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-rw-r--r--arch/h8300/kernel/.gitignore2
-rw-r--r--arch/h8300/kernel/Makefile22
-rw-r--r--arch/h8300/kernel/asm-offsets.c70
-rw-r--r--arch/h8300/kernel/entry.S434
-rw-r--r--arch/h8300/kernel/h8300_ksyms.c35
-rw-r--r--arch/h8300/kernel/head_ram.S61
-rw-r--r--arch/h8300/kernel/head_rom.S111
-rw-r--r--arch/h8300/kernel/irq.c99
-rw-r--r--arch/h8300/kernel/kgdb.c135
-rw-r--r--arch/h8300/kernel/module.c71
-rw-r--r--arch/h8300/kernel/process.c173
-rw-r--r--arch/h8300/kernel/ptrace.c200
-rw-r--r--arch/h8300/kernel/ptrace_h.c256
-rw-r--r--arch/h8300/kernel/ptrace_s.c44
-rw-r--r--arch/h8300/kernel/setup.c213
-rw-r--r--arch/h8300/kernel/signal.c287
-rw-r--r--arch/h8300/kernel/sim-console.c31
-rw-r--r--arch/h8300/kernel/syscalls.c15
-rw-r--r--arch/h8300/kernel/traps.c156
-rw-r--r--arch/h8300/kernel/vmlinux.lds.S69
20 files changed, 0 insertions, 2484 deletions
diff --git a/arch/h8300/kernel/.gitignore b/arch/h8300/kernel/.gitignore
deleted file mode 100644
index bbb90f92d051..000000000000
--- a/arch/h8300/kernel/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-vmlinux.lds
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
deleted file mode 100644
index 307aa51576dd..000000000000
--- a/arch/h8300/kernel/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := vmlinux.lds
-
-obj-y := process.o traps.o ptrace.o \
- signal.o setup.o syscalls.o \
- irq.o entry.o
-
-obj-$(CONFIG_ROMKERNEL) += head_rom.o
-obj-$(CONFIG_RAMKERNEL) += head_ram.o
-
-obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o
-obj-$(CONFIG_H8300H_SIM) += sim-console.o
-obj-$(CONFIG_H8S_SIM) += sim-console.o
-
-obj-$(CONFIG_CPU_H8300H) += ptrace_h.o
-obj-$(CONFIG_CPU_H8S) += ptrace_s.o
-
-obj-$(CONFIG_KGDB) += kgdb.o
diff --git a/arch/h8300/kernel/asm-offsets.c b/arch/h8300/kernel/asm-offsets.c
deleted file mode 100644
index 65571ee15132..000000000000
--- a/arch/h8300/kernel/asm-offsets.c
+++ /dev/null
@@ -1,70 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/ptrace.h>
-#include <linux/hardirq.h>
-#include <linux/kbuild.h>
-#include <asm/irq.h>
-#include <asm/ptrace.h>
-
-int main(void)
-{
- /* offsets into the task struct */
- OFFSET(TASK_FLAGS, task_struct, flags);
- OFFSET(TASK_PTRACE, task_struct, ptrace);
- OFFSET(TASK_BLOCKED, task_struct, blocked);
- OFFSET(TASK_THREAD, task_struct, thread);
- OFFSET(TASK_THREAD_INFO, task_struct, stack);
- OFFSET(TASK_MM, task_struct, mm);
- OFFSET(TASK_ACTIVE_MM, task_struct, active_mm);
-
- /* offsets into the irq_cpustat_t struct */
- DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t,
- __softirq_pending));
-
- /* offsets into the thread struct */
- OFFSET(THREAD_KSP, thread_struct, ksp);
- OFFSET(THREAD_USP, thread_struct, usp);
- OFFSET(THREAD_CCR, thread_struct, ccr);
-
- /* offsets into the pt_regs struct */
- DEFINE(LER0, offsetof(struct pt_regs, er0) - sizeof(long));
- DEFINE(LER1, offsetof(struct pt_regs, er1) - sizeof(long));
- DEFINE(LER2, offsetof(struct pt_regs, er2) - sizeof(long));
- DEFINE(LER3, offsetof(struct pt_regs, er3) - sizeof(long));
- DEFINE(LER4, offsetof(struct pt_regs, er4) - sizeof(long));
- DEFINE(LER5, offsetof(struct pt_regs, er5) - sizeof(long));
- DEFINE(LER6, offsetof(struct pt_regs, er6) - sizeof(long));
- DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
- DEFINE(LSP, offsetof(struct pt_regs, sp) - sizeof(long));
- DEFINE(LCCR, offsetof(struct pt_regs, ccr) - sizeof(long));
- DEFINE(LVEC, offsetof(struct pt_regs, vector) - sizeof(long));
-#if defined(CONFIG_CPU_H8S)
- DEFINE(LEXR, offsetof(struct pt_regs, exr) - sizeof(long));
-#endif
- DEFINE(LRET, offsetof(struct pt_regs, pc) - sizeof(long));
-
- DEFINE(PT_PTRACED, PT_PTRACED);
-
- /* offsets in thread_info structure */
- OFFSET(TI_TASK, thread_info, task);
- OFFSET(TI_FLAGS, thread_info, flags);
- OFFSET(TI_CPU, thread_info, cpu);
- OFFSET(TI_PRE, thread_info, preempt_count);
-#ifdef CONFIG_PREEMPTION
- DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
-#endif
-
- return 0;
-}
diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
deleted file mode 100644
index c6e289b5f1f2..000000000000
--- a/arch/h8300/kernel/entry.S
+++ /dev/null
@@ -1,434 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *
- * linux/arch/h8300/kernel/entry.S
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- * David McCullough <davidm@snapgear.com>
- *
- */
-
-/*
- * entry.S
- * include exception/interrupt gateway
- * system call entry
- */
-
-#include <linux/sys.h>
-#include <asm/unistd.h>
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/errno.h>
-
-#if defined(CONFIG_CPU_H8300H)
-#define USERRET 8
-INTERRUPTS = 64
- .h8300h
- .macro SHLL2 reg
- shll.l \reg
- shll.l \reg
- .endm
- .macro SHLR2 reg
- shlr.l \reg
- shlr.l \reg
- .endm
- .macro SAVEREGS
- mov.l er0,@-sp
- mov.l er1,@-sp
- mov.l er2,@-sp
- mov.l er3,@-sp
- .endm
- .macro RESTOREREGS
- mov.l @sp+,er3
- mov.l @sp+,er2
- .endm
- .macro SAVEEXR
- .endm
- .macro RESTOREEXR
- .endm
-#endif
-#if defined(CONFIG_CPU_H8S)
-#define USERRET 10
-#define USEREXR 8
-INTERRUPTS = 128
- .h8300s
- .macro SHLL2 reg
- shll.l #2,\reg
- .endm
- .macro SHLR2 reg
- shlr.l #2,\reg
- .endm
- .macro SAVEREGS
- stm.l er0-er3,@-sp
- .endm
- .macro RESTOREREGS
- ldm.l @sp+,er2-er3
- .endm
- .macro SAVEEXR
- mov.w @(USEREXR:16,er0),r1
- mov.w r1,@(LEXR-LER3:16,sp) /* copy EXR */
- .endm
- .macro RESTOREEXR
- mov.w @(LEXR-LER1:16,sp),r1 /* restore EXR */
- mov.b r1l,r1h
- mov.w r1,@(USEREXR:16,er0)
- .endm
-#endif
-
-
-/* CPU context save/restore macros. */
-
- .macro SAVE_ALL
- mov.l er0,@-sp
- stc ccr,r0l /* check kernel mode */
- btst #4,r0l
- bne 5f
-
- /* user mode */
- mov.l sp,@_sw_usp
- mov.l @sp,er0 /* restore saved er0 */
- orc #0x10,ccr /* switch kernel stack */
- mov.l @_sw_ksp,sp
- sub.l #(LRET-LORIG),sp /* allocate LORIG - LRET */
- SAVEREGS
- mov.l @_sw_usp,er0
- mov.l @(USERRET:16,er0),er1 /* copy the RET addr */
- mov.l er1,@(LRET-LER3:16,sp)
- SAVEEXR
-
- mov.l @(LORIG-LER3:16,sp),er0
- mov.l er0,@(LER0-LER3:16,sp) /* copy ER0 */
- mov.w e1,r1 /* e1 highbyte = ccr */
- and #0xef,r1h /* mask mode? flag */
- bra 6f
-5:
- /* kernel mode */
- mov.l @sp,er0 /* restore saved er0 */
- subs #2,sp /* set dummy ccr */
- subs #4,sp /* set dummp sp */
- SAVEREGS
- mov.w @(LRET-LER3:16,sp),r1 /* copy old ccr */
-6:
- mov.b r1h,r1l
- mov.b #0,r1h
- mov.w r1,@(LCCR-LER3:16,sp) /* set ccr */
- mov.l @_sw_usp,er2
- mov.l er2,@(LSP-LER3:16,sp) /* set usp */
- mov.l er6,@-sp /* syscall arg #6 */
- mov.l er5,@-sp /* syscall arg #5 */
- mov.l er4,@-sp /* syscall arg #4 */
