summaryrefslogtreecommitdiff
path: root/arch
AgeCommit message (Collapse)AuthorFilesLines
2018-07-13ARM: net: bpf: improve 64-bit ALU implementationRussell King1-5/+24
Improbe the 64-bit ALU implementation from: movw r8, #65532 movt r8, #65535 movw r9, #65535 movt r9, #65535 ldr r7, [fp, #-44] adds r7, r7, r8 str r7, [fp, #-44] ldr r7, [fp, #-40] adc r7, r7, r9 str r7, [fp, #-40] to: movw r8, #65532 movt r8, #65535 movw r9, #65535 movt r9, #65535 ldrd r6, [fp, #-44] adds r6, r6, r8 adc r7, r7, r9 strd r6, [fp, #-44] Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13ARM: net: bpf: improve 64-bit store implementationRussell King1-26/+26
Improve the 64-bit store implementation from: ldr r6, [fp, #-8] str r8, [r6] ldr r6, [fp, #-8] mov r7, #4 add r7, r6, r7 str r9, [r7] to: ldr r6, [fp, #-8] str r8, [r6] str r9, [r6, #4] We leave the store as two separate STR instructions rather than using STRD as the store may not be aligned, and STR can handle misalignment. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13ARM: net: bpf: improve 64-bit sign-extended immediate loadRussell King1-4/+3
Improve the 64-bit sign-extended immediate from: mov r6, #1 str r6, [fp, #-52] ; 0xffffffcc mov r6, #0 str r6, [fp, #-48] ; 0xffffffd0 to: mov r6, #1 mov r7, #0 strd r6, [fp, #-52] ; 0xffffffcc Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13ARM: net: bpf: improve 64-bit load immediate implementationRussell King1-12/+20
Rather than writing each 32-bit half of the 64-bit immediate value separately when the register is on the stack: movw r6, #45056 ; 0xb000 movt r6, #60979 ; 0xee33 str r6, [fp, #-44] ; 0xffffffd4 mov r6, #0 str r6, [fp, #-40] ; 0xffffffd8 arrange to use the double-word store when available instead: movw r6, #45056 ; 0xb000 movt r6, #60979 ; 0xee33 mov r7, #0 strd r6, [fp, #-44] ; 0xffffffd4 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: use double-word load/stores where availableRussell King2-12/+45
Use double-word load and stores where support for this instruction is supported by the CPU architecture. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: always use odd/even register pairRussell King1-14/+14
Always use an odd/even register pair for our 64-bit registers, so that we're able to use the double-word load/store instructions in the future. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: avoid reloading 'array'Russell King1-5/+4
Rearranging the order of the initial tail call code a little allows is to avoid reloading the 'array' pointer. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: avoid reloading 'index'Russell King1-2/+3
Avoid reloading 'index' after we have validated it - it remains in tmp2[1] up to the point that we begin the code to index the pointer array, so with a little rearrangement of the registers, we can use the already loaded value. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: use ldr instructions with shifted rm registerRussell King2-2/+5
Rather than pre-shifting the rm register for the ldr in the tail call, shift it in the load instruction. This eliminates one unnecessary instruction. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: use immediate forms of instructions where possibleRussell King2-9/+13
Rather than moving constants to a register and then using them in a subsequent instruction, use them directly in the desired instruction cutting out the "middle" register. This removes two instructions from the tail call code path. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: imm12 constant conversionRussell King1-1/+49
Provide a version of the imm8m() function that the compiler can optimise when used with a constant expression. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: access eBPF scratch space using ARM FP registerRussell King1-19/+25
Access the eBPF scratch space using the frame pointer rather than our stack pointer, as the offsets from the ARM frame pointer are constant across all eBPF programs. Since we no longer reference the scratch space registers from the stack pointer, this simplifies emit_push_r64() as it no longer needs to know how many words are pushed onto the stack. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: 64-bit accessor functions for BPF registersRussell King1-113/+122
Provide a couple of 64-bit register accessors, and use them where appropriate Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: provide accessor functions for BPF registersRussell King1-201/+128
Many of the code paths need to have knowledge about whether a register is stacked or in a CPU register. Move this decision making to a pair of helper functions instead of having it scattered throughout the code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: remove is_on_stack() and sstk/dstkRussell King1-176/+160
The decision about whether a BPF register is on the stack or in a CPU register is detected at the top BPF insn processing level, and then percolated throughout the remainder of the code. Since we now use negative register values to represent stacked registers, we can detect where a BPF register is stored without restoring to carrying this additional metadata through all code paths. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: use negative numbers for stacked registersRussell King1-98/+102
