18 files changed, 130 insertions, 257 deletions

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 0a6ef613124c..a508813d5ea2 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -10,6 +10,7 @@ config LOONGARCH
 	select ARCH_ENABLE_MEMORY_HOTPLUG
 	select ARCH_ENABLE_MEMORY_HOTREMOVE
 	select ARCH_HAS_ACPI_TABLE_UPGRADE	if ACPI
+	select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
 	select ARCH_HAS_PTE_SPECIAL
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_INLINE_READ_LOCK if !PREEMPTION
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile
index f4cb54d5afd6..01b57b726322 100644
--- a/arch/loongarch/Makefile
+++ b/arch/loongarch/Makefile
@@ -97,7 +97,7 @@ KBUILD_LDFLAGS	+= -m $(ld-emul)
 
 ifdef CONFIG_LOONGARCH
 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
-	egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
+	grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
 	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
 endif
 
diff --git a/arch/loongarch/include/asm/acpi.h b/arch/loongarch/include/asm/acpi.h
index 17162f494b9b..825c2519b9d1 100644
--- a/arch/loongarch/include/asm/acpi.h
+++ b/arch/loongarch/include/asm/acpi.h
@@ -31,148 +31,6 @@ static inline bool acpi_has_cpu_in_madt(void)
 
 extern struct list_head acpi_wakeup_device_list;
 
-/*
- * Temporary definitions until the core ACPICA code gets updated (see
- * 1656837932-18257-1-git-send-email-lvjianmin@loongson.cn and its
- * follow-ups for the "rationale").
- *
- * Once the "legal reasons" are cleared and that the code is merged,
- * this can be dropped entierely.
- */
-#if (ACPI_CA_VERSION == 0x20220331 && !defined(LOONGARCH_ACPICA_EXT))
-
-#define LOONGARCH_ACPICA_EXT	1
-
-#define	ACPI_MADT_TYPE_CORE_PIC		17
-#define	ACPI_MADT_TYPE_LIO_PIC		18
-#define	ACPI_MADT_TYPE_HT_PIC		19
-#define	ACPI_MADT_TYPE_EIO_PIC		20
-#define	ACPI_MADT_TYPE_MSI_PIC		21
-#define	ACPI_MADT_TYPE_BIO_PIC		22
-#define	ACPI_MADT_TYPE_LPC_PIC		23
-
-/* Values for Version field above */
-
-enum acpi_madt_core_pic_version {
-	ACPI_MADT_CORE_PIC_VERSION_NONE = 0,
-	ACPI_MADT_CORE_PIC_VERSION_V1 = 1,
-	ACPI_MADT_CORE_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_lio_pic_version {
-	ACPI_MADT_LIO_PIC_VERSION_NONE = 0,
-	ACPI_MADT_LIO_PIC_VERSION_V1 = 1,
-	ACPI_MADT_LIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_eio_pic_version {
-	ACPI_MADT_EIO_PIC_VERSION_NONE = 0,
-	ACPI_MADT_EIO_PIC_VERSION_V1 = 1,
-	ACPI_MADT_EIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_ht_pic_version {
-	ACPI_MADT_HT_PIC_VERSION_NONE = 0,
-	ACPI_MADT_HT_PIC_VERSION_V1 = 1,
-	ACPI_MADT_HT_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_bio_pic_version {
-	ACPI_MADT_BIO_PIC_VERSION_NONE = 0,
-	ACPI_MADT_BIO_PIC_VERSION_V1 = 1,
-	ACPI_MADT_BIO_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_msi_pic_version {
-	ACPI_MADT_MSI_PIC_VERSION_NONE = 0,
-	ACPI_MADT_MSI_PIC_VERSION_V1 = 1,
-	ACPI_MADT_MSI_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-enum acpi_madt_lpc_pic_version {
-	ACPI_MADT_LPC_PIC_VERSION_NONE = 0,
-	ACPI_MADT_LPC_PIC_VERSION_V1 = 1,
-	ACPI_MADT_LPC_PIC_VERSION_RESERVED = 2	/* 2 and greater are reserved */
-};
-
-#pragma pack(1)
-
-/* Core Interrupt Controller */
-
-struct acpi_madt_core_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u32 processor_id;
-	u32 core_id;
-	u32 flags;
-};
-
-/* Legacy I/O Interrupt Controller */
-
-struct acpi_madt_lio_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u64 address;
-	u16 size;
-	u8 cascade[2];
-	u32 cascade_map[2];
-};
-
-/* Extend I/O Interrupt Controller */
-
-struct acpi_madt_eio_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u8 cascade;
-	u8 node;
-	u64 node_map;
-};
-
-/* HT Interrupt Controller */
-
-struct acpi_madt_ht_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u64 address;
-	u16 size;
-	u8 cascade[8];
-};
-
-/* Bridge I/O Interrupt Controller */
-
-struct acpi_madt_bio_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u64 address;
-	u16 size;
-	u16 id;
-	u16 gsi_base;
-};
-
-/* MSI Interrupt Controller */
-
-struct acpi_madt_msi_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u64 msg_address;
-	u32 start;
-	u32 count;
-};
-
-/* LPC Interrupt Controller */
-
-struct acpi_madt_lpc_pic {
-	struct acpi_subtable_header header;
-	u8 version;
-	u64 address;
-	u16 size;
-	u8 cascade;
-};
-
-#pragma pack()
-
-#endif
-
 #endif /* !CONFIG_ACPI */
 
