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* Merge branch 'master' of git://git.infradead.org/users/dedekind/mtd-tests-2.6David Woodhouse2009-01-0510-1/+3530
|\ | | | | | | | | Conflicts: drivers/mtd/Makefile
| * MTD: add MTD tests to compilationArtem Bityutskiy2008-12-103-1/+16
| | | | | | | | | | | | Add MTD tests to Kconfig and Makefiles. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_torturetestArtem Bityutskiy2008-12-101-0/+530
| | | | | | | | | | | | | | This test is designed to work for very long time and it tries to wear few eraseblocks. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_subpagetestArtem Bityutskiy2008-12-081-0/+525
| | | | | | | | | | | | This tests makes sure sub-pages on NAND MTD device work fine. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_stresstestArtem Bityutskiy2008-12-081-0/+330
| | | | | | | | | | | | This test just performs random operations on random eraseblocks. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_speedtestArtem Bityutskiy2008-12-081-0/+502
| | | | | | | | | | | | This test examines I/O speed of the flash device. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_readtestArtem Bityutskiy2008-12-081-0/+253
| | | | | | | | | | | | A simple tests which reads whole MTD device one page at a time. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_pagetestArtem Bityutskiy2008-12-081-0/+632
| | | | | | | | | | | | This test checks that NAND pages read/write work fine. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * MTD: tests: add mtd_oobtestArtem Bityutskiy2008-12-081-0/+742
| | | | | | | | | | | | This test checks that OOB of a NAND MTD device works fine. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* | [MTD] LPDDR Makefile and KConfigAlexey Korolev2009-01-054-1/+31
| | | | | | | | | | | | | | | | | | | | We have two components to manage LPDDR flash memories in Linux. 1. It is a driver for chip probing and reading its capabilities 2. It is a device operations driver. Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] LPDDR extended physmap driver to support LPDDR flashAlexey Korolev2009-01-052-3/+9
| | | | | | | | | | | | | | | | | | | | | | Physmap is a generic map driver for different platforms and flash types. We added support of LPDDR to physmap. All changes here are related to introduction of new pfow_base parameter. This parameter is valid in case of LPDDR chips only. Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] LPDDR Command set driverAlexey Korolev2009-01-051-0/+796
| | | | | | | | | | | | | | | | | | | | Driver which handles device command operation. Details on device operations are available here: http://www.numonyx.com/Documents/Datasheets/DS-315768_Velocity-Discrete.pdf Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] LPDDR qinfo probing.Alexey Korolev2009-01-051-0/+255
| | | | | | | | | | | | | | | | | | | | | | | | | | | | LPDDR flash chips are based on completely new kind of chips probing. Device capabilities are available via special request. We sent field request command which contains Major and Minor numbers - and recieve corresponend value. All requests are performed within PFOW window. Detailed information about qinfo records can be found here: http://www.numonyx.com/Documents/Datasheets/DS-315768_Velocity-Discrete.pdf Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] [NAND] pxa3xx: convert from ns to clock ticks more accuratelyMatt Reimer2009-01-051-1/+1
| | | | | | | | | | | | | | | | | | | | The various fields in NDTR{01} are in units of clock ticks minus one, but the ns2cycle macro mistakenly adds one, inflating the number of clock ticks and making it impossible to set any of these fields to zero. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] [NAND] pxa3xx: fix non-page-aligned readsMatt Reimer2009-01-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reads from non-page-aligned addresses were broken because while the address to read from was correctly written to NDCB*, a full page was always read. Fix this by ignoring the column and only using the page address. I suspect this whole-page behavior is due to the controller's need to read the entire page in order to generate correct ECC. In the non-ECC case this could be optimized to use the column address, and to set the read length to what is being requested rather than the length of an entire page. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] [NAND] fix nandsim sched.h referencesRandy Dunlap2009-01-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix sched.h references: build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1326: error: 'PF_MEMALLOC' undeclared (first use in this function) build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1328: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: dereferencing pointer to incomplete type build-r7149.out:/local/linsrc/linux-next-20081215/drivers/mtd/nand/nandsim.c:1335: error: 'PF_MEMALLOC' undeclared (first use in this function) build-r7149.out:make[4]: *** [drivers/mtd/nand/nandsim.o] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | [MTD] [NAND] alauda: use USB API functions rather than constantsJulia Lawall2009-01-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This set of patches introduces calls to the following set of functions: usb_endpoint_dir_in(epd) usb_endpoint_dir_out(epd) usb_endpoint_is_bulk_in(epd) usb_endpoint_is_bulk_out(epd) usb_endpoint_is_int_in(epd) usb_endpoint_is_int_out(epd) usb_endpoint_num(epd) usb_endpoint_type(epd) usb_endpoint_xfer_bulk(epd) usb_endpoint_xfer_control(epd) usb_endpoint_xfer_int(epd) usb_endpoint_xfer_isoc(epd) In some cases, introducing one of these functions is not possible, and it just replaces an explicit integer value by one of the following constants: USB_ENDPOINT_XFER_BULK USB_ENDPOINT_XFER_CONTROL USB_ENDPOINT_XFER_INT USB_ENDPOINT_XFER_ISOC An extract of the semantic patch that makes these changes is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r1@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) == - \(USB_ENDPOINT_XFER_CONTROL\|0\)) + usb_endpoint_xfer_control(epd) @r5@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) == - \(USB_DIR_IN\|0x80\)) + usb_endpoint_dir_in(epd) @inc@ @@ #include <linux/usb.h> @depends on !inc && (r1||r5)@ @@ + #include <linux/usb.h> #include <linux/usb/...> // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | Merge branch 'master' of ↵David Woodhouse2009-01-051869-70094/+156653
