If nobody comes up with an objections I'm going to merge that through
drm-misc-next.
Thanks,
Christian.
Am 12.10.20 um 10:52 schrieb Christian König:
Patch "495c10cc1c0c CHROMIUM: dma-buf: restore args..."
adds a workaround for a bug in mmap_region.
As the comment states ->mmap() callback can
在 2020/11/3 15:56, Thomas Zimmermann 写道:
Hi
Thanks, the code looks good already. There just are a few nits below.
Thanks for the help with the review code.
Add the new api devm_drm_irq_install and himbc use the new interface as
one patch or two?
Am 03.11.20 um 03:10 schrieb Tian Tao:
Ad
No more users. Get rid of it and remove the traces in documentation.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
Documentation/driver-api/io-mapping.rst | 22 +---
include/linux/io-mapping.h | 42 +---
2 files changed, 9 insertion
None of these mapping requires the side effect of disabling pagefaults and
preemption.
Use io_mapping_map_local_wc() instead, and clean up gtt_user_read() and
gtt_user_write() to use a plain copy_from_user() as the local maps are not
disabling pagefaults.
Signed-off-by: Thomas Gleixner
Cc: Jani
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266...@linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523...@linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achie
On Tue, Nov 03, 2020 at 03:34:00PM +0200, Sakari Ailus wrote:
> Add a printk modifier %p4cc (for pixel format) for printing V4L2 and DRM
> pixel formats denoted by fourccs. The fourcc encoding is the same for both
> so the same implementation can be used.
...
> +static noinline_for_stack
> +char
cherry-pick 3 patches at chromeos-5.4 to msm-next-staging
Kuogee Hsieh (2):
FROMLIST: drm/msm/dp: return correct connection status after suspend
FROMLIST: drm/msm/dp: fixes wrong connection state caused by failure
of link train
Stephen Boyd (1):
FIXUP: FROMLIST: drm/msm/dp: return corr
Hi Stephen,
On Tue, Nov 03, 2020 at 11:31:21AM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the drm-misc-fixes tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
>
> drivers/gpu/drm/vc4/vc4_drv.c: In function 'vc4_drm_unbind':
> drivers/gpu/drm/vc4/vc4
No reason having the same code in every architecture
Signed-off-by: Thomas Gleixner
Cc: Chris Zankel
Cc: Max Filippov
Cc: linux-xte...@linux-xtensa.org
---
V3: Remove the kmap types cruft
---
arch/xtensa/Kconfig |1
arch/xtensa/include/asm/fixmap.h |4 +--
arch/xtensa/i
The implementation details in the documentation are outdated and not really
helpful. Remove them.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
Documentation/driver-api/io-mapping.rst | 22 --
1 file changed, 22 deletions(-)
--- a/Documentation/driver-api/io-mapping
Now that the scheduler can deal with migrate disable properly, there is no
real compelling reason to make it only available for RT.
There are quite some code pathes which needlessly disable preemption in
order to prevent migration and some constructs like kmap_atomic() enforce
it implicitly.
Maki
On Mon, Nov 02, 2020 at 09:45:38PM +0100, Daniel Vetter wrote:
> On Mon, Nov 02, 2020 at 05:29:08PM +0100, Maxime Ripard wrote:
> > The commit dcda7c28bff2 ("drm/vc4: kms: Add functions to create the state
> > objects") removed the last users of the vc4 variable, but didn't remove
> > that variable
On Tue, Nov 3, 2020 at 5:14 AM Joe Perches wrote:
>
> On Mon, 2020-11-02 at 16:20 +0100, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski
> >
> > Andy brought to my attention the fact that users allocating an array of
> > equally sized elements should check if the size multiplication does
No reason having the same code in every architecture.
