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2008-04-17x86: move mp_bus_id_to_local to numa.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: make mp_bus_id_to_type optionalAlexey Starikovskiy
[ mingo@elte.hu: fix boot regression. ] Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: add mp_bus_not_pci bitmap to mpparse_32.cAlexey Starikovskiy
Signed-off: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: get boot_cpu_id as early for k8_scan_nodesYinghai Lu
When acpi=off or there is no SRAT defined, apicid_to_node is got from K8 Northbridge PCI configuration space in k8_scan_nodes() in arch/x86_64/mm/k8toplogy.c. The problem is that it assumes bsp apic id is 0 at that point. For four socket system with Quad core cpus installed, all cpus apic id is offset by 4, and bsp apic id is 4. For eight socket system with dual core cpus installed, all cpus apic id is offset by 2, and bsp apic id is 2. We need get boot_cpu_id --- bsp apic id, before k8_scan_nodes by called. So create early_acpi_boot_init and early_get_smp_config for get boot_cpu_id. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move quad_local_to_mp_bus_id to numa.cAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: correct/clarify comment in nops.hMikael Pettersson
<asm-x86/nops.h> describes certain multibyte instructions as "generic" nops when in fact they aren't nops at all in 64-bit mode (missing REX.W causing truncation of a register). Update the comment to state that K8 or P6 style nops should be used in 64-bit mode. This matches what the alternatives code does. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: prevent unconditional writes to DebugCtl MSRJan Beulich
Otherwise, enabling (or better, subsequent disabling) of single stepping would cause a kernel oops on CPUs not having this MSR. The patch could have been added a conditional to the MSR write in user_disable_single_step(), but centralizing the updates seems safer and (looking forward) better manageable. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: add AMD Northbridge MSR definitionstephane eranian
adds AMD Northbridge config MSR definition Signed-off-by: Stephane Eranian <eranian@gmail.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: add cpu_has_arch_perfmonstephane eranian
adds cpu_has_arch_perfmon to test presence of architectural perfmon on Intel x86 processor Signed-off-by: Stephane Eranian <eranian@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: cleanup duplicate includesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> arch/x86/kernel/reboot.c | 1 - include/asm-x86/elf.h | 5 ++--- include/asm-x86/posix_types.h | 8 +------- include/asm-x86/processor.h | 3 +-- include/asm-x86/unistd.h | 8 +------- 5 files changed, 5 insertions(+), 20 deletions(-) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: introduce initial apicidYinghai Lu
store initial_apicid from early identify. it is could be different from phys_proc_id later. also print it out in /proc/cpuinfo. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: remove mach_reboot.hIngo Molnar
all reboot details are handled in reboot.c and quirks are handled via reboot_fixups_32.c. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: enhance DEBUG_RODATA support - alternativesMathieu Desnoyers
Fix a memcpy that should be a text_poke (in apply_alternatives). Use kernel_wp_save/kernel_wp_restore in text_poke to support DEBUG_RODATA correctly and so the CPU HOTPLUG special case can be removed. Add text_poke_early, for alternatives and paravirt boot-time and module load time patching. Changelog: - Fix text_set and text_poke alignment check (mixed up bitwise and and or) - Remove text_set - Export add_nops, so it can be used by others. - Document text_poke_early. - Remove clflush, since it breaks some VIA architectures and is not strictly necessary. - Add kerneldoc to text_poke and text_poke_early. - Create a second vmap instead of using the WP bit to support Xen and VMI. - Move local_irq disable within text_poke and text_poke_early to be able to be sleepable in these functions. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Andi Kleen <andi@firstfloor.org> CC: pageexec@freemail.hu CC: H. Peter Anvin <hpa@zytor.com> CC: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move extern declaration to vdso.hIngo Molnar
Before: total: 0 errors, 3 warnings, 685 lines checked After: total: 0 errors, 1 warnings, 678 lines checked No code changed: arch/x86/kernel/signal_32.o: text data bss dec hex filename 5333 0 4 5337 14d9 signal_32.o.before 5333 0 4 5337 14d9 signal_32.o.after md5: c279e98012a2808e90cfa2a7787e42a4 signal_32.o.before.asm c279e98012a2808e90cfa2a7787e42a4 signal_32.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: include/asm-x86/mutex_32.h - use angle brackets for includeJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: add comments to processor.hIngo Molnar
add comments to the FPU structures of processor.h. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify setup_trampolineGlauber Costa
setup_trampoline() looks very similar between architectures, and this patch unifies them. The i386 version allocates bootmem memory, while the x86_64 version uses a fixed address. In this patch, we initialize the global trampoline_base to the x86_64 version, and i386 allocation can later override it. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move trampoline arrays extern definition to smp.hGlauber Costa
In here, they can serve both architectures Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: merge __cpu_disable and cpu_dieGlauber Costa
They are now equal, and are moved to a common file Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move hotplug related extern definitions to smp.hGlauber Costa
definitions that are inside CONFIG_HOTPLUG_CPU in the arch-specific smp*.h files are moved to common header Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: make set_cpu_sibling_map nonstaticGlauber Costa
And move its extern definition to smp.h, the common header Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move equal types to common fileGlauber Costa
move definitions that are now equal in type from smpboot_{32,64}.c to smpboot.c cpu_callin_map is put temporarily in smp_64.h (already exists in smp_32.h), and will soon be merged. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: adjust types in smpcommon_32.cGlauber Costa
