On 22 October 2014 18:11, Russell King - ARM Linux
wrote:
> On Wed, Oct 22, 2014 at 10:06:23AM -0600, mathieu.poir...@linaro.org wrote:
>> @@ -306,10 +324,13 @@ extern void _memset_io(volatile void __iomem *, int,
>> size_t);
>> __raw_readw(c)); __r; })
>>
Hi,
A question/request came up during our cache to cache analysis. We were
wondering if give an unique mmap2 id (major, minor, inode, inode
generation), if it was possible to determine a cpu socket id that memory
was attached to at the time of the captured perf event?
We ran into a scenario
On Wed, Oct 22, 2014 at 02:29:06PM +0200, Pali Rohár wrote:
> On Tuesday 21 October 2014 06:27:23 Guenter Roeck wrote:
> > On 10/20/2014 09:46 AM, Pali Rohár wrote:
> > > Ok, I will describe my problem. Guenter, maybe you can find
> > > another solution/fix for it.
> > >
> > > Calling
On 10/22, Peter Zijlstra wrote:
>
> So I worry about cache aliasing (not an issue on x86), so by touching
> 'random' pages that might be freed and reissued to back userspace, we
> could be accessing the one page through multiple virtual mappings which
> therefore result in aliases.
Or this page
On Wed, Oct 22, 2014 at 06:39:56AM +, Eunbong Song wrote:
Applying - but:
> + if(regs)
^^^
There should be a blank between if and opening parenthesis.
Ralf
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The dmaengine header abbreviates destination as at least two different strings.
Make a coherent use of a single one.
Signed-off-by: Maxime Ripard
Acked-by: Mark Brown
Acked-by: Laurent Pinchart
Acked-by: Stephen Warren
---
drivers/dma/bcm2835-dma.c | 2 +-
drivers/dma/edma.c
Split out the terminate_all command from device_control to a dma_device
callback. In order to preserve backward capability, still rely on
device_control if no such callback has been implemented.
Eventually, this will allow to create a generic dma_slave_caps callback.
Signed-off-by: Maxime Ripard
Hi,
As we discussed a couple of weeks ago, this is the third attempt at
creating a generic behaviour for slave capabilities retrieval so that
generic layers using dmaengine can actually rely on that.
That has been done mostly through two steps: by moving out the
sub-commands of the
See below ...
On 14-10-22 03:26 PM, Mikulas Patocka wrote:
This is Martin Petersen's xcopy patch
(https://git.kernel.org/cgit/linux/kernel/git/mkp/linux.git/commit/?h=xcopy=0bdeed274e16b3038a851552188512071974eea8)
with some bug fixes, ported to the current kernel.
This patch makes it possible
On Mon, 13 Oct 2014, Stefano Stabellini wrote:
> On Mon, 13 Oct 2014, Will Deacon wrote:
> > On Mon, Oct 13, 2014 at 12:16:14PM +0100, Stefano Stabellini wrote:
> > > On Fri, 10 Oct 2014, Stefano Stabellini wrote:
> > > > On Fri, 10 Oct 2014, Will Deacon wrote:
> > > > > On Fri, Oct 10, 2014 at
In order to migrate the drivers without triggering a BUG_ON for the converted
drivers, which would cause bisectability issues, we need to remove that check
before removing the device_control function entirely.
Signed-off-by: Maxime Ripard
---
drivers/dma/dmaengine.c | 2 --
1 file changed, 2
On Mon 20-10-14 11:22:12, Johannes Weiner wrote:
> pc->mem_cgroup had to be left intact after uncharge for the final LRU
> removal, and !PCG_USED indicated whether the page was uncharged. But
> since 0a31bc97c80c ("mm: memcontrol: rewrite uncharge API") pages are
> uncharged after the final LRU
dma_chan_get uses a rather interesting error handling and code path.
Change it to something more usual in the kernel.
Signed-off-by: Maxime Ripard
---
drivers/dma/dmaengine.c | 36 +++-
1 file changed, 19 insertions(+), 17 deletions(-)
diff --git
On Mon, Oct 20, 2014 at 11:22:11AM -0400, Johannes Weiner wrote:
> PCG_MEM is a remnant from an earlier version of 0a31bc97c80c ("mm:
> memcontrol: rewrite uncharge API"), used to tell whether migration
> cleared a charge while leaving pc->mem_cgroup valid and PCG_USED set.
