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16 /* XXX This device has a 'dev-comm' property which apparently is
17 * XXX a pointer into the openfirmware's address space which is
18 * XXX a shared area the kernel driver can use to keep OBP
19 * XXX informed about the current resolution setting. The idea
20 * XXX is that the kernel can change resolutions, and as long
21 * XXX as the values in the 'dev-comm' area are accurate then
22 * XXX OBP can still render text properly to the console.
23 * XXX
24 * XXX I'm still working out the layout of this and whether there
25 * XXX are any signatures we need to look for etc.
90 #define RAMDAC_VID_XXXFB 0x00000088UL /* PCI base of XXX FB */
143 /* XXX This is a bit of a hack. I can't figure out exactly how the
144 * XXX two 8bpp areas of the framebuffer work. I imagine there is
145 * XXX a WID attribute somewhere else in the framebuffer which tells
146 * XXX the ramdac which of the two 8bpp framebuffer regions to take
147 * XXX the pixel from. So, for now, render into both regions to make
148 * XXX sure the pixel shows up.