- .endm /* r1 = ccr */
-
- .macro RESTORE_ALL
- mov.l @sp+,er4
- mov.l @sp+,er5
- mov.l @sp+,er6
- RESTOREREGS
- mov.w @(LCCR-LER1:16,sp),r0 /* check kernel mode */
- btst #4,r0l
- bne 7f
-
- orc #0xc0,ccr
- mov.l @(LSP-LER1:16,sp),er0
- mov.l @(LER0-LER1:16,sp),er1 /* restore ER0 */
- mov.l er1,@er0
- RESTOREEXR
- mov.w @(LCCR-LER1:16,sp),r1 /* restore the RET addr */
- mov.b r1l,r1h
- mov.b @(LRET+1-LER1:16,sp),r1l
- mov.w r1,e1
- mov.w @(LRET+2-LER1:16,sp),r1
- mov.l er1,@(USERRET:16,er0)
-
- mov.l @sp+,er1
- add.l #(LRET-LER1),sp /* remove LORIG - LRET */
- mov.l sp,@_sw_ksp
- andc #0xef,ccr /* switch to user mode */
- mov.l er0,sp
- bra 8f
-7:
- mov.l @sp+,er1
- add.l #10,sp
-8:
- mov.l @sp+,er0
- adds #4,sp /* remove the sw created LVEC */
- rte
- .endm
-
-.globl _system_call
-.globl ret_from_exception
-.globl ret_from_fork
-.globl ret_from_kernel_thread
-.globl ret_from_interrupt
-.globl _interrupt_redirect_table
-.globl _sw_ksp,_sw_usp
-.globl _resume
-.globl _interrupt_entry
-.globl _trace_break
-.globl _nmi
-
-#if defined(CONFIG_ROMKERNEL)
- .section .int_redirect,"ax"
-_interrupt_redirect_table:
-#if defined(CONFIG_CPU_H8300H)
- .rept 7
- .long 0
- .endr
-#endif
-#if defined(CONFIG_CPU_H8S)
- .rept 5
- .long 0
- .endr
- jmp @_trace_break
- .long 0
-#endif
-
- jsr @_interrupt_entry /* NMI */
- jmp @_system_call /* TRAPA #0 (System call) */
- .long 0
-#if defined(CONFIG_KGDB)
- jmp @_kgdb_trap
-#else
- .long 0
-#endif
- jmp @_trace_break /* TRAPA #3 (breakpoint) */
- .rept INTERRUPTS-12
- jsr @_interrupt_entry
- .endr
-#endif
-#if defined(CONFIG_RAMKERNEL)
-.globl _interrupt_redirect_table
- .section .bss
-_interrupt_redirect_table:
- .space 4
-#endif
-
- .section .text
- .align 2
-_interrupt_entry:
- SAVE_ALL
-/* r1l is saved ccr */
- mov.l sp,er0
- add.l #LVEC,er0
- btst #4,r1l
- bne 1f
- /* user LVEC */
- mov.l @_sw_usp,er0
- adds #4,er0
-1:
- mov.l @er0,er0 /* LVEC address */
-#if defined(CONFIG_ROMKERNEL)
- sub.l #_interrupt_redirect_table,er0
-#endif
-#if defined(CONFIG_RAMKERNEL)
- mov.l @_interrupt_redirect_table,er1
- sub.l er1,er0
-#endif
- SHLR2 er0
- dec.l #1,er0
- mov.l sp,er1
- subs #4,er1 /* adjust ret_pc */
-#if defined(CONFIG_CPU_H8S)
- orc #7,exr
-#endif
- jsr @do_IRQ
- jmp @ret_from_interrupt
-
-_system_call:
- subs #4,sp /* dummy LVEC */
- SAVE_ALL
- /* er0: syscall nr */
- andc #0xbf,ccr
- mov.l er0,er4
-
- /* save top of frame */
- mov.l sp,er0
- jsr @set_esp0
- andc #0x3f,ccr
- mov.l sp,er2
- and.w #0xe000,r2
- mov.l @(TI_FLAGS:16,er2),er2
- and.w #_TIF_WORK_SYSCALL_MASK,r2
- beq 1f
- mov.l sp,er0
- jsr @do_syscall_trace_enter
-1:
- cmp.l #__NR_syscalls,er4
- bcc badsys
- SHLL2 er4
- mov.l #_sys_call_table,er0
- add.l er4,er0
- mov.l @er0,er4
- beq ret_from_exception:16
- mov.l @(LER1:16,sp),er0
- mov.l @(LER2:16,sp),er1
- mov.l @(LER3:16,sp),er2
- jsr @er4
- mov.l er0,@(LER0:16,sp) /* save the return value */
- mov.l sp,er2
- and.w #0xe000,r2
- mov.l @(TI_FLAGS:16,er2),er2
- and.w #_TIF_WORK_SYSCALL_MASK,r2
- beq 2f
- mov.l sp,er0
- jsr @do_syscall_trace_leave
-2:
- orc #0xc0,ccr
- bra resume_userspace
-
-badsys:
- mov.l #-ENOSYS,er0
- mov.l er0,@(LER0:16,sp)
- bra resume_userspace
-
-#if !defined(CONFIG_PREEMPTION)
-#define resume_kernel restore_all
-#endif
-
-ret_from_exception:
-#if defined(CONFIG_PREEMPTION)
- orc #0xc0,ccr
-#endif
-ret_from_interrupt:
- mov.b @(LCCR+1:16,sp),r0l
- btst #4,r0l
- bne resume_kernel:16 /* return from kernel */
-resume_userspace:
- andc #0xbf,ccr
- mov.l sp,er4
- and.w #0xe000,r4 /* er4 <- current thread info */
- mov.l @(TI_FLAGS:16,er4),er1
- and.l #_TIF_WORK_MASK,er1
- beq restore_all:8
-work_pending:
- btst #TIF_NEED_RESCHED,r1l
- bne work_resched:8
- /* work notifysig */
- mov.l sp,er0
- subs #4,er0 /* er0: pt_regs */
- jsr @do_notify_resume
- bra resume_userspace:8
-work_resched:
- mov.l sp,er0
- jsr @set_esp0
- jsr @schedule
- bra resume_userspace:8
-restore_all:
- RESTORE_ALL /* Does RTE */
-
-#if defined(CONFIG_PREEMPTION)
-resume_kernel:
- mov.l @(TI_PRE_COUNT:16,er4),er0
- bne restore_all:8
-need_resched:
- mov.l @(TI_FLAGS:16,er4),er0
- btst #TIF_NEED_RESCHED,r0l
- beq restore_all:8
- mov.b @(LCCR+1:16,sp),r0l /* Interrupt Enabled? */
- bmi restore_all:8
- mov.l sp,er0
- jsr @set_esp0
- jsr @preempt_schedule_irq
- bra need_resched:8
-#endif
-
-ret_from_fork:
- mov.l er2,er0
- jsr @schedule_tail
- jmp @ret_from_exception
-
-ret_from_kernel_thread:
- mov.l er2,er0
- jsr @schedule_tail
- mov.l @(LER4:16,sp),er0
- mov.l @(LER5:16,sp),er1
- jsr @er1
- jmp @ret_from_exception
-
-_resume:
- /*
- * Beware - when entering resume, offset of tss is in d1,
- * prev (the current task) is in a0, next (the new task)
- * is in a1 and d2.b is non-zero if the mm structure is
- * shared between the tasks, so don't change these
- * registers until their contents are no longer needed.
- */
-
- /* save sr */
- sub.w r3,r3
- stc ccr,r3l
- mov.w r3,@(THREAD_CCR+2:16,er0)
-
- /* disable interrupts */
- orc #0xc0,ccr
- mov.l @_sw_usp,er3
- mov.l er3,@(THREAD_USP:16,er0)
- mov.l sp,@(THREAD_KSP:16,er0)
-
- /* Skip address space switching if they are the same. */
- /* FIXME: what did we hack out of here, this does nothing! */
-
- mov.l @(THREAD_USP:16,er1),er0
- mov.l er0,@_sw_usp
- mov.l @(THREAD_KSP:16,er1),sp
-
- /* restore status register */
- mov.w @(THREAD_CCR+2:16,er1),r3
-
- ldc r3l,ccr
- rts
-
-_trace_break:
- subs #4,sp
- SAVE_ALL
- sub.l er1,er1
- dec.l #1,er1
- mov.l er1,@(LORIG,sp)
- mov.l sp,er0
- jsr @set_esp0
- mov.l @_sw_usp,er0
- mov.l @er0,er1
- mov.w @(-2:16,er1),r2
- cmp.w #0x5730,r2
- beq 1f
- subs #2,er1
- mov.l er1,@er0
-1:
- and.w #0xff,e1
- mov.l er1,er0
- jsr @trace_trap
- jmp @ret_from_exception
-
-_nmi:
- subs #4, sp
- mov.l er0, @-sp
- mov.l @_interrupt_redirect_table, er0
- add.l #8*4, er0
- mov.l er0, @(4,sp)
- mov.l @sp+, er0
- jmp @_interrupt_entry
-
-#if defined(CONFIG_KGDB)
-_kgdb_trap:
- subs #4,sp
- SAVE_ALL
- mov.l sp,er0
- add.l #LRET,er0
- mov.l er0,@(LSP,sp)
- jsr @set_esp0
- mov.l sp,er0
- subs #4,er0
- jsr @h8300_kgdb_trap
- jmp @ret_from_exception
-#endif
-
- .section .bss
-_sw_ksp:
- .space 4
-_sw_usp:
- .space 4
-
- .end
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
deleted file mode 100644
index 853d6e886477..000000000000
--- a/arch/h8300/kernel/h8300_ksyms.c
+++ /dev/null
@@ -1,35 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/module.h>
-#include <linux/linkage.h>
-
-/*
- * libgcc functions - functions that are used internally by the
- * compiler... (prototypes are not correct though, but that
- * doesn't really matter since they're not versioned).
- */
-asmlinkage long __ucmpdi2(long long, long long);
-asmlinkage long long __ashldi3(long long, int);
-asmlinkage long long __ashrdi3(long long, int);
-asmlinkage long long __lshrdi3(long long, int);
-asmlinkage long __divsi3(long, long);
-asmlinkage long __modsi3(long, long);
-asmlinkage unsigned long __umodsi3(unsigned long, unsigned long);
-asmlinkage long long __muldi3(long long, long long);
-asmlinkage long __mulsi3(long, long);
-asmlinkage long __udivsi3(long, long);
-asmlinkage void *memcpy(void *, const void *, size_t);
-asmlinkage void *memset(void *, int, size_t);
-
- /* gcc lib functions */
-EXPORT_SYMBOL(__ucmpdi2);
-EXPORT_SYMBOL(__ashldi3);
-EXPORT_SYMBOL(__ashrdi3);
-EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(__divsi3);
-EXPORT_SYMBOL(__modsi3);
-EXPORT_SYMBOL(__umodsi3);
-EXPORT_SYMBOL(__muldi3);
-EXPORT_SYMBOL(__mulsi3);
-EXPORT_SYMBOL(__udivsi3);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
diff --git a/arch/h8300/kernel/head_ram.S b/arch/h8300/kernel/head_ram.S
deleted file mode 100644
index dbf8429f5fab..000000000000
--- a/arch/h8300/kernel/head_ram.S
+++ /dev/null
@@ -1,61 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#include <linux/sys.h>
-#include <linux/init.h>
-#include <asm/unistd.h>
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/errno.h>
-
-#if defined(CONFIG_CPU_H8300H)
- .h8300h
-#define SYSCR 0xfee012
-#define IRAMTOP 0xffff20
-#endif
-#if defined(CONFIG_CPU_H8S)
- .h8300s
-#define INTCR 0xffff31
-#define IRAMTOP 0xffc000
-#endif
-
- __HEAD
- .global _start
-_start:
- mov.l #IRAMTOP,sp
- /* .bss clear */
- mov.l #_sbss,er5
- mov.l #_ebss,er4
- sub.l er5,er4
- shlr er4
- shlr er4
- sub.l er2,er2
-1:
- mov.l er2,@er5
- adds #4,er5
- dec.l #1,er4
- bne 1b
- jsr @h8300_fdt_init
-
- /* linux kernel start */
-#if defined(CONFIG_CPU_H8300H)
- ldc #0xd0,ccr /* running kernel */
- mov.l #SYSCR,er0
- bclr #3,@er0
-#endif
-#if defined(CONFIG_CPU_H8S)
- ldc #0x07,exr
- bclr #4,@INTCR:8
- bset #5,@INTCR:8 /* Interrupt mode 2 */
- ldc #0x90,ccr /* running kernel */
-#endif
- mov.l #init_thread_union,sp
- add.l #0x2000,sp
- jsr @start_kernel
-
-1:
- bra 1b
-
- .end
diff --git a/arch/h8300/kernel/head_rom.S b/arch/h8300/kernel/head_rom.S
deleted file mode 100644
index ab55a9cb2f36..000000000000
--- a/arch/h8300/kernel/head_rom.S
+++ /dev/null
@@ -1,111 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/init.h>
-#include <asm/thread_info.h>
-
-#if defined(CONFIG_CPU_H8300H)
- .h8300h
-#define SYSCR 0xfee012
-#define IRAMTOP 0xffff20
-#define NR_INT 64
-#endif
-#if defined(CONFIG_CPU_H8S)
- .h8300s
-#define INTCR 0xffff31
-#define IRAMTOP 0xffc000
-#define NR_INT 128
-#endif
-
- __HEAD
- .global _start
-_start:
- mov.l #IRAMTOP,sp
-#if !defined(CONFIG_H8300H_SIM) && \
- !defined(CONFIG_H8S_SIM)
- jsr @lowlevel_init
-
- /* copy .data */
- mov.l #_begin_data,er5
- mov.l #_sdata,er6
- mov.l #_edata,er4
- sub.l er6,er4
- shlr.l er4
- shlr.l er4
-1:
- mov.l @er5+,er0
- mov.l er0,@er6
- adds #4,er6
- dec.l #1,er4
- bne 1b
- /* .bss clear */
- mov.l #_sbss,er5
- mov.l #_ebss,er4
- sub.l er5,er4
- shlr er4
- shlr er4
- sub.l er0,er0
-1:
- mov.l er0,@er5
- adds #4,er5
- dec.l #1,er4
- bne 1b
-#else
- /* get cmdline from gdb */
- jsr @0xcc
- ;; er0 - argc
- ;; er1 - argv
- mov.l #command_line,er3
- adds #4,er1
- dec.l #1,er0
- beq 4f
-1:
- mov.l @er1+,er2
-2:
- mov.b @er2+,r4l
- beq 3f
- mov.b r4l,@er3
- adds #1,er3
- bra 2b
-3:
- mov.b #' ',r4l
- mov.b r4l,@er3
- adds #1,er3
- dec.l #1,er0
- bne 1b
- subs #1,er3
- mov.b #0,r4l
- mov.b r4l,@er3
-4:
-#endif
- sub.l er0,er0
- jsr @h8300_fdt_init
- /* linux kernel start */
-#if defined(CONFIG_CPU_H8300H)
- ldc #0xd0,ccr /* running kernel */
- mov.l #SYSCR,er0
- bclr #3,@er0
-#endif
-#if defined(CONFIG_CPU_H8S)
- ldc #0x07,exr
- bclr #4,@INTCR:8
- bset #5,@INTCR:8 /* Interrupt mode 2 */
- ldc #0x90,ccr /* running kernel */
-#endif
- mov.l #init_thread_union,sp
- add.l #0x2000,sp
- jsr @start_kernel
-
-1:
- bra 1b
-
-#if defined(CONFIG_ROMKERNEL)
- /* interrupt vector */
- .section .vectors,"ax"
- .long _start
- .long _start
-vector = 2
- .rept NR_INT - 2
- .long _interrupt_redirect_table+vector*4
-vector = vector + 1
- .endr
-#endif
- .end
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
deleted file mode 100644
index 8ad6d702cd0b..000000000000
--- a/arch/h8300/kernel/irq.c
+++ /dev/null
@@ -1,99 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/h8300/kernel/irq.c
- *
- * Copyright 2014-2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/irqchip.h>
-#include <linux/irqdomain.h>
-#include <linux/of_irq.h>
-#include <asm/traps.h>
-
-#ifdef CONFIG_RAMKERNEL
-typedef void (*h8300_vector)(void);
-
-static const h8300_vector __initconst trap_table[] = {
- 0, 0, 0, 0,
- _trace_break,
- 0, 0,
- _nmi,
- _system_call,
- 0, 0,
- _trace_break,
-};
-
-static unsigned long __init *get_vector_address(void)
-{
- unsigned long *rom_vector = CPU_VECTOR;
- unsigned long base, tmp;
- int vec_no;
-
- base = rom_vector[EXT_IRQ0] & ADDR_MASK;
-
- /* check romvector format */
- for (vec_no = EXT_IRQ0 + 1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) {
- if ((base+(vec_no - EXT_IRQ0)*4) !=
- (rom_vector[vec_no] & ADDR_MASK))
- return NULL;
- }
-
- /* ramvector base address */
- base -= EXT_IRQ0*4;
-
- /* writerble? */
- tmp = ~(*(volatile unsigned long *)base);
- (*(volatile unsigned long *)base) = tmp;
- if ((*(volatile unsigned long *)base) != tmp)
- return NULL;
- return (unsigned long *)base;
-}
-
-static void __init setup_vector(void)
-{
- int i;
- unsigned long *ramvec, *ramvec_p;
- const h8300_vector *trap_entry;
-
- ramvec = get_vector_address();
- if (ramvec == NULL)
- panic("interrupt vector serup failed.");
- else
- pr_debug("virtual vector at 0x%p\n", ramvec);
-
- /* create redirect table */
- ramvec_p = ramvec;
- trap_entry = trap_table;
- for (i = 0; i < NR_IRQS; i++) {
- if (i < 12) {
- if (*trap_entry)
- *ramvec_p = VECTOR(*trap_entry);
- ramvec_p++;
- trap_entry++;
- } else
- *ramvec_p++ = REDIRECT(_interrupt_entry);
- }
- _interrupt_redirect_table = ramvec;
-}
-#else
-void setup_vector(void)
-{
- /* noting do */
-}
-#endif
-
-void __init init_IRQ(void)
-{
- setup_vector();
- irqchip_init();
-}
-
-asmlinkage void do_IRQ(int irq)
-{
- irq_enter();
- generic_handle_irq(irq);
- irq_exit();
-}
diff --git a/arch/h8300/kernel/kgdb.c b/arch/h8300/kernel/kgdb.c
deleted file mode 100644
index 602e478afbd5..000000000000
--- a/arch/h8300/kernel/kgdb.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * H8/300 KGDB support
- *
- * Copyright (C) 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/ptrace.h>
-#include <linux/kgdb.h>
-#include <linux/kdebug.h>
-#include <linux/io.h>
-
-struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = {
- { "er0", GDB_SIZEOF_REG, offsetof(struct pt_regs, er0) },
- { "er1", GDB_SIZEOF_REG, offsetof(struct pt_regs, er1) },
- { "er2", GDB_SIZEOF_REG, offsetof(struct pt_regs, er2) },
- { "er3", GDB_SIZEOF_REG, offsetof(struct pt_regs, er3) },
- { "er4", GDB_SIZEOF_REG, offsetof(struct pt_regs, er4) },
- { "er5", GDB_SIZEOF_REG, offsetof(struct pt_regs, er5) },
- { "er6", GDB_SIZEOF_REG, offsetof(struct pt_regs, er6) },
- { "sp", GDB_SIZEOF_REG, offsetof(struct pt_regs, sp) },
- { "ccr", GDB_SIZEOF_REG, offsetof(struct pt_regs, ccr) },
- { "pc", GDB_SIZEOF_REG, offsetof(struct pt_regs, pc) },
- { "cycles", GDB_SIZEOF_REG, -1 },
-#if defined(CONFIG_CPU_H8S)
- { "exr", GDB_SIZEOF_REG, offsetof(struct pt_regs, exr) },
-#endif
- { "tick", GDB_SIZEOF_REG, -1 },
- { "inst", GDB_SIZEOF_REG, -1 },
-};
-
-char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
-{
