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2007-10-15kbuild: enable 'make CPPFLAGS=...' to add additional options to CPPSam Ravnborg
The variable CPPFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. This patch replace use of CPPFLAGS with KBUILD_CPPFLAGS all over the tree and enabling one to use: make CPPFLAGS=... to specify additional CPP commandline options. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-15kbuild: enable 'make AFLAGS=...' to add additional options to ASSam Ravnborg
The variable AFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of AFLAGS with KBUILD_AFLAGS all over the tree. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-12kconfig: syntax cleanup - drop support for "depends/requires/def_boolean"Adrian Bunk
Remove the following redundant and never or rarely used kconfig syntax: - "def_boolean" (same as "def_bool") - "requires" (same as "depends on") - "depends" (same as "depends on") This patch contains the code changes and Kconfig updates. The shipped files are in next patch to let actual codechange stand out. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-11missed bio_endio() in axonramAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-11Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
2007-10-12[POWERPC] Add memchr() to the bootwrapperDavid Gibson
This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12[POWERPC] Implement logging of unhandled signalsOlof Johansson
Implement show_unhandled_signals sysctl + support to print when a process is killed due to unhandled signals just as i386 and x86_64 does. Default to having it off, unlike x86 that defaults on. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12[POWERPC] Add legacy serial support for OPB with flattened device treeValentine Barshak
Currently find_legacy_serial_ports() can find no serial ports on the OPB with flattened device tree. Thus no legacy boot console can be initialized. Just the early udbg console works, which is initialized with udbg_init_44x_as1 on the UART's physical address specified in kernel config. This happens because we look for ns16750 serial devices only and expect opb node to have a device type property. This patch makes it look for ns16550-compatible devices and use of_device_is_compatible() for opb in case device type is not specified. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12[POWERPC] Use 1TB segmentsPaul Mackerras
This makes the kernel use 1TB segments for all kernel mappings and for user addresses of 1TB and above, on machines which support them (currently POWER5+, POWER6 and PA6T). We detect that the machine supports 1TB segments by looking at the ibm,processor-segment-sizes property in the device tree. We don't currently use 1TB segments for user addresses < 1T, since that would effectively prevent 32-bit processes from using huge pages unless we also had a way to revert to using 256MB segments. That would be possible but would involve extra complications (such as keeping track of which segment size was used when HPTEs were inserted) and is not addressed here. Parts of this patch were originally written by Ben Herrenschmidt. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12[POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pciValentine Barshak
Add 64-bit physical address support to setup_indirect_pci(). Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12Merge branch 'for-2.6.24' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.24
2007-10-12Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx ↵Paul Mackerras
into for-2.6.24
2007-10-11[POWERPC] 4xx: Kilauea defconfig fileStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-11[POWERPC] 4xx: Kilauea DTSStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-11[POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40xStefan Roese
This patch adds basic support for the new 405EX and the AMCC eval board Kilauea to arch/powerpc. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-11[POWERPC] 4xx: Add AMCC 405EX support to cputable.cStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-11[POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capableKumar Gala
All ppc32 systems except PReP and 8xx are capable of handling 3G of user address space. Old legacy had set this to 2GB and no one has bothered to fix it. 8xx could be bumped up to 3GB if its SW TLB miss handlers were fixed up to properly determine kernel/user addresses. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB ↵Kumar Gala
handlers Move to using PAGE_OFFSET instead of TASK_SIZE or KERNELBASE value on 6xx/40x/44x/fsl-booke to determine if the faulting address is a kernel or user space address. This mimics how the macro is_kernel_addr() works. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfigKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] 85xx: Killed <asm/mpc85xx.h>Kumar Gala
asm-powerpc/mpc85xx.h was really a hold over from arch/ppc. Now that more decoupling has occurred we can remove <asm/mpc85xx.h> and some of its legacy. As part of this we moved the definition of CPM_MAP_ADDR into cpm2.h for 85xx platforms. This is a stop gap until drivers stop using CPM_MAP_ADDR. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] 85xx: Add cpm nodes for 8541/8555 CDSScott Wood
We don't use any CPM devices on these boards, but the muram node on these chips is different from the 8560, so it's helpful to people working with custom boards based on these chips. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11[POWERPC] mpc8272ads: Remove muram from the CPM reg property.Scott Wood
