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* Merge branch 'upstream/jump-label-noearly' of ↵Linus Torvalds2011-11-061-8/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'upstream/jump-label-noearly' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: jump-label: initialize jump-label subsystem much earlier x86/jump_label: add arch_jump_label_transform_static() s390/jump-label: add arch_jump_label_transform_static() jump_label: add arch_jump_label_transform_static() to optimise non-live code updates sparc/jump_label: drop arch_jump_label_text_poke_early() x86/jump_label: drop arch_jump_label_text_poke_early() jump_label: if a key has already been initialized, don't nop it out stop_machine: make stop_machine safe and efficient to call early jump_label: use proper atomic_t initializer Conflicts: - arch/x86/kernel/jump_label.c Added __init_or_module to arch_jump_label_text_poke_early vs removal of that function entirely - kernel/stop_machine.c same patch ("stop_machine: make stop_machine safe and efficient to call early") merged twice, with whitespace fix in one version
| * sparc/jump_label: drop arch_jump_label_text_poke_early()Jeremy Fitzhardinge2011-10-251-8/+0
| | | | | | | | | | | | | | | | | | It is no longer used. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: David Miller <davem@davemloft.net>
* | Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds2011-11-0655-35/+46
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
| * | sparc: Add module.h to files previously implicitly using it.Paul Gortmaker2011-10-313-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The file mm/extable.c needs module.h for within_module_init(), and also for search_exception_tables [which arguably could be living somewhere more appropriate than module.h] - eventually causing this: arch/sparc/mm/extable.c: In function 'trim_init_extable': arch/sparc/mm/extable.c:74: error: dereferencing pointer to incomplete type arch/sparc/mm/extable.c:75: error: dereferencing pointer to incomplete type arch/sparc/mm/extable.c:77: error: implicit declaration of function 'within_module_init' arch/sparc/mm/extable.c:77: error: dereferencing pointer to incomplete type arch/sparc/mm/extable.c:78: error: dereferencing pointer to incomplete type arch/sparc/mm/extable.c:80: error: dereferencing pointer to incomplete type arch/sparc/mm/extable.c: In function 'search_extables_range': arch/sparc/mm/extable.c:93: error: implicit declaration of function 'search_exception_tables' The other instances are more straight forward uses of things like MODULE_* and module_* Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | sparc: remove several unnecessary module.h include instancesPaul Gortmaker2011-10-3113-13/+0
| | | | | | | | | | | | | | | | | | | | | | | | Building an allyesconfig doesn't reveal a hidden need for any of these. Since module.h brings in the whole kitchen sink, it just needlessly adds 30k+ lines to the cpp burden. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | sparc: move symbol exporters to use export.h not module.hPaul Gortmaker2011-10-3123-23/+23
| | | | | | | | | | | | | | | | | | | | | | | | Many of the core sparc kernel files are not modules, but just including module.h for exporting symbols. Now these files can use the lighter footprint export.h for this role. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | sparc: add export.h to arch/sparc files as requiredPaul Gortmaker2011-10-3118-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | These files are only exporting symbols, so they don't need the full module.h header file. Previously they were getting access to EXPORT_SYMBOL implicitly via overuse of module.h from within other .h files, but that is being cleaned up. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | sparc: fix implicit use of uaccess.h header in mdesc.cPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Building sparc64 with the module.h cleanup reveals this implicit include being taken advantage of: arch/sparc/kernel/mdesc.c: In function 'mdesc_read': arch/sparc/kernel/mdesc.c:900: error: implicit declaration of function 'copy_to_user' Fix it up before the implicit module.h presence is removed. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | sparc: fix implicit use of spitfire.h in pcr.c and of_device_64.cPaul Gortmaker2011-10-312-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To resolve these on 64bit allnoconfig builds: CC arch/sparc/kernel/pcr.o arch/sparc/kernel/pcr.c: In function 'register_perf_hsvc': arch/sparc/kernel/pcr.c:102: error: 'tlb_type' undeclared (first use in this function) CC arch/sparc/kernel/of_device_64.o arch/sparc/kernel/of_device_64.c: In function 'build_device_resources': arch/sparc/kernel/of_device_64.c:406: error: 'tlb_type' undeclared (first use in this function) Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | | Merge branch 'trivial' of ↵Linus Torvalds2011-11-061-6/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild * 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scsi: drop unused Kconfig symbol pci: drop unused Kconfig symbol stmmac: drop unused Kconfig symbol x86: drop unused Kconfig symbol powerpc: drop unused Kconfig symbols powerpc: 40x: drop unused Kconfig symbol mips: drop unused Kconfig symbols openrisc: drop unused Kconfig symbols arm: at91: drop unused Kconfig symbol samples: drop unused Kconfig symbol m32r: drop unused Kconfig symbol score: drop unused Kconfig symbols sh: drop unused Kconfig symbol um: drop unused Kconfig symbol sparc: drop unused Kconfig symbol alpha: drop unused Kconfig symbol Fix up trivial conflict in drivers/net/ethernet/stmicro/stmmac/Kconfig as per Michal: the STMMAC_DUAL_MAC config variable is still unused and should be deleted.
