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2007-12-13[SPARC64]: Fix two kernel linear mapping setup bugs.David S. Miller
This was caught and identified by Greg Onufer. Since we setup the 256M/4M bitmap table after taking over the trap table, it's possible for some 4M mapping to get loaded in the TLB beforhand which later will be 256M mappings. This can cause illegal TLB multiple-match conditions. Fix this by setting up the bitmap before we take over the trap table. Next, __flush_tlb_all() was not doing anything on hypervisor platforms. Fix by adding sun4v_mmu_demap_all() and calling it. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-12[SPARC64]: Fix endless loop in cheetah_xcall_deliver().David S. Miller
We need to mask out the proper bits when testing the dispatch status register else we can see unrelated NACK bits from previous cross call sends. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-07[SPARC64]: Fix memory controller register access when non-SMP.David S. Miller
get_cpu() always returns zero on non-SMP builds, but we really want the physical cpu number in this code in order to do the right thing. Based upon a non-SMP kernel boot failure report from Bernd Zeimetz. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05[SPARC64]: check for possible NULL pointer dereferenceCyrill Gorcunov
This patch adds checking for possible NULL pointer dereference if of_find_property() failed. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05[SPARC64]: Add missing "space"Joe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05[SPARC64]: Add missing pci_dev_putJulia Lawall
There should be a pci_dev_put when breaking out of a loop that iterates over calls to pci_get_device and similar functions. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-12-05[SPARC64]: Missing mdesc_release() in ldc_init().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-06[SPARC]: Remove duplicate includes.Lucas Woods
Signed-off-by: Lucas Woods <woodzy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-31[SPARC64]: Fix build with CONFIG_NET disabled.David S. Miller
We can't export verify_compat_iovec when CONFIG_NET is disabled, and consequently the Solaris compat module should also depend upon CONFIG_NET. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-31[SPARC64]: Fix bogus '&' conditinal in set_rtc_mmss().David S. Miller
We're using '&' instead of '&&'. Noticed by Roel Kluin. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-27[SPARC64]: __inline__ --> inlineDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-25Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)
2007-10-24More SG build fixesDavid Miller
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-24SG build fixDavid Miller
Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
2007-10-23[SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)Chris Wright
Looks like the MAP_FIXED case is using the wrong address hint. I'd expect the comment "don't mess with it" means pass the request straight on through, not change the address requested to -ENOMEM. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-23sparc64: zero out dma_lengthFUJITA Tomonori
zero out dma_length in the entry immediately following the last mapped entry for unmap_sg. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: ARRAY_SIZE() cleanup [SPARC64]: small Makefile cleanups [SPARC64]: Stop using __do_IRQ(). [SPARC64]: Update defconfig.
2007-10-22[SPARC64]: ARRAY_SIZE() cleanupAlejandro Martinez Ruiz
Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-22Update arch/ to use sg helpersJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22[SPARC64]: small Makefile cleanupsSam Ravnborg
A few trivial Makefile cleanups - dependencipes in head.o was all wrong - deleted - CMODEL_CFLAG was not used anywhere - NEW_GCC was then not used outside sparc64/Makefe - do not export it - FIXME seems not appropriate - all other put oprofile in drivers-y too - No reason to do -I. (and it still builds) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-22[SPARC64]: Stop using __do_IRQ().David S. Miller
Invoke the desc->handle_irq directly in the top-level dispatch, just like other sophisticated ports. This will allow us to decrease the cost of the MSI queue dispatch. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-19Use helpers to obtain task pid in printks (arch code)Alexey Dobriyan
One of the easiest things to isolate is the pid printed in kernel log. There was a patch, that made this for arch-independent code, this one makes so for arch/xxx files. It took some time to cross-compile it, but hopefully these are all the printks in arch code. Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19pid namespaces: changes to show virtual ids to userPavel Emelyanov
