| 11a8e77 | Andi Kleen | 11 January 2006, 21:46:51 UTC | [PATCH] x86_64: Some housekeeping in local APIC code Remove support for obsolete hardware and cleanup. - Remove checks for non integrated APICs - Replace apic_write_around with apic_write. - Remove apic_read_around - Remove APIC version reads used by old workarounds - Remove old workaround for Simics - Fix indentation Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:03 UTC |
| 5f1d189 | Jan Beulich | 11 January 2006, 21:46:48 UTC | [PATCH] x86_64: Display meaningful part of filename during BUG() When building in a separate objtree, file names produced by BUG() & Co. can get fairly long; printing only the first 50 characters may thus result in (almost) no useful information. The following change makes it so that rather the last 50 characters of the filename get printed. Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:03 UTC |
| 1b2f630 | Jan Beulich | 11 January 2006, 21:46:45 UTC | [PATCH] x86_64: Reduce screen space needed by stack trace Especially under Xen, where the console cannot be adjusted to more than 25 lines, it is fairly important that the information displayed during a panic is as compact as possible. Below adjustments work towards that. Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:03 UTC |
| 5329e13 | Jan Beulich | 11 January 2006, 21:46:42 UTC | [PATCH] x86_64: Fix get_cmos_time() Due to a broken condition, the body of the loop that is intended to wait for the Update-In-Progress bit to get set and then cleared again was never entered; in fact, the entire loop was optimized out by the compiler. Here is a change to fix the condition (and to also move the initialization of locals out of the spin lock protected region). Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:03 UTC |
| bdf2b1c | Andi Kleen | 11 January 2006, 21:46:39 UTC | [PATCH] x86_64: No need to export get_cmos_time anymore It was only needed for APM Pointed out by Jan Beulich Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:02 UTC |
| dd52d64 | Andi Kleen | 11 January 2006, 21:46:36 UTC | [PATCH] x86_64: Remove unused AMD K8 C stepping flag X86_FEATURE_K8_C was a synthetic Linux CPUID flag that was used for some code optimizations in Opteron C stepping or later. But support for pre C stepping optimizations has been removed, so this isn't needed anymore. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:02 UTC |
| 2e664aa | Andi Kleen | 11 January 2006, 21:46:33 UTC | [PATCH] i386: Move phys_proc_id/early intel workaround to correct function. early_cpu_detect only runs on the BP, but this code needs to run on all CPUs. Looks like a mismerge somewhere. Also add a warning comment. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:02 UTC |
| 77a7533 | Stephen Hemminger | 11 January 2006, 21:46:30 UTC | [PATCH] x86_64: sparse warning cleanups Fix some trivial sparse warnings in x86_64 code. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:02 UTC |
| cf05013 | Andi Kleen | 11 January 2006, 21:46:27 UTC | [PATCH] x86_64: Move NUMA page_to_pfn/pfn_to_page functions out of line Saves about ~18K .text in defconfig There would be more optimization potential, but that's for later. Suggestion originally from Bill Irwin. Fix from Andy Whitcroft. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| cdc4b9c | Andi Kleen | 11 January 2006, 21:46:24 UTC | [PATCH] x86_64: Remove unused segments They used to be used by the reboot code, but not anymore. Noticed by Jan Beulich Cc: JBeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| af5b980 | Vivek Goyal | 11 January 2006, 21:46:21 UTC | [PATCH] x86_64: ioapic virtual wire mode fix o Currently, during kexec reboot, IOAPIC is re-programmed back to virtual wire mode if there was an i8259 connected to it. This enables getting timer interrupts in second kernel in legacy mode. o After putting into virtual wire mode, IOAPIC delivers the i8259 interrupts to CPU0. This works well for kexec but not for kdump as we might crash on a different CPU and second kernel will not see timer interrupts. o This patch modifies the redirection table entry to deliver the timer interrupts to the cpu we are rebooting (instead of hardcoding to zero). This ensures that second kernel receives timer interrupts even on a non-boot cpu. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| 79f1261 | Ravikiran G Thirumalai | 11 January 2006, 21:46:18 UTC | [PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_arch Introduce vSMP arch to the kernel. This patch: 1. Adds CONFIG_X86_VSMP 2. Adds machine specific macros for local_irq_disabled, local_irq_enabled and irqs_disabled 3. Writes to the vSMP CTL device to indicate kernel compiled with CONFIG_VSMP Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com> Signed-off-by: Shai Fultheim <shai@scalemp.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| 5fd63b3 | Ravikiran G Thirumalai | 11 January 2006, 21:46:15 UTC | [PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align vSMP specific alignment patch to 1. Define INTERNODE_CACHE_SHIFT for vSMP 2. Use this for alignment of critical structures 3. Use INTERNODE_CACHE_SHIFT for ARCH_MIN_TASKALIGN, and let the slab align task_struct allocations to the internode cacheline size 4. Introduce and use ARCH_MIN_MMSTRUCT_ALIGN for mm_struct slab allocations. Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com> Signed-off-by: Shai Fultheim <shai@scalemp.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| 99f7b77 | Andi Kleen | 11 January 2006, 21:46:12 UTC | [PATCH] x86_64: Make sure BITS_PER_ATOMIC is defined in asm-generic/atomic.h Fixes CC fs/nfsctl.o In file included from include2/asm/atomic.h:427, from /home/lsrc/quilt/linux/include/linux/file.h:8, from /home/lsrc/quilt/linux/fs/nfsctl.c:8: /home/lsrc/quilt/linux/include/asm-generic/atomic.h:20:5: warning: "BITS_PER_LONG" is not defined Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:01 UTC |
