re is no way to signal V4L2
> events, as they are signaled via POLLPRI.
>
>
> Thank you,
>
> Paul
>
> [1] https://libcamera.org/docs.html#id1
>
> On Thu, Oct 15, 2015 at 10:42:08AM +0900, Damian Hobson-Garcia wrote:
>> From: Martin Sustrik
>>
>> When
Hello,
> diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
> index ff0b981..87de343 100644
> --- a/include/linux/eventfd.h
> +++ b/include/linux/eventfd.h
>
> -/*
> - * CAREFUL: Check include/uapi/asm-generic/fcntl.h when defining
> - * new flags, since they might collide with O_*
Hello,
> diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
> index ff0b981..87de343 100644
> --- a/include/linux/eventfd.h
> +++ b/include/linux/eventfd.h
>
> -/*
> - * CAREFUL: Check include/uapi/asm-generic/fcntl.h when defining
> - * new flags, since they might collide with O_*
, and resubmitted for Linux 4.3]
Signed-off-by: Damian Hobson-Garcia
---
fs/eventfd.c | 102 ++-
include/linux/eventfd.h | 16 +--
include/uapi/linux/eventfd.h | 33 ++
3 files changed, 126 insertions(+), 25 deletions
Using eventfd user space can generate POLLIN/POLLOUT events but some
applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1]. The original
discussion trailed
Using eventfd user space can generate POLLIN/POLLOUT events but some
applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1]. The original
discussion trailed
50bpm.com>
[dhobs...@igel.co.jp: Rebased, and resubmitted for Linux 4.3]
Signed-off-by: Damian Hobson-Garcia <dhobs...@igel.co.jp>
---
fs/eventfd.c | 102 ++-
include/linux/eventfd.h | 16 +--
include/uapi/lin
Hi Martin,
On 2015-09-16 3:51 PM, Martin Sustrik wrote:
> On 2015-09-16 08:27, Damian Hobson-Garcia wrote:
>>
>> Additionally, to provide a way to associate user-space state with eventfd
>> object, it allows to attach user-space data to the file descriptor.
>
> The ab
) and similar:
When polling on the eventfd marked by EFD_MASK flag, all the events
specified in last written 'events' field shall be signaled.
Signed-off-by: Martin Sustrik
[dhobs...@igel.co.jp: Rebased, and resubmitted for Linux 4.3]
Signed-off-by: Damian Hobson-Garcia
---
fs/eventfd.c
Using eventfd user space can generate POLLIN/POLLOUT events but some
applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1]. The original
discussion trailed
f-by: Damian Hobson-Garcia <dhobs...@igel.co.jp>
---
fs/eventfd.c | 102 ++-
include/linux/eventfd.h | 16 +--
include/uapi/linux/eventfd.h | 39 +
3 files changed, 132 insertions(+), 25 deletions(-)
create m
Using eventfd user space can generate POLLIN/POLLOUT events but some
applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1]. The original
discussion trailed
Hi Martin,
On 2015-09-16 3:51 PM, Martin Sustrik wrote:
> On 2015-09-16 08:27, Damian Hobson-Garcia wrote:
>>
>> Additionally, to provide a way to associate user-space state with eventfd
>> object, it allows to attach user-space data to the file descriptor.
>
> The ab
On 2015-08-11 6:16 AM, Martin Sustrik wrote:
> On 2015-08-10 10:57, Damian Hobson-Garcia wrote:
>> Hi Martin,
>>
>> Thanks for your comments.
>>
>> On 2015-08-10 3:39 PM, Martin Sustrik wrote:
>>> On 2015-08-10 08:23, Damian Hobson-Garcia wrot
On 2015-08-11 6:16 AM, Martin Sustrik wrote:
On 2015-08-10 10:57, Damian Hobson-Garcia wrote:
Hi Martin,
Thanks for your comments.
On 2015-08-10 3:39 PM, Martin Sustrik wrote:
On 2015-08-10 08:23, Damian Hobson-Garcia wrote:
Replying to my own post, but I had the following comments
Hi Martin,
Thanks for your comments.
