/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2003, 2004 Ralf Baechle * Copyright (C) MIPS Technologies, Inc. * written by Ralf Baechle */ #ifndef _ASM_HAZARDS_H #define _ASM_HAZARDS_H #ifdef __ASSEMBLY__ #define ASMMACRO(name, code...) .macro name; code; .endm #else #define ASMMACRO(name, code...) \ __asm__(".macro " #name "; " #code "; .endm"); \ \ static inline void name(void) \ { \ __asm__ __volatile__ (#name); \ } #endif ASMMACRO(_ssnop, sll $0, $0, 1 ) ASMMACRO(_ehb, sll $0, $0, 3 ) /* * TLB hazards */ #if defined(CONFIG_CPU_MIPSR2) /* * MIPSR2 defines ehb for hazard avoidance */ ASMMACRO(mtc0_tlbw_hazard, _ehb ) ASMMACRO(tlbw_use_hazard, _ehb ) ASMMACRO(tlb_probe_hazard, _ehb ) ASMMACRO(irq_enable_hazard, _ehb ) ASMMACRO(irq_disable_hazard, _ehb ) ASMMACRO(back_to_back_c0_hazard, _ehb ) /* * gcc has a tradition of misscompiling the previous construct using the * address of a label as argument to inline assembler. Gas otoh has the * annoying difference between la and dla which are only usable for 32-bit * rsp. 64-bit code, so can't be used without conditional compilation. * The alterantive is switching the assembler to 64-bit code which happens * to work right even for 32-bit code ... */ #define instruction_hazard() \ do { \ unsigned long tmp; \ \ __asm__ __volatile__( \ " .set mips64r2 \n" \ " dla %0, 1f \n" \ " jr.hb %0 \n" \ " .set mips0 \n" \ "1: \n" \ : "=r" (tmp)); \ } while (0) #elif defined(CONFIG_CPU_R10000) /* * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. */ ASMMACRO(mtc0_tlbw_hazard, ) ASMMACRO(tlbw_use_hazard, ) ASMMACRO(tlb_probe_hazard, ) ASMMACRO(irq_enable_hazard, ) ASMMACRO(irq_disable_hazard, ) ASMMACRO(back_to_back_c0_hazard, ) #define instruction_hazard() do { } while (0) #elif defined(CONFIG_CPU_RM9000) /* * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent * use of the JTLB for instructions should not occur for 4 cpu cycles and use * for data translations should not occur for 3 cpu cycles. */ ASMMACRO(mtc0_tlbw_hazard, _ssnop; _ssnop; _ssnop; _ssnop ) ASMMACRO(tlbw_use_hazard, _ssnop; _ssnop; _ssnop; _ssnop ) ASMMACRO(tlb_probe_hazard, _ssnop; _ssnop; _ssnop; _ssnop ) ASMMACRO(irq_enable_hazard, ) ASMMACRO(irq_disable_hazard, ) ASMMACRO(back_to_back_c0_hazard, ) #define instruction_hazard() do { } while (0) #elif defined(CONFIG_CPU_SB1) /* * Mostly like R4000 for historic reasons */ ASMMACRO(mtc0_tlbw_hazard, ) ASMMACRO(tlbw_use_hazard, ) ASMMACRO(tlb_probe_hazard, ) ASMMACRO(irq_enable_hazard, ) ASMMACRO(irq_disable_hazard, _ssnop; _ssnop; _ssnop ) ASMMACRO(back_to_back_c0_hazard, ) #define instruction_hazard() do { } while (0) #else /* * Finally the catchall case for all other processors including R4000, R4400, * R4600, R4700, R5000, RM7000, NEC VR41xx etc. * * The taken branch will result in a two cycle penalty for the two killed * instructions on R4000 / R4400. Other processors only have a single cycle * hazard so this is nice trick to have an optimal code for a range of * processors. */ ASMMACRO(mtc0_tlbw_hazard, nop; nop ) ASMMACRO(tlbw_use_hazard, nop; nop; nop ) ASMMACRO(tlb_probe_hazard, nop; nop; nop ) ASMMACRO(irq_enable_hazard, ) ASMMACRO(irq_disable_hazard, nop; nop; nop ) ASMMACRO(back_to_back_c0_hazard, _ssnop; _ssnop; _ssnop; ) #define instruction_hazard() do { } while (0) #endif /* FPU hazards */ #if defined(CONFIG_CPU_SB1) ASMMACRO(enable_fpu_hazard, .set push; .set mips64; .set noreorder; _ssnop; bnezl $0,.