 #define ACPI_TABLE_UPGRADE_MAX_PHYS ARCH_LOW_ADDRESS_LIMIT
diff --git a/arch/loongarch/include/asm/efi.h b/arch/loongarch/include/asm/efi.h
index 174567b00ddb..97f16e60c6ff 100644
--- a/arch/loongarch/include/asm/efi.h
+++ b/arch/loongarch/include/asm/efi.h
@@ -19,18 +19,18 @@ void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
 #define EFI_ALLOC_ALIGN		SZ_64K
 #define EFI_RT_VIRTUAL_OFFSET	CSR_DMW0_BASE
 
-static inline struct screen_info *alloc_screen_info(void)
+static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
 {
-	return &screen_info;
+	return ULONG_MAX;
 }
 
-static inline void free_screen_info(struct screen_info *si)
+static inline unsigned long efi_get_kimg_min_align(void)
 {
+	return SZ_2M;
 }
 
-static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
-{
-	return ULONG_MAX;
-}
+#define EFI_KIMG_PREFERRED_ADDRESS	PHYSADDR(VMLINUX_LOAD_ADDRESS)
+
+unsigned long kernel_entry_address(void);
 
 #endif /* _ASM_LOONGARCH_EFI_H */
diff --git a/arch/loongarch/include/asm/irq.h b/arch/loongarch/include/asm/irq.h
index d06d4542b634..a115e8999c69 100644
--- a/arch/loongarch/include/asm/irq.h
+++ b/arch/loongarch/include/asm/irq.h
@@ -93,7 +93,7 @@ int liointc_acpi_init(struct irq_domain *parent,
 int eiointc_acpi_init(struct irq_domain *parent,
 					struct acpi_madt_eio_pic *acpi_eiointc);
 
-struct irq_domain *htvec_acpi_init(struct irq_domain *parent,
+int htvec_acpi_init(struct irq_domain *parent,
 					struct acpi_madt_ht_pic *acpi_htvec);
 int pch_lpc_acpi_init(struct irq_domain *parent,
 					struct acpi_madt_lpc_pic *acpi_pchlpc);
@@ -117,7 +117,7 @@ extern struct fwnode_handle *liointc_handle;
 extern struct fwnode_handle *pch_lpc_handle;
 extern struct fwnode_handle *pch_pic_handle[MAX_IO_PICS];
 