Use negative numbers for eBPF registers that live on the stack. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: provide load/store ops with negative immediatesRussell King2-22/+41
Provide a set of load/store opcode generators that work with negative immediates as well as positive ones. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-12ARM: net: bpf: enumerate the JIT scratch stack layoutRussell King1-17/+42
Enumerate the contents of the JIT scratch stack layout used for storing some of the JITs 64-bit registers, tail call counter and AX register. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-04net: Add a new socket option for a future transmit time.Richard Cochran7-0/+21
This patch introduces SO_TXTIME. User space enables this option in order to pass a desired future transmit time in a CMSG when calling sendmsg(2). The argument to this socket option is a 8-bytes long struct provided by the uapi header net_tstamp.h defined as: struct sock_txtime { clockid_t clockid; u32 flags; }; Note that new fields were added to struct sock by filling a 2-bytes hole found in the struct. For that reason, neither the struct size or number of cachelines were altered. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-03Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller85-646/+471
Simple overlapping changes in stmmac driver. Adjust skb_gro_flush_final_remcsum function signature to make GRO list changes in net-next, as per Stephen Rothwell's example merge resolution. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02Merge tag 'for-linus' of git://github.com/stffrdhrn/linuxLinus Torvalds4-12/+13
Pull OpenRISC fixes from Stafford Horne: "Two fixes for issues which were breaking OpenRISC boot: - Fix bug in __pte_free_tlb() exposed in 4.18 by Matthew Wilcox's page table flag addition. - Fix issue booting on real hardware if delay slot detection emulation is disabled" * tag 'for-linus' of git://github.com/stffrdhrn/linux: openrisc: entry: Fix delay slot exception detection openrisc: Call destructor during __pte_free_tlb
2018-07-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2-1/+2
Pull networking fixes from David Miller: 1) Verify netlink attributes properly in nf_queue, from Eric Dumazet. 2) Need to bump memory lock rlimit for test_sockmap bpf test, from Yonghong Song. 3) Fix VLAN handling in lan78xx driver, from Dave Stevenson. 4) Fix uninitialized read in nf_log, from Jann Horn. 5) Fix raw command length parsing in mlx5, from Alex Vesker. 6) Cleanup loopback RDS connections upon netns deletion, from Sowmini Varadhan. 7) Fix regressions in FIB rule matching during create, from Jason A. Donenfeld and Roopa Prabhu. 8) Fix mpls ether type detection in nfp, from Pieter Jansen van Vuuren. 9) More bpfilter build fixes/adjustments from Masahiro Yamada. 10) Fix XDP_{TX,REDIRECT} flushing in various drivers, from Jesper Dangaard Brouer. 11) fib_tests.sh file permissions were broken, from Shuah Khan. 12) Make sure BH/preemption is disabled in data path of mac80211, from Denis Kenzior. 13) Don't ignore nla_parse_nested() return values in nl80211, from Johannes berg. 14) Properly account sock objects ot kmemcg, from Shakeel Butt. 15) Adjustments to setting bpf program permissions to read-only, from Daniel Borkmann. 16) TCP Fast Open key endianness was broken, it always took on the host endiannness. Whoops. Explicitly make it little endian. From Yuching Cheng. 17) Fix prefix route setting for link local addresses in ipv6, from David Ahern. 18) Potential Spectre v1 in zatm driver, from Gustavo A. R. Silva. 19) Various bpf sockmap fixes, from John Fastabend. 20) Use after free for GRO with ESP, from Sabrina Dubroca. 21) Passing bogus flags to crypto_alloc_shash() in ipv6 SR code, from Eric Biggers. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits) qede: Adverstise software timestamp caps when PHC is not available. qed: Fix use of incorrect size in memcpy call. qed: Fix setting of incorrect eswitch mode. qed: Limit msix vectors in kdump kernel to the minimum required count. ipvlan: call dev_change_flags when ipvlan mode is reset ipv6: sr: fix passing wrong flags to crypto_alloc_shash() net: fix use-after-free in GRO with ESP tcp: prevent bogus FRTO undos with non-SACK flows bpf: sockhash, add release routine bpf: sockhash fix omitted bucket lock in sock_close bpf: sockmap, fix smap_list_map_remove when psock is in many maps bpf: sockmap, fix crash when ipv6 sock is added net: fib_rules: bring back rule_exists to match rule during add hv_netvsc: split sub-channel setup into async and sync net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN atm: zatm: Fix potential Spectre v1 s390/qeth: consistently re-enable device features s390/qeth: don't clobber buffer on async TX completion s390/qeth: avoid using is_multicast_ether_addr_64bits on (u8 *)[6] s390/qeth: fix race when setting MAC address ...
