diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:50:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:50:30 -0700 |
| commit | 16477cdfefdb494235a675cc80563d736991d833 (patch) | |
| tree | ccb761eb4574446f8b3d400037add1801f550837 /arch | |
| parent | ecf0aa5317b0ad6bb015128a5b763c954fd58708 (diff) | |
| parent | b2441b3bdce6c02cb96278d98c620d7ba1d41b7b (diff) | |
Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The asm-generic tree contains three separate changes for linux-5.19:
- The h8300 architecture is retired after it has been effectively
unmaintained for a number of years. This is the last architecture
we supported that has no MMU implementation, but there are still a
few architectures (arm, m68k, riscv, sh and xtensa) that support
CPUs with and without an MMU.
- A series to add a generic ticket spinlock that can be shared by
most architectures with a working cmpxchg or ll/sc type atomic,
including the conversion of riscv, csky and openrisc. This series
is also a prerequisite for the loongarch64 architecture port that
will come as a separate pull request.
- A cleanup of some exported uapi header files to ensure they can be
included from user space without relying on other kernel headers"
* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
h8300: remove stale bindings and symlink
sparc: add asm/stat.h to UAPI compile-test coverage
powerpc: add asm/stat.h to UAPI compile-test coverage
mips: add asm/stat.h to UAPI compile-test coverage
riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
agpgart.h: do not include <stdlib.h> from exported header
csky: Move to generic ticket-spinlock
RISC-V: Move to queued RW locks
RISC-V: Move to generic spinlocks
openrisc: Move to ticket-spinlock
asm-generic: qrwlock: Document the spinlock fairness requirements
asm-generic: qspinlock: Indicate the use of mixed-size atomics
asm-generic: ticket-lock: New generic ticket-based spinlock
remove the h8300 architecture
Diffstat (limited to 'arch')
106 files changed, 31 insertions, 6049 deletions
diff --git a/arch/csky/include/asm/Kbuild b/arch/csky/include/asm/Kbuild index 888248235c23..103207a58f97 100644 --- a/arch/csky/include/asm/Kbuild +++ b/arch/csky/include/asm/Kbuild @@ -3,7 +3,10 @@ generic-y += asm-offsets.h generic-y += extable.h generic-y += gpio.h generic-y += kvm_para.h +generic-y += spinlock.h +generic-y += spinlock_types.h generic-y += qrwlock.h +generic-y += qrwlock_types.h generic-y += parport.h generic-y += user.h generic-y += vmlinux.lds.h diff --git a/arch/csky/include/asm/spinlock.h b/arch/csky/include/asm/spinlock.h deleted file mode 100644 index 69f5aa249c5f..000000000000 --- a/arch/csky/include/asm/spinlock.h +++ /dev/null @@ -1,89 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef __ASM_CSKY_SPINLOCK_H -#define __ASM_CSKY_SPINLOCK_H - -#include <linux/spinlock_types.h> -#include <asm/barrier.h> - -/* - * Ticket-based spin-locking. - */ -static inline void arch_spin_lock(arch_spinlock_t *lock) -{ - arch_spinlock_t lockval; - u32 ticket_next = 1 << TICKET_NEXT; - u32 *p = &lock->lock; - u32 tmp; - - asm volatile ( - "1: ldex.w %0, (%2) \n" - " mov %1, %0 \n" - " add %0, %3 \n" - " stex.w %0, (%2) \n" - " bez %0, 1b \n" - : "=&r" (tmp), "=&r" (lockval) - : "r"(p), "r"(ticket_next) - : "cc"); - - while (lockval.tickets.next != lockval.tickets.owner) - lockval.tickets.owner = READ_ONCE(lock->tickets.owner); - - smp_mb(); -} - -static inline int arch_spin_trylock(arch_spinlock_t *lock) -{ - u32 tmp, contended, res; - u32 ticket_next = 1 << TICKET_NEXT; - u32 *p = &lock->lock; - - do { - asm volatile ( - " ldex.w %0, (%3) \n" - " movi %2, 1 \n" - " rotli %1, %0, 16 \n" - " cmpne %1, %0 \n" - " bt 1f \n" - " movi %2, 0 \n" - " add %0, %0, %4 \n" - " stex.w %0, (%3) \n" - "1: \n" - : "=&r" (res), "=&r" (tmp), "=&r" (contended) - : "r"(p), "r"(ticket_next) - : "cc"); - } while (!res); - - if (!contended) - smp_mb(); - - return !contended; -} - -static inline void arch_spin_unlock(arch_spinlock_t *lock) -{ - smp_mb(); - WRITE_ONCE(lock->tickets.owner, lock->tickets.owner + 1); -} - -static inline int arch_spin_value_unlocked(arch_spinlock_t lock) -{ - return lock.tickets.owner == lock.tickets.next; -} - -static inline int arch_spin_is_locked(arch_spinlock_t *lock) -{ - return !arch_spin_value_unlocked(READ_ONCE(*lock)); -} - -static inline int arch_spin_is_contended(arch_spinlock_t *lock) -{ - struct __raw_tickets tickets = READ_ONCE(lock->tickets); - - return (tickets.next - tickets.owner) > 1; -} -#define arch_spin_is_contended arch_spin_is_contended - -#include <asm/qrwlock.h> - -#endif /* __ASM_CSKY_SPINLOCK_H */ diff --git a/arch/csky/include/asm/spinlock_types.h b/arch/csky/include/asm/spinlock_types.h deleted file mode 100644 index db87a12c3827..000000000000 --- a/arch/csky/include/asm/spinlock_types.h +++ /dev/null @@ -1,27 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef __ASM_CSKY_SPINLOCK_TYPES_H -#define __ASM_CSKY_SPINLOCK_TYPES_H - -#ifndef __LINUX_SPINLOCK_TYPES_RAW_H -# error "please don't include this file directly" -#endif - -#define TICKET_NEXT 16 - -typedef struct { - union { - u32 lock; - struct __raw_tickets { - /* little endian */ - u16 owner; - u16 next; - } tickets; - }; -} arch_spinlock_t; - -#define __ARCH_SPIN_LOCK_UNLOCKED { { 0 } } - -#include <asm-generic/qrwlock_types.h> - -#endif /* __ASM_CSKY_SPINLOCK_TYPES_H */ diff --git a/arch/h8300/Kbuild b/arch/h8300/Kbuild deleted file mode 100644 index e4703f3534cc..000000000000 --- a/arch/h8300/Kbuild +++ /dev/null @@ -1,5 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -obj-y += kernel/ mm/ boot/dts/ - -# for cleaning -subdir- += boot diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig deleted file mode 100644 index fe48c4f26cc8..000000000000 --- a/arch/h8300/Kconfig +++ /dev/null @@ -1,49 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -config H8300 - def_bool y - select ARCH_32BIT_OFF_T - select ARCH_HAS_BINFMT_FLAT - select BINFMT_FLAT_ARGVP_ENVP_ON_STACK - select BINFMT_FLAT_OLD_ALWAYS_RAM - select GENERIC_ATOMIC64 - select HAVE_UID16 - select VIRT_TO_BUS - select GENERIC_IRQ_SHOW - select FRAME_POINTER - select GENERIC_CPU_DEVICES - select MODULES_USE_ELF_RELA - select COMMON_CLK - select ARCH_WANT_FRAME_POINTERS - select OF - select OF_IRQ - select OF_EARLY_FLATTREE - select TIMER_OF - select H8300_TMR8 - select HAVE_KERNEL_GZIP - select HAVE_KERNEL_LZO - select HAVE_ARCH_KGDB - select HAVE_ARCH_HASH - select CPU_NO_EFFICIENT_FFS - select UACCESS_MEMCPY - -config CPU_BIG_ENDIAN - def_bool y - -config GENERIC_HWEIGHT - def_bool y - -config NO_IOPORT_MAP - def_bool y - -config GENERIC_CSUM - def_bool y - -config HZ - int - default 100 - -config NR_CPUS - int - default 1 - -source "arch/h8300/Kconfig.cpu" diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu deleted file mode 100644 index c30baa0499fc..000000000000 --- a/arch/h8300/Kconfig.cpu +++ /dev/null @@ -1,99 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -config CPU_H8300H - bool - -config CPU_H8S - bool - -config H83069 - bool - select CPU_H8300H - select H8300_TMR16 - select RENESAS_H8300H_INTC - -config H8S2678 - bool - select CPU_H8S - select H8300_TPU - select RENESAS_H8S_INTC - -config RAMKERNEL - bool - -config ROMKERNEL - bool - -menu "Processor type and features" - -choice -prompt "H8/300 platform" - -config H8300_AE3068 - bool "AE-3068/69" - select H83069 - select RAMKERNEL - help - AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support - More Information. (Japanese Only) - <http://akizukidenshi.com/catalog/default.aspx> - AE-3068/69 Evaluation Board Support - More Information. - <http://www.microtronique.com/ae3069lan.htm> - -config H8300_H8MAX - bool "H8MAX" - select H83069 - select RAMKERNEL - help - H8MAX Evaluation Board Support - More Information. (Japanese Only) - <http://strawberry-linux.com/h8/index.html> - -config H8300_KANEBEBE - bool "KaneBebe" - select H83069 - select RAMKERNEL - help - KaneBebe Evalition Board Support - More Information. (Japanese Only) - <http://www.nissin-tech.com/2009/10/uclinuxkane-bebe-h83069f.html> - -config H8300H_SIM - bool "H8/300H GDB Simulator" - select H83069 - select ROMKERNEL - help - GDB Simulator Support - More Information. - <http://sourceware.org/sid/> - -config H8S_EDOSK2674 - bool "EDOSK-2674" - select H8S2678 - select RAMKERNEL - help - Renesas EDOSK-2674 Evaluation Board Support - More Information. - <http://www.azpower.com/H8-uClinux/index.html> - <http://www.renesas.eu/products/tools/introductory_evaluation_tools/evaluation_development_os_kits/edosk2674r/edosk2674r_software_tools_root.jsp> - -config H8S_SIM - bool "H8S GDB Simulator" - select H8S2678 - select ROMKERNEL - help - GDB Simulator Support - More Information. - <http://sourceware.org/sid/> - -endchoice - -config H8300_BUILTIN_DTB - string "Builtin DTB" - default "" - -config OFFSET - hex "Load offset" - default 0 - -endmenu diff --git a/arch/h8300/Kconfig.debug b/arch/h8300/Kconfig.debug deleted file mode 100644 index 295942fe3fd5..000000000000 --- a/arch/h8300/Kconfig.debug +++ /dev/null @@ -1,2 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# dummy file, do not delete diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile deleted file mode 100644 index 807f41e60ee4..000000000000 --- a/arch/h8300/Makefile +++ /dev/null @@ -1,44 +0,0 @@ -# -# arch/h8300/Makefile -# -# 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. -# -# (C) Copyright 2002-2015 Yoshinori Sato <ysato@users.sourceforge.jp> -# - -KBUILD_DEFCONFIG := edosk2674_defconfig - -cflags-$(CONFIG_CPU_H8300H) := -mh -aflags-$(CONFIG_CPU_H8300H) := -mh -Wa,--mach=h8300h -ldflags-$(CONFIG_CPU_H8300H) := -mh8300helf_linux -cflags-$(CONFIG_CPU_H8S) := -ms -aflags-$(CONFIG_CPU_H8S) := -ms -Wa,--mach=h8300s -ldflags-$(CONFIG_CPU_H8S) := -mh8300self_linux - -KBUILD_CFLAGS += $(cflags-y) -KBUILD_CFLAGS += -mint32 -fno-builtin -KBUILD_CFLAGS += -D__linux__ -KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" -KBUILD_AFLAGS += $(aflags-y) -KBUILD_LDFLAGS += $(ldflags-y) - -CHECKFLAGS += -msize-long - -ifeq ($(CROSS_COMPILE),) -CROSS_COMPILE := $(call cc-cross-prefix, h8300-unknown-linux- h8300-linux-) -endif - -libs-y += arch/$(ARCH)/lib/ - -boot := arch/h8300/boot - -vmlinux.srec vmlinux.bin zImage uImage.bin: vmlinux - $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ - -define archhelp - @echo 'vmlinux.bin - Create raw binary' - @echo 'vmlinux.srec - Create srec binary' - @echo 'zImage - Compressed kernel image' -endef diff --git a/arch/h8300/boot/Makefile b/arch/h8300/boot/Makefile deleted file mode 100644 index 8e62df20ebf9..000000000000 --- a/arch/h8300/boot/Makefile +++ /dev/null @@ -1,27 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# arch/h8300/boot/Makefile - -targets := vmlinux.srec vmlinux.bin zImage -subdir- := compressed - -OBJCOPYFLAGS_vmlinux.srec := -Osrec -OBJCOPYFLAGS_vmlinux.bin := -Obinary -OBJCOPYFLAGS_zImage := -O binary -R .note -R .comment -R .stab -R .stabstr -S - -UIMAGE_LOADADDR = $(CONFIG_RAMBASE) -UIMAGE_ENTRYADDR = $(shell /bin/bash -c 'printf "0x%08x" \ - $$[$(CONFIG_RAMBASE) + $(CONFIG_OFFSET)]') - -$(obj)/vmlinux.srec $(obj)/vmlinux.bin: vmlinux FORCE - $(call if_changed,objcopy) - -$(obj)/zImage: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - -$(obj)/compressed/vmlinux: FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed $@ - -$(obj)/uImage.bin: $(obj)/vmlinux.bin - $(call if_changed,uimage,none) - -CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec arch/$(ARCH)/uImage.bin diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile deleted file mode 100644 index 6ab2fa5ba105..000000000000 --- a/arch/h8300/boot/compressed/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# linux/arch/sh/boot/compressed/Makefile -# -# create a compressed vmlinux image from the original vmlinux -# - -targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o - -OBJECTS = $(obj)/head.o $(obj)/misc.o - -# -# IMAGE_OFFSET is the load offset of the compression loader -# Assign dummy values if these 2 variables are not defined, -# in order to suppress error message. -# -CONFIG_MEMORY_START ?= 0x00400000 -CONFIG_BOOT_LINK_OFFSET ?= 0x00280000 -IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)))) - -LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null) -LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \ - --defsym output=$(CONFIG_MEMORY_START) - -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE - $(call if_changed,ld) - -$(obj)/vmlinux.bin: vmlinux FORCE - $(call if_changed,objcopy) - -suffix-$(CONFIG_KERNEL_GZIP) := gzip -suffix-$(CONFIG_KERNEL_LZO) := lzo -compress-$(CONFIG_KERNEL_GZIP) := gzip -compress-$(CONFIG_KERNEL_LZO) := lzo_with_size - -$(obj)/vmlinux.bin.