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89261c5702
include:
- Syscall tables & definitions for unistd.h are now generated by
scripts, providing greater consistency with other architectures &
making it easier to add new syscalls.
- Support for building kernels with no floating point support, upon
which any userland attempting to use floating point instructions will
receive a SIGILL. Mostly useful to shrink the kernel & as preparation
for nanoMIPS support which does not yet include FP.
- MIPS SIMD Architecture (MSA) vector register context is now exposed
by ptrace via a new NT_MIPS_MSA regset.
- ASIDs are now stored as 64b values even for MIPS32 kernels, expanding
the ASID version field sufficiently that we don't need to worry about
overflow & avoiding rare issues with reused ASIDs that have been
observed in the wild.
- The branch delay slot "emulation" page is now mapped without write
permission for the user, preventing its use as a nice location for
attacks to execute malicious code from.
- Support for ioremap_prot(), primarily to allow gdb or other
ptrace users the ability to view their tracee's memory using the same
cache coherency attribute.
- Optimizations to more cpu_has_* macros, allowing more to be
compile-time constant where possible.
- Enable building the whole kernel with UBSAN instrumentation.
- Enable building the kernel with link-time dead code & data
elimination.
Platform specific changes include:
- The Boston board gains a workaround for DMA prefetching issues with
the EG20T Platform Controller Hub that it uses.
- Cleanups to Cavium Octeon code removing about 20k lines of redundant
code, mostly unused or duplicate register definitions in headers.
- defconfig updates for the DECstation machines, including new
defconfigs for r4k & 64b machines.
- Further work on Loongson 3 support.
- DMA fixes for SiByte machines.
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Merge tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"Here's the main MIPS pull for Linux 4.21. Core architecture changes
include:
- Syscall tables & definitions for unistd.h are now generated by
scripts, providing greater consistency with other architectures &
making it easier to add new syscalls.
- Support for building kernels with no floating point support, upon
which any userland attempting to use floating point instructions
will receive a SIGILL. Mostly useful to shrink the kernel & as
preparation for nanoMIPS support which does not yet include FP.
- MIPS SIMD Architecture (MSA) vector register context is now exposed
by ptrace via a new NT_MIPS_MSA regset.
- ASIDs are now stored as 64b values even for MIPS32 kernels,
expanding the ASID version field sufficiently that we don't need to
worry about overflow & avoiding rare issues with reused ASIDs that
have been observed in the wild.
- The branch delay slot "emulation" page is now mapped without write
permission for the user, preventing its use as a nice location for
attacks to execute malicious code from.
- Support for ioremap_prot(), primarily to allow gdb or other ptrace
users the ability to view their tracee's memory using the same
cache coherency attribute.
- Optimizations to more cpu_has_* macros, allowing more to be
compile-time constant where possible.
- Enable building the whole kernel with UBSAN instrumentation.
- Enable building the kernel with link-time dead code & data
elimination.
Platform specific changes include:
- The Boston board gains a workaround for DMA prefetching issues with
the EG20T Platform Controller Hub that it uses.
- Cleanups to Cavium Octeon code removing about 20k lines of
redundant code, mostly unused or duplicate register definitions in
headers.
- defconfig updates for the DECstation machines, including new
defconfigs for r4k & 64b machines.
- Further work on Loongson 3 support.
- DMA fixes for SiByte machines"
* tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (95 commits)
MIPS: math-emu: Write-protect delay slot emulation pages
MIPS: Remove struct mm_context_t fp_mode_switching field
mips: generate uapi header and system call table files
mips: add system call table generation support
mips: remove syscall table entries
mips: add +1 to __NR_syscalls in uapi header
mips: rename scall64-64.S to scall64-n64.S
mips: remove unused macros
mips: add __NR_syscalls along with __NR_Linux_syscalls
MIPS: Expand MIPS32 ASIDs to 64 bits
MIPS: OCTEON: delete redundant register definitions
MIPS: OCTEON: cvmx_gmxx_inf_mode: use oldest forward compatible definition
MIPS: OCTEON: cvmx_mio_fus_dat3: use oldest forward compatible definition
MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
MIPS: OCTEON: octeon-usb: use common gpio_bit definition
MIPS: OCTEON: enable all OCTEON drivers in defconfig
mips: annotate implicit fall throughs
MIPS: Hardcode cpu_has_mips* where target ISA allows
MIPS: MT: Remove norps command line parameter
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
...
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|---|---|---|
| .. | ||
| generic | ||
| ar7_defconfig | ||
| ath25_defconfig | ||
| ath79_defconfig | ||
| bcm47xx_defconfig | ||
| bcm63xx_defconfig | ||
| bigsur_defconfig | ||
| bmips_be_defconfig | ||
| bmips_stb_defconfig | ||
| capcella_defconfig | ||
| cavium_octeon_defconfig | ||
| ci20_defconfig | ||
| cobalt_defconfig | ||
| db1xxx_defconfig | ||
| decstation_64_defconfig | ||
| decstation_defconfig | ||
| decstation_r4k_defconfig | ||
| e55_defconfig | ||
| fuloong2e_defconfig | ||
| gcw0_defconfig | ||
| generic_defconfig | ||
| gpr_defconfig | ||
| ip22_defconfig | ||
| ip27_defconfig | ||
| ip28_defconfig | ||
| ip32_defconfig | ||
| jazz_defconfig | ||
| jmr3927_defconfig | ||
| lasat_defconfig | ||
| lemote2f_defconfig | ||
| loongson1b_defconfig | ||
| loongson1c_defconfig | ||
| loongson3_defconfig | ||
| malta_defconfig | ||
| malta_kvm_defconfig | ||
| malta_kvm_guest_defconfig | ||
| malta_qemu_32r6_defconfig | ||
| maltaaprp_defconfig | ||
| maltasmvp_defconfig | ||
| maltasmvp_eva_defconfig | ||
| maltaup_defconfig | ||
| maltaup_xpa_defconfig | ||
| markeins_defconfig | ||
| mips_paravirt_defconfig | ||
| mpc30x_defconfig | ||
| msp71xx_defconfig | ||
| mtx1_defconfig | ||
| nlm_xlp_defconfig | ||
| nlm_xlr_defconfig | ||
| omega2p_defconfig | ||
| pic32mzda_defconfig | ||
| pistachio_defconfig | ||
| pnx8335_stb225_defconfig | ||
| qi_lb60_defconfig | ||
| rb532_defconfig | ||
| rbtx49xx_defconfig | ||
| rm200_defconfig | ||
| rt305x_defconfig | ||
| sb1250_swarm_defconfig | ||
| tb0219_defconfig | ||
| tb0226_defconfig | ||
| tb0287_defconfig | ||
| vocore2_defconfig | ||
| workpad_defconfig | ||
| xway_defconfig | ||