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2025-05-10KVM: arm64: Remove hand-crafted masks for FGT registersMarc Zyngier
These masks are now useless, and can be removed. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-10KVM: arm64: Use computed FGT masks to setup FGT registersMarc Zyngier
Flip the hyervisor FGT configuration over to the computed FGT masks. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Propagate FGT masks to the nVHE hypervisorMarc Zyngier
The nVHE hypervisor needs to have access to its own view of the FGT masks, which unfortunately results in a bit of data duplication. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Unconditionally configure fine-grain trapsMark Rutland
... otherwise we can inherit the host configuration if this differs from the KVM configuration. Signed-off-by: Mark Rutland <mark.rutland@arm.com> [maz: simplified a couple of things] Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Use computed masks as sanitisers for FGT registersMarc Zyngier
Now that we have computed RES0 bits, use them to sanitise the guest view of FGT registers. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Add description of FGT bits leading to EC!=0x18Marc Zyngier
The current FTP tables are only concerned with the bits generating ESR_ELx.EC==0x18. However, we want an exhaustive view of what KVM really knows about. So let's add another small table that provides that extra information. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Compute FGT masks from KVM's own FGT tablesMarc Zyngier
In the process of decoupling KVM's view of the FGT bits from the wider architectural state, use KVM's own FGT tables to build a synthetic view of what is actually known. This allows for some checking along the way. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Plug FEAT_GCS handlingMarc Zyngier
We don't seem to be handling the GCS-specific exception class. Handle it by delivering an UNDEF to the guest, and populate the relevant trap bits. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Don't treat HCRX_EL2 as a FGT registerMarc Zyngier
Treating HCRX_EL2 as yet another FGT register seems excessive, and gets in a way of further improvements. It is actually simpler to just be explicit about the masking, so just to that. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Restrict ACCDATA_EL1 undef to FEAT_LS64_ACCDATA being disabledMarc Zyngier
We currently unconditionally make ACCDATA_EL1 accesses UNDEF. As we are about to support it, restrict the UNDEF behaviour to cases where FEAT_LS64_ACCDATA is not exposed to the guest. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Handle trapping of FEAT_LS64* instructionsMarc Zyngier
We generally don't expect FEAT_LS64* instructions to trap, unless they are trapped by a guest hypervisor. Otherwise, this is just the guest playing tricks on us by using an instruction that isn't advertised, which we handle with a well deserved UNDEF. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Simplify handling of negative FGT bitsMarc Zyngier
check_fgt_bit() and triage_sysreg_trap() implement the same thing twice for no good reason. We have to lookup the FGT register twice, as we don't communicate it. Similarly, we extract the register value at the wrong spot. Reorganise the code in a more logical way so that things are done at the correct location, removing a lot of duplication. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06KVM: arm64: Tighten handling of unknown FGT groupsMarc Zyngier
triage_sysreg_trap() assumes that it knows all the possible values for FGT groups, which won't be the case as we start adding more FGT registers (unless we add everything in one go, which is obviously undesirable). At the same time, it doesn't offer much in terms of debugging info when things go wrong. Turn the "__NR_FGT_GROUP_IDS__" case into a default, covering any unhandled value, and give the kernel hacker a bit of a clue about what's wrong (system register and full trap descriptor). Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: Add FEAT_FGT2 capabilityMarc Zyngier
As we will eventually have to context-switch the FEAT_FGT2 registers in KVM (something that has been completely ignored so far), add a new cap that we will be able to check for. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: Add syndrome information for trapped LD64B/ST64B{,V,V0}Marc Zyngier
Provide the architected EC and ISS values for all the FEAT_LS64* instructions. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: tools: Resync sysreg.hMarc Zyngier
Perform a bulk resync of tools/arch/arm64/include/asm/sysreg.h. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: Remove duplicated sysreg encodingsMarc Zyngier
A bunch of sysregs are now generated from the sysreg file, so no need to carry separate definitions. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Add system instructions trapped by HFGIRT2_EL2Marc Zyngier
