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* Merge branch 'for-linus' of ↵Linus Torvalds2010-04-292-38/+5
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI: compute Address Space length rather than using _LEN x86/PCI: never allocate PCI MMIO resources below BIOS_END
| * x86/PCI: compute Address Space length rather than using _LENBjorn Helgaas2010-04-281-38/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI _CRS Address Space Descriptors have _MIN, _MAX, and _LEN. Linux has been computing Address Spaces as [_MIN to _MIN + _LEN - 1]. Based on the tests in the bug reports below, Windows apparently uses [_MIN to _MAX]. Per spec (ACPI 4.0, Table 6-40), for _CRS fixed-size, fixed location descriptors, "_LEN must be (_MAX - _MIN + 1)", and when that's true, it doesn't matter which way we compute the end. But of course, there are BIOSes that don't follow this rule, and we're better off if Linux handles those exceptions the same way as Windows. This patch makes Linux use [_MIN to _MAX], as Windows seems to do. This effectively reverts d558b483d5 and 03db42adfe and replaces them with simpler code. https://bugzilla.kernel.org/show_bug.cgi?id=14337 (round) https://bugzilla.kernel.org/show_bug.cgi?id=15480 (truncate) Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * x86/PCI: never allocate PCI MMIO resources below BIOS_ENDBjorn Helgaas2010-04-261-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When we move a PCI device or assign resources to a device not configured by the BIOS, we want to avoid the BIOS region below 1MB. Note that if the BIOS places devices below 1MB, we leave them there. See https://bugzilla.kernel.org/show_bug.cgi?id=15744 and https://bugzilla.kernel.org/show_bug.cgi?id=15841 Tested-by: Andy Isaacson <adi@hexapodia.org> Tested-by: Andy Bailey <bailey@akamai.com> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | arch/avr32: fix build failure caused by wrong prototypePeter Huewe2010-04-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a build failure introduced by 1d8393171 ("avr32: use generic ptrace_resume code") which had the static keyword as a leftover. arch/avr32/kernel/ptrace.c:32: error: static declaration of `user_enable_single_step' follows non-static declaration include/linux/ptrace.h:268: error: previous declaration of `user_enable_single_step' was here References: [1]http://kisskb.ellerman.id.au/kisskb/buildresult/2448162/ Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds2010-04-2734-124/+113
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (39 commits) omap: delete unused bootloader tag variables omap: Devkit8000: Remove unused pins omap: Devkit8000: Change position of init calls omap: Devkit8000: Remove unnecessary include file omap: Devkit8000: Fix typo in pin name omap: Devkit8000: Add missing package selection omap: Devkit8000: Fix typo in supplies n8x0_defconfig: remove CONFIG_NILFS2_FS override omap: board-sdp-flash.c: Fix typos in debug output omap4: Fix McBSP4 base address omap: rx51_defconfig: Remove CONFIG_SYSFS_DEPRECATED*=y options omap: rx51_defconfig: Remove duplicate phonet omap: fix a gpmc nand problem AM3517: initialize i2c subsystem after mux subsystem omap: remove one of the define of INT_34XX_BENCH_MPU_EMUL omap: fix the compile error if CONFIG_MTD_NAND_OMAP2 is notenabled OMAP4: Clocks: Change SPI Instance Names omap: Devkit8000: Fix wrong usb port on Devkit8000 OMAP4: Fix for CONTROL register Base OMAP4-HSMMC: FIX for MMC5 Controller IRQ Base ...
