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2010-02-27m68k: Switch to generic siginfo layoutMaxim Kuvyrkov
This patch switches m68k to generic siginfo layout. The custom layout of m68k's `struct siginfo' had several issues due to not considering aliasing of members in the union, e.g., _uid32 was at different offsets in ._kill, ._rt and ._sigchld. Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27macfb: fix 24-bit visual and stuffFinn Thain
Lots of changes. Remove volatile keywords. Take the advice in the comments and change video_slot to slot_addr. Factor out fifteen or so "channel >> 8" shifts into three shifts higher up the call graph. Make csc_setpalette() atomic, pass the correct color values. Check for ioremap() failure. Add missing break statement, thus fixing 24 bit console visual (blue background bug). Remove some uninformative printk() noise. Add a description for powerbook 140/170 graphics. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27macfb: cleanupFinn Thain
Cleanup whitespace and code style. Remove unused #includes and prototypes. Remove obsolete, redundant or misleading comments. Remove dead code and redundant initialisers. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27fbdev: add some missing mac modesFinn Thain
Add the missing mac video modes for the Portrait and 12" RGB displays. The specs come from the Mac LC III developer note. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: start CUDA earlyFinn Thain
The valkyriefb driver needs the CUDA to work in order to set the video mode at boot. So initialise the device earlier, and bring the m68k code closer to the powermac code. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27valkyriefb: various fixesFinn Thain
Valkyriefb and macfb will adopt the same card if they get the chance, so remove valkyrie support from macfb. Also fix the "valkyriefb: can't do 832x624x8" problem reported by Raylynn Knight some time ago, by adding vmode 13 support for CONFIG_MAC. Also add vmode 11 since that works too. Make use of the monitor sense lines on 68k Macs too. Also some cleanups. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27fbdev: mac_var_to_mode() fixFinn Thain
The valkyriefb driver assumes that this logic holds: mac_vmode_to_var(X, cmode, &var); mac_var_to_vmode(&var, &vmode, &cmode); assert(vmode == X); But it doesn't hold because mac_var_to_vmode() can return a mode with a slower pixel clock, even when a match is available. So we end up with this failure: using video mode 11 and color mode 0. valkyriefb: vmode 12 not valid. valkyriefb: can't set default video mode valkyriefb: vmode 12 not valid. Rather than have mac_var_to_mode() return the first reasonable mode it finds, have it return the mode that is closest to the requested one (or the mode with the closest longer pixel clock period if there is no exact match). Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: move macsonic and macmace platform devicesFinn Thain
Move platform device code from the drivers to the platform init function. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: move mac_esp platform deviceFinn Thain
Move platform device code from the driver to the platform init function. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: replace mac68k SCC code with platform deviceFinn Thain
Remove the old 68k Mac serial port code and a lot of related cruft. Add new SCC platform devices to mac 68k platform. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27pmac-zilog: add platform driverFinn Thain
Add platform driver support to the pmac-zilog driver, for m68k macs. Place the powermac-specific code inside #ifdef CONFIG_PPC_PMAC. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27pmac-zilog: cleanupFinn Thain
Whitespace cleanups and comment typo fix. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: rework SWIM platform deviceFinn Thain
Adjust the platform device code to conform with the code style used in the rest of this patch series. No need to name resources nor to register devices which are not applicable. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27mac68k: cleanupFinn Thain
Cleanup whitespace and comments. Remove some dead code. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27ataflop: Killl warning about unused variable flagsGeert Uytterhoeven
After commit e0c0978699a83f26f2341f7eedc1463b79e31aff ("ataflop: remove buggy/commented-out IRQ disable from do_fd_request()") the `flags' variable became unused: drivers/block/ataflop.c:1473: warning: unused variable 'flags' Hence remove it. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27m68k: Use DIV_ROUND_CLOSESTJulia Lawall
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ @depends on haskernel@ expression x,__divisor; @@ - (((x) + ((__divisor) / 2)) / (__divisor)) + DIV_ROUND_CLOSEST(x,__divisor) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27m68k: vme_scc - __init annotationsPeter Huewe
