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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 03:24:30 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 03:24:30 +0300
commit0ca2ce81eb8ee30f3ba8ac7967fef9cfbb44dbdb (patch)
tree1c47e68f6ece1f7a752d2035c2ba169ddc601c22 /arch/sparc
parent586592478b1fa8bb8cd6875a9191468e9b1a8b13 (diff)
parentd889797530c66f699170233474eab3361471e808 (diff)
downloadlinux-0ca2ce81eb8ee30f3ba8ac7967fef9cfbb44dbdb.tar.xz
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas: - Expose tag address bits in siginfo. The original arm64 ABI did not expose any of the bits 63:56 of a tagged address in siginfo. In the presence of user ASAN or MTE, this information may be useful. The implementation is generic to other architectures supporting tags (like SPARC ADI, subject to wiring up the arch code). The user will have to opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra bits, if available, become visible in si_addr. - Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the lowest 1GB to cope with the Raspberry Pi 4 limitations, to the detriment of other platforms. With these changes, the kernel scans the Device Tree dma-ranges and the ACPI IORT information before deciding on a smaller ZONE_DMA. - Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building with LTO, there is an increased risk of the compiler converting an address dependency headed by a READ_ONCE() invocation into a control dependency and consequently allowing for harmful reordering by the CPU. - Add CPPC FFH support using arm64 AMU counters. - set_fs() removal on arm64. This renders the User Access Override (UAO) ARMv8 feature unnecessary. - Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs identifier file for SMMUv3, stop event counters support for i.MX8MP, enable the perf events-based hard lockup detector. - Reorganise the kernel VA space slightly so that 52-bit VA configurations can use more virtual address space. - Improve the robustness of the arm64 memory offline event notifier. - Pad the Image header to 64K following the EFI header definition updated recently to increase the section alignment to 64K. - Support CONFIG_CMDLINE_EXTEND on arm64. - Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8 bits for PtrAuth. - Switch to vmapped shadow call stacks. - Miscellaneous clean-ups. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (78 commits) perf/imx_ddr: Add system PMU identifier for userspace bindings: perf: imx-ddr: add compatible string arm64: Fix build failure when HARDLOCKUP_DETECTOR_PERF is enabled arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE arm64: mark __system_matches_cap as __maybe_unused arm64: uaccess: remove vestigal UAO support arm64: uaccess: remove redundant PAN toggling arm64: uaccess: remove addr_limit_user_check() arm64: uaccess: remove set_fs() arm64: uaccess cleanup macro naming arm64: uaccess: split user/kernel routines arm64: uaccess: refactor __{get,put}_user arm64: uaccess: simplify __copy_user_flushcache() arm64: uaccess: rename privileged uaccess routines arm64: sdei: explicitly simulate PAN/UAO entry arm64: sdei: move uaccess logic to arch/arm64/ arm64: head.S: always initialize PSTATE arm64: head.S: cleanup SCTLR_ELx initialization arm64: head.S: rename el2_setup -> init_kernel_el arm64: add C wrappers for SET_PSTATE_*() ...
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/uapi/asm/signal.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h
index ff9505923b9a..53758d53ac0e 100644
--- a/arch/sparc/include/uapi/asm/signal.h
+++ b/arch/sparc/include/uapi/asm/signal.h
@@ -137,13 +137,11 @@ struct sigstack {
#define SA_STACK _SV_SSTACK
#define SA_ONSTACK _SV_SSTACK
#define SA_RESTART _SV_INTR
-#define SA_ONESHOT _SV_RESET
+#define SA_RESETHAND _SV_RESET
#define SA_NODEFER 0x20u
#define SA_NOCLDWAIT 0x100u
#define SA_SIGINFO 0x200u
-#define SA_NOMASK SA_NODEFER
-
#define SIG_BLOCK 0x01 /* for blocking signals */
#define SIG_UNBLOCK 0x02 /* for unblocking signals */
#define SIG_SETMASK 0x04 /* for setting the signal mask */