- if (regno >= DBG_MAX_REG_NUM || regno < 0)
- return NULL;
-
- switch (regno) {
- case GDB_CCR:
-#if defined(CONFIG_CPU_H8S)
- case GDB_EXR:
-#endif
- *(u32 *)mem = *(u16 *)((void *)regs +
- dbg_reg_def[regno].offset);
- break;
- default:
- if (dbg_reg_def[regno].offset >= 0)
- memcpy(mem, (void *)regs + dbg_reg_def[regno].offset,
- dbg_reg_def[regno].size);
- else
- memset(mem, 0, dbg_reg_def[regno].size);
- break;
- }
- return dbg_reg_def[regno].name;
-}
-
-int dbg_set_reg(int regno, void *mem, struct pt_regs *regs)
-{
- if (regno >= DBG_MAX_REG_NUM || regno < 0)
- return -EINVAL;
-
- switch (regno) {
- case GDB_CCR:
-#if defined(CONFIG_CPU_H8S)
- case GDB_EXR:
-#endif
- *(u16 *)((void *)regs +
- dbg_reg_def[regno].offset) = *(u32 *)mem;
- break;
- default:
- memcpy((void *)regs + dbg_reg_def[regno].offset, mem,
- dbg_reg_def[regno].size);
- }
- return 0;
-}
-
-asmlinkage void h8300_kgdb_trap(struct pt_regs *regs)
-{
- regs->pc &= 0x00ffffff;
- if (kgdb_handle_exception(10, SIGTRAP, 0, regs))
- return;
- if (*(u16 *)(regs->pc) == *(u16 *)&arch_kgdb_ops.gdb_bpt_instr)
- regs->pc += BREAK_INSTR_SIZE;
- regs->pc |= regs->ccr << 24;
-}
-
-void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
-{
- memset((char *)gdb_regs, 0, NUMREGBYTES);
- gdb_regs[GDB_SP] = p->thread.ksp;
- gdb_regs[GDB_PC] = KSTK_EIP(p);
-}
-
-void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc)
-{
- regs->pc = pc;
-}
-
-int kgdb_arch_handle_exception(int vector, int signo, int err_code,
- char *remcom_in_buffer, char *remcom_out_buffer,
- struct pt_regs *regs)
-{
- char *ptr;
- unsigned long addr;
-
- switch (remcom_in_buffer[0]) {
- case 's':
- case 'c':
- /* handle the optional parameters */
- ptr = &remcom_in_buffer[1];
- if (kgdb_hex2long(&ptr, &addr))
- regs->pc = addr;
-
- return 0;
- }
-
- return -1; /* this means that we do not want to exit from the handler */
-}
-
-int kgdb_arch_init(void)
-{
- return 0;
-}
-
-void kgdb_arch_exit(void)
-{
- /* Nothing to do */
-}
-
-const struct kgdb_arch arch_kgdb_ops = {
- /* Breakpoint instruction: trapa #2 */
- .gdb_bpt_instr = { 0x57, 0x20 },
-};
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c
deleted file mode 100644
index cd802cc78d97..000000000000
--- a/arch/h8300/kernel/module.c
+++ /dev/null
@@ -1,71 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- unsigned int i;
- Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
-
- pr_debug("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
- /* This is where to make the change */
- uint32_t *loc =
- (uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rela[i].r_offset);
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM(rela[i].r_info);
- uint32_t v = sym->st_value + rela[i].r_addend;
-
- switch (ELF32_R_TYPE(rela[i].r_info)) {
- case R_H8_DIR24R8:
- loc = (uint32_t *)((uint32_t)loc - 1);
- *loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v);
- break;
- case R_H8_DIR24A8:
- if (ELF32_R_SYM(rela[i].r_info))
- *loc += v;
- break;
- case R_H8_DIR32:
- case R_H8_DIR32A16:
- *loc += v;
- break;
- case R_H8_PCREL16:
- v -= (unsigned long)loc + 2;
- if ((Elf32_Sword)v > 0x7fff ||
- (Elf32_Sword)v < -(Elf32_Sword)0x8000)
- goto overflow;
- else
- *(unsigned short *)loc = v;
- break;
- case R_H8_PCREL8:
- v -= (unsigned long)loc + 1;
- if ((Elf32_Sword)v > 0x7f ||
- (Elf32_Sword)v < -(Elf32_Sword)0x80)
- goto overflow;
- else
- *(unsigned char *)loc = v;
- break;
- default:
- pr_err("module %s: Unknown relocation: %u\n",
- me->name, ELF32_R_TYPE(rela[i].r_info));
- return -ENOEXEC;
- }
- }
- return 0;
- overflow:
- pr_err("module %s: relocation offset overflow: %08x\n",
- me->name, rela[i].r_offset);
- return -ENOEXEC;
-}
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
deleted file mode 100644
index 8833fa4f5d51..000000000000
--- a/arch/h8300/kernel/process.c
+++ /dev/null
@@ -1,173 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/h8300/kernel/process.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Based on:
- *
- * linux/arch/m68knommu/kernel/process.c
- *
- * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
- * Kenneth Albanowski <kjahds@kjahds.com>,
- * The Silver Hammer Group, Ltd.
- *
- * linux/arch/m68k/kernel/process.c
- *
- * Copyright (C) 1995 Hamish Macdonald
- *
- * 68060 fixes by Jesper Skov
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/sched/task.h>
-#include <linux/sched/task_stack.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/rcupdate.h>
-
-#include <linux/uaccess.h>
-#include <asm/traps.h>
-#include <asm/setup.h>
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-asmlinkage void ret_from_fork(void);
-asmlinkage void ret_from_kernel_thread(void);
-
-/*
- * The idle loop on an H8/300..
- */
-void arch_cpu_idle(void)
-{
- raw_local_irq_enable();
- __asm__("sleep");
-}
-
-void machine_restart(char *__unused)
-{
- local_irq_disable();
- __asm__("jmp @@0");
-}
-
-void machine_halt(void)
-{
- local_irq_disable();
- __asm__("sleep");
- for (;;)
- ;
-}
-
-void machine_power_off(void)
-{
- local_irq_disable();
- __asm__("sleep");
- for (;;)
- ;
-}
-
-void show_regs(struct pt_regs *regs)
-{
- show_regs_print_info(KERN_DEFAULT);
-
- pr_notice("\n");
- pr_notice("PC: %08lx Status: %02x\n",
- regs->pc, regs->ccr);
- pr_notice("ORIG_ER0: %08lx ER0: %08lx ER1: %08lx\n",
- regs->orig_er0, regs->er0, regs->er1);
- pr_notice("ER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx\n",
- regs->er2, regs->er3, regs->er4, regs->er5);
- pr_notice("ER6' %08lx ", regs->er6);
- if (user_mode(regs))
- printk("USP: %08lx\n", rdusp());
- else
- printk("\n");
-}
-
-void flush_thread(void)
-{
-}
-
-int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long topstk, struct task_struct *p, unsigned long tls)
-{
- struct pt_regs *childregs;
-
- childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1;
-
- if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
- memset(childregs, 0, sizeof(struct pt_regs));
- childregs->retpc = (unsigned long) ret_from_kernel_thread;
- childregs->er4 = topstk; /* arg */
- childregs->er5 = usp; /* fn */
- } else {
- *childregs = *current_pt_regs();
- childregs->er0 = 0;
- childregs->retpc = (unsigned long) ret_from_fork;
- p->thread.usp = usp ?: rdusp();
- }
- p->thread.ksp = (unsigned long)childregs;
-
- return 0;
-}
-
-unsigned long __get_wchan(struct task_struct *p)
-{
- unsigned long fp, pc;
- unsigned long stack_page;
- int count = 0;
-
- stack_page = (unsigned long)p;
- fp = ((struct pt_regs *)p->thread.ksp)->er6;
- do {
- if (fp < stack_page+sizeof(struct thread_info) ||
- fp >= 8184+stack_page)
- return 0;
- pc = ((unsigned long *)fp)[1];
- if (!in_sched_functions(pc))
- return pc;
- fp = *(unsigned long *) fp;
- } while (count++ < 16);
- return 0;
-}
-
-/* generic sys_clone is not enough registers */
-asmlinkage int sys_clone(unsigned long __user *args)
-{
- unsigned long clone_flags;
- unsigned long newsp;
- uintptr_t parent_tidptr;
- uintptr_t child_tidptr;
- struct kernel_clone_args kargs = {};
-
- get_user(clone_flags, &args[0]);
- get_user(newsp, &args[1]);
- get_user(parent_tidptr, &args[2]);
- get_user(child_tidptr, &args[3]);
-
- kargs.flags = (lower_32_bits(clone_flags) & ~CSIGNAL);
- kargs.pidfd = (int __user *)parent_tidptr;
- kargs.child_tid = (int __user *)child_tidptr;
- kargs.parent_tid = (int __user *)parent_tidptr;
- kargs.exit_signal = (lower_32_bits(clone_flags) & CSIGNAL);
- kargs.stack = newsp;
-
- return kernel_clone(&kargs);
-}
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
deleted file mode 100644
index a11db009d0ea..000000000000
--- a/arch/h8300/kernel/ptrace.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * linux/arch/h8300/kernel/ptrace.c
