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* Merge tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds2012-07-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug: - Add MMCONFIG support for hot-added host bridges (Jiang Liu) Device hotplug: - Move fixups from __init to __devinit (Sebastian Andrzej Siewior) - Call FINAL fixups for hot-added devices, too (Myron Stowe) - Factor out generic code for P2P bridge hot-add (Yinghai Lu) - Remove all functions in a slot, not just those with _EJx (Amos Kong) Dynamic resource management: - Track bus number allocation (struct resource tree per domain) (Yinghai Lu) - Make P2P bridge 1K I/O windows work with resource reassignment (Bjorn Helgaas, Yinghai Lu) - Disable decoding while updating 64-bit BARs (Bjorn Helgaas) Power management: - Add PCIe runtime D3cold support (Huang Ying) Virtualization: - Add VFIO infrastructure (ACS, DMA source ID quirks) (Alex Williamson) - Add quirks for devices with broken INTx masking (Jan Kiszka) Miscellaneous: - Fix some PCI Express capability version issues (Myron Stowe) - Factor out some arch code with a weak, generic, pcibios_setup() (Myron Stowe)" * tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (122 commits) PCI: hotplug: ensure a consistent return value in error case PCI: fix undefined reference to 'pci_fixup_final_inited' PCI: build resource code for M68K architecture PCI: pciehp: remove unused pciehp_get_max_lnk_width(), pciehp_get_cur_lnk_width() PCI: reorder __pci_assign_resource() (no change) PCI: fix truncation of resource size to 32 bits PCI: acpiphp: merge acpiphp_debug and debug PCI: acpiphp: remove unused res_lock sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: call final fixups hot-added devices PCI: move final fixups from __init to __devinit x86/PCI: move final fixups from __init to __devinit MIPS/PCI: move final fixups from __init to __devinit PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: disable MEM decoding while updating 64-bit MEM BARs PCI: leave MEM and IO decoding disabled during 64-bit BAR sizing, too PCI: never discard enable/suspend/resume_early/resume fixups PCI: release temporary reference in __nv_msi_ht_cap_quirk() PCI: restructure 'pci_do_fixups()' ...
| * Merge branch 'pci/bjorn-p2p-bridge-windows' into nextBjorn Helgaas2012-07-10
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pci/bjorn-p2p-bridge-windows: sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: allow P2P bridge windows starting at PCI bus address zero Conflicts: drivers/pci/probe.c include/linux/pci.h
| | * sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases()Bjorn Helgaas2012-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic code to read P2P bridge windows is functionally equivalent to the sparc-specific pci_cfg_fake_ranges(), so use the generic code. The "if (!res->start) res->start = ..." removed from the I/O window code here was an artifact of the Intel 1K window support from 9d265124d051 and is no longer necessary (it probably was just cloned from x86 and was never useful on sparc). Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | Merge branch 'pci/myron-pcibios_setup' into nextBjorn Helgaas2012-07-05
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pci/myron-pcibios_setup: xtensa/PCI: factor out pcibios_setup() x86/PCI: adjust section annotations for pcibios_setup() unicore32/PCI: adjust section annotations for pcibios_setup() tile/PCI: factor out pcibios_setup() sparc/PCI: factor out pcibios_setup() sh/PCI: adjust section annotations for pcibios_setup() sh/PCI: factor out pcibios_setup() powerpc/PCI: factor out pcibios_setup() parisc/PCI: factor out pcibios_setup() MIPS/PCI: adjust section annotations for pcibios_setup() MIPS/PCI: factor out pcibios_setup() microblaze/PCI: factor out pcibios_setup() ia64/PCI: factor out pcibios_setup() cris/PCI: factor out pcibios_setup() alpha/PCI: factor out pcibios_setup() PCI: pull pcibios_setup() up into core
| | * | sparc/PCI: factor out pcibios_setup()Myron Stowe2012-07-05
| | |/ | | | | | | | | | | | | | | | | | | | | | The PCI core provides a generic pcibios_setup() routine. Drop this architecture-specific version in favor of that. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | Merge branch 'topic/bjorn-trivial' into nextBjorn Helgaas2012-06-22
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * topic/bjorn-trivial: PCI: remove useless pcix_set_mmrbc() dev->bus check PCI: acpiphp: check whether _ADR evaluation succeeded PCI: shpchp: remove dead code PCI: fix P2P bridge I/O port window sign extension PCI: fix upstream P2P bridge checks when enabling OBFF and LTR PCI: use __weak consistently PCI: cleanup assign_requested_resources_sorted() kernel-doc warning sparc/PCI: remove unused pcibios_assign_resource() definition