Signed-off-by: Thomas Gleixner
Cc: linux-c...@vger.kernel.org
---
V3: Does not compile with gcc 10
---
arch/csky/Kconfig |1
arch/csky/include/asm/fixmap.h |4 +-
arch/csky/include/asm/highmem.h |6 ++-
arch/csky/m
On Tue, Oct 13, 2020 at 3:47 PM Alexander Kapshuk
wrote:
>
> This oops manifests itself on the following hardware:
> 01:00.0 VGA compatible controller: NVIDIA Corporation G98M [GeForce G 103M]
> (rev a1)
>
> Oct 09 14:17:46 lp-sasha kernel: BUG: kernel NULL pointer dereference,
> address: 00
Adopt the map ordering to match the other architectures and the generic
code. Also make the maximum entries limited and not dependend on the number
of CPUs. With the original implementation did the following calculation:
nr_slots = mapsize >> PAGE_SHIFT;
The results in either 512 or 1024 total
No reason having the same code in every architecture
Signed-off-by: Thomas Gleixner
Cc: Thomas Bogendoerfer
Cc: linux-m...@vger.kernel.org
---
V3: Remove the kmap types cruft
---
arch/mips/Kconfig |1
arch/mips/include/asm/fixmap.h |4 -
arch/mips/include/asm/highm
No more users.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
include/linux/highmem-internal.h | 12
1 file changed, 12 deletions(-)
--- a/include/linux/highmem-internal.h
+++ b/include/linux/highmem-internal.h
@@ -99,13 +99,6 @@ static inline void *kmap_atomic(struct p
Hi Chanwoo and Sylwester,
On 11/3/20 09:54, Chanwoo Choi wrote:
> Hi Sylwester,
>
> When I tested this patchset on Odroid-U3,
> After setting 0 bps by interconnect[1][2],
> the frequency of devfreq devs sustain the high frequency
> according to the pm qos request.
>
> So, I try to find the cause
There is no reason to disable pagefaults and preemption as a side effect of
kmap_atomic_prot().
Use kmap_local_page_prot() instead and document the reasoning for the
mapping usage with the given pgprot.
Remove the NULL pointer check for the map. These functions return a valid
address for valid pa
At dp_pm_resume, reinitialize both dp host controller and hpd block
so that hpd connection can be detected at realtime by reading hpd state
status register. Also hpd plug interrupt can be generated accordingly.
Changes in v2:
-- use container_of to cast correct dp_display_private pointer
at bot
No reason having the same code in every architecture
Signed-off-by: Thomas Gleixner
Cc: "David S. Miller"
Cc: sparcli...@vger.kernel.org
---
V3: Remove the kmap types cruft
---
arch/sparc/Kconfig |1
arch/sparc/include/asm/highmem.h|8 +-
arch/sparc/include/asm/kma
Hi Christoph,
On Tue, Nov 03, 2020 at 10:55:38AM +0100, Christoph Hellwig wrote:
> Linux 5.10-rc1 switched from having a single dma offset in struct device
> to a set of DMA ranges, and introduced a new helper to set them,
> dma_direct_set_offset.
>
> This in fact surfaced that a bunch of drivers
Hi Ville,
On Mon, Nov 02, 2020 at 06:04:06PM +0200, Ville Syrjälä wrote:
> On Mon, Nov 02, 2020 at 02:38:33PM +0100, Maxime Ripard wrote:
> > Many drivers reference the crtc->pointer in order to get the current CRTC
> > state in their atomic_begin or atomic_flush hooks, which would be the new
> >
On Mon, Nov 02, 2020 at 06:06:30PM +0200, Ville Syrjälä wrote:
> On Mon, Nov 02, 2020 at 02:38:32PM +0100, Maxime Ripard wrote:
> > dispnv50 references the crtc->state pointer in order to get the current
> > CRTC state in its atomic_check hook, which would be the old CRTC state in
> > the global at
kmap_types.h is a misnomer because the old atomic MAP based array does not
exist anymore and the whole indirection of architectures including
kmap_types.h is inconinstent and does not allow to provide guard page
debugging for this misfeature.