| e4b5939 | Brian Gerst | 11 January 2006, 21:46:09 UTC | [PATCH] x86_64: cleanup enter_lazy_tlb() Move the #ifdef into the function body. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| 1008fdd | Eric W. Biederman | 11 January 2006, 21:46:06 UTC | [PATCH] x86_64: Memorize location of i8259 for reboots. Currently we attempt to restore virtual wire mode on reboot, which only works if we can figure out where the i8259 is connected. This is very useful when we are kexec another kernel and likely helpful to an peculiar BIOS that make assumptions about how the system is setup. Since the acpi MADT table does not provide the location where the i8259 is connected we have to look at the hardware to figure it out. Most systems have the i8259 connected the local apic of the cpu so won't be affected but people running Opteron and some serverworks chipsets should be able to use kexec now. In addition this patch removes the hard coded assumption that the io_apic that delivers isa interrups is always known to the kernel as io_apic 0. There does not appear to be anything to guarantee that assumption is true. And From: Vivek Goyal <vgoyal@in.ibm.com> A minor fix to the patch which remembers the location of where i8259 is connected. Now counter i has been replaced by apic. counter i is having some junk value which was leading to non-detection of i8259 connected to IOAPIC. 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> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| 60923df | Chuck Ebbert | 11 January 2006, 21:46:03 UTC | [PATCH] x86_64: allow setting RF in EFLAGS Setting RF (resume flag) allows a debugger to resume execution after a code breakpoint without tripping the breakpoint again. It is reset by the CPU after executing one instruction. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| 100c0e3 | Chuck Ebbert | 11 January 2006, 21:46:00 UTC | [PATCH] x86_64: "invalid operand" -> "invalid opcode" The manual says Int 6 is "invalid opcode", not "invalid operand". Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| 6820940 | Luiz Fernando Capitulino | 11 January 2006, 21:45:57 UTC | [PATCH] x86_64: Sparse warnings fix. Fixes the following sparse warnings: arch/x86_64/kernel/mce_amd.c:321:29: warning: Using plain integer as NULL pointer arch/x86_64/kernel/mce_amd.c:410:41: warning: Using plain integer as NULL pointer Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| 915f34e | Andi Kleen | 11 January 2006, 21:45:54 UTC | [PATCH] x86_64: Remove useless KDB vector It was set as an NMI, but the NMI bit always forces an interrupt to end up at vector 2. So it was never used. Remove. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:05:00 UTC |
| e080e9d | Jason Uhlenkott | 11 January 2006, 21:45:51 UTC | [PATCH] x86_64: Don't claim too many vectors for TLB flushing It looks like the new scalable TLB flush code for x86_64 is claiming one more IRQ vector than it actually uses. Signed-off-by: Jason Uhlenkott <jasonuhl@sgi.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| 5b22a38 | Andi Kleen | 11 January 2006, 21:45:48 UTC | [PATCH] x86_64: Tell user to enable GART_IOMMU when needed Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| 7554c3f | Andi Kleen | 11 January 2006, 21:45:45 UTC | [PATCH] x86_64: Fix warning in nmi.c on uniprocessor kernels Fix CC arch/x86_64/kernel/nmi.o linux/arch/x86_64/kernel/nmi.c: In function ???check_nmi_watchdog???: linux/arch/x86_64/kernel/nmi.c:155: warning: statement with no effect on Uniprocessor builds. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| 365ba91 | Ravikiran G Thirumalai | 11 January 2006, 21:45:42 UTC | [PATCH] x86_64: Allocate PDAs in the local node Patch uses a static PDA array early at boot and reallocates processor PDA with node local memory when kmalloc is ready, just before pda_init. The boot_cpu_pda is needed since the cpu_pda is used even before pda_init for that cpu is called (to set the static per-cpu areas offset table etc) Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| df79efd | Ravikiran G Thirumalai | 11 January 2006, 21:45:39 UTC | [PATCH] x86_64: Node local pda take 2 -- cpu_pda preparation Helper patch to change cpu_pda users to use macros to access cpu_pda instead of the cpu_pda[] array. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| 05b3cbd | Ravikiran Thirumalai | 11 January 2006, 21:45:36 UTC | [PATCH] x86_64: Early initialization of cpu_to_node Patch enables early intialization of cpu_to_node. apicid_to_node is built by reading the SRAT table, from acpi_numa_init with ACPI_NUMA and k8_scan_nodes with K8_NUMA. x86_cpu_to_apicid is built by parsing the ACPI MADT table, from acpi_boot_init. We combine these two tables and setup cpu_to_node. Early intialization helps the static per_cpu_areas in getting pages from correct node. Change since last release: Do not initialize early init_cpu_to_node for faking node cases. Patch tested on TYAN dual core 4P board with K8 only, ACPI_NUMA. Tested on EM64T NUMA. Also tested with numa=off, numa=fake, and running a kernel compiled with NUMA on a regular EM64 2 way SMP. Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:59 UTC |