> But in the final
On Wed, Oct 22, 2014 at 10:06:23AM -0600, mathieu.poir...@linaro.org wrote:
> @@ -306,10 +324,13 @@ extern void _memset_io(volatile void __iomem *, int,
> size_t);
> __raw_readw(c)); __r; })
> #define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force
Split the device_control callback of the ST-Ericsson COH901318 DMA driver to
make use of the newly introduced callbacks, that will eventually be used to
retrieve slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/coh901318.c | 137 +---
Split the device_control callback of the AMBA PL08x DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/amba-pl08x.c | 156 +++
1 file
The previous code was relying on the fact that the slave_caps were to be
defined on a per channel basis.
However, this proved to be a bit overkill, since every driver filling these so
far were hardcoding it, disregarding which channel was actually given.
Add these capabilities to the dma_device
Split the device_control callback of the Atmel HDMAC driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/at_hdmac.c | 121 +
1 file
The fact that the channel configuration is done in device_control is rather
misleading, since it's not really advertised as such, plus, the fact that the
framework exposes a function of its own makes it not really intuitive, while
we're losing the type checking whenever we pass that unsigned long
We are removing the dmaengine_device_control API, that shouldn't even have been
exposed in the first place. Change the callers to use the proper API.
Signed-off-by: Maxime Ripard
---
drivers/tty/serial/atmel_serial.c | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git
We are removing the dmaengine_device_control API, that shouldn't even have been
exposed in the first place. Change the callers to use the proper API.
Signed-off-by: Maxime Ripard
---
drivers/crypto/ux500/cryp/cryp_core.c | 4 ++--
drivers/crypto/ux500/hash/hash_core.c | 2 +-
2 files changed, 3
On 10/21/14 20:42, Stephen Rothwell wrote:
> Hi all,
>
> Changes since 20141021:
>
on x86_64:
when MEDIA_SUBDRV_AUTOSELECT is not enabled:
when DVB_USB_AZ6027=y and DVB_STB0899=m and DVB_STB6100=m:
drivers/built-in.o: In function `az6027_frontend_attach':
az6027.c:(.text+0x18c50d): undefined
Split out the pause and resume operations to callbacks of their own. In order
to preserve some backwark compatibility, the dmaengine_pause/dmaengine_resume
are still falling back on dmaengine_device_control.
Eventually, that will allow to get the device capabilities in a generic way,
removing the
Split the device_control callback of the Freescale EDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/fsl-edma.c | 106 +++--
1 file
dma_slave_caps is very important to the generic layers that might interact with
dmaengine, such as ASoC. Unfortunately, it has been added as yet another
dma_device callback, and most of the existing drivers haven't implemented it,
reducing its reliability.
Introduce a generic behaviour and a flag
Split the device_control callback of the DesignWare DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/dw/core.c | 82 +++
1 file
From: Mathieu Poirier
Some drivers on ARMv7 need 64 bit read and writes.
Signed-off-by: Mathieu Poirier
---
arch/arm/include/asm/io.h | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1805674..861e52c 100644
Split the device_control callback of the Freescale IMX DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/imx-dma.c | 103 +-
1 file
All tools/hv daemons do mandatory daemon() on startup. However, no pidfile
is created, this make it difficult for an init system to track such daemons.
Modern linux distros use systemd as their init system. It can handle the
daemonizing by itself, however, it requires a daemon to stay in
Split the device_control callback of the Intel MID DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/intel_mid_dma.c | 25 ++---
1 file changed, 6 insertions(+),
Split the device_control callback of the Cirrus Logic EP93xx driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/ep93xx_dma.c | 41 +++--
1 file
Split the device_control callback of the Qualcomm BAM DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/qcom_bam_dma.c | 85 +++---
1 file
Split the device_control callback of the Freescale IMX SDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/imx-sdma.c | 66 +++---
1 file
Split the device_control callback of the JZ4740 DMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/dma-jz4740.c | 20 +++-
1 file changed, 3 insertions(+), 17
Split the device_control callback of the Marvell MMP TDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/mmp_tdma.c | 82 +++---
1 file
Split the device_control callback of the IPU IDMAC driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/ipu/ipu_idmac.c | 96 -
1 file changed,
Nowadays, some drivers don't have anything in there channel allocation
callbacks anymore.
Remove the BUG_ON if those callbacks aren't implemented, in order to allow
drivers to not implement them.
