Pull sh updates from John Paul Adrian Glaubitz:
"This is a bit larger than my previous one and mainly consists of
clean-up work in the arch/sh directory by Geert Uytterhoeven and Randy
Dunlap.
Additionally, this fixes a bug in the Storage Queue code that was
discovered while I was reviewing a patch to switch the code to the
bitmap API by Christophe Jaillet.
So this contains both a fix for the original bug in the Storage Queue
code that can be backported later as well as the Christophe's patch to
swich the code to the bitmap API.
Summary:
- Use generic GCC library routines
- sq: Use the bitmap API when applicable
- sq: Fix incorrect element size for allocating bitmap buffer
- pci: Remove unused variable in SH-7786 PCI Express code
- mcount.S: fix build error when PRINTK is not enabled
- remove sh5/sh64 last fragments
- math-emu: fix macro redefined warning
- init: use OF_EARLY_FLATTREE for early init
- nmi_debug: fix return value of __setup handler
- SH2007: drop the bad URL info"
* tag 'sh-for-v6.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
sh: Replace <uapi/asm/types.h> by <asm-generic/int-ll64.h>
sh: Use generic GCC library routines
sh: sq: Use the bitmap API when applicable
sh: sq: Fix incorrect element size for allocating bitmap buffer
sh: pci: Remove unused variable in SH-7786 PCI Express code
sh: mcount.S: fix build error when PRINTK is not enabled
sh: remove sh5/sh64 last fragments
sh: math-emu: fix macro redefined warning
sh: init: use OF_EARLY_FLATTREE for early init
sh: nmi_debug: fix return value of __setup handler
sh: SH2007: drop the bad URL info
But some architectures such as x86 and sparc have aliases.
- x86: i386 for 32 bit, x86_64 for 64 bit
-- sh: sh for 32 bit, sh64 for 64 bit
- sparc: sparc32 for 32 bit, sparc64 for 64 bit
CROSS_COMPILE
ia64 - is safe_halt call racy vs interrupts? (does it sleep?) (See #4a)
-sh64 - Is sleeping racy vs interrupts? (See #4a)
-
sparc - IRQs on at this point(?), change local_irq_save to _disable.
- TODO: needs secondary CPUs to disable preempt (See #1)
ia64 - safe_halt的调用与中断相比，是否很荒谬？ (它睡眠了吗) (参考 #4a)
-sh64 - 睡眠与中断相比，是否很荒谬？ (参考 #4a)
-
sparc - 在这一点上，IRQ是开着的（？），把local_irq_save改为_disable。
- 待办事项: 需要第二个CPU来禁用抢占 (参考 #1)
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IRQ_SHOW
+ select GENERIC_LIB_ASHLDI3
+ select GENERIC_LIB_ASHRDI3
+ select GENERIC_LIB_LSHRDI3
select GENERIC_PCI_IOMAP if PCI
select GENERIC_SCHED_CLOCK
select GENERIC_SMP_IDLE_THREAD
config STACK_DEBUG
bool "Check for stack overflows"
- depends on DEBUG_KERNEL
+ depends on DEBUG_KERNEL && PRINTK
help
This option will cause messages to be printed if free stack space
drops below a certain limit. Saying Y here will add overhead to
intended for embedded applications.
It has an Ethernet interface (SMC9118), direct connected
Compact Flash socket, two serial ports and PC-104 bus.
- More information at <http://sh2000.sh-linux.org>.
config SH_APSH4A3A
bool "AP-SH4A-3A"
-// SPDX-License-Identifier: GPL-2.0-only
-#include "../../lib/ashldi3.c"
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include "../../../../lib/ashldi3.c"
static struct sh7786_pcie_port *sh7786_pcie_ports;
static unsigned int nr_ports;
-static unsigned long dma_pfn_offset;
size_t memsize;
u64 memstart;
#ifndef __ASM_SH_TYPES_H
#define __ASM_SH_TYPES_H
-#include <uapi/asm/types.h>
+#include <asm-generic/int-ll64.h>
/*
* These aren't exported outside the kernel to avoid name space clashes
static int __init sq_api_init(void)
{
unsigned int nr_pages = 0x04000000 >> PAGE_SHIFT;
- unsigned int size = (nr_pages + (BITS_PER_LONG - 1)) / BITS_PER_LONG;
int ret = -ENOMEM;
printk(KERN_NOTICE "sq: Registering store queue API.\n");
if (unlikely(!sq_cache))
return ret;
- sq_bitmap = kzalloc(size, GFP_KERNEL);
+ sq_bitmap = bitmap_zalloc(nr_pages, GFP_KERNEL);
if (unlikely(!sq_bitmap))
goto out;
return 0;
out:
- kfree(sq_bitmap);
+ bitmap_free(sq_bitmap);
kmem_cache_destroy(sq_cache);
return ret;
static void __exit sq_api_exit(void)
{
subsys_interface_unregister(&sq_interface);
- kfree(sq_bitmap);
+ bitmap_free(sq_bitmap);
kmem_cache_destroy(sq_cache);
}
ldc r0, r6_bank
#endif
-#ifdef CONFIG_OF_FLATTREE
+#ifdef CONFIG_OF_EARLY_FLATTREE
mov r4, r12 ! Store device tree blob pointer in r12
#endif
10:
#endif
-#ifdef CONFIG_OF_FLATTREE
+#ifdef CONFIG_OF_EARLY_FLATTREE
mov.l 8f, r0 ! Make flat device tree available early.