2018-07-01openrisc: entry: Fix delay slot exception detectionStafford Horne3-11/+8
Originally in patch e6d20c55a4 ("openrisc: entry: Fix delay slot detection") I fixed delay slot detection, but only for QEMU. We missed that hardware delay slot detection using delay slot exception flag (DSX) was still broken. This was because QEMU set the DSX flag in both pre-exception supervision register (ESR) and supervision register (SR) register, but on real hardware the DSX flag is only set on the SR register during exceptions. Fix this by carrying the DSX flag into the SR register during exception. We also update the DSX flag read locations to read the value from the SR register not the pt_regs SR register which represents ESR. The ESR should never have the DSX flag set. In the process I updated/removed a few comments to match the current state. Including removing a comment saying that the DSX detection logic was inefficient and needed to be rewritten. I have tested this on QEMU with a patch ensuring it matches the hardware specification. Link: https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg00000.html Fixes: e6d20c55a4 ("openrisc: entry: Fix delay slot detection") Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-07-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller2-1/+2
Daniel Borkmann says: ==================== pull-request: bpf 2018-07-01 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) A bpf_fib_lookup() helper fix to change the API before freeze to return an encoding of the FIB lookup result and return the nexthop device index in the params struct (instead of device index as return code that we had before), from David. 2) Various BPF JIT fixes to address syzkaller fallout, that is, do not reject progs when set_memory_*() fails since it could still be RO. Also arm32 JIT was not using bpf_jit_binary_lock_ro() API which was an issue, and a memory leak in s390 JIT found during review, from Daniel. 3) Multiple fixes for sockmap/hash to address most of the syzkaller triggered bugs. Usage with IPv6 was crashing, a GPF in bpf_tcp_close(), a missing sock_map_release() routine to hook up to callbacks, and a fix for an omitted bucket lock in sock_close(), from John. 4) Two bpftool fixes to remove duplicated error message on program load, and another one to close the libbpf object after program load. One additional fix for nfp driver's BPF offload to avoid stopping offload completely if replace of program failed, from Jakub. 5) Couple of BPF selftest fixes that bail out in some of the test scripts if the user does not have the right privileges, from Jeffrin. 6) Fixes in test_bpf for s390 when CONFIG_BPF_JIT_ALWAYS_ON is set where we need to set the flag that some of the test cases are expected to fail, from Kleber. 7) Fix to detangle BPF_LIRC_MODE2 dependency from CONFIG_CGROUP_BPF since it has no relation to it and lirc2 users often have configs without cgroups enabled and thus would not be able to use it, from Sean. 8) Fix a selftest failure in sockmap by removing a useless setrlimit() call that would set a too low limit where at the same time we are already including bpf_rlimit.h that does the job, from Yonghong. 9) Fix BPF selftest config with missing missing NET_SCHED, from Anders. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-01Merge branch 'parisc-4.18-1' of ↵Linus Torvalds7-34/+17
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes and cleanups from Helge Deller: "Nothing exiting in this patchset, just - small cleanups of header files - default to 4 CPUs when building a SMP kernel - mark 16kB and 64kB page sizes broken - addition of the new io_pgetevents syscall" * 'parisc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Build kernel without -ffunction-sections parisc: Reduce debug output in unwind code parisc: Wire up io_pgetevents syscall parisc: Default to 4 SMP CPUs parisc: Convert printk(KERN_LEVEL) to pr_lvl() parisc: Mark 16kB and 64kB page sizes BROKEN parisc: Drop struct sigaction from not exported header file
2018-07-01Merge tag 'armsoc-fixes' of ↵Linus Torvalds11-24/+39
