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Sun, 16 Apr 2023 23:57:22 +0000 Date: Mon, 17 Apr 2023 07:57:04 +0800 From: kernel test robot To: "Borislav Petkov (AMD)" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled Message-ID: <202304170748.Fg9VIgGd-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6a8f57ae2eb07ab39a6f0ccad60c760743051026 commit: aba5b397cad7d398b385aaf5029f99f41b690466 hamradio: baycom_epp: Do not use x86-specific rdtsc() date: 4 months ago config: mips-buildonly-randconfig-r001-20230417 (https://download.01.org/0day-ci/archive/20230417/202304170748.Fg9VIgGd-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mipsel-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aba5b397cad7d398b385aaf5029f99f41b690466 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout aba5b397cad7d398b385aaf5029f99f41b690466 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/net/hamradio/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304170748.Fg9VIgGd-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/net/hamradio/baycom_epp.c:29: In file included from include/linux/module.h:13: In file included from include/linux/stat.h:19: In file included from include/linux/time.h:60: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:67: >> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled return read_c0_count(); ^ arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count' #define read_c0_count() __read_32bit_c0_register($9, 0) ^ arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register' ___read_32bit_c0_register(source, sel, __volatile__) ^ arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register' "mfc0\t%0, " #source "\n\t" \ ^ :1:2: note: instantiated into assembly here mfc0 $4, $9 ^ In file included from drivers/net/hamradio/baycom_epp.c:29: In file included from include/linux/module.h:13: In file included from include/linux/stat.h:19: In file included from include/linux/time.h:60: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:67: >> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled return read_c0_count(); ^ arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count' #define read_c0_count() __read_32bit_c0_register($9, 0) ^ arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register' ___read_32bit_c0_register(source, sel, __volatile__) ^ arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register' "mfc0\t%0, " #source "\n\t" \ ^ :1:2: note: instantiated into assembly here mfc0 $2, $9 ^ In file included from drivers/net/hamradio/baycom_epp.c:29: In file included from include/linux/module.h:13: In file included from include/linux/stat.h:19: In file included from include/linux/time.h:60: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:67: >> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled return read_c0_count(); ^ arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count' #define read_c0_count() __read_32bit_c0_register($9, 0) ^ arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register' ___read_32bit_c0_register(source, sel, __volatile__) ^ arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register' "mfc0\t%0, " #source "\n\t" \ ^ :1:2: note: instantiated into assembly here mfc0 $2, $9 ^ In file included from drivers/net/hamradio/baycom_epp.c:29: In file included from include/linux/module.h:13: In file included from include/linux/stat.h:19: In file included from include/linux/time.h:60: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:67: >> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled return read_c0_count(); ^ arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count' #define read_c0_count() __read_32bit_c0_register($9, 0) ^ arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register' ___read_32bit_c0_register(source, sel, __volatile__) ^ arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register' "mfc0\t%0, " #source "\n\t" \ ^ :1:2: note: instantiated into assembly here mfc0 $2, $9 ^ 4 errors generated. vim +75 arch/mips/include/asm/timex.h 9c9b415c50bc29 Ralf Baechle 2013-09-12 71 06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 72 static inline cycles_t get_cycles(void) 06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 73 { 06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 74 if (can_use_mips_counter(read_c0_prid())) 9c9b415c50bc29 Ralf Baechle 2013-09-12 @75 return read_c0_count(); 06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 76 else 06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 77 return 0; /* no usable counter */ 9c9b415c50bc29 Ralf Baechle 2013-09-12 78 } 1c99c6a7c3c599 Jason A. Donenfeld 2022-04-08 79 #define get_cycles get_cycles 9c9b415c50bc29 Ralf Baechle 2013-09-12 80 :::::: The code at line 75 was first introduced by commit :::::: 9c9b415c50bc298ac61412dff856eae2f54889ee MIPS: Reimplement get_cycles(). :::::: TO: Ralf Baechle :::::: CC: Ralf Baechle -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests