100% agreed on the rationale, and I hope you can keep this crap out!
___
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Luc, can you please take your corporate bullshit out of this? I can
assume you know Dave personally and should be clearly aware that he's
everything but a corporate drone.
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Before we get into all these fringe drivers:
- I've not seen any progrss on -get_sb BKL removal for a while
- locks.c is probably a higher priorit, too.
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Any chance you could drop the Cc list a bit for the i810/i830
discussion? It's not relevant to most lists and people Cc'ed here.
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On Wed, Oct 02, 2013 at 04:27:41PM +0200, Jan Kara wrote:
Hello,
In my quest for changing locking around page faults to make things easier
for
filesystems I found out get_user_pages() users could use a cleanup. The
knowledge about necessary locking for get_user_pages() is in tons of
On Tue, Oct 18, 2016 at 12:03:28AM +0200, Arnd Bergmann wrote:
> This is a set of patches that I hope to get into v4.9 in some form
> in order to turn on the -Wmaybe-uninitialized warnings again.
Hi Arnd,
I jsut complained to Geert that I was introducing way to many
bugs or pointless warnings
On Mon, May 30, 2016 at 01:54:06PM +0200, Krzysztof Kozlowski wrote:
> The dma-mapping core and the implementations do not change the
> DMA attributes passed by pointer. Thus the pointer can point to const
> data. However the attributes do not have to be a bitfield. Instead
> unsigned long will
On Thu, Nov 24, 2016 at 11:11:34AM -0700, Logan Gunthorpe wrote:
> * Regular DAX in the FS doesn't work at this time because the FS can
> move the file you think your transfer to out from under you. Though I
> understand there's been some work with XFS to solve that issue.
The file system will
On Wed, Jun 01, 2016 at 07:36:42AM +0200, Krzysztof Kozlowski wrote:
> > No really for this patch, but I would much prefer to document them next
> > to the code in the long run. Also I really think these BIT() macros
> > are a distraction compared to the (1 << N) notation.
>
> Not much
On Mon, Dec 05, 2016 at 12:46:14PM -0700, Jason Gunthorpe wrote:
> In any event the allocator still needs to track which regions are in
> use and be able to hook 'free' from userspace. That does suggest it
> should be integrated into the nvme driver and not a bolt on driver..
Two totally
On Tue, Dec 06, 2016 at 09:38:50AM -0700, Jason Gunthorpe wrote:
> > > I'm not opposed to mapping /dev/nvmeX. However, the lookup is trivial
> > > to accomplish in sysfs through /sys/dev/char to find the sysfs path of the
> > > device-dax instance under the nvme device, or if you already have the
On Tue, Dec 06, 2016 at 05:41:05PM +0200, Michael S. Tsirkin wrote:
> __CHECK_ENDIAN__ isn't on by default presumably because
> it triggers too many sparse warnings for correct code.
> But virtio is now clean of these warnings, and
> we want to keep it this way - enable this for
> sparse builds.
>
On Tue, May 24, 2016 at 07:29:25AM +0100, Dave Airlie wrote:
>
> Hi Linus,
>
> here is the C++ guards warning fix from Arnd.
So why the hell do we have C++ guards in kernel headers?
On Thu, Dec 12, 2013 at 10:35:01AM +0400, Vyacheslav Dubeyko wrote:
> I think that I can implement support of resource forks by means of xattr
> way. Also, currently, I am implementing HFS+ compressed files support.
> So, I can clean up old-fashioned way of resource forks support in HFS+
> driver
The opendir issue is something that came up before, both in the reiser4
context and with hfsplus. I think we'll need to put this patch in ASAP
to fix the semantic breakage caused by it, as well as other implications
of having ->lookup on a hardlinkable object.
Acked-by: Christoph Hellwig
Signed-off-by: Christoph Hellwig
---
drivers/net/usb/kaweth.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 1e9cdca..f64b25c 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1177,12 +1177,6 @@ err_fw
Signed-off-by: Christoph Hellwig
---
Documentation/DMA-API.txt | 13 -
drivers/usb/host/ehci-hcd.c | 2 +-
drivers/usb/host/fotg210-hcd.c | 2 +-
drivers/usb/host/fusbh200-hcd.c | 2 +-
drivers/usb/host/oxu210hp-hcd.c | 2 +-
5 files changed, 4 insertions(+), 17
All driver should be using dma_set_mask / pci_set_dma_mask to try
to set the dma mask instead of just querying it. Without that some
iommu implementations may not work.
pci_dma_supported is removed entirely, but dma_supported stays for
dma_ops implementations for now.
