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* xen: fix shared irq device passthroughKonrad Rzeszutek Wilk2010-10-18
| | | | | | | | | | | | | | | | | | | | In driver/xen/events.c, whether bind_pirq is shareable or not is determined by desc->action is NULL or not. But in __setup_irq, startup(irq) is invoked before desc->action is assigned with new action. So desc->action in startup_irq is always NULL, and bind_pirq is always not shareable. This results in pt_irq_create_bind failure when passthrough a device which shares irq to other devices. This patch doesn't use probing_irq to determine if pirq is shareable or not, instead set shareable flag in irq_info according to trigger mode in xen_allocate_pirq. Set level triggered interrupts shareable. Thus use this flag to set bind_pirq flag accordingly. [v2: arch/x86/xen/pci.c no more, so file skipped] Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: Provide a variant of xen_poll_irq with timeout.Konrad Rzeszutek Wilk2010-10-18
| | | | | | | | | The 'xen_poll_irq_timeout' provides a method to pass in the poll timeout for IRQs if requested. We also export those two poll functions as Xen PCI fronted uses them. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
* xen: set pirq name to something useful.Gerd Hoffmann2010-10-18
| | | | | | | | | | | | Impact: cleanup Make pirq show useful information in /proc/interrupts [v2: Removed the parts for arch/x86/xen/pci.c ] Signed-off-by: Gerd Hoffmann <kraxel@xeni.home.kraxel.org> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: implement pirq type event channelsJeremy Fitzhardinge2010-10-18
| | | | | | | | | | | | | | | | | | | | A privileged PV Xen domain can get direct access to hardware. In order for this to be useful, it must be able to get hardware interrupts. Being a PV Xen domain, all interrupts are delivered as event channels. PIRQ event channels are bound to a pirq number and an interrupt vector. When a IO APIC raises a hardware interrupt on that vector, it is delivered as an event channel, which we can deliver to the appropriate device driver(s). This patch simply implements the infrastructure for dealing with pirq event channels. [ Impact: integrate hardware interrupts into Xen's event scheme ] Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* genirq: Remove the now unused sparse irq leftoversThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | The move_irq_desc() function was only used due to the problem that the allocator did not free the old descriptors. So the descriptors had to be moved in create_irq_nr(). That's history. The code would have never been able to move active interrupt descriptors on affinity settings. That can be done in a completely different way w/o all this horror. Remove all of it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* genirq: Sanitize dynamic irq handlingThomas Gleixner2010-10-12
| | | | | | | | Use the cleanup functions of the dynamic allocator. No need to have separate implementations. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* genirq: Remove arch_init_chip_data()Thomas Gleixner2010-10-12
| | | | | | | This function should have not been there in the first place. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* genirq: Remove irq_2_iommuThomas Gleixner2010-10-12
| | | | | | | | | | | irq_2_iommu is now in the x86 code where it belongs. Remove all leftovers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86: Speed up the irq_remapped check in hot pathesThomas Gleixner2010-10-12
| | | | | | | | | | | | irq_2_iommu is in struct irq_cfg, so we can do the irq_remapped check based on irq_cfg instead of going through a lookup function. That's especially interesting in the eoi_ioapic_irq() hotpath. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* x86: Embedd irq_2_iommu into irq_cfgThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | That interrupt remapping code is x86 specific and tied to the io_apic code. No need for separate allocator functions in the interrupt remapping code. This allows to simplify the code and irq_2_iommu is small (13 bytes on 64bit) so it's not a real problem even if interrupt remapping is runtime disabled. If it's compile time disabled the impact is zero. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* pci: intr_remap: Remove unused functionsThomas Gleixner2010-10-12
| | | | | | | | | | No users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* ht: Convert to new irq_chip functionsThomas Gleixner2010-10-12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* dmar: Convert to new irq chip functionsThomas Gleixner2010-10-12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: David Woodhouse <dwmw2@infradead.org>
* pci: Cleanup the irq_desc mess in msiThomas Gleixner2010-10-12
| | | | | | | | | | | Handing down irq_desc to msi just so that msi can access irq_desc.irq_data.msi_desc is a pretty stupid idea. The calling code can hand down a pointer to msi_desc so msi code does not need to know about the irq descriptor at all. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* pci: Convert msi to new irq_chip functionsThomas Gleixner2010-10-12
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Tony Luck <tony.luck@intel.com> Cc: Russell King <linux@arm.linux.org.uk>
* Merge branch 'x86/urgent' of into irq/sparseirqThomas Gleixner2010-10-12
|\ | | | | | | | | | | Reason: Pull in the latest io_apic bugfixes Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-09-28
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) tcp: Fix >4GB writes on 64-bit. net/9p: Mount only matching virtio channels de2104x: fix ethtool tproxy: check for transparent flag in ip_route_newports ipv6: add IPv6 to neighbour table overflow warning tcp: fix TSO FACK loss marking in tcp_mark_head_lost 3c59x: fix regression from patch "Add ethtool WOL support" ipv6: add a missing unregister_pernet_subsys call s390: use free_netdev(netdev) instead of kfree() sgiseeq: use free_netdev(netdev) instead of kfree() rionet: use free_netdev(netdev) instead of kfree() ibm_newemac: use free_netdev(netdev) instead of kfree() smsc911x: Add MODULE_ALIAS() net: reset skb queue mapping when rx'ing over tunnel br2684: fix scheduling while atomic de2104x: fix TP link detection de2104x: fix power management de2104x: disable autonegotiation on broken hardware net: fix a lockdep splat e1000e: 82579 do not gate auto config of PHY by hardware during nominal use ...
