On Wed, Oct 7, 2020 at 4:12 PM Tomasz Figa wrote:
>
> On Wed, Oct 7, 2020 at 4:09 PM Daniel Vetter wrote:
> >
> > On Wed, Oct 7, 2020 at 3:34 PM Tomasz Figa wrote:
> > >
> > > On Wed, Oct 7, 2020 at 3:06 PM Jason Gunthorpe wrote:
> > > >
> > > > On Wed, Oct 07, 2020 at 02:58:33PM +0200, Daniel
On Wed, Oct 7, 2020 at 4:23 PM Daniel Vetter wrote:
>
> On Wed, Oct 7, 2020 at 4:12 PM Tomasz Figa wrote:
> >
> > On Wed, Oct 7, 2020 at 4:09 PM Daniel Vetter wrote:
> > >
> > > On Wed, Oct 7, 2020 at 3:34 PM Tomasz Figa wrote:
> > > >
> > > > On Wed, Oct 7, 2020 at 3:06 PM Jason Gunthorpe
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
On Wed, Oct 07, 2020 at 11:00:20AM -0500, Rob Herring wrote:
> On Wed, Oct 07, 2020 at 04:24:32AM +0300, Laurent Pinchart wrote:
> > Convert the mxsfb binding to YAML. The deprecated binding is dropped, as
> > neither the DT sources nor the driver support it anymore. The converted
> > binding is
All we need are a pages array, pin_user_pages_fast can give us that
directly. Plus this avoids the entire raw pfn side of get_vaddr_frames.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Inki Dae
Cc: Joonyoung Shim
Cc: Seung-Woo Kim
Cc: Kyungmin Park
Cc: Kukjin Kim
Cc: Krzysztof
Way back it was a reasonable assumptions that iomem mappings never
change the pfn range they point at. But this has changed:
- gpu drivers dynamically manage their memory nowadays, invalidating
ptes with unmap_mapping_range when buffers get moved
- contiguous dma allocations have moved from
This is used by media/videbuf2 for persistent dma mappings, not just
for a single dma operation and then freed again, so needs
FOLL_LONGTERM.
Unfortunately current pup_locked doesn't support FOLL_LONGTERM due to
locking issues. Rework the code to pull the pup path out from the
mmap_sem critical
Way back it was a reasonable assumptions that iomem mappings never
change the pfn range they point at. But this has changed:
- gpu drivers dynamically manage their memory nowadays, invalidating
ptes with unmap_mapping_range when buffers get moved
- contiguous dma allocations have moved from
All we need are a pages array, pin_user_pages_fast can give us that
directly. Plus this avoids the entire raw pfn side of get_vaddr_frames.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Andrew Morton
Cc: John Hubbard
Cc: Jérôme Glisse
Cc: Jan Kara
Cc: Dan Williams
Cc:
Hi all,
This developed from a discussion with Jason, starting with some patches
touching get_vaddr_frame that I typed up.
The problem is that way back VM_IO | VM_PFNMAP mappings were pretty
static, and so just following the ptes to derive a pfn and then use that
somewhere else was ok.
But we're
Way back it was a reasonable assumptions that iomem mappings never
change the pfn range they point at. But this has changed:
- gpu drivers dynamically manage their memory nowadays, invalidating
ptes with unmap_mapping_range when buffers get moved
- contiguous dma allocations have moved from
There's three ways to access pci bars from userspace: /dev/mem, sysfs
files, and the old proc interface. Two check against
iomem_is_exclusive, proc never did. And with CONFIG_IO_STRICT_DEVMEM,
this starts to matter, since we don't want random userspace having
access to pci bars while a driver is
The exynos g2d interface is very unusual, but it looks like the
userptr objects are persistent. Hence they need FOLL_LONGTERM.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Inki Dae
Cc: Joonyoung Shim
Cc: Seung-Woo Kim
Cc: Kyungmin Park
Cc: Kukjin Kim
Cc: Krzysztof Kozlowski
Cc:
The media model assumes that buffers are all preallocated, so that
when a media pipeline is running we never miss a deadline because the
buffers aren't allocated or available.
This means we cannot fix the v4l follow_pfn usage through
mmu_notifier, without breaking how this all works. The only
The code seems to stuff these pfns into iommu pts (or something like
that, I didn't follow), but there's no mmu_notifier to ensure that
access is synchronized with pte updates.
Hence mark these as unsafe. This means that with
CONFIG_STRICT_FOLLOW_PFN, these will be rejected.