-extern irqreturn_t loongson3_ipi_interrupt(int irq, void *dev);
+extern irqreturn_t loongson_ipi_interrupt(int irq, void *dev);
 
 #include <asm-generic/irq.h>
 
diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index 022ec6be3602..7a34e900d8c1 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -354,13 +354,17 @@ static inline pte_t pte_mkclean(pte_t pte)
 
 static inline pte_t pte_mkdirty(pte_t pte)
 {
-	pte_val(pte) |= (_PAGE_DIRTY | _PAGE_MODIFIED);
+	pte_val(pte) |= _PAGE_MODIFIED;
+	if (pte_val(pte) & _PAGE_WRITE)
+		pte_val(pte) |= _PAGE_DIRTY;
 	return pte;
 }
 
 static inline pte_t pte_mkwrite(pte_t pte)
 {
-	pte_val(pte) |= (_PAGE_WRITE | _PAGE_DIRTY);
+	pte_val(pte) |= _PAGE_WRITE;
+	if (pte_val(pte) & _PAGE_MODIFIED)
+		pte_val(pte) |= _PAGE_DIRTY;
 	return pte;
 }
 
@@ -458,7 +462,9 @@ static inline int pmd_write(pmd_t pmd)
 
 static inline pmd_t pmd_mkwrite(pmd_t pmd)
 {
-	pmd_val(pmd) |= (_PAGE_WRITE | _PAGE_DIRTY);
+	pmd_val(pmd) |= _PAGE_WRITE;
+	if (pmd_val(pmd) & _PAGE_MODIFIED)
+		pmd_val(pmd) |= _PAGE_DIRTY;
 	return pmd;
 }
 
@@ -481,7 +487,9 @@ static inline pmd_t pmd_mkclean(pmd_t pmd)
 
 static inline pmd_t pmd_mkdirty(pmd_t pmd)
 {
-	pmd_val(pmd) |= (_PAGE_DIRTY | _PAGE_MODIFIED);
+	pmd_val(pmd) |= _PAGE_MODIFIED;
+	if (pmd_val(pmd) & _PAGE_WRITE)
+		pmd_val(pmd) |= _PAGE_DIRTY;
 	return pmd;
 }
 
diff --git a/arch/loongarch/include/asm/smp.h b/arch/loongarch/include/asm/smp.h
index 71189b28bfb2..d82687390b4a 100644
--- a/arch/loongarch/include/asm/smp.h
+++ b/arch/loongarch/include/asm/smp.h
@@ -19,21 +19,21 @@ extern cpumask_t cpu_sibling_map[];
 extern cpumask_t cpu_core_map[];
 extern cpumask_t cpu_foreign_map[];
 
-void loongson3_smp_setup(void);
-void loongson3_prepare_cpus(unsigned int max_cpus);
-void loongson3_boot_secondary(int cpu, struct task_struct *idle);
-void loongson3_init_secondary(void);
-void loongson3_smp_finish(void);
-void loongson3_send_ipi_single(int cpu, unsigned int action);
-void loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action);
+void loongson_smp_setup(void);
+void loongson_prepare_cpus(unsigned int max_cpus);
+void loongson_boot_secondary(int cpu, struct task_struct *idle);
+void loongson_init_secondary(void);
+void loongson_smp_finish(void);
+void loongson_send_ipi_single(int cpu, unsigned int action);
+void loongson_send_ipi_mask(const struct cpumask *mask, unsigned int action);
 #ifdef CONFIG_HOTPLUG_CPU
-int loongson3_cpu_disable(void);
-void loongson3_cpu_die(unsigned int cpu);
+int loongson_cpu_disable(void);
+void loongson_cpu_die(unsigned int cpu);
 #endif
 
 static inline void plat_smp_setup(void)
 {
-	loongson3_smp_setup();
+	loongson_smp_setup();
 }
 
 static inline int raw_smp_processor_id(void)
@@ -78,35 +78,25 @@ extern void calculate_cpu_foreign_map(void);
  */
 extern void show_ipi_list(struct seq_file *p, int prec);
 
