Re: [GIT PULL] RISC-V Patches for the 5.14 Merge Window, Part 1

From: Alex Ghiti
Date: Fri Jul 09 2021 - 15:58:16 EST

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Le 9/07/2021 à 16:53, Palmer Dabbelt a écrit :

The following changes since commit 8a4102a0cf07cc76a18f373f6b49485258cc6af4:

riscv: mm: Fix W+X mappings at boot (2021-06-01 21:15:09 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.14-mw0

for you to fetch changes up to 1958e5aef5098e28b7d6e6a2972649901ebecace:

riscv: xip: Fix duplicate included asm/pgtable.h (2021-07-06 16:17:40 -0700)

----------------------------------------------------------------
RISC-V Patches for the 5.14 Merge Window, Part 1

In addition to We have a handful of new features for 5.14:

* Support for transparent huge pages.
* Support for generic PCI resources mapping.
* Support for the mem= kernel parameter.
* Support for KFENCE.
* A handful of fixes to avoid W+X mappings in the kernel.
* Support for VMAP_STACK based overflow detection.
* An optimized copy_{to,from}_user.
----------------------------------------------------------------
There are some Kconfig merge conflicts. They should be pretty
straight-forward, but we do have a symbol out of order -- I thought I had a
script to check for that, but I guess it doesn't work. I just sent out a patch
to fix it up.

diff --cc arch/riscv/Kconfig
index 3590eb76000e,469a70bd8da6..d36f3c5029fd
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@@ -60,12 -61,11 +61,12 @@@ config RISC
select GENERIC_TIME_VSYSCALL if MMU && 64BIT
select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_AUDITSYSCALL
- select HAVE_ARCH_JUMP_LABEL
- select HAVE_ARCH_JUMP_LABEL_RELATIVE
+ select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
+ select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL
select HAVE_ARCH_KASAN if MMU && 64BIT
select HAVE_ARCH_KASAN_VMALLOC if MMU && 64BIT
+ select HAVE_ARCH_KFENCE if MMU && 64BIT
- select HAVE_ARCH_KGDB
+ select HAVE_ARCH_KGDB if !XIP_KERNEL
select HAVE_ARCH_KGDB_QXFER_PKT
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_SECCOMP_FILTER
@@@ -81,11 -80,9 +82,14 @@@
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_VDSO if MMU && 64BIT
select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_KPROBES
+ select HAVE_KPROBES_ON_FTRACE
+ select HAVE_KRETPROBES
+ select HAVE_KPROBES if !XIP_KERNEL
+ select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
+ select HAVE_KRETPROBES if !XIP_KERNEL
+ select HAVE_MOVE_PMD
+ select HAVE_MOVE_PUD
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
@@@ -108,7 -104,7 +112,8 @@@
select SYSCTL_EXCEPTION_TRACE
select THREAD_INFO_IN_TASK
select UACCESS_MEMCPY if !MMU
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU
+ select ZONE_DMA32 if 64BIT

config ARCH_MMAP_RND_BITS_MIN
default 18 if 64BIT
----------------------------------------------------------------
Akira Tsukamoto (1):
riscv: __asm_copy_to-from_user: Optimize unaligned memory access and pipeline stall

Alexandre Ghiti (6):
riscv: Remove CONFIG_PHYS_RAM_BASE_FIXED
riscv: Simplify xip and !xip kernel address conversion macros

@Palmer: As said in the thread of this patchset multiple times, those 2 patches should not be merged as it assumes that the base DRAM address is always 0x8000_0000 for all rv64 platforms: I don't think it is true, is it?

riscv: Introduce set_kernel_memory helper
riscv: Map the kernel with correct permissions the first time
riscv: Introduce structure that group all variables regarding kernel mapping
riscv: Fix PTDUMP output now BPF region moved back to module region

Bixuan Cui (1):
riscv: fix build error when CONFIG_SMP is disabled

Christoph Hellwig (1):
riscv: pass the mm_struct to __sbi_tlb_flush_range

Guo Ren (3):
riscv: Use global mappings for kernel pages
riscv: Cleanup unused functions
riscv: add ASID-based tlbflushing methods

