New drivers:
- add QAIC acceleration driver
dma-buf:
- constify kobj_type structs
- Reject prime DMA-Buf attachment if get_sg_table is missing.
fbdev:
- cmdline parser fixes
- implement fbdev emulation for GEM DMA drivers
- always use shadow buffer in fbdev emulation helpers
dma-fence:
- add deadline hint to fences
- signal private stub fence
core:
- improve DisplayID 2.0 and EDID parsing
- add gem eviction function + callback
- prep to convert shmem helper to GEM resv lock
- move suballocator from radeon/amdgpu to core for Xe
- HPD polling fixes
- Documentation improvements
- Add atomic enable_plane callback
- use tgid instead of pid for client tracking
- DP: Add SDP Error Detection Configuration Register
- Add prime import/export to vram-helper
- use pci aperture helpers in more drivers
panel:
- Radxa 8/10HD support
- Samsung AMD495QA01 support
- Elida KD50T048A
- Sony TD4353
- Novatek NT36523
- STARRY 2081101QFH032011-53G
- B133UAN01.0
- AUO NE135FBM-N41
i915:
- More MTL enabling
- fix s/r problems with MEI/PXP
- Implement fb_dirty for PSR,FBC,DRRS fixes
- Fix eDP+DSI dual panel systems
- Fix issue #6333: "list_add corruption" and full system lockup from
performance monitoring
- Don't use stolen memory or BAR for ring buffers on LLC platforms
- Make sure DSM size has correct 1MiB granularity on Gen12+
- Whitelist COMMON_SLICE_CHICKEN3 for UMD access on Gen12+
- Add engine TLB invalidation for Meteorlake
- Fix GSC races on driver load/unload on Meteorlake+
- Make kobj_type structures constant
- Move fd_install after last use of fence
- wm/vblank refactoring
- display code refactoring
- Create GSC submission targeting HDCP and PXP usages on MTL+
- Enable HDCP2.x via GSC CS
- Fix context runtime accounting on sysfs fdinfo for heavy workloads
- Use i915 instead of dev_priv insied the file_priv structure
- Replace fake flex-array with flexible-array member
amdgpu:
- Make kobj structures const
- Generalize dmabuf import to work with KFD
- Add capped/uncapped workload handling for supported APUs
- Expose additional memory stats via fdinfo
- Register vga_switcheroo for apple-gmux
- Initial NBIO7.9, GC 9.4.3, GFXHUB 1.2, MMHUB 1.8 support
- Initial DC FAM infrastructure
- Link DC backlight to connector device rather than PCI device
- Add sysfs nodes for secondary VCN clocks
amdkfd:
- Make kobj structures const
- Support for exporting buffers via dmabuf
- Multi-VMA page migration fixes
- initial GC 9.4.3 support
radeon:
- iMac fix
- convert to client based fbdev emulation
habanalabs:
- Add opcodes to the CS ioctl to allow user to stall/resume specific engines
inside Gaudi2.
- INFO ioctl the amount of device memory that the driver
and f/w reserve for themselves.
- INFO ioctl a bit-mask of the available rotator engines
- INFO ioctl the register's address of the f/w that should
be used to trigger interrupts
- INFO ioctl two new opcodes to fetch information on h/w and f/w events
- Enable graceful reset mechanism for compute-reset.
- Align to the latest firmware specs.
- Enforce the release order of the compute device and dma-buf.
msm:
- UBWC decoder programming rework
- SM8550, SM8450 bindings update
- uapi C++ fix
- a3xx and a4xx devfreq support
- GPU and GEM updates to avoid allocations which could trigger
reclaim (shrinker) in fence signaling path
- dma-fence deadline hint support and wait-boost
- a640/650 speed bin support
cirrus:
- convert to regular atomic helpers
- add damage clipping
mediatek:
- 10-bit overlay support
- mt8195 support
- Only trigger DRM HPD events if bridge is attached
- Change the aux retries times when receiving AUX_DEFER
rockchip:
- add 4K support
vc4:
- use drm_gem_objects
virtio:
- allow KMS support to be disabled
- add damage clipping
vmwgfx:
- buffer object lifetime fixes
exynos:
- move MIPI DSI driver to drm bridge for iMX sharing
- use kernel fbdev emulation
panfrost:
- add support for mali MT81xx devices
- add speed binning support
lima:
- add usage stats
tegra:
- fbdev client conversion
vkms:
- Add primary plane positioning support
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Merge tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"There is a new Qualcomm accel driver for their QAIC, dma-fence got a
deadline feature added, lots of refactoring around fbdev emulation,
and the usual pre-release hw enablements from AMD and Intel and fixes
everywhere.
New drivers:
- add QAIC acceleration driver
dma-buf:
- constify kobj_type structs
- Reject prime DMA-Buf attachment if get_sg_table is missing.
fbdev:
- cmdline parser fixes
- implement fbdev emulation for GEM DMA drivers
- always use shadow buffer in fbdev emulation helpers
dma-fence:
- add deadline hint to fences
- signal private stub fence
core:
- improve DisplayID 2.0 and EDID parsing
- add gem eviction function + callback
- prep to convert shmem helper to GEM resv lock
- move suballocator from radeon/amdgpu to core for Xe
- HPD polling fixes
- Documentation improvements
- Add atomic enable_plane callback
- use tgid instead of pid for client tracking
- DP: Add SDP Error Detection Configuration Register
- Add prime import/export to vram-helper
- use pci aperture helpers in more drivers
panel:
- Radxa 8/10HD support
- Samsung AMD495QA01 support
- Elida KD50T048A
- Sony TD4353
- Novatek NT36523
- STARRY 2081101QFH032011-53G
- B133UAN01.0
- AUO NE135FBM-N41
i915:
- More MTL enabling
- fix s/r problems with MEI/PXP
- Implement fb_dirty for PSR,FBC,DRRS fixes
- Fix eDP+DSI dual panel systems
- Fix issue #6333: "list_add corruption" and full system lockup from
performance monitoring
- Don't use stolen memory or BAR for ring buffers on LLC platforms
- Make sure DSM size has correct 1MiB granularity on Gen12+
- Whitelist COMMON_SLICE_CHICKEN3 for UMD access on Gen12+
- Add engine TLB invalidation for Meteorlake
- Fix GSC races on driver load/unload on Meteorlake+
- Make kobj_type structures constant
- Move fd_install after last use of fence
- wm/vblank refactoring
- display code refactoring
- Create GSC submission targeting HDCP and PXP usages on MTL+
- Enable HDCP2.x via GSC CS
- Fix context runtime accounting on sysfs fdinfo for heavy workloads
- Use i915 instead of dev_priv insied the file_priv structure
- Replace fake flex-array with flexible-array member
amdgpu:
- Make kobj structures const
- Generalize dmabuf import to work with KFD
- Add capped/uncapped workload handling for supported APUs
- Expose additional memory stats via fdinfo
- Register vga_switcheroo for apple-gmux
- Initial NBIO7.9, GC 9.4.3, GFXHUB 1.2, MMHUB 1.8 support
- Initial DC FAM infrastructure
- Link DC backlight to connector device rather than PCI device
- Add sysfs nodes for secondary VCN clocks
amdkfd:
- Make kobj structures const
- Support for exporting buffers via dmabuf
- Multi-VMA page migration fixes
- initial GC 9.4.3 support
radeon:
- iMac fix
- convert to client based fbdev emulation
habanalabs:
- Add opcodes to the CS ioctl to allow user to stall/resume specific
engines inside Gaudi2.
- INFO ioctl the amount of device memory that the driver and f/w
reserve for themselves.
- INFO ioctl a bit-mask of the available rotator engines
- INFO ioctl the register's address of the f/w that should be used to
trigger interrupts
- INFO ioctl two new opcodes to fetch information on h/w and f/w
events
- Enable graceful reset mechanism for compute-reset.
- Align to the latest firmware specs.
- Enforce the release order of the compute device and dma-buf.
msm:
- UBWC decoder programming rework
- SM8550, SM8450 bindings update
- uapi C++ fix
- a3xx and a4xx devfreq support
- GPU and GEM updates to avoid allocations which could trigger
reclaim (shrinker) in fence signaling path
- dma-fence deadline hint support and wait-boost
- a640/650 speed bin support
cirrus:
- convert to regular atomic helpers
- add damage clipping
mediatek:
- 10-bit overlay support
- mt8195 support
- Only trigger DRM HPD events if bridge is attached
- Change the aux retries times when receiving AUX_DEFER
rockchip:
- add 4K support
vc4:
- use drm_gem_objects
virtio:
- allow KMS support to be disabled
- add damage clipping
vmwgfx:
- buffer object lifetime fixes
exynos:
- move MIPI DSI driver to drm bridge for iMX sharing
- use kernel fbdev emulation
panfrost:
- add support for mali MT81xx devices
- add speed binning support
lima:
- add usage stats
tegra:
- fbdev client conversion
vkms:
- Add primary plane positioning support"
* tag 'drm-next-2023-04-24' of git://anongit.freedesktop.org/drm/drm: (1495 commits)
drm/i915/dp_mst: Fix active port PLL selection for secondary MST streams
drm/exynos: Implement fbdev emulation as in-kernel client
drm/exynos: Initialize fbdev DRM client
drm/exynos: Remove fb_helper from struct exynos_drm_private
drm/exynos: Remove struct exynos_drm_fbdev
drm/exynos: Remove exynos_gem from struct exynos_drm_fbdev
drm/i915: Fix memory leaks in i915 selftests
drm/i915: Make intel_get_crtc_new_encoder() less oopsy
drm/i915/gt: Avoid out-of-bounds access when loading HuC
drm/amdgpu: add some basic elements for multiple XCD case
drm/amdgpu: move vmhub out of amdgpu_ring_funcs (v4)
Revert "drm/amdgpu: enable ras for mp0 v13_0_10 on SRIOV"
drm/amdgpu: add common ip block for GC 9.4.3
drm/amd/display: Add logging when DP link training Clock recovery is Successful
drm/amdgpu: add common early init support for GC 9.4.3
drm/amdgpu: switch to v9_4_3 gfx_funcs callbacks for GC 9.4.3
drm/amd/display: Add logging when setting DP sink power state fails
drm/amdkfd: Add gfx_target_version for GC 9.4.3
drm/amdkfd: Enable HW_UPDATE_RPTR on GC 9.4.3
drm/amdgpu: reserve the old gc_11_0_*_mes.bin
...