Add the new CMOs trapped by HFGITR2_EL2. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Add registers trapped by HDFG{R,W}TR2_EL2Marc Zyngier
Bulk addition of all the system registers trapped by HDFG{R,W}TR2_EL2. The descriptions are extracted from the BSD-licenced JSON file part of the 2025-03 drop from ARM. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Add registers trapped by HFG{R,W}TR2_EL2Marc Zyngier
Bulk addition of all the system registers trapped by HFG{R,W}TR2_EL2. The descriptions are extracted from the BSD-licenced JSON file part of the 2025-03 drop from ARM. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Update CPACR_EL1 descriptionMarc Zyngier
Add the couple of fields introduced with FEAT_NV2p1. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Update TRBIDR_EL1 descriptionMarc Zyngier
Add the missing MPAM field. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Update PMSIDR_EL1 descriptionMarc Zyngier
Add the missing SME, ALTCLK, FPF, EFT. CRR and FDS fields. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Update ID_AA64PFR0_EL1 descriptionMarc Zyngier
Add the missing RASv2 description. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Replace HFGxTR_EL2 with HFG{R,W}TR_EL2Marc Zyngier
Treating HFGRTR_EL2 and HFGWTR_EL2 identically was a mistake. It makes things hard to reason about, has the potential to introduce bugs by giving a meaning to bits that are really reserved, and is in general a bad description of the architecture. Given that #defines are cheap, let's describe both registers as intended by the architecture, and repaint all the existing uses. Yes, this is painful. The registers themselves are generated from the JSON file in an automated way. Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Add layout for HCR_EL2Marc Zyngier
Add HCR_EL2 to the sysreg file, more or less directly generated from the JSON file. Since the generated names significantly differ from the existing naming, express the old names in terms of the new one. One day, we'll fix this mess, but I'm not in any hurry. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Update ID_AA64MMFR4_EL1 descriptionMarc Zyngier
Resync the ID_AA64MMFR4_EL1 with the architectue description. This results in: - the new PoPS field - the new NV2P1 value for the NV_frac field - the new RMEGDI field - the new SRMASK field These fields have been generated from the reference JSON file. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-05-06arm64: sysreg: Add ID_AA64ISAR1_EL1.LS64 encoding for FEAT_LS64WBMarc Zyngier
The 2024 extensions are adding yet another variant of LS64 (aptly named FEAT_LS64WB) supporting LS64 accesses to write-back memory, as well as 32 byte single-copy atomic accesses using pairs of FP registers. Add the relevant encoding to ID_AA64ISAR1_EL1.LS64. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2025-04-20Linux 6.15-rc3v6.15-rc3Linus Torvalds
2025-04-20gcc-15: work around sequence-point warningLinus Torvalds
The C sequence points are complicated things, and gcc-15 has apparently added a warning for the case where an object is both used and modified multiple times within the same sequence point. That's a great warning. Or rather, it would be a great warning, except gcc-15 seems to not really be very exact about it, and doesn't notice that the modification are to two entirely different members of the same object: the array counter and the array entries. So that seems kind of silly. That said, the code that gcc complains about is unnecessarily complicated, so moving the array counter update into a separate statement seems like the most straightforward fix for these warnings: drivers/net/wireless/intel/iwlwifi/mld/d3.c: In function ‘iwl_mld_set_netdetect_info’: drivers/net/wireless/intel/iwlwifi/mld/d3.c:1102:66: error: operation on ‘netdetect_info->n_matches’ may be undefined [-Werror=sequence-point] 1102 | netdetect_info->matches[netdetect_info->n_matches++] = match; | ~~~~~~~~~~~~~~~~~~~~~~~~~^~ drivers/net/wireless/intel/iwlwifi/mld/d3.c:1120:58: error: operation on ‘match->n_channels’ may be undefined [-Werror=sequence-point] 1120 | match->channels[match->n_channels++] = | ~~~~~~~~~~~~~~~~~^~ side note: the code at that second warning is actively buggy, and only works on little-endian machines that don't do strict alignment checks. The code casts an array of integers into an array of unsigned long in order to use our bitmap iterators. That happens to work fine on any sane architecture, but it's still wrong. This does *not* fix that more serious problem. This only splits the two assignments into two statements and fixes the compiler warning. I need to get rid of the new warnings in order to be able to actually do any build testing. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-20gcc-15: add '__nonstring' markers to byte arraysLinus Torvalds
