fault occurred.
Signed-off-by: KyongHo Cho
---
drivers/iommu/iommu.c |1 +
1 files changed, 1
2011/12/6 Marek Szyprowski :
> Hello,
>
> On Tuesday, December 06, 2011 1:21 PM KyongHo Cho wrote:
>
>> On Tue, Dec 6, 2011 at 8:48 PM, Marek Szyprowski
>> wrote:
>> > Hello,
>> >
>> > I'm trying to integrate your SYSMMU driver with m
On Tue, Dec 6, 2011 at 8:48 PM, Marek Szyprowski
wrote:
> Hello,
>
> I'm trying to integrate your SYSMMU driver with my DMA-mapping & IOMMU
> API integration patches. I've noticed some issues, please see my comments
> below.
>
Thank you!
> On Friday, November
On Tue, Dec 6, 2011 at 8:24 AM, Kyungmin Park wrote:
> On 12/6/11, Joerg Roedel wrote:
>> On Fri, Nov 18, 2011 at 06:47:28PM +0900, KyongHo Cho wrote:
>>> Patch Summary:
>>> [PATCH v7 1/2] ARM: EXYNOS: Change System MMU platform device definitions
>>> [P
becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos/Kconfig |2 +
arch/arm/mach-exynos/clock-exynos4210.c | 16 ++
arch/arm/mach-exynos/clock.c | 55 ++--
arch/arm/mach-exynos/dev
debugging
message and generates kernel oops.
This IOMMU driver calls bus_set_iommu() instead of register_iommu()
since Joerg suggested that installing iommu_ops in bus_type.
Cc: Joerg Roedel
Cc: Ohad Ben-Cohen
Cc: Sylwester Nawrocki
Cc: Russell King
Signed-off-by: KyongHo Cho
---
arch/arm/plat
Changes since v6:
- Totally rewrite exynos_iommu_map() and exynos_iommu_unmap() according
to the change in iommu_map() and iommu_unmap().
- Change special slab for Lv2 page table to kmalloc().
Changes since v5:
- Relation between device and a domain become n:1 (Joerg's comment)
- Implements iomm
On Tue, Nov 15, 2011 at 3:12 PM, KyongHo Cho wrote:
> On Tue, Nov 15, 2011 at 2:37 PM, Kyungmin Park wrote:
>>> @@ -988,6 +989,21 @@ static struct platform_device *universal_devices[]
>>> __initdata = {
>>> &cam_i_core_fixed_reg_dev,
On Tue, Nov 15, 2011 at 3:05 PM, Kyungmin Park wrote:
>> +static bool set_sysmmu_active(struct sysmmu_drvdata *data)
>> +{
>> + /* return true if the System MMU was not active previously
>> + and it needs to be initialized */
>> + data->activations++;
>> + return data->activatio
On Tue, Nov 15, 2011 at 2:37 PM, Kyungmin Park wrote:
>> @@ -988,6 +989,21 @@ static struct platform_device *universal_devices[]
>> __initdata = {
>> &cam_i_core_fixed_reg_dev,
>> &cam_s_if_fixed_reg_dev,
>> &s5p_device_fimc_md,
>> + &SYSMMU_PLATDEV(sss),
>> + &SYSMMU_PLA
becomes a child if its power domain device.
- clkdev
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos/Kconfig |2 +
arch/arm/mach-exynos/clock-exynos4210.c | 16 ++
arch/arm/mach-exynos/clock.c | 55 ++--
arch/arm/mach-exynos/dev
debugging
message and generates kernel oops.
This IOMMU driver calls bus_set_iommu() instead of register_iommu()
since Joerg suggested that installing iommu_ops in bus_type.
Cc: Joerg Roedel
Cc: Ohad Ben-Cohen
Cc: Sylwester Nawrocki
Cc: Russell King
Signed-off-by: KyongHo Cho
---
arch/arm/plat
Hi.
Patch Summary:
[PATCH v6 1/2] ARM: EXYNOS: Change System MMU platform device definitions
[PATCH v6 2/2] iommu/exynos: Add iommu driver for Exynos Platforms
The first patche enhances System MMU platform device definition:
- Removed System MMU for MDMA0 in TOP block because it is not
used.
