sched: ems: ontime: Change new entity's initial ontime load policy.

Change-Id: I4688cd1fb459ca74092b386356843b37d361b07a
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Allow to migrate to active core within coverage ratio.

Change-Id: I501963c396772bdd5051e7c69e8d642bcbdfac59
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Don't allow to down-migrate heaviest task.

Change-Id: I0daf9e82d69438155ce80c33a6a4709523462491
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Use fit cpus when ontime migration.

Change-Id: Icea69935638628cb8dc41d38a47a9bc4046110b0
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Use fit cpus when ontime task wake-up.

Change-Id: I143735486cb003fea16d80144bb67ffaeb2bf01e
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Add API to find fit cpus for heavy task.

Change-Id: I833b0c6997c40eb239836ba54385d3acb782b9ec
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Modify message of ontime trace log.

Change-Id: I5560fd905fa03b77e4f609fc7d5d983b0405ac8c
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Remove distinction between ontime and normal task.

Change-Id: I343feff2d7db0d97d3813b570193f1ee8e3af93e
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Remove min_residency at ontime condition.

Change-Id: I2263bff40f49ff9c9f112aac1db0546330c1447f
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Modify sysfs node for new structure.

Change-Id: Iaf7001616dde4f95f126e2021e4efd42b90fcc69
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Modify ontime condition structure.

- Modify the ontime condition to have each coregroup individually
- Use list_head struct instead of ontime_cond *next

Change-Id: I0e81c10af914a82d09ceedaf08975efdfb9f7e3a
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: ontime: Code clean-up for readability.

Change-Id: I93097d20d27b7899526b3569aaf99378ff6e1856
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ehmp: Check whether curr_task is perfer_perf when searching heavy task.

Change-Id: Ic9cd388cc173fdca6c43ec9dec0b4db6c16df305
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

Revert "sched: ems: Resolve prevent issue of ontime"

This reverts commit 7798e78210369f2f81eb4d65cd1bb5e5f301efb8.

Change-Id: I17d22ed1d1d0d347e64f2d33ebc75e4ac31a00f4

sched: ems: Resolve prevent issue of ontime

Change-Id: I6e1a00d806def40455d716d650cc813fc1b5b04d
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Use snprintf to fix buffer overflow.

Change-Id: Ieebd6ca02aec141ca3eeb0366cf88778d94911ea
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

[COMMON] sched/rt: remove the useless rq lock

in find_lock_lowest_rq(). In an aging test, rq lock is unbalanced,
because the rq lock is released in double locking routine in
this function from rto_push_irq_work_func.

Change-Id: I338bc98fd4053aefcf8fdd4a6e991ce240d649ec
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: repair the core selecting algorithm

including,
* reworking a rq-selecting algorithm rq for fluid rt
* fix the wrong tracing info

Change-Id: If3d9695252d019fd277a80d9d4314259fa6ced16
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: add the sync flag into RT

to fulfill the cache hot benefit

Change-Id: I0bea23664b351a60b4aea3306be3d87d31efca3a
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: fix the problem of long stay

in faster CPU domain.

Change-Id: Icc0c64a945efff9bf33753224ca16c9086e9b7d5
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

sched: ems: remove exynos_fit_idlest_group()

Since exynos_proper_cpu() is implemented, exynos no longer calls
find_idlest_group(). Therefore, exynos_fit_idlest_group() is no
longer needed.

Change-Id: Ia04391c3406f8cfe0215fc20ea966b4a1d8c8228
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sche: ems: implement proper_cpu

exynos_proper_cpu() is called last in exynos wakeup balance. This is
called when the task does not require preformance, and the prev cpu
is overutilized and does not select the energy cpu.

Since balancing is necessary, the task is sent to the cpu with the
smallest utilization in order to minimize power consumption.

Change-Id: I5ef1a3b6d295763e7c4dc0df9f871d7ef05f8c9a
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

trace: ems: remove unused event and modify name

Change-Id: I0b5ed6ef6b0adcdf377f0bc915484e0187d3c162
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: set cpu capacity for simplified energy model

We added the SIMPLIFIED_ENERGY_TABLE config to prevent conflicts
with existing energy model. If this config is enabled, the codes for
legacy energy model is unactivated.