Signed-off-by: Maxime Ripard
---
drivers/dma/dmaengine.c | 18 +++---
1 file changed,
On Mon, Oct 20, 2014 at 11:22:12AM -0400, Johannes Weiner wrote:
> pc->mem_cgroup had to be left intact after uncharge for the final LRU
> removal, and !PCG_USED indicated whether the page was uncharged. But
> since 0a31bc97c80c ("mm: memcontrol: rewrite uncharge API") pages are
> uncharged after
Split the device_control callback of the Marvell MMP PDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/mmp_pdma.c | 109 +
1 file
Split the device_control callback of the TI EDMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/edma.c | 50 +++---
1 file changed, 15
Split the device_control callback of the Broadcom BCM2835 DMA driver to make
use of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
Acked-by: Stephen Warren
---
drivers/dma/bcm2835-dma.c | 31
Split the device_control callback of the NVidia Tegra20 APB DMA driver to make
use of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/tegra20-apb-dma.c | 22 ++
1 file changed, 2
Split the device_control callback of the NBPF AXI DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/nbpfaxi.c | 93 +--
1 file
On Wed, 2014-10-22 at 17:50 +0400, Roman Gushchin wrote:
> Incoming packet is dropped silently by sk_filter(), if the skb was
> allocated from pfmemalloc reserves and the corresponding socket is
> not marked with the SOCK_MEMALLOC flag.
>
> Igb driver allocates pages for DMA with
On Wed, Oct 01, 2014 at 10:38:45AM +0100, Arnd Bergmann wrote:
[...]
> The arm32 implementations of pci_domain_nr/pci_proc_domain can probably be
> removed if we change the arm32 pcibios_init_hw function to call the new
> interfaces that set the domain number.
I wished, but it is a bit more
Split the device_control callback of the Hisilicon K3 DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/k3dma.c | 197
1 file
On Tue, Oct 14, 2014 at 06:31:09AM +, Romain Perier wrote:
> Several drivers create their own devicetree property when they register
> poweroff capabilities. This is for example the case for mfd, regulator
> or power drivers which define "vendor,system-power-controller" property.
> This patch
(resending to new documentation maintainer, as the original patch
seemingly got lost)
Jonathan,
Please apply the below patch documenting that hugetlbfs can be sticky-mounted.
Thanks beforehand,
Kirill
On Thu, Sep 04, 2014 at 10:14:31AM -0700, Ken Chen wrote:
> On Thu, Sep 4, 2014 at 6:20
Split the device_control callback of the Freescale MXS DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/mxs-dma.c | 59 ---
1 file
Split the device_control callback of the Super-H DMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
Acked-by: Laurent Pinchart
---
drivers/dma/sh/shdma-base.c | 72
Split the device_control callback of the Freescale MPC512x DMA driver to make
use of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/mpc512x_dma.c | 111 +-
1
Split the device_control callback of the TI CPPI41 DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/cppi41.c | 30 +-
1 file changed, 1 insertion(+), 29
Split the device_control callback of the SiRF Prima 2 DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/sirf-dma.c | 43 +--
1 file changed,
Split the device_control callback of the AMBA PL330 DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/pl330.c | 108 ++--
1 file
Split the device_control callback of the Moxart DMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/moxart-dma.c | 25 ++---
1 file changed, 2 insertions(+), 23
Split the device_control callback of the Freescale Elo DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
While we're at it, remove the useless prep_sg callback.
Signed-off-by: Maxime Ripard
---
drivers/dma/fsldma.c | 91
Split the device_control callback of the TI OMAP DMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/omap-dma.c | 51 +++---
1 file
On Wed, 22 Oct 2014, PERIER Romain wrote:
> This is related to the following subject "[RFC v3 PATCH 1/5] of: Add
> standard property for poweroff capability" and depends on the
> corresponding patch.
Then it should be sent in the same patch-set.
There's nothing I can do with this patch as is.
The Marvell XOR engine doesn't allow any operations that use to be defined in
device_control, it shouldn't need to be defined. Since it's going to be
deprecated, remove it altogether.
Signed-off-by: Maxime Ripard
---
drivers/dma/mv_xor.c | 9 -
1 file changed, 9 deletions(-)
diff --git
Split the device_control callback of the SA-11x0 DMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/sa11x0-dma.c | 158 +--
1 file
Grygorii Strashko writes:
> Hi Santosh,
>
> On 10/21/2014 09:05 PM, Santosh Shilimkar wrote:
>> On 10/20/2014 05:56 AM, Grygorii Strashko wrote:
>>> This patch switches Keystone 2 PM code to use Generic PM domains
>>> instead of PM clock domains because of the lack of DT support
>>> for the
Split the device_control callback of the Xilinx VDMA driver to make use of the
newly introduced callbacks, that will eventually be used to retrieve slave
capabilities.