Add a common header file which defines the mapping stac
On Tue, Nov 03, 2020 at 04:56:16PM +0200, Sakari Ailus wrote:
> On Tue, Nov 03, 2020 at 04:47:47PM +0200, Andy Shevchenko wrote:
> > On Tue, Nov 03, 2020 at 03:34:00PM +0200, Sakari Ailus wrote:
> > > Add a printk modifier %p4cc (for pixel format) for printing V4L2 and DRM
> > > pixel formats denot
Now that the kmap atomic index is stored in task struct provide a
preemptible variant. On context switch the maps of an outgoing task are
removed and the map of the incoming task are restored. That's obviously
slow, but highmem is slow anyway.
The kmap_local.*() functions can be invoked from both
There is no reason to disable pagefaults and preemption as a side effect of
kmap_atomic_prot().
Use kmap_local_page_prot() instead and document the reasoning for the
mapping usage with the given pgprot.
Remove the NULL pointer check for the map. These functions return a valid
address for valid pa
Some dongles require link training done at irq_hpd request instead
of plugin request. This patch promote irq_hpd handler to handle link
training and setup hpd_state correctly.
Fixes: fdaf9a5e3c15 (drm/msm/dp: fixes wrong connection state caused by
failure of link training)
Signed-off-by: Kuogee
Nothing in modules can use that.
Signed-off-by: Thomas Gleixner
Reviewed-by: Christoph Hellwig
Cc: Andrew Morton
Cc: linux...@kvack.org
---
mm/highmem.c |2 --
1 file changed, 2 deletions(-)
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -108,8 +108,6 @@ static inline wait_queue_head_t *get_pkm
No more users.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
include/linux/highmem-internal.h | 14 ++
1 file changed, 2 insertions(+), 12 deletions(-)
--- a/include/linux/highmem-internal.h
+++ b/include/linux/highmem-internal.h
@@ -87,16 +87,11 @@ static inline void __kun
DP compo phy have to be enable to start link training. When
link training failed phy need to be disabled so that next
link traning can be proceed smoothly at next plug in. This
patch de-initialize mainlink to disable phy if link training
failed. This prevent system crash due to
disp_cc_mdss_dp_link
On 03-11-20, 08:50, Rob Clark wrote:
> sorry, it didn't apply cleanly (which I guess is due to some other
> dependencies that need to be picked back to v5.4 product kernel), and
> due to some other things I'm in middle of debugging I didn't have time
> yet to switch to v5.10-rc or look at what else
For whatever reasons SH has highmem bits all over the place but does
not enable it via Kconfig. Remove the bitrot.
Signed-off-by: Thomas Gleixner
---
arch/sh/include/asm/fixmap.h |8
arch/sh/include/asm/kmap_types.h | 15 ---
arch/sh/mm/init.c|8
On 2020-11-02 11:29, Stephen Boyd wrote:
Subject has a typo in "training".
Quoting Kuogee Hsieh (2020-10-30 16:23:24)
Some dongles, such as Apple, required link training done at irq_hpd
s/required/require/
request instead of plugin request. This patch promote irq_hpd hanlder
s/hanlder/han
The mapping code is odd and looks broken. See FIXME in the comment.
Also fix the harmless off by one in the FIX_KMAP_END define.
Signed-off-by: Thomas Gleixner
Cc: Nick Hu
Cc: Greentime Hu
Cc: Vincent Chen
---
V3: Remove the kmap types cruft
---
arch/nds32/Kconfig.cpu |1
arch
No reason having the same code in every architecture.
Signed-off-by: Thomas Gleixner
Cc: Michal Simek
---
V3: Remove the kmap types cruft
---
arch/microblaze/Kconfig |1
arch/microblaze/include/asm/fixmap.h |4 -
arch/microblaze/include/asm/highmem.h |6 ++
arch/micr
Instead of storing the map per CPU provide and use per task storage. That
prepares for local kmaps which are preemptible.