$(suffix-y): $(obj)/vmlinux.bin FORCE - $(call if_changed,$(compress-y)) - -LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T -OBJCOPYFLAGS := -O binary - -$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE - $(call if_changed,ld) - -CFLAGS_misc.o = -O0 diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S deleted file mode 100644 index 11ef509579cf..000000000000 --- a/arch/h8300/boot/compressed/head.S +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * linux/arch/h8300/boot/compressed/head.S - * - * Copyright (C) 2006 Yoshinori Sato - */ - -#include <linux/linkage.h> - - .section .text..startup,"ax" - .global startup -startup: - mov.l #startup, sp - mov.l er0, er4 - mov.l #__sbss, er0 - mov.l #__ebss, er1 - sub.l er0, er1 - shlr er1 - shlr er1 - sub.l er2, er2 -1: - mov.l er2, @er0 - adds #4, er0 - dec.l #1, er1 - bne 1b - jsr @decompress_kernel - mov.l er4, er0 - jmp @output - - .align 9 -fake_headers_as_bzImage: - .word 0 - .ascii "HdrS" ; header signature - .word 0x0202 ; header version number (>= 0x0105) - ; or else old loadlin-1.5 will fail) - .word 0 ; default_switch - .word 0 ; SETUPSEG - .word 0x1000 - .word 0 ; pointing to kernel version string - .byte 0 ; = 0, old one (LILO, Loadlin, - ; 0xTV: T=0 for LILO - ; V = version - .byte 1 ; Load flags bzImage=1 - .word 0x8000 ; size to move, when setup is not - .long 0x100000 ; 0x100000 = default for big kernel - .long 0 ; address of loaded ramdisk image - .long 0 ; its size in bytes - - .end diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c deleted file mode 100644 index 8915d8fe2e53..000000000000 --- a/arch/h8300/boot/compressed/misc.c +++ /dev/null @@ -1,76 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * arch/h8300/boot/compressed/misc.c - * - * This is a collection of several routines from gzip-1.0.3 - * adapted for Linux. - * - * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 - * - * Adapted for h8300 by Yoshinori Sato 2006 - */ - -#include <linux/uaccess.h> - -/* - * gzip declarations - */ - -#define OF(args) args -#define STATIC static - -#undef memset -#undef memcpy -#define memzero(s, n) memset((s), (0), (n)) - -extern int _end; -static unsigned long free_mem_ptr; -static unsigned long free_mem_end_ptr; - -extern char input_data[]; -extern int input_len; -extern char output[]; - -#define HEAP_SIZE 0x10000 - -#ifdef CONFIG_KERNEL_GZIP -#include "../../../../lib/decompress_inflate.c" -#endif - -#ifdef CONFIG_KERNEL_LZO -#include "../../../../lib/decompress_unlzo.c" -#endif - -void *memset(void *s, int c, size_t n) -{ - int i; - char *ss = (char *)s; - - for (i = 0; i < n; i++) - ss[i] = c; - return s; -} - -void *memcpy(void *dest, const void *src, size_t n) -{ - int i; - char *d = (char *)dest, *s = (char *)src; - - for (i = 0; i < n; i++) - d[i] = s[i]; - return dest; -} - -static void error(char *x) -{ - while (1) - ; /* Halt */ -} - -void decompress_kernel(void) -{ - free_mem_ptr = (unsigned long)&_end; - free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; - - __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error); -} diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds deleted file mode 100644 index 7f7bb419ce15..000000000000 --- a/arch/h8300/boot/compressed/vmlinux.lds +++ /dev/null @@ -1,35 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -SECTIONS -{ - .text : - { - __stext = . ; - __text = .; - *(.text..startup) - *(.text) - __etext = . ; - } - - .rodata : - { - *(.rodata) - } - . = ALIGN(0x4) ; - .data : - - { - . = ALIGN(0x4) ; - __sdata = . ; - ___data_start = . ; - *(.data.*) - } - . = ALIGN(0x4) ; - .bss : - { - __sbss = . ; - *(.bss*) - . = ALIGN(0x4) ; - __ebss = . ; - } - _end = . ; -} diff --git a/arch/h8300/boot/compressed/vmlinux.scr b/arch/h8300/boot/compressed/vmlinux.scr deleted file mode 100644 index a084903603fe..000000000000 --- a/arch/h8300/boot/compressed/vmlinux.scr +++ /dev/null @@ -1,9 +0,0 @@ -SECTIONS -{ - .data : { - input_len = .; - LONG(input_data_end - input_data) input_data = .; - *(.data) - input_data_end = .; - } -} diff --git a/arch/h8300/boot/dts/Makefile b/arch/h8300/boot/dts/Makefile deleted file mode 100644 index c36bbd1f2592..000000000000 --- a/arch/h8300/boot/dts/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -obj-y += $(addsuffix .dtb.o, $(CONFIG_H8300_BUILTIN_DTB)) - -dtb-$(CONFIG_H8300H_SIM) := h8300h_sim.dtb -dtb-$(CONFIG_H8S_SIM) := h8s_sim.dtb -dtb-$(CONFIG_H8S_EDOSK2674) := edosk2674.dtb diff --git a/arch/h8300/boot/dts/edosk2674.dts b/arch/h8300/boot/dts/edosk2674.dts deleted file mode 100644 index d1733805ea67..000000000000 --- a/arch/h8300/boot/dts/edosk2674.dts +++ /dev/null @@ -1,108 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/dts-v1/; -/ { - compatible = "renesas,edosk2674"; - #address-cells = <1>; - #size-cells = <1>; - interrupt-parent = <&h8intc>; - - chosen { - bootargs = "console=ttySC2,38400"; - stdout-path = &sci2; - }; - aliases { - serial0 = &sci0; - serial1 = &sci1; - serial2 = &sci2; - }; - - xclk: oscillator { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <33333333>; - clock-output-names = "xtal"; - }; - pllclk: pllclk { - compatible = "renesas,h8s2678-pll-clock"; - clocks = <&xclk>; - #clock-cells = <0>; - reg = <0xffff3b 1>, <0xffff45 1>; - }; - core_clk: core_clk { - compatible = "renesas,h8300-div-clock"; - clocks = <&pllclk>; - #clock-cells = <0>; - reg = <0xffff3b 1>; - renesas,width = <3>; - }; - fclk: fclk { - compatible = "fixed-factor-clock"; - clocks = <&core_clk>; - #clock-cells = <0>; - clock-div = <1>; - clock-mult = <1>; - }; - - memory@400000 { - device_type = "memory"; - reg = <0x400000 0x800000>; - }; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - cpu@0 { - compatible = "renesas,h8300"; - clock-frequency = <33333333>; - }; - }; - - h8intc: interrupt-controller@fffe00 { - compatible = "renesas,h8s-intc", "renesas,h8300-intc"; - #interrupt-cells = <2>; - interrupt-controller; - reg = <0xfffe00 24>; - }; - - bsc: memory-controller@fffec0 { - compatible = "renesas,h8s-bsc", "renesas,h8300-bsc"; - reg = <0xfffec0 24>; - }; - - tpu: timer@ffffe0 { - compatible = "renesas,tpu"; - reg = <0xffffe0 16>, <0xfffff0 12>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - timer8: timer@ffffb0 { - compatible = "renesas,8bit-timer"; - reg = <0xffffb0 10>; - interrupts = <72 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - sci0: serial@ffff78 { - compatible = "renesas,sci"; - reg = <0xffff78 8>; - interrupts = <88 0>, <89 0>, <90 0>, <91 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - sci1: serial@ffff80 { - compatible = "renesas,sci"; - reg = <0xffff80 8>; - interrupts = <92 0>, <93 0>, <94 0>, <95 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - sci2: serial@ffff88 { - compatible = "renesas,sci"; - reg = <0xffff88 8>; - interrupts = <96 0>, <97 0>, <98 0>, <99 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; -}; diff --git a/arch/h8300/boot/dts/h8300h_sim.dts b/arch/h8300/boot/dts/h8300h_sim.dts deleted file mode 100644 index 595398b9d018..000000000000 --- a/arch/h8300/boot/dts/h8300h_sim.dts +++ /dev/null @@ -1,97 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/dts-v1/; -/ { - compatible = "gnu,gdbsim"; - #address-cells = <1>; - #size-cells = <1>; - interrupt-parent = <&h8intc>; - - chosen { - bootargs = "earlyprintk=h8300-sim"; - stdout-path = <&sci0>; - }; - aliases { - serial0 = &sci0; - serial1 = &sci1; - }; - - xclk: oscillator { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <20000000>; - clock-output-names = "xtal"; - }; - core_clk: core_clk { - compatible = "renesas,h8300-div-clock"; - clocks = <&xclk>; - #clock-cells = <0>; - reg = <0xfee01b 2>; - renesas,width = <2>; - }; - fclk: fclk { - compatible = "fixed-factor-clock"; - clocks = <&core_clk>; - #clock-cells = <0>; - clock-div = <1>; - clock-mult = <1>; - }; - - memory@400000 { - device_type = "memory"; - reg = <0x400000 0x400000>; - }; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - cpu@0 { - compatible = "renesas,h8300"; - clock-frequency = <20000000>; - }; - }; - - h8intc: interrupt-controller@fee012 { - compatible = "renesas,h8300h-intc", "renesas,h8300-intc"; - #interrupt-cells = <2>; - interrupt-controller; - reg = <0xfee012 7>; - }; - - bsc: memory-controller@fee01e { - compatible = "renesas,h8300h-bsc", "renesas,h8300-bsc"; - reg = <0xfee01e 8>; - }; - - timer8: timer@ffff80 { - compatible = "renesas,8bit-timer"; - reg = <0xffff80 10>; - interrupts = <36 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - timer16: timer@ffff68 { - compatible = "renesas,16bit-timer"; - reg = <0xffff68 8>, <0xffff60 8>; - interrupts = <26 0>; - renesas,channel = <0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - sci0: serial@ffffb0 { - compatible = "renesas,sci"; - reg = <0xffffb0 8>; - interrupts = <52 0>, <53 0>, <54 0>, <55 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - sci1: serial@ffffb8 { - compatible = "renesas,sci"; - reg = <0xffffb8 8>; - interrupts = <56 0>, <57 0>, <58 0>, <59 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; -}; diff --git a/arch/h8300/boot/dts/h8s_sim.dts b/arch/h8300/boot/dts/h8s_sim.dts deleted file mode 100644 index 932cc3c5a81b..000000000000 --- a/arch/h8300/boot/dts/h8s_sim.dts +++ /dev/null @@ -1,100 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/dts-v1/; -/ { - compatible = "gnu,gdbsim"; - #address-cells = <1>; - #size-cells = <1>; - interrupt-parent = <&h8intc>; - - chosen { - bootargs = "earlyprintk=h8300-sim"; - stdout-path = <&sci0>; - }; - aliases { - serial0 = &sci0; - serial1 = &sci1; - }; - - xclk: oscillator { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <33333333>; - clock-output-names = "xtal"; - }; - pllclk: pllclk { - compatible = "renesas,h8s2678-pll-clock"; - clocks = <&xclk>; - #clock-cells = <0>; - reg = <0xfee03b 2>, <0xfee045 2>; - }; - core_clk: core_clk { - compatible = "renesas,h8300-div-clock"; - clocks = <&pllclk>; - #clock-cells = <0>; - reg = <0xfee03b 2>; - renesas,width = <3>; - }; - fclk: fclk { - compatible = "fixed-factor-clock"; - clocks = <&core_clk>; - #clock-cells = <0>; - clock-div = <1>; - clock-mult = <1>; - }; - - memory@400000 { - device_type = "memory"; - reg = <0x400000 0x800000>; - }; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - cpu@0 { - compatible = "renesas,h8300"; - clock-frequency = <33333333>; - }; - }; - - h8intc: interrupt-controller@fffe00 { - compatible = "renesas,h8s-intc", "renesas,h8300-intc"; - #interrupt-cells = <2>; - interrupt-controller; - reg = <0xfffe00 24>; - }; - - bsc: memory-controller@fffec0 { - compatible = "renesas,h8s-bsc", "renesas,h8300-bsc"; - reg = <0xfffec0 24>; - }; - - tpu: timer@ffffe0 { - compatible = "renesas,tpu"; - reg = <0xffffe0 16>, <0xfffff0 12>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - timer8: timer@ffffb0 { - compatible = "renesas,8bit-timer"; - reg = <0xffffb0 10>; - interrupts = <72 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - - sci0: serial@ffff78 { - compatible = "renesas,sci"; - reg = <0xffff78 8>; - interrupts = <88 0>, <89 0>, <90 0>, <91 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; - sci1: serial@ffff80 { - compatible = "renesas,sci"; - reg = <0xffff80 8>; - interrupts = <92 0>, <93 0>, <94 0>, <95 0>; - clocks = <&fclk>; - clock-names = "fck"; - }; -}; diff --git a/arch/h8300/configs/edosk2674_defconfig b/arch/h8300/configs/edosk2674_defconfig deleted file mode 100644 index 23791dcf6c25..000000000000 --- a/arch/h8300/configs/edosk2674_defconfig +++ /dev/null @@ -1,48 +0,0 @@ -# CONFIG_LOCALVERSION_AUTO is not set -# CONFIG_USELIB is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -# CONFIG_UID16 is not set -# CONFIG_SYSFS_SYSCALL is not set -# CONFIG_KALLSYMS is not set -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_ADVISE_SYSCALLS is not set -CONFIG_EMBEDDED=y -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_COMPAT_BRK is not set -CONFIG_SLOB=y -# CONFIG_BLOCK is not set -CONFIG_H8S_SIM=y -CONFIG_H8300_BUILTIN_DTB="h8s_sim" -# CONFIG_BINFMT_SCRIPT is not set -CONFIG_BINFMT_FLAT=y -# CONFIG_COREDUMP is not set -# CONFIG_UEVENT_HELPER is not set -# CONFIG_STANDALONE is not set -# CONFIG_PREVENT_FIRMWARE_BUILD is not set -# CONFIG_FW_LOADER is not set -# CONFIG_ALLOW_DEV_COREDUMP is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set -CONFIG_SERIAL_SH_SCI=y -CONFIG_SERIAL_SH_SCI_CONSOLE=y -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -# CONFIG_INOTIFY_USER is not set -# CONFIG_PROC_FS is not set -# CONFIG_SYSFS is not set -# CONFIG_MISC_FILESYSTEMS is not set -CONFIG_DEBUG_INFO=y -# CONFIG_ENABLE_MUST_CHECK is not set diff --git a/arch/h8300/configs/h8300h-sim_defconfig b/arch/h8300/configs/h8300h-sim_defconfig deleted file mode 100644 index 7fc9c2f0acc0..000000000000 --- a/arch/h8300/configs/h8300h-sim_defconfig +++ /dev/null @@ -1,48 +0,0 @@ -# CONFIG_LOCALVERSION_AUTO is not set -# CONFIG_USELIB is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -# CONFIG_UID16 is not set -# CONFIG_SYSFS_SYSCALL is not set -# CONFIG_KALLSYMS is not set -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_ADVISE_SYSCALLS is not set -CONFIG_EMBEDDED=y -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_COMPAT_BRK is not set -CONFIG_SLOB=y -# CONFIG_BLOCK is not set -CONFIG_H8300H_SIM=y -CONFIG_H8300_BUILTIN_DTB="h8300h_sim" -# CONFIG_BINFMT_SCRIPT is not set -CONFIG_BINFMT_FLAT=y -# CONFIG_COREDUMP is not set -# CONFIG_UEVENT_HELPER is not set -# CONFIG_STANDALONE is not set -# CONFIG_PREVENT_FIRMWARE_BUILD is not set -# CONFIG_FW_LOADER is not set -# CONFIG_ALLOW_DEV_COREDUMP is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set -CONFIG_SERIAL_SH_SCI=y -CONFIG_SERIAL_SH_SCI_EARLYCON=y -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -# CONFIG_INOTIFY_USER is not set -# CONFIG_PROC_FS is not set -# CONFIG_SYSFS is not set -# CONFIG_MISC_FILESYSTEMS is not set -CONFIG_DEBUG_INFO=y -# CONFIG_ENABLE_MUST_CHECK is not set diff --git a/arch/h8300/configs/h8s-sim_defconfig b/arch/h8300/configs/h8s-sim_defconfig deleted file mode 100644 index 23791dcf6c25..000000000000 --- a/arch/h8300/configs/h8s-sim_defconfig +++ /dev/null @@ -1,48 +0,0 @@ -# CONFIG_LOCALVERSION_AUTO is not set -# CONFIG_USELIB is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -# CONFIG_UID16 is not set -# CONFIG_SYSFS_SYSCALL is not set -# CONFIG_KALLSYMS is not set -# CONFIG_BASE_FULL is not set -# CONFIG_FUTEX is not set -# CONFIG_EPOLL is not set -# CONFIG_SIGNALFD is not set -# CONFIG_TIMERFD is not set -# CONFIG_EVENTFD is not set -# CONFIG_AIO is not set -# CONFIG_ADVISE_SYSCALLS is not set -CONFIG_EMBEDDED=y -# CONFIG_VM_EVENT_COUNTERS is not set -# CONFIG_COMPAT_BRK is not set -CONFIG_SLOB=y -# CONFIG_BLOCK is not set -CONFIG_H8S_SIM=y -CONFIG_H8300_BUILTIN_DTB="h8s_sim" -# CONFIG_BINFMT_SCRIPT is not set -CONFIG_BINFMT_FLAT=y -# CONFIG_COREDUMP is not set -# CONFIG_UEVENT_HELPER is not set -# CONFIG_STANDALONE is not set -# CONFIG_PREVENT_FIRMWARE_BUILD is not set -# CONFIG_FW_LOADER is not set -# CONFIG_ALLOW_DEV_COREDUMP is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -# CONFIG_UNIX98_PTYS is not set -# CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set -CONFIG_SERIAL_SH_SCI=y -CONFIG_SERIAL_SH_SCI_CONSOLE=y -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -# CONFIG_FILE_LOCKING is not set -# CONFIG_DNOTIFY is not set -# CONFIG_INOTIFY_USER is not set -# CONFIG_PROC_FS is not set -# CONFIG_SYSFS is not set -# CONFIG_MISC_FILESYSTEMS is not set -CONFIG_DEBUG_INFO=y -# CONFIG_ENABLE_MUST_CHECK is not set diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild deleted file mode 100644 index e23139c8fc0d..000000000000 --- a/arch/h8300/include/asm/Kbuild +++ /dev/null @@ -1,8 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -generic-y += asm-offsets.h -generic-y += cmpxchg.h -generic-y += extable.h -generic-y += kvm_para.h -generic-y += mcs_spinlock.h -generic-y += parport.h -generic-y += spinlock.h diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h deleted file mode 100644 index 4489e3d6edd3..000000000000 --- a/arch/h8300/include/asm/bitops.h +++ /dev/null @@ -1,179 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_BITOPS_H -#define _H8300_BITOPS_H - -/* - * Copyright 1992, Linus Torvalds. - * Copyright 2002, Yoshinori Sato - */ - -#include <linux/compiler.h> - -#include <asm-generic/bitops/fls.h> -#include <asm-generic/bitops/__fls.h> -#include <asm-generic/bitops/fls64.h> - -#ifdef __KERNEL__ - -#ifndef _LINUX_BITOPS_H -#error only <linux/bitops.h> can be included directly -#endif - -/* - * Function prototypes to keep gcc -Wall happy - */ - -/* - * ffz = Find First Zero in word. Undefined if no zero exists, - * so code should check against ~0UL first.. - */ -static inline unsigned long ffz(unsigned long word) -{ - unsigned long result; - - result = -1; - __asm__("1:\n\t" - "shlr.l %1\n\t" - "adds #1,%0\n\t" - "bcs 1b" - : "=r"(result),"=r"(word) - : "0"(result), "1"(word)); - return result; -} - -#define H8300_GEN_BITOP(FNAME, OP) \ -static inline void FNAME(int nr, volatile unsigned long *addr) \ -{ \ - unsigned char *b_addr; \ - unsigned char bit = nr & 7; \ - \ - b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3); \ - if (__builtin_constant_p(nr)) { \ - __asm__(OP " %1,%0" : "+WU"(*b_addr) : "i"(nr & 7)); \ - } else { \ - __asm__(OP " %s1,%0" : "+WU"(*b_addr) : "r"(bit)); \ - } \ -} - -H8300_GEN_BITOP(set_bit, "bset") -H8300_GEN_BITOP(clear_bit, "bclr") -H8300_GEN_BITOP(change_bit, "bnot") -#define __set_bit(nr, addr) set_bit((nr), (addr)) -#define __clear_bit(nr, addr) clear_bit((nr), (addr)) -#define __change_bit(nr, addr) change_bit((nr), (addr)) - -#undef H8300_GEN_BITOP - -static inline int test_bit(int nr, const volatile unsigned long *addr) -{ - int ret = 0; - unsigned char *b_addr; - unsigned char bit = nr & 7; - - b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3); - if (__builtin_constant_p(nr)) { - __asm__("bld %Z2,%1\n\t" - "rotxl %0\n\t" - : "=r"(ret) - : "WU"(*b_addr), "i"(nr & 7), "0"(ret) : "cc"); - } else { - __asm__("btst %w2,%1\n\t" - "beq 1f\n\t" - "inc.l #1,%0\n" - "1:" - : "=r"(ret) - : "WU"(*b_addr), "r"(bit), "0"(ret) : "cc"); - } - return ret; -} - -#define __test_bit(nr, addr) test_bit(nr, addr) - -#define H8300_GEN_TEST_BITOP(FNNAME, OP) \ -static inline int FNNAME(int nr, void *addr) \ -{ \ - int retval = 0; \ - char ccrsave; \ - unsigned char *b_addr; \ - unsigned char bit = nr & 7; \ - \ - b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3); \ - if (__builtin_constant_p(nr)) { \ - __asm__("stc ccr,%s2\n\t" \ - "orc #0x80,ccr\n\t" \ - "bld %4,%1\n\t" \ - OP " %4,%1\n\t" \ - "rotxl.l %0\n\t" \ - "ldc %s2,ccr" \ - : "=r"(retval), "+WU" (*b_addr), "=&r"(ccrsave) \ - : "0"(retval), "i"(nr & 7) : "cc"); \ - } else { \ - __asm__("stc ccr,%t3\n\t" \ - "orc #0x80,ccr\n\t" \ - "btst %s3,%1\n\t" \ - OP " %s3,%1\n\t" \ - "beq 1f\n\t" \ - "inc.l #1,%0\n\t" \ - "1:\n" \ - "ldc %t3,ccr" \ - : "=r"(retval), "+WU" (*b_addr) \ - : "0" (retval), "r"(bit) : "cc"); \ - } \ - return retval; \ -} \ - \ -static inline int __ ## FNNAME(int nr, void *addr) \ -{ \ - int retval = 0; \ - unsigned char *b_addr; \ - unsigned char bit = nr & 7; \ - \ - b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3); \ - if (__builtin_constant_p(nr)) { \ - __asm__("bld %3,%1\n\t" \ - OP " %3,%1\n\t" \ - "rotxl.l %0\n\t" \ - : "=r"(retval), "+WU"(*b_addr) \ - : "0" (retval), "i"(nr & 7)); \ - } else { \ - __asm__("btst %s3,%1\n\t" \ - OP " %s3,%1\n\t" \ - "beq 1f\n\t" \ - "inc.l #1,%0\n\t" \ - "1:" \ - : "=r"(retval), "+WU"(*b_addr) \ - : "0" (retval), "r"(bit)); \ - } \ - return retval; \ -} - -H8300_GEN_TEST_BITOP(test_and_set_bit, "bset") -H8300_GEN_TEST_BITOP(test_and_clear_bit, "bclr") -H8300_GEN_TEST_BITOP(test_and_change_bit, "bnot") -#undef H8300_GEN_TEST_BITOP - -#include <asm-generic/bitops/ffs.h> - -static inline unsigned long __ffs(unsigned long word) -{ - unsigned long result; - - result = -1; - __asm__("1:\n\t" - "shlr.l %1\n\t" - "adds #1,%0\n\t" - "bcc 1b" - : "=r" (result),"=r"(word) - : "0"(result), "1"(word)); - return result; -} - -#include <asm-generic/bitops/sched.h> -#include <asm-generic/bitops/hweight.h> -#include <asm-generic/bitops/lock.h> -#include <asm-generic/bitops/le.h> -#include <asm-generic/bitops/ext2-atomic.h> - -#endif /* __KERNEL__ */ - -#endif /* _H8300_BITOPS_H */ diff --git a/arch/h8300/include/asm/bug.h b/arch/h8300/include/asm/bug.h deleted file mode 100644 index 00fe5e966bb5..000000000000 --- a/arch/h8300/include/asm/bug.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_BUG_H -#define _H8300_BUG_H - -/* always true */ -#define is_valid_bugaddr(addr) (1) - -#include <asm-generic/bug.h> - -struct pt_regs; -extern void die(const char *str, struct pt_regs *fp, unsigned long err); - -#endif diff --git a/arch/h8300/include/asm/byteorder.h b/arch/h8300/include/asm/byteorder.h deleted file mode 100644 index 6eaa7ad5fc2c..000000000000 --- a/arch/h8300/include/asm/byteorder.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __H8300_BYTEORDER_H__ -#define __H8300_BYTEORDER_H__ - -#include <linux/byteorder/big_endian.h> - -#endif diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h deleted file mode 100644 index 4243eb319acf..000000000000 --- a/arch/h8300/include/asm/cache.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ARCH_H8300_CACHE_H -#define __ARCH_H8300_CACHE_H - -/* bytes per L1 cache line */ -#define L1_CACHE_SHIFT 2 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) - -#define __cacheline_aligned -#define ____cacheline_aligned - -#endif diff --git a/arch/h8300/include/asm/elf.h b/arch/h8300/include/asm/elf.h deleted file mode 100644 index 029647cda44c..000000000000 --- a/arch/h8300/include/asm/elf.h +++ /dev/null @@ -1,102 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_H8300_ELF_H -#define __ASM_H8300_ELF_H - -/* - * ELF register definitions.. - */ - -#include <asm/ptrace.h> -#include <asm/user.h> - -typedef unsigned long elf_greg_t; - -#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -typedef unsigned long elf_fpregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture. - */ -#define elf_check_arch(x) ((x)->e_machine == EM_H8_300) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB -#define ELF_ARCH EM_H8_300 -#if defined(CONFIG_CPU_H8300H) -#define ELF_CORE_EFLAGS 0x810000 -#endif -#if defined(CONFIG_CPU_H8S) -#define ELF_CORE_EFLAGS 0x820000 -#endif - -#define ELF_PLAT_INIT(_r) do { (_r)->er1 = 0; } while (0) - -#define ELF_EXEC_PAGESIZE 4096 - -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -#define ELF_ET_DYN_BASE 0xD0000000UL - -/* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. */ - -#define ELF_HWCAP (0) - -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. */ - -#define ELF_PLATFORM (NULL) - -#define R_H8_NONE 0 -#define R_H8_DIR32 1 -#define R_H8_DIR32_28 2 -#define R_H8_DIR32_24 3 -#define R_H8_DIR32_16 4 -#define R_H8_DIR32U 6 -#define R_H8_DIR32U_28 7 -#define R_H8_DIR32U_24 8 -#define R_H8_DIR32U_20 9 -#define R_H8_DIR32U_16 10 -#define R_H8_DIR24 11 -#define R_H8_DIR24_20 12 -#define R_H8_DIR24_16 13 -#define R_H8_DIR24U 14 -#define R_H8_DIR24U_20 15 -#define R_H8_DIR24U_16 16 -#define R_H8_DIR16 17 -#define R_H8_DIR16U 18 -#define R_H8_DIR16S_32 19 -#define R_H8_DIR16S_28 20 -#define R_H8_DIR16S_24 21 -#define R_H8_DIR16S_20 22 -#define R_H8_DIR16S 23 -#define R_H8_DIR8 24 -#define R_H8_DIR8U 25 -#define R_H8_DIR8Z_32 26 -#define R_H8_DIR8Z_28 27 -#define R_H8_DIR8Z_24 28 -#define R_H8_DIR8Z_20 29 -#define R_H8_DIR8Z_16 30 -#define R_H8_PCREL16 31 -#define R_H8_PCREL8 32 -#define R_H8_BPOS 33 -#define R_H8_PCREL32 34 -#define R_H8_GOT32O 35 -#define R_H8_GOT16O 36 -#define R_H8_DIR16A8 59 -#define R_H8_DIR16R8 60 -#define R_H8_DIR24A8 61 -#define R_H8_DIR24R8 62 -#define R_H8_DIR32A16 63 -#define R_H8_ABS32 65 -#define R_H8_ABS32A16 127 - -#endif diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h deleted file mode 100644 index 78070f924177..000000000000 --- a/arch/h8300/include/asm/flat.h +++ /dev/null @@ -1,36 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * arch/h8300/asm/include/flat.h -- uClinux flat-format executables - */ - -#ifndef __H8300_FLAT_H__ -#define __H8300_FLAT_H__ - -#include <asm/unaligned.h> - -/* - * on the H8 a couple of the relocations have an instruction in the - * top byte. As there can only be 24bits of address space, we just - * always preserve that 8bits at the top, when it isn't an instruction - * is is 0 (davidm@snapgear.com) - */ - -#define flat_get_relocate_addr(rel) (rel & ~0x00000001) -static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, - u32 *addr) -{ - u32 val = get_unaligned((__force u32 *)rp); - if (!