| 0b91317 | Andi Kleen | 11 January 2006, 21:45:33 UTC | [PATCH] x86_64: Fix up white space in time.c No functional changes. And remove one redundant prototype. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:58 UTC |
| 2c8bc94 | Andi Kleen | 11 January 2006, 21:45:30 UTC | [PATCH] x86_64: Use standard __always_inline in vsyscall.c Replacing the old home brewn __force_inline. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:58 UTC |
| 487472b | Andi Kleen | 11 January 2006, 21:45:27 UTC | [PATCH] i386: Replace broken serialize_cpu in microcode driver with correct sync_core Passing random input values in eax to cpuid is not a good idea because the CPU will GPF for unknown ones. Use the correct x86-64 version that exists for a longer time too. This also adds a memory barrier to prevent the optimizer from reordering. Cc: tigran@veritas.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:58 UTC |
| c818a18 | Andi Kleen | 11 January 2006, 21:45:24 UTC | [PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSC RDTSC serialization using cpuid is not needed for Intel platforms. This increases gettimeofday performance. Cc: vojtech@suse.cz Cc: rohit.seth@intel.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:58 UTC |
| 7f6c5b0 | Andi Kleen | 11 January 2006, 21:45:21 UTC | [PATCH] x86_64: Support alternative() in vsyscalls The real vsyscall .text addresses are not mapped when the alternative() replacement runs early, so use some black magic to access them using the direct mapping. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:58 UTC |
| 6e54d95 | Andi Kleen | 11 January 2006, 21:45:18 UTC | [PATCH] x86_64: Support alternative() with a output argument. Needed for follow on patches Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:57 UTC |
| 737c5c3 | Andi Kleen | 11 January 2006, 21:45:15 UTC | [PATCH] x86_64: Don't try to synchronize the TSC over CPUs on Intel CPUs at boot. They already do this in hardware and the Linux algorithm actually adds errors. Cc: mingo@elte.hu Cc: rohit.seth@intel.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:57 UTC |
| 3c02175 | Andi Kleen | 11 January 2006, 21:45:12 UTC | [PATCH] x86_64: Fix compile error with !CONFIG_COMPAT cpumask.h wasn't included implicitely into proto.h in this case. Just move it over to smp.h Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:57 UTC |
| b9d1e4b | Vivek Goyal | 11 January 2006, 21:45:09 UTC | [PATCH] x86_64: x86_64 write apic id fix o Apic id is in most significant 8 bits of APIC_ID register. Current code is trying to write apic id to least significant 8 bits. This patch fixes it. o This fix enables booting uni kdump capture kernel on a cpu with non-zero apic id. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:57 UTC |
| aea9fca | Brian Gerst | 11 January 2006, 21:45:06 UTC | [PATCH] x86_64: Remove duplicate exports Remove exports that are already exported from the object's source file. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| e360282 | Brian Gerst | 11 January 2006, 21:45:03 UTC | [PATCH] x86_64: unexport pci_*_consistent These functions are inlines and shouldn't be exported. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| 2d0db40 | Andi Kleen | 11 January 2006, 21:45:00 UTC | [PATCH] x86_64: Remove unused apic_write_atomic This function is never used for x86_64. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| 4cef0c6 | Andi Kleen | 11 January 2006, 21:44:57 UTC | [PATCH] x86_64: Make the cpu_*_maps in kernel/sched.c read mostly They are referred to often so avoid potential false sharing for them. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| fd78f11 | Andi Kleen | 11 January 2006, 21:44:54 UTC | [PATCH] i386: make pci_map_single/pci_map_sg warn for zero length. As suggested by Linus. This catches driver bugs that could cause corruption on IOMMU architectures. Also I converted the BUGs to out_of_line_bug()s to save a bit of text space. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| 3d831d9 | Andi Kleen | 11 January 2006, 21:44:51 UTC | [PATCH] x86_64: Enable sound in old style OSS driver for NForce4 CK804 Just add the missing PCI ID. Cc: perex@suse.cz Cc: tiwai@suse.de Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:56 UTC |
