xref: /openbmc/linux/arch/arm/kernel/asm-offsets.c (revision a9ff6961)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 1995-2003 Russell King
4  *               2001-2002 Keith Owens
5  *
6  * Generate definitions needed by assembly language modules.
7  * This code generates raw asm output which is post-processed to extract
8  * and format the required data.
9  */
10 #include <linux/compiler.h>
11 #include <linux/sched.h>
12 #include <linux/mm.h>
13 #include <linux/dma-mapping.h>
14 #include <asm/cacheflush.h>
15 #include <asm/kexec-internal.h>
16 #include <asm/glue-df.h>
17 #include <asm/glue-pf.h>
18 #include <asm/mach/arch.h>
19 #include <asm/thread_info.h>
20 #include <asm/page.h>
21 #include <asm/mpu.h>
22 #include <asm/procinfo.h>
23 #include <asm/suspend.h>
24 #include <asm/vdso_datapage.h>
25 #include <asm/hardware/cache-l2x0.h>
26 #include <linux/kbuild.h>
27 #include <linux/arm-smccc.h>
28 #include "signal.h"
29 
30 /*
31  * Make sure that the compiler and target are compatible.
32  */
33 #if defined(__APCS_26__)
34 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
35 #endif
36 
main(void)37 int main(void)
38 {
39   DEFINE(TSK_ACTIVE_MM,		offsetof(struct task_struct, active_mm));
40 #ifdef CONFIG_STACKPROTECTOR
41   DEFINE(TSK_STACK_CANARY,	offsetof(struct task_struct, stack_canary));
42 #endif
43   BLANK();
44   DEFINE(TI_FLAGS,		offsetof(struct thread_info, flags));
45   DEFINE(TI_PREEMPT,		offsetof(struct thread_info, preempt_count));
46   DEFINE(TI_CPU,		offsetof(struct thread_info, cpu));
47   DEFINE(TI_CPU_DOMAIN,		offsetof(struct thread_info, cpu_domain));
48   DEFINE(TI_CPU_SAVE,		offsetof(struct thread_info, cpu_context));
49   DEFINE(TI_ABI_SYSCALL,	offsetof(struct thread_info, abi_syscall));
50   DEFINE(TI_TP_VALUE,		offsetof(struct thread_info, tp_value));
51   DEFINE(TI_FPSTATE,		offsetof(struct thread_info, fpstate));
52 #ifdef CONFIG_VFP
53   DEFINE(TI_VFPSTATE,		offsetof(struct thread_info, vfpstate));
54 #ifdef CONFIG_SMP
55   DEFINE(VFP_CPU,		offsetof(union vfp_state, hard.cpu));
56 #endif
57 #endif
58   DEFINE(SOFTIRQ_DISABLE_OFFSET,SOFTIRQ_DISABLE_OFFSET);
59 #ifdef CONFIG_ARM_THUMBEE
60   DEFINE(TI_THUMBEE_STATE,	offsetof(struct thread_info, thumbee_state));
61 #endif
62 #ifdef CONFIG_IWMMXT
63   DEFINE(TI_IWMMXT_STATE,	offsetof(struct thread_info, fpstate.iwmmxt));
64 #endif
65   BLANK();
66   DEFINE(S_R0,			offsetof(struct pt_regs, ARM_r0));
67   DEFINE(S_R1,			offsetof(struct pt_regs, ARM_r1));
68   DEFINE(S_R2,			offsetof(struct pt_regs, ARM_r2));
69   DEFINE(S_R3,			offsetof(struct pt_regs, ARM_r3));
70   DEFINE(S_R4,			offsetof(struct pt_regs, ARM_r4));
71   DEFINE(S_R5,			offsetof(struct pt_regs, ARM_r5));
72   DEFINE(S_R6,			offsetof(struct pt_regs, ARM_r6));
73   DEFINE(S_R7,			offsetof(struct pt_regs, ARM_r7));
74   DEFINE(S_R8,			offsetof(struct pt_regs, ARM_r8));
75   DEFINE(S_R9,			offsetof(struct pt_regs, ARM_r9));
76   DEFINE(S_R10,			offsetof(struct pt_regs, ARM_r10));
77   DEFINE(S_FP,			offsetof(struct pt_regs, ARM_fp));
78   DEFINE(S_IP,			offsetof(struct pt_regs, ARM_ip));
79   DEFINE(S_SP,			offsetof(struct pt_regs, ARM_sp));
80   DEFINE(S_LR,			offsetof(struct pt_regs, ARM_lr));
81   DEFINE(S_PC,			offsetof(struct pt_regs, ARM_pc));
82   DEFINE(S_PSR,			offsetof(struct pt_regs, ARM_cpsr));
83   DEFINE(S_OLD_R0,		offsetof(struct pt_regs, ARM_ORIG_r0));
84   DEFINE(PT_REGS_SIZE,		sizeof(struct pt_regs));
85   DEFINE(SVC_DACR,		offsetof(struct svc_pt_regs, dacr));
86   DEFINE(SVC_REGS_SIZE,		sizeof(struct svc_pt_regs));
87   BLANK();
88   DEFINE(SIGFRAME_RC3_OFFSET,	offsetof(struct sigframe, retcode[3]));
89   DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3]));
90   BLANK();
91 #ifdef CONFIG_CACHE_L2X0
92   DEFINE(L2X0_R_PHY_BASE,	offsetof(struct l2x0_regs, phy_base));
93   DEFINE(L2X0_R_AUX_CTRL,	offsetof(struct l2x0_regs, aux_ctrl));
