[GIT PULL] RISC-V updates for v6.18-rc3

[GIT PULL] RISC-V updates for v6.18-rc3

[Paul Walmsley]

Linus,

The following changes since commit fe69107ec7d8b946ab413cfe118984dac8f1a0d8:

  Merge tag 'riscv-for-linux-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (2025-10-17 12:59:31 -1000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux tags/riscv-for-linus-6.18-rc3

for you to fetch changes up to b7776a802f2f80139f96530a489dd00fd7089eda:

  riscv: hwprobe: avoid uninitialized variable use in hwprobe_arch_id() (2025-10-18 09:36:36 -0600)


- Paul

----------------------------------------------------------------
RISC-V updates for v6.18-rc3

Several RISC-V fixes for v6.18-rc3:

- Close a race during boot between userspace vDSO usage and some
  late-initialized vDSO data

- Improve performance on systems with non-CPU-cache-coherent
  DMA-capable peripherals by enabling write combining on
  pgprot_dmacoherent() allocations

- Add human-readable detail for RISC-V IPI tracing

- Provide more information to zsmalloc on 64-bit RISC-V to improve
  allocation

- Silence useless boot messages about CPUs that have been disabled in
  DT

- Resolve some compiler and smatch warnings and remove a redundant macro

----------------------------------------------------------------
Anup Patel (2):
      RISC-V: Define pgprot_dmacoherent() for non-coherent devices
      RISC-V: Don't print details of CPUs disabled in DT

Jingwei Wang (1):
      riscv: hwprobe: Fix stale vDSO data for late-initialized keys at boot

Paul Walmsley (3):
      riscv: add a forward declaration for cpuinfo_op
      riscv: cpufeature: avoid uninitialized variable in has_thead_homogeneous_vlenb()
      riscv: hwprobe: avoid uninitialized variable use in hwprobe_arch_id()

Samuel Holland (3):
      riscv: Register IPI IRQs with unique names
      riscv: mm: Define MAX_POSSIBLE_PHYSMEM_BITS for zsmalloc
      riscv: Remove the PER_CPU_OFFSET_SHIFT macro

Sunil V L (1):
      ACPI: RIMT: Fix unused function warnings when CONFIG_IOMMU_API is disabled

 arch/riscv/include/asm/asm.h               |   8 +-
 arch/riscv/include/asm/cpufeature.h        |   2 +
 arch/riscv/include/asm/hwprobe.h           |   7 ++
 arch/riscv/include/asm/pgtable-64.h        |   2 +
 arch/riscv/include/asm/pgtable.h           |   2 +
 arch/riscv/include/asm/vdso/arch_data.h    |   6 ++
 arch/riscv/kernel/cpu.c                    |   4 +-
 arch/riscv/kernel/cpufeature.c             |   4 +-
 arch/riscv/kernel/smp.c                    |  24 +++---
 arch/riscv/kernel/sys_hwprobe.c            |  76 +++++++++++++++---
 arch/riscv/kernel/unaligned_access_speed.c |   9 ++-
 arch/riscv/kernel/vdso/hwprobe.c           |   2 +-
 drivers/acpi/riscv/rimt.c                  | 122 ++++++++++++++---------------
 13 files changed, 168 insertions(+), 100 deletions(-)


vmlinux size differences (from 6f3b6e91f720):

text  data  bss   dec   hex  filename                             
+140  +152    .  +292  +124  vmlinux.defconfig.gcc-15             
+144  +120    .  +264  +108  vmlinux.nosmp_defconfig.gcc-15       
 +76  +160    .  +236   +ec  vmlinux.rv32_defconfig.gcc-15        
+168   +88    .  +256  +100  vmlinux.rv32_nosmp_defconfig.gcc-15  
 +76   +16    .   +92   +5c  vmlinux.nommu_virt_defconfig.gcc-15  
+140  +152    .  +292  +124  vmlinux.defconfig.gcc-14             
+144  +120    .  +264  +108  vmlinux.nosmp_defconfig.gcc-14       
 +76  +160    .  +236   +ec  vmlinux.rv32_defconfig.gcc-14        
+168   +88    .  +256  +100  vmlinux.rv32_nosmp_defconfig.gcc-14  
 +76   +16    .   +92   +5c  vmlinux.nommu_virt_defconfig.gcc-14  
+356   +84    .  +440  +1b8  vmlinux.defconfig.clang-20           
+340  +116    .  +456  +1c8  vmlinux.nosmp_defconfig.clang-20     
+400   +80    .  +480  +1e0  vmlinux.rv32_defconfig.clang-20      
+376  +112    .  +488  +1e8  vmlinux.rv32_nosmp_defconfig.clang-20
 +48   +80    .  +128   +80  vmlinux.nommu_virt_defconfig.clang-20
+328  +116    .  +444  +1bc  vmlinux.defconfig.clang-19           
+344   +76    .  +420  +1a4  vmlinux.nosmp_defconfig.clang-19     
+424   +84    .  +508  +1fc  vmlinux.rv32_defconfig.clang-19      
+396   +76    .  +472  +1d8  vmlinux.rv32_nosmp_defconfig.clang-19
 +60   +16    .   +76   +4c  vmlinux.nommu_virt_defconfig.clang-19
-100   +80    .   -20   -14  vmlinux.allnoconfig.gcc-14           
   x     x    x     x     x  vmlinux.allmodconfig.gcc-14

Re: [GIT PULL] RISC-V updates for v6.18-rc3

[pr-tracker-bot]

The pull request you sent on Sat, 25 Oct 2025 01:04:21 -0600 (MDT):

> git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux tags/riscv-for-linus-6.18-rc3

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/9bb956508c9d94935bedba4f13901fb2b7468e91

Thank you!

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