| 4855170 | Andi Kleen | 11 January 2006, 21:44:48 UTC | [PATCH] x86_64: Make it clear in machine checks that it's an hardware problem Hopefully the users will take the hint. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| 2cbc9ee | Andi Kleen | 11 January 2006, 21:44:45 UTC | [PATCH] x86_64: Clean up copy_*_user - Remove optimization for old B stepping Opteron - Make the fast path for copies with a multiple of eight length faster. - Minor instruction rearrangement to hopefully avoid a pipeline stall or two. - Add comment about errata to consider. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| 17a941d | Muli Ben-Yehuda | 11 January 2006, 21:44:42 UTC | [PATCH] x86_64: Use function pointers to call DMA mapping functions AK: I hacked Muli's original patch a lot and there were a lot of changes - all bugs are probably to blame on me now. There were also some changes in the fall back behaviour for swiotlb - in particular it doesn't try to use GFP_DMA now anymore. Also all DMA mapping operations use the same core dma_alloc_coherent code with proper fallbacks now. And various other changes and cleanups. Known problems: iommu=force swiotlb=force together breaks needs more testing. This patch cleans up x86_64's DMA mapping dispatching code. Right now we have three possible IOMMU types: AGP GART, swiotlb and nommu, and in the future we will also have Xen's x86_64 swiotlb and other HW IOMMUs for x86_64. In order to support all of them cleanly, this patch: - introduces a struct dma_mapping_ops with function pointers for each of the DMA mapping operations of gart (AMD HW IOMMU), swiotlb (software IOMMU) and nommu (no IOMMU). - gets rid of: if (swiotlb) return swiotlb_xxx(); - PCI_DMA_BUS_IS_PHYS is now checked against the dma_ops being set This makes swiotlb faster by avoiding double copying in some cases. Signed-Off-By: Muli Ben-Yehuda <mulix@mulix.org> Signed-Off-By: Jon D. Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| 8a6fdd3 | Andi Kleen | 11 January 2006, 21:44:39 UTC | [PATCH] x86_64: Reject SRAT tables that don't cover all memory Broken BIOS on Iwill 8way systems reports these and it causes the bootmem allocator to crash. Add a sanity check if all the PXMs in the SRAT table cover all memory as reported by e820. If the sanity check fails the SRAT is rejected and the code will fall back to discover the NUMA topology using the K8 northbridge registers when applicable. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| 95833c8 | Andi Kleen | 11 January 2006, 21:44:36 UTC | [PATCH] x86_64: Add idle notifiers This adds a new notifier chain that is called with IDLE_START when a CPU goes idle and IDLE_END when it goes out of idle. The context can be idle thread or interrupt context. Since we cannot rely on MONITOR/MWAIT existing the idle end check currently has to be done in all interrupt handlers. They were originally inspired by the similar s390 implementation. They have a variety of applications: - They will be needed for CONFIG_NO_IDLE_HZ - They can be used for oprofile to fix up the missing time in idle when performance counters don't tick. - They can be used for better C state management in ACPI - They could be used for microstate accounting. This is just infrastructure so far, no users. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| 6b050f8 | Andi Kleen | 11 January 2006, 21:44:33 UTC | [PATCH] x86_64: Clean up some printks in NUMA code Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:55 UTC |
| d18ff47 | Andi Kleen | 11 January 2006, 21:44:30 UTC | [PATCH] x86_64: Fix up coding style in numa.c No functional changes Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| ca8642f | Andi Kleen | 11 January 2006, 21:44:27 UTC | [PATCH] x86_64: Fix off by one in IOMMU check Fix off by one when checking if the machine has enougn memory to need IOMMU This caused the IOMMUs to be needlessly enabled for mem=4G Based on a patch from Jon Mason Signed-off-by: jdmason@us.ibm.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| d25bf7e | Venkatesh Pallipadi | 11 January 2006, 21:44:24 UTC | [PATCH] x86_64: Handle missing local APIC timer interrupts on C3 state Whenever we see that a CPU is capable of C3 (during ACPI cstate init), we disable local APIC timer and switch to using a broadcast from external timer interrupt (IRQ 0). Patch below adds the code for x86_64. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| 6eb0a0f | Venkatesh Pallipadi | 11 January 2006, 21:44:21 UTC | [PATCH] i386: Handle missing local APIC timer interrupts on C3 state Whenever we see that a CPU is capable of C3 (during ACPI cstate init), we disable local APIC timer and switch to using a broadcast from external timer interrupt (IRQ 0). This is needed because Intel CPUs stop the local APIC timer in C3. This is currently only enabled for Intel CPUs. Patch below adds the code for i386 and also the ACPI hunk. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| 5a07a30 | Venkatesh Pallipadi | 11 January 2006, 21:44:18 UTC | [PATCH] i386/x86-64: Remove sub jiffy profile timer support Remove the finer control of local APIC timer. We cannot provide a sub-jiffy control like this when we use broadcast from external timer in place of local APIC. Instead of removing this only on systems that may end up using broadcast from external timer (due to C3), I am going the "I'm feeling lucky" way to remove this fully. Basically, I am not sure about usefulness of this code today. Few other architectures also don't seem to support this today. If you are using profiling and fine grained control and don't like this going away in normal case, yell at me right now. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| 01b8faa | John Blackwood | 11 January 2006, 21:44:15 UTC | [PATCH] x86_64: Report hardware breakpoints in user space when triggered by the kernel I would like to throw out a suggestion for a possible change in the way that the debug register traps are handled in do_debug() when the trap occurs in kernel-mode. In the x86_64 version of do_debug(), the code will skip around sending a SIGTRAP to the current task if the trap occurred while in kernel mode. On the i386-side of things, if the access happens to occur in kernel mode (say during a read(2) of user's buffer that matches the address of a debug register trap), then the do_debug() routine for i386 will go ahead and call send_sigtrap() and send the SIGTRAP signal. The send_sigtrap() code will also set the info.si_addr to NULL in this case (even though I don't understand why, since the SIGTRAP siginfo processing doesn't use the si_addr field...). So I would like to suggest that the x86_64 do_debug() routine also follow this type of behavior and have it go ahead and send the SIGTRAP signal to the current task, even if the debug register trap happens to have occurred in kernel mode. I have taken a stab at a patch for this change below. (It includes the i386-ish change for setting si_addr to NULL when the trap occurred in kernel mode.) It seems like a useful feature to be able to 'watch' a user location that might also be modified in the kernel via a system service call, and have the debugger report that information back to the user, rather than to just silently ignore the trap. Additionally, I realize that users that pull in a kernel debugger such as KGDB into their kernel might want to remove this change below when they add in KGDB support. However, they could alternatively look at the current task's thread.debugreg[] values to see if the trap occurred due to KGDB or instead because of a user-space debugger trap, and still honor the user SIGTRAP processing (instead of the KGDB breakpoint processing) if the trap matches up with the thread.debugreg[] registers. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:54 UTC |
| 4839057 | Adrian Bunk | 11 January 2006, 21:44:12 UTC | [PATCH] x86_64: "extern inline" -> "static inline" in pgtable.h Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| 66c5815 | Andi Kleen | 11 January 2006, 21:44:09 UTC | [PATCH] x86_64: Convert page fault error codes to symbolic constants. Much better to deal with these than with the magic numbers. And remove the comment describing the bits - kernel source is no replacement for an architecture manual. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| bf2fcc6 | Andi Kleen | 11 January 2006, 21:44:06 UTC | [PATCH] x86_64: Implement is_compat_task the right way By setting a flag during a 32bit system call only Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| 2966387 | Andi Kleen | 11 January 2006, 21:44:03 UTC | [PATCH] x86_64: Implement compat code for sg driver SG_GET_REQUEST_TABLE ioctl Apparently helps with some non SANE scanner drivers. Cc: axboe@suse.de Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| f95190b | Andi Kleen | 11 January 2006, 21:44:00 UTC | [PATCH] x86_64: Remove unnecessary case from the page fault handler Don't need to do the vmalloc check for the module range because its PML4 is shared with the kernel text. Also removed an unnecessary TLB flush. Pointed out by Jan Beulich Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| c11efdf | Ravikiran G Thirumalai | 11 January 2006, 21:43:57 UTC | [PATCH] x86_64: Align and pad x86_64 GDT on page boundary This patch is on the same lines as Zachary Amsden's i386 GDT page alignemnt patch in -mm, but for x86_64. Patch to align and pad x86_64 GDT on page boundries. [AK: some minor cleanups and fixed incorrect TLS initialization in CPU init.] Signed-off-by: Nippun Goel <nippung@calsoftinc.com> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:53 UTC |
| bb33421 | Andi Kleen | 11 January 2006, 21:43:54 UTC | [PATCH] x86_64: Allow compilation on a 32bit biarch toolchain This might help on distributions that use a 32bit biarch compiler. First pass -m64 by default. Secondly add some more .code32s because at least the Ubuntu biarch 32bit as called by gcc doesn't seem to handle -m64 -m32 as generated by the Makefile without such assistance. And finally make sure the linker script can be preprocessed with a 32bit cpp. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:52 UTC |
| 79c62cf | Ross Biro | 11 January 2006, 21:43:51 UTC | [PATCH] x86_64: Make udelay more accurate The attempt to avoid overflow in __delay caused varying precision on different CPUs depending on differences in the CPU speed. We should be able to do this multiplication with out overflowing provided the cpu is running at less than about 128 GHz. xloops < 20000 * 0x10c6. loops_per_jiffy * HZ <= cpu_clock_speed. So if the cpu clock speed < 2^64/(20000 * 0x10c6) = 2^64/ 51E6CC0 < 2^64/2^27 = 2^37 = 128G we will not overflow the calculation. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:52 UTC |