On 2015-08-10 3:39 PM, Martin Sustrik wrote:
> On 2015-08-10 08:23, Damian Hobson-Garcia wrote:
>> Replying to my own post, but I had the following comments/questions.
>> Martin, if you have any response to my comments I would be very happy
Replying to my own post, but I had the following comments/questions.
Martin, if you have any response to my comments I would be very happy to
hear them.
On 2015-08-10 2:51 PM, Damian Hobson-Garcia wrote:
> From: Martin Sustrik
>
[snip]
>
> write(2):
>
> User is allowed to
Hi Martin,
Thanks for your comments.
On 2015-08-10 3:39 PM, Martin Sustrik wrote:
On 2015-08-10 08:23, Damian Hobson-Garcia wrote:
Replying to my own post, but I had the following comments/questions.
Martin, if you have any response to my comments I would be very happy to
hear them
Replying to my own post, but I had the following comments/questions.
Martin, if you have any response to my comments I would be very happy to
hear them.
On 2015-08-10 2:51 PM, Damian Hobson-Garcia wrote:
From: Martin Sustrik sust...@250bpm.com
[snip]
write(2):
User is allowed to write
From: Martin Sustrik
When implementing network protocols in user space, one has to implement
fake file descriptors to represent the sockets for the protocol.
Polling on such fake file descriptors is a problem (poll/select/epoll accept
only true file descriptors) and forces protocol implementers
Hello all,
eventfd is very useful for generating POLLIN/POLLOUT poll events from user
space but some applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1].
From: Martin Sustrik sust...@250bpm.com
When implementing network protocols in user space, one has to implement
fake file descriptors to represent the sockets for the protocol.
Polling on such fake file descriptors is a problem (poll/select/epoll accept
only true file descriptors) and forces
Hello all,
eventfd is very useful for generating POLLIN/POLLOUT poll events from user
space but some applications may want to generate POLLPRI/POLLERR events as well.
This patch submission aims to generalize the events generated by an
eventfd. This is a resubmission of a patch from Feb 2013[1].
Hi Martin,
On 2015-07-09 5:41 PM, Martin Sustrik wrote:
> Hi Damian,
>
> Yes, this patch would be geneally useful for implementing stuff in user
> space that otherwise would have to live in kernelspace.
>
> Unfortunately, I have no cycles left to pursue getting it to the
> mainline. If you feel
Hello Martin and all,
I recently came across this (quite old by now) patch submission for an
extension to the functionality of eventfd and I noticed that the
discussion seems to have fizzled out. Is this functionality still of
use for user space network protocols? It seems like it would be
Hello Martin and all,
I recently came across this (quite old by now) patch submission for an
extension to the functionality of eventfd and I noticed that the
discussion seems to have fizzled out. Is this functionality still of
use for user space network protocols? It seems like it would be
Hi Martin,
On 2015-07-09 5:41 PM, Martin Sustrik wrote:
Hi Damian,
Yes, this patch would be geneally useful for implementing stuff in user
space that otherwise would have to live in kernelspace.
Unfortunately, I have no cycles left to pursue getting it to the
mainline. If you feel like
Hello,
>On Wed, Nov 12, 2014 at 6:38 AM, Daniel Thompson
>wrote:
>> Currently DRM_IOCTL_PRIME_HANDLE_TO_FD rejects all flags except
>> (DRM|O)_CLOEXEC making it hard for the userspace to generate a file
>> descriptor that can be used by mmap().
>>
>> It is easy to relax the restriction and allow
Hello,
On Wed, Nov 12, 2014 at 6:38 AM, Daniel Thompson daniel.thomp...@linaro.org
wrote:
Currently DRM_IOCTL_PRIME_HANDLE_TO_FD rejects all flags except
(DRM|O)_CLOEXEC making it hard for the userspace to generate a file
descriptor that can be used by mmap().
It is easy to relax the
being dropped during page migration.