All of these cases are perfectly valid and good traditional C, but hit by the "you're not NUL-terminating your byte array" warning. And none of the cases want any terminating NUL character. Mark them __nonstring to shut up gcc-15 (and in the case of the ak8974 magnetometer driver, I just removed the explicit array size and let gcc expand the 3-byte and 6-byte arrays by one extra byte, because it was the simpler change). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-20gcc-15: get rid of misc extra NUL character paddingLinus Torvalds
This removes two cases of explicit NUL padding that now causes warnings because of '-Wunterminated-string-initialization' being part of -Wextra in gcc-15. Gcc is being silly in this case when it says that it truncates a NUL terminator, because in these cases there were _multiple_ NUL characters. But we can get rid of the warning by just simplifying the two initializers that trigger the warning for me, so this does exactly that. I'm not sure why the power supply code did that odd .attr_name = #_name "\0", pattern: it was introduced in commit 2cabeaf15129 ("power: supply: core: Cleanup power supply sysfs attribute list"), but that 'attr_name[]' field is an explicitly sized character array in a statically initialized variable, and a string initializer always has a terminating NUL _and_ statically initialized character arrays are zero-padded anyway, so it really seems to be rather extraneous belt-and-suspenders. The zero_uuid[16] initialization in drivers/md/bcache/super.c makes perfect sense, but it isn't necessary for the same reasons, and not worth the new gcc warning noise. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-20gcc-15: acpi: sprinkle random '__nonstring' crumbles aroundLinus Torvalds
This is not great: I'd much rather introduce a typedef that is a "ACPI name byte buffer", and use that to mark these special 4-byte ACPI names that do not use NUL termination. But as noted in the previous commit ("gcc-15: make 'unterminated string initialization' just a warning") gcc doesn't actually seem to support that notion, so instead you have to just mark every single array declaration individually. So this is not pretty, but this gets rid of the bulk of the annoying warnings during an allmodconfig build for me. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-20gcc-15: make 'unterminated string initialization' just a warningLinus Torvalds
gcc-15 enabling -Wunterminated-string-initialization in -Wextra by default was done with the best intentions, but the warning is still quite broken. What annoys me about the warning is that this is a very traditional AND CORRECT way to initialize fixed byte arrays in C: unsigned char hex[16] = "0123456789abcdef"; and we use this all over the kernel. And the warning is fine, but gcc developers apparently never made a reasonable way to disable it. As is (sadly) tradition with these things. Yes, there's "__attribute__((nonstring))", and we have a macro to make that absolutely disgusting syntax more palatable (ie the kernel syntax for that monstrosity is just "__nonstring"). But that attribute is misdesigned. What you'd typically want to do is tell the compiler that you are using a type that isn't a string but a byte array, but that doesn't work at all: warning: ‘nonstring’ attribute does not apply to types [-Wattributes] and because of this fundamental mis-design, you then have to mark each instance of that pattern. This is particularly noticeable in our ACPI code, because ACPI has this notion of a 4-byte "type name" that gets used all over, and is exactly this kind of byte array. This is a sad oversight, because the warning is useful, but really would be so much better if gcc had also given a sane way to indicate that we really just want a byte array type at a type level, not the broken "each and every array definition" level. So now instead of creating a nice "ACPI name" type using something like typedef char acpi_name_t[4] __nonstring; we have to do things like char name[ACPI_NAMESEG_SIZE] __nonstring; in every place that uses this concept and then happens to have the typical initializers. This is annoying me mainly because I think the warning _is_ a good warning, which is why I'm not just turning it off in disgust. But it is hampered by this bad implementation detail. [ And obviously I'm doing this now because system upgrades for me are something that happen in the middle of the release cycle: don't do it before or during travel, or just before or during the busy merge window period. ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-19Merge tag 'mm-hotfixes-stable-2025-04-19-21-24' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues or aren't considered necessary for -stable kernels. All patches are basically for MM although five are alterations to MAINTAINERS" [ Basic counting skills are clearly not a strictly necessary requirement for kernel maintainers. - Linus ] * tag 'mm-hotfixes-stable-2025-04-19-21-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: add section for locking of mm's and VMAs mm: vmscan: fix kswapd exit condition in defrag_mode mm: vmscan: restore high-cpu watermark safety in kswapd MAINTAINERS: add Pedro as reviewer to the MEMORY MAPPING section mm/memory: move sanity checks in do_wp_page() after mapcount vs. refcount stabilization mm, hugetlb: increment the number of pages to be reset on HVO writeback: fix false warning in inode_to_wb() docs: ABI: replace mcroce@microsoft.com with new Meta address mm/gup: fix wrongly calculated returned value in fault_in_safe_writeable() MAINTAINERS: add memory advice section MAINTAINERS: add mmap trace events to MEMORY MAPPING mm: memcontrol: fix swap counter leak from offline cgroup MAINTAINERS: add MM subsection for the page allocator MAINTAINERS: update SLAB ALLOCATOR maintainers fs/dax: fix folio splitting issue by resetting old folio order + _nr_pages mm/page_alloc: fix deadlock on cpu_hotplug_lock in __accept_page()
2025-04-19Merge tag 'vfs-6.15-rc3.fixes.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - Revert the hfs{plus} deprecation warning that's also included in this pull request. The commit introducing the deprecation warning resides rather early in this branch. So simply dropping it would've rebased all other commits which I decided to avoid. Hence the revert in the same branch [ Background - the deprecation warning discussion resulted in people stepping up, and so hfs{plus} will have a maintainer taking care of it after all.. - Linus ] - Switch CONFIG_SYSFS_SYCALL default to n and decouple from CONFIG_EXPERT - Fix an audit bug caused by changes to our kernel path lookup helpers this cycle. Audit needs the parent path even if the dentry it tried to look up is negative - Ensure that the kernel path lookup helpers leave the passed in path argument clean when they return an error. This is consistent with all our other helpers - Ensure that vfs_getattr_nosec() calls bdev_statx() so the relevant information is available to kernel consumers as well - Don't set a timer and call schedule() if the timer will expire immediately in epoll - Make netfs lookup tables with __nonstring * tag 'vfs-6.15-rc3.fixes.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: Revert "hfs{plus}: add deprecation warning" fs: move the bdex_statx call to vfs_getattr_nosec netfs: Mark __nonstring lookup tables eventpoll: Set epoll timeout if it's in the future fs: ensure that *path_locked*() helpers leave passed path pristine fs: add kern_path_locked_negative() hfs{plus}: add deprecation warning Kconfig: switch CONFIG_SYSFS_SYCALL default to n
2025-04-19Merge tag 'i2c-for-6.15-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - Address translator: fix wrong include - ChromeOS EC tunnel: fix potential NULL pointer dereference * tag 'i2c-for-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: atr: Fix wrong include i2c: cros-ec-tunnel: defer probe if parent EC is not present
2025-04-19Revert "hfs{plus}: add deprecation warning"Christian Brauner
This reverts commit ddee68c499f76ae47c011549df5be53db0057402. There's ongoing discussion about better maintenance of at least hfsplus. Rever the deprecation warning for now. Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-04-19Merge tag 'trace-v6.15-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Initialize hash variables in ftrace subops logic The fix that simplified the ftrace subops logic opened a path where some variables could be used without being initialized, and done subtly where the compiler did not catch it. Initialize those variables to the EMPTY_HASH, which is the default hash. - Reinitialize the hash pointers after they are freed Some of the hash pointers in the subop logic were freed but may still be referenced later. To prevent use-after-free bugs, initialize them back to the EMPTY_HASH. - Free the ftrace hashes when they are replaced The fix that simplified the subops logic updated some hash pointers, but left the original hash that they were pointing to where they are no longer used. This caused a memory leak. Free the hashes that are pointed to by the pointers when they are replaced. - Fix size initialization of ftrace direct function hash The ftrace direct function hash used by BPF initialized the hash size incorrectly. It checked the size of items to a hard coded 32, which made the hash bit size of 5. The hash size is supposed to be limited by the bit size of the hash, as the bitmask is allowed to be greater than 5. Rework the size check to first pass the number of elements to fls() and then compare that to FTRACE_HASH_MAX_BITS before allocating the hash. - Fix format output of ftrace_graph_ent_entry event The field depth of the ftrace_graph_ent_entry event is of size 4 but the output showed it as unsigned long and use "%lu". Change it to unsigned int and use "%u" in the print format that is displayed to user space. - Fix the trace event filter on strings Events can be filtered on numbers or string values. The return value checked from strncpy_from_kernel_nofault() and strncpy_from_user_nofault() was used to determine if reading the strings would fault or not. It would return fault if the value was non zero, which is basically meant that it was always considering the read as a fault. - Add selftest to test trace event string filtering In order to catch the breakage of the string filtering, add a self test to make sure that it continues to work. * tag 'trace-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: selftests: Add testing a user string to filters tracing: Fix filter string testing ftrace: Fix type of ftrace_graph_ent_entry.depth ftrace: fix incorrect hash size in register_ftrace_direct() ftrace: Free ftrace hashes after they are replaced in the subops code ftrace: Reinitialize hash to EMPTY_HASH after freeing ftrace: Initialize variables for ftrace_startup/shutdown_subops()