Signed-off-by: Maxime Ripard
Acked-by: Laurent Pinchart
---
drivers/dma/xilinx/xilinx_vdma.c | 29
Rename the device_control callback of the Intel PCH DMA driver to terminate_all
since it's all it's really doing. That will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/pch_dma.c | 8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
We can now use a this_cpu_cmpxchg_double to update two 64
bit values that are the entire description of the per cpu
freelist. There is no need anymore to disable preempt.
Signed-off-by: Christoph Lameter
Index: linux/mm/slub.c
===
Dropping the page field is possible since the page struct address
of an object or a freelist pointer can now always be calcualted from
the address. No freelist pointer will be NULL anymore so use
NULL to signify the condition that the current cpu has no
percpu slab attached to it.
Signed-off-by:
Split the device_control callback of the ST-Ericsson DMA 40 driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/ste_dma40.c | 60 +++--
1 file
We had to insert a preempt enable/disable in the fastpath a while ago. This
was mainly due to a lot of state that is kept to be allocating from the per
cpu freelist. In particular the page field is not covered by
this_cpu_cmpxchg used in the fastpath to do the necessary atomic state
change for
Ending a list with NULL means that the termination of a list is the same
for all slab pages. The pointers of freelists otherwise always are
pointing to the address space of the page. Make termination of a
list possible by setting the lowest bit in the freelist address
and use the start address of
Rename the device_control callback of the TXX9 DMA driver to terminate_all
since it's all it's really doing. That will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/rapidio/devices/tsi721_dma.c | 8 ++--
1 file changed, 2 insertions(+), 6
Rename the device_control callback of the TXX9 DMA driver to terminate_all
since it's all it's really doing. That will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/txx9dmac.c | 9 ++---
1 file changed, 2 insertions(+), 7 deletions(-)
diff
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/fsl-edma.c | 18 +-
1 file changed, 5 insertions(+), 13 deletions(-)
Somehow the two branches in __slab_alloc do the same.
Unify them.
Signed-off-by: Christoph Lameter
Index: linux/mm/slub.c
===
--- linux.orig/mm/slub.c
+++ linux/mm/slub.c
@@ -2280,12 +2280,8 @@ redo:
if (node !=
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/sun6i-dma.c | 10 ++
1 file changed, 10 insertions(+)
diff --git
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/nbpfaxi.c | 18 +-
1 file changed, 5 insertions(+), 13 deletions(-)
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/edma.c | 21 +++--
1 file changed, 7 insertions(+), 14 deletions(-)
Split the device_control callback of the Samsung S3C24xxx DMA driver to make
use of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard
---
drivers/dma/s3c24xx-dma.c | 75 +++
1
On Wed, Oct 22, 2014 at 11:49:17AM -0400, Jonathan Corbet wrote:
> On Wed, 22 Oct 2014 00:00:14 +0900
> Masanari Iida wrote:
>
> > This patch fix speeling typo found in html files within
> > Documentation/DocBook/device-drivers.
> > It is because html files are generated from comments in source,
On Wed, 2014-10-22 at 11:10 -0400, Jason Cooper wrote:
>
> If you don't mind, could you split this
> patch in two? The first integrating into the crypto API (such that
> userspace could call into it), and the second enabling loadable module
> support?
>
Will do!
> > Signed-off-by: Eric Rost
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/omap-dma.c | 19 +--
1 file changed, 5 insertions(+), 14 deletions(-)
On Mon 20-10-14 11:22:10, Johannes Weiner wrote:
> Now that mem_cgroup_swapout() fully uncharges the page, every page
> that is still in use when reaching mem_cgroup_uncharge() is known to
> carry both the memory and the memory+swap charge. Simplify the
> uncharge path and remove the PCG_MEMSW
Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.
Make use of this code.
Signed-off-by: Maxime Ripard
---
drivers/dma/pl330.c | 19 +--
1 file changed, 5 insertions(+), 14 deletions(-)
Now that device_control has been split into several functions, and
device_slave_caps rendered useless, we can safely remove them.
Signed-off-by: Maxime Ripard
---
include/linux/dmaengine.h | 52 ++-
1 file changed, 6 insertions(+), 46 deletions(-)
set FEATURES_OK as per virtio 1.0 spec
Signed-off-by: Michael S. Tsirkin
---
include/uapi/linux/virtio_config.h | 2 ++
drivers/virtio/virtio.c| 29 ++---
2 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/include/uapi/linux/virtio_config.h
For the slave caps retrieval to be really useful, most drivers need to
implement it.
Hence, we need to be slightly more aggressive, and trigger a warning at
registration time for drivers that don't fill their caps infos in order to
encourage them to implement it.
