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2008-10-13x86, uv: fix for size of hub mappingsJack Steiner
Fix the size of the mappings of UV hub registers. Size must be a function of the maximum node number within the SSI. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: cleanup, remove extra ifdefYinghai Lu
also change two functions to static. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: i386: make do_trap more like x86_64Alexander van Heukelum
This patch hardcodes which traps should be forwarded to handle_vm86_trap in do_trap. This allows to remove the vm86 parameter from the i386-version of do_trap, which makes the DO_VM86_ERROR and DO_VM86_ERROR_INFO macros unnecessary. x86_64 part is whitespace only. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: x86_64: remove trace_hardirqs_fixup from debug handlerAlexander van Heukelum
All exceptions are taken via interrupt gates. TRACE_IRQS_OFF is called just before entering the C code, so the irq state is known to the irq tracer at this point. No need to call trace_hardirqs_fixup. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: x86_64: remove trace_hardirqs_fixup from int3 handlerAlexander van Heukelum
All exceptions are taken via interrupt gates. TRACE_IRQS_OFF is called just before entering the C code, so the irq state is known to the irq tracer at this point. No need to call trace_hardirqs_fixup. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: x86_64: remove trace_hardirqs_fixup from DO_ERROR_INFO macroAlexander van Heukelum
All exceptions are taken via interrupt gates. TRACE_IRQS_OFF is called just before entering the C code, so the irq state is known to the irq tracer at this point. No need to call trace_hardirqs_fixup. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: x86_64: add TRACE_IRQS_OFF in paranoidentry macroAlexander van Heukelum
Add TRACE_IRQS_OFF just before entering the C code. All exceptions are taken via interrupt gates. If irq tracing is enabled, it should be notified as soon as possible. Interrupts are only (conditionally) re-enabled in C code. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13traps: x86_64: add TRACE_IRQS_OFF in error_entryAlexander van Heukelum
Add TRACE_IRQS_OFF just before entering the C code. All exceptions are taken via interrupt gates. If irq tracing is enabled, it should be notified as soon as possible. Interrupts are only (conditionally) re-enabled in C code. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86, uv: add early detection of UV system typesJack Steiner
Portions of the ACPI code needs to know if a system is a UV system prior to genapic initialization. This patch adds a call early_acpi_boot_init() so that the apic type is discovered earlier. V2 of the patch adding fixes from Yinghai Lu. Much cleaner and smaller. Signed-off-by: Jack Steiner <steiner@sgi.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: move vgetcpu mode probing to cpu detectionGlauber Costa
Take it out of time initialization and move it to cpu detection time. Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: wrap MCA_bus test around an ifdefGlauber Costa
Only test for MCA_bus if support for MCA is compiled in. Also, for x86_64, write the code inside the conditional for consistency with i386. It won't bite us, since it'll probably never select CONFIG_MCA anyway. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: replace hardcoded numberGlauber Costa
Replace "4" in time_32.c code by sizeof(long). This way, it can work on x86_64 too. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: rename timer_event_interrupt to timer_interruptGlauber Costa
Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: make init_ISA_irqs nonstaticGlauber Costa
Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: factor out irq initialization for x86_64Glauber Costa
Provide apic_intr_init and smp_intr_init functions. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: bind irq0 irq data to cpu0Glauber Costa
Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: use user_mode_vm instead of user_modeGlauber Costa
For x86_64, it does not really matter. But makes the code equal to i386. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: use frame pointer information on x86_64 profile_pcGlauber Costa
Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: set bp field in pt_regs properlyGlauber Costa
Save rbp twice: One is for marking the stack frame, as usual (already there), and the other, to fill pt_regs properly. This is because bx comes right before the last saved register in that structure, and not bp. If the base pointer were in the place bx is today, this would not be needed. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: coalesce testsGlauber Costa
Coalesce v8086_mode and user_mode into a single user_mode_vm() test. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: use user_mode macroGlauber Costa
Instead of using SEGMENT_IS_KERNEL_CODE, use the "user_mode" macro, which can play the same role. Delete the former, since it now lacks any user. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: cpu don't print duplicated vendor stringYinghai Lu
