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2022-01-27MIPS: Fix build error due to PTR used in more placesThomas Bogendoerfer1-1/+1
Use PTR_WD instead of PTR to avoid clashes with other parts. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-03-10mips: syscalls: switch to generic syscalltbl.shMasahiro Yamada1-2/+1
Many architectures duplicate similar shell scripts. This commit converts mips to use scripts/syscalltbl.sh. This also unifies syscall_table_32_o32.h and syscall_table_64_o32.h into syscall_table_o32.h. The offset parameters are unneeded here; __SYSCALL(nr, entry) is defined as 'PTR entry', so the parameter 'nr' is not used in the first place. With this commit, syscall tables and generated files are straight mapped, which makes things easier to understand. syscall_n32.tbl --> syscall_table_n32.h syscall_n64.tbl --> syscall_table_n64.h syscall_o32.tbl --> syscall_table_o32.h Then, the abi parameters are also unneeded. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2019-07-30mips: remove nargs from __SYSCALLFiroz Khan1-1/+1
The __SYSCALL macro's arguments are system call number, system call entry name and number of arguments for the system call. Argument- nargs in __SYSCALL(nr, entry, nargs) is neither calculated nor used anywhere. So it would be better to keep the implementaion as __SYSCALL(nr, entry). This will unifies the implementation with some other architetures too. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: y2038@lists.linaro.org Cc: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: arnd@arndb.de Cc: deepa.kernel@gmail.com Cc: marcin.juszkiewicz@linaro.org
2018-12-14mips: generate uapi header and system call table filesFiroz Khan1-334/+3
System call table generation script must be run to gener- ate unistd_(nr_)n64/n32/o32.h and syscall_table_32_o32/ 64_n64/64_n32/64-o32.h files. This patch will have changes which will invokes the script. This patch will generate unistd_(nr_)n64/n32/o32.h and syscall_table_32_o32/64_n64/64-n32/64-o32.h files by the syscall table generation script invoked by parisc/Make- file and the generated files against the removed files must be identical. The generated uapi header file will be included in uapi/- asm/unistd.h and generated system call table header file will be included by kernel/scall32-o32/64-n64/64-n32/- 64-o32.Sfile. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: y2038@lists.linaro.org Cc: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: arnd@arndb.de Cc: deepa.kernel@gmail.com Cc: marcin.juszkiewicz@linaro.org
2018-12-14mips: add +1 to __NR_syscalls in uapi headerFiroz Khan1-2/+2
All other architectures are hold a value for __NR_syscalls will be equal to the last system call number +1. But in mips architecture, __NR_syscalls hold the value equal to total number of system exits in the architecture. One of the patch in this patch series will genarate uapi header files. In order to make the implementation common across all architect- ures, add +1 to __NR_syscalls, which will be equal to the last system call number +1. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: y2038@lists.linaro.org Cc: linux-kernel@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: arnd@arndb.de Cc: deepa.kernel@gmail.com Cc: marcin.juszkiewicz@linaro.org
2018-06-19MIPS: Wire up io_pgetevents syscallPaul Burton1-0/+1
Wire up the io_pgetevents syscall that was introduced by commit 7a074e96dee6 ("aio: implement io_pgetevents"). Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19593/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org
2018-06-19MIPS: Wire up the restartable sequences (rseq) syscallPaul Burton1-0/+1
Wire up the restartable sequences (rseq) syscall for MIPS. This was introduced by commit d7822b1e24f2 ("rseq: Introduce restartable sequences system call") & MIPS now supports the prerequisites. Signed-off-by: Paul Burton <paul.burton@mips.com> Reviewed-by: James Hogan <jhogan@kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/19525/ Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org
2017-06-28MIPS: Save static registers before sysmipsJames Hogan1-1/+1
The MIPS sysmips system call handler may return directly from the MIPS_ATOMIC_SET case (mips_atomic_set()) to syscall_exit. This path restores the static (callee saved) registers, however they won't have been saved on entry to the system call. Use the save_static_function() macro to create a __sys_sysmips wrapper function which saves the static registers before calling sys_sysmips, so that the correct static register state is restored by syscall_exit. Fixes: f1e39a4a616c ("MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16149/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-03-08MIPS: Wire up statx system callJames Hogan1-0/+1
Wire up the statx system call for MIPS, which was introduced in commit a528d35e8bfc ("statx: Add a system call to make enhanced file info available"). Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15387/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-10-14MIPS: Wire up new pkey_{mprotect,alloc,free} syscallsRalf Baechle1-0/+3
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14380/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-28KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspaceDavid Howells1-1/+1