This is the largest patch in the set. Make all (I hope) the places where the pid is shown to or get from user operate on the virtual pids. The idea is: - all in-kernel data structures must store either struct pid itself or the pid's global nr, obtained with pid_nr() call; - when seeking the task from kernel code with the stored id one should use find_task_by_pid() call that works with global pids; - when showing pid's numerical value to the user the virtual one should be used, but however when one shows task's pid outside this task's namespace the global one is to be used; - when getting the pid from userspace one need to consider this as the virtual one and use appropriate task/pid-searching functions. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: nuther build fix] [akpm@linux-foundation.org: yet nuther build fix] [akpm@linux-foundation.org: remove unneeded casts] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Paul Menage <menage@google.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17[SPARC/64]: Consolidate of_register_driverStephen Rothwell
Also of_unregister_driver. These will be shortly also used by the PowerPC code. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17[SPARC64]: Check of_get_property() return in pci_determine_mem_io_space().David S. Miller
If the PCI controller lacks the 'ranges' property nothing is going to work. Noticed by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17[SPARC64]: Fix boot failures due to bootmem.David S. Miller
Do not use *alloc_bootmem_low*(), because ARCH_LOW_ADDRESS_LIMIT is 4GB and this results in boot failures if all of the physical memory in the machine is above 4GB. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: [SCSI] Remove full sg table memset() [SCSI] ide-scsi: remove usage of sg_last() Fix loop terminating conditions in fill_sg(). [BLOCK] Clear sg entry before filling in blk_rq_map_sg() IA64: iommu uses sg_next with an invalid sg element cciss: disable DMA refetch on Smart Array P600 swiotlb: fix map_sg failure handling SPARC64: fix iommu sg chaining [SCSI] ide-scsi: use scsi_sg_count() instead of ->use_sg
2007-10-17remove include/asm-*/ipc.hAdrian Bunk
All asm/ipc.h files do only #include <asm-generic/ipc.h>. This patch therefore removes all include/asm-*/ipc.h files and moves the contents of include/asm-generic/ipc.h to include/linux/ipc.h. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17core_pattern: ignore RLIMIT_CORE if core_pattern is a pipeNeil Horman
For some time /proc/sys/kernel/core_pattern has been able to set its output destination as a pipe, allowing a user space helper to receive and intellegently process a core. This infrastructure however has some shortcommings which can be enhanced. Specifically: 1) The coredump code in the kernel should ignore RLIMIT_CORE limitation when core_pattern is a pipe, since file system resources are not being consumed in this case, unless the user application wishes to save the core, at which point the app is restricted by usual file system limits and restrictions. 2) The core_pattern code should be able to parse and pass options to the user space helper as an argv array. The real core limit of the uid of the crashing proces should also be passable to the user space helper (since it is overridden to zero when called). 3) Some miscellaneous bugs need to be cleaned up (specifically the recognition of a recursive core dump, should the user mode helper itself crash. Also, the core dump code in the kernel should not wait for the user mode helper to exit, since the same context is responsible for writing to the pipe, and a read of the pipe by the user mode helper will result in a deadlock. This patch: Remove the check of RLIMIT_CORE if core_pattern is a pipe. In the event that core_pattern is a pipe, the entire core will be fed to the user mode helper. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Cc: <martin.pitt@ubuntu.com> Cc: <wwoods@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Use list_head in binfmt handlingAlexey Dobriyan
Switch single-linked binfmt formats list to usual list_head's. This leads to one-liners in register_binfmt() and unregister_binfmt(). The downside is one pointer more in struct linux_binfmt. This is not a problem, since the set of registered binfmts on typical box is very small -- (ELF + something distro enabled for you). Test-booted, played with executable .txt files, modprobe/rmmod binfmt_misc. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Fix loop terminating conditions in fill_sg().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-17SPARC64: fix iommu sg chainingFUJITA Tomonori
Commit 2c941a204070ab32d92d40318a3196a7fb994c00 looks incomplete. The helper functions like prepare_sg() need to support sg chaining too. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: (63 commits) Fix memory leak in dm-crypt SPARC64: sg chaining support SPARC: sg chaining support PPC: sg chaining support PS3: sg chaining support IA64: sg chaining support x86-64: enable sg chaining x86-64: update pci-gart iommu to sg helpers x86-64: update nommu to sg helpers x86-64: update calgary iommu to sg helpers swiotlb: sg chaining support i386: enable sg chaining i386 dma_map_sg: convert to using sg helpers mmc: need to zero sglist on init Panic in blk_rq_map_sg() from CCISS driver remove sglist_len remove blk_queue_max_phys_segments in libata revert sg segment size ifdefs Fixup u14-34f ENABLE_SG_CHAINING qla1280: enable use_sg_chaining option ...