(flags & FLAT_FLAG_GOTPIC)) - val &= 0x00ffffff; - *addr = val; - return 0; -} - -static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel) -{ - u32 *p = (__force u32 *)rp; - put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p); - return 0; -} - -#endif /* __H8300_FLAT_H__ */ diff --git a/arch/h8300/include/asm/hash.h b/arch/h8300/include/asm/hash.h deleted file mode 100644 index 2960b4c9e4ed..000000000000 --- a/arch/h8300/include/asm/hash.h +++ /dev/null @@ -1,54 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_HASH_H -#define _ASM_HASH_H - -/* - * The later H8SX models have a 32x32-bit multiply, but the H8/300H - * and H8S have only 16x16->32. Since it's tolerably compact, this is - * basically an inlined version of the __mulsi3 code. Since the inputs - * are not expected to be small, it's also simplfied by skipping the - * early-out checks. - * - * (Since neither CPU has any multi-bit shift instructions, a - * shift-and-add version is a non-starter.) - * - * TODO: come up with an arch-specific version of the hashing in fs/namei.c, - * since that is heavily dependent on rotates. Which, as mentioned, suck - * horribly on H8. - */ - -#if defined(CONFIG_CPU_H300H) || defined(CONFIG_CPU_H8S) - -#define HAVE_ARCH__HASH_32 1 - -/* - * Multiply by k = 0x61C88647. Fitting this into three registers requires - * one extra instruction, but reducing register pressure will probably - * make that back and then some. - * - * GCC asm note: %e1 is the high half of operand %1, while %f1 is the - * low half. So if %1 is er4, then %e1 is e4 and %f1 is r4. - * - * This has been designed to modify x in place, since that's the most - * common usage, but preserve k, since hash_64() makes two calls in - * quick succession. - */ -static inline u32 __attribute_const__ __hash_32(u32 x) -{ - u32 temp; - - asm( "mov.w %e1,%f0" - "\n mulxu.w %f2,%0" /* klow * xhigh */ - "\n mov.w %f0,%e1" /* The extra instruction */ - "\n mov.w %f1,%f0" - "\n mulxu.w %e2,%0" /* khigh * xlow */ - "\n add.w %e1,%f0" - "\n mulxu.w %f2,%1" /* klow * xlow */ - "\n add.w %f0,%e1" - : "=&r" (temp), "=r" (x) - : "%r" (GOLDEN_RATIO_32), "1" (x)); - return x; -} - -#endif -#endif /* _ASM_HASH_H */ diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h deleted file mode 100644 index 096d99580db6..000000000000 --- a/arch/h8300/include/asm/io.h +++ /dev/null @@ -1,67 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_IO_H -#define _H8300_IO_H - -#ifdef __KERNEL__ - -#include <linux/types.h> - -/* H8/300 internal I/O functions */ - -#define __raw_readb __raw_readb -static inline u8 __raw_readb(const volatile void __iomem *addr) -{ - return *(volatile u8 *)addr; -} - -#define __raw_readw __raw_readw -static inline u16 __raw_readw(const volatile void __iomem *addr) -{ - return *(volatile u16 *)addr; -} - -#define __raw_readl __raw_readl -static inline u32 __raw_readl(const volatile void __iomem *addr) -{ - return *(volatile u32 *)addr; -} - -#define __raw_writeb __raw_writeb -static inline void __raw_writeb(u8 b, const volatile void __iomem *addr) -{ - *(volatile u8 *)addr = b; -} - -#define __raw_writew __raw_writew -static inline void __raw_writew(u16 b, const volatile void __iomem *addr) -{ - *(volatile u16 *)addr = b; -} - -#define __raw_writel __raw_writel -static inline void __raw_writel(u32 b, const volatile void __iomem *addr) -{ - *(volatile u32 *)addr = b; -} - -static inline void ctrl_bclr(int b, void __iomem *addr) -{ - if (__builtin_constant_p(b)) - __asm__("bclr %1,%0" : "+WU"(*(u8 *)addr): "i"(b)); - else - __asm__("bclr %w1,%0" : "+WU"(*(u8 *)addr): "r"(b)); -} - -static inline void ctrl_bset(int b, void __iomem *addr) -{ - if (__builtin_constant_p(b)) - __asm__("bset %1,%0" : "+WU"(*(u8 *)addr): "i"(b)); - else - __asm__("bset %w1,%0" : "+WU"(*(u8 *)addr): "r"(b)); -} - -#include <asm-generic/io.h> - -#endif /* __KERNEL__ */ - -#endif /* _H8300_IO_H */ diff --git a/arch/h8300/include/asm/irq.h b/arch/h8300/include/asm/irq.h deleted file mode 100644 index 776cf06d7a59..000000000000 --- a/arch/h8300/include/asm/irq.h +++ /dev/null @@ -1,25 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_IRQ_H_ -#define _H8300_IRQ_H_ - -#if defined(CONFIG_CPU_H8300H) -#define NR_IRQS 64 -#define IRQ_CHIP h8300h_irq_chip -#define EXT_IRQ0 12 -#define EXT_IRQS 6 -#elif defined(CONFIG_CPU_H8S) -#define NR_IRQS 128 -#define IRQ_CHIP h8s_irq_chip -#define EXT_IRQ0 16 -#define EXT_IRQS 16 -#endif - -static inline int irq_canonicalize(int irq) -{ - return irq; -} - -void h8300_init_ipr(void); -extern struct irq_chip h8300h_irq_chip; -extern struct irq_chip h8s_irq_chip; -#endif /* _H8300_IRQ_H_ */ diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h deleted file mode 100644 index 48756b7f405e..000000000000 --- a/arch/h8300/include/asm/irqflags.h +++ /dev/null @@ -1,97 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_IRQFLAGS_H -#define _H8300_IRQFLAGS_H - -#ifdef CONFIG_CPU_H8300H -typedef unsigned char h8300flags; - -static inline h8300flags arch_local_save_flags(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_disable(void) -{ - __asm__ volatile ("orc #0xc0,ccr"); -} - -static inline void arch_local_irq_enable(void) -{ - __asm__ volatile ("andc #0x3f,ccr"); -} - -static inline h8300flags arch_local_irq_save(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\t" - "orc #0xc0,ccr" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_restore(h8300flags flags) -{ - __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); -} - -static inline int arch_irqs_disabled_flags(unsigned long flags) -{ - return (flags & 0xc0) == 0xc0; -} -#endif -#ifdef CONFIG_CPU_H8S -typedef unsigned short h8300flags; - -static inline h8300flags arch_local_save_flags(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_disable(void) -{ - __asm__ volatile ("orc #0x80,ccr\n\t"); -} - -static inline void arch_local_irq_enable(void) -{ - __asm__ volatile ("andc #0x7f,ccr\n\t" - "andc #0xf0,exr\n\t"); -} - -static inline h8300flags arch_local_irq_save(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\t" - "stc exr,%x0\n\t" - "orc #0x80,ccr\n\t" - : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_restore(h8300flags flags) -{ - __asm__ volatile ("ldc %w0,ccr\n\t" - "ldc %x0,exr" - : : "r" (flags) : "cc"); -} - -static inline int arch_irqs_disabled_flags(h8300flags flags) -{ - return (flags & 0x0080) == 0x0080; -} - -#endif - -static inline int arch_irqs_disabled(void) -{ - return arch_irqs_disabled_flags(arch_local_save_flags()); -} - -#endif /* _H8300_IRQFLAGS_H */ diff --git a/arch/h8300/include/asm/kgdb.h b/arch/h8300/include/asm/kgdb.h deleted file mode 100644 index 726ff8fdfc18..000000000000 --- a/arch/h8300/include/asm/kgdb.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * 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. - */ - -#ifndef _ASM_H8300_KGDB_H -#define _ASM_H8300_KGDB_H - -#define CACHE_FLUSH_IS_SAFE 1 -#define BUFMAX 2048 - -enum regnames { - GDB_ER0, GDB_ER1, GDB_ER2, GDB_ER3, - GDB_ER4, GDB_ER5, GDB_ER6, GDB_SP, - GDB_CCR, GDB_PC, - GDB_CYCLLE, -#if defined(CONFIG_CPU_H8S) - GDB_EXR, -#endif - GDB_TICK, GDB_INST, -#if defined(CONFIG_CPU_H8S) - GDB_MACH, GDB_MACL, -#endif - /* do not change the last entry or anything below! */ - GDB_NUMREGBYTES, /* number of registers */ -}; - -#define GDB_SIZEOF_REG sizeof(u32) -#if defined(CONFIG_CPU_H8300H) -#define DBG_MAX_REG_NUM (13) -#elif defined(CONFIG_CPU_H8S) -#define DBG_MAX_REG_NUM (14) -#endif -#define NUMREGBYTES (DBG_MAX_REG_NUM * GDB_SIZEOF_REG) - -#define BREAK_INSTR_SIZE 2 -static inline void arch_kgdb_breakpoint(void) -{ - __asm__ __volatile__("trapa #2"); -} - -#endif /* _ASM_H8300_KGDB_H */ diff --git a/arch/h8300/include/asm/mmu_context.h b/arch/h8300/include/asm/mmu_context.h deleted file mode 100644 index a9f550f5b5ec..000000000000 --- a/arch/h8300/include/asm/mmu_context.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_H8300_MMU_CONTEXT_H -#define _ASM_H8300_MMU_CONTEXT_H - -#include <asm-generic/nommu_context.h> - -#endif /* _ASM_H8300_MMU_CONTEXT_H */ diff --git a/arch/h8300/include/asm/page.h b/arch/h8300/include/asm/page.h deleted file mode 100644 index 53e037544239..000000000000 --- a/arch/h8300/include/asm/page.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_PAGE_H -#define _H8300_PAGE_H - -#include <asm-generic/page.h> -#include <linux/types.h> - -#define MAP_NR(addr) (((uintptr_t)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) - -#ifndef __ASSEMBLY__ -extern unsigned long rom_length; -extern unsigned long memory_start; -extern unsigned long memory_end; -extern unsigned long _ramend; -#endif - -#endif diff --git a/arch/h8300/include/asm/page_offset.h b/arch/h8300/include/asm/page_offset.h deleted file mode 100644 index 888576d7cc2a..000000000000 --- a/arch/h8300/include/asm/page_offset.h +++ /dev/null @@ -1,2 +0,0 @@ - -#define PAGE_OFFSET_RAW 0x00000000 diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h deleted file mode 100644 index ea833a5d8bcf..000000000000 --- a/arch/h8300/include/asm/pgtable.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_PGTABLE_H -#define _H8300_PGTABLE_H -#include <asm-generic/pgtable-nopud.h> -extern void paging_init(void); -#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ -#define __swp_type(x) (0) -#define __swp_offset(x) (0) -#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define kern_addr_valid(addr) (1) -#define pgprot_writecombine(prot) (prot) -#define pgprot_noncached pgprot_writecombine - -static inline int pte_file(pte_t pte) { return 0; } -#define swapper_pg_dir ((pgd_t *) 0) -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ -#define ZERO_PAGE(vaddr) (virt_to_page(0)) - -/* - * These would be in other places but having them here reduces the diffs. - */ -extern unsigned int kobjsize(const void *objp); -extern int is_in_rom(unsigned long); - -/* - * All 32bit addresses are effectively valid for vmalloc... - * Sort of meaningless for non-VM targets. - */ -#define VMALLOC_START 0 -#define VMALLOC_END 0xffffffff - -#define arch_enter_lazy_cpu_mode() do {} while (0) - -#endif /* _H8300_PGTABLE_H */ diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h deleted file mode 100644 index ba171aa4dacb..000000000000 --- a/arch/h8300/include/asm/processor.h +++ /dev/null @@ -1,126 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * include/asm-h8300/processor.h - * - * Copyright (C) 2002 Yoshinori Sato - * - * Based on: linux/asm-m68nommu/processor.h - * - * Copyright (C) 1995 Hamish Macdonald - */ - -#ifndef __ASM_H8300_PROCESSOR_H -#define __ASM_H8300_PROCESSOR_H - -#include <linux/compiler.h> -#include <asm/ptrace.h> -#include <asm/current.h> - -static inline unsigned long rdusp(void) -{ - extern unsigned int _sw_usp; - - return _sw_usp; -} - -static inline void wrusp(unsigned long usp) -{ - extern unsigned int _sw_usp; - - _sw_usp = usp; -} - -/* - * User space process size: 3.75GB. This is hardcoded into a few places, - * so don't change it unless you know what you are doing. - */ -#define TASK_SIZE (0xFFFFFFFFUL) - -#ifdef __KERNEL__ -#define STACK_TOP TASK_SIZE -#define STACK_TOP_MAX STACK_TOP -#endif - -/* - * This decides where the kernel will search for a free chunk of vm - * space during mmap's. We won't be using it - */ -#define TASK_UNMAPPED_BASE 0 - -struct thread_struct { - unsigned long ksp; /* kernel stack pointer */ - unsigned long usp; /* user stack pointer */ - unsigned long ccr; /* saved status register */ - unsigned long esp0; /* points to SR of stack frame */ - struct { - unsigned short *addr; - unsigned short inst; - } breakinfo; -}; - -#define INIT_THREAD { \ - .ksp = sizeof(init_stack) + (unsigned long)init_stack, \ - .usp = 0, \ - .ccr = PS_S, \ - .esp0 = 0, \ - .breakinfo = { \ - .addr = (unsigned short *)-1, \ - .inst = 0 \ - } \ -} - -/* - * Do necessary setup to start up a newly executed thread. - * - * pass the data segment into user programs if it exists, - * it can't hurt anything as far as I can tell - */ -#if defined(CONFIG_CPU_H8300H) -#define start_thread(_regs, _pc, _usp) \ -do { \ - (_regs)->pc = (_pc); \ - (_regs)->ccr = 0x00; /* clear all flags */ \ - (_regs)->er5 = current->mm->start_data; /* GOT base */ \ - (_regs)->sp = ((unsigned long)(_usp)) - sizeof(unsigned long) * 3; \ -} while (0) -#endif -#if defined(CONFIG_CPU_H8S) -#define start_thread(_regs, _pc, _usp) \ -do { \ - (_regs)->pc = (_pc); \ - (_regs)->ccr = 0x00; /* clear kernel flag */ \ - (_regs)->exr = 0x78; /* enable all interrupts */ \ - (_regs)->er5 = current->mm->start_data; /* GOT base */ \ - /* 14 = space for retaddr(4), vector(4), er0(4) and exr(2) on stack */ \ - (_regs)->sp = ((unsigned long)(_usp)) - 14; \ -} while (0) -#endif - -/* Forward declaration, a strange C thing */ -struct task_struct; - -/* Free all resources held by a thread. */ -static inline void release_thread(struct task_struct *dead_task) -{ -} - -unsigned long __get_wchan(struct task_struct *p); - -#define KSTK_EIP(tsk) \ - ({ \ - unsigned long eip = 0; \ - if ((tsk)->thread.esp0 > PAGE_SIZE && \ - MAP_NR((tsk)->thread.esp0) < max_mapnr) \ - eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \ - eip; }) - -#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) - -#define cpu_relax() barrier() - -#define HARD_RESET_NOW() ({ \ - local_irq_disable(); \ - asm("jmp @@0"); \ -}) - -#endif diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h deleted file mode 100644 index 66d383848ff1..000000000000 --- a/arch/h8300/include/asm/ptrace.h +++ /dev/null @@ -1,39 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_PTRACE_H -#define _H8300_PTRACE_H - -#include <uapi/asm/ptrace.h> - -struct task_struct; - -#ifndef __ASSEMBLY__ -#ifndef PS_S -#define PS_S (0x10) -#endif - -#if defined(CONFIG_CPU_H8300H) -#define H8300_REGS_NO 11 -#endif -#if defined(CONFIG_CPU_H8S) -#define H8300_REGS_NO 12 -#endif - -#define arch_has_single_step() (1) - -#define user_mode(regs) (!