-/*
- * This function sends a 'reschedule' IPI to another CPU.
- * it goes straight through and wastes no time serializing
- * anything. Worst case is that we lose a reschedule ...
- */
-static inline void smp_send_reschedule(int cpu)
-{
-	loongson3_send_ipi_single(cpu, SMP_RESCHEDULE);
-}
-
 static inline void arch_send_call_function_single_ipi(int cpu)
 {
-	loongson3_send_ipi_single(cpu, SMP_CALL_FUNCTION);
+	loongson_send_ipi_single(cpu, SMP_CALL_FUNCTION);
 }
 
 static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 {
-	loongson3_send_ipi_mask(mask, SMP_CALL_FUNCTION);
+	loongson_send_ipi_mask(mask, SMP_CALL_FUNCTION);
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
 static inline int __cpu_disable(void)
 {
-	return loongson3_cpu_disable();
+	return loongson_cpu_disable();
 }
 
 static inline void __cpu_die(unsigned int cpu)
 {
-	loongson3_cpu_die(cpu);
+	loongson_cpu_die(cpu);
 }
 
 extern void play_dead(void);
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 335398482038..8319cc409009 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -56,23 +56,6 @@ void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
 		return ioremap_cache(phys, size);
 }
 
-void __init acpi_boot_table_init(void)
-{
-	/*
-	 * If acpi_disabled, bail out
-	 */
-	if (acpi_disabled)
-		return;
-
-	/*
-	 * Initialize the ACPI boot-time table parser.
-	 */
-	if (acpi_table_init()) {
-		disable_acpi();
-		return;
-	}
-}
-
 #ifdef CONFIG_SMP
 static int set_processor_mask(u32 id, u32 flags)
 {
@@ -156,13 +139,21 @@ static void __init acpi_process_madt(void)
 	loongson_sysconf.nr_cpus = num_processors;
 }
 
-int __init acpi_boot_init(void)
+void __init acpi_boot_table_init(void)
 {
 	/*
 	 * If acpi_disabled, bail out
 	 */
 	if (acpi_disabled)
-		return -1;
+		return;
+
+	/*
+	 * Initialize the ACPI boot-time table parser.
+	 */
+	if (acpi_table_init()) {
+		disable_acpi();
+		return;
+	}
 
 	loongson_sysconf.boot_cpu_id = read_csr_cpuid();
 
@@ -173,8 +164,6 @@ int __init acpi_boot_init(void)
 
 	/* Do not enable ACPI SPCR console by default */
 	acpi_parse_spcr(earlycon_acpi_spcr_enable, false);
-
-	return 0;
 }
 
 #ifdef CONFIG_ACPI_NUMA
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
index a31329971133..d75ce73e8ff8 100644
--- a/arch/loongarch/kernel/efi.c
+++ b/arch/loongarch/kernel/efi.c
@@ -52,6 +52,27 @@ void __init efi_runtime_init(void)
 	set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
 }
 
+unsigned long __initdata screen_info_table = EFI_INVALID_TABLE_ADDR;
+
+static void __init init_screen_info(void)
+{
+	struct screen_info *si;
+
+	if (screen_info_table == EFI_INVALID_TABLE_ADDR)
+		return;
+
+	si = early_memremap(screen_info_table, sizeof(*si));
+	if (!si) {
+		pr_err("Could not map screen_info config table\n");
+		return;
+	}
+	screen_info = *si;
+	memset(si, 0, sizeof(*si));
+	early_memunmap(si, sizeof(*si));
+
+	memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);
+}
+
 void __init efi_init(void)
 {
 	int size;
@@ -80,8 +101,7 @@ void __init efi_init(void)
 
 	set_bit(EFI_CONFIG_TABLES, &efi.flags);
 
