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      1 /*	$NetBSD: agp_i810var.h,v 1.7 2018/08/27 00:51:37 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 Doug Rabson
      5  * Copyright (c) 2000 Ruslan Ermilov
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/types.h>
     31 #include <sys/bus.h>
     32 
     33 #include <dev/pci/pcivar.h>
     34 
     35 #include <dev/pci/agpvar.h>
     36 
     37 struct agp_i810_softc {
     38 	struct pci_attach_args vga_pa;	/* integrated graphics device args */
     39 	int chiptype;			/* chipset family: i810, i830, &c. */
     40 	uint32_t stolen;		/* pages of stolen graphics memory */
     41 
     42 	/* Memory-mapped I/O for integrated graphics device registers.  */
     43 	bus_space_tag_t bst;
     44 	bus_space_handle_t bsh;
     45 	bus_size_t size;
     46 
     47 	/* Graphics translation table.  */
     48 	bus_space_tag_t gtt_bst;
     49 	bus_space_handle_t gtt_bsh;
     50 	bus_size_t gtt_size;
     51 
     52 	/* Chipset flush page.  */
     53 	bus_space_tag_t flush_bst;
     54 	bus_space_handle_t flush_bsh;
     55 	bus_addr_t flush_addr;
     56 
     57 	/* i810-only fields.  */
     58 	struct agp_gatt *gatt;		/* i810-only OS-allocated GTT */
     59 	uint32_t dcache_size;		/* i810-only on-chip memory size */
     60 
     61 	/* Cached pgtblctl register for resume.  */
     62 	pcireg_t pgtblctl;
     63 };
     64 
     65 extern struct agp_softc	*agp_i810_sc;
     66 
     67 #define	AGP_I810_GTT_VALID		0x01
     68 #define	AGP_I810_GTT_I810_DCACHE	0x02 /* i810-only */
     69 #define	AGP_I810_GTT_CACHED		0x06 /* >=i830 */
     70 
     71 int	agp_i810_write_gtt_entry(struct agp_i810_softc *, off_t, bus_addr_t,
     72 	    int);
     73 void	agp_i810_post_gtt_entry(struct agp_i810_softc *, off_t);
     74 void	agp_i810_chipset_flush(struct agp_i810_softc *);
     75 void	agp_i810_reset(struct agp_i810_softc *);
     76