The context switch code is preparatory and not yet in use because
kmap_atomic() runs with preemption disabled. Will be made usable in the
next step.
The context switch logic i
Switch the atomic iomap implementation over to kmap_local and stick the
preempt/pagefault mechanics into the generic code similar to the
kmap_atomic variants.
Rename the x86 map function in preparation for a non-atomic variant.
Signed-off-by: Thomas Gleixner
---
V2: New patch to make review easi
Instead of storing the map per CPU provide and use per task storage. That
prepares for local kmaps which are preemptible.
The context switch code is preparatory and not yet in use because
kmap_atomic() runs with preemption disabled. Will be made usable in the
next step.
The context switch logic i
Some dongle require link training be done at irq_hpd request. This serial
patches address the issues so that DP/HDMI display can be lit up properlly.
This serial Patch also fixes clock stuck at "off" state error caused by
previous link training failed.
Kuogee Hsieh (3):
drm/msm/dp: deinitialize
From: Stephen Boyd
During suspend, dp host controller and hpd block are disabled due to
both ahb and aux clock are disabled. Therefore hpd plug/unplug interrupts
will not be generated. At dp_pm_resume(), reinitialize both dp host
controller and hpd block so that hpd plug/unplug interrupts will be
Move the gory details of kmap & al into a private header and only document
the interfaces which are usable by drivers.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
include/linux/highmem-internal.h | 174 +
include/linux/highmem.h | 270 ++---
Convert X86 to the generic kmap atomic implementation and make the
iomap_atomic() naming convention consistent while at it.
Signed-off-by: Thomas Gleixner
Cc: x...@kernel.org
---
V3: Remove the kmap_types cruft
---
arch/x86/Kconfig |3 +
arch/x86/include/asm/fixmap.h
There is no requirement to disable pagefaults and preemption for these
cache management mappings.
Replace kmap_atomic_pfn() with kmap_local_pfn(). This allows to remove
kmap_atomic_pfn() in the next step.
Signed-off-by: Thomas Gleixner
Cc: Russell King
Cc: linux-arm-ker...@lists.infradead.org
-
Hi!
On Tue, Nov 03, 2020 at 11:55:08AM +0100, Daniel Vetter wrote:
> On Tue, Nov 03, 2020 at 11:38:32AM +0100, Maxime Ripard wrote:
> > On Tue, Nov 03, 2020 at 11:10:27AM +0100, Thomas Zimmermann wrote:
> > > Hi
> > >
> > > Am 03.11.20 um 10:52 schrieb Maxime Ripard:
> > > > On Tue, Nov 03, 2020
Connection state is not set correctly happen when either failure of link
train due to cable unplugged in the middle of aux channel reading or
cable plugged in while in suspended state. This patch fixes these problems.
This patch also replace ST_SUSPEND_PENDING with ST_DISPLAY_OFF.
Changes in V2:
-
Replace kmap_atomic_pfn() with kmap_local_pfn() which is preemptible and
can take page faults.
Remove the indirection of the dump page and the related cruft which is not
longer required.
Signed-off-by: Thomas Gleixner
Cc: Thomas Bogendoerfer
Cc: linux-m...@vger.kernel.org
---
V3: New patch
---
Replace kmap_atomic_pfn() with kmap_local_pfn() which is preemptible and
can take page faults.
Remove the indirection of the dump page and the related cruft which is not
longer required.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
arch/x86/kernel/crash_dump_32.c | 48
Neither fbmem_peek() nor fbmem_poke() require to disable pagefaults and
preemption as a side effect of io_mapping_map_atomic_wc().
Use io_mapping_map_local_wc() instead.
