arch/arm64/kernel/asm-offsets.c

   1 /*
   2  * Based on arch/arm/kernel/asm-offsets.c
   3  *
   4  * Copyright (C) 1995-2003 Russell King
   5  *               2001-2002 Keith Owens
   6  * Copyright (C) 2012 ARM Ltd.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <linux/arm_sdei.h>
  22 #include <linux/sched.h>
  23 #include <linux/mm.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/kvm_host.h>
  26 #include <linux/preempt.h>
  27 #include <linux/suspend.h>
  28 #include <asm/cpufeature.h>
  29 #include <asm/fixmap.h>
  30 #include <asm/thread_info.h>
  31 #include <asm/memory.h>
  32 #include <asm/smp_plat.h>
  33 #include <asm/suspend.h>
  34 #include <asm/vdso_datapage.h>
  35 #include <linux/kbuild.h>
  36 #include <linux/arm-smccc.h>
  37
  38 int main(void)
  39 {
  40   DEFINE(TSK_ACTIVE_MM,         offsetof(struct task_struct, active_mm));
  41   BLANK();
  42   DEFINE(TSK_TI_FLAGS,          offsetof(struct task_struct, thread_info.flags));
  43   DEFINE(TSK_TI_PREEMPT,        offsetof(struct task_struct, thread_info.preempt_count));
  44   DEFINE(TSK_TI_ADDR_LIMIT,     offsetof(struct task_struct, thread_info.addr_limit));
  45 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
  46   DEFINE(TSK_TI_TTBR0,          offsetof(struct task_struct, thread_info.ttbr0));
  47 #endif
  48   DEFINE(TSK_STACK,             offsetof(struct task_struct, stack));
  49   BLANK();
  50   DEFINE(THREAD_CPU_CONTEXT,    offsetof(struct task_struct, thread.cpu_context));
  51   BLANK();
  52   DEFINE(S_X0,                  offsetof(struct pt_regs, regs[0]));
  53   DEFINE(S_X1,                  offsetof(struct pt_regs, regs[1]));
  54   DEFINE(S_X2,                  offsetof(struct pt_regs, regs[2]));
  55   DEFINE(S_X3,                  offsetof(struct pt_regs, regs[3]));
  56   DEFINE(S_X4,                  offsetof(struct pt_regs, regs[4]));
  57   DEFINE(S_X5,                  offsetof(struct pt_regs, regs[5]));
  58   DEFINE(S_X6,                  offsetof(struct pt_regs, regs[6]));
  59   DEFINE(S_X7,                  offsetof(struct pt_regs, regs[7]));
  60   DEFINE(S_X8,                  offsetof(struct pt_regs, regs[8]));
  61   DEFINE(S_X10,                 offsetof(struct pt_regs, regs[10]));
  62   DEFINE(S_X12,                 offsetof(struct pt_regs, regs[12]));
  63   DEFINE(S_X14,                 offsetof(struct pt_regs, regs[14]));
  64   DEFINE(S_X16,                 offsetof(struct pt_regs, regs[16]));
  65   DEFINE(S_X18,                 offsetof(struct pt_regs, regs[18]));
  66   DEFINE(S_X20,                 offsetof(struct pt_regs, regs[20]));
  67   DEFINE(S_X22,                 offsetof(struct pt_regs, regs[22]));
  68   DEFINE(S_X24,                 offsetof(struct pt_regs, regs[24]));
  69   DEFINE(S_X26,                 offsetof(struct pt_regs, regs[26]));
  70   DEFINE(S_X28,                 offsetof(struct pt_regs, regs[28]));
  71   DEFINE(S_LR,                  offsetof(struct pt_regs, regs[30]));
  72   DEFINE(S_SP,                  offsetof(struct pt_regs, sp));