On Fri, Oct 14, 2011 at 11:17 PM, Roedel, Joerg wrote:
> On Thu, Oct 13, 2011 at 04:13:23AM -0400, KyongHo Cho wrote:
>> +struct exynos_iommu_domain {
>> + struct device *dev;
>> + unsigned long *pgtable;
>> + spinlock_t lock;
>> + spinl
ed1a96aa9a5ad3a
Author: KyongHo Cho
Date: Thu Oct 13 17:06:55 2011 +0900
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 accellerators.
The System MMU driver is already in arc/arm/pla
debugging
message and generates kernel oops.
This IOMMU driver calls bus_set_iommu() instead of register_iommu()
since Joerg suggested that installing iommu_ops in bus_type.
Cc: Joerg Roedel
Cc: Ohad Ben-Cohen
Cc: Sylwester Nawrocki
Cc: Russell King
Signed-off-by: KyongHo Cho
---
arch/arm/plat
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
Hi.
This is the fifth try of submitting patches about IOMMU/System MMU
Patch Summary:
[PATCH v5 1/2] ARM: EXYNOS4: Change System MMU device definition
[PATCH v5 2/2] iommu/exynos: Add iommu driver for Exynos Platforms
The first patche enhances System MMU platform device definition:
- Removed Sy
Hi Ohad,
On Wed, Oct 12, 2011 at 5:22 PM, Ohad Ben-Cohen wrote:
>> +static int exynos_iommu_unmap(struct iommu_domain *domain, unsigned long
>> iova,
>> + int gfp_order)
>> +{
> ...
>> + return 0;
>> +}
>
> ->unmap() should return the size of the unmapped region (in
debugging
message and generates kernel oops.
This IOMMU driver calls bus_set_iommu() instead of register_iommu()
since Joerg suggested that installing iommu_ops in bus_type.
Cc: Joerg Roedel
Cc: Ohad Ben-Cohen
Cc: Sylwester Nawrocki
Cc: Russell King
Signed-off-by: KyongHo Cho
---
arch/arm/plat
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
Hi.
This is the firth try of submitting patches about IOMMU/System MMU
Patch Summary:
[PATCH v4 1/2] ARM: EXYNOS4: Change System MMU device definition
[PATCH v4 2/2] iommu/exynos: Add iommu driver for Exynos Platforms
The first patche enhances System MMU platform device definition:
- Removed Sy
On Sat, Oct 8, 2011 at 5:46 AM, Sylwester Nawrocki
wrote:
>> -
>> -config S5P_SLEEP
>> - bool
>> - help
>> - Internal config node to apply common S5P sleep management code.
>> - Can be selected by S5P and newer SoCs with similar sleep procedure.
>> -
>
> Is S5P_SLEEP being remo
On Fri, Sep 30, 2011 at 10:46 PM, Roedel, Joerg wrote:
> On Fri, Sep 30, 2011 at 03:31:49AM -0400, Kukjin Kim wrote:
>> From: KyongHo Cho
>>
>> This replaces register_iommu() with bus_set_iommu() according to the
>> suggestion of Joerg Roedel.
>
> This should be
On Fri, Sep 30, 2011 at 10:42 PM, Roedel, Joerg wrote:
> On Fri, Sep 30, 2011 at 03:30:57AM -0400, Kukjin Kim wrote:
>> From: KyongHo Cho
>>
>> Due to Ohad Ben-Cohen gathered IOMMU drivers in drivers/iommu directory,
>> System MMU driver is moved to drivers/iommu di
On Fri, Sep 30, 2011 at 9:06 PM, Roedel, Joerg wrote:
> First comment: Pleas remove the 'inline' annotations in this patch. It
> is better to let the compiler decide what to inline and what not.
Ok. Thanks :)
>
> Hmm, may it make sense to store data directly in dev->arch.iommu? This
> will save y
This is the System MMU driver and IOMMU API implementation for
Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
MMUs dedicated for each multimedia accellerators.
Signed-off-by: KyongHo Cho
---
drivers/iommu/Kconfig| 14 +
drivers/iommu/Makefile |1 +
drivers
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
This replaces register_iommu() with bus_set_iommu() according to the
suggestion of Joerg Roedel.
Cc: Joerg Roedel
Signed-off-by: KyongHo Cho
---
drivers/iommu/exynos_iommu.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/exynos_iommu.c b/drivers/iommu
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
This is the System MMU driver and IOMMU API implementation for
Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
MMUs dedicated for each multimedia accellerators.