so they can have the same type as x86_64 Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: remove cpu_llc_id from processor.hGlauber Costa
it is already defined in smp.h Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify smp_send_stopGlauber Costa
function definition is moved to common header. x86_64 version is now called native_smp_send_stop Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: provide hlt_works function.Glauber Costa
In x86_64, hlt always work. in i386, we'll query the cpuinfo associated with this cpu Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move prefill_possible_map to common fileGlauber Costa
this patches moves prefill_possible_map() to smpboot.c Right now it is x86_64-specific, but nothing intrinsically prevents it to be used by i386 Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move disabled_cpus to common headerGlauber Costa
disabled_cpus is (up to now) a x86_64-only contruction. But it's extern declaration can be moved to common header anyway Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify smp_cpus_doneGlauber Costa
definition is moved to common header. x86_64 version is now called native_smp_cpus_done Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify smp_prepare_cpusGlauber Costa
definition is moved to common header. x86_64 version is now called native_smp_prepare_cpus Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify prepare_boot_cpuGlauber Costa
definition is moved to common header. x86_64 version is now called native_prepare_boot_cpu Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify __cpu_up.Glauber Costa
function definition is moved to common header. x86_64 version is now called native_cpu_up Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: unify smp_call_function_maskGlauber Costa
definition is moved to common header, x86_64 function name now is native_smp_call_function_mask Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: merge smp_send_rescheduleGlauber Costa
function definition is moved to common header, x86_64 version is now called native_smp_send_reschedule Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: move smp_ops extern declaration to common headerGlauber Costa
the smp_ops symbol is temporarily defined in smp_64.c, but it will soon be unified Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: define smp_ops in common headerGlauber Costa
x86_64 will benefit from it Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: merge extern variables definitionsGlauber Costa
move extern definitions that are the same between smp_{32,64}.h to smp.h Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: merge extern function definitionsGlauber Costa
move extern function definitions that are the same between smp_{32,64}.h to smp.h Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: commonize smp.hGlauber Costa
this is the first step of integrating smp.h between x86_64 and i386 Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: fix switch_to() clobbersIngo Molnar
Liu Pingfan noticed that switch_to() clobbers more registers than its asm constraints specify. We get away with this due to luck mostly - schedule() by its nature only has 'local' state which gets reloaded automatically. Fix it nevertheless, we could hit this anytime. it turns out that with the extra constraints gcc manages to make schedule() even more compact: text data bss dec hex filename 28626 684 2640 31950 7cce sched.o.before 28613 684 2640 31937 7cc1 sched.o.after Reported-by: Liu Pingfan <kernelfans@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up switch_to()Ingo Molnar
Make the code more readable and more hackable: - use symbolic asm parameters - use readable indentation - add comments that explains the details No code changed: kernel/sched.o: text data bss dec hex filename 28626 684 2640 31950 7cce sched.o.before 28626 684 2640 31950 7cce sched.o.after md5: 2823d406c18b781975cdb2e7cfea0059 sched.o.before.asm 2823d406c18b781975cdb2e7cfea0059 sched.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: wmb() confusion in system.hPavel Machek
Comment says wmb is a nop, but it is implemented as lock addl below... Should it be compiled to nop if we know we are running on "good" Intel cpu? At least remove confusing comment for now. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: debug pmd_bad()Ingo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: redo cded932b75ab0a5f9181eIngo Molnar
redo commit cded932b75ab0a5f9181e. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86, tracing: add notrace to asm-x86/linkage.hIngo Molnar
notrace signals that a function should not be traced. Most of the time this is used by tracers to annotate code that cannot be traced - it's in a volatile state (such as in user vdso context or NMI context) or it's in the tracer internals. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up cpu capabilities accessesIngo Molnar
introduce test_cpu_cap() for raw access to the real CPU capabilities as they are present in x86_capability. (cpu_has() will shortcut certain tests during build-time) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: apic_is_clustered_box for vsmpYinghai Lu
quad core 8 socket system will have apic id lifting.the apic id range could be [4, 0x23]. and apic_is_clustered_box will think that need to three clusters and that is larger than 2. So it is treated as a clustered_box. and will get: Marking TSC unstable due to TSCs unsynchronized even if the CPUs have X86_FEATURE_CONSTANT_TSC set. this quick fix will check if the cpu is from AMD. but vsmp still needs that checking... this patch is fix to make sure that vsmp not to be passed. Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up e820_reserve_resources on 64-bitYinghai Lu
e820_resource_resources could use insert_resource instead of request_resource also move code_resource, data_resource, bss_resource, and crashk_res out of e820_reserve_resources. Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: de-macro start_thread()Ingo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17x86: clean up include/asm-x86/processor.hIngo Molnar
basic style cleanup to flush out years of neglect: - consistent indentation - whitespace fixes - consistent comments Signed-off-by: Ingo Molnar <mingo@elte.hu>