Hi Marek,
Thank you for the patch.
On Sun, Feb 20, 2022 at 05:07:18AM +0100, Marek Vasut wrote:
> The Innolux G070Y2-L01 supports two modes of operation:
> 1) FRC=Low/NC ... MEDIA_BUS_FMT_RGB666_1X7X3_SPWG ... BPP=6
> 2) FRC=High . MEDIA_BUS_FMT_RGB888_1X7X4_SPWG ... BPP=8
>
> Currently the
On Thu, Feb 17, 2022 at 09:42:08AM +0100, Thomas Zimmermann wrote:
Hi
Am 16.02.22 um 18:41 schrieb Lucas De Marchi:
First the simplest ones:
- iosys_map_memset(): when abstracting system and I/O memory,
just like the memcpy() use case, memset() also has dedicated
fu
The Innolux G070Y2-L01 supports two modes of operation:
1) FRC=Low/NC ... MEDIA_BUS_FMT_RGB666_1X7X3_SPWG ... BPP=6
2) FRC=High . MEDIA_BUS_FMT_RGB888_1X7X4_SPWG ... BPP=8
Currently the panel description mixes both, BPP from 1) and bus
format from 2), which triggers a warning at panel-simple.c
This iterator relies on drm_mm_first_hole() and drm_mm_next_hole()
functions to identify suitable holes for an allocation of a given
size by efficiently traversing the rbtree associated with the given
allocator.
It replaces the for loop in drm_mm_insert_node_in_range() and can
also be used by drm
The first patch is a drm core patch that replaces the for loop in
drm_mm_insert_node_in_range() with the iterator and would not
cause any functional changes. The second patch is a i915 driver
specific patch that also uses the iterator but solves a different
problem.
v2:
- Added a new patch to this
On platforms capable of allowing 8K (7680 x 4320) modes, pinning 2 or
more framebuffers/scanout buffers results in only one that is mappable/
fenceable. Therefore, pageflipping between these 2 FBs where only one
is mappable/fenceable creates latencies large enough to miss alternate
vblanks thereby
While looking for next holes suitable for an allocation, although,
it is highly unlikely, make sure that the DECLARE_NEXT_HOLE_ADDR
macro is using a valid node before it extracts the rb_node from it.
Cc: Tvrtko Ursulin
Cc: Christian König
Signed-off-by: Vivek Kasireddy
---
drivers/gpu/drm/drm_
Hi Noralf,
On Fri, Feb 18, 2022 at 04:11:10PM +0100, Noralf Trønnes wrote:
> Add a driver that will work with most MIPI DBI compatible SPI panels.
> This avoids adding a driver for every new MIPI DBI compatible controller
> that is to be used by Linux. The 'compatible' Device Tree property with
> a
From: Rob Clark
Someone on IRC once asked an innocent enough sounding question: Why
with xf86-video-modesetting is es2gears limited at 120fps.
So I broke out the perfetto tracing mesa MR and took a look. It turns
out the problem was drm_atomic_helper_dirtyfb(), which would end up
waiting for v
19.02.2022 21:49, Dmitry Osipenko пишет:
> 18.02.2022 14:39, Mikko Perttunen пишет:
>> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
>> +{
>> +struct vic *vic = to_vic(client);
>> +int err;
>> +
>> +err = vic_load_firmware(vic);
>
> You can't invoke vic_load_firm
18.02.2022 14:39, Mikko Perttunen пишет:
> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
> +{
> + struct vic *vic = to_vic(client);
> + int err;
> +
> + err = vic_load_firmware(vic);
You can't invoke vic_load_firmware() while RPM is suspended. Either
replace this
On Sat, Feb 19, 2022 at 10:32 AM Rob Clark wrote:
>
> From: Rob Clark
>
> Avoid going down devfreq paths on devices where devfreq is not
> initialized.
>
> Reported-by: Linux Kernel Functional Testing
> Reported-by: Anders Roxell
forgot to add:
Fixes: 6aa89ae1fb04 ("drm/msm/gpu: Cancel idle/b
18.02.2022 14:39, Mikko Perttunen пишет:
> + if (context->memory_context &&
> context->client->ops->get_streamid_offset) {
^^^
> + int offset =
> context->client->ops->get_streamid_offset(context->client);
> +
> + if (offset >= 0) {
> +
From: Rob Clark
Avoid going down devfreq paths on devices where devfreq is not
initialized.
