CONFIG_PA11 is not available for the selected architecture x86.
Result is shown for architecture parisc

CONFIG_PA11 (not configurable)

modulename: pci-dma.ko

configname: CONFIG_PA11

Linux/PA-RISC Kernel Configuration
└─>Processor type and features
└─>PA11
In linux kernel since version 2.6.12 )
source code:
arch/parisc/kernel/pci-dma.c