((regs)->ccr & PS_S)) -#define instruction_pointer(regs) ((regs)->pc) -#define profile_pc(regs) instruction_pointer(regs) -#define user_stack_pointer(regs) ((regs)->sp) -#define current_pt_regs() ((struct pt_regs *) \ - (THREAD_SIZE + (unsigned long)current_thread_info()) - 1) -#define signal_pt_regs() ((struct pt_regs *)current->thread.esp0) -#define current_user_stack_pointer() rdusp() -#define task_pt_regs(task) \ - ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1) - -extern long h8300_get_reg(struct task_struct *task, int regno); -extern int h8300_put_reg(struct task_struct *task, int regno, - unsigned long data); - -#endif /* __ASSEMBLY__ */ -#endif /* _H8300_PTRACE_H */ diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h deleted file mode 100644 index a42f32ca530f..000000000000 --- a/arch/h8300/include/asm/signal.h +++ /dev/null @@ -1,23 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_SIGNAL_H -#define _H8300_SIGNAL_H - -#include <uapi/asm/signal.h> - -/* Most things should be clean enough to redefine this at will, if care - is taken to make libc match. */ - -#define _NSIG 64 -#define _NSIG_BPW 32 -#define _NSIG_WORDS (_NSIG / _NSIG_BPW) - -typedef unsigned long old_sigset_t; /* at least 32 bits */ - -typedef struct { - unsigned long sig[_NSIG_WORDS]; -} sigset_t; - -#define __ARCH_HAS_SA_RESTORER -#include <asm/sigcontext.h> - -#endif /* _H8300_SIGNAL_H */ diff --git a/arch/h8300/include/asm/smp.h b/arch/h8300/include/asm/smp.h deleted file mode 100644 index 9e9bd7e58922..000000000000 --- a/arch/h8300/include/asm/smp.h +++ /dev/null @@ -1 +0,0 @@ -/* nothing required here yet */ diff --git a/arch/h8300/include/asm/string.h b/arch/h8300/include/asm/string.h deleted file mode 100644 index 78e45bb2fef0..000000000000 --- a/arch/h8300/include/asm/string.h +++ /dev/null @@ -1,18 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_STRING_H_ -#define _H8300_STRING_H_ - -#ifdef __KERNEL__ /* only set these up for kernel code */ - -#include <asm/setup.h> -#include <asm/page.h> - -#define __HAVE_ARCH_MEMSET -extern void *memset(void *s, int c, size_t count); - -#define __HAVE_ARCH_MEMCPY -extern void *memcpy(void *d, const void *s, size_t count); - -#endif /* KERNEL */ - -#endif diff --git a/arch/h8300/include/asm/switch_to.h b/arch/h8300/include/asm/switch_to.h deleted file mode 100644 index 2b7e9555bcd1..000000000000 --- a/arch/h8300/include/asm/switch_to.h +++ /dev/null @@ -1,52 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_SWITCH_TO_H -#define _H8300_SWITCH_TO_H - -/* - * switch_to(n) should switch tasks to task ptr, first checking that - * ptr isn't the current task, in which case it does nothing. This - * also clears the TS-flag if the task we switched to has used the - * math co-processor latest. - */ -/* - * switch_to() saves the extra registers, that are not saved - * automatically by SAVE_SWITCH_STACK in resume(), ie. d0-d5 and - * a0-a1. Some of these are used by schedule() and its predecessors - * and so we might get see unexpected behaviors when a task returns - * with unexpected register values. - * - * syscall stores these registers itself and none of them are used - * by syscall after the function in the syscall has been called. - * - * Beware that resume now expects *next to be in d1 and the offset of - * tss to be in a1. This saves a few instructions as we no longer have - * to push them onto the stack and read them back right after. - * - * 02/17/96 - Jes Sorensen (jds@kom.auc.dk) - * - * Changed 96/09/19 by Andreas Schwab - * pass prev in a0, next in a1, offset of tss in d1, and whether - * the mm structures are shared in d2 (to avoid atc flushing). - * - * H8/300 Porting 2002/09/04 Yoshinori Sato - */ - -asmlinkage void resume(void); -#define switch_to(prev, next, last) \ -do { \ - void *_last; \ - __asm__ __volatile__( \ - "mov.l %1, er0\n\t" \ - "mov.l %2, er1\n\t" \ - "mov.l %3, er2\n\t" \ - "jsr @_resume\n\t" \ - "mov.l er2,%0\n\t" \ - : "=r" (_last) \ - : "r" (&(prev->thread)), \ - "r" (&(next->thread)), \ - "g" (prev) \ - : "cc", "er0", "er1", "er2", "er3"); \ - (last) = _last; \ -} while (0) - -#endif /* _H8300_SWITCH_TO_H */ diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h deleted file mode 100644 index 01666b8bb263..000000000000 --- a/arch/h8300/include/asm/syscall.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_H8300_SYSCALLS_32_H -#define __ASM_H8300_SYSCALLS_32_H - -#ifdef __KERNEL__ - -#include <linux/compiler.h> -#include <linux/linkage.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <uapi/linux/audit.h> - -static inline int -syscall_get_nr(struct task_struct *task, struct pt_regs *regs) -{ - return regs->orig_er0; -} - -static inline void -syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned long *args) -{ - *args++ = regs->er1; - *args++ = regs->er2; - *args++ = regs->er3; - *args++ = regs->er4; - *args++ = regs->er5; - *args = regs->er6; -} - -static inline int -syscall_get_arch(struct task_struct *task) -{ - return AUDIT_ARCH_H8300; -} - - -/* Misc syscall related bits */ -asmlinkage long do_syscall_trace_enter(struct pt_regs *regs); -asmlinkage void do_syscall_trace_leave(struct pt_regs *regs); - -#endif /* __KERNEL__ */ -#endif /* __ASM_H8300_SYSCALLS_32_H */ diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h deleted file mode 100644 index ff2d873749a4..000000000000 --- a/arch/h8300/include/asm/thread_info.h +++ /dev/null @@ -1,102 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* thread_info.h: h8300 low-level thread information - * adapted from the i386 and PPC versions by Yoshinori Sato <ysato@users.sourceforge.jp> - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#include <asm/page.h> - -#ifdef __KERNEL__ - -/* - * Size of kernel stack for each process. This must be a power of 2... - */ -#define THREAD_SIZE_ORDER 1 -#define THREAD_SIZE 8192 /* 2 pages */ - -#ifndef __ASSEMBLY__ - -/* - * low level task data. - * If you change this, change the TI_* offsets below to match. - */ -struct thread_info { - struct task_struct *task; /* main task structure */ - unsigned long flags; /* low level flags */ - int cpu; /* cpu we're on */ - int preempt_count; /* 0 => preemptable, <0 => BUG */ -}; - -/* - * macros/functions for gaining access to the thread information structure - */ -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = INIT_PREEMPT_COUNT, \ -} - -/* how to get the thread information struct from C */ -static inline struct thread_info *current_thread_info(void) -{ - struct thread_info *ti; - - __asm__("mov.l sp, %0\n\t" - "and.w %1, %T0" - : "=&r"(ti) - : "i" (~(THREAD_SIZE-1) & 0xffff)); - return ti; -} - -#endif /* __ASSEMBLY__ */ - -/* - * thread information flag bit numbers - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_SINGLESTEP 3 /* singlestepping active */ -#define TIF_MEMDIE 4 /* is terminating due to OOM killer */ -#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */ -#define TIF_NOTIFY_RESUME 6 /* callback before returning to user */ -#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ -#define TIF_SYSCALL_TRACEPOINT 8 /* for ftrace syscall instrumentation */ -#define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_NOTIFY_SIGNAL 10 /* signal notifications exist */ - -/* as above, but as bit values */ -#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) -#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) -#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) -#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) -#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) -#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) -#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) - -/* work to do in syscall trace */ -#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ - _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT) - -/* work to do on any return to u-space */ -#define _TIF_ALLWORK_MASK (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING | \ - _TIF_NEED_RESCHED | _TIF_SYSCALL_AUDIT | \ - _TIF_SINGLESTEP | _TIF_NOTIFY_RESUME | \ - _TIF_SYSCALL_TRACEPOINT | _TIF_NOTIFY_SIGNAL) - -/* work to do on interrupt/exception return */ -#define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \ - _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/h8300/include/asm/tlb.h b/arch/h8300/include/asm/tlb.h deleted file mode 100644 index d8201ca31206..000000000000 --- a/arch/h8300/include/asm/tlb.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __H8300_TLB_H__ -#define __H8300_TLB_H__ - -#include <asm-generic/tlb.h> - -#endif diff --git a/arch/h8300/include/asm/traps.h b/arch/h8300/include/asm/traps.h deleted file mode 100644 index 1c5a30ec2df8..000000000000 --- a/arch/h8300/include/asm/traps.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * linux/include/asm-h8300/traps.h - * - * Copyright (C) 2003 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. - */ - -#ifndef _H8300_TRAPS_H -#define _H8300_TRAPS_H - -extern void _system_call(void); -extern void _interrupt_entry(void); -extern void _trace_break(void); -extern void _nmi(void); -extern void _interrupt_entry(void); - -extern unsigned long *_interrupt_redirect_table; - -#define JMP_OP 0x5a000000 -#define JSR_OP 0x5e000000 -#define VECTOR(address) ((JMP_OP)|((unsigned long)address)) -#define REDIRECT(address) ((JSR_OP)|((unsigned long)address)) -#define CPU_VECTOR ((unsigned long *)0x000000) -#define ADDR_MASK (0xffffff) - -#define TRACE_VEC 5 - -#define TRAP0_VEC 8 -#define TRAP1_VEC 9 -#define TRAP2_VEC 10 -#define TRAP3_VEC 11 - -extern char _start[], _etext[]; -#define check_kernel_text(addr) \ - ((addr >= (unsigned long)(_start)) && \ - (addr < (unsigned long)(_etext)) && !