These warnings don't seem to trigger anymore. Probably due to the
introduction of the vdso/ header namespace. Nowadays these suppression
only hide real problems.
Re-enable the warnings.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Will Deacon <will@kernel.org>
The ASpeed kcs-bmc nodes have a "clocks" property which isn't
documented. It looks like all the LPC child devices have the same clock
source and some of the drivers manage their clock. Perhaps it is the
parent device that should have the clock, but it's too late for that.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <20250807132852.3291305-1-robh@kernel.org>
Signed-off-by: Corey Minyard <corey@minyard.net>
The limit on the number of user messages had a number of issues,
improper counting in some cases and a use after free.
Restructure how this is all done to handle more in the receive message
allocation routine, so all refcouting and user message limit counts
are done in that routine. It's a lot cleaner and safer.
Reported-by: Gilles BULOZ <gilles.buloz@kontron.com>
Closes: https://lore.kernel.org/lkml/aLsw6G0GyqfpKs2S@mail.minyard.net/
Fixes: 8e76741c3d ("ipmi: Add a limit on the number of users that may use IPMI")
Cc: <stable@vger.kernel.org> # 4.19
Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Gilles BULOZ <gilles.buloz@kontron.com>
Fix grammatical error in <past tense verb> + <infinitive>
construct related to memory allocation checks.
In essence change "Failed to allocated" to "Failed to allocate".
Signed-off-by: Nikola Z. Ivanov <zlatistiv@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
This reverts commit c608966f3f.
This patch has a subtle bug that can cause the IPMI driver to go into an
infinite loop if the BMC misbehaves in a certain way. Apparently
certain BMCs do misbehave this way because several reports have come in
recently about this.
Signed-off-by: Corey Minyard <corey@minyard.net>
Tested-by: Eric Hagberg <ehagberg@janestreet.com>
Cc: <stable@vger.kernel.org> # 6.2
Dan Carpenter got a Smatch warning:
drivers/char/ipmi/ipmi_msghandler.c:5265 ipmi_free_recv_msg()
warn: sleeping in atomic context
due to the recent rework of the IPMI driver's locking. I didn't realize
vfree could block. But there is an easy solution to this, now that
almost everything in the message handler runs in thread context.
I wanted to spend the time earlier to see if seq_lock could be converted
from a spinlock to a mutex, but I wanted the previous changes to go in
and soak before I did that. So I went ahead and did the analysis and
converting should work. And solve this problem.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202503240244.LR7pOwyr-lkp@intel.com/
Fixes: 3be997d5a6 ("ipmi:msghandler: Remove srcu from the ipmi user structure")
Cc: <stable@vger.kernel.org> # 6.16
Signed-off-by: Corey Minyard <corey@minyard.net>
Some PSPv11 SOCs take a longer time for PSP based mode-1 reset. Instead
of checking for C2PMSG_33 status, add the callback wait_for_bootloader.
Wait for bootloader to be back to steady state is already part of the
generic mode-1 reset flow. Increase the retry count for bootloader wait
and also fix the mask to prevent fake pass.
Fixes: 8345a71fc5 ("drm/amdgpu: Add more checks to PSP mailbox")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4531
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 32f73741d6)
Eliminate the use_ptemod variable by replacing its use cases with
xen_pv_domain().
Instead of passing the xen_pv_domain() return value to
gntdev_ioctl_dmabuf_exp_from_refs(), use xen_pv_domain() in that
function.
Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250826145608.10352-4-jgross@suse.com>
Instead of testing the XENFEAT_auto_translated_physmap feature, just
use !xen_pv_domain() which is equivalent.
This has the advantage that a kernel not built with CONFIG_XEN_PV
will be smaller due to dead code elimination.
Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250826145608.10352-3-jgross@suse.com>
Rework xen_pv_domain() to no longer use the xen_domain_type variable,
but the artificial X86_FEATURE_XENPV cpu feature.
On non-x86 architectures xen_pv_domain() can be defined as "0".
This has the advantage that a kernel not built with CONFIG_XEN_PV
will be smaller due to dead code elimination.
Set the X86_FEATURE_XENPV feature very early, as xen_pv_domain() is
used rather early, too.
Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250826145608.10352-2-jgross@suse.com>
Added parentheses around sizeof to make the expression clearer
and improve readability. This change has no functional impact.
