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2007-07-16[SPARC64]: Export powerd facilities for external entities.David S. Miller
Besides the existing usage for power-button interrupts, we'll want to make use of this code for domain-services where the LDOM manager can send reboot requests to the guest node. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-16[SPARC64]: Assorted LDC bug cures.David S. Miller
1) LDC_MODE_RELIABLE is deprecated an unused by anything, plus it and LDC_MODE_STREAM were mis-numbered. 2) read_stream() should try to read as much as possible into the per-LDC stream buffer area, so do not trim the read_nonraw() length by the caller's size parameter. 3) Send data ACKs when necessary in read_nonraw(). 4) In read_nonraw() when we get a pure ACK, advance the RX head unconditionally past it. 5) Provide the ACKID field in the ldcdgb() packet dump in read_nonraw(). This helps debugging stream mode LDC channel problems. 6) Decrease verbosity of rx_data_wait() so that it is more useful. A debugging message each loop iteration is too much. 7) In process_data_ack() stop the loop checking when we hit lp->tx_tail not lp->tx_head. 8) Set the seqid field properly in send_data_nack(). Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-16[SPARC64]: Add LDOM virtual channel driver and VIO device layer.David S. Miller
Virtual devices on Sun Logical Domains are built on top of a virtual channel framework. This, with help of hypervisor interfaces, provides a link layer protocol with basic handshaking over which virtual device clients and servers communicate. Built on top of this is a VIO device protocol which has it's own handshaking and message types. At this layer attributes are exchanged (disk size, network device addresses, etc.) descriptor rings are registered, and data transfers are triggers and replied to. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-11PCI: remove pci_dac_dma_... APIsJan Beulich
Based on replies to a respective query, remove the pci_dac_dma_...() APIs (except for pci_dac_dma_supported() on Alpha, where this function is used in non-DAC PCI DMA code). Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Cc: Jesse Barnes <jesse.barnes@intel.com> Cc: Christoph Hellwig <hch@infradead.org> Acked-by: David Miller <davem@davemloft.net> Cc: Jeff Garzik <jeff@garzik.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11PCI: Use a weak symbol for the empty version of pcibios_add_platform_entries()Michael Ellerman
I'm not sure if this is going to fly, weak symbols work on the compilers I'm using, but whether they work for all of the affected architectures I can't say. I've cc'ed as many arch maintainers/lists as I could find. But assuming they do, we can use a weak empty definition of pcibios_add_platform_entries() to avoid having an empty definition on every arch. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-06-28[SPARC64]: Add linux/pagemap.h to asm/tlb.hAlexey Dobriyan
As seen on sparc64-allnoconfig: CC arch/sparc64/mm/tlb.o In file included from arch/sparc64/mm/tlb.c:19: include/asm/tlb.h: In function 'tlb_flush_mmu': include/asm/tlb.h:60: warning: implicit declaration of function 'release_pages' include/asm/tlb.h: In function 'tlb_remove_page': include/asm/tlb.h:92: warning: implicit declaration of function 'page_cache_release' Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-26[SPARC64]: Add irqs to mdesc_node.David S. Miller
Will be used to store translated LDC rx-ino and tx-ino. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-13[SPARC64]: Fix args to sun4v_ldc_revoke().David S. Miller
First argument is LDC channel ID, then mapping cookie, then the MTE revoke cookie. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-13[SPARC64]: Really fix parport.David S. Miller
We were passing a "struct pci_dev *" instead of a "struct device *" to the parport registry routines. No wonder things exploded. The ebus_bus_type hacks can be backed out from asm-sparc64/dma-mapping.h, those were wrong. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-13[SPARC64]: Wire up cookie based sun4v interrupt registry.David S. Miller
This will be used for logical domain channel interrupts. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Fill in gaps in non-PCI dma_*() NOP implementation.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Fix {mc,smt}_capable().David S. Miller
It's not just sun4v hypervisor platforms that should return true for this, sun4u with UltraSPARC-IV should return true too. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Proper multi-core scheduling support.David S. Miller
The scheduling domain hierarchy is: all cpus --> cpus that share an instruction cache --> cpus that share an integer execution unit Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-04[SPARC64]: Provide mmu statistics via sysfs.David Miller
If the system supports hypervisor based statistics, allow them to be fetched, enabled, and disabled via sysfs. Enable and disable via the boolean: /sys/devices/systems/cpu/cpuN/mmustat_enable Statistic values are provided under: /sys/devices/systems/cpu/cpuN/mmu_status/ Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31[SPARC64]: Add missing NCS and SVC hypervisor interfaces.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Fill holes in hypervisor APIs and fix KTSB registry.David S. Miller
Several interfaces were missing and others misnumbered or improperly documented. Also, make sure to check the return value when registering the kernel TSBs with the hypervisor. This helped to find the 4MB kernel TSB alignment bug fixed in a previous changeset. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Fix two bugs wrt. kernel 4MB TSB.David S. Miller
1) The TSB lookup was not using the correct hash mask. 2) It was not aligned on a boundary equal to it's size, which is required by the sun4v Hypervisor. wasn't having it's return value checked, and that bug will be fixed up as well in a subsequent changeset. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Eliminate NR_CPUS limitations.David S. Miller
Cheetah systems can have cpuids as large as 1023, although physical systems don't have that many cpus. Only three limitations existed in the kernel preventing arbitrary NR_CPUS values: 1) dcache dirty cpu state stored in page->flags on D-cache aliasing platforms. With some build time calculations and some build-time BUG checks on page->flags layout, this one was easily solved. 2) The cheetah XCALL delivery code could only handle a cpumask with up to 32 cpus set. Some simple looping logic clears that up too. 3) thread_info->cpu was a u8, easily changed to a u16. There are a few spots in the kernel that still put NR_CPUS sized arrays on the kernel stack, but that's not a sparc64 specific problem. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Use machine description and OBP properly for cpu probing.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Report proper system soft state to the hypervisor.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29[SPARC64]: Kill unused DIE_PAGE_FAULT enum value.Christoph Hellwig
sparc64 got rid of the pagefault notifiers, so the enum value for them can go away aswell. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-15[SPARC64]: Add hypervisor API negotiation and fix console bugs.David S. Miller
Hypervisor interfaces need to be negotiated in order to use some API calls reliably. So add a small set of interfaces to request API versions and query current settings. This allows us to fix some bugs in the hypervisor console: 1) If we can negotiate API group CORE of at least major 1 minor 1 we can use con_read and con_write which can improve console performance quite a bit. 2) When we do a console write request, we should hold the spinlock around the whole request, not a byte at a time. What would happen is that it's easy for output from different cpus to get mixed with each other. 3) Use consistent udelay() based polling, udelay(1) each loop with a limit of 1000 polls to handle stuck hypervisor console. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-14[SPARC64]: Accept ebus_bus_type for generic DMA ops.David S. Miller
Based upon a bug report by Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-11[SPARC]: Wire up signalfd/timerfd/eventfd syscalls.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-11Consolidate asm/poll.hStephen Rothwell
These files are almost all the same. This patch could be made even simpler if we don't mind POLLREMOVE turning up in a few architectures that didn't have it previously (which should be OK as POLLREMOVE is not used anywhere in the current tree). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-10Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Use alloc_pci_dev() in PCI bus probes. [SPARC64]: Bump PROMINTR_MAX to 32. [SPARC64]: Fix recursion in PROM tree building. [SERIAL] sunzilog: Interrupt enable before ISR handler installed [SPARC64] PCI: Consolidate PCI access code into pci_common.c
2007-05-10[SPARC64]: Bump PROMINTR_MAX to 32.David S. Miller
Some devices have more than 15 which was the previous setting. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-09Remove hardcoding of hard_smp_processor_id on UP systemsFernando Luis Vazquez Cao