The most notable updates this time are for Qualcomm Snapdragon platforms.
The Inline-Crypto-Engine gets a new DT binding and driver. A number of
drivers now support additional Snapdragon variants, in particular the
rsc, scm, geni, bwm, glink and socinfo, while the llcc (edac) and rpm
drivers get notable functionality updates.
Updates on other platforms include:
- Various updates to the Mediatek mutex and mmsys drivers, including
support for the Helio X10 SoC
- Support for unidirectional mailbox channels in Arm SCMI firmware
- Support for per cpu asynchronous notification in OP-TEE firmware
- Minor updates for memory controller drivers.
- Minor updates for Renesas, TI, Amlogic, Apple, Broadcom, Tegra,
Allwinner, Versatile Express, Canaan, Microchip, Mediatek and i.MX
SoC drivers, mainly updating the use of MODULE_LICENSE() macros and
obsolete DT driver interfaces.
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Merge tag 'soc-drivers-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"The most notable updates this time are for Qualcomm Snapdragon
platforms. The Inline-Crypto-Engine gets a new DT binding and driver,
and a number of drivers now support additional Snapdragon variants, in
particular the rsc, scm, geni, bwm, glink and socinfo, while the llcc
(edac) and rpm drivers get notable functionality updates.
Updates on other platforms include:
- Various updates to the Mediatek mutex and mmsys drivers, including
support for the Helio X10 SoC
- Support for unidirectional mailbox channels in Arm SCMI firmware
- Support for per cpu asynchronous notification in OP-TEE firmware
- Minor updates for memory controller drivers.
- Minor updates for Renesas, TI, Amlogic, Apple, Broadcom, Tegra,
Allwinner, Versatile Express, Canaan, Microchip, Mediatek and i.MX
SoC drivers, mainly updating the use of MODULE_LICENSE() macros and
obsolete DT driver interfaces"
* tag 'soc-drivers-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
soc: ti: smartreflex: Simplify getting the opam_sr pointer
bus: vexpress-config: Add explicit of_platform.h include
soc: mediatek: Kconfig: Add MTK_CMDQ dependency to MTK_MMSYS
memory: mtk-smi: mt8365: Add SMI Support
dt-bindings: memory-controllers: mediatek,smi-larb: add mt8365
dt-bindings: memory-controllers: mediatek,smi-common: add mt8365
memory: tegra: read values from correct device
dt-bindings: crypto: Add Qualcomm Inline Crypto Engine
soc: qcom: Make the Qualcomm UFS/SDCC ICE a dedicated driver
dt-bindings: firmware: document Qualcomm QCM2290 SCM
soc: qcom: rpmh-rsc: Support RSC v3 minor versions
soc: qcom: smd-rpm: Use GFP_ATOMIC in write path
soc/tegra: fuse: Remove nvmem root only access
soc/tegra: cbb: tegra194: Use of_address_count() helper
soc/tegra: cbb: Remove MODULE_LICENSE in non-modules
ARM: tegra: Remove MODULE_LICENSE in non-modules
soc/tegra: flowctrl: Use devm_platform_get_and_ioremap_resource()
soc: tegra: cbb: Drop empty platform remove function
firmware: arm_scmi: Add support for unidirectional mailbox channels
dt-bindings: firmware: arm,scmi: Support mailboxes unidirectional channels
...
o MAINTAINERS files additions and changes.
o Fix hotplug warning in nohz code.
o Tick dependency changes by Zqiang.
o Lazy-RCU shrinker fixes by Zqiang.
o rcu-tasks stall reporting improvements by Neeraj.
o Initial changes for renaming of k[v]free_rcu() to its new k[v]free_rcu_mightsleep()
name for robustness.
o Documentation Updates:
o Significant changes to srcu_struct size.
o Deadlock detection for srcu_read_lock() vs synchronize_srcu() from Boqun.
o rcutorture and rcu-related tool, which are targeted for v6.4 from Boqun's tree.
o Other misc changes.
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Merge tag 'rcu.6.4.april5.2023.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux
Pull RCU updates from Joel Fernandes:
- Updates and additions to MAINTAINERS files, with Boqun being added to
the RCU entry and Zqiang being added as an RCU reviewer.
I have also transitioned from reviewer to maintainer; however, Paul
will be taking over sending RCU pull-requests for the next merge
window.
- Resolution of hotplug warning in nohz code, achieved by fixing
cpu_is_hotpluggable() through interaction with the nohz subsystem.
Tick dependency modifications by Zqiang, focusing on fixing usage of
the TICK_DEP_BIT_RCU_EXP bitmask.
- Avoid needless calls to the rcu-lazy shrinker for CONFIG_RCU_LAZY=n
kernels, fixed by Zqiang.
- Improvements to rcu-tasks stall reporting by Neeraj.
- Initial renaming of k[v]free_rcu() to k[v]free_rcu_mightsleep() for
increased robustness, affecting several components like mac802154,
drbd, vmw_vmci, tracing, and more.
A report by Eric Dumazet showed that the API could be unknowingly
used in an atomic context, so we'd rather make sure they know what
they're asking for by being explicit:
https://lore.kernel.org/all/20221202052847.2623997-1-edumazet@google.com/
- Documentation updates, including corrections to spelling,
clarifications in comments, and improvements to the srcu_size_state
comments.
- Better srcu_struct cache locality for readers, by adjusting the size
of srcu_struct in support of SRCU usage by Christoph Hellwig.
- Teach lockdep to detect deadlocks between srcu_read_lock() vs
synchronize_srcu() contributed by Boqun.
Previously lockdep could not detect such deadlocks, now it can.
- Integration of rcutorture and rcu-related tools, targeted for v6.4
from Boqun's tree, featuring new SRCU deadlock scenarios, test_nmis
module parameter, and more
- Miscellaneous changes, various code cleanups and comment improvements
* tag 'rcu.6.4.april5.2023.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux: (71 commits)
checkpatch: Error out if deprecated RCU API used
mac802154: Rename kfree_rcu() to kvfree_rcu_mightsleep()
rcuscale: Rename kfree_rcu() to kfree_rcu_mightsleep()
ext4/super: Rename kfree_rcu() to kfree_rcu_mightsleep()
net/mlx5: Rename kfree_rcu() to kfree_rcu_mightsleep()
net/sysctl: Rename kvfree_rcu() to kvfree_rcu_mightsleep()
lib/test_vmalloc.c: Rename kvfree_rcu() to kvfree_rcu_mightsleep()
tracing: Rename kvfree_rcu() to kvfree_rcu_mightsleep()
misc: vmw_vmci: Rename kvfree_rcu() to kvfree_rcu_mightsleep()
drbd: Rename kvfree_rcu() to kvfree_rcu_mightsleep()
rcu: Protect rcu_print_task_exp_stall() ->exp_tasks access
rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed
rcu-tasks: Report stalls during synchronize_srcu() in rcu_tasks_postscan()
rcu: Permit start_poll_synchronize_rcu_expedited() to be invoked early
rcu: Remove never-set needwake assignment from rcu_report_qs_rdp()
rcu: Register rcu-lazy shrinker only for CONFIG_RCU_LAZY=y kernels
rcu: Fix missing TICK_DEP_MASK_RCU_EXP dependency check
rcu: Fix set/clear TICK_DEP_BIT_RCU_EXP bitmask race
rcu/trace: use strscpy() to instead of strncpy()
tick/nohz: Fix cpu_is_hotpluggable() by checking with nohz subsystem
...
The Qualcomm SCM driver will now always clear the download bit, avoiding
entering download mode on a clean reboot because the bootloader left it
set. The vmid bitmap passed to qcom_scm_assign_mem() is transitioned to
a well defined size. SM6375 support is added, and SC8180X,
QDU1000/QRU1000, IPQ5332 and IPQ9574 compatibles are documented.
GENI gains support for newer hardware with deeper FIFOs.
The BWMON driver is updated to better handle the two register blocks,
which are not consistent between MSM8998 and newer platforms.
The LLCC driver no longer assumes a fixes stride across the various
banks, and instead acquire the bank placement from DeviceTree. EDAC
support for polling is introduced. EDAC support on SDM845 is disabled,
as its been observed that accessing relevant registers is not permitted
on most devices.
PMIC GLINK is reworked to support defining which auxiliary children to
spawn per platform, support for spawning a UCSI child is added and
SM8450 and SM8550 is introduced.