jsr @r0
mov r12, r4
5: .long start_kernel
6: .long cpu_init
7: .long init_thread_union
-#if defined(CONFIG_OF_FLATTREE)
+#if defined(CONFIG_OF_EARLY_FLATTREE)
8: .long sh_fdt_init
#endif
register_die_notifier(&nmi_debug_nb);
if (*str != '=')
- return 0;
+ return 1;
for (p = str + 1; *p; p = sep + 1) {
sep = strchr(p, ',');
break;
}
- return 0;
+ return 1;
}
__setup("nmi_debug", nmi_debug_setup);
{
}
-#ifdef CONFIG_OF_FLATTREE
+#ifdef CONFIG_OF_EARLY_FLATTREE
void __ref sh_fdt_init(phys_addr_t dt_phys)
{
static int done = 0;
/* Let earlyprintk output early console messages */
sh_early_platform_driver_probe("earlyprintk", 1, 1);
-#ifdef CONFIG_OF_FLATTREE
+#ifdef CONFIG_OF_EARLY_FLATTREE
#ifdef CONFIG_USE_BUILTIN_DTB
unflatten_and_copy_device_tree();
#else
checksum.o strlen.o div64.o div64-generic.o
# Extracted from libgcc
-obj-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \
- ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o \
- udiv_qrnnd.o
+obj-y += movmem.o ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o udiv_qrnnd.o
udivsi3-y := udivsi3_i4i-Os.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/module.h>
-
-#include "libgcc.h"
-
-long long __ashldi3(long long u, word_type b)
-{
- DWunion uu, w;
- word_type bm;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
- bm = 32 - b;
-
- if (bm <= 0) {
- w.s.low = 0;
- w.s.high = (unsigned int) uu.s.low << -bm;
- } else {
- const unsigned int carries = (unsigned int) uu.s.low >> bm;
-
- w.s.low = (unsigned int) uu.s.low << b;
- w.s.high = ((unsigned int) uu.s.high << b) | carries;
- }
-
- return w.ll;
-}
-
-EXPORT_SYMBOL(__ashldi3);
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/module.h>
-
-#include "libgcc.h"
-
-long long __ashrdi3(long long u, word_type b)
-{
- DWunion uu, w;
- word_type bm;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
- bm = 32 - b;
-
- if (bm <= 0) {
- /* w.s.high = 1..1 or 0..0 */
- w.s.high =
- uu.s.high >> 31;
- w.s.low = uu.s.high >> -bm;
- } else {
- const unsigned int carries = (unsigned int) uu.s.high << bm;
-
- w.s.high = uu.s.high >> b;
- w.s.low = ((unsigned int) uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
-
-EXPORT_SYMBOL(__ashrdi3);
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/module.h>
-
-#include "libgcc.h"
-
-long long __lshrdi3(long long u, word_type b)
-{
- DWunion uu, w;
- word_type bm;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
- bm = 32 - b;
-
- if (bm <= 0) {
- w.s.high = 0;
- w.s.low = (unsigned int) uu.s.high >> -bm;
- } else {
- const unsigned int carries = (unsigned int) uu.s.high << bm;
-
- w.s.high = (unsigned int) uu.s.high >> b;
- w.s.low = ((unsigned int) uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
-
-EXPORT_SYMBOL(__lshrdi3);
} while (0)
#define abort() return 0
-
-#define __BYTE_ORDER __LITTLE_ENDIAN
-
-
# IA64 port via Andreas Dilger
# Arm port by Holger Schurig
-# sh64 port by Paul Mundt
# M68k port by Geert Uytterhoeven and Andreas Schwab
# AArch64, PARISC ports by Kyle McMartin
# 100092: e3 f0 ff c8 ff 71 lay %r15,-56(%r15)
$re = qr/.*(?:lay|ag?hi).*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})
(?:\(\%r15\))?$/ox;
- } elsif ($arch =~ /^sh64$/) {
- #XXX: we only check for the immediate case presently,
- # though we will want to check for the movi/sub
- # pair for larger users. -- PFM.
- #a00048e0: d4fc40f0 addi.l r15,-240,r15
- $re = qr/.*addi\.l.*r15,-(([0-9]{2}|[3-9])[0-9]{2}),r15/o;
} elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
# f0019d10: 9d e3 bf 90 save %sp, -112, %sp
$re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
const char *const sh_triplets[] = {
"sh-unknown-linux-gnu-",
- "sh64-unknown-linux-gnu-",
"sh-linux-gnu-",
- "sh64-linux-gnu-",
NULL
};
SRCARCH := sparc
endif
-# Additional ARCH settings for sh
-ifeq ($(ARCH),sh64)
- SRCARCH := sh
-endif
-
# Additional ARCH settings for loongarch
ifeq ($(ARCH),loongarch32)
SRCARCH := loongarch
endif
-ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
+ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sparc64 x86_64))
TEST_GEN_FILES += va_128TBswitch
TEST_GEN_FILES += virtual_address_range
TEST_GEN_FILES += write_to_hugetlbfs
fi
# filter 64bit architectures
-ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64"
+ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sparc64 x86_64"
if [ -z "$ARCH" ]; then
ARCH=$(uname -m 2>/dev/null | sed -e 's/aarch64.*/arm64/')
fi
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