2007-10-16kprobes: support kretprobe blacklistMasami Hiramatsu
Introduce architecture dependent kretprobe blacklists to prohibit users from inserting return probes on the function in which kprobes can be inserted but kretprobes can not. This patch also removes "__kprobes" mark from "__switch_to" on x86_64 and registers "__switch_to" to the blacklist on x86-64, because that mark is to prohibit user from inserting only kretprobe. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16SPARC64: SPARSEMEM_VMEMMAP supportDavid Miller
[apw@shadowen.org: style fixups] [apw@shadowen.org: vmemmap sparc64: convert to new config options] Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16Convert cpu_sibling_map to be a per cpu variableMike Travis
Convert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu variable. This saves sizeof(cpumask_t) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16SPARC64: sg chaining supportJens Axboe
This updates the sparc64 iommu/pci dma mappers to sg chaining. Acked-by: David S. Miller <davem@davemloft.net> Later updated to newer kernel with unified sparc64 iommu sg handling. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-13[SPARC64]: virt_to_real_irq_table --> virt_irq_tableDavid S. Miller
It no longer translates to "real irqs" (aka. INO buckets) so reflect that by using a simpler name for it. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: virt_irq --> bucket mapping no longer necessaryDavid S. Miller
We used to need this to compute virt_irq --> ino, but that is no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Kill ugly __bucket() macro.David S. Miller
All the users go through virt_irq_to_bucket() and essentially want to go from a virt_irq to an INO, but we have a way to do that already via virt_to_real_irq_table[].dev_ino. This also allows us to kill both virt_to_real_irq() and virt_irq_to_bucket(). Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Kill ugly __irq_ino() macro.David S. Miller
We have a place to stick INO information in the virt_to_real_irq_table[], which is currently only used for VIRQs. And that is readily accessible from the one __irq_ino() call site. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Only use bypass accesses to INO buckets.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Use sun4v VIRQ interfaces as intended.David S. Miller
We were simply concatenating the devhandle and devino and using that as the cookie, which defeats the entire purpose of the VIRQ hypervisor interfaces. Now that we use physical addresses for the INO buckets, we can allocate them dynamically for VIRQs and encode the cookies as ~__pa(bucket). This allows us to test for and decode the cookie with a simple: brlz $reg1, 1f xnor $reg1, %g0, $reg2 sequence. This works because bit 64 is never set in traditional INO vectors, and it is also never set in a physical address. So xnor'ing the physical address of the bucket always gives us a negative number, and thus a unique condition we can test cheaply. Inspired by ideas from Greg Onufer. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Allocate ivector_table dynamically.David S. Miller
Shrinks kernel by 16K compared to before the IVEC physical address changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Access ivector_table[] using physical addresses.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Make IVEC pointers 64-bit.David S. Miller
Currently we chain IVEC entries using 32-bit "pointers" because we know that the ivector_table is in the main kernel image, thus below 4GB. This uses proper 64-bit pointers instead. Whilst this bloats up the kernel image size, this sets the infrastructure necessary to significantly shrink the kernel size by using physical addresses and dynamically allocating the ivector table. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Kill pci_memspace_mask.David S. Miller
It is totally unnecessary as the needed information is properly encoded in the resources. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Consolidate MSI support code.David S. Miller
This also makes us use the MSI queues correctly. Each MSI queue is serviced by a normal sun4u/sun4v INO interrupt handler. This handler runs the MSI queue and dispatches the virtual interrupts indicated by arriving MSIs in that MSI queue. All of the common logic is placed in pci_msi.c, with callbacks to handle the PCI controller specific aspects of the operations. This common infrastructure will make it much easier to add MSG support. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC/64]: Move of_platform_driver initialisations: arch/sparc{,64}.Stephen Rothwell
We no longer initialise the name field of the of_platform_driver, but use the name field of the embedded device_driver's name field instead. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-13[SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes.David S. Miller
Thanks to Tom Callaway for the excellent bug report and test case. sys_ipc() has several problems, most to due with semaphore call handling: 1) 'err' return should be a 'long' 2) "union semun" is passed in a register on 64-bit compared to 32-bit which provides it on the stack and therefore by reference 3) Second and third arguments to SEMCTL are swapped compared to 32-bit. Signed-off-by: David S. Miller <davem@davemloft.net>
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