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2008-04-27ide-tape: remove remaining pipeline functionalityBorislav Petkov
The driver is using now solely its own request queue. - tape->next_stage is always NULL so it is safe to remove all code depending on tape->next_stage != NULL - this patch removes the last place which sets IDETAPE_FLAG_PIPELINE_ACTIVE in tape->flags [bart: add above explanations] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: unwrap idetape_queue_pc_tail()Borislav Petkov
idetape_queue_pc_tail() is a wrapper for its __idetape_queue_pc_tail() counterpart and has no other functionality. Remove it and call the "wrapped" function directly. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove pipeline-specific code from idetape_end_request()Borislav Petkov
As a side effect, remove unused idetape_kfree_stage() and idetape_abort_pipeline() [bart: resurrect taking tape->lock + clearing IDETAPE_FLAG_PIPELINE_ACTIVE] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove idetape_remove_stage_head()Borislav Petkov
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove idetape_pipeline_size()Borislav Petkov
The computation of the block offset of the the tape position (MTIOCPOS, MTIOCGET) is not influenced by the stages queued in the pipeline anymore but by the size of the current buffer which is going to be sent to the drive. [bart: resurrect deleted idetape_wait_for_pipeline() call] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove pipeline-specific code in idetape_space_over_filemarks()Borislav Petkov
Since we don't do pipeline read-ahead anymore, we don't have to look for filemarks we have crossed. Therefore, remove the code chunk that does that and pass on the command to the tape. As a side effect, remove unused idetape_wait_first_stage(). Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove unused parameter from idetape_copy_stage_from_userBorislav Petkov
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove unused parameter from idetape_copy_stage_to_userBorislav Petkov
Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove pipeline-specific code from idetape_add_chrdev_read_request()Borislav Petkov
In order to do away with queueing read requests on the pipeline, several things have to be done: 1. Do not allocate additional pipeline stages in idetape_init_read() until (tape->nr_stages < max_stages) and do only read operation preparations. As a collateral result, idetape_add_stage_tail() becomes unused so remove it. 2. Queue the read request's buffer directly thru idetape_queue_rw_tail(). 3. Remove now unused idetape_kmalloc_stage() and idetape_switch_buffers(). [bart: simplify the original patch] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape remove pipeline speed/control calculationsBorislav Petkov
Pipeline handling calculations in idetape_calculate_speeds() can go since they do not have any effect on other functionality besides: 1. info is only being exported through /proc as a read-only item (controlled_pipeline_head_speed, uncontrolled_pipeline_head_speed) 2. used in idetape_restart_speed_control() which, in turn, is unrelated to other code 3. used only for pipeline frames number accounting (tape->pipeline_head), also unused elsewhere. 4.some variables are: only written to: tape->buffer_head; unused: tape->tape_head, tape->last_tape_head Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove pipeline-specific code from idetape_add_chrdev_write_requestBorislav Petkov
Refrain from adding more write requests to the pipeline and queue them directly on the device's request queue instead. [bart: re-do for minimal behavior changes] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide-tape: remove tape->cache_stageBorislav Petkov
Prior to allocating a new pipeline stage, the code checked for the existence of a cached pipeline stage to use. Do away with and stick to normal pipeline stages only. [bart: keep idetape_kmalloc_stage() for now] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: remove obsoleted "hdx=noautotune" kernel parameterBartlomiej Zolnierkiewicz
Remove obsoleted "hdx=noautotune" kernel parameter (it has been obsoleted since 1 Nov 2004). Then make ide_hwif_t.autotune a single bit flag and remove no longer needed IDE_TUNE_* defines. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: remove obsoleted "idex=" kernel parametersBartlomiej Zolnierkiewicz
* Remove obsoleted "idex=" kernel parameters. * Make probe_* and cmd640_vlb variables static. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: remove obsoleted "idex=reset" kernel parameterBartlomiej Zolnierkiewicz
Remove obsoleted "idex=reset" kernel parameter (it has been obsoleted since 1 Nov 2004). Then remove corresponding code from ide_probe_port() and no longer used ->reset field from ide_hwif_t. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: remove obsoleted "idex=serialize" kernel parameterBartlomiej Zolnierkiewicz
Remove obsoleted "idex=serialize" kernel parameter (it has been obsoleted since 1 Nov 2004). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: add "ignore_cable" parameter (take 2)Bartlomiej Zolnierkiewicz
Add "ignore_cable" parameter: * "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in (i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1") * "ignore_cable=[interface_number]" module parameter (for ide_core module) if IDE is compiled as module v2: * Add ide_port_apply_params() helper - use it in ide_device_add_all() and ide_scan_port(). * Make it possible to later disable ignoring cable detection by passing "[interface_number]:0" to /sys/module/ide_core/parameters/ignore_cable (however sysfs interface is not enabled yet since it needs some other IDE changes to make it work reliable). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: fix icside breakageAl Viro
Fallout from commit ac95beedf8bc97b24f9540d4da9952f07221c023 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27hwmon: (adt7473) minor cleanup / refactoringMark M. Hoffman
Acked-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-04-27hwmon: (asb100) Remove some dead codeMark M. Hoffman
Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-04-27hwmon: (lm75) Fix an incorrect commentJean Delvare
High-byte first is not opposite to the usual practice - that's what almost all hardware monitoring drivers do. It is opposite to the SMBus standard though. Also delete a duplicate comment. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-04-27hwmon: (w83793) VID and VRM handling cleanupsJean Delvare
* Rework the device initialization function so as to read the "Multi-Function Pin Control" register (0x58) once instead of twice. I2C transactions aren't cheap so this speeds up the driver loading. * Only create the "vrm" attribute if at least one VID value is available. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Gong Jun <jgong@winbond.com> Acked-by: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-04-27hwmon: (w83l785ts) Don't ask the user to report failuresJean Delvare