The RPM power-domain driver is cleaned up by moving and generalizing
structures that are common between platforms, rather than duplicating
everything. Macros are replaced with just direct definition of the
relevant structures. Support for defining parent relationships between
the power-domains is introduced, like it has been in rpmhpd for a long
time.
Number of processors has gone up, so max processor count in SMEM
is bumped again. Error handling in SMSM is cleaned up using
dev_err_probe().
Socinfo is taught about IPQ9574, QCM2290, QRB2210, QRB4210, SM7150,
SA8775P and a number of PMICs.
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Merge tag 'qcom-drivers-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
Qualcomm driver updates for v6.4
The Qualcomm SCM driver will now always clear the download bit, avoiding
entering download mode on a clean reboot because the bootloader left it
set. The vmid bitmap passed to qcom_scm_assign_mem() is transitioned to
a well defined size. SM6375 support is added, and SC8180X,
QDU1000/QRU1000, IPQ5332 and IPQ9574 compatibles are documented.
GENI gains support for newer hardware with deeper FIFOs.
The BWMON driver is updated to better handle the two register blocks,
which are not consistent between MSM8998 and newer platforms.
The LLCC driver no longer assumes a fixes stride across the various
banks, and instead acquire the bank placement from DeviceTree. EDAC
support for polling is introduced. EDAC support on SDM845 is disabled,
as its been observed that accessing relevant registers is not permitted
on most devices.
PMIC GLINK is reworked to support defining which auxiliary children to
spawn per platform, support for spawning a UCSI child is added and
SM8450 and SM8550 is introduced.
The RPM power-domain driver is cleaned up by moving and generalizing
structures that are common between platforms, rather than duplicating
everything. Macros are replaced with just direct definition of the
relevant structures. Support for defining parent relationships between
the power-domains is introduced, like it has been in rpmhpd for a long
time.
Number of processors has gone up, so max processor count in SMEM
is bumped again. Error handling in SMSM is cleaned up using
dev_err_probe().
Socinfo is taught about IPQ9574, QCM2290, QRB2210, QRB4210, SM7150,
SA8775P and a number of PMICs.
* tag 'qcom-drivers-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (51 commits)
dt-bindings: firmware: document Qualcomm SC8180X SCM
dt-bindings: sram: qcom,imem: document SM6375 IMEM
soc: qcom: icc-bwmon: Handle global registers correctly
soc: qcom: icc-bwmon: Remove unused struct member
soc: qcom: smsm: Use dev_err_probe()
firmware: qcom_scm: Add SM6375 compatible
soc: qcom: llcc: Add configuration data for SM7150
dt-bindings: arm: msm: Add LLCC for SM7150
dt-bindings: soc: qcom: smd-rpm: re-add missing qcom,rpm-msm8994
soc: qcom: pmic_glink: register ucsi aux device
dt-bindings: soc: qcom: qcom,pmic-glink: document SM8550 compatible
dt-bindings: soc: qcom: qcom,pmic-glink: document SM8450 compatible
firmware: qcom_scm: Clear download bit during reboot
dt-bindings: soc: qcom: aoss: Document QDU1000/QRU1000 compatible
dt-bindings: firmware: qcom,scm: Update QDU1000/QRU1000 compatible
dt-bindings: soc: qcom: smd-rpm: Add IPQ9574 compatible
firmware: qcom_scm: Use fixed width src vm bitmap
dt-bindings: firmware: qcom,scm: document IPQ5332 SCM
dt-bindings: scm: Add compatible for IPQ9574
soc: qcom: rpmpd: Remove useless comments
...
Link: https://lore.kernel.org/r/20230410152421.4477-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
MAX_ORDER is not inclusive: the maximum allocation order buddy allocator
can deliver is MAX_ORDER-1.
Fix MAX_ORDER usage in genwqe driver.
Link: https://lkml.kernel.org/r/20230315113133.11326-6-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Frank Haverkamp <haver@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
During fuzzing, a general protection fault is observed in
vmci_host_poll().
general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf]
RIP: 0010:__lock_acquire+0xf3/0x5e00 kernel/locking/lockdep.c:4926
<- omitting registers ->
Call Trace:
<TASK>
lock_acquire+0x1a4/0x4a0 kernel/locking/lockdep.c:5672
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xb3/0x100 kernel/locking/spinlock.c:162
add_wait_queue+0x3d/0x260 kernel/sched/wait.c:22
poll_wait include/linux/poll.h:49 [inline]
vmci_host_poll+0xf8/0x2b0 drivers/misc/vmw_vmci/vmci_host.c:174
vfs_poll include/linux/poll.h:88 [inline]
do_pollfd fs/select.c:873 [inline]
do_poll fs/select.c:921 [inline]
do_sys_poll+0xc7c/0x1aa0 fs/select.c:1015
__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll+0x2cc/0x330 fs/select.c:1101
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4e/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Example thread interleaving that causes the general protection fault
is as follows:
CPU1 (vmci_host_poll) CPU2 (vmci_host_do_init_context)
----- -----
// Read uninitialized context
context = vmci_host_dev->context;
// Initialize context
vmci_host_dev->context = vmci_ctx_create();
vmci_host_dev->ct_type = VMCIOBJ_CONTEXT;
if (vmci_host_dev->ct_type == VMCIOBJ_CONTEXT) {
// Dereferencing the wrong pointer
poll_wait(..., &context->host_context);
}
In this scenario, vmci_host_poll() reads vmci_host_dev->context first,
and then reads vmci_host_dev->ct_type to check that
vmci_host_dev->context is initialized. However, since these two reads
are not atomically executed, there is a chance of a race condition as
described above.
To fix this race condition, read vmci_host_dev->context after checking
the value of vmci_host_dev->ct_type so that vmci_host_poll() always
reads an initialized context.
Reported-by: Dae R. Jeong <threeearcat@gmail.com>
Fixes: 8bf503991f ("VMCI: host side driver implementation.")
Signed-off-by: Dae R. Jeong <threeearcat@gmail.com>
Link: https://lore.kernel.org/r/ZCGFsdBAU4cYww5l@dragonet
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kvfree_rcu() macro's single-argument form is deprecated. Therefore
switch to the new kvfree_rcu_mightsleep() variant. The goal is to
avoid accidental use of the single-argument forms, which can introduce
functionality bugs in atomic contexts and latency bugs in non-atomic
contexts.
Cc: Bryan Tan <bryantan@vmware.com>
Cc: Vishnu Dasa <vdasa@vmware.com>
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
We need the fixes in here for testing, as well as the driver core
changes for documentation updates to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
clang with W=1 reports
drivers/misc/hpilo.c:395:19: error: unused function
'is_device_reset' [-Werror,-Wunused-function]
static inline int is_device_reset(struct ilo_hwinfo *hw)
^
This function is not used, so remove it.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20230319170447.1707655-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is only a single user of the UUID uAPI, let's make it
part of that user.
The way it's done is to prevent compilation time breakage for
the user space that does
#include <linux/uuid.h>
In the future MEI user space tools can switch over to use mei_uuid.h.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230310170747.22782-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It requires to move intel specific HDCP API structures to
i915_hdcp_interface.h from driver/misc/mei/hdcp/mei_hdcp.h
so that any content protection fw interfaces can use these
structures.
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316092927.668980-5-suraj.kandpal@intel.com
pre MTL we interact with mei interface to talk to
firmware and enable CP but going forward we will talk to gsc cs
because of which we are making all names for HDCP helpers and
structures generic as either mei or gsc cs maybe used.
Change the include/drm/i915_mei_hdcp_interface.h to
include/drm/i915_hdcp_interface.h
Change the i915_hdcp_interface.h header naming convention to
suit generic f/w type.
%s/MEI_/HDCP_
%s/mei_dev/hdcp_dev
Change structure name Accordingly.
%s/i915_hdcp_comp_master/i915_hdcp_master
%s/i915_hdcp_component_ops/i915_hdcp_ops
--v6
-make each patch build individually [Jani]
--v8
-change ME FW to ME/GSC FW [Ankit]
-fix formatting issue [Ankit]
--v9
-fix commit message and header [Uma]
--v10
-rename comp variable [Uma]
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230316092927.668980-3-suraj.kandpal@intel.com
We need the mainline fixes in this branch for testing and other
subsystem changes to be based properly on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The property 'st,default-rate' is tested for presence, but the value is
ignored and the 'default_rate' value is updated with a stale 'val'
value. Fix this by using of_property_read_u32().
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230310144713.1543613-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230310144713.1543683-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230310144713.1543544-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The module pointer in class_create() never actually did anything, and it
shouldn't have been requred to be set as a parameter even if it did
something. So just remove it and fix up all callers of the function in
the kernel tree at the same time.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to manually set the owner of a struct class, as the
registering function does it automatically, so remove all of the
explicit settings from various drivers that did so as it is unneeded.
This allows us to remove this pointer entirely from this structure going
forward.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230313181843.1207845-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The maximum VMID for assign_mem is 63. Use a u64 to represent this
bitmap instead of architecture-dependent "unsigned int" which varies in
size on 32-bit and 64-bit platforms.
Acked-by: Kalle Valo <kvalo@kernel.org> (ath10k)
Tested-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213181832.3489174-1-quic_eberman@quicinc.com
In high temperature condition, JEDEC spec requires memory controller to
double the refresh rate. This commit adds event_dimm_2x_refresh sysfs
to report that events for all memory channels.