Reported-by: Linux Kernel Functional Testing
Reported-by: Anders Roxell
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/msm_gpu_devfreq.c | 31 +--
1 file changed, 25 insertio
19.02.2022 20:54, Dmitry Osipenko пишет:
> 18.02.2022 14:39, Mikko Perttunen пишет:
>> +config TEGRA_HOST1X_CONTEXT_BUS
>> +bool
>> +
>> config TEGRA_HOST1X
>> tristate "NVIDIA Tegra host1x driver"
>> depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
>> select DMA_SHARED_BUFFER
>>
18.02.2022 14:39, Mikko Perttunen пишет:
> +config TEGRA_HOST1X_CONTEXT_BUS
> + bool
> +
> config TEGRA_HOST1X
> tristate "NVIDIA Tegra host1x driver"
> depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
> select DMA_SHARED_BUFFER
> + select TEGRA_HOST1X_CONTEXT_BUS
What is
18.02.2022 14:39, Mikko Perttunen пишет:
> + for (index = 0; index < cdl->len; index++) {
> + struct iommu_fwspec *fwspec;
> +
> + ctx = &cdl->devs[index];
> +
> + ctx->host = host1x;
> +
> + device_initialize(&ctx->dev);
> +
> + ctx->
18.02.2022 14:39, Mikko Perttunen пишет:
...
> +/*
> + * Due to an issue with T194 NVENC, only 38 bits can be used.
> + * Anyway, 256GiB of IOVA ought to be enough for anyone.
> + */
> +static dma_addr_t context_device_dma_mask = DMA_BIT_MASK(38);
s/dma_addr_t/u64/ ? Apparently you should get comp
From: Rob Clark
With native userspace drivers in guest, a lot of GEM objects need to be
neither shared nor mappable. And in fact making everything mappable
and/or sharable results in unreasonably high fd usage in host VMM.
Signed-off-by: Rob Clark
---
This is for a thing I'm working on, a new
On Sat, 2022-02-19 at 16:00 +0800, David Gow wrote:
> On Fri, Feb 18, 2022 at 8:26 PM Johannes Berg
> wrote:
> >
> > On Fri, 2022-02-18 at 15:57 +0800, David Gow wrote:
> > >
> > > Note that, while this does build again, it still segfaults on startup,
> > > so more work remains to be done.
> >
Hi Noralf,
On Fri, Feb 18, 2022 at 04:11:09PM +0100, Noralf Trønnes wrote:
> devm_drm_dev_alloc() can't allocate structures that embed a structure
> which then again embeds drm_device. Workaround this by adding a
> driver_private pointer to struct mipi_dbi_dev which the driver can use for
> its add
Hi Noralf,
On Fri, Feb 18, 2022 at 04:11:08PM +0100, Noralf Trønnes wrote:
> Add binding for MIPI DBI compatible SPI panels.
>
> v4:
> - There should only be two compatible (Maxime)
> - s/panel-dbi-spi/panel-mipi-dbi-spi/in compatible
>
> v3:
> - Move properties to Device Tree (Maxime)
> - Use c
17.02.2022 11:29, Sascha Hauer пишет:
> From: Douglas Anderson
>
> Jitter was improved by lowering the MPLL bandwidth to account for high
> frequency noise in the rk3288 PLL. In each case MPLL bandwidth was
> lowered only enough to get us a comfortable margin. We believe that
> lowering the ban
17.02.2022 11:29, Sascha Hauer пишет:
> The RK3568 has HDMI_TX_AVDD0V9 and HDMI_TX_AVDD_1V8 supply inputs needed
> for the HDMI port. add support for these to the driver for boards which
> have them supplied by switchable regulators.
>
> Signed-off-by: Sascha Hauer
> ---
> drivers/gpu/drm/rock
17.02.2022 11:29, Sascha Hauer пишет:
> @@ -28,6 +28,12 @@ config ROCKCHIP_VOP
> This selects support for the VOP driver. You should enable it
> on all older SoCs up to RK3399.
>
> +config ROCKCHIP_VOP2
> + bool "Rockchip VOP2 driver"
> + help
> + This selects suppor
There is a case where all maps used for a type of wait/event is so large
in size. For instance, struct page can be a type for (un)lock_page().
The additional memory size for the maps would be 'the # of pages *
sizeof(struct dept_map)' if each struct page keeps its map all the way,
which might be to
Dept should work independently from Lockdep. However, there's no choise
but to rely on Lockdep code and its instances for now.
Signed-off-by: Byungchul Park
---
include/linux/lockdep.h | 71 ---
include/linux/lockdep_types.h | 3 ++
kernel/locking/l
Makes Dept able to track dependencies by rwsem.
Signed-off-by: Byungchul Park
---
include/linux/lockdep.h | 24
include/linux/percpu-rwsem.h | 10 +-
include/linux/rwsem.h| 31 +++
3 files changed, 60 insertions(+), 5 dele
Makes SDT able to track dependencies by swait.
