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* [PATCH] i386: Add machine_ops interface to abstract halting and rebootingJeremy Fitzhardinge2007-05-02
| | | | | | | | | | machine_ops is an interface for the machine_* functions defined in <linux/reboot.h>. This is intended to allow hypervisors to intercept the reboot process, but it could be used to implement other x86 subarchtecture reboots. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Add smp_ops interfaceJeremy Fitzhardinge2007-05-02
| | | | | | | | | | | | | | | | | Add a smp_ops interface. This abstracts the API defined by <linux/smp.h> for use within arch/i386. The primary intent is that it be used by a paravirtualizing hypervisor to implement SMP, but it could also be used by non-APIC-using sub-architectures. This is related to CONFIG_PARAVIRT, but is implemented unconditionally since it is simpler that way and not a highly performance-sensitive interface. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
* [PATCH] i386: cleanup GDT AccessRusty Russell2007-05-02
| | | | | | | | | | | | | Now we have an explicit per-cpu GDT variable, we don't need to keep the descriptors around to use them to find the GDT: expose cpu_gdt directly. We could go further and make load_gdt() pack the descriptor for us, or even assume it means "load the current cpu's GDT" which is what it always does. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] x86: remove UNEXPECTED_IO_APIC()Adrian Bunk2007-05-02
| | | | | | | | | Many years ago, UNEXPECTED_IO_APIC() contained printk()'s (but nothing more). Now that it's completely empty for years, we can as well remove it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: sys_ioperm() prototype cleanupAdrian Bunk2007-05-02
| | | | | | | | | | - there's no reason for duplicating the prototype from include/linux/syscalls.h in include/asm-x86_64/unistd.h - every file should #include the headers containing the prototypes for it's global functions Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: remove the APM_RTC_IS_GMT config option.Parag Warudkar2007-05-02
| | | | | | Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: get rid of unused variablesParag Warudkar2007-05-02
| | | | | | Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: tighten kernel image page access rightsJan Beulich2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | On x86-64, kernel memory freed after init can be entirely unmapped instead of just getting 'poisoned' by overwriting with a debug pattern. On i386 and x86-64 (under CONFIG_DEBUG_RODATA), kernel text and bug table can also be write-protected. Compared to the first version, this one prevents re-creating deleted mappings in the kernel image range on x86-64, if those got removed previously. This, together with the original changes, prevents temporarily having inconsistent mappings when cacheability attributes are being changed on such pages (e.g. from AGP code). While on i386 such duplicate mappings don't exist, the same change is done there, too, both for consistency and because checking pte_present() before using various other pte_XXX functions is a requirement anyway. At once, i386 code gets adjusted to use pte_huge() instead of open coding this. AK: split out cpa() changes Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: Improve handling of kernel mappings in change_page_attrJan Beulich2007-05-02
| | | | | | | | | Fix various broken corner cases in i386 and x86-64 change_page_attr. AK: split off from tighten kernel image access rights Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: rationalize paravirt wrappersRusty Russell2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | paravirt.c used to implement native versions of all low-level functions. Far cleaner is to have the native versions exposed in the headers and as inline native_XXX, and if !CONFIG_PARAVIRT, then simply #define XXX native_XXX. There are several nice side effects: 1) write_dt_entry() now takes the correct "struct Xgt_desc_struct *" not "void *". 2) load_TLS is reintroduced to the for loop, not manually unrolled with a #error in case the bounds ever change. 3) Macros become inlines, with type checking. 4) Access to the native versions is trivial for KVM, lguest, Xen and others who might want it. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@muc.de> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: Rename boot_gdt_table to boot_gdtSebastien Dugue2007-05-02
| | | | | | | | | | Rename boot_gdt_table to boot_gdt to avoid the duplicate T(able). Signed-off-by: Sebastien Dugue <sebastien.dugue@bull.net> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: clean up cpu_init()Rusty Russell2007-05-02
| | | | | | | | | | | We now have cpu_init() and secondary_cpu_init() doing nothing but calling _cpu_init() with the same arguments. Rename _cpu_init() to cpu_init() and use it as a replcement for secondary_cpu_init(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: Use per-cpu GDT immediately upon bootRusty Russell2007-05-02
