Merge tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for the new "riscv,isa-extensions" and "riscv,isa-base"
   device tree interfaces for probing extensions

 - Support for userspace access to the performance counters

 - Support for more instructions in kprobes

 - Crash kernels can be allocated above 4GiB

 - Support for KCFI

 - Support for ELFs in !MMU configurations

 - ARCH_KMALLOC_MINALIGN has been reduced to 8

 - mmap() defaults to sv48-sized addresses, with longer addresses hidden
   behind a hint (similar to Arm and Intel)

 - Also various fixes and cleanups

* tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
  lib/Kconfig.debug: Restrict DEBUG_INFO_SPLIT for RISC-V
  riscv: support PREEMPT_DYNAMIC with static keys
  riscv: Move create_tmp_mapping() to init sections
  riscv: Mark KASAN tmp* page tables variables as static
  riscv: mm: use bitmap_zero() API
  riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B
  riscv: remove redundant mv instructions
  RISC-V: mm: Document mmap changes
  RISC-V: mm: Update pgtable comment documentation
  RISC-V: mm: Add tests for RISC-V mm
  RISC-V: mm: Restrict address space for sv39,sv48,sv57
  riscv: enable DMA_BOUNCE_UNALIGNED_KMALLOC for !dma_coherent
  riscv: allow kmalloc() caches aligned to the smallest value
  riscv: support the elf-fdpic binfmt loader
  binfmt_elf_fdpic: support 64-bit systems
  riscv: Allow CONFIG_CFI_CLANG to be selected
  riscv/purgatory: Disable CFI
  riscv: Add CFI error handling
  riscv: Add ftrace_stub_graph
  riscv: Add types to indirectly called assembly functions
  ...

1 files changed, 35 insertions, 0 deletions

diff --git a/tools/testing/selftests/riscv/mm/testcases/mmap_default.c b/tools/testing/selftests/riscv/mm/testcases/mmap_default.c
new file mode 100644
index 000000000000..d1accb91b726
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/testcases/mmap_default.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <sys/mman.h>
+#include <testcases/mmap_test.h>
+
+#include "../../kselftest_harness.h"
+
+TEST(default_rlimit)
+{
+// Only works on 64 bit
+#if __riscv_xlen == 64
+	struct addresses mmap_addresses;
+
+	EXPECT_EQ(TOP_DOWN, memory_layout());
+
+	do_mmaps(&mmap_addresses);
+
+	EXPECT_NE(MAP_FAILED, mmap_addresses.no_hint);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_37_addr);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_38_addr);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_46_addr);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_47_addr);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_55_addr);
+	EXPECT_NE(MAP_FAILED, mmap_addresses.on_56_addr);
+
+	EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.no_hint);
+	EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_37_addr);
+	EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_38_addr);
+	EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_46_addr);
+	EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_47_addr);
+	EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_55_addr);
+	EXPECT_GT(1UL << 56, (unsigned long)mmap_addresses.on_56_addr);
+#endif
+}
+
+TEST_HARNESS_MAIN