There's nothing we can do about read errors on the W83L785TS-S, so don't ask the user to report them. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
2008-04-27sis190: use netdev_alloc_skbStephen Hemminger
This sets skb->dev and allows arch specific allocation. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com>
2008-04-27sis190: hard-code the alignment of tiny packetsStephen Hemminger
There is no DMA involved here. Align the IP header without condition. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com>
2008-04-27sis190: use the allocated buffer as a status code in sis190_alloc_rx_skbStephen Hemminger
The local status code does not carry mory information. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com>
2008-04-27sparc: Remove old style signal frame support.David S. Miller
Back around the same time we were bootstrapping the first 32-bit sparc Linux kernel with a SunOS userland, we made the signal frame match that of SunOS. By the time we even started putting together a native Linux userland for 32-bit Sparc we realized this layout wasn't sufficient for Linux's needs. Therefore we changed the layout, yet kept support for the old style signal frame layout in there. The detection mechanism is that we had sys_sigaction() start passing in a negative signal number to indicate "new style signal frames please". Anyways, no binaries exist in the world that use the old stuff. In fact, I bet Jakub Jelinek and myself are the only two people who ever had such binaries to be honest. So let's get rid of this stuff. I added an assertion using WARN_ON_ONCE() that makes sure 32-bit applications are passing in that negative signal number still. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-27KVM: Rename VCPU_MP_STATE_* to KVM_MP_STATE_*Avi Kivity
We wish to export it to userspace, so move it into the kvm namespace. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: hlt emulation should take in-kernel APIC/PIT timers into accountMarcelo Tosatti
Timers that fire between guest hlt and vcpu_block's add_wait_queue() are ignored, possibly resulting in hangs. Also make sure that atomic_inc and waitqueue_active tests happen in the specified order, otherwise the following race is open: CPU0 CPU1 if (waitqueue_active(wq)) add_wait_queue() if (!atomic_read(pit_timer->pending)) schedule() atomic_inc(pit_timer->pending) Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: do not intercept task switch with NPTJoerg Roedel
When KVM uses NPT there is no reason to intercept task switches. This patch removes the intercept for it in that case. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Add kvm trace userspace interfaceFeng(Eric) Liu
This interface allows user a space application to read the trace of kvm related events through relayfs. Signed-off-by: Feng (Eric) Liu <eric.e.liu@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Stub out kvmtraceAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: s390: Stub out kvmtraceAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Add trace markersFeng (Eric) Liu
Trace markers allow userspace to trace execution of a virtual machine in order to monitor its performance. Signed-off-by: Feng (Eric) Liu <eric.e.liu@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: add intercept for machine check exceptionJoerg Roedel
To properly forward a MCE occured while the guest is running to the host, we have to intercept this exception and call the host handler by hand. This is implemented by this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: align shadow CR4.MCE with hostJoerg Roedel
This patch aligns the host version of the CR4.MCE bit with the CR4 active in the guest. This is necessary to get MCE exceptions when the guest is running. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: indent svm_set_cr4 with tabs instead of spacesJoerg Roedel
The svm_set_cr4 function is indented with spaces. This patch replaces them with tabs. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Register ioctl rangeAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: Don't assume struct page for x86Anthony Liguori
This patch introduces a gfn_to_pfn() function and corresponding functions like kvm_release_pfn_dirty(). Using these new functions, we can modify the x86 MMU to no longer assume that it can always get a struct page for any given gfn. We don't want to eliminate gfn_to_page() entirely because a number of places assume they can do gfn_to_page() and then kmap() the results. When we support IO memory, gfn_to_page() will fail for IO pages although gfn_to_pfn() will succeed. This does not implement support for avoiding reference counting for reserved RAM or for IO memory. However, it should make those things pretty straight forward. Since we're only introducing new common symbols, I don't think it will break the non-x86 architectures but I haven't tested those. I've tested Intel, AMD, NPT, and hugetlbfs with Windows and Linux guests. [avi: fix overflow when shifting left pfns by adding casts] Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add a guide about how to create kvm guests on ia64Xiantao Zhang
Guide for creating virtual machine on kvm/ia64. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Enable kvm build for ia64Xiantao Zhang
Update the related Makefile and KConfig for kvm build Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add kvm sal/pal virtulization supportXiantao Zhang
Some sal/pal calls would be traped to kvm for virtulization from guest firmware. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add guest interruption injection supportXiantao Zhang
process.c mainly handle interruption injection, and some faults handling. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Generate offset values for assembly code useXiantao Zhang
asm-offsets.c will generate offset values used for assembly code for some fileds of special structures. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add optimization for some virtulization faultsXiantao Zhang
optvfault.S Add optimization for some performance-critical virtualization faults. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add processor virtulization supportXiantao Zhang
vcpu.c provides processor virtualization logic for kvm. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add trampoline for guest/host mode switchXiantao Zhang
trampoline code targets for guest/host world switch. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add mmio decoder for kvm/ia64Xiantao Zhang
mmio.c includes mmio decoder, and related mmio logics. Signed-off-by: Anthony Xu <Anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add interruption vector table for vmmXiantao Zhang
vmm_ivt.S includes an ivt for vmm use. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add TLB virtulization supportXiantao Zhang
vtlb.c includes tlb/VHPT virtulization. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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