-	if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI)
-		memblock_reserve(screen_info.lfb_base, screen_info.lfb_size);
+	init_screen_info();
 
 	if (boot_memmap == EFI_INVALID_TABLE_ADDR)
 		return;
diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S
index 84970e266658..57bada6b4e93 100644
--- a/arch/loongarch/kernel/head.S
+++ b/arch/loongarch/kernel/head.S
@@ -25,7 +25,8 @@ _head:
 	.dword	kernel_entry		/* Kernel entry point */
 	.dword	_end - _text		/* Kernel image effective size */
 	.quad	0			/* Kernel image load offset from start of RAM */
-	.org	0x3c			/* 0x20 ~ 0x3b reserved */
+	.org	0x38			/* 0x20 ~ 0x37 reserved */
+	.long	LINUX_PE_MAGIC
 	.long	pe_header - _head	/* Offset to the PE header */
 
 pe_header:
diff --git a/arch/loongarch/kernel/image-vars.h b/arch/loongarch/kernel/image-vars.h
index 88f5d81702df..e561989d02de 100644
--- a/arch/loongarch/kernel/image-vars.h
+++ b/arch/loongarch/kernel/image-vars.h
@@ -7,15 +7,7 @@
 
 #ifdef CONFIG_EFI_STUB
 
-__efistub_memcmp		= memcmp;
-__efistub_memchr		= memchr;
-__efistub_strcat		= strcat;
 __efistub_strcmp		= strcmp;
-__efistub_strlen		= strlen;
-__efistub_strncat		= strncat;
-__efistub_strnstr		= strnstr;
-__efistub_strnlen		= strnlen;
-__efistub_strrchr		= strrchr;
 __efistub_kernel_entry		= kernel_entry;
 __efistub_kernel_asize		= kernel_asize;
 __efistub_kernel_fsize		= kernel_fsize;
diff --git a/arch/loongarch/kernel/irq.c b/arch/loongarch/kernel/irq.c
index 1ba19c76563e..0524bf1169b7 100644
--- a/arch/loongarch/kernel/irq.c
+++ b/arch/loongarch/kernel/irq.c
@@ -117,7 +117,7 @@ void __init init_IRQ(void)
 	if (ipi_irq < 0)
 		panic("IPI IRQ mapping failed\n");
 	irq_set_percpu_devid(ipi_irq);
-	r = request_percpu_irq(ipi_irq, loongson3_ipi_interrupt, "IPI", &ipi_dummy_dev);
+	r = request_percpu_irq(ipi_irq, loongson_ipi_interrupt, "IPI", &ipi_dummy_dev);
 	if (r < 0)
 		panic("IPI IRQ request failed\n");
 #endif
diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c
index 2526b68f1c0f..d61c9f465b95 100644
--- a/arch/loongarch/kernel/process.c
+++ b/arch/loongarch/kernel/process.c
@@ -152,7 +152,7 @@ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
 		childregs->csr_crmd = p->thread.csr_crmd;
 		childregs->csr_prmd = p->thread.csr_prmd;
 		childregs->csr_ecfg = p->thread.csr_ecfg;
-		return 0;
+		goto out;
 	}
 
 	/* user thread */
@@ -171,14 +171,15 @@ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
 	 */
 	childregs->csr_euen = 0;
 
+	if (clone_flags & CLONE_SETTLS)
+		childregs->regs[2] = tls;
+
+out:
 	clear_tsk_thread_flag(p, TIF_USEDFPU);
 	clear_tsk_thread_flag(p, TIF_USEDSIMD);
 	clear_tsk_thread_flag(p, TIF_LSX_CTX_LIVE);
 	clear_tsk_thread_flag(p, TIF_LASX_CTX_LIVE);
 
