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/sched.h>
  22 #include <linux/mm.h>
  23 #include <linux/dma-mapping.h>
  24 #include <linux/kvm_host.h>
  25 #include <asm/fixmap.h>
  26 #include <asm/thread_info.h>
  27 #include <asm/memory.h>
  28 #include <asm/smp_plat.h>
  29 #include <asm/suspend.h>
  30 #include <asm/vdso_datapage.h>
  31 #include <linux/kbuild.h>
  32 #include <linux/arm-smccc.h>
  33
  34 int main(void)
  35 {
  36   DEFINE(TSK_ACTIVE_MM,         offsetof(struct task_struct, active_mm));
  37   BLANK();
  38 #ifdef CONFIG_THREAD_INFO_IN_TASK
  39   DEFINE(TSK_TI_FLAGS,          offsetof(struct task_struct, thread_info.flags));
  40   DEFINE(TSK_TI_PREEMPT,        offsetof(struct task_struct, thread_info.preempt_count));
  41   DEFINE(TSK_TI_ADDR_LIMIT,     offsetof(struct task_struct, thread_info.addr_limit));
  42   DEFINE(TSK_STACK,             offsetof(struct task_struct, stack));
  43 #else
  44   DEFINE(TI_FLAGS,              offsetof(struct thread_info, flags));
  45   DEFINE(TI_PREEMPT,            offsetof(struct thread_info, preempt_count));
  46   DEFINE(TI_ADDR_LIMIT,         offsetof(struct thread_info, addr_limit));
  47 #endif
  48 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
  49   DEFINE(TSK_TI_TTBR0,          offsetof(struct thread_info, ttbr0));
  50 #endif
  51   BLANK();
  52   DEFINE(THREAD_CPU_CONTEXT,    offsetof(struct task_struct, thread.cpu_context));
  53   BLANK();
  54   DEFINE(S_X0,                  offsetof(struct pt_regs, regs[0]));
  55   DEFINE(S_X1,                  offsetof(struct pt_regs, regs[1]));
  56   DEFINE(S_X2,                  offsetof(struct pt_regs, regs[2]));
  57   DEFINE(S_X3,                  offsetof(struct pt_regs, regs[3]));
  58   DEFINE(S_X4,                  offsetof(struct pt_regs, regs[4]));
  59   DEFINE(S_X5,                  offsetof(struct pt_regs, regs[5]));
  60   DEFINE(S_X6,                  offsetof(struct pt_regs, regs[6]));
  61   DEFINE(S_X7,                  offsetof(struct pt_regs, regs[7]));
  62   DEFINE(S_LR,                  offsetof(struct pt_regs, regs[30]));
  63   DEFINE(S_SP,                  offsetof(struct pt_regs, sp));
  64 #ifdef CONFIG_COMPAT
  65   DEFINE(S_COMPAT_SP,           offsetof(struct pt_regs, compat_sp));
  66 #endif
  67   DEFINE(S_PSTATE,              offsetof(struct pt_regs, pstate));
  68   DEFINE(S_PC,                  offsetof(struct pt_regs, pc));
  69   DEFINE(S_ORIG_X0,             offsetof(struct pt_regs, orig_x0));
  70   DEFINE(S_SYSCALLNO,           offsetof(struct pt_regs, syscallno));
  71   DEFINE(S_ORIG_ADDR_LIMIT,     offsetof(struct pt_regs, orig_addr_limit));
  72   DEFINE(S_FRAME_SIZE,          sizeof(struct pt_regs));
  73   BLANK();
  74   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
  75   BLANK();
  76   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
  77   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
  78   BLANK();
  79   DEFINE(VM_EXEC,               VM_EXEC);
  80   BLANK();
  81   DEFINE(PAGE_SZ,               PAGE_SIZE);
  82   BLANK();
  83   DEFINE(DMA_BIDIRECTIONAL,     DMA_BIDIRECTIONAL);
  84   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
  85   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
  86   BLANK();
  87 #ifdef CONFIG_THREAD_INFO_IN_TASK
  88   DEFINE(CPU_BOOT_STACK,        offsetof(struct secondary_data, stack));
  89   DEFINE(CPU_BOOT_TASK,         offsetof(struct secondary_data, task));
  90   BLANK();
  91 #endif
  92 #ifdef CONFIG_KVM_ARM_HOST
  93   DEFINE(VCPU_CONTEXT,          offsetof(struct kvm_vcpu, arch.ctxt));
  94   DEFINE(CPU_GP_REGS,           offsetof(struct kvm_cpu_context, gp_regs));
  95   DEFINE(CPU_USER_PT_REGS,      offsetof(struct kvm_regs, regs));
  96   DEFINE(CPU_FP_REGS,           offsetof(struct kvm_regs, fp_regs));
  97   DEFINE(CPU_SP_EL1,            offsetof(struct kvm_regs, sp_el1));
  98   DEFINE(CPU_ELR_EL1,           offsetof(struct kvm_regs, elr_el1));
  99   DEFINE(CPU_SPSR,              offsetof(struct kvm_regs, spsr));
 100   DEFINE(CPU_SYSREGS,           offsetof(struct kvm_cpu_context, sys_regs));