Signed-off-by: Thomas Gleixner
Cc: Ben Skeggs
Cc: David Airlie
Cc: Daniel Vetter
Cc: dri-devel@lists.freedesktop.org
Cc: no
On Tue, Nov 03 2020 at 10:27, Thomas Gleixner wrote:
> +struct kmap_ctrl {
> +#ifdef CONFIG_KMAP_LOCAL
> + int idx;
> + pte_t pteval[KM_TYPE_NR];
I'm a moron. Fixed it on the test machine ...
Hi Daniel,
Le mar. 3 nov. 2020 à 11:17, Daniel Vetter a écrit :
On Mon, Nov 02, 2020 at 10:06:51PM +, Paul Cercueil wrote:
With the module parameter ingenic-drm.cached_gem_buffers, it is
possible
to specify that we want GEM buffers backed by non-coherent memory.
This dramatically spee
The kmap_atomic* interfaces in all architectures are pretty much the same
except for post map operations (flush) and pre- and post unmap operations.
Provide a generic variant for that.
Signed-off-by: Thomas Gleixner
Cc: Andrew Morton
Cc: linux...@kvack.org
---
V3: Do not reuse the kmap_atomic_i
On Tue, Nov 03, 2020 at 11:10:27AM +0100, Thomas Zimmermann wrote:
> Hi
>
> Am 03.11.20 um 10:52 schrieb Maxime Ripard:
> > On Tue, Nov 03, 2020 at 10:10:41AM +0800, Tian Tao wrote:
> >> Add new api devm_drm_irq_install() to register interrupts,
> >> no need to call drm_irq_uninstall() when the dr
For some obscure reason when CONFIG_DEBUG_HIGHMEM is enabled the stack
depth is increased from 20 to 41. But the only thing DEBUG_HIGHMEM does is
to enable a few BUG_ON()'s in the mapping code.
That's a leftover from the historical mapping code which had fixed entries
for various purposes. DEBUG_H
On Tue, Nov 03, 2020 at 10:10:41AM +0800, Tian Tao wrote:
> Add new api devm_drm_irq_install() to register interrupts,
> no need to call drm_irq_uninstall() when the drm module is removed.
>
> v2:
> fixed the wrong parameter.
>
> Signed-off-by: Tian Tao
> ---
> drivers/gpu/drm/drm_drv.c | 23 ++
The header is not longer used and on alpha, ia64, openrisc, parisc and um
it was completely unused anyway as these architectures have no highmem
support.
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
arch/alpha/include/asm/kmap_types.h | 15 ---
arch/ia64/include/asm/kmap_t
Cherry-pick two missed drm/msm/dp related patches to msm-next-staging
Kuogee Hsieh (2):
drm/msm/dp: return correct connection status after suspend
drm/msm/dp: fixes wrong connection state caused by failure of link
train
drivers/gpu/drm/msm/dp/dp_catalog.c | 13 +++
drivers/gpu/drm/msm/d
No reason having the same code in every architecture.
Signed-off-by: Thomas Gleixner
Cc: Russell King
Cc: Arnd Bergmann
Cc: linux-arm-ker...@lists.infradead.org
---
V3: Remove the kmap types cruft
---
arch/arm/Kconfig |1
arch/arm/include/asm/fixmap.h |4 -
arch/a
No reason having the same code in every architecture
Signed-off-by: Thomas Gleixner
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linuxppc-...@lists.ozlabs.org
---
V3: Remove the kmap types cruft
---
arch/powerpc/Kconfig |1
arch/powerpc/include/
None of these mapping requires the side effect of disabling pagefaults and
preemption.
Use io_mapping_map_local_wc() instead, rename the related functions
accordingly and clean up qxl_process_single_command() to use a plain
copy_from_user() as the local maps are not disabling pagefaults.
Signed-o
On Tue, Nov 03 2020 at 09:48, Linus Torvalds wrote:
> I have no complaints about the patch, but it strikes me that if people
> want to actually have much better debug coverage, this is where it
> should be (I like the "every other address" thing too, don't get me
> wrong).