Real fix is to wire
On Mon, Oct 5, 2020 at 5:15 AM Ville Syrjälä
wrote:
>
> On Fri, Oct 02, 2020 at 10:55:52AM -0700, Rob Clark wrote:
> > On Fri, Oct 2, 2020 at 4:05 AM Ville Syrjälä
> > wrote:
> > >
> > > On Fri, Oct 02, 2020 at 01:52:56PM +0300, Ville Syrjälä wrote:
> > > > On Thu, Oct 01, 2020 at 05:25:55PM
Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
the region") /dev/kmem zaps ptes when the kernel requests exclusive
acccess to an iomem region. And with CONFIG_IO_STRICT_DEVMEM, this is
the default for all driver uses.
Except there's two more ways to access pci bars: sysfs and
It's the only user. This also garbage collects the CONFIG_FRAME_VECTOR
symbol from all over the tree (well just one place, somehow omap media
driver still had this in its Kconfig, despite not using it).
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Pawel Osciak
Cc: Marek Szyprowski
Cc:
These are persistent, not just for the duration of a dma operation.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Andrew Morton
Cc: John Hubbard
Cc: Jérôme Glisse
Cc: Jan Kara
Cc: Dan Williams
Cc: linux...@kvack.org
Cc: linux-arm-ker...@lists.infradead.org
Cc:
Add the helpers and register definitions needed to read out the common
and per-PHY LTTPR capabilities and perform link training in the LTTPR
non-transparent mode.
v2:
- Add drm_dp_dpcd_read_phy_link_status() and DP_PHY_LTTPR() here instead
of adding these to i915. (Ville)
v3:
- Use memmove() to
On Wed, Oct 7, 2020 at 6:53 PM Jason Gunthorpe wrote:
>
> On Wed, Oct 07, 2020 at 06:44:18PM +0200, Daniel Vetter wrote:
> >
> > - /*
> > - * While get_vaddr_frames() could be used for transient (kernel
> > - * controlled lifetime) pinning of memory pages all current
> > - *
Hi Lukasz,
On Monday 21 Sep 2020 at 13:20:06 (+0100), Lukasz Luba wrote:
[..]
> /**
> - * freq_get_state() - get the cooling state corresponding to a frequency
> + * freq_get_state() - get the performance index corresponding to a frequency
If we change the meaning of the return value, I think
Hi Lukasz,
On Monday 21 Sep 2020 at 13:20:05 (+0100), Lukasz Luba wrote:
> The Energy Model (EM) framework supports devices such as Devfreq. Create
> new registration functions which automatically register EM for the thermal
> devfreq_cooling devices. This patch prepares the code for coming
On 10/7/20 3:24 AM, Laurent Pinchart wrote:
[...]
> properties:
>compatible:
> -enum:
> - - fsl,imx23-lcdif
> - - fsl,imx28-lcdif
> - - fsl,imx6sx-lcdif
> - - fsl,imx8mq-lcdif
> +oneOf:
> + - enum:
> + - fsl,imx23-lcdif
> + -
On 10/06/20 13:04, Rob Clark wrote:
> On Tue, Oct 6, 2020 at 3:59 AM Qais Yousef wrote:
> >
> > On 10/05/20 16:24, Rob Clark wrote:
> >
> > [...]
> >
> > > > RT planning and partitioning is not easy task for sure. You might want
> > > > to
> > > > consider using affinities too to get stronger
On 10/7/20 2:42 AM, Laurent Pinchart wrote:
> Hi Marek,
>
> On Wed, Oct 07, 2020 at 12:38:50AM +0200, Marek Vasut wrote:
>> On 10/6/20 11:15 PM, Rob Herring wrote:
>>> On Sun, 04 Oct 2020 00:48:01 +0200, Marek Vasut wrote:
NXP's i.MX8MM has an LCDIF as well.
Signed-off-by: Marek
On Wed, Oct 07, 2020 at 03:34:01PM +0200, Tomasz Figa wrote:
> I think the userptr zero-copy hack should be able to go away indeed,
> given that we now have CMA that allows having carveouts backed by
> struct pages and having the memory represented as DMA-buf normally.