I've tried the patch and it seems to solve my problems, so I'm wondering
if it is worth resubmitting. The discussion on the original thread seems
to have faded out. Does anyone know if it was continued somewhere else?
Thank you,
Damian
--
Damian Hobson-Garcia
being dropped during page migration.
I've tried the patch and it seems to solve my problems, so I'm wondering
if it is worth resubmitting. The discussion on the original thread seems
to have faded out. Does anyone know if it was continued somewhere else?
Thank you,
Damian
--
Damian Hobson-Garcia
.
Signed-off-by: Damian Hobson-Garcia
---
arch/s390/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..3a549b6 100644
--- a/arch/s390/include
.
Signed-off-by: Damian Hobson-Garcia
Acked-by: Mark Salter
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include
.
Signed-off-by: Damian Hobson-Garcia
---
arch/arm64/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..6ff7b8d 100644
--- a/arch/arm64
loc().
* Indicate that these patches are compile teseted only (I don't have hardware)
c6x:
* Indicate that this patch is untested (I don't have a cross compiler)
Cheers,
Damian
Damian Hobson-Garcia (3):
arm64: Provide default implementation for dma_{alloc,free}_attrs
c6x: Provide defa
().
* Indicate that these patches are compile teseted only (I don't have hardware)
c6x:
* Indicate that this patch is untested (I don't have a cross compiler)
Cheers,
Damian
Damian Hobson-Garcia (3):
arm64: Provide default implementation for dma_{alloc,free}_attrs
c6x: Provide default
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/arm64/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..6ff7b8d 100644
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
Acked-by: Mark Salter msal...@redhat.com
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/s390/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..3a549b6 100644
On 2013/05/23 18:47, Catalin Marinas wrote:
> On Thu, May 23, 2013 at 03:47:13AM +0100, Damian Hobson-Garcia wrote:
>> Hi Catalin,
>> On 2013/05/22 18:47, Catalin Marinas wrote:
>>> On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
>>>> Hel
On 2013/05/23 18:47, Catalin Marinas wrote:
On Thu, May 23, 2013 at 03:47:13AM +0100, Damian Hobson-Garcia wrote:
Hi Catalin,
On 2013/05/22 18:47, Catalin Marinas wrote:
On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
Hello,
On 2013/04/30 12:01, Damian Hobson-Garcia
Hi Catalin,
On 2013/05/22 18:47, Catalin Marinas wrote:
> On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
>> Hello,
>> On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
>>> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
Hi Catalin,
On 2013/05/22 18:47, Catalin Marinas wrote:
On Wed, May 22, 2013 at 03:37:17AM +0100, Damian Hobson-Garcia wrote:
Hello,
On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
both dma_alloc_attrs
Hello,
On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
> Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
> both dma_alloc_attrs() and dma_free_attrs(). All achitectures that do
> not define CONFIG_HAVE_DMA also have both of these definitions provided by
>
Hello,
On 2013/04/30 12:01, Damian Hobson-Garcia wrote:
Most architectures that define CONFIG_HAVE_DMA=y, have implementations for
both dma_alloc_attrs() and dma_free_attrs(). All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping
.
Signed-off-by: Damian Hobson-Garcia
---
arch/s390/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..3a549b6 100644
--- a/arch/s390/include
on parisc.
Signed-off-by: Damian Hobson-Garcia
---
arch/parisc/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/parisc/include/asm/dma-mapping.h
b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch/parisc/include/asm
.
Signed-off-by: Damian Hobson-Garcia
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include/asm/dma-mapping.h
.
