Commit Graph

114 Commits

Author SHA1 Message Date
Louis-Alexis Eyraud
81645377c2 drm/panfrost: Add support for Mali on the MT8370 SoC
Add a compatible for the MediaTek MT8370 SoC, with an integrated ARM
Mali G57 MC2 GPU (Valhall-JM, dual core), with new platform data for
its support in the panfrost driver.
It uses the same data as MT8186 for the power management features to
describe power supplies, pm_domains and enablement (one regulator, two
power domains) but also sets the FORCE_AARCH64_PGTABLE flag in the GPU
configuration quirks bitfield to enable AARCH64 4K page table format
mode.
As MT8186 and MT8370 SoC have different GPU architecture (Mali G52 2EE
MC2 for MT8186), making them not compatible, and this mode is only
enabled for Mediatek SoC that are Mali G57 based (compatible with
mediatek,mali-mt8188 or mediatek,mali-8192), having specific platform
data allows to set this flag for MT8370 without modifying MT8186
configuration and behaviour.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250509-mt8370-enable-gpu-v6-4-2833888cb1d3@collabora.com
2025-06-20 15:49:25 +01:00
Louis-Alexis Eyraud
bd77b870eb drm/panfrost: Commonize Mediatek power domain array definitions
In the panfrost driver, the platform data of several Mediatek SoC
declares and uses several different power domains arrays according to
GPU core number present in the SoC:
- mediatek_mt8186_pm_domains (2 cores)
- mediatek_mt8183_pm_domains (3 cores)
- mediatek_mt8192_pm_domains (5 cores)

As they all are fixed arrays, starting with the same entries and the
platform data also has a power domains array length field
(num_pm_domains), they can be replaced by a single array, containing
all entries, if the num_pm_domains field of the platform data is also
set to the matching core number.

So, create a generic power domain array (mediatek_pm_domains) and use
it in the mt8183(b), mt8186, mt8188 and mt8192 platform data instead.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250509-mt8370-enable-gpu-v6-3-2833888cb1d3@collabora.com
2025-06-20 15:49:14 +01:00
Louis-Alexis Eyraud
6905b0d981 drm/panfrost: Drop duplicated Mediatek supplies arrays
In the panfrost driver, the platform data of several Mediatek SoC
declares and uses custom supplies array definitions
(mediatek_mt8192_supplies, mediatek_mt8183_b_supplies), that are the
same as default_supplies (used by default platform data).

So drop these duplicated definitions and use default_supplies instead.
Also, rename mediatek_mt8183_supplies to a more generic name too
(legacy_supplies).

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250509-mt8370-enable-gpu-v6-2-2833888cb1d3@collabora.com
2025-06-20 15:49:05 +01:00
Adrián Larumbe
e48ade5e23 drm/panfrost: show device-wide list of DRM GEM objects over DebugFS
This change is essentially a Panfrost port of commit a3707f53eb
("drm/panthor: show device-wide list of DRM GEM objects over DebugFS").

The DebugFS file is almost the same as in Panthor, minus the GEM object
usage flags, since Panfrost has no kernel-only BO's.

Two additional GEM state flags which are displayed but aren't relevant
to Panthor are 'Purged' and 'Purgeable', since Panfrost implements an
explicit shrinker and a madvise ioctl to flag objects as reclaimable.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250520174634.353267-5-adrian.larumbe@collabora.com
2025-06-02 13:51:15 +01:00
Adrián Larumbe
2f684bbbcb drm/panfrost: Add driver IOCTL for setting BO labels
Allow UM to label a BO for which it possesses a DRM handle.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250520174634.353267-4-adrian.larumbe@collabora.com
2025-06-02 13:51:15 +01:00
Pierre-Eric Pelloux-Prayer
2956554823 drm/sched: Store the drm client_id in drm_sched_fence
This will be used in a later commit to trace the drm client_id in
some of the gpu_scheduler trace events.

This requires changing all the users of drm_sched_job_init to
add an extra parameter.

The newly added drm_client_id field in the drm_sched_fence is a bit
of a duplicate of the owner one. One suggestion I received was to
merge those 2 fields - this can't be done right now as amdgpu uses
some special values (AMDGPU_FENCE_OWNER_*) that can't really be
translated into a client id. Christian is working on getting rid of
those; when it's done we should be able to squash owner/drm_client_id
together.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250526125505.2360-3-pierre-eric.pelloux-prayer@amd.com
2025-05-28 16:15:58 +02:00
Philippe Simons
95bdaa89b2 drm/panfrost: add h616 compatible string
Tie the Allwinner compatible string to the GPU_PM_RT feature bits that will
toggle the clocks and the reset line whenever the power domain is changing
state.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Philippe Simons <simons.philippe@gmail.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250403055210.54486-3-simons.philippe@gmail.com
2025-04-28 10:23:55 +01:00
Ariel D'Alessandro
bfb20a6558 drm/panfrost: Force AARCH64_4K page table format on MediaTek MT8192
MediaTek MT8192 SoC has an ARM Mali-G57 MC5 GPU (Valhall-JM). Now that
Panfrost supports AARCH64_4K page table format, let's enable it on this
SoC.

Running glmark2-es2-drm [0] benchmark, reported the same performance
score on both modes Mali LPAE (LEGACY) vs. AARCH64_4K, before and after
this commit. Tested on a Mediatek (MT8395) Genio 1200 EVK board.

[0] https://github.com/glmark2/glmark2

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250324185801.168664-7-ariel.dalessandro@collabora.com
2025-03-31 12:12:55 +01:00
Ariel D'Alessandro
21fc936cae drm/panfrost: Force AARCH64_4K page table format on MediaTek MT8188
MediaTek MT8188 SoC has an ARM Mali-G57 MC3 GPU (Valhall-JM), which
constantly faults with the current panfrost support.

For instance, running `glmark2-es2-drm` benchmark test:
```
[   79.617461] panfrost 13000000.gpu: js fault, js=1, status=JOB_BUS_FAULT, head=0xaadc380, tail=0xaadc380
[   80.119811] panfrost 13000000.gpu: gpu sched timeout, js=0, config=0x7300, status=0x58, head=0xaaca180, tail=0xaaca180, sched_job=000000002fd03ccc
[   80.129083] panfrost 13000000.gpu: Unhandled Page fault in AS0 at VA 0x0000000000000000
[   80.129083] Reason: TODO
[   80.129083] raw fault status: 0x1C2
[   80.129083] decoded fault status: SLAVE FAULT
[   80.129083] exception type 0xC2: TRANSLATION_FAULT_2
[   80.129083] access type 0x1: EXECUTE
[   80.129083] source id 0x0
```

Note that current panfrost mode (Mali LPAE - LEGACY) only allows to
specify write-cache or implementation-defined as the caching policy,
probably not matching the right configuration. As depicted in the source
code:

drivers/iommu/io-pgtable-arm.c:
```
* MEMATTR: Mali has no actual notion of a non-cacheable type, so the
* best we can do is mimic the out-of-tree driver and hope that the
* "implementation-defined caching policy" is good enough...
```

Now that Panfrost supports AARCH64_4K page table format, let's enable it
on Mediatek MT8188 and configure the cache/shareability policies
properly.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250324185801.168664-6-ariel.dalessandro@collabora.com
2025-03-31 12:12:48 +01:00
Dmitry Osipenko
954907f714 drm/shmem-helper: Refactor locked/unlocked functions
Add locked and remove unlocked postfixes from drm-shmem function names,
making names consistent with the drm/gem core code.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.d>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250322212608.40511-6-dmitry.osipenko@collabora.com
2025-03-26 23:00:12 +03:00
Maarten Lankhorst
33f029af89 Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
The v6.13-rc2 release included a bunch of breaking changes,
specifically the MODULE_IMPORT_NS commit.

Backmerge in order to fix them before the next pull-request.

Include the fix from Stephen Roswell.

Caused by commit

  25c3fd1183 ("drm/virtio: Add a helper to map and note the dma addrs and lengths")

Interacting with commit

  cdd30ebb1b ("module: Convert symbol namespace to string literal")

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209121717.2abe8026@canb.auug.org.au
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2024-12-09 16:35:21 +01:00
Jani Nikula
cb2e1c2136 drm: remove driver date from struct drm_driver and all drivers
We stopped using the driver initialized date in commit 7fb8af6798
("drm: deprecate driver date") and (eventually) started returning "0"
for drm_version ioctl instead.

