Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-12-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-11-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-10-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-9-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-8-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-7-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-6-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-5-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-4-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-3-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Stop using fixed and IDs and covert the platform to use dynamic IDs for
the interconnect. This gives more flexibility and also allows us to drop
the .num_links member, saving from possible errors related to it being
not set or set incorrectly.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-2-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Declaring link_nodes as a double-pointer results in a syntax sugar in
the interconnect driver to typecast the array. Change the type of
link_nodes field to the array to remove the need for the extra typecast.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-rework-icc-v3-1-0575304c9624@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the Qualcomm interconnect buses found in Kaanapali
based platforms. The topology consists of several NoCs that are
controlled by a remote processor that collects the aggregated
bandwidth for each master-slave pairs.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251031-knp-interconnect-v4-2-568bba2cb3e5@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This enables QoS configuration for QNOC type device which can be found
on SA8775P platform. It enables QoS configuration for master ports with
predefined priority and urgency forwarding. This helps in prioritizing
the traffic originating from different interconnect masters at NOC.
The system may function normally without this feature. However, enabling
QoS helps optimize latency and bandwidth across subsystems like CPU, GPU,
and multimedia engines, which becomes important in high-throughput
scenarios. This is a feature aimed at performance enhancement to improve
system performance under concurrent workloads.
* icc-sa8775p
dt-bindings: interconnect: add reg and clocks properties to enable QoS on sa8775p
interconnect: qcom: sa8775p: enable QoS configuration
Link: https://lore.kernel.org/r/20251001073344.6599-1-odelu.kukatla@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Drop the QPIC interconnect and BCM nodes for the SDX75 SoC. The reason
is that this QPIC BCM resource is already defined as a RPMh clock in
clk-rpmh driver as like other SDX SoCs. So it is wrong to describe the
same resource in two different providers.
Also, without this series, the NAND driver fails to probe on SDX75 as
the interconnect sync state disables the QPIC nodes as there were no
clients voting for this ICC resource. However, the NAND driver had already
voted for this BCM resource through the clk-rpmh driver. Since both votes
come from Linux, RPMh was unable to distinguish between these two and ends
up disabling the resource during sync state.
* icc-sdx75
interconnect: qcom: sdx75: Drop QPIC interconnect and BCM nodes
dt-bindings: interconnect: qcom: Drop QPIC_CORE IDs
Link: https://lore.kernel.org/r/20250926-sdx75-icc-v2-0-20d6820e455c@oss.qualcomm.com>
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The lack of the interconnects for the USB2 host might result in the
register writes for the PHY not reaching the PHY and thus the PLL not
locking up, resulting in -EBUSY errors for the USB host on the platform.
Add missing interconnect link and add interconnect paths to the USB2
device.
* icc-msm8996
interconnect: qcom: msm8996: add missing link to SLAVE_USB_HS
arm64: dts: qcom: msm8996: add interconnect paths to USB2 controller
Link: https://lore.kernel.org/r/20251002-fix-msm8996-icc-v1-0-a36a05d1f869@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The icc_commit_set() function, used by the debugfs interface, checks
the validity of the global cur_path pointer using IS_ERR_OR_NULL().
However, in the specific case where cur_path is NULL, while
IS_ERR_OR_NULL(NULL) correctly evaluates to true, the subsequent call
to PTR_ERR(NULL) returns 0.
This causes the function to return a success code (0) instead of an
error, misleading the user into believing their bandwidth request was
successfully committed when, in fact, no operation was performed.
Fix this by adding an explicit check to return -EINVAL if cur_path is
NULL. This prevents silent failures and ensures that an invalid
operational sequence is immediately and clearly reported as an error.
Fixes: 770c69f037 ("interconnect: Add debugfs test client")
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Link: https://lore.kernel.org/r/20251010151447.2289779-1-visitorckw@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
As like other SDX SoCs, SDX75 SoC's QPIC BCM resource was modeled as a
RPMh clock in clk-rpmh driver. However, for SDX75, this resource was also
described as an interconnect and BCM node mistakenly. It is incorrect to
describe the same resource in two different providers, as it will lead to
votes from clients overriding each other.
Hence, drop the QPIC interconnect and BCM nodes and let the clients use
clk-rpmh driver to vote for this resource.
Without this change, the NAND driver fails to probe on SDX75, as the
interconnect sync state disables the QPIC nodes as there were no clients
voting for this ICC resource. However, the NAND driver had already voted
for this BCM resource through the clk-rpmh driver. Since both votes come
from Linux, RPMh was unable to distinguish between these two and ends up
disabling the QPIC resource during sync state.
Cc: stable@vger.kernel.org
Fixes: 3642b4e5cb ("interconnect: qcom: Add SDX75 interconnect provider driver")
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
[mani: dropped the reference to bcm_qp0, reworded description]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Lakshmi Sowjanya D <quic_laksd@quicinc.com> # on SDX75
Link: https://lore.kernel.org/r/20250926-sdx75-icc-v2-1-20d6820e455c@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
>From the initial submission the interconnect driver missed the link from
SNOC_PNOC to the USB 2 configuration space. Add missing link in order to
let the platform configure and utilize this path.