```
[command]
./scripts/checkpatch.pl tools/testing/selftests/arm64/fp/sve-ptrace.c
[output]
WARNING: sizeof *sve should be sizeof(*sve)
```
Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
The comment was correct, but `checkpatch` script flagged it with a warning
as shown in the output section. The comment is slightly modified
to improve readability, which also suppresses the warning.
```
[command]
./script/checkpatch.pl --strict -f tools/testing/selftests/arm64/fp/fp-stress.c
[output]
WARNING: Possible repeated word: 'on'
```
Signed-off-by: Vivek Yadav <vivekyadav1207731111@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
Add the sound card for monaco-evk board and verified playback
functionality using the max98357a I2S speaker amplifier and I2S
microphones. The max98357a speaker amplifier is connected via
High-Speed MI2S HS0 interface, while the microphones utilize the
Secondary MI2S interface and also enable required pin controller
gpios for audio.
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Signed-off-by: Umang Chheda <umang.chheda@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250905192350.1223812-5-umang.chheda@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Monaco EVK is a single board computer, based on the Qualcomm
QCS8300 SoC, with the following features :
- Storage: 1 × 128 GB UFS, micro-SD card, EEPROMs for MACs,
and eMMC.
- Audio/Video, Camera & Display ports.
- Connectivity: RJ45 2.5GbE, WLAN/Bluetooth, CAN/CAN-FD.
- PCIe ports.
- USB & UART ports.
On top of Monaco EVK board additional mezzanine boards can be
stacked in future.
Add support for the following components :
- GPI (Generic Peripheral Interface) and QUPv3-0/1
controllers to facilitate DMA and peripheral communication.
- TCA9534 I/O expander via I2C to provide 8 additional GPIO
lines for extended I/O functionality.
- USB1 controller in device mode to support USB peripheral
operations. USB OTG mode will be enabled for USB1 controller
once the VBUS control based on ID pin is implemented in
hd3ss3220.c.
- Remoteproc subsystems for supported DSPs such as Audio DSP,
Compute DSP and Generic DSP, along with their corresponding
firmware.
- Configure nvmem-layout on the I2C EEPROM to store data for Ethernet
and other consumers.
- QCA8081 2.5G Ethernet PHY on port-0 and expose the
Ethernet MAC address via nvmem for network configuration.
It depends on CONFIG_QCA808X_PHY to use QCA8081 PHY.
- Support for the Iris video codec.
Written with inputs from :
Rakesh Kota <rakesh.kota@oss.qualcomm.com> - Regulators.
Nirmesh Kumar Singh <nirmesh.Singh@oss.qualcomm.com> - GPIO expander.
Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com> - GPI/QUP.
Mohd Ayaan Anwar <quic_mohdayaa@quicinc.com> - Ethernet.
Monish Chunara <quic_mchunara@quicinc.com> - EEPROM.
Vikash Garodia <quic_vgarodia@quicinc.com> - Iris Video codec.
Swati Agarwal <swati.agarwal@oss.qualcomm.com> - USB.
Signed-off-by: Umang Chheda <umang.chheda@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250905192350.1223812-3-umang.chheda@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Introduce new bindings for the Monaco Evaluation Kit (EVK),
an IoT board based on the QCS8300 SoC.
Signed-off-by: Umang Chheda <umang.chheda@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250905192350.1223812-2-umang.chheda@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add the sound card node with tested playback over WSA8835 speakers,
digital on-board mics along with wcd9370 headset playabck and record.
Co-developed-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250903151337.1037246-9-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Add nodes for WSA8830 speakers and WCD9370 headset codec
on qcm6490-idp board and enable lpass macros along with
audio support pin controls.
Co-developed-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250903151337.1037246-8-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Enable LPASS macros (WSA, VA, RX, TX) and the lpass_tlmm clock required
for audioreach functionality. In audioreach solution mclk, npl, and fsgen
clocks are managed via the Q6PRM. On SC7280-based boards, the TX CORE
clock is used to drive both RX and WSA audio paths following as per
hardware design.
Co-developed-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250903151337.1037246-5-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Introduce qcs6490-audioreach.dtsi to support AudioReach architecture on
QCS6490 platforms. The existing ADSP Bypass DTSI files such as sc7280.dtsi,
which is tailored for ADSP Bypass architecture as they lack DSP-specific
nodes required for AudioReach. The new qcs6490-audioreach.dtsi file defines
nodes for AudioReach specific components such as APM (Audio Process
Manager), PRM (Proxy Resource Manager), and GPR (Generic Packet Router).
This change enable the audio from the legacy ADSP Bypass solution to
the AudioReach framework.
Co-developed-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250903151337.1037246-3-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Nolibc now does have getauxval(), use it.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
The return value was not assigned to 'ret', so the check afterwards
does not do anything.
Fixes: 3d37d4307e ("kselftest/arm64: Add very basic GCS test program")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
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Merge tag 'vfs-6.17-rc6.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"fuse:
- Prevent opening of non-regular backing files.
Fuse doesn't support non-regular files anyway.
- Check whether copy_file_range() returns a larger size than
requested.
- Prevent overflow in copy_file_range() as fuse currently only
supports 32-bit sized copies.
- Cache the blocksize value if the server returned a new value as
inode->i_blkbits isn't modified directly anymore.
- Fix i_blkbits handling for iomap partial writes.
By default i_blkbits is set to PAGE_SIZE which causes iomap to mark
the whole folio as uptodate even on a partial write. But fuseblk
filesystems support choosing a blocksize smaller than PAGE_SIZE
risking data corruption. Simply enforce PAGE_SIZE as blocksize for
fuseblk's internal inode for now.
- Prevent out-of-bounds acces in fuse_dev_write() when the number of
bytes to be retrieved is truncated to the fc->max_pages limit.
virtiofs:
- Fix page faults for DAX page addresses.
Misc:
- Tighten file handle decoding from userns.
Check that the decoded dentry itself has a valid idmapping in the
user namespace.
- Fix mount-notify selftests.
- Fix some indentation errors.
- Add an FMODE_ flag to indicate IOCB_HAS_METADATA availability.
This will be moved to an FOP_* flag with a bit more rework needed
for that to happen not suitable for a fix.
- Don't silently ignore metadata for sync read/write.
- Don't pointlessly log warning when reading coredump sysctls"
* tag 'vfs-6.17-rc6.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fuse: virtio_fs: fix page fault for DAX page address
selftests/fs/mount-notify: Fix compilation failure.
fhandle: use more consistent rules for decoding file handle from userns
fuse: Block access to folio overlimit
fuse: fix fuseblk i_blkbits for iomap partial writes
fuse: reflect cached blocksize if blocksize was changed
fuse: prevent overflow in copy_file_range return value
fuse: check if copy_file_range() returns larger than requested size
fuse: do not allow mapping a non-regular backing file
coredump: don't pointlessly check and spew warnings
fs: fix indentation style
block: don't silently ignore metadata for sync read/write
fs: add a FMODE_ flag to indicate IOCB_HAS_METADATA availability
Please enter a commit message to explain why this merge is necessary,
especially if it merges an updated upstream into a topic branch.
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Message-ID: <87frcx1yp5.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Message-ID: <87h5xd1ypa.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Message-ID: <87ikht1ypg.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Message-ID: <87jz291yrr.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Replace calls of devm_kzalloc() with devm_kcalloc() in master_stats_probe()
for safer memory allocation with built-in overflow protection.
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20250819035935.434121-1-rongqianfeng@vivo.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
configfs has a config_group_put() helper that was adopted by
commit 88df7939d7 ("drm/xe/configfs: Rename struct xe_config_device").
Another pending work to add psmi later landed in commit
afe902848b ("drm/xe/configfs: Allow to enable PSMI") and didn't use
the helper.
Use config_group_put() consistently to hide the inner workings of
configfs. No change in behavior since it does exactly the same thing
as currently being done.
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://lore.kernel.org/r/20250905162236.578117-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with a flexible-array member in the
middle of other structs, we use the `struct_group_tagged()` helper
to create a new tagged `struct bplus_header_fixed`. This structure
groups together all the members of the flexible `struct bplus_header`
except the flexible array.
As a result, the array is effectively separated from the rest of the
members without modifying the memory layout of the flexible structure.
We then change the type of the middle struct member currently causing
trouble from `struct bplus_header` to `struct bplus_header_fixed`.
We also want to ensure that when new members need to be added to the
flexible structure, they are always included within the newly created
tagged struct. For this, we use `static_assert()`. This ensures that the
memory layout for both the flexible structure and the new tagged struct
is the same after any changes.