Signed-off-by: KyongHo Cho
---
drivers/iommu/Kconfig| 14 +
drivers/iommu/Makefile |1 +
drivers
Hi,
The first 2 patches are the revolutionary change to the device definition
of System MMU for Exynos4 SoCs:
- System MMU ID is removed and a device and its dedicated System MMU are
bound during the machine initialization.
- Only the System MMU platform devices that are bound to their master
This replaces register_iommu() with bus_set_iommu() according to the
suggestion of Joerg Roedel.
Cc: Joerg Roedel
Signed-off-by: KyongHo Cho
---
drivers/iommu/exynos_iommu.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/exynos_iommu.c b/drivers/iommu
Due to Ohad Ben-Cohen gathered IOMMU drivers in drivers/iommu directory,
System MMU driver is moved to drivers/iommu directory and removed
from arch/arm/plat-s5p directory.
Please see
https://lkml.org/lkml/2011/6/8/69
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig
Due to Ohad Ben-Cohen gathered IOMMU drivers in drivers/iommu directory,
System MMU driver is moved to drivers/iommu directory and removed
from arch/arm/plat-s5p directory.
Please see
https://lkml.org/lkml/2011/6/8/69
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig
This is the System MMU driver and IOMMU API implementation for
Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
MMUs dedicated for each multimedia accellerators.
Signed-off-by: KyongHo Cho
---
drivers/iommu/Kconfig| 14 +
drivers/iommu/Makefile |1 +
drivers
This is the second try of submitting patches about IOMMU/System MMU
driver for Exynos4 SoCs with the fixes of the following probles
pointed by Russell King.:
- Missing unlocking a spinlock in exynos_iommu_attach_dev().
- atomic_t -> int in sysmmu_drvdata.activations
- sysmmu_platdata -> sysmmu_d
First 2 patches enhance System MMU platform device definition:
- Removed System MMU for MDMA0 in LCD block because it is not used.
Use MDMA2 in TOP block.
- Removed System MMU ID. Instead a System MMU is bound to a device that
the System MMU is dedicated during machin initialization. If a d
This replaces register_iommu() with bus_set_iommu() according to the
suggestion of Joerg Roedel.
Cc: Joerg Roedel
Signed-off-by: KyongHo Cho
---
drivers/iommu/exynos_iommu.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/exynos_iommu.c b/drivers/iommu
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
This is the System MMU driver and IOMMU API implementation for
Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
MMUs dedicated for each multimedia accellerators.
Signed-off-by: KyongHo Cho
---
drivers/iommu/Kconfig| 14 +
drivers/iommu/Makefile |1 +
drivers
Due to Ohad Ben-Cohen gathered IOMMU drivers in drivers/iommu directory,
System MMU driver is moved to drivers/iommu directory and removed
from arch/arm/plat-s5p directory.
Please see
https://lkml.org/lkml/2011/6/8/69
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
Due to Ohad Ben-Cohen gathered IOMMU drivers in drivers/iommu directory,
System MMU driver is moved to drivers/iommu directory and removed
from arch/arm/plat-s5p directory.
Please see
https://lkml.org/lkml/2011/6/8/69
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig
Hi.
This patch set enhances System MMU platform device definitions of Exynos
SoC platforms, adds the implementation of IOMMU API as well as and moves
Syste MMU driver to the drivers/iommu directory.
The IOMMU driver also implements fault handler that Ohad Ben-Cohen has
suggeested and iommu_ops pe
On Tue, Sep 27, 2011 at 5:48 PM, Ohad Ben-Cohen wrote:
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index d084e87..2987199 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -98,11 +98,12 @@ extern void iommu_set_fault_handler(struct
> iommu_domain *domain,
>
On Tue, Sep 27, 2011 at 12:59 AM, Ohad Ben-Cohen wrote:
> On Mon, Sep 26, 2011 at 5:48 PM, KyongHo Cho wrote:
>> I am sorry but I still think that
>> installing default fault handler is quite simple and straightforward.
>
> ... and abusing the IOMMU API.
>
> Please do
On Mon, Sep 26, 2011 at 6:36 PM, Ohad Ben-Cohen wrote:
> It seems your default behavior just prints an error message with the
> details of the fault (addresses, flags, etc..). We can probably have
> this unified.
>
> In case you want to print exonys-specific info when the fault is not
> handled b
2011 at 7:00 PM, KyongHo Cho wrote:
> This is the second try of submitting patches about IOMMU/System MMU
> driver for Exynos4 SoCs with the fixes of the following problems
> pointed by Russell King.:
> - Missing unlocking a spinlock in exynos_iommu_attach_dev().