>
> In particular, instea
Hi Christoph,
Le mar. 3 nov. 2020 à 18:50, Christoph Hellwig a
écrit :
On Mon, Nov 02, 2020 at 10:06:49PM +, Paul Cercueil wrote:
This function can be used by drivers that need to mmap dumb buffers
created with non-coherent backing memory.
Signed-off-by: Paul Cercueil
---
drivers/
During suspend, dp host controller and hpd block are disabled due to
both ahb and aux clock are disabled. Therefore hpd plug/unplug interrupts
will not be generated. At dp_pm_resume(), reinitialize both dp host
controller and hpd block so that hpd plug/unplug interrupts will be
generated and handle
Hi Sylwester,
Thank you for refreshing the patchset!
On 10/30/20 14:51, Sylwester Nawrocki wrote:
> This patch adds a generic interconnect driver for Exynos SoCs in order
> to provide interconnect functionality for each "samsung,exynos-bus"
> compatible device.
>
> The SoC topology is a graph (o
Connection state is not set correctly happen when either failure of link
train due to cable unplugged in the middle of aux channel reading or
cable plugged in while in suspended state. This patch fixes these problems.
This patch also replace ST_SUSPEND_PENDING with ST_DISPLAY_OFF.
Changes in V2:
-
All users gone.
Signed-off-by: Thomas Gleixner
---
include/linux/highmem.h | 63 +++-
mm/highmem.c|7 -
2 files changed, 5 insertions(+), 65 deletions(-)
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -86,31 +86,1
On Tue, Nov 03, 2020 at 10:27:15AM +0100, Thomas Gleixner wrote:
> Historical leftovers from the time where kmap() had fixed slots.
>
> Signed-off-by: Thomas Gleixner
> Cc: Alexander Viro
> Cc: Benjamin LaHaise
> Cc: linux-fsde...@vger.kernel.org
> Cc: linux-...@kvack.org
> Cc: Chris Mason
> C
On Mon, Nov 02, 2020 at 04:53:07PM +0100, Paul Kocialkowski wrote:
> Introduces a driver for the LogiCVC display controller, a programmable
> logic controller optimized for use in Xilinx Zynq-7000 SoCs and other
> Xilinx FPGAs. The controller is mostly configured at logic synthesis
> time so only a
Some simple panels have dual LVDS interfaces which receive even and odd
pixels respectively, like 'nlt,nl192108ac18-02d' and 'koe,tx26d202vm0bwa'.
So, let's allow optional 'ports' property so that pixel order can be got
via drm_of_lvds_get_dual_link_pixel_order() if it's child nodes 'port@0'
and 'p
On Wed 28 Oct 09:23 CDT 2020, Mauro Carvalho Chehab wrote:
[..]
> .../ABI/testing/sysfs-class-remoteproc| 14 +-
for this:
Acked-by: Bjorn Andersson
Thanks,
Bjorn
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freede
Nothing uses totalhigh_pages_dec() and totalhigh_pages_set().
Signed-off-by: Thomas Gleixner
---
V3: New patch
---
include/linux/highmem.h | 10 --
1 file changed, 10 deletions(-)
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -104,21 +104,11 @@ static inline void tota
Historical leftovers from the time where kmap() had fixed slots.
Signed-off-by: Thomas Gleixner
Cc: Alexander Viro
Cc: Benjamin LaHaise
Cc: linux-fsde...@vger.kernel.org
Cc: linux-...@kvack.org
Cc: Chris Mason
Cc: Josef Bacik
Cc: David Sterba
Cc: linux-bt...@vger.kernel.org
---
fs/aio.c
Some dongle will not clear LINK_STATUS_UPDATED bit after
DPCD read which cause link training failed. This patch
just read 6 bytes of DPCD link status from sink and return
without checking LINK_STATUS_UPDATED bit.
