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2007-10-02[SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy.David S. Miller
For the case where the source is not aligned modulo 8 we don't use load-twins to suck the data in and this kills performance since normal loads allocate in the L1 cache (unlike load-twin) and thus big memcpys swipe the entire L1 D-cache. We need to allocate a register window to implement this properly, but that actually simplifies a lot of things as a nice side-effect. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-30[SPARC64]: Fix put_user() calls in binfmt_aout32.cDavid S. Miller
argv and envp are pointers to u32's in userspace, so don't try to put_user() a NULL to them. Aparently gcc-4.2.x now warns about this, and since we use -Werror for arch/sparc64 code, this breaks the build. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-27[SPARC]: Fix EBUS use of uninitialized variable.David S. Miller
If of_get_property() fails, it returns NULL and the 'len' parameter is undefined. So we need to explicitly set len to zero in such cases. Noticed by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-16[SPARC64]: Warn user if cpu is ignored.David S. Miller
When NR_CPUS is smaller than the cpu probed, let the user know that the cpu won't be used. Suggested by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-16[SPARC64]: Fix lockdep, particularly on SMP.David S. Miller
As noted by Al Viro, when we try to call prom_set_trap_table() in the SMP trampoline code we try to take the PROM call spinlock which doesn't work because the current thread pointer isn't valid yet and lockdep depends upon that being correct. Furthermore, we cannot set the current thread pointer register because it can't be properly dereferenced until we return from prom_set_trap_table(). Kernel TLB misses only work after that call. So do the PROM call to set the trap table directly instead of going through the OBP library C code, and thus avoid the lock altogether. These calls are guarenteed to be serialized fully. Since there are now no calls to the prom_set_trap_table{_sun4v}() library functions, they can be deleted. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-16[SPARC64]: Update defconfig.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-12[SPARC64]: Fix booting on V100 systems.David S. Miller
On the root PCI bus, the OBP device tree lists device 3 twice. Once as 'pm' and once as 'lomp'. Everything goes downhill from there. Ignore the second instance to workaround this. Thanks to Kövedi_Krisztián for the bug report and testing the fix. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-31hugepage: fix broken check for offset alignment in hugepage mappingsDavid Gibson
For hugepage mappings, the file offset, like the address and size, needs to be aligned to the size of a hugepage. In commit 68589bc353037f233fe510ad9ff432338c95db66, the check for this was moved into prepare_hugepage_range() along with the address and size checks. But since BenH's rework of the get_unmapped_area() paths leading up to commit 4b1d89290b62bb2db476c94c82cf7442aab440c8, prepare_hugepage_range() is only called for MAP_FIXED mappings, not for other mappings. This means we're no longer ever checking for an aligned offset - I've confirmed that mmap() will (apparently) succeed with a misaligned offset on both powerpc and i386 at least. This patch restores the check, removing it from prepare_hugepage_range() and putting it back into hugetlbfs_file_mmap(). I'm putting it there, rather than in the get_unmapped_area() path so it only needs to go in one place, than separately in the half-dozen or so arch-specific implementations of hugetlb_get_unmapped_area(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Cc: Adam Litke <agl@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-30[SPARC64]: Fix several bugs in MSI handling.David S. Miller
