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2008-01-30x86 vDSO: ia32 vsyscall removalRoland McGrath2-21/+0
This removes all the old vsyscall code from arch/x86/ia32/ that is no longer used because arch/x86/vdso/ code has replaced it. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 vDSO: consolidate vdso32Roland McGrath1-9/+14
This makes x86_64's ia32 emulation support share the sources used in the 32-bit kernel for the 32-bit vDSO and much of its setup code. The 32-bit vDSO mapping now behaves the same on x86_64 as on native 32-bit. The abi.syscall32 sysctl on x86_64 now takes the same values that vm.vdso_enabled takes on the 32-bit kernel. That is, 1 means a randomized vDSO location, 2 means the fixed old address. The CONFIG_COMPAT_VDSO option is now available to make this the default setting, the same meaning it has for the 32-bit kernel. (This does not affect the 64-bit vDSO.) The argument vdso32=[012] can be used on both 32-bit and 64-bit kernels to set this paramter at boot time. The vdso=[012] argument still does this same thing on the 32-bit kernel. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 vDSO: ia32 sysenter_returnRoland McGrath1-0/+3
This changes the 64-bit kernel's support for the 32-bit sysenter instruction to use stored fields rather than constants for the user-mode return address, as the 32-bit kernel does. This adds a sysenter_return field to struct thread_info, as 32-bit has. There is no observable effect from this yet. It makes the assembly code independent of the 32-bit vDSO mapping address, paving the way for making the vDSO address vary as it does on the 32-bit kernel. [ akpm@linux-foundation.org: build fix on !CONFIG_IA32_EMULATION ] Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 vDSO: i386 vdso32Roland McGrath2-10/+17
This makes the i386 kernel use the new vDSO build in arch/x86/vdso/vdso32/ to replace the old one from arch/x86/kernel/. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 vDSO: use vdso-syms.ldsRoland McGrath1-0/+14
This patch changes the kernel's references to addresses in the vDSO image to be based on the symbols defined by vdso-syms.lds instead of the old vdso-syms.o symbols. This is all wrapped up in a macro defined by the new asm-x86/vdso.h header; that's the only place in the kernel source that has to know the details of the scheme for getting vDSO symbol values. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: randomize brkJiri Kosina1-0/+3
Randomize the location of the heap (brk) for i386 and x86_64. The range is randomized in the range starting at current brk location up to 0x02000000 offset for both architectures. This, together with pie-executable-randomization.patch and pie-executable-randomization-fix.patch, should make the address space randomization on i386 and x86_64 complete. Arjan says: This is known to break older versions of some emacs variants, whose dumper code assumed that the last variable declared in the program is equal to the start of the dynamically allocated memory region. (The dumper is the code where emacs effectively dumps core at the end of it's compilation stage; this coredump is then loaded as the main program during normal use) iirc this was 5 years or so; we found this way back when I was at RH and we first did the security stuff there (including this brk randomization). It wasn't all variants of emacs, and it got fixed as a result (I vaguely remember that emacs already had code to deal with it for other archs/oses, just ifdeffed wrongly). It's a rare and wrong assumption as a general thing, just on x86 it mostly happened to be true (but to be honest, it'll break too if gcc does something fancy or if the linker does a non-standard order). Still its something we should at least document. Note 2: afaik it only broke the emacs *build*. I'm not 100% sure about that (it IS 5 years ago) though. [ akpm@linux-foundation.org: deuglification ] Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: extended interrupt LVT support for AMD BarcelonaRobert Richter2-9/+14
Also macro definitions in apicdef.h has been updated. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: untable __init references between IO dataAndi Kleen1-0/+1
Earlier patch added IO APIC setup into local APIC setup. This caused modpost warnings. Fix them by untangling setup_local_APIC() and splitting it into smaller functions. The IO APIC initialization is only called for the BP init. Also removed some outdated debugging code and minor cleanup. [ tglx: arch/x86 adaptation ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: store core id bits in cpuinfo_x8Yinghai Lu1-0/+1
We need to store core id bits to cpuinfo_x86 in early_identify_cpu. So we use it to create acpiid_to_node array in k8topolgy.c Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: clear IO_APIC before enabing apic error vector.Yinghai Lu1-0/+1