Only 8 bits are used to represent link rate at sinker DPCD.
The really link rate is 2.
Similar to kmap local provide a iomap local variant which only disables
migration, but neither disables pagefaults nor preemption.
Signed-off-by: Thomas Gleixner
---
V3: Restrict migrate disable to the 32bit mapping case and update documentation.
V2: Split out from the large combo patch and add
On 2020-11-02 12:59, Stephen Boyd wrote:
Quoting Kuogee Hsieh (2020-10-30 16:22:53)
DP compo phy have to be enable to start link training. When
link training failed phy need to be disabled so that next
link trainng can be proceed smoothly at next plug in. This
s/trainng/training/
patch de in
On Mon, Nov 02, 2020 at 06:06:04PM +0200, Ville Syrjälä wrote:
> On Mon, Nov 02, 2020 at 02:38:34PM +0100, Maxime Ripard wrote:
> > Now that atomic_check takes the global atomic state as a parameter, we
> > don't need to go through the pointer in the CRTC state.
> >
> > This was done using the fol
On Tue, Nov 3, 2020 at 11:09 PM Dan Williams wrote:
> On Tue, Nov 3, 2020 at 1:28 PM Bjorn Helgaas wrote:
> > On Fri, Oct 30, 2020 at 11:08:11AM +0100, Daniel Vetter wrote:
> > > There's three ways to access PCI BARs from userspace: /dev/mem, sysfs
> > > files, and the old proc interface. Two che
Deferred probe is an expected return value for tegra_output_probe().
Given that the driver deals with it properly, there's no need to output
a warning that may potentially confuse users.
Signed-off-by: Jon Hunter
---
Changes since V1:
- This time, I actually validated it!
drivers/gpu/drm/tegra
On Tue, Nov 03, 2020 at 11:49:40AM -0500, Alex Deucher wrote:
> On Sun, Nov 1, 2020 at 5:01 AM Daniel Vetter wrote:
> >
> > On Sat, Oct 31, 2020 at 2:57 PM Daniel Vetter
> > wrote:
> > >
> > > On Fri, Oct 30, 2020 at 7:47 PM Alex Deucher
> > > wrote:
> > > >
> > > > On Fri, Oct 30, 2020 at 6:1
On Tue, Nov 03, 2020 at 12:25:22PM +0100, Maxime Ripard wrote:
> Hi!
>
> On Tue, Nov 03, 2020 at 11:55:08AM +0100, Daniel Vetter wrote:
> > On Tue, Nov 03, 2020 at 11:38:32AM +0100, Maxime Ripard wrote:
> > > On Tue, Nov 03, 2020 at 11:10:27AM +0100, Thomas Zimmermann wrote:
> > > > Hi
> > > >
>
On Tue, Nov 03, 2020 at 04:54:50PM -0500, Alex Deucher wrote:
> Use the per device drm driver feature flags rather than the
> global one. This way we can make the drm driver struct const.
>
> Signed-off-by: Alex Deucher
Reviewed-by: Daniel Vetter
Can we merge this through drm-misc-next so I c
On Tue, Nov 03, 2020 at 10:11:27PM -0500, Luben Tuikov wrote:
> Hi Daniel,
>
> These two patches follow up your latest
> DRM work to make definitions of struct drm_driver
> in DRM low-level drivers, constant, in amdgpu.
>
> This set doesn't descend from my previous patch
> "drm/amdgpu: Convert to
On Tue, Nov 03, 2020 at 10:11:29PM -0500, Luben Tuikov wrote:
> Make the definition of struct drm_driver
> a constant, to follow the latest developments
> in the DRM layer.
>
> Signed-off-by: Luben Tuikov
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 32 +
> drivers/g
With only the kms driver left, we can fold this in. This means
we need to move the ioctl table, which means one additional ioctl
must be defined in headers.
Also there's a conflict between the radeon_init macro and the module
init function, so rename the module functions to avoid that.
