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2009-01-03Deassign device in kvm_free_assgined_deviceWeidong Han3-10/+2
In kvm_iommu_unmap_memslots(), assigned_dev_head is already empty. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03KVM: support device deassignmentWeidong Han3-0/+74
Support device deassignment, it can be used in device hotplug. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03KVM: use the new intel iommu APIsWeidong Han3-49/+71
intel iommu APIs are updated, use the new APIs. In addition, change kvm_iommu_map_guest() to just create the domain, let kvm_iommu_assign_device() assign device. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Check agaw is sufficient for mapped memoryWeidong Han1-0/+61
When domain is related to multiple iommus, need to check if the minimum agaw is sufficient for the mapped memory Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Change intel iommu APIs of virtual machine domainWeidong Han2-79/+70
These APIs are used by KVM to use VT-d Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Change domain_context_mapping_one for virtual machine domainWeidong Han1-3/+52
vm_domid won't be set in context, find available domain id for a device from its iommu. For a virtual machine domain, a default agaw will be set, and skip top levels of page tables for iommu which has less agaw than default. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Allocation and free functions of virtual machine domainWeidong Han1-2/+105
virtual machine domain is different from native DMA-API domain, implement separate allocation and free functions for virtual machine domain. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Add domain_flush_cacheWeidong Han1-17/+26
Because virtual machine domain may have multiple devices from different iommus, it cannot use __iommu_flush_cache. In some common low level functions, use domain_flush_cache instead of __iommu_flush_cache. On the other hand, in some functions, iommu can is specified or domain cannot be got, still use __iommu_flush_cache Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Add/remove domain device info for virtual machine domainWeidong Han1-5/+166
Add iommu reference count in domain, and add a lock to protect iommu setting including iommu_bmp, iommu_count and iommu_coherency. virtual machine domain may have multiple devices from different iommus, so it needs to do more things when add/remove domain device info. Thus implement separate these functions for virtual machine domain. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Add domain flag DOMAIN_FLAG_VIRTUAL_MACHINEWeidong Han1-0/+7
Add this flag for VT-d used in virtual machine, like KVM. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03iommu coherencyWeidong Han1-0/+24
In dmar_domain, more than one iommus may be included in iommu_bmp. Due to "Coherency" capability may be different across iommus, set this variable to indicate iommu access is coherent or not. Only when all related iommus in a dmar_domain are all coherent, iommu access of this domain is coherent. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03calculate agaw for each iommuWeidong Han4-0/+34
"SAGAW" capability may be different across iommus. Use a default agaw, but if default agaw is not supported in some iommus, choose a less supported agaw. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03iommu bitmap instead of iommu pointer in dmar_domainWeidong Han1-30/+67
In order to support assigning multiple devices from different iommus to a domain, iommu bitmap is used to keep all iommus the domain are related to. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Get iommu from g_iommus for deferred flushWeidong Han1-3/+4
deferred_flush[] uses the iommu seq_id to index, so its iommu is fixed and can get it from g_iommus. Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Add global iommu listWeidong Han1-0/+25
Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03change P2P domain flagsWeidong Han1-3/+5
Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03Initialize domain flags to 0Weidong Han1-0/+1
It's random number after the domain is allocated by kmem_cache_alloc Signed-off-by: Weidong Han <weidong.han@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03VT-d: fix segment number being ignored when searching DRHDYu Zhao1-18/+18
On platforms with multiple PCI segments, any of the segments can have a DRHD with INCLUDE_PCI_ALL flag. So need to check the DRHD's segment number against the PCI device's when searching its DRHD. Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-01-03intel-iommu: trivially inline DMA PTE macrosMark McLoughlin1-23/+48
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: trivially inline context entry macrosMark McLoughlin1-30/+55
Some macros were unused, so I just dropped them: context_fault_disable context_translation_type context_address_root context_address_width context_domain_id Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move iommu_prepare_gfx_mapping() out of dma_remapping.hMark McLoughlin2-7/+5
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: kill off duplicate def of dmar_disabledMark McLoughlin1-1/+0
This is only used in dmar.c and intel-iommu.h, so dma_remapping.h seems like the appropriate place for it. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move struct device_domain_info out of dma_remapping.hMark McLoughlin2-10/+10
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move struct dmar_domain def out dma_remapping.hMark McLoughlin2-20/+20
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move DMA PTE defs out of dma_remapping.hMark McLoughlin2-22/+22
DMA_PTE_READ/WRITE are needed by kvm. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move context entry defs out from dma_remapping.hMark McLoughlin2-38/+38
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move root entry defs from dma_remapping.hMark McLoughlin2-33/+34
We keep the struct root_entry forward declaration for the pointer in struct intel_iommu. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: move DMA_32/64BIT_PFN into intel-iommu.cMark McLoughlin2-5/+3
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: make init_dmars() staticMark McLoughlin2-2/+1
init_dmars() is not used outside of drivers/pci/intel-iommu.c Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-03intel-iommu: remove some unused struct intel_iommu fieldsMark McLoughlin2-6/+0
The seg, saved_msg and sysdev fields appear to be unused since before the code was first merged. linux/msi.h is not needed in linux/intel-iommu.h anymore since there is no longer a reference to struct msi_msg. The MSI code in drivers/pci/intel-iommu.c still has linux/msi.h included via linux/dmar.h. linux/sysdev.h isn't needed because there is no reference to struct sys_device. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-01-02Disallow gcc versions 3.{0,1}Ingo Molnar1-0/+4