Finish the job, and remove the unused date member from struct
drm_driver, its initialization from drivers, along with the common
DRIVER_DATE macros.

v2: Also update drivers/accel (kernel test robot)

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Simon Ser <contact@emersion.fr>
Acked-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # msm
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1f2bf2543aed270a06f6c707fd6ed1b78bf16712.1733322525.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-12-05 12:35:42 +02:00
Linus Torvalds
e70140ba0d Get rid of 'remove_new' relic from platform driver struct
The continual trickle of small conversion patches is grating on me, and
is really not helping.  Just get rid of the 'remove_new' member
function, which is just an alias for the plain 'remove', and had a
comment to that effect:

  /*
   * .remove_new() is a relic from a prototype conversion of .remove().
   * New drivers are supposed to implement .remove(). Once all drivers are
   * converted to not use .remove_new any more, it will be dropped.
   */

This was just a tree-wide 'sed' script that replaced '.remove_new' with
'.remove', with some care taken to turn a subsequent tab into two tabs
to make things line up.

I did do some minimal manual whitespace adjustment for places that used
spaces to line things up.

Then I just removed the old (sic) .remove_new member function, and this
is the end result.  No more unnecessary conversion noise.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-01 15:12:43 -08:00
Mary Guillemard
3a8d97611b drm/panfrost: Add cycle counter job requirement
Extend the uAPI with a new job requirement flag for cycle
counters. This requirement is used by userland to indicate that a job
requires cycle counters or system timestamp to be propagated. (for use
with write value timestamp jobs)

We cannot enable cycle counters unconditionally as this would result in
an increase of GPU power consumption. As a result, they should be left
off unless required by the application.

If a job requires cycle counters or system timestamps propagation, we
must enable cycle counting before issuing a job and disable it right
after the job completes.

Since this extends the uAPI and because userland needs a way to advertise
features like VK_KHR_shader_clock conditionally, we bumps the driver
minor version.

v2:
- Rework commit message
- Squash uAPI changes and implementation in this commit
- Simplify changes based on Steven Price comments

v3:
- Add Steven Price r-b
- Fix a codestyle issue

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240819080224.24914-3-mary.guillemard@collabora.com
2024-09-02 10:13:38 +01:00
Mary Guillemard
9c75b16cab drm/panfrost: Add SYSTEM_TIMESTAMP and SYSTEM_TIMESTAMP_FREQUENCY parameters
Expose system timestamp and frequency supported by the GPU.

Mali uses an external timer as GPU system time. On ARM, this is wired to
the generic arch timer so we wire cntfrq_el0 as device frequency.

This new uAPI will be used in Mesa to implement timestamp queries and
VK_KHR_calibrated_timestamps.

v2:
- Rewrote to use GPU timestamp register
- Add missing include for arch_timer_get_cntfrq
- Rework commit message

v3:
- Move panfrost_cycle_counter_get and panfrost_cycle_counter_put to
  panfrost_ioctl_query_timestamp
- Handle possible overflow in panfrost_timestamp_read

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240819080224.24914-2-mary.guillemard@collabora.com
2024-09-02 10:13:38 +01:00
Dragan Simic
80f4e62730 drm/panfrost: Mark simple_ondemand governor as softdep
Panfrost DRM driver uses devfreq to perform DVFS, while using simple_ondemand
devfreq governor by default.  This causes driver initialization to fail on
boot when simple_ondemand governor isn't built into the kernel statically,
as a result of the missing module dependency and, consequently, the required
governor module not being included in the initial ramdisk.  Thus, let's mark
simple_ondemand governor as a softdep for Panfrost, to have its kernel module
included in the initial ramdisk.

This is a rather longstanding issue that has forced distributions to build
devfreq governors statically into their kernels, [1][2] or has forced users
to introduce some unnecessary workarounds. [3]

For future reference, not having support for the simple_ondemand governor in
the initial ramdisk produces errors in the kernel log similar to these below,
which were taken from a Pine64 RockPro64:

  panfrost ff9a0000.gpu: [drm:panfrost_devfreq_init [panfrost]] *ERROR* Couldn't initialize GPU devfreq
  panfrost ff9a0000.gpu: Fatal error during GPU init
  panfrost: probe of ff9a0000.gpu failed with error -22

Having simple_ondemand marked as a softdep for Panfrost may not resolve this
issue for all Linux distributions.  In particular, it will remain unresolved
for the distributions whose utilities for the initial ramdisk generation do
not handle the available softdep information [4] properly yet.  However, some
Linux distributions already handle softdeps properly while generating their
initial ramdisks, [5] and this is a prerequisite step in the right direction
for the distributions that don't handle them properly yet.

[1] https://gitlab.manjaro.org/manjaro-arm/packages/core/linux/-/blob/linux61/config?ref_type=heads#L8180
[2] https://salsa.debian.org/kernel-team/linux/-/merge_requests/1066
[3] https://forum.pine64.org/showthread.php?tid=15458
[4] https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git/commit/?id=49d8e0b59052999de577ab732b719cfbeb89504d
[5] 97ac4d37aa

Cc: Diederik de Haas <didi.debian@cknow.org>
Cc: Furkan Kardame <f.kardame@manjaro.org>
Cc: stable@vger.kernel.org
Fixes: f3ba91228e ("drm/panfrost: Add initial panfrost driver")
Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4e1e00422a14db4e2a80870afb704405da16fd1b.1718655077.git.dsimic@manjaro.org
2024-07-03 14:27:35 +01:00
AngeloGioacchino Del Regno
72533b6784 drm/panfrost: Add support for Mali on the MT8188 SoC
MediaTek MT8188 has a Mali-G57 MC3 (Valhall-JM): add a new
compatible and platform data using the same supplies and the
same power domain lists as MT8183 (one regulator, three power
domains).

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611085602.491324-3-angelogioacchino.delregno@collabora.com
2024-06-19 13:41:28 +02:00
Adrián Larumbe
dfe4fd269a drm/panfrost: Only display fdinfo's engine and cycle tags when profiling is on
If job accounting is disabled, then both fdinfo's drm-engine and drm-cycle
key values will remain immutable. In that case, it makes more sense not to
display them at all to avoid confusing user space profiling tools.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240316231306.293817-1-adrian.larumbe@collabora.com
2024-03-25 15:54:50 +00:00
Adrián Larumbe
b12f3ea7c1 drm/panfrost: Replace fdinfo's profiling debugfs knob with sysfs
Debugfs isn't always available in production builds that try to squeeze
every single byte out of the kernel image, but we still need a way to
toggle the timestamp and cycle counter registers so that jobs can be
profiled for fdinfo's drm engine and cycle calculations.

Drop the debugfs knob and replace it with a sysfs file that accomplishes
the same functionality, and document its ABI in a separate file.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240306015819.822128-2-adrian.larumbe@collabora.com
2024-03-11 13:27:10 +01:00
Maxime Ripard
3bf3e21c15
Merge drm/drm-next into drm-misc-next
Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
2023-11-15 10:56:44 +01:00
AngeloGioacchino Del Regno
540527b138 drm/panfrost: Set regulators on/off during system sleep on MediaTek SoCs
All of the MediaTek SoCs supported by Panfrost can completely cut power
to the GPU during full system sleep without any user-noticeable delay
in the resume operation, as shown by measurements taken on multiple
MediaTek SoCs (MT8183/86/92/95).

As an example, for MT8195 - a "before" with only runtime PM operations
(so, without turning on/off regulators), and an "after" executing both
the system sleep .resume() handler and .runtime_resume() (so the time
refers to T_Resume + T_Runtime_Resume):

Average Panfrost-only system sleep resume time, before: ~33500ns
Average Panfrost-only system sleep resume time, after:  ~336200ns

Keep in mind that this additional ~308200 nanoseconds delay happens only
in resume from a full system suspend, and not in runtime PM operations,
hence it is acceptable.

Measurements were also taken on MT8186, showing a delay of ~312000 ns.

Testing of this happened on all of the aforementioned MediaTek SoCs, but:
MT8183 got tested only by KernelCI with <=10 suspend/resume cycles
MT8186, MT8192, MT8195 were tested manually with over 100 suspend/resume
cycles with GNOME DE (Mutter + Wayland).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231109102543.42971-7-angelogioacchino.delregno@collabora.com
2023-11-10 14:12:23 +00:00
AngeloGioacchino Del Regno
32f175d426 drm/panfrost: Set clocks on/off during system sleep on MediaTek SoCs
All of the MediaTek SoCs supported by Panfrost can switch the clocks
off and on during system sleep to save some power without any user
experience penalty.

Measurements taken on multiple MediaTek SoCs (MT8183/8186/8192/8195)
show that adding this will not prolong the time that is required to
resume the system in any meaningful way.

As an example, for MT8195 - a "before" with only runtime PM operations
(so, without turning on/off GPU clocks), and an "after" executing both
the system sleep .resume() handler and .runtime_resume() (so the time
refers to T_Resume + T_Runtime_Resume):

Average Panfrost-only system sleep resume time, before: ~28000ns
Average Panfrost-only system sleep resume time, after:  ~33500ns

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231109102543.42971-5-angelogioacchino.delregno@collabora.com
2023-11-10 14:12:07 +00:00
Danilo Krummrich
a78422e9df drm/sched: implement dynamic job-flow control
Currently, job flow control is implemented simply by limiting the number
of jobs in flight. Therefore, a scheduler is initialized with a credit
limit that corresponds to the number of jobs which can be sent to the
hardware.