Change-Id: I9b6d48334b32a50fd4cc8029d8eab85adb623a9d
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[COMMON] sched/rt: remove useless retrying core selection

due to the RT throttling in CPU Hotplug in/out

Change-Id: I9b82bdc511cfb49d3cb9b538d4fec6917624afc6
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: add the online cpu condition

Change-Id: I32df8e8e32a09b4613108e99e8ad3cfaa5bfcd80
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: add a trace point for FRT algorithm

for optimizing the system performance

Change-Id: I70c7a5f5c06b84e40689030e2186faee14a75c26
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched/rt: enforcing the rt task serialization

to maximize the cache hot benifit.

Change-Id: Idf4854b442bcefe67f6ed7488d154a328d429c44
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

Revert "[9820] sched: core: fix bug that rt could not be binded to little"

This reverts commit 5933bc155713c86efe99c096ca7ff7421ca53f46

Change-Id: Ib4d852432562747b74472f2dd2c32abd8ea5d4f3

sched: ems: remove ehmp.c

EHMP(Exynos HMP) was replaced by EMS(Exynos Mobile Scheduler).
Delete existing ehmp.c.

Change-Id: I437b4b5f0572525f4f692c4a8242c5525f3e2140
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: move active balance to ems

Move the active balance related code from ehmp.c to core.c of ems.
ehmp.c will be removed.

Change-Id: I6a01db308b3c889f01da642fa3b96df93dc6432f
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: integrate common API

Commonly used APIs are delcared redundantly in several files in EMS.
It is integrated into core.c.

Change-Id: Ic42d508d1083f9321c856452f50731c2a9fa9adf
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: seperate task util initiialization

Seperate code related to task util initialization to facilitate
code management.

Change-Id: I86244fe3169467b74baca6a34b968ef04c495586
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[9820] sched: core: fix bug that rt could not be binded to little

Current rt little binding code is working
when target task is on runqueue. Remove this condition
to all rt tasks bind to little.

Change-Id: I2f1883e2e8dffef25920848f6ef87b38a231ff0c
Signed-off-by: Youngtae Lee <yt0729.lee@samsung.com>

[COMMON] sched/rt : fix unnecessary operation for PELT

Change-Id: I3579565f8025b151b303862a710374963197731e
Signed-off-by: Soohyun Kim <soohyuni.kim@samsung.com>

sched: ems: separate energy coefficient cpu selection

Separate code related to energy conefficient cpu selection to
facilitate code management.

Change-Id: I0a18490da3f178483108c6cb8c34b904cbaca3d6
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: build simplified energy table

The simplified energy table only considers the compute capacity and power
of the cpu. When the frequency domain is registered, an energy table is
created dynamically.

Change-Id: Ifbd466dbd6ba0e496f98f17e3dd3b2850ab3ceea
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: parsing energy data to build energy table

To build energy table, parse the mips and coefficient from device tree.

Change-Id: If7db3c4d67cb62a983cccd452ce2546feabe5e27
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: avoid to access empty energy table

Accessing the energy table without allocation cause a NULL pointer
exception. energy_table.nr_states have values after the energy table
created, so check the nr_states to avoid problem.

Change-Id: I90d6c9b8ff5ac0eb67b92ab0bb57b911d8f65091
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[COMMON] sched: ems: Modify trace log name of EMS feature

Change-Id: I8641050a38bccaa26bac3016e52c10a223e14353
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: support find energy efficient cpu

Based on the task utilization, it is a function to find the cpu with
the least energy efficiency considering cpu cpacity and power.

Change-Id: I28c333f8f6881ea4aaaf57361cc612975dc35c26
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: renewal prefer perf

Modify the structure of prefer perf to work with PCF

Change-Id: Ic26874ecd074645031ecac933999f5e488f4f2b1
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: renewal global boost

Modify the structure of global boost to work with PCF. Accordingly,
the range of value is changed from 0~100 to 0/1.

Change-Id: I2a5d35cfeb69a9b9ca9d5e1d043f49ee4d3d4ff9
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ems: support PCF(Performance CPU Finder)

PCF(Performance CPU Finder) provides the ability to find the highest
performance cpu at any given moment. Currently, it is composed of a
selection algorithm based on distributed processing.

Change-Id: Iaaaedd12fee9fe0829db9dd1f7cb72993581a51e
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[COMMON] sched: ems/st_addon: Add core assignment policy for prefer_idle task.

Change-Id: I9179e123b6a04b5ead9605a61e0277c9c9949882
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

[COMMON] sched: ems: New function to check whether task make cpu overutilize

The lbt_bring_overutilize function checks whether the CPU will be overutilized
at all levels when a task is added to the CPU.