| | * | sparc/PCI: remove unused pcibios_assign_resource() definitionBjorn Helgaas2012-06-15
| | |/ | | | | | | | | | | | | pcibios_assign_resource() isn't used anywhere; remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | sparc/PCI: register busn_res for root busesYinghai Lu2012-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog, fix "pci_last_busn" typo] Acked-by: "David S. Miller" <davem@davemloft.net> CC: sparclinux@vger.kernel.org Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | PCI: replace struct pci_bus secondary/subordinate with busn_resYinghai Lu2012-06-13
| |/ | | | | | | | | | | | | | | | | Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* | Merge tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linuxLinus Torvalds2012-07-24
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull devicetree updates from Rob Herring: "A small set of changes for devicetree: - Couple of Documentation fixes - Addition of new helper function of_node_full_name - Improve of_parse_phandle_with_args return values - Some NULL related sparse fixes" Grant's busy packing. * tag 'dt-for-3.6' of git://sources.calxeda.com/kernel/linux: of: mtd: nuke useless const qualifier devicetree: add helper inline for retrieving a node's full name of: return -ENOENT when no property usage-model.txt: fix typo machine_init->init_machine of: Fix null pointer related warnings in base.c file LED: Fix missing semicolon in OF documentation of: fix a few typos in the binding documentation
| * | devicetree: add helper inline for retrieving a node's full nameGrant Likely2012-07-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pattern (np ? np->full_name : "<none>") is rather common in the kernel, but can also make for quite long lines. This patch adds a new inline function, of_node_full_name() so that the test for a valid node pointer doesn't need to be open coded at all call sites. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | | Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds2012-07-22
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smp/hotplug changes from Ingo Molnar: "Various cleanups to the SMP hotplug code - a continuing effort of Thomas et al" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smpboot: Remove leftover declaration smp: Remove num_booting_cpus() smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]() POWERPC: Smp: remove call to ipi_call_lock()/ipi_call_unlock() SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() ia64: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq() x86-smp-remove-call-to-ipi_call_lock-ipi_call_unlock tile: SMP: Remove call to ipi_call_lock()/ipi_call_unlock() S390: Smp: remove call to ipi_call_lock()/ipi_call_unlock() parisc: Smp: remove call to ipi_call_lock()/ipi_call_unlock() mn10300: SMP: Remove call to ipi_call_lock()/ipi_call_unlock() hexagon: SMP: Remove call to ipi_call_lock()/ipi_call_unlock()
| * | SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()Yong Zhang2012-06-05
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipi_call_lock/unlock() lock resp. unlock call_function.lock. This lock protects only the call_function data structure itself, but it's completely unrelated to cpu_online_mask. The mask to which the IPIs are sent is calculated before call_function.lock is taken in smp_call_function_many(), so the locking around set_cpu_online() is pointless and can be removed. Delay irq enable to after set_cpu_online(). [ tglx: Massaged changelog ] Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: ralf@linux-mips.org Cc: sshtylyov@mvista.com Cc: david.daney@cavium.com Cc: nikunj@linux.vnet.ibm.com Cc: paulmck@linux.vnet.ibm.com Cc: axboe@kernel.dk Cc: peterz@infradead.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/20120529082732.GA4250@zhy Acked-by: "David S. Miller" <davem@davemloft.net> Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* / Fix typo in printed messagesAnatol Pomozov2012-06-24
|/ | | | | | Coult -> Could Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-06-01
