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2024-04-26RISC-V: KVM: Add perf sampling support for guestsAtish Patra
KVM enables perf for guest via counter virtualization. However, the sampling can not be supported as there is no mechanism to enabled trap/emulate scountovf in ISA yet. Rely on the SBI PMU snapshot to provide the counter overflow data via the shared memory. In case of sampling event, the host first sets the guest's LCOFI interrupt and injects to the guest via irq filtering mechanism defined in AIA specification. Thus, ssaia must be enabled in the host in order to use perf sampling in the guest. No other AIA dependency w.r.t kernel is required. Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-15-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-26RISC-V: KVM: Implement SBI PMU Snapshot featureAtish Patra
PMU Snapshot function allows to minimize the number of traps when the guest access configures/access the hpmcounters. If the snapshot feature is enabled, the hypervisor updates the shared memory with counter data and state of overflown counters. The guest can just read the shared memory instead of trap & emulate done by the hypervisor. This patch doesn't implement the counter overflow yet. Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-14-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-26RISC-V: KVM: No need to exit to the user space if perf event failedAtish Patra
Currently, we return a linux error code if creating a perf event failed in kvm. That shouldn't be necessary as guest can continue to operate without perf profiling or profiling with firmware counters. Return appropriate SBI error code to indicate that PMU configuration failed. An error message in kvm already describes the reason for failure. Fixes: 0cb74b65d2e5 ("RISC-V: KVM: Implement perf support without sampling") Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-13-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-26RISC-V: KVM: No need to update the counter value during resetAtish Patra
The virtual counter value is updated during pmu_ctr_read. There is no need to update it in reset case. Otherwise, it will be counted twice which is incorrect. Fixes: 0cb74b65d2e5 ("RISC-V: KVM: Implement perf support without sampling") Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-12-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-26RISC-V: KVM: Fix the initial sample period valueAtish Patra
The initial sample period value when counter value is not assigned should be set to maximum value supported by the counter width. Otherwise, it may result in spurious interrupts. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20240420151741.962500-11-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-26drivers/perf: riscv: Implement SBI PMU snapshot functionAtish Patra
SBI v2.0 SBI introduced PMU snapshot feature which adds the following features. 1. Read counter values directly from the shared memory instead of csr read. 2. Start multiple counters with initial values with one SBI call. These functionalities optimizes the number of traps to the higher privilege mode. If the kernel is in VS mode while the hypervisor deploy trap & emulate method, this would minimize all the hpmcounter CSR read traps. If the kernel is running in S-mode, the benefits reduced to CSR latency vs DRAM/cache latency as there is no trap involved while accessing the hpmcounter CSRs. In both modes, it does saves the number of ecalls while starting multiple counter together with an initial values. This is a likely scenario if multiple counters overflow at the same time. Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-10-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22drivers/perf: riscv: Fix counter mask iteration for RV32Atish Patra
For RV32, used_hw_ctrs can have more than 1 word if the firmware chooses to interleave firmware/hardware counters indicies. Even though it's a unlikely scenario, handle that case by iterating over all the words instead of just using the first word. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-9-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISC-V: Use the minor version mask while computing sbi versionAtish Patra
As per the SBI specification, minor version is encoded in the lower 24 bits only. Make sure that the SBI version is computed with the appropriate mask. Currently, there is no minor version in use. Thus, it doesn't change anything functionality but it is good to be compliant with the specification. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-8-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISC-V: KVM: Rename the SBI_STA_SHMEM_DISABLE to a generic nameAtish Patra
SBI_STA_SHMEM_DISABLE is a macro to invoke disable shared memory commands. As this can be invoked from other SBI extension context as well, rename it to more generic name as SBI_SHMEM_DISABLE. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-7-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISC-V: Add SBI PMU snapshot definitionsAtish Patra
