- 17 Apr, 2008 40 commits
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Roland McGrath authored
When we're stopped at syscall entry tracing, ptrace can change the %rax value from -ENOSYS to something else. If no system call is actually made because the syscall number (now in orig_rax) is bad, then we now always reset %rax to -ENOSYS again. This changes it to leave the return value alone after entry tracing. That way, the %rax value set by ptrace is there to be seen in user mode (or in syscall exit tracing). This is consistent with what the 32-bit kernel does. Signed-off-by:
Roland McGrath <roland@redhat.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Roland McGrath authored
When we're stopped at syscall entry tracing, ptrace can change the %eax value from -ENOSYS to something else. If no system call is actually made because the syscall number (now in orig_eax) is bad, then the %eax value set by ptrace should be returned to the user. But, instead it gets reset to -ENOSYS again. This is a regression from the native 32-bit kernel. This change fixes it by leaving the return value alone after entry tracing. Signed-off-by:
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Adrian Bunk authored
This patch removes the write-only timer_uses_ioapic_pin_0 (gsi can't be <= 15 in the line of it's fake usage in mpparse_32.c). Spotted by the GNU C compiler. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Ingo Molnar authored
code got a bit smaller: arch/x86/kernel/vsmp_64.o: text data bss dec hex filename 205 4 0 209 d1 vsmp_64.o.before 181 4 0 185 b9 vsmp_64.o.after Signed-off-by: -
Ravikiran G Thirumalai authored
Indicate TSCs are unreliable as time sources if the platform is a multi chassi ScaleMP vSMPowered machine. Signed-off-by:
Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by:
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Ravikiran G Thirumalai authored
Re-arrange set_vsmp_pv_ops so that pv_ops are set only if the platform has capability to support paravirtualized irq ops Signed-off-by:
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Ravikiran G Thirumalai authored
- Fix the the build breakage when PARAVIRT is defined but PCI is not This fixes problem reported at: http://marc.info/?l=linux-kernel&m=120525966600698&w=2 - Make is_vsmp_box() available even when PARAVIRT is not defined. This is needed to determine if tsc's are reliable as a time source even when PARAVIRT is not defined. - split vsmp_init to use is_vsmp_box() and set_vsmp_pv_ops() set_vsmp_pv_ops will do nothing if PCI is not enabled in the config. Signed-off-by:
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Ravikiran G Thirumalai authored
is_vsmp_box() currently does not work on vSMPowered systems, as pci cfg space is not read correctly -- This patch fixes it. Signed-off-by:
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Alexey Starikovskiy authored
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Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by:
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Alexey Starikovskiy authored
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Glauber de Oliveira Costa authored
Remove the last leftovers from the files. Move the ones that are still used to the files they belong, the others that grep can't reach, simply throw away. Merge comments ontop of file and that's it: smpboot integrated Signed-off-by:
Glauber Costa <gcosta@redhat.com> Signed-off-by:
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Glauber de Oliveira Costa authored
They are i386 specific (the x86_64 definitions live elsewhere, and should remain there), so are enclosed around an ifdef Signed-off-by:
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Glauber de Oliveira Costa authored
this is the last remaining function in smpboot_32.c Since it is i386 specific, move it around an ifdef to smpboot.c Signed-off-by:
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Glauber de Oliveira Costa authored
With the previous changes, code for native_smp_prepare_cpus() in i386 and x86_64 now look very similar. merge them into smpboot.c. Minor differences are inside ifdef Signed-off-by:
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Glauber de Oliveira Costa authored
x86_64 has two nr_ioapics = 0 statements. In 32-bit, it can be done too. We do it through the smpboot_clear_io_apic() inline function, to cope with subarchitectures (visws) that does not compile mpparse in Signed-off-by:
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Glauber de Oliveira Costa authored
They are mostly inocuous. APIC_INTEGRATED will expand to 1, check_phys_apicid_present is checking for the same thing it was before, etc. But the code is identical to i386 now, and will allow us to integrate it. Signed-off-by:
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Glauber de Oliveira Costa authored
This test exists in x86_64 and also applies to i386. So we add it Signed-off-by:
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Glauber de Oliveira Costa authored
An APIC test is moved, and code is replaced by the mach-default already defined function (smpboot_setup_io_apic). setup_portio_remap() is added, but it is a nop in mach-default. Signed-off-by:
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Glauber de Oliveira Costa authored
change smpboot_setup_io_apic() by to match x86_64 behaviour Signed-off-by:
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Glauber de Oliveira Costa authored
Add function calls to native_smp_prepare_cpus in i386 to match x86_64 Signed-off-by:
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Glauber de Oliveira Costa authored
This patch get rid of smp_boot_cpus(), since it does not boot any cpu anymore. Its code is split in a way to make it closer to x86_64 Signed-off-by:
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Glauber de Oliveira Costa authored
if smp configuration is not found at all, hook into 0. This is done to match x86_64 Signed-off-by:
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Glauber de Oliveira Costa authored
They look similar enough, and are merged. Only difference (zap_low_mapping for i386) is inside ifdef Signed-off-by:
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Glauber de Oliveira Costa authored
it is practically the same between arches now, so it is moved to smpboot.c. Minor differences (gdt initialization) live inside an ifdef Signed-off-by:
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Glauber de Oliveira Costa authored
It now looks the same between architectures, so we merge it in smpboot.c. Minor differences goes inside an ifdef Signed-off-by:
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Glauber de Oliveira Costa authored
This is a very large patch, because it depends on a lot of auxiliary static functions. But they all have been modified to the point that they're sufficiently close now. So they're just merged in smpboot.c Signed-off-by:
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Glauber de Oliveira Costa authored
This is to match i386. The former name was cuter, but the current is more meaningful and more general, since cpu_id can be a logical id. Signed-off-by:
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Glauber de Oliveira Costa authored
voyager would conflict with it, but the types are ultimately compatible. So remove the extern definition from voyager_smp.c in favour of the common one Signed-off-by:
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Glauber de Oliveira Costa authored
Move map_cpu_to_logical_apicid() and unmap_cpu_to_logical_apicid() to smpboot.c. They take together all the bunch of static functions they rely upon Signed-off-by:
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Glauber de Oliveira Costa authored
Now that we boot cpus here, callin_map has this meaning (same as x86_64) Signed-off-by:
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Glauber de Oliveira Costa authored
wakeup_secondary_via_INIT => wakeup_secondary_cpu. This is to match i386, where init is not always used. Signed-off-by:
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Glauber de Oliveira Costa authored
After the inclusion, a lot of files needs fixing for conflicts, some of them in the headers themselves, to accomodate for both i386 and x86_64 versions. [ mingo@elte.hu: build fix ] Signed-off-by:
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