GCC 3.0 and 3.1 are too old to build a working kernel. Signed-off-by: Ingo Molnar <mingo@elte.hu> [ This check got dropped as obsolete when I simplified the gcc header inclusion mess in f153b82121b0366fe0e5f9553545cce237335175, but Willy Tarreau reports actually having those old versions still.. -Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Update powerpc maintainersPaul Mackerras1-3/+3
Ben Herrenschmidt is taking over as the primary powerpc architecture maintainer. I'll still be around as his backup/deputy. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02i8k: Add Dell Vostro systemsFederico Heinz1-1/+8
This trivial patch adds support for i8k on the new Dell Vostro models. I tested it on my Vostro 1400, and it works. It does print a warning when loading the module: i8k: unable to get SMM BIOS version But I couldn't figure out how to fix that. The module seems to work fine, anyway... Signed-off-by: Federico Heinz <fheinz@vialibre.org.ar> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02i8k: Enable i8k on Dell Precision SystemsAndy Spencer1-0/+7
Patch to enable i8k on Dell Precisions. Signed-off-by: Andy Spencer <spenceal@rose-hulman.edu> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Fix compiler warning in arch/x86/mm/init_32.cIngo Brueckl1-2/+6
Signed-off-by: Ingo Brueckl <ib@wupperonline.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02serial_8250: support for Sealevel Systems Model 7803 COMM+8Flavio Leitner2-0/+4
Add support for Sealevel Systems Model 7803 COMM+8 Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02hso maintainers update patchDenis Joseph Barrow2-0/+8
Added D.J. Barrow as maintainer of hso driver. Signed-off-by: Denis Joseph Barrow <D.Barow@option.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02hso modem detect fix patch against Alan Cox'es tty treeDenis Joseph Barrow1-1/+1
Fixed incorrect check for the modem port, this prevents crashes caused by issueing a tiocmget_submit_urb on endpoints which don't exist for non modem devices. Signed-off-by: Denis Joseph Barrow <D.Barow@option.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02tty: Fix an ircomm warning and note another bugAlan Cox1-2/+3
Roel Kluin noted that line is unsigned so one test is unneccessary. Also add a warning for another flaw I noticed while making this change. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02drivers/char/cyclades.c: cy_pci_probe: fix error pathAndrew Morton1-1/+1
We forgot to release resources in one case. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=12137 Reported-by: Florian Lohoff <flo@rfc822.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Serial: UART driver changes for Cavium OCTEON.David Daney2-1/+9
Cavium UART implementation is not covered by existing uart_configS. Define a new uart_config (PORT_OCTEON) which is specified by OCTEON platform device registration code. Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Serial: Allow port type to be specified when calling serial8250_register_port.David Daney4-2/+17
Add flag value UPF_FIXED_TYPE which specifies that the UART type is known and should not be probed. For this case the UARTs properties are just copied out of the uart_config entry. This allows us to keep SOC specific 8250 probe code out of 8250.c. In this case we know the serial hardware will not be changing as it is on the same silicon as the CPU, and we can specify it with certainty in the board/cpu setup code. The alternative is to load up 8250.c with a bunch of OCTEON specific special cases in the probing code. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-028250: Serial driver changes to support future Cavium OCTEON serial patches.David Daney3-58/+140
In order to use Cavium OCTEON specific serial i/o drivers, we first patch the 8250 driver to use replaceable I/O functions. Compatible I/O functions are added for existing iotypeS. An added benefit of this change is that it makes it easy to factor some of the existing special cases out to board/SOC specific support code. The alternative is to load up 8250.c with a bunch of OCTEON specific iotype code and bug work-arounds. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-028250: Don't clobber spinlocks.David Daney1-2/+13
In serial8250_isa_init_ports(), the port's lock is initialized. We should not overwrite it. In early_serial_setup(), only copy in the fields we need. Since the early console code only uses a subset of the fields, these are sufficient. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02fix for tty-serial-move-portAlexander Beregalov1-3/+1
Hi Alan next-20081204 crashes with the following message: BUG: unable to handle kernel paging request at ffff88007d320248 IP: [<ffffffff803de934>] uart_remove_one_port+0xef/0x111 kfree(info); 393: 49 8d 7d 10 lea 0x10(%r13),%rdi 397: e8 00 00 00 00 callq 39c <uart_remove_one_port+0xef> Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02tty: We want the port object to be persistentAlan Cox3-112/+96
Move the tty_port and uart_info bits around a little. By embedding the uart_info into the uart_port we get rid of lots of corner case testing and also get the ability to go port<->state<->info which is a bit more elegant than the current data structures. Downsides - we allocate a tiny bit more memory for unused ports, upside we've removed as much code as it saved for most users.. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02__FUNCTION__ is gcc-specific, use __func__Harvey Harrison1-30/+30
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02serial: RS485 ioctl structure uses __u32 include linux/types.hAndy Whitcroft1-1/+2
In the commit below a new struct serial_rs485 was introduced for a new ioctl: commit c26c56c0f40e200e61d1390629c806f6adaffbcc Author: Alan Cox <alan@redhat.com> Date: Mon Oct 13 10:37:48 2008 +0100 tty: Cris has a nice RS485 ioctl so we should steal it This structure uses the __u32 types for some of its members, which leads to the following compile error: $ cc -I.../include -c X.c In file included from X.c:2: .../include/linux/serial.h:185: error: expected specifier-qualifier-list before ‘__u32’ $ It seems that these types are appropriate for this structure as it is to be exposed to userspace. These types are available via linux/types.h so move the include of that outside the __KERNEL__ section. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02tty: Drop the lock_kernel in the private ioctl hookAlan Cox5-8/+14
We don't need the BKL here any more so it can go. In a couple of spots the driver requirements are not clear so push the lock down into the driver. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02synclink_cs: Convert to tty_portAlan Cox1-298/+181
Use the tty port operations, add refcounting, and refactor a bit to make the refcounting work cleanly. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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