Change-Id: Idbeb0f06f65ab7a807d85f4e76fc1fb8931d12f7
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Move lbt/ontime node from ehmp to ems

Change-Id: I3422985e2cd8f2d1235f983934af5b401326a7b9
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Disable ontime feature if ontime node isn't in DT

Change-Id: If7440f36447b73c6e7b8d77bf048b249764bc681
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Use default ratio if lbt node isn't in DT

Change-Id: I50c6b0547788eaf329eb6cabb311288f4863b3ef
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Separate On-time feature into ontime.c

Change-Id: I8afdbca1a3c4a042784544fd062913c4f8bbedee
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: fair: ontime task must wake up from specified target_cpu

Change-Id: I49b6cbe6d77b1a4887d50dc0c65206cccaf51f71
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched/rt: introduce FRT scheduler

Cpu selection logic change for fluid scheduling.
Fluid RT Scheduler consider task load for core selection
and it can victim higher priority rt task.
because Fluid RT scheduler make a decision through
weighted load by priority.

Change-Id: I40c3c93d4fcf985b0002796748037cacd04e813e
Signed-off-by: Johnlay Park <jonglae.park@samsung.com>

[COMMON] sched: ems: Separate LBT feature into lbt.c

Change-Id: Id4b7b40f06418d4d1c46c3170999942ccb895f5b
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Modify to create ontime sysfs node dynamically

Change-Id: I15a1727ae54f45686e6d61f3e4159a841b39ba46
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Modify to create lbt sysfs node dynamically

Change-Id: I9553139a23fe807beb5ee4ff47d7f4b31813850d
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ems: Create sysfs directory of ontime/lbt

Change-Id: I68162de1f59ddc5d29efce3350a90357023b9804
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

sched: ems: add wakeup balance

Wakeup balance is a scheme that determines which cpu to assign waking
up task or new task to. In fact, it corresponds to the main stream of
EMS. The current patch is skeleton code, and each function will be
reflected.

Change-Id: Ib176e03c94af2d45476bb8b9747b53167e8ff2a9
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: change exynos scheduler name from EHMP to EMS

Rename Exynos scheduler. Existing EHMP(Exynos HMP) was a scheduler
considering only HMP chipset. EMS(Exynos Mobile Scheduler) will support
all chipsets regardless of cluster and core configuration.

Change-Id: I2802ddcd9e401a0d92f9c98656b5e591d429d6ce
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

sched: ehmp: fix build error when ehmp was disabled.

Change-Id: If7ec0ffe282781ab3bb0d5a845a98603aad66725
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

sched: ems: build skeleton for EMS

Change-Id: I0e79d33aa1e5f64a9621773916d0546c1b0c8d20
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[COMMON] sched: ems: Fix bug of ontime_task_wakeup

Despite not finding target_cpu, there was a hole to include the task in ontime.
The code to defenc it is added.

Change-Id: Ibf6aec93eedd2d7f8c9f45e2e4acc26705733838
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Add trace log of ontime_task_wakeup

Change-Id: I71ae8e7e8dab77f9771808676c1a14fe79a4c6e7
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Modify ontime_task_wakeup to remove topology dependencies

Change-Id: Iccc9abce05adc6e0d15264eafa1bd6001c707481
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Modify cpu of ontime_entity should be mangaged

Change-Id: I6c2c23e5117d387f8deb9d7995a7377174a06e80
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Refactoring On-time feature to remove topology dependencies

Change-Id: I0112dd25891af4c4010444dca890b1fb38fdb6a7
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Add trace log of lbt_overutilized

Change-Id: I6b6e1ef69679de27b14eee7c8629e760a1fe8c98
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: fair: Support improved LBT feature

Change-Id: Ifc2b9e58a43e41128bde7a2c92e897684c25aecf
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Modify need_active_balance to use lbt_overutilized

Change-Id: I192607e7f51f2125241728cbbeb33f0c2c707c76
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: ehmp: Refactoring LBT feature to remove topology dependencies

Change-Id: I1d59cce214221bfe64a48c2ff34bb14ad6e4c34f
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>

[COMMON] sched: fair/ehmp: Add to estimate core/cluster power down.

after moving task, previous cpu/cluster can be powered down.
so it should be consider it when idle power was calculated.