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A smaller batch for the end of the week (let's see if I can keep the weekly cadence going for once). All medium-grade fixes here, nothing worrisome: - Fixes for some fairly old bugs around SD card write-protect detection and GPIO interrupt assignments on Davinci. - Wifi module suspend fix for Hikey. - Minor DT tweaks to fix inaccuracies for Amlogic platforms, one of which solves booting with third-party u-boot" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: hikey960: Define wl1837 power capabilities arm64: dts: hikey: Define wl1835 power capabilities ARM64: dts: meson-gxl: fix Mali GPU compatible string ARM64: dts: meson-axg: fix ethernet stability issue ARM64: dts: meson-gx: fix ATF reserved memory region ARM64: dts: meson-gxl-s905x-p212: Add phy-supply for usb0 ARM64: dts: meson: fix register ranges for SD/eMMC ARM64: dts: meson: disable sd-uhs modes on the libretech-cc ARM: dts: da850: Fix interrups property for gpio ARM: davinci: board-da850-evm: fix WP pin polarity for MMC/SD
2018-06-30Merge tag 'kbuild-fixes-v4.18' of ↵Linus Torvalds7-32/+0
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - introduce __diag_* macros and suppress -Wattribute-alias warnings from GCC 8 - fix stack protector test script for x86_64 - fix line number handling in Kconfig - document that '#' starts a comment in Kconfig - handle P_SYMBOL property in dump debugging of Kconfig - correct help message of LD_DEAD_CODE_DATA_ELIMINATION - fix occasional segmentation faults in Kconfig * tag 'kbuild-fixes-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: loop boundary condition fix kbuild: reword help of LD_DEAD_CODE_DATA_ELIMINATION kconfig: handle P_SYMBOL in print_symbol() kconfig: document Kconfig source file comments kconfig: fix line numbers for if-entries in menu tree stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y powerpc: Remove -Wattribute-alias pragmas disable -Wattribute-alias warning for SYSCALL_DEFINEx() kbuild: add macro for controlling warnings to linux/compiler.h
2018-06-30Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds7-28/+24
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "The biggest diffstat comes from self-test updates, plus there's entry code fixes, 5-level paging related fixes, console debug output fixes, and misc fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Clean up the printk()s in show_fault_oops() x86/mm: Drop unneeded __always_inline for p4d page table helpers x86/efi: Fix efi_call_phys_epilog() with CONFIG_X86_5LEVEL=y selftests/x86/sigreturn: Do minor cleanups selftests/x86/sigreturn/64: Fix spurious failures on AMD CPUs x86/entry/64/compat: Fix "x86/entry/64/compat: Preserve r8-r11 in int $0x80" x86/mm: Don't free P4D table when it is folded at runtime x86/entry/32: Add explicit 'l' instruction suffix x86/mm: Get rid of KERN_CONT in show_fault_oops()
2018-06-30Merge tag 'powerpc-4.18-3' of ↵Linus Torvalds6-12/+23
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Two regression fixes, and a new syscall wire-up: - A fix for the recent conversion to time64_t in the powermac RTC routines, which caused time to go backward. - Another fix for fallout from the split PMD PTL conversion. - Wire up the new io_pgetevents() syscall. Thanks to: Aneesh Kumar K.V, Arnd Bergmann, Breno Leitao, Mathieu Malaterre" * tag 'powerpc-4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powermac: Fix rtc read/write functions powerpc/mm/32: Fix pgtable_page_dtor call powerpc: Wire up io_pgetevents
2018-06-30Merge tag 'davinci-fixes-for-v4.18' of ↵Olof Johansson2-6/+2
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes This fixes polarity of SD card write-protect pin on DA850 EVM and fixes interrupt property for DA850 SoC GPIO as defined in device-tree. Both of these are not introduced with v4.18 merge but have existed prior. * tag 'davinci-fixes-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: dts: da850: Fix interrups property for gpio ARM: davinci: board-da850-evm: fix WP pin polarity for MMC/SD Signed-off-by: Olof Johansson <olof@lixom.net>
2018-06-30Merge tag 'hisi-fixes-for-4.18' of git://github.com/hisilicon/linux-hisi ↵Olof Johansson2-0/+4