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/net/ethernet/amd/pcnet32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/amd/pcnet32.c
b/drivers/net/ethernet
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/tw68/tw68-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/tw68/tw68-core.c
b/drivers/media/pci/tw68
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/saa7164/saa7164-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/saa7164/saa7164-core.c
b/drivers
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/saa7134/saa7134-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/saa7134/saa7134-core.c
b/drivers
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/cx88/cx88-alsa.c | 2 +-
drivers/media/pci/cx88/cx88-mpeg.c | 2 +-
drivers/media/pci/cx88/cx88-video.c | 2 +-
3 files changed, 3 insertions
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/cx25821/cx25821-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/cx25821/cx25821-core.c
b/drivers
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/cx23885/cx23885-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/cx23885/cx23885-core.c
b/drivers
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/netup_unidvb
This ensures the dma mask that is supported by the driver is recorded
in the device structure.
Signed-off-by: Christoph Hellwig
---
drivers/tty/serial/mpsc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 82bb6d1
Just try to set a 64-bit DMA mask first and retry with the smaller dma_mask
if dma_set_mask failed.
Signed-off-by: Christoph Hellwig
---
drivers/gpu/drm/nouveau/nouveau_ttm.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c
b
dma_set_mask already checks for a supported DMA mask before updating it,
the call to dma_supported is redundant.
Signed-off-by: Christoph Hellwig
---
drivers/net/ethernet/sfc/efx.c | 8 +++-
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/sfc/efx.c b
Signed-off-by: Christoph Hellwig
---
drivers/net/usb/usbnet.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index b4cf107..9497d51 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1661,12 +1661,6
Signed-off-by: Christoph Hellwig
---
drivers/parisc/ccio-dma.c| 2 --
include/asm-generic/pci-dma-compat.h | 6 --
2 files changed, 8 deletions(-)
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 957b421..8e11fb2 100644
--- a/drivers/parisc/ccio-dma.c
On Tue, May 05, 2015 at 05:39:57PM +0200, Benjamin Gaignard wrote:
> Since few months I'm looking for Linaro to how do Secure Data Path (SPD).
> I have tried and implemented multiple thinks but I always facing architecture
> issues so I would like to get your help to solve the problem.
>
> First
Before we get into all these fringe drivers:
- I've not seen any progrss on ->get_sb BKL removal for a while
- locks.c is probably a higher priorit, too.
Any chance you could drop the Cc list a bit for the i810/i830
discussion? It's not relevant to most lists and people Cc'ed here.
100% agreed on the rationale, and I hope you can keep this crap out!
Luc, can you please take your corporate bullshit out of this? I can
assume you know Dave personally and should be clearly aware that he's
everything but a corporate drone.
On Tue, Apr 25, 2017 at 12:20:48PM -0600, Logan Gunthorpe wrote:
> This patch introduces functions which kmap the pages inside an sgl.
> These functions replace a common pattern of kmap(sg_page(sg)) that is
> used in more than 50 places within the kernel.
>
> The motivation for this work is to
On Tue, Apr 25, 2017 at 12:20:49PM -0600, Logan Gunthorpe wrote:
> This is a prep patch to add a new error code to libiscsi. We want to
> rework some kmap calls to be able to fail. When we do, we'd like to
> use this error code.
The kmap case in iscsi_tcp_segment_map can already fail. Please add
On Wed, Apr 26, 2017 at 12:11:33PM -0600, Logan Gunthorpe wrote:
> Ok, well for starters I think you are mistaken about kmap being able to
> fail. I'm having a hard time finding many users of that function that
> bother to check for an error when calling it.
A quick audit of the arch code shows
This just duplicates the generic implementation.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/xen/swiotlb-xen.c | 12
1 file changed, 12 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index c3a04b2d7532..82fc54f8eb77
All ia64 dma_mapping_ops instances already have a mapping_error member.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/ia64/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/ia64/include/asm/dma-mapping.h
b/arch/ia64/include/asm/dma-mapping.h
The dma alloc interface returns an error by return NULL, and the
mapping interfaces rely on the mapping_error method, which the dummy
ops already implement correctly.
