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Message-ID: <202312240811.f8FX9gML-lkp@intel.com> Date: Sun, 24 Dec 2023 08:45:43 +0800 From: kernel test robot <lkp@...el.com> To: Appana Durga Kedareswara rao <appana.durga.rao@...inx.com> Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, Michal Simek <monstr@...str.eu> Subject: arch/microblaze/kernel/entry.S:945: Error: unknown opcode "suspend" Hi Appana, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3f82f1c3a03694800a4104ca6b6d3282bd4e213d commit: 88707ebe77e23e856981e597f322cabbf6415662 microblaze: Add custom break vector handler for mb manager date: 1 year, 3 months ago config: microblaze-allyesconfig (https://download.01.org/0day-ci/archive/20231224/202312240811.f8FX9gML-lkp@intel.com/config) compiler: microblaze-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231224/202312240811.f8FX9gML-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@...el.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202312240811.f8FX9gML-lkp@intel.com/ All errors (new ones prefixed by >>): arch/microblaze/kernel/entry.S: Assembler messages: >> arch/microblaze/kernel/entry.S:945: Error: unknown opcode "suspend" vim +/suspend +945 arch/microblaze/kernel/entry.S 825 826 /* restore all the tlb's */ 827 addik r3, r0, TOPHYS(tlb_skip) 828 addik r6, r0, PT_TLBL0 829 addik r7, r0, PT_TLBH0 830 restore_tlb: 831 add r6, r6, r1 832 add r7, r7, r1 833 lwi r2, r6, 0 834 mts rtlblo, r2 835 lwi r2, r7, 0 836 mts rtlbhi, r2 837 addik r6, r6, 4 838 addik r7, r7, 4 839 bgtid r3, restore_tlb 840 addik r3, r3, -1 841 842 lwi r5, r0, TOPHYS(xmb_manager_dev) 843 lwi r8, r0, TOPHYS(xmb_manager_reset_callback) 844 set_vms 845 /* return from reset need -8 to adjust for rtsd r15, 8 */ 846 addik r15, r0, ret_from_reset - 8 847 rtbd r8, 0 848 nop 849 850 ret_from_reset: 851 set_bip /* Ints masked for state restore */ 852 VM_OFF 853 /* MS: Restore all regs */ 854 RESTORE_REGS 855 lwi r14, r1, PT_R14 856 lwi r16, r1, PT_PC 857 addik r1, r1, PT_SIZE + 36 858 rtbd r16, 0 859 nop 860 861 /* 862 * Break handler for MB Manager. Enter to _xmb_manager_break by 863 * injecting fault in one of the TMR Microblaze core. 864 * FIXME: This break handler supports getting 865 * called from kernel space only. 866 */ 867 C_ENTRY(_xmb_manager_break): 868 /* 869 * Reserve memory in the stack for context store/restore 870 * (which includes memory for storing tlbs (max two tlbs)) 871 */ 872 addik r1, r1, -PT_SIZE - 36 873 swi r1, r0, xmb_manager_stackpointer 874 SAVE_REGS 875 swi r14, r1, PT_R14 /* rewrite saved R14 value */ 876 swi r16, r1, PT_PC; /* PC and r16 are the same */ 877 878 lwi r6, r0, TOPHYS(xmb_manager_baseaddr) 879 lwi r7, r0, TOPHYS(xmb_manager_crval) 880 /* 881 * When the break vector gets asserted because of error injection, 882 * the break signal must be blocked before exiting from the 883 * break handler, below code configures the tmr manager 884 * control register to block break signal. 885 */ 886 swi r7, r6, 0 887 888 /* Save the special purpose registers */ 889 mfs r2, rpid 890 swi r2, r1, PT_PID 891 892 mfs r2, rtlbx 893 swi r2, r1, PT_TLBI 894 895 mfs r2, rzpr 896 swi r2, r1, PT_ZPR 897 898 #if CONFIG_XILINX_MICROBLAZE0_USE_FPU 899 mfs r2, rfsr 900 swi r2, r1, PT_FSR 901 #endif 902 mfs r2, rmsr 903 swi r2, r1, PT_MSR 904 905 /* Save all the tlb's */ 906 addik r3, r0, TOPHYS(tlb_skip) 907 addik r6, r0, PT_TLBL0 908 addik r7, r0, PT_TLBH0 909 save_tlb: 910 add r6, r6, r1 911 add r7, r7, r1 912 mfs r2, rtlblo 913 swi r2, r6, 0 914 mfs r2, rtlbhi 915 swi r2, r7, 0 916 addik r6, r6, 4 917 addik r7, r7, 4 918 bgtid r3, save_tlb 919 addik r3, r3, -1 920 921 lwi r5, r0, TOPHYS(xmb_manager_dev) 922 lwi r8, r0, TOPHYS(xmb_manager_callback) 923 /* return from break need -8 to adjust for rtsd r15, 8 */ 924 addik r15, r0, ret_from_break - 8 925 rtbd r8, 0 926 nop 927 928 ret_from_break: 929 /* flush the d-cache */ 930 bralid r15, mb_flush_dcache 931 nop 932 933 /* 934 * To make sure microblaze i-cache is in a proper state 935 * invalidate the i-cache. 936 */ 937 bralid r15, mb_invalidate_icache 938 nop 939 940 set_bip; /* Ints masked for state restore */ 941 VM_OFF; 942 mbar 1 943 mbar 2 944 bri 4 > 945 suspend 946 nop 947 #endif 948 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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