With the advent of kdump, the assumption that the boot CPU when booting an UP kernel is always the CPU with a particular hardware ID (often 0) (usually referred to as BSP on some architectures) is not valid anymore. The reason being that the dump capture kernel boots on the crashed CPU (the CPU that invoked crash_kexec), which may be or may not be that particular CPU. Move definition of hard_smp_processor_id for the UP case to architecture-specific code ("asm/smp.h") where it belongs, so that each architecture can provide its own implementation. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Cc: "Luck, Tony" <tony.luck@intel.com> Acked-by: Andi Kleen <ak@suse.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08[SPARC64]: Optimize fault kprobe handling just like powerpc.David S. Miller
And eliminate DIE_GPF while we're at it. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC]: Wire up utimensat syscall.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64]: Kill asm-sparc64/pbm.hDavid S. Miller
Everything it contains can be hidden in pci_impl.h Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64]: Move index info pci_pbm_info.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64]: Move {setup,teardown}_msi_irq into pci_pbm_info.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64]: Move pci_ops into pci_pbm_info.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64] PCI: Use root list of pbm's instead of pci_controller_info'sDavid S. Miller
The idea is to move more and more things into the pbm, with the eventual goal of eliminating the pci_controller_info entirely as there really isn't any need for it. This stage of the transformations requires some reworking of the PCI error interrupt handling. It might be tricky to get rid of the pci_controller_info parenting for a few reasons: 1) When we get an uncorrectable or correctable error we want to interrogate the IOMMU and streaming cache of both PBMs for error status. These errors come from the UPA front-end which is shared between the two PBM PCI bus segments. Historically speaking this is why I choose the datastructure hierarchy of pci_controller_info-->pci_pbm_info 2) The probing does a portid/devhandle match to look for the 'other' pbm, but this is entirely an artifact and can be eliminated trivially. What we could do to solve #1 is to have a "buddy" pointer from one pbm to another. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64] PCI: Kill PROM_PCIRNG_MAX and PROM_PCIIMAP_MAX.David S. Miller
They are totally unused. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08[SPARC64] PCI: Use common routine to fetch PBM properties.David S. Miller
Namely bus-range and ino-bitmap. This allows us also to eliminate pci_controller_info's pci_{first,last}_busno fields as only the pbm ones are used now. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08Remove tas()Jeff Dike
tas() has no users, so get rid of it. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: <linux-arch@vger.kernel.org> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08local_t: sparc64 cleanupMathieu Desnoyers
sparc64 local_t cleanup : simply use asm-generic/local.h. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular ↵Mathieu Desnoyers
dependency atomic_add_unless as inline. Remove system.h atomic.h circular dependency. I agree (with Andi Kleen) this typeof is not needed and more error prone. All the original atomic.h code that uses cmpxchg (which includes the atomic_add_unless) uses defines instead of inline functions, probably to circumvent a circular dependency between system.h and atomic.h on powerpc (which my patch addresses). Therefore, it makes sense to use inline functions that will provide type checking. atomic_add_unless as inline. Remove system.h atomic.h circular dependency. Digging into the FRV architecture shows me that it is also affected by such a circular dependency. Here is the diff applying this against the rest of my atomic.h patches. It applies over the atomic.h standardization patches. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08atomic.h: add atomic64 cmpxchg, xchg and add_unless to sparc64Mathieu Desnoyers
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08consolidate asm/const.h to linux/const.hRandy Dunlap
Make a global linux/const.h header file instead of having multiple, per-arch files, and convert current users of asm/const.h to use linux/const.h. Built on x86_64 and sparc64. [akpm@linux-foundation.org: fix include/asm-x86_64/Kbuild] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08move die notifier handling to common codeChristoph Hellwig