Thus remove the DMA_ERROR_CODE define.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm64/include/asm/dma-map
DMA_ERROR_CODE is not a public API and will go away. Instead properly
unwind based on the loop counter.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/dma/ioat/init.c | 24 +++-
1 file changed, 7 insertions(+), 17 deletions(-)
diff --git a/drivers/dm
Hi all,
for a while we have a generic implementation of the dma mapping routines
that call into per-arch or per-device operations. But right now there
still are various bits in the interfaces where don't clearly operate
on these ops. This series tries to clean up a lot of those (but not all
And instead wire it up as method for all the dma_map_ops instances.
Note that this also means the arch specific check will be fully instead
of partially applied in the AMD iommu driver.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/x86/include/asm/dma-mapping.h | 3 ---
ar
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/c6x/include/asm/dma-mapping.h | 5 -
1 file changed, 5 deletions(-)
diff --git a/arch/c6x/include/asm/dma-mapping.h
b/arch/c6x/include/asm/dma-mapping.h
index aca9f755e4f8..05daf1038111 100644
--- a/arch/c6x/include/asm/dma-map
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
include/linux/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index a57875309bfd..3e5908656226 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-map
That way the driver doesn't have to rely on DMA_ERROR_CODE, which
is not a public API and going away.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/net/ethernet/ibm/ibmveth.c | 159 +
1 file changed, 74 insertions(+), 85 deletions(-)
diff
microblaze does not return errors for dma_map_page.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/microblaze/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/microblaze/include/asm/dma-mapping.h
b/arch/microblaze/include/asm/dma-mapping.h
DMA_ERROR_CODE is going to go away, so don't rely on it. Instead
define a ->mapping_error method for all IOMMU based dma operation
instances. The direct ops don't ever return an error and don't
need a ->mapping_error method.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/hexagon/include/asm/dma-mapping.h | 2 --
arch/hexagon/kernel/dma.c | 12 +---
arch/hexagon/kernel/hexagon_ksyms.c| 1 -
3 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/arch/hexagon/include/a
DMA_ERROR_CODE is not a public API and will go away soon. dma dma-iommu
driver already implements a proper ->mapping_error method, so it's only
using the value internally. Add a new local define using the value
that arm64 which is the only current user of dma-iommu.
Signed-off-by: Christ
Besides removing the last instance of the set_dma_mask method this also
reduced the code duplication.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/powerpc/platforms/cell/iommu.c | 25 +
1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/arch/p
By the time cell_pci_dma_dev_setup calls cell_dma_dev_setup no device can
have the fixed map_ops set yet as it's only set by the set_dma_mask
method. So move the setup for the fixed case to be only called in that
place instead of indirecting through cell_dma_dev_setup.
Signed-off-by: Christoph
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/hexagon/include/asm/dma-mapping.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/hexagon/include/asm/dma-mapping.h
b/arch/hexagon/include/asm/dma-mapping.h
index 9c15cb5271a6..463dbc18f853 100644
--- a/arch/hexagon/include/a
Same behavior, less code duplication.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm/common/dmabounce.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 4aabf117e136..d89a0b56b245
DMA_ERROR_CODE is not supposed to be used by drivers.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/firmware/tegra/ivc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/tegra/ivc.c b/drivers/firmware/tegra/ivc.c
index 29ecfd
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/powerpc/include/asm/dma-mapping.h | 1 -
arch/powerpc/kernel/dma.c | 13 -
2 files changed, 4 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/include/asm/dma-mapping.h
b/arch/powerpc/include/a
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/iommu/amd_iommu.c | 18 +-
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 63cacf
sh does not return errors for dma_map_page.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/sh/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/sh/include/asm/dma-mapping.h
b/arch/sh/include/asm/dma-mapping.h
index d99008af5f73..9b06be07db4d
We can just use pci32_dma_ops.
Btw, given that leon is 32-bit and appears to be PCI based, do even need
the special case for it in get_arch_dma_ops at all?
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/sparc/include/asm/dma-mapping.h | 3 +--
arch/sparc/kernel/ioport.c
s390 can also use noop_dma_ops, and while that currently does not return
errors it will so in the future. Implementing the mapping_error method
is the proper way to have per-ops error conditions.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/s390/include/asm/dma-mapping.
