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2023-06-26Merge branch 'sfc-next'David S. Miller
Edward Cree says: ==================== sfc: fix unaligned access in loopback selftests Arnd reported that the sfc drivers each define a packed loopback_payload structure with an ethernet header followed by an IP header, whereas the kernel definition of iphdr specifies that this is 4-byte aligned, causing a W=1 warning. Fix this in each case by adding two bytes of leading padding to the struct, taking care that these are not sent on the wire. Tested on EF10; build-tested on Siena and Falcon. Changed in v2: * added __aligned(4) to payload struct definitions (Arnd) * fixed dodgy whitespace (checkpatch) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-26sfc: falcon: use padding to fix alignment in loopback testEdward Cree
Add two bytes of padding to the start of struct ef4_loopback_payload, which are not sent on the wire. This ensures the 'ip' member is 4-byte aligned, preventing the following W=1 warning: net/ethernet/sfc/falcon/selftest.c:43:15: error: field ip within 'struct ef4_loopback_payload' is less aligned than 'struct iphdr' and is usually due to 'struct ef4_loopback_payload' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access] struct iphdr ip; Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-26sfc: siena: use padding to fix alignment in loopback testEdward Cree
Add two bytes of padding to the start of struct efx_loopback_payload, which are not sent on the wire. This ensures the 'ip' member is 4-byte aligned, preventing the following W=1 warning: net/ethernet/sfc/siena/selftest.c:46:15: error: field ip within 'struct efx_loopback_payload' is less aligned than 'struct iphdr' and is usually due to 'struct efx_loopback_payload' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access] struct iphdr ip; Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-26sfc: use padding to fix alignment in loopback testEdward Cree
Add two bytes of padding to the start of struct efx_loopback_payload, which are not sent on the wire. This ensures the 'ip' member is 4-byte aligned, preventing the following W=1 warning: net/ethernet/sfc/selftest.c:46:15: error: field ip within 'struct efx_loopback_payload' is less aligned than 'struct iphdr' and is usually due to 'struct efx_loopback_payload' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access] struct iphdr ip; Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-26kbuild: Drop -Wdeclaration-after-statementPeter Zijlstra
With the advent on scope-based resource management it comes really tedious to abide by the contraints of -Wdeclaration-after-statement. It will still be recommeneded to place declarations at the start of a scope where possible, but it will no longer be enforced. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/CAHk-%3Dwi-RyoUhbChiVaJZoZXheAwnJ7OO%3DGxe85BkPAd93TwDA%40mail.gmail.com
2023-06-26locking: Introduce __cleanup() based infrastructurePeter Zijlstra
Use __attribute__((__cleanup__(func))) to build: - simple auto-release pointers using __free() - 'classes' with constructor and destructor semantics for scope-based resource management. - lock guards based on the above classes. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20230612093537.614161713%40infradead.org
2023-06-26apparmor: Free up __cleanup() namePeter Zijlstra
In order to use __cleanup for __attribute__((__cleanup__(func))) the name must not be used for anything else. Avoid the conflict. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: John Johansen <john.johansen@canonical.com> Link: https://lkml.kernel.org/r/20230612093537.536441207%40infradead.org
2023-06-26dmaengine: ioat: Free up __cleanup() namePeter Zijlstra
In order to use __cleanup for __attribute__((__cleanup__(func))) the name must not be used for anything else. Avoid the conflict. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Dave Jiang <dave.jiang@intel.com> Link: https://lkml.kernel.org/r/20230612093537.467120754%40infradead.org
2023-06-26Merge tag 'irqchip-6.5' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates from Marc Zyngier: - A number of Loogson/Loogarch fixes - Allow the core code to retrigger an interrupt that has fired while the same interrupt is being handled on another CPU, papering over a GICv3 architecture issue - Work around an integration problem on ASR8601, where the CPU numbering isn't representable in the GIC implementation... - Add some missing interrupt to the STM32 irqchip - A bunch of warning squashing triggered by W=1 builds Link: https://lore.kernel.org/r/20230623224345.3577134-1-maz@kernel.org
2023-06-26bsr: fix build problem with bsr_class static cleanupGreg Kroah-Hartman
