1f2d9ffc7a
Pull scheduler updates from Ingo Molnar: - Improve the scalability of the CFS bandwidth unthrottling logic with large number of CPUs. - Fix & rework various cpuidle routines, simplify interaction with the generic scheduler code. Add __cpuidle methods as noinstr to objtool's noinstr detection and fix boatloads of cpuidle bugs & quirks. - Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS, to query previously issued registrations. - Limit scheduler slice duration to the sysctl_sched_latency period, to improve scheduling granularity with a large number of SCHED_IDLE tasks. - Debuggability enhancement on sys_exit(): warn about disabled IRQs, but also enable them to prevent a cascade of followup problems and repeat warnings. - Fix the rescheduling logic in prio_changed_dl(). - Micro-optimize cpufreq and sched-util methods. - Micro-optimize ttwu_runnable() - Micro-optimize the idle-scanning in update_numa_stats(), select_idle_capacity() and steal_cookie_task(). - Update the RSEQ code & self-tests - Constify various scheduler methods - Remove unused methods - Refine __init tags - Documentation updates - Misc other cleanups, fixes * tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (110 commits) sched/rt: pick_next_rt_entity(): check list_entry sched/deadline: Add more reschedule cases to prio_changed_dl() sched/fair: sanitize vruntime of entity being placed sched/fair: Remove capacity inversion detection sched/fair: unlink misfit task from cpu overutilized objtool: mem*() are not uaccess safe cpuidle: Fix poll_idle() noinstr annotation sched/clock: Make local_clock() noinstr sched/clock/x86: Mark sched_clock() noinstr x86/pvclock: Improve atomic update of last_value in pvclock_clocksource_read() x86/atomics: Always inline arch_atomic64*() cpuidle: tracing, preempt: Squash _rcuidle tracing cpuidle: tracing: Warn about !rcu_is_watching() cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG cpuidle: drivers: firmware: psci: Dont instrument suspend code KVM: selftests: Fix build of rseq test exit: Detect and fix irq disabled state in oops cpuidle, arm64: Fix the ARM64 cpuidle logic cpuidle: mvebu: Fix duplicate flags assignment sched/fair: Limit sched slice duration ...
83 lines
1.5 KiB
ArmAsm
83 lines
1.5 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* ld script to make SuperH Linux kernel
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* Written by Niibe Yutaka and Paul Mundt
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*/
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OUTPUT_ARCH(sh)
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#define RUNTIME_DISCARD_EXIT
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#include <asm/thread_info.h>
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#include <asm/cache.h>
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#include <asm/vmlinux.lds.h>
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#ifdef CONFIG_PMB
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#define MEMORY_OFFSET 0
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#else
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#define MEMORY_OFFSET __MEMORY_START
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#endif
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ENTRY(_start)
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SECTIONS
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{
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. = PAGE_OFFSET + MEMORY_OFFSET + PHYSICAL_OFFSET + CONFIG_ZERO_PAGE_OFFSET;
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_text = .; /* Text and read-only data */
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.empty_zero_page : AT(ADDR(.empty_zero_page)) {
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*(.empty_zero_page)
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} = 0
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.text : AT(ADDR(.text)) {
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HEAD_TEXT
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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*(.fixup)
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*(.gnu.warning)
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_etext = .; /* End of text section */
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} = 0x0009
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EXCEPTION_TABLE(16)
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_sdata = .;
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RO_DATA(PAGE_SIZE)
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RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
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_edata = .;
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DWARF_EH_FRAME
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. = ALIGN(PAGE_SIZE); /* Init code and data */
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__init_begin = .;
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INIT_TEXT_SECTION(PAGE_SIZE)
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INIT_DATA_SECTION(16)
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. = ALIGN(4);
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.machvec.init : AT(ADDR(.machvec.init)) {
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__machvec_start = .;
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*(.machvec.init)
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__machvec_end = .;
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}
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PERCPU_SECTION(L1_CACHE_BYTES)
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/*
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* .exit.text is discarded at runtime, not link time, to deal with
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* references from __bug_table
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*/
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.exit.text : AT(ADDR(.exit.text)) { EXIT_TEXT }
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.exit.data : AT(ADDR(.exit.data)) { EXIT_DATA }
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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BSS_SECTION(0, PAGE_SIZE, 4)
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_end = . ;
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STABS_DEBUG
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DWARF_DEBUG
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ELF_DETAILS
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DISCARDS
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}
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