  73 #ifdef CONFIG_COMPAT
  74   DEFINE(S_COMPAT_SP,           offsetof(struct pt_regs, compat_sp));
  75 #endif
  76   DEFINE(S_PSTATE,              offsetof(struct pt_regs, pstate));
  77   DEFINE(S_PC,                  offsetof(struct pt_regs, pc));
  78   DEFINE(S_ORIG_X0,             offsetof(struct pt_regs, orig_x0));
  79   DEFINE(S_SYSCALLNO,           offsetof(struct pt_regs, syscallno));
  80   DEFINE(S_ORIG_ADDR_LIMIT,     offsetof(struct pt_regs, orig_addr_limit));
  81   DEFINE(S_STACKFRAME,          offsetof(struct pt_regs, stackframe));
  82   DEFINE(S_FRAME_SIZE,          sizeof(struct pt_regs));
  83   BLANK();
  84   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
  85   BLANK();
  86   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
  87   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
  88   BLANK();
  89   DEFINE(VM_EXEC,               VM_EXEC);
  90   BLANK();
  91   DEFINE(PAGE_SZ,               PAGE_SIZE);
  92   BLANK();
  93   DEFINE(DMA_BIDIRECTIONAL,     DMA_BIDIRECTIONAL);
  94   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
  95   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
  96   BLANK();
  97   DEFINE(PREEMPT_DISABLE_OFFSET, PREEMPT_DISABLE_OFFSET);
  98   BLANK();
  99   DEFINE(CLOCK_REALTIME,        CLOCK_REALTIME);
 100   DEFINE(CLOCK_MONOTONIC,       CLOCK_MONOTONIC);
 101   DEFINE(CLOCK_MONOTONIC_RAW,   CLOCK_MONOTONIC_RAW);
 102   DEFINE(CLOCK_REALTIME_RES,    MONOTONIC_RES_NSEC);
 103   DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
 104   DEFINE(CLOCK_MONOTONIC_COARSE,CLOCK_MONOTONIC_COARSE);
 105   DEFINE(CLOCK_COARSE_RES,      LOW_RES_NSEC);
 106   DEFINE(NSEC_PER_SEC,          NSEC_PER_SEC);
 107   BLANK();
 108   DEFINE(VDSO_CS_CYCLE_LAST,    offsetof(struct vdso_data, cs_cycle_last));
 109   DEFINE(VDSO_RAW_TIME_SEC,     offsetof(struct vdso_data, raw_time_sec));
 110   DEFINE(VDSO_RAW_TIME_NSEC,    offsetof(struct vdso_data, raw_time_nsec));
 111   DEFINE(VDSO_XTIME_CLK_SEC,    offsetof(struct vdso_data, xtime_clock_sec));
 112   DEFINE(VDSO_XTIME_CLK_NSEC,   offsetof(struct vdso_data, xtime_clock_nsec));
 113   DEFINE(VDSO_XTIME_CRS_SEC,    offsetof(struct vdso_data, xtime_coarse_sec));
 114   DEFINE(VDSO_XTIME_CRS_NSEC,   offsetof(struct vdso_data, xtime_coarse_nsec));
 115   DEFINE(VDSO_WTM_CLK_SEC,      offsetof(struct vdso_data, wtm_clock_sec));
 116   DEFINE(VDSO_WTM_CLK_NSEC,     offsetof(struct vdso_data, wtm_clock_nsec));
 117   DEFINE(VDSO_TB_SEQ_COUNT,     offsetof(struct vdso_data, tb_seq_count));
 118   DEFINE(VDSO_CS_MONO_MULT,     offsetof(struct vdso_data, cs_mono_mult));
 119   DEFINE(VDSO_CS_RAW_MULT,      offsetof(struct vdso_data, cs_raw_mult));
 120   DEFINE(VDSO_CS_SHIFT,         offsetof(struct vdso_data, cs_shift));
 121   DEFINE(VDSO_TZ_MINWEST,       offsetof(struct vdso_data, tz_minuteswest));
 122   DEFINE(VDSO_TZ_DSTTIME,       offsetof(struct vdso_data, tz_dsttime));
 123   DEFINE(VDSO_USE_SYSCALL,      offsetof(struct vdso_data, use_syscall));
 124   BLANK();
