xref: /openbmc/linux/arch/arm/kernel/asm-offsets.c (revision 8938c48f)
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/memory.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 "signal.h"
28 
29 /*
30  * Make sure that the compiler and target are compatible.
31  */
32 #if defined(__APCS_26__)
33 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
34 #endif
35 
36 int main(void)
37 {
38   DEFINE(TSK_ACTIVE_MM,		offsetof(struct task_struct, active_mm));
39 #ifdef CONFIG_STACKPROTECTOR
40   DEFINE(TSK_STACK_CANARY,	offsetof(struct task_struct, stack_canary));
41 #endif
42   BLANK();
43   DEFINE(TI_FLAGS,		offsetof(struct thread_info, flags));
44   DEFINE(TI_PREEMPT,		offsetof(struct thread_info, preempt_count));
45   DEFINE(TI_ADDR_LIMIT,		offsetof(struct thread_info, addr_limit));
46   DEFINE(TI_TASK,		offsetof(struct thread_info, task));
47   DEFINE(TI_CPU,		offsetof(struct thread_info, cpu));
48   DEFINE(TI_CPU_DOMAIN,		offsetof(struct thread_info, cpu_domain));
49   DEFINE(TI_CPU_SAVE,		offsetof(struct thread_info, cpu_context));
50   DEFINE(TI_USED_CP,		offsetof(struct thread_info, used_cp));
51   DEFINE(TI_TP_VALUE,		offsetof(struct thread_info, tp_value));
52   DEFINE(TI_FPSTATE,		offsetof(struct thread_info, fpstate));
53 #ifdef CONFIG_VFP
54   DEFINE(TI_VFPSTATE,		offsetof(struct thread_info, vfpstate));
55 #ifdef CONFIG_SMP
56   DEFINE(VFP_CPU,		offsetof(union vfp_state, hard.cpu));
57 #endif
58 #endif
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 #ifdef CONFIG_CRUNCH
66   DEFINE(TI_CRUNCH_STATE,	offsetof(struct thread_info, crunchstate));
67 #endif
68 #ifdef CONFIG_STACKPROTECTOR_PER_TASK
69   DEFINE(TI_STACK_CANARY,	offsetof(struct thread_info, stack_canary));
70 #endif
71   DEFINE(THREAD_SZ_ORDER,	THREAD_SIZE_ORDER);
72   BLANK();
73   DEFINE(S_R0,			offsetof(struct pt_regs, ARM_r0));
74   DEFINE(S_R1,			offsetof(struct pt_regs, ARM_r1));
75   DEFINE(S_R2,			offsetof(struct pt_regs, ARM_r2));
76   DEFINE(S_R3,			offsetof(struct pt_regs, ARM_r3));
77   DEFINE(S_R4,			offsetof(struct pt_regs, ARM_r4));
78   DEFINE(S_R5,			offsetof(struct pt_regs, ARM_r5));
79   DEFINE(S_R6,			offsetof(struct pt_regs, ARM_r6));
80   DEFINE(S_R7,			offsetof(struct pt_regs, ARM_r7));
81   DEFINE(S_R8,			offsetof(struct pt_regs, ARM_r8));
82   DEFINE(S_R9,			offsetof(struct pt_regs, ARM_r9));
83   DEFINE(S_R10,			offsetof(struct pt_regs, ARM_r10));
84   DEFINE(S_FP,			offsetof(struct pt_regs, ARM_fp));
85   DEFINE(S_IP,			offsetof(struct pt_regs, ARM_ip));
86   DEFINE(S_SP,			offsetof(struct pt_regs, ARM_sp));
87   DEFINE(S_LR,			offsetof(struct pt_regs, ARM_lr));
88   DEFINE(S_PC,			offsetof(struct pt_regs, ARM_pc));
89   DEFINE(S_PSR,			offsetof(struct pt_regs, ARM_cpsr));
90   DEFINE(S_OLD_R0,		offsetof(struct pt_regs, ARM_ORIG_r0));
91   DEFINE(PT_REGS_SIZE,		sizeof(struct pt_regs));
92   DEFINE(SVC_DACR,		offsetof(struct svc_pt_regs, dacr));
93   DEFINE(SVC_ADDR_LIMIT,	offsetof(struct svc_pt_regs, addr_limit));
94   DEFINE(SVC_REGS_SIZE,		sizeof(struct svc_pt_regs));
95   BLANK();
96   DEFINE(SIGFRAME_RC3_OFFSET,	offsetof(struct sigframe, retcode[3]));
97   DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3]));
98   BLANK();
99 #ifdef CONFIG_CACHE_L2X0
100   DEFINE(L2X0_R_PHY_BASE,	offsetof(struct l2x0_regs, phy_base));
101   DEFINE(L2X0_R_AUX_CTRL,	offsetof(struct l2x0_regs, aux_ctrl));
102   DEFINE(L2X0_R_TAG_LATENCY,	offsetof(struct l2x0_regs, tag_latency));
103   DEFINE(L2X0_R_DATA_LATENCY,	offsetof(struct l2x0_regs, data_latency));