-	if (clone_flags & CLONE_SETTLS)
-		childregs->regs[2] = tls;
-
 	return 0;
 }
 
@@ -293,7 +294,7 @@ unsigned long stack_top(void)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 
 	return sp & STACK_ALIGN;
 }
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 1eb63fa9bc81..ae436def7ee9 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -257,7 +257,6 @@ void __init platform_init(void)
 #ifdef CONFIG_ACPI
 	acpi_gbl_use_default_register_widths = false;
 	acpi_boot_table_init();
-	acpi_boot_init();
 #endif
 
 #ifdef CONFIG_NUMA
diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 781a4d4bdddc..14508d429ffa 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -136,12 +136,12 @@ static void ipi_write_action(int cpu, u32 action)
 	}
 }
 
-void loongson3_send_ipi_single(int cpu, unsigned int action)
+void loongson_send_ipi_single(int cpu, unsigned int action)
 {
 	ipi_write_action(cpu_logical_map(cpu), (u32)action);
 }
 
-void loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action)
+void loongson_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 {
 	unsigned int i;
 
@@ -149,7 +149,18 @@ void loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 		ipi_write_action(cpu_logical_map(i), (u32)action);
 }
 
-irqreturn_t loongson3_ipi_interrupt(int irq, void *dev)
+/*
+ * This function sends a 'reschedule' IPI to another CPU.
+ * it goes straight through and wastes no time serializing
+ * anything. Worst case is that we lose a reschedule ...
+ */
+void smp_send_reschedule(int cpu)
+{
+	loongson_send_ipi_single(cpu, SMP_RESCHEDULE);
+}
+EXPORT_SYMBOL_GPL(smp_send_reschedule);
+
+irqreturn_t loongson_ipi_interrupt(int irq, void *dev)
 {
 	unsigned int action;
 	unsigned int cpu = smp_processor_id();
@@ -169,7 +180,7 @@ irqreturn_t loongson3_ipi_interrupt(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-void __init loongson3_smp_setup(void)
+void __init loongson_smp_setup(void)
 {
 	cpu_data[0].core = cpu_logical_map(0) % loongson_sysconf.cores_per_package;
 	cpu_data[0].package = cpu_logical_map(0) / loongson_sysconf.cores_per_package;
@@ -178,7 +189,7 @@ void __init loongson3_smp_setup(void)
 	pr_info("Detected %i available CPU(s)\n", loongson_sysconf.nr_cpus);
 }
 
-void __init loongson3_prepare_cpus(unsigned int max_cpus)
+void __init loongson_prepare_cpus(unsigned int max_cpus)
 {
 	int i = 0;
 
@@ -193,7 +204,7 @@ void __init loongson3_prepare_cpus(unsigned int max_cpus)
 /*
  * Setup the PC, SP, and TP of a secondary processor and start it running!
  */
-void loongson3_boot_secondary(int cpu, struct task_struct *idle)
+void loongson_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long entry;
 
@@ -205,13 +216,13 @@ void loongson3_boot_secondary(int cpu, struct task_struct *idle)
 
 	csr_mail_send(entry, cpu_logical_map(cpu), 0);
 
-	loongson3_send_ipi_single(cpu, SMP_BOOT_CPU);
+	loongson_send_ipi_single(cpu, SMP_BOOT_CPU);
 }
 
 /*
  * SMP init and finish on secondary CPUs
  */
-void loongson3_init_secondary(void)
+void loongson_init_secondary(void)
 {
 	unsigned int cpu = smp_processor_id();
 	unsigned int imask = ECFGF_IP0 | ECFGF_IP1 | ECFGF_IP2 |
@@ -231,7 +242,7 @@ void loongson3_init_secondary(void)
 		     cpu_logical_map(cpu) / loongson_sysconf.cores_per_package;
 }
 
-void loongson3_smp_finish(void)
+void loongson_smp_finish(void)
 {
 	local_irq_enable();
 	iocsr_write64(0, LOONGARCH_IOCSR_MBUF0);
@@ -240,7 +251,7 @@ void loongson3_smp_finish(void)
 
