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Lines Matching refs:aperture

68 	u_int32_t	initial_aperture; /* aperture size at startup */
188 		aprint_error(": can't map aperture\n");
206 		 * aperture so that the gatt size reduces.
209 			aprint_error(": can't set aperture\n");
250 	/* Put the aperture back the way it started. */
269 	 * The aperture size is equal to 32M<<vas.
275 agp_amd_set_aperture(struct agp_softc *sc, u_int32_t aperture)
284 	if (aperture & (aperture - 1)
285 	    || aperture < 32*1024*1024
286 	    || aperture > 2U*1024*1024*1024)
289 	vas = ffs(aperture / 32*1024*1024) - 1;