On Mon, 13 Jul 2009 21:17:21 -0500
Becky Bruce wrote:
>
> On Jul 9, 2009, at 8:04 PM, FUJITA Tomonori wrote:
>
> > swiotlb_bus_to_virt is unncessary; we can use swiotlb_bus_to_phys and
> > phys_to_virt instead.
>
> phys_to_virt (also, virt_to_phys) is invalid for highmem addresses on
> ppc.
On Jul 10, 2009, at 12:12 AM, Ingo Molnar wrote:
* FUJITA Tomonori wrote:
- removes unused (and unnecessary) hooks in swiotlb.
- adds dma_capable() and converts swiotlb to use it. It can be used
to
know if a memory area is dma capable or not. I added
is_buffer_dma_capable() for the same
On Jul 9, 2009, at 8:04 PM, FUJITA Tomonori wrote:
swiotlb_bus_to_virt is unncessary; we can use swiotlb_bus_to_phys and
phys_to_virt instead.
phys_to_virt (also, virt_to_phys) is invalid for highmem addresses on
ppc. In most of the uses in this file, it doesn't matter, as the
iotlb buff
On Mon, 13 Jul 2009 16:50:43 -0500
Becky Bruce wrote:
> > talked about defining something like struct dma_data. Then we could
> >
> > struct dev_archdata {
> > ...
> >
> > struct dma_data *ddata;
> > };
> >
> > or
> >
> > struct dev_archdata {
> > ...
> >
> > struct dma_data d
I have an mpc8378 system with 512MB ram and 256MB flash (NOR). When I start the
system I get the infamous message vmalloc failure. If I do cat /proc/meminfo I
can see that I have only 212MB of VMALLOC space.
I tried the advanced options and change the KERNEL_START to 0xb000 (instead
of 0xc
On Mon, Jul 13, 2009 at 09:59:54PM +0200, Joakim Tjernlund wrote:
[...]
> > > While being at it, the reason for me needing this is that the spi_mpc83xx
> > > driver
> > > was recently converted to a OF only driver so I have no way of defining
> > > my own
> > > CS function anymore. While OF is go
On Jul 9, 2009, at 8:47 PM, FUJITA Tomonori wrote:
I'm trying to convert POWERPC to use asm-generic/dma-mapping-common.h.
POWERPC needs addr_needs_map() in struct dma_mapping_ops for SWIOTLB
support but I want to avoid add addr_needs_map() in struct
dma_map_ops. IIRC, you guys think it as a te
Anton Vorontsov wrote on 13/07/2009 19:34:55:
>
> On Mon, Jul 13, 2009 at 06:01:02PM +0200, Joakim Tjernlund wrote:
> >
> > Anton Vorontsov wrote on 13/07/2009 17:19:11:
> > >
> > > Hi all,
> > >
> > > I've been sitting on these patches for some time, but now it appears
> > > that the set_sync()
On Wed, 08 Jul 2009 11:12:42 +1000
Benjamin Herrenschmidt wrote:
> On Wed, 2009-07-08 at 01:18 +0400, Andrey Gusev wrote:
>
> > I tried this drive on ide1 and ide2, there are same issue. This
> > drive worked on P-III before (as separate on channel, with another
> > hard drive and with cdrom) an
Hi Leonid,
probably, the following article on PPC DMA could help:
http://lebon.org.ua/?p=5
Best regards,
Mikhail Zolotaryov
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On Mon, Jul 13, 2009 at 9:31 PM, Grant Likely wrote:
> On Mon, Jul 13, 2009 at 9:39 AM, srikanth
> krishnakar wrote:
> >
> >
> > On Mon, Jul 13, 2009 at 8:32 PM, Grant Likely >
> > wrote:
> >>
> >> On Mon, Jul 13, 2009 at 1:16 AM, srikanth
> >> krishnakar wrote:
> >> > Hi all,
> >> >
> >> > Kerne
On Mon, Jul 13, 2009 at 8:32 PM, Grant Likely wrote:
> On Mon, Jul 13, 2009 at 1:16 AM, srikanth
> krishnakar wrote:
> > Hi all,
> >
> > Kernel : Linux-2.6.29
> > Arch: Powerpc (ppc44x)
> > Target: Xilinx ML507 Virtex5
> >
> > I have an issue in "Reset System" of Xilinx ML507 target board. I am
>
On Mon, Jul 13, 2009 at 06:01:02PM +0200, Joakim Tjernlund wrote:
>
> Anton Vorontsov wrote on 13/07/2009 17:19:11:
> >
> > Hi all,
> >
> > I've been sitting on these patches for some time, but now it appears
> > that the set_sync() feature is needed elsewhere. So here are the
> > patches.
> >
>
Joakim Tjernlund/Transmode wrote on 13/07/2009 18:01:02:
>
> Anton Vorontsov wrote on 13/07/2009 17:19:11:
> >
> > Hi all,
> >
> > I've been sitting on these patches for some time, but now it appears
> > that the set_sync() feature is needed elsewhere. So here are the
> > patches.
