xref: /openbmc/linux/arch/arm/kernel/asm-offsets.c (revision f4c3b83b)
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/glue-df.h>
16 #include <asm/glue-pf.h>
17 #include <asm/mach/arch.h>
18 #include <asm/thread_info.h>
19 #include <asm/memory.h>
20 #include <asm/mpu.h>
21 #include <asm/procinfo.h>
22 #include <asm/suspend.h>
23 #include <asm/vdso_datapage.h>
24 #include <asm/hardware/cache-l2x0.h>
25 #include <linux/kbuild.h>
26 #include "signal.h"
27 
28 /*
29  * Make sure that the compiler and target are compatible.
30  */
31 #if defined(__APCS_26__)
32 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
33 #endif
34 
35 int main(void)
36 {
37   DEFINE(TSK_ACTIVE_MM,		offsetof(struct task_struct, active_mm));
38 #ifdef CONFIG_STACKPROTECTOR
39   DEFINE(TSK_STACK_CANARY,	offsetof(struct task_struct, stack_canary));
40 #endif
41   BLANK();
42   DEFINE(TI_FLAGS,		offsetof(struct thread_info, flags));
43   DEFINE(TI_PREEMPT,		offsetof(struct thread_info, preempt_count));
44   DEFINE(TI_ADDR_LIMIT,		offsetof(struct thread_info, addr_limit));
45   DEFINE(TI_TASK,		offsetof(struct thread_info, task));
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_USED_CP,		offsetof(struct thread_info, used_cp));
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 #ifdef CONFIG_ARM_THUMBEE
59   DEFINE(TI_THUMBEE_STATE,	offsetof(struct thread_info, thumbee_state));
60 #endif
61 #ifdef CONFIG_IWMMXT
62   DEFINE(TI_IWMMXT_STATE,	offsetof(struct thread_info, fpstate.iwmmxt));
63 #endif
64 #ifdef CONFIG_CRUNCH
65   DEFINE(TI_CRUNCH_STATE,	offsetof(struct thread_info, crunchstate));
66 #endif
67 #ifdef CONFIG_STACKPROTECTOR_PER_TASK
68   DEFINE(TI_STACK_CANARY,	offsetof(struct thread_info, stack_canary));
69 #endif
70   DEFINE(THREAD_SZ_ORDER,	THREAD_SIZE_ORDER);
71   BLANK();
72   DEFINE(S_R0,			offsetof(struct pt_regs, ARM_r0));
73   DEFINE(S_R1,			offsetof(struct pt_regs, ARM_r1));
74   DEFINE(S_R2,			offsetof(struct pt_regs, ARM_r2));
75   DEFINE(S_R3,			offsetof(struct pt_regs, ARM_r3));
76   DEFINE(S_R4,			offsetof(struct pt_regs, ARM_r4));
77   DEFINE(S_R5,			offsetof(struct pt_regs, ARM_r5));
78   DEFINE(S_R6,			offsetof(struct pt_regs, ARM_r6));
79   DEFINE(S_R7,			offsetof(struct pt_regs, ARM_r7));
80   DEFINE(S_R8,			offsetof(struct pt_regs, ARM_r8));
81   DEFINE(S_R9,			offsetof(struct pt_regs, ARM_r9));
82   DEFINE(S_R10,			offsetof(struct pt_regs, ARM_r10));
83   DEFINE(S_FP,			offsetof(struct pt_regs, ARM_fp));
84   DEFINE(S_IP,			offsetof(struct pt_regs, ARM_ip));
85   DEFINE(S_SP,			offsetof(struct pt_regs, ARM_sp));
86   DEFINE(S_LR,			offsetof(struct pt_regs, ARM_lr));
87   DEFINE(S_PC,			offsetof(struct pt_regs, ARM_pc));
88   DEFINE(S_PSR,			offsetof(struct pt_regs, ARM_cpsr));
89   DEFINE(S_OLD_R0,		offsetof(struct pt_regs, ARM_ORIG_r0));
90   DEFINE(PT_REGS_SIZE,		sizeof(struct pt_regs));
91   DEFINE(SVC_DACR,		offsetof(struct svc_pt_regs, dacr));
92   DEFINE(SVC_ADDR_LIMIT,	offsetof(struct svc_pt_regs, addr_limit));
93   DEFINE(SVC_REGS_SIZE,		sizeof(struct svc_pt_regs));
94   BLANK();
95   DEFINE(SIGFRAME_RC3_OFFSET,	offsetof(struct sigframe, retcode[3]));
96   DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3]));
97   BLANK();
98 #ifdef CONFIG_CACHE_L2X0