This also needs to figure
On Wed, Oct 07, 2020 at 02:58:33PM +0200, Daniel Vetter wrote:
> On Wed, Oct 7, 2020 at 2:48 PM Tomasz Figa wrote:
> >
> > On Wed, Oct 7, 2020 at 2:44 PM Jason Gunthorpe wrote:
> > >
> > > On Wed, Oct 07, 2020 at 02:33:56PM +0200, Marek Szyprowski wrote:
> > > > Well, it was in vb2_get_vma()
syzbot has found a reproducer for the following issue on:
HEAD commit:c85fb28b Merge tag 'arm64-fixes' of git://git.kernel.org/p..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17406d7050
kernel config:
On 10/7/20 10:43 AM, Lucas Stach wrote:
> On Mi, 2020-10-07 at 10:32 +0200, Marek Vasut wrote:
>> On 10/7/20 3:24 AM, Laurent Pinchart wrote:
>> [...]
>>> +properties:
>>> + compatible:
>>> +enum:
>>> + - fsl,imx23-lcdif
>>> + - fsl,imx28-lcdif
>>> + - fsl,imx6sx-lcdif
>>> +
On 10/7/20 3:33 PM, Laurent Pinchart wrote:
> Hi Marek,
>
> On Wed, Oct 07, 2020 at 10:55:24AM +0200, Marek Vasut wrote:
>> On 10/7/20 10:43 AM, Lucas Stach wrote:
>>> On Mi, 2020-10-07 at 10:32 +0200, Marek Vasut wrote:
On 10/7/20 3:24 AM, Laurent Pinchart wrote:
[...]
>
On Wed, Oct 07, 2020 at 02:33:56PM +0200, Marek Szyprowski wrote:
> Well, it was in vb2_get_vma() function, but now I see that it has been
> lost in fb639eb39154 and 6690c8c78c74 some time ago...
There is no guarentee that holding a get on the file says anthing
about the VMA. This needed to
On 10/7/20 3:24 AM, Laurent Pinchart wrote:
[...]
> + bus-width:
> +enum: [16, 18, 24]
> +description: |
> + The output bus width. This value overrides the configuration
> + derived from the connected device (encoder or panel). It should
On Wed, Oct 07, 2020 at 04:11:59PM +0200, Tomasz Figa wrote:
> We also need to bring back the vma_open() that somehow disappeared
> around 4.2, as Marek found.
No
Jason
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
On Wed, Oct 07, 2020 at 03:06:17PM +0200, Tomasz Figa wrote:
> Note that vb2_vmalloc is only used for in-kernel CPU usage, e.g. the
> contents being copied by the driver between vb2 buffers and some
> hardware FIFO or other dedicated buffers. The memory does not go to
> any hardware DMA.
That is
On 10/7/20 3:24 AM, Laurent Pinchart wrote:
[...]
> +properties:
> + compatible:
> +enum:
> + - fsl,imx23-lcdif
> + - fsl,imx28-lcdif
> + - fsl,imx6sx-lcdif
> + - fsl,imx8mq-lcdif
There is no fsl,imx8mq-lcdif in drivers/gpu/drm/mxsfb/mxsfb_drv.c,
so the DT must specify
On Mon, Oct 05, 2020 at 05:15:40PM +0200, Maxime Ripard wrote:
> The Allwinner SoCs with two TCONs and LVDS output can use both to drive an
> LVDS dual-link. Add a new property to express that link between these two
> TCONs.
>
> Signed-off-by: Maxime Ripard
> ---
>
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
On Wed, Oct 07, 2020 at 04:24:32AM +0300, Laurent Pinchart wrote:
> Convert the mxsfb binding to YAML. The deprecated binding is dropped, as
> neither the DT sources nor the driver support it anymore. The converted
> binding is named fsl,lcdif.yaml to match the usual bindings naming
> scheme.
>
>
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
On Tue, Oct 6, 2020 at 8:00 PM Chrisanthus, Anitha
wrote:
>
> Hi Rob,
> Thanks for the your prompt review. Please see my comments/questions inline.
> For everything else, I can incorporate the changes in v2.
> Anitha
>
> > -Original Message-
> > From: Rob Herring
> > Sent: Tuesday,
On Fri, Oct 2, 2020 at 9:17 PM Anitha Chrisanthus
wrote:
>
> Register definitions for Keem Bay display driver
>
> v2: removed license text (Sam)
> v3: Squashed all 59 commits to one
> v4: review changes from Sam Ravnborg
> renamed dev_p to kmb
> v5: corrected spellings
> v6: corrected
On Wed, Oct 7, 2020 at 3:25 PM Christian König wrote:
>
> Am 07.10.20 um 15:20 schrieb Thomas Zimmermann:
> > Hi
> >
> > Am 07.10.20 um 15:10 schrieb Daniel Vetter:
> >> On Wed, Oct 7, 2020 at 2:57 PM Thomas Zimmermann
> >> wrote:
> >>> Hi
> >>>
> >>> Am 02.10.20 um 11:58 schrieb Daniel Vetter:
Hi all,
This series aims to replace one-element arrays with flexible-array
members.