SBI PMU Snapshot function optimizes the number of traps to higher privilege mode by leveraging a shared memory between the S/VS-mode and the M/HS mode. Add the definitions for that extension and new error codes. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-6-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22drivers/perf: riscv: Use BIT macro for shifting operationsAtish Patra
It is a good practice to use BIT() instead of (1 << x). Replace the current usages with BIT(). Take this opportunity to replace few (1UL << x) with BIT() as well for consistency. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-5-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22drivers/perf: riscv: Read upper bits of a firmware counterAtish Patra
SBI v2.0 introduced a explicit function to read the upper 32 bits for any firmware counter width that is longer than 32bits. This is only applicable for RV32 where firmware counter can be 64 bit. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-4-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISC-V: Add FIRMWARE_READ_HI definitionAtish Patra
SBI v2.0 added another function to SBI PMU extension to read the upper bits of a counter with width larger than XLEN. Add the definition for that function. Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Clément Léger <cleger@rivosinc.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-3-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISC-V: Fix the typo in Scountovf CSR nameAtish Patra
The counter overflow CSR name is "scountovf" not "sscountovf". Fix the csr name. Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support") Reviewed-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20240420151741.962500-2-atishp@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISCV: KVM: Introduce vcpu->reset_cntx_lockYong-Xuan Wang
Originally, the use of kvm->lock in SBI_EXT_HSM_HART_START also avoids the simultaneous updates to the reset context of target VCPU. Since this lock has been replace with vcpu->mp_state_lock, and this new lock also protects the vcpu->mp_state. We have to add a separate lock for vcpu->reset_cntx. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20240417074528.16506-3-yongxuan.wang@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-22RISCV: KVM: Introduce mp_state_lock to avoid lock inversionYong-Xuan Wang
Documentation/virt/kvm/locking.rst advises that kvm->lock should be acquired outside vcpu->mutex and kvm->srcu. However, when KVM/RISC-V handling SBI_EXT_HSM_HART_START, the lock ordering is vcpu->mutex, kvm->srcu then kvm->lock. Although the lockdep checking no longer complains about this after commit f0f44752f5f6 ("rcu: Annotate SRCU's update-side lockdep dependencies"), it's necessary to replace kvm->lock with a new dedicated lock to ensure only one hart can execute the SBI_EXT_HSM_HART_START call for the target hart simultaneously. Additionally, this patch also rename "power_off" to "mp_state" with two possible values. The vcpu->mp_state_lock also protects the access of vcpu->mp_state. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20240417074528.16506-2-yongxuan.wang@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-08RISC-V: KVM: selftests: Add ebreak test supportChao Du
Initial support for RISC-V KVM ebreak test. Check the exit reason and the PC when guest debug is enabled. Also to make sure the guest could handle the ebreak exception without exiting to the VMM when guest debug is not enabled. Signed-off-by: Chao Du <duchao@eswincomputing.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20240402062628.5425-4-duchao@eswincomputing.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-08RISC-V: KVM: Handle breakpoint exits for VCPUChao Du
Exit to userspace for breakpoint traps. Set the exit_reason as KVM_EXIT_DEBUG before exit. Signed-off-by: Chao Du <duchao@eswincomputing.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20240402062628.5425-3-duchao@eswincomputing.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-08RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug()Chao Du
kvm_vm_ioctl_check_extension(): Return 1 if KVM_CAP_SET_GUEST_DEBUG is been checked. kvm_arch_vcpu_ioctl_set_guest_debug(): Update the guest_debug flags from userspace accordingly. Route the breakpoint exceptions to HS mode if the VCPU is being debugged by userspace, by clearing the corresponding bit in hedeleg. Initialize the hedeleg configuration in kvm_riscv_vcpu_setup_config(). Write the actual CSR in kvm_arch_vcpu_load(). Signed-off-by: Chao Du <duchao@eswincomputing.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20240402062628.5425-2-duchao@eswincomputing.com Signed-off-by: Anup Patel <anup@brainfault.org>
2024-04-07Linux 6.9-rc3Linus Torvalds
