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* Merge branch 'merge' of ↵Linus Torvalds2009-01-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (29 commits) powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/ powerpc/83xx: Make serial ports work on MPC8315E-RDB w/ FSL U-Boots powerpc/e500mc: Doorbells need to be taken w/exceptions disabled powerpc: Enable PS3 options and QPACE in ppc64_defconfig powerpc/powermac: Fix occasional SMP boot failure powerpc/cacheinfo: Rename cache_dir per-cpu variable hvc_console: Use kzalloc() instead of kmalloc() + memset() hvc_console: Do not set low_latency when using interrupts hvc_console: Call free_irq() only if request_irq() was successful hvc_console: Change an mb() to smp_mb() and add some comments powerpc: Cleanup from l64 to ll64 change: drivers/net powerpc: Cleanup from l64 to ll64 change: drivers/char powerpc: Cleanup from l64 to ll64 change: arch code powerpc: Change u64/s64 to a long long integer type powerpc/kexec: Check crash_base for relocatable kernel powerpc: Make dummy section a valid note header Xilinx: SPI: updated driver for device tree drivers/of: Add the of_find_i2c_device_by_node function. powerpc/xsysace: add compatible string for non-ipcore instance powerpc/mpc52xx: remove dead code from GPIO driver ...
| * powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/Anton Vorontsov2009-01-13
| | | | | | | | | | | | | | | | | | | | This patch is used to help Jean Delvare to get rid of drivers/i2c/chips/ directory. The new location suggested by Kumar Gala: as the driver is 83xx specific it's placed into arch/powerpc/platforms/83xx/. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/83xx: Make serial ports work on MPC8315E-RDB w/ FSL U-BootsAnton Vorontsov2009-01-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FSL U-Boots use /soc8315@e0000000 node to search and fixup serial nodes' clock-frequency properties. Though in upstream kernels we use new naming convention -- for IMMR address space dts files specify /immr@e0000000 nodes. This makes FSL U-Boots fail to fixup the clock frequencies, and that leads to serial ports misbehaviour. We can workaround the issue by filling the clock frequency values manually. p.s. For the same reason FSL U-Boots fail to fixup MAC addresses for ethernet nodes, so users should either change the .dts file locally or set MAC address via `ifconfig hw ether' command. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/e500mc: Doorbells need to be taken w/exceptions disabledKumar Gala2009-01-13
| | | | | | | | | | | | | | | | We use Doorbell interrupts for IPIs and thus we need to make sure we aren't interrupted in the process of processing the IPI. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Dave Liu <daveliu@freescale.com>
| * powerpc: Enable PS3 options and QPACE in ppc64_defconfigMichael Ellerman2009-01-12
| | | | | | | | | | | | | | To increase the amount of code that's built for a defconfig build. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powermac: Fix occasional SMP boot failureBenjamin Herrenschmidt2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PowerMac kernel occasionally fails to bring up the secondary CPUs on SMP, the trigger factor seem to be fairly random and related to location of code and data. This appears to be due to the initial loading of the TOC value by the secondary processor which now happens before we clear HID4:RM_CI (Real Mode Cache Invalidate). This bit should really be cleared before we do any load or store other than fetching code. This fix works based on the assumption that all SMP 64-bit PowerMacs use variants of the 970, which fortunately is true, by explicitely clearing that bit, adding an slbia for good measure as RM_CI mode is known to create bogus ERAT entries. I also removed some spurrious debug output that was left enabled by mistake while at it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/cacheinfo: Rename cache_dir per-cpu variableNathan Lynch2009-01-12
| | | | | | | | | | | | | | | | The per_cpu__ prefix on DECLARE_PER_CPU'd variables is going away; rename cache_dir to cache_dir_pcpu. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * hvc_console: Use kzalloc() instead of kmalloc() + memset()Milton Miller2009-01-12
| | | | | | | | | | | | | | Replace kmalloc() + memset() with kzalloc(). Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * hvc_console: Do not set low_latency when using interruptsMilton Miller2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hvc_console is setting low_latency unconditionally, but some clients are interrupt driven and will call hvc_poll from irq context. This will cause tty_flip_buffer_push to be called from irq context, and it very clearly states it must not be called from IRQ when low_latency is specified. Looking back through history: v2.6.16-rc1 via 33f0f88f1c51ae5c2d593d26960c760ea154c2e2 [PATCH] TTY layer buffering revamp added this new api. v2.6.16-rc3 via 8977d929e49021d9a6e031310aab01fa72f849c2 [PATCH] tty buffering stall fix claims to fix a stall discovered with hvc_console v2.6.16-rc5 via fb5c594c2acc441f0d2d8f457484a0e0e9285db3 [PATCH] Fix race condition in hvc console. said set this flag to avoid a stall problem, and was merged through the powerpc arch tree. Without searching for email discussions, it would appear to be an overlapping "fix", but one that did not consider all users. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * hvc_console: Call free_irq() only if request_irq() was successfulMilton Miller2009-01-12
| | | | | | | | | | | | | | | | Only call free_irq if we marked the request_irq has having succeeded instead of whenever the the sub-driver identified the interrupt to use. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * hvc_console: Change an mb() to smp_mb() and add some commentsMilton Miller2009-01-12