| e4e9407 | Andi Kleen | 11 January 2006, 21:43:48 UTC | [PATCH] x86_64: Return -1 for unknown PCI bus affinity When we don't know the node a PCI bus is connected to return -1. This matches the generic code. Noticed by Ravikiran G Thirumalai <kiran@scalex86.org> Cc: Ravikiran G Thirumalai <kiran@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:52 UTC |
| 819a692 | Andi Kleen | 11 January 2006, 21:43:45 UTC | [PATCH] x86_64: Handle unknown node (-1) in alloc_pages_node Following kmalloc_node. Needed for another patch to return -1 for unknown nodes in x86-64. Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: kiran@scalex86.org Signed-off-by: Andi Kleen <ak@suse.de> [ Changed 0 to numa_node_id() on suggestion by Christoph Lameter ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| 1584b89 | Andi Kleen | 11 January 2006, 21:43:42 UTC | [PATCH] x86_64: Validate SLIT table A lot of Opteron BIOS just pass 10 in all SLIT entries (10 is the normalized unit). This is actually worse than the default heuristic because it leads to pci_distance not knowing the difference between local and remote nodes anymore. This messes up some NUMA heuristics in generic code. In this case it's better to fall back to the default heuristic which just does nodea == nodeb ? 10 : 20. This patch does some basic sanity checking on the SLIT and only accepts the SLIT when it passes. Invariants enforced are: - Node to itself shall be 10 - Any other distance shouldn't be 10 - Distances smaller than 10 are illegal Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| 7a4a76c | Andi Kleen | 11 January 2006, 21:43:39 UTC | [PATCH] x86_64: Fix off by one in acpi table mapping And fix the test to include the size Noticed by Vivek Goyal Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| 7180d4f | Jan Beulich | 11 January 2006, 21:43:36 UTC | [PATCH] x86_64: Fix 64bit FXSAVE encoding The separation of the rex64 prefix (on fxsave/fxrstor) by way of using a semicolon resulted in the prefix not always taking effect (because when extended registers are needed for addressing, another rex prefix would have been generated by the compiler), thus (depending on the build) resulting in eventually getting 32-bit saves and/or restores. Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| e992867 | Andi Kleen | 11 January 2006, 21:43:33 UTC | [PATCH] x86_64: Generalize DMI and enable for x86-64 Some people need it now on 64bit so reuse the i386 code for x86-64. This will be also useful for future bug workarounds. It is a bit simplified there because there is no need to do it very early on x86-64. This means it doesn't need early ioremap et.al. We run it as a core initcall right now. I hope it's not needed for early setup. I added a general CONFIG_DMI symbol in case IA64 or someone else wants to reuse the code later too. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| b347d25 | Andi Kleen | 11 January 2006, 21:43:30 UTC | [PATCH] x86_64: Remove bogus file in arch/x86_64/pci This was a backup file that somehow made it into the official tree. Never used for anything. Remove. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| f46ace6 | Andi Kleen | 11 January 2006, 21:43:27 UTC | [PATCH] x86_64: Add missing newline in IOMMU error message Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:51 UTC |
| 636dd2b | Stephen Hemminger | 11 January 2006, 21:43:24 UTC | [PATCH] x86_64: fls in asm for x86_64 Use single instruction for find largest set bit on x86_64. [Updated by Jan Beulich to fix wrong asm constraints in original patch -AK] Cc: jbeulich@novell.com Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:50 UTC |
| bd9cb64 | Jan Beulich | 11 January 2006, 21:43:21 UTC | [PATCH] x86_64: fix page fault from show_trace() The introduction of call_softirq switching to the interrupt stack several releases earlier resulted in a problem with the code in show_trace, which assumes that it can pick the previous stack pointer from the end of the interrupt stack. Cc: Andi Kleen <ak@muc.de> Cc: Arjan van de Ven <arjanv@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:50 UTC |
| 4724e3e | Peter Beutner | 11 January 2006, 21:43:18 UTC | [PATCH] x86_64: fix single step handling for 32bit processes Be more careful with TF handling to fix some copy protection codes in wine patch originally for i386 by Linus, then ported to x86_64 by Andi Kleen see: [PATCH] x86_64: Some fixes for single step handling commit: be61bff789fe44bfb6d9282d8f7eccc860bdcfb6 But it was never applied to the ia32 emulation code which breaks some copy-protection schemes under wine when running on x86_64. Signed-off-by: Peter Beutner <p.beutner@gmx.net> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:50 UTC |
| 60917a3 | Benjamin LaHaise | 11 January 2006, 21:43:15 UTC | [PATCH] x86_64: don't save eflags in x86-64 switch_to() As discussed, the flags register on x86-64 is saved and restored by the assembly code which sets up struct pt_regs, so we do not need to save and restore it in the inline assembler which already informs gcc that we're clobbering the flags. This patch has been sanity booted and works okay here. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:50 UTC |