2024-04-07Merge tag 'x86-urgent-2024-04-07' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: - Fix MCE timer reinit locking - Fix/improve CoCo guest random entropy pool init - Fix SEV-SNP late disable bugs - Fix false positive objtool build warning - Fix header dependency bug - Fix resctrl CPU offlining bug * tag 'x86-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/retpoline: Add NOENDBR annotation to the SRSO dummy return thunk x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() x86/CPU/AMD: Track SNP host status with cc_platform_*() x86/cc: Add cc_platform_set/_clear() helpers x86/kvm/Kconfig: Have KVM_AMD_SEV select ARCH_HAS_CC_PLATFORM x86/coco: Require seeding RNG with RDRAND on CoCo systems x86/numa/32: Include missing <asm/pgtable_areas.h> x86/resctrl: Fix uninitialized memory read when last CPU of domain goes offline
2024-04-07Merge tag 'timers-urgent-2024-04-07' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Fix various timer bugs: - Fix a timer migration bug that may result in missed events - Fix timer migration group hierarchy event updates - Fix a PowerPC64 build warning - Fix a handful of DocBook annotation bugs" * tag 'timers-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timers/migration: Return early on deactivation timers/migration: Fix ignored event due to missing CPU update vdso: Use CONFIG_PAGE_SHIFT in vdso/datapage.h timers: Fix text inconsistencies and spelling tick/sched: Fix struct tick_sched doc warnings tick/sched: Fix various kernel-doc warnings timers: Fix kernel-doc format and add Return values time/timekeeping: Fix kernel-doc warnings and typos time/timecounter: Fix inline documentation
2024-04-07Merge tag 'perf-urgent-2024-04-07' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 perf fix from Ingo Molnar: "Fix a combined PEBS events bug on x86 Intel CPUs" * tag 'perf-urgent-2024-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/ds: Don't clear ->pebs_data_cfg for the last PEBS event
2024-04-06Merge tag 'nfsd-6.9-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - Address a slow memory leak with RPC-over-TCP - Prevent another NFS4ERR_DELAY loop during CREATE_SESSION * tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: nfsd: hold a lighter-weight client reference over CB_RECALL_ANY SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP
2024-04-06Merge tag 'i2c-for-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: "A host driver build fix" * tag 'i2c-for-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: pxa: hide unused icr_bits[] variable
2024-04-06Merge tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull xfs fix from Chandan Babu: - Allow creating new links to special files which were not associated with a project quota * tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: allow cross-linking special files without project quota
2024-04-06Merge tag '6.9-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull smb client fixes from Steve French: - fix to retry close to avoid potential handle leaks when server returns EBUSY - DFS fixes including a fix for potential use after free - fscache fix - minor strncpy cleanup - reconnect race fix - deal with various possible UAF race conditions tearing sessions down * tag '6.9-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect() smb: client: fix potential UAF in smb2_is_network_name_deleted() smb: client: fix potential UAF in is_valid_oplock_break() smb: client: fix potential UAF in smb2_is_valid_oplock_break() smb: client: fix potential UAF in smb2_is_valid_lease_break() smb: client: fix potential UAF in cifs_stats_proc_show() smb: client: fix potential UAF in cifs_stats_proc_write() smb: client: fix potential UAF in cifs_dump_full_key() smb: client: fix potential UAF in cifs_debug_files_proc_show() smb3: retrying on failed server close smb: client: serialise cifs_construct_tcon() with cifs_mount_mutex smb: client: handle DFS tcons in cifs_construct_tcon() smb: client: refresh referral without acquiring refpath_lock smb: client: guarantee refcounted children from parent session cifs: Fix caching to try to do open O_WRONLY as rdwr on server smb: client: fix UAF in smb2_reconnect_server() smb: client: replace deprecated strncpy with strscpy
2024-04-06x86/retpoline: Add NOENDBR annotation to the SRSO dummy return thunkBorislav Petkov (AMD)
srso_alias_untrain_ret() is special code, even if it is a dummy which is called in the !SRSO case, so annotate it like its real counterpart, to address the following objtool splat: vmlinux.o: warning: objtool: .export_symbol+0x2b290: data relocation to !ENDBR: srso_alias_untrain_ret+0x0 Fixes: 4535e1a4174c ("x86/bugs: Fix the SRSO mitigation on Zen3/4") Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/20240405144637.17908-1-bp@kernel.org
2024-04-06Merge branch 'linus' into x86/urgent, to pick up dependent commitIngo Molnar
We want to fix: 0e110732473e ("x86/retpoline: Do the necessary fixup to the Zen3/4 srso return thunk for !SRSO") So merge in Linus's latest into x86/urgent to have it available. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2024-04-06Merge tag 'i2c-host-fixes-6.9-rc3' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current An unused const variable kind of error has been fixed by placing the definition of icr_bits[] inside the ifdef block where it is used.
