kernel.git/arch/parisc/Kconfig, branch linux-4.5.y

parisc: Fix and enable seccomp filter support

2016-04-20T06:45:05Z

commit 910cd32e552ea09caa89cdbe328e468979b030dd upstream. The seccomp filter support requires careful handling of task registers. This includes reloading of the return value (%r28) and proper syscall exit if secure_computing() returned -1. Additionally we need to sign-extend the syscall number from signed 32bit to signed 64bit in do_syscall_trace_enter() since the ptrace interface only allows storing 32bit values in compat mode. Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman

dma-mapping: always provide the dma_map_ops based implementation

2016-01-21T01:09:18Z

Move the generic implementation to now that all architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol now that everyone supports them. [valentinrothberg@gmail.com: remove leftovers in Kconfig] Signed-off-by: Christoph Hellwig Cc: "David S. Miller" Cc: Aurelien Jacquiot Cc: Chris Metcalf Cc: David Howells Cc: Geert Uytterhoeven Cc: Haavard Skinnemoen Cc: Hans-Christian Egtvedt Cc: Helge Deller Cc: James Hogan Cc: Jesper Nilsson Cc: Koichi Yasutake Cc: Ley Foon Tan Cc: Mark Salter Cc: Mikael Starvik Cc: Steven Miao Cc: Vineet Gupta Cc: Christian Borntraeger Cc: Joerg Roedel Cc: Sebastian Ott Signed-off-by: Valentin Rothberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

parisc: convert to dma_map_ops

2016-01-21T01:09:18Z

Signed-off-by: Christoph Hellwig Tested-by: Helge Deller Acked-by: Helge Deller Cc: Christian Borntraeger Cc: Joerg Roedel Cc: Sebastian Ott Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Kconfig: remove HAVE_LATENCYTOP_SUPPORT

2016-01-16T19:17:23Z

As illustrated by commit a3afe70b83fd ("[S390] latencytop s390 support."), HAVE_LATENCYTOP_SUPPORT is defined by an architecture to advertise an implementation of save_stack_trace_tsk. However, as of 9212ddb5eada ("stacktrace: provide save_stack_trace_tsk() weak alias") a dummy implementation is provided if STACKTRACE=y. Given that LATENCYTOP already depends on STACKTRACE_SUPPORT and selects STACKTRACE, we can remove HAVE_LATENCYTOP_SUPPORT altogether. Signed-off-by: Will Deacon Acked-by: Heiko Carstens Cc: Vineet Gupta Cc: Russell King Cc: James Hogan Cc: Michal Simek Cc: Helge Deller Acked-by: Michael Ellerman Cc: "David S. Miller" Cc: Guan Xuetao Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

parisc: Add Huge Page and HUGETLBFS support

2015-11-22T11:23:10Z

This patch adds huge page support to allow userspace to allocate huge pages and to use hugetlbfs filesystem on 32- and 64-bit Linux kernels. A later patch will add kernel support to map kernel text and data on huge pages. The only requirement is, that the kernel needs to be compiled for a PA8X00 CPU (PA2.0 architecture). Older PA1.X CPUs do not support variable page sizes. 64bit Kernels are compiled for PA2.0 by default. Technically on parisc multiple physical huge pages may be needed to emulate standard 2MB huge pages. Signed-off-by: Helge Deller

parisc: expose number of page table levels on Kconfig level

2015-04-14T23:49:02Z

We would want to use number of page table level to define mm_struct. Let's expose it as CONFIG_PGTABLE_LEVELS. Signed-off-by: Kirill A. Shutemov Cc: "James E.J. Bottomley" Cc: Helge Deller Tested-by: Guenter Roeck Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

parisc: hpux - Drop support for HP-UX binaries

2015-02-16T21:35:01Z

This patch series drops the support for 32bit HP-UX binaries. The HP-UX compat layer has always been incomplete and it's unlikely that someone will ever implement it. Furthermore those two commits which enhance the compatibility of Linux on parisc to other architectures: f5a408d: parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc 1f25df2: parisc: Reduce SIGRTMIN from 37 to 32 to behave like other Linux architectures basically make it impossible to implement the HP-UX support correctly. Signed-off-by: Helge Deller

parisc: Wire up seccomp, getrandom and memfd_create syscalls

2014-08-27T12:39:56Z

With secure computing we only support the SECCOMP_MODE_STRICT mode for now. Signed-off-by: Helge Deller

parisc: ftrace: Remove check of obsolete variable function_trace_stop

2014-07-18T17:57:05Z

Nothing sets function_trace_stop to disable function tracing anymore. Remove the check for it in the arch code. Link: http://lkml.kernel.org/r/53B08317.7010501@gmx.de Cc: Kyle McMartin Acked-by: Helge Deller Signed-off-by: Steven Rostedt

Merge branch 'parisc-3.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

2014-05-20T05:35:28Z

Pull parisc fixes from Helge Deller: "There are two patches in here: The first patch greatly improves latency and corrects the memory ordering in our light-weight atomic locking syscall. The second patch ratelimits printing of userspace segfaults in the same way as it's done on other platforms. This fixes a possible DOS on parisc since it prevents the syslog to grow too fast. For example, when the debian acl2 package was built on our debian buildd servers, this package produced lots of gigabytes in syslog in very short time and thus filled our harddisks, which then turned the server nearly completely unaccessible and unresponsive" * 'parisc-3.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Improve LWS-CAS performance parisc: ratelimit userspace segfault printing