Trivial patch which adds the __init macro to the module_init function and all of its helper functions of drivers/char/vme_scc.c Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27m68k{,nommu}/h8300: Remove obsolete comment about map_chunkPhilippe De Muyter
Remove the comments referring to a function map_chunk that no longer exists. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27m68k: Allow ioremapping top of memoryPhilippe De Muyter
The test in __ioremap to reject memory ranges crossing the 0 boundary rejects also memory ranges ending at the end of the memory. Fix that. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27m68k: Fix asm/swab.h for ColdFireMaxim Kuvyrkov
Make asm/swab.h compatible with ColdFire ISA_B CPUs. Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-02-27x86/hw-breakpoints: Remove the name fieldFrederic Weisbecker
Remove the name field from the arch_hw_breakpoint. We never deal with target symbols in the arch level, neither do we need to ever store it. It's a legacy for the previous version of the x86 breakpoint backend. Let's remove it. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-27perf: Remove pointless breakpoint unionFrederic Weisbecker
Remove pointless union in the breakpoint field of hw_perf_event. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org>
2010-02-27perf lock: Drop the buffers multiplexing dependencyFrederic Weisbecker
We need to deal with time ordered events to build a correct state machine of lock events. This is why we multiplex the lock events buffers. But the ordering is done from the kernel, on the tracing fast path, leading to high contention between cpus. Without multiplexing, the events appears in a weak order. If we have four events, each split per cpu, perf record will read the events buffers in the following order: [ CPU0 ev0, CPU0 ev1, CPU0 ev3, CPU0 ev4, CPU1 ev0, CPU1 ev0....] To handle a post processing reordering, we could just read and sort the whole in memory, but it just doesn't scale with high amounts of events: lock events can fill huge amounts in few times. Basically we need to sort in memory and find a "grace period" point when we know that a given slice of previously sorted events can be committed for post-processing, so that we can unload the memory usage step by step and keep a scalable sorting list. There is no strong rules about how to define such "grace period". What does this patch is: We define a FLUSH_PERIOD value that defines a grace period in seconds. We want to have a slice of events covering 2 * FLUSH_PERIOD in our sorted list. If FLUSH_PERIOD is big enough, it ensures every events that occured in the first half of the timeslice have all been buffered and there are none remaining and there won't be further to put inside this first timeslice. Then once we reach the 2 * FLUSH_PERIOD timeslice, we flush the first half to be gentle with the memory (the second half can still get new events in the middle, so wait another period to flush it) FLUSH_PERIOD is defined to 5 seconds. Say the first event started on time t0. We can safely assume that at the time we are processing events of t0 + 10 seconds, ther won't be anymore events to read from perf.data that occured between t0 and t0 + 5 seconds. Hence we can safely flush the first half. To point out funky bugs, we have a guardian that checks a new event timestamp is not below the last event's timestamp flushed and that displays a warning in this case. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com>
2010-02-27perf lock: Fix and add misc documentally thingsHitoshi Mitake
I've forgot to add 'perf lock' line to command-list.txt, so users of perf could not find perf lock when they type 'perf'. Fixing command-list.txt requires document (tools/perf/Documentation/perf-lock.txt). But perf lock is too much "under construction" to write a stable document, so this is something like pseudo document for now. And I wrote description of perf lock at help section of CONFIG_LOCK_STAT, this will navigate users of lock trace events. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> LKML-Reference: <1265267295-8388-1-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-27percpu: Add __percpu sparse annotations to hw_breakpointTejun Heo
Add __percpu sparse annotations to hw_breakpoint. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. In kernel/hw_breakpoint.c, per_cpu(nr_task_bp_pinned, cpu)'s will trigger spurious noderef related warnings from sparse. Changing it to &per_cpu(nr_task_bp_pinned[0], cpu) will work around the problem but deemed to ugly by the maintainer. Leave it alone until better solution can be found. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: K.Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <4B7B4B7A.9050902@kernel.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-27Merge commit 'v2.6.33' into perf/coreFrederic Weisbecker
Merge reason: __percpu annotations need the corresponding sparse address space definition upstream. Conflicts: tools/perf/util/probe-event.c (trivial)
2010-02-27power_supply: bq27x00: fix voltage and current unitsGrazvydas Ignotas