(addr & 1)) - -#endif /* _H8300_TRAPS_H */ diff --git a/arch/h8300/include/asm/user.h b/arch/h8300/include/asm/user.h deleted file mode 100644 index 161653d84b34..000000000000 --- a/arch/h8300/include/asm/user.h +++ /dev/null @@ -1,71 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_USER_H -#define _H8300_USER_H - -#include <asm/page.h> - -/* Core file format: The core file is written in such a way that gdb - can understand it and provide useful information to the user (under - linux we use the 'trad-core' bfd). There are quite a number of - obstacles to being able to view the contents of the floating point - registers, and until these are solved you will not be able to view the - contents of them. Actually, you can read in the core file and look at - the contents of the user struct to find out what the floating point - registers contain. - The actual file contents are as follows: - UPAGE: 1 page consisting of a user struct that tells gdb what is present - in the file. Directly after this is a copy of the task_struct, which - is currently not used by gdb, but it may come in useful at some point. - All of the registers are stored as part of the upage. The upage should - always be only one page. - DATA: The data area is stored. We use current->end_text to - current->brk to pick up all of the user variables, plus any memory - that may have been malloced. No attempt is made to determine if a page - is demand-zero or if a page is totally unused, we just cover the entire - range. All of the addresses are rounded in such a way that an integral - number of pages is written. - STACK: We need the stack information in order to get a meaningful - backtrace. We need to write the data from (esp) to - current->start_stack, so we round each of these off in order to be able - to write an integer number of pages. - The minimum core file size is 3 pages, or 12288 bytes. -*/ - -/* This is the old layout of "struct pt_regs" as of Linux 1.x, and - is still the layout used by user (the new pt_regs doesn't have - all registers). */ -struct user_regs_struct { - long er1, er2, er3, er4, er5, er6; - long er0; - long usp; - long orig_er0; - long ccr; - long pc; -}; - -/* When the kernel dumps core, it starts by dumping the user struct - - this will be used by gdb to figure out where the data and stack segments - are within the file, and what virtual addresses to use. */ -struct user { -/* We start with the registers, to mimic the way that "memory" is returned - from the ptrace(3,...) function. */ - struct user_regs_struct regs; /* Where the registers are actually stored */ -/* ptrace does not yet supply these. Someday.... */ -/* The rest of this junk is to help gdb figure out what goes where */ - unsigned long int u_tsize; /* Text segment size (pages). */ - unsigned long int u_dsize; /* Data segment size (pages). */ - unsigned long int u_ssize; /* Stack segment size (pages). */ - unsigned long start_code; /* Starting virtual address of text. */ - unsigned long start_stack; /* Starting virtual address of stack area. - This is actually the bottom of the stack, - the top of the stack is always found in the - esp register. */ - long int signal; /* Signal that caused the core dump. */ - int reserved; /* No longer used */ - unsigned long u_ar0; /* Used by gdb to help find the values for */ - /* the registers. */ - unsigned long magic; /* To uniquely identify a core file */ - char u_comm[32]; /* User command that was responsible */ -}; - -#endif diff --git a/arch/h8300/include/asm/vmalloc.h b/arch/h8300/include/asm/vmalloc.h deleted file mode 100644 index 08a55c1dfa23..000000000000 --- a/arch/h8300/include/asm/vmalloc.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef _ASM_H8300_VMALLOC_H -#define _ASM_H8300_VMALLOC_H - -#endif /* _ASM_H8300_VMALLOC_H */ diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild deleted file mode 100644 index e78470141932..000000000000 --- a/arch/h8300/include/uapi/asm/Kbuild +++ /dev/null @@ -1,2 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -generic-y += ucontext.h diff --git a/arch/h8300/include/uapi/asm/byteorder.h b/arch/h8300/include/uapi/asm/byteorder.h deleted file mode 100644 index 1fe2f9344458..000000000000 --- a/arch/h8300/include/uapi/asm/byteorder.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _H8300_BYTEORDER_H -#define _H8300_BYTEORDER_H - -#include <linux/byteorder/big_endian.h> - -#endif /* _H8300_BYTEORDER_H */ diff --git a/arch/h8300/include/uapi/asm/posix_types.h b/arch/h8300/include/uapi/asm/posix_types.h deleted file mode 100644 index 3efc9dd59476..000000000000 --- a/arch/h8300/include/uapi/asm/posix_types.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ -#ifndef _UAPI_ASM_POSIX_TYPES_H -#define _UAPI_ASM_POSIX_TYPES_H - -/* h8300-unknown-linux required long */ -#define __kernel_size_t __kernel_size_t -typedef unsigned long __kernel_size_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; - -#include <asm-generic/posix_types.h> - -#endif /* _UAPI_ASM_POSIX_TYPES_H */ diff --git a/arch/h8300/include/uapi/asm/ptrace.h b/arch/h8300/include/uapi/asm/ptrace.h deleted file mode 100644 index 78167f517ca4..000000000000 --- a/arch/h8300/include/uapi/asm/ptrace.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI_H8300_PTRACE_H -#define _UAPI_H8300_PTRACE_H - -#ifndef __ASSEMBLY__ - -#define PT_ER1 0 -#define PT_ER2 1 -#define PT_ER3 2 -#define PT_ER4 3 -#define PT_ER5 4 -#define PT_ER6 5 -#define PT_ER0 6 -#define PT_USP 7 -#define PT_ORIG_ER0 8 -#define PT_CCR 9 -#define PT_PC 10 -#define PT_EXR 11 - -/* this struct defines the way the registers are stored on the - stack during a system call. */ - -struct pt_regs { - long retpc; - long er4; - long er5; - long er6; - long er3; - long er2; - long er1; - long orig_er0; - long sp; - unsigned short ccr; - long er0; - long vector; -#if defined(__H8300S__) - unsigned short exr; -#endif - unsigned long pc; -} __attribute__((aligned(2), packed)); - -#endif /* __ASSEMBLY__ */ -#endif /* _UAPI_H8300_PTRACE_H */ diff --git a/arch/h8300/include/uapi/asm/sigcontext.h b/arch/h8300/include/uapi/asm/sigcontext.h deleted file mode 100644 index f77273c857d7..000000000000 --- a/arch/h8300/include/uapi/asm/sigcontext.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_H8300_SIGCONTEXT_H -#define _ASM_H8300_SIGCONTEXT_H - -struct sigcontext { - unsigned long sc_mask; /* old sigmask */ - unsigned long sc_usp; /* old user stack pointer */ - unsigned long sc_er0; - unsigned long sc_er1; - unsigned long sc_er2; - unsigned long sc_er3; - unsigned long sc_er4; - unsigned long sc_er5; - unsigned long sc_er6; - unsigned short sc_ccr; - unsigned long sc_pc; -}; - -#endif diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h deleted file mode 100644 index 1165481f80f6..000000000000 --- a/arch/h8300/include/uapi/asm/signal.h +++ /dev/null @@ -1,92 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI_H8300_SIGNAL_H -#define _UAPI_H8300_SIGNAL_H - -#include <linux/types.h> - -/* Avoid too many header ordering problems. */ -struct siginfo; - -#ifndef __KERNEL__ -/* Here we must cater to libcs that poke about in kernel headers. */ - -#define NSIG 32 -typedef unsigned long sigset_t; - -#endif /* __KERNEL__ */ - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGBUS 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGUSR1 10 -#define SIGSEGV 11 -#define SIGUSR2 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGSTKFLT 16 -#define SIGCHLD 17 -#define SIGCONT 18 -#define SIGSTOP 19 -#define SIGTSTP 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGURG 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGIO 29 -#define SIGPOLL SIGIO -/* -#define SIGLOST 29 -*/ -#define SIGPWR 30 -#define SIGSYS 31 -#define SIGUNUSED 31 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 32 -#define SIGRTMAX _NSIG - -#define SA_RESTORER 0x04000000 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#include <asm-generic/signal-defs.h> - -#ifndef __KERNEL__ -/* Here we must cater to libcs that poke about in kernel headers. */ - -struct sigaction { - union { - __sighandler_t _sa_handler; - void (*_sa_sigaction)(int, struct siginfo *, void *); - } _u; - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -#define sa_handler _u._sa_handler -#define sa_sigaction _u._sa_sigaction - -#endif /* __KERNEL__ */ - -typedef struct sigaltstack { - void *ss_sp; - int ss_flags; - __kernel_size_t ss_size; -} stack_t; - - -#endif /* _UAPI_H8300_SIGNAL_H */ diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h deleted file mode 100644 index eb7bc0012af5..000000000000 --- a/arch/h8300/include/uapi/asm/unistd.h +++ /dev/null @@ -1,8 +0,0 @@ -#define __ARCH_NOMMU - -#define __ARCH_WANT_RENAMEAT -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SET_GET_RLIMIT -#define __ARCH_WANT_TIME32_SYSCALLS - -#include <asm-generic/unistd.h> 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 42db87c17917..000000000000 --- a/arch/h8300/kernel/entry.S +++ /dev/null @@ -1,433 +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/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 489462f0ee57..000000000000 --- a/arch/h8300/kernel/head_ram.S +++ /dev/null @@ -1,60 +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/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 a9898b27b756..000000000000 --- a/arch/h8300/kernel/ptrace.c +++ /dev/null @@ -1,199 +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/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 *)®s, r = 0; r < sizeof(regs) / sizeof(long); r++) - *reg++ = h8300_get_reg(target, r); - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - ®s, 0, sizeof(regs)); - if (ret) - return ret; - - /* write back to pt_regs */ - for (reg = (long *)®s, 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) && - ptrace_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)) - ptrace_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 0716fc8a8ce2..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/resume_user_mode.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) - resume_user_mode_work(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 -} diff --git a/arch/h8300/lib/Makefile b/arch/h8300/lib/Makefile deleted file mode 100644 index 5911c1fa856d..000000000000 --- a/arch/h8300/lib/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for H8/300-specific library files.. -# - -lib-y = memcpy.o memset.o abs.o \ - mulsi3.o udivsi3.o muldi3.o moddivsi3.o \ - ashldi3.o lshrdi3.o ashrdi3.o ucmpdi2.o \ - delay.o diff --git a/arch/h8300/lib/abs.S b/arch/h8300/lib/abs.S deleted file mode 100644 index 6e1a4ed3af53..000000000000 --- a/arch/h8300/lib/abs.S +++ /dev/null @@ -1,21 +0,0 @@ -;;; SPDX-License-Identifier: GPL-2.0 -;;; abs.S - -#include <asm/linkage.h> - -#if defined(CONFIG_CPU_H8300H) - .h8300h -#endif -#if defined(CONFIG_CPU_H8S) - .h8300s -#endif - .text -.global _abs - -;;; int abs(int n) -_abs: - mov.l er0,er0 - bpl 1f - neg.l er0 -1: - rts diff --git a/arch/h8300/lib/ashldi3.c b/arch/h8300/lib/ashldi3.c deleted file mode 100644 index 430720c0c5d8..000000000000 --- a/arch/h8300/lib/ashldi3.c +++ /dev/null @@ -1,25 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "libgcc.h" - -DWtype -__ashldi3(DWtype u, word_type b) -{ - const DWunion uu = {.ll = u}; - const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - DWunion w; - - if (b == 0) - return u; - - if (bm <= 0) { - w.s.low = 0; - w.s.high = (UWtype) uu.s.low << -bm; - } else { - const UWtype carries = (UWtype) uu.s.low >> bm; - - w.s.low = (UWtype) uu.s.low << b; - w.s.high = ((UWtype) uu.s.high << b) | carries; - } - - return w.ll; -} diff --git a/arch/h8300/lib/ashrdi3.c b/arch/h8300/lib/ashrdi3.c deleted file mode 100644 index 2c6cd424eb3e..000000000000 --- a/arch/h8300/lib/ashrdi3.c +++ /dev/null @@ -1,25 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "libgcc.h" - -DWtype __ashrdi3(DWtype u, word_type b) -{ - const DWunion uu = {.ll = u}; - const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - DWunion w; - - if (b == 0) - return u; - - if (bm <= 0) { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (Wtype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } else { - const UWtype carries = (UWtype) uu.s.high << bm; - - w.s.high = uu.s.high >> b; - w.s.low = ((UWtype) uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/h8300/lib/delay.c b/arch/h8300/lib/delay.c deleted file mode 100644 index f4277529a9b9..000000000000 --- a/arch/h8300/lib/delay.c +++ /dev/null @@ -1,41 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * delay loops - * - * Copyright (C) 2015 Yoshinori Sato - */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <asm/param.h> -#include <asm/processor.h> -#include <asm/timex.h> - -void __delay(unsigned long cycles) -{ - __asm__ volatile ("1: dec.l #1,%0\n\t" - "bne 1b":"=r"(cycles):"0"(cycles)); -} -EXPORT_SYMBOL(__delay); - -void __const_udelay(unsigned long xloops) -{ - u64 loops; - - loops = (u64)xloops * loops_per_jiffy * HZ; - - __delay(loops >> 32); -} -EXPORT_SYMBOL(__const_udelay); - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x10C7UL); /* 2**32 / 1000000 (rounded up) */ -} -EXPORT_SYMBOL(__udelay); - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x5UL); /* 2**32 / 1000000000 (rounded up) */ -} -EXPORT_SYMBOL(__ndelay); diff --git a/arch/h8300/lib/libgcc.h b/arch/h8300/lib/libgcc.h deleted file mode 100644 index b8bcf7035ff5..000000000000 --- a/arch/h8300/lib/libgcc.h +++ /dev/null @@ -1,78 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __H8300_LIBGCC_H__ -#define __H8300_LIBGCC_H__ - -#ifdef __ASSEMBLY__ -#define A0 r0 -#define A0L r0l -#define A0H r0h - -#define A1 r1 -#define A1L r1l -#define A1H r1h - -#define A2 r2 -#define A2L r2l -#define A2H r2h - -#define A3 r3 -#define A3L r3l -#define A3H r3h - -#define S0 r4 -#define S0L r4l -#define S0H r4h - -#define S1 r5 -#define S1L r5l -#define S1H r5h - -#define S2 r6 -#define S2L r6l -#define S2H r6h - -#define PUSHP push.l -#define POPP pop.l - -#define A0P er0 -#define A1P er1 -#define A2P er2 -#define A3P er3 -#define S0P er4 -#define S1P er5 -#define S2P er6 - -#define A0E e0 -#define A1E e1 -#define A2E e2 -#define A3E e3 -#else -#define Wtype SItype -#define UWtype USItype -#define HWtype SItype -#define UHWtype USItype -#define DWtype DItype -#define UDWtype UDItype -#define UWtype USItype -#define Wtype SItype -#define UWtype USItype -#define W_TYPE_SIZE (4 * BITS_PER_UNIT) -#define BITS_PER_UNIT (8) - -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef unsigned int UDItype __attribute__ ((mode (DI))); -struct DWstruct { - Wtype high, low; -}; -typedef union { - struct DWstruct s; - DWtype ll; -} DWunion; - -typedef int word_type __attribute__ ((mode (__word__))); - -#endif - -#endif diff --git a/arch/h8300/lib/lshrdi3.c b/arch/h8300/lib/lshrdi3.c deleted file mode 100644 index 8dbc861ca589..000000000000 --- a/arch/h8300/lib/lshrdi3.c +++ /dev/null @@ -1,24 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "libgcc.h" - -DWtype __lshrdi3(DWtype u, word_type b) -{ - const DWunion uu = {.ll = u}; - const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - DWunion w; - - if (b == 0) - return u; - - if (bm <= 0) { - w.s.high = 0; - w.s.low = (UWtype) uu.s.high >> -bm; - } else { - const UWtype carries = (UWtype) uu.s.high << bm; - - w.s.high = (UWtype) uu.s.high >> b; - w.s.low = ((UWtype) uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/h8300/lib/memcpy.S b/arch/h8300/lib/memcpy.S deleted file mode 100644 index f1cd67d5e3ea..000000000000 --- a/arch/h8300/lib/memcpy.S +++ /dev/null @@ -1,86 +0,0 @@ -;;; SPDX-License-Identifier: GPL-2.0 -;;; memcpy.S - -#include <asm/linkage.h> - -#if defined(CONFIG_CPU_H8300H) - .h8300h -#endif -#if defined(CONFIG_CPU_H8S) - .h8300s -#endif - .text -.global memcpy - -;;; void *memcpy(void *to, void *from, size_t n) -memcpy: - mov.l er2,er2 - bne 1f - rts -1: - ;; address check - bld #0,r0l - bxor #0,r1l - bcs 4f - mov.l er4,@-sp - mov.l er0,@-sp - btst #0,r0l - beq 1f - ;; (aligned even) odd address - mov.b @er1,r3l - mov.b r3l,@er0 - adds #1,er1 - adds #1,er0 - dec.l #1,er2 - beq 3f -1: - ;; n < sizeof(unsigned long) check - sub.l er4,er4 - adds #4,er4 ; loop count check value - cmp.l er4,er2 - blo 2f - ;; unsigned long copy -1: - mov.l @er1,er3 - mov.l er3,@er0 - adds #4,er0 - adds #4,er1 - subs #4,er2 - cmp.l er4,er2 - bcc 1b - ;; rest -2: - mov.l er2,er2 - beq 3f -1: - mov.b @er1,r3l - mov.b r3l,@er0 - adds #1,er1 - adds #1,er0 - dec.l #1,er2 - bne 1b -3: - mov.l @sp+,er0 - mov.l @sp+,er4 - rts - - ;; odd <- even / even <- odd -4: - mov.l er4,er3 - mov.l er2,er4 - mov.l er5,er2 - mov.l er1,er5 - mov.l er6,er1 - mov.l er0,er6 -1: - eepmov.w - mov.w r4,r4 - bne 1b - dec.w #1,e4 - bpl 1b - mov.l er1,er6 - mov.l er2,er5 - mov.l er3,er4 - rts - - .end diff --git a/arch/h8300/lib/memset.S b/arch/h8300/lib/memset.S deleted file mode 100644 index 2d1abc37fd08..000000000000 --- a/arch/h8300/lib/memset.S +++ /dev/null @@ -1,70 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* memset.S */ - -#include <asm/linkage.h> - -#if defined(CONFIG_CPU_H8300H) - .h8300h -#endif -#if defined(CONFIG_CPU_H8S) - .h8300s -#endif - .text - -.global memset -.global clear_user - -;;void *memset(*ptr, int c, size_t count) -;; ptr = er0 -;; c = er1(r1l) -;; count = er2 -memset: - btst #0,r0l - beq 2f - - ;; odd address -1: - mov.b r1l,@er0 - adds #1,er0 - dec.l #1,er2 - beq 6f - - ;; even address -2: - mov.l er2,er3 - cmp.l #4,er2 - blo 4f - ;; count>=4 -> count/4 -#if defined(CONFIG_CPU_H8300H) - shlr.l er2 - shlr.l er2 -#endif -#if defined(CONFIG_CPU_H8S) - shlr.l #2,er2 -#endif - ;; byte -> long - mov.b r1l,r1h - mov.w r1,e1 -3: - mov.l er1,@er0 - adds #4,er0 - dec.l #1,er2 - bne 3b -4: - ;; count % 4 - and.b #3,r3l - beq 6f -5: - mov.b r1l,@er0 - adds #1,er0 - dec.b r3l - bne 5b -6: - rts - -clear_user: - mov.l er1, er2 - sub.l er1, er1 - bra memset - - .end diff --git a/arch/h8300/lib/moddivsi3.S b/arch/h8300/lib/moddivsi3.S deleted file mode 100644 index 9e33ab0456c7..000000000000 --- a/arch/h8300/lib/moddivsi3.S +++ /dev/null @@ -1,73 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include "libgcc.h" - -; numerator in A0/A1 -; denominator in A2/A3 - .global __modsi3 -__modsi3: - PUSHP S2P - bsr modnorm - bsr __divsi3 - mov.l er3,er0 - bra exitdiv - - .global __umodsi3 -__umodsi3: - bsr __udivsi3:16 - mov.l er3,er0 - rts - - .global __divsi3 -__divsi3: - PUSHP S2P - bsr divnorm - bsr __udivsi3:16 - - ; examine what the sign should be -exitdiv: - btst #3,S2L - beq reti - - ; should be -ve - neg.l A0P - -reti: - POPP S2P - rts - -divnorm: - mov.l A0P,A0P ; is the numerator -ve - stc ccr,S2L ; keep the sign in bit 3 of S2L - bge postive - - neg.l A0P ; negate arg - -postive: - mov.l A1P,A1P ; is the denominator -ve - bge postive2 - - neg.l A1P ; negate arg - xor.b #0x08,S2L ; toggle the result sign - -postive2: - rts - -;; Basically the same, except that the sign of the divisor determines -;; the sign. -modnorm: - mov.l A0P,A0P ; is the numerator -ve - stc ccr,S2L ; keep the sign in bit 3 of S2L - bge mpostive - - neg.l A0P ; negate arg - -mpostive: - mov.l A1P,A1P ; is the denominator -ve - bge mpostive2 - - neg.l A1P ; negate arg - -mpostive2: - rts - - .end diff --git a/arch/h8300/lib/modsi3.S b/arch/h8300/lib/modsi3.S deleted file mode 100644 index bdc8a002921d..000000000000 --- a/arch/h8300/lib/modsi3.S +++ /dev/null @@ -1,73 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include "libgcc.h" - -; numerator in A0/A1 -; denominator in A2/A3 - .global __modsi3 -__modsi3: - PUSHP S2P - bsr modnorm - bsr __divsi3 - mov.l er3,er0 - bra exitdiv - - .global __umodsi3 -__umodsi3: - bsr __udivsi3 - mov.l er3,er0 - rts - - .global __divsi3 -__divsi3: - PUSHP S2P - jsr divnorm - bsr __udivsi3 - - ; examine what the sign should be -exitdiv: - btst #3,S2L - beq reti - - ; should be -ve - neg.l A0P - -reti: - POPP S2P - rts - -divnorm: - mov.l A0P,A0P ; is the numerator -ve - stc ccr,S2L ; keep the sign in bit 3 of S2L - bge postive - - neg.l A0P ; negate arg - -postive: - mov.l A1P,A1P ; is the denominator -ve - bge postive2 - - neg.l A1P ; negate arg - xor.b #0x08,S2L ; toggle the result sign - -postive2: - rts - -;; Basically the same, except that the sign of the divisor determines -;; the sign. -modnorm: - mov.l A0P,A0P ; is the numerator -ve - stc ccr,S2L ; keep the sign in bit 3 of S2L - bge mpostive - - neg.l A0P ; negate arg - -mpostive: - mov.l A1P,A1P ; is the denominator -ve - bge mpostive2 - - neg.l A1P ; negate arg - -mpostive2: - rts - - .end diff --git a/arch/h8300/lib/muldi3.c b/arch/h8300/lib/muldi3.c deleted file mode 100644 index 9cb11b134e54..000000000000 --- a/arch/h8300/lib/muldi3.c +++ /dev/null @@ -1,45 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "libgcc.h" - -#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) -#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) -#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) - -#define umul_ppmm(w1, w0, u, v) \ - do { \ - UWtype __x0, __x1, __x2, __x3; \ - UHWtype __ul, __vl, __uh, __vh; \ - __ul = __ll_lowpart(u); \ - __uh = __ll_highpart(u); \ - __vl = __ll_lowpart(v); \ - __vh = __ll_highpart(v); \ - __x0 = (UWtype) __ul * __vl; \ - __x1 = (UWtype) __ul * __vh; \ - __x2 = (UWtype) __uh * __vl; \ - __x3 = (UWtype) __uh * __vh; \ - __x1 += __ll_highpart(__x0); \ - __x1 += __x2; \ - if (__x1 < __x2) \ - __x3 += __ll_B; \ - (w1) = __x3 + __ll_highpart(__x1); \ - (w0) = __ll_lowpart(__x1) * __ll_B + __ll_lowpart(__x0); \ - } while (0) - -#define __umulsidi3(u, v) ( \ - { \ - DWunion __w; \ - umul_ppmm(__w.s.high, __w.s.low, u, v); \ - __w.ll; } \ - ) - -DWtype __muldi3(DWtype u, DWtype v) -{ - const DWunion uu = {.ll = u}; - const DWunion vv = {.ll = v}; - DWunion w = {.ll = __umulsidi3(uu.s.low, vv.s.low)}; - - w.s.high += ((UWtype) uu.s.low * (UWtype) vv.s.high - + (UWtype) uu.s.high * (UWtype) vv.s.low); - - return w.ll; -} diff --git a/arch/h8300/lib/mulsi3.S b/arch/h8300/lib/mulsi3.S deleted file mode 100644 index 5a062fd298d1..000000000000 --- a/arch/h8300/lib/mulsi3.S +++ /dev/null @@ -1,39 +0,0 @@ -; SPDX-License-Identifier: GPL-2.0 -; -; mulsi3 for H8/300H - based on Renesas SH implementation -; -; by Toshiyasu Morita -; -; Old code: -; -; 16b * 16b = 372 states (worst case) -; 32b * 32b = 724 states (worst case) -; -; New code: -; -; 16b * 16b = 48 states -; 16b * 32b = 72 states -; 32b * 32b = 92 states -; - - .global __mulsi3 -__mulsi3: - mov.w r1,r2 ; ( 2 states) b * d - mulxu r0,er2 ; (22 states) - - mov.w e0,r3 ; ( 2 states) a * d - beq L_skip1 ; ( 4 states) - mulxu r1,er3 ; (22 states) - add.w r3,e2 ; ( 2 states) - -L_skip1: - mov.w e1,r3 ; ( 2 states) c * b - beq L_skip2 ; ( 4 states) - mulxu r0,er3 ; (22 states) - add.w r3,e2 ; ( 2 states) - -L_skip2: - mov.l er2,er0 ; ( 2 states) - rts ; (10 states) - - .end diff --git a/arch/h8300/lib/ucmpdi2.c b/arch/h8300/lib/ucmpdi2.c deleted file mode 100644 index 9f646885f3d7..000000000000 --- a/arch/h8300/lib/ucmpdi2.c +++ /dev/null @@ -1,18 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "libgcc.h" - -word_type __ucmpdi2(DWtype a, DWtype b) -{ - const DWunion au = {.ll = a}; - const DWunion bu = {.ll = b}; - - if ((UWtype) au.s.high < (UWtype) bu.s.high) - return 0; - else if ((UWtype) au.s.high > (UWtype) bu.s.high) - return 2; - if ((UWtype) au.s.low < (UWtype) bu.s.low) - return 0; - else if ((UWtype) au.s.low > (UWtype) bu.s.low) - return 2; - return 1; -} diff --git a/arch/h8300/lib/udivsi3.S b/arch/h8300/lib/udivsi3.S deleted file mode 100644 index b810aba8e100..000000000000 --- a/arch/h8300/lib/udivsi3.S +++ /dev/null @@ -1,77 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include "libgcc.h" - - ;; This function also computes the remainder and stores it in er3. - .global __udivsi3 -__udivsi3: - mov.w A1E,A1E ; denominator top word 0? - bne DenHighNonZero - - ; do it the easy way, see page 107 in manual - mov.w A0E,A2 - extu.l A2P - divxu.w A1,A2P - mov.w A2E,A0E - divxu.w A1,A0P - mov.w A0E,A3 - mov.w A2,A0E - extu.l A3P - rts - - ; er0 = er0 / er1 - ; er3 = er0 % er1 - ; trashes er1 er2 - ; expects er1 >= 2^16 -DenHighNonZero: - mov.l er0,er3 - mov.l er1,er2 -#ifdef CONFIG_CPU_H8300H -divmod_L21: - shlr.l er0 - shlr.l er2 ; make divisor < 2^16 - mov.w e2,e2 - bne divmod_L21 -#else - shlr.l #2,er2 ; make divisor < 2^16 - mov.w e2,e2 - beq divmod_L22A -divmod_L21: - shlr.l #2,er0 -divmod_L22: - shlr.l #2,er2 ; make divisor < 2^16 - mov.w e2,e2 - bne divmod_L21 -divmod_L22A: - rotxl.w r2 - bcs divmod_L23 - shlr.l er0 - bra divmod_L24 -divmod_L23: - rotxr.w r2 - shlr.l #2,er0 -divmod_L24: -#endif - ;; At this point, - ;; er0 contains shifted dividend - ;; er1 contains divisor - ;; er2 contains shifted divisor - ;; er3 contains dividend, later remainder - divxu.w r2,er0 ; r0 now contains the approximate quotient (AQ) - extu.l er0 - beq divmod_L25 - subs #1,er0 ; er0 = AQ - 1 - mov.w e1,r2 - mulxu.w r0,er2 ; er2 = upper (AQ - 1) * divisor - sub.w r2,e3 ; dividend - 65536 * er2 - mov.w r1,r2 - mulxu.w r0,er2 ; compute er3 = remainder (tentative) - sub.l er2,er3 ; er3 = dividend - (AQ - 1) * divisor -divmod_L25: - cmp.l er1,er3 ; is divisor < remainder? - blo divmod_L26 - adds #1,er0 - sub.l er1,er3 ; correct the remainder -divmod_L26: - rts - - .end diff --git a/arch/h8300/mm/Makefile b/arch/h8300/mm/Makefile deleted file mode 100644 index e85b5c91f5bc..000000000000 --- a/arch/h8300/mm/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for the linux h8300-specific parts of the memory manager. -# - -obj-y := init.o fault.o memory.o diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c deleted file mode 100644 index b465441f490d..000000000000 --- a/arch/h8300/mm/fault.c +++ /dev/null @@ -1,57 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/mm/fault.c - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68knommu/mm/fault.c - * linux/arch/m68k/mm/fault.c - * - * Copyright (C) 1995 Hamish Macdonald - */ - -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/ptrace.h> - - -void die(const char *str, struct pt_regs *fp, unsigned long err); - -/* - * This routine handles page faults. It determines the problem, and - * then passes it off to one of the appropriate routines. - * - * error_code: - * bit 0 == 0 means no page found, 1 means protection fault - * bit 1 == 0 means read, 1 means write - * - * If this routine detects a bad access, it returns 1, otherwise it - * returns 0. - */ -asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code) -{ -#ifdef DEBUG - pr_debug("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n", - regs->sr, regs->pc, address, error_code); -#endif - -/* - * Oops. The kernel tried to access some bad page. We'll have to - * terminate things with extreme prejudice. - */ - if ((unsigned long) address < PAGE_SIZE) - pr_alert("Unable to handle kernel NULL pointer dereference"); - else - pr_alert("Unable to handle kernel access"); - printk(" at virtual address %08lx\n", address); - if (!user_mode(regs)) - die("Oops", regs, error_code); - make_task_dead(SIGKILL); - - return 1; -} diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c deleted file mode 100644 index 9fa13312720a..000000000000 --- a/arch/h8300/mm/init.c +++ /dev/null @@ -1,95 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/mm/init.c - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68knommu/mm/init.c - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) - * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/init.