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
Use a
On Monday 21 Sep 2020 at 13:20:04 (+0100), Lukasz Luba wrote:
> Devfreq cooling needs to now the correct status of the device in order
> to operate. Do not rely on Devfreq last_status which might be a stale data
> and get more up-to-date values of the load.
>
> Devfreq framework can change the
On 10/07/20 08:57, Rob Clark wrote:
> Yeah, I think we will end up making some use of uclamp.. there is
> someone else working on that angle
>
> But without it, this is a case that exposes legit prioritization
> problems with commit_work which we should fix ;-)
I wasn't suggesting this as an
On Mon, Aug 31, 2020 at 3:03 PM Anitha Chrisanthus
wrote:
>
> This is a new DRM driver for Intel's KeemBay SOC.
> The SoC couples an ARM Cortex A53 CPU with an Intel
> Movidius VPU.
>
> This driver is tested with the KMB EVM board which is the refernce baord
> for Keem Bay SOC. The SOC's display
> -Original Message-
> From: Rob Herring
> Sent: Wednesday, October 7, 2020 6:45 AM
> To: Chrisanthus, Anitha
> Cc: dri-devel ; Paauwe, Bob J
> ; Dea, Edmund J ;
> Vetter, Daniel ; Sam Ravnborg
>
> Subject: Re: [PATCH v8 1/4] drm/kmb: Keem Bay driver register definition
>
> On Fri,
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
On Wed, 07 Oct 2020 04:24:34 +0300, Laurent Pinchart wrote:
> When the PCB routes the display data signals in an unconventional way,
> the output bus width may differ from the bus width of the connected
> panel or encoder. For instance, when a 18-bit RGB panel has its R[5:0],
> G[5:0] and B[5:0]
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use “flexible array members”[1] for these cases. The older
style of one-element or zero-length arrays should no longer be used[2].
On Wed, Oct 7, 2020 at 7:36 PM Jason Gunthorpe wrote:
>
> On Wed, Oct 07, 2020 at 06:44:24PM +0200, Daniel Vetter wrote:
> > Way back it was a reasonable assumptions that iomem mappings never
> > change the pfn range they point at. But this has changed:
> >
> > - gpu drivers dynamically manage
On Wed, Oct 7, 2020 at 8:41 PM Bjorn Helgaas wrote:
>
> Capitalize subject, like other patches in this series and previous
> drivers/pci history.
>
> On Wed, Oct 07, 2020 at 06:44:23PM +0200, Daniel Vetter wrote:
> > Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
> > the
On Wed, Oct 7, 2020 at 9:33 PM Dan Williams wrote:
>
> On Wed, Oct 7, 2020 at 11:11 AM Daniel Vetter wrote:
> >
> > Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
> > the region") /dev/kmem zaps ptes when the kernel requests exclusive
> > acccess to an iomem region. And with
On Wed, Oct 7, 2020 at 7:27 PM Jason Gunthorpe wrote:
>
> On Wed, Oct 07, 2020 at 06:44:20PM +0200, Daniel Vetter wrote:
> > Way back it was a reasonable assumptions that iomem mappings never
> > change the pfn range they point at. But this has changed:
> >
> > - gpu drivers dynamically manage
Capitalize subject, like other patches in this series and previous
drivers/pci history.
On Wed, Oct 07, 2020 at 06:44:23PM +0200, Daniel Vetter wrote:
> Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
> the region") /dev/kmem zaps ptes when the kernel requests exclusive
>
On Wed, Oct 7, 2020 at 9:00 PM Jason Gunthorpe wrote:
>
> On Wed, Oct 07, 2020 at 08:10:34PM +0200, Daniel Vetter wrote:
> > On Wed, Oct 7, 2020 at 7:36 PM Jason Gunthorpe wrote:
> > >
> > > On Wed, Oct 07, 2020 at 06:44:24PM +0200, Daniel Vetter wrote:
> > > > Way back it was a reasonable
On Wed, Oct 7, 2020 at 7:39 PM Jason Gunthorpe wrote:
>
> On Wed, Oct 07, 2020 at 06:44:26PM +0200, Daniel Vetter wrote:
> > The code seems to stuff these pfns into iommu pts (or something like
> > that, I didn't follow), but there's no mmu_notifier to ensure that
> > access is synchronized with
On Wed, Oct 7, 2020 at 11:11 AM Daniel Vetter wrote:
>
> Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
> the region") /dev/kmem zaps ptes when the kernel requests exclusive
> acccess to an iomem region. And with CONFIG_IO_STRICT_DEVMEM, this is
> the default for all driver
On 10/7/20 9:44 AM, Daniel Vetter wrote:
...
