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* i2c: Rename the PEC functionality bitDavid Brownell2007-10-13
| | | | | | | | | | | | Rename I2C_FUNC_SMBUS_HWPEC_CALC as I2C_FUNC_SMBUS_PEC, and list that functionality as always available through the software implementation. Update documentation accordingly (and list similar requirements). The way it's currently packaged doesn't present the capability in a useful way. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: Move i2c-dev interfaces to i2c-dev.hDavid Brownell2007-10-13
| | | | | | | | | | Move the i2c-dev support into <linux/i2c-dev.h> where it should always have lived. Now <linux/i2c.h> no longer holds stuff related to the optional userspace /dev/i2c-X interface. Improve the descriptions for these ioctl requests. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: Remove i2c_algorithm.algo_control()David Brownell2007-10-13
| | | | | | | | | | | | | | | | | | This removes: - An effectively unused hook: i2c_algorithm.algo_control. - The i2c_control() call, used only by i2c-dev to call that unused hook or set two barely supported adapter params. (That param setting moves into i2c-dev.c ... still iffy due to lack of locking, but no other changes.) As shown by diffstat, this is a net code shrink. It also reduces the complexity of the I2C adapter and /dev interfaces. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: Document struct i2c_msgDavid Brownell2007-10-13
| | | | | | | | | | | Clarify use of the I2C_M_* flags by highlighting the fact that most of them depend on I2C_FUNC_PROTOCOL_MANGLING. Also provide kerneldoc for i2c_smbus_read_block_data() and also for "struct i2c_msg". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: Add DaVinci I2C controller supportVladimir Barinov2007-10-13
| | | | | | Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com> Acked-by: Trilok Soni <soni.trilok@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c-core: Make some code staticAdrian Bunk2007-10-13
| | | | | | | After the i2c-isa removal some code can become static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: New-style devices can support driver model wakeup flagsDavid Brownell2007-10-13
| | | | | | | | | | We need to be able to flag I2C devices, such as RTCs, which can issue wake events (usually through IRQ lines). This adds an i2c_board_info.flags bit, and uses it to initialize the i2c device node. (And shrinks a few lines that were overly long.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* i2c: Kill struct i2c_device_idJean Delvare2007-10-13
| | | | | | | | | | I2C devices do not have any form of ID as PCI or USB devices have. No driver uses "MODULE_DEVICE_TABLE(i2c, ...)" because it doesn't make sense. So we can get rid of struct i2c_device_id and the associated support code. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg KH <greg@kroah.com>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-10-13
|\ | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] SMP: Fix use of cpumasks. [MIPS] Revert "[MIPS] tlbex.c: Cleanup __init usage." [MIPS] CFE: Add missing parenthesis.
| * [MIPS] CFE: Add missing parenthesis.Ralf Baechle2007-10-12
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-10-13
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (27 commits) alim15x3: remove redundant m5229_revision check sc1200: fix ->dma_base equal zero handling cs5520: fix ->dma_base equal zero handling sgiioc4: add missing ->dma_base check cs5535: add missing ->dma_base check ide: remove CONFIG_IDEDMA_IVB config option ide: change master/slave IDENTIFY order ide: move ide_config_drive_speed() calls to upper layers (take 2) pdc202xx_new: check ide_config_drive_speed() return value cs5535: check ide_config_drive_speed() return value amd74xx/via82cxxx: check ide_config_drive_speed() return value au1xxx: fix au1xxx_set_pio_mode() icside: use ide_tune_dma() ide-pmac: fix PIO setup and enable autotune ide-pmac: use ide_tune_dma() (take 2) ide-pmac: remove pmac_ide_do_setfeature() (take 2) ide-pmac: remove nIEN clearing from pmac_ide_do_setfeature() ide-pmac: use __ide_wait_stat() ide-pmac: remove extra good status wait from pmac_ide_do_setfeature() ide: add __ide_wait_stat() helper ...