In commit e55ce9fd3d8f ("bsr: make bsr_class a static const structure"), the bsr_init function was converted to handle a static class structure, but the conversion got a variable name wrong, which caused build errors so fix that up. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Ivan Orlov <ivan.orlov0322@gmail.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20230626142537.755ec782@canb.auug.org.au Fixes: e55ce9fd3d8f ("bsr: make bsr_class a static const structure") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-26Merge tag 'timers-v6.5-rc1' of ↵Thomas Gleixner
https://git.linaro.org/people/daniel.lezcano/linux into timers/core Pull clockevent/source updates from Daniel Lezcano: - Fix memory leak on Cadence TTC at probe time (Feng Mingxi) - Use the pm_sleep_ptr macro for the Ingenic driver (Paul Cercueil) - Relocate the PMW timer Loongson from the mips arch directory to the drivers/clocksource (Keguang Zhang) - Use the same function names instead of using aliases and move data defined in the header to the driver directly as this one is the only user of the header file and remove this one on i.MX GPT (Uwe Kleine-König) - Convert Broadcom Kona family timer bindings to DT schema (Michael Kelley) - Add DT bindings for Ralink SoCs timer (Sergio Paracuellos)
2023-06-26sfc: fix crash when reading stats while NIC is resettingEdward Cree
efx_net_stats() (.ndo_get_stats64) can be called during an ethtool selftest, during which time nic_data->mc_stats is NULL as the NIC has been fini'd. In this case do not attempt to fetch the latest stats from the hardware, else we will crash on a NULL dereference: BUG: kernel NULL pointer dereference, address: 0000000000000038 RIP efx_nic_update_stats abridged calltrace: efx_ef10_update_stats_pf efx_net_stats dev_get_stats dev_seq_printf_stats Skipping the read is safe, we will simply give out stale stats. To ensure that the free in efx_ef10_fini_nic() does not race against efx_ef10_update_stats_pf(), which could cause a TOCTTOU bug, take the efx->stats_lock in fini_nic (it is already held across update_stats). Fixes: d3142c193dca ("sfc: refactor EF10 stats handling") Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-26crypto: sm2 - Provide sm2_compute_z_digest when sm2 is disabledHerbert Xu
When sm2 is disabled we need to provide an implementation of sm2_compute_z_digest. Fixes: e5221fa6a355 ("KEYS: asymmetric: Move sm2 code into x509_public_key") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306231917.utO12sx8-lkp@intel.com/ Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-06-26MIPS: Loongson64: DTS: Add RTC support to Loongson-2K1000Binbin Zhou
The module is now supported, enable it. Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-06-26MIPS: Loongson64: DTS: Add RTC support to LS7A PCHBinbin Zhou
The RTC module is now supported, enable it. Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-06-26Documentation: PCI: correct spellingRandy Dunlap
Correct spelling problems for Documentation/PCI/ as reported by codespell. Link: https://lore.kernel.org/linux-pci/20230209071400.31476-14-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2023-06-26OPP: Use dev_err_probe() when failing to get icc_pathAndrew Halaney
This, in tandem with dynamic debug, can print useful information about -EPROBE_DEFFER like below, and keeps similar behavior for other errors: [ 16.561072] cpu cpu0: error -EPROBE_DEFER: dev_pm_opp_of_find_icc_paths: Unable to get path0 [ 16.575777] platform 18591000.cpufreq: deferred probe pending Signed-off-by: Andrew Halaney <ahalaney@redhat.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-06-26cpufreq: qcom-cpufreq-hw: Use dev_err_probe() when failing to get icc pathsAndrew Halaney
This way, if there's an issue (in this case a -EPROBE_DEFER), you can get useful output: [root@dhcp19-243-150 ~]# cat /sys/kernel/debug/devices_deferred 18591000.cpufreq qcom-cpufreq-hw: Failed to find icc paths Signed-off-by: Andrew Halaney <ahalaney@redhat.com> Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-06-26netfilter: nf_tables: limit allowed range via nla_policyFlorian Westphal
These NLA_U32 types get stored in u8 fields, reject invalid values instead of silently casting to u8. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26netfilter: nf_tables: Introduce NFT_MSG_GETSETELEM_RESETPhil Sutter
Analogous to NFT_MSG_GETOBJ_RESET, but for set elements with a timeout or attached stateful expressions like counters or quotas - reset them all at once. Respect a per element timeout value if present to reset the 'expires' value to. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26netfilter: snat: evict closing tcp entries on reply tuple collisionFlorian Westphal
