1a0c0250a7
I had assumed for ages this would increase the amount of caching and thereby increase the chance of stale caches leading to rendering glitches. But apparently I was wrong, and failing to pass these through was causing all sorts of problems!
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/* $NetBSD: agp_i810var.h,v 1.6 2015/03/06 22:03:06 riastradh Exp $ */
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/*-
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* Copyright (c) 2000 Doug Rabson
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* Copyright (c) 2000 Ruslan Ermilov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/bus.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/agpvar.h>
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struct agp_i810_softc {
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struct pci_attach_args vga_pa; /* integrated graphics device args */
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int chiptype; /* chipset family: i810, i830, &c. */
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uint32_t stolen; /* pages of stolen graphics memory */
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/* Memory-mapped I/O for integrated graphics device registers. */
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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bus_size_t size;
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/* Graphics translation table. */
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bus_space_tag_t gtt_bst;
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bus_space_handle_t gtt_bsh;
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bus_size_t gtt_size;
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/* Chipset flush page. */
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bus_space_tag_t flush_bst;
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bus_space_handle_t flush_bsh;
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bus_addr_t flush_addr;
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/* i810-only fields. */
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struct agp_gatt *gatt; /* i810-only OS-allocated GTT */
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uint32_t dcache_size; /* i810-only on-chip memory size */
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/* XXX Kludge to work around broken X servers. */
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pcireg_t pgtblctl;
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/* XXX Vestige of unfinished powerhook? */
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uint32_t pgtblctl_resume_hack;
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};
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extern struct agp_softc *agp_i810_sc;
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#define AGP_I810_GTT_VALID 0x01
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#define AGP_I810_GTT_I810_DCACHE 0x02 /* i810-only */
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#define AGP_I810_GTT_CACHED 0x06 /* >=i830 */
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int agp_i810_write_gtt_entry(struct agp_i810_softc *, off_t, bus_addr_t,
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int);
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void agp_i810_post_gtt_entry(struct agp_i810_softc *, off_t);
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void agp_i810_chipset_flush(struct agp_i810_softc *);
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