Fixes: 7add937f52 ("interconnect: qcom: Add MSM8996 interconnect provider driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251002-fix-msm8996-icc-v1-1-a36a05d1f869@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add interconnect dt-bindings and driver support for
Qualcomm's next gen compute SoC - Glymur.
* icc-glymur
dt-bindings: interconnect: document the RPMh Network-On-Chip interconnect in Glymur SoC
interconnect: qcom: icc-rpmh: increase MAX_PORTS to support four QoS ports
interconnect: qcom: add glymur interconnect provider driver
Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-0-596cca6b6015@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the Qualcomm interconnect buses found in glymur
based platforms. The topology consists of several NoCs that are
controlled by a remote processor that collects the aggregated
bandwidth for each master-slave pairs.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-3-596cca6b6015@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Update the MAX_PORTS value to 4 to program four QoS ports
available on the Glymur SoC's interconnect master node.
Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com>
Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-2-596cca6b6015@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Here is the big set of char/misc/iio and other smaller driver subsystems
for 6.17-rc1. It's a big set this time around, with the huge majority
being in the iio subsystem with new drivers and dts files being added
there.
Highlights include:
- IIO driver updates, additions, and changes making more code const
and cleaning up some init logic
- bus_type constant conversion changes
- misc device test functions added
- rust miscdevice minor fixup
- unused function removals for some drivers
- mei driver updates
- mhi driver updates
- interconnect driver updates
- Android binder updates and test infrastructure added
- small cdx driver updates
- small comedi fixes
- small nvmem driver updates
- small pps driver updates
- some acrn virt driver fixes for printk messages
- other small driver updates
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / IIO / other driver updates from Greg KH:
"Here is the big set of char/misc/iio and other smaller driver
subsystems for 6.17-rc1. It's a big set this time around, with the
huge majority being in the iio subsystem with new drivers and dts
files being added there.
Highlights include:
- IIO driver updates, additions, and changes making more code const
and cleaning up some init logic
- bus_type constant conversion changes
- misc device test functions added
- rust miscdevice minor fixup
- unused function removals for some drivers
- mei driver updates
- mhi driver updates
- interconnect driver updates
- Android binder updates and test infrastructure added
- small cdx driver updates
- small comedi fixes
- small nvmem driver updates
- small pps driver updates
- some acrn virt driver fixes for printk messages
- other small driver updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
binder: Use seq_buf in binder_alloc kunit tests
binder: Add copyright notice to new kunit files
misc: ti_fpc202: Switch to of_fwnode_handle()
bus: moxtet: Use dev_fwnode()
pc104: move PC104 option to drivers/Kconfig
drivers: virt: acrn: Don't use %pK through printk
comedi: fix race between polling and detaching
interconnect: qcom: Add Milos interconnect provider driver
dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC
mei: more prints with client prefix
mei: bus: use cldev in prints
bus: mhi: host: pci_generic: Add Telit FN990B40 modem support
bus: mhi: host: Detect events pointing to unexpected TREs
bus: mhi: host: pci_generic: Add Foxconn T99W696 modem
bus: mhi: host: Use str_true_false() helper
bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance.
bus: mhi: host: Fix endianness of BHI vector table
bus: mhi: host: pci_generic: Disable runtime PM for QDU100
bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640
dt-bindings: interconnect: qcom,msm8998-bwmon: Allow 'nonposted-mmio'
...
Add documentation and driver for the interconnect on the Milos SoC.
* icc-milos
dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC
interconnect: qcom: Add Milos interconnect provider driver
Link: https://lore.kernel.org/r/20250709-sm7635-icc-v3-0-c446203c3b3a@fairphone.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the Qualcomm interconnect buses found in Milos based
platforms. The topology consists of several NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20250709-sm7635-icc-v3-2-c446203c3b3a@fairphone.com
[georgi: remove null termination of nodes and links]
Signed-off-by: Georgi Djakov <djakov@kernel.org>
In the same spirit as e.g. Commit b136d257ee ("interconnect: qcom:
sc8280xp: Drop IP0 interconnects"), drop the resources that should be
taken care of through the clk-rpmh driver.
Fixes: 77d79677b0 ("interconnect: qcom: add QCS615 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250627-topic-qcs615_icc_ipa-v1-2-dc47596cde69@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The 'icc_bw_lock' mutex is introduced in commit af42269c35
("interconnect: Fix locking for runpm vs reclaim") in order to decouple
serialization of bw aggregation from codepaths that require memory
allocation.
