[GIT PULL] RISC-V Patches for the 6.6 Merge Window, Part 2 (try 2)
From: Palmer Dabbelt
Date: Sat Sep 09 2023 - 12:25:42 EST
merged tag 'riscv-for-linus-6.6-mw1'
The following changes since commit e0152e7481c6c63764d6ea8ee41af5cf9dfac5e9:
Merge tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (2023-09-01 08:09:48 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.6-mw2-2
for you to fetch changes up to c6a906cce61a8015b622707f9c12003f90673399:
soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met (2023-09-08 11:25:29 -0700)
----------------------------------------------------------------
RISC-V Patches for the 6.6 Merge Window, Part 2 (try 2)
* The kernel now dynamically probes for misaligned access speed, as
opposed to relying on a table of known implementations.
* Support for non-coherent devices on systems using the Andes AX45MP
core, including the RZ/Five SoCs.
* Support for the V extension in ptrace(), again.
* Support for KASLR.
* Support for the BPF prog pack allocator in RISC-V.
* A handful of bug fixes and cleanups.
----------------------------------------------------------------
None of these are super critical so no big deal if it's too late, but I do feel
pretty bad that Prabhakar's been pushing on the DMA stuff for a long time and
figured it'd be better to send this out even if it's late.
The diffstat looks good this time and nobody's mentioned any issues (at least
that I can see) so I think this one is looking better, but apologies in
advance if something else has gone off the rails. The BPF docs merge conflict
is also gone, so I just have the internal one in libstub for KASLR. I think I
got that correct, but here's the blurb from yesterday:
I resolved the libstub conflict as part of mergeing in the patch set. The
actual conflict also looks pretty straight-forward: we refactored some KASLR
handling out to shared code, but there was also a new argument added. I
resolved it when picking up the patch series, but after talking to some of the
Arm folks I'm not quite sure that was the right way to go. So it won't show up
when actually merging, but figured I'd say something anyway as end up doing
that sort of "fix a conflict when merging a patch set" from time to time.
----------------------------------------------------------------
Alexandre Ghiti (5):
riscv: Introduce virtual kernel mapping KASLR
riscv: Dump out kernel offset information on panic
arm64: libstub: Move KASLR handling functions to kaslr.c
libstub: Fix compilation warning for rv32
riscv: libstub: Implement KASLR by using generic functions
Andy Chiu (1):
RISC-V: Add ptrace support for vectors
Arnd Bergmann (2):
riscv: dma-mapping: only invalidate after DMA, not flush
riscv: dma-mapping: skip invalidation before bidirectional DMA
Evan Green (2):
RISC-V: Probe for unaligned access speed
RISC-V: alternative: Remove feature_probe_func
Lad Prabhakar (11):
riscv: dma-mapping: switch over to generic implementation
riscv: asm: vendorid_list: Add Andes Technology to the vendors list
riscv: errata: Add Andes alternative ports
riscv: mm: dma-noncoherent: nonstandard cache operations support
dt-bindings: cache: andestech,ax45mp-cache: Add DT binding documentation for L2 cache controller
cache: Add L2 cache management for Andes AX45MP RISC-V core
soc: renesas: Kconfig: Select the required configs for RZ/Five SoC
riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled
riscv: Kconfig.errata: Drop dependency for MMU in ERRATA_ANDES_CMO config
riscv: Kconfig.errata: Add dependency for RISCV_SBI in ERRATA_ANDES config
soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met
Palmer Dabbelt (6):
Merge patch series "RISC-V: Probe for misaligned access speed"
Merge patch series "riscv: dma-mapping: unify support for cache flushes"
Merge patch series "Add non-coherent DMA support for AX45MP"
Merge patch "RISC-V: Add ptrace support for vectors"
Merge patch series "riscv: Introduce KASLR"
Merge patch series "bpf, riscv: use BPF prog pack allocator in BPF JIT"
Puranjay Mohan (4):
bpf: make bpf_prog_pack allocator portable
riscv: extend patch_text_nosync() for multiple pages
riscv: implement a memset like function for text
bpf, riscv: use prog pack allocator in the BPF JIT
.../bindings/cache/andestech,ax45mp-cache.yaml | 81 ++++++++
Documentation/riscv/hwprobe.rst | 11 +-
MAINTAINERS | 7 +
arch/arm64/include/asm/efi.h | 2 +
arch/riscv/Kconfig | 28 ++-
arch/riscv/Kconfig.errata | 21 ++
arch/riscv/errata/Makefile | 1 +
arch/riscv/errata/andes/Makefile | 1 +
arch/riscv/errata/andes/errata.c | 66 +++++++
arch/riscv/errata/thead/errata.c | 8 -
arch/riscv/include/asm/alternative.h | 8 +-
arch/riscv/include/asm/cpufeature.h | 2 +
arch/riscv/include/asm/dma-noncoherent.h | 28 +++
arch/riscv/include/asm/efi.h | 2 +
arch/riscv/include/asm/errata_list.h | 5 +
arch/riscv/include/asm/page.h | 3 +
arch/riscv/include/asm/patch.h | 1 +
arch/riscv/include/asm/vendorid_list.h | 1 +
arch/riscv/include/uapi/asm/ptrace.h | 13 +-
arch/riscv/kernel/Makefile | 1 +
arch/riscv/kernel/alternative.c | 24 +--
arch/riscv/kernel/copy-unaligned.S | 71 +++++++
arch/riscv/kernel/copy-unaligned.h | 13 ++
arch/riscv/kernel/cpufeature.c | 104 ++++++++++
arch/riscv/kernel/image-vars.h | 1 +
arch/riscv/kernel/patch.c | 114 ++++++++++-
arch/riscv/kernel/pi/Makefile | 2 +-
arch/riscv/kernel/pi/cmdline_early.c | 13 ++
arch/riscv/kernel/pi/fdt_early.c | 30 +++
arch/riscv/kernel/ptrace.c | 79 ++++++++
arch/riscv/kernel/setup.c | 25 +++
arch/riscv/kernel/smpboot.c | 3 +-
arch/riscv/mm/dma-noncoherent.c | 103 +++++++++-
arch/riscv/mm/init.c | 36 +++-
arch/riscv/mm/pmem.c | 13 ++
arch/riscv/net/bpf_jit.h | 3 +
arch/riscv/net/bpf_jit_comp64.c | 60 ++++--
arch/riscv/net/bpf_jit_core.c | 106 ++++++++--
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/cache/Kconfig | 11 ++
drivers/cache/Makefile | 3 +
drivers/cache/ax45mp_cache.c | 213 +++++++++++++++++++++
drivers/firmware/efi/libstub/Makefile | 4 +-
drivers/firmware/efi/libstub/arm64-stub.c | 117 ++---------
drivers/firmware/efi/libstub/efistub.h | 8 +
drivers/firmware/efi/libstub/kaslr.c | 159 +++++++++++++++
drivers/firmware/efi/libstub/riscv-stub.c | 33 ++--
drivers/soc/renesas/Kconfig | 5 +
include/uapi/linux/elf.h | 2 +
kernel/bpf/core.c | 8 +-
51 files changed, 1440 insertions(+), 216 deletions(-)
create mode 100644 Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
create mode 100644 arch/riscv/errata/andes/Makefile
create mode 100644 arch/riscv/errata/andes/errata.c
create mode 100644 arch/riscv/include/asm/dma-noncoherent.h
create mode 100644 arch/riscv/kernel/copy-unaligned.S
create mode 100644 arch/riscv/kernel/copy-unaligned.h
create mode 100644 arch/riscv/kernel/pi/fdt_early.c
create mode 100644 drivers/cache/Kconfig
create mode 100644 drivers/cache/Makefile
create mode 100644 drivers/cache/ax45mp_cache.c
create mode 100644 drivers/firmware/efi/libstub/kaslr.c