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/audit.h>
-#include <linux/tracehook.h>
-#include <linux/regset.h>
-#include <linux/elf.h>
-
-#define CCR_MASK 0x6f /* mode/imask not set */
-#define EXR_MASK 0x80 /* modify only T */
-
-#define PT_REG(r) offsetof(struct pt_regs, r)
-
-extern void user_disable_single_step(struct task_struct *child);
-
-/* Mapping from PT_xxx to the stack offset at which the register is
- saved. Notice that usp has no stack-slot and needs to be treated
- specially (see get_reg/put_reg below). */
-static const int register_offset[] = {
- PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
- PT_REG(er5), PT_REG(er6), PT_REG(er0), -1,
- PT_REG(orig_er0), PT_REG(ccr), PT_REG(pc),
-#if defined(CONFIG_CPU_H8S)
- PT_REG(exr),
-#endif
-};
-
-/* read register */
-long h8300_get_reg(struct task_struct *task, int regno)
-{
- switch (regno) {
- case PT_USP:
- return task->thread.usp + sizeof(long)*2;
- case PT_CCR:
- case PT_EXR:
- return *(unsigned short *)(task->thread.esp0 +
- register_offset[regno]);
- default:
- return *(unsigned long *)(task->thread.esp0 +
- register_offset[regno]);
- }
-}
-
-int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
-{
- unsigned short oldccr;
- unsigned short oldexr;
-
- switch (regno) {
- case PT_USP:
- task->thread.usp = data - sizeof(long)*2;
- case PT_CCR:
- oldccr = *(unsigned short *)(task->thread.esp0 +
- register_offset[regno]);
- oldccr &= ~CCR_MASK;
- data &= CCR_MASK;
- data |= oldccr;
- *(unsigned short *)(task->thread.esp0 +
- register_offset[regno]) = data;
- break;
- case PT_EXR:
- oldexr = *(unsigned short *)(task->thread.esp0 +
- register_offset[regno]);
- oldccr &= ~EXR_MASK;
- data &= EXR_MASK;
- data |= oldexr;
- *(unsigned short *)(task->thread.esp0 +
- register_offset[regno]) = data;
- break;
- default:
- *(unsigned long *)(task->thread.esp0 +
- register_offset[regno]) = data;
- break;
- }
- return 0;
-}
-
-static int regs_get(struct task_struct *target,
- const struct user_regset *regset,
- struct membuf to)
-{
- int r;
-
- BUILD_BUG_ON(sizeof(struct user_regs_struct) % sizeof(long) != 0);
- for (r = 0; r < ELF_NGREG; r++)
- membuf_store(&to, h8300_get_reg(target, r));
-
- return 0;
-}
-
-static int regs_set(struct task_struct *target,
- const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- const void *kbuf, const void __user *ubuf)
-{
- int r;
- int ret;
- struct user_regs_struct regs;
- long *reg;
-
- /* build user regs in buffer */
- BUILD_BUG_ON(sizeof(regs) % sizeof(long) != 0);
- for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
- *reg++ = h8300_get_reg(target, r);
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &regs, 0, sizeof(regs));
- if (ret)
- return ret;
-
- /* write back to pt_regs */
- for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
- h8300_put_reg(target, r, *reg++);
- return 0;
-}
-
-enum h8300_regset {
- REGSET_GENERAL,
-};
-
-static const struct user_regset h8300_regsets[] = {
- [REGSET_GENERAL] = {
- .core_note_type = NT_PRSTATUS,
- .n = ELF_NGREG,
- .size = sizeof(long),
- .align = sizeof(long),
- .regset_get = regs_get,
- .set = regs_set,
- },
-};
-
-static const struct user_regset_view user_h8300_native_view = {
- .name = "h8300",
- .e_machine = EM_H8_300,
- .regsets = h8300_regsets,
- .n = ARRAY_SIZE(h8300_regsets),
-};
-
-const struct user_regset_view *task_user_regset_view(struct task_struct *task)
-{
- return &user_h8300_native_view;
-}
-
-void ptrace_disable(struct task_struct *child)
-{
- user_disable_single_step(child);
-}
-
-long arch_ptrace(struct task_struct *child, long request,
- unsigned long addr, unsigned long data)
-{
- int ret;
-
- switch (request) {
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
- return ret;
-}
-
-asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
-{
- long ret = 0;
-
- if (test_thread_flag(TIF_SYSCALL_TRACE) &&
- tracehook_report_syscall_entry(regs))
- /*
- * Tracing decided this syscall should not happen.
- * We'll return a bogus call number to get an ENOSYS
- * error, but leave the original number in regs->regs[0].
- */
- ret = -1L;
-
- audit_syscall_entry(regs->er1, regs->er2, regs->er3,
- regs->er4, regs->er5);
-
- return ret ?: regs->er0;
-}
-
-asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
-{
- int step;
-
- audit_syscall_exit(regs);
-
- step = test_thread_flag(TIF_SINGLESTEP);
- if (step || test_thread_flag(TIF_SYSCALL_TRACE))
- tracehook_report_syscall_exit(regs, step);
-}
diff --git a/arch/h8300/kernel/ptrace_h.c b/arch/h8300/kernel/ptrace_h.c
deleted file mode 100644
index 15db45a03b04..000000000000
--- a/arch/h8300/kernel/ptrace_h.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * ptrace cpu depend helper functions
- *
- * Copyright 2003, 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/linkage.h>
-#include <linux/sched/signal.h>
-#include <asm/ptrace.h>
-
-#define BREAKINST 0x5730 /* trapa #3 */
-
-/* disable singlestep */
-void user_disable_single_step(struct task_struct *child)
-{
- if ((long)child->thread.breakinfo.addr != -1L) {
- *(child->thread.breakinfo.addr) = child->thread.breakinfo.inst;
- child->thread.breakinfo.addr = (unsigned short *)-1L;
- }
-}
-
-/* calculate next pc */
-enum jump_type {none, /* normal instruction */
- jabs, /* absolute address jump */
- ind, /* indirect address jump */
- ret, /* return to subrutine */
- reg, /* register indexed jump */
- relb, /* pc relative jump (byte offset) */
- relw, /* pc relative jump (word offset) */
- };
-
-/* opcode decode table define
- ptn: opcode pattern
- msk: opcode bitmask
- len: instruction length (<0 next table index)
- jmp: jump operation mode */
-struct optable {
- unsigned char bitpattern;
- unsigned char bitmask;
- signed char length;
- signed char type;
-} __packed __aligned(1);
-
-#define OPTABLE(ptn, msk, len, jmp) \
- { \
- .bitpattern = ptn, \
- .bitmask = msk, \
- .length = len, \
- .type = jmp, \
- }
-
-static const struct optable optable_0[] = {
- OPTABLE(0x00, 0xff, 1, none), /* 0x00 */
- OPTABLE(0x01, 0xff, -1, none), /* 0x01 */
- OPTABLE(0x02, 0xfe, 1, none), /* 0x02-0x03 */
- OPTABLE(0x04, 0xee, 1, none), /* 0x04-0x05/0x14-0x15 */
- OPTABLE(0x06, 0xfe, 1, none), /* 0x06-0x07 */
- OPTABLE(0x08, 0xea, 1, none), /* 0x08-0x09/0x0c-0x0d/0x18-0x19/0x1c-0x1d */
- OPTABLE(0x0a, 0xee, 1, none), /* 0x0a-0x0b/0x1a-0x1b */
- OPTABLE(0x0e, 0xee, 1, none), /* 0x0e-0x0f/0x1e-0x1f */
- OPTABLE(0x10, 0xfc, 1, none), /* 0x10-0x13 */
- OPTABLE(0x16, 0xfe, 1, none), /* 0x16-0x17 */
- OPTABLE(0x20, 0xe0, 1, none), /* 0x20-0x3f */
- OPTABLE(0x40, 0xf0, 1, relb), /* 0x40-0x4f */
- OPTABLE(0x50, 0xfc, 1, none), /* 0x50-0x53 */
- OPTABLE(0x54, 0xfd, 1, ret), /* 0x54/0x56 */
- OPTABLE(0x55, 0xff, 1, relb), /* 0x55 */
- OPTABLE(0x57, 0xff, 1, none), /* 0x57 */
- OPTABLE(0x58, 0xfb, 2, relw), /* 0x58/0x5c */
- OPTABLE(0x59, 0xfb, 1, reg), /* 0x59/0x5b */
- OPTABLE(0x5a, 0xfb, 2, jabs), /* 0x5a/0x5e */
- OPTABLE(0x5b, 0xfb, 2, ind), /* 0x5b/0x5f */
- OPTABLE(0x60, 0xe8, 1, none), /* 0x60-0x67/0x70-0x77 */
- OPTABLE(0x68, 0xfa, 1, none), /* 0x68-0x69/0x6c-0x6d */
- OPTABLE(0x6a, 0xfe, -2, none), /* 0x6a-0x6b */
- OPTABLE(0x6e, 0xfe, 2, none), /* 0x6e-0x6f */
- OPTABLE(0x78, 0xff, 4, none), /* 0x78 */
- OPTABLE(0x79, 0xff, 2, none), /* 0x79 */
- OPTABLE(0x7a, 0xff, 3, none), /* 0x7a */
- OPTABLE(0x7b, 0xff, 2, none), /* 0x7b */
- OPTABLE(0x7c, 0xfc, 2, none), /* 0x7c-0x7f */
- OPTABLE(0x80, 0x80, 1, none), /* 0x80-0xff */
-};
-
-static const struct optable optable_1[] = {
- OPTABLE(0x00, 0xff, -3, none), /* 0x0100 */
- OPTABLE(0x40, 0xf0, -3, none), /* 0x0140-0x14f */