1) sun4{u,v}_build_msi() have improper return value handling. We should always return negative error codes, instead of using the magic value "0" which could in fact be a valid MSI number. 2) sun4{u,v}_build_msi() should return -ENOMEM instead of calling prom_prom() halt with kzalloc() of the interrupt data fails. 3) We 'remembered' the MSI number using a singleton in the struct device archdata area, this doesn't work for MSI-X which can cause multiple MSIs assosciated with one device. Delete that archdata member, and instead store the MSI number in the IRQ chip data area. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-30[SPARC64]: Fix type and constant sizes wrt. sun4u IMAP/ICLR handling.David S. Miller
Sometimes we were using 32-bit values and the top bits were getting inadvertantly chopped off. This will matter for the forthcoming Fire controller MSI support. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-16[SPARC64]: SMP trampoline needs to avoid %tick_cmpr on sun4v too.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-16[SPARC64]: Do not touch %tick_cmpr on sun4v cpus.David S. Miller
This register is not a part of the sun4v architecture. Niagara 1 and 2 happened to leave it around. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-16[SPARC64]: Niagara-2 optimized copies.David S. Miller
The bzero/memset implementation stays the same as Niagara-1. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-15[SPARC64]: Allow userspace to get at the machine description.David S. Miller
Like the OF device tree, it's useful to let userland get at the machine description so it can pretty print the graph etc. The implementation is a simple MISC device with a read method. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-08[SPARC64]: Fix memory leak when cpu hotplugging.David S. Miller
Every time a cpu is added via hotplug, we allocate the per-cpu MONDO queues but we never free them up. Freeing isn't easy since the first cpu gets this memory from bootmem. Therefore, the simplest thing to do to fix this bug is to allocate the queues for all possible cpus at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-08[SPARC64]: Do not assume sun4v chips have load-twin/store-init support.David S. Miller
Check the cpu type in the OBP device tree before committing to using the optimized Niagara memcpy and memset implementation. If we don't recognize the cpu type, use a completely generic version. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-07[SPARC64]: Fix hard-coding of cpu type output in /proc/cpuinfo on sun4v.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-07[SPARC]: Centralize find_in_proplist() instead of duplicating N times.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30[SPARC64]: Fix show_stack() when stack argument is NULL.David S. Miller
It didn't handle that case at all, and now dump_stack() can be implemented directly as show_stack(current, NULL) Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30[SPARC64]: Fix conflicts in SBUS/PCI/EBUS/ISA DMA handling.David S. Miller
Fully unify all of the DMA ops so that subordinate bus types to the DMA operation providers (such as ebus, isa, of_device) can work transparently. Basically, we just make sure that for every system device we create, the dev->archdata 'iommu' and 'stc' fields are filled in. Then we have two platform variants of the DMA ops, one for SUN4U which actually programs the real hardware, and one for SUN4V which makes hypervisor calls. This also fixes the crashes in parport_pc on sparc64, reported by Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30[SPARC64]: Handle mostek clock type in mini_rtc driver.David S. Miller
Now that drivers/sbus/char/rtc.c is sparc32 only, we need this. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-30[SPARC64]: Fix sun4u PCI config space accesses on sun4u.David S. Miller
Don't provide fake PCI config space for sun4u. Also, put back the funny host controller space handling that at least Sabre needs. You have to read PCI host controller registers at their nature size otherwise you get zeros instead of correct values. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-29Remove fs.h from mm.hAlexey Dobriyan