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/sparc/include/asm/dma-mapping.h | 2 --
arch/sparc/kernel/iommu.c| 12 +---
arch/sparc/kernel/iommu_common.h | 2 ++
arch/sparc/kernel/pci_s
These just duplicate the default behavior if no method is provided.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
lib/dma-noop.c | 12
1 file changed, 12 deletions(-)
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index de26c8b68f34..643a074f139d 100644
--- a/lib/dma-
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/x86/kernel/pci-nommu.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index a88952
openrisc does not return errors for dma_map_page.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/openrisc/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/openrisc/include/asm/dma-mapping.h
b/arch/openrisc/include/asm/dma-mapping.h
index 0c0075
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm/common/dmabounce.c| 16 ---
arch/arm/include/asm/dma-iommu.h | 2 ++
arch/arm/include/asm/dma-mapping.h | 1 -
arch/arm/mm/dma-mapping.c
These just duplicate the default behavior if no method is provided.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
lib/dma-virt.c | 12
1 file changed, 12 deletions(-)
diff --git a/lib/dma-virt.c b/lib/dma-virt.c
index dcd4df1f7174..5c4f11329721 100644
--- a/lib/dma-
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/x86/kernel/pci-calgary_64.c | 24
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kern
DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/xen/swiotlb-xen.c | 12 ++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a0f006
for xen_swiotlb_dma_ops can now be marked
static as well.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm/xen/mm.c | 17
arch/x86/xen/pci-swiotlb-xen.c | 14 ---
drivers/xen/swiotlb-xen.c | 93 ++
include/xen/swiotlb-xen.h
All dma_map_ops instances now handle their errors through
->mapping_error.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/x86/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/x86/include/asm/dma-mapping.h
b/arch/x86/include/asm/dma-mappin
return 0.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/gpu/drm/exynos/exynos_drm_fb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c
b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index c77a5aced81a..d48fd7c918f8
Same behavior, less code duplication.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/mips/loongson64/common/dma-swiotlb.c | 19 +--
1 file changed, 5 insertions(+), 14 deletions(-)
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c
b/arch/mips/loongson64/comm
ich means always supported.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/sparc/include/asm/dma-mapping.h | 3 ---
arch/sparc/kernel/iommu.c| 40 +++-
arch/sparc/kernel/ioport.c | 22 ++--
arch/sparc/kernel/pc
And update the documentation - dma_mapping_error has been supported
everywhere for a long time.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
Documentation/DMA-API-HOWTO.txt | 31 +--
include/linux/dma-mapping.h | 5 -
2 files changed, 5 inse
xtensa already implements the mapping_error method for its only
dma_map_ops instance.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/xtensa/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/xtensa/include/asm/dma-mapping.h
b/arch/xtensa/include/a
dma-noop is the only dma_mapping_ops instance for m32r and does not return
errors.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/m32r/include/asm/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/m32r/include/asm/dma-mapping.h
b/arch/m32r/include/a
And instead wire it up as method for all the dma_map_ops instances.
Note that the code seems a little fishy for dmabounce and iommu, but
for now I'd like to preserve the existing behavior 1:1.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm/common/dmabounce.c| 1 +
ar
This implementation is simply bogus - hexagon only has a simple
direct mapped DMA implementation and thus doesn't care about the
address.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/hexagon/include/asm/dma-mapping.h | 2 --
arch/hexagon/kernel/dma.c | 9 --
dev_addr isn't even a dma_addr_t, and DMA_ERROR_CODE has never been
a valid driver API. Add a bool mapped flag instead.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/gpu/drm/armada/armada_fb.c | 2 +-
drivers/gpu/drm/armada/armada_gem.c | 5 ++---
drivers/gpu/drm/
This implementation is simply bogus - hexagon only has a simple
direct mapped DMA implementation and thus doesn't care about the
address.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/openrisc/include/asm/dma-mapping.h | 7 ---
1 file changed, 7 deletions(-)
diff --git
These just duplicate the default behavior if no method is provided.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/tile/kernel/pci-dma.c | 30 --
1 file changed, 30 deletions(-)
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/powerpc/kernel/dma.c | 4
include/linux/dma-mapping.h | 6 --
2 files changed, 10 deletions(-)
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 41c749586bd2..466c9f07b288 100644
--- a/arch/powerpc/
On Fri, Jun 16, 2017 at 08:10:15PM +0200, Christoph Hellwig wrote:
> I plan to create a new dma-mapping tree to collect all this work.