This implies that for each job, drivers need to account for the maximum
job size possible in order to not overflow the ring buffer.

However, there are drivers, such as Nouveau, where the job size has a
rather large range. For such drivers it can easily happen that job
submissions not even filling the ring by 1% can block subsequent
submissions, which, in the worst case, can lead to the ring run dry.

In order to overcome this issue, allow for tracking the actual job size
instead of the number of jobs. Therefore, add a field to track a job's
credit count, which represents the number of credits a job contributes
to the scheduler's credit limit.

Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Luben Tuikov <ltuikov89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231110001638.71750-1-dakr@redhat.com
2023-11-10 02:54:29 +01:00
Linus Torvalds
ecae0bd517 Many singleton patches against the MM code. The patch series which are
included in this merge do the following:
 
 - Kemeng Shi has contributed some compation maintenance work in the
   series "Fixes and cleanups to compaction".
 
 - Joel Fernandes has a patchset ("Optimize mremap during mutual
   alignment within PMD") which fixes an obscure issue with mremap()'s
   pagetable handling during a subsequent exec(), based upon an
   implementation which Linus suggested.
 
 - More DAMON/DAMOS maintenance and feature work from SeongJae Park i the
   following patch series:
 
 	mm/damon: misc fixups for documents, comments and its tracepoint
 	mm/damon: add a tracepoint for damos apply target regions
 	mm/damon: provide pseudo-moving sum based access rate
 	mm/damon: implement DAMOS apply intervals
 	mm/damon/core-test: Fix memory leaks in core-test
 	mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval
 
 - In the series "Do not try to access unaccepted memory" Adrian Hunter
   provides some fixups for the recently-added "unaccepted memory' feature.
   To increase the feature's checking coverage.  "Plug a few gaps where
   RAM is exposed without checking if it is unaccepted memory".
 
 - In the series "cleanups for lockless slab shrink" Qi Zheng has done
   some maintenance work which is preparation for the lockless slab
   shrinking code.
 
 - Qi Zheng has redone the earlier (and reverted) attempt to make slab
   shrinking lockless in the series "use refcount+RCU method to implement
   lockless slab shrink".
 
 - David Hildenbrand contributes some maintenance work for the rmap code
   in the series "Anon rmap cleanups".
 
 - Kefeng Wang does more folio conversions and some maintenance work in
   the migration code.  Series "mm: migrate: more folio conversion and
   unification".
 
 - Matthew Wilcox has fixed an issue in the buffer_head code which was
   causing long stalls under some heavy memory/IO loads.  Some cleanups
   were added on the way.  Series "Add and use bdev_getblk()".
 
 - In the series "Use nth_page() in place of direct struct page
   manipulation" Zi Yan has fixed a potential issue with the direct
   manipulation of hugetlb page frames.
 
 - In the series "mm: hugetlb: Skip initialization of gigantic tail
   struct pages if freed by HVO" has improved our handling of gigantic
   pages in the hugetlb vmmemmep optimizaton code.  This provides
   significant boot time improvements when significant amounts of gigantic
   pages are in use.
 
 - Matthew Wilcox has sent the series "Small hugetlb cleanups" - code
   rationalization and folio conversions in the hugetlb code.
 
 - Yin Fengwei has improved mlock()'s handling of large folios in the
   series "support large folio for mlock"
 
 - In the series "Expose swapcache stat for memcg v1" Liu Shixin has
   added statistics for memcg v1 users which are available (and useful)
   under memcg v2.
 
 - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable)
   prctl so that userspace may direct the kernel to not automatically
   propagate the denial to child processes.  The series is named "MDWE
   without inheritance".
 
 - Kefeng Wang has provided the series "mm: convert numa balancing
   functions to use a folio" which does what it says.
 
 - In the series "mm/ksm: add fork-exec support for prctl" Stefan Roesch
   makes is possible for a process to propagate KSM treatment across
   exec().
 
 - Huang Ying has enhanced memory tiering's calculation of memory
   distances.  This is used to permit the dax/kmem driver to use "high
   bandwidth memory" in addition to Optane Data Center Persistent Memory
   Modules (DCPMM).  The series is named "memory tiering: calculate
   abstract distance based on ACPI HMAT"
 
 - In the series "Smart scanning mode for KSM" Stefan Roesch has
   optimized KSM by teaching it to retain and use some historical
   information from previous scans.
 
 - Yosry Ahmed has fixed some inconsistencies in memcg statistics in the
   series "mm: memcg: fix tracking of pending stats updates values".
 
 - In the series "Implement IOCTL to get and optionally clear info about
   PTEs" Peter Xu has added an ioctl to /proc/<pid>/pagemap which permits
   us to atomically read-then-clear page softdirty state.  This is mainly
   used by CRIU.
 
 - Hugh Dickins contributed the series "shmem,tmpfs: general maintenance"
   - a bunch of relatively minor maintenance tweaks to this code.
 
 - Matthew Wilcox has increased the use of the VMA lock over file-backed
   page faults in the series "Handle more faults under the VMA lock".  Some
   rationalizations of the fault path became possible as a result.
 
 - In the series "mm/rmap: convert page_move_anon_rmap() to
   folio_move_anon_rmap()" David Hildenbrand has implemented some cleanups
   and folio conversions.
 
 - In the series "various improvements to the GUP interface" Lorenzo
   Stoakes has simplified and improved the GUP interface with an eye to
   providing groundwork for future improvements.
 
 - Andrey Konovalov has sent along the series "kasan: assorted fixes and
   improvements" which does those things.
 
 - Some page allocator maintenance work from Kemeng Shi in the series
   "Two minor cleanups to break_down_buddy_pages".
 
 - In thes series "New selftest for mm" Breno Leitao has developed
   another MM self test which tickles a race we had between madvise() and
   page faults.
 
 - In the series "Add folio_end_read" Matthew Wilcox provides cleanups
   and an optimization to the core pagecache code.
 
 - Nhat Pham has added memcg accounting for hugetlb memory in the series
   "hugetlb memcg accounting".
 
 - Cleanups and rationalizations to the pagemap code from Lorenzo
   Stoakes, in the series "Abstract vma_merge() and split_vma()".
 
 - Audra Mitchell has fixed issues in the procfs page_owner code's new
   timestamping feature which was causing some misbehaviours.  In the
   series "Fix page_owner's use of free timestamps".
 
 - Lorenzo Stoakes has fixed the handling of new mappings of sealed files
   in the series "permit write-sealed memfd read-only shared mappings".
 
 - Mike Kravetz has optimized the hugetlb vmemmap optimization in the
   series "Batch hugetlb vmemmap modification operations".
 
 - Some buffer_head folio conversions and cleanups from Matthew Wilcox in
   the series "Finish the create_empty_buffers() transition".
 
 - As a page allocator performance optimization Huang Ying has added
   automatic tuning to the allocator's per-cpu-pages feature, in the series
   "mm: PCP high auto-tuning".
 
 - Roman Gushchin has contributed the patchset "mm: improve performance
   of accounted kernel memory allocations" which improves their performance
   by ~30% as measured by a micro-benchmark.
 
 - folio conversions from Kefeng Wang in the series "mm: convert page
   cpupid functions to folios".
 
 - Some kmemleak fixups in Liu Shixin's series "Some bugfix about
   kmemleak".
 
 - Qi Zheng has improved our handling of memoryless nodes by keeping them
   off the allocation fallback list.  This is done in the series "handle
   memoryless nodes more appropriately".
 