+4; _ssnop; .set pop ) ASMMACRO(disable_fpu_hazard, ) #elif defined(CONFIG_CPU_MIPSR2) ASMMACRO(enable_fpu_hazard, _ehb ) ASMMACRO(disable_fpu_hazard, _ehb ) #else ASMMACRO(enable_fpu_hazard, nop; nop; nop; nop ) ASMMACRO(disable_fpu_hazard, _ehb ) #endif #endif /* _ASM_HAZARDS_H */ 19.y Hosts the 0x221E linux distro kernel.Ubuntu
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path: root/tools/perf/builtin-daemon.c
AgeCommit message (Expand)Author
2024-08-19perf daemon: Fix the build on more 32-bit architecturesArnaldo Carvalho de Melo
2024-08-16Merge remote-tracking branch 'torvalds/master' into perf-tools-nextArnaldo Carvalho de Melo
2024-08-09perf daemon: Fix the build on 32-bit architecturesArnaldo Carvalho de Melo
2024-07-31perf daemon: Convert comma to semicolonChen Ni
2024-05-10perf daemon: Fix file leak in daemon_session__controlSamasth Norway Ananda
2023-06-27perf tools: Add missing else to cmd_daemon subcommand conditionJiri Olsa
2023-05-28perf daemon: Dynamically allocate path to perfIan Rogers
2023-04-12perf daemon: Use zfree() to reduce chances of use after freeArnaldo Carvalho de Melo
2022-11-03perf daemon: Use sig_atomic_t to avoid UBIan Rogers
2022-10-27perf daemon: Complete list of supported subcommand in help messageYang Jihong
2021-10-08perf daemon: Remove duplicate sys/file.h includeGuo Zhengkui
2021-09-21perf daemon: Avoid msan warnings on send_cmdIan Rogers
2021-03-29Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo
2021-03-25perf daemon: Remove duplicate includesWan Jiabing
2021-03-24perf daemon: Return from kill functionsJiri Olsa
2021-03-24perf daemon: Force waipid for all session on SIGCHLD deliveryJiri Olsa
2021-03-06perf daemon: Fix compile error with AsanNamhyung Kim
2021-03-06perf daemon: Fix control fifo permissionsJiri Olsa
2021-02-11perf daemon: Add up time for daemon/session listJiri Olsa
2021-02-11perf daemon: Use control to stop sessionJiri Olsa
2021-02-11perf daemon: Add 'ping' commandJiri Olsa
2021-02-11perf daemon: Set control fifo for sessionJiri Olsa
2021-02-11perf daemon: Allow only one daemon over base directoryJiri Olsa
2021-02-11perf daemon: Add 'stop' commandJiri Olsa
2021-02-11perf daemon: Add 'signal' commandJiri Olsa
2021-02-11perf daemon: Add 'list' commandJiri Olsa
2021-02-11perf daemon: Add signalfd supportJiri Olsa
2021-02-11perf daemon: Add background supportJiri Olsa
2021-02-11perf daemon: Add config file change checkJiri Olsa
2021-02-11perf daemon: Add config file supportJiri Olsa
2021-02-11perf daemon: Add client socket supportJiri Olsa
2021-02-09perf daemon: Add server socket supportJiri Olsa
2021-02-09perf daemon: Add base optionJiri Olsa
2021-02-09perf daemon: Add config optionJiri Olsa
2021-02-09perf daemon: Add daemon commandJiri Olsa