Change-Id: I13d954a1640940a7be93d0429248be8802fd615c
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

[COMMON] sched: fair/ehmp: Consider cpu capacity when idlest group finds.

Change-Id: I2f168aced04ade3321adcd3408ce2da344d4ab3b
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

sched: ehmp: Add to select initial util type for new task.

Change-Id: Idd792099fb636585f2d620ae7fd3f8405cec142f
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

sched: ehmp/fair: refactor exynos_select_cpu.

Change-Id: I496b0cd4e3890285d9f73b9d5c9f11b6b5c9e888
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

sched: fair/ems: Add schedtune_util_est

Change-Id: I0a0f1723356683829ce709ec750f4f013aa1c75b
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

[COMMON] sched: ehmp: support EHMP(Exynos HMP)

Change-Id: Ie7ee8a84ed0fdc3a62d10a5b55488477edcdba7f
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

[RAMEN9610-14121][COMMON] sched: cpufreq_schedutil: add irq_work_sync to wait completion

Change-Id: I3e60ee16bebeecc7e0731c87a3ca23058f20fa71
Signed-off-by: Sangkyu Kim <skwith.kim@samsung.com>

sched: schedutil: remove syncronize_rcu for fast hp

Change-Id: I3eebe5d8e12fc8fe5bc0810949c76883cb0564be
Signed-off-by: Youngtae Lee <yt0729.lee@samsung.com>

[COMMON] cpufreq: prevent to access NULL sg_policy

Change-Id: If6a532db0dc3a7fe7b3146fd48c03550d5e16fbd
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>

Reapply "cpufreq: schedutil: Always process remote callback with slow switching"

This reverts commit f7b03e2cd6f829a4fe1be4284ce5b9098eec4f74.

Revert "cpufreq: schedutil: move slow path from workqueue to SCHED_FIFO task"

This reverts commit 02a7b1ee3baa15a98b541d8cfd156bbe1a091c20.

Change-Id: Icd42a9920059daf44fdbefc0caff823f30ae2621

Revert "sched/cpufreq/schedutil: Fix error path mutex unlock"

This reverts commit 423f2c97a25392635216d349b85a4c2440de3a45.

Revert "cpufreq: schedutil: Rectify comment in sugov_irq_work() function"

This reverts commit d06e622d3d9206e6a2cc45a0f9a3256da8773ff4.

Revert "cpufreq: schedutil: irq-work and mutex are only used in slow path"

This reverts commit 21ef57297b15a49b0c4dd4e7135c1a08e9a29a1c.

Revert "cpufreq: schedutil: Don't restrict kthread to related_cpus unnecessarily"

This reverts commit e2cabe48c20efb174ce0c01190f8b9c5f3ea1d13.

Revert "[RAMEN9610-14121][COMMON] sched: cpufreq_schedutil: add irq_work_sync to wait completion"

This reverts commit 3841839571a0fe3ec956ab7d2c0e3c2b110f81cb.

Revert "cpufreq: schedutil: Always process remote callback with slow switching"

This reverts commit c49cbc19b31e069cb344921c7286d7549767d10e.

Revert "[COMMON] cpufreq: prevent to access NULL sg_policy"

This reverts commit 4abca8e361237ff81ac9e81aa8304544ee090050.

Revert "cpu/hotplug: Convert hotplug locking to percpu rwsem"

This reverts commit fc8dffd379ca5620664336eb895a426b42847558.

Change-Id: I08bcc9e3e0401b1db046ca2588922e24ca79c618

Revert "cpu/hotplug: Mute hotplug lockdep during init"

This reverts commit 2ae0dd162070fe7af11b468ce769e9c3b7a48f3b.

Revert "smp/hotplug: Differentiate the AP-work lockdep class between up and down"

This reverts commit 5f4b55e10645b7371322c800a5ec745cab487a6c.

Change-Id: Ia8ccd23a24d034ec382cb4ae4be8f1e05cbc48f8

fixup! [COMMON] usb: add USB driver for Exynos

fixup! [COMMON] usb: add USB driver for Exynos

iommu/exynos: Don't unconditionally steal bus ops

[ Upstream commit dc98b8480d8a68c2ce9aa28b9f0d714fd258bc0b ]

Removing the early device registration hook overlooked the fact that
it only ran conditionally on a compatible device being present in the
DT. With exynos_iommu_init() now running as an unconditional initcall,
problems arise on non-Exynos systems when other IOMMU drivers find
themselves unable to install their ops on the platform bus, or at worst
the Exynos ops get called with someone else's domain and all hell breaks
loose.