 - khugepaged conversions from Vishal Moola in the series "Some
   khugepaged folio conversions".
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Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
 "Many singleton patches against the MM code. The patch series which are
  included in this merge do the following:

   - Kemeng Shi has contributed some compation maintenance work in the
     series 'Fixes and cleanups to compaction'

   - Joel Fernandes has a patchset ('Optimize mremap during mutual
     alignment within PMD') which fixes an obscure issue with mremap()'s
     pagetable handling during a subsequent exec(), based upon an
     implementation which Linus suggested

   - More DAMON/DAMOS maintenance and feature work from SeongJae Park i
     the following patch series:

	mm/damon: misc fixups for documents, comments and its tracepoint
	mm/damon: add a tracepoint for damos apply target regions
	mm/damon: provide pseudo-moving sum based access rate
	mm/damon: implement DAMOS apply intervals
	mm/damon/core-test: Fix memory leaks in core-test
	mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval

   - In the series 'Do not try to access unaccepted memory' Adrian
     Hunter provides some fixups for the recently-added 'unaccepted
     memory' feature. To increase the feature's checking coverage. 'Plug
     a few gaps where RAM is exposed without checking if it is
     unaccepted memory'

   - In the series 'cleanups for lockless slab shrink' Qi Zheng has done
     some maintenance work which is preparation for the lockless slab
     shrinking code

   - Qi Zheng has redone the earlier (and reverted) attempt to make slab
     shrinking lockless in the series 'use refcount+RCU method to
     implement lockless slab shrink'

   - David Hildenbrand contributes some maintenance work for the rmap
     code in the series 'Anon rmap cleanups'

   - Kefeng Wang does more folio conversions and some maintenance work
     in the migration code. Series 'mm: migrate: more folio conversion
     and unification'

   - Matthew Wilcox has fixed an issue in the buffer_head code which was
     causing long stalls under some heavy memory/IO loads. Some cleanups
     were added on the way. Series 'Add and use bdev_getblk()'

   - In the series 'Use nth_page() in place of direct struct page
     manipulation' Zi Yan has fixed a potential issue with the direct
     manipulation of hugetlb page frames

   - In the series 'mm: hugetlb: Skip initialization of gigantic tail
     struct pages if freed by HVO' has improved our handling of gigantic
     pages in the hugetlb vmmemmep optimizaton code. This provides
     significant boot time improvements when significant amounts of
     gigantic pages are in use

   - Matthew Wilcox has sent the series 'Small hugetlb cleanups' - code
     rationalization and folio conversions in the hugetlb code

   - Yin Fengwei has improved mlock()'s handling of large folios in the
     series 'support large folio for mlock'

   - In the series 'Expose swapcache stat for memcg v1' Liu Shixin has
     added statistics for memcg v1 users which are available (and
     useful) under memcg v2

   - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable)
     prctl so that userspace may direct the kernel to not automatically
     propagate the denial to child processes. The series is named 'MDWE
     without inheritance'

   - Kefeng Wang has provided the series 'mm: convert numa balancing
     functions to use a folio' which does what it says

   - In the series 'mm/ksm: add fork-exec support for prctl' Stefan
     Roesch makes is possible for a process to propagate KSM treatment
     across exec()

   - Huang Ying has enhanced memory tiering's calculation of memory
     distances. This is used to permit the dax/kmem driver to use 'high
     bandwidth memory' in addition to Optane Data Center Persistent
     Memory Modules (DCPMM). The series is named 'memory tiering:
     calculate abstract distance based on ACPI HMAT'

   - In the series 'Smart scanning mode for KSM' Stefan Roesch has
     optimized KSM by teaching it to retain and use some historical
     information from previous scans

   - Yosry Ahmed has fixed some inconsistencies in memcg statistics in
     the series 'mm: memcg: fix tracking of pending stats updates
     values'

   - In the series 'Implement IOCTL to get and optionally clear info
     about PTEs' Peter Xu has added an ioctl to /proc/<pid>/pagemap
     which permits us to atomically read-then-clear page softdirty
     state. This is mainly used by CRIU

   - Hugh Dickins contributed the series 'shmem,tmpfs: general
     maintenance', a bunch of relatively minor maintenance tweaks to
     this code

   - Matthew Wilcox has increased the use of the VMA lock over
     file-backed page faults in the series 'Handle more faults under the
     VMA lock'. Some rationalizations of the fault path became possible
     as a result

   - In the series 'mm/rmap: convert page_move_anon_rmap() to
     folio_move_anon_rmap()' David Hildenbrand has implemented some
     cleanups and folio conversions

   - In the series 'various improvements to the GUP interface' Lorenzo
     Stoakes has simplified and improved the GUP interface with an eye
     to providing groundwork for future improvements

   - Andrey Konovalov has sent along the series 'kasan: assorted fixes
     and improvements' which does those things

   - Some page allocator maintenance work from Kemeng Shi in the series
     'Two minor cleanups to break_down_buddy_pages'

   - In thes series 'New selftest for mm' Breno Leitao has developed
     another MM self test which tickles a race we had between madvise()
     and page faults

   - In the series 'Add folio_end_read' Matthew Wilcox provides cleanups
     and an optimization to the core pagecache code

   - Nhat Pham has added memcg accounting for hugetlb memory in the
     series 'hugetlb memcg accounting'

   - Cleanups and rationalizations to the pagemap code from Lorenzo
     Stoakes, in the series 'Abstract vma_merge() and split_vma()'

   - Audra Mitchell has fixed issues in the procfs page_owner code's new
     timestamping feature which was causing some misbehaviours. In the
     series 'Fix page_owner's use of free timestamps'

   - Lorenzo Stoakes has fixed the handling of new mappings of sealed
     files in the series 'permit write-sealed memfd read-only shared
     mappings'

   - Mike Kravetz has optimized the hugetlb vmemmap optimization in the
     series 'Batch hugetlb vmemmap modification operations'

   - Some buffer_head folio conversions and cleanups from Matthew Wilcox
     in the series 'Finish the create_empty_buffers() transition'

   - As a page allocator performance optimization Huang Ying has added
     automatic tuning to the allocator's per-cpu-pages feature, in the
     series 'mm: PCP high auto-tuning'

   - Roman Gushchin has contributed the patchset 'mm: improve
     performance of accounted kernel memory allocations' which improves
     their performance by ~30% as measured by a micro-benchmark

   - folio conversions from Kefeng Wang in the series 'mm: convert page
     cpupid functions to folios'

   - Some kmemleak fixups in Liu Shixin's series 'Some bugfix about
     kmemleak'

   - Qi Zheng has improved our handling of memoryless nodes by keeping
     them off the allocation fallback list. This is done in the series
     'handle memoryless nodes more appropriately'

   - khugepaged conversions from Vishal Moola in the series 'Some
     khugepaged folio conversions'"

[ bcachefs conflicts with the dynamically allocated shrinkers have been
  resolved as per Stephen Rothwell in

     https://lore.kernel.org/all/20230913093553.4290421e@canb.auug.org.au/

  with help from Qi Zheng.

  The clone3 test filtering conflict was half-arsed by yours truly ]

* tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (406 commits)
  mm/damon/sysfs: update monitoring target regions for online input commit
  mm/damon/sysfs: remove requested targets when online-commit inputs
  selftests: add a sanity check for zswap
  Documentation: maple_tree: fix word spelling error
  mm/vmalloc: fix the unchecked dereference warning in vread_iter()
  zswap: export compression failure stats
  Documentation: ubsan: drop "the" from article title
  mempolicy: migration attempt to match interleave nodes
  mempolicy: mmap_lock is not needed while migrating folios
  mempolicy: alloc_pages_mpol() for NUMA policy without vma
  mm: add page_rmappable_folio() wrapper
  mempolicy: remove confusing MPOL_MF_LAZY dead code
  mempolicy: mpol_shared_policy_init() without pseudo-vma
  mempolicy trivia: use pgoff_t in shared mempolicy tree
  mempolicy trivia: slightly more consistent naming
  mempolicy trivia: delete those ancient pr_debug()s
  mempolicy: fix migrate_pages(2) syscall return nr_failed
  kernfs: drop shared NUMA mempolicy hooks
  hugetlbfs: drop shared NUMA mempolicy pretence
  mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets()
  ...
2023-11-02 19:38:47 -10:00
Qi Zheng
e11c4f3acb drm/panfrost: dynamically allocate the drm-panfrost shrinker
In preparation for implementing lockless slab shrink, use new APIs to
dynamically allocate the drm-panfrost shrinker, so that it can be freed
asynchronously via RCU. Then it doesn't need to wait for RCU read-side
critical section when releasing the struct panfrost_device.

Link: https://lkml.kernel.org/r/20230911094444.68966-23-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Herring <robh@kernel.org>
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Anna Schumaker <anna@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bob Peterson <rpeterso@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Carlos Llamas <cmllamas@google.com>
Cc: Chandan Babu R <chandan.babu@oracle.com>
Cc: Chao Yu <chao@kernel.org>
Cc: Chris Mason <clm@fb.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Chuck Lever <cel@kernel.org>
Cc: Coly Li <colyli@suse.de>
Cc: Dai Ngo <Dai.Ngo@oracle.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Gao Xiang <hsiangkao@linux.alibaba.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Jeffle Xu <jefflexu@linux.alibaba.com>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Kirill Tkhai <tkhai@ya.ru>
Cc: Marijn Suijten <marijn.suijten@somainline.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: Olga Kornievskaia <kolga@netapp.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Sean Paul <sean@poorly.run>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Song Liu <song@kernel.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Talpey <tom@talpey.com>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Yue Hu <huyue2@coolpad.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-04 10:32:25 -07:00
Adrián Larumbe
9ccdac7aa8 drm/panfrost: Add fdinfo support for memory stats
A new DRM GEM object function is added so that drm_show_memory_stats can
provide more accurate memory usage numbers.