| | * tcp: Fix >4GB writes on 64-bit.David S. Miller2010-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes kernel bugzilla #16603 tcp_sendmsg() truncates iov_len to an 'int' which a 4GB write to write zero bytes, for example. There is also the problem higher up of how verify_iovec() works. It wants to prevent the total length from looking like an error return value. However it does this using 'int', but syscalls return 'long' (and thus signed 64-bit on 64-bit machines). So it could trigger false-positives on 64-bit as written. So fix it to use 'long'. Reported-by: Olaf Bonorden <bono@onlinehome.de> Reported-by: Daniel Büse <dbuese@gmx.de> Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * tproxy: check for transparent flag in ip_route_newportsUlrich Weber2010-09-27
| | | | | | | | | | | | | | | | | | | | | as done in ip_route_connect() Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * ipv6: add a missing unregister_pernet_subsys callNeil Horman2010-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net: reset skb queue mapping when rx'ing over tunnelTom Herbert2010-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reset queue mapping when an skb is reentering the stack via a tunnel. On second pass, the queue mapping from the original device is no longer valid. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * net: Move "struct net" declaration inside the __KERNEL__ macro guardOllie Wild2010-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reduces namespace pollution by moving the "struct net" declaration out of the userspace-facing portion of linux/netlink.h. It has no impact on the kernel. (This came up because we have several C++ applications which use "net" as a namespace name.) Signed-off-by: Ollie Wild <aaw@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| | * xfrm: Allow different selector family in temporary stateThomas Egerer2010-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The family parameter xfrm_state_find is used to find a state matching a certain policy. This value is set to the template's family (encap_family) right before xfrm_state_find is called. The family parameter is however also used to construct a temporary state in xfrm_state_find itself which is wrong for inter-family scenarios because it produces a selector for the wrong family. Since this selector is included in the xfrm_user_acquire structure, user space programs misinterpret IPv6 addresses as IPv4 and vice versa. This patch splits up the original init_tempsel function into a part that initializes the selector respectively the props and id of the temporary state, to allow for differing ip address families whithin the state. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2010-09-27
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/amd-iommu: Fix rounding-bug in __unmap_single x86/amd-iommu: Work around S3 BIOS bug x86/amd-iommu: Set iommu configuration flags in enable-loop x86, setup: Fix earlyprintk=serial,0x3f8,115200 x86, setup: Fix earlyprintk=serial,ttyS0,115200
| | * \ Merge branch 'amd-iommu/2.6.36' of ↵Ingo Molnar2010-09-24
| | |\ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| | | * | x86/amd-iommu: Work around S3 BIOS bugJoerg Roedel2010-09-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a workaround for an IOMMU BIOS problem to the AMD IOMMU driver. The result of the bug is that the IOMMU does not execute commands anymore when the system comes out of the S3 state resulting in system failure. The bug in the BIOS is that is does not restore certain hardware specific registers correctly. This workaround reads out the contents of these registers at boot time and restores them on resume from S3. The workaround is limited to the specific IOMMU chipset where this problem occurs. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | | | arm: fix "arm: fix pci_set_consistent_dma_mask for dmabounce devices"FUJITA Tomonori2010-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regression caused by the commit 6fee48cd330c68 ("dma-mapping: arm: use generic pci_set_dma_mask and pci_set_consistent_dma_mask"). ARM needs to clip the dma coherent mask for dmabounce devices. This restores the old trick. Note that strictly speaking, the DMA API doesn't allow architectures to do such but I'm not sure it's worth adding the new API to set the dma mask that allows architectures to clip it. Reported-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | fs: {lock,unlock}_flocks() stubs to prepare for BKL removalSage Weil2010-09-21
