[GIT PULL] RISC-V Fixes for 6.0-rc6

[Palmer Dabbelt]

The following changes since commit 20e0fbab16003ae23a9e86a64bcb93e3121587ca:

  perf: RISC-V: fix access beyond allocated array (2022-09-08 13:50:25 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.0-rc6

for you to fetch changes up to 5b5f6556027ccb04c731988923c051fd2b2bad18:

  RISC-V: Avoid coupling the T-Head CMOs and Zicbom (2022-09-16 02:59:06 -0700)

----------------------------------------------------------------
RISC-V Fixes for 6.0-rc6

* A handful of build fixes for the T-Head errata, including some
  functional issues the compilers found.
* A fix to avoid bad page permission initialization, which manifests on
  systems that may load modules early.
* A fix for a nasty sigreturn bug.

----------------------------------------------------------------
I have one merge conflict as a result of a treewide fix, I'm getting some odd
output from just showing the merge (it's showing some of the fix too), but I
think the merge itself is OK.  My fix is to keep the write lock

-       mmap_read_lock(mm);
++      mmap_write_lock(mm);
 +      ret = walk_page_range_novma(mm, start, end, &pageattr_ops, NULL,
 +                                  &masks);
-       mmap_read_unlock(mm);
++      mmap_write_unlock(mm);

----------------------------------------------------------------
Al Viro (1):
      riscv: fix a nasty sigreturn bug...

Heiko Stuebner (1):
      riscv: make t-head erratas depend on MMU

Palmer Dabbelt (2):
      RISC-V: Clean up the Zicbom block size probing
      RISC-V: Avoid coupling the T-Head CMOs and Zicbom

Randy Dunlap (1):
      riscv: fix RISCV_ISA_SVPBMT kconfig dependency warning

Vladimir Isaev (1):
      riscv: Fix permissions for all mm's during mm init

 arch/riscv/Kconfig                  |  1 +
 arch/riscv/Kconfig.erratas          |  4 +--
 arch/riscv/errata/thead/errata.c    |  1 +
 arch/riscv/include/asm/cacheflush.h |  5 +++
 arch/riscv/include/asm/set_memory.h | 20 +++---------
 arch/riscv/kernel/setup.c           | 13 +-------
 arch/riscv/kernel/signal.c          |  2 ++
 arch/riscv/mm/dma-noncoherent.c     | 23 ++++++++------
 arch/riscv/mm/init.c                | 29 ++++++++++++++---
 arch/riscv/mm/pageattr.c            | 62 ++++++++++++++++++++++++++++++++-----
 10 files changed, 107 insertions(+), 53 deletions(-)