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-rw-r--r--arch/Kconfig8
-rw-r--r--arch/m68k/Kconfig2
-rw-r--r--arch/m68k/atari/nvram.c6
-rw-r--r--arch/m68k/include/asm/libgcc.h27
-rw-r--r--arch/m68k/include/asm/vga.h8
-rw-r--r--arch/m68k/lib/Makefile2
-rw-r--r--arch/m68k/lib/muldi3.c97
-rw-r--r--drivers/zorro/zorro-sysfs.c10
-rw-r--r--include/linux/libgcc.h4
9 files changed, 55 insertions, 109 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 6682b2a53e34..b8a4ff365582 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1526,6 +1526,14 @@ config HAVE_ARCH_COMPILER_H
linux/compiler-*.h in order to override macro definitions that those
headers generally provide.
+config HAVE_ARCH_LIBGCC_H
+ bool
+ help
+ An architecture can select this if it provides an
+ asm/libgcc.h header that should be included after
+ linux/libgcc.h in order to override macro definitions that
+ header generally provides.
+
config HAVE_ARCH_PREL32_RELOCATIONS
bool
help
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 7c4f7bcc89d7..b2ed0308c0ea 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -23,7 +23,9 @@ config M68K
select GENERIC_LIB_ASHLDI3
select GENERIC_LIB_ASHRDI3
select GENERIC_LIB_LSHRDI3
+ select GENERIC_LIB_MULDI3
select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA
+ select HAVE_ARCH_LIBGCC_H
select HAVE_ARCH_SECCOMP
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ASM_MODVERSIONS
diff --git a/arch/m68k/atari/nvram.c b/arch/m68k/atari/nvram.c
index 7000d2443aa3..ededc31375c3 100644
--- a/arch/m68k/atari/nvram.c
+++ b/arch/m68k/atari/nvram.c
@@ -16,7 +16,9 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/string_choices.h>
#include <linux/types.h>
+
#include <asm/atarihw.h>
#include <asm/atariints.h>
@@ -198,7 +200,7 @@ static void atari_nvram_proc_read(unsigned char *nvram, struct seq_file *seq,
seq_printf(seq, "0x%02x (undefined)\n", nvram[1]);
seq_printf(seq, "SCSI arbitration : %s\n",
- (nvram[16] & 0x80) ? "on" : "off");
+ str_on_off(nvram[16] & 0x80));
seq_puts(seq, "SCSI host ID : ");
if (nvram[16] & 0x80)
seq_printf(seq, "%d\n", nvram[16] & 7);
@@ -236,7 +238,7 @@ static void atari_nvram_proc_read(unsigned char *nvram, struct seq_file *seq,
vmode & 16 ? "VGA" : "TV", vmode & 32 ? "PAL" : "NTSC");
seq_printf(seq,
" %soverscan, compat. mode %s%s\n",
- vmode & 64 ? "" : "no ", vmode & 128 ? "on" : "off",
+ vmode & 64 ? "" : "no ", str_on_off(vmode & 128),
vmode & 256 ?
(vmode & 16 ? ", line doubling" : ", half screen") : "");
}
diff --git a/arch/m68k/include/asm/libgcc.h b/arch/m68k/include/asm/libgcc.h
new file mode 100644
index 000000000000..27e17195bd7b
--- /dev/null
+++ b/arch/m68k/include/asm/libgcc.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_M68K_LIBGCC_H
+#define __ASM_M68K_LIBGCC_H
+
+#ifndef CONFIG_CPU_HAS_NO_MULDIV64
+/*
+ * For those 68K CPUs that support 64bit multiply define umul_ppm()
+ * for the common muldi3 libgcc helper function (in lib/muldi3.c).
+ * CPUs that don't have it (like the original 68000 and ColdFire)
+ * will fallback to using the C-coded version of umul_ppmm().
+ */
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ unsigned long __u = (u), __v = (v); \
+ unsigned long __w0, __w1; \
+ \
+ __asm__ ("mulu%.l %3,%1:%0" \
+ : "=d" (__w0), \
+ "=d" (__w1) \
+ : "%0" (__u), \
+ "dmi" (__v)); \
+ \
+ (w0) = __w0; (w1) = __w1; \
+ } while (0)
+#endif /* !CONFIG_CPU_HAS_NO_MULDIV64 */
+
+#endif /* __ASM_M68K_LIBGCC_H */
diff --git a/arch/m68k/include/asm/vga.h b/arch/m68k/include/asm/vga.h
index 4742e6bc3ab8..cdd414fa8710 100644
--- a/arch/m68k/include/asm/vga.h
+++ b/arch/m68k/include/asm/vga.h
@@ -9,7 +9,7 @@
*/
#ifndef CONFIG_PCI
-#include <asm/raw_io.h>
+#include <asm/io.h>
#include <asm/kmap.h>
/*
@@ -29,9 +29,9 @@
#define inw_p(port) 0
#define outb_p(port, val) do { } while (0)
#define outw(port, val) do { } while (0)