&
that is included in LCD0 block because it is not used
anymore. Use MDMA in TOP block.
3. Changed System MMU definitions of platform device. It is not an array
anymore.
Signed-off-by: KyongHo Cho
---
arch/arm/mach-exynos4/Kconfig |2 -
arch/arm/mach-exynos4/clock.c
This is the second try of submitting patches about IOMMU/System MMU
driver for Exynos4 SoCs with the fixes of the following problems
pointed by Russell King.:
- Missing unlocking a spinlock in exynos_iommu_attach_dev().
- atomic_t -> int in sysmmu_drvdata.activations
- sysmmu_platdata -> sysmmu_
On Mon, Sep 26, 2011 at 6:05 PM, Ohad Ben-Cohen wrote:
> On Mon, Sep 26, 2011 at 11:58 AM, KyongHo Cho wrote:
>> As you've noticed, it is default behavior for iommu fault.
>
> Then why not add it to the IOMMU core ? it's quite generic and can be
> useful for others,
Hi.
On Mon, Sep 26, 2011 at 4:59 PM, Ohad Ben-Cohen wrote:
> 2011/9/24 조경호 :
>> This is the System MMU driver and IOMMU API implementation for
>> Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
>> MMUs dedicated for each multimedia accellerators.
>>
&g
Thanks. I will try.
Regards,
Cho KyongHo.
On Mon, Sep 26, 2011 at 11:17 AM, Wanlong Gao wrote:
> On 09/26/2011 08:44 AM, KyongHo Cho wrote:
>
>> Hi.
>>
>> On Sat, Sep 24, 2011 at 6:38 PM, Russell King - ARM Linux
>> wrote:
>>> On Sat, Sep 24, 2011 at 07:3
Hi.
On Sat, Sep 24, 2011 at 6:38 PM, Russell King - ARM Linux
wrote:
> On Sat, Sep 24, 2011 at 07:35:45AM +, 조경호 wrote:
>> +# EXYNOS IOMMU support
>> +config EXYNOS_IOMMU
>> + bool "Exynos IOMMU Support"
>> + depends on ARCH_EXYNOS4
>> + select IOMMU_API
>> + select EXYNOS4_DEV_SYSMMU
>> + he
han 10 System
> MMUs dedicated for each multimedia accellerators.
>
> Signed-off-by: KyongHo Cho
> ---
> drivers/iommu/Kconfig| 14 +
> drivers/iommu/Makefile |1 +
> drivers/iommu/exynos_iommu.c | 859 ++
> 3 files
Sorry for duplicate emails :(
My mistake.
2011/9/24 조경호 :
> Hi.
>
> First 2 patches enhance System MMU platform device definition:
> - Removed System MMU for MDMA0 in LCD block because it is not used.
> Use MDMA2 in TOP block.
> - Removed System MMU ID. Instead a System MMU is bound to a devi
Hi.
On Fri, Sep 2, 2011 at 10:56 PM, Marek Szyprowski
wrote:
> + *
> + * iova must be aligned on a 4kB, 64kB, 1MB and 16MB boundaries,
> respectively.
> + */
Actually, iova is just needed to be aligned by 4KiB because it is
minimum requirement.
I think IOMMU driver is capable of mapping a group
cause any problem.
Signed-off-by: KyongHo Cho
---
arch/arm/plat-s5p/Kconfig |8 -
arch/arm/plat-s5p/Makefile |1 -
arch/arm/plat-s5p/include/plat/sysmmu.h | 95 --
arch/arm/plat-s5p/sysmmu.c | 312 ---
4 files
On Tue, Jul 5, 2011 at 8:14 PM, Marek Szyprowski
wrote:
> Hello,
>
> On Tuesday, July 05, 2011 1:38 AM KyongHo Cho wrote:
>
>> On Mon, Jul 4, 2011 at 3:47 PM, Marek Szyprowski
>> wrote:
>> > Hello,
>> >
>> > I really don't get why do You p
Hi.
On Mon, Jul 4, 2011 at 3:47 PM, Marek Szyprowski
wrote:
> Hello,
>
> I really don't get why do You persist in creating one monster platform
> device with resources for ALL SYSMMU/IOMMU controllers that are available
> on Exynos4 CPU. We (SPRC, see Andrzej's SYSMMU patches) already proposed
> a
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