1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Generate definitions needed by assembly language modules. 4 * This code generates raw asm output which is post-processed to extract 5 * and format the required data. 6 */ 7 8 #define ASM_OFFSETS_C 9 10 #include <linux/kbuild.h> 11 #include <linux/kvm_host.h> 12 #include <linux/sched.h> 13 #include <linux/purgatory.h> 14 #include <linux/pgtable.h> 15 #include <asm/idle.h> 16 #include <asm/gmap.h> 17 #include <asm/stacktrace.h> 18 19 int main(void) 20 { 21 /* task struct offsets */ 22 OFFSET(__TASK_stack, task_struct, stack); 23 OFFSET(__TASK_thread, task_struct, thread); 24 OFFSET(__TASK_pid, task_struct, pid); 25 BLANK(); 26 /* thread struct offsets */ 27 OFFSET(__THREAD_ksp, thread_struct, ksp); 28 BLANK(); 29 /* thread info offsets */ 30 OFFSET(__TI_flags, task_struct, thread_info.flags); 31 BLANK(); 32 /* pt_regs offsets */ 33 OFFSET(__PT_PSW, pt_regs, psw); 34 OFFSET(__PT_GPRS, pt_regs, gprs); 35 OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2); 36 OFFSET(__PT_FLAGS, pt_regs, flags); 37 OFFSET(__PT_CR1, pt_regs, cr1); 38 DEFINE(__PT_SIZE, sizeof(struct pt_regs)); 39 BLANK(); 40 /* stack_frame offsets */ 41 OFFSET(__SF_BACKCHAIN, stack_frame, back_chain); 42 OFFSET(__SF_GPRS, stack_frame, gprs); 43 OFFSET(__SF_EMPTY, stack_frame, empty1[0]); 44 OFFSET(__SF_SIE_CONTROL, stack_frame, empty1[1]); 45 OFFSET(__SF_SIE_SAVEAREA, stack_frame, empty1[2]); 46 OFFSET(__SF_SIE_REASON, stack_frame, empty1[3]); 47 OFFSET(__SF_SIE_FLAGS, stack_frame, empty1[4]); 48 BLANK(); 49 /* idle data offsets */ 50 OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter); 51 OFFSET(__CLOCK_IDLE_EXIT, s390_idle_data, clock_idle_exit); 52 OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter); 53 OFFSET(__TIMER_IDLE_EXIT, s390_idle_data, timer_idle_exit); 54 OFFSET(__MT_CYCLES_ENTER, s390_idle_data, mt_cycles_enter); 55 BLANK(); 56 /* hardware defined lowcore locations 0x000 - 0x1ff */ 57 OFFSET(__LC_EXT_PARAMS, lowcore, ext_params); 58 OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr); 59 OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code); 60 OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc); 61 OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_code); 62 OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code); 63 OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num); 64 OFFSET(__LC_PER_CODE, lowcore, per_code); 65 OFFSET(__LC_PER_ATMID, lowcore, per_atmid); 66 OFFSET(__LC_PER_ADDRESS, lowcore, per_address); 67 OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id); 68 OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id); 69 OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id); 70 OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id); 71 OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code); 72 OFFSET(__LC_MON_CODE, lowcore, monitor_code); 73 OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id); 74 OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr); 75 OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm); 76 OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word); 77 OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code); 78 OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code); 79 OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address); 80 OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr); 81 OFFSET(__LC_RETURN_LPSWE, lowcore, return_lpswe); 82 OFFSET(__LC_RETURN_MCCK_LPSWE, lowcore, return_mcck_lpswe); 83 OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw); 84 OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw); 85 OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw); 86 OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw); 87 OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw); 88 OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw); 89 OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw); 90 OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw); 91 OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw); 92 OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw); 93 OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw); 94 OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw); 95 /* software defined lowcore locations 0x200 - 0xdff*/ 96 OFFSET(__LC_SAVE_AREA_SYNC, lowcore, save_area_sync); 97 OFFSET(__LC_SAVE_AREA_ASYNC, lowcore, save_area_async); 98 OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart); 99 OFFSET(__LC_CPU_FLAGS, lowcore, cpu_flags); 100 OFFSET(__LC_RETURN_PSW, lowcore, return_psw); 101 OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw); 102 OFFSET(__LC_SYS_ENTER_TIMER, lowcore, sys_enter_timer); 103 OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer); 104 OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer); 105 OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer); 106 OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock); 107 OFFSET(__LC_INT_CLOCK, lowcore, int_clock); 108 OFFSET(__LC_MCCK_CLOCK, lowcore, mcck_clock); 109 OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock); 110 OFFSET(__LC_CURRENT, lowcore, current_task); 111 OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack); 112 OFFSET(__LC_ASYNC_STACK, lowcore, async_stack); 113 OFFSET(__LC_NODAT_STACK, lowcore, nodat_stack); 114 OFFSET(__LC_RESTART_STACK, lowcore, restart_stack); 115 OFFSET(__LC_MCCK_STACK, lowcore, mcck_stack); 116 OFFSET(__LC_RESTART_FN, lowcore, restart_fn); 117 OFFSET(__LC_RESTART_DATA, lowcore, restart_data); 118 OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source); 119 OFFSET(__LC_RESTART_FLAGS, lowcore, restart_flags); 120 OFFSET(__LC_KERNEL_ASCE, lowcore, kernel_asce); 121 OFFSET(__LC_USER_ASCE, lowcore, user_asce); 122 OFFSET(__LC_LPP, lowcore, lpp); 123 OFFSET(__LC_CURRENT_PID, lowcore, current_pid); 124 OFFSET(__LC_PERCPU_OFFSET, lowcore, percpu_offset); 125 OFFSET(__LC_MACHINE_FLAGS, lowcore, machine_flags); 126 OFFSET(__LC_PREEMPT_COUNT, lowcore, preempt_count); 127 OFFSET(__LC_GMAP, lowcore, gmap); 128 OFFSET(__LC_BR_R1, lowcore, br_r1_trampoline); 129 /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */ 130 OFFSET(__LC_DUMP_REIPL, lowcore, ipib); 131 /* hardware defined lowcore locations 0x1000 - 0x18ff */ 132 OFFSET(__LC_MCESAD, lowcore, mcesad); 133 OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2); 134 OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area); 135 OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area); 136 OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area); 137 OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area); 138 OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area); 139 OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area); 140 OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area); 141 OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area); 142 OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area); 143 OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area); 144 OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb); 145 BLANK(); 146 /* gmap/sie offsets */ 147 OFFSET(__GMAP_ASCE, gmap, asce); 148 OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c); 149 OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20); 150 /* kexec_sha_region */ 151 OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start); 152 OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len); 153 DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region)); 154 /* sizeof kernel parameter area */ 155 DEFINE(__PARMAREA_SIZE, sizeof(struct parmarea)); 156 /* kernel parameter area offsets */ 157 DEFINE(IPL_DEVICE, PARMAREA + offsetof(struct parmarea, ipl_device)); 158 DEFINE(INITRD_START, PARMAREA + offsetof(struct parmarea, initrd_start)); 159 DEFINE(INITRD_SIZE, PARMAREA + offsetof(struct parmarea, initrd_size)); 160 DEFINE(OLDMEM_BASE, PARMAREA + offsetof(struct parmarea, oldmem_base)); 161 DEFINE(OLDMEM_SIZE, PARMAREA + offsetof(struct parmarea, oldmem_size)); 162 DEFINE(COMMAND_LINE, PARMAREA + offsetof(struct parmarea, command_line)); 163 return 0; 164 } 165