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2012-10-25xtensa: switch to generic sys_execve()Max Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-25xtensa: switch to generic kernel_execve()Max Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-25xtensa: switch to generic kernel_thread()Max Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-25xtensa: reset windowbase/windowstart when cloning the VMChris Zankel
When we copy a user thread with CLONE_VM, we also have to reset windowbase and windowstart to start a pristine stack frame. Otherwise, overflows can happen using the address 0 as the stack pointer. Also add a special case for vfork, which continues on the parent stack until it calls execve. Because this could be a call8, we need to spill the stack pointer of the previus frame (if still 'live' in the register file). Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-25xtensa: use physical addresses for bus addressesChris Zankel
Define virt_to_bus and bus_to_virt as virt_to_phys, and phys_to_virt, respectively. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-25xtensa: allow multi-inclusion for uapi/unistd.hChris Zankel
Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-19xtensa: add missing system calls to the syscall tableChris Zankel
Add the following system calls to the syscall table: fallocate sendmmsg umount2 syncfs epoll_create1 inotify_init1 signalfd4 dup3 pipe2 timerfd_create timerfd_settime timerfd_gettime eventfd2 preadv pwritev fanotify_init fanotify_mark process_vm_readv process_vm_writev name_to_handle_at open_by_handle_at sync_file_range perf_event_open rt_tgsigqueueinfo clock_adjtime prlimit64 kcmp Note that we have to use the 'sys_sync_file_range2' version, so that the 64-bit arguments are aligned correctly to the argument registers. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-19xtensa: minor compiler warning fixChris Zankel
Fix two compiler warnings complaining about truncating a value on a 64-bit host, and about declaring an unused variable that is only used for a specific configuration. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: Use Kbuild infrastructure to handle asm-generic headersMax Filippov
Use Kbuild infrastructure to handle the asm-generic headers and remove the wrapper headers that call them. This only affects headers that do nothing but include the generic equivalent. It does not touch any header that does a little more. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15UAPI: (Scripted) Disintegrate arch/xtensa/include/asmDavid Howells
UAPI: (Scripted) Disintegrate arch/xtensa/include/asm Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: fix unaligned usermode accessMax Filippov
- correct use of .config #define name; CONFIG_UNALIGNED_USER ---> CONFIG_XTENSA_UNALIGNED_USER Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Pete Delaney <piet@tensilica.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: reorganize SR referencingMax Filippov
- reference SRs by names where possible, not by numbers; - get rid of __stringify around SR names where possible; - remove unneeded SR names from asm/regs.h; - add SREG_ prefix to remaining SR names; Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: fix boot parameters parsingMax Filippov
Boot parameter tags with handlers are ignored like this: [ 0.000000] Ignoring tag 0x00001003 [ 0.000000] Ignoring tag 0x00001001 [ 0.000000] Ignoring tag 0x00001004 because neither tagtable entries nor tag handlers appear in the vmlinux. Fix tagtable definition attributes so that tag entries are not dropped. Fix end of memory bank calculation in parse_tag_mem: it is intended to round down to page size, but instead did something strange leading to hang right after boot. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: fix missing return in do_page_fault for SIGBUS caseMarc Gauthier
Signed-off-by: Marc Gauthier <marc@tensilica.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: copy_thread with CLONE_VM must not copy live parent AR windowsMarc Gauthier
When doing a fork (new VM), the new task has a mirror image of the parent's stack, so keeps the same live register windows etc. However when doing a clone with CLONE_VM, keeping the same VM (eg. when creating a new thread), the child starts afresh on a new stack -- it cannot share any part of the parent stack. It especially cannot have the same live AR windows as the parent, otherwise it will overwrite the parent stack on overflow, likely causing corruption. (and so it did...) Effectively, the register windows need to be spilled. Turns out it's much easier to simply not copy parent register windows when CLONE_VM is set. Signed-off-by: Marc Gauthier <marc@tensilica.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: fix memmove(), bcopy(), and memcpy().Chris Zankel
