mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-12-27 12:21:22 -05:00
6fb44438a5
Pull arm64 updates from Catalin Marinas:
"A quick summary: perf support for Branch Record Buffer Extensions
(BRBE), typical PMU hardware updates, small additions to MTE for
store-only tag checking and exposing non-address bits to signal
handlers, HAVE_LIVEPATCH enabled on arm64, VMAP_STACK forced on.
There is also a TLBI optimisation on hardware that does not require
break-before-make when changing the user PTEs between contiguous and
non-contiguous.
More details:
Perf and PMU updates:
- Add support for new (v3) Hisilicon SLLC and DDRC PMUs
- Add support for Arm-NI PMU integrations that share interrupts
between clock domains within a given instance
- Allow SPE to be configured with a lower sample period than the
minimum recommendation advertised by PMSIDR_EL1.Interval
- Add suppport for Arm's "Branch Record Buffer Extension" (BRBE)
- Adjust the perf watchdog period according to cpu frequency changes
- Minor driver fixes and cleanups
Hardware features:
- Support for MTE store-only checking (FEAT_MTE_STORE_ONLY)
- Support for reporting the non-address bits during a synchronous MTE
tag check fault (FEAT_MTE_TAGGED_FAR)
- Optimise the TLBI when folding/unfolding contiguous PTEs on
hardware with FEAT_BBM (break-before-make) level 2 and no TLB
conflict aborts
Software features:
- Enable HAVE_LIVEPATCH after implementing arch_stack_walk_reliable()
and using the text-poke API for late module relocations
- Force VMAP_STACK always on and change arm64_efi_rt_init() to use
arch_alloc_vmap_stack() in order to avoid KASAN false positives
ACPI:
- Improve SPCR handling and messaging on systems lacking an SPCR
table
Debug:
- Simplify the debug exception entry path
- Drop redundant DBG_MDSCR_* macros
Kselftests:
- Cleanups and improvements for SME, SVE and FPSIMD tests
Miscellaneous:
- Optimise loop to reduce redundant operations in contpte_ptep_get()
- Remove ISB when resetting POR_EL0 during signal handling
- Mark the kernel as tainted on SEA and SError panic
- Remove redundant gcs_free() call"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64/gcs: task_gcs_el0_enable() should use passed task
arm64: Kconfig: Keep selects somewhat alphabetically ordered
arm64: signal: Remove ISB when resetting POR_EL0
kselftest/arm64: Handle attempts to disable SM on SME only systems
kselftest/arm64: Fix SVE write data generation for SME only systems
kselftest/arm64: Test SME on SME only systems in fp-ptrace
kselftest/arm64: Test FPSIMD format data writes via NT_ARM_SVE in fp-ptrace
kselftest/arm64: Allow sve-ptrace to run on SME only systems
arm64/mm: Drop redundant addr increment in set_huge_pte_at()
kselftest/arm4: Provide local defines for AT_HWCAP3
arm64: Mark kernel as tainted on SAE and SError panic
arm64/gcs: Don't call gcs_free() when releasing task_struct
drivers/perf: hisi: Support PMUs with no interrupt
drivers/perf: hisi: Relax the event number check of v2 PMUs
drivers/perf: hisi: Add support for HiSilicon SLLC v3 PMU driver
drivers/perf: hisi: Use ACPI driver_data to retrieve SLLC PMU information
drivers/perf: hisi: Add support for HiSilicon DDRC v3 PMU driver
drivers/perf: hisi: Simplify the probe process for each DDRC version
perf/arm-ni: Support sharing IRQs within an NI instance
perf/arm-ni: Consolidate CPU affinity handling
...
45 lines
1.6 KiB
Makefile
45 lines
1.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Copyright 2022 Google LLC
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KBUILD_CFLAGS := $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) -fpie \
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-Os -DDISABLE_BRANCH_PROFILING $(DISABLE_KSTACK_ERASE) \
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$(DISABLE_LATENT_ENTROPY_PLUGIN) \
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$(call cc-option,-mbranch-protection=none) \
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-I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \
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-include $(srctree)/include/linux/hidden.h \
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-D__DISABLE_EXPORTS -ffreestanding -D__NO_FORTIFY \
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-fno-asynchronous-unwind-tables -fno-unwind-tables \
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$(call cc-option,-fno-addrsig)
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# this code may run with the MMU off so disable unaligned accesses
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CFLAGS_map_range.o += -mstrict-align
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# remove SCS flags from all objects in this directory
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
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# disable LTO
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO), $(KBUILD_CFLAGS))
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hostprogs := relacheck
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quiet_cmd_piobjcopy = $(quiet_cmd_objcopy)
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cmd_piobjcopy = $(cmd_objcopy) && $(obj)/relacheck $(@) $(<)
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$(obj)/%.pi.o: OBJCOPYFLAGS := --prefix-symbols=__pi_ \
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--remove-section=.note.gnu.property
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$(obj)/%.pi.o: $(obj)/%.o $(obj)/relacheck FORCE
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$(call if_changed,piobjcopy)
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# ensure that all the lib- code ends up as __init code and data
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$(obj)/lib-%.pi.o: OBJCOPYFLAGS += --prefix-alloc-sections=.init
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$(obj)/lib-%.o: $(srctree)/lib/%.c FORCE
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$(call if_changed_rule,cc_o_c)
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obj-y := idreg-override.pi.o \
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map_kernel.pi.o map_range.pi.o \
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lib-fdt.pi.o lib-fdt_ro.pi.o
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obj-$(CONFIG_RELOCATABLE) += relocate.pi.o
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obj-$(CONFIG_RANDOMIZE_BASE) += kaslr_early.pi.o
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obj-$(CONFIG_UNWIND_PATCH_PAC_INTO_SCS) += patch-scs.pi.o
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targets := $(patsubst %.pi.o,%.o,$(obj-y))
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