The chip returns voltage and current in mV and mA, but power supply class uses uV and uA, so add missing conversion. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-02-27power_supply: bq27x00: add status and time propertiesGrazvydas Ignotas
The BQ27x00 series of chips can report time-to-empty and time-to-full, so let's add corresponding properties. Also report charge status based on status flag register. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-02-27Bluetooth: Add SCO fallback for unsupported feature errorStephen Coe
The Bluetooth SIG PTS test case: TC_AG_ACS_BV_10_I, rejects eSCO with "Unsupported Feature or Parameter Value" (0x11). This patch adds case for SCO fallback. 2007-09-20 12:20:37.787747 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 38 packets 1 2007-09-20 12:20:37.842154 < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 handle 38 voice setting 0x0060 2007-09-20 12:20:37.847037 > HCI Event: Command Status (0x0f) plen 4 Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1 2007-09-20 12:20:37.855233 > HCI Event: Max Slots Change (0x1b) plen 3 handle 38 slots 1 2007-09-20 12:20:39.913354 > HCI Event: Synchronous Connect Complete (0x2c) plen 17 status 0x11 handle 38 bdaddr 00:16:93:01:01:7A type eSCO Error: Unsupported Feature or Parameter Value 2007-09-20 12:20:39.922629 > HCI Event: Max Slots Change (0x1b) plen 3 handle 38 slots 5 2007-09-20 12:20:58.126886 < ACL data: handle 38 flags 0x02 dlen 8 L2CAP(d): cid 0x0041 len 4 [psm 0] 0000: 0b 53 01 b8 .S.. 2007-09-20 12:20:58.130138 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 38 packets 1 Signed-off-by: Stephen Coe <smcoe1@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Add controller types for BR/EDR and 802.11 AMPMarcel Holtmann
With the Bluetooth 3.0 specification and the introduction of alternate MAC/PHY (AMP) support, it is required to differentiate between primary BR/EDR controllers and 802.11 AMP controllers. So introduce a special type inside HCI device for differentiation. For now all AMP controllers will be treated as raw devices until an AMP manager has been implemented. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Convert Marvell driver to use per adapter debugfsMarcel Holtmann
The debugfs support of the Marvell driver is buggy. It is limited to one controller per system. Fix this by using the controller specific debugfs directory as parent. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Convert inquiry cache to use debugfs instead of sysfsMarcel Holtmann
The output of the inquiry cache is only useful for debugging purposes and so move it into debugfs. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Convert controller hdev->type to hdev->busMarcel Holtmann
The hdev->type is misnamed and should be actually hdev->bus instead. So convert it now. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Add missing kfree() on error path in Atheros driverDan Carpenter
Add a couple kfree() calls on an error path. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Make USB device id constantMárton Németh
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make bcm203x_table also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Márton Németh <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27Bluetooth: Add __init/__exit macros to Marvell SDIO driverPeter Huewe
Trivial patch which adds the __init/__exit macros to the module_init/ module_exit functions of btmrvl_sdio.c driver. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-02-27MIPS: Alchemy: defconfig updatesManuel Lauss
Updated, leaner defconfig for the alchemy development boards. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/1005/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Alchemy: Fix Au1100 ethernet build failureManuel Lauss
Don't define platform info for second mac on au1100 (which only has a single mac). Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/1004/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Alchemy: Repair db1500/bosporus buildsManuel Lauss
A few hunks somehow ended up outside their #ifdef/endif blocks, leading to -Werror-induces build failures. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/1003/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: ARC: Cleanup unused definitions from sgialib.hYoichi Yuasa
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/979/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Cobalt: convert legacy port addresses to GT-64111 bus addressesBjorn Helgaas
The GT-64111 PCI host bridge has no address translation mechanism, so it can't generate legacy port accesses. This quirk fixes legacy device port resources to contain the bus addresses actually generated by the GT-64111. I think this is the approach Ben Herrenschmidt suggested long ago: http://marc.info/?l=linux-kernel&m=119733290624544&w=2 This allows us to remove the IORESOURCE_PCI_FIXED hack from pcibios_fixup_device_resources(), which converts bus addresses to CPU addresses. IORESOURCE_PCI_FIXED denotes resources that can't be moved; it has nothing to do with converting bus to CPU addresses. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Yoichi Yuasa <yuasa@linux-mips.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linux-mips@linux-mips.org Tested-by: Yoichi Yuasa <yuasa@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/998/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Alchemy: use 36bit addresses for PCMCIA resources.Manuel Lauss
