[GIT PULL] RISC-V Patches for the 5.6 Merge Window, Part 1

[Palmer Dabbelt <palmerdabbelt@google.com>]

The following changes since commit def9d2780727cec3313ed3522d0123158d87224d:

  Linux 5.5-rc7 (2020-01-19 16:02:49 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.6-mw0

for you to fetch changes up to 61ffb9d27860769c5d5596f6e4cca3cded2755e0:

  riscv: dts: Add DT support for SiFive FU540 GPIO driver (2020-01-29 14:58:08 +0000)

----------------------------------------------------------------
RISC-V Patches for the 5.6 Merge Window, Part 1

This tag contains a handful of patches that I'd like to target for this merge
window:

* Support for kasan.
* 32-bit physical addresses on rv32i-based systems.
* Support for CONFIG_DEBUG_VIRTUAL
* DT entry for the FU540 GPIO controller, which has recently had a device
  driver merged.

These boot a buildroot-based system on QEMU's virt board for me.

----------------------------------------------------------------
Nick Hu (3):
      kasan: No KASAN's memmove check if archs don't have it.
      riscv: Add KASAN support
      kasan: Add riscv to KASAN documentation.

Olof Johansson (1):
      riscv: keep 32-bit kernel to 32-bit phys_addr_t

Yash Shah (1):
      riscv: dts: Add DT support for SiFive FU540 GPIO driver

Zong Li (1):
      riscv: mm: add support for CONFIG_DEBUG_VIRTUAL

 Documentation/dev-tools/kasan.rst                  |   4 +-
 arch/riscv/Kconfig                                 |   4 +-
 arch/riscv/boot/dts/sifive/fu540-c000.dtsi         |  15 ++-
 .../riscv/boot/dts/sifive/hifive-unleashed-a00.dts |   4 +
 arch/riscv/include/asm/kasan.h                     |  27 ++++++
 arch/riscv/include/asm/page.h                      |  16 +++-
 arch/riscv/include/asm/pgtable-64.h                |   5 +
 arch/riscv/include/asm/string.h                    |   9 ++
 arch/riscv/kernel/head.S                           |   3 +
 arch/riscv/kernel/riscv_ksyms.c                    |   2 +
 arch/riscv/kernel/setup.c                          |   5 +
 arch/riscv/kernel/vmlinux.lds.S                    |   1 +
 arch/riscv/lib/memcpy.S                            |   5 +-
 arch/riscv/lib/memset.S                            |   5 +-
 arch/riscv/mm/Makefile                             |   8 ++
 arch/riscv/mm/kasan_init.c                         | 104 +++++++++++++++++++++
 arch/riscv/mm/physaddr.c                           |  37 ++++++++
 mm/kasan/common.c                                  |   2 +
 18 files changed, 245 insertions(+), 11 deletions(-)
 create mode 100644 arch/riscv/include/asm/kasan.h
 create mode 100644 arch/riscv/mm/kasan_init.c
 create mode 100644 arch/riscv/mm/physaddr.c