into fixes ARM64: hisi fixes for 4.18 - Added power capabilities for the mmc host controller on the hikey and hikey960 boards to avoid broken wifi. * tag 'hisi-fixes-for-4.18' of git://github.com/hisilicon/linux-hisi: arm64: dts: hikey960: Define wl1837 power capabilities arm64: dts: hikey: Define wl1835 power capabilities Signed-off-by: Olof Johansson <olof@lixom.net>
2018-06-30Merge tag 'amlogic-fixes' of ↵Olof Johansson7-18/+33
https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into fixes Amlogic fixes for v4.18-rc - minor 64-bit DT fixes * tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: ARM64: dts: meson-gxl: fix Mali GPU compatible string ARM64: dts: meson-axg: fix ethernet stability issue ARM64: dts: meson-gx: fix ATF reserved memory region ARM64: dts: meson-gxl-s905x-p212: Add phy-supply for usb0 ARM64: dts: meson: fix register ranges for SD/eMMC ARM64: dts: meson: disable sd-uhs modes on the libretech-cc Signed-off-by: Olof Johansson <olof@lixom.net>
2018-06-29Merge tag 'arm64-fixes' of ↵Linus Torvalds4-16/+53
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - The alternatives patching code uses flush_icache_range() which itself uses alternatives. Change the code to use an unpatched variant of cache maintenance - Remove unnecessary ISBs from set_{pte,pmd,pud} - perf: xgene_pmu: Fix IOB SLOW PMU parser error * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Remove unnecessary ISBs from set_{pte,pmd,pud} arm64: Avoid flush_icache_range() in alternatives patching code drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error
2018-06-29bpf, s390: fix potential memleak when later bpf_jit_prog failsDaniel Borkmann1-0/+1
If we would ever fail in the bpf_jit_prog() pass that writes the actual insns to the image after we got header via bpf_jit_binary_alloc() then we also need to make sure to free it through bpf_jit_binary_free() again when bailing out. Given we had prior bpf_jit_prog() passes to initially probe for clobbered registers, program size and to fill in addrs arrray for jump targets, this is more of a theoretical one, but at least make sure this doesn't break with future changes. Fixes: 054623105728 ("s390/bpf: Add s390x eBPF JIT compiler backend") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-06-29bpf, arm32: fix to use bpf_jit_binary_lock_ro apiDaniel Borkmann1-1/+1
Any eBPF JIT that where its underlying arch supports ARCH_HAS_SET_MEMORY would need to use bpf_jit_binary_{un,}lock_ro() pair instead of the set_memory_{ro,rw}() pair directly as otherwise changes to the former might break. arm32's eBPF conversion missed to change it, so fix this up here. Fixes: 39c13c204bb1 ("arm: eBPF JIT compiler") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-06-29parisc: Build kernel without -ffunction-sectionsHelge Deller1-4/+0
As suggested by Nick Piggin it seems we can drop the -ffunction-sections compile flag, now that the kernel uses thin archives. Testing with 32- and 64-bit kernel showed no difference in kernel size. Suggested-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-29Merge tag 'pci-v4.18-fixes-1' of ↵Linus Torvalds3-1/+9
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Fix crash caused by endpoint library initialization order change (Alan Douglas) - Fix shpchp NULL pointer dereference regression on non-ACPI platforms (Bjorn Helgaas) - Move PCI_DOMAINS selection to fix build regression (Lorenzo Pieralisi) * tag 'pci-v4.18-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: controller: Move PCI_DOMAINS selection to arch Kconfig PCI: Initialize endpoint library before controllers PCI: shpchp: Manage SHPC unconditionally on non-ACPI systems
2018-06-28parisc: Reduce debug output in unwind codeHelge Deller1-2/+2
Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28x86/e820: put !E820_TYPE_RAM regions into memblock.reservedNaoya Horiguchi1-3/+12