-#define readb raw_inb
-#define writeb raw_outb
-#define writew raw_outw
+#define readb __raw_readb
+#define writeb __raw_writeb
+#define writew __raw_writew
#endif /* CONFIG_PCI */
#endif /* _ASM_M68K_VGA_H */
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile
index 9158688e6cc6..15278a95259e 100644
--- a/arch/m68k/lib/Makefile
+++ b/arch/m68k/lib/Makefile
@@ -4,7 +4,7 @@
# Makefile for m68k-specific library files..
#
-lib-y := muldi3.o memcpy.o memset.o memmove.o
+lib-y := memcpy.o memset.o memmove.o
lib-$(CONFIG_MMU) += uaccess.o
lib-$(CONFIG_CPU_HAS_NO_MULDIV64) += mulsi3.o divsi3.o udivsi3.o
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c
deleted file mode 100644
index 5012a9b218c7..000000000000
--- a/arch/m68k/lib/muldi3.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
- gcc-2.7.2.3/longlong.h which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details. */
-
-#include <linux/compiler.h>
-#include <linux/export.h>
-#include <linux/libgcc.h>
-
-#ifdef CONFIG_CPU_HAS_NO_MULDIV64
-
-#define SI_TYPE_SIZE 32
-#define __BITS4 (SI_TYPE_SIZE / 4)
-#define __ll_B (1L << (SI_TYPE_SIZE / 2))
-#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
-#define __ll_highpart(t) ((USItype) (t) / __ll_B)
-
-#define umul_ppmm(w1, w0, u, v) \
- do { \
- USItype __x0, __x1, __x2, __x3; \
- USItype __ul, __vl, __uh, __vh; \
- \
- __ul = __ll_lowpart (u); \
- __uh = __ll_highpart (u); \
- __vl = __ll_lowpart (v); \
- __vh = __ll_highpart (v); \
- \
- __x0 = (USItype) __ul * __vl; \
- __x1 = (USItype) __ul * __vh; \
- __x2 = (USItype) __uh * __vl; \
- __x3 = (USItype) __uh * __vh; \
- \
- __x1 += __ll_highpart (__x0);/* this can't give carry */ \
- __x1 += __x2; /* but this indeed can */ \
- if (__x1 < __x2) /* did we get it? */ \
- __x3 += __ll_B; /* yes, add it in the proper pos. */ \
- \
- (w1) = __x3 + __ll_highpart (__x1); \
- (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
- } while (0)
-
-#else
-
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("mulu%.l %3,%1:%0" \
- : "=d" ((USItype)(w0)), \
- "=d" ((USItype)(w1)) \
- : "%0" ((USItype)(u)), \
- "dmi" ((USItype)(v)))
-
-#endif
-
-#define __umulsidi3(u, v) \
- ({DIunion __w; \
- umul_ppmm (__w.s.high, __w.s.low, u, v); \
- __w.ll; })
-
-typedef int SItype __mode(SI);
-typedef unsigned int USItype __mode(SI);
-typedef int DItype __mode(DI);
-typedef int word_type __mode(__word__);
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
- struct DIstruct s;
- DItype ll;
-} DIunion;
-
-DItype
-__muldi3 (DItype u, DItype v)
-{
- DIunion w;
- DIunion uu, vv;
-
- uu.ll = u;
- vv.ll = v;
-
- w.ll = __umulsidi3 (uu.s.low, vv.s.low);
- w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
- + (USItype) uu.s.high * (USItype) vv.s.low);
-
- return w.ll;
-}
-EXPORT_SYMBOL(__muldi3);
diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 3d34dba9bb2d..10aedcd21363 100644
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -81,7 +81,7 @@ static struct attribute *zorro_device_attrs[] = {
};
static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
- struct bin_attribute *bin_attr,
+ const struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct zorro_dev *z = to_zorro_dev(kobj_to_dev(kobj));
@@ -98,23 +98,23 @@ static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
}
-static struct bin_attribute zorro_config_attr = {
+static const struct bin_attribute zorro_config_attr = {
.attr = {
.name = "config",
.mode = S_IRUGO,
},
.size = sizeof(struct ConfigDev),
- .read = zorro_read_config,
+ .read_new = zorro_read_config,
};
-static struct bin_attribute *zorro_device_bin_attrs[] = {
+static const struct bin_attribute *const zorro_device_bin_attrs[] = {
&zorro_config_attr,
NULL
};
static const struct attribute_group zorro_device_attr_group = {
.attrs = zorro_device_attrs,
- .bin_attrs = zorro_device_bin_attrs,
+ .bin_attrs_new = zorro_device_bin_attrs,
};
const struct attribute_group *zorro_device_attribute_groups[] = {
diff --git a/include/linux/libgcc.h b/include/linux/libgcc.h
index fc388da6a027..0d68f9d6a6a7 100644
--- a/include/linux/libgcc.h
+++ b/include/linux/libgcc.h
@@ -34,4 +34,8 @@ long long notrace __lshrdi3(long long u, word_type b);
long long notrace __muldi3(long long u, long long v);
word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b);
+#ifdef CONFIG_HAVE_ARCH_LIBGCC_H
+#include <asm/libgcc.h>
+#endif
+
#endif /* __ASM_LIBGCC_H */
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-31 23:03:09 +0000