When all tried source tuples are in use, the connection request (skb) and the new conntrack will be dropped in nf_confirm() due to the non-recoverable clash. Make it so that the last 32 attempts are allowed to evict a colliding entry if this connection is already closing and the new sequence number has advanced past the old one. Such "all tuples taken" secenario can happen with tcp-rpc workloads where same dst:dport gets queried repeatedly. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26netfilter: nf_tables: permit update of set sizeFlorian Westphal
Now that set->nelems is always updated permit update of the sets max size. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26netfilter: ipset: remove rcu_read_lock_bh pair from ip_set_testFlorian Westphal
Callers already hold rcu_read_lock. Prior to RCU conversion this used to be a read_lock_bh(), but now the bh-disable isn't needed anymore. Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26netfilter: nft_payload: rebuild vlan header when neededPablo Neira Ayuso
Skip rebuilding the vlan header when accessing destination and source mac address. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26x86: xen: add missing prototypesArnd Bergmann
These function are all called from assembler files, or from inline assembler, so there is no immediate need for a prototype in a header, but if -Wmissing-prototypes is enabled, the compiler warns about them: arch/x86/xen/efi.c:130:13: error: no previous prototype for 'xen_efi_init' [-Werror=missing-prototypes] arch/x86/platform/pvh/enlighten.c:120:13: error: no previous prototype for 'xen_prepare_pvh' [-Werror=missing-prototypes] arch/x86/xen/enlighten_pv.c:1233:34: error: no previous prototype for 'xen_start_kernel' [-Werror=missing-prototypes] arch/x86/xen/irq.c:22:14: error: no previous prototype for 'xen_force_evtchn_callback' [-Werror=missing-prototypes] arch/x86/entry/common.c:302:24: error: no previous prototype for 'xen_pv_evtchn_do_upcall' [-Werror=missing-prototypes] Declare all of them in an appropriate header file to avoid the warnings. For consistency, also move the asm_cpu_bringup_and_idle() declaration out of smp_pv.c. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20230614073501.10101-3-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26x86/xen: add prototypes for paravirt mmu functionsJuergen Gross
The paravirt MMU functions called via the PV_CALLEE_SAVE_REGS_THUNK() macro can't be defined to be static, as the macro is generating a function via asm() statement calling the paravirt MMU function. In order to avoid warnings when specifying "-Wmissing-prototypes" for the build, add local prototypes (there should never be any external caller of those functions). Reported-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20230614073501.10101-2-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26iscsi_ibft: Fix finding the iBFT under Xen Dom 0Ross Lagerwall
To facilitate diskless iSCSI boot, the firmware can place a table of configuration details in memory called the iBFT. The presence of this table is not specified, nor is the precise location (and it's not in the E820) so the kernel has to search for a magic marker to find it. When running under Xen, Dom 0 does not have access to the entire host's memory, only certain regions which are identity-mapped which means that the pseudo-physical address in Dom0 == real host physical address. Add the iBFT search bounds as a reserved region which causes it to be identity-mapped in xen_set_identity_and_remap_chunk() which allows Dom0 access to the specific physical memory to correctly search for the iBFT magic marker (and later access the full table). This necessitates moving the call to reserve_ibft_region() somewhat later so that it is called after e820__memory_setup() which is when the Xen identity mapping adjustments are applied. The precise location of the call is not too important so I've put it alongside dmi_setup() which does similar scanning of memory for configuration tables. Finally in the iBFT find code, instead of using isa_bus_to_virt() which doesn't do the right thing under Xen, use early_memremap() like the dmi_setup() code does. The result of these changes is that it is possible to boot a diskless Xen + Dom0 running off an iSCSI disk whereas previously it would fail to find the iBFT and consequently, the iSCSI root disk. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Acked-by: Konrad Rzeszutek Wilk <konrad@darnok.org> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> # for x86 Link: https://lore.kernel.org/r/20230605102840.1521549-1-ross.lagerwall@citrix.com Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26xen: xen_debug_interrupt prototype to global headerArnd Bergmann