Remove fs.h from mm.h. For this, 1) Uninline vma_wants_writenotify(). It's pretty huge anyway. 2) Add back fs.h or less bloated headers (err.h) to files that need it. As result, on x86_64 allyesconfig, fs.h dependencies cut down from 3929 files rebuilt down to 3444 (-12.3%). Cross-compile tested without regressions on my two usual configs and (sigh): alpha arm-mx1ads mips-bigsur powerpc-ebony alpha-allnoconfig arm-neponset mips-capcella powerpc-g5 alpha-defconfig arm-netwinder mips-cobalt powerpc-holly alpha-up arm-netx mips-db1000 powerpc-iseries arm arm-ns9xxx mips-db1100 powerpc-linkstation arm-assabet arm-omap_h2_1610 mips-db1200 powerpc-lite5200 arm-at91rm9200dk arm-onearm mips-db1500 powerpc-maple arm-at91rm9200ek arm-picotux200 mips-db1550 powerpc-mpc7448_hpc2 arm-at91sam9260ek arm-pleb mips-ddb5477 powerpc-mpc8272_ads arm-at91sam9261ek arm-pnx4008 mips-decstation powerpc-mpc8313_rdb arm-at91sam9263ek arm-pxa255-idp mips-e55 powerpc-mpc832x_mds arm-at91sam9rlek arm-realview mips-emma2rh powerpc-mpc832x_rdb arm-ateb9200 arm-realview-smp mips-excite powerpc-mpc834x_itx arm-badge4 arm-rpc mips-fulong powerpc-mpc834x_itxgp arm-carmeva arm-s3c2410 mips-ip22 powerpc-mpc834x_mds arm-cerfcube arm-shannon mips-ip27 powerpc-mpc836x_mds arm-clps7500 arm-shark mips-ip32 powerpc-mpc8540_ads arm-collie arm-simpad mips-jazz powerpc-mpc8544_ds arm-corgi arm-spitz mips-jmr3927 powerpc-mpc8560_ads arm-csb337 arm-trizeps4 mips-malta powerpc-mpc8568mds arm-csb637 arm-versatile mips-mipssim powerpc-mpc85xx_cds arm-ebsa110 i386 mips-mpc30x powerpc-mpc8641_hpcn arm-edb7211 i386-allnoconfig mips-msp71xx powerpc-mpc866_ads arm-em_x270 i386-defconfig mips-ocelot powerpc-mpc885_ads arm-ep93xx i386-up mips-pb1100 powerpc-pasemi arm-footbridge ia64 mips-pb1500 powerpc-pmac32 arm-fortunet ia64-allnoconfig mips-pb1550 powerpc-ppc64 arm-h3600 ia64-bigsur mips-pnx8550-jbs powerpc-prpmc2800 arm-h7201 ia64-defconfig mips-pnx8550-stb810 powerpc-ps3 arm-h7202 ia64-gensparse mips-qemu powerpc-pseries arm-hackkit ia64-sim mips-rbhma4200 powerpc-up arm-integrator ia64-sn2 mips-rbhma4500 s390 arm-iop13xx ia64-tiger mips-rm200 s390-allnoconfig arm-iop32x ia64-up mips-sb1250-swarm s390-defconfig arm-iop33x ia64-zx1 mips-sead s390-up arm-ixp2000 m68k mips-tb0219 sparc arm-ixp23xx m68k-amiga mips-tb0226 sparc-allnoconfig arm-ixp4xx m68k-apollo mips-tb0287 sparc-defconfig arm-jornada720 m68k-atari mips-workpad sparc-up arm-kafa m68k-bvme6000 mips-wrppmc sparc64 arm-kb9202 m68k-hp300 mips-yosemite sparc64-allnoconfig arm-ks8695 m68k-mac parisc sparc64-defconfig arm-lart m68k-mvme147 parisc-allnoconfig sparc64-up arm-lpd270 m68k-mvme16x parisc-defconfig um-x86_64 arm-lpd7a400 m68k-q40 parisc-up x86_64 arm-lpd7a404 m68k-sun3 powerpc x86_64-allnoconfig arm-lubbock m68k-sun3x powerpc-cell x86_64-defconfig arm-lusl7200 mips powerpc-celleb x86_64-up arm-mainstone mips-atlas powerpc-chrp32 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-29Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATIONRafael J. Wysocki
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid confusion (among other things, with CONFIG_SUSPEND introduced in the next patch). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26viohs: extern on function definitionAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24[SPARC64]: Mark most of initial bootup asm as .text.init.ref_okDavid S. Miller
We can't mark the whole thing init because there are dependencies in bootloaders that assume that _start, or whatever the image entry value, is 2 instructions before the "HdrS" signature. In fact, TILO assumes this entry is always at 0x4000, yikes! Also, right after the bootloader info area there are OBP strings and values that get used later in the boot process, and those are not all provably .init yet. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-24[SPARC64]: Update defconfig.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-24[SPARC]: Add missing NOTES section.David S. Miller
This fixes boot failures when the build-id LD option is actually used, because without it we end up with multiple PT_LOAD sections which the SILO boot loader cannot handle. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined! [SPARC32]: Make PAGE_SHARED a read-mostly variable. [SPARC32]: Take enable_irq/disable_irq out of line. [SPARC32]: clean include/asm-sparc/irq.h [SPARC32]: Fix rounding errors in ndelay/udelay implementation.