| * omap: delete unused bootloader tag variablesAaro Koskinen2010-04-241-3/+0
| | | | | | | | | | | | | | They are not needed and add over 512 bytes to kernel data. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Remove unused pinsThomas Weber2010-04-241-20/+0
| | | | | | | | | | | | | | | | Old code from original patch contains beagle board pins that are not available on the Devkit8000. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Change position of init callsThomas Weber2010-04-241-4/+4
| | | | | | | | | | | | | | Change position of calling serial and ethernet initialization. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Remove unnecessary include fileThomas Weber2010-04-241-1/+0
| | | | | | | | | | | | | | Remove include otg.h. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Fix typo in pin nameThomas Weber2010-04-241-2/+2
| | | | | | | | | | | | | | Replace wrong sdr_cke[01] with sdrc_cke[01]. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Add missing package selectionThomas Weber2010-04-241-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Devkit8000 uses the CUS package for OMAP3530. This patch adds missing package selection for CUS and enables CONFIG_MUX. Replace whitespace with tab in Kconfig. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Fix typo in suppliesThomas Weber2010-04-241-1/+1
| | | | | | | | | | | | | | Replace wrong vdss_dsi with vdds_dsi. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * n8x0_defconfig: remove CONFIG_NILFS2_FS overrideFrancisco Alecrim2010-04-241-1/+0
| | | | | | | | | | | | | | | | arch/arm/configs/n8x0_defconfig:1061:warning: override: reassigning to symbol NILFS2_FS Signed-off-by: Francisco Alecrim <francisco.alecrim@openbossa.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: board-sdp-flash.c: Fix typos in debug outputThomas Weber2010-04-241-4/+4
| | | | | | | | | | | | | | | | | | Corrected type of flash in output (OneNAND => NOR). Removed whitespace after newline in output. Removed double whitespace in output. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap4: Fix McBSP4 base addressSantosh Shilimkar2010-04-241-1/+1
| | | | | | | | | | | | | | This patch fixes the McBSP4 base address for OMAP4 Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: rx51_defconfig: Remove CONFIG_SYSFS_DEPRECATED*=y optionsJarkko Nikula2010-04-241-2/+0
| | | | | | | | | | | | | | | | | | Modern udev will not work with the CONFIG_SYSFS_DEPRECATED*=y options and it seems also that the Maemo release works without when testing with the Maemo 2.6.28 kernel. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: rx51_defconfig: Remove duplicate phonetJarkko Nikula2010-04-241-1/+0
| | | | | | | | | | | | | | | | | | Phonet is enabled by the commit bce54fed941e03695ab557100a4bd1e457abca42 and this duplicate gives a warning when doing make rx51_defconfig. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: fix a gpmc nand problemstanley.miao2010-04-241-0/+3
| | | | | | | | | | | | | | | | If gpmc_t isn't given, we don't need to set timing for gpmc, or it will cause a Oops. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * AM3517: initialize i2c subsystem after mux subsystemstanley.miao2010-04-241-2/+2
| | | | | | | | | | | | | | | | The initialize of i2c subsystem will set pinmux, so it should be done after the initialize of mux subsystem initialization. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: remove one of the define of INT_34XX_BENCH_MPU_EMULstanley.miao2010-04-241-2/+0
| | | | | | | | | | | | | | INT_34XX_BENCH_MPU_EMUL was defined twice, another is at Line 312. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: fix the compile error if CONFIG_MTD_NAND_OMAP2 is notenabledstanley.miao2010-04-241-0/+7
| | | | | | | | | | | | | | | | If CONFIG_MTD_NAND_OMAP2 is not enabled, there will be a compile error, "gpmc_nand_init() is not defined". Add a inline noop function to fix it. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * OMAP4: Clocks: Change SPI Instance NamesAbraham Arce2010-04-241-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | Change the name for the spi instances on omap44xx_clks to match the names omap2 spi driver gives: omap-mcspi.1 -> omap2_mcspi.1 omap-mcspi.2 -> omap2_mcspi.2 omap-mcspi.3 -> omap2_mcspi.3 omap-mcspi.4 -> omap2_mcspi.4 Signed-off-by: Abraham Arce <x0066660@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Devkit8000: Fix wrong usb port on Devkit8000Thomas Weber2010-04-241-2/+2
| | | | | | | | | | | | | | | | Disable the nonexistent ehci port on Devkit8000. Signed-off-by: Thomas Weber <weber@corscience.de> Acked-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * OMAP4: Fix for CONTROL register BaseSantosh Shilimkar2010-04-241-1/+1
| | | | | | | | | | | | | | | | | | This patch fixes the base address of CONTROL register on OMAP4430SDP. The control base is used by peripherals like MMC1 for PBIAS configuration. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * OMAP4-HSMMC: FIX for MMC5 Controller IRQ Basekishore kadiyala2010-04-241-1/+1
| | | | | | | | | | | | | | This patch fixes HSMMC Controller5 IRQ Base. Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap3: Fix EHCI port for IGEP v2 boardEnric Balletbo i Serra2010-04-241-4/+4
| | | | | | | | | | | | | | | | IGEP v2 uses EHCI port 1 instead of EHCI port 2. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Fix n8x0 mmc_mmc_init compile warnings and typosTony Lindgren2010-04-241-9/+9