4 socket quad core, 8 socket quad core will do apic ID lifting for BSP. But io-apic regs for ExtINT still use 0 as dest. so when we enable apic error vector in BSP, we will get one APIC error. CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 0/4 -> Node 0 CPU: Physical Processor ID: 1 CPU: Processor Core ID: 0 SMP alternatives: switching to UP code ACPI: Core revision 20070126 enabled ExtINT on CPU#0 ESR value after enabling vector: 00000000, after 0000000c APIC error on CPU0: 0c(08) ENABLING IO-APIC IRQs Synchronizing Arb IDs. So move enable_IO_APIC from setup_IO_APIC into setup_local_APIC and call it before enabling the ACPI error vector. [ tglx: arch/x86 adaptation ] Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: merge resume-trace.h variantsThomas Gleixner4-30/+21
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge topology.h variantsThomas Gleixner3-209/+141
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: consolidate toloplogy_32/64.hThomas Gleixner3-48/+80
Reorder defines and do white space / coding style cleanups to get a readable diff. Also convert the macros to inline functions. Move the pci related inlines to pci.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: adjust numa 32 namespaceThomas Gleixner1-4/+4
Use the 64bit numa variable names for numa32 as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: fixup numa 64 namespaceThomas Gleixner2-6/+6
Using a variable name, which is the same as a macro name is not really smart. Change the variable names and fixup all users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge include/asm-x86/sparsemem.hThomas Gleixner3-291/+156
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge include/asm-x86/sparsemem.hThomas Gleixner4-57/+34
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: put all kern_addr_valid() incarnations to pgtable.hThomas Gleixner3-7/+7
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge acpi_32/64.hThomas Gleixner3-281/+143
Merge the files. [ mingo@elte.hu: build fix ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: cleanup acpi_32/64.hThomas Gleixner2-45/+31
Fix coding style to get a readable diff Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: cleanup smp.h variantsThomas Gleixner5-152/+104
Bring the smp.h variants into sync to prepare merging and paravirt support. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: merge mpspec variantsThomas Gleixner3-165/+111
The delta is now minimal. Merge them Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: cleanup mpspec variantsThomas Gleixner8-269/+131
Bring the mpspec variants into sync to prepare merging and paravirt support. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: merge tlbflush.h variantsThomas Gleixner3-290/+155
The delta is now minimal. Merge them Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: cleanup tlbflush.h variantsThomas Gleixner3-89/+118
Bring the tlbflush.h variants into sync to prepare merging and paravirt support. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: merge spinlock.h variantsThomas Gleixner3-396/+209
Merge them finally together Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: spinlock_32/64 substitute types and instructionsThomas Gleixner2-24/+38
Use _slock_t for the spinlock data types and replace the instructions by string defines, which makes the code of 32/64 bit versions more or less identical. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: spinlock_32/64 match the jump labels and symbolsThomas Gleixner2-11/+11
Match the jump labels in the 32/64 variants and switch the 64bit version to symbols, so the functions are almost identical except for the operand size now. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: use immediates instead of RW_LOCK_BIAS_STRThomas Gleixner3-8/+7
Use immediate instead of the RW_LOCK_BIAS_STR. Makes the code more readable and gets rid of the string constant. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: fix asm constraints in spinlock_32/64.hThomas Gleixner2-6/+6
Use the correct constraints for the spinlock assembler functions. read (modify) write functions need "+m" instead of "=m" Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: consolidate spinlock.hGlauber de Oliveira Costa3-58/+64
The cli and sti instructions need to be replaced by paravirt hooks. For the i386 architecture, this is already done. The code requirements aren't much different from x86_64 POV, so this part is consolidated in the common header Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: irqflags consolidationGlauber de Oliveira Costa4-376/+248
This patch consolidates the irqflags include files containing common paravirt definitions. The native definition for interrupt handling, halt, and such, are the same for 32 and 64 bit, and they are kept in irqflags.h. the differences are split in the arch-specific files. The syscall function, irq_enable_sysexit, has a very specific i386 naming, and its name is then changed to a more general one. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: clean up stack allocation and freeclameter@sgi.com1-11/+5