2025-04-19Merge tag 'nfsd-6.15-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - v6.15 libcrc clean-up makes invalid configurations possible - Fix a potential deadlock introduced during the v6.15 merge window * tag 'nfsd-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: nfsd: decrease sc_count directly if fail to queue dl_recall nfs: add missing selections of CONFIG_CRC32
2025-04-19Merge tag 'rust-fixes-6.15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux Pull rust fixes from Miguel Ojeda: "Toolchain and infrastructure: - Fix missing KASAN LLVM flags on first build (and fix spurious rebuilds) by skipping '--target' - Fix Make < 4.3 build error by using '$(pound)' - Fix UML build error by removing 'volatile' qualifier from io helpers - Fix UML build error by adding 'dma_{alloc,free}_attrs()' helpers - Clean gendwarfksyms warnings by avoiding to export '__pfx' symbols - Clean objtool warning by adding a new 'noreturn' function for 1.86.0 - Disable 'needless_continue' Clippy lint due to new 1.86.0 warnings - Add missing 'ffi' crate to 'generate_rust_analyzer.py' 'pin-init' crate: - Import a couple fixes from upstream" * tag 'rust-fixes-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: rust: helpers: Add dma_alloc_attrs() and dma_free_attrs() rust: helpers: Remove volatile qualifier from io helpers rust: kbuild: use `pound` to support GNU Make < 4.3 objtool/rust: add one more `noreturn` Rust function for Rust 1.86.0 rust: kasan/kbuild: fix missing flags on first build rust: disable `clippy::needless_continue` rust: kbuild: Don't export __pfx symbols rust: pin-init: use Markdown autolinks in Rust comments rust: pin-init: alloc: restrict `impl ZeroableOption` for `Box` to `T: Sized` scripts: generate_rust_analyzer: Add ffi crate
2025-04-19Merge tag 'drm-fixes-2025-04-19' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm fixes from Dave Airlie: "Easter rc3 pull request, fixes in all the usuals, amdgpu, xe, msm, with some i915/ivpu/mgag200/v3d fixes, then a couple of bits in dma-buf/gem. Hopefully has no easter eggs in it. dma-buf: - Correctly decrement refcounter on errors gem: - Fix test for imported buffers amdgpu: - Cleaner shader sysfs fix - Suspend fix - Fix doorbell free ordering - Video caps fix - DML2 memory allocation optimization - HDP fix i915: - Fix DP DSC configurations that require 3 DSC engines per pipe xe: - Fix LRC address being written too late for GuC - Fix notifier vs folio deadlock - Fix race betwen dma_buf unmap and vram eviction - Fix debugfs handling PXP terminations unconditionally msm: - Display: - Fix to call dpu_plane_atomic_check_pipe() for both SSPPs in case of multi-rect - Fix to validate plane_state pointer before using it in dpu_plane_virtual_atomic_check() - Fix to make sure dereferencing dpu_encoder_phys happens after making sure it is valid in _dpu_encoder_trigger_start() - Remove the remaining intr_tear_rd_ptr which we initialized to -1 because NO_IRQ indices start from 0 now - GPU: - Fix IB_SIZE overflow ivpu: - Fix debugging - Fixes to frequency - Support firmware API 3.28.3 - Flush jobs upon reset mgag200: - Set vblank start to correct values v3d: - Fix Indirect Dispatch" * tag 'drm-fixes-2025-04-19' of https://gitlab.freedesktop.org/drm/kernel: (26 commits) drm/msm/a6xx+: Don't let IB_SIZE overflow drm/xe/pxp: do not queue unneeded terminations from debugfs drm/xe/dma_buf: stop relying on placement in unmap drm/xe/userptr: fix notifier vs folio deadlock drm/xe: Set LRC addresses before guc load drm/mgag200: Fix value in <VBLKSTR> register drm/gem: Internally test import_attach for imported objects drm/amdgpu: Use the right function for hdp flush drm/amd/display/dml2: use vzalloc rather than kzalloc drm/amdgpu: Add back JPEG to video caps for carrizo and newer drm/amdgpu: fix warning of drm_mm_clean drm/amd: Forbid suspending into non-default suspend states drm/amdgpu: use a dummy owner for sysfs triggered cleaner shaders v4 drm/i915/dp: Check for HAS_DSC_3ENGINES while configuring DSC slices drm/i915/display: Add macro for checking 3 DSC engines dma-buf/sw_sync: Decrement refcount on error in sw_sync_ioctl_get_deadline() accel/ivpu: Add cmdq_id to job related logs accel/ivpu: Show NPU frequency in sysfs accel/ivpu: Fix the NPU's DPU frequency calculation accel/ivpu: Update FW Boot API to version 3.28.3 ...