| | | | | | | | | | | | | | | | | | | | I remember some history on this barrier. There was a race between open via /dev/console and the tty being fully setup. Its also why there is a temporary variable and the global is assigned at the end of the function. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Cleanup from l64 to ll64 change: drivers/netStephen Rothwell2009-01-12
| | | | | | | | | | | | | | | | These are powerpc specific drivers. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Cleanup from l64 to ll64 change: drivers/charStephen Rothwell2009-01-12
| | | | | | | | | | | | | | This is a powerpc specific driver. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Cleanup from l64 to ll64 change: arch codeStephen Rothwell2009-01-12
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Change u64/s64 to a long long integer typeIngo Molnar2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert arch/powerpc/ over to long long based u64: -#ifdef __powerpc64__ -# include <asm-generic/int-l64.h> -#else -# include <asm-generic/int-ll64.h> -#endif +#include <asm-generic/int-ll64.h> This will avoid reoccuring spurious warnings in core kernel code that comes when people test on their own hardware. (i.e. x86 in ~98% of the cases) This is what x86 uses and it generally helps keep 64-bit code 32-bit clean too. [Adjusted to not impact user mode (from paulus) - sfr] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/kexec: Check crash_base for relocatable kernelMilton Miller2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enforce that the crash kernel region never overlaps the current kernel, as it will be written directly on kexec load. Also, default to the previous KDUMP_KERNELBASE if the start is 0. Other architectures (x86, ia64) state that specifying the start address 0 (or omitting it) will result in the kernel allocating it. Before the relocatable patch in 2.6.28, powerpc would adjust any other start value to the hardcoded KDUMP_KERNELBASE of 32M. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Make dummy section a valid note headerMilton Miller2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are declaring the dummy section (used to work around a binutils bug) as PT_NOTE, but we don't have enough bytes for it to be a valid note header, and kexec userspace complains: Warning: Elf Note name is not null terminated Warning: append= option is not passed. Using the first kernel root partition Warning: Elf Note name is not null terminated Instead of using the arbitray value 0xf177 (aka "fill"), declare a no-name no-description note of type 0. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * Merge commit 'gcl/gcl-next' into nextBenjamin Herrenschmidt2009-01-12
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| | * Xilinx: SPI: updated driver for device treeJohn Linn2009-01-09
| | | | | | | | | | | | | | | | | | The driver was updated to use the device tree rather than the platform data. Signed-off-by: John Linn <john.linn@xilinx.com>
| | * drivers/of: Add the of_find_i2c_device_by_node function.Jon Smirl2009-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The of_find_i2c_device_by_node function allows you to follow a reference in the device tree to an i2c device node and then locate the linux device instantiated by the device tree. Example use: an I2S bus driver finding the i2c_device instance for a codec described by a device tree node. This was waiting for Anton's i2c patches that were just added. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/xsysace: add compatible string for non-ipcore instanceYuri Tikhonov2009-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add "xlnx,sysace" compatible string to the of_platform binding table. Platforms which have the SysACE chip on board (e.g. Katmai) instead of via a Xilinx generated IP core will use this value in their device tree. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/mpc52xx: remove dead code from GPIO driverWolfram Sang2009-01-09
| | | | | | | | | | | | | | | | | | | | | Eliminate duplicate return statements Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/mpc52xx: Properly update irq_desc when set_type() is called.Grant Likely2009-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MPC5200 PIC driver doesn't correctly update the .status field of the irq_desc structure when the set_type hook is called. This patch adds the required code. Also cleans up the external IRQ typename field to be something easier to read (very minor). Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/mpc5121: fix NULL test in mpc5121_clk_get utility function.roel kluin2009-01-09
| | | | | | | | | | | | | | | | | | | | | | | | strcmp on NULL results in a segmentation fault, also, remove the second, redundant test on dev Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | Merge commit 'kumar/kumar-next' into nextBenjamin Herrenschmidt2009-01-12
| |\ \
| | * | powerpc/fsl-booke: Remove num_tlbcam_entriesTrent Piepho2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a global variable defined in fsl_booke_mmu.c with a value that gets initialized in assembly code in head_fsl_booke.S. It's never used. If some code ever does want to know the number of entries in TLB1, then "numcams = mfspr(SPRN_TLB1CFG) & 0xfff", is a whole lot simpler than a global initialized during kernel boot from assembly. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/fsl-booke: Don't hard-code size of struct tlbcamTrent Piepho2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some assembly code in head_fsl_booke.S hard-coded the size of struct tlbcam to 20 when it indexed the TLBCAM table. Anyone changing the size of struct tlbcam would not know to expect that. The kernel already has a system to get the size of C structures into assembly language files, asm-offsets, so let's use it. The definition of the struct gets moved to a header, so that asm-offsets.c can include it. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/fsl-pci: Set relaxed ordering on prefetchable rangesTrent Piepho2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provides a small speedup when accessing pefetchable ranges. To indicate that a memory range is prefetchable, mark it in the dts file with 42000000 instead of 02000000. A powepc pci_controller is allowed three memory ranges, any of which may be prefetchable. However, the PCI-PCI bridge configuration space only has one field for "non-prefetchable memory behind bridge", which has a 32 bit address, and one field for "prefetchable memory behind bridge", which may have a 64 bit address. These are PCI bus addresses, not CPU physical addresses. So really you're only allowed one memory range of each type. And if you want the range at a PCI address above 32 bits you must make it prefetchable. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/fsl-pci: Better ATMU setup for 85xx/86xxTrent Piepho2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code that sets up the outbound ATMU windows, which is used to map CPU physical addresses into PCI bus addresses where BARs will be mapped, didn't work so well. For one, it leaked the ioremap() of the ATMU registers. Another small bug was the high 20 bits of the PCI bus address were left as zero. It's legal for prefetchable memory regions to be above 32 bits, so the high 20 bits might not be zero. Mainly, it couldn't handle ranges that were not a power of two in size or were not naturally aligned. The ATMU windows have these requirements (size & alignment), but the code didn't bother to check if the ranges it was programming met them. If they didn't, the windows would silently be programmed incorrectly. This new code can handle ranges which are not power of two sized nor naturally aligned. It simply splits the ranges into multiple valid ATMU windows. As there are only four windows, pooly aligned or sized ranges (which didn't even work before) may run out of windows. In this case an error is printed and an effort is made to disable the unmapped resources. An improvement that could be made would be to make use of the default outbound window. Iff hose->pci_mem_offset is zero, then it's possible that some or all of the ranges might not need an outbound window and could just use the default window. The default ATMU window can support a pci_mem_offset less than zero too, but pci_mem_offset is unsigned. One could say the abilities allowed a powerpc pci_controller is neither subset nor a superset of the abilities of a Freescale PCIe controller. Thankfully, the most useful bits are in the intersection of the two abilities. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/qe: add Ethernet UPSMR definitions to QE libraryTimur Tabi2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the UCC_GETH_UPSMR_xxx definitions to qe.h. The ucc_geth driver will eventually use these instead of the UPSMR_ macros it currently defines. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/85xx: Fix PCIe error interruptsKumar Gala2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCIe interrupts for 8544ds and 8572ds were incorrect. The 8572 case was found by Liu Yu. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc: Fix the ide suspend function in uli1575Jason Jin2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The general pci resume code can only restore part of the configuration registers. We need to reconfigure those registers in the FIXUP_RESUME. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | | Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2009-01-14
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (44 commits) [CVE-2009-0029] s390 specific system call wrappers [CVE-2009-0029] System call wrappers part 33 [CVE-2009-0029] System call wrappers part 32 [CVE-2009-0029] System call wrappers part 31 [CVE-2009-0029] System call wrappers part 30 [CVE-2009-0029] System call wrappers part 29 [CVE-2009-0029] System call wrappers part 28 [CVE-2009-0029] System call wrappers part 27 [CVE-2009-0029] System call wrappers part 26 [CVE-2009-0029] System call wrappers part 25 [CVE-2009-0029] System call wrappers part 24 [CVE-2009-0029] System call wrappers part 23 [CVE-2009-0029] System call wrappers part 22 [CVE-2009-0029] System call wrappers part 21 [CVE-2009-0029] System call wrappers part 20 [CVE-2009-0029] System call wrappers part 19 [CVE-2009-0029] System call wrappers part 18 [CVE-2009-0029] System call wrappers part 17 [CVE-2009-0029] System call wrappers part 16 [CVE-2009-0029] System call wrappers part 15 ...
| * | | | [CVE-2009-0029] s390 specific system call wrappersHeiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 33Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 32Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 31Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 30Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 29Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 28Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 27Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 26Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 25Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 24Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 23Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 22Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 21Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 20Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 19Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | [CVE-2009-0029] System call wrappers part 18Heiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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