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20230310083416.3670980-2-quan@os.amperecomputing.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/lkml/20221118224540.619276-483-uwe@kleine-koenig.org
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since f26e58bf6f ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230307202435.880921-1-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"priv->ext_config_dev_aspm" was never set to a non-zero value. Therefore,
alcor_pci_aspm_ctrl(priv, 1) did nothing, and alcor_pci_aspm_ctrl(priv, 0)
always disabled ASPM in the device and the upstream bridge.
The driver disabled ASPM in alcor_pci_probe() and alcor_resume(), so it's
possible the device doesn't work well when ASPM is enabled.
Remove all the ASPM-related code and replace the alcor_pci_aspm_ctrl(0)
calls with pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
PCIE_LINK_STATE_L1), which asks the PCI core to disable ASPM.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20230307213816.886308-1-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Although this driver is a good use case for having a directory
that is not other directories and then subdirectories with more
entries, the usage of register_sysctl_table() can recurse and
increases complexity so to avoid that just split out the
registration to each directory with its own entries.
register_sysctl_table() is a deprecated compatibility wrapper.
register_sysctl() can do the directory creation for you so just use
that.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lore.kernel.org/r/20230302204612.782387-6-mcgrof@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The current code tries to get an associated clk, ignores any errors in the
process and if there is a clock enables it unconditionally for the whole
lifetime of the sram device.
Instead use an "optional" variant of devm_clk_get() which handles the case
where no clk is needed for the sram device and do proper error handling
for the remaining error cases. Also use an "enabled" variant of
devm_clk_get() to simplify. With that .probe() is the only function using
struct sram_dev::clk, so it can be replaced by a local variable.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20230302091251.1852454-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As usual, there are lots of minor driver changes across SoC platforms
from NXP, Amlogic, AMD Zynq, Mediatek, Qualcomm, Apple and Samsung.
These usually add support for additional chip variations in existing
drivers, but also add features or bugfixes.
The SCMI firmware subsystem gains a unified raw userspace interface
through debugfs, which can be used for validation purposes.
Newly added drivers include:
- New power management drivers for StarFive JH7110, Allwinner D1 and
Renesas RZ/V2M
- A driver for Qualcomm battery and power supply status
- A SoC device driver for identifying Nuvoton WPCM450 chips
- A regulator coupler driver for Mediatek MT81xxv
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Merge tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"As usual, there are lots of minor driver changes across SoC platforms
from NXP, Amlogic, AMD Zynq, Mediatek, Qualcomm, Apple and Samsung.
These usually add support for additional chip variations in existing
drivers, but also add features or bugfixes.
The SCMI firmware subsystem gains a unified raw userspace interface
through debugfs, which can be used for validation purposes.
Newly added drivers include:
- New power management drivers for StarFive JH7110, Allwinner D1 and
Renesas RZ/V2M
- A driver for Qualcomm battery and power supply status
- A SoC device driver for identifying Nuvoton WPCM450 chips
- A regulator coupler driver for Mediatek MT81xxv"
* tag 'soc-drivers-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits)
power: supply: Introduce Qualcomm PMIC GLINK power supply
soc: apple: rtkit: Do not copy the reg state structure to the stack
soc: sunxi: SUN20I_PPU should depend on PM
memory: renesas-rpc-if: Remove redundant division of dummy
soc: qcom: socinfo: Add IDs for IPQ5332 and its variant
dt-bindings: arm: qcom,ids: Add IDs for IPQ5332 and its variant
dt-bindings: power: qcom,rpmpd: add RPMH_REGULATOR_LEVEL_LOW_SVS_L1
firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/
MAINTAINERS: Update qcom CPR maintainer entry
dt-bindings: firmware: document Qualcomm SM8550 SCM
dt-bindings: firmware: qcom,scm: add qcom,scm-sa8775p compatible
soc: qcom: socinfo: Add Soc IDs for IPQ8064 and variants
dt-bindings: arm: qcom,ids: Add Soc IDs for IPQ8064 and variants
soc: qcom: socinfo: Add support for new field in revision 17
soc: qcom: smd-rpm: Add IPQ9574 compatible
soc: qcom: pmic_glink: remove redundant calculation of svid
soc: qcom: stats: Populate all subsystem debugfs files
dt-bindings: soc: qcom,rpmh-rsc: Update to allow for generic nodes
soc: qcom: pmic_glink: add CONFIG_NET/CONFIG_OF dependencies
soc: qcom: pmic_glink: Introduce altmode support
...
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Merge tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Rework portdrv shutdown so it disables interrupts but doesn't
disable bus mastering, which leads to hangs on Loongson LS7A
- Add mechanism to prevent Max_Read_Request_Size (MRRS) increases,
again to avoid hardware issues on Loongson LS7A (and likely other
devices based on DesignWare IP)
- Ignore devices with a firmware (DT or ACPI) node that says the
device is disabled
Resource management:
- Distribute spare resources to unconfigured hotplug bridges at
boot-time (not just when hot-adding such a bridge), which makes
hot-adding devices to docks work better. Tried this in v6.1 but had
to revert for regressions, so try again
- Fix root bus issue that dropped resources that happened to end
at 0, e.g., [bus 00]
PCI device hotplug:
- Remove device locking when marking device as disconnected so this
doesn't have to wait for concurrent driver bind/unbind to complete
- Quirk more Qualcomm bridges that don't fully implement the PCIe
Slot Status 'Command Completed' bit
Power management:
- Account for _S0W of the target bridge in acpi_pci_bridge_d3() so we
don't miss hot-add notifications for USB4 docks, Thunderbolt, etc
Reset:
- Observe delay after reset, e.g., resuming from system sleep,
regardless of whether a bridge can suspend to D3cold at runtime
- Wait for secondary bus to become ready after a bridge reset
Virtualization:
- Avoid FLR on some AMD FCH AHCI adapters where it doesn't work
- Allow independent IOMMU groups for some Wangxun NICs that prevent
peer-to-peer transactions but don't advertise an ACS Capability
Error handling:
- Configure End-to-End-CRC (ECRC) only if Linux owns the AER
Capability
- Remove redundant Device Control Error Reporting Enable in the AER
service driver since this is already done for all devices during
enumeration
ASPM:
- Add pci_enable_link_state() interface to allow drivers to enable
ASPM link state
Endpoint framework:
- Move dra7xx and tegra194 linkup processing from hard IRQ to
threaded IRQ handler
- Add a separate lock for endpoint controller list of endpoint
function drivers to prevent deadlock in callbacks
- Pass events from endpoint controller to endpoint function drivers
via callbacks instead of notifiers
Synopsys DesignWare eDMA controller driver (acked by Vinod):
- Fix CPU vs PCI address issues
- Fix source vs destination address issues
- Fix issues with interleaved transfer semantics
- Fix channel count initialization issue (issue still exists in
several other drivers)
- Clean up and improve debugfs usage so it will work on platforms
with several eDMA devices
Baikal T-1 PCIe controller driver:
- Set a 64-bit DMA mask
Freescale i.MX6 PCIe controller driver:
- Add i.MX8MM, i.MX8MQ, i.MX8MP endpoint mode DT binding and driver
support
Intel VMD host bridge driver:
- Add quirk to configure PCIe ASPM and LTR. This is normally done by
BIOS, and will be for future products
Marvell MVEBU PCIe controller driver:
- Mark this driver as broken in Kconfig since bugs prevent its daily
usage
MediaTek MT7621 PCIe controller driver:
- Delay PHY port initialization to improve boot reliability for ZBT
WE1326, ZBT WF3526-P, and some Netgear models
Qualcomm PCIe controller driver:
- Add MSM8998 DT compatible string
- Unify MSM8996 and MSM8998 clock orderings
- Add SM8350 DT binding and driver support
- Add IPQ8074 Gen3 DT binding and driver support
- Correct qcom,perst-regs in DT binding
- Add qcom_pcie_host_deinit() so the PHY is powered off and
regulators and clocks are disabled on late host-init errors
Socionext UniPhier Pro5 controller driver:
- Clean up uniphier-ep reg, clocks, resets, and their names in DT
binding
Synopsys DesignWare PCIe controller driver:
- Restrict coherent DMA mask to 32 bits for MSI, but allow controller
drivers to set 64-bit streaming DMA mask
- Add eDMA engine support in both Root Port and Endpoint controllers
Miscellaneous:
- Remove MODULE_LICENSE from boolean drivers so they don't look like
modules so modprobe can complain about them"
* tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (86 commits)
PCI: dwc: Add Root Port and Endpoint controller eDMA engine support
PCI: bt1: Set 64-bit DMA mask
PCI: dwc: Restrict only coherent DMA mask for MSI address allocation
dmaengine: dw-edma: Prepare dw_edma_probe() for builtin callers
dmaengine: dw-edma: Depend on DW_EDMA instead of selecting it
dmaengine: dw-edma: Add mem-mapped LL-entries support
PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules
PCI: hv: Drop duplicate PCI_MSI dependency
PCI/P2PDMA: Annotate RCU dereference
PCI/sysfs: Constify struct kobj_type pci_slot_ktype
PCI: hotplug: Allow marking devices as disconnected during bind/unbind
PCI: pciehp: Add Qualcomm quirk for Command Completed erratum
PCI: qcom: Add IPQ8074 Gen3 port support
dt-bindings: PCI: qcom: Add IPQ8074 Gen3 port
dt-bindings: PCI: qcom: Sort compatibles alphabetically
PCI: qcom: Fix host-init error handling
PCI: qcom: Add SM8350 support
dt-bindings: PCI: qcom: Add SM8350
dt-bindings: PCI: qcom-ep: Correct qcom,perst-regs
dt-bindings: PCI: qcom: Unify MSM8996 and MSM8998 clock order
...
Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work falls
into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be moved
into read-only memory (i.e. const) The recent work with Rust has
pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only making
things safer overall. This is the contuation of that work (started
last release with kobject changes) in moving struct bus_type to be
constant. We didn't quite make it for this release, but the
remaining patches will be finished up for the release after this
one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work
falls into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be
moved into read-only memory (i.e. const) The recent work with Rust
has pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only
making things safer overall. This is the contuation of that work
(started last release with kobject changes) in moving struct
bus_type to be constant. We didn't quite make it for this release,
but the remaining patches will be finished up for the release after
this one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems"
[ Geert Uytterhoeven points out that that last sentence isn't true, and
that there's a pending report that has a fix that is queued up - Linus ]
* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
OPP: fix error checking in opp_migrate_dentry()
debugfs: update comment of debugfs_rename()
i3c: fix device.h kernel-doc warnings
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
Revert "driver core: add error handling for devtmpfs_create_node()"
Revert "devtmpfs: add debug info to handle()"
Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
driver core: cpu: don't hand-override the uevent bus_type callback.
devtmpfs: remove return value of devtmpfs_delete_node()
devtmpfs: add debug info to handle()
driver core: add error handling for devtmpfs_create_node()
driver core: bus: update my copyright notice
driver core: bus: add bus_get_dev_root() function
driver core: bus: constify bus_unregister()
driver core: bus: constify some internal functions
driver core: bus: constify bus_get_kset()
driver core: bus: constify bus_register/unregister_notifier()
driver core: remove private pointer from struct bus_type
...
Here is the large set of driver changes for char/misc drivers and other
smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem seems
under very active development recently. This required also merging
in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver subsystem updates from Greg KH:
"Here is the large set of driver changes for char/misc drivers and
other smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem
seems under very active development recently. This required also
merging in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the
shortlog
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits)
scripts/tags.sh: fix incompatibility with PCRE2
firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries
mei: lower the log level for non-fatal failed messages
mei: bus: disallow driver match while dismantling device
misc: vmw_balloon: fix memory leak with using debugfs_lookup()
nvmem: stm32: fix OPTEE dependency
dt-bindings: nvmem: qfprom: add IPQ8074 compatible
nvmem: qcom-spmi-sdam: register at device init time
nvmem: rave-sp-eeprm: fix kernel-doc bad line warning
nvmem: stm32: detect bsec pta presence for STM32MP15x
nvmem: stm32: add OP-TEE support for STM32MP13x
nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of()
nvmem: core: add nvmem_add_one_cell()
nvmem: core: drop the removal of the cells in nvmem_add_cells()
nvmem: core: move struct nvmem_cell_info to nvmem-provider.h
nvmem: core: add an index parameter to the cell
of: property: add #nvmem-cell-cells property
of: property: make #.*-cells optional for simple props
of: base: add of_parse_phandle_with_optional_args()
net: add helper eth_addr_add()
...
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()") which
does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter". These filters provide users
with finer-grained control over DAMOS's actions. SeongJae has also done
some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series "mm:
support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap
PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with his
series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings. The previous BPF-based approach had
shortcomings. See "mm: In-kernel support for memory-deny-write-execute
(MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a per-node
basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage during
compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in ths
series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's series
"mm, arch: add generic implementation of pfn_valid() for FLATMEM" and
"fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest of
the kernel in the series "Simplify the external interface for GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the series
"mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
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Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X
bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()")
which does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter".
These filters provide users with finer-grained control over DAMOS's
actions. SeongJae has also done some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series
"mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with
swap PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with
his series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings.
The previous BPF-based approach had shortcomings. See "mm: In-kernel
support for memory-deny-write-execute (MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a
per-node basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage
during compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in
ths series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier
functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's
series "mm, arch: add generic implementation of pfn_valid() for
FLATMEM" and "fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest
of the kernel in the series "Simplify the external interface for
GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the
series "mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
* tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (505 commits)
include/linux/migrate.h: remove unneeded externs
mm/memory_hotplug: cleanup return value handing in do_migrate_range()
mm/uffd: fix comment in handling pte markers
mm: change to return bool for isolate_movable_page()
mm: hugetlb: change to return bool for isolate_hugetlb()
mm: change to return bool for isolate_lru_page()
mm: change to return bool for folio_isolate_lru()
objtool: add UACCESS exceptions for __tsan_volatile_read/write
kmsan: disable ftrace in kmsan core code
kasan: mark addr_has_metadata __always_inline
mm: memcontrol: rename memcg_kmem_enabled()
sh: initialize max_mapnr
m68k/nommu: add missing definition of ARCH_PFN_OFFSET
mm: percpu: fix incorrect size in pcpu_obj_full_size()
maple_tree: reduce stack usage with gcc-9 and earlier
mm: page_alloc: call panic() when memoryless node allocation fails
mm: multi-gen LRU: avoid futile retries
migrate_pages: move THP/hugetlb migration support check to simplify code
migrate_pages: batch flushing TLB
migrate_pages: share more code between _unmap and _move
...
Removals:
- remove legacy dri1 drivers -
- i810, mga, r128, savage, sis, tdfx, via
New driver:
- intel VPU accelerator driver
- habanalabs comes via drm tree now
drm/core:
- use drm_dbg_ helpers in several places
- Document defaults for CRTC backgrounds
- Document use of drm_minor
edid:
- improve mode parsing and refactoring
connector:
- support analog TV mode property
media:
- add some common formats
udmabuf:
- add vmap/vunmap methods
fourcc:
- add XRGB1555 and RGB565 formats
- document open source user waiver
firmware:
- fix color-format selection for system framebuffer
format-helper:
- Add conversion from XRGB8888 to various sysfb formats
- Make XRGB8888 the only driver-emulated legacy format
- Add conversion from XRGB8888 to XBGR8888 and ABGR8888
fb-helper:
- fix preferred depth and bpp values across drivers
- Avoid blank consoles from selecting an incorrect color format
probe-helper:
- Enable/disable HPD on connectors
scheduler:
- Fix lockup in drm_sched_entity_kill()
- Deprecate drm_sched_resubmit_jobs()
bridge:
- remove unused functions
- implement i2c probe_new in various drivers
- ite-it6505: Locking fixes, Cache EDID data
- ite-it66121: Support IT6610 chip
- lontium-tl9611: Fix HDMI on DragonBoard 845c
- parade-ps8640: Use atomic bridge functions
- Support i.MX93 LDB plus DT bindings
debugfs:
- add per device helpers and convert drivers
displayport:
- mst fixes
- add DP adaptive sync DPCD definitions
fbdev:
- always pick 32bpp as default
- remove some unused code
simpledrm:
- support system memory framebuffers
panel:
- add orientation quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
- Use ktime_get_boottime() to measure power-down delay
- Fix auto-suspend delay
- Visionox VTDR6130 AMOLED DSI
- Support Himax HX8394
- Convert many drivers to common generic DSI write-sequence helper
- AUO A030JTN01
ttm:
- drop bo wait wrapper
- fix MIPS build
habanalabs:
- moved driver to accel subsystem
- gaudi2 decoder error improvement
- more trace events
- Gaudi2 abrupt reset by firmware support
- add uAPI to flush memory transactions
- add uAPI to pass through userspace reqs to fw
- remove dma-buf export by handle
amdgpu:
- add new INFO queries for peak and min sclk/mclk for profile modes
- Add PCIe info to the INFO IOCTL
- secure display support for multiple displays
- DML optimizations
- DCN 3.2 updates
- PSR updates
- DP 2.1 updates
- SR-IOV RAS updates
- VCN RAS support
- SMU 13.x updates
- Switch 1 element arrays to flexible arrays
- Add RAS support for DF 4.3
- Stack size improvements
- S0ix rework
- Allow 0 as a vram limit on APUs
- Handle profiling modes for SMU13.x
- Fix possible segfault in failure case
- Rework FW requests to happen in early_init for all IPs so
that we don't lose the sbios console if FW is missing
- Fix power reporting on certain firmwares for CZN/RN
- Allow S0ix without BIOS support
- Enable freesync over PCon
- Re-enable the AGP aperture on GMC 11.x
amdkfd:
- Error handling fixes
- PASID fixes
- Fix for cleared VRAM BOs
- Fix cleanup if GPUVM creation fails
- Memory accounting fix
- Use resource_size rather than open codeing it
- GC11 mGPU fix
radeon:
- Switch 1 element arrays to flexible arrays
- Fix memory leak on shutdown
- move to new logging
i915:
- Meteorlake display/OA/GSC fw/workarounds enabling
- DP MST DSC support
- Gamma/degamma readout support for the state checker
- Enable SDP split support for DP 2.0
- Add probe blocking support to i915.force_probe parameter
- Enable Xe HP 4tile support
- Avoid display direct calls to uncore
- Fix HuC delayed load memory leaks
- Add DG2 workarounds Wa_18018764978 and Wa_18019271663
- Improve suspend / resume times with VT-d scanout workaround active
- Fix DG2 visual corruption on small BAR systems by not forgetting to copy CCS aux state
- Fix TLB invalidation for Gen12.50 video and compute engines
- Enable HF-EEODB by switching HDMI, DP and LVDS to use struct drm_edid
- Start using unversioned DMC firmware paths for new platforms
- ELD refactor: Stop using hardware buffer, precompute ELD
- lots of display code refactoring
nouveau:
- drop legacy ioctl support
- replace 0-sized array
msm:
- dpu/dsi/mdss: Support for SM8350, SM8450 SM8550 and SC8280XP platform
- Added bindings for SM8150
- dpu: Partial support for DSC on SM8150 and SM8250
- dpu: Fixed color transformation matrix being lost on suspend/resume
- dp: Support SDM845 and SC8280XP platforms
- dp: Support for limiting DP link rate via DT property
- dsi: Validate display modes according to the DSI OPP table
- dsi: DSI PHY support for the SM6375 platform
- Add MSM_SUBMIT_BO_NO_IMPLICI
- a2xx: Support to load legacy firmware
- a6xx: GPU devcore dump updates for a650/a660
- GPU devfreq tuning and fixes
- Turn 8960 HDMI PHY into clock provider,
- Make 8960 HDMI PHY use PXO clock from DT
etnaviv:
- experimental versilicon NPU support
- report GPU load via fdinfo format
- MMU fault message improvements
tegra:
- rework syncpoint interrupt
mediatek:
- DSI timing fix
- fix config deps
ast:
- various fixes
exynos:
- restore bridge chain order fixes
gud:
- convert to shadow plane buffers
- perform flushing synchronously during atomic update
- Use new debugfs helpers
arm/hdlcd:
- Use new debugfs helper
ili9486:
- Support 16-bit pixel data
imx:
- Split off IPUv3 driver
mipi-dbi:
- convert to DRM shadow-plane helpers
- rsp driver changes
- Support separate I/O-voltage supply
mxsfb:
- Depend on ARCH_MXS or ARCH_MXC
sun4i:
- convert to new TV mode property
vc4:
- convert to new TV mode property
- kunit tests
- Support RGB565 and RGB666 formats
- convert dsi driver to bridge
- Various HVS an CRTC fixes
v3d:
- Do not opencode drm_gem_object_lookup()
virtio:
- improve tracing
vkms:
- support small cursors in IGT tests
- Fix SEGFAULT from incorrect GEM-buffer mapping
rcar-du:
- fixes and improvements
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Merge tag 'drm-next-2023-02-23' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"There are a bunch of changes all over in the usual places.