2025-04-19Merge tag 'drm-msm-fixes-2025-04-18' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/msm into drm-fixes Fixes for v6.15-rc3 Display: - Fix to call dpu_plane_atomic_check_pipe() for both SSPPs in case of multi-rect - Fix to validate plane_state pointer before using it in dpu_plane_virtual_atomic_check() - Fix to make sure dereferencing dpu_encoder_phys happens after making sure it is valid in _dpu_encoder_trigger_start() - Remove the remaining intr_tear_rd_ptr which we initialized to -1 because NO_IRQ indices start from 0 now GPU: - Fix IB_SIZE overflow Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://lore.kernel.org/r/CAF6AEGtVKXEVdzUzFWmQE8JmK3nx_hp+ynOd-5j3vnfcU-sgOA@mail.gmail.com
2025-04-19Merge tag 'drm-xe-fixes-2025-04-18' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Driver Changes: - Fix LRC address being written too late for GuC - Fix notifier vs folio deadlock - Fix race betwen dma_buf unmap and vram eviction - Fix debugfs handling PXP terminations unconditionally Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/ndinq644zenywaaycxyfqqivsb2xer4z7err3dlpalbz33jfkm@ttabzsg6wnet
2025-04-18Merge tag '6.15-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull smb client fixes from Steve French: - Fix hard link lease key problem when close is deferred - Revert the socket lockdep/refcount workarounds done in cifs.ko now that it is fixed at the socket layer * tag '6.15-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: Revert "smb: client: fix TCP timers deadlock after rmmod" Revert "smb: client: Fix netns refcount imbalance causing leaks and use-after-free" smb3 client: fix open hardlink on deferred close file error
2025-04-18drm/msm/a6xx+: Don't let IB_SIZE overflowRob Clark
IB_SIZE is only b0..b19. Starting with a6xx gen3, additional fields were added above the IB_SIZE. Accidentially setting them can cause badness. Fix this by properly defining the CP_INDIRECT_BUFFER packet and using the generated builder macro to ensure unintended bits are not set. v2: add missing type attribute for IB_BASE v3: fix offset attribute in xml Reported-by: Connor Abbott <cwabbott0@gmail.com> Fixes: a83366ef19ea ("drm/msm/a6xx: add A640/A650 to gpulist") Signed-off-by: Rob Clark <robdclark@chromium.org> Patchwork: https://patchwork.freedesktop.org/patch/643396/
2025-04-18Merge tag 'i2c-host-fixes-6.15-rc3' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current i2c-host-fixes for v6.15-rc3 - ChromeOS EC tunnel: fix potential NULL pointer dereference
2025-04-18Merge tag 'x86-urgent-2025-04-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 fixes from Ingo Molnar: - Fix hypercall detection on Xen guests - Extend the AMD microcode loader SHA check to Zen5, to block loading of any unreleased standalone Zen5 microcode patches - Add new Intel CPU model number for Bartlett Lake - Fix the workaround for AMD erratum 1054 - Fix buggy early memory acceptance between SEV-SNP guests and the EFI stub * tag 'x86-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/sev: Avoid shared GHCB page for early memory acceptance x86/cpu/amd: Fix workaround for erratum 1054 x86/cpu: Add CPU model number for Bartlett Lake CPUs with Raptor Cove cores x86/microcode/AMD: Extend the SHA check to Zen5, block loading of any unreleased standalone Zen5 microcode patches x86/xen: Fix __xen_hypercall_setfunc()
2025-04-18Merge tag 'timers-urgent-2025-04-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Ingo Molnar: "Fix a lockdep false positive in the i8253 driver" * tag 'timers-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/i8253: Call clockevent_i8253_disable() with interrupts disabled
2025-04-18Merge tag 'perf-urgent-2025-04-18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 perf event fixes from Ingo Molnar: "Miscellaneous fixes and a hardware-enabling change: - Fix Intel uncore PMU IIO free running counters on SPR, ICX and SNR systems - Fix Intel PEBS buffer overflow handling - Fix skid in Intel PEBS sampling of user-space general purpose registers - Enable Panther Lake PMU support - similar to Lunar Lake" * tag 'perf-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Add Panther Lake support perf/x86/intel: Allow to update user space GPRs from PEBS records perf/x86/intel: Don't clear perf metrics overflow bit unconditionally perf/x86/intel/uncore: Fix the scale of IIO free running counters on SPR perf/x86/intel/uncore: Fix the scale of IIO free running counters on ICX perf/x86/intel/uncore: Fix the scale of IIO free running counters on SNR