LoongArch: Adjust misc routines for 32BIT/64BIT

Adjust misc routines for both 32BIT and 64BIT, including: bitops, bswap,
checksum, string, jump label, unaligned access emulator, suspend/wakeup
routines, etc.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

4 files changed, 27 insertions, 2 deletions

diff --git a/arch/loongarch/include/asm/bitops.h b/arch/loongarch/include/asm/bitops.h
index 69e00f8d8034..411106bf9902 100644
--- a/arch/loongarch/include/asm/bitops.h
+++ b/arch/loongarch/include/asm/bitops.h
@@ -13,11 +13,22 @@
 
 #include <asm/barrier.h>
 
+#ifdef CONFIG_32BIT_REDUCED
+
+#include <asm-generic/bitops/ffs.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/__fls.h>
+
+#else /* CONFIG_32BIT_STANDARD || CONFIG_64BIT  */
+
 #include <asm-generic/bitops/builtin-ffs.h>
 #include <asm-generic/bitops/builtin-fls.h>
 #include <asm-generic/bitops/builtin-__ffs.h>
 #include <asm-generic/bitops/builtin-__fls.h>
 
+#endif
+
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/fls64.h>
 
diff --git a/arch/loongarch/include/asm/checksum.h b/arch/loongarch/include/asm/checksum.h
index cabbf6af44c4..cc2754e0aa25 100644
--- a/arch/loongarch/include/asm/checksum.h
+++ b/arch/loongarch/include/asm/checksum.h
@@ -9,6 +9,8 @@
 #include <linux/bitops.h>
 #include <linux/in6.h>
 
+#ifdef CONFIG_64BIT
+
 #define _HAVE_ARCH_IPV6_CSUM
 __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
 			const struct in6_addr *daddr,
@@ -61,6 +63,8 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
 extern unsigned int do_csum(const unsigned char *buff, int len);
 #define do_csum do_csum
 
+#endif
+
 #include <asm-generic/checksum.h>
 
 #endif	/* __ASM_CHECKSUM_H */
diff --git a/arch/loongarch/include/asm/jump_label.h b/arch/loongarch/include/asm/jump_label.h
index 4000c7603d8e..dcaecf69ea5a 100644
--- a/arch/loongarch/include/asm/jump_label.h
+++ b/arch/loongarch/include/asm/jump_label.h
@@ -10,15 +10,23 @@
 #ifndef __ASSEMBLER__
 
 #include <linux/types.h>
+#include <linux/stringify.h>
+#include <asm/asm.h>
 
 #define JUMP_LABEL_NOP_SIZE	4
 
+#ifdef CONFIG_32BIT
+#define JUMP_LABEL_TYPE		".long "
+#else
+#define JUMP_LABEL_TYPE		".quad "
+#endif
+
 /* This macro is also expanded on the Rust side. */
 #define JUMP_TABLE_ENTRY(key, label)			\
 	 ".pushsection	__jump_table, \"aw\"	\n\t"	\
-	 ".align	3			\n\t"	\
+	 ".align	" __stringify(PTRLOG) "	\n\t"	\
 	 ".long		1b - ., " label " - .	\n\t"	\
-	 ".quad		" key " - .		\n\t"	\
+	 JUMP_LABEL_TYPE  key " - .		\n\t"	\
 	 ".popsection				\n\t"
 
 #define ARCH_STATIC_BRANCH_ASM(key, label)		\
diff --git a/arch/loongarch/include/asm/string.h b/arch/loongarch/include/asm/string.h
index 5bb5a90d2681..bfa3fd879c7f 100644
--- a/arch/loongarch/include/asm/string.h
+++ b/arch/loongarch/include/asm/string.h
@@ -5,6 +5,7 @@
 #ifndef _ASM_STRING_H
 #define _ASM_STRING_H
 
+#ifdef CONFIG_64BIT
 #define __HAVE_ARCH_MEMSET
 extern void *memset(void *__s, int __c, size_t __count);
 extern void *__memset(void *__s, int __c, size_t __count);
@@ -16,6 +17,7 @@ extern void *__memcpy(void *__to, __const__ void *__from, size_t __n);
 #define __HAVE_ARCH_MEMMOVE
 extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
 extern void *__memmove(void *__dest, __const__ void *__src, size_t __n);
+#endif
 
 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)