MIPS64 needs to use compat_sys_keyctl for 32-bit userspace rather than calling sys_keyctl. The latter will work in a lot of cases, thereby hiding the issue. Reported-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: David Howells <dhowells@redhat.com> cc: stable@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: linux-security-module@vger.kernel.org Cc: keyrings@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13832/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13MIPS: scall: Handle seccomp filters which redirect syscallsMatt Redfearn1-5/+9
Commit d218af78492a ("MIPS: scall: Always run the seccomp syscall filters") modified the syscall code to always call the seccomp filters, but missed the case where a filter may redirect the syscall, as revealed by the seccomp_bpf self test. The syscall path now restores the syscall from the stack after the filter rather than saving it locally. Syscall number checking and syscall function table lookup is done after the filter may have run such that redirected syscalls are also checked, and executed. The regular path of syscall number checking and pointer lookup is also made more consistent between ABIs with scall64-64.S being the reference. With this patch in place, the seccomp_bpf self test now passes TRACE_syscall.syscall_redirected and TRACE_syscall.syscall_dropped on all MIPS ABIs. Fixes: d218af78492a ("MIPS: scall: Always run the seccomp syscall filters") Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Eric B Munson <emunson@akamai.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mips@linux-mips.org Cc: IMG-MIPSLinuxKerneldevelopers@imgtec.com Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12916/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-04-03MIPS: Wire up preadv2 and pwrite2 syscalls.Ralf Baechle1-0/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-02-05MIPS: Wire up copy_file_range syscall.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-09mips: add entry for new mlock2 syscallEric B Munson1-0/+1
A previous commit introduced the new mlock2 syscall, add entries for the MIPS architecture. Signed-off-by: Eric B Munson <emunson@akamai.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-04MIPS: scall: Always run the seccomp syscall filtersMarkos Chandras1-14/+5
The MIPS syscall handler code used to return -ENOSYS on invalid syscalls. Whilst this is expected, it caused problems for seccomp filters because the said filters never had the change to run since the code returned -ENOSYS before triggering them. This caused problems on the chromium testsuite for filters looking for invalid syscalls. This has now changed and the seccomp filters are always run even if the syscall is invalid. We return -ENOSYS once we return from the seccomp filters. Moreover, similar codepaths have been merged in the process which simplifies somewhat the overall syscall code. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11236/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-30MIPS: Wire up userfaultfd and membarrier syscalls.Ralf Baechle1-0/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-16MIPS: Fix seccomp syscall argument for MIPS64Markos Chandras1-1/+1
Commit 4c21b8fd8f14 ("MIPS: seccomp: Handle indirect system calls (o32)") fixed indirect system calls on O32 but it also introduced a bug for MIPS64 where it erroneously modified the v0 (syscall) register with the assumption that the sycall offset hasn't been taken into consideration. This breaks seccomp on MIPS64 n64 and n32 ABIs. We fix this by replacing the addition with a move instruction. Fixes: 4c21b8fd8f14 ("MIPS: seccomp: Handle indirect system calls (o32)") Cc: <stable@vger.kernel.org> # 3.15+ Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10951/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-01-13MIPS: Wire up execveat(2).Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-10-27MIPS: Wire up bpf syscall.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-26MIPS: Wire up new syscalls getrandom and memfd_create.Ralf Baechle1-0/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-07Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds1-6/+6
Pull MIPS updates from Ralf Baechle: "This is the main pull request for 3.17. It contains: - misc Cavium Octeon, BCM47xx, BCM63xx and Alchemy updates - MIPS ptrace updates and cleanups - various fixes that will also go to -stable - a number of cleanups and small non-critical fixes. - NUMA support for the Loongson 3. - more support for MSA - support for MAAR - various FP enhancements and fixes" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (139 commits) MIPS: jz4740: remove unnecessary null test before debugfs_remove MIPS: Octeon: remove unnecessary null test before debugfs_remove_recursive MIPS: ZBOOT: implement stack protector in compressed boot phase MIPS: mipsreg: remove duplicate MIPS_CONF4_FTLBSETS_SHIFT MIPS: Bonito64: remove a duplicate define MIPS: Malta: initialise MAARs MIPS: Initialise MAARs MIPS: detect presence of MAARs MIPS: define MAAR register accessors & bits MIPS: mark MSA experimental MIPS: Don't build MSA support unless it can be used MIPS: consistently clear MSA flags when starting & copying threads MIPS: 16 byte align MSA vector context MIPS: disable preemption whilst initialising MSA MIPS: ensure MSA gets disabled during boot MIPS: fix read_msa_* & write_msa_* functions on non-MSA toolchains MIPS: fix MSA context for tasks which don't use FP first MIPS: init upper 64b of vector registers when MSA is first used MIPS: save/disable MSA in lose_fpu MIPS: preserve scalar FP CSR when switching vector context ...
