Lines Matching defs:aperture
64 uint32_t aperture;
133 /* Set the aperture bus address base (must be 0) */
141 sc->aperture = 256*1024*1024;
143 for (sc->aperture = 256*1024*1024; sc->aperture >= 4*1024*1024;
144 sc->aperture /= 2) {
149 if (sc->aperture < 4*1024*1024) {
155 AGP_SET_APERTURE(dev, sc->aperture);
159 /* Enable the aperture and TLB. */
172 /* Disable the aperture and TLB */
194 return (sc->aperture);
198 agp_apple_set_aperture(device_t dev, uint32_t aperture)
206 if (aperture % (4*1024*1024)
207 || aperture < 4*1024*1024
208 || aperture > ((sc->u3) ? 512 : 256)*1024*1024)
211 /* The aperture value is a multiple of 4 MB */
212 aperture /= (4*1024*1024);
215 (sc->gatt->ag_physical & 0xfffff000) | aperture, 4);