2007-07-21[SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined!Christoph Hellwig
From: Christoph Hellwig <hch@infradead.org> On Fri, Jul 20, 2007 at 09:24:42AM -0400, Horst H. von Brand wrote: > When building v2.6.22-3478-g275afca on sparc64 (.config attached) I get: > > MODPOST vmlinux > Building modules, stage 2. > MODPOST 463 modules > ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined! Sorry, my fault. It looked to me like sparc64 exports sys_ioctl on it's own, but it only exports compat_sys_ioctl on it's own. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-21NTP: move the cmos update code into ntp.cThomas Gleixner
i386 and sparc64 have the identical code to update the cmos clock. Move it into kernel/time/ntp.c as there are other architectures coming along with the same requirements. [akpm@linux-foundation.org: build fixes] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: David Miller <davem@davemloft.net> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21clockevents: fix resume logicThomas Gleixner
We need to make sure, that the clockevent devices are resumed, before the tick is resumed. The current resume logic does not guarantee this. Add CLOCK_EVT_MODE_RESUME and call the set mode functions of the clock event devices before resuming the tick / oneshot functionality. Fixup the existing users. Thanks to Nigel Cunningham for tracking down a long standing thinko, which affected the jinxed VAIO. [akpm@linux-foundation.org: xen build fix] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20[SPARC64]: fix section mismatch warning in mdesc.cSam Ravnborg
Fix following warning: WARNING: vmlinux.o(.text+0x35264): Section mismatch: reference to .init.text:__alloc_bootmem (between 'mdesc_bootmem_alloc' and 'mdesc_bootmem_free') Rename mdesc_mem_ops to *_ops so modpost ignores __init references and declare mdesc_bootmem_alloc __init since it is only used during __init context. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: fix section mismatch warning in pci_sunv4Sam Ravnborg
Fix following warning: WARNING: vmlinux.o(.text+0x3cf50): Section mismatch: reference to .init.text:page_in_phys_avail (between 'pci_sun4v_pbm_init' and 'sun4v_pci_init') pci_sun4v_pbm_init and sun4v_pci_init was only used under __init context so declare them _init. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Stop using drivers/char/rtc.cDavid S. Miller
The existing sparc64 mini_rtc driver can handle CMOS based rtcs trivially with just a few lines of code and the simplifies things tremendously. Tested on SB1500. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Fix virq decomposition.David S. Miller
The dev_handle and dev_ino fields don't match up exactly to the traditional IMAP_IGN and IMAP_INO masks. So store them away in a table and look them up directly. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Use KERN_ERR in IRQ manipulation error printks.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Do not flood log with failed DS messages.David S. Miller
When booting up a control node it's quite common to not be able to register several service types. And likewise on guests at least one or two are going to not be there. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Handle multiple domain-services-port nodes properly.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC64]: Improve VIO device naming further.David S. Miller
The best scheme to get uniqueness seems to be: FOO -- If node lacks "id" property FOO-$(ID) -- If node has "id" but parent lacks "cfg-handle" FOO-$(ID)-$(CFG_HANDLE) -- If node has both Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC]: Make sure dev_archdata is filled in for all devices.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20[SPARC]: Fix serial console device detection.David S. Miller
The current scheme works on static interpretation of text names, which is wrong. The output-device setting, for example, must be resolved via an alias or similar to a full path name to the console device. Paths also contain an optional set of 'options', which starts with a colon at the end of the path. The option area is used to specify which of two serial ports ('a' or 'b') the path refers to when a device node drives multiple ports. 'a' is assumed if the option specification is missing. This was caught by the UltraSPARC-T1 simulator. The 'output-device' property was set to 'ttya' and we didn't pick upon the fact that this is an OBP alias set to '/virtual-devices/console'. Instead we saw it as the first serial console device, instead of the hypervisor console. The infrastructure is now there to take advantage of this to resolve the console correctly even in multi-head situations in fbcon too. Thanks to Greg Onufer for the bug report. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-20Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons: Create drivers/of/platform.c Create linux/of_platorm.h [SPARC/64] Rename some functions like PowerPC Begin consolidation of of_device.h Begin to consolidate of_device.c Consolidate of_find_node_by routines Consolidate of_get_next_child Consolidate of_get_parent Consolidate of_find_property Consolidate of_device_is_compatible Start split out of common open firmware code Split out common parts of prom.h
2007-07-19[SPARC64]: Fix two year old bug in early bootup asm.David S. Miller
We try to fetch the CIF entry pointer from %o4, but that can get clobbered by the early OBP calls. It is saved in %l7 already, so actually this "mov %o4, %l7" can just be completely removed with no other changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Update defconfig.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Fix log message type in vio_create_one().Fabio Massimo Di Nitto
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Tweak assertions in sun4v_build_virq().David S. Miller
They are too strict. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Tweak kernel log messages in power_probe().David S. Miller
Use KERN_INFO, add missing newline, etc. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Fix handling of multiple vdc-port nodes.David S. Miller
The "id" property in vdc-port nodes are not unique, they are all zero. Therefore assign ID's using the parent's "cfg-handle" property which will be unique. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-19[SPARC64]: Fix device type matching in VIO's devspec_show().Fabio Massimo Di Nitto
with the recent renames, we forgot to update the matches for devspec. This is required to keep udev working and autoload modules. Signed-off-by: David S. Miller <davem@davemloft.net>