| * | ide: move ide_config_drive_speed() calls to upper layers (take 2)Bartlomiej Zolnierkiewicz2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16. * Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program the host for the transfer mode after programming the device. Set it in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac and via82cxxx host drivers. * Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely skip programming of host/device for the transfer mode ("smart" hosts). Set it in it821x host driver and check it in ide_tune_dma(). * Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all direct ->set_pio_mode/->speedproc users to use these helpers. * Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc methods to callers. * Rename ->speedproc method to ->set_dma_mode, make it void and update all implementations accordingly. * Update ide_set_xfer_rate() comments. * Unexport ide_config_drive_speed(). v2: * Fix issues noticed by Sergei: - export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt to setting DMA modes from sc1200_set_pio_mode() to do_special() - check IDE_HFLAG_NO_SET_MODE in ide_tune_dma() - check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode() - check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode() - return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL - don't set ->set_{pio,dma}_mode on it821x in "smart" mode - fix build problem in pmac.c - minor fixes in au1xxx-ide.c/cs5530.c/siimage.c - improve patch description Changes in behavior caused by this patch: - HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change PIO mode if it821x controller is in "smart" mode - removal of two debugging printk-s (from cs5530.c and sc1200.c) - transfer modes 0x00-0x07 passed from user space may be programmed twice on the device (not really an issue since 0x00 is not supported correctly by any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * | icside: use ide_tune_dma()Bartlomiej Zolnierkiewicz2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add "good DMA drives" hack for icside to ide-dma.c::ide_find_dma_mode() (in the long-term it should be either removed or generalized for all hosts). * Use ide_tune_dma() in icside.c::icside_dma_check(). This results in the following changes in behavior: - pre-EIDE SWDMA modes are now also respected - drive->autodma is checked instead of hwif->autodma (doesn't really matter as icside sets both to "1") * Make ide-dma.c::__ide_dma_good_drive() static and drop "__" prefix. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * | ide-pmac: remove pmac_ide_do_setfeature() (take 2)Bartlomiej Zolnierkiewicz2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use ide_config_drive_speed() instead of pmac_ide_do_setfeature() and remove the latter, also ide-iops.c::__ide_wait_stat() could be static again. Since for IDE PMAC host driver IDE_CONTROL_REG is always true, device's ->quirk_list is always zero and ->ide_dma_host_{on,off} are nops than the only changes in behavior are: * if PIO mode is set then ->dma_off_queitly is called to disable DMA * if setting transfer mode fails ide_dump_status() is called to dump status v2: * IDE PMAC controllers allow separate PIO and DMA timings and PPC userland depends on this fact, and calls "hdparm -p" without calling "hdparm -d". Therefore to compensate for DMA being disabled by ide_config_drive_speed() for PIO modes: - add IDE_HFLAG_SET_PIO_MODE_KEEP_DMA flag and set it in PMAC host driver - add handling of the new flag to ide-io.c::do_special() Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * | ide-pmac: use __ide_wait_stat()Bartlomiej Zolnierkiewicz2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Use __ide_wait_stat() instead of wait_for_ready() in pmac_ide_do_setfeature(). While at it do following changes to match __ide_wait_stat() call in ide_config_drive_speed(): * Wait WAIT_CMD time (20 sec) instead of 2 sec for device to clear BUSY_STAT. * Check DRQ_STAT bit (shouldn't be set for good device status). Also remove no longer needed wait_for_ready() from ide-iops.c. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * | ide: add __ide_wait_stat() helperBartlomiej Zolnierkiewicz2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Split off checking of the status register from ide_wait_stat() to __ide_wait_stat() helper. * Use the new helper in ide_config_drive_speed(). The only change in the functionality is that the function now fails if after 20 sec (WAIT_CMD) device is still busy (BUSY_STAT bit is set) while previously instead of failing the function continued with checking for the correct device status (which would give the device additional 10 usec to clear BUSY_STAT bit). * Remove stale comment for ide_config_drive_speed(). * Remove duplicate comment for ide_wait_stat() from <linux/ide.h>. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | | Merge git://git.infradead.org/mtd-2.6Linus Torvalds2007-10-13
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (91 commits) [MTD] [NAND] Blackfin on-chip NAND Flash Controller driver [MTD] [NOR] fix ctrl-alt-del can't reboot for intel flash bug [MTD] [NAND] Fix compiler warning in Alauda driver [JFFS2] Remove stray debugging printk [JFFS2] Handle dirents on the flash with embedded zero bytes in names. [JFFS2] Check for creation of dirents with embedded zero bytes in name. [JFFS2] Don't count all 'very dirty' blocks except in debug mode [JFFS2] Check whether garbage-collection actually obsoleted its victim. [JFFS2] Relax threshold for triggering GC due to dirty blocks. [MTD] [OneNAND] Fix typo related with recent commit [JFFS2] Trigger garbage collection when very_dirty_list size becomes excessive [MTD] [NAND] Avoid deadlock in erase callback; release chip lock first. [MTD] [NAND] Resume method for CAFÉ NAND controller [MTD] [NAND] Fix PCI ident table for CAFÉ NAND controller. [MTD] [NAND] s3c2410: fix arch moves [MTD] [OneNAND] fix numerous races [MTD] map driver for NOR flash on the Intel Vermilion Range chipset [JFFS2] Fix unpoint length [MTD] fix CFI point method for discontiguous maps [MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver ...