Signed-off-by: Damian Hobson-Garcia
---
arch/arm64/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..6ff7b8d 100644
--- a/arch/arm64
ave cross compilers)
Cheers,
Damian
Damian Hobson-Garcia (4):
arm64: Provide default implementation for dma_{alloc,free}_attrs
c6x: Provide default implementation for dma_{alloc,free}_attrs
parisc: Provide default implementation for dma_{alloc,free}_attrs
s390: Provide default implementat
cross compilers)
Cheers,
Damian
Damian Hobson-Garcia (4):
arm64: Provide default implementation for dma_{alloc,free}_attrs
c6x: Provide default implementation for dma_{alloc,free}_attrs
parisc: Provide default implementation for dma_{alloc,free}_attrs
s390: Provide default implementation
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/arm64/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..6ff7b8d 100644
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include
on parisc.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/parisc/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/parisc/include/asm/dma-mapping.h
b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/s390/include/asm/dma-mapping.h | 17 +++--
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..3a549b6 100644
Hi Lars,
On 2013/04/22 15:11, Lars-Peter Clausen wrote:
> On 04/22/2013 07:09 AM, Damian Hobson-Garcia wrote:
>> Most architectures that define CONFIG_HAVE_DMA, have implementations for
>> both dma_alloc_attrs() and dma_free_attrs(). All achitectures that do
>> not define
Hi Lars,
On 2013/04/22 15:11, Lars-Peter Clausen wrote:
On 04/22/2013 07:09 AM, Damian Hobson-Garcia wrote:
Most architectures that define CONFIG_HAVE_DMA, have implementations for
both dma_alloc_attrs() and dma_free_attrs(). All achitectures that do
not define CONFIG_HAVE_DMA also have both
.
Signed-off-by: Damian Hobson-Garcia
---
arch/s390/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..91f7312 100644
--- a/arch/s390/include/asm/dma
on parisc.
Signed-off-by: Damian Hobson-Garcia
---
arch/parisc/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/parisc/include/asm/dma-mapping.h
b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch/parisc/include/asm
.
Signed-off-by: Damian Hobson-Garcia
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include/asm/dma-mapping.h
.
Signed-off-by: Damian Hobson-Garcia
---
arch/arm64/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..65ab181 100644
--- a/arch/arm64/include/asm/dma
CONFIG_HAVE_DMA=y,
but have no implementation for dma_{alloc,free}_attrs() by simply calling
dma_{alloc,free}_coherent() and throwing away the attrs argument.
Damian Hobson-Garcia (4):
Provide default implementation for dma_{alloc,free}_attrs on arm64
Provide default implementation for dma_
CONFIG_HAVE_DMA=y,
but have no implementation for dma_{alloc,free}_attrs() by simply calling
dma_{alloc,free}_coherent() and throwing away the attrs argument.
Damian Hobson-Garcia (4):
Provide default implementation for dma_{alloc,free}_attrs on arm64
Provide default implementation for dma_
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/arm64/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/include/asm/dma-mapping.h
b/arch/arm64/include/asm/dma-mapping.h
index 9947768..65ab181 100644
--- a/arch/arm64
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/c6x/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include
on parisc.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/parisc/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/parisc/include/asm/dma-mapping.h
b/arch/parisc/include/asm/dma-mapping.h
index 106b395..d0eae5f 100644
--- a/arch
.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/s390/include/asm/dma-mapping.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/s390/include/asm/dma-mapping.h
b/arch/s390/include/asm/dma-mapping.h
index 9411db65..91f7312 100644
--- a/arch/s390
-by: Damian Hobson-Garcia
---
drivers/uio/uio.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index c8b9262..b645c47 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -374,6 +374,7 @@ static int uio_get_minor(struct uio_device *idev
-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers/uio/uio.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index c8b9262..b645c47 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -374,6 +374,7 @@ static int uio_get_minor
On 2013/03/14 19:22, Sachin Kamat wrote:
This eliminates having an #ifdef returning NULL for the case
when OF is disabled.
Signed-off-by: Sachin Kamat
Cc: Damian Hobson-Garcia
---
Thank you,
Looks fine by me.
Acked-by: Damian Hobson-Garcia
--
To unsubscribe from this list: send the line
On 2013/03/14 19:22, Sachin Kamat wrote:
This eliminates having an #ifdef returning NULL for the case
when OF is disabled.
Signed-off-by: Sachin Kamat sachin.ka...@linaro.org
Cc: Damian Hobson-Garcia dhobs...@igel.co.jp
---
Thank you,
Looks fine by me.