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lock structs are currently protected by the BKL, but are accessed by code in fs/locks.c and misc file system and DLM code. These stubs will allow all users to switch to the new interface before the implementation is changed to a spinlock. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | genirq: Query arch for number of early descriptorsThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparse irq sets up NR_IRQS_LEGACY irq descriptors and archs then go ahead and allocate more. Use the unused return value of arch_probe_nr_irqs() to let the architecture return the number of early allocations. Fix up all users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Implement irq reservationThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark a range of interrupts as allocated. In the SPARSE_IRQ=n case we need this to update the bitmap for the legacy irqs so the enumerator via irq_get_next_irq() works. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | | genirq: Implement sane enumerationThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the allocator bitmap to lookup active interrupts. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Implement a sane sparse_irq allocatorThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current sparse_irq allocator has several short comings due to failures in the design or the lack of it: - Requires iteration over the number of active irqs to find a free slot (Some architectures have grown their own workarounds for this) - Removal of entries is not possible - Racy between create_irq_nr and destroy_irq (plugged by horrible callbacks) - Migration of active irq descriptors is not possible - No bulk allocation of irq ranges - Sprinkeled irq_desc references all over the place outside of kernel/irq/ (The previous chip functions series is addressing this issue) Implement a sane allocator which fixes the above short comings (though migration of active descriptors needs a full tree wide cleanup of the direct and mostly unlocked access to irq_desc). The new allocator still uses a radix_tree, but uses a bitmap for keeping track of allocated irq numbers. That allows: - Fast lookup of a free slot - Allows the removal of descriptors - Prevents the create/destroy race - Bulk allocation of consecutive irq ranges - Basic design is ready for migration of life descriptors after further cleanups The bitmap is also used in the SPARSE_IRQ=n case for lookup and raceless (de)allocation of irq numbers. So it removes the requirement for looping through the descriptor array to find slots. Right now it uses sparse_irq_lock to protect the bitmap and the radix tree, but after cleaning up all users we should be able convert that to a mutex and to switch the radix_tree and decriptor allocations to GFP_KERNEL. [ Folded in a bugfix from Yinghai Lu ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Provide default irq init flagsThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arch code sets it's own irq_desc.status flags right after boot and for dynamically allocated interrupts. That might involve iterating over a huge array. Allow ARCH_IRQ_INIT_FLAGS to set separate flags aside of IRQ_DISABLED which is the default. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Remove early_init_irq_lock_class()Thomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | early_init_irq_lock_class() is called way before anything touches the irq descriptors. In case of SPARSE_IRQ=y this is a NOP operation because the radix tree is empty at this point. For the SPARSE_IRQ=n case it's sufficient to set the lock class in early_init_irq(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Sanitize irq_data accessorsThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get the data structure from the core and provide inline wrappers to access the irq_data members. Provide accessor inlines for irq_data as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Provide status modifierThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide a irq_desc.status modifier function to cleanup the direct access to irq_desc in arch and driver code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Remove unsused inlineThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | move_irq() has no users. Remove it and simplify the ifdef forrest while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Distangle irq.hThomas Gleixner2010-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Move irq_desc and internal functions out of irq.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Provide config option to disable deprecated codeThomas Gleixner2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This option covers now the old chip functions and the irq_desc data fields which are moving to struct irq_data. More stuff will follow. Pretty handy for testing a conversion, whether something broke or not. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Provide advanced irq chip functionsThomas Gleixner2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The low level irq chip functions want access to irq_desc->irq_data. Provide new functions which hand down irq_data instead of the irq number so these functions avoid to call irq_to_desc() which is a radix tree lookup in case of sparse irq. This provides all the old functions except one: end(). end() is a relict of __do_IRQ() and will just go away with the __do_IRQ() code. The replacement for set_affinity() has an extra argument "bool force". The reason for this is to notify the low level code, that the move has to be done right away and cannot be delayed until the next interrupt happens. That's necessary to handle the irq fixup on cpu unplug in the generic code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20100927121841.742126604@linutronix.de> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Convert core code to irq_dataThomas Gleixner2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert all references in the core code to orq, chip, handler_data, chip_data, msi_desc, affinity to irq_data.* Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Create irq_dataThomas Gleixner2010-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Low level chip functions need access to irq_desc->handler_data, irq_desc->chip_data and irq_desc->msi_desc. We hand down the irq number to the low level functions, so they need to lookup irq_desc. With sparse irq this means a radix tree lookup. We could hand down irq_desc itself, but low level chip functions have no need to fiddle with it directly and we want to restrict access to irq_desc further. Preparatory patch for new chip functions. Note, that the ugly anon union/struct is there to avoid a full tree wide clean up for now. This is not going to last 3 years like __do_IRQ() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20100927121841.645542300@linutronix.de> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Ingo Molnar <mingo@elte.hu>
* | | | genirq: Cleanup irq_chip->typename leftoversThomas Gleixner2010-09-23
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 years transition phase is enough. Cleanup the last users and remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Leo Chen <leochen@broadcom.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-09-19
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits) dca: disable dca on IOAT ver.3.0 multiple-IOH platforms netpoll: Disable IRQ around RCU dereference in netpoll_rx sctp: Do not reset the packet during sctp_packet_config(). net/llc: storing negative error codes in unsigned short MAINTAINERS: move atlx discussions to netdev drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory drivers/net/eql.c: prevent reading uninitialized stack memory drivers/net/usb/hso.c: prevent reading uninitialized memory xfrm: dont assume rcu_read_lock in xfrm_output_one() r8169: Handle rxfifo errors on 8168 chips 3c59x: Remove atomic context inside vortex_{set|get}_wol tcp: Prevent overzealous packetization by SWS logic. net: RPS needs to depend upon USE_GENERIC_SMP_HELPERS phylib: fix PAL state machine restart on resume net: use rcu_barrier() in rollback_registered_many bonding: correctly process non-linear skbs ipv4: enable getsockopt() for IP_NODEFRAG ipv4: force_igmp_version ignored when a IGMPv3 query received ppp: potential NULL dereference in ppp_mp_explode() net/llc: make opt unsigned in llc_ui_setsockopt() ...
| * | netpoll: Disable IRQ around RCU dereference in netpoll_rxHerbert Xu2010-09-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We cannot use rcu_dereference_bh safely in netpoll_rx as we may be called with IRQs disabled. We could however simply disable IRQs as that too causes BH to be disabled and is safe in either case. Thanks to John Linville for discovering this bug and providing a patch. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | tcp: Prevent overzealous packetization by SWS logic.Alexey Kuznetsov2010-09-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If peer uses tiny MSS (say, 75 bytes) and similarly tiny advertised window, the SWS logic will packetize to half the MSS unnecessarily. This causes problems with some embedded devices. However for large MSS devices we do want to half-MSS packetize otherwise we never get enough packets into the pipe for things like fast retransmit and recovery to work. Be careful also to handle the case where MSS > window, otherwise we'll never send until the probe timer. Reported-by: ツ Leandro Melo de Sales <leandroal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds2010-09-16
|\ \ \ | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: add documentation
| * | | workqueue: add documentationTejun Heo2010-09-13
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update copyright notice and add Documentation/workqueue.txt. Randy Dunlap, Dave Chinner: misc fixes. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-By: Florian Mickler <florian@mickler.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Dave Chinner <david@fromorbit.com>
* | | Merge branch 'drm-fixes' of ↵Linus Torvalds2010-09-16
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2) drm/radeon/kms: force legacy pll algo for RV620 LVDS drm: fix race between driver loading and userspace open. drm: Use a nondestructive mode for output detect when polling (v2) drm/radeon/kms: fix the colorbuffer CS checker for r300-r500 drm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500 drm/radeon/kms/evergreen: fix backend setup drm: Use a nondestructive mode for output detect when polling drm/radeon: add some missing copyright headers drm: Only decouple the old_fb from the crtc is we call mode_set* drm/radeon/kms: don't enable underscan with interlaced modes drm/radeon/kms: add connector table for Mac x800 drm/radeon/kms: fix regression in RMX code (v2) drm: Fix regression in disable polling e58f637
| * | | drm: Use a nondestructive mode for output detect when polling (v2)Chris Wilson2010-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v2: Julien Cristau pointed out that @nondestructive results in double-negatives and confusion when trying to interpret the parameter, so use @force instead. Much easier to type as well. ;-) And fix the miscompilation of vmgfx reported by Sedat Dilek. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-02 06:31:06 -0500