Lines Matching refs:aperture
51 u_int32_t initial_aperture; /* aperture size at startup */
145 * aperture so that the gatt size reduces.
157 /* Enable the aperture. */
177 /* Disable the aperture.. */
184 /* Put the aperture back the way it started. */
198 * The aperture size is equal to 4M<<gws.
205 agp_sis_set_aperture(device_t dev, u_int32_t aperture)
213 if (aperture & (aperture - 1)
214 || aperture < 4*1024*1024
215 || aperture > 256*1024*1024)
218 gws = ffs(aperture / 4*1024*1024) - 1;