- OPTABLE(0x80, 0xf0, 1, none), /* 0x0180-0x018f */
- OPTABLE(0xc0, 0xc0, 2, none), /* 0x01c0-0x01ff */
-};
-
-static const struct optable optable_2[] = {
- OPTABLE(0x00, 0x20, 2, none), /* 0x6a0?/0x6a8?/0x6b0?/0x6b8? */
- OPTABLE(0x20, 0x20, 3, none), /* 0x6a2?/0x6aa?/0x6b2?/0x6ba? */
-};
-
-static const struct optable optable_3[] = {
- OPTABLE(0x69, 0xfb, 2, none), /* 0x010069/0x01006d/014069/0x01406d */
- OPTABLE(0x6b, 0xff, -4, none), /* 0x01006b/0x01406b */
- OPTABLE(0x6f, 0xff, 3, none), /* 0x01006f/0x01406f */
- OPTABLE(0x78, 0xff, 5, none), /* 0x010078/0x014078 */
-};
-
-static const struct optable optable_4[] = {
-/* 0x0100690?/0x01006d0?/0140690?/0x01406d0?/
- 0x0100698?/0x01006d8?/0140698?/0x01406d8? */
- OPTABLE(0x00, 0x78, 3, none),
-/* 0x0100692?/0x01006d2?/0140692?/0x01406d2?/
- 0x010069a?/0x01006da?/014069a?/0x01406da? */
- OPTABLE(0x20, 0x78, 4, none),
-};
-
-static const struct optables_list {
- const struct optable *ptr;
- int size;
-} optables[] = {
-#define OPTABLES(no) \
- { \
- .ptr = optable_##no, \
- .size = sizeof(optable_##no) / sizeof(struct optable), \
- }
- OPTABLES(0),
- OPTABLES(1),
- OPTABLES(2),
- OPTABLES(3),
- OPTABLES(4),
-
-};
-
-const unsigned char condmask[] = {
- 0x00, 0x40, 0x01, 0x04, 0x02, 0x08, 0x10, 0x20
-};
-
-static int isbranch(struct task_struct *task, int reson)
-{
- unsigned char cond = h8300_get_reg(task, PT_CCR);
-
- /* encode complex conditions */
- /* B4: N^V
- B5: Z|(N^V)
- B6: C|Z */
- __asm__("bld #3,%w0\n\t"
- "bxor #1,%w0\n\t"
- "bst #4,%w0\n\t"
- "bor #2,%w0\n\t"
- "bst #5,%w0\n\t"
- "bld #2,%w0\n\t"
- "bor #0,%w0\n\t"
- "bst #6,%w0\n\t"
- : "=&r"(cond) : "0"(cond) : "cc");
- cond &= condmask[reson >> 1];
- if (!(reson & 1))
- return cond == 0;
- else
- return cond != 0;
-}
-
-static unsigned short *decode(struct task_struct *child,
- const struct optable *op,
- char *fetch_p, unsigned short *pc,
- unsigned char inst)
-{
- unsigned long addr;
- unsigned long *sp;
- int regno;
-
- switch (op->type) {
- case none:
- return (unsigned short *)pc + op->length;
- case jabs:
- addr = *(unsigned long *)pc;
- return (unsigned short *)(addr & 0x00ffffff);
- case ind:
- addr = *pc & 0xff;
- return (unsigned short *)(*(unsigned long *)addr);
- case ret:
- sp = (unsigned long *)h8300_get_reg(child, PT_USP);
- /* user stack frames
- | er0 | temporary saved
- +--------+
- | exp | exception stack frames
- +--------+
- | ret pc | userspace return address
- */
- return (unsigned short *)(*(sp+2) & 0x00ffffff);
- case reg:
- regno = (*pc >> 4) & 0x07;
- if (regno == 0)
- addr = h8300_get_reg(child, PT_ER0);
- else
- addr = h8300_get_reg(child, regno-1 + PT_ER1);
- return (unsigned short *)addr;
- case relb:
- if (inst == 0x55 || isbranch(child, inst & 0x0f))
- pc = (unsigned short *)((unsigned long)pc +
- ((signed char)(*fetch_p)));
- return pc+1; /* skip myself */
- case relw:
- if (inst == 0x5c || isbranch(child, (*fetch_p & 0xf0) >> 4))
- pc = (unsigned short *)((unsigned long)pc +
- ((signed short)(*(pc+1))));
- return pc+2; /* skip myself */
- default:
- return NULL;
- }
-}
-
-static unsigned short *nextpc(struct task_struct *child, unsigned short *pc)
-{
- const struct optable *op;
- unsigned char *fetch_p;
- int op_len;
- unsigned char inst;
-
- op = optables[0].ptr;
- op_len = optables[0].size;
- fetch_p = (unsigned char *)pc;
- inst = *fetch_p++;
- do {
- if ((inst & op->bitmask) == op->bitpattern) {
- if (op->length < 0) {
- op = optables[-op->length].ptr;
- op_len = optables[-op->length].size + 1;
- inst = *fetch_p++;
- } else
- return decode(child, op, fetch_p, pc, inst);
- } else
- op++;
- } while (--op_len > 0);
- return NULL;
-}
-
-/* Set breakpoint(s) to simulate a single step from the current PC. */
-
-void user_enable_single_step(struct task_struct *child)
-{
- unsigned short *next;
-
- next = nextpc(child, (unsigned short *)h8300_get_reg(child, PT_PC));
- child->thread.breakinfo.addr = next;
- child->thread.breakinfo.inst = *next;
- *next = BREAKINST;
-}
-
-asmlinkage void trace_trap(unsigned long bp)
-{
- if ((unsigned long)current->thread.breakinfo.addr == bp) {
- user_disable_single_step(current);
- force_sig(SIGTRAP);
- } else
- force_sig(SIGILL);
-}
diff --git a/arch/h8300/kernel/ptrace_s.c b/arch/h8300/kernel/ptrace_s.c
deleted file mode 100644
index ee21f37b7ed4..000000000000
--- a/arch/h8300/kernel/ptrace_s.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * linux/arch/h8300/kernel/ptrace_h8s.c
- * ptrace cpu depend helper functions
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/linkage.h>
-#include <linux/sched/signal.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-
-#define CCR_MASK 0x6f
-#define EXR_TRACE 0x80
-
-/* disable singlestep */
-void user_disable_single_step(struct task_struct *child)
-{
- unsigned char exr;
-
- exr = h8300_get_reg(child, PT_EXR);
- exr &= ~EXR_TRACE;
- h8300_put_reg(child, PT_EXR, exr);
-}
-
-/* enable singlestep */
-void user_enable_single_step(struct task_struct *child)
-{
- unsigned char exr;
-
- exr = h8300_get_reg(child, PT_EXR);
- exr |= EXR_TRACE;
- h8300_put_reg(child, PT_EXR, exr);
-}
-
-asmlinkage void trace_trap(unsigned long bp)
-{
- (void)bp;
- force_sig(SIGTRAP);
-}
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
deleted file mode 100644
index 61091a76eb7e..000000000000
--- a/arch/h8300/kernel/setup.c
+++ /dev/null
@@ -1,213 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/h8300/kernel/setup.c
- *
- * Copyright (C) 2001-2014 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-/*
- * This file handles the architecture-dependent parts of system setup
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/console.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_address.h>
-#include <linux/clk-provider.h>
-#include <linux/memblock.h>
-#include <linux/screen_info.h>
-#include <linux/clocksource.h>
-
-#include <asm/setup.h>
-#include <asm/irq.h>
-#include <asm/sections.h>
-#include <asm/page.h>
-
-#if defined(CONFIG_CPU_H8300H)
-#define CPU "H8/300H"
-#elif defined(CONFIG_CPU_H8S)
-#define CPU "H8S"
-#else
-#define CPU "Unknown"
-#endif
-
-unsigned long memory_start;
-unsigned long memory_end;
-EXPORT_SYMBOL(memory_end);
-static unsigned long freq;
-extern char __dtb_start[];
-
-#ifdef CONFIG_VT
-struct screen_info screen_info;
-#endif
-
-char __initdata command_line[COMMAND_LINE_SIZE];
-
-void sim_console_register(void);
-
-void __init h8300_fdt_init(void *fdt, char *bootargs)
-{
- if (!fdt)
- fdt = __dtb_start;
- else
- strcpy(command_line, bootargs);
-
- early_init_dt_scan(fdt);
- memblock_allow_resize();
-}
-
-static void __init bootmem_init(void)
-{
- memory_end = memory_start = 0;
-
- /* Find main memory where is the kernel */
- memory_start = memblock_start_of_DRAM();
- memory_end = memblock_end_of_DRAM();
-
- if (!memory_end)
- panic("No memory!");
-
- /* setup bootmem globals (we use no_bootmem, but mm still depends on this) */
- min_low_pfn = PFN_UP(memory_start);
- max_low_pfn = PFN_DOWN(memory_end);
- max_pfn = max_low_pfn;
-
- memblock_reserve(__pa(_stext), _end - _stext);
-
- early_init_fdt_reserve_self();
- early_init_fdt_scan_reserved_mem();
-
- memblock_dump_all();
-}
-
-void __init setup_arch(char **cmdline_p)
-{
- unflatten_and_copy_device_tree();
-
- setup_initial_init_mm(_stext, _etext, _edata, NULL);
-
- pr_notice("\r\n\nuClinux " CPU "\n");
- pr_notice("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
-
- if (*command_line)
- strcpy(boot_command_line, command_line);
- *cmdline_p = boot_command_line;
-
- parse_early_param();
-
- bootmem_init();
- /*
- * get kmalloc into gear
- */
- paging_init();
-}
-
-/*
- * Get CPU information for use by the procfs.