However commit d30f83d278 ("interconnect: core: Add dynamic id
allocation support") added a devm_kasprintf() call into a path protected
by the 'icc_bw_lock' which causes the following lockdep warning on
machines like the Lenovo ThinkPad X13s:
======================================================
WARNING: possible circular locking dependency detected
6.16.0-rc3 #15 Not tainted
------------------------------------------------------
(udev-worker)/342 is trying to acquire lock:
ffffb973f7ec4638 (fs_reclaim){+.+.}-{0:0}, at: __kmalloc_node_track_caller_noprof+0xa0/0x3e0
but task is already holding lock:
ffffb973f7f7f0e8 (icc_bw_lock){+.+.}-{4:4}, at: icc_node_add+0x44/0x154
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (icc_bw_lock){+.+.}-{4:4}:
icc_init+0x48/0x108
do_one_initcall+0x64/0x30c
kernel_init_freeable+0x27c/0x500
kernel_init+0x20/0x1d8
ret_from_fork+0x10/0x20
-> #0 (fs_reclaim){+.+.}-{0:0}:
__lock_acquire+0x136c/0x2114
lock_acquire+0x1c8/0x354
fs_reclaim_acquire+0x74/0xa8
__kmalloc_node_track_caller_noprof+0xa0/0x3e0
devm_kmalloc+0x54/0x124
devm_kvasprintf+0x74/0xd4
devm_kasprintf+0x58/0x80
icc_node_add+0xb4/0x154
qcom_osm_l3_probe+0x20c/0x314 [icc_osm_l3]
platform_probe+0x68/0xd8
really_probe+0xc0/0x38c
__driver_probe_device+0x7c/0x160
driver_probe_device+0x40/0x110
__driver_attach+0xfc/0x208
bus_for_each_dev+0x74/0xd0
driver_attach+0x24/0x30
bus_add_driver+0x110/0x234
driver_register+0x60/0x128
__platform_driver_register+0x24/0x30
osm_l3_driver_init+0x20/0x1000 [icc_osm_l3]
do_one_initcall+0x64/0x30c
do_init_module+0x58/0x23c
load_module+0x1df8/0x1f70
init_module_from_file+0x88/0xc4
idempotent_init_module+0x188/0x280
__arm64_sys_finit_module+0x6c/0xd8
invoke_syscall+0x48/0x110
el0_svc_common.constprop.0+0xc0/0xe0
do_el0_svc+0x1c/0x28
el0_svc+0x4c/0x158
el0t_64_sync_handler+0xc8/0xcc
el0t_64_sync+0x198/0x19c
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(icc_bw_lock);
lock(fs_reclaim);
lock(icc_bw_lock);
lock(fs_reclaim);
*** DEADLOCK ***
The icc_node_add() functions is not designed to fail, and as such it
should not do any memory allocation. In order to avoid this, add a new
helper function for the name generation to be called by drivers which
are using the new dynamic id feature.
Fixes: d30f83d278 ("interconnect: core: Add dynamic id allocation support")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://lore.kernel.org/r/20250625-icc-bw-lockdep-v3-1-2b8f8b8987c4@gmail.com
Co-developed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20250627075854.26943-1-johan+linaro@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
When memory allocation fails during creating the name of the nodes in
icc_clk_register(), the code continues on the error path and it calls
icc_nodes_remove() to destroy the already created nodes. However that
function only destroys the nodes which were already added to the provider
and the newly created nodes are never destroyed in case of error.
In order to avoid a memory leaks, change the code to destroy the newly
created nodes explicitly in case of memory allocation failures.
Fixes: 44c5aa73cc ("interconnect: icc-clk: check return values of devm_kasprintf()")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250625-icc-clk-memleak-fix-v1-1-4151484cd24f@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Since commit d30f83d278 ("interconnect: core: Add dynamic id allocation
support"), interconnect node ids greater than or equal to ICC_DYN_ID_START
are reserved for dynamic id allocation. Yet the icc_node_create_nolock()
function allows to directly use such ids for creating nodes. This can
cause problems by executing dynamic id related codepaths even for nodes
intended to use static ids.
For example, the 'nsscc-ipq9574' driver creates interconnect nodes with
static ids starting from 19148. Because these ids belongs to the dynamic
id range, the icc_node_add() function replaces the node names
unexpectedly.
The node names looked like this before the change:
# grep nss_cc /sys/kernel/debug/interconnect/interconnect_summary
nss_cc_nssnoc_ppe_clk_master 0 0
nss_cc_nssnoc_ppe_clk_slave 0 0
nss_cc_nssnoc_ppe_cfg_clk_master 0 0
...
And those have an unexpected suffix now:
# grep nss_cc /sys/kernel/debug/interconnect/interconnect_summary
nss_cc_nssnoc_ppe_clk_master@39b00000.clock-controller 0 0
nss_cc_nssnoc_ppe_clk_slave@39b00000.clock-controller 0 0
nss_cc_nssnoc_ppe_cfg_clk_master@39b00000.clock-controller 0 0
...
Increase the value of ICC_DYN_ID_START to avoid this.
Also, add sanity check to the icc_node_create_nolock() function to prevent
directly creating nodes with ids reserved for dynamic allocation in order
to detect these kind of problems.