| | | | | | | | | | | | | | | | | | Now we are no longer dynamically allocating the GDT, we don't need the "cpu_gdt_table" at all: we can switch straight from "boot_gdt_table" to the per-cpu GDT. This means initializing the cpu_gdt array in C. The boot CPU uses the per-cpu var directly, then in smp_prepare_cpus() it switches to the per-cpu copy just allocated. For secondary CPUs, the early_gdt_descr is set to point directly to their per-cpu copy. For UP the code is very simple: it keeps using the "per-cpu" GDT as per SMP, but we never have to move. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: Use per-cpu variables for GDT, PDARusty Russell2007-05-02
| | | | | | | | | | | | Allocating PDA and GDT at boot is a pain. Using simple per-cpu variables adds happiness (although we need the GDT page-aligned for Xen, which we do in a followup patch). [akpm@linux-foundation.org: build fix] Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] x86: add command line length to boot protocolBernhard Walle2007-05-02
| | | | | | | | | | | | | | | | | | | | | | Because the command line is increased to 2048 characters after 2.6.21, it's not possible for boot loaders and userspace tools to determine the length of the command line the kernel can understand. The benefit of knowing the length is that users can be warned if the command line size is too long which prevents surprise if things don't work after bootup. This patch updates the boot protocol to contain a field called "cmdline_size" that contain the length of the command line (excluding the terminating zero). The patch also adds missing fields (of protocol version 2.05) to the x86_64 setup code. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Alon Bar-Lev <alon.barlev@gmail.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: VDSO_PRELINK warning fixAndrew Morton2007-05-02
| | | | | | | | | | | | | | | | | | | | The lguest patches somehow managed to trigger this: In file included from arch/i386/lguest/lguest.c:38: include/asm/asm-offsets.h:67:1: warning: "VDSO_PRELINK" redefined In file included from include/linux/elf.h:7, from include/linux/module.h:15, from include/linux/device.h:21, from include/linux/interrupt.h:15, from arch/i386/lguest/lguest.c:27: include/asm/elf.h:140:1: warning: this is the location of the previous definition I assume that using the same identifier twice was a bad idea.. Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: remove constant_tsc reporting from /proc/cpuinfo' power flagsJoerg Roedel2007-05-02
| | | | | | | | | | remove the reporting of the constant_tsc flag from the "power management" field in /proc/cpuinfo. The NULL value there was replaced by "" because the former would result in a printout of [8] if the flag is set. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: fix GDT's number of quadwords in commentAhmed S. Darwish2007-05-02
| | | | | | | | | Fix comments to represent the true number of quadwords in GDT. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: vmi_pmd_clear() staticAdrian Bunk2007-05-02
| | | | | | | | | This patch makes the needlessly global vmi_pmd_clear() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] x86: Log reason why TSC was marked unstablejohn stultz2007-05-02
| | | | | | | | | | | | | | | | | Change mark_tsc_unstable() so it takes a string argument, which holds the reason the TSC was marked unstable. This is then displayed the first time mark_tsc_unstable is called. This should help us better debug why the TSC was marked unstable on certain systems and allow us to make sure we're not being overly paranoid when throwing out this troublesome clocksource. Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: workaround for a -Wmissing-prototypes warningAdrian Bunk2007-05-02
| | | | | | | | | | | | Work around a warning with -Wmissing-prototypes in arch/i386/kernel/asm-offsets.c The warning isn't gcc's fault - asm-offsets.c is simply a special file. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: type cast clean up for find_next_zero_bitKen Chen2007-05-02
| | | | | | | | clean up unneeded type cast by properly declare data type. Signed-off-by: Ken Chen <kenchen@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: make struct vmi_ops staticAdrian Bunk2007-05-02
| | | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: modpost apic related warning fixesVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | o Modpost generates warnings for i386 if compiled with CONFIG_RELOCATABLE=y WARNING: vmlinux - Section mismatch: reference to .init.text:find_unisys_acpi_oem_table from .text between 'acpi_madt_oem_check' (at offset 0xc0101eda) and 'enable_apic_mode' WARNING: vmlinux - Section mismatch: reference to .init.text:acpi_get_table_header_early from .text between 'acpi_madt_oem_check' (at offset 0xc0101ef0) and 'enable_apic_mode' WARNING: vmlinux - Section mismatch: reference to .init.text:parse_unisys_oem from .text between 'acpi_madt_oem_check' (at offset 0xc0101f2e) and 'enable_apic_mode' WARNING: vmlinux - Section mismatch: reference to .init.text:setup_unisys from .text between 'acpi_madt_oem_check' (at offset 0xc0101f37) and 'enable_apic_mode'WARNING: vmlinux - Section mismatch: reference to .init.text:parse_unisys_oem from .text between 'mps_oem_check' (at offset 0xc0101ec7) and 'acpi_madt_oem_check' WARNING: vmlinux - Section mismatch: reference to .init.text:es7000_sw_apic from .text between 'enable_apic_mode' (at offset 0xc0101f48) and 'check_apicid_present' o Some functions which are inline (acpi_madt_oem_check) are not inlined by compiler as these functions are accessed using function pointer. These functions are put in .text section and they in-turn access __init type functions hence modpost generates warnings. o Do not iniline acpi_madt_oem_check, instead make it __init. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] x86: __pa and __pa_symbol address space separationVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently __pa_symbol is for use with symbols in the kernel address map and __pa is for use with pointers into the physical memory map. But the code is implemented so you can usually interchange the two. __pa which is much more common can be implemented much more cheaply if it is it doesn't have to worry about any other kernel address spaces. This is especially true with a relocatable kernel as __pa_symbol needs to peform an extra variable read to resolve the address. There is a third macro that is added for the vsyscall data __pa_vsymbol for finding the physical addesses of vsyscall pages. Most of this patch is simply sorting through the references to __pa or __pa_symbol and using the proper one. A little of it is continuing to use a physical address when we have it instead of recalculating it several times. swapper_pgd is now NULL. leave_mm now uses init_mm.pgd and init_mm.pgd is initialized at boot (instead of compile time) to the physmem virtual mapping of init_level4_pgd. The physical address changed. Except for the for EMPTY_ZERO page all of the remaining references to __pa_symbol appear to be during kernel initialization. So this should reduce the cost of __pa in the common case, even on a relocated kernel. As this is technically a semantic change we need to be on the lookout for anything I missed. But it works for me (tm). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: Move swsusp __pa() dependent code to arch portionVivek Goyal2007-05-02
| | | | | | | | | | | | | | | | | o __pa() should be used only on kernel linearly mapped virtual addresses and not on kernel text and data addresses. o Hibernation code needs to determine the physical address associated with kernel symbol to mark a section boundary which contains pages which don't have to be saved and restored during hibernate/resume operation. o Move this piece of code in arch dependent section. So that architectures which don't have kernel text/data mapped into kernel linearly mapped region can come up with their own ways of determining physical addresses associated with a kernel text. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Simplify smp_call_function*() by using common implementationJeremy Fitzhardinge2007-05-02
| | | | | | | | | | | | | | | smp_call_function and smp_call_function_single are almost complete duplicates of the same logic. This patch combines them by implementing them in terms of the more general smp_call_function_mask(). Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Stephane Eranian <eranian@hpl.hp.com> Cc: Andrew Morton <akpm@osdl.org> Cc: Andi Kleen <ak@suse.de> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Ingo Molnar <mingo@elte.hu>
* [PATCH] i386: Fix usage of -mtune when X86_GENERIC=y or CONFIG_MCORE2=yLasse Collin2007-05-02
| | | | | | | | | | | | | Hi! I sent this simple patch to lkml about two weeks ago and also cc'ed to Linus, but seems that the patch got ignored. I decided to write to you, because you have modified the relevant file most recently. Below is a copy of the mail that is also available at <http://lkml.org/lkml/2007/2/28/230>. Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: clean up mach_reboot_fixupsJeremy Fitzhardinge2007-05-02
| | | | | | | | | | | The reboot_fixups stuff seems to be a bit of a mess, specifically the header is in linux/ when its a purely i386-specific piece of code. I'm not sure why it has its config option; its only currently needed for "geode-gx1/cs5530a", so perhaps whatever config option controls that hardware should enable this? Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: Drop cc-options call for all options supported in gcc 3.2+Andi Kleen2007-05-02
| | | | | | | | | | | | | | | | | | | | | | The kernel only supports gcc 3.2+ now so it doesn't make sense anymore to explicitely check for options this compiler version already has. This actually fixes a bug. The -mprefered-stack-boundary check never worked because gcc rightly complains CC arch/i386/kernel/asm-offsets.s cc1: -mpreferred-stack-boundary=2 is not between 4 and 12 We just never saw the error because of cc-options. I changed it to 4 to actually work. Tested by compiling i386 and x86-64 defconfig with gcc 3.2. Should speed up the build time a tiny bit and improve stack usage on i386 slightly. Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Support Oprofile for AMD Family 10 CPUsAndi Kleen2007-05-02
| | | | Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Change sysenter_setup to __cpuinit & improve __INIT, __INITDATAPrarit Bhargava2007-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change sysenter_setup to __cpuinit. Change __INIT & __INITDATA to be cpu hotplug aware. Resolve MODPOST warnings similar to: WARNING: vmlinux - Section mismatch: reference to .init.text:sysenter_setup from .text between 'identify_cpu' (at offset 0xc040a380) and 'detect_ht' and WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_int80_end from .text between 'sysenter_setup' (at offset 0xc041a269) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_int80_start from .text between 'sysenter_setup' (at offset 0xc041a26e) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_sysenter_end from .text between 'sysenter_setup' (at offset 0xc041a275) and 'enable_sep_cpu' WARNING: vmlinux - Section mismatch: reference to .init.data:vsyscall_sysenter_start from .text between 'sysenter_setup' (at offset 0xc041a27a) and 'enable_sep_cpu' Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Add __init to probe_bigsmpPrarit Bhargava2007-05-02
| | | | | | | | | | | | Add __init to probe_bigsmp. All callers are __init and data being examined is __initdata. Resolves MODPOST warning similar to: WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'probe_bigsmp' (at offset 0xc0401e56) and 'init_apic_ldr' Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: i386 make NMI use PERFCTR1 for architectural perfmon (take 2)Stephane Eranian2007-05-02
| | | | | | | | | | | | | | | | | | | | | | Hello, This patch against 2.6.20-git14 makes the NMI watchdog use PERFSEL1/PERFCTR1 instead of PERFSEL0/PERFCTR0 on processors supporting Intel architectural perfmon, such as Intel Core 2. Although all PMU events can work on both counters, the Precise Event-Based Sampling (PEBS) requires that the event be in PERFCTR0 to work correctly (see section 18.14.4.1 in the IA32 SDM Vol 3b). A similar patch for x86-64 is to follow. Changelog: - make the i386 NMI watchdog use PERFSEL1/PERFCTR1 instead of PERFSEL0/PERFCTR0 on processors supporting the Intel architectural perfmon (e.g. Core 2 Duo). This allows PEBS to work when the NMI watchdog is active. signed-off-by: stephane eranian <eranian@hpl.hp.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: Fix i386 and x86_64 fault information pollutionAndi Kleen2007-05-02
| | | | | | | | | | | | | | | | | | | a userspace fault or a kernelspace fault which will result in the immediate death of the process. They should not be filled in as a result of a kernelspace fault which can be fixed up. Otherwise, if the process is handling SIGSEGV and examining the fault information, this can result in the kernel space fault trashing the previously stored fault information if it arrives between the userspace fault happening and the SIGSEGV being delivered to the process. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Jan Beulich <jbeulich@novell.com> -- arch/i386/kernel/traps.c | 24 ++++++++++++++++++------ arch/x86_64/kernel/traps.c | 30 +++++++++++++++++++++++------- 2 files changed, 41 insertions(+), 13 deletions(-)
* [PATCH] i386: Add dwarf2 annotations to *_user and checksum functionsJan Beulich2007-05-02
| | | | Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: probe_roms() cleanupRene Herman2007-05-02
| | | | | | | | | | | | | | Remove the assumption that if the first page of a legacy ROM is mapped, it'll all be mapped. This'll also stop people reading this code from wondering if they're looking at a bug... Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Martin Murray <murrayma@citi.umich.edu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Zachary Amsden <zach@vmware.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: Add an option for the VIA C7 which sets appropriate L1 cacheSimon Arlott2007-05-02
| | | | | | | | | | | | | | The VIA C7 is a 686 (with TSC) that supports MMX, SSE and SSE2, it also has a cache line length of 64 according to http://www.digit-life.com/articles2/cpu/rmma-via-c7.html. This patch sets gcc to -march=686 and select s the correct cache shift. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: pit_latch_buggy has no effecttakada2007-05-02
| | | | | | | | | | | | | | Eliminated the arch/i386/kernel/timers in 2.6.18, use clocksoures instead. pit_latch_buggy was referred in timers/timer_tsc.c, and currently removed. Therefore nobody refer it. Until 2.6.17, MediaGX's TSC works correctly. after 2.6.18, warned "TSC appears to be running slowly. Marking it as unstable". So marked unstable TSC when CS55x0. Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: mtrr range check correctionJan Beulich2007-05-02