There is a kernel panic that is triggered when reading /proc/kpageflags on the kernel booted with kernel parameter 'memmap=nn[KMG]!ss[KMG]': BUG: unable to handle kernel paging request at fffffffffffffffe PGD 9b20e067 P4D 9b20e067 PUD 9b210067 PMD 0 Oops: 0000 [#1] SMP PTI CPU: 2 PID: 1728 Comm: page-types Not tainted 4.17.0-rc6-mm1-v4.17-rc6-180605-0816-00236-g2dfb086ef02c+ #160 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.fc28 04/01/2014 RIP: 0010:stable_page_flags+0x27/0x3c0 Code: 00 00 00 0f 1f 44 00 00 48 85 ff 0f 84 a0 03 00 00 41 54 55 49 89 fc 53 48 8b 57 08 48 8b 2f 48 8d 42 ff 83 e2 01 48 0f 44 c7 <48> 8b 00 f6 c4 01 0f 84 10 03 00 00 31 db 49 8b 54 24 08 4c 89 e7 RSP: 0018:ffffbbd44111fde0 EFLAGS: 00010202 RAX: fffffffffffffffe RBX: 00007fffffffeff9 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000202 RDI: ffffed1182fff5c0 RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000000000000001 R10: ffffbbd44111fed8 R11: 0000000000000000 R12: ffffed1182fff5c0 R13: 00000000000bffd7 R14: 0000000002fff5c0 R15: ffffbbd44111ff10 FS: 00007efc4335a500(0000) GS:ffff93a5bfc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffe CR3: 00000000b2a58000 CR4: 00000000001406e0 Call Trace: kpageflags_read+0xc7/0x120 proc_reg_read+0x3c/0x60 __vfs_read+0x36/0x170 vfs_read+0x89/0x130 ksys_pread64+0x71/0x90 do_syscall_64+0x5b/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7efc42e75e23 Code: 09 00 ba 9f 01 00 00 e8 ab 81 f4 ff 66 2e 0f 1f 84 00 00 00 00 00 90 83 3d 29 0a 2d 00 00 75 13 49 89 ca b8 11 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 db d3 01 00 48 89 04 24 According to kernel bisection, this problem became visible due to commit f7f99100d8d9 ("mm: stop zeroing memory during allocation in vmemmap") which changes how struct pages are initialized. Memblock layout affects the pfn ranges covered by node/zone. Consider that we have a VM with 2 NUMA nodes and each node has 4GB memory, and the default (no memmap= given) memblock layout is like below: MEMBLOCK configuration: memory size = 0x00000001fff75c00 reserved size = 0x000000000300c000 memory.cnt = 0x4 memory[0x0] [0x0000000000001000-0x000000000009efff], 0x000000000009e000 bytes on node 0 flags: 0x0 memory[0x1] [0x0000000000100000-0x00000000bffd6fff], 0x00000000bfed7000 bytes on node 0 flags: 0x0 memory[0x2] [0x0000000100000000-0x000000013fffffff], 0x0000000040000000 bytes on node 0 flags: 0x0 memory[0x3] [0x0000000140000000-0x000000023fffffff], 0x0000000100000000 bytes on node 1 flags: 0x0 ... If you give memmap=1G!4G (so it just covers memory[0x2]), the range [0x100000000-0x13fffffff] is gone: MEMBLOCK configuration: memory size = 0x00000001bff75c00 reserved size = 0x000000000300c000 memory.cnt = 0x3 memory[0x0] [0x0000000000001000-0x000000000009efff], 0x000000000009e000 bytes on node 0 flags: 0x0 memory[0x1] [0x0000000000100000-0x00000000bffd6fff], 0x00000000bfed7000 bytes on node 0 flags: 0x0 memory[0x2] [0x0000000140000000-0x000000023fffffff], 0x0000000100000000 bytes on node 1 flags: 0x0 ... This causes shrinking node 0's pfn range because it is calculated by the address range of memblock.memory. So some of struct pages in the gap range are left uninitialized. We have a function zero_resv_unavail() which does zeroing the struct pages within the reserved unavailable range (i.e. memblock.memory && !memblock.reserved). This patch utilizes it to cover all unavailable ranges by putting them into memblock.reserved. Link: http://lkml.kernel.org/r/20180615072947.GB23273@hori1.linux.bs1.fc.nec.co.jp Fixes: f7f99100d8d9 ("mm: stop zeroing memory during allocation in vmemmap") Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Tested-by: Oscar Salvador <osalvador@suse.de> Tested-by: "Herton R. Krzesinski" <herton@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-28arm64: dts: hikey960: Define wl1837 power capabilitiesoscardagrach1-0/+2
These properties are required for compatibility with runtime PM. Without these properties, MMC host controller will not be aware of power capabilities. When the wlcore driver attempts to power on the device, it will erroneously fail with -EACCES. This fixes a regression found here: https://lkml.org/lkml/2018/6/12/930 Fixes: 60f36637bbbd ("wlcore: sdio: allow pm to handle sdio power") Signed-off-by: Ryan Grachek <ryan@edited.us> Tested-by: John Stultz <john.stultz@linaro.org> Acked-by: John Stultz <john.stultz@linaro.org> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2018-06-28arm64: dts: hikey: Define wl1835 power capabilitiesoscardagrach1-0/+2