- fix memmove to correctly handle overlapping src and dst; - fix memcpy loop ending conditions from signed '<=' to '!='; - modify bcopy to call memmove; Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: ISS: fix rs_put_charMax Filippov
ISS serial console prints garbage instead of symbols printed via rs_put_char. gcc optimizes away putting prined symbol into memory buffer because there's no evidence that the buffer is used afterwards. Make rs_put_char and rs_write use simc_write that has explicit wmb. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-15xtensa: ISS: fix specific simcallsMax Filippov
Simcalls that take memory buffer definitely need wmb or rmb to make sure gcc doesn't optimize away code that fills the buffer. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-14Merge branch 'modules-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module signing support from Rusty Russell: "module signing is the highlight, but it's an all-over David Howells frenzy..." Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG. * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits) X.509: Fix indefinite length element skip error handling X.509: Convert some printk calls to pr_devel asymmetric keys: fix printk format warning MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking MODSIGN: Make mrproper should remove generated files. MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs MODSIGN: Use the same digest for the autogen key sig as for the module sig MODSIGN: Sign modules during the build process MODSIGN: Provide a script for generating a key ID from an X.509 cert MODSIGN: Implement module signature checking MODSIGN: Provide module signing public keys to the kernel MODSIGN: Automatically generate module signing keys if missing MODSIGN: Provide Kconfig options MODSIGN: Provide gitignore and make clean rules for extra files MODSIGN: Add FIPS policy module: signature checking hook X.509: Add a crypto key parser for binary (DER) X.509 certificates MPILIB: Provide a function to read raw data into an MPI X.509: Add an ASN.1 decoder X.509: Add simple ASN.1 grammar compiler ...
2012-10-12vfs: define struct filename and have getname() return itJeff Layton
getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull pile 2 of execve and kernel_thread unification work from Al Viro: "Stuff in there: kernel_thread/kernel_execve/sys_execve conversions for several more architectures plus assorted signal fixes and cleanups. There'll be more (in particular, real fixes for the alpha do_notify_resume() irq mess)..." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (43 commits) alpha: don't open-code trace_report_syscall_{enter,exit} Uninclude linux/freezer.h m32r: trim masks avr32: trim masks tile: don't bother with SIGTRAP in setup_frame microblaze: don't bother with SIGTRAP in setup_rt_frame() mn10300: don't bother with SIGTRAP in setup_frame() frv: no need to raise SIGTRAP in setup_frame() x86: get rid of duplicate code in case of CONFIG_VM86 unicore32: remove pointless test h8300: trim _TIF_WORK_MASK parisc: decide whether to go to slow path (tracesys) based on thread flags parisc: don't bother looping in do_signal() parisc: fix double restarts bury the rest of TIF_IRET sanitize tsk_is_polling() bury _TIF_RESTORE_SIGMASK unicore32: unobfuscate _TIF_WORK_MASK mips: NOTIFY_RESUME is not needed in TIF masks mips: merge the identical "return from syscall" per-ABI code ... Conflicts: arch/arm/include/asm/thread_info.h
2012-10-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull generic execve() changes from Al Viro: "This introduces the generic kernel_thread() and kernel_execve() functions, and switches x86, arm, alpha, um and s390 over to them." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (26 commits) s390: convert to generic kernel_execve() s390: switch to generic kernel_thread() s390: fold kernel_thread_helper() into ret_from_fork() s390: fold execve_tail() into start_thread(), convert to generic sys_execve() um: switch to generic kernel_thread() x86, um/x86: switch to generic sys_execve and kernel_execve x86: split ret_from_fork alpha: introduce ret_from_kernel_execve(), switch to generic kernel_execve() alpha: switch to generic kernel_thread() alpha: switch to generic sys_execve() arm: get rid of execve wrapper, switch to generic execve() implementation arm: optimized current_pt_regs() arm: introduce ret_from_kernel_execve(), switch to generic kernel_execve() arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk] generic sys_execve() generic kernel_execve() new helper: current_pt_regs() preparation for generic kernel_thread() um: kill thread->forking um: let signal_delivered() do SIGTRAP on singlestepping into handler ...