- */
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
- char *cpu;
-
- cpu = CPU;
-
- seq_printf(m, "CPU:\t\t%s\n"
- "Clock:\t\t%lu.%1luMHz\n"
- "BogoMips:\t%lu.%02lu\n"
- "Calibration:\t%lu loops\n",
- cpu,
- freq/1000, freq%1000,
- (loops_per_jiffy*HZ)/500000,
- ((loops_per_jiffy*HZ)/5000)%100,
- (loops_per_jiffy*HZ));
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return *pos < num_possible_cpus() ?
- ((void *) 0x12345678) : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return c_start(m, pos);
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-const struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
-};
-
-#if defined(CONFIG_CPU_H8300H)
-#define get_wait(base, addr) ({ \
- int baddr; \
- baddr = ((addr) / 0x200000 * 2); \
- w *= (readw((base) + 2) & (3 << baddr)) + 1; \
- })
-#endif
-#if defined(CONFIG_CPU_H8S)
-#define get_wait(base, addr) ({ \
- int baddr; \
- baddr = ((addr) / 0x200000 * 16); \
- w *= (readl((base) + 2) & (7 << baddr)) + 1; \
- })
-#endif
-
-static __init int access_timing(void)
-{
- struct device_node *bsc;
- void __iomem *base;
- unsigned long addr = (unsigned long)&__delay;
- int bit = 1 << (addr / 0x200000);
- int w;
-
- bsc = of_find_compatible_node(NULL, NULL, "renesas,h8300-bsc");
- base = of_iomap(bsc, 0);
- w = (readb(base + 0) & bit)?2:1;
- if (readb(base + 1) & bit)
- w *= get_wait(base, addr);
- else
- w *= 2;
- return w * 3 / 2;
-}
-
-void __init calibrate_delay(void)
-{
- struct device_node *cpu;
- int freq;
-
- cpu = of_find_compatible_node(NULL, NULL, "renesas,h8300");
- of_property_read_s32(cpu, "clock-frequency", &freq);
- loops_per_jiffy = freq / HZ / (access_timing() * 2);
- pr_cont("%lu.%02lu BogoMIPS (lpj=%lu)\n",
- loops_per_jiffy / (500000 / HZ),
- (loops_per_jiffy / (5000 / HZ)) % 100, loops_per_jiffy);
-}
-
-
-void __init time_init(void)
-{
- of_clk_init(NULL);
- timer_probe();
-}
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
deleted file mode 100644
index 75a1c36b105a..000000000000
--- a/arch/h8300/kernel/signal.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * linux/arch/h8300/kernel/signal.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/*
- * uClinux H8/300 support by Yoshinori Sato <ysato@users.sourceforge.jp>
- * and David McCullough <davidm@snapgear.com>
- *
- * Based on
- * Linux/m68k by Hamish Macdonald
- */
-
-/*
- * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
- * Atari :-) Current limitation: Only one sigstack can be active at one time.
- * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
- * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
- * signal handlers!
- */
-
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/highuid.h>
-#include <linux/personality.h>
-#include <linux/tty.h>
-#include <linux/binfmts.h>
-#include <linux/tracehook.h>
-
-#include <asm/setup.h>
-#include <linux/uaccess.h>
-#include <asm/traps.h>
-#include <asm/ucontext.h>
-
-/*
- * Do a signal return; undo the signal stack.
- *
- * Keep the return code on the stack quadword aligned!
- * That makes the cache flush below easier.
- */
-
-struct rt_sigframe {
- long dummy_er0;
- long dummy_vector;
-#if defined(CONFIG_CPU_H8S)
- short dummy_exr;
-#endif
- long dummy_pc;
- char *pretcode;
- struct siginfo *pinfo;
- void *puc;
- unsigned char retcode[8];
- struct siginfo info;
- struct ucontext uc;
- int sig;
-} __packed __aligned(2);
-
-static inline int
-restore_sigcontext(struct sigcontext *usc, int *pd0)
-{
- struct pt_regs *regs = current_pt_regs();
- int err = 0;
- unsigned int ccr;
- unsigned int usp;
- unsigned int er0;
-
- /* Always make any pending restarted system calls return -EINTR */
- current->restart_block.fn = do_no_restart_syscall;
-
- /* restore passed registers */
-#define COPY(r) do { err |= get_user(regs->r, &usc->sc_##r); } while (0)
- COPY(er1);
- COPY(er2);
- COPY(er3);
- COPY(er5);
- COPY(pc);
- ccr = regs->ccr & 0x10;
- COPY(ccr);
-#undef COPY
- regs->ccr &= 0xef;
- regs->ccr |= ccr;
- regs->orig_er0 = -1; /* disable syscall checks */
- err |= __get_user(usp, &usc->sc_usp);
- regs->sp = usp;
-
- err |= __get_user(er0, &usc->sc_er0);
- *pd0 = er0;
- return err;
-}
-
-asmlinkage int sys_rt_sigreturn(void)
-{
- unsigned long usp = rdusp();
- struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4);
- sigset_t set;
- int er0;
-
- if (!access_ok(frame, sizeof(*frame)))
- goto badframe;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- set_current_blocked(&set);
-
- if (restore_sigcontext(&frame->uc.uc_mcontext, &er0))
- goto badframe;
-
- if (restore_altstack(&frame->uc.uc_stack))
- goto badframe;
-
- return er0;
-
-badframe:
- force_sig(SIGSEGV);
- return 0;
-}
-
-static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
- unsigned long mask)
-{
- int err = 0;
-
- err |= __put_user(regs->er0, &sc->sc_er0);
- err |= __put_user(regs->er1, &sc->sc_er1);
- err |= __put_user(regs->er2, &sc->sc_er2);
- err |= __put_user(regs->er3, &sc->sc_er3);
- err |= __put_user(regs->er4, &sc->sc_er4);
- err |= __put_user(regs->er5, &sc->sc_er5);
- err |= __put_user(regs->er6, &sc->sc_er6);
- err |= __put_user(rdusp(), &sc->sc_usp);
- err |= __put_user(regs->pc, &sc->sc_pc);
- err |= __put_user(regs->ccr, &sc->sc_ccr);
- err |= __put_user(mask, &sc->sc_mask);
-
- return err;
-}
-
-static inline void __user *
-get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size)
-{
- return (void __user *)((sigsp(rdusp(), ksig) - frame_size) & -8UL);
-}
-
-static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
- struct pt_regs *regs)
-{
- struct rt_sigframe *frame;
- int err = 0;
- unsigned char *ret;
-
- frame = get_sigframe(ksig, regs, sizeof(*frame));
-
- if (!access_ok(frame, sizeof(*frame)))
- return -EFAULT;
-
- if (ksig->ka.sa.sa_flags & SA_SIGINFO)
- err |= copy_siginfo_to_user(&frame->info, &ksig->info);
-
- /* Create the ucontext. */
- err |= __put_user(0, &frame->uc.uc_flags);
- err |= __put_user(0, &frame->uc.uc_link);
- err |= __save_altstack(&frame->uc.uc_stack, rdusp());
- err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
- err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
- if (err)
- return -EFAULT;
-
- /* Set up to return from userspace. */
- ret = (unsigned char *)&frame->retcode;
- if (ksig->ka.sa.sa_flags & SA_RESTORER)
- ret = (unsigned char *)(ksig->ka.sa.sa_restorer);
- else {
- /* sub.l er0,er0; mov.b #__NR_rt_sigreturn,r0l; trapa #0 */
- err |= __put_user(0x1a80f800 + (__NR_rt_sigreturn & 0xff),
- (unsigned long *)(frame->retcode + 0));
- err |= __put_user(0x5700,
- (unsigned short *)(frame->retcode + 4));
- }
- err |= __put_user(ret, &frame->pretcode);
-
- if (err)
- return -EFAULT;
-
- /* Set up registers for signal handler */
- regs->sp = (unsigned long)frame;
- regs->pc = (unsigned long)ksig->ka.sa.sa_handler;
- regs->er0 = ksig->sig;
- regs->er1 = (unsigned long)&(frame->info);
- regs->er2 = (unsigned long)&frame->uc;
- regs->er5 = current->mm->start_data; /* GOT base */
-
- return 0;
-}
-
-static void
-handle_restart(struct pt_regs *regs, struct k_sigaction *ka)
-{
- switch (regs->er0) {
- case -ERESTARTNOHAND:
- if (!ka)
- goto do_restart;
- regs->er0 = -EINTR;
- break;
- case -ERESTART_RESTARTBLOCK:
- if (!ka) {
- regs->er0 = __NR_restart_syscall;
- regs->pc -= 2;
- } else
- regs->er0 = -EINTR;
- break;
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->er0 = -EINTR;
- break;
- }
- fallthrough;
- case -ERESTARTNOINTR:
-do_restart:
- regs->er0 = regs->orig_er0;
- regs->pc -= 2;
- break;
- }
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void
