x86/PCI: Select CONFIG_PCI_LOCKLESS_CONFIG
authorThomas Gleixner <tglx@linutronix.de>
Thu, 16 Mar 2017 21:50:07 +0000 (22:50 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 28 Jun 2017 20:32:56 +0000 (22:32 +0200)
commitdf65c1bcd9b7b639177a5a15da1b8dc3bee4f5fa
treecf57264f1343300b390569054fa8e6bb068babd7
parent714fe383d6c9bd95d0d2cad8cbeff3688342d025
x86/PCI: Select CONFIG_PCI_LOCKLESS_CONFIG

All x86 PCI configuration space accessors have either their own
serialization or can operate completely lockless (ECAM).

Disable the global lock in the generic PCI configuration space accessors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Bjorn Helgaas <helgaas@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: linux-pci@vger.kernel.org
Link: http://lkml.kernel.org/r/20170316215057.295079391@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/Kconfig
arch/x86/pci/common.c