| * | | sparc: drop unused Kconfig symbolPaul Bolle2011-10-311-6/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | | thp: share get_huge_page_tail()Andrea Arcangeli2011-11-021-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids duplicating the function in every arch gup_fast. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <jweiner@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | sparc: gup_pte_range() support THP based tail recountingAndrea Arcangeli2011-11-021-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Up to this point the code assumed old refcounting for hugepages (pre-thp). This updates the code directly to the thp mapcount tail page refcounting. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <jweiner@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2011-10-312-721/+115
|\ \ \ \ | |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Fix masking and shifting in VIS fpcmp emulation. sparc32: Correct the return value of memcpy. sparc32: Remove uses of %g7 in memcpy implementation. sparc32: Remove non-kernel code from memcpy implementation.
| * | | sparc64: Fix masking and shifting in VIS fpcmp emulation.David S. Miller2011-10-311-16/+16
| | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | sparc32: Correct the return value of memcpy.David S. Miller2011-10-201-15/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Properly return the original destination buffer pointer. Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Kjetil Oftedal <oftedal@gmail.com>
| * | | sparc32: Remove uses of %g7 in memcpy implementation.David S. Miller2011-10-201-87/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is setting things up so that we can correct the return value, so that it properly returns the original destination buffer pointer. Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Kjetil Oftedal <oftedal@gmail.com>
| * | | sparc32: Remove non-kernel code from memcpy implementation.David S. Miller2011-10-201-605/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Kjetil Oftedal <oftedal@gmail.com>
* | | | compat: sync compat_stats with statfs.Eric W. Biederman2011-10-281-1/+2
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was found by inspection while tracking a similar bug in compat_statfs64, that has been fixed in mainline since decemeber. - This fixes a bug where not all of the f_spare fields were cleared on mips and s390. - Add the f_flags field to struct compat_statfs - Copy f_flags to userspace in case someone cares. - Use __clear_user to copy the f_spare field to userspace to ensure that all of the elements of f_spare are cleared. On some architectures f_spare is has 5 ints and on some architectures f_spare only has 4 ints. Which makes the previous technique of clearing each int individually broken. I don't expect anyone actually uses the old statfs system call anymore but if they do let them benefit from having the compat and the native version working the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* | | sparc: Add alignment flag to PCI expansion resourcesKjetil Oftedal2011-10-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently no type of alignment is specified for PCI expansion roms while parsing the openfirmware tree. This causes calls to pci_map_rom() to fail. IORESOURCE_SIZEALIGN is the default alignment used for rom resouces in pci/probe.c, and has been verified to work with various cards on a ultra 10. Signed-off-By: Kjetil Oftedal <oftedal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc: Avoid calling sigprocmask()David S. Miller2011-10-123-3/+3
| | | | | | | | | | | | | | | | | | Use set_current_blocked() instead. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc: Use set_current_blocked()Matt Fleming2011-10-123-49/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Cc: Oleg Nesterov <oleg@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc32,leon: SRMMU MMU Table probe fixDaniel Hellstrom2011-10-072-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The LEON MMU Model (SRMMU) does not implement MMu Table probing in hardware, instead it is implemented in software. However the software implementation does not return the PTE as it should which always results in INVALID entires and the PROM mappings are not inherited as they should during startup. The following patch removes the masking of the PTE. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc64: Force the execute bit in OpenFirmware's translation entries.David S. Miller2011-09-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the OF 'translations' property, the template TTEs in the mappings never specify the executable bit. This is the case even though some of these mappings are for OF's code segment. Therefore, we need to force the execute bit on in every mapping. This problem can only really trigger on Niagara/sun4v machines and the history behind this is a little complicated. Previous to sun4v, the sun4u TTE entries lacked a hardware execute permission bit. So OF didn't have to ever worry about setting anything to handle executable pages. Any valid TTE loaded into the I-TLB would be respected by the chip. But sun4v Niagara chips have a real hardware enforced executable bit in their TTEs. So it has to be set or else the I-TLB throws an instruction access exception with type code 6 (protection violation). We've been extremely fortunate to not get bitten by this in the past. The best I can tell is that the OF's mappings for it's executable code were mapped using permanent locked mappings on sun4v in the past. Therefore, the fact that we didn't have the exec bit set in the OF translations we would use did not matter in practice. Thanks to Greg Onufer for helping me track this down. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc: Make '-p' boot option meaningful again.David S. Miller2011-09-212-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If "-p" is given on the command line, clear the CON_BOOT flag for the initial early boot PROM console. This is necessary to try and see crash messages that occur between the registry of the VT console and the probing of the first framebuffer or serial console. During this time no console messages are emitted because the VT console registry (even if no backend is registered to it) removes the early console if CON_BOOT is set. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc, exec: remove redundant addr_limit assignmentMathias Krause2011-09-202-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The address limit is already set in flush_old_exec() so this assignment of USER_DS is redundant. Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | sparc64: Future proof Niagara cpu detection.David S. Miller2011-09-166-8/+53
| |/ |/| | | | | | | | | | | | | Recognize T4 and T5 chips. Treating them both as "T2 plus other stuff" should be extremely safe and make sure distributions will work when those chips actually ship to customers. Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc64: Only Panther cheetah+ chips have POPC.David S. Miller2011-08-291-2/+8
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and ↵Kjetil Oftedal2011-08-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | timer interrupt On Sun4d systems running in SMP mode, IRQ 14 is used for timer interrupts and has a specialized interrupt handler. IPI is currently set to use IRQ 14 as well, which causes it to trigger the timer interrupt handler, and not the IPI interrupt handler. The IPI interrupt is therefore changed to IRQ 13, which is the highest normally handled interrupt. This IRQ is also used for SBUS interrupts, however there is nothing in the IPI/SBUS interrupt handlers that indicate that they will not handle sharing the interrupt. (IRQ 13 is indicated as audio interrupt, which is unlikely to be found in a sun4d system) Signed-off-by: Kjetil Oftedal <oftedal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc: Remove another reference to nfsservctlStephen Rothwell2011-08-291-1/+1
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | All Arch: remove linkage for sys_nfsservctl system callNeilBrown2011-08-263-3/+2
| | | | | | | | | | | | | | | | | | The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | sparc: Allow handling signals when stack is corrupted.David S. Miller2011-08-208-233/+468
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we can't push the pending register windows onto the user's stack, we disallow signal delivery even if the signal would be delivered on a valid seperate signal stack. Add a register window save area in the signal frame, and store any unsavable windows there. On sigreturn, if any windows are still queued up in the signal frame, try to push them back onto the stack and if that fails we kill the process immediately. This allows the debug/tst-longjmp_chk2 glibc test case to pass. Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc: fix array bounds error setting up PCIC NMI trapIan Campbell2011-08-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CC arch/sparc/kernel/pcic.o arch/sparc/kernel/pcic.c: In function 'pcic_probe': arch/sparc/kernel/pcic.c:359:33: error: array subscript is above array bounds [-Werror=array-bounds] arch/sparc/kernel/pcic.c:359:8: error: array subscript is above array bounds [-Werror=array-bounds] arch/sparc/kernel/pcic.c:360:33: error: array subscript is above array bounds [-Werror=array-bounds] arch/sparc/kernel/pcic.c:360:8: error: array subscript is above array bounds [-Werror=array-bounds] arch/sparc/kernel/pcic.c:361:33: error: array subscript is above array bounds [-Werror=array-bounds] arch/sparc/kernel/pcic.c:361:8: error: array subscript is above array bounds [-Werror=array-bounds] cc1: all warnings being treated as errors I'm not particularly familiar with sparc but t_nmi (defined in head_32.S via the TRAP_ENTRY macro) and pcic_nmi_trap_patch (defined in entry.S) both appear to be 4 instructions long and I presume from the usage that instructions are int sized. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc64: Set HAVE_C_RECORDMCOUNTDavid S. Miller2011-08-151-0/+1