Fixes: d30f83d278 ("interconnect: core: Add dynamic id allocation support")
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250625-icc-dyn-id-fix-v1-1-127cb5498449@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add the missing error handling in case node name allocation ever fails.
Fixes: 2f95b9d5cf ("interconnect: Add generic interconnect driver for Exynos SoCs")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20250623142437.23068-1-johan+linaro@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add Epoch Subsystem (EPSS) L3 provider support on SA8775P SoCs.
Current interconnect framework is based on static IDs for creating node
and registering with framework. This becomes a limitation for topologies
where there are multiple instances of same interconnect provider.
Modified interconnect framework APIs to create and link icc node with
dynamic IDs, this will help to overcome the dependency on static IDs.
* icc-sa8775p
dt-bindings: interconnect: Add EPSS L3 compatible for SA8775P
interconnect: core: Add dynamic id allocation support
interconnect: qcom: Add multidev EPSS L3 support
interconnect: qcom: icc-rpmh: Add dynamic icc node id support
interconnect: qcom: sa8775p: Add dynamic icc node id support
Link: https://lore.kernel.org/r/20250415095343.32125-1-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The mc_virt & clk_virt nodes are virtual and doesn't have associated registers,
thus the regmap config will fail with:
qnoc-sm8650 interconnect-0: error -EINVAL: invalid resource (null)
Remove the regmap config since QoS will never be applied to those virtual
nodes.
Reported-by: Pengyu Luo <mitltlatltl@gmail.com>
Fixes: 40ef9b6b77 ("interconnect: qcom: sm8650: enable QoS configuration")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250519-topic-sm8650-upstream-icc-qos-fix-v1-1-6ace779250aa@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
To facilitate dynamic id allocation, discard the static IDs
from node data and set alloc_dyn_id in descriptor structure
to indicate dynamic ID allocation. Update the topology to use
node pointers for links instead of static IDs and forward declare
the node pointer to avoid undefined references.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250415095343.32125-6-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Interconnect framework relies on static IDs for creating,
linking and maintaning the topology. This dependency on static
IDs prevents creating two instances of same provider. To overcome
the dependency on static IDs, dynamic ID support is being added.
To facilitate dynamic node ID support, the driver now uses
node pointers for links instead of static node IDs and icc_node
pointer is added as member in qcom_icc_node structure to track
the node creation.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250415095343.32125-5-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
EPSS on SA8775P has two instances, necessitating the creation of two
device nodes with different compatibles due to the unique ICC node ID
and name limitations in the interconnect framework. Add multidevice
support for the OSM-L3 provider to dynamically obtain unique node IDs
and register with the framework.
EPSS topology includes a single master-slave pair within the same
provider, the node linking logic is simplified by directly connecting
the master node to the slave node.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20250415095343.32125-4-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The current interconnect framework relies on static IDs for node
creation and registration, which limits topologies with multiple
instances of the same interconnect provider. To address this,
introduce icc_node_create_dyn() and icc_link_nodes() APIs to
dynamically allocate IDs for interconnect nodes during creation
and link. This change removes the dependency on static IDs,
allowing multiple instances of the same hardware, such as EPSS L3.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20250415095343.32125-3-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This pull request contains the interconnect changes for the 6.14-rc1 merge
window. It contains one new driver and DT documentation updates for L3
and bandwidth monitors.
Driver changes:
- New driver for the SM8750 platform
- Add DT compatibles for QCS615 BWMON and SM8650 OSM
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Merge tag 'icc-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next
Pull interconnect changes from Georgi:
interconnect changes for 6.14
This pull request contains the interconnect changes for the 6.14-rc1 merge
window. It contains one new driver and DT documentation updates for L3
and bandwidth monitors.
Driver changes:
- New driver for the SM8750 platform
- Add DT compatibles for QCS615 BWMON and SM8650 OSM
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
interconnect: sm8750: Add missing const to static qcom_icc_desc
interconnect: qcom: Add interconnect provider driver for SM8750
dt-bindings: interconnect: add interconnect bindings for SM8750
The statically allocated 'struct qcom_icc_desc' is not modified by the
driver and like all other instances should be const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250109164630.175093-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The following UBSAN error is reported during boot on the db410c board on
a clang-19 build:
Internal error: UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP
...
pc : qnoc_probe+0x5f8/0x5fc
...
The cause of the error is that the counter member was not set before
accessing the annotated flexible array member, but after that. Fix this
by initializing it earlier.
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Closes: https://lore.kernel.org/r/CA+G9fYs+2mBz1y2dAzxkj9-oiBJ2Acm1Sf1h2YQ3VmBqj_VX2g@mail.gmail.com
Fixes: dd4904f3b9 ("interconnect: qcom: Annotate struct icc_onecell_data with __counted_by")
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20241203223334.233404-1-djakov@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the network of connects present on the SAR2130P platform.
* icc-sar2130p
dt-bindings: interconnect: qcom: document SAR2130P NoC
interconnect: qcom: add support for SAR2130P
Link: https://lore.kernel.org/r/20241018-sar2130p-icc-v2-0-c58c73dcd19d@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The use of of_property_read_bool() for non-boolean properties is
deprecated in favor of of_property_present() when testing for property
presence.
Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20241104190650.275278-1-robh@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the Qualcomm interconnect buses found in QCS8300
based platforms. The topology consists of several NoCs that are
controlled by a remote processor that collects the aggregated
bandwidth for each master-slave pairs.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20240910101013.3020-3-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/interconnect to use
.remove(), with the eventual goal to drop struct
platform_driver::remove_new(). As .remove() and .remove_new() have the
same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20241017154920.136220-2-u.kleine-koenig@baylibre.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the interconnects as present on the Qualcomm
SAR2130P platform. This is based on the msm-5.10 tree, tag
KERNEL.PLATFORM.1.0.r4-00400-NEO.0.
Co-developed-by: Odelu Kukatla <quic_okukatla@quicinc.com>
Signed-off-by: Odelu Kukatla <quic_okukatla@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20241018-sar2130p-icc-v2-2-c58c73dcd19d@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for the Qualcomm interconnect buses found in QCS615
based platforms. The topology consists of several NoCs that are
controlled by a remote processor that collects the aggregated
bandwidth for each master-slave pairs.
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20240924143958.25-3-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
rename qos_clks_required flag to qos_requires_clocks in qcom_icc_desc
structure. This flag indicates that clocks are required for accessing
and programming the QoS registers.
Suggested-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Link: https://lore.kernel.org/r/20240911093516.22347-1-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Return -EPROBE_DEFER from interconnect provider incase probe defer is
received from devm_clk_bulk_get_all(). This would help in reattempting
the inteconnect driver probe, once the required QoS clocks are
available.
Suggested-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com>
Reviewed-by: Konrad Dybcio <konradybcio@kernel.org>
Fixes: 0a7be6b35d ("interconnect: qcom: icc-rpmh: Add QoS configuration support")
Link: https://lore.kernel.org/r/20240911094516.16901-1-quic_rlaggysh@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
A set of fixes that target stability of the SM8350 platform.
* icc-sm8350
interconnect: qcom: sm8350: drop DISP nodes
dt-bindings: interconnect: qcom,sm8350: drop DISP nodes
interconnect: qcom: sm8250: Enable sync_state
Link: https://lore.kernel.org/r/20240804-sm8350-fixes-v1-0-1149dd8399fe@linaro.org/
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This series introduce new ICC drivers for some legacy socs
while at it also updates a bit of qcs404 driver which seems
to not receive much attention lately.
* icc-misc
dt-bindings: interconnect: qcom: Add Qualcomm MSM8976 NoC
interconnect: qcom: Add MSM8976 interconnect provider driver
dt-bindings: interconnect: qcom: Add Qualcomm MSM8937 NoC
interconnect: qcom: Add MSM8937 interconnect provider driver
interconnect: qcom: qcs404: Mark AP-owned nodes as such
interconnect: qcom: qcs404: Add regmaps and more bus descriptions
dt-bindings: interconnect: qcom: msm8939: Fix example
interconnect: qcom: msm8953: Add ab_coeff
dt-bindings: interconnect: qcom: msm8953: Fix 'See also' in description
Link: https://lore.kernel.org/all/20240709102728.15349-1-a39.skl@gmail.com/
Signed-off-by: Georgi Djakov <djakov@kernel.org>
BIMC and SNOC-MM on downstream feature
qcom,util-fact which translates to ab_coeff, add it.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Link: https://lore.kernel.org/r/20240709102728.15349-9-a39.skl@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Currently we are lacking descriptions of regmaps, bus clocks
and types of busses, provide them.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Link: https://lore.kernel.org/r/20240709102728.15349-7-a39.skl@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for interconnect busses found in MSM8937 based platforms.
The topology consists of four NoCs that are partially controlled by a
RPM processor.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Link: https://lore.kernel.org/r/20240709102728.15349-5-a39.skl@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Enable the generic icc sync_state callback to ensure interconnect votes
are actually taken into account, instead of being forced to the maximum
value.
Fixes: b95b668eaa ("interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240804-sm8350-fixes-v1-8-1149dd8399fe@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
The msm-5.x kernels have additional display RSC and separate display BCM
voter. Since upstream kernel doesn't yet provide display RSC, we end up
duplicating several nodes, which can result in incorrect votes being
cast. Drop *_DISP nodes.
Fixes: d26a566744 ("interconnect: qcom: Add SM8350 interconnect provider driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240804-sm8350-fixes-v1-4-1149dd8399fe@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for interconnect busses found in MSM8976 based platforms.
The topology consists of four NoCs that are partially controlled by a
RPM processor.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Link: https://lore.kernel.org/r/20240709102728.15349-3-a39.skl@gmail.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
With the new __counted_by annotation, the "num_nodes" struct member must
be set before accessing the "nodes" array. This initialization was done
in other places where a new struct icc_onecell_data is allocated, but this
case in icc_clk_register() was missed. Set "num_nodes" after allocation.