| 6e3fbee | Eric W. Biederman | 11 January 2006, 21:43:12 UTC | [PATCH] i386/x86-64: Don't IPI to offline cpus on shutdown So why are we calling smp_send_stop from machine_halt? We don't. Looking more closely at the bug report the problem here is that halt -p is called which triggers not a halt but an attempt to power off. machine_power_off calls machine_shutdown which calls smp_send_stop. If pm_power_off is set we should never make it out machine_power_off to the call of do_exit. So pm_power_off must not be set in this case. When pm_power_off is not set we expect machine_power_off to devolve into machine_halt. So how do we fix this? Playing too much with smp_send_stop is dangerous because it must also be safe to be called from panic. It looks like the obviously correct fix is to only call machine_shutdown when pm_power_off is defined. Doing that will make Andi's assumption about not scheduling true and generally simplify what must be supported. This turns machine_power_off into a noop like machine_halt when pm_power_off is not defined. If the expected behavior is that sys_reboot(LINUX_REBOOT_CMD_POWER_OFF) becomes sys_reboot(LINUX_REBOOT_CMD_HALT) if pm_power_off is NULL this is not quite a comprehensive fix as we pass a different parameter to the reboot notifier and we set system_state to a different value before calling device_shutdown(). Unfortunately any fix more comprehensive I can think of is not obviously correct. The core problem is that there is no architecture independent way to detect if machine_power will become a noop, without calling it. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:04:50 UTC |
| 329d400 | Zwane Mwaikambo | 11 January 2006, 21:43:09 UTC | [PATCH] x86_64/i386: Remove preempt disable calls in lowlevel IPI I noticed that some lowlevel send_IPI_mask helpers had a hotplug/preempt race whereupon the cpu_online_map was read before disabling preemption; ... cpumask_t mask = cpu_online_map; int cpu = get_cpu(); cpu_clear(cpu, mask); ... But then i realised that there is no need for these lowlevel functions to be going through all this trouble when all the callers are already made hotplug/preempt safe. Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:57 UTC |
| 73ca535 | Shaohua Li | 11 January 2006, 21:43:06 UTC | [PATCH] x86_64: increase MCE bank counts There is one CPU here whose MCE bank count is 6. This patch increases x86_64's MCE bank count. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:57 UTC |
| f2ecfab | Benjamin LaHaise | 11 January 2006, 21:43:03 UTC | [PATCH] x86_64: another mb() for smpboot.c The following is probably a good idea given that the atomic_set() isn't a barrier here either. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:56 UTC |
| b556b35 | Jan Beulich | 11 January 2006, 21:43:00 UTC | [PATCH] x86_64: Move int 3 handler to debug stack and allow to increase it. This - switches the INT3 handler to run on an IST stack (to cope with breakpoints set by a kernel debugger on places where the kernel's %gs base hasn't been set up, yet); the IST stack used is shared with the INT1 handler's [AK: this also allows setting a kprobe on the interrupt/exception entry points] - allows nesting of INT1/INT3 handlers so that one can, with a kernel debugger, debug (at least) the user-mode portions of the INT1/INT3 handling; the nesting isn't actively enabled here since a kernel- debugger-free kernel doesn't need it Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:13 UTC |
| ed8388a | Andi Kleen | 11 January 2006, 21:42:57 UTC | [PATCH] x86_64: Don't confuse apic=... command line option with apic Previously apic was foced with apic=logopt was specified. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:13 UTC |
| 7c0ac55 | Andi Kleen | 11 January 2006, 21:42:54 UTC | [PATCH] x86_64: Dont't disable early PCI scan with apic It might be still needed for non APIC related issues. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:12 UTC |
| 3f98bc4 | Andi Kleen | 11 January 2006, 21:42:51 UTC | [PATCH] i386/x86-64: Update AMD CPUID flags Print bits for RDTSCP, SVM, CR8-LEGACY. Also now print power flags on i386 like x86-64 always did. This will add a new line in the 386 cpuinfo, but that shouldn't be an issue - did that in the past too and I haven't heard of any breakage. I shrunk some of the fields in the i386 cpuinfo_x86 to chars to make up for the new int "x86_power" field. Overall it's smaller than before. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:12 UTC |
| 152bf8c | Andi Kleen | 11 January 2006, 21:42:48 UTC | [PATCH] x86_64: Use X86_FEATURE_CONSTANT_TSC now to clean up Intel speedstep drivers They previously tried to figure this out on their own. Suggested by Venkatesh. Cc: venkatesh.pallipadi@intel.com Cc: davej@redhat.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:12 UTC |
| 39b3a79 | Andi Kleen | 11 January 2006, 21:42:45 UTC | [PATCH] i386/x86-64: Generalize X86_FEATURE_CONSTANT_TSC flag Define it for i386 too. This is a synthetic flag that signifies that the CPU's TSC runs at a constant P state invariant frequency. Fix up the logic on x86-64/i386 to set it on all known CPUs. Use the AMD defined bit to set it on future AMD CPUs. Cc: venkatesh.pallipadi@intel.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:12 UTC |