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32: unbreak arch_write_unlock()Mikael Pettersson2011-08-151-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sparc32 version of arch_write_unlock() is just a plain assignment. Unfortunately this allows the compiler to schedule side-effects in a protected region to occur after the HW-level unlock, which is broken. E.g., the following trivial test case gets miscompiled: #include <linux/spinlock.h> rwlock_t lock; int counter; void foo(void) { write_lock(&lock); ++counter; write_unlock(&lock); } Fixed by adding a compiler memory barrier to arch_write_unlock(). The sparc64 version combines the barrier and assignment into a single asm(), and implements the operation as a static inline, so that's what I did too. Compile-tested with sparc32_defconfig + CONFIG_SMP=y. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc64: remove unnecessary macros from spinlock_64.hMikael Pettersson2011-08-151-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sparc64 spinlock_64.h contains a number of operations defined first as static inline functions, and then as macros with the same names and parameters as the functions. Maybe this was needed at some point in the past, but now nothing seems to depend on these macros (checked with a recursive grep looking for ifdefs on these names). Other archs don't define these identity-macros. So this patch deletes these unnecessary macros. Compile-tested with sparc64_defconfig. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc: Don't do hypervisor calls on non-sun4v in DS driver.David S. Miller2011-08-111-6/+7
|/ | | | | Reported-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Fix build with DEBUG_PAGEALLOC enabled.David S. Miller2011-08-061-2/+4
| | | | | | | arch/sparc/mm/init_64.c:1622:22: error: unused variable '__swapper_4m_tsb_phys_patch_end' [-Werror=unused-variable] arch/sparc/mm/init_64.c:1621:22: error: unused variable '__swapper_4m_tsb_phys_patch' [-Werror=unused-variable] Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2011-08-0530-258/+661
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Size mondo queues more sanely. sparc: Access kernel TSB using physical addressing when possible. sparc: Fix __atomic_add_unless() return value. sparc: use kbuild-generic support for true asm-generic header files sparc: Use popc when possible for ffs/__ffs/ffz. sparc: Set reboot-cmd using reboot data hypervisor call if available. sparc: Add some missing hypervisor API groups. sparc: Use hweight64() in popc emulation. sparc: Use popc if possible for hweight routines. sparc: Minor tweaks to Niagara page copy/clear. sparc: Sanitize cpu feature detection and reporting.
| * sparc: Size mondo queues more sanely.David S. Miller2011-08-051-7/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is currently no upper limit on the mondo queue sizes we'll use, which guarentees that we'll eventually his page allocation limits, and thus allocation failures, due to MAX_ORDER. Cap the sizes sanely, current limits are: CPU MONDO 2 * max_possible_cpus DEV MONDO 256 (basically NR_IRQS) RES MONDO 128 NRES MONDO 4 Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Access kernel TSB using physical addressing when possible.David S. Miller2011-08-054-40/+85
| | | | | | | | | | | | | | | | On sun4v this is basically required since we point the hypervisor and the TSB walking hardware at these tables using physical addressing too. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Fix __atomic_add_unless() return value.Josip Rodin2011-08-041-1/+1
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: use kbuild-generic support for true asm-generic header filesSam Ravnborg2011-08-045-9/+5
| | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Use popc when possible for ffs/__ffs/ffz.David S. Miller2011-08-027-15/+126
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Set reboot-cmd using reboot data hypervisor call if available.David S. Miller2011-08-025-9/+53
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Add some missing hypervisor API groups.David S. Miller2011-08-022-0/+12
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Use hweight64() in popc emulation.David S. Miller2011-08-021-11/+4
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Use popc if possible for hweight routines.David S. Miller2011-08-027-40/+102
| | | | | | | | | | | | Just like powerpc, we code patch at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Minor tweaks to Niagara page copy/clear.David S. Miller2011-08-024-102/+77
| | | | | | | | | | | | | | | | | | | | Don't use floating point on Niagara2, use the traditional plain Niagara code instead. Unroll Niagara loops to 128 bytes for copy, and 256 bytes for clear. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Sanitize cpu feature detection and reporting.David S. Miller2011-07-284-36/+185
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of evaluating the cpu features for ELF_HWCAP every exec, calculate it once at boot time. Add AV_SPARC_* capability flag bits, compatible with what Solaris reports to applications. Report these capabilities once in the kernel log, and also via /proc/cpuinfo in a new "cpucaps" entry. If available, fetch the cpu features from the machine description 'hwcap-list' property of the 'cpu' node. Signed-off-by: David S. Miller <davem@davemloft.net>
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