Acked-by: Damian Hobson-Garcia dhobs
Dynamic regions allocated with dma_alloc_coherent() should use
dma_mmap_coherent() to perform memory mapping. Other regions
are simply ioremapped, the same way as in the uio subsystem base
implementation.
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio/uio_dmem_genirq.c | 33
Dynamic regions allocated with dma_alloc_coherent() should use
dma_mmap_coherent() to perform memory mapping. Other regions
are simply ioremapped, the same way as in the uio subsystem base
implementation.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers/uio/uio_dmem_genirq.c
ht be better to treat the IPMMU like a multifuction
device, with a core driver (ipmmu.c) in one location and the function
implementations in their own respective directories. Does drivers/mfd
sound like a good place for it?
Thanks,
Damian.
--
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp
--
to treat the IPMMU like a multifuction
device, with a core driver (ipmmu.c) in one location and the function
implementations in their own respective directories. Does drivers/mfd
sound like a good place for it?
Thanks,
Damian.
--
Damian Hobson-Garcia
IGEL Co.,Ltd
http://www.igel.co.jp
/uio_dmem_genirq.c:93:17:expected void *vaddr
drivers/uio/uio_dmem_genirq.c:93:17:got void [noderef] *internal_addr
Store the void * in the driver's private data instead.
Reported-by: Fengguang Wu
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio/uio_dmem_genirq.c |9 ++---
1 files
The same condition should be used both when allocating and freeing the
driver private data. When dev.of_node is non NULL, allocate a new
private data structure, otherwise use the values from the platform data.
Reported-by: Fengguang Wu
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio
to user space. Also deals with the case where failing to map
a region after successfully allocating others would not unmap the
successfully allocated regions before dying.
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio/uio_dmem_genirq.c | 12 ++--
1 files changed, 6 insertions(+), 6
DMA_ERROR_CODE is not defined on all architectures and is architecture
specific. Instead, use the constant, ~0 to indicate unmapped regions.
Reported-by: Fengguang Wu
Reported-by: Geert Uytterhoeven
Signed-off-by: Damian Hobson-Garcia
---
Documentation/DocBook/uio-howto.tmpl |2
Here are a few fixes for the uio_dmem_genirq driver which allows for
dynamic allocation/deallocation of UIO memory resources via the
DMA-mapping API.
Damian Hobson-Garcia (4):
drivers: uio_dmem_genirq: Don't mix address spaces for dynamic region
vaddr
drivers: uio_dmem_genirq: Don't use
Here are a few fixes for the uio_dmem_genirq driver which allows for
dynamic allocation/deallocation of UIO memory resources via the
DMA-mapping API.
Damian Hobson-Garcia (4):
drivers: uio_dmem_genirq: Don't mix address spaces for dynamic region
vaddr
drivers: uio_dmem_genirq: Don't use
DMA_ERROR_CODE is not defined on all architectures and is architecture
specific. Instead, use the constant, ~0 to indicate unmapped regions.
Reported-by: Fengguang Wu fengguang...@intel.com
Reported-by: Geert Uytterhoeven ge...@linux-m68k.org
Signed-off-by: Damian Hobson-Garcia dhobs
to user space. Also deals with the case where failing to map
a region after successfully allocating others would not unmap the
successfully allocated regions before dying.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers/uio/uio_dmem_genirq.c | 12 ++--
1 files changed
The same condition should be used both when allocating and freeing the
driver private data. When dev.of_node is non NULL, allocate a new
private data structure, otherwise use the values from the platform data.
Reported-by: Fengguang Wu fengguang...@intel.com
Signed-off-by: Damian Hobson-Garcia
/uio_dmem_genirq.c:93:17:expected void *vaddr
drivers/uio/uio_dmem_genirq.c:93:17:got void [noderef] asn:2*internal_addr
Store the void * in the driver's private data instead.