-handle_signal(struct ksignal *ksig, struct pt_regs *regs)
-{
- sigset_t *oldset = sigmask_to_save();
- int ret;
- /* are we from a system call? */
- if (regs->orig_er0 >= 0)
- handle_restart(regs, &ksig->ka);
-
- ret = setup_rt_frame(ksig, oldset, regs);
-
- signal_setup_done(ret, ksig, 0);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- */
-static void do_signal(struct pt_regs *regs)
-{
- struct ksignal ksig;
-
- current->thread.esp0 = (unsigned long) regs;
-
- if (get_signal(&ksig)) {
- /* Whee! Actually deliver the signal. */
- handle_signal(&ksig, regs);
- return;
- }
- /* Did we come from a system call? */
- if (regs->orig_er0 >= 0)
- handle_restart(regs, NULL);
-
- /* If there's no signal to deliver, we just restore the saved mask. */
- restore_saved_sigmask();
-}
-
-asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags)
-{
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
- do_signal(regs);
-
- if (thread_info_flags & _TIF_NOTIFY_RESUME)
- tracehook_notify_resume(regs);
-}
diff --git a/arch/h8300/kernel/sim-console.c b/arch/h8300/kernel/sim-console.c
deleted file mode 100644
index 03aa35b1a08c..000000000000
--- a/arch/h8300/kernel/sim-console.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * arch/h8300/kernel/sim-console.c
- *
- * Copyright (C) 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-
-static void sim_write(struct console *con, const char *s, unsigned n)
-{
- register const char *_ptr __asm__("er1") = s;
- register const unsigned _len __asm__("er2") = n;
-
- __asm__("sub.l er0,er0\n\t" /* er0 = 1 (stdout) */
- "inc.l #1,er0\n\t"
- ".byte 0x5e,0x00,0x00,0xc7\n\t" /* jsr @0xc7 (sys_write) */
- : : "g"(_ptr), "g"(_len):"er0");
-}
-
-static int __init sim_setup(struct earlycon_device *device, const char *opt)
-{
- device->con->write = sim_write;
- return 0;
-}
-
-EARLYCON_DECLARE(h8sim, sim_setup);
diff --git a/arch/h8300/kernel/syscalls.c b/arch/h8300/kernel/syscalls.c
deleted file mode 100644
index 9022036fb3d2..000000000000
--- a/arch/h8300/kernel/syscalls.c
+++ /dev/null
@@ -1,15 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/syscalls.h>
-#include <linux/signal.h>
-#include <linux/unistd.h>
-
-#undef __SYSCALL
-#define __SYSCALL(nr, call) [nr] = (call),
-
-#define sys_mmap2 sys_mmap_pgoff
-
-asmlinkage int sys_rt_sigreturn(void);
-
-void *_sys_call_table[__NR_syscalls] = {
-#include <asm/unistd.h>
-};
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
deleted file mode 100644
index a92c39e03802..000000000000
--- a/arch/h8300/kernel/traps.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * linux/arch/h8300/boot/traps.c -- general exception handling code
- * H8/300 support Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Cloned from Linux/m68k.
- *
- * No original Copyright holder listed,
- * Probable original (C) Roman Zippel (assigned DJD, 1999)
- *
- * Copyright 1999-2000 D. Jeff Dionne, <jeff@rt-control.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/sched/task.h>
-#include <linux/mm_types.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/bug.h>
-
-#include <asm/irq.h>
-#include <asm/traps.h>
-#include <asm/page.h>
-
-static DEFINE_SPINLOCK(die_lock);
-
-/*
- * this must be called very early as the kernel might
- * use some instruction that are emulated on the 060
- */
-
-void __init base_trap_init(void)
-{
-}
-
-asmlinkage void set_esp0(unsigned long ssp)
-{
- current->thread.esp0 = ssp;
-}
-
-/*
- * Generic dumping code. Used for panic and debug.
- */
-
-static void dump(struct pt_regs *fp)
-{
- unsigned long *sp;
- unsigned char *tp;
- int i;
-
- pr_info("\nCURRENT PROCESS:\n\n");
- pr_info("COMM=%s PID=%d\n", current->comm, current->pid);
- if (current->mm) {
- pr_info("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
- (int) current->mm->start_code,
- (int) current->mm->end_code,
- (int) current->mm->start_data,
- (int) current->mm->end_data,
- (int) current->mm->end_data,
- (int) current->mm->brk);
- pr_info("USER-STACK=%08x KERNEL-STACK=%08lx\n\n",
- (int) current->mm->start_stack,
- (int) PAGE_SIZE+(unsigned long)current);
- }
-
- show_regs(fp);
- pr_info("\nCODE:");
- tp = ((unsigned char *) fp->pc) - 0x20;
- for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) {
- if ((i % 0x10) == 0)
- pr_info("\n%08x: ", (int) (tp + i));
- pr_info("%08x ", (int) *sp++);
- }
- pr_info("\n");
-
- pr_info("\nKERNEL STACK:");
- tp = ((unsigned char *) fp) - 0x40;
- for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
- if ((i % 0x10) == 0)
- pr_info("\n%08x: ", (int) (tp + i));
- pr_info("%08x ", (int) *sp++);
- }
- pr_info("\n");
- if (STACK_MAGIC != *(unsigned long *)((unsigned long)current+PAGE_SIZE))
- pr_info("(Possibly corrupted stack page??)\n");
-
- pr_info("\n\n");
-}
-
-void die(const char *str, struct pt_regs *fp, unsigned long err)
-{
- static int diecount;
-
- oops_enter();
-
- console_verbose();
- spin_lock_irq(&die_lock);
- report_bug(fp->pc, fp);
- pr_crit("%s: %04lx [#%d] ", str, err & 0xffff, ++diecount);
- dump(fp);
-
- spin_unlock_irq(&die_lock);
- make_task_dead(SIGSEGV);
-}
-
-static int kstack_depth_to_print = 24;
-
-void show_stack(struct task_struct *task, unsigned long *esp, const char *loglvl)
-{
- unsigned long *stack, addr;
- int i;
-
- if (esp == NULL)
- esp = (unsigned long *) &esp;
-
- stack = esp;
-
- printk("%sStack from %08lx:", loglvl, (unsigned long)stack);
- for (i = 0; i < kstack_depth_to_print; i++) {
- if (((unsigned long)stack & (THREAD_SIZE - 1)) >=
- THREAD_SIZE-4)
- break;
- if (i % 8 == 0)
- printk("%s ", loglvl);
- pr_cont(" %08lx", *stack++);
- }
-
- printk("%s\nCall Trace:\n", loglvl);
- i = 0;
- stack = esp;
- while (((unsigned long)stack & (THREAD_SIZE - 1)) < THREAD_SIZE-4) {
- addr = *stack++;
- /*
- * If the address is either in the text segment of the
- * kernel, or in the region which contains vmalloc'ed
- * memory, it *may* be the address of a calling
- * routine; if so, print it so that someone tracing
- * down the cause of the crash will be able to figure
- * out the call path that was taken.
- */
- if (check_kernel_text(addr)) {
- if (i % 4 == 0)
- printk("%s ", loglvl);
- pr_cont(" [<%08lx>]", addr);
- i++;
- }
- }
- printk("%s\n", loglvl);
-}
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
deleted file mode 100644
index 6b1afc2f9b68..000000000000
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,69 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#define RO_EXCEPTION_TABLE_ALIGN 16
-
-#include <asm-generic/vmlinux.lds.h>
-#include <asm/page.h>
-#include <asm/thread_info.h>
-
-#define ROMTOP 0x000000
-#define RAMTOP 0x400000
-
-jiffies = jiffies_64 + 4;
-
-ENTRY(_start)
-
-SECTIONS
-{
-#if defined(CONFIG_ROMKERNEL)
- . = ROMTOP;
- .vectors :
- {
- _vector = . ;
- *(.vector*)
- }
-#else
- . = RAMTOP;
- _ramstart = .;
- . = . + CONFIG_OFFSET;
-#endif
- _text = .;
- HEAD_TEXT_SECTION
- .text : {
- _stext = . ;
- TEXT_TEXT
- SCHED_TEXT
- CPUIDLE_TEXT
- LOCK_TEXT
-#if defined(CONFIG_ROMKERNEL)
- *(.int_redirect)
-#endif
- _etext = . ;
- }
- RO_DATA(4)
- ROMEND = .;
-#if defined(CONFIG_ROMKERNEL)
- . = RAMTOP;
- _ramstart = .;
-#define ADDR(x) ROMEND
-#endif
- _sdata = . ;
- __data_start = . ;
- RW_DATA(0, PAGE_SIZE, THREAD_SIZE)
-#if defined(CONFIG_ROMKERNEL)
-#undef ADDR
-#endif
- . = ALIGN(0x4) ;
- __init_begin = .;
- INIT_TEXT_SECTION(4)
- INIT_DATA_SECTION(4)
- __init_end = .;
- _edata = . ;
- _begin_data = LOADADDR(.data);
- _sbss =.;
- BSS_SECTION(0, 0 ,0)
- _ebss =.;
- _ramend = .;
- _end = .;
- DISCARDS
-}
generated by cgit (git 2.34.1) at 2025-04-03 23:23:01 +0000