The xen_debug_interrupt() function is only called on x86, which has a prototype in an architecture specific header, but the definition also exists on others, where the lack of a prototype causes a W=1 warning: drivers/xen/events/events_2l.c:264:13: error: no previous prototype for 'xen_debug_interrupt' [-Werror=missing-prototypes] Move the prototype into a global header instead to avoid this warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Link: https://lore.kernel.org/r/20230517124525.929201-1-arnd@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26ksmbd: Replace one-element array with flexible-array memberGustavo A. R. Silva
One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct smb_negotiate_req. This results in no differences in binary output. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/317 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: Use struct_size() helper in ksmbd_negotiate_smb_dialect()Gustavo A. R. Silva
Prefer struct_size() over open-coded versions. Link: https://github.com/KSPP/linux/issues/160 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: add missing compound request handing in some commandsNamjae Jeon
This patch add the compound request handling to the some commands. Existing clients do not send these commands as compound requests, but ksmbd should consider that they may come. Cc: stable@vger.kernel.org Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: fix out of bounds read in smb2_sess_setupNamjae Jeon
ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup(). Cc: stable@vger.kernel.org Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-21355 Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: Replace the ternary conditional operator with min()Lu Hongfei
It would be better to replace the traditional ternary conditional operator with min() in compare_sids. Signed-off-by: Lu Hongfei <luhongfei@vivo.com> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: use kvzalloc instead of kvmallocNamjae Jeon
Use kvzalloc instead of kvmalloc. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: Change the return value of ksmbd_vfs_query_maximal_access to voidLu Hongfei
The return value of ksmbd_vfs_query_maximal_access is meaningless, it is better to modify it to void. Signed-off-by: Lu Hongfei <luhongfei@vivo.com> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: return a literal instead of 'err' in ksmbd_vfs_kern_path_locked()Namjae Jeon
Return a literal instead of 'err' in ksmbd_vfs_kern_path_locked(). Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: use kzalloc() instead of __GFP_ZERONamjae Jeon
Use kzalloc() instead of __GFP_ZERO. Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26ksmbd: remove unused ksmbd_tree_conn_share functionNamjae Jeon
Remove unused ksmbd_tree_conn_share function. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26powerpc/iommu: TCEs are incorrectly manipulated with DLPAR add/remove of memoryGaurav Batra
When memory is dynamically added/removed, iommu_mem_notifier() is invoked. This routine traverses through all the DMA windows (DDW only, not default windows) to add/remove "direct" TCE mappings. The routines for this purpose are tce_clearrange_multi_pSeriesLP() and tce_clearrange_multi_pSeriesLP(). Both these routines are designed for Direct mapped DMA windows only. The issue is that there could be some DMA windows in the list which are not "direct" mapped. Calling these routines will either, 1) remove some dynamically mapped TCEs, Or 2) try to add TCEs which are out of bounds and HCALL returns H_PARAMETER Here are the side affects when these routines are incorrectly invoked for "dynamically" mapped DMA windows. tce_setrange_multi_pSeriesLP() This adds direct mapped TCEs. Now, this could invoke HCALL to add TCEs with out-of-bound range. In this scenario, HCALL will return H_PARAMETER and DLAR ADD of memory will fail. tce_clearrange_multi_pSeriesLP() This will remove range of TCEs. The TCE range that is calculated, depending on the memory range being added, could infact be mapping some other memory address (for dynamic DMA window scenario). This will wipe out those TCEs. The solution is for iommu_mem_notifier() to only invoke these routines for "direct" mapped DMA windows. Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> [mpe: Initialise direct at allocation time in ddw_list_new_entry()] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230613171641.15641-1-gbatra@linux.vnet.ibm.com
2023-06-25Merge branch 'for-6.5/cxl-rch-eh' into for-6.5/cxlDan Williams
Pick up the first half of the RCH error handling series. The back half needs some fixups for test regressions. Small conflicts with the PMU work around register enumeration and setup helpers.
2023-06-25Merge branch 'for-6.5/cxl-perf' into for-6.5/cxlDan Williams
Pick up initial support for the CXL 3.0 performance monitoring definition. Small conflicts with the firmware update work as they both placed their init code in the same location.