2024-04-05Merge tag 'firewire-fixes-6.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire fixes from Takashi Sakamoto: "The firewire-ohci kernel module has a parameter for verbose kernel logging. It is well-known that it logs the spurious IRQ for bus-reset event due to the unmasked register for IRQ event. This update fixes the issue" * tag 'firewire-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: ohci: mask bus reset interrupts between ISR and bottom half
2024-04-06firewire: ohci: mask bus reset interrupts between ISR and bottom halfAdam Goldman
In the FireWire OHCI interrupt handler, if a bus reset interrupt has occurred, mask bus reset interrupts until bus_reset_work has serviced and cleared the interrupt. Normally, we always leave bus reset interrupts masked. We infer the bus reset from the self-ID interrupt that happens shortly thereafter. A scenario where we unmask bus reset interrupts was introduced in 2008 in a007bb857e0b26f5d8b73c2ff90782d9c0972620: If OHCI_PARAM_DEBUG_BUSRESETS (8) is set in the debug parameter bitmask, we will unmask bus reset interrupts so we can log them. irq_handler logs the bus reset interrupt. However, we can't clear the bus reset event flag in irq_handler, because we won't service the event until later. irq_handler exits with the event flag still set. If the corresponding interrupt is still unmasked, the first bus reset will usually freeze the system due to irq_handler being called again each time it exits. This freeze can be reproduced by loading firewire_ohci with "modprobe firewire_ohci debug=-1" (to enable all debugging output). Apparently there are also some cases where bus_reset_work will get called soon enough to clear the event, and operation will continue normally. This freeze was first reported a few months after a007bb85 was committed, but until now it was never fixed. The debug level could safely be set to -1 through sysfs after the module was loaded, but this would be ineffectual in logging bus reset interrupts since they were only unmasked during initialization. irq_handler will now leave the event flag set but mask bus reset interrupts, so irq_handler won't be called again and there will be no freeze. If OHCI_PARAM_DEBUG_BUSRESETS is enabled, bus_reset_work will unmask the interrupt after servicing the event, so future interrupts will be caught as desired. As a side effect to this change, OHCI_PARAM_DEBUG_BUSRESETS can now be enabled through sysfs in addition to during initial module loading. However, when enabled through sysfs, logging of bus reset interrupts will be effective only starting with the second bus reset, after bus_reset_work has executed. Signed-off-by: Adam Goldman <adamg@pobox.com> Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
2024-04-05Merge tag 'spi-fix-v6.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A few small driver specific fixes, the most important being the s3c64xx change which is likely to be hit during normal operation" * tag 'spi-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: mchp-pci1xxx: Fix a possible null pointer dereference in pci1xxx_spi_probe spi: spi-fsl-lpspi: remove redundant spi_controller_put call spi: s3c64xx: Use DMA mode from fifo size
2024-04-05Merge tag 'regulator-fix-v6.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fix from Mark Brown: "One simple regualtor fix, fixing module autoloading on tps65132" * tag 'regulator-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: tps65132: Add of_match table
2024-04-05Merge tag 'regmap-fix-v6.9-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fixes from Mark Brown: "Richard found a nasty corner case in the maple tree code which he fixed, and also fixed a compiler warning which was showing up with the toolchain he uses and helpfully identified a possible incorrect error code which could have runtime impacts" * tag 'regmap-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: maple: Fix uninitialized symbol 'ret' warnings regmap: maple: Fix cache corruption in regcache_maple_drop()
2024-04-05Merge tag 'block-6.9-20240405' of git://git.kernel.dk/linuxLinus Torvalds
Pull block fixes from Jens Axboe: - NVMe pull request via Keith: - Atomic queue limits fixes (Christoph) - Fabrics fixes (Hannes, Daniel) - Discard overflow fix (Li) - Cleanup fix for null_blk (Damien) * tag 'block-6.9-20240405' of git://git.kernel.dk/linux: nvme-fc: rename free_ctrl callback to match name pattern nvmet-fc: move RCU read lock to nvmet_fc_assoc_exists nvmet: implement unique discovery NQN nvme: don't create a multipath node for zero capacity devices nvme: split nvme_update_zone_info nvme-multipath: don't inherit LBA-related fields for the multipath node block: fix overflow in blk_ioctl_discard() nullblk: Fix cleanup order in null_add_dev() error path
2024-04-05Merge tag 'io_uring-6.9-20240405' of git://git.kernel.dk/linuxLinus Torvalds
