- 11 Jun, 2008 3 commits
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Valentine Barshak authored
The "ndfc-chip" device doesn't need any resources. All resources are handled by the "ndfc-nand" device. Registering the same memory resource twice causes "cat /proc/iomem" to go into an infinite loop displaying NDFC memory addresses. Signed-off-by:
Valentine Barshak <vbarshak@ru.mvista.com> Acked-by:
Stefan Roese <sr@denx.de> Acked-by:
Sean MacLennan <smaclennan@pikatech.com> Signed-off-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Imre Kaloz authored
Add support for the NOR flash found on the AMCC Taishan Board and enable MTD support in the defconfig. Signed-off-by:
Imre Kaloz <kaloz@openwrt.org> Acked-by:
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Josh Boyer authored
This reverts commit acb0142b. AMCC has indicated that the PPC 460GT does have FPU support. This revert enables the FPU for those chips again. Signed-off-by:
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- 10 Jun, 2008 1 commit
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Paul Mackerras authored
All the maintained platforms are now in arch/powerpc, so the old arch/ppc stuff can now go away. Acked-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Becky Bruce <becky.bruce@freescale.com> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by:
Geert Uytterhoeven <geert@linux-m68k.org> Acked-by:
Grant Likely <grant.likely@secretlab.ca> Acked-by:
Jochen Friedrich <jochen@scram.de> Acked-by:
John Linn <john.linn@xilinx.com> Acked-by:
Jon Loeliger <jdl@freescale.com> Acked-by:
Kumar Gala <galak@kernel.crashing.org> Acked-by:
Olof Johansson <olof@lixom.net> Acked-by:
Peter Korsgaard <jacmet@sunsite.dk> Acked-by:
Scott Wood <scottwood@freescale.com> Acked-by:
Segher Boessenkool <segher@kernel.crashing.org> Acked-by:
Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by:
Wolfgang Denk <wd@denx.de> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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- 09 Jun, 2008 21 commits
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Trent Piepho authored
Since commit 4cb3cee0 the code generated for the in_beXX() and out_beXX() mmio functions has been sub-optimal. The out_leXX() family of functions are created with the macro DEF_MMIO_OUT_LE() while the out_beXX() family are created with DEF_MMIO_OUT_BE(). In what was perhaps a bit too much macro use, both of these macros are in turn created via the macro DEF_MMIO_OUT(). For the LE versions, eventually they boil down to an asm that will look something like this: asm("sync; stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); The issue is that the "stwbrx" instruction only comes in an indexed, or 'x', version, in which the address is represented by the sum of two registers (the "0,%2"). Unfortunately, gcc doesn't have a constraint for an indexed memory reference. The "m" constraint allows both indexed and offset, i.e. register plus constant, memory references and there is no "stwbr" version for offset references. "m" also allows updating addresses and there is no 'u' version of "stwbrx" like there is with "stwux". The unused first operand to the asm is just to tell gcc that *addr is an output of the asm. The address used is passed in a single register via the third asm operand, and the index register is just hard coded as 0. This means gcc is forced to put the address in a single register and can't use index addressing, e.g. if one has the data in register 9, a base address in register 3 and an index in register 4, gcc must emit code like "add 11,4,3; stwbrx 9,0,11" instead of just "stwbrx 9,4,3". This costs an extra add instruction and another register. For gcc 4.0 and older, there doesn't appear to be anything that can be done. But for 4.1 and newer, there is a 'Z' constraint. It does not allow "updating" addresses, but does allow both indexed and offset addresses. However, the only allowed constant offset is 0. We can then use the undocumented 'y' operand modifier, which causes gcc to convert "0(reg)" into the equivilient "0,reg" format that can be used with stwbrx. This brings us the to problem with the BE version. In this case, the "stw" instruction does have both indexed and non-indexed versions. The final asm ends up looking like this: asm("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val), "r" (addr)); The undocumented codes "%U0" and "%0X" will generate a 'u' if the memory reference should be an auto-updating one, and an 'x' if the memory reference is indexed, respectively. The third operand is unused, it's just there because asm the code is reused from the LE version. However, gcc does not know this, and generates unnecessary code to stick addr in a register! To use the example from the LE version, gcc will generate "add 11,4,3; stwx 9,4,3". It is able to use the indexed address "4,3" for the "stwx", but still thinks it needs to put 4+3 into register 11, which will never be used. This also ends up happening a lot for the offset addressing mode, where common code like this: out_be32(&device_registers->some_register, data); uses an instruction like "stw 9, 42(3)", where register 3 has the pointer device_registers and 42 is the offset of some_register in that structure. gcc will be forced to generate the unnecessary instruction "addi 11, 3, 42" to put the address into a single (unused) register. The in_* versions end up having these exact same problems as well. Signed-off-by:
Trent Piepho <tpiepho@freescale.com> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Andreas Schwab <schwab@suse.de> Signed-off-by:
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Michael Ellerman authored
When I changed irq_alloc_host() to take an of_node (52964f87: "Add an optional device_node pointer to the irq_host"), I botched the reference counting semantics. Stephen pointed out that it's irq_alloc_host()'s business if it needs to take an additional reference to the device_node, the caller shouldn't need to care. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Michael Ellerman authored