 101   DEFINE(VCPU_ESR_EL2,          offsetof(struct kvm_vcpu, arch.fault.esr_el2));
 102   DEFINE(VCPU_FAR_EL2,          offsetof(struct kvm_vcpu, arch.fault.far_el2));
 103   DEFINE(VCPU_HPFAR_EL2,        offsetof(struct kvm_vcpu, arch.fault.hpfar_el2));
 104   DEFINE(VCPU_DEBUG_FLAGS,      offsetof(struct kvm_vcpu, arch.debug_flags));
 105   DEFINE(VCPU_DEBUG_PTR,        offsetof(struct kvm_vcpu, arch.debug_ptr));
 106   DEFINE(DEBUG_BCR,             offsetof(struct kvm_guest_debug_arch, dbg_bcr));
 107   DEFINE(DEBUG_BVR,             offsetof(struct kvm_guest_debug_arch, dbg_bvr));
 108   DEFINE(DEBUG_WCR,             offsetof(struct kvm_guest_debug_arch, dbg_wcr));
 109   DEFINE(DEBUG_WVR,             offsetof(struct kvm_guest_debug_arch, dbg_wvr));
 110   DEFINE(VCPU_HCR_EL2,          offsetof(struct kvm_vcpu, arch.hcr_el2));
 111   DEFINE(VCPU_MDCR_EL2, offsetof(struct kvm_vcpu, arch.mdcr_el2));
 112   DEFINE(VCPU_IRQ_LINES,        offsetof(struct kvm_vcpu, arch.irq_lines));
 113   DEFINE(VCPU_HOST_CONTEXT,     offsetof(struct kvm_vcpu, arch.host_cpu_context));
 114   DEFINE(VCPU_HOST_DEBUG_STATE, offsetof(struct kvm_vcpu, arch.host_debug_state));
 115   DEFINE(VCPU_TIMER_CNTV_CTL,   offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_ctl));
 116   DEFINE(VCPU_TIMER_CNTV_CVAL,  offsetof(struct kvm_vcpu, arch.timer_cpu.cntv_cval));
 117   DEFINE(KVM_TIMER_CNTVOFF,     offsetof(struct kvm, arch.timer.cntvoff));
 118   DEFINE(KVM_TIMER_ENABLED,     offsetof(struct kvm, arch.timer.enabled));
 119   DEFINE(VCPU_KVM,              offsetof(struct kvm_vcpu, kvm));
 120   DEFINE(VCPU_VGIC_CPU,         offsetof(struct kvm_vcpu, arch.vgic_cpu));
 121   DEFINE(VGIC_V2_CPU_HCR,       offsetof(struct vgic_cpu, vgic_v2.vgic_hcr));
 122   DEFINE(VGIC_V2_CPU_VMCR,      offsetof(struct vgic_cpu, vgic_v2.vgic_vmcr));
 123   DEFINE(VGIC_V2_CPU_MISR,      offsetof(struct vgic_cpu, vgic_v2.vgic_misr));
 124   DEFINE(VGIC_V2_CPU_EISR,      offsetof(struct vgic_cpu, vgic_v2.vgic_eisr));
 125   DEFINE(VGIC_V2_CPU_ELRSR,     offsetof(struct vgic_cpu, vgic_v2.vgic_elrsr));
 126   DEFINE(VGIC_V2_CPU_APR,       offsetof(struct vgic_cpu, vgic_v2.vgic_apr));
 127   DEFINE(VGIC_V2_CPU_LR,        offsetof(struct vgic_cpu, vgic_v2.vgic_lr));
 128   DEFINE(VGIC_V3_CPU_SRE,       offsetof(struct vgic_cpu, vgic_v3.vgic_sre));
 129   DEFINE(VGIC_V3_CPU_HCR,       offsetof(struct vgic_cpu, vgic_v3.vgic_hcr));
 130   DEFINE(VGIC_V3_CPU_VMCR,      offsetof(struct vgic_cpu, vgic_v3.vgic_vmcr));
 131   DEFINE(VGIC_V3_CPU_MISR,      offsetof(struct vgic_cpu, vgic_v3.vgic_misr));
 132   DEFINE(VGIC_V3_CPU_EISR,      offsetof(struct vgic_cpu, vgic_v3.vgic_eisr));
 133   DEFINE(VGIC_V3_CPU_ELRSR,     offsetof(struct vgic_cpu, vgic_v3.vgic_elrsr));
 134   DEFINE(VGIC_V3_CPU_AP0R,      offsetof(struct vgic_cpu, vgic_v3.vgic_ap0r));
 135   DEFINE(VGIC_V3_CPU_AP1R,      offsetof(struct vgic_cpu, vgic_v3.vgic_ap1r));
 136   DEFINE(VGIC_V3_CPU_LR,        offsetof(struct vgic_cpu, vgic_v3.vgic_lr));
 137   DEFINE(VGIC_CPU_NR_LR,        offsetof(struct vgic_cpu, nr_lr));
 138   DEFINE(KVM_VTTBR,             offsetof(struct kvm, arch.vttbr));
 139   DEFINE(KVM_VGIC_VCTRL,        offsetof(struct kvm, arch.vgic.vctrl_base));
 140 #endif
 141 #ifdef CONFIG_CPU_PM
 142   DEFINE(CPU_SUSPEND_SZ,        sizeof(struct cpu_suspend_ctx));
 143   DEFINE(CPU_CTX_SP,            offsetof(struct cpu_suspend_ctx, sp));
 144   DEFINE(MPIDR_HASH_MASK,       offsetof(struct mpidr_hash, mask));
 145   DEFINE(MPIDR_HASH_SHIFTS,     offsetof(struct mpidr_hash, shift_aff));
 146   DEFINE(SLEEP_SAVE_SP_SZ,      sizeof(struct sleep_save_sp));
 147   DEFINE(SLEEP_SAVE_SP_PHYS,    offsetof(struct sleep_save_sp, save_ptr_stash_phys));
 148   DEFINE(SLEEP_SAVE_SP_VIRT,    offsetof(struct sleep_save_sp, save_ptr_stash));
 149 #endif
 150   DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0));
 151   DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2));
 152   BLANK();
 153 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 154   DEFINE(TRAMP_VALIAS,          TRAMP_VALIAS);
 155 #endif
 156   return 0;
 157 }