Pull io_uring fixes from Jens Axboe: - Backport of some fixes that came up during development of the 6.10 io_uring patches. This includes some kbuf cleanups and reference fixes. - Disable multishot read if we don't have NOWAIT support on the target - Fix for a dependency issue with workqueue flushing * tag 'io_uring-6.9-20240405' of git://git.kernel.dk/linux: io_uring/kbuf: hold io_buffer_list reference over mmap io_uring/kbuf: protect io_buffer_list teardown with a reference io_uring/kbuf: get rid of bl->is_ready io_uring/kbuf: get rid of lower BGID lists io_uring: use private workqueue for exit work io_uring: disable io-wq execution of multishot NOWAIT requests io_uring/rw: don't allow multishot reads without NOWAIT support
2024-04-05Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "The most important is the libsas fix, which is a problem for DMA to a kmalloc'd structure too small causing cache line interference. The other fixes (all in drivers) are mostly for allocation length fixes, error leg unwinding, suspend races and a missing retry" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: core: Fix MCQ mode dev command timeout scsi: libsas: Align SMP request allocation to ARCH_DMA_MINALIGN scsi: sd: Unregister device if device_add_disk() failed in sd_probe() scsi: ufs: core: WLUN suspend dev/link state error recovery scsi: mylex: Fix sysfs buffer lengths
2024-04-05Merge tag 'devicetree-fixes-for-6.9-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Fix NIOS2 boot with external DTB - Add missing synchronization needed between fw_devlink and DT overlay removals - Fix some unit-address regex's to be hex only - Drop some 10+ year old "unstable binding" statements - Add new SoCs to QCom UFS binding - Add TPM bindings to TPM maintainers * tag 'devicetree-fixes-for-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: nios2: Only use built-in devicetree blob if configured to do so dt-bindings: timer: narrow regex for unit address to hex numbers dt-bindings: soc: fsl: narrow regex for unit address to hex numbers dt-bindings: remoteproc: ti,davinci: remove unstable remark dt-bindings: clock: ti: remove unstable remark dt-bindings: clock: keystone: remove unstable remark of: module: prevent NULL pointer dereference in vsnprintf() dt-bindings: ufs: qcom: document SM6125 UFS dt-bindings: ufs: qcom: document SC7180 UFS dt-bindings: ufs: qcom: document SC8180X UFS of: dynamic: Synchronize of_changeset_destroy() with the devlink removals driver core: Introduce device_link_wait_removal() docs: dt-bindings: add missing address/size-cells to example MAINTAINERS: Add TPM DT bindings to TPM maintainers
2024-04-05Merge tag 'mm-hotfixes-stable-2024-04-05-11-30' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "8 hotfixes, 3 are cc:stable There are a couple of fixups for this cycle's vmalloc changes and one for the stackdepot changes. And a fix for a very old x86 PAT issue which can cause a warning splat" * tag 'mm-hotfixes-stable-2024-04-05-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: stackdepot: rename pool_index to pool_index_plus_1 x86/mm/pat: fix VM_PAT handling in COW mappings MAINTAINERS: change vmware.com addresses to broadcom.com selftests/mm: include strings.h for ffsl mm: vmalloc: fix lockdep warning mm: vmalloc: bail out early in find_vmap_area() if vmap is not init init: open output files from cpio unpacking with O_LARGEFILE mm/secretmem: fix GUP-fast succeeding on secretmem folios
2024-04-05Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fix from Catalin Marinas: "arm64/ptrace fix to use the correct SVE layout based on the saved floating point state rather than the TIF_SVE flag. The latter may be left on during syscalls even if the SVE state is discarded" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64/ptrace: Use saved floating point state type to determine SVE layout
2024-04-05Merge tag 'riscv-for-linus-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - A fix for an __{get,put}_kernel_nofault to avoid an uninitialized value causing spurious failures - compat_vdso.so.dbg is now installed to the standard install location - A fix to avoid initializing PERF_SAMPLE_BRANCH_*-related events, as they aren't supported and will just later fail - A fix to make AT_VECTOR_SIZE_ARCH correct now that we're providing AT_MINSIGSTKSZ - pgprot_nx() is now implemented, which fixes vmap W^X protection - A fix for the vector save/restore code, which at least manifests as corrupted vector state when a signal is taken - A fix for a race condition in instruction patching - A fix to avoid leaking the kernel-mode GP to userspace, which is a kernel pointer leak that can be used to defeat KASLR in various ways - A handful of smaller fixes to build warnings, an overzealous printk, and some missing tracing annotations * tag 'riscv-for-linus-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: process: Fix kernel gp leakage riscv: Disable preemption when using patch_map() riscv: Fix warning by declaring arch_cpu_idle() as noinstr riscv: use KERN_INFO in do_trap riscv: Fix vector state restore in rt_sigreturn() riscv: mm: implement pgprot_nx riscv: compat_vdso: align VDSOAS build log RISC-V: Update AT_VECTOR_SIZE_ARCH for new AT_MINSIGSTKSZ riscv: Mark __se_sys_* functions __used drivers/perf: riscv: Disable PERF_SAMPLE_BRANCH_* while not supported riscv: compat_vdso: install compat_vdso.so.dbg to /lib/modules/*/vdso/ riscv: hwprobe: do not produce frtace relocation riscv: Fix spurious errors from __get/put_kernel_nofault riscv: mm: Fix prototype to avoid discarding const