Signed-off-by: Byungchul Park
---
include/linux/swait.h | 4
kernel/sched/swait.c | 10 ++
2 files changed, 14 insertions(+)
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 6a8c22b..dbdf2ce 100644
--- a/include/linux
llist_head and llist_node can be used by very primitives. For example,
Dept for tracking dependency uses llist things in its header. To avoid
header dependency, move those to types.h.
Signed-off-by: Byungchul Park
---
include/linux/llist.h | 8
include/linux/types.h | 8
2 file
17.02.2022 18:00, Sascha Hauer пишет:
> On Thu, Feb 17, 2022 at 03:35:08PM +0300, Dmitry Osipenko wrote:
>> 17.02.2022 11:29, Sascha Hauer пишет:
>>> The rk3568 HDMI has an additional clock that needs to be enabled for the
>>> HDMI controller to work. The purpose of that clock is not clear. It is
>
It'd be useful to show Dept internal stats and dependency graph on
runtime via proc for better information. Introduced the knobs.
Signed-off-by: Byungchul Park
---
kernel/dependency/Makefile| 1 +
kernel/dependency/dept.c | 24 --
kernel/dependency/dept_internal.h | 26
CURRENT STATUS
--
Lockdep tracks acquisition order of locks in order to detect deadlock,
and IRQ and IRQ enable/disable state as well to take accident
acquisitions into account.
Lockdep should be turned off once it detects and reports a deadlock
since the data structure and algorithm a
On Thu, Feb 17, 2022 at 10:51:09AM -0500, Theodore Ts'o wrote:
> On Thu, Feb 17, 2022 at 07:57:36PM +0900, Byungchul Park wrote:
> >
> > I've got several reports from the tool. Some of them look like false
> > alarms and some others look like real deadlock possibility. Because of
> > my unfamiliar
Makes Dept able to track dependencies by rwlock.
Signed-off-by: Byungchul Park
---
include/linux/lockdep.h| 25 +-
include/linux/rwlock.h | 48 ++
include/linux/rwlock_api_smp.h | 8 +++
include/linux/rwlock_types.h
On Wed, Feb 16, 2022 at 01:33:18PM -0500, Steven Rostedt wrote:
> On Wed, 16 Feb 2022 10:09:14 -0800
> Linus Torvalds wrote:
>
> > Byungchul, could you fix those two issues? Some of your reports may
> > well be entirely valid, but the hard-to-read hex offsets and the
> > knowledge that at least s
On Wed, Feb 16, 2022 at 04:33:41AM +, Matthew Wilcox wrote:
> On Wed, Feb 16, 2022 at 01:17:03PM +0900, Byungchul Park wrote:
> > [7.013330] ===
> > [7.013331] DEPT: Circular dependency has been detected.
> > [7.013332] 5.17.0-rc1-0001
On 23/01/2022 18:52, Uwe Kleine-König wrote:
> The value returned by an spi driver's remove function is mostly ignored.
> (Only an error message is printed if the value is non-zero that the
> error is ignored.)
>
> So change the prototype of the remove function to return no value. This
> way drive
[9.008161] ===
[9.008163] DEPT: Circular dependency has been detected.
[9.008164] 5.17.0-rc1-00015-gb94f67143867-dirty #2 Tainted: GW
[9.008166] ---
[9.008167] summary
[9.
Hi Linus and folks,
I've been developing a tool for detecting deadlock possibilities by
tracking wait/event rather than lock(?) acquisition order to try to
cover all synchonization machanisms. It's done on v5.17-rc1 tag.
https://github.com/lgebyungchulpark/linux-dept/commits/dept1.12_on_v5.17-rc1
17.02.2022 11:29, Sascha Hauer пишет:
> + hdmi->ref_clk = devm_clk_get(hdmi->dev, "ref");
> + if (PTR_ERR(hdmi->ref_clk) == -ENOENT)
> + hdmi->ref_clk = devm_clk_get(hdmi->dev, "vpll");
> +
> + if (PTR_ERR(hdmi->ref_clk) == -ENOENT) {
> + hdmi->ref_clk = NULL;
I
It enters kernel mode on each syscall and each syscall handling should
be considered independently from the point of view of Dept. Otherwise,
Dept may wrongly track dependencies across different syscalls.
That might be a real dependency from user mode. However, now that Dept
just started to work,
On Thu, Feb 17, 2022 at 12:36:56PM -0500, Steven Rostedt wrote:
> > +struct dept_ecxt;
> > +struct dept_iecxt {
> > + struct dept_ecxt *ecxt;
> > + int enirq;
> > + bool staled; /* for preventing to add a new ecxt */
> > +};
> > +
> > +struct dept_wait;
> > +struct dept_iwait {
> > + struct
Makes Dept able to track dependencies by PG_{locked,writeback}. For
instance, (un)lock_page() generates that type of dependency.
Signed-off-by: Byungchul Park
---
include/linux/dept_page.h | 78 +
include/linux/page-flags.h | 45
On Thu, Feb 17, 2022 at 01:27:42PM +, Matthew Wilcox wrote:
> On Thu, Feb 17, 2022 at 08:10:03PM +0900, Byungchul Park wrote:
> > [7.009608] ===
> > [7.009613] DEPT: Circular dependency has been detected.
> > [7.009614] 5.17.0-rc1-0001
cb92173d1f0 (locking/lockdep, cpu/hotplug: Annotate AP thread) was
introduced to make lockdep_assert_cpus_held() work in AP thread.
However, the annotation is too strong for that purpose. We don't have to
use more than try lock annotation for that.
Furthermore, now that Dept was introduced, false
[7.009608] ===
[7.009613] DEPT: Circular dependency has been detected.
[7.009614] 5.17.0-rc1-00014-g8a599299c0cb-dirty #30 Tainted: GW
[7.009616] ---
[7.009617] summary
[7
17.02.2022 18:12, Sascha Hauer пишет:
> On Thu, Feb 17, 2022 at 05:00:37PM +0300, Dmitry Osipenko wrote:
>> 17.02.2022 11:29, Sascha Hauer пишет:
>>> From: Douglas Anderson
>>>
>>> Jitter was improved by lowering the MPLL bandwidth to account for high
>>> frequency noise in the rk3288 PLL. In
Makes SDT able to track dependencies by wait(waitqueue).
Signed-off-by: Byungchul Park
---
include/linux/wait.h | 6 +-
kernel/sched/wait.c | 16
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 851e07d..21339
Makes Dept able to track dependencies by mutex families.
Signed-off-by: Byungchul Park
---
include/linux/lockdep.h | 18 +++---
include/linux/mutex.h | 31 +++
include/linux/rtmutex.h | 7 +++
3 files changed, 53 insertions(+), 3 deletions(-)
diff
Makes Dept able to track dependencies by
wait_for_completion()/complete().
Signed-off-by: Byungchul Park
---
include/linux/completion.h | 42 --
kernel/sched/completion.c | 12 ++--
2 files changed, 50 insertions(+), 4 deletions(-)
diff --git a/i
wrote:
> On Tue, Feb 15, 2022 at 10:37 PM Damien Le Moal
> wrote:
> >
> > On 2/16/22 13:16, Byungchul Park wrote:
> > > [2.051040 ] ===
> > > [2.051406 ] DEPT: Circular dependency has been detected.
> > > [2.051730 ] 5.17.0-rc1-00014-gcf
Makes Dept able to track dependencies by seqlock with adding wait
annotation on read side of seqlock.
Signed-off-by: Byungchul Park
---
include/linux/seqlock.h | 59 -
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/include/linux/seql
Makes Dept able to track dependencies by spinlock.
Signed-off-by: Byungchul Park
---
include/linux/lockdep.h| 18 +++---
include/linux/spinlock.h | 24
include/linux/spinlock_types_raw.h | 13 +
3 files changed, 52 insertions
Hi Linus,
On Mon, Jan 03, 2022 at 12:38:22PM +0100, Linus Walleij wrote:
> Add some code and config to also support the ACX424AKM used in
> some Sony (Ericsson) Mobile phones.
>
> Signed-off-by: Linus Walleij
Acked-by: Sam Ravnborg
On Mon, Jan 03, 2022 at 12:38:21PM +0100, Linus Walleij wrote:
> These IDs were found in the wild in a Sony Xperia vendor tree.
>
> Signed-off-by: Linus Walleij
> ---
> drivers/gpu/drm/panel/panel-novatek-nt35560.c | 6 --
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/d
On Mon, Jan 03, 2022 at 12:38:20PM +0100, Linus Walleij wrote:
> A code drop from Sony Mobile reveals that the ACX424 panels are
> built around the Novatek NT35560 panel controllers so just bite
> the bullet and rename the driver and all basic symbols so that
> we can modify this driver to cover an
Hi Linus,
On Sat, Feb 19, 2022 at 02:40:33AM +0100, Linus Walleij wrote:
> On Sat, Jan 29, 2022 at 2:26 AM Linus Walleij
> wrote:
> > On Mon, Jan 3, 2022 at 12:40 PM Linus Walleij
> > wrote:
> >
> > > A code drop from Sony Mobile reveals that the ACX424 panels are
> > > built around the Novate
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