diff --git a/Documentation/arch/riscv/uabi.rst b/Documentation/arch/riscv/uabi.rst
index 243e40062e34..0c5299e00762 100644
--- a/Documentation/arch/riscv/uabi.rst
+++ b/Documentation/arch/riscv/uabi.rst
@@ -7,7 +7,9 @@ ISA string ordering in /proc/cpuinfo
 ------------------------------------
 
 The canonical order of ISA extension names in the ISA string is defined in
-chapter 27 of the unprivileged specification.
+Chapter 27 of the RISC-V Instruction Set Manual Volume I Unprivileged ISA
+(Document Version 20191213).
+
 The specification uses vague wording, such as should, when it comes to ordering,
 so for our purposes the following rules apply:
 
diff --git a/arch/riscv/Kconfig.errata b/arch/riscv/Kconfig.errata
index aca9b0cfcfec..3c945d086c7d 100644
--- a/arch/riscv/Kconfig.errata
+++ b/arch/riscv/Kconfig.errata
@@ -84,6 +84,7 @@ config ERRATA_STARFIVE_JH7100
 	select DMA_GLOBAL_POOL
 	select RISCV_DMA_NONCOHERENT
 	select RISCV_NONSTANDARD_CACHE_OPS
+	select CACHEMAINT_FOR_DMA
 	select SIFIVE_CCACHE
 	default n
 	help
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h
index 36bba6720c26..11c9886c3b70 100644
--- a/arch/riscv/include/asm/uaccess.h
+++ b/arch/riscv/include/asm/uaccess.h
@@ -97,13 +97,23 @@ static inline unsigned long __untagged_addr_remote(struct mm_struct *mm, unsigne
  */
 
 #ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+/*
+ * Use a temporary variable for the output of the asm goto to avoid a
+ * triggering an LLVM assertion due to sign extending the output when
+ * it is used in later function calls:
+ * https://github.com/llvm/llvm-project/issues/143795
+ */
 #define __get_user_asm(insn, x, ptr, label)			\
+do {								\
+	u64 __tmp;						\
 	asm_goto_output(					\
 		"1:\n"						\
 		"	" insn " %0, %1\n"			\
 		_ASM_EXTABLE_UACCESS_ERR(1b, %l2, %0)		\
-		: "=&r" (x)					\
-		: "m" (*(ptr)) : : label)
+		: "=&r" (__tmp)					\
+		: "m" (*(ptr)) : : label);			\
+	(x) = (__typeof__(x))(unsigned long)__tmp;		\
+} while (0)
 #else /* !CONFIG_CC_HAS_ASM_GOTO_OUTPUT */
 #define __get_user_asm(insn, x, ptr, label)			\
 do {								\
diff --git a/arch/riscv/kernel/suspend.c b/arch/riscv/kernel/suspend.c
index 24b3f57d467f..aff93090c4ef 100644
--- a/arch/riscv/kernel/suspend.c
+++ b/arch/riscv/kernel/suspend.c
@@ -51,10 +51,11 @@ void suspend_restore_csrs(struct suspend_context *context)
 
 #ifdef CONFIG_MMU
 	if (riscv_has_extension_unlikely(RISCV_ISA_EXT_SSTC)) {
-		csr_write(CSR_STIMECMP, context->stimecmp);
 #if __riscv_xlen < 64
+		csr_write(CSR_STIMECMP, ULONG_MAX);
 		csr_write(CSR_STIMECMPH, context->stimecmph);
 #endif
+		csr_write(CSR_STIMECMP, context->stimecmp);
 	}
 
 	csr_write(CSR_SATP, context->satp);
diff --git a/arch/riscv/kvm/vcpu_timer.c b/arch/riscv/kvm/vcpu_timer.c
index 85a7262115e1..f36247e4c783 100644
--- a/arch/riscv/kvm/vcpu_timer.c
+++ b/arch/riscv/kvm/vcpu_timer.c
@@ -72,8 +72,9 @@ static int kvm_riscv_vcpu_timer_cancel(struct kvm_vcpu_timer *t)
 static int kvm_riscv_vcpu_update_vstimecmp(struct kvm_vcpu *vcpu, u64 ncycles)
 {
 #if defined(CONFIG_32BIT)
-	ncsr_write(CSR_VSTIMECMP, ncycles & 0xFFFFFFFF);
+	ncsr_write(CSR_VSTIMECMP,  ULONG_MAX);
 	ncsr_write(CSR_VSTIMECMPH, ncycles >> 32);
+	ncsr_write(CSR_VSTIMECMP, (u32)ncycles);
 #else
 	ncsr_write(CSR_VSTIMECMP, ncycles);
 #endif
@@ -307,8 +308,9 @@ void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
 		return;
 
 #if defined(CONFIG_32BIT)
-	ncsr_write(CSR_VSTIMECMP, (u32)t->next_cycles);
+	ncsr_write(CSR_VSTIMECMP, ULONG_MAX);
 	ncsr_write(CSR_VSTIMECMPH, (u32)(t->next_cycles >> 32));
+	ncsr_write(CSR_VSTIMECMP, (u32)(t->next_cycles));
 #else
 	ncsr_write(CSR_VSTIMECMP, t->next_cycles);
 #endif
diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index 4d7cf338824a..cfc4d83c42c0 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -50,8 +50,9 @@ static int riscv_clock_next_event(unsigned long delta,
 
 	if (static_branch_likely(&riscv_sstc_available)) {
 #if defined(CONFIG_32BIT)
-		csr_write(CSR_STIMECMP, next_tval & 0xFFFFFFFF);
+		csr_write(CSR_STIMECMP, ULONG_MAX);
 		csr_write(CSR_STIMECMPH, next_tval >> 32);
+		csr_write(CSR_STIMECMP, next_tval & 0xFFFFFFFF);
 #else
 		csr_write(CSR_STIMECMP, next_tval);
 #endif
diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig
index 340a1ff7e92b..2a8ae79a11af 100644
--- a/drivers/soc/renesas/Kconfig
+++ b/drivers/soc/renesas/Kconfig
@@ -445,6 +445,7 @@ config ARCH_R9A07G043
 	depends on RISCV_SBI
 	select ARCH_RZG2L
 	select AX45MP_L2_CACHE
+	select CACHEMAINT_FOR_DMA
 	select DMA_GLOBAL_POOL
 	select ERRATA_ANDES
 	select ERRATA_ANDES_CMO