@@ -1414,15 +1410,10 @@ void hl_unpin_host_memory(struct hl_device *hdev,
struct hl_userptr *userptr)
userptr->sgt->nents,
userptr->dir);
On Wed, Oct 07, 2020 at 06:44:22PM +0200, Daniel Vetter wrote:
> There's three ways to access pci bars from userspace: /dev/mem, sysfs
> files, and the old proc interface. Two check against
> iomem_is_exclusive, proc never did. And with CONFIG_IO_STRICT_DEVMEM,
> this starts to matter, since we
On 10/7/20 9:44 AM, Daniel Vetter wrote:
All we need are a pages array, pin_user_pages_fast can give us that
directly. Plus this avoids the entire raw pfn side of get_vaddr_frames.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Inki Dae
Cc: Joonyoung Shim
Cc: Seung-Woo Kim
Cc:
On 10/7/20 9:44 AM, Daniel Vetter wrote:
The exynos g2d interface is very unusual, but it looks like the
userptr objects are persistent. Hence they need FOLL_LONGTERM.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Inki Dae
Cc: Joonyoung Shim
Cc: Seung-Woo Kim
Cc: Kyungmin Park
Cc:
On 10/7/20 9:44 AM, Daniel Vetter wrote:
These are persistent, not just for the duration of a dma operation.
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
Cc: Andrew Morton
Cc: John Hubbard
Cc: Jérôme Glisse
Cc: Jan Kara
Cc: Dan Williams
Cc: linux...@kvack.org
Cc:
On Wed, Oct 7, 2020 at 10:33 PM John Hubbard wrote:
>
> On 10/7/20 9:44 AM, Daniel Vetter wrote:
> > All we need are a pages array, pin_user_pages_fast can give us that
> > directly. Plus this avoids the entire raw pfn side of get_vaddr_frames.
> >
> > Signed-off-by: Daniel Vetter
> > Cc: Jason
On Wed, Oct 7, 2020 at 11:13 PM John Hubbard wrote:
>
> On 10/7/20 9:44 AM, Daniel Vetter wrote:
> > This is used by media/videbuf2 for persistent dma mappings, not just
> > for a single dma operation and then freed again, so needs
> > FOLL_LONGTERM.
> >
> > Unfortunately current pup_locked
Hi! I thought this patch rang a bell, we actually already had some discussion
about this since there's a couple of other systems this was causing issues for.
Unfortunately it never seems like that patch got sent out. Satadru?
(if I don't hear back from them soon, I'll just send out a patch for
On 10/7/20 9:44 AM, Daniel Vetter wrote:
It's the only user. This also garbage collects the CONFIG_FRAME_VECTOR
symbol from all over the tree (well just one place, somehow omap media
driver still had this in its Kconfig, despite not using it).
Signed-off-by: Daniel Vetter
Cc: Jason Gunthorpe
On Wed, Oct 7, 2020 at 3:23 PM Dan Williams wrote:
>
> On Wed, Oct 7, 2020 at 12:49 PM Daniel Vetter wrote:
> >
> > On Wed, Oct 7, 2020 at 9:33 PM Dan Williams
> > wrote:
> > >
> > > On Wed, Oct 7, 2020 at 11:11 AM Daniel Vetter
> > > wrote:
> > > >
> > > > Since 3234ac664a87 ("/dev/mem:
On Wed, 2020-10-07 at 10:27 +0100, Matteo Franchin wrote:
> Add ABGR format with 10-bit components packed in 64-bit per pixel.
> This format can be used to handle
> VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16 on little-endian
> architectures.
trivial note:
> diff --git
Hi Mikko,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tegra-drm/drm/tegra/for-next]
[also build test ERROR on tegra/for-next linus/master v5.9-rc8 next-20201007]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we
Hi Linus,
Karol found two last minute nouveau fixes, they both fix crashes, the
TTM one follows what other drivers do already, and the other is for
bailing on load on unrecognised chipsets.