Ideally, in panfrost_gem_status, the BO's purgeable flag would be checked
after locking the driver's shrinker mutex, but drm_show_memory_stats takes
over the drm file's object handle database spinlock, so there's potential
for a race condition here.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230929181616.2769345-4-adrian.larumbe@collabora.com
2023-10-04 13:04:15 +02:00
Adrián Larumbe
f11b0417ee drm/panfrost: Add fdinfo support GPU load metrics
The drm-stats fdinfo tags made available to user space are drm-engine,
drm-cycles, drm-max-freq and drm-curfreq, one per job slot.

This deviates from standard practice in other DRM drivers, where a single
set of key:value pairs is provided for the whole render engine. However,
Panfrost has separate queues for fragment and vertex/tiler jobs, so a
decision was made to calculate bus cycles and workload times separately.

Maximum operating frequency is calculated at devfreq initialisation time.
Current frequency is made available to user space because nvtop uses it
when performing engine usage calculations.

It is important to bear in mind that both GPU cycle and kernel time numbers
provided are at best rough estimations, and always reported in excess from
the actual figure because of two reasons:
 - Excess time because of the delay between the end of a job processing,
   the subsequent job IRQ and the actual time of the sample.
 - Time spent in the engine queue waiting for the GPU to pick up the next
   job.

To avoid race conditions during enablement/disabling, a reference counting
mechanism was introduced, and a job flag that tells us whether a given job
increased the refcount. This is necessary, because user space can toggle
cycle counting through a debugfs file, and a given job might have been in
flight by the time cycle counting was disabled.

The main goal of the debugfs cycle counter knob is letting tools like nvtop
or IGT's gputop switch it at any time, to avoid power waste in case no
engine usage measuring is necessary.

Also add a documentation file explaining the possible values for fdinfo's
engine keystrings and Panfrost-specific drm-curfreq-<keystr> pairs.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230929181616.2769345-3-adrian.larumbe@collabora.com
2023-10-04 13:04:15 +02:00
Rob Herring
722d4f06e5 drm: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230714174545.4056287-1-robh@kernel.org
2023-07-21 09:12:43 +02:00
Thomas Zimmermann
71e801b9b4 drm: Clear fd/handle callbacks in struct drm_driver
Clear all assignments of struct drm_driver's fd/handle callbacks to
drm_gem_prime_fd_to_handle() and drm_gem_prime_handle_to_fd(). These
functions are called by default. Add a TODO item to convert vmwgfx
to the defaults as well.

v2:
	* remove TODO item (Zack)
	* also update amdgpu's amdgpu_partition_driver

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Simon Ser <contact@emersion.fr>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Jeffrey Hugo <quic_jhugo@quicinc.com> # qaic
Link: https://patchwork.freedesktop.org/patch/msgid/20230620080252.16368-3-tzimmermann@suse.de
2023-06-26 11:08:41 +02:00
Dmitry Osipenko
21aa27ddc5 drm/shmem-helper: Switch to reservation lock
Replace all drm-shmem locks with a GEM reservation lock. This makes locks
consistent with dma-buf locking convention where importers are responsible
for holding reservation lock for all operations performed over dma-bufs,
preventing deadlock between dma-buf importers and exporters.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230529223935.2672495-7-dmitry.osipenko@collabora.com
2023-06-21 20:22:20 +03:00
Thomas Zimmermann
0adec22702 drm: Remove struct drm_driver.gem_prime_mmap
All drivers initialize this field with drm_gem_prime_mmap(). Call
the function directly and remove the field. Simplifies the code and
resolves a long-standing TODO item.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613150441.17720-3-tzimmermann@suse.de
2023-06-19 13:56:40 +02:00
Uwe Kleine-König
e41977a83b drm/panfrost: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230507162616.1368908-37-u.kleine-koenig@pengutronix.de
2023-06-08 09:04:12 -07:00
AngeloGioacchino Del Regno
901cdf66e8 drm/panfrost: Add support for Mali on the MT8186 SoC
MediaTek MT8186 has a Mali-G52 MC2 2EE (Bifrost): add a new compatible
and platform data using the same supplies list as "mt8183_b" (only one
regulator), and a new pm_domains list with only two power domains.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316102041.210269-13-angelogioacchino.delregno@collabora.com
2023-03-23 10:43:20 +01:00
AngeloGioacchino Del Regno
ab1a072c05 drm/panfrost: Add new compatible for Mali on the MT8183 SoC
The "mediatek,mt8183-mali" compatible uses platform data that calls for
getting (and managing) two regulators ("mali" and "sram") but devfreq
does not support this usecase, resulting in DVFS not working.

Since a lot of MediaTek SoCs need to set the voltages for the GPU SRAM
regulator in a specific relation to the GPU VCORE regulator, a MediaTek
SoC specific driver was introduced to automatically satisfy, through
coupling, these constraints: this means that there is at all no need to
manage both regulators in panfrost but to otherwise just manage the main
"mali" (-> gpu vcore) regulator instead.

Keeping in mind that we cannot break the ABI, the most sensible route
(avoiding hacks and uselessly overcomplicated code) to get a MT8183
node with one power supply was to add a new "mediatek,mt8183b-mali"
compatible, which effectively deprecates the former.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316102041.210269-12-angelogioacchino.delregno@collabora.com
2023-03-23 10:43:19 +01:00
Alyssa Rosenzweig
4c6811800c drm/panfrost: Add mediatek,mt8192-mali compatible
Required for Mali-G57 on the Mediatek MT8192 and MT8195, which
uses even more power domains than the MT8183 before it.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
[Angelo: Removed unneeded "sram" supply, added mt8195 to commit description]
Co-developed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316102041.210269-11-angelogioacchino.delregno@collabora.com
2023-03-23 10:43:18 +01:00
Thomas Zimmermann
e0106ac978 Revert "drm/shmem-helper: Switch to reservation lock"
This reverts commit 67b7836d44.

The locking appears incomplete. A caller of SHMEM helper's pin
function never acquires the dma-buf reservation lock. So we get

  WARNING: CPU: 3 PID: 967 at drivers/gpu/drm/drm_gem_shmem_helper.c:243 drm_gem_shmem_pin+0x42/0x90 [drm_shmem_helper]

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230228152612.19971-1-tzimmermann@suse.de
2023-02-28 16:41:32 +01:00
Dmitry Osipenko
67b7836d44 drm/shmem-helper: Switch to reservation lock
Replace all drm-shmem locks with a GEM reservation lock. This makes locks
consistent with dma-buf locking convention where importers are responsible
for holding reservation lock for all operations performed over dma-bufs,
preventing deadlock between dma-buf importers and exporters.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://lore.kernel.org/all/20230108210445.3948344-8-dmitry.osipenko@collabora.com/
2023-02-27 07:10:56 +03:00
Maíra Canal
4636c4a5ea
drm/panfrost: Use drm_sched_job_add_syncobj_dependency()
As panfrost_copy_in_sync() performs the same steps as
drm_sched_job_add_syncobj_dependency(), replace the open-coded
implementation in Panfrost in order to simply use the DRM function.

Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209124447.467867-5-mcanal@igalia.com
2023-02-24 17:20:14 -03:00
Daniel Vetter
aebd8f0c6f Linux 6.2-rc6
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Merge v6.2-rc6 into drm-next

Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.

Conflicts:
- Tiny conflict in drm_fbdev_generic.c between variable rename and
  missing error handling that got added.
- Conflict in drm_fb_helper.c between the added call to vgaswitcheroo
  in drm_fb_helper_single_fb_probe and a refactor patch that extracted
  lots of helpers and incidentally removed the dev local variable.
  Readd it to make things compile.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2023-01-31 12:23:23 +01:00
Steven Price
4217c6ac81 drm/panfrost: Fix GEM handle creation ref-counting
panfrost_gem_create_with_handle() previously returned a BO but with the
only reference being from the handle, which user space could in theory
guess and release, causing a use-after-free. Additionally if the call to
panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then
a(nother) reference on the BO was dropped.

The _create_with_handle() is a problematic pattern, so ditch it and
instead create the handle in panfrost_ioctl_create_bo(). If the call to
panfrost_gem_mapping_get() fails then this means that user space has
indeed gone behind our back and freed the handle. In which case just
return an error code.

Reported-by: Rob Clark <robdclark@chromium.org>
Fixes: f3ba91228e ("drm/panfrost: Add initial panfrost driver")
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219140130.410578-1-steven.price@arm.com
2022-12-21 15:04:42 +00:00
Paul Cercueil
53d36818ae
drm: panfrost: Remove #ifdef guards for PM related functions
Use the EXPORT_GPL_RUNTIME_DEV_PM_OPS() and pm_ptr() macros to handle
the PM callbacks.

