AuxXxilium/linux_dsm_epyc7002
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820a149705
linux_dsm_epyc7002/arch/x86_64/kernel
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Muli Ben-Yehuda 820a149705 x86_64: Calgary - tighten up the bitmap locking 
Currently the IOMMU table's lock protects both the bitmap and access
to the hardware's TCE table. Access to the TCE table is synchronized
through the bitmap; therefore, only hold the lock while modifying the
bitmap. This gives a yummy 10-15% reduction in CPU utilization for
netperf on a large SMP machine.

Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:11 -07:00
..
acpi PM: Integrate beeping flag with existing acpi_sleep flags 2007-07-19 10:04:43 -07:00
cpufreq [CPUFREQ] the overdue removal of X86_SPEEDSTEP_CENTRINO_ACPI 2007-07-13 01:29:51 -04:00
aperture.c x86_64: off-by-two error in aperture.c 2007-05-11 12:53:00 -07:00
apic.c x86_64: apic.c coding style janitor work 2007-07-21 18:37:09 -07:00
asm-offsets.c [PATCH] x86-64: Auto compute __NR_syscall_max at compile time 2007-05-02 19:27:18 +02:00
audit.c [PATCH] audit signal recipients 2007-05-11 05:38:25 -04:00
bugs.c x86_64: Add asm/mtrr.h include for some builds 2007-05-12 09:47:15 -07:00
crash_dump.c [PATCH] kdump: read previous kernel's memory 2006-01-10 08:01:28 -08:00
crash.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
e820.c x86_64: extract helper function from e820_register_active_regions 2007-07-21 18:37:10 -07:00
early_printk.c xen: use the hvc console infrastructure for Xen console 2007-07-18 08:47:44 -07:00
early-quirks.c [PATCH] x86: revert x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525 2007-05-02 19:27:04 +02:00
entry.S x86_64: support poll() on /dev/mcelog 2007-07-21 18:37:10 -07:00
genapic_flat.c [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c 2007-05-02 19:27:21 +02:00
genapic.c [PATCH] x86: adjust inclusion of asm/fixmap.h 2007-05-02 19:27:04 +02:00
head64.c x86_64: display more intuitive error message if kernel is not 2MB aligned 2007-05-11 08:29:32 -07:00
head.S x86: initial fixmap support 2007-07-16 09:05:35 -07:00
hpet.c x86_64: fiuxp pt_reqs leftovers 2007-07-21 18:37:09 -07:00
i387.c [PATCH] x86-64: use BUILD_BUG_ON in FPU code 2006-12-07 02:14:01 +01:00
i8259.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
init_task.c use the new percpu interface for shared data 2007-07-19 10:04:45 -07:00
io_apic.c x86_64: check remote IRR bit before migrating level triggered irq 2007-07-21 18:37:10 -07:00
ioport.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irq.c x86_64 irq: use mask/unmask and proper locking in fixup_irqs() 2007-06-26 16:54:29 -07:00
k8.c Avoid zero size allocation in cache_k8_northbridges() 2007-05-23 20:14:12 -07:00
kprobes.c Kprobes: The ON/OFF knob thru debugfs 2007-05-08 11:15:19 -07:00
ldt.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
machine_kexec.c Revert "[PATCH] x86: __pa and __pa_symbol address space separation" 2007-05-07 08:44:24 -07:00
Makefile Use a new CPU feature word to cover features that are spread around 2007-07-12 10:55:54 -07:00
mce_amd.c x86_64: Fix APIC typo 2007-07-21 18:37:09 -07:00
mce_intel.c [PATCH] x86: Add a cumulative thermal throttle event counter. 2006-09-26 10:52:42 +02:00
mce.c x86: round_jiffies() for i386 and x86-64 non-critical/corrected MCE polling 2007-07-21 18:37:10 -07:00
module.c [PATCH] Generic BUG for x86-64 2006-12-08 08:28:39 -08:00
mpparse.c x86_64: remove unused variable maxcpus 2007-07-21 18:37:09 -07:00
nmi.c x86_64: speedup touch_nmi_watchdog 2007-07-17 10:23:04 -07:00
pci-calgary.c x86_64: Calgary - tighten up the bitmap locking 2007-07-21 18:37:11 -07:00
pci-dma.c PCI: remove pci_dac_dma_... APIs 2007-07-11 16:02:11 -07:00
pci-gart.c x86_64: off-by-two error in aperture.c 2007-05-11 12:53:00 -07:00
pci-nommu.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pci-swiotlb.c [PATCH] x86-64: dma_ops as const 2007-05-02 19:27:06 +02:00
pmtimer.c [PATCH] time: x86_64: convert x86_64 to use GENERIC_TIME 2007-02-16 08:14:00 -08:00
process.c x86: Make Alt-SysRq-p display the debug register contents 2007-07-21 18:37:10 -07:00
ptrace.c Handle bogus %cs selector in single-step instruction decoding 2007-07-18 12:09:01 -07:00
reboot.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
relocate_kernel.S [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
setup64.c x86_64: Ignore compat mode SYSCALL when IA32_EMULATION is not defined 2007-06-22 18:41:19 -07:00
setup.c i386: Add L3 cache support to AMD CPUID4 emulation 2007-07-21 18:37:08 -07:00
signal.c x86_64: support poll() on /dev/mcelog 2007-07-21 18:37:10 -07:00
smp.c x86_64: Quicklist support for x86_64 2007-07-21 18:37:09 -07:00
smpboot.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
stacktrace.c simplify the stacktrace code 2007-05-08 11:14:58 -07:00
suspend_asm.S [PATCH] x86-64: Relocatable Kernel Support 2007-05-02 19:27:07 +02:00
suspend.c [PATCH] x86: Save and restore the fixed-range MTRRs of the BSP when suspending 2007-05-02 19:27:17 +02:00
sys_x86_64.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
syscall.c [PATCH] x86-64: Auto compute __NR_syscall_max at compile time 2007-05-02 19:27:18 +02:00
tce.c Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
time.c x86_64: time.c white space wreckage cleanup 2007-07-21 18:37:09 -07:00
trampoline.S [PATCH] x86-64: Move cpu verification code to common file 2007-05-02 19:27:08 +02:00
traps.c drivers/edac: add new nmi rescan 2007-07-19 10:04:53 -07:00
tsc_sync.c [PATCH] x86: Log reason why TSC was marked unstable 2007-05-02 19:27:08 +02:00
tsc.c x86_64: Remove dead code and other janitor work in tsc.c 2007-07-21 18:37:08 -07:00
verify_cpu.S Unify the CPU features vectors between i386 and x86-64 2007-07-12 10:55:54 -07:00
vmlinux.lds.S x86: PM_TRACE support 2007-07-21 18:37:10 -07:00
vsmp.c [PATCH] Fix build breakage with CONFIG_X86_VSMP 2006-10-12 12:25:27 -07:00
vsyscall.c x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu 2007-07-21 18:37:08 -07:00
x8664_ksyms.c [PATCH] x86: Export _proxy_pda for gcc 4.2 2007-03-16 21:07:36 +01:00