Thanks,
Dave.
drm-fixes-2020-10-08:
drm nouveau fixes for 5.9 final
nouveau:
- fix crash in TTM alloc
Hi all,
On Thu, 8 Oct 2020 14:09:03 +1100 Stephen Rothwell
wrote:
>
> After merging the drm-misc tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
In file included from include/linux/clk.h:13,
from drivers/gpu/drm/ingenic/ingenic-drm-drv.c:10:
> On Oct 5, 2020, at 20:06, Dave Airlie wrote:
>
> From: Dave Airlie
>
> Both fns checked mem == NULL, just move the check outside.
>
> Signed-off-by: Dave Airlie
That’s a nice cleanup.
Reviewed-by: Zack Rusin
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dri-devel mailing list
Hi all,
After merging the drm-misc tree, today's linux-next build (x86_64
allmodconfig) failed like this:
I noticed that the ingenic driver revert I had been waiting for appeared
in hte drm-misc tree, so I removed the BROKEN dependency for it, but it
produced the above errors, so I have marked
> On Oct 5, 2020, at 20:06, Dave Airlie wrote:
>
> From: Dave Airlie
>
> This just copies the fallback to vmwgfx, I'm going to iterate on this
> a bit until it's not the same as the fallback path.
>
> Signed-off-by: Dave Airlie
What are your plans for it? i.e. how is it going to be
On Thu, 8 Oct 2020 at 13:41, Zack Rusin wrote:
>
>
> > On Oct 5, 2020, at 20:06, Dave Airlie wrote:
> >
> > From: Dave Airlie
> >
> > This just copies the fallback to vmwgfx, I'm going to iterate on this
> > a bit until it's not the same as the fallback path.
> >
> > Signed-off-by: Dave Airlie
On Mon, Oct 5, 2020 at 6:45 AM Christoph Hellwig wrote:
>
> How is this going to deal with VIVT caches?
Hrm. That's a good question. I'm not sure I totally have my head
around it but, I guess we could make sure to call
invalidate_kernel_vmap_range() in begin_cpu_access() and
On 10/7/20 9:44 AM, Daniel Vetter wrote:
This is used by media/videbuf2 for persistent dma mappings, not just
for a single dma operation and then freed again, so needs
FOLL_LONGTERM.
Unfortunately current pup_locked doesn't support FOLL_LONGTERM due to
locking issues. Rework the code to pull
On Wed, Oct 7, 2020 at 11:37 PM John Hubbard wrote:
>
> On 10/7/20 2:32 PM, Daniel Vetter wrote:
> > On Wed, Oct 7, 2020 at 10:33 PM John Hubbard wrote:
> >>
> >> On 10/7/20 9:44 AM, Daniel Vetter wrote:
> ...
> >>> @@ -398,15 +399,11 @@ static void g2d_userptr_put_dma_addr(struct
> >>>
Hi Mikko,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tegra-drm/drm/tegra/for-next]
[also build test WARNING on tegra/for-next linus/master v5.9-rc8 next-20201007]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting
On 10/7/20 9:44 AM, Daniel Vetter wrote:
Way back it was a reasonable assumptions that iomem mappings never
change the pfn range they point at. But this has changed:
- gpu drivers dynamically manage their memory nowadays, invalidating
ptes with unmap_mapping_range when buffers get moved
-
On Wed, Oct 7, 2020 at 12:49 PM Daniel Vetter wrote:
>
> On Wed, Oct 7, 2020 at 9:33 PM Dan Williams wrote:
> >
> > On Wed, Oct 7, 2020 at 11:11 AM Daniel Vetter
> > wrote:
> > >
> > > Since 3234ac664a87 ("/dev/mem: Revoke mappings when a driver claims
> > > the region") /dev/kmem zaps ptes
Hi Mikko,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tegra-drm/drm/tegra/for-next]
[also build test ERROR on tegra/for-next linus/master v5.9-rc8 next-20201007]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we
On 10/7/20 2:32 PM, Daniel Vetter wrote:
On Wed, Oct 7, 2020 at 10:33 PM John Hubbard wrote:
On 10/7/20 9:44 AM, Daniel Vetter wrote:
...
@@ -398,15 +399,11 @@ static void g2d_userptr_put_dma_addr(struct g2d_data *g2d,
dma_unmap_sgtable(to_dma_dev(g2d->drm_dev), g2d_userptr->sgt,
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