2012-10-09Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge patches from Andrew Morton: "A few misc things and very nearly all of the MM tree. A tremendous amount of stuff (again), including a significant rbtree library rework." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (160 commits) sparc64: Support transparent huge pages. mm: thp: Use more portable PMD clearing sequenece in zap_huge_pmd(). mm: Add and use update_mmu_cache_pmd() in transparent huge page code. sparc64: Document PGD and PMD layout. sparc64: Eliminate PTE table memory wastage. sparc64: Halve the size of PTE tables sparc64: Only support 4MB huge pages and 8KB base pages. memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning mm: memcg: clean up mm_match_cgroup() signature mm: document PageHuge somewhat mm: use %pK for /proc/vmallocinfo mm, thp: fix mlock statistics mm, thp: fix mapped pages avoiding unevictable list on mlock memory-hotplug: update memory block's state and notify userspace memory-hotplug: preparation to notify memory block's state at memory hot remove mm: avoid section mismatch warning for memblock_type_name make GFP_NOTRACK definition unconditional cma: decrease cc.nr_migratepages after reclaiming pagelist CMA: migrate mlocked pages kpageflags: fix wrong KPF_THP on non-huge compound pages ...
2012-10-09readahead: fault retry breaks mmap file read random detectionShaohua Li
.fault now can retry. The retry can break state machine of .fault. In filemap_fault, if page is miss, ra->mmap_miss is increased. In the second try, since the page is in page cache now, ra->mmap_miss is decreased. And these are done in one fault, so we can't detect random mmap file access. Add a new flag to indicate .fault is tried once. In the second try, skip ra->mmap_miss decreasing. The filemap_fault state machine is ok with it. I only tested x86, didn't test other archs, but looks the change for other archs is obvious, but who knows :) Signed-off-by: Shaohua Li <shaohua.li@fusionio.com> Cc: Rik van Riel <riel@redhat.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09Merge tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linuxLinus Torvalds
Pull Xtensa patchset from Chris Zankel: "The Xtensa tree has been broken for some time now, and this patchset brings it back to life. It has been part of the linux-next tree for some time. Most changes are inside the xtensa subdirectory; the other changes mostly add another rule to already existing #ifdefs to exclude Xtensa, where required. The only 'common' change is to add two more sections ('.xt.prop' and '.xt.lit') to the white list in modpost." * tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linux: (27 commits) xtensa: Setup CROSS_COMPILE at the top xtensa: drop CONFIG_EMBEDDED_RAMDISK xtensa: fix TIOCGSERIAL and TIOCSSERIAL definitions xtensa: provide dummy gcc intrinsics xtensa: add missing symbol exports parport: disable for xtensa arch xtensa: rename MISC SR definition to avoid name clashes hisax: disable build for big-endian xtensa xtensa: fix CODA build xtensa: fix parallel make xtensa: ISS: drop unused io.c xtensa: ISS: exit simulator in case of halt or poweroff xtensa: ISS: change keyboard polling rate xtensa: ISS: add platform_pcibios_init xtensa: ISS: add dummy serial.h for ISS platform xtensa: change default platform clock frequency to 10MHz xtensa: add ARCH_WANT_OPTIONAL_GPIOLIB to xtensa config xtensa: set NO_IOPORT to 'n' by default xtensa: adopt generic io routines xtensa: fix ioremap ...