 #ifdef CONFIG_HOTPLUG_CPU
 
-int loongson3_cpu_disable(void)
+int loongson_cpu_disable(void)
 {
 	unsigned long flags;
 	unsigned int cpu = smp_processor_id();
@@ -262,7 +273,7 @@ int loongson3_cpu_disable(void)
 	return 0;
 }
 
-void loongson3_cpu_die(unsigned int cpu)
+void loongson_cpu_die(unsigned int cpu)
 {
 	while (per_cpu(cpu_state, cpu) != CPU_DEAD)
 		cpu_relax();
@@ -300,19 +311,19 @@ void play_dead(void)
  */
 #ifdef CONFIG_PM
 
-static int loongson3_ipi_suspend(void)
+static int loongson_ipi_suspend(void)
 {
 	return 0;
 }
 
-static void loongson3_ipi_resume(void)
+static void loongson_ipi_resume(void)
 {
 	iocsr_write32(0xffffffff, LOONGARCH_IOCSR_IPI_EN);
 }
 
-static struct syscore_ops loongson3_ipi_syscore_ops = {
-	.resume         = loongson3_ipi_resume,
-	.suspend        = loongson3_ipi_suspend,
+static struct syscore_ops loongson_ipi_syscore_ops = {
+	.resume         = loongson_ipi_resume,
+	.suspend        = loongson_ipi_suspend,
 };
 
 /*
@@ -321,7 +332,7 @@ static struct syscore_ops loongson3_ipi_syscore_ops = {
  */
 static int __init ipi_pm_init(void)
 {
-	register_syscore_ops(&loongson3_ipi_syscore_ops);
+	register_syscore_ops(&loongson_ipi_syscore_ops);
 	return 0;
 }
 
@@ -425,7 +436,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 {
 	init_new_context(current, &init_mm);
 	current_thread_info()->cpu = 0;
-	loongson3_prepare_cpus(max_cpus);
+	loongson_prepare_cpus(max_cpus);
 	set_cpu_sibling_map(0);
 	set_cpu_core_map(0);
 	calculate_cpu_foreign_map();
@@ -436,7 +447,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-	loongson3_boot_secondary(cpu, tidle);
+	loongson_boot_secondary(cpu, tidle);
 
 	/* Wait for CPU to start and be ready to sync counters */
 	if (!wait_for_completion_timeout(&cpu_starting,
@@ -465,7 +476,7 @@ asmlinkage void start_secondary(void)
 
 	cpu_probe();
 	constant_clockevent_init();
-	loongson3_init_secondary();
+	loongson_init_secondary();
 
 	set_cpu_sibling_map(cpu);
 	set_cpu_core_map(cpu);
@@ -487,11 +498,11 @@ asmlinkage void start_secondary(void)
 	complete(&cpu_running);
 
 	/*
-	 * irq will be enabled in loongson3_smp_finish(), enabling it too
+	 * irq will be enabled in loongson_smp_finish(), enabling it too
 	 * early is dangerous.
 	 */
 	WARN_ON_ONCE(!irqs_disabled());
-	loongson3_smp_finish();
+	loongson_smp_finish();
 
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c
index b206d9159205..4571c3c87cd4 100644
--- a/arch/loongarch/kernel/unwind_prologue.c
+++ b/arch/loongarch/kernel/unwind_prologue.c
@@ -43,7 +43,8 @@ static bool unwind_by_prologue(struct unwind_state *state)
 {
 	struct stack_info *info = &state->stack_info;
 	union loongarch_instruction *ip, *ip_end;
-	unsigned long frame_size = 0, frame_ra = -1;
+	long frame_ra = -1;
+	unsigned long frame_size = 0;
 	unsigned long size, offset, pc = state->pc;
 