The global ops/cache setup could probably all now be triggered from the
first IOMMU probe, as with dma_dev assigment, but for the time being the
simplest fix is to resurrect the logic from commit a7b67cd5d9af
("iommu/exynos: Play nice in multi-platform builds") to explicitly check
the DT for the presence of an Exynos IOMMU before trying anything.

Fixes: 928055a01b3f ("iommu/exynos: Remove custom platform device registration code")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

BACKPORT: bpf: Use char in prog and map name

Instead of u8, use char for prog and map name.  It can avoid the
userspace tool getting compiler's signess warning.  The
bpf_prog_aux, bpf_map, bpf_attr, bpf_prog_info and
bpf_map_info are changed.

Change-Id: I599a8f1eccb0d63aa8d680b771fff1580c69cf75
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

bpf: Change bpf_obj_name_cpy() to better ensure map's name is init by 0

During get_info_by_fd, the prog/map name is memcpy-ed.  It depends
on the prog->aux->name and map->name to be zero initialized.

bpf_prog_aux is easy to guarantee that aux->name is zero init.

The name in bpf_map may be harder to be guaranteed in the future when
new map type is added.

Hence, this patch makes bpf_obj_name_cpy() to always zero init
the prog/map name.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Change-Id: Ib3bb6efbda0bd682e0cdad8617f587320d7dd397
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

BACKPORT: bpf: Add map_name to bpf_map_info

This patch allows userspace to specify a name for a map
during BPF_MAP_CREATE.

The map's name can later be exported to user space
via BPF_OBJ_GET_INFO_BY_FD.

Change-Id: I96b8d74b09c14f2413d421bba61cfa63d1730bc3
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

BACKPORT: bpf: Add name, load_time, uid and map_ids to bpf_prog_info

The patch adds name and load_time to struct bpf_prog_aux.  They
are also exported to bpf_prog_info.

The bpf_prog's name is passed by userspace during BPF_PROG_LOAD.
The kernel only stores the first (BPF_PROG_NAME_LEN - 1) bytes
and the name stored in the kernel is always \0 terminated.

The kernel will reject name that contains characters other than
isalnum() and '_'.  It will also reject name that is not null
terminated.

The existing 'user->uid' of the bpf_prog_aux is also exported to
the bpf_prog_info as created_by_uid.

The existing 'used_maps' of the bpf_prog_aux is exported to
the newly added members 'nr_map_ids' and 'map_ids' of
the bpf_prog_info.  On the input, nr_map_ids tells how
big the userspace's map_ids buffer is.  On the output,
nr_map_ids tells the exact user_map_cnt and it will only
copy up to the userspace's map_ids buffer is allowed.

Change-Id: I85270047bd427a4f00259541a08868df62168959
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

ARM64: defconfig: FCM required changes

* Solves the "There is an internal problem with your device.".

Change-Id: I06c77d1945a8995d2a6a0e173434129594db4c3d

UPSTREAM: security: selinux: allow per-file labeling for bpffs

Add support for genfscon per-file labeling of bpffs files. This allows
for separate permissions for different pinned bpf objects, which may
be completely unrelated to each other.

Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Steven Moreland <smoreland@google.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
(cherry picked from commit 4ca54d3d3022ce27170b50e4bdecc3a42f05dbdc)
[which is v5.6-rc1-10-g4ca54d3d3022 and thus already included in 5.10]
Bug: 200440527
Change-Id: I8234b9047f29981b8140bd81bb2ff070b3b0b843
(cherry picked from commit d52ac987ad2ae16ff313d7fb6185bc412cb221a4)

FROMLIST: security: selinux: allow per-file labelling for binderfs

This patch allows genfscon per-file labeling for binderfs.
This is required to have separate permissions to allow
access to binder, hwbinder and vndbinder devices which are
relocating to binderfs.

Acked-by: Jeff Vander Stoep <jeffv@google.com>
Acked-by: Mark Salyzyn <salyzyn@android.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Bug: 136497735
(cherry picked from commit 7a4b51947475a7f67e2bd06c4a4c768e2e64a975
git: //git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git
master)
Link: https://lore.kernel.org/patchwork/patch/1175776/
Change-Id: I105cc54b30ddd4120dc23a363bddc2f9d00e4dc4