Reviewed-b
Only the following drivers aren't converted:
- amdgpu, because of the driver_feature mangling due to virt support.
Subsequent patch will address this.
- nouveau, because DRIVER_ATOMIC uapi is still not the default on the
platforms where it's supported (i.e. again driver_feature mangling)
- vc4,
It's nice if a big function/ioctl table like this is const. Only
downside here is that we need a few more #ifdef to paper over the
differences when CONFIG_DRM_LEGACY is enabled. Maybe provides more
motivation to sunset that horror show :-)
v2:
- Fix super important checkpatch warning (Sam)
- Updat
This means some very few #ifdef in code, but it allows us to
enlist the compiler to make sure this stuff isn't used anymore.
More important, only legacy drivers change drm_device (for the
legacy_dev_list shadow attach management), therefore this is
prep to allow modern drivers to have a const driv
From: Alex Deucher
Use the per device drm driver feature flags rather than the
global one. This way we can make the drm driver struct const.
Signed-off-by: Alex Deucher
Reviewed-by: Luben Tuikov
Signed-off-by: Daniel Vetter
---
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 +++-
1 file chang
From: Luben Tuikov
Make the definition of struct drm_driver
a constant, to follow the latest developments
in the DRM layer.
Signed-off-by: Luben Tuikov
[danvet: Rebase onto devm_drm_dev_alloc patch and drop the freesync
ioctl line again that escaped from internal trees.]
Signed-off-by: Daniel V
On 2020-11-04 08:14, Maxime Ripard wrote:
Hi Christoph,
On Tue, Nov 03, 2020 at 10:55:38AM +0100, Christoph Hellwig wrote:
Linux 5.10-rc1 switched from having a single dma offset in struct device
to a set of DMA ranges, and introduced a new helper to set them,
dma_direct_set_offset.
This in fa
From: Artur Świgoń
This patch adds an 'interconnects' property to Exynos4412 DTS in order to
declare the interconnect path used by the mixer. Please note that the
'interconnect-names' property is not needed when there is only one path in
'interconnects', in which case calling of_icc_get() with a
This patch adds a generic interconnect driver for Exynos SoCs in order
to provide interconnect functionality for each "samsung,exynos-bus"
compatible device.
The SoC topology is a graph (or more specifically, a tree) and its
edges are described by specifying in the 'interconnects' property
the int
Add documentation for new optional properties in the exynos bus nodes:
interconnects, #interconnect-cells, samsung,data-clock-ratio.
These properties allow to specify the SoC interconnect structure which
then allows the interconnect consumer devices to request specific
bandwidth requirements.
Sign
This patch adds the following properties for Exynos4412 interconnect
bus nodes:
- interconnects: to declare connections between nodes in order to
guarantee PM QoS requirements between nodes,
- #interconnect-cells: required by the interconnect framework,
- samsung,data-clk-ratio: which allows
This patchset adds interconnect API support for the Exynos SoC "samsung,
exynos-bus" compatible devices, which already have their corresponding
exynos-bus driver in the devfreq subsystem. Complementing the devfreq
driver with an interconnect functionality allows to ensure the QoS
requirements of d
This patch adds interconnect support to exynos-mixer. The mixer works
the same as before when CONFIG_INTERCONNECT is 'n'.
For proper operation of the video mixer block we need to ensure the
interconnect busses like DMC or LEFTBUS provide enough bandwidth so
as to avoid DMA buffer underruns in the
This patch adds registration of a child platform device for the exynos
interconnect driver. It is assumed that the interconnect provider will
only be needed when #interconnect-cells property is present in the bus
DT node, hence the child device will be created only when such a property
is present.
Add maintainers entry for the Samsung interconnect drivers, this currently
includes Exynos SoC generic interconnect driver.
Signed-off-by: Sylwester Nawrocki
---
Changes since v7:
- new patch.
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
i
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