 125   DEFINE(TVAL_TV_SEC,           offsetof(struct timeval, tv_sec));
 126   DEFINE(TVAL_TV_USEC,          offsetof(struct timeval, tv_usec));
 127   DEFINE(TSPEC_TV_SEC,          offsetof(struct timespec, tv_sec));
 128   DEFINE(TSPEC_TV_NSEC,         offsetof(struct timespec, tv_nsec));
 129   BLANK();
 130   DEFINE(TZ_MINWEST,            offsetof(struct timezone, tz_minuteswest));
 131   DEFINE(TZ_DSTTIME,            offsetof(struct timezone, tz_dsttime));
 132   BLANK();
 133   DEFINE(CPU_BOOT_STACK,        offsetof(struct secondary_data, stack));
 134   DEFINE(CPU_BOOT_TASK,         offsetof(struct secondary_data, task));
 135   BLANK();
 136 #ifdef CONFIG_KVM_ARM_HOST
 137   DEFINE(VCPU_CONTEXT,          offsetof(struct kvm_vcpu, arch.ctxt));
 138   DEFINE(VCPU_FAULT_DISR,       offsetof(struct kvm_vcpu, arch.fault.disr_el1));
 139   DEFINE(VCPU_WORKAROUND_FLAGS, offsetof(struct kvm_vcpu, arch.workaround_flags));
 140   DEFINE(CPU_GP_REGS,           offsetof(struct kvm_cpu_context, gp_regs));
 141   DEFINE(CPU_USER_PT_REGS,      offsetof(struct kvm_regs, regs));
 142   DEFINE(CPU_FP_REGS,           offsetof(struct kvm_regs, fp_regs));
 143   DEFINE(VCPU_FPEXC32_EL2,      offsetof(struct kvm_vcpu, arch.ctxt.sys_regs[FPEXC32_EL2]));
 144   DEFINE(VCPU_HOST_CONTEXT,     offsetof(struct kvm_vcpu, arch.host_cpu_context));
 145   DEFINE(HOST_CONTEXT_VCPU,     offsetof(struct kvm_cpu_context, __hyp_running_vcpu));
 146 #endif
 147 #ifdef CONFIG_CPU_PM
 148   DEFINE(CPU_SUSPEND_SZ,        sizeof(struct cpu_suspend_ctx));
 149   DEFINE(CPU_CTX_SP,            offsetof(struct cpu_suspend_ctx, sp));
 150   DEFINE(MPIDR_HASH_MASK,       offsetof(struct mpidr_hash, mask));
 151   DEFINE(MPIDR_HASH_SHIFTS,     offsetof(struct mpidr_hash, shift_aff));
 152   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,  offsetof(struct sleep_stack_data, system_regs));
 153   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,  offsetof(struct sleep_stack_data, callee_saved_regs));
 154 #endif
 155   DEFINE(ARM_SMCCC_RES_X0_OFFS,         offsetof(struct arm_smccc_res, a0));
 156   DEFINE(ARM_SMCCC_RES_X2_OFFS,         offsetof(struct arm_smccc_res, a2));
 157   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,       offsetof(struct arm_smccc_quirk, id));
 158   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,    offsetof(struct arm_smccc_quirk, state));
 159   BLANK();
 160   DEFINE(HIBERN_PBE_ORIG,       offsetof(struct pbe, orig_address));
 161   DEFINE(HIBERN_PBE_ADDR,       offsetof(struct pbe, address));
 162   DEFINE(HIBERN_PBE_NEXT,       offsetof(struct pbe, next));
 163   DEFINE(ARM64_FTR_SYSVAL,      offsetof(struct arm64_ftr_reg, sys_val));
 164   BLANK();
 165 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 166   DEFINE(TRAMP_VALIAS,          TRAMP_VALIAS);
 167 #endif
 168 #ifdef CONFIG_ARM_SDE_INTERFACE
 169   DEFINE(SDEI_EVENT_INTREGS,    offsetof(struct sdei_registered_event, interrupted_regs));
 170   DEFINE(SDEI_EVENT_PRIORITY,   offsetof(struct sdei_registered_event, priority));
 171 #endif
 172   return 0;
 173 }