2014-08-02Merge branch '3.16-fixes' into mips-for-linux-nextRalf Baechle1-1/+1
2014-08-01MIPS: N32: Use compat getsockopt syscallSorin Dumitru1-1/+1
The IP_PKTOPTIONS sockopt puts control messages in option_values, these need to be handled differently in the compat case. This is already done through the MSG_CMSG_COMPAT flag, we just need to use compat_sys_getsockopt which sets that flag. Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7115/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30MIPS: Add numa api supportHuacai Chen1-5/+5
Enable sys_mbind()/sys_get_mempolicy()/sys_set_mempolicy() for O32, N32, and N64 ABIs. By the way, O32/N32 should use the compat version of sys_migrate_pages()/sys_move_pages(), so fix that. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/7186/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-18MIPS: add seccomp syscallKees Cook1-0/+1
Wires up the new seccomp syscall. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Oleg Nesterov <oleg@redhat.com>
2014-05-13MIPS: Wire up renameat2 syscall.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: seccomp: Handle indirect system calls (o32)Markos Chandras1-0/+1
When userland uses syscall() to perform an indirect system call the actually system call that needs to be checked by the filter is on the first argument. The kernel code needs to handle this case by looking at the original syscall number in v0 and if it's NR_syscall, then it needs to examine the first argument to identify the real system call that will be executed. Similarly, we need to 'virtually' shift the syscall() arguments so the syscall_get_arguments() function can fetch the correct arguments for the indirect system call. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6404/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26MIPS: kernel: scalls: Skip the syscall if denied by the seccomp filterMarkos Chandras1-1/+3
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6399/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04MIPS: Wire up sched_setattr/sched_getattr syscallsJames Hogan1-0/+2
Wire up for MIPS the new sched_setattr and sched_getattr system calls added in commit d50dde5a10f3 (sched: Add new scheduler syscalls to support an extended scheduling parameters ABI) merged in v3.14-rc1. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6502/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: compat: Mark N32 syscall table as data object.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Cleanup flags in syscall flags handlers.Ralf Baechle1-1/+1
This will simplify further modifications. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-03get rid of compat_sys_semctl() and friends in case of ARCH_WANT_OLD_COMPAT_IPCAl Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-03convert sendfile{,64} to COMPAT_SYSCALL_DEFINEAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-02Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds1-5/+5
Pull MIPS updates from Ralf Baechle: o Add basic support for the Mediatek/Ralink Wireless SoC family. o The Qualcomm Atheros platform is extended by support for the new QCA955X SoC series as well as a bunch of patches that get the code ready for OF support. o Lantiq and BCM47XX platform have a few improvements and bug fixes. o MIPS has sent a few patches that get the kernel ready for the upcoming microMIPS support. o The rest of the series is made up of small bug fixes and cleanups that relate to various parts of the MIPS code. The biggy in there is a whitespace cleanup. After I was sent another set of whitespace cleanup patches I decided it was the time to clean the whitespace "issues" for once and and that touches many files below arch/mips/. Fix up silly conflicts, mostly due to whitespace cleanups. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits) MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h MIPS: remove broken conditional inside vpe loader code MIPS: SMTC: fix implicit declaration of set_vi_handler MIPS: early_printk: drop __init annotations MIPS: Probe for and report hardware virtualization support. MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board MIPS: ath79: add USB controller registration code for the QCA955X SoCs MIPS: ath79: add PCI controller registration code for the QCA955X SoCs MIPS: ath79: add WMAC registration code for the QCA955X SoCs MIPS: ath79: register UART for the QCA955X SoCs MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear} MIPS: ath79: add GPIO setup code for the QCA955X SoCs MIPS: ath79: add IRQ handling code for the QCA955X SoCs MIPS: ath79: add clock setup code for the QCA955X SoCs MIPS: ath79: add SoC detection code for the QCA955X SoCs MIPS: ath79: add early printk support for the QCA955X SoCs MIPS: ath79: fix WMAC IRQ resource assignment mips: reserve elfcorehdr mips: Make sure kernel memory is in iomem MIPS: ath79: use dynamically allocated USB platform devices ...