104   DEFINE(L2X0_R_FILTER_START,	offsetof(struct l2x0_regs, filter_start));
105   DEFINE(L2X0_R_FILTER_END,	offsetof(struct l2x0_regs, filter_end));
106   DEFINE(L2X0_R_PREFETCH_CTRL,	offsetof(struct l2x0_regs, prefetch_ctrl));
107   DEFINE(L2X0_R_PWR_CTRL,	offsetof(struct l2x0_regs, pwr_ctrl));
108   BLANK();
109 #endif
110 #ifdef CONFIG_CPU_HAS_ASID
111   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
112   BLANK();
113 #endif
114   DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
115   DEFINE(VMA_VM_FLAGS,		offsetof(struct vm_area_struct, vm_flags));
116   BLANK();
117   DEFINE(VM_EXEC,	       	VM_EXEC);
118   BLANK();
119   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
120   BLANK();
121   DEFINE(SYS_ERROR0,		0x9f0000);
122   BLANK();
123   DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
124   DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
125   DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
126   BLANK();
127   DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
128   DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
129   DEFINE(PROCINFO_MM_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
130   DEFINE(PROCINFO_IO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_io_mmu_flags));
131   BLANK();
132 #ifdef MULTI_DABORT
133   DEFINE(PROCESSOR_DABT_FUNC,	offsetof(struct processor, _data_abort));
134 #endif
135 #ifdef MULTI_PABORT
136   DEFINE(PROCESSOR_PABT_FUNC,	offsetof(struct processor, _prefetch_abort));
137 #endif
138 #ifdef MULTI_CPU
139   DEFINE(CPU_SLEEP_SIZE,	offsetof(struct processor, suspend_size));
140   DEFINE(CPU_DO_SUSPEND,	offsetof(struct processor, do_suspend));
141   DEFINE(CPU_DO_RESUME,		offsetof(struct processor, do_resume));
142 #endif
143 #ifdef MULTI_CACHE
144   DEFINE(CACHE_FLUSH_KERN_ALL,	offsetof(struct cpu_cache_fns, flush_kern_all));
145 #endif
146 #ifdef CONFIG_ARM_CPU_SUSPEND
147   DEFINE(SLEEP_SAVE_SP_SZ,	sizeof(struct sleep_save_sp));
148   DEFINE(SLEEP_SAVE_SP_PHYS,	offsetof(struct sleep_save_sp, save_ptr_stash_phys));
149   DEFINE(SLEEP_SAVE_SP_VIRT,	offsetof(struct sleep_save_sp, save_ptr_stash));
150 #endif
151   BLANK();
152   DEFINE(DMA_BIDIRECTIONAL,	DMA_BIDIRECTIONAL);
153   DEFINE(DMA_TO_DEVICE,		DMA_TO_DEVICE);
154   DEFINE(DMA_FROM_DEVICE,	DMA_FROM_DEVICE);
155   BLANK();
156   DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER);
157   DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE);
158   BLANK();
159 #ifdef CONFIG_VDSO
160   DEFINE(VDSO_DATA_SIZE,	sizeof(union vdso_data_store));
161 #endif
162   BLANK();
163 #ifdef CONFIG_ARM_MPU
164   DEFINE(MPU_RNG_INFO_RNGS,	offsetof(struct mpu_rgn_info, rgns));
165   DEFINE(MPU_RNG_INFO_USED,	offsetof(struct mpu_rgn_info, used));
166 
167   DEFINE(MPU_RNG_SIZE,		sizeof(struct mpu_rgn));
168   DEFINE(MPU_RGN_DRBAR,	offsetof(struct mpu_rgn, drbar));
169   DEFINE(MPU_RGN_DRSR,	offsetof(struct mpu_rgn, drsr));
170   DEFINE(MPU_RGN_DRACR,	offsetof(struct mpu_rgn, dracr));
171   DEFINE(MPU_RGN_PRBAR,	offsetof(struct mpu_rgn, prbar));
172   DEFINE(MPU_RGN_PRLAR,	offsetof(struct mpu_rgn, prlar));
173 #endif
174   DEFINE(KEXEC_START_ADDR,	offsetof(struct kexec_relocate_data, kexec_start_address));
175   DEFINE(KEXEC_INDIR_PAGE,	offsetof(struct kexec_relocate_data, kexec_indirection_page));
176   DEFINE(KEXEC_MACH_TYPE,	offsetof(struct kexec_relocate_data, kexec_mach_type));
177   DEFINE(KEXEC_R2,		offsetof(struct kexec_relocate_data, kexec_r2));
178   return 0;
179 }
180