> >
> > Joakim,
On Mon, Jul 13, 2009 at 9:39 AM, srikanth
krishnakar wrote:
>
>
> On Mon, Jul 13, 2009 at 8:32 PM, Grant Likely
> wrote:
>>
>> On Mon, Jul 13, 2009 at 1:16 AM, srikanth
>> krishnakar wrote:
>> > Hi all,
>> >
>> > Kernel : Linux-2.6.29
>> > Arch: Powerpc (ppc44x)
>> > Target: Xilinx ML507 Virtex5
>
Anton Vorontsov wrote on 13/07/2009 17:19:11:
>
> Hi all,
>
> I've been sitting on these patches for some time, but now it appears
> that the set_sync() feature is needed elsewhere. So here are the
> patches.
>
> Joakim, I think this is what you need.
Yes, it sure looks so :) I will have to look
This is needed to set GPIO's values synchronously.
Signed-off-by: Anton Vorontsov
---
arch/powerpc/include/asm/gpio.h | 11 +++
arch/powerpc/sysdev/qe_lib/gpio.c | 27 +++
2 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/a
Sometimes it's necessary to set GPIO values synchronously, e.g.
when CPU's GPIOs go to a FPGA and the FPGA has no latch-enable line,
so intermediate values on GPIO lines may trigger unnecessary actions
by the FPGA.
Another usage is chip-select muxes, e.g. using X GPIOs as address lines
to mux 2^X
Hi all,
I've been sitting on these patches for some time, but now it appears
that the set_sync() feature is needed elsewhere. So here are the
patches.
Joakim, I think this is what you need.
Thanks,
--
Anton Vorontsov
email: cbouatmai...@gmail.com
irc://irc.freenode.net/bd2
On Mon, Jul 13, 2009 at 1:16 AM, srikanth
krishnakar wrote:
> Hi all,
>
> Kernel : Linux-2.6.29
> Arch: Powerpc (ppc44x)
> Target: Xilinx ML507 Virtex5
>
> I have an issue in "Reset System" of Xilinx ML507 target board. I am using
> Compact Flash to boot the target ( using system ACE file to boot t
Hi,
I'm on a mpc5121 platform, kernel 2.6.24.6, and I'm using the mpc512x_psc_spi
driver to communicate with a touch screen controller.
I'm sending commands and reading data from the controller using 24-bit packet
(3 bytes).
The speed of the SPI is set to 640 KHz.
I thought that I would need 8/6
On Monday 13 July 2009, Sauce.Cheng wrote:
> I want to get data from kernel space to user space indirectly using mmap()
> but i dont know how I can do , anyone can give me some advices ?
>
> firstly, fetch data by DMA to a memory allocated by "kmalloc"
> then i want to mmap it to user space and s
On Mon, 2009-07-13 at 18:53 +0900, FUJITA Tomonori wrote:
> On Mon, 13 Jul 2009 10:40:29 +0100
> Ian Campbell wrote:
>
> > On Mon, 2009-07-13 at 05:20 +0100, FUJITA Tomonori wrote:
> > > On Fri, 10 Jul 2009 15:02:00 +0100
> > > Ian Campbell wrote:
> > >
> > > > On Fri, 2009-07-10 at 14:35 +0900
On Mon, 13 Jul 2009 10:40:29 +0100
Ian Campbell wrote:
> On Mon, 2009-07-13 at 05:20 +0100, FUJITA Tomonori wrote:
> > On Fri, 10 Jul 2009 15:02:00 +0100
> > Ian Campbell wrote:
> >
> > > On Fri, 2009-07-10 at 14:35 +0900, FUJITA Tomonori wrote:
> > > > I don't think that we need to take accoun
On Mon, 2009-07-13 at 05:20 +0100, FUJITA Tomonori wrote:
> On Fri, 10 Jul 2009 15:02:00 +0100
> Ian Campbell wrote:
>
> > On Fri, 2009-07-10 at 14:35 +0900, FUJITA Tomonori wrote:
> > > I don't think that we need to take account of dom0 support; we don't
> > > have a clear idea about an acceptab
On Mon, 13 Jul 2009 13:20:22 +0900
FUJITA Tomonori wrote:
> On Fri, 10 Jul 2009 16:12:48 +0200
> Ingo Molnar wrote:
>
> > > functionality and reimplemented the surrounding infrastructure in
> > > terms of that (and incorporating our additional requirements). I
> > > prototyped this (it is cur
Hi all,
Kernel : Linux-2.6.29
Arch: Powerpc (ppc44x)
Target: Xilinx ML507 Virtex5
I have an issue in "Reset System" of Xilinx ML507 target board. I am using
Compact Flash to boot the target ( using system ACE file to boot the
target), during the process reset or reboot command on the target, I am
Hi everyone
there is a problem of my own driver
I want to get data from kernel space to user space indirectly using mmap()
but i dont know how I can do , anyone can give me some advices ?
firstly, fetch data by DMA to a memory allocated by "kmalloc"
then i want to mmap it to user space and save
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