Highlights:
- habanalabs moves from misc to accel
- first accel driver for Intel VPU (Versatile Processing Unit)
inference engine
- dropped all the ancient legacy DRI1 drivers. I think it's been at
least 10 years since anyone has heard about these.
- Intel DG2 updates and prelim Meteorlake enablement
- etnaviv adds support for Versilicon NPU device (a GPU like engine
with inference accelerators)
Detailed summary:
Removals:
- remove legacy dri1 drivers: i810, mga, r128, savage, sis, tdfx, via
New driver:
- intel VPU accelerator driver
- habanalabs comes via drm tree now
drm/core:
- use drm_dbg_ helpers in several places
- Document defaults for CRTC backgrounds
- Document use of drm_minor
edid:
- improve mode parsing and refactoring
connector:
- support analog TV mode property
media:
- add some common formats
udmabuf:
- add vmap/vunmap methods
fourcc:
- add XRGB1555 and RGB565 formats
- document open source user waiver
firmware:
- fix color-format selection for system framebuffer
format-helper:
- Add conversion from XRGB8888 to various sysfb formats
- Make XRGB8888 the only driver-emulated legacy format
- Add conversion from XRGB8888 to XBGR8888 and ABGR8888
fb-helper:
- fix preferred depth and bpp values across drivers
- Avoid blank consoles from selecting an incorrect color format
probe-helper:
- Enable/disable HPD on connectors
scheduler:
- Fix lockup in drm_sched_entity_kill()
- Deprecate drm_sched_resubmit_jobs()
bridge:
- remove unused functions
- implement i2c probe_new in various drivers
- ite-it6505: Locking fixes, Cache EDID data
- ite-it66121: Support IT6610 chip
- lontium-tl9611: Fix HDMI on DragonBoard 845c
- parade-ps8640: Use atomic bridge functions
- Support i.MX93 LDB plus DT bindings
debugfs:
- add per device helpers and convert drivers
displayport:
- mst fixes
- add DP adaptive sync DPCD definitions
fbdev:
- always pick 32bpp as default
- remove some unused code
simpledrm:
- support system memory framebuffers
panel:
- add orientation quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
- Use ktime_get_boottime() to measure power-down delay
- Fix auto-suspend delay
- Visionox VTDR6130 AMOLED DSI
- Support Himax HX8394
- Convert many drivers to common generic DSI write-sequence helper
- AUO A030JTN01
ttm:
- drop bo wait wrapper
- fix MIPS build
habanalabs:
- moved driver to accel subsystem
- gaudi2 decoder error improvement
- more trace events
- Gaudi2 abrupt reset by firmware support
- add uAPI to flush memory transactions
- add uAPI to pass through userspace reqs to fw
- remove dma-buf export by handle
amdgpu:
- add new INFO queries for peak and min sclk/mclk for profile modes
- Add PCIe info to the INFO IOCTL
- secure display support for multiple displays
- DML optimizations
- DCN 3.2 updates
- PSR updates
- DP 2.1 updates
- SR-IOV RAS updates
- VCN RAS support
- SMU 13.x updates
- Switch 1 element arrays to flexible arrays
- Add RAS support for DF 4.3
- Stack size improvements
- S0ix rework
- Allow 0 as a vram limit on APUs
- Handle profiling modes for SMU13.x
- Fix possible segfault in failure case
- Rework FW requests to happen in early_init for all IPs so that we
don't lose the sbios console if FW is missing
- Fix power reporting on certain firmwares for CZN/RN
- Allow S0ix without BIOS support
- Enable freesync over PCon
- Re-enable the AGP aperture on GMC 11.x
amdkfd:
- Error handling fixes
- PASID fixes
- Fix for cleared VRAM BOs
- Fix cleanup if GPUVM creation fails
- Memory accounting fix
- Use resource_size rather than open codeing it
- GC11 mGPU fix
radeon:
- Switch 1 element arrays to flexible arrays
- Fix memory leak on shutdown
- move to new logging
i915:
- Meteorlake display/OA/GSC fw/workarounds enabling
- DP MST DSC support
- Gamma/degamma readout support for the state checker
- Enable SDP split support for DP 2.0
- Add probe blocking support to i915.force_probe parameter
- Enable Xe HP 4tile support
- Avoid display direct calls to uncore
- Fix HuC delayed load memory leaks
- Add DG2 workarounds Wa_18018764978 and Wa_18019271663
- Improve suspend / resume times with VT-d scanout workaround active
- Fix DG2 visual corruption on small BAR systems by not forgetting to
copy CCS aux state
- Fix TLB invalidation for Gen12.50 video and compute engines
- Enable HF-EEODB by switching HDMI, DP and LVDS to use struct
drm_edid
- Start using unversioned DMC firmware paths for new platforms
- ELD refactor: Stop using hardware buffer, precompute ELD
- lots of display code refactoring
nouveau:
- drop legacy ioctl support
- replace 0-sized array
msm:
- dpu/dsi/mdss: Support for SM8350, SM8450 SM8550 and SC8280XP platform
- Added bindings for SM8150
- dpu: Partial support for DSC on SM8150 and SM8250
- dpu: Fixed color transformation matrix being lost on suspend/resume
- dp: Support SDM845 and SC8280XP platforms
- dp: Support for limiting DP link rate via DT property
- dsi: Validate display modes according to the DSI OPP table
- dsi: DSI PHY support for the SM6375 platform
- Add MSM_SUBMIT_BO_NO_IMPLICI
- a2xx: Support to load legacy firmware
- a6xx: GPU devcore dump updates for a650/a660
- GPU devfreq tuning and fixes
- Turn 8960 HDMI PHY into clock provider,
- Make 8960 HDMI PHY use PXO clock from DT
etnaviv:
- experimental versilicon NPU support
- report GPU load via fdinfo format
- MMU fault message improvements
tegra:
- rework syncpoint interrupt
mediatek:
- DSI timing fix
- fix config deps
ast:
- various fixes
exynos:
- restore bridge chain order fixes
gud:
- convert to shadow plane buffers
- perform flushing synchronously during atomic update
- Use new debugfs helpers
arm/hdlcd:
- Use new debugfs helper
ili9486:
- Support 16-bit pixel data
imx:
- Split off IPUv3 driver
mipi-dbi:
- convert to DRM shadow-plane helpers
- rsp driver changes
- Support separate I/O-voltage supply
mxsfb:
- Depend on ARCH_MXS or ARCH_MXC
sun4i:
- convert to new TV mode property
vc4:
- convert to new TV mode property
- kunit tests
- Support RGB565 and RGB666 formats
- convert dsi driver to bridge
- Various HVS an CRTC fixes
v3d:
- Do not opencode drm_gem_object_lookup()
virtio:
- improve tracing
vkms:
- support small cursors in IGT tests
- Fix SEGFAULT from incorrect GEM-buffer mapping
rcar-du:
- fixes and improvements"
* tag 'drm-next-2023-02-23' of git://anongit.freedesktop.org/drm/drm: (1455 commits)
msm/fbdev: fix unused variable warning with clang.
drm/fb-helper: Remove drm_fb_helper_unprepare() from drm_fb_helper_fini()
dma-buf: make kobj_type structure constant
drm/shmem-helper: Fix locking for drm_gem_shmem_get_pages_sgt()
drm/amd/display: disable SubVP + DRR to prevent underflow
drm/amd/display: Fail atomic_check early on normalize_zpos error
drm/amd/pm: avoid unaligned access warnings
drm/amd/display: avoid unaligned access warnings
drm/amd/display: Remove duplicate/repeating expressions
drm/amd/display: Remove duplicate/repeating expression
drm/amd/display: Make variables declaration inside ifdef guard
drm/amd/display: Fix excess arguments on kernel-doc
drm/amd/display: Add previously missing includes
drm/amd/amdgpu: Add function prototypes to headers
drm/amd/display: Add function prototypes to headers
drm/amd/display: Turn global functions into static
drm/amd/display: remove unused _calculate_degamma_curve function
drm/amd/display: remove unused func declaration from resource headers
drm/amd/display: unset initial value for tf since it's never used
drm/amd/display: camel case cleanup in color_gamma file
...