This is described by the muram node now. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-11Merge branch 'virtex-for-2.6.24' of ↵Josh Boyer
git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.24-4xx
2007-10-11[POWERPC] Make clockevents work on PPC601 processorsPaul Mackerras
In testing the new clocksource and clockevent code on a PPC601 processor, I discovered that the clockevent multiplier value for the decrementer clockevent was overflowing. Because the RTCL register in the 601 effectively counts at 1GHz (it doesn't actually, but it increases by 128 every 128ns), and the shift value was 32, that meant the multiplier value had to be 2^32, which won't fit in an unsigned long on 32-bit. The same problem would arise on any platform where the timebase frequency was 1GHz or more (not that we actually have any such machines today). This fixes it by reducing the shift value to 16. Doing the calculations with a resolution of 2^-16 nanoseconds (15 femtoseconds) should be quite adequate. :) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Prevent decrementer clockevents from firing earlyPaul Mackerras
On old powermacs, we sometimes set the decrementer to 1 in order to trigger a decrementer interrupt, which we use to handle an interrupt that was pending at the time when it was re-enabled. This was causing the decrementer clock event device to call the event function for the next event early, which was causing problems when high-res timers were not enabled. This fixes the problem by recording the timebase value at which the next event should occur, and checking the current timebase against the recorded value in timer_interrupt. If it isn't time for the next event, it just reprograms the decrementer and returns. This also subtracts 1 from the value stored into the decrementer, which is appropriate because the decrementer interrupts on the transition from 0 to -1, not when the decrementer reaches 0. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Fix performance monitor on machines with logical PVRPaul Mackerras
Some IBM machines supply a "logical" PVR (processor version register) value in the device tree in the cpu nodes rather than the real PVR. This is used for instance to indicate that the processors in a POWER6 partition have been configured by the hypervisor to run in POWER5+ mode rather than POWER6 mode. To cope with this, we call identify_cpu a second time with the logical PVR value (the first call is with the real PVR value in the very early setup code). However, POWER5+ machines can also supply a logical PVR value, and use the same value (the value that indicates a v2.04 architecture compliant processor). This causes problems for code that uses the performance monitor (such as oprofile), because the PMU registers are different in POWER6 (even in POWER5+ mode) from the real POWER5+. This change works around this problem by taking out the PMU information from the cputable entries for the logical PVR values, and changing identify_cpu so that the second call to it won't overwrite the PMU information that was established by the first call (the one with the real PVR), but does update the other fields. Specifically, if the cputable entry for the logical PVR value has num_pmcs == 0, none of the PMU-related fields get used. So that we can create a mixed cputable entry, we now make cur_cpu_spec point to a single static struct cpu_spec, and copy stuff from cpu_specs[i] into it. This has the side-effect that we can now make cpu_specs[] be initdata. Ultimately it would be good to move the PMU-related fields out to a separate structure, pointed to by the cputable entries, and change identify_cpu so that it saves the PMU info pointer, copies the whole structure, and restores the PMU info pointer, rather than identify_cpu having to list all the fields that are *not* PMU-related. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2007-10-11[POWERPC] Don't enable cpu hotplug on pSeries machines with MPICOlof Johansson
Don't allow cpu hotplug on systems lacking XICS interrupt controller (i.e. with an MPIC interrupt controller), since the current pSeries platform code is hardcoded for XICS. This works around the bug reported by Paul Mackerras where the disable_nonboot_cpus() call recently added to the shutdown path will cause an oops on older pSeries machines. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Move of_platform_driver initialisations: arch/powerpcStephen Rothwell
We no longer initialise the name and owner fields of the of_platform_driver, but use the fields of the embedded device_driver's name field instead. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] iSeries: Move viodasd probingStephen Rothwell
This way we only have entries in the device tree for disks that actually exist. A slight complication is that disks may be attached to LPARs at runtime. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] iSeries: Move detection of virtual tapesStephen Rothwell
Now we will only have entries in the device tree for the actual existing devices (including their OS/400 properties). This way viotape.c gets all the information about the devices from the device tree. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] iSeries: Move detection of virtual cdromsStephen Rothwell