2024-04-05Merge tag 's390-6.9-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Alexander Gordeev: - Fix missing NULL pointer check when determining guest/host fault - Mark all functions in asm/atomic_ops.h, asm/atomic.h and asm/preempt.h as __always_inline to avoid unwanted instrumentation - Fix removal of a Processor Activity Instrumentation (PAI) sampling event in PMU device driver - Align system call table on 8 bytes * tag 's390-6.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/entry: align system call table on 8 bytes s390/pai: fix sampling event removal for PMU device driver s390/preempt: mark all functions __always_inline s390/atomic: mark all functions __always_inline s390/mm: fix NULL pointer dereference
2024-04-05Merge tag 'pm-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Fix a recent Energy Model change that went against a recent scheduler change made independently (Vincent Guittot)" * tag 'pm-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: EM: fix wrong utilization estimation in em_cpu_energy()
2024-04-05Merge tag 'thermal-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control fixes from Rafael Wysocki: "These fix two power allocator thermal governor issues and an ACPI thermal driver regression that all were introduced during the 6.8 development cycle. Specifics: - Allow the power allocator thermal governor to bind to a thermal zone without cooling devices and/or without trip points (Nikita Travkin) - Make the ACPI thermal driver register a tripless thermal zone when it cannot find any usable trip points instead of returning an error from acpi_thermal_add() (Stephen Horvath)" * tag 'thermal-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: gov_power_allocator: Allow binding without trip points thermal: gov_power_allocator: Allow binding without cooling devices ACPI: thermal: Register thermal zones without valid trip points
2024-04-05Merge tag 'gpio-fixes-for-v6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - make sure GPIO devices are registered with the subsystem before trying to return them to a caller of gpio_device_find() - fix two issues with incorrect sanitization of the interrupt labels * tag 'gpio-fixes-for-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: cdev: fix missed label sanitizing in debounce_setup() gpio: cdev: check for NULL labels when sanitizing them for irqs gpiolib: Fix triggering "kobject: 'gpiochipX' is not initialized, yet" kobject_get() errors
2024-04-05Merge tag 'ata-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux Pull ata fixes from Damien Le Moal: - Compilation warning fixes from Arnd: one in the sata_sx4 driver due to an incorrect calculation of the parameters passed to memcpy() and another one in the sata_mv driver when CONFIG_PCI is not set - Drop the owner driver field assignment in the pata_macio driver. That is not needed as the PCI core code does that already (Krzysztof) - Remove an unusued field in struct st_ahci_drv_data of the ahci_st driver (Christophe) - Add a missing clock probe error check in the sata_gemini driver (Chen) * tag 'ata-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux: ata: sata_gemini: Check clk_enable() result ata: sata_mv: Fix PCI device ID table declaration compilation warning ata: ahci_st: Remove an unused field in struct st_ahci_drv_data ata: pata_macio: drop driver owner assignment ata: sata_sx4: fix pdc20621_get_from_dimm() on 64-bit
2024-04-05Merge tag 'sound-6.9-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This became a bit bigger collection of patches, but almost all are about device-specific fixes, and should be safe for 6.9: - Lots of ASoC Intel SOF-related fixes/updates - Locking fixes in SoundWire drivers - ASoC AMD ACP/SOF updates - ASoC ES8326 codec fixes - HD-audio codec fixes and quirks - A regression fix in emu10k1 synth code" * tag 'sound-6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (49 commits) ASoC: SOF: Core: Add remove_late() to sof_init_environment failure path ASoC: SOF: amd: fix for false dsp interrupts ASoC: SOF: Intel: lnl: Disable DMIC/SSP offload on remove ASoC: Intel: avs: boards: Add modules description ASoC: codecs: ES8326: Removing the control of ADC_SCALE ASoC: codecs: ES8326: Solve a headphone detection issue after suspend and resume ASoC: codecs: ES8326: modify clock table ASoC: codecs: ES8326: Solve error interruption issue ALSA: line6: Zero-initialize message buffers ALSA: hda/realtek: cs35l41: Support ASUS ROG G634JYR ALSA: hda/realtek: Update Panasonic CF-SZ6 quirk to support headset with microphone ALSA: hda/realtek: Add sound quirks for Lenovo Legion slim 7 16ARHA7 models Revert "ALSA: emu10k1: fix synthesizer sample playback position and caching" OSS: dmasound/paula: Mark driver struct with __refdata to prevent section mismatch ALSA: hda/realtek: Add quirks for ASUS Laptops using CS35L56 ASoC: amd: acp: fix for acp_init function error handling ASoC: tas2781: mark dvc_tlv with __maybe_unused ASoC: ops: Fix wraparound for mask in snd_soc_get_volsw ASoC: rt-sdw*: add __func__ to all error logs ASoC: rt722-sdca-sdw: fix locking sequence ...