If we do the call to of_address_to_resource() first, then we don't need to worry about freeing the irq_host (which the code doesn't do currently anyway). Signed-off-by:
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Michael Ellerman authored
If we do the call to of_address_to_resource() first, then we don't need to worry about freeing the irq_host (which the code doesn't do currently anyway). Signed-off-by:
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Michael Ellerman authored
If we do the call to irq_of_parse_and_map() first, then we don't need to worry about freeing the irq_host. Signed-off-by:
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Rune Torgersen authored
Make sure CONFIG_TASK_SIZE does not overlap CONFIG_KERNEL_START This could happen when overriding settings to get 1GB lowmem, and would lead to userland mysteriousely hanging. This setting is only used by PPC32. Signed-off-by:
Rune Torgersen <runet@innovsys.com> Acked-by:
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Stephen Rothwell authored
Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
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Stephen Rothwell authored
Signed-off-by:
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Emil Medve authored
This eliminates this minor boot-time debugging error message: [ 1.316451] calling add_pcspkr+0x0/0x84 [ 1.316478] initcall add_pcspkr+0x0/0x84 returned -19 after 0 msecs Signed-off-by:
Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by:
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Remi Machet authored
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 5 of 5: add the Kconfig entry for the C2K board. Signed-off-by:
Remi Machet <rmachet@slac.stanford.edu> Signed-off-by:
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Remi Machet authored
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 4 of 5: this is the default config for the board. In this configuration the kernel is going to try to boot from MTD partition 3 on the NOR flash (see c2k.dts for details about the partitioning of the flash). Signed-off-by:
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Remi Machet authored
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 3 of 5: driver for the board. At this time it is very generic and similar to its original, the driver for the prpmc2800. Signed-off-by:
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Remi Machet authored
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 2 of 5: support for the board in arch/powerpc/boot. Signed-off-by:
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Remi Machet authored
Support for the C2K cPCI Single Board Computer from GEFanuc (PowerPC MPC7448 with a Marvell MV64460 chipset). All features of the board are not supported yet, but the board boots, flash works, all Ethernet ports are working and PCI devices are all found (USB and SATA on PCI1 do not work yet). Part 1 of 5: DTS file describing the board peripherals. As far as I know all peripherals except the FPGA are listed in there (I did not include the FPGA because a lot of work is needed there). Signed-off-by:
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Anton Vorontsov authored
This fixes the following warning, introduced by commit 475ca391 (mpic: Deal with bogus NIRQ in Feature Reporting Register): CC arch/powerpc/sysdev/mpic.o arch/powerpc/sysdev/mpic.c: In function 'mpic_alloc': arch/powerpc/sysdev/mpic.c:1146: warning: suggest explicit braces to avoid ambiguous 'else' Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by:
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Paul Mackerras authored
Conflicts: arch/powerpc/sysdev/fsl_soc.c
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Nathan Lynch authored
Now that walk_memory_resource() is available regardless of MEMORY_HOTPLUG's setting, this dependency is not needed. Signed-off-by:
Nathan Lynch <ntl@pobox.com> Acked-by:
Jeff Garzik <jeff@garzik.org> Acked-by:
Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by:
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Nathan Lynch authored
The ehea driver was recently changed[1] to use walk_memory_resource() to detect the system's memory layout. However, walk_memory_resource() is available only when memory hotplug is enabled. So CONFIG_EHEA was made to depend on MEMORY_HOTPLUG [2], but it is inappropriate for a network driver to have such a dependency. Make the declaration of walk_memory_resource() and its powerpc implementation (ehea is powerpc-specific) unconditionally available. [1] 48cfb14f "ehea: Add DLPAR memory remove support" [2] fb7b6ca2 "ehea: Add dependency to Kconfig" Signed-off-by:
Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by:
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Stephen Rothwell authored
During the next merge window, pci_name()'s return value will become const, so use the new dev_set_name() instead to avoid the warning (from linux-next): arch/powerpc/kernel/pci_64.c: In function 'of_create_pci_dev': arch/powerpc/kernel/pci_64.c:193: warning: passing argument 1 of 'sprintf' discards qualifiers from pointer target type Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Benjamin Herrenschmidt authored
When building a signal or a ucontext, we can incorrectly set the MSR_VEC bit of the kernel pt_regs->msr before returning to userspace if the task -ever- used VMX. This can lead to funny result if that stack used it in the past, then "lost" it (ie. it wasn't enabled after a context switch for example) and then called get_context. It can end up with VMX enabled and the registers containing values from some other task. Signed-off-by:
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Adrian Bunk authored
This corrects the names of two CONFIG_ variables. Note that the CONFIG_MPC86XADS fix uncovers another bug (with mpc866_ads_defconfig) that will require fixing: <-- snip --> ... arch/powerpc/boot/dtc -O dtb -o arch/powerpc/boot/mpc866ads.dtb -b 0 /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/dts/mpc866ads.dts DTC: dts->dtb on file "/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/dts/mpc866ads.dts" WRAP arch/powerpc/boot/cuImage.mpc866ads powerpc64-linux-ld: arch/powerpc/boot/cuboot-mpc866ads.o: No such file: No such file or directory make[2]: *** [arch/powerpc/boot/cuImage.mpc866ads] Error 1 <-- snip --> Reported-by:
Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by:
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- 06 Jun, 2008 15 commits
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Oleg Nesterov authored
use_mm() was changed to use switch_mm() instead of activate_mm(), since then nobody calls (and nobody should call) activate_mm() with PF_BORROWED_MM bit set. As Jeff Dike pointed out, we can also remove the "old != new" check, it is always true. Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/ipath: Fix SM trap forwarding IB/ehca: Reject send WRs only for RESET, INIT and RTR state MAINTAINERS: Update NetEffect (iw_nes) entry IB/ipath: Fix device capability flags IB/ipath: Avoid test_bit() on u64 SDMA status value
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI: add workaround for bug in ASUS A7V600 BIOS (rev 1005) PCI/x86: fix up PCI stuff so that PCI_GOANY supports OLPC
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: sound: emu10k1 - fix system hang with Audigy2 ZS Notebook PCMCIA card
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git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6: capabilities: remain source compatible with 32-bit raw legacy capability support. LSM: remove stale web site from MAINTAINERS
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git://git.infradead.org/~dwmw2/mtd-2.6.26Linus Torvalds authored
* git://git.infradead.org/~dwmw2/mtd-2.6.26: [MTD] m25p80.c mutex unlock fix
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David Sterba authored
Packet sending is driven by two flags, tx_ready and tx_queued. It was possible, that there were queued data for sending and hardware was flagged as blocked but in fact it was not. The tx_queued was indicator but should be really a counter else first fragmented packet resets tx_queued flag, but there may be pending packets which do not get sent. New semantics: tx_ready - set, if hw is ready to send packet, no packet is being transferred right now set the flag right at the place where data are copied into hw memory and not earlier without checking if it was succesful tx_queued - count of enqueued packets, including fragments Tested-by:Michal Rokos <michal.rokos@gmail.com> Signed-off-by:
David Sterba <dsterba@suse.cz> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Jeff Layton authored
To get zeroed out memory from a particular NUMA node. To be used by sunrpc. Signed-off-by:
Jeff Layton <jlayton@redhat.com> Cc: Christoph Lameter <clameter@sgi.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Thomas Tuttle authored
Just a quick explanation of the pagemap interface from a userspace point of view, and an example of how to use it (in English, not code). Signed-off-by:
Thomas Tuttle <ttuttle@google.com> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by:
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Thomas Tuttle authored
If the user tries to read from a position that is not a multiple of 8, or read a number of bytes that is not a multiple of 8, they have passed an invalid argument to read, for the purpose of reading these files. It's not an IO error because we didn't encounter any trouble finding the data they asked for. Signed-off-by:
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Thomas Tuttle authored
Since pagemap is all about examining pages mapped into processes' memory spaces, it makes sense for kpagecount to return the map counts, not the reference counts. Signed-off-by:
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Tim Gardner authored
Adds DMI system identifier for ThinkPad T61. Originally written by Klaus S. Madsen. Taken from http://launchpadlibrarian.net/10864950/hdaps-t61.patchSigned-off-by:
Tim Gardner <tim.gardner@canonical.com> Signed-off-by:
maximilian attems <max@stro.at> Cc: Klaus S. Madsen <ubuntu@hjernemadsen.org> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by:
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Vegard Nossum authored
This patch: commit e9720acd Author: Pavel Emelyanov <xemul@openvz.org> Date: Fri Mar 7 11:08:40 2008 -0800 [NET]: Make /proc/net a symlink on /proc/self/net (v3) introduced a /proc/self/net directory without bumping the corresponding link count for /proc/self. This patch replaces the static link count initializations with a call that counts the number of directory entries in the given pid_entry table whenever it is instantiated, and thus relieves the burden of manually keeping the two in sync. [akpm@linux-foundation.org: cleanup] Acked-by:
Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by:
Vegard Nossum <vegard.nossum@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: <stable@kernel.org> Signed-off-by:
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David Woodhouse authored
This hooks up the platform-specific [gs]et_rtc_time functions so that kernels using CONFIG_RTC_CLASS have RTC support on most PowerPC platforms. A new driver, and one which we've been shipping in Fedora for a while already, since otherwise RTC support breaks. [akpm@linux-foundation.org: fix Kconfig indenting] Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
Alessandro Zummo <a.zummo@towertech.it> Acked-by:
David Brownell <david-b@pacbell.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Adrian Bunk authored
This patch fixes the following compile error caused by commit 4016a139 (mm/nommu.c: return 0 from kobjsize with invalid objects): /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c: In function 'kobjsize': /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: 'memory_end' undeclared (first use in this function) /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: (Each undeclared identifier is reported only once /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: for each function it appears in.) The patch also removes now no longer required memory_{start,end} declarations inside access_ok(). Reported-by:
Adrian Bunk <adrian.bunk@movial.fi> Signed-off-by:
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