ioport_resource / iomem_resource - PCI specific?

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Hi,

I have a doubt regarding the following definitions in kernel/resource.c:

struct resource ioport_resource = {
       .name   = "PCI IO",
       .start  = 0x0000,
       .end    = IO_SPACE_LIMIT,
       .flags  = IORESOURCE_IO,
};

struct resource iomem_resource = {
       .name   = "PCI mem",
       .start  = 0UL,
       .end    = ~0UL,
       .flags  = IORESOURCE_MEM,
};

Aren't the symbols ioport_resource and iomem_resource meant for
"generic" resource management for all buses / devices? If yes, then
why their names have "PCI" tagged to them?

Just Curious,

Rajat
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