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/memblock.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/page.h> -#include <asm/sections.h> - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -unsigned long empty_zero_page; - -/* - * paging_init() continues the virtual memory environment setup which - * was begun by the code in arch/head.S. - * The parameters are pointers to where to stick the starting and ending - * addresses of available kernel virtual memory. - */ -void __init paging_init(void) -{ - /* - * Make sure start_mem is page aligned, otherwise bootmem and - * page_alloc get different views og the world. - */ - unsigned long start_mem = PAGE_ALIGN(memory_start); - unsigned long end_mem = memory_end & PAGE_MASK; - - pr_debug("start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); - - /* - * Initialize the bad page table and bad page to point - * to a couple of allocated pages. - */ - empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE); - if (!empty_zero_page) - panic("%s: Failed to allocate %lu bytes align=0x%lx\n", - __func__, PAGE_SIZE, PAGE_SIZE); - - pr_debug("before free_area_init\n"); - - pr_debug("free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); - - { - unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; - - max_zone_pfn[ZONE_NORMAL] = end_mem >> PAGE_SHIFT; - free_area_init(max_zone_pfn); - } -} - -void __init mem_init(void) -{ - pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end); - - high_memory = (void *) (memory_end & PAGE_MASK); - max_mapnr = MAP_NR(high_memory); - - /* this will put all low memory onto the freelists */ - memblock_free_all(); -} diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c deleted file mode 100644 index c950571064d2..000000000000 --- a/arch/h8300/mm/memory.c +++ /dev/null @@ -1,52 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/mm/memory.c - * - * Copyright (C) 2002 Yoshinori Sato <ysato@users.sourceforge.jp>, - * - * Based on: - * - * linux/arch/m68knommu/mm/memory.c - * - * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * - * Based on: - * - * linux/arch/m68k/mm/memory.c - * - * Copyright (C) 1995 Hamish Macdonald - */ - -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> - -#include <asm/setup.h> -#include <asm/page.h> -#include <asm/traps.h> -#include <asm/io.h> - -void cache_clear(unsigned long paddr, int len) -{ -} - - -void cache_push(unsigned long paddr, int len) -{ -} - -void cache_push_v(unsigned long vaddr, int len) -{ -} - -/* - * Map some physical address range into the kernel address space. - */ - -unsigned long kernel_map(unsigned long paddr, unsigned long size, - int nocacheflag, unsigned long *memavailp) -{ - return paddr; -} diff --git a/arch/mips/include/uapi/asm/stat.h b/arch/mips/include/uapi/asm/stat.h index 3d2a3b71845c..8a8bb78883a4 100644 --- a/arch/mips/include/uapi/asm/stat.h +++ b/arch/mips/include/uapi/asm/stat.h @@ -19,11 +19,11 @@ struct stat { unsigned st_dev; long st_pad1[3]; /* Reserved for network id */ - ino_t st_ino; - mode_t st_mode; + __kernel_ino_t st_ino; + __kernel_mode_t st_mode; __u32 st_nlink; - uid_t st_uid; - gid_t st_gid; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; unsigned st_rdev; long st_pad2[2]; long st_size; @@ -55,11 +55,11 @@ struct stat64 { unsigned long long st_ino; - mode_t st_mode; + __kernel_mode_t st_mode; __u32 st_nlink; - uid_t st_uid; - gid_t st_gid; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; unsigned long st_rdev; unsigned long st_pad1[3]; /* Reserved for st_rdev expansion */ @@ -96,11 +96,11 @@ struct stat { unsigned long st_ino; - mode_t st_mode; + __kernel_mode_t st_mode; __u32 st_nlink; - uid_t st_uid; - gid_t st_gid; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; unsigned int st_rdev; unsigned int st_pad1[3]; /* Reserved for st_rdev expansion */ diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 0d68adf6e02b..99f0e4a4cbbd 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -30,7 +30,6 @@ config OPENRISC select HAVE_DEBUG_STACKOVERFLOW select OR1K_PIC select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1 - select ARCH_USE_QUEUED_SPINLOCKS select ARCH_USE_QUEUED_RWLOCKS select OMPIC if SMP select ARCH_WANT_FRAME_POINTERS diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index ca5987e11053..3386b9c1c073 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -1,9 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 generic-y += extable.h generic-y += kvm_para.h -generic-y += mcs_spinlock.h -generic-y += qspinlock_types.h -generic-y += qspinlock.h +generic-y += spinlock_types.h +generic-y += spinlock.h generic-y += qrwlock_types.h generic-y += qrwlock.h generic-y += user.h diff --git a/arch/openrisc/include/asm/spinlock.h b/arch/openrisc/include/asm/spinlock.h deleted file mode 100644 index 264944a71535..000000000000 --- a/arch/openrisc/include/asm/spinlock.h +++ /dev/null @@ -1,27 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * OpenRISC Linux - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * OpenRISC implementation: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * et al. - */ - -#ifndef __ASM_OPENRISC_SPINLOCK_H -#define __ASM_OPENRISC_SPINLOCK_H - -#include <asm/qspinlock.h> - -#include <asm/qrwlock.h> - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - - -#endif diff --git a/arch/openrisc/include/asm/spinlock_types.h b/arch/openrisc/include/asm/spinlock_types.h deleted file mode 100644 index 7c6fb1208c88..000000000000 --- a/arch/openrisc/include/asm/spinlock_types.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _ASM_OPENRISC_SPINLOCK_TYPES_H -#define _ASM_OPENRISC_SPINLOCK_TYPES_H - -#include <asm/qspinlock_types.h> -#include <asm/qrwlock_types.h> - -#endif /* _ASM_OPENRISC_SPINLOCK_TYPES_H */ diff --git a/arch/powerpc/include/uapi/asm/stat.h b/arch/powerpc/include/uapi/asm/stat.h index 7871055e5e32..a28c9a1201fa 100644 --- a/arch/powerpc/include/uapi/asm/stat.h +++ b/arch/powerpc/include/uapi/asm/stat.h @@ -29,16 +29,16 @@ struct __old_kernel_stat { struct stat { unsigned long st_dev; - ino_t st_ino; + __kernel_ino_t st_ino; #ifdef __powerpc64__ unsigned long st_nlink; - mode_t st_mode; + __kernel_mode_t st_mode; #else - mode_t st_mode; + __kernel_mode_t st_mode; unsigned short st_nlink; #endif - uid_t st_uid; - gid_t st_gid; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; unsigned long st_rdev; long st_size; unsigned long st_blksize; diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 3ac2a81a55eb..52a4b0bdb502 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -39,6 +39,7 @@ config RISCV select ARCH_SUPPORTS_DEBUG_PAGEALLOC if MMU select ARCH_SUPPORTS_HUGETLBFS if MMU select ARCH_USE_MEMTEST + select ARCH_USE_QUEUED_RWLOCKS select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU select ARCH_WANT_FRAME_POINTERS select ARCH_WANT_GENERAL_HUGETLB diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild index 5edf5b8587e7..504f8b7e72d4 100644 --- a/arch/riscv/include/asm/Kbuild +++ b/arch/riscv/include/asm/Kbuild @@ -3,5 +3,9 @@ generic-y += early_ioremap.h generic-y += flat.h generic-y += kvm_para.h generic-y += parport.h +generic-y += spinlock.h +generic-y += spinlock_types.h +generic-y += qrwlock.h +generic-y += qrwlock_types.h generic-y += user.h generic-y += vmlinux.lds.h diff --git a/arch/riscv/include/asm/spinlock.h b/arch/riscv/include/asm/spinlock.h deleted file mode 100644 index f4f7fa1b7ca8..000000000000 --- a/arch/riscv/include/asm/spinlock.h +++ /dev/null @@ -1,135 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2015 Regents of the University of California - * Copyright (C) 2017 SiFive - */ - -#ifndef _ASM_RISCV_SPINLOCK_H -#define _ASM_RISCV_SPINLOCK_H - -#include <linux/kernel.h> -#include <asm/current.h> -#include <asm/fence.h> - -/* - * Simple spin lock operations. These provide no fairness guarantees. - */ - -/* FIXME: Replace this with a ticket lock, like MIPS. */ - -#define arch_spin_is_locked(x) (READ_ONCE((x)->lock) != 0) - -static inline void arch_spin_unlock(arch_spinlock_t *lock) -{ - smp_store_release(&lock->lock, 0); -} - -static inline int arch_spin_trylock(arch_spinlock_t *lock) -{ - int tmp = 1, busy; - - __asm__ __volatile__ ( - " amoswap.w %0, %2, %1\n" - RISCV_ACQUIRE_BARRIER - : "=r" (busy), "+A" (lock->lock) - : "r" (tmp) - : "memory"); - - return !busy; -} - -static inline void arch_spin_lock(arch_spinlock_t *lock) -{ - while (1) { - if (arch_spin_is_locked(lock)) - continue; - - if (arch_spin_trylock(lock)) - break; - } -} - -/***********************************************************/ - -static inline void arch_read_lock(arch_rwlock_t *lock) -{ - int tmp; - - __asm__ __volatile__( - "1: lr.w %1, %0\n" - " bltz %1, 1b\n" - " addi %1, %1, 1\n" - " sc.w %1, %1, %0\n" - " bnez %1, 1b\n" - RISCV_ACQUIRE_BARRIER - : "+A" (lock->lock), "=&r" (tmp) - :: "memory"); -} - -static inline void arch_write_lock(arch_rwlock_t *lock) -{ - int tmp; - - __asm__ __volatile__( - "1: lr.w %1, %0\n" - " bnez %1, 1b\n" - " li %1, -1\n" - " sc.w %1, %1, %0\n" - " bnez %1, 1b\n" - RISCV_ACQUIRE_BARRIER - : "+A" (lock->lock), "=&r" (tmp) - :: "memory"); -} - -static inline int arch_read_trylock(arch_rwlock_t *lock) -{ - int busy; - - __asm__ __volatile__( - "1: lr.w %1, %0\n" - " bltz %1, 1f\n" - " addi %1, %1, 1\n" - " sc.w %1, %1, %0\n" - " bnez %1, 1b\n" - RISCV_ACQUIRE_BARRIER - "1:\n" - : "+A" (lock->lock), "=&r" (busy) - :: "memory"); - - return !busy; -} - -static inline int arch_write_trylock(arch_rwlock_t *lock) -{ - int busy; - - __asm__ __volatile__( - "1: lr.w %1, %0\n" - " bnez %1, 1f\n" - " li %1, -1\n" - " sc.w %1, %1, %0\n" - " bnez %1, 1b\n" - RISCV_ACQUIRE_BARRIER - "1:\n" - : "+A" (lock->lock), "=&r" (busy) - :: "memory"); - - return !busy; -} - -static inline void arch_read_unlock(arch_rwlock_t *lock) -{ - __asm__ __volatile__( - RISCV_RELEASE_BARRIER - " amoadd.w x0, %1, %0\n" - : "+A" (lock->lock) - : "r" (-1) - : "memory"); -} - -static inline void arch_write_unlock(arch_rwlock_t *lock) -{ - smp_store_release(&lock->lock, 0); -} - -#endif /* _ASM_RISCV_SPINLOCK_H */ diff --git a/arch/riscv/include/asm/spinlock_types.h b/arch/riscv/include/asm/spinlock_types.h deleted file mode 100644 index 5a35a49505da..000000000000 --- a/arch/riscv/include/asm/spinlock_types.h +++ /dev/null @@ -1,25 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2015 Regents of the University of California - */ - -#ifndef _ASM_RISCV_SPINLOCK_TYPES_H -#define _ASM_RISCV_SPINLOCK_TYPES_H - -#ifndef __LINUX_SPINLOCK_TYPES_RAW_H -# error "please don't include this file directly" -#endif - -typedef struct { - volatile unsigned int lock; -} arch_spinlock_t; - -#define __ARCH_SPIN_LOCK_UNLOCKED { 0 } - -typedef struct { - volatile unsigned int lock; -} arch_rwlock_t; - -#define __ARCH_RW_LOCK_UNLOCKED { 0 } - -#endif /* _ASM_RISCV_SPINLOCK_TYPES_H */ diff --git a/arch/sparc/include/uapi/asm/stat.h b/arch/sparc/include/uapi/asm/stat.h index 732c41720e24..e03d6f8ec301 100644 --- a/arch/sparc/include/uapi/asm/stat.h +++ b/arch/sparc/include/uapi/asm/stat.h @@ -8,11 +8,11 @@ /* 64 bit sparc */ struct stat { unsigned int st_dev; - ino_t st_ino; - mode_t st_mode; + __kernel_ino_t st_ino; + __kernel_mode_t st_mode; short st_nlink; - uid_t st_uid; - gid_t st_gid; + __kernel_uid_t st_uid; + __kernel_gid_t st_gid; unsigned int st_rdev; long st_size; long st_atime; @@ -51,8 +51,8 @@ struct stat64 { /* 32 bit sparc */ struct stat { unsigned short st_dev; - ino_t st_ino; - mode_t st_mode; + __kernel_ino_t st_ino; + __kernel_mode_t st_mode; short st_nlink; unsigned short st_uid; unsigned short st_gid; |