Clean up the allocation and freeing of stacks a bit by using a __GFP_ZERO flag instead of memset. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Mike Travis <travis@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: bitops_32.h style cleanupsRandy Dunlap1-24/+24
Coding style cleanups in x86/bitops_32.h: - drop space in "* addr" - whitespace & indentation fixes - spello fixes Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: remove extern declarations for code, data, bss resourcesBernhard Walle3-1/+12
This patch removes the extern struct resource declarations for data_resource, code_resource and bss_resource on x86 and declares that three structures as static as done on other architectures like IA64. On i386, these structures are moved to setup_32.c (from e820_32.c) because that's code that is not specific to e820 and also required on EFI systems. That makes the "extern" reference superfluous. On x86_64, data_resource, code_resource and bss_resource are passed to e820_reserve_resources() as arguments just as done on i386 and IA64. That also avoids the "extern" reference and it's possible to make it static. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: mtrr use type bool [RESEND AGAIN]Paul Jimenez1-4/+4
This is a janitorish patch to 1) remove private TRUE/FALSE #def's in favor of using the standard enum from linux/stddef.h and 2) switch the variables holding those values to type 'bool' (from linux/types.h) since it both seems more appropriate and allows for potentially better optimization. As a truly minor aside, I removed a couple of comments documenting a 'do_safe' parameter that seems to no longer exist. Signed-off-by: Paul Jimenez <pj@place.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: pci-dma_64.c: cleanupsAdrian Bunk1-1/+0
This patch contains the following cleanups: - make the needlessly global iommu_setup() static - remove the unused EXPORT_SYMBOL(iommu_merge) Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: nmi_64.c: make code staticAdrian Bunk1-2/+0
This patch makes the following needlessly global code static: - panic_on_timeout - setup_nmi_watchdog() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86 e820_64.c: make 2 functions staticAdrian Bunk1-1/+0
This patch makes the following needlessly global functions static: - e820_print_map() - early_panic() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: actually merge <asm/alternative.h>H. Peter Anvin3-325/+159
This actually merges <asm-x86/alternative_{32,64}.h> into <asm-x86/alternative.h>. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: prepare merger of <asm/alternative_{32,64}.h>H. Peter Anvin2-103/+112
Prepare for merging <asm/alternative_{32,64}.h> by making the 32- and 64-bit versions textually identical. This involves: - removing arbitrary header inclusion differences - reorganizing the 32-bit version slightly to match the 64-bit version - using <asm/asm.h> to unify the assembly code - renaming struct paravirt_patch to struct paravirt_patch_site in the 64-bit version to match the 32-bit version; there are no references to struct paravirt_patch elsewhere in the tree. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: move 8259 defines to i8259.hThomas Gleixner2-26/+16
Move the i8259 defines and remove the now io_ports.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: remove more bogus filenames in comments.Dave Jones21-43/+7
Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: nuke a ton of unused exportsThomas Gleixner2-4/+1
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: remove dead code and exportsThomas Gleixner1-1/+0
No users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: nuke a ton of dead hpet codeThomas Gleixner1-3/+0
No users, just ballast Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: isolate the rtc code for sharingThomas Gleixner3-112/+4
The mach-default/mach_time.h code inline is moved to arch/x86/kernel/rtc.c and the header files are adjusted. Shrink the 3 dozen includes to the ones we really need. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: unify mc146818rtc.h - prepare for sharing rtc codeThomas Gleixner3-129/+95
Unify mc146818rtc.h by adding the rtc_cmos_read/write functions to time_64.c. This is a preparatory patch to finaly share the rtc code, which is unsurprisingly similar. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge include/asm-x86/scatterlist.hThomas Gleixner3-59/+32
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30x86: merge include/asm-x86/dma.hThomas Gleixner3-603/+316
Almost identical. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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