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull third pile of signal handling patches from Al Viro: "This time it's mostly helpers and conversions to them; there's a lot of stuff remaining in the tree, but that'll either go in -rc2 (isolated bug fixes, ideally via arch maintainers' trees) or will sit there until the next cycle." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: x86: get rid of calling do_notify_resume() when returning to kernel mode blackfin: check __get_user() return value whack-a-mole with TIF_FREEZE FRV: Optimise the system call exit path in entry.S [ver #2] FRV: Shrink TIF_WORK_MASK [ver #2] FRV: Prevent syscall exit tracing and notify_resume at end of kernel exceptions new helper: signal_delivered() powerpc: get rid of restore_sigmask() most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set set_restore_sigmask() is never called without SIGPENDING (and never should be) TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set don't call try_to_freeze() from do_signal() pull clearing RESTORE_SIGMASK into block_sigmask() sh64: failure to build sigframe != signal without handler openrisc: tracehook_signal_handler() is supposed to be called on success new helper: sigmask_to_save() new helper: restore_saved_sigmask() new helpers: {clear,test,test_and_clear}_restore_sigmask() HAVE_RESTORE_SIGMASK is defined on all architectures now
| * new helper: signal_delivered()Al Viro2012-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Does block_sigmask() + tracehook_signal_handler(); called when sigframe has been successfully built. All architectures converted to it; block_sigmask() itself is gone now (merged into this one). I'm still not too happy with the signature, but that's a separate story (IMO we need a structure that would contain signal number + siginfo + k_sigaction, so that get_signal_to_deliver() would fill one, signal_delivered(), handle_signal() and probably setup...frame() - take one). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from setAl Viro2012-06-01
| | | | | | | | | | | | | | | | Only 3 out of 63 do not. Renamed the current variant to __set_current_blocked(), added set_current_blocked() that will exclude unblockable signals, switched open-coded instances to it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is setAl Viro2012-06-01
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * pull clearing RESTORE_SIGMASK into block_sigmask()Al Viro2012-06-01
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * new helper: sigmask_to_save()Al Viro2012-06-01
| | | | | | | | | | | | | | replace boilerplate "should we use ->saved_sigmask or ->blocked?" with calls of obvious inlined helper... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * new helper: restore_saved_sigmask()Al Viro2012-06-01
| | | | | | | | | | | | | | | | | | first fruits of ..._restore_sigmask() helpers: now we can take boilerplate "signal didn't have a handler, clear RESTORE_SIGMASK and restore the blocked mask from ->saved_mask" into a common helper. Open-coded instances switched... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-06-01
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs changes from Al Viro. "A lot of misc stuff. The obvious groups: * Miklos' atomic_open series; kills the damn abuse of ->d_revalidate() by NFS, which was the major stumbling block for all work in that area. * ripping security_file_mmap() and dealing with deadlocks in the area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in general. * ->encode_fh() switched to saner API; insane fake dentry in mm/cleancache.c gone. * assorted annotations in fs (endianness, __user) * parts of Artem's ->s_dirty work (jff2 and reiserfs parts) * ->update_time() work from Josef. * other bits and pieces all over the place. Normally it would've been in two or three pull requests, but signal.git stuff had eaten a lot of time during this cycle ;-/" Fix up trivial conflicts in Documentation/filesystems/vfs.txt (the 'truncate_range' inode method was removed by the VM changes, the VFS update adds an 'update_time()' method), and in fs/btrfs/ulist.[ch] (due to sparse fix added twice, with other changes nearby). * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits) nfs: don't open in ->d_revalidate vfs: retry last component if opening stale dentry vfs: nameidata_to_filp(): don't throw away file on error vfs: nameidata_to_filp(): inline __dentry_open() vfs: do_dentry_open(): don't put filp vfs: split __dentry_open() vfs: do_last() common post lookup vfs: do_last(): add audit_inode before open vfs: do_last(): only return EISDIR for O_CREAT vfs: do_last(): check LOOKUP_DIRECTORY vfs: do_last(): make ENOENT exit RCU safe vfs: make follow_link check RCU safe vfs: do_last(): use inode variable vfs: do_last(): inline walk_component() vfs: do_last(): make exit RCU safe vfs: split do_lookup() Btrfs: move over to use ->update_time fs: introduce inode operation ->update_time reiserfs: get rid of resierfs_sync_super reiserfs: mark the superblock as dirty a bit later ...