- Replace 0-length and 1-element arrays with flexible arrays in various
subsystems (Paulo Miguel Almeida, Stephen Rothwell, Kees Cook)
- randstruct: Disable Clang 15 support (Eric Biggers)
- GCC plugins: Drop -std=gnu++11 flag (Sam James)
- strpbrk(): Refactor to use strchr() (Andy Shevchenko)
- LoadPin LSM: Allow root filesystem switching when non-enforcing
- fortify: Use dynamic object size hints when available
- ext4: Fix CFI function prototype mismatch
- Nouveau: Fix DP buffer size arguments
- hisilicon: Wipe entire crypto DMA pool on error
- coda: Fully allocate sig_inputArgs
- UBSAN: Improve arm64 trap code reporting
- copy_struct_from_user(): Add minimum bounds check on kernel buffer size
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Merge tag 'hardening-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"Beyond some specific LoadPin, UBSAN, and fortify features, there are
other fixes scattered around in various subsystems where maintainers
were okay with me carrying them in my tree or were non-responsive but
the patches were reviewed by others:
- Replace 0-length and 1-element arrays with flexible arrays in
various subsystems (Paulo Miguel Almeida, Stephen Rothwell, Kees
Cook)
- randstruct: Disable Clang 15 support (Eric Biggers)
- GCC plugins: Drop -std=gnu++11 flag (Sam James)
- strpbrk(): Refactor to use strchr() (Andy Shevchenko)
- LoadPin LSM: Allow root filesystem switching when non-enforcing
- fortify: Use dynamic object size hints when available
- ext4: Fix CFI function prototype mismatch
- Nouveau: Fix DP buffer size arguments
- hisilicon: Wipe entire crypto DMA pool on error
- coda: Fully allocate sig_inputArgs
- UBSAN: Improve arm64 trap code reporting
- copy_struct_from_user(): Add minimum bounds check on kernel buffer
size"
* tag 'hardening-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
randstruct: disable Clang 15 support
uaccess: Add minimum bounds check on kernel buffer size
arm64: Support Clang UBSAN trap codes for better reporting
coda: Avoid partial allocation of sig_inputArgs
gcc-plugins: drop -std=gnu++11 to fix GCC 13 build
lib/string: Use strchr() in strpbrk()
crypto: hisilicon: Wipe entire pool on error
net/i40e: Replace 0-length array with flexible array
io_uring: Replace 0-length array with flexible array
ext4: Fix function prototype mismatch for ext4_feat_ktype
i915/gvt: Replace one-element array with flexible-array member
drm/nouveau/disp: Fix nvif_outp_acquire_dp() argument size
LoadPin: Allow filesystem switch when not enforcing
LoadPin: Move pin reporting cleanly out of locking
LoadPin: Refactor sysctl initialization
LoadPin: Refactor read-only check into a helper
ARM: ixp4xx: Replace 0-length arrays with flexible arrays
fortify: Use __builtin_dynamic_object_size() when available
rxrpc: replace zero-lenth array with DECLARE_FLEX_ARRAY() helper
Replace direct modifications to vma->vm_flags with calls to modifier
functions to be able to track flag changes and to keep vma locking
correctness.
[akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo]
Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@google.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Peter Oskolkov <posk@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Punit Agrawal <punit.agrawal@bytedance.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Move include/linux/qcom_scm.h to include/linux/firmware/qcom/qcom_scm.h.
This removes 1 of a few remaining Qualcomm-specific headers into a more
approciate subdirectory under include/.
Suggested-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Reviewed-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
Acked-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230203210956.3580811-1-quic_eberman@quicinc.com
Some non-fatal log messages should be logged at INFO log level
because failure to send/receive them is not breaking mei functionality
and may happen during legal firmware resets
Signed-off-by: Vitaly Lubart <vitaly.lubart@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20230207115520.846232-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With immediate reply support to enum request and
FW reset, a device on MEI bus can be temporarily removed.
A driver for a device on MEI bus can try to bind to the device
right between bus attempt to remove driver and device
structures removal.
This leaves device driver with pointers to freed memory
of device structures.
Avoid bus device driver bind while dismantling device by
disallowing device match right before driver release.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20230207115520.846232-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic at
once.
Cc: Nadav Amit <namit@vmware.com>
Cc: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230202141100.2291188-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Link: https://lore.kernel.org/r/20230129092357.3143-1-liubo03@inspur.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge v6.2-rc6 into drm-next
Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.
Conflicts:
- Tiny conflict in drm_fbdev_generic.c between variable rename and
missing error handling that got added.
- Conflict in drm_fb_helper.c between the added call to vgaswitcheroo
in drm_fb_helper_single_fb_probe and a refactor patch that extracted
lots of helpers and incidentally removed the dev local variable.
Readd it to make things compile.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Client on bus have only one vtag map slot and should disregard the vtag
value when cleaning pending read flag.
Fixes read flow control message unexpectedly generated when
clent on bus send messages with different vtags.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125082637.118970-4-alan.previn.teres.alexis@intel.com
Asynchronous runtime resume is not possible while the system
is suspending.
The power management subsystem resumes the device only in the
suspend phase, not in the prepare phase.
Force resume device in prepare to allow drivers on mei bus
to communicate in their prepare callbacks.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125082637.118970-2-alan.previn.teres.alexis@intel.com
The uevent() callback in struct bus_type should not be modifying the
device that is passed into it, so mark it as a const * and propagate the
function signature changes out into all relevant subsystems that use
this callback.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-16-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that we have a subsystem for compute accelerators, move the
habanalabs driver to it.
This patch only moves the files and fixes the Makefiles. Future
patches will change the existing code to register to the accel
subsystem and expose the accel device char files instead of the
habanalabs device char files.
Update the MAINTAINERS file to reflect this change.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Move the habanalabs.h uapi file from include/uapi/misc to
include/uapi/drm, and rename it to habanalabs_accel.h.
This is required before moving the actual driver to the accel
subsystem.
Update MAINTAINERS file accordingly.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The dma-buf private object is freed if a call to dma_buf_fd() fails,
and because a file was already associated with the dma-buf in
dma_buf_export(), the release op will be called and will use this
object.
Mark the 'priv' field as NULL in this case, and avoid accessing it from
the release op.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order to have the no-cause error print be more informative,
we add the event description in addition to the event id.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add a uAPI, as part of the INFO IOCTL, to allow users to send
requests directly to f/w, according to a pre-defined set of opcodes
that the f/w exposes.
The f/w will put the result in a kernel-allocated buffer, which the
driver will then copy to the user-supplied buffer.
This will allow f/w tools to communicate directly with the f/w
without the need to add a new uAPI to the driver for each new type
of request.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
An Ascii message that is sent from preboot towards the driver
will indicate the specific error that occurred on the f/w.
This commit supports that message and parse the ascii string
in order to print it into the kernel log
The commit also changes the way the descriptor struct is declared.
While its size increased (it now above 1024 bytes), it will be
allocated by using kmalloc instead of stack declaration.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Instead of waiting for BTM indication we should wait for preboot ready.
Consider the below scenario:
1. FW update is being triggered
- setting the dirty bit
2. hard reset will be triggered due to the dirty bit
3. FW initiates the reset:
- dirty bit cleared
- BTM indication cleared
- preboot ready indication cleared
4. during hard reset:
- BTM indication will be set
- BIST test performed and another reset triggered
5. only after this reset the preboot will set the preboot ready
When polling on BTM indication alone we can lose sync with FW while
trying to communicate with FW that is during reset.
To overcome this we will always wait to preboot ready indication.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Need to put fences even if an unexpected status value is received while
waiting for a fence.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The -ERESTARTSYS return value is not handled correctly when a signal is
received while waiting for CS completion.
This can lead to bad output values to user when waiting for a single CS
completion, and more severe, it can cause a non-stopping loop when
waiting to multi-CS completion and until a CS timeout.
Fix the handling and exit the waiting if this return value is received.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This patch fixes a bug that was found in the dmabuf flow.
Bug description as found on Gaudi2 device:
1. User allocates 4MB of device memory
- Note that although the allocation size was 4MB the HMMU allocated
a full page of 768MB to back the request.
- The user gets a memory handle that points to a single page (768MB)
- Mapping the handle, the user gets virtual address to the start of
the page.
2. User exports the buffer
3. User registers the exported buffer in the importer. This flow has
a callback to the exporter which in turn converts the phys_page_pack
to an SG list for the importer. This SG list is of single entry of
size 768MB. However, the size that was passed to the importer was
only 4MB.