This approach avoids having to implement `struct bplus_header_fixed`
as a completely separate structure, thus preventing having to maintain
two independent but basically identical structures, closing the door
to potential bugs in the future.
We also use `container_of()` (via a wrapper) whenever we need to retrieve
a pointer to the flexible structure, through which we can access the
flexible-array member, if necessary.
So, with these changes, fix 26 of the following type of warnings:
fs/hpfs/hpfs.h:456:23: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
fs/hpfs/hpfs.h:498:23: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
A750 GPU has similar IFPC related configurations like X1-85. Add
the IFPC QUIRK to enable IFPC feature.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673386/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Add the IFPC restore register list and enable IFPC support on Adreno
X1-85 gpu.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673384/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Now with IFPC, GX domain can collapse as soon as GPU becomes IDLE. So
add gx_is_on check before accessing any GX registers during crashstate
capture and recovery.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673383/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Moving to IFPC state clears the 'Perfcounter Select' register setup
by the userspace. So, lets block the IFPC when sysprof is active by
using the perfcounter oob signal to the GMU.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673380/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
From the hangcheck handler, KMD checks a few registers in GX
domain to see if the GPU made any progress. But it cannot access
those registers when IFPC is enabled. Since HW based hang detection
is pretty decent, lets rely on it instead of these registers when
IFPC is enabled.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673378/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Add a new quirk to denote IFPC (Inter-Frame Power Collapse) support
for a gpu. Based on this flag send the feature ctrl hfi message to
GMU to enable IFPC support.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673375/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Even though the GX power domain is kept ON when there is a pending GPU
interrupt, there is a small window of potential race with GMU where it
may move the AHB fence to 'Drop' mode. Once the GMU sees the pending IRQ,
it will move back the fence state to ALLOW mode. Close this race window
by polling for AHB fence to ensure that it is in 'Allow' mode.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673377/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
CP_ALWAYS_ON counter falls under GX domain which is collapsed during
IFPC. So switch to GMU_ALWAYS_ON counter for any CPU reads since it is
not impacted by IFPC. Both counters are clocked by same xo clock source.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673373/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Set Keepalive votes at appropriate places to block IFPC power collapse
until we access all the required registers. This is required during gpu
IRQ handling and also during preemption.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673369/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
There are some special registers which are accessible even when GX power
domain is collapsed during an IFPC sleep. Accessing these registers
wakes up GPU from power collapse and allow programming these registers
without additional handshake with GMU. This patch adds support for this
special register write sequence.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673368/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
With IFPC, there is a probability of accessing a GX domain register when
it is collapsed, which leads to gmu fence errors. To debug this, we need
to trace every gpu register accesses and identify the one just before a
gmu fence error. So, add an ftrace to track all gpu register accesses.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673366/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
A minor refactor to combine the subroutines for legacy a6xx GMUs under
a single check. This helps to avoid an unnecessary check and return
early from the subroutine for majority of a6xx gpus.
Also, document an intermediate unknown low power state which is not
exposed by the GMU firmware.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673364/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Since the PDC resides out of the GPU subsystem and cannot be reset in
case it enters bad state, utmost care must be taken to trigger the PDC
wake/sleep routines in the correct order.
The PDC wake sequence can be exercised only after a PDC sleep sequence.
Additionally, GMU firmware should initialize a few registers before the
KMD can trigger a PDC sleep sequence. So PDC sleep can't be done if the
GMU firmware has not initialized. Track these dependencies using a new
status variable and trigger PDC sleep/wake sequences appropriately.
Cc: stable@vger.kernel.org
Fixes: 4b565ca5a2 ("drm/msm: Add A6XX device support")
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673362/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
A7XX_GEN2 generation has additional TCS slots. Poll the respective
DRV status registers before pm suspend.
Fixes: 1f8c29e800 ("drm/msm/a6xx: Add A740 support")
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673361/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Bitfield definition for REG_A6XX_GMU_SPTPRAC_PWR_CLK_STATUS register is
different in A7XX family. Check the correct bits to see if GX is
collapsed on A7XX series.
Fixes: af66706acc ("drm/msm/a6xx: Add skeleton A7xx support")
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673358/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Update GMU register xml with additional definitions for a7x family.
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/673356/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