2012-10-09Merge tag 'asm-generic' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "This has three changes for asm-generic that did not really fit into any other branch as normal asm-generic changes do. One is a fix for a build warning, the other two are more interesting: * A patch from Mark Brown to allow using the common clock infrastructure on all architectures, so we can use the clock API in architecture independent device drivers. * The UAPI split patches from David Howells for the asm-generic files. There are other architecture specific series that are going through the arch maintainer tree and that depend on this one. There may be a few small merge conflicts between Mark's patch and the following arch header file split patches. In each case the solution will be to keep the new "generic-y += clkdev.h" line, even if it ends up being the only line in the Kbuild file." * tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: UAPI: (Scripted) Disintegrate include/asm-generic asm-generic: Add default clkdev.h asm-generic: xor: mark static functions as __maybe_unused
2012-10-06cross-arch: don't corrupt personality flags upon exec()Jiri Kosina
Historically, the top three bytes of personality have been used for things such as ADDR_NO_RANDOMIZE, which made sense only for specific architectures. We now however have a flag there that is general no matter the architecture (UNAME26); generally we have to be careful to preserve the personality flags across exec(). This patch tries to fix all architectures that forcefully overwrite personality flags during exec() (ppc32 and s390 have been fixed recently by commits f9783ec862ea ("[S390] Do not clobber personality flags on exec") and 59e4c3a2fe9c ("powerpc/32: Don't clobber personality flags on exec") in a similar way already). Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mark Salter <msalter@redhat.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-04Merge branch 'disintegrate-asm-generic' of ↵Arnd Bergmann
git://git.infradead.org/users/dhowells/linux-headers into asm-generic Patches from David Howells <dhowells@redhat.com>: This is to complete part of the UAPI disintegration for which the preparatory patches were pulled recently. Note that there are some fixup patches which are at the base of the branch aimed at you, plus all arches get the asm-generic branch merged in too. * 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate include/asm-generic UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k) c6x: remove c6x signal.h UAPI: Split compound conditionals containing __KERNEL__ in Arm64 UAPI: Fix the guards on various asm/unistd.h files Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-10-04xtensa: Setup CROSS_COMPILE at the topGeert Uytterhoeven
CROSS_COMPILE must be setup before using e.g. cc-option (and a few other as-*, cc-*, ld-* macros), else they will check against the wrong compiler when cross-compiling, and may invoke the cross compiler with wrong or suboptimal compiler options. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: drop CONFIG_EMBEDDED_RAMDISKMax Filippov
Remove Kconfig entries, boot subdirectory, dependencies from other boot-* Makefiles, and sections from ld scripts. Remove stale redboot code that used to pass initrd addresses in a3 and a4 to _start. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix TIOCGSERIAL and TIOCSSERIAL definitionsMax Filippov
Put equivalent constants into TIOCGSERIAL and TIOCSSERIAL definitions: size subfield of these IOCTL codes is not used and no other architecture uses _IO* macros here. The other way could be putting #include <linux/serial.h> into net/bluetooth/rfcomm/tty.c. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: provide dummy gcc intrinsicsMax Filippov
__xtensa_libgcc_window_spill is needed for __builtin_return_address(1), but its libgcc implementation cannot be used as it makes a syscall. Atomic intrinsics are used by single staging driver. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: add missing symbol exportsMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: rename MISC SR definition to avoid name clashesMax Filippov
There are other special register that cause build warnings and may as well need renaming as well. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix CODA buildMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix parallel makeMax Filippov
Make vmlinux.tmp and vmlinux.tmp.gz separate build targets, avoid removing vmlinux.tmp during vmlinux.tmp.gz build. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: drop unused io.cMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: exit simulator in case of halt or poweroffMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: change keyboard polling rateMax Filippov
Polling rate of once per 20 seconds seems to be too low. Increase it to 10 times per second. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: add platform_pcibios_initMax Filippov
Provide pcibios initialization function in case PCI is enabled in the kernel config. This allows building kernel in allmodconfig configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: add dummy serial.h for ISS platformMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: change default platform clock frequency to 10MHzMax Filippov
Existing simulators show this level of performance. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: add ARCH_WANT_OPTIONAL_GPIOLIB to xtensa configMax Filippov
This is needed for various modules requiring GPIO. This allows building kernel in allmodconfig configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: set NO_IOPORT to 'n' by defaultMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: adopt generic io routinesMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix ioremapMax Filippov
- fix ioremap_nocache to actually return non-cacheable address - add explicit ioremap_cache - fix KIO aperture checking arithmetic Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: fix __simc implementationMax Filippov
Do not rely on compiler implicitly placing function arguments into specifc registers, place them explicitly. Move __simc and related helpers to platform/simcall.h Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: fix xtensa_irq_unmask callsMax Filippov
xtensa_irq_disable/xtensa_irq_enable used to call xtensa_irq_unmask with wrong argument. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa/PCI: fix WT caching attributeMax Filippov
Fix caching attributes setup providing correct _PAGE_CA_* names. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-03xtensa: ISS: only build networking if configuredMax Filippov
This allows building kernel in allnoconfig configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>