Reported-by: Fengguang Wu fengguang...@intel.com
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers
Hi Geert,
On 2012/11/04 22:20, Geert Uytterhoeven wrote:
> On Tue, Sep 25, 2012 at 8:09 AM, Damian Hobson-Garcia
> wrote:
>> are holding the device file open, the address returned to userspace is
>> DMA_ERROR_CODE.
>
> Only a small subset of the architectures
> (a
Hi Geert,
On 2012/11/04 22:20, Geert Uytterhoeven wrote:
On Tue, Sep 25, 2012 at 8:09 AM, Damian Hobson-Garcia
dhobs...@igel.co.jp wrote:
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.
Only a small subset of the architectures
(arm/ia64/microblaze
Signed-off-by: Damian Hobson-Garcia
---
Documentation/DocBook/uio-howto.tmpl | 56 ++
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/Documentation/DocBook/uio-howto.tmpl
b/Documentation/DocBook/uio-howto.tmpl
index ac3d001..db08c1a 100644
no processes
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio/Kconfig | 16 ++
drivers/uio/Makefile |1 +
drivers/uio/uio_dmem_genirq.c | 354
was as for static regions. The total number of
dynamic and static regions combined cannot exceed MAX_UIO_MAPS.
Changes from v1/RFC
* Add driver documentation to UIO HOWTO
* Remove sh7372 specific example code
Damian Hobson-Garcia (2):
Add new uio device for dynamic memory allocation
Add
was as for static regions. The total number of
dynamic and static regions combined cannot exceed MAX_UIO_MAPS.
Changes from v1/RFC
* Add driver documentation to UIO HOWTO
* Remove sh7372 specific example code
Damian Hobson-Garcia (2):
Add new uio device for dynamic memory allocation
Add
no processes
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers/uio/Kconfig | 16 ++
drivers/uio/Makefile |1 +
drivers/uio/uio_dmem_genirq.c
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
Documentation/DocBook/uio-howto.tmpl | 56 ++
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/Documentation/DocBook/uio-howto.tmpl
b/Documentation/DocBook/uio-howto.tmpl
index ac3d001
of
dynamic and static regions combined cannot exceed MAX_UIO_MAPS.
Any comments, especially with regard to exposing the dma-mapping API to
userspace in this way, would be greatly appreciated.
Damian Hobson-Garcia (2):
Add new uio device for dynamic memory allocation
ARM: shmobile: sh7372: Change VPU
no processes
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.
Signed-off-by: Damian Hobson-Garcia
---
drivers/uio/Kconfig | 16 ++
drivers/uio/Makefile |1 +
drivers/uio/uio_dmem_genirq.c | 356
This allows the VPU memory to be allocated dynamically only when it
is needed.
Signed-off-by: Damian Hobson-Garcia
---
arch/arm/mach-shmobile/setup-sh7372.c | 19 ++-
1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-shmobile/setup-sh7372.c
b/arch
This allows the VPU memory to be allocated dynamically only when it
is needed.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
arch/arm/mach-shmobile/setup-sh7372.c | 19 ++-
1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-shmobile
no processes
are holding the device file open, the address returned to userspace is
DMA_ERROR_CODE.
Signed-off-by: Damian Hobson-Garcia dhobs...@igel.co.jp
---
drivers/uio/Kconfig | 16 ++
drivers/uio/Makefile |1 +
drivers/uio/uio_dmem_genirq.c
of
dynamic and static regions combined cannot exceed MAX_UIO_MAPS.
Any comments, especially with regard to exposing the dma-mapping API to
userspace in this way, would be greatly appreciated.
Damian Hobson-Garcia (2):
Add new uio device for dynamic memory allocation
ARM: shmobile: sh7372: Change VPU
Hi Simon,
On 2012/08/25 16:13, Simon Horman wrote:
> On Wed, Jul 25, 2012 at 03:29:00PM +0900, Hideki EIRAKU wrote:
>> This is the Renesas IPMMU driver, IOMMU API implementation and IPMMU
>> device support for sh7372 (AP4EVB and Mackerel).
>>
>> The IPMMU module supports the MMU function and the
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