> Any volunteers for co-maintainers, especially from the iommu gang?
Ok, I've created the new tree:
git://git.infradead.org/users/hch/dma-mapping.git fo
On Tue, Jun 20, 2017 at 02:14:36PM +0100, Robin Murphy wrote:
> Hi Christoph,
>
> On 20/06/17 13:41, Christoph Hellwig wrote:
> > On Fri, Jun 16, 2017 at 08:10:15PM +0200, Christoph Hellwig wrote:
> >> I plan to create a new dma-mapping tree to collect all this work.
&g
On Tue, Jun 20, 2017 at 11:19:02AM +0200, Daniel Vetter wrote:
> Ack for the 2 drm patches, but I can also pick them up through drm-misc if
> you prefer that (but then it'll be 4.14).
Nah, I'll plan to set up a dma-mapping tree so that we'll have common
place for dma-mapping work.
On Tue, Jun 20, 2017 at 11:04:00PM +1000, Stephen Rothwell wrote:
> git://git.linaro.org/people/mszyprowski/linux-dma-mapping.git#dma-mapping-next
>
> Contacts: Marek Szyprowski and Kyungmin Park (cc'd)
>
> I have called your tree dma-mapping-hch for now. The other tree has
> not been updated
On Wed, Jun 21, 2017 at 12:24:28PM -0700, tndave wrote:
> Thanks for doing this.
> So archs can still have their own definition for dma_set_mask() if
> HAVE_ARCH_DMA_SET_MASK is y?
> (and similarly for dma_set_coherent_mask() when
> CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK is y)
> Any plan to
On Wed, Jun 21, 2017 at 03:32:39PM +0200, Marek Szyprowski wrote:
> linux-next
> was a side effect of that. I think that for now it can be dropped in favor
> of
> Christoph's tree. I can also do some review and help in maintainers work if
> needed, although I was recently busy with other stuff.
>
On Sat, Jun 24, 2017 at 10:36:56AM -0500, Benjamin Herrenschmidt wrote:
> I think we still need to do it. For example we have a bunch new "funky"
> cases.
I have no plan to do away with the selection - I just want a better
interface than the current one.
On Fri, May 26, 2017 at 10:30:09AM +0800, jeffy wrote:
> Hi sean,
>
> On 05/25/2017 11:30 PM, Sean Paul wrote:
> > On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote:
> > > The system would crash when trying to alloc zero sized gem buffer:
> > > [6.712435] Unable to handle kernel NULL
And instead wire it up as method for all the dma_map_ops instances.
Note that this also means the arch specific check will be fully instead
of partially applied in the AMD iommu driver.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/x86/include/asm/dma-mapping.h | 3 ---
ar
This just duplicates the generic implementation.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
drivers/xen/swiotlb-xen.c | 12
1 file changed, 12 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index c3a04b2d7532..82fc54f8eb77
This implementation is simply bogus - openrisc only has a simple
direct mapped DMA implementation and thus doesn't care about the
address.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/openrisc/include/asm/dma-mapping.h | 7 ---
1 file changed, 7 deletions(-)
diff --git
ich means always supported.
Signed-off-by: Christoph Hellwig <h...@lst.de>
Acked-by: David S. Miller <da...@davemloft.net>
---
arch/sparc/include/asm/dma-mapping.h | 3 ---
arch/sparc/kernel/iommu.c| 40 +++-
arch/sparc/kernel/ioport.c
These just duplicate the default behavior if no method is provided.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
lib/dma-virt.c | 12
1 file changed, 12 deletions(-)
diff --git a/lib/dma-virt.c b/lib/dma-virt.c
index dcd4df1f7174..5c4f11329721 100644
--- a/lib/dma-
And instead wire it up as method for all the dma_map_ops instances.
Note that the code seems a little fishy for dmabounce and iommu, but
for now I'd like to preserve the existing behavior 1:1.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arm/common/dmabounce.c| 1 +
ar
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
include/linux/dma-mapping.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index a57875309bfd..3e5908656226 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-map
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/hexagon/include/asm/dma-mapping.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/hexagon/include/asm/dma-mapping.h
b/arch/hexagon/include/asm/dma-mapping.h
index 9c15cb5271a6..463dbc18f853 100644
--- a/arch/hexagon/include/a
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