| 2d52ede | Andi Kleen | 11 January 2006, 21:42:42 UTC | [PATCH] x86_64: Remove enable/disable_hlt Was only used by the floppy driver to work around some ancient hardware bug that should never occur on any 64bit system. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:12 UTC |
| 7eb903f | Andi Kleen | 11 January 2006, 21:42:39 UTC | [PATCH] x86_64: Add documentation for CPU hotplug ACPI extension Cc: len.brown@intel.com, ashok.ray@intel.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| f62a91f | Andi Kleen | 11 January 2006, 21:42:35 UTC | [PATCH] x86_64: Don't reserve hotplug CPUs by default Most users don't need it so no need to waste memory. This means an user has to specify the appropiate number of hotplug CPUs on the command line with additional_cpus=... or fix their BIOS to follow the convention in Documentation/x86-64/cpu-hotplug-spec Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| 92934bc | Andi Kleen | 11 January 2006, 21:42:32 UTC | [PATCH] i386/x86-64: Use input/output dependencies for bitops Noticed by Andreas Schwab Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| 636aab5 | Andi Kleen | 11 January 2006, 21:42:29 UTC | [PATCH] x86_64: No need to remove NT during CPU setup head.S already clears EFLAGS completely. Following an i386 patch from Zachary Amsden. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| 1f6818b | Andi Kleen | 11 January 2006, 21:42:26 UTC | [PATCH] x86_64: Minor GFP_DMA32 comment fix Pretty obvious Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| 8b1bde9 | Jan Beulich | 11 January 2006, 21:42:23 UTC | [PATCH] x86_64: Adjust page fault handling Adjust page fault protection error check before considering it to be a vmalloc synchronization candidate. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:11 UTC |
| 505cc4e | Jan Beulich | 11 January 2006, 21:42:20 UTC | [PATCH] x86_64: Remove unprotected iret Make sure no iret can fault without attached recovery code. Cannot happen in the normal case, but might be useful with kernel debuggers Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| eca37c1 | Jan Beulich | 11 January 2006, 21:42:17 UTC | [PATCH] x86_64: Clean up double fault handling Since a double fault always implies that kernel data structures are corrupt, this fault should neither be handed to user mode handling, nor should the handler allow resuming the faulting code stream (since architecturally this isn't a fault, but an abort). Note that this slightly depends on the previously submitted patch adjusting the prototype of notify_die() (a compiler warning will result without that other patch). AK: Removed obsolete CONFIG_CHECKING code, added comments Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| 6e3f361 | Jan Beulich | 11 January 2006, 21:42:14 UTC | [PATCH] x86_64: make trap information available to die notification handlers This adjusts things so that handlers of the die() notifier will have sufficient information about the trap currently being handled. It also adjusts the notify_die() prototype to (again) match that of i386. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| 5c617cf | Jan Beulich | 11 January 2006, 21:42:11 UTC | [PATCH] x86_64: Removing unused function die_if_kernel(). Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| 0a52158 | Jan Beulich | 11 January 2006, 21:42:08 UTC | [PATCH] x86_64: fix bound check IDT gate Other than apparently commonly assumed, the bound instruction does not require the corresponding IDT entry to have DPL 3. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| 6e0c47e | Jan Beulich | 11 January 2006, 21:42:05 UTC | [PATCH] x86_64: Separate CONFIG_UNWIND_INFO from CONFIG_DEBUG_INFO As a follow-up to the introduction of CONFIG_UNWIND_INFO, this separates the generation of frame unwind information for x86-64 from that of full debug information. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:10 UTC |
| 130951c | Andi Kleen | 11 January 2006, 21:42:02 UTC | [PATCH] x86_64: Support constant TSC feature in future AMD CPUs. Based on the documentation recently posted by Richard Brunner. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:09 UTC |
| 2765130 | Jan Beulich | 11 January 2006, 21:41:59 UTC | [PATCH] x86_64: More CFI fixes for 32bit entry code Frame unwind information was still incorrect for ia32_ptregs_common (sorry, my fault), and could be improved for some of the other entry points. Signed-Off-By: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:09 UTC |
| 6076399 | Andi Kleen | 11 January 2006, 21:41:56 UTC | [PATCH] x86_64: Update defconfig Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 03:01:09 UTC |
| 8d8706e | Andrew Morton | 11 January 2006, 20:17:49 UTC | [PATCH] lindent rio drivers Run all rio files through indent -kr -i8 -bri0 -l255, as requested by Alan. rioboot.c and rioinit.c were skipped due to worrisome lindent warnings. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> | 12 January 2006, 02:42:14 UTC |