These macros allow the PM functions to be automatically dropped by the
compiler when CONFIG_PM is disabled, without having to use #ifdef
guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221129191942.138244-3-paul@crapouillou.net
2022-12-12 13:07:01 +00:00
Linus Torvalds
507f811f20 More power management updates for 5.20-rc1
- Fix return error code in mtk_cpu_dvfs_info_init (Yang Yingliang).
 
  - Minor cleanups and support for new boards for Qcom cpufreq drivers
    (Bryan O'Donoghue, Konrad Dybcio, Pierre Gondois, and Yicong Yang).
 
  - Fix sparse warnings for Tegra cpufreq driver (Viresh Kumar).
 
  - Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh
    Kumar).
 
  - Add dev_pm_opp_set_config() and friends and migrate other users and
    helpers to using them (Viresh Kumar).
 
  - Add support for multiple clocks for a device (Viresh Kumar and
    Krzysztof Kozlowski).
 
  - Configure resources before adding OPP table for Venus (Stanimir
    Varbanov).
 
  - Keep reference count up for opp->np and opp_table->np while they are
    still in use (Liang He).
 
  - Minor OPP cleanups (Viresh Kumar and Yang Li).
 
  - Add a trace event for cpuidle to track missed (too deep or too
    shallow) wakeups (Kajetan Puchalski).
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Merge tag 'pm-5.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These are ARM cpufreq updates and operating performance points (OPP)
  updates plus one cpuidle update adding a new trace point.

  Specifics:

   - Fix return error code in mtk_cpu_dvfs_info_init (Yang Yingliang).

   - Minor cleanups and support for new boards for Qcom cpufreq drivers
     (Bryan O'Donoghue, Konrad Dybcio, Pierre Gondois, and Yicong Yang).

   - Fix sparse warnings for Tegra cpufreq driver (Viresh Kumar).

   - Make dev_pm_opp_set_regulators() accept NULL terminated list
     (Viresh Kumar).

   - Add dev_pm_opp_set_config() and friends and migrate other users and
     helpers to using them (Viresh Kumar).

   - Add support for multiple clocks for a device (Viresh Kumar and
     Krzysztof Kozlowski).

   - Configure resources before adding OPP table for Venus (Stanimir
     Varbanov).

   - Keep reference count up for opp->np and opp_table->np while they
     are still in use (Liang He).

   - Minor OPP cleanups (Viresh Kumar and Yang Li).

   - Add a trace event for cpuidle to track missed (too deep or too
     shallow) wakeups (Kajetan Puchalski)"

* tag 'pm-5.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (55 commits)
  cpuidle: Add cpu_idle_miss trace event
  venus: pm_helpers: Fix warning in OPP during probe
  OPP: Don't drop opp->np reference while it is still in use
  OPP: Don't drop opp_table->np reference while it is still in use
  cpufreq: tegra194: Staticize struct tegra_cpufreq_soc instances
  dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM6375 compatible
  dt-bindings: opp: Add msm8939 to the compatible list
  dt-bindings: opp: Add missing compat devices
  dt-bindings: opp: opp-v2-kryo-cpu: Fix example binding checks
  cpufreq: Change order of online() CB and policy->cpus modification
  cpufreq: qcom-hw: Remove deprecated irq_set_affinity_hint() call
  cpufreq: qcom-hw: Disable LMH irq when disabling policy
  cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabled
  cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.h
  cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()
  OPP: Remove dev{m}_pm_opp_of_add_table_noclk()
  PM / devfreq: tegra30: Register config_clks helper
  OPP: Allow config_clks helper for single clk case
  OPP: Provide a simple implementation to configure multiple clocks
  OPP: Assert clk_count == 1 for single clk helpers
  ...
2022-08-08 14:29:00 -07:00
Linus Torvalds
b44f2fd879 drm for 5.20/6.0
New driver:
 - logicvc
 
 vfio:
 - use aperture API
 
 core:
 - of: Add data-lane helpers and convert drivers
 - connector: Remove deprecated ida_simple_get()
 
 media:
 - Add various RGB666 and RGB888 format constants
 
 panel:
 - Add HannStar HSD101PWW
 - Add ETML0700Y5DHA
 
 dma-buf:
 - add sync-file API
 - set dma mask for udmabuf devices
 
 fbcon:
 - Improve scrolling performance
 - Sanitize input
 
 fbdev:
 - device unregistering fixes
 - vesa: Support COMPILE_TEST
 - Disable firmware-device registration when first native driver loads
 
 aperture:
 - fix segfault during hot-unplug
 - export for use with other subsystems
 
 client:
 - use driver validated modes
 
 dp:
 - aux: make probing more reliable
 - mst: Read extended DPCD capabilities during system resume
 - Support waiting for HDP signal
 - Port-validation fixes
 
 edid:
 - CEA data-block iterators
 - struct drm_edid introduction
 - implement HF-EEODB extension
 
 gem:
 - don't use fb format non-existing planes
 
 probe-helper:
 - use 640x480 as displayport fallback
 
 scheduler:
 - don't kill jobs in interrupt context
 
 bridge:
 - Add support for i.MX8qxp and i.MX8qm
 - lots of fixes/cleanups
 - Add TI-DLPC3433
 - fy07024di26a30d: Optional GPIO reset
 - ldb: Add reg and reg-name properties to bindings, Kconfig fixes
 - lt9611: Fix display sensing;
 - tc358767: DSI/DPI refactoring and DSI-to-eDP support, DSI lane handling
 - tc358775: Fix clock settings
 - ti-sn65dsi83: Allow GPIO to sleep
 - adv7511: I2C fixes
 - anx7625: Fix error handling; DPI fixes; Implement HDP timeout via callback
 - fsl-ldb: Drop DE flip
 - ti-sn65dsi86: Convert to atomic modesetting
 
 amdgpu:
 - use atomic fence helpers in DM
 - fix VRAM address calculations
 - export CRTC bpc via debugfs
 - Initial devcoredump support
 - Enable high priority gfx queue on asics which support it
 - Adjust GART size on newer APUs for S/G display
 - Soft reset for GFX 11 / SDMA 6
 - Add gfxoff status query for vangogh
 - Fix timestamps for cursor only commits
 - Adjust GART size on newer APUs for S/G display
 - fix buddy memory corruption
 
 amdkfd:
 - MMU notifier fixes
 - P2P DMA support using dma-buf
 - Add available memory IOCTL
 - HMM profiler support
 - Simplify GPUVM validation
 - Unified memory for CWSR save/restore area
 
 i915:
 - General driver clean-up
 - DG2 enabling (still under force probe)
   - DG2 small BAR memory support
   - HuC loading support
   - DG2 workarounds
   - DG2/ATS-M device IDs added
 - Ponte Vecchio prep work and new blitter engines
 - add Meteorlake support
 - Fix sparse warnings
 - DMC MMIO range checks
 - Audio related fixes
 - Runtime PM fixes
 - PSR fixes
 - Media freq factor and per-gt enhancements
 - DSI fixes for ICL+
 - Disable DMC flip queue handlers
 - ADL_P voltage swing updates
 - Use more the VBT for panel information
 - Fix on Type-C ports with TBT mode
 - Improve fastset and allow seamless M/N changes
 - Accept more fixed modes with VRR/DMRRS panels
 - Disable connector polling for a headless SKU
 - ADL-S display PLL w/a
 - Enable THP on Icelake and beyond
 - Fix i915_gem_object_ggtt_pin_ww regression on old platforms
 - Expose per tile media freq factor in sysfs
 - Fix dma_resv fence handling in multi-batch execbuf
 - Improve on suspend / resume time with VT-d enabled
 - export CRTC bpc settings via debugfs
 
 msm:
 - gpu: a619 support
 - gpu: Fix for unclocked GMU register access
 - gpu: Devcore dump enhancements
 - client utilization via fdinfo support
 - fix fence rollover issue
 - gem: Lockdep false-positive warning fix
 - gem: Switch to pfn mappings
 - WB support on sc7180
 - dp: dropped custom bulk clock implementation
 - fix link retraining on resolution change
 - hdmi: dropped obsolete GPIO support
 
 tegra:
 - context isolation for host1x engines
 - tegra234 soc support
 
 mediatek:
 - add vdosys0/1 for mt8195
 - add MT8195 dp_intf driver
 
 exynos:
 - Fix resume function issue of exynos decon driver by calling
   clk_disable_unprepare() properly if clk_prepare_enable() failed.
 
 nouveau:
 - set of misc fixes/cleanups
 - display cleanups
 
 gma500:
 - Cleanup connector I2C handling
 
 hyperv:
 - Unify VRAM allocation of Gen1 and Gen2
 
 meson:
 - Support YUV422 output; Refcount fixes
 
 mgag200:
 - Support damage clipping
 - Support gamma handling
 - Protect concurrent HW access
 - Fixes to connector
 - Store model-specific limits in device-info structure
 - fix PCI register init
 
 panfrost:
 - Valhall support
 
 r128:
 - Fix bit-shift overflow
 
 rockchip:
 - Locking fixes in error path
 
 ssd130x:
 - Fix built-in linkage
 
 udl:
 - Always advertize VGA connector
 
 ast:
 - Support multiple outputs
 - fix black screen on resume
 
 sun4i:
 - HDMI PHY cleanups
 
 vc4:
 - Add support for BCM2711
 
 vkms:
 - Allocate output buffer with vmalloc()
 
 mcde:
 - Fix ref-count leak
 
 mxsfb/lcdif:
 - Support i.MX8MP LCD controller
 
 stm/ltdc:
 - Support dynamic Z order
 - Support mirroring
 
 ingenic:
 - Fix display at maximum resolution
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Merge tag 'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Highlights:

   - New driver for logicvc - which is a display IP core.