Now we will only have entries in the device tree for the actual existing devices (including their OS/400 properties). This way viocd.c gets all the information about the devices from the device tree. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Remove more iSeries-specific stuff from vio.cStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Remove iSeries_vio_devStephen Rothwell
It was only being used to carry around dma_iommu_ops and vio_iommu_table which we can use directly instead. This also means that vio_bus_device doesn't need to refer to them either. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Clean up vio.hStephen Rothwell
Remove vio_dma_ops declaration (since it no longer exists) and some unused fields from struct vio_driver. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Platforms shouldn't mess with ROOT_DEVGrant Likely
There is no good reason for board platform code to mess with the ROOT_DEV. Remove it from all in-tree platforms except powermac. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Remove empty ppc_md.setup_arch hooksGrant Likely
Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Only call ppc_md.setup_arch() if it is providedGrant Likely
This allows platforms which don't have anything to do at setup_arch time (like a bunch of the 4xx platforms) to eliminate an empty setup_arch hook. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Disable vDSO support for ARCH=ppc where it's not implementedWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Align the sys_call_tableStephen Rothwell
Our _GLOBAL macro does a ".align 2" so the alignment is fine for 32 bit, but on 64 bit it is possible for it to end up only 4 byte aligned. I don't know if it matters, but it can't hurt to 8 byte align it. It also means that when we build with --emit_relocs, none of our 64 bit relocations are to misaligned places. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-10pasemi_mac: enable iommu supportOlof Johansson
pasemi_mac: enable iommu support Enable IOMMU support for pasemi_mac, but avoid using it on non-partitioned systems for performance reasons. The user can override this by selecting the PPC_PASEMI_IOMMU_DMA_FORCE configuration option. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10Device tree aware EMAC driverDavid Gibson
Based on BenH's earlier work, this is a new version of the EMAC driver for the built-in ethernet found on PowerPC 4xx embedded CPUs. The same ASIC is also found in the Axon bridge chip. This new version is designed to work in the arch/powerpc tree, using the device tree to probe the device, rather than the old and ugly arch/ppc OCP layer. This driver is designed to sit alongside the old driver (that lies in drivers/net/ibm_emac and this one in drivers/net/ibm_newemac). The old driver is left in place to support arch/ppc until arch/ppc itself reaches its final demise (not too long now, with luck). This driver still has a number of things that could do with cleaning up, but I think they can be fixed up after merging. Specifically: - Should be adjusted to properly use the dma mapping API. Axon needs this. - Probe logic needs reworking, in conjuction with the general probing code for of_platform devices. The dependencies here between EMAC, MAL, ZMII etc. make this complicated. At present, it usually works, because we initialize and register the sub-drivers before the EMAC driver itself, and (being in driver code) runs after the devices themselves have been instantiated from the device tree. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10[SOFTIRQ]: Remove do_softirq() symbol export.Robert Olsson
As noted by Christoph Hellwig, pktgen was the only user so it can now be removed. [ Add missing cases caught by Adrian Bunk. -DaveM ] Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[POWERPC] MPC5200: Don't make firmware fixups into common codeGrant Likely
The Lite5200 u-boot image doesn't entirely configure the processor correctly and so Linux needs to fixup the cpu setup in setup_arch. Fixing the CPU setup is good, but making it into common code is not a good idea. New board ports should be encouraged not to take the lead of the lite5200 and instead get their firmware to setup the CPU the right way. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tnt.com>
2007-10-10[POWERPC] MPC52xx: Trim includes on mpc5200 platform support codeGrant Likely
Drop unnecessary includes for MPC5200 based boards Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tnt.com>
2007-10-10[POWERPC] MPC52xx: Drop show_cpuinfo platform hooks from Lite5200Grant Likely
This hook doesn't really add any new information. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tnt.com>
2007-10-10[POWERPC] Uartlite: bootwrapper bug fix, getc loops foreverGrant Likely
Fixes inverted logic in uartlite_getc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-10[POWERPC] Don't build arch/powerpc/sysdev/dcr.c for ARCH=ppc kernelsGrant Likely
dcr.c is an arch/powerpc only thing. Compiling ppc405 arch/ppc kernels throws warnings without this change. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-09[POWERPC] PS3: Add os-area database routinesGeoff Levand
Add support for a simple tagged database in the PS3 flash rom os-area. The database allows the flash rom os-area to be shared between a bootloader and installed operating systems. The application ps3-flash-util or the library libps3-utils from the ps3-utils package can be used for userspace database operations. The latest ps3-utils package is available here: git://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-utils.git Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>