94   DEFINE(L2X0_R_TAG_LATENCY,	offsetof(struct l2x0_regs, tag_latency));
95   DEFINE(L2X0_R_DATA_LATENCY,	offsetof(struct l2x0_regs, data_latency));
96   DEFINE(L2X0_R_FILTER_START,	offsetof(struct l2x0_regs, filter_start));
97   DEFINE(L2X0_R_FILTER_END,	offsetof(struct l2x0_regs, filter_end));
98   DEFINE(L2X0_R_PREFETCH_CTRL,	offsetof(struct l2x0_regs, prefetch_ctrl));
99   DEFINE(L2X0_R_PWR_CTRL,	offsetof(struct l2x0_regs, pwr_ctrl));
100   BLANK();
101 #endif
102 #ifdef CONFIG_CPU_HAS_ASID
103   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
104   BLANK();
105 #endif
106   DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
107   DEFINE(VMA_VM_FLAGS,		offsetof(struct vm_area_struct, vm_flags));
108   BLANK();
109   DEFINE(VM_EXEC,	       	VM_EXEC);
110   BLANK();
111   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
112   BLANK();
113   DEFINE(SYS_ERROR0,		0x9f0000);
114   BLANK();
115   DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
116   DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
117   DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
118   BLANK();
119   DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
120   DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
121   DEFINE(PROCINFO_MM_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
122   DEFINE(PROCINFO_IO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_io_mmu_flags));
123   BLANK();
124 #ifdef MULTI_DABORT
125   DEFINE(PROCESSOR_DABT_FUNC,	offsetof(struct processor, _data_abort));
126 #endif
127 #ifdef MULTI_PABORT
128   DEFINE(PROCESSOR_PABT_FUNC,	offsetof(struct processor, _prefetch_abort));
129 #endif
130 #ifdef MULTI_CPU
131   DEFINE(CPU_SLEEP_SIZE,	offsetof(struct processor, suspend_size));
132   DEFINE(CPU_DO_SUSPEND,	offsetof(struct processor, do_suspend));
133   DEFINE(CPU_DO_RESUME,		offsetof(struct processor, do_resume));
134 #endif
135 #ifdef MULTI_CACHE
136   DEFINE(CACHE_FLUSH_KERN_ALL,	offsetof(struct cpu_cache_fns, flush_kern_all));
137 #endif
138 #ifdef CONFIG_ARM_CPU_SUSPEND
139   DEFINE(SLEEP_SAVE_SP_SZ,	sizeof(struct sleep_save_sp));
140   DEFINE(SLEEP_SAVE_SP_PHYS,	offsetof(struct sleep_save_sp, save_ptr_stash_phys));
141   DEFINE(SLEEP_SAVE_SP_VIRT,	offsetof(struct sleep_save_sp, save_ptr_stash));
142 #endif
143   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,	offsetof(struct arm_smccc_quirk, id));
144   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,	offsetof(struct arm_smccc_quirk, state));
145   BLANK();
146   DEFINE(DMA_BIDIRECTIONAL,	DMA_BIDIRECTIONAL);
147   DEFINE(DMA_TO_DEVICE,		DMA_TO_DEVICE);
148   DEFINE(DMA_FROM_DEVICE,	DMA_FROM_DEVICE);
149   BLANK();
150   DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER);
151   DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE);
152   BLANK();
153 #ifdef CONFIG_VDSO
154   DEFINE(VDSO_DATA_SIZE,	sizeof(union vdso_data_store));
155 #endif
156   BLANK();
157 #ifdef CONFIG_ARM_MPU
158   DEFINE(MPU_RNG_INFO_RNGS,	offsetof(struct mpu_rgn_info, rgns));
159   DEFINE(MPU_RNG_INFO_USED,	offsetof(struct mpu_rgn_info, used));
160 
161   DEFINE(MPU_RNG_SIZE,		sizeof(struct mpu_rgn));
162   DEFINE(MPU_RGN_DRBAR,	offsetof(struct mpu_rgn, drbar));
163   DEFINE(MPU_RGN_DRSR,	offsetof(struct mpu_rgn, drsr));
164   DEFINE(MPU_RGN_DRACR,	offsetof(struct mpu_rgn, dracr));
165   DEFINE(MPU_RGN_PRBAR,	offsetof(struct mpu_rgn, prbar));
166   DEFINE(MPU_RGN_PRLAR,	offsetof(struct mpu_rgn, prlar));
167 #endif
168   DEFINE(KEXEC_START_ADDR,	offsetof(struct kexec_relocate_data, kexec_start_address));
169   DEFINE(KEXEC_INDIR_PAGE,	offsetof(struct kexec_relocate_data, kexec_indirection_page));
170   DEFINE(KEXEC_MACH_TYPE,	offsetof(struct kexec_relocate_data, kexec_mach_type));
171   DEFINE(KEXEC_R2,		offsetof(struct kexec_relocate_data, kexec_r2));
172   return 0;
173 }
174