- Jul 08, 2005
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Shaohua Li authored
There has been some discuss about solving the SMP MTRR suspend/resume breakage, but I didn't find a patch for it. This is an intent for it. The basic idea is moving mtrr initializing into cpu_identify for all APs (so it works for cpu hotplug). For BP, restore_processor_state is responsible for restoring MTRR. Signed-off-by:
Shaohua Li <shaohua.li@intel.com> Acked-by:
Andi Kleen <ak@muc.de> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Adrian Bunk authored
This patch by Yoshihiro MATSUYAMA (already ACK'ed by David Howells) adds a defconfig for the frv arch. Signed-Off-By:
Yoshihiro MATSUYAMA <y.matsu@jp.fujitsu.com> Signed-off-by:
Adrian Bunk <bunk@stusta.de> Cc: David Howells <dhowells@redhat.com> Signed-off-by:
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Anton Blanchard authored
We dont need to use the PERFMON exception on POWER5, in fact the firmware returns an error. Due to this just remove the warning. Also now that we have proper runlatch support we can remove the bootup hack. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Michael Ellerman authored
Not sure if we really need this, but it was handy to know which iSeries loop I was testing. Be consistent about printing which idle loop we're using, with this patch we cover all cases. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Anton Blanchard authored
Fix a compile warning introduced by the previous patches. Signed-off-by:
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Anton Blanchard authored
- remove some unnecessary includes - add runlatch support - no need to use raw_smp_processor_id any more, current preempt debug logic checks for processes that are bound to one cpu. Signed-off-by:
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Anton Blanchard authored
- separate out sleep logic in dedicated_idle, it was so far indented that it got squashed against the right side of the screen. - add runlatch support, looping on runlatch disable. Signed-off-by:
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Anton Blanchard authored
- remove min/max yield time, we dont use the values anywhere - separate shared and dedicated idle loops - check need_resched again with irqs off to avoid sleeping with pending work - continually set runlatch off in idle loop, this means we dont need to turn the runlatch off on exception exit and suffer that associated cost for all exceptions. (A future patch will turn the runlatch on at exception entry) Signed-off-by:
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Michael Ellerman authored
Now that the idle loop is configured by each platform we don't need idle_setup() anymore. Signed-off-by:
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Michael Ellerman authored
This patch fixes up iSeries, pSeries, pmac and maple to set the correct idle function for each platform. Signed-off-by:
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Michael Ellerman authored
dedicated_idle() and shared_idle() are only used by pSeries, so move them into pSeries_setup.c Signed-off-by:
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Michael Ellerman authored
Move iSeries_idle() into iSeries_setup.c, no one else needs to know about it. Signed-off-by:
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Michael Ellerman authored
This patch adds an idle member to the ppc_md structure and calls it from cpu_idle(). If a platform leaves ppc_md.idle as null it will get the default idle loop default_idle(). Signed-off-by:
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Milton Miller authored
Now that hvc_get_chars doesn't strip NULs, hvsi doesn't have to duplicate it. Signed-off-by:
Milton Miller <miltonm@bga.com> Signed-off-by:
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Milton Miller authored
Separate the NUL character filtering from get_hvc_chars. Signed-off-by:
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Milton Miller authored
When registering the hvc console port, register a list of ops (read and write) to go with it, instead of calling fixed function names. This allows different ports to encode the data differently. Signed-off-by:
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Milton Miller authored
Remove all the vio device driver code from hvc_console.c This will allow us to separate hvsi, hvc, and allow hvc_console to be used without the ppc64 vio layer. Signed-off-by:
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Milton Miller authored
Separate the console setup routines of the hvc_console and the vio layer. Remove the call to find_init_vty from hvc_console.c. Fail the setup routine if the console doesn't exist, but register the console again when the specified channel is instantiated. This scheme maintains the print buffer semantics while eliminating callout and call back for the console code. Signed-off-by:
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Milton Miller authored
Check if a vterm was registered before accepting it as a console. Check that a slot hasn't been probed with a tty in hvc_instantiate(). Check that a slot hasn't been free'ed when handing out console device. Signed-off-by:
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Milton Miller authored
Statically initialize the vtermnos array. Signed-off-by:
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Milton Miller authored
num_vterms hasn't been used since the hotplug support went in. Also, remove a dead code line from a list_for_each_entry conversion. Signed-off-by:
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Milton Miller authored
hvc_console checks MAGIC_SYSRQ and XMON config vars. Signed-off-by:
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Milton Miller authored
Be thorough in our exit routine, since it says it is there to be so. Unregistering without registering is safe (checked in 2.6.10). Signed-off-by:
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Milton Miller authored
Guard the MAGIC_SYSRQ ^O to be just on the console channel. Make the other channels more transparent. Signed-off-by:
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Milton Miller authored
Have the hvc console code try to pull characters immediately when receiving an interrupt, and kick the poll thread only if the immediate poll indicates it needed a call back to do more work. Signed-off-by:
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Milton Miller authored
Use the vterm numbers to match the vio devices being probed with the indices already allocated via the console initcall function hvc_find_vtys. The old code required hvc_find_vtys to "guess" the matching devices the vio subsystem would find and its probe order. Signed-off-by:
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Milton Miller authored
Milton Miller has done a lot of work to clean up our hvc_console code. One of the important things the following patch series does is separate the VIO layer from the hvc_console code. With the VIO specific code removed any ppc64 platform, or even any architecture, can use hvc_console as a generic polling console. You simply have to supply a get_chars and put_chars method and hvc_console does the rest of the work. You can even use it for an interrupt driven console. This patch: Rearrange the code in drivers/char/hvc_console.c to make future patches smaller. No actual code changes, just ordering of the functions in the file. Signed-off-by:
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Anton Blanchard authored
We already have a prototype for sys_remap_file_pages (239) so there is no need to reserve it twice. Signed-off-by:
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Anton Blanchard authored
- Clean up sys32_getpriority comment. - Add ioprio syscalls, and sign extend 32bit versions. Signed-off-by:
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Anton Blanchard authored
Remove some unnecessary includes, an out of date comment and a prototype for sys_timer_create (which is now in syscalls.h) Signed-off-by:
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Anton Blanchard authored
- Make ioprio syscalls return long, like set/getpriority syscalls. - Move function prototypes into syscalls.h so we can pick them up in the 32/64bit compat code. Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
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Anton Blanchard authored
Enable the runlatch at the start of each exception. Unfortunately we are out of space in the 0x300 handler, so I added it a bit later. The SPR write is fairly expensive, perhaps we should cache the runlatch state in the paca and avoid the write when possible. We don't need to turn the runlatch off, we do that in the idle loop. Better to take the hit in the idle loop than for each exception exit. Signed-off-by:
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Anton Blanchard authored
Not all ppc64 CPUs have the CTRL SPR, so we need a cputable feature for it. Signed-off-by:
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Anton Blanchard authored
Use c99 initialisers in the cputable code. Signed-off-by:
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Olaf Hering authored
Patch from <amodra@bigpond.net.au>, http://sources.redhat.com/bugzilla/show_bug.cgi?id=1042 /usr/bin/ld: arch/ppc64/kernel/vdso32/vdso32.so: The first section in the PT_DYNAMIC segment is not the .dynamic section Signed-off-by:
Olaf Hering <olh@suse.de> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Benjamin Herrenschmidt authored
This patch adds support for some new PHY models to sungem as used on some recent Apple iMac G5 models. Signed-off-by:
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Sam Ravnborg authored
Using the syntax: make dir/module.ko kbuild now allows one to build a module including the final link stage. This is usefull when one only wants to compile a single module and thus do not have to wait until a full kernel has finished compiling. Tested by: randy_dunlap <rdunlap@xenotime.net> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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George Anzinger authored
make O=/dir TAGS fails with: MAKE TAGS find: security/selinux/include: No such file or directory find: include: No such file or directory find: include/asm-i386: No such file or directory find: include/asm-generic: No such file or directory The problem is in this line: ifeq ($(KBUILD_OUTPUT),) KBUILD_OUTPUT is not defined (ever) after make reruns itself. This line is used in the TAGS, tags, and cscope makes. Signed-off-by:George Anzinger <george@mvista.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Anton Blanchard authored
We now print statistics when invoking the OOM killer, however this information is not rate limited and you can get into situations where the console is continually spammed. For example, when a task is exiting the OOM killer will simply return (waiting for that task to exit and clear up memory). If the VM continually calls back into the OOM killer we get thousands of copies of show_mem() on the console. Use printk_ratelimit() to quieten it. Signed-off-by:
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Marcelo Tosatti authored
Remove completly bogus comment from did_some_progress != 0 handling (that same comment is a few lines below on did_some_progress = 0 case, where it belongs). Signed-off-by:
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