 	if (state->sp >= info->end || state->sp < info->begin)
diff --git a/arch/loongarch/kernel/vdso.c b/arch/loongarch/kernel/vdso.c
index 8c9826062652..eaebd2e0f725 100644
--- a/arch/loongarch/kernel/vdso.c
+++ b/arch/loongarch/kernel/vdso.c
@@ -78,7 +78,7 @@ static unsigned long vdso_base(void)
 	unsigned long base = STACK_TOP;
 
 	if (current->flags & PF_RANDOMIZE) {
-		base += prandom_u32_max(VDSO_RANDOMIZE_SIZE);
+		base += get_random_u32_below(VDSO_RANDOMIZE_SIZE);
 		base = PAGE_ALIGN(base);
 	}
 
diff --git a/arch/loongarch/mm/tlbex.S b/arch/loongarch/mm/tlbex.S
index d8ee8fbc8c67..58781c6e4191 100644
--- a/arch/loongarch/mm/tlbex.S
+++ b/arch/loongarch/mm/tlbex.S
@@ -10,6 +10,8 @@
 #include <asm/regdef.h>
 #include <asm/stackframe.h>
 
+#define INVTLB_ADDR_GFALSE_AND_ASID	5
+
 #define PTRS_PER_PGD_BITS	(PAGE_SHIFT - 3)
 #define PTRS_PER_PUD_BITS	(PAGE_SHIFT - 3)
 #define PTRS_PER_PMD_BITS	(PAGE_SHIFT - 3)
@@ -136,13 +138,10 @@ tlb_huge_update_load:
 	ori		t0, ra, _PAGE_VALID
 	st.d		t0, t1, 0
 #endif
-	tlbsrch
-	addu16i.d	t1, zero, -(CSR_TLBIDX_EHINV >> 16)
-	addi.d		ra, t1, 0
-	csrxchg		ra, t1, LOONGARCH_CSR_TLBIDX
-	tlbwr
-
-	csrxchg		zero, t1, LOONGARCH_CSR_TLBIDX
+	csrrd		ra, LOONGARCH_CSR_ASID
+	csrrd		t1, LOONGARCH_CSR_BADV
+	andi		ra, ra, CSR_ASID_ASID
+	invtlb		INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
 
 	/*
 	 * A huge PTE describes an area the size of the
@@ -287,13 +286,11 @@ tlb_huge_update_store:
 	ori		t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED)
 	st.d		t0, t1, 0
 #endif
-	tlbsrch
-	addu16i.d	t1, zero, -(CSR_TLBIDX_EHINV >> 16)
-	addi.d		ra, t1, 0
-	csrxchg		ra, t1, LOONGARCH_CSR_TLBIDX
-	tlbwr
+	csrrd		ra, LOONGARCH_CSR_ASID
+	csrrd		t1, LOONGARCH_CSR_BADV
+	andi		ra, ra, CSR_ASID_ASID
+	invtlb		INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
 
-	csrxchg		zero, t1, LOONGARCH_CSR_TLBIDX
 	/*
 	 * A huge PTE describes an area the size of the
 	 * configured huge page size. This is twice the
@@ -436,6 +433,11 @@ tlb_huge_update_modify:
 	ori		t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED)
 	st.d		t0, t1, 0
 #endif
+	csrrd		ra, LOONGARCH_CSR_ASID
+	csrrd		t1, LOONGARCH_CSR_BADV
+	andi		ra, ra, CSR_ASID_ASID
+	invtlb		INVTLB_ADDR_GFALSE_AND_ASID, ra, t1
+
 	/*
 	 * A huge PTE describes an area the size of the
 	 * configured huge page size. This is twice the
@@ -466,7 +468,7 @@ tlb_huge_update_modify:
 	addu16i.d	t1, zero, (PS_HUGE_SIZE << (CSR_TLBIDX_PS_SHIFT - 16))
 	csrxchg		t1, t0, LOONGARCH_CSR_TLBIDX
 
-	tlbwr
+	tlbfill
 
 	/* Reset default page size */
 	addu16i.d	t0, zero, (CSR_TLBIDX_PS >> 16)