| * ia64, sparc64: convert wrappers around do_mremap() to sys_mremap()Al Viro2012-05-30
| | | | | | | | | | | | they contain open-coded sys_mremap() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-05-31
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull second pile of signal handling patches from Al Viro: "This one is just task_work_add() series + remaining prereqs for it. There probably will be another pull request from that tree this cycle - at least for helpers, to get them out of the way for per-arch fixes remaining in the tree." Fix trivial conflict in kernel/irq/manage.c: the merge of Andrew's pile had brought in commit 97fd75b7b8e0 ("kernel/irq/manage.c: use the pr_foo() infrastructure to prefix printks") which changed one of the pr_err() calls that this merge moves around. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: keys: kill task_struct->replacement_session_keyring keys: kill the dummy key_replace_session_keyring() keys: change keyctl_session_to_parent() to use task_work_add() genirq: reimplement exit_irq_thread() hook via task_work_add() task_work_add: generic process-context callbacks avr32: missed _TIF_NOTIFY_RESUME on one of do_notify_resume callers parisc: need to check NOTIFY_RESUME when exiting from syscall move key_repace_session_keyring() into tracehook_notify_resume() TIF_NOTIFY_RESUME is defined on all targets now
| * | move key_repace_session_keyring() into tracehook_notify_resume()Al Viro2012-05-23
| |/ | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | sparc: fix sparc64 build due to leon.h inclusionSam Ravnborg2012-05-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stephen Rothwell <sfr@canb.auug.org.au> reported following error: In file included from arch/sparc/kernel/prom_common.c:26:0: arch/sparc/include/asm/leon.h:221:9: error: unknown type name 'irq_flow_handler_t' arch/sparc/include/asm/leon.h:224:10: error: unknown type name 'irq_flow_handler_t' Fix this by: 1) Avoid including leon.h in prom_commen.h (not needed) 2) Include irq.h in leon.h to avoid the missing symbol error Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32: remove unused variable in head_32.SSam Ravnborg2012-05-29
| | | | | | | | | | | | | | It was assigned, but never referenced later. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32,leon: fix leon bootupSam Ravnborg2012-05-29
| | | | | | | | | | | | | | | | | | | | | | | | | | head_32.S failed to set cputypval for leon, causing boot to fail. The boot failed because we failed to recognize this was a LEON cpu so we did not preoperly run-time patch the the kernel. This resulted in an early crash. Reported-by: Daniel Hellstrom <daniel@gaisler.com> Tested-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Konrad Eisele <konrad@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32: Export leon_dma_ops to modules.David S. Miller2012-05-28
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | sparc32: support leon + sun in dma_make_coherent()Sam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | No need for two implementations - we check the cpu model. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: always support leon in ioportSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | Unconditially define pci32_dma_ops as this is used for leon. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: always include leon_pmc in buildSam Ravnborg2012-05-28
| | | | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: refactor cpu_idle()Sam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | With the removal of sun4c we can use the same cpu_idle() implementation on UP and SMP. This also fix it so we use the same version independent on LEON enabled or not. V2: Fixed whitespace issue pointed out by Josip Rodin. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Josip Rodin <joy@entuzijast.net> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: introduce support for run-time patching for all shared assembler codeSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | All users of MMUREGS ASI in kernel/ now uses run-time patching. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: fix section mismatch warningSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following warning: WARNING: arch/sparc/kernel/built-in.o(.cpuinit.text+0x9f4): Section mismatch in reference from the function leon_callin() to the function .init.text:leon_configure_cache_smp() The function __cpuinit leon_callin() references a function __init leon_configure_cache_smp(). If leon_configure_cache_smp is only used by leon_callin then annotate leon_configure_cache_smp with a matching annotation. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: always include leon_smp + leon_mm in buildSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | Fix-up leon specific assembler to use ASI_LEON_MMUREGS Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: always include leon_kernel in buildSam Ravnborg2012-05-28
| | | | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32,leon: clean up leon.hSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | | | - Drop unused stuff accumulated over time - Drop non-leon stuff - Include almost all of the header unconditionally Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: handle leon in cpu.cSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | A few hardcoded constant were replaced by symbolic versions to improve readability Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: handle leon in irq_32.cSam Ravnborg2012-05-28
| | | | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: add support for run-time patching of leon/sun single instructionsSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | This will be used to handle that MMUREGS has different ASI for SUN and LEON. This is the infrastructure only - users will come later. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: introduce sparc32_start_kernel called from head_32.SSam Ravnborg2012-05-28
| | | | | | | | | | | | This gives us a C hook before we call start_kernel() Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | sparc32: implement proper LEON support in head_32 (after highmem)Sam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | We use the compatibility property to determine the sun models. For leon we use psr.impl and ignore the result of the getprops call. Include a hack to allow build as the support code is not yet converted. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: implement proper LEON support in head_32 (before highmem)Sam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | | | | | Use PSR to check if the CPU is LEON and jump to LEON specific code in this case. Added a few constants to psr.h to increase readability. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Konrad Eisele <konrad@gaisler.com>
* | sparc32: string and whitespace cleanup in head_32.SSam Ravnborg2012-05-28
| | | | | | | | | | | | | | | | | | A few strings have been adopted to show more relevant info. Julian Calaby <julian.calaby@gmail.com> pointed out one that I would otherwise have missed. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | sparc64: Fix several bugs in quad floating point emulation.David S. Miller2012-05-25
|/ | | | | | | | | | | | | | | | UltraSPARC-T2 and later do not use the fp_exception_other trap and do not set the floating point trap type field in the %fsr at all when you try to execute an unimplemented FPU operation. Instead, it uses the illegal_instruction trap and it leaves the floating point trap type field clear. So we should not validate the %fsr trap type field when do_mathemu() is invoked from the illegal instruction handler. Also, the floating point trap type field is 3 bits, not 4 bits. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-05-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull first series of signal handling cleanups from Al Viro: "This is just the first part of the queue (about a half of it); assorted fixes all over the place in signal handling. This one ends with all sigsuspend() implementations switched to generic one (->saved_sigmask-based). With this, a bunch of assorted old buglets are fixed and most of the missing bits of NOTIFY_RESUME hookup are in place. Two more fixes sit in arm and um trees respectively, and there's a couple of broken ones that need obvious fixes - parisc and avr32 check TIF_NOTIFY_RESUME only on one of two codepaths; fixes for that will happen in the next series" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (55 commits) unicore32: if there's no handler we need to restore sigmask, syscall or no syscall xtensa: add handling of TIF_NOTIFY_RESUME microblaze: drop 'oldset' argument of do_notify_resume() microblaze: handle TIF_NOTIFY_RESUME score: add handling of NOTIFY_RESUME to do_notify_resume() m68k: add TIF_NOTIFY_RESUME and handle it. sparc: kill ancient comment in sparc_sigaction() h8300: missing checks of __get_user()/__put_user() return values frv: missing checks of __get_user()/__put_user() return values cris: missing checks of __get_user()/__put_user() return values powerpc: missing checks of __get_user()/__put_user() return values sh: missing checks of __get_user()/__put_user() return values sparc: missing checks of __get_user()/__put_user() return values avr32: struct old_sigaction is never used m32r: struct old_sigaction is never used xtensa: xtensa_sigaction doesn't exist alpha: tidy signal delivery up score: don't open-code force_sigsegv() cris: don't open-code force_sigsegv() blackfin: don't open-code force_sigsegv() ...
| * sparc: kill ancient comment in sparc_sigaction()Al Viro2012-05-21
| | | | | | | | | | | | | | It used to be true, until 2.1.78 (14 years ago) when we switched to do_sigaction()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * sparc: missing checks of __get_user()/__put_user() return valuesAl Viro2012-05-21
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * new helper: sigsuspend()Al Viro2012-05-21
| | | | | | | | | | | | | | | | | | guts of saved_sigmask-based sigsuspend/rt_sigsuspend. Takes kernel sigset_t *. Open-coded instances replaced with calling it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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