   - EDID parser rework to add new extensions

   - fbcon scrolling improvements

   - i915 has some more DG2 work but not enabled by default, but should
     have enough features for userspace to work now.

  Otherwise it's lots of work all over the place. Detailed summary:

  New driver:
   - logicvc

  vfio:
   - use aperture API

  core:
   - of: Add data-lane helpers and convert drivers
   - connector: Remove deprecated ida_simple_get()

  media:
   - Add various RGB666 and RGB888 format constants

  panel:
   - Add HannStar HSD101PWW
   - Add ETML0700Y5DHA

  dma-buf:
   - add sync-file API
   - set dma mask for udmabuf devices

  fbcon:
   - Improve scrolling performance
   - Sanitize input

  fbdev:
   - device unregistering fixes
   - vesa: Support COMPILE_TEST
   - Disable firmware-device registration when first native driver loads

  aperture:
   - fix segfault during hot-unplug
   - export for use with other subsystems

  client:
   - use driver validated modes

  dp:
   - aux: make probing more reliable
   - mst: Read extended DPCD capabilities during system resume
   - Support waiting for HDP signal
   - Port-validation fixes

  edid:
   - CEA data-block iterators
   - struct drm_edid introduction
   - implement HF-EEODB extension

  gem:
   - don't use fb format non-existing planes

  probe-helper:
   - use 640x480 as displayport fallback

  scheduler:
   - don't kill jobs in interrupt context

  bridge:
   - Add support for i.MX8qxp and i.MX8qm
   - lots of fixes/cleanups
   - Add TI-DLPC3433
   - fy07024di26a30d: Optional GPIO reset
   - ldb: Add reg and reg-name properties to bindings, Kconfig fixes
   - lt9611: Fix display sensing;
   - tc358767: DSI/DPI refactoring and DSI-to-eDP support, DSI lane handling
   - tc358775: Fix clock settings
   - ti-sn65dsi83: Allow GPIO to sleep
   - adv7511: I2C fixes
   - anx7625: Fix error handling; DPI fixes; Implement HDP timeout via callback
   - fsl-ldb: Drop DE flip
   - ti-sn65dsi86: Convert to atomic modesetting

  amdgpu:
   - use atomic fence helpers in DM
   - fix VRAM address calculations
   - export CRTC bpc via debugfs
   - Initial devcoredump support
   - Enable high priority gfx queue on asics which support it
   - Adjust GART size on newer APUs for S/G display
   - Soft reset for GFX 11 / SDMA 6
   - Add gfxoff status query for vangogh
   - Fix timestamps for cursor only commits
   - Adjust GART size on newer APUs for S/G display
   - fix buddy memory corruption

  amdkfd:
   - MMU notifier fixes
   - P2P DMA support using dma-buf
   - Add available memory IOCTL
   - HMM profiler support
   - Simplify GPUVM validation
   - Unified memory for CWSR save/restore area

  i915:
   - General driver clean-up
   - DG2 enabling (still under force probe)
       - DG2 small BAR memory support
       - HuC loading support
       - DG2 workarounds
       - DG2/ATS-M device IDs added
   - Ponte Vecchio prep work and new blitter engines
   - add Meteorlake support
   - Fix sparse warnings
   - DMC MMIO range checks
   - Audio related fixes
   - Runtime PM fixes
   - PSR fixes
   - Media freq factor and per-gt enhancements
   - DSI fixes for ICL+
   - Disable DMC flip queue handlers
   - ADL_P voltage swing updates
   - Use more the VBT for panel information
   - Fix on Type-C ports with TBT mode
   - Improve fastset and allow seamless M/N changes
   - Accept more fixed modes with VRR/DMRRS panels
   - Disable connector polling for a headless SKU
   - ADL-S display PLL w/a
   - Enable THP on Icelake and beyond
   - Fix i915_gem_object_ggtt_pin_ww regression on old platforms
   - Expose per tile media freq factor in sysfs
   - Fix dma_resv fence handling in multi-batch execbuf
   - Improve on suspend / resume time with VT-d enabled
   - export CRTC bpc settings via debugfs

  msm:
   - gpu: a619 support
   - gpu: Fix for unclocked GMU register access
   - gpu: Devcore dump enhancements
   - client utilization via fdinfo support
   - fix fence rollover issue
   - gem: Lockdep false-positive warning fix
   - gem: Switch to pfn mappings
   - WB support on sc7180
   - dp: dropped custom bulk clock implementation
   - fix link retraining on resolution change
   - hdmi: dropped obsolete GPIO support

  tegra:
   - context isolation for host1x engines
   - tegra234 soc support

  mediatek:
   - add vdosys0/1 for mt8195
   - add MT8195 dp_intf driver

  exynos:
   - Fix resume function issue of exynos decon driver by calling
     clk_disable_unprepare() properly if clk_prepare_enable() failed.

  nouveau:
   - set of misc fixes/cleanups
   - display cleanups

  gma500:
   - Cleanup connector I2C handling

  hyperv:
   - Unify VRAM allocation of Gen1 and Gen2

  meson:
   - Support YUV422 output; Refcount fixes

  mgag200:
   - Support damage clipping
   - Support gamma handling
   - Protect concurrent HW access
   - Fixes to connector
   - Store model-specific limits in device-info structure
   - fix PCI register init

  panfrost:
   - Valhall support

  r128:
   - Fix bit-shift overflow

  rockchip:
   - Locking fixes in error path

  ssd130x:
   - Fix built-in linkage

  udl:
   - Always advertize VGA connector

  ast:
   - Support multiple outputs
   - fix black screen on resume

  sun4i:
   - HDMI PHY cleanups

  vc4:
   - Add support for BCM2711

  vkms:
   - Allocate output buffer with vmalloc()

  mcde:
   - Fix ref-count leak

  mxsfb/lcdif:
   - Support i.MX8MP LCD controller

  stm/ltdc:
   - Support dynamic Z order
   - Support mirroring

  ingenic:
   - Fix display at maximum resolution"

* tag 'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm: (1480 commits)
  drm/amd/display: Fix a compilation failure on PowerPC caused by FPU code
  drm/amdgpu: enable support for psp 13.0.4 block
  drm/amdgpu: add files for PSP 13.0.4
  drm/amdgpu: add header files for MP 13.0.4
  drm/amdgpu: correct RLC_RLCS_BOOTLOAD_STATUS offset and index
  drm/amdgpu: send msg to IMU for the front-door loading
  drm/amdkfd: use time_is_before_jiffies(a + b) to replace "jiffies - a > b"
  drm/amdgpu: fix hive reference leak when reflecting psp topology info
  drm/amd/pm: enable GFX ULV feature support for SMU13.0.0
  drm/amd/pm: update driver if header for SMU 13.0.0
  drm/amdgpu: move mes self test after drm sched re-started
  drm/amdgpu: drop non-necessary call trace dump
  drm/amdgpu: enable VCN cg and JPEG cg/pg
  drm/amdgpu: vcn_4_0_2 video codec query
  drm/amdgpu: add VCN_4_0_2 firmware support
  drm/amdgpu: add VCN function in NBIO v7.7
  drm/amdgpu: fix a vcn4 boot poll bug in emulation mode
  drm/amd/amdgpu: add memory training support for PSP_V13
  drm/amdkfd: remove an unnecessary amdgpu_bo_ref
  drm/amd/pm: Add get_gfx_off_status interface for yellow carp
  ...
2022-08-03 19:52:08 -07:00
Rafael J. Wysocki
f6e0b468da OPP updates for 5.20-rc1
- Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh
   Kumar).
 
 - Add dev_pm_opp_set_config() and friends and migrate other
   users/helpers to using them (Viresh Kumar).
 
 - Add support for multiple clocks for a device (Viresh Kumar and
   Krzysztof Kozlowski).
 