99   DEFINE(L2X0_R_PHY_BASE,	offsetof(struct l2x0_regs, phy_base));
100   DEFINE(L2X0_R_AUX_CTRL,	offsetof(struct l2x0_regs, aux_ctrl));
101   DEFINE(L2X0_R_TAG_LATENCY,	offsetof(struct l2x0_regs, tag_latency));
102   DEFINE(L2X0_R_DATA_LATENCY,	offsetof(struct l2x0_regs, data_latency));
103   DEFINE(L2X0_R_FILTER_START,	offsetof(struct l2x0_regs, filter_start));
104   DEFINE(L2X0_R_FILTER_END,	offsetof(struct l2x0_regs, filter_end));
105   DEFINE(L2X0_R_PREFETCH_CTRL,	offsetof(struct l2x0_regs, prefetch_ctrl));
106   DEFINE(L2X0_R_PWR_CTRL,	offsetof(struct l2x0_regs, pwr_ctrl));
107   BLANK();
108 #endif
109 #ifdef CONFIG_CPU_HAS_ASID
110   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
111   BLANK();
112 #endif
113   DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
114   DEFINE(VMA_VM_FLAGS,		offsetof(struct vm_area_struct, vm_flags));
115   BLANK();
116   DEFINE(VM_EXEC,	       	VM_EXEC);
117   BLANK();
118   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
119   BLANK();
120   DEFINE(SYS_ERROR0,		0x9f0000);
121   BLANK();
122   DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
123   DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
124   DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
125   BLANK();
126   DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
127   DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
128   DEFINE(PROCINFO_MM_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
129   DEFINE(PROCINFO_IO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_io_mmu_flags));
130   BLANK();
131 #ifdef MULTI_DABORT
132   DEFINE(PROCESSOR_DABT_FUNC,	offsetof(struct processor, _data_abort));
133 #endif
134 #ifdef MULTI_PABORT
135   DEFINE(PROCESSOR_PABT_FUNC,	offsetof(struct processor, _prefetch_abort));
136 #endif
137 #ifdef MULTI_CPU
138   DEFINE(CPU_SLEEP_SIZE,	offsetof(struct processor, suspend_size));
139   DEFINE(CPU_DO_SUSPEND,	offsetof(struct processor, do_suspend));
140   DEFINE(CPU_DO_RESUME,		offsetof(struct processor, do_resume));
141 #endif
142 #ifdef MULTI_CACHE
143   DEFINE(CACHE_FLUSH_KERN_ALL,	offsetof(struct cpu_cache_fns, flush_kern_all));
144 #endif
145 #ifdef CONFIG_ARM_CPU_SUSPEND
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   BLANK();
151   DEFINE(DMA_BIDIRECTIONAL,	DMA_BIDIRECTIONAL);
152   DEFINE(DMA_TO_DEVICE,		DMA_TO_DEVICE);
153   DEFINE(DMA_FROM_DEVICE,	DMA_FROM_DEVICE);
154   BLANK();
155   DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER);
156   DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE);
157   BLANK();
158 #ifdef CONFIG_VDSO
159   DEFINE(VDSO_DATA_SIZE,	sizeof(union vdso_data_store));
160 #endif
161   BLANK();
162 #ifdef CONFIG_ARM_MPU
163   DEFINE(MPU_RNG_INFO_RNGS,	offsetof(struct mpu_rgn_info, rgns));
164   DEFINE(MPU_RNG_INFO_USED,	offsetof(struct mpu_rgn_info, used));
165 
166   DEFINE(MPU_RNG_SIZE,		sizeof(struct mpu_rgn));
167   DEFINE(MPU_RGN_DRBAR,	offsetof(struct mpu_rgn, drbar));
168   DEFINE(MPU_RGN_DRSR,	offsetof(struct mpu_rgn, drsr));
169   DEFINE(MPU_RGN_DRACR,	offsetof(struct mpu_rgn, dracr));
170   DEFINE(MPU_RGN_PRBAR,	offsetof(struct mpu_rgn, prbar));
171   DEFINE(MPU_RGN_PRLAR,	offsetof(struct mpu_rgn, prlar));
172 #endif
173   return 0;
174 }
175