| | | | | | | | | | | | Whether a region is below 1Mb is determined by its start rather than its end. This hunk got erroneously dropped from a previous patch. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [PATCH] i386: No need to use -traditional for processing asm in i386/kernel/Jeremy Fitzhardinge2007-05-02
| | | | | | | No need to use -traditional for processing asm in i386/kernel/ Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: consolidate smp_send_stop()Jan Beulich2007-05-02
| | | | | | | | | | | | | | | Synchronize i386's smp_send_stop() with x86-64's in only try-locking the call lock to prevent deadlocks when called from panic(). In both version, disable interrupts before clearing the CPU off the online map to eliminate races with IRQ handlers inspecting this map. Also in both versions, save/restore interrupts rather than disabling/ enabling them. On x86-64, eliminate one function used here by folding it into its single caller, convert to static, and rename for consistency with i386 (lkcd may like this). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: adjustments to page table dump during oops (v4)Jan Beulich2007-05-02
| | | | | | | | | | | | | | | | | - make the page table contents printing PAE capable - make sure the address stored in current->thread.cr2 is unmodified from what was read from CR2 - don't call oops_may_print() multiple times, when one time suffices - print pte even in highpte case, as long as the pte page isn't in actually in high memory (which is specifically the case for all page tables covering kernel space) (Changes to v3: Use sizeof()*2 rather than the suggested sizeof()*4 for printing width, use fixed 16-nibble width for PAE, and also apply the max_low_pfn range check to the middle level lookup on PAE.) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] x86: default to physical mode on hotplug CPU kernelsIngo Molnar2007-05-02
| | | | | | | | | | | | | Default to physical mode on hotplug CPU kernels. Furher simplify and clean up the APIC initialization code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org>
* [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525Andrew Morton2007-05-02
| | | | | | | | | | | Obsoleted by Ingo's genapic stuff. Cc: Ingo Molnar <mingo@elte.hu> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: revert i386-fix-the-verify_quirk_intel_irqbalanceAndrew Morton2007-05-02
| | | | | | | | | | This is unneeded with Ingo's genapic rework. Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>
* [PATCH] i386: Update defconfigAndi Kleen2007-05-02
| | | | Signed-off-by: Andi Kleen <ak@suse.de>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2007-04-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (86 commits) SPIN_LOCK_UNLOCKED cleanup in drivers/ata/pata_winbond.c drivers/ata/pata_cmd640.c: fix build with CONFIG_PM=n pata_hpt37x: Further small fixes pata_hpt3x2n: Add HPT371N support and other bits ata: printk warning fixes libata: separate ATA_EHI_DID_RESET into DID_SOFTRESET and DID_HARDRESET ahci: consolidate common port flags ata_timing: ensure t->cycle is always correct libata: add missing call to ->cable_detect() in new EH path pata_amd: remove contamination added during cable_detect conversion libata: Handle drives that require a spin-up command before first access libata: HPA support libata: kill probe_ent and related helpers libata: convert the remaining PATA drivers to new init model libata: convert the remaining SATA drivers to new init model libata: convert ata_pci_init_native_mode() users to new init model libata: convert drivers with combined SATA/PATA ports to new init model libata: add init helpers including ata_pci_prepare_native_host() libata: convert native PCI host handling to new init model libata: convert legacy PCI host handling to new init model ...
| * libata/IDE: remove combined mode quirkJeff Garzik2007-04-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both old-IDE and libata should be able handle all controllers and devices found using normal resource reservation methods. This eliminates the awful, low-performing split-driver configuration where old-IDE drove the PATA portion of a PCI device, in PIO-only mode, and libata drove the SATA portion of the /same/ PCI device, in DMA mode. Typically vendors would ship SATA hard drive / PATA optical configuration, which would lend itself to slow (PIO-only) CD-ROM performance. For Intel users running in combined mode, it is now wholly dependent on your driver choice (potentially link order, if you compile both drivers in) whether old-IDE or libata will drive your hardware. In either case, you will get full performance from both SATA and PATA ports now, without having to pass a kernel command line parameter. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | ACPI: Remove a warning about unused variable in !CONFIG_ACPI compilation.Zachary Amsden2007-04-25
| | | | | | | | | | | | | | Signed-off-by: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-25 02:27:47 -0500