2013-02-03mips: switch to generic sys_fork() and sys_clone()Al Viro1-2/+2
we still need the wrappers to store callee-saved registers in pt_regs, but once that done we can jump to kernel/fork.c variants. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: don't bother with compat_sys_futex() wrappersAl Viro1-1/+1
... it's COMPAT_SYSCALL_DEFINE now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic compat rt_sigaction()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic compat sched_rr_get_interval()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic compat rt_sigqueueinfo()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic compat rt_sigpending()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic compat rt_sigprocmask()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03switch mips to generic rt_sigsuspend(), make it unconditionalAl Viro1-1/+1
mips was the last architecture not using the generic variant. Both native and compat variants switched to generic, which is made unconditional now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03mips: switch to generic sigaltstackAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-5/+5
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-28MIPS: Wire up finit_module syscall.Ralf Baechle1-0/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-14Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds1-6/+0
Pull MIPS updates from Ralf Baechle: "The MIPS bits for 3.8. This also includes a bunch fixes that were sitting in the linux-mips.org git tree for a long time. This pull request contains updates to several OCTEON drivers and the board support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B, updates to the SSB bus support, MIPS kexec code and adds support for kdump. When pulling this, there are two expected merge conflicts in include/linux/bcma/bcma_driver_chipcommon.h which are trivial to resolve, just remove the conflict markers and keep both alternatives." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits) MIPS: PMC-Sierra Yosemite: Remove support. VIDEO: Newport Fix console crashes MIPS: wrppmc: Fix build of PCI code. MIPS: IP22/IP28: Fix build of EISA code. MIPS: RB532: Fix build of prom code. MIPS: PowerTV: Fix build. MIPS: IP27: Correct fucked grammar in ops-bridge.c MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled MIPS: Fix potencial corruption MIPS: Fix for warning from FPU emulation code MIPS: Handle COP3 Unusable exception as COP1X for FP emulation MIPS: Fix poweroff failure when HOTPLUG_CPU configured. MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y MIPS: Remove unused smvp.h MIPS/EDAC: Improve OCTEON EDAC support. MIPS: OCTEON: Add definitions for OCTEON memory contoller registers. MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian. MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree. MIPS: Remove usage of CEVT_R4K_LIB config option. ...
2012-12-12Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signalLinus Torvalds1-1/+1
Pull big execve/kernel_thread/fork unification series from Al Viro: "All architectures are converted to new model. Quite a bit of that stuff is actually shared with architecture trees; in such cases it's literally shared branch pulled by both, not a cherry-pick. A lot of ugliness and black magic is gone (-3KLoC total in this one): - kernel_thread()/kernel_execve()/sys_execve() redesign. We don't do syscalls from kernel anymore for either kernel_thread() or kernel_execve(): kernel_thread() is essentially clone(2) with callback run before we return to userland, the callbacks either never return or do successful do_execve() before returning. kernel_execve() is a wrapper for do_execve() - it doesn't need to do transition to user mode anymore. As a result kernel_thread() and kernel_execve() are arch-independent now - they live in kernel/fork.c and fs/exec.c resp. sys_execve() is also in fs/exec.c and it's completely architecture-independent. - daemonize() is gone, along with its parts in fs/*.c - struct pt_regs * is no longer passed to do_fork/copy_process/ copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump. - sys_fork()/sys_vfork()/sys_clone() unified; some architectures still need wrappers (ones with callee-saved registers not saved in pt_regs on syscall entry), but the main part of those suckers is in kernel/fork.c now." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits) do_coredump(): get rid of pt_regs argument print_fatal_signal(): get rid of pt_regs argument ptrace_signal(): get rid of unused arguments get rid of ptrace_signal_deliver() arguments new helper: signal_pt_regs() unify default ptrace_signal_deliver flagday: kill pt_regs argument of do_fork() death to idle_regs() don't pass regs to copy_process() flagday: don't pass regs to copy_thread() bfin: switch to generic vfork, get rid of pointless wrappers xtensa: switch to generic clone() openrisc: switch to use of generic fork and clone unicore32: switch to generic clone(2) score: switch to generic fork/vfork/clone c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone() take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h mn10300: switch to generic fork/vfork/clone h8300: switch to generic fork/vfork/clone tile: switch to generic clone() ... Conflicts: arch/microblaze/include/asm/Kbuild
2012-12-05MIPS: N32: Fix signalfd4 syscall entry pointRalf Baechle1-1/+1
This needs to use the compat entry point or it's going to fail on big endian systems. Noticed by Al Viro. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-04MIPS: N32: Fix preadv(2) and pwritev(2) entry points.Ralf Baechle1-2/+2
By using the native syscall entry point the kernel was also expecting 64-bit iovec structures. This is broken since ddd9e91b71072b8ebe89311c3a44b077defa1756 [preadv/ pwritev: MIPS: Add preadv(2) and pwritev(2) syscalls.] which originally added these two syscalls. I walked through piles of code, including libc and couldn't find anything that would have worked around the issue so this change the API to what it should always have been. Noticed and patch suggested by Al Viro. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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