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2006-01-11[PATCH] x86_64: Don't confuse noapic with noapictimerAndi Kleen1-1/+3
Handling common prefixes is tricky. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: don't copy command line twiceJan Beulich1-4/+0
... reducing the amount of changes Xen has to do. Signed-Off-By: Jan Beulich <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] i386/x86-64: make setup_early_printk() usage consistentJan Beulich3-5/+3
The explicit and implicit calls to setup_early_printk() were passing inconsistent arguments. Signed-Off-By: Jan Beulich <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] i386: Move DOUBLEFAULT config to arch/i386/KconfigAndi Kleen2-9/+9
It has no business being elsewhere and x86-64 doesn't need/want it. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Allow kernel page tables upto the end of memoryAndi Kleen1-2/+14
Previously they would be only allocated before the kernel text at 1MB. This limited the maximum supported memory to 128GB. Now allow the e820 allocator to put them everywhere. Try to put them beyond any DMA zones to avoid filling them up. This should free some GFP_DMA memory compared to earlier kernels. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Use safe_smp_processor_id in MCE handlerAndi Kleen1-1/+2
hard_smp_processor_id would return the local APIC id instead of the Linux processor id. On big systems they are often not identical. safe_smp_processor_id is just a wrapper around it that does the necessary conversions. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Some housekeeping in local APIC codeAndi Kleen5-69/+49
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Display meaningful part of filename during BUG()Jan Beulich3-7/+18
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Reduce screen space needed by stack traceJan Beulich1-13/+12
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Fix get_cmos_time()Jan Beulich1-7/+4
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: No need to export get_cmos_time anymoreAndi Kleen2-4/+1
It was only needed for APM Pointed out by Jan Beulich Cc: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Remove unused AMD K8 C stepping flagAndi Kleen2-7/+1
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] i386: Move phys_proc_id/early intel workaround to correct function.Andi Kleen1-7/+10
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: sparse warning cleanupsStephen Hemminger2-3/+3
Fix some trivial sparse warnings in x86_64 code. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Move NUMA page_to_pfn/pfn_to_page functions out of lineAndi Kleen2-13/+39
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Remove unused segmentsAndi Kleen2-6/+3
They used to be used by the reboot code, but not anymore. Noticed by Jan Beulich Cc: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: ioapic virtual wire mode fixVivek Goyal1-1/+2
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_archRavikiran G Thirumalai5-0/+85
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 <[email protected]> Signed-off-by: Shai Fultheim <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_alignRavikiran G Thirumalai3-1/+23
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 <[email protected]> Signed-off-by: Shai Fultheim <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Make sure BITS_PER_ATOMIC is defined in asm-generic/atomic.hAndi Kleen1-0/+1
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: cleanup enter_lazy_tlb()Brian Gerst1-7/+2
Move the #ifdef into the function body. Signed-off-by: Brian Gerst <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Memorize location of i8259 for reboots.Eric W. Biederman2-37/+109
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 <[email protected]> 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 <[email protected]> Signed-off-by: Vivek Goyal <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: allow setting RF in EFLAGSChuck Ebbert2-6/+12
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: "invalid operand" -> "invalid opcode"Chuck Ebbert1-1/+1
The manual says Int 6 is "invalid opcode", not "invalid operand". Signed-off-by: Chuck Ebbert <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Sparse warnings fix.Luiz Fernando Capitulino1-2/+2
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Remove useless KDB vectorAndi Kleen6-22/+3
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Don't claim too many vectors for TLB flushingJason Uhlenkott1-4/+3
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Tell user to enable GART_IOMMU when neededAndi Kleen1-2/+3
Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Fix warning in nmi.c on uniprocessor kernelsAndi Kleen1-0/+2
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Allocate PDAs in the local nodeRavikiran G Thirumalai4-3/+25
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 <[email protected]> Signed-off-by: Shai Fultheim <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Node local pda take 2 -- cpu_pda preparationRavikiran G Thirumalai9-20/+21
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 <[email protected]> Signed-off-by: Shai Fultheim <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Early initialization of cpu_to_nodeRavikiran Thirumalai3-0/+32
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 <[email protected]> Signed-off-by: Ravikiran Thirumalai <[email protected]> Signed-off-by: Shai Fultheim <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Fix up white space in time.cAndi Kleen1-39/+32
No functional changes. And remove one redundant prototype. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Use standard __always_inline in vsyscall.cAndi Kleen1-6/+5
Replacing the old home brewn __force_inline. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] i386: Replace broken serialize_cpu in microcode driver with correct ↵Andi Kleen2-4/+6
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: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSCAndi Kleen5-21/+26
RDTSC serialization using cpuid is not needed for Intel platforms. This increases gettimeofday performance. Cc: [email protected] Cc: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Support alternative() in vsyscallsAndi Kleen1-2/+10
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Support alternative() with a output argument.Andi Kleen1-0/+15
Needed for follow on patches Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Don't try to synchronize the TSC over CPUs on Intel CPUs at ↵Andi Kleen3-3/+11
boot. They already do this in hardware and the Linux algorithm actually adds errors. Cc: [email protected] Cc: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Fix compile error with !CONFIG_COMPATAndi Kleen2-2/+1
cpumask.h wasn't included implicitely into proto.h in this case. Just move it over to smp.h Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: x86_64 write apic id fixVivek Goyal2-1/+2
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 <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Remove duplicate exportsBrian Gerst1-22/+0
Remove exports that are already exported from the object's source file. Signed-off-by: Brian Gerst <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: unexport pci_*_consistentBrian Gerst1-5/+0
These functions are inlines and shouldn't be exported. Signed-off-by: Brian Gerst <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Remove unused apic_write_atomicAndi Kleen1-5/+0
This function is never used for x86_64. Signed-off-by: Brian Gerst <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Make the cpu_*_maps in kernel/sched.c read mostlyAndi Kleen1-3/+3
They are referred to often so avoid potential false sharing for them. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] i386: make pci_map_single/pci_map_sg warn for zero length.Andi Kleen1-3/+9
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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Enable sound in old style OSS driver for NForce4 CK804Andi Kleen1-1/+2
Just add the missing PCI ID. Cc: [email protected] Cc: [email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Make it clear in machine checks that it's an hardware problemAndi Kleen1-0/+4
Hopefully the users will take the hint. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Clean up copy_*_userAndi Kleen1-221/+23
- 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 <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-11[PATCH] x86_64: Use function pointers to call DMA mapping functionsMuli Ben-Yehuda14-564/+641
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 <[email protected]> Signed-Off-By: Jon D. Mason <[email protected]> Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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