Signed-off-by: Maxime Ripard
From: Rusty Russell
[Cornelia Huck: converted some missed fields]
Signed-off-by: Rusty Russell
Signed-off-by: Cornelia Huck
Signed-off-by: Michael S. Tsirkin
---
drivers/net/virtio_net.c | 31 +++
1 file changed, 19 insertions(+), 12 deletions(-)
diff --git
On Wed, 22 Oct 2014 00:00:14 +0900
Masanari Iida wrote:
> This patch fix speeling typo found in html files within
> Documentation/DocBook/device-drivers.
> It is because html files are generated from comments in source,
> so I have to fix comments in the source.
>
> Signed-off-by: Masanari Iida
From: Cornelia Huck
For virtio-1, we can theoretically have a more complex virtqueue
layout with avail and used buffers not on a contiguous memory area
with the descriptor table. For now, it's fine for a transport driver
to stay with the old layout: It needs, however, a way to access
the
From: Cornelia Huck
The CCW_CMD_SET_VQ command has a different format for revision 1+
devices, allowing to specify a more complex virtqueue layout. For
now, we stay however with the old layout and simply use the new
command format for virtio-1 devices.
Signed-off-by: Cornelia Huck
From: Rusty Russell
It seemed like a good idea, but it's actually a pain when we get more
than 32 feature bits. Just change it to a u32 for now.
Cc: Brian Swetland
Cc: Christian Borntraeger
Signed-off-by: Rusty Russell
Signed-off-by: Cornelia Huck
Acked-by: Pawel Moll
Acked-by: Ohad
From: Rusty Russell
Change the u32 to a u64, and make sure to use 1ULL everywhere!
Cc: Brian Swetland
Cc: Christian Borntraeger
[Thomas Huth: fix up virtio-ccw get_features]
Signed-off-by: Rusty Russell
Signed-off-by: Cornelia Huck
Acked-by: Pawel Moll
Acked-by: Ohad Ben-Cohen
On Mon 20-10-14 11:22:11, Johannes Weiner wrote:
> PCG_MEM is a remnant from an earlier version of 0a31bc97c80c ("mm:
> memcontrol: rewrite uncharge API"), used to tell whether migration
> cleared a charge while leaving pc->mem_cgroup valid and PCG_USED set.
> But in the final version,
Signed-off-by: Michael S. Tsirkin
---
include/uapi/linux/virtio_blk.h | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 9ad67b2..247c8ba 100644
--- a/include/uapi/linux/virtio_blk.h
+++
From: Thomas Huth
With the new SET-VIRTIO-REVISION command of the virtio 1.0 standard, we
can now negotiate the virtio-ccw revision after setting a channel online.
Note that we don't negotiate version 1 yet.
[Cornelia Huck: reworked revision loop a bit]
Reviewed-by: David Hildenbrand
Signed-off-by: Michael S. Tsirkin
---
include/uapi/linux/virtio_net.h | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index 172a7f0..b5f1677 100644
--- a/include/uapi/linux/virtio_net.h
+++
From: Cornelia Huck
Note that we care only about the fields still in use for virtio v1.0.
Reviewed-by: Thomas Huth
Reviewed-by: David Hildenbrand
Signed-off-by: Cornelia Huck
Signed-off-by: Michael S. Tsirkin
---
drivers/block/virtio_blk.c | 4
1 file changed, 4 insertions(+)
diff
On Thu, 2014-09-04 at 17:26 +0300, Andy Shevchenko wrote:
> This introduces a new helper and switches current users to use it. All are
> compiled tested, hexdump and kmemleak are tested by their test suits.
>
Gently ping on this series.
Any comments?
> Changelog v4:
> - hexdump is amended to
From: Cornelia Huck
Now that virtio-ccw has everything needed to support virtio 1.0 in
place, try to enable it if the host supports it.
Reviewed-by: David Hildenbrand
Signed-off-by: Cornelia Huck
Signed-off-by: Michael S. Tsirkin
---
drivers/s390/kvm/virtio_ccw.c | 2 +-
1 file changed, 1
We (ab)use virtio conversion functions for device-specific
config space accesses.
Reviewed-by: David Hildenbrand
Signed-off-by: Rusty Russell
Signed-off-by: Cornelia Huck
Signed-off-by: Michael S. Tsirkin
---
include/linux/virtio_config.h | 9 ++---
1 file changed, 6 insertions(+), 3
virtio 1.0 makes all memory structures LE, so
we need APIs to conditionally do a byteswap on BE
architectures.
To make it easier to check code statically,
add virtio specific types for multi-byte integers
in memory.
Add low level wrappers that do a byteswap conditionally, these will be
useful
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