| * | | Merge branch 'master' of ↵David Woodhouse2007-10-13
| |\| | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | Merge Linux 2.6.23David Woodhouse2007-10-13
| |\ \ \
| * | | | [MTD] [NAND] Blackfin on-chip NAND Flash Controller driverBryan Wu2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the driver for latest Blackfin on-chip nand flash controller - use nand_chip and mtd_info common nand driver interface - provide both PIO and dma operation - compiled with ezkit bf548 configuration - use hardware 1-bit ECC - tested with YAFFS2 and can mount YAFFS2 filesystem as rootfs ChangeLog from try#1 - use hweight32() instead of count_bits() - replace bf54x with bf5xx and BF54X with BF5XX - compare against plat->page_size in 2 cases when enable hardware ECC ChangeLog from try#2 - passed nand_test suites - use cpu_relax() instead of busy wait loop - some coding style issue pointed out by Andrew Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] [NOR] fix ctrl-alt-del can't reboot for intel flash bugKevin Hao2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we press ctrl-alt-del,kernel_restart_prepare will invoke cfi_intelext_reboot which will set flash to read array mode, but later when device_shutdown is invoked which may put current work queue to sleep and other process may be scheduled to running and programming flash in not FL_READY mode again. So we can't boot up if this flash is used for bootloader. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] Document erase interface.Jörn Engel2007-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Document mtd erase interface. Signed-off-by: Jörn Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] Fix CFI build error when no map width or interleave supportedDavid Woodhouse2007-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building NOR flash support, you have compile-time options for the bus width and the number of individual chips which are interleaved together onto that bus. The code to deal with arbitrary geometry is a bit convoluted, and people want to just configure it for the specific hardware they have, to avoid the runtime overhead. Selecting _none_ of the available options doesn't make any sense. You should have at least one. This makes it build though, since people persist in trying. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | Merge branch 'master' of ↵David Woodhouse2007-08-23
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * \ \ \ \ Merge branch 'master' of ↵David Woodhouse2007-08-02
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * \ \ \ \ \ Merge branch 'master' of ↵David Woodhouse2007-08-01
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | | | | [MTD] [NAND] Add NAND manufacturer AMD.Steven J. Hill2007-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the manufacturer ID for AMD flash. Signed-off-by: Steven J. Hill <sjhill1@rockwellcollins.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | | | | Merge branch 'master' of ↵David Woodhouse2007-07-23
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | | | | | [JFFS2] Add LZO compression support.Richard Purdie2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add LZO1X compression/decompression support to jffs2. LZO's interface doesn't entirely match that required by jffs2 so a buffer and memcpy is unavoidable. Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | | | | | Merge branch 'master' of ↵David Woodhouse2007-07-11
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * \ \ \ \ \ \ \ \ Merge branch 'master' of ↵David Woodhouse2007-07-04
| |\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | | | | | | | [MTD] [OneNAND] 2X program supportKyungmin Park2007-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 2X Program is an extension of Program Operation. Since the device is equipped with two DataRAMs, and two-plane NAND Flash memory array, these two component enables simultaneous program of 4KiB. Plane1 has only even blocks such as block0, block2, block4 while Plane2 has only odd blocks such as block1, block3, block5. So MTD regards it as 4KiB page size and 256KiB block size Now the following chips support it. (KFXXX16Q2M) Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, Mux: KFM2G16Q2M, KFN4G16Q2M, And more recent chips Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | | | | | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2007-10-13
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (106 commits) KVM: Replace enum by #define KVM: Skip pio instruction when it is emulated, not executed KVM: x86 emulator: popf KVM: x86 emulator: fix src, dst value initialization KVM: x86 emulator: jmp abs KVM: x86 emulator: lea KVM: X86 emulator: jump conditional short KVM: x86 emulator: imlpement jump conditional relative KVM: x86 emulator: sort opcodes into ascending order KVM: Improve emulation failure reporting KVM: x86 emulator: pushf KVM: x86 emulator: call near KVM: x86 emulator: push imm8 KVM: VMX: Fix exit qualification width on i386 KVM: Move main vcpu loop into subarch independent code KVM: VMX: Move vm entry failure handling to the exit handler KVM: MMU: Don't do GFP_NOWAIT allocations KVM: Rename kvm_arch_ops to kvm_x86_ops KVM: Simplify memory allocation KVM: Hoist SVM's get_cs_db_l_bits into core code. ...