Jeff Xie (1):
riscv: ptrace: add argn syntax

Jiapeng Chong (1):
riscv: xip: Fix duplicate included asm/pgtable.h

Jisheng Zhang (7):
riscv: mremap speedup - enable HAVE_MOVE_PUD and HAVE_MOVE_PMD
riscv: mm: Remove setup_zero_page()
riscv: Optimize switch_mm by passing "cpu" to flush_icache_deferred()
riscv: Turn has_fpu into a static key if FPU=y
riscv: kprobes: Remove redundant kprobe_step_ctx
riscv: Add __init section marker to some functions again
riscv: mm: init: Consolidate vars, functions

Kefeng Wang (5):
riscv: Move setup_bootmem into paging_init
riscv: mm: Drop redundant _sdata and _edata declaration
riscv: mm: Use better bitmap_zalloc()
riscv: Only initialize swiotlb when necessary
riscv: Add mem kernel parameter support

Liu Shixin (1):
riscv: Enable KFENCE for riscv64

Nanyong Sun (5):
riscv: mm: add _PAGE_LEAF macro
riscv: mm: make pmd_bad() check leaf condition
riscv: mm: add param stride for __sbi_tlb_flush_range
riscv: mm: add THP support on 64-bit
riscv: mm: fix build errors caused by mk_pmd()

Palmer Dabbelt (2):
RISC-V: Use asm-generic for {in,out}{bwlq}
Merge branch 'riscv-wx-mappings' into for-next

Randy Dunlap (1):
riscv: TRANSPARENT_HUGEPAGE: depends on MMU

Stanislaw Kardach (1):
riscv: enable generic PCI resource mapping

Tong Tiangen (1):
riscv: add VMAP_STACK overflow detection

Vitaly Wool (1):
riscv: fix typo in init.c

arch/riscv/Kconfig | 12 +-
arch/riscv/include/asm/asm-prototypes.h | 3 +
arch/riscv/include/asm/io.h | 13 --
arch/riscv/include/asm/kfence.h | 63 +++++++
arch/riscv/include/asm/kprobes.h | 7 -
arch/riscv/include/asm/mmu_context.h | 2 +
arch/riscv/include/asm/page.h | 81 +++++----
arch/riscv/include/asm/pci.h | 2 +
arch/riscv/include/asm/pgtable-64.h | 5 +-
arch/riscv/include/asm/pgtable-bits.h | 5 +
arch/riscv/include/asm/pgtable.h | 171 ++++++++++++++++++-
arch/riscv/include/asm/ptrace.h | 31 ++++
arch/riscv/include/asm/sections.h | 17 ++
arch/riscv/include/asm/set_memory.h | 24 ++-
arch/riscv/include/asm/switch_to.h | 11 +-
arch/riscv/include/asm/thread_info.h | 15 ++
arch/riscv/include/asm/tlbflush.h | 5 +
arch/riscv/kernel/asm-offsets.c | 2 +
arch/riscv/kernel/cpufeature.c | 6 +-
arch/riscv/kernel/entry.S | 108 ++++++++++++
arch/riscv/kernel/head.S | 4 +-
arch/riscv/kernel/kexec_relocate.S | 4 +-
arch/riscv/kernel/machine_kexec.c | 2 +-
arch/riscv/kernel/probes/kprobes.c | 40 +----
arch/riscv/kernel/process.c | 2 +-
arch/riscv/kernel/setup.c | 18 +-
arch/riscv/kernel/signal.c | 4 +-
arch/riscv/kernel/traps.c | 35 ++++
arch/riscv/kernel/vmlinux-xip.lds.S | 1 -
arch/riscv/kernel/vmlinux.lds.S | 2 +-
arch/riscv/lib/uaccess.S | 181 ++++++++++++++++----
arch/riscv/mm/context.c | 14 +-
arch/riscv/mm/fault.c | 11 +-
arch/riscv/mm/init.c | 283 +++++++++++++++-----------------
arch/riscv/mm/physaddr.c | 2 +-
arch/riscv/mm/ptdump.c | 6 +-
arch/riscv/mm/tlbflush.c | 69 ++++++--
37 files changed, 901 insertions(+), 360 deletions(-)
create mode 100644 arch/riscv/include/asm/kfence.h

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Next message: Fox Chen: "RE: [PATCH 5.10 0/6] 5.10.49-rc1 review"
Previous message: Randy Dunlap: "Re: [PATCH v1] fix vmwgfx compilation error due to a missing include"
In reply to: pr-tracker-bot: "Re: [GIT PULL] RISC-V Patches for the 5.14 Merge Window, Part 1"
Next in thread: Palmer Dabbelt: "Re: [GIT PULL] RISC-V Patches for the 5.14 Merge Window, Part 1"
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