These properties are required for compatibility with runtime PM. Without these properties, MMC host controller will not be aware of power capabilities. When the wlcore driver attempts to power on the device, it will erroneously fail with -EACCES. Fixes: 60f36637bbbd ("wlcore: sdio: allow pm to handle sdio power") Signed-off-by: Ryan Grachek <ryan@edited.us> Tested-by: John Stultz <john.stultz@linaro.org> Acked-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2018-06-28parisc: Wire up io_pgetevents syscallHelge Deller2-1/+3
Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28parisc: Default to 4 SMP CPUsHelge Deller1-1/+1
I haven't seen any real SMP machine yet with > 4 CPUs (we don't suport SuperDomes yet), so reducing the default maximum number of CPUs may speed up various bitop functions which depend on number of CPUs in the system. bload-o-meter on a typical 64-bit kernel shows: Data: add/remove: 0/0 grow/shrink: 0/10 up/down: 0/-3724 (-3724) Total: Before=1910404, After=1906680, chg -0.19% Code: add/remove: 0/2 grow/shrink: 42/38 up/down: 2320/-3500 (-1180) Total: Before=11053099, After=11051919, chg -0.01% Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28parisc: Convert printk(KERN_LEVEL) to pr_lvl()Andy Shevchenko1-16/+9
Convert printk(KERN_LEVEL) type of calls to pr_lvl() macros. While here, - convert printk() to pr_info() - join back string literal to be on one line - use %*phN (note, it gives 1 byte more for sake of simplicity) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28parisc: Mark 16kB and 64kB page sizes BROKENHelge Deller1-2/+2
A full boot only succeeds with 4kB page sizes currently. For 16kB and 64kB page size support somone needs to fix the LBA PCI code at least, so mark those broken for now. Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28parisc: Drop struct sigaction from not exported header fileHelge Deller1-8/+0
This header file isn't exported to userspace, so there is no benefit in defining struct sigaction for userspace here. Signed-off-by: Helge Deller <deller@gmx.de>
2018-06-28ARM64: dts: meson-gxl: fix Mali GPU compatible stringMartin Blumenstingl1-1/+1
meson-gxl-mali.dtsi is only used on GXL SoCs. Thus it should use the GXL specific compatible string instead of the GXBB one. For now this is purely cosmetic since the (out-of-tree) lima driver for this GPU currently uses the "arm,mali-450" match instead of the SoC specific one. However, update the .dts to match the documentation since this driver behavior might change in the future. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-28ARM64: dts: meson-axg: fix ethernet stability issueJerome Brunet1-1/+14
Like the odroid-c2 and wetek, the s400 uses the RTL8211F and seems to suffer from the kind of stability issue. Doing an iperf3 download test, we can see a significant number of LPI interrupts on the tx path. After a short while (5 to 15 seconds), the network connection dies. If using rootfs over NFS, the connection may also break during the boot sequence. We still don't have a real explanation for this problem so let's disable EEE once again. Fixes: f6f6ac914b82 ("ARM64: dts: meson-axg: enable ethernet for A113D S400 board") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-28ARM64: dts: meson-gx: fix ATF reserved memory regionKevin Hilman2-8/+6
Vendor firmware/uboot has different reserved regions depending on firmware version, but current codebase reserves the same regions on GXL and GXBB, so move the additional reserved memory region to common .dtsi. Found when putting a recent vendor u-boot on meson-gxbb-p200. Suggested-by: Neil Armstrong <narmstrong@baylibre.com> Cc: stable@vger.kernel.org Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-28ARM64: dts: meson-gxl-s905x-p212: Add phy-supply for usb0Neil Armstrong1-0/+7
Like LibreTech-CC, the USB0 needs the 5V regulator to be enabled to power the devices on the P212 Reference Design based boards. Fixes: b9f07cb4f41f ("ARM64: dts: meson-gxl-s905x-p212: enable the USB controller") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-25 23:48:50 +0300