Merge tag 'riscv-for-linus-6.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley

 - Replacement of __ASSEMBLY__ with __ASSEMBLER__ in header files (other
   architectures have already merged this type of cleanup)

 - The introduction of ioremap_wc() for RISC-V

 - Cleanup of the RISC-V kprobes code to use mostly-extant macros rather
   than open code

 - A RISC-V kprobes unit test

 - An architecture-specific endianness swap macro set implementation,
   leveraging some dedicated RISC-V instructions for this purpose if
   they are available

 - The ability to identity and communicate to userspace the presence
   of a MIPS P8700-specific ISA extension, and to leverage its
   MIPS-specific PAUSE implementation in cpu_relax()

 - Several other miscellaneous cleanups

* tag 'riscv-for-linus-6.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (39 commits)
  riscv: errata: Fix the PAUSE Opcode for MIPS P8700
  riscv: hwprobe: Document MIPS xmipsexectl vendor extension
  riscv: hwprobe: Add MIPS vendor extension probing
  riscv: Add xmipsexectl instructions
  riscv: Add xmipsexectl as a vendor extension
  dt-bindings: riscv: Add xmipsexectl ISA extension description
  riscv: cpufeature: add validation for zfa, zfh and zfhmin
  perf: riscv: skip empty batches in counter start
  selftests: riscv: Add README for RISC-V KSelfTest
  riscv: sbi: Switch to new sys-off handler API
  riscv: Move vendor errata definitions to new header
  RISC-V: ACPI: enable parsing the BGRT table
  riscv: Enable ARCH_HAVE_NMI_SAFE_CMPXCHG
  riscv: pi: use 'targets' instead of extra-y in Makefile
  riscv: introduce asm/swab.h
  riscv: mmap(): use unsigned offset type in riscv_sys_mmap
  drivers/perf: riscv: Remove redundant ternary operators
  riscv: mm: Use mmu-type from FDT to limit SATP mode
  riscv: mm: Return intended SATP mode for noXlvl options
  riscv: kprobes: Remove duplication of RV_EXTRACT_ITYPE_IMM
  ...

3 files changed, 29 insertions, 5 deletions

diff --git a/tools/arch/riscv/include/asm/csr.h b/tools/arch/riscv/include/asm/csr.h
index 0dfc09254f99..56d7367ee344 100644
--- a/tools/arch/riscv/include/asm/csr.h
+++ b/tools/arch/riscv/include/asm/csr.h
@@ -468,13 +468,13 @@
 #define IE_TIE		(_AC(0x1, UL) << RV_IRQ_TIMER)
 #define IE_EIE		(_AC(0x1, UL) << RV_IRQ_EXT)
 
-#ifdef __ASSEMBLY__
+#ifdef __ASSEMBLER__
 #define __ASM_STR(x)    x
 #else
 #define __ASM_STR(x)    #x
 #endif
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #define csr_swap(csr, val)					\
 ({								\
@@ -536,6 +536,6 @@
 			      : "memory");			\
 })
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 #endif /* _ASM_RISCV_CSR_H */
diff --git a/tools/arch/riscv/include/asm/vdso/processor.h b/tools/arch/riscv/include/asm/vdso/processor.h
index 662aca039848..0665b117f30f 100644
--- a/tools/arch/riscv/include/asm/vdso/processor.h
+++ b/tools/arch/riscv/include/asm/vdso/processor.h
@@ -2,7 +2,7 @@
 #ifndef __ASM_VDSO_PROCESSOR_H
 #define __ASM_VDSO_PROCESSOR_H
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #include <asm-generic/barrier.h>
 
@@ -27,6 +27,6 @@ static inline void cpu_relax(void)
 	barrier();
 }
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 #endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/tools/testing/selftests/riscv/README b/tools/testing/selftests/riscv/README
new file mode 100644
index 000000000000..443da395da68
--- /dev/null
+++ b/tools/testing/selftests/riscv/README
@@ -0,0 +1,24 @@
+KSelfTest RISC-V
+================
+
+- These tests are riscv specific and so not built or run but just skipped
+  completely when env-variable ARCH is found to be different than 'riscv'.
+
+- Holding true the above, RISC-V KSFT tests can be run within the
+  KSelfTest framework using standard Linux top-level-makefile targets:
+
+      $ make TARGETS=riscv kselftest-clean
+      $ make TARGETS=riscv kselftest
+
+      or
+
+      $ make -C tools/testing/selftests TARGETS=riscv \
+		INSTALL_PATH=<your-installation-path> install
+
+      or, alternatively, only specific riscv/ subtargets can be picked:
+
+      $ make -C tools/testing/selftests TARGETS=riscv RISCV_SUBTARGETS="mm vector" \
+		INSTALL_PATH=<your-installation-path> install
+
+   Further details on building and running KSFT can be found in:
+     Documentation/dev-tools/kselftest.rst