2023-06-25docs: perf: Minimal introduction the the CXL PMU device and driverJonathan Cameron
Very basic introduction to the device and the current driver support provided. I expect to expand on this in future versions of this patch set. Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20230526095824.16336-6-Jonathan.Cameron@huawei.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25perf: CXL Performance Monitoring Unit driverJonathan Cameron
CXL rev 3.0 introduces a standard performance monitoring hardware block to CXL. Instances are discovered using CXL Register Locator DVSEC entries. Each CXL component may have multiple PMUs. This initial driver supports a subset of types of counter. It supports counters that are either fixed or configurable, but requires that they support the ability to freeze and write value whilst frozen. Development done with QEMU model which will be posted shortly. Example: $ perf stat -a -e cxl_pmu_mem0.0/h2d_req_snpcur/ -e cxl_pmu_mem0.0/h2d_req_snpdata/ -e cxl_pmu_mem0.0/clock_ticks/ sleep 1 Performance counter stats for 'system wide': 96,757,023,244,321 cxl_pmu_mem0.0/h2d_req_snpcur/ 96,757,023,244,365 cxl_pmu_mem0.0/h2d_req_snpdata/ 193,514,046,488,653 cxl_pmu_mem0.0/clock_ticks/ 1.090539600 seconds time elapsed Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20230526095824.16336-5-Jonathan.Cameron@huawei.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25Merge branch 'for-6.5/cxl-region-fixes' into for-6.5/cxlDan Williams
Pick up the recent fixes to how CPU caches are managed relative to region setup / teardown, and make sure that all decoders transition successfully before updating the region state from COMMIT => ACTIVE.
2023-06-25Merge branch 'for-6.5/cxl-type-2' into for-6.5/cxlDan Williams
Pick up the driver cleanups identified in preparation for CXL "type-2" (accelerator) device support. The major change here from a conflict generation perspective is the split of 'struct cxl_memdev_state' from the core 'struct cxl_dev_state'. Since an accelerator may not care about all the optional features that are standard on a CXL "type-3" (host-only memory expander) device. A silent conflict also occurs with the move of the endpoint port to be a formal property of a 'struct cxl_memdev' rather than drvdata.
2023-06-25Linux 6.4v6.4Linus Torvalds
2023-06-26rtc: Add rtc driver for the Loongson family chipsBinbin Zhou
The Loongson family chips use an on-chip counter 0 (Time Of Year counter) as the RTC. We will refer to them as rtc-loongson. Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: Yang Ling <gnaygnil@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@kernel.org> Signed-off-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # LS7A Link: https://lore.kernel.org/r/0c5171156390f614d72f36ceb04a20f432ca639e.1685693501.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26rtc: Remove the Loongson-1 RTC driverBinbin Zhou
Remove the ls1x-rtc driver as it is obsolete. We will continue to support the ls1x RTC in the upcoming Loongson unified RTC driver rtc-loongson. Cc: Keguang Zhang <keguang.zhang@gmail.com> Cc: zhao zhang <zhzhl555@gmail.com> Cc: Yang Ling <gnaygnil@gmail.com> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Acked-by: Keguang Zhang <keguang.zhang@gmail.com> Link: https://lore.kernel.org/r/c38c666015a162d7031b20a48209ce577bab62cd.1685693501.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatiblesBinbin Zhou
Move Loongson RTC bindings from trivial-rtc.yaml into loongson,rtc.yaml. The architectures associated with this driver use the built-in DTB, so we can just drop the compatible(rtc-ls2x) with wildcards. Also, soc-based compatible is more accurate for hardware differences between chips. Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/1b0bb443bd74647c17b7902f3d719700f81a1dba.1685693501.git.zhoubinbin@loongson.cn Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-25Merge branch 'for-6.5/cxl-fwupd' into for-6.5/cxlDan Williams
Add the first typical (non-sanitization) consumer of the new background command infrastructure, firmware update. Given both firmware-update and sanitization were developed in parallel from the common background-command baseline, resolve some minor context conflicts.
generated by cgit (git 2.34.1) at 2025-09-13 17:59:17 +0000