Fixes: dd4904f3b9 ("interconnect: qcom: Annotate struct icc_onecell_data with __counted_by")
Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240716214819.work.328-kees@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Here is the "big" set of char/misc and other driver subsystem changes
for 6.11-rc1. Nothing major in here, just loads of new drivers and
updates. Included in here are:
- IIO api updates and new drivers added
- wait_interruptable_timeout() api cleanups for some drivers
- MODULE_DESCRIPTION() additions for loads of drivers
- parport out-of-bounds fix
- interconnect driver updates and additions
- mhi driver updates and additions
- w1 driver fixes
- binder speedups and fixes
- eeprom driver updates
- coresight driver updates
- counter driver update
- new misc driver additions
- other minor api updates
All of these, EXCEPT for the final Kconfig build fix for 32bit systems,
have been in linux-next for a while with no reported issues. The
Kconfig fixup went in 29 hours ago, so might have missed the latest
linux-next, but was acked by everyone involved.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc and other driver updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystem changes
for 6.11-rc1. Nothing major in here, just loads of new drivers and
updates. Included in here are:
- IIO api updates and new drivers added
- wait_interruptable_timeout() api cleanups for some drivers
- MODULE_DESCRIPTION() additions for loads of drivers
- parport out-of-bounds fix
- interconnect driver updates and additions
- mhi driver updates and additions
- w1 driver fixes
- binder speedups and fixes
- eeprom driver updates
- coresight driver updates
- counter driver update
- new misc driver additions
- other minor api updates
All of these, EXCEPT for the final Kconfig build fix for 32bit
systems, have been in linux-next for a while with no reported issues.
The Kconfig fixup went in 29 hours ago, so might have missed the
latest linux-next, but was acked by everyone involved"
* tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits)
misc: Kconfig: exclude mrvl-cn10k-dpi compilation for 32-bit systems
misc: delete Makefile.rej
binder: fix hang of unregistered readers
misc: Kconfig: add a new dependency for MARVELL_CN10K_DPI
virtio: add missing MODULE_DESCRIPTION() macro
agp: uninorth: add missing MODULE_DESCRIPTION() macro
spmi: add missing MODULE_DESCRIPTION() macros
dev/parport: fix the array out-of-bounds risk
samples: configfs: add missing MODULE_DESCRIPTION() macro
misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
misc: keba: Fix missing AUXILIARY_BUS dependency
slimbus: Fix struct and documentation alignment in stream.c
MAINTAINERS: CC dri-devel list on Qualcomm FastRPC patches
misc: fastrpc: use coherent pool for untranslated Compute Banks
misc: fastrpc: support complete DMA pool access to the DSP
misc: fastrpc: add missing MODULE_DESCRIPTION() macro
misc: fastrpc: Add missing dev_err newlines
misc: fastrpc: Use memdup_user()
nvmem: core: Implement force_ro sysfs attribute
nvmem: Use sysfs_emit() for type attribute
...
Wrap icc_clk_register to create devm_icc_clk_register to be
able to release the resources properly.
Acked-by: Georgi Djakov <djakov@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/20240430064214.2030013-4-quic_varada@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Presently, icc-clk driver autogenerates the master and slave ids.
However, devices with multiple nodes on the interconnect could
have other constraints and may not match with the auto generated
node ids.
Hence, modify the driver to use the master/slave ids provided by
the caller instead of auto generating.
Also, update clk-cbf-8996 accordingly.
Acked-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/20240430064214.2030013-2-quic_varada@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This series adds QoS support for QNOC type device which can be found on
SC7280 platform. It adds support for programming priority,
priority forward disable and urgency forwarding. This helps in
priortizing the traffic originating from different interconnect masters
at NOC (Network On Chip).
* icc-rpmh-qos
dt-bindings: interconnect: add clock property to enable QOS on SC7280
interconnect: qcom: icc-rpmh: Add QoS configuration support
interconnect: qcom: sc7280: enable QoS configuration
interconnect: qcom: Fix DT backwards compatibility for QoS
Link: https://lore.kernel.org/r/20240607173927.26321-1-quic_okukatla@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add qos_clks_required flag to skip QoS configuration if clocks property
is not populated in devicetree for providers which require clocks to be
enabled for accessing registers. This is to keep the QoS configuration
backwards compatible with devices that have older DTB.
Reported-by: Bjorn Andersson <andersson@kernel.org>
Closes: https://lore.kernel.org/all/ciji6nlxn752ina4tmh6kwvek52nxpnguomqek6plwvwgvoqef@yrtexkpmn5br/
Signed-off-by: Odelu Kukatla <quic_okukatla@quicinc.com>
Tested-by: Bjorn Andersson <andersson@kernel.org>
Fixes: fbd908bb8b ("interconnect: qcom: sc7280: enable QoS configuration")
Link: https://lore.kernel.org/r/20240704125515.22194-1-quic_okukatla@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add driver for interconnect busses found in MSM8953 based platforms.
The topology consists of four NoCs that are partially controlled by a
RPM processor.
Note that one of NoCs (System NoC) has a counterpart (System NoC MM)
that is modelled as child device to avoid resource conflicts, since it
uses same MMIO space for configuration.
Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20240628-msm8953-interconnect-v3-2-a70d582182dc@mainlining.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Enable QoS configuration for master ports with predefined values
for priority and urgency forawrding.
Signed-off-by: Odelu Kukatla <quic_okukatla@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240607173927.26321-3-quic_okukatla@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Add QoS support for QNOC device for configuring priority,
priority forward disable and urgency forwarding. QoS is required
to prioritize the traffic originating from different interconnect
masters at NoC (Network On Chip).
Signed-off-by: Odelu Kukatla <quic_okukatla@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240607173927.26321-2-quic_okukatla@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
MediaTek DVFSRC Bus Bandwidth and Regulator knobs
This series adds support for the MediaTek Dynamic Voltage and Frequency
Scaling Resource Controller (DVFSRC), found on many MediaTek SoCs.
This hardware collects requests from both software and the various remote
processors embededd into the SoC, and decides about a minimum operating
voltage and a minimum DRAM frequency to fulfill those requests, in an
effort to provide the best achievable performance per watt.
Such hardware IP is capable of transparently performing direct register
R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
Summarizing how the DVFSRC works for Interconnect:
ICC provider ICC Nodes
---- ----
_________ |CPU | |--- |VPU |
_____ | |----- ---- | ----
| |->| DRAM | ---- | ----
|DRAM |->|scheduler|----- |GPU | |--- |DISP|
| |->| (EMI) | ---- | ----
|_____|->|_________|---. ----- | ----
/|\ `-|MMSYS|--|--- |VDEC|
| ----- | ----
| | ----
| change DRAM freq |--- |VENC|
-------- | ----
SMC --> | DVFSRC | | ----
-------- |--- |IMG |
| ----
| ----
|--- |CAM |
----
* icc-mtk
dt-bindings: interconnect: Add MediaTek EMI Interconnect bindings
interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver
interconnect: mediatek: remove unneeded semicolon
Link: https://lore.kernel.org/r/20240610085735.147134-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
With ARCH=arm64, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/qcom/interconnect_qcom.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/qcom/icc-rpmh.o
Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240612-md-drivers-interconnect-qcom-v1-1-da0462d6301b@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/imx/imx-interconnect.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/imx/imx8mm-interconnect.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/imx/imx8mq-interconnect.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/imx/imx8mn-interconnect.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/interconnect/imx/imx8mp-interconnect.o
Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20240603-md-interconnect-imx-v1-1-348a9205506c@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
With the rework of how the __string() handles dynamic strings where it
saves off the source string in field in the helper structure[1], the
assignment of that value to the trace event field is stored in the helper
value and does not need to be passed in again.
This means that with:
__string(field, mystring)
Which use to be assigned with __assign_str(field, mystring), no longer
needs the second parameter and it is unused. With this, __assign_str()
will now only get a single parameter.
There's over 700 users of __assign_str() and because coccinelle does not
handle the TRACE_EVENT() macro I ended up using the following sed script:
git grep -l __assign_str | while read a ; do
sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file;
mv /tmp/test-file $a;
done
I then searched for __assign_str() that did not end with ';' as those
were multi line assignments that the sed script above would fail to catch.
Note, the same updates will need to be done for:
__assign_str_len()
__assign_rel_str()
__assign_rel_str_len()
I tested this with both an allmodconfig and an allyesconfig (build only for both).
[1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/
Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org> # xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>
This pull request contains the interconnect changes for the 6.10-rc1 merge
window. It contains some small driver changes listed below:
Driver changes:
- Cleanup sm6115 QoS port numbering.
- Fix incorrect port value in qcm2290 driver.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Merge tag 'icc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next
Georgi writes:
interconnect changes for 6.10
This pull request contains the interconnect changes for the 6.10-rc1 merge
window. It contains some small driver changes listed below:
Driver changes:
- Cleanup sm6115 QoS port numbering.
- Fix incorrect port value in qcm2290 driver.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
interconnect: qcom: qcm2290: Fix mas_snoc_bimc QoS port assignment
interconnect: qcom: sm6115: Unspaghettify SNoC QoS port numbering
When I was creating this driver, my bright mind overlooked the existence
of desc->qos_offset and decided to make up for the difference it made by
adding 21 (0x15) to the port index on SNoC and its downstream buses.
Undo this mistake to make the indices actually mean something.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240326-topic-rpm_icc_qos_cleanup-v1-1-357e736792be@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Here are fixes for two reported issues. One of them is a fix for
a driver that tries to access a non-existent resource which prints
a warning message during boot. The other one is fixing a race
condition in the core framework where one struct member has been
left unprotected by mutex.
- interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
- interconnect: Don't access req_list while it's being manipulated
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Merge tag 'icc-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-work-linus
Georgi writes:
interconnect fixes for v6.9-rc
Here are fixes for two reported issues. One of them is a fix for
a driver that tries to access a non-existent resource which prints
a warning message during boot. The other one is fixing a race
condition in the core framework where one struct member has been
left unprotected by mutex.
- interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
- interconnect: Don't access req_list while it's being manipulated
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
interconnect: Don't access req_list while it's being manipulated
interconnect: qcom: x1e80100: Remove inexistent ACV_PERF BCM
The icc_lock mutex was split into separate icc_lock and icc_bw_lock
mutexes in [1] to avoid lockdep splats. However, this didn't adequately
protect access to icc_node::req_list.
The icc_set_bw() function will eventually iterate over req_list while
only holding icc_bw_lock, but req_list can be modified while only
holding icc_lock. This causes races between icc_set_bw(), of_icc_get(),
and icc_put().
Example A:
CPU0 CPU1
---- ----
icc_set_bw(path_a)
mutex_lock(&icc_bw_lock);
icc_put(path_b)
mutex_lock(&icc_lock);
aggregate_requests()
hlist_for_each_entry(r, ...
hlist_del(...
<r = invalid pointer>
Example B:
CPU0 CPU1
---- ----
icc_set_bw(path_a)
mutex_lock(&icc_bw_lock);
path_b = of_icc_get()
of_icc_get_by_index()
mutex_lock(&icc_lock);
path_find()
path_init()
aggregate_requests()
hlist_for_each_entry(r, ...
hlist_add_head(...
<r = invalid pointer>
Fix this by ensuring icc_bw_lock is always held before manipulating
icc_node::req_list. The additional places icc_bw_lock is held don't
perform any memory allocations, so we should still be safe from the
original lockdep splats that motivated the separate locks.
[1] commit af42269c35 ("interconnect: Fix locking for runpm vs reclaim")
Signed-off-by: Mike Tipton <quic_mdtipton@quicinc.com>
Fixes: af42269c35 ("interconnect: Fix locking for runpm vs reclaim")
Reviewed-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20240305225652.22872-1-quic_mdtipton@quicinc.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Booting the kernel on X1E results in a message like:
[ 2.561524] qnoc-x1e80100 interconnect-0: ACV_PERF could not find RPMh address
And indeed, taking a look at cmd-db, no such BCM exists. Remove it.
Fixes: 9f19677284 ("interconnect: qcom: Add X1E80100 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Mike Tipton <quic_mdtipton@quicinc.com>
Link: https://lore.kernel.org/r/20240302-topic-faux_bcm_x1e-v1-1-c40fab7c4bc5@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This pull request contains the interconnect changes for the 6.9-rc1 merge
window. The highlights are below:
Core changes:
- Constify the of_phandle_args in xlate functions.
Driver changes:
- New interconnect driver for the MSM8909 platform.
- New interconnect driver for the SM7150 platform.
- Clean-up and removal of unused resources in drivers.
- Constify some pointers to structs.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Merge tag 'icc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next
Georgi writes:
interconnect changes for 6.9
This pull request contains the interconnect changes for the 6.9-rc1 merge
window. The highlights are below:
Core changes:
- Constify the of_phandle_args in xlate functions.
Driver changes:
- New interconnect driver for the MSM8909 platform.
- New interconnect driver for the SM7150 platform.
- Clean-up and removal of unused resources in drivers.
- Constify some pointers to structs.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
interconnect: qcom: Add SM7150 driver support
dt-bindings: interconnect: Add Qualcomm SM7150 DT bindings
interconnect: constify of_phandle_args in xlate
dt-bindings: interconnect: qcom,rpmh: Fix bouncing @codeaurora address
interconnect: qcom: x1e80100: constify pointer to qcom_icc_bcm
interconnect: qcom: sa8775p: constify pointer to qcom_icc_bcm
interconnect: qcom: sm6115: constify pointer to qcom_icc_node
interconnect: qcom: sm8250: constify pointer to qcom_icc_node
interconnect: qcom: sa8775p: constify pointer to qcom_icc_node
interconnect: qcom: msm8909: constify pointer to qcom_icc_node
interconnect: qcom: x1e80100: Remove bogus per-RSC BCMs and nodes
dt-bindings: interconnect: Remove bogus interconnect nodes
interconnect: qcom: sm8550: Remove bogus per-RSC BCMs and nodes
interconnect: qcom: Add MSM8909 interconnect provider driver
dt-bindings: interconnect: Add Qualcomm MSM8909 DT bindings
The xlate callbacks are supposed to translate of_phandle_args to proper
provider without modifying the of_phandle_args. Make the argument
pointer to const for code safety and readability.
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com> # Tegra
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com> # Samsung
Link: https://lore.kernel.org/r/20240220072213.35779-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Pointers to struct qcom_icc_bcm are const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240208105056.128448-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Pointers to struct qcom_icc_bcm are const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240208105056.128448-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