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/arm/mach-pxa/corgi.c arch/arm/mach-pxa/poodle.c arch/arm/mach-pxa/spitz.c
| * | rtc: add alarm/update irq interfacesAlessandro Zummo2009-01-043-17/+94
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add standard interfaces for alarm/update irqs enabling. Drivers are no more required to implement equivalent ioctl code as rtc-dev will provide it. UIE emulation should now be handled correctly and will work even for those RTC drivers who cannot be configured to do both UIE and AIE. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | viafb: fix crashes due to 4k stack overflowBruno Prémont2009-01-041-119/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function viafb_cursor() uses 2 stack-variables of CURSOR_SIZE bits; CURSOR_SIZE is defined as (8 * 1024). Using up twice 1k on stack is too much for 4k-stack (though it works with 8k-stacks). Make those two variables kzalloc'ed to preserve stack space. Also merge the whole lot of local struct's in viafb_ioctl into a union so the stack usage gets minimized here as well. (struct's are only accessed in their indicidual IOCTL case) This second part is only compile-tested as I know of no userspace app using the IOCTLs. Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Cc: <JosephChan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | Merge branch 'cpus4096-for-linus-3' of ↵Linus Torvalds2009-01-037-58/+135
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits) x86: setup_per_cpu_areas() cleanup cpumask: fix compile error when CONFIG_NR_CPUS is not defined cpumask: use alloc_cpumask_var_node where appropriate cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t x86: use cpumask_var_t in acpi/boot.c x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids sched: put back some stack hog changes that were undone in kernel/sched.c x86: enable cpus display of kernel_max and offlined cpus ia64: cpumask fix for is_affinity_mask_valid() cpumask: convert RCU implementations, fix xtensa: define __fls mn10300: define __fls m32r: define __fls h8300: define __fls frv: define __fls cris: define __fls cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS cpumask: zero extra bits in alloc_cpumask_var_node cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/ cpumask: convert mm/ ...
| | * | cpumask: fix compile error when CONFIG_NR_CPUS is not definedMike Travis2009-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_NR_CPUS will be defined for all arch's whether SMP or not, but it may not have made it into all arches yet. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_tRusty Russell2009-01-033-44/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | Merge branch 'master' of ↵Mike Travis2009-01-031616-61223/+145230
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask Conflicts: arch/x86/kernel/io_apic.c kernel/rcuclassic.c kernel/sched.c kernel/time/tick-sched.c Signed-off-by: Mike Travis <travis@sgi.com> [ mingo@elte.hu: backmerged typo fix for io_apic.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | percpu: fix percpu accessors to potentially !cpu_possible() cpus: pnpbiosRusty Russell2009-01-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: CPU iterator bugfixes Percpu areas are only allocated for possible cpus. In general, you shouldn't access random cpu's percpu areas. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Adam Belay <ambx1@neo.rr.com>
| | | * | Merge branch 'master' of ↵Rusty Russell2008-12-31657-19874/+82905
| | | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/x86/kernel/io_apic.c
| | | * | | cpumask: use new cpumask API in drivers/infiniband/hw/ipathRusty Russell2008-12-301-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup We're moving from handing around cpumask_t's to handing around struct cpumask *'s. cpus_*, cpumask_t and cpu_*_map are deprecated: convert to cpumask_*, cpu_*_mask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ralph Campbell <infinipath@qlogic.com>
| | | * | | cpumask: use new cpumask API in drivers/infiniband/hw/ehcaRusty Russell2008-12-301-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup We're moving from handing around cpumask_t's to handing around struct cpumask *'s. cpus_*, cpumask_t and cpu_*_map are deprecated: convert to cpumask_*, cpu_*_mask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
| | | * | | cpumask: use for_each_online_cpu() in drivers/infiniband/hw/ehca/ehca_irq.cRusty Russell2008-12-301-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup In future, accessing cpu numbers beyond nr_cpu_ids (the runtime limit) will be undefined. We can avoid future problems by using for_each_online_cpu() here. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
| | | * | | Merge branch 'master' of ↵Rusty Russell2008-12-301042-41588/+62727