| * | | | | | | | | | | KVM: Replace enum by #defineAvi Kivity2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Easier for existence test (#ifdef) in userspace. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: in-kernel LAPIC save and restore supportEddie Dong2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new vcpu-based IOCTL to save and restore the local apic registers for a single vcpu. The kernel only copies the apic page as a whole, extraction of registers is left to userspace side. On restore, the APIC timer is restarted from the initial count, this introduces a little delay, but works fine. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: in-kernel IOAPIC save and restore supportHe, Qing2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for in-kernel ioapic save and restore (to and from userspace). It uses the same get/set_irqchip ioctl as in-kernel PIC. Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Add get/set irqchip ioctls for in-kernel PIC live migration supportHe, Qing2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds two new ioctls to dump and write kernel irqchips for save/restore and live migration. PIC s/r and l/m is implemented in this patch. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Emulate hlt in the kernelEddie Dong2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By sleeping in the kernel when hlt is executed, we simplify the in-kernel guest interrupt path considerably. Signed-off-by: Gregory Haskins <ghaskins@novell.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Emulate local APIC in kernelEddie Dong2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because lightweight exits (exits which don't involve userspace) are many times faster than heavyweight exits, it makes sense to emulate high usage devices in the kernel. The local APIC is one such device, especially for Windows and for SMP, so we add an APIC model to kvm. It also allows in-kernel host-side drivers to inject interrupts without going through userspace. [compile fix on i386 from Jindrich Makovicka] Signed-off-by: Yaozu (Eddie) Dong <Eddie.Dong@intel.com> Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Add support for in-kernel PIC emulationEddie Dong2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Communicate cr8 changes to userspaceYang, Sheng2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows running 64-bit Windows. Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: add hypercall nr to kvm_runJeff Dike2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the hypercall number to kvm_run and initialize it. This changes the ABI, but as this particular ABI was unusable before this no users are affected. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Use standard CR8 flags, and fix TPR definitionRusty Russell2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel manual (and KVM definition) say the TPR is 4 bits wide. Also fix CR8_RESEVED_BITS typo. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Trivial: Use standard BITMAP macros, open-code userspace-exposed headerRusty Russell2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Creating one's own BITMAP macro seems suboptimal: if we use manual arithmetic in the one place exposed to userspace, we can use standard macros elsewhere. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Trivial: /dev/kvm interface is no longer experimental.Rusty Russell2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KVM interface is no longer experimental. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | KVM: Future-proof the exit information union ABIAvi Kivity2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note that as the size of struct kvm_run is not part of the ABI, we can add things at the end. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | | | | | | | | | | i386: Expose IOAPIC register definitions even if CONFIG_X86_IO_APIC is not setAvi Kivity2007-10-13
| | |_|_|_|_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KVM reuses the IOAPIC register definitions, and needs them even if the host is not compiled with IOAPIC support. Move the #ifdef below so that only the IOAPIC variables and functions are protected, and the register definitions are available to all. Signed-off-by: Avi Kivity <avi@qumranet.com>
* | | | | | | | | | | fix sparc32 breakage (result of vmlinux.lds.S bug)Al Viro2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 4665079cbb2a3e17de82f2ab2940b9f97f37d65e ("[NETNS]: Move some code into __init section when CONFIG_NET_NS=n") we got a new section - .exit.text.refok (more of 'let's tell modpost that some bogus calls are not bogus', a-la text.init.refok). Unfortunately, the commit in question forgot to add it to TEXT_TEXT, with rather amusing results. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | v4l: copy_to_user() is not a good method nameAl Viro2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Breaks on any target that has copy_to_user() defined as a non-trivial macro. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | minimal build fixes for uml (fallout from x86 merge)Al Viro2007-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a) include/asm-um/arch can't just point to include/asm-$(SUBARCH) now b) arch/{i386,x86_64}/crypto are merged now c) subarch-obj needed changes d) cpufeature_64.h should pull "cpufeature_32.h", not <asm/cpufeature_32.h> since it can be included from asm-um/cpufeature.h e) in case of uml-i386 we need CONFIG_X86_32 for make and gcc, but not for Kconfig f) sysctl.c shouldn't do vdso_enabled for uml-i386 (actually, that one should be registered from corresponding arch/*/kernel/*, with ifdef going away; that's a separate patch, though). With that and with Stephen's patch ("[PATCH net-2.6] uml: hard_header fix") we have uml allmodconfig building both on i386 and amd64. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 10:37:18 -0500