On Alchemy the PCMCIA area lies at the end of the chips 36bit system bus area. Currently, addresses at the far end of the 32bit area are assumed to belong to the PCMCIA area and fixed up to the real 36bit address before being passed to ioremap(). A previous commit enabled 64 bit physical size for the resource datatype on Alchemy and this allows to use the correct 36bit addresses when registering the PCMCIA sockets. This patch removes the 32-to-36bit address fixup and registers the Alchemy demo board pcmcia socket with the correct 36bit physical addresses. Tested on DB1200, with a CF card (ide-cs driver) and a 3c589 PCMCIA ethernet card. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: Manuel Lauss <manuel.lauss@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/994/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Cobalt: Fix theoretical port aliasing issueRalf Baechle
Because the VIA SuperIO chip only decodes 24 bits of address space but port address space currently being configured as 32MB there is the theoretical possibility of aliases within the I/O port address range. The complicated solution is to reserve all address range that potencially could cause such aliases. But with the PCI spec limiting port allocations for devices to a maximum of 256 bytes 16MB of port address space already is way more than one would ever expect to be used so we just reduce the port space to 16MB. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Yoichi Yuasa <yuasa@linux-mips.org> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: linux-mips@linux-mips.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Patchwork: http://patchwork.linux-mips.org/patch/995/
2010-02-27MIPS: Use ALIGN(x, bytes) instead of __ALIGN_MASK(x, bytes - 1)Matt Turner
ALIGN(x, bytes) expands to __ALIGN_MASK(x, bytes - 1), so use the one that is most clear. Signed-off-by: Matt Turner <mattst88@gmail.com> To: linux-mips@linux-mips.org Cc: David Daney <ddaney@caviumnetworks.com> Patchwork: http://patchwork.linux-mips.org/patch/999/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Crazy spinlock speed test.David Daney
This is just a test program for raw_spinlocks. The main reason I wrote it is to validate my spinlock changes that I sent in a previous patch. To use it enable CONFIG_DEBUG_FS and CONFIG_SPINLOCK_TEST then at run time do: # mount -t debugfs none /sys/kernel/debug/ # cat /sys/kernel/debug/mips/spin_single # cat /sys/kernel/debug/mips/spin_multi On my 600MHz octeon cn5860 (16 CPUs) I get spin_single spin_multi base 106885 247941 spinlock_patch 75194 219465 This shows that for uncontended locks the spinlock patch gives 41% improvement and for contended locks 12% improvement (1/time). Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/969/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Optimize spinlocks.David Daney
The current locking mechanism uses a ll/sc sequence to release a spinlock. This is slower than a wmb() followed by a store to unlock. The branching forward to .subsection 2 on sc failure slows down the contended case. So we get rid of that part too. Since we are now working on naturally aligned u16 values, we can get rid of a masking operation as the LHU already does the right thing. The ANDI are reversed for better scheduling on multi-issue CPUs On a 12 CPU 750MHz Octeon cn5750 this patch improves ipv4 UDP packet forwarding rates from 3.58*10^6 PPS to 3.99*10^6 PPS, or about 11%. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/937/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Alchemy: devboard PM needs to save CPLD registers.Manuel Lauss
Save/restore CPLD registers when doing suspend-to-ram; this fixes issues with harddisk and ethernet not working correctly when resuming on DB1200. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/986/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: PowerTV: Eliminate duplicate opcode definition macrosDavid VomLehn
Change to different macros for assembler macros since the old names in powertv_setup.c were co-opted for use in asm/asm.h. This broken the build for the powertv platform. This patch introduces new macros based on the new macros in asm.h to take the place of the old macro values. Signed-off-by: David VomLehn <dvomlehn@cisco.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/985/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Lemote 2F: Move printks out of port_access_lock.Ralf Baechle
No point in protecting them and printks are sloow. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: PNX833x: Convert IRQ controller locks to raw spinlocks.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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