2024-04-05Merge tag 'drm-fixes-2024-04-05' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm fixes from Dave Airlie: "Weekly fixes, mostly xe and i915, amdgpu on a week off, otherwise a nouveau fix for a crash with new vulkan cts tests, and a couple of cleanups and misc fixes. display: - fix typos in kerneldoc prime: - unbreak dma-buf export for virt-gpu nouveau: - uvmm: fix remap address calculation - minor cleanups panfrost: - fix power-transition timeouts xe: - Stop using system_unbound_wq for preempt fences - Fix saving unordered rebinding fences by attaching them as kernel feces to the vm's resv - Fix TLB invalidation fences completing out of order - Move rebind TLB invalidation to the ring ops to reduce the latency i915: - A few DisplayPort related fixes - eDP PSR fixes - Remove some VM space restrictions on older platforms - Disable automatic load CCS load balancing" * tag 'drm-fixes-2024-04-05' of https://gitlab.freedesktop.org/drm/kernel: (22 commits) drm/xe: Use ordered wq for preempt fence waiting drm/xe: Move vma rebinding to the drm_exec locking loop drm/xe: Make TLB invalidation fences unordered drm/xe: Rework rebinding drm/xe: Use ring ops TLB invalidation for rebinds drm/i915/mst: Reject FEC+MST on ICL drm/i915/mst: Limit MST+DSC to TGL+ drm/i915/dp: Fix the computation for compressed_bpp for DISPLAY < 13 drm/i915/gt: Enable only one CCS for compute workload drm/i915/gt: Do not generate the command streamer for all the CCS drm/i915/gt: Disable HW load balancing for CCS drm/i915/gt: Limit the reserved VM space to only the platforms that need it drm/i915/psr: Fix intel_psr2_sel_fetch_et_alignment usage drm/i915/psr: Move writing early transport pipe src drm/i915/psr: Calculate PIPE_SRCSZ_ERLY_TPT value drm/i915/dp: Remove support for UHBR13.5 drm/i915/dp: Fix DSC state HW readout for SST connectors drm/display: fix typo drm/prime: Unbreak virtgpu dma-buf export nouveau/uvmm: fix addr/range calcs for remap operations ...
2024-04-05stackdepot: rename pool_index to pool_index_plus_1Peter Collingbourne
Commit 3ee34eabac2a ("lib/stackdepot: fix first entry having a 0-handle") changed the meaning of the pool_index field to mean "the pool index plus 1". This made the code accessing this field less self-documenting, as well as causing debuggers such as drgn to not be able to easily remain compatible with both old and new kernels, because they typically do that by testing for presence of the new field. Because stackdepot is a debugging tool, we should make sure that it is debugger friendly. Therefore, give the field a different name to improve readability as well as enabling debugger backwards compatibility. This is needed in 6.9, which would otherwise become an odd release with the new semantics and old name so debuggers wouldn't recognize the new semantics there. Fixes: 3ee34eabac2a ("lib/stackdepot: fix first entry having a 0-handle") Link: https://lkml.kernel.org/r/20240402001500.53533-1-pcc@google.com Link: https://linux-review.googlesource.com/id/Ib3e70c36c1d230dd0a118dc22649b33e768b9f88 Signed-off-by: Peter Collingbourne <pcc@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Alexander Potapenko <glider@google.com> Acked-by: Marco Elver <elver@google.com> Acked-by: Oscar Salvador <osalvador@suse.de> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Omar Sandoval <osandov@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
generated by cgit (git 2.34.1) at 2025-05-30 20:09:02 +0000