Some CPUs have vendor string in the middle of model_id instead of beginning Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: smpboot - check if we have ESR register in wakeup_secondary_cpuCyrill Gorcunov
We should check if we have ESR register before reading from it. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: print out EBDA/lowmem addressIngo Molnar
it's useful for debugging purposes to know the location of the EBDA. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: check dsdt before find oem table for es7000, v2Yinghai Lu
v2: use __acpi_unmap_table() Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: use early_memremap() in setup.cJeremy Fitzhardinge
The remappings in setup.c are all just ordinary memory, so use early_memremap() rather than early_ioremap(). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: trace_hardirqs_fixup should now not be necessary: irqs are off.Alexander van Heukelum
The exception handlers in entry_32.S should now all call TRACE_IRQS_OFF before calling the C code. The calls to trace_hardirqs_fixup should now be unnecessary. Remove them. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for the exception 3 (int3)Alexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for the nmiAlexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF for exception 1 (debug)Alexander van Heukelum
At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: add TRACE_IRQS_OFF to entry_32.S in 'error_code'Alexander van Heukelum
Many exceptions use the same code path via the label 'error_code' in entry_32.S. At this point interrupts are off, so let's inform the tracing code of that fact before calling into C. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: remove temporary DO_TRAP macros, expanding the last one usedAlexander van Heukelum
Only one use of the DO_TRAP macros remains. Expand that one and remove the macros now. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 19 to an interrupt gateAlexander van Heukelum
Handle SIMD coprocessor exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 18 to an interrupt gateAlexander van Heukelum
Handle machine check exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 17 to an interrupt gateAlexander van Heukelum
Handle alignment check exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 16 to an interrupt gateAlexander van Heukelum
Handle coprocessor error exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 15 to an interrupt gateAlexander van Heukelum
Handle exception 15 with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 13 to an interrupt gateAlexander van Heukelum
Handle general protection exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 12 to an interrupt gateAlexander van Heukelum
Handle stack segment exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 11 to an interrupt gateAlexander van Heukelum
Handle segment not present exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 10 to an interrupt gateAlexander van Heukelum
Handle invalid TSS exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 9 to an interrupt gateAlexander van Heukelum
Handle coprocessor segment overrun exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 7 to an interrupt gateAlexander van Heukelum
Handle no coprocessor exception with interrupt initially off. device_not_available in entry_32.S calls either math_state_restore or math_emulate. This patch adds an extra indirection to be able to re-enable interrupts explicitly in traps_32.c Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 6 to an interrupt gateAlexander van Heukelum
Handle invalid opcode exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 5 to an interrupt gateAlexander van Heukelum
Handle bounds exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 4 to an interrupt gateAlexander van Heukelum
Handle overflow exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: expand exception 3 DO_TRAP macroAlexander van Heukelum
The int3 exception was already takes as an interrupt and do_int3 does not fit in the new DO_ERROR macro. This patch just expands the DO_TRAP macro and rearranges the code a bit. No functional changes intended. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: convert hardware exception 0 to an interrupt gateAlexander van Heukelum
Handle divide error exception with interrupt initially off. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: prepare to convert exceptions to interruptsAlexander van Heukelum
There is some macro magic in traps_32.c to construct standard exception dispatch functions. This patch renames the DO_ERROR- like macros to DO_TRAP, and introduces new DO_ERROR ones that conditionally reenable interrupts explicitly, like x86_64. No code changes. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13i386: remove kprobes' restore_interrupts in favour of conditional_stiAlexander van Heukelum
x86_64 uses a helper function conditional_sti in traps_64.c which is equal to restore_interrupts in kprobes.h. The only user of restore_interrupts is in traps_32.c. Introduce conditional_sti for i386 and remove restore_interrupts. Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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