| | | |\ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| | | * | | | cpumask: add sysfs displays for configured and disabled cpu mapsMike Travis2008-12-191-0/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add new sysfs files. Add sysfs files "kernel_max" and "offline" to display the max CPU index allowed (NR_CPUS-1), and the map of cpus that are offline. Cpus can be offlined via HOTPLUG, disabled by the BIOS ACPI tables, or if they exceed the number of cpus allowed by the NR_CPUS config option, or the "maxcpus=NUM" kernel start parameter. The "possible_cpus=NUM" parameter can also extend the number of possible cpus allowed, in which case the cpus not present at startup will be in the offline state. (These cpus can be HOTPLUGGED ON after system startup [pending a follow-on patch to provide the capability via the /sys/devices/sys/cpu/cpuN/online mechanism to bring them online.]) By design, the "offlined cpus > possible cpus" display will always use the following formats: * all possible cpus online: "x$" or "x-y$" * some possible cpus offline: ".*,x$" or ".*,x-y$" where: x == number of possible cpus (nr_cpu_ids); and y == number of cpus >= NR_CPUS or maxcpus (if y > x). One use of this feature is for distros to select (or configure) the appropriate kernel to install for the resident system. Notes: * cpus offlined <= possible cpus will be printed for all architectures. * cpus offlined > possible cpus will only be printed for arches that set 'total_cpus' [X86 only in this patch]. Based on tip/cpus4096 + .../rusty/linux-2.6-for-ingo.git/master + x86-only-patches sent 12/15. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
| * | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-01-034-144/+947
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu: (89 commits) AMD IOMMU: remove now unnecessary #ifdefs AMD IOMMU: prealloc_protection_domains should be static kvm/iommu: fix compile warning AMD IOMMU: add statistics about total number of map requests AMD IOMMU: add statistics about allocated io memory AMD IOMMU: add stats counter for domain tlb flushes AMD IOMMU: add stats counter for single iommu domain tlb flushes AMD IOMMU: add stats counter for cross-page request AMD IOMMU: add stats counter for free_coherent requests AMD IOMMU: add stats counter for alloc_coherent requests AMD IOMMU: add stats counter for unmap_sg requests AMD IOMMU: add stats counter for map_sg requests AMD IOMMU: add stats counter for unmap_single requests AMD IOMMU: add stats counter for map_single requests AMD IOMMU: add stats counter for completion wait events AMD IOMMU: add init code for statistic collection AMD IOMMU: add necessary header defines for stats counting AMD IOMMU: add Kconfig entry for statistic collection code AMD IOMMU: use dev_name in iommu_enable function AMD IOMMU: use calc_devid in prealloc_protection_domains ...
| | * | | | | | intel-iommu: fix bit shift at DOMAIN_FLAG_P2P_MULTIPLE_DEVICESMike Day2009-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: remove now unused intel_iommu_found functionJoerg Roedel2009-01-031-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: register functions for the IOMMU APIJoerg Roedel2009-01-031-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: adapt domain iova_to_phys function for IOMMU APIJoerg Roedel2009-01-031-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: adapt domain map and unmap functions for IOMMU APIJoerg Roedel2009-01-031-13/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: adapt device attach and detach functions for IOMMU APIJoerg Roedel2009-01-031-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | VT-d: adapt domain init and destroy functions for IOMMU APIJoerg Roedel2009-01-031-15/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | select IOMMU_API when DMAR and/or AMD_IOMMU is selectedJoerg Roedel2009-01-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These two IOMMUs can implement the current version of this API. So select the API if one or both of these IOMMU drivers is selected. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | | add frontend implementation for the IOMMU APIJoerg Roedel2009-01-031-0/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This API can be used by KVM for accessing different types of IOMMUs to do device passthrough to guests. Beside that this API can also be used by device drivers to map non-linear host memory into dma-linear addresses to prevent sgather-gather DMA. UIO may be another user for this API. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * | | | | | Check agaw is sufficient for mapped memoryWeidong Han2009-01-031-0/+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>
| | * | | | | | Change intel iommu APIs of virtual machine domainWeidong Han2009-01-031-70/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | | | | | Change domain_context_mapping_one for virtual machine domainWeidong Han2009-01-031-3/+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>
| | * | | | | | Allocation and free functions of virtual machine domainWeidong Han2009-01-031-2/+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>
| | * | | | | | Add domain_flush_cacheWeidong Han2009-01-031-17/+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>
| | * | | | | | Add/remove domain device info for virtual machine domainWeidong Han2009-01-031-5/+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>
| | * | | | | | Add domain flag DOMAIN_FLAG_VIRTUAL_MACHINEWeidong Han2009-01-031-0/+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>
| | * | | | | | iommu coherencyWeidong Han2009-01-031-0/+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>
| | * | | | | | calculate agaw for each iommuWeidong Han2009-01-032-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "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>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 08:47:53 +0000