 - Configure resources before adding OPP table for Venus (Stanimir
   Varbanov).
 
 - Keep reference count up for opp->np and opp_table->np while they are
   still in use (Liang He).
 
 - Minor cleanups (Viresh Kumar and Yang Li).
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Merge tag 'opp-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Pull operating performance points (OPP) updates for 5.20-rc1 from Viresh
Kumar:

"- Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh
   Kumar).

 - Add dev_pm_opp_set_config() and friends and migrate other
   users/helpers to using them (Viresh Kumar).

 - Add support for multiple clocks for a device (Viresh Kumar and
   Krzysztof Kozlowski).

 - Configure resources before adding OPP table for Venus (Stanimir
   Varbanov).

 - Keep reference count up for opp->np and opp_table->np while they are
   still in use (Liang He).

 - Minor cleanups (Viresh Kumar and Yang Li)."

* tag 'opp-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (43 commits)
  venus: pm_helpers: Fix warning in OPP during probe
  OPP: Don't drop opp->np reference while it is still in use
  OPP: Don't drop opp_table->np reference while it is still in use
  OPP: Remove dev{m}_pm_opp_of_add_table_noclk()
  PM / devfreq: tegra30: Register config_clks helper
  OPP: Allow config_clks helper for single clk case
  OPP: Provide a simple implementation to configure multiple clocks
  OPP: Assert clk_count == 1 for single clk helpers
  OPP: Add key specific assert() method to key finding helpers
  OPP: Compare bandwidths for all paths in _opp_compare_key()
  OPP: Allow multiple clocks for a device
  dt-bindings: opp: accept array of frequencies
  OPP: Make dev_pm_opp_set_opp() independent of frequency
  OPP: Reuse _opp_compare_key() in _opp_add_static_v2()
  OPP: Remove rate_not_available parameter to _opp_add()
  OPP: Use consistent names for OPP table instances
  OPP: Use generic key finding helpers for bandwidth key
  OPP: Use generic key finding helpers for level key
  OPP: Add generic key finding helpers and use them for freq APIs
  OPP: Remove dev_pm_opp_find_freq_ceil_by_volt()
  ...
2022-08-03 17:49:38 +02:00
Viresh Kumar
87686cc845 OPP: Make dev_pm_opp_set_regulators() accept NULL terminated list
Make dev_pm_opp_set_regulators() accept a NULL terminated list of names
instead of making the callers keep the two parameters in sync, which
creates an opportunity for bugs to get in.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Steven Price <steven.price@arm.com> # panfrost
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2022-07-08 11:26:44 +05:30
Dmitry Osipenko
9fc33eaaa9 drm/panfrost: Fix shrinker list corruption by madvise IOCTL
Calling madvise IOCTL twice on BO causes memory shrinker list corruption
and crashes kernel because BO is already on the list and it's added to
the list again, while BO should be removed from the list before it's
re-added. Fix it.

Cc: stable@vger.kernel.org
Fixes: 013b651013 ("drm/panfrost: Add madvise and shrinker support")
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630200601.1884120-3-dmitry.osipenko@collabora.com
2022-07-04 16:38:00 +01:00
Daniel Vetter
0f95ee9a0c drm-misc-next for 5.20:
UAPI Changes:
 
  * connector: export bpc limits in debugfs
 
  * dma-buf: Print buffer name in debugfs
 
 Cross-subsystem Changes:
 
  * dma-buf: Improve dma-fence handling; Cleanups
 
  * fbdev: Device-unregistering fixes
 
 Core Changes:
 
  * client: Only use driver-validated modes to avoid blank screen
 
  * dp-aux: Make probing more reliable; Small fixes
 
  * edit: CEA data-block iterators; Introduce struct drm_edid; Many cleanups
 
  * gem: Don't use framebuffer format's non-exising color planes
 
  * probe-helper: Use 640x480 as DisplayPort fallback; Refactoring
 
  * scheduler: Don't kill jobs in interrupt context
 
 Driver Changes:
 
  * amdgpu: Use atomic fence helpers in DM; Fix VRAM address calculation;
    Export CRTC bpc settings via debugfs
 
  * bridge: Add TI-DLPC3433;  anx7625: Fixes;  fy07024di26a30d: Optional
    GPIO reset;  icn6211: Cleanups;  ldb: Add reg and reg-name properties
    to bindings, Kconfig fixes;  lt9611: Fix display sensing;  lt9611uxc:
    Fixes;  nwl-dsi: Fixes;  ps8640: Cleanups;  st7735r: Fixes;  tc358767:
    DSI/DPI refactoring and DSI-to-eDP support, Fixes; ti-sn65dsi83:
    Fixes;
 
  * gma500: Cleanup connector I2C handling
 
  * hyperv: Unify VRAM allocation of Gen1 and Gen2
 
  * i915: export CRTC bpc settings via debugfs
 
  * meson: Support YUV422 output; Refcount fixes
 
  * mgag200: Support damage clipping; Support gamma handling; Protect
    concurrent HW access; Fixes to connector; Store model-specific limits
    in device-info structure; Cleanups
 
  * nouveau: Fixes and Cleanups
 
  * panel: Kconfig fixes
 
  * panfrost: Valhall support
 
  * r128: Fix bit-shift overflow
 
  * rockchip: Locking fixes in error path; Minor cleanups
 
  * ssd130x: Fix built-in linkage
 
  * ttm: Cleanups
 
  * udl; Always advertize VGA connector
 
  * fbdev/vesa: Support COMPILE_TEST
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Merge tag 'drm-misc-next-2022-06-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.20:

UAPI Changes:

 * connector: export bpc limits in debugfs

 * dma-buf: Print buffer name in debugfs

Cross-subsystem Changes:

 * dma-buf: Improve dma-fence handling; Cleanups

 * fbdev: Device-unregistering fixes

Core Changes:

 * client: Only use driver-validated modes to avoid blank screen

 * dp-aux: Make probing more reliable; Small fixes

 * edit: CEA data-block iterators; Introduce struct drm_edid; Many cleanups

 * gem: Don't use framebuffer format's non-exising color planes

 * probe-helper: Use 640x480 as DisplayPort fallback; Refactoring

 * scheduler: Don't kill jobs in interrupt context

Driver Changes:

 * amdgpu: Use atomic fence helpers in DM; Fix VRAM address calculation;
   Export CRTC bpc settings via debugfs

 * bridge: Add TI-DLPC3433;  anx7625: Fixes;  fy07024di26a30d: Optional
   GPIO reset;  icn6211: Cleanups;  ldb: Add reg and reg-name properties
   to bindings, Kconfig fixes;  lt9611: Fix display sensing;  lt9611uxc:
   Fixes;  nwl-dsi: Fixes;  ps8640: Cleanups;  st7735r: Fixes;  tc358767:
   DSI/DPI refactoring and DSI-to-eDP support, Fixes; ti-sn65dsi83:
   Fixes;

 * gma500: Cleanup connector I2C handling

 * hyperv: Unify VRAM allocation of Gen1 and Gen2

 * i915: export CRTC bpc settings via debugfs

 * meson: Support YUV422 output; Refcount fixes

 * mgag200: Support damage clipping; Support gamma handling; Protect
   concurrent HW access; Fixes to connector; Store model-specific limits
   in device-info structure; Cleanups

 * nouveau: Fixes and Cleanups

 * panel: Kconfig fixes

 * panfrost: Valhall support

 * r128: Fix bit-shift overflow

 * rockchip: Locking fixes in error path; Minor cleanups

 * ssd130x: Fix built-in linkage

 * ttm: Cleanups

 * udl; Always advertize VGA connector

 * fbdev/vesa: Support COMPILE_TEST

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YqBtumw05JZDEZE2@linux-uq9g
2022-06-15 19:12:17 +02:00
Dave Airlie
88bfb6dbb6 A use-after-free fix for panfrost, and a DT invalid configuration fix for
ti-sn65dsi83
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Merge tag 'drm-misc-fixes-2022-05-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A use-after-free fix for panfrost, and a DT invalid configuration fix for
ti-sn65dsi83

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220526090532.nvhlmwev5qgln3nb@houat
2022-06-10 13:12:36 +10:00
Maxime Ripard
6e2b347d42 Linux 5.19-rc1
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Merge v5.19-rc1 into drm-misc-fixes

Let's kick-off the start of the 5.19 fix cycle

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-06-08 19:11:27 +02:00
Alyssa Rosenzweig
952cd97450 drm/panfrost: Add arm,mali-valhall-jm compatible
The most important Valhall-specific quirks have been handled, so add the
Valhall compatible and probe.

v2: Use arm,mali-valhall-jm compatible.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220525145754.25866-10-alyssa.rosenzweig@collabora.com
2022-05-26 09:53:40 -04:00