* These are the virtual IRQ numbers, we divide all IRQ's into
* 'spaces', the 'space' determines where and how to enable/disable
* that particular IRQ on an SGI machine. HPC DMA and MC DMA interrups
* These are the virtual IRQ numbers, we divide all IRQ's into
* 'spaces', the 'space' determines where and how to enable/disable
* that particular IRQ on an SGI machine. HPC DMA and MC DMA interrups