This patch moves the die notifier handling to common code. Previous various architectures had exactly the same code for it. Note that the new code is compiled unconditionally, this should be understood as an appel to the other architecture maintainer to implement support for it aswell (aka sprinkling a notify_die or two in the proper place) arm had a notifiy_die that did something totally different, I renamed it to arm_notify_die as part of the patch and made it static to the file it's declared and used at. avr32 used to pass slightly less information through this interface and I brought it into line with the other architectures. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix vmalloc_sync_all bustage] [bryan.wu@analog.com: fix vmalloc_sync_all in nommu] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: <linux-arch@vger.kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SERIAL] sunsu: Fix section mismatch warnings. [SPARC64]: pgtable_cache_init() should be __init. [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/prom.c [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/pci.c [SPARC64]: Fix section mismatch warnings in arch/sparc64/kernel/console.c [MM]: sparse_init() should be __init. [SPARC64]: Update defconfig. [VIDEO]: Add Sun XVR-2500 framebuffer driver. [VIDEO]: Add Sun XVR-500 framebuffer driver. [SPARC64]: SUN4U PCI-E controller support. [SPARC]: Fix comment typo in smp4m_blackbox_current(). [SCSI] SUNESP: sun_esp.c needs linux/delay.h Fix up conflict in arch/sparc64/mm/init.c manually due to removal of pgtable_cache_init() through the -mm patches (even though that patch was also by David ;) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Quicklist support for sparc64David Miller
I ported this to sparc64 as per the patch below, tested on UP SunBlade1500 and 24 cpu Niagara T1000. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-06[SPARC64]: SUN4U PCI-E controller support.David S. Miller
Some minor refactoring in the generic code was necessary for this: 1) This controller requires 8-byte access to the interrupt map and clear register. They are 64-bits on all the other SBUS and PCI controllers anyways, so this was easy to cure. 2) The IMAP register has a different layout and some bits that we need to preserve, so use a read/modify/write when making changes to the IMAP register in generic code. 3) Flushing the entire IOMMU TLB is best done with a single write to a register on this PCI controller, add a iommu->iommu_flushinv for this. Still lacks MSI support, that will come later. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-05Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits) [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall [PATCH] i386: type may be unused [PATCH] i386: Some additional chipset register values validation. [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split. [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu [PATCH] i386: white space fixes in i387.h [PATCH] i386: Drop noisy e820 debugging printks [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems [PATCH] x86-64: Share identical video.S between i386 and x86-64 [PATCH] x86-64: Remove CONFIG_REORDER [PATCH] x86-64: Print type and size correctly for unknown compat ioctls [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0) [PATCH] i386: Little cleanups in smpboot.c [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible [PATCH] i386: Add X86_FEATURE_RDTSCP [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386 [PATCH] i386: Implement alternative_io for i386 ... Fix up trivial conflict in include/linux/highmem.h manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02PCI: scatterlist.h needs types.hJean Delvare
Most architectures' scatterlist.h use the type dma_addr_t, but omit to include <asm/types.h> which defines it. This could lead to build failures, so let's add the missing includes. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destructionJeremy Fitzhardinge
Add hooks to allow a paravirt implementation to track the lifetime of an mm. Paravirtualization requires three hooks, but only two are needed in common code. They are: arch_dup_mmap, which is called when a new mmap is created at fork arch_exit_mmap, which is called when the last process reference to an mm is dropped, which typically happens on exit and exec. The third hook is activate_mm, which is called from the arch-specific activate_mm() macro/function, and so doesn't need stub versions for other architectures. It's called when an mm is first used. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: linux-arch@vger.kernel.org Cc: James Bottomley <James.Bottomley@SteelEye.com> Acked-by: Ingo Molnar <mingo@elte.hu>
2007-05-02[PATCH] x86-64: Account for module percpu space separately from kernel percpuJeremy Fitzhardinge
Rather than using a single constant PERCPU_ENOUGH_ROOM, compute it as the sum of kernel_percpu + PERCPU_MODULE_RESERVE. This is now common to all architectures; if an architecture wants to set PERCPU_ENOUGH_ROOM to something special, then it may do so (ia64 is the only one which does). Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Andi Kleen <ak@suse.de>