| | | | | | | | | | | | | | Fix warning: 'return' with a value, in function returning void in n8x0_mmc_init. Also fix a search and replace typo. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap2: Fix ARM processor check for 24xxTony Lindgren2010-04-241-1/+1
| | | | | | | | | | | | | | | | The value to check is 7 for V6 instead. The code has been working as it falls through to 24xx code if the other checks fail. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap4: Fix build break when used with gcc-4.4.1 (2009-q3)Richard Woodruff2010-04-242-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds argument to smc calls as gcc-4.4.1 requires it otherwise the build breaks with 2009-q3 toolchanin. arch/arm/mach-omap2/omap-headsmp.S: Assembler messages: arch/arm/mach-omap2/omap-headsmp.S:36: Error: missing expression -- `smc' arch/arm/mach-omap2/omap-headsmp.S:55: Error: missing expression -- `smc' arch/arm/mach-omap2/omap-headsmp.S:63: Error: missing expression -- `smc' make[1]: *** [arch/arm/mach-omap2/omap-headsmp.o] Error 1 Signed-off-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: DMA: Init CDAC to zeromanjugk manjugk2010-04-231-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | The register DMA4_CDAC needs to be initialized to zero before starting DMA transfer. Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Govindraj R <govindraj.raja@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Reported-by:S, Venkatraman <svenkatr@ti.com> Signed-off-by: Manjunatha GK <manjugk@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: gpio: fix incorrect matching of IRQ_TYPE_EDGE_BOTHJanusz Krzysztofik2010-04-231-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Since IRQ_TYPE_EDGE_BOTH is defined as (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING), testing against it with a bitwise AND also matches both single-edge cases in addition to the intended both edges case. Fix it, replacing with a more accurate expression. Created and tested againts linux-2.6.34-rc3. Applicable to 2.6.33-stable as well. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * arm: omap1: remove dead code from timer32k.cFelipe Balbi2010-04-231-15/+0
| | | | | | | | | | | | | | Trivial patch, no functional changes Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: fix clocksource_32k to start from zeroAaro Koskinen2010-04-231-5/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the 32k sync timer is used for sched_clock(), it should count time from the kernel boot (clocksource init) instead of the last HW reset. Otherwise printk.time values will jump suddenly during the boot: [ 0.000000] calling omap2_clk_arch_init+0x0/0x138 @ 1 [ 0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned -22 after 0 usecs [ 0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned with error code -22 [ 0.000000] calling omap_init_clocksource_32k+0x0/0x98 @ 1 [ 508.697937] initcall omap_init_clocksource_32k+0x0/0x98 returned 0 after 0 usecs [ 508.697967] calling omap_init_devices+0x0/0x38 @ 1 [ 508.698425] initcall omap_init_devices+0x0/0x38 returned 0 after 0 usecs This will confuse tools such as scripts/bootgraph.pl. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * Merge branch 'for_2.6.34rc_a' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren2010-04-2259-127/+366
| |\ | | | | | | | | | omap-fixes-for-linus
| | * OMAP3: clock: fix enable bit used for dpll4_m4x2 clockRanjith Lohithakshan2010-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The enable bit for dpll4_m4x2 clock should be OMAP3430_PWRDN_DSS1_SHIFT. The code erroneously uses OMAP3430_PWRDN_CAM_SHIFT which is meant for dpll4_m5x2 clock. This came into notice during a recent review of the clock tree. Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * OMAP4: prcm: Use logical OR instead of bitwise ORRajendra Nayak2010-03-313-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes usage of bitwise OR in if conditions, and instead uses logical OR. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Cc: Abhijit Pagare <abhijitpagare@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * OMAP: HWMOD: Bug fixes in hwmod structure definitionsThara Gopinath2010-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects the width of sysc_flags in hwmod sysconfig structure where the values to be stored to this variable exceed the current field width. Signed-off-by: Thara Gopinath <thara@ti.com> [paul@pwsan.com: edited to apply; rearranged structure members to pack] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * OMAP: HWMOD: Adding clockdomain checkThara Gopinath2010-03-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds check for presence of clockdomain structure in the API omap_hwmod_get_pwrdm before trying to access the powerdomain structure. This will prevent unnecessary crashing of the system in case of a clock node with out an associated clockdomain. Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | Merge branch 'omap-fixes-for-tony' of ↵Tony Lindgren2010-03-226-21/+22
| |\ \ | | | | | | | | | | | | git://dev.omapzoom.org/pub/scm/saaguirre/linux-omap-camera into omap-fixes-for-linus
