linux/arch/tile/Kconfig, branch v4.1-rc4

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2015-04-17T20:03:05Z

Pull arch/tile updates from Chris Metcalf: "These are mostly nohz_full changes, plus a smattering of minor fixes (notably a couple for ftrace)" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: nohz: warn if nohz_full uses hypervisor shared cores tile: ftrace: fix function_graph tracer issues tile: map data region shadow of kernel as R/W tile: support CONTEXT_TRACKING and thus NOHZ_FULL tile: support arch_irq_work_raise arch: tile: fix null pointer dereference on pt_regs pointer tile/elf: reorganize notify_exec() tile: use si_int instead of si_ptr for compat_siginfo

tile: support CONTEXT_TRACKING and thus NOHZ_FULL

2015-04-17T18:01:10Z

Add the TIF_NOHZ flag appropriately. Add call to user_exit() on entry to do_work_pending() and on entry to syscalls via do_syscall_trace_enter(), and also the top of do_syscall_trace_exit() just because it's done in x86. Add call to user_enter() at the bottom of do_work_pending() once we have no more work to do before returning to userspace. Wrap all the trap code in exception_enter() / exception_exit(). Signed-off-by: Chris Metcalf Acked-by: Frederic Weisbecker

tile: expose number of page table levels

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 Acked-by: Chris Metcalf Tested-by: Guenter Roeck Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

tilegx: Enable ARCH_SUPPORTS_ATOMIC_RMW

2014-10-02T14:19:33Z

Signed-off-by: Chris Metcalf

kexec: remove CONFIG_KEXEC dependency on crypto

2014-08-29T23:28:16Z

New system call depends on crypto. As it did not have a separate config option, CONFIG_KEXEC was modified to select CRYPTO and CRYPTO_SHA256. But now previous patch introduced a new config option for new syscall. So CONFIG_KEXEC does not require crypto. Remove that dependency. Signed-off-by: Vivek Goyal Cc: Eric Biederman Cc: H. Peter Anvin Cc: Shaun Ruffell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kexec: load and relocate purgatory at kernel load time

2014-08-08T22:57:32Z

Load purgatory code in RAM and relocate it based on the location. Relocation code has been inspired by module relocation code and purgatory relocation code in kexec-tools. Also compute the checksums of loaded kexec segments and store them in purgatory. Arch independent code provides this functionality so that arch dependent bootloaders can make use of it. Helper functions are provided to get/set symbol values in purgatory which are used by bootloaders later to set things like stack and entry point of second kernel etc. Signed-off-by: Vivek Goyal Cc: Borislav Petkov Cc: Michael Kerrisk Cc: Yinghai Lu Cc: Eric Biederman Cc: H. Peter Anvin Cc: Matthew Garrett Cc: Greg Kroah-Hartman Cc: Dave Young Cc: WANG Chao Cc: Baoquan He Cc: Andy Lutomirski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

tile: ftrace: Remove check of obsolete variable function_trace_stop

2014-07-18T17:57:03Z

Nothing sets function_trace_stop to disable function tracing anymore. Remove the check for it in the arch code. Cc: Chris Metcalf Acked-by: Zhigang Lu Signed-off-by: Steven Rostedt

tile: Use SPARSE_IRQ

2014-05-16T12:05:21Z

Get rid of the private allocator and switch over to sparse IRQs. Signed-off-by: Thomas Gleixner Reviewed-by: Grant Likely Cc: Tony Luck Cc: Peter Zijlstra Acked-by: Chris Metcalf Link: http://lkml.kernel.org/r/20140507154338.423715783@linutronix.de Signed-off-by: Thomas Gleixner

Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP

2014-04-07T23:36:11Z

If the renamed symbol is defined lib/iomap.c implements ioport_map and ioport_unmap and currently (nearly) all platforms define the port accessor functions outb/inb and friend unconditionally. So HAS_IOPORT_MAP is the better name for this. Consequently NO_IOPORT is renamed to NO_IOPORT_MAP. The motivation for this change is to reintroduce a symbol HAS_IOPORT that signals if outb/int et al are available. I will address that at least one merge window later though to keep surprises to a minimum and catch new introductions of (HAS|NO)_IOPORT. The changes in this commit were done using: $ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/' Signed-off-by: Uwe Kleine-König Acked-by: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

tile/perf: Support perf_events on tilegx and tilepro

2014-03-07T16:19:48Z

Add perf support for tile architecture. Signed-off-by: Zhigang Lu Signed-off-by: Chris Metcalf