- 29 10月, 2009 1 次提交
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由 Rusty Russell 提交于
Now that the return from alloc_percpu is compatible with the address of per-cpu vars, it makes sense to hand around the address of per-cpu variables. To make this sane, we remove the per_cpu__ prefix we used created to stop people accidentally using these vars directly. Now we have sparse, we can use that (next patch). tj: * Updated to convert stuff which were missed by or added after the original patch. * Kill per_cpu_var() macro. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NTejun Heo <tj@kernel.org> Reviewed-by: NChristoph Lameter <cl@linux-foundation.org>
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- 22 3月, 2007 2 次提交
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由 Anton Blanchard 提交于
I noticed that we execute hcalls before cpu feature code has run (eg for setting up the bolted kernel region). This means that we may be executing code that is not appropriate for the processor we have. Create an unconditional branch that we nop out all the time to fix this. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mohan Kumar M 提交于
kexec invokes plpar_hcall hypervisor call in real mode. plpar_hcall refers to per cpu variables for accounting hypervisor statistics. These variables may not be in the RMO region, so accesses to them in real mode may result in a data storage exception. This fixes this problem by using a new plpar_hcall_raw function which does not update the hypervisor call statistics. Thanks to Anton for suggesting this idea. Signed-off-by: NMohan Kumar M <mohan@in.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 1月, 2007 2 次提交
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由 Anton Blanchard 提交于
There were a few issues with the HCALL_STATS code: - PURR cpu feature checks were backwards - We iterated one entry off the end of the hcall_stats array - Remove dead update_hcall_stats() function prototype I noticed one thing while debugging, and that is we call H_ENTER (to set up the MMU hashtable in early init) before we have done the cpu fixups. This means we will execute the PURR SPR reads even on a CPU that isnt capable of it. I wonder if we can move the CPU feature fixups earlier. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Anton Blanchard 提交于
It looks to me like we are corrupting r12 in the hcall9 function. Although we have r0 free we cant use offsets against it, so save away r12 in there instead. r12 holds the ninth return value from the hypervisor call, so without this fix, the caller will see the wrong value for the ninth element in the array that gets the return values. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 13 9月, 2006 1 次提交
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由 Mike Kravetz 提交于
Add instrumentation for hypervisor calls on pseries. Call statistics include number of calls, wall time and cpu cycles (if available) and are made available via debugfs. Instrumentation code is behind the HCALL_STATS config option and has no impact if not enabled. Signed-off-by: NMike Kravetz <kravetz@us.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 01 8月, 2006 1 次提交
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由 Anton Blanchard 提交于
Our pseries hcall interfaces are out of control: plpar_hcall_norets plpar_hcall plpar_hcall_8arg_2ret plpar_hcall_4out plpar_hcall_7arg_7ret plpar_hcall_9arg_9ret Create 3 interfaces to cover all cases: plpar_hcall_norets: 7 arguments no returns plpar_hcall: 6 arguments 4 returns plpar_hcall9: 9 arguments 9 returns There are only 2 cases in the kernel that need plpar_hcall9, hopefully we can keep it that way. Pass in a buffer to stash return parameters so we avoid the &dummy1, &dummy2 madness. Signed-off-by: NAnton Blanchard <anton@samba.org> -- Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 01 4月, 2006 1 次提交
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由 Heiko J Schick 提交于
This extends the HCALL interface for InfiniBand usage. I've made the patch against the linux-2.6 git tree and Segher's patch: [PATCH] Change H_StudlyCaps to H_SHOUTING_CAPS We moved this into the common powerpc code based on comments we got after posting the first eHCA InfiniBand device driver patch. Signed-off-by: NHeiko j Schick <schickhj@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 10 2月, 2006 1 次提交
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由 Jon Mason 提交于
This patch removes all self references and fixes references to files in the now defunct arch/ppc64 tree. I think this accomplises everything wanted, though there might be a few references I missed. Signed-off-by: NJon Mason <jdmason@us.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 10 10月, 2005 1 次提交
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由 Paul Mackerras 提交于
Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 01 5月, 2005 1 次提交
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由 Anton Blanchard 提交于
Calls into the hypervisor do not raise the thread priority. Ensure we are running at medium priority upon entry to the hypervisor. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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