| | * | omap3: zoom2/3: Register only 1 8250 portSergio Aguirre2010-03-152-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no more serial ports available, so, doesn't make sense to create 4 device nodes. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | omap3: zoom 2/3: Change debugboard serial port idSergio Aguirre2010-03-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is now changed to PLAT8250_DEV_PLATFORM (= 0), because it's the only port that's going to be initialized in Zoom 2/3 boards. So, it doesn't make sense to keep the hardcoded 3 value anymore. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | omap3: 3630sdp: Explicitly enable all UARTsSergio Aguirre2010-03-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | All UARTs seem physically reachable, so, enable them all. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | omap3: zoom2/3 / 3630sdp: Don't init always all uartsSergio Aguirre2010-03-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is useless, since in Zoom2/3 boards, the ports aren't even physically accessible. They must be explicitly initted in the board-zoom2.c, board-zoom3.c and board-3630sdp.c files instead. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | omap2/3/4: serial: Remove condition for getting uart4_physSergio Aguirre2010-03-151-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This check is invalid, since we haven't filled the omap_revision var at this point. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | OMAP3: serial: Use dev_* macros instead of printkSergio Aguirre2010-03-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As we have a struct device populated at the time we are printing the errors, using dev_* macros makes more sense, as could give a better idea where the error/warning came from. Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
| | * | OMAP3: serial: Check for zero-based physical addrSergio Aguirre2010-03-151-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is for protecting a wrong mapping attempt of a zero-based physical address. The result is that, no serial port will be attempted to be mapped. Also add an additional protection for NULL clocks before attempting to enable them (if above condition applies) Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-04-241-7/+37
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: Ensure we re-enable devices on resume x86/PCI: parse additional host bridge window resource types PCI: revert broken device warning PCI aerdrv: use correct bit defines and add 2ms delay to aer_root_reset x86/PCI: ignore Consumer/Producer bit in ACPI window descriptions
| * | | | x86/PCI: parse additional host bridge window resource typesBjorn Helgaas2010-04-231-6/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for Memory24, Memory32, and Memory32Fixed descriptors in PCI host bridge _CRS. I experimentally determined that Windows (2008 R2) accepts these descriptors and treats them as windows that are forwarded to the PCI bus, e.g., if it finds any PCI devices with BARs outside the windows, it moves them into the windows. I don't know whether any machines actually use these descriptors in PCI host bridge _CRS methods, but if any exist and they're new enough that we automatically turn on "pci=use_crs", they will work with Windows but not with Linux. Here are the details: https://bugzilla.kernel.org/show_bug.cgi?id=15817 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | x86/PCI: ignore Consumer/Producer bit in ACPI window descriptionsBjorn Helgaas2010-04-081-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI Address Space Descriptors (used in _CRS) have a Consumer/Producer bit that is supposed to distinguish regions that are consumed directly by a device from those that are forwarded ("produced") by a bridge. But BIOSes have apparently not used this consistently, and Windows seems to ignore it, so I think Linux should ignore it as well. I can't point to any of these supposed broken BIOSes, but since we now rely on _CRS by default, I think it's safer to ignore this bit from the start. Here are details of my experiments with how Windows handles it: https://bugzilla.kernel.org/show_bug.cgi?id=15701 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | | VMware Balloon driverDmitry Torokhov2010-04-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a standalone version of VMware Balloon driver. Ballooning is a technique that allows hypervisor dynamically limit the amount of memory available to the guest (with guest cooperation). In the overcommit scenario, when hypervisor set detects that it needs to shuffle some memory, it instructs the driver to allocate certain number of pages, and the underlying memory gets returned to the hypervisor. Later hypervisor may return memory to the guest by reattaching memory to the pageframes and instructing the driver to "deflate" balloon. We are submitting a standalone driver because KVM maintainer (Avi Kivity) expressed opinion (rightly) that our transport does not fit well into virtqueue paradigm and thus it does not make much sense to integrate with virtio. There were also some concerns whether current ballooning technique is the right thing. If there appears a better framework to achieve this we are prepared to evaluate and switch to using it, but in the meantime we'd like to get this driver upstream. We want to get the driver accepted in distributions so that users do not have to deal with an out-of-tree module and many distributions have "upstream first" requirement. The driver has been shipping for a number of years and users running on VMware platform will have it installed as part of VMware Tools even if it will not come from a distribution, thus there should not be additional risk in pulling the driver into mainline. The driver will only activate if host is VMware so everyone else should not be affected at all. Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Cc: Avi Kivity <avi@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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