The solution for this is to make sure the importer gets exposure only
to the exported size.
This will be done by fixing the SG created by the exporter to be of
the total size of the actual exported memory requested by the user.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
A previous commit deprecated the option to export from handle, leaving
the code with no support for devices with virtual memory.
This commit modifies the export API in a way that unifies the uAPI to
user address for both cases (i.e. with and without MMU support) and add
the actual support for devices with virtual memory.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Validate export parameters in a dedicated function instead of in the
main export flow.
This will be useful later when support to export dmabuf for devices
with virtual memory will be added.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The API to the user which allows exporting DMA buffer from handle is
deprecated here. It was never used as it is relevant only for Gaudi2,
and the user stack has yet to add support for dmabuf in Gaudi2.
Looking forward, a modified API to export DMA buffer for ASICs that
supports virtual memory will be added.
Until the new API will be ready- exporting DMA buffer will not be
supported for ASICs with virtual memory.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This warning doesn't have real consequences, and therefore can be
printed in debug level.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Call COMMS tracepoints from within the dynamic CPU FW load.
This can help debug failures or delays in the dynamic FW load flow.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In certain scenarios, firmware might encounter a fatal event for
which a device reset is required. Hence, a proper notification
is needed for driver to be aware and initiate a reset sequence.
In secured environments the reset will be performed by firmware
without an explicit request from the driver.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
When user context is released and hpriv_release() is called, there is a
device idle status check, to understand if user has left the device not
idle and then a reset is required.
However, if the user process is killed because of device hard reset,
the device at this point would always be not idle, because the device
engines were already forcefully halted.
Modify hpriv_release() to skip the idle check if reset is in progress.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
timestamp events that expire on the same interrupt will get the same
timestamp value
Signed-off-by: Tamir Gilad-Raz <tgiladraz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order to reduce error log, we try to minimize the dumped rows
while keeping all relevant error info. In addition we completely
remove clock throttling debug logs.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
During event handling we extract interrupt cause and count it.
In case we could not find any cause we should add proper error.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
If the f/w reports the binning masks at the preboot stage, the driver
must align its DRAM properties according to the new information.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Removing double assignment of the hop2_pte_addr
variable in dram_default_mapping_fini().
Dead store reported by clang-analyzer.
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
As ASICs are evolving, we will need to update the DRAM properties at
various points because we may get different information from the f/w
at different points of the initialization.
This ASIC function is a foundation for this capability.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
As hl_mmap_mem_buf_get() is called also from IOCTLs which can have a
bad handle from user, modify the print for "no match to handle" to use
dev_dbg().
Calls to this function which are not dependent on user, already have an
error print when the function fails.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The refcount of a CB buffer is initialized when user allocates a CB,
and is decreased when he destroys the CB handle.
If this refcount is increased also from kernel and user sends more than
one destroy requests for the handle, the buffer will be released/freed
and later be accessed when the refcount is put from kernel side.
To avoid it, prevent user from destroying the handle more than once.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
As clock throttling due to high power consumption can happen very
frequently and there is no real reason to notify the user about it,
we skip this notification in all asics.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
User should close the FD when being notified about an error, after
which a device reset takes place.
However, if the user has pending threads that wait for completions,
the device release won't be called and eventually the watchdog timeout
will expire, leading to hard reset and killing the user process.
To avoid it, abort such waiting threads right after the error
notification, and block following waiting operations.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The device file is not in use when hl_device_release() is called,
and there aren't any user threads that use IOCTLs to wait for
interrupts. Therefore there is no need to release them at this point.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Sometimes we need the binning info at a very early state of the
driver initialization. Therefore, support was added in preboot to
provide the binning info as part of the f/w descriptor and the driver
can now use that.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Fix programming incorrect value of address range
Signed-off-by: tal albo <talbo@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The srcvm parameter of qcom_scm_assign_mem is a pointer to a bitfield of
VMIDs. The bitfield is updated with which VMIDs have permissions
after the qcom_scm_assign_mem call. This makes it simpler for clients to
make qcom_scm_assign_mem calls later, they always pass in same srcvm
bitfield and do not need to closely track whether memory was originally
shared.
When restoring permissions to HLOS, fastrpc is incorrectly using the
first VMID directly -- neither the BIT nor the other possible VMIDs the
memory was already assigned to. We already have a field intended for
this purpose: "perms" in the struct fastrpc_channel_ctx, but it was
never used. Start using the perms field.
Cc: Abel Vesa <abel.vesa@linaro.org>
Cc: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: e90d911906 ("misc: fastrpc: Add support to secure memory map")
Fixes: 0871561055 ("misc: fastrpc: Add support for audiopd")
Fixes: 532ad70c6d ("misc: fastrpc: Add mmap request assigning for static PD pool")
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
drivers/misc/fastrpc.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
Link: https://lore.kernel.org/r/20230112182313.521467-1-quic_eberman@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is possible that in between calling fastrpc_map_get() until
map->fl->lock is taken in fastrpc_free_map(), another thread can call
fastrpc_map_lookup() and get a reference to a map that is about to be
deleted.
Rewrite fastrpc_map_get() to only increase the reference count of a map
if it's non-zero. Propagate this to callers so they can know if a map is
about to be deleted.
Fixes this warning:
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate
...
Call trace:
refcount_warn_saturate
[fastrpc_map_get inlined]
[fastrpc_map_lookup inlined]
fastrpc_map_create
fastrpc_internal_invoke
fastrpc_device_ioctl
__arm64_sys_ioctl
invoke_syscall
Fixes: c68cfb718c ("misc: fastrpc: Add support for context Invoke method")
Cc: stable <stable@kernel.org>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Do not remove the map from the list on error path in
fastrpc_init_create_process, instead call fastrpc_map_put, to avoid
use-after-free. Do not remove it on fastrpc_device_release either,
call fastrpc_map_put instead.
The fastrpc_free_map is the only proper place to remove the map.
This is called only after the reference count is 0.
Fixes: b49f6d83e2 ("misc: fastrpc: Fix a possible double free")
Cc: stable <stable@kernel.org>
Co-developed-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently, there is a race window between the point when the mutex is
unlocked in fastrpc_map_lookup and the reference count increasing
(fastrpc_map_get) in fastrpc_map_find, which can also lead to
use-after-free.
So lets merge fastrpc_map_find into fastrpc_map_lookup which allows us
to both protect the maps list by also taking the &fl->lock spinlock and
the reference count, since the spinlock will be released only after.
Add take_ref argument to make this suitable for all callers.
Fixes: 8f6c1d8c4f ("misc: fastrpc: Add fdlist implementation")
Cc: stable <stable@kernel.org>
Co-developed-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Ola Jeppsson <ola@snap.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221124174941.418450-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The "err" variable shadows an earlier global variable so this code
returns success instead of a negative error code.
Fixes: 532ad70c6d ("misc: fastrpc: Add mmap request assigning for static PD pool")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/Y4XUrMETCl1O6t0A@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add Meteor Lake Point M device id.
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221212220247.286019-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unconditional call to mei_cl_unlink in mei_cl_bus_dev_release leads
to call of the mei_cl_unlink without corresponding mei_cl_link.
This leads to miscalculation of open_handle_count (decrease without
increase).
Call unlink in mei_cldev_enable fail path and remove blanket unlink
from mei_cl_bus_dev_release.
Fixes: 34f1166afd ("mei: bus: need to unlink client before freeing")
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221212220247.286019-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Triple Modular Redundancy(TMR) provides functional fault injection by
changing selected MicroBlaze instructions, which provides the possibility
to verify that the TMR subsystem error detection and fault recovery logic
is working properly.
Usage:
echo 1 > /sys/kernel/debug/xtmr_inject/inject_fault/inject_fault
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.kedareswara.rao@amd.com>
Link: https://lore.kernel.org/r/20221125054113.122833-5-appana.durga.kedareswara.rao@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Triple Modular Redundancy(TMR) subsystem contains three microblaze cores,
subsystem is fault-tolerant and continues to operate nominally after
encountering an error. Together with the capability to detect and recover
from errors, the implementation ensures the reliability of the entire
subsystem. TMR Manager is responsible for performing recovery of the
subsystem detects the fault via a break signal it invokes microblaze
software break handler which calls the tmr manager driver api to
update the error count and status, added support for fault detection
feature via sysfs interface.
Usage:
To know the break handler count(Error count):
cat /sys/devices/platform/amba_pl/44a10000.tmr_manager/errcnt
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.kedareswara.rao@amd.com>
Link: https://lore.kernel.org/r/20221125054113.122833-3-appana.durga.kedareswara.rao@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
GUID_INIT() is for internal guid_t type and shouldn't be used
for the uuid_le. I.o.w. relying on the implementation details
is layering violation. Use correct macros to initialize uuid_le.
Fixes: 64e9bbdd95 ("misc/mei/hdcp: Client driver for HDCP application")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221228160500.21220-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
GUID_INIT() is for internal guid_t type and shouldn't be used
for the uuid_le. I.o.w. relying on the implementation details
is layering violation. Use correct macros to initialize uuid_le.
Fixes: c2004ce99e ("mei: pxp: export pavp client to me client bus")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20221228160558.21311-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We should use put_device() to release the reference.
Fixes: ee959b00c3 ("SCSI: convert struct class_device to struct device")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20221215090804.473022-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds