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/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2000 Doug Rabson
* Copyright (c) 2009, Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _SYS_AGPGART_H
#define _SYS_AGPGART_H
#ifdef __cplusplus
extern "C" {
#endif
#define AGP_NORMAL 0 /* mapped to user land, no cache */
typedef struct _agp_version {
uint16_t agpv_major;
uint16_t agpv_minor;
} agp_version_t;
typedef struct _agp_info {
agp_version_t agpi_version;
uint32_t agpi_devid; /* bridge vendor + device */
uint32_t agpi_mode; /* mode of brdige */
ulong_t agpi_aperbase; /* base of aperture */
size_t agpi_apersize; /* aperture range size */
uint32_t agpi_pgtotal; /* max number of pages in aperture */
uint32_t agpi_pgsystem; /* same as pg_total */
uint32_t agpi_pgused; /* NUMBER of currently used pages */
} agp_info_t;
typedef struct _agp_setup {
uint32_t agps_mode;
} agp_setup_t;
typedef struct _agp_allocate {
int32_t agpa_key;
uint32_t agpa_pgcount;
uint32_t agpa_type;
uint32_t agpa_physical; /* for i810 only, private */
} agp_allocate_t;
typedef struct _agp_bind_pages {
uint32_t agpb_pgstart;
pfn_t *agpb_pages;
unsigned long agpb_pgcount;
} agp_bind_pages_t;
typedef struct _agp_unbind_pages {
uint32_t agpb_pgstart;
unsigned long agpb_pgcount;
uint32_t agpb_type;
} agp_unbind_pages_t;
typedef struct _agp_bind {
int32_t agpb_key;
uint32_t agpb_pgstart;
} agp_bind_t;
typedef struct _agp_unbind {
int32_t agpu_key;
uint32_t agpu_pri; /* no use in solaris */
} agp_unbind_t;
#define AGPIOC_BASE 'G'
#define AGPIOC_INFO _IOR(AGPIOC_BASE, 0, 100)
#define AGPIOC_ACQUIRE _IO(AGPIOC_BASE, 1)
#define AGPIOC_RELEASE _IO(AGPIOC_BASE, 2)
#define AGPIOC_SETUP _IOW(AGPIOC_BASE, 3, agp_setup_t)
#define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 4, agp_allocate_t)
#define AGPIOC_DEALLOCATE _IOW(AGPIOC_BASE, 5, int)
#define AGPIOC_BIND _IOW(AGPIOC_BASE, 6, agp_bind_t)
#define AGPIOC_UNBIND _IOW(AGPIOC_BASE, 7, agp_unbind_t)
#define AGPIOC_IOREMAP _IO(AGPIOC_BASE, 8)
#define AGPIOC_IOREMAP_FREE _IO(AGPIOC_BASE, 9)
#define AGPIOC_READ _IO(AGPIOC_BASE, 10)
#define AGPIOC_WRITE _IO(AGPIOC_BASE, 11)
#define AGPIOC_FLUSHCHIPSET _IO(AGPIOC_BASE, 12)
#define AGPIOC_PAGES_BIND _IOW(AGPIOC_BASE, 13, agp_bind_pages_t)
#define AGPIOC_PAGES_UNBIND _IOW(AGPIOC_BASE, 14, agp_unbind_pages_t)
#define AGPIOC_PAGES_REBIND _IO(AGPIOC_BASE, 15)
/* AGP status register bits definition */
#define AGPSTAT_RQ_MASK 0xff000000 /* target only */
#define AGPSTAT_SBA (0x1 << 9) /* always 1 for 3.0 */
#define AGPSTAT_OVER4G (0x1 << 5)
#define AGPSTAT_FW (0x1 << 4)
#define AGPSTAT_RATE_MASK 0x7
/* rate for 2.0 mode */
#define AGP2_RATE_1X 0x1
#define AGP2_RATE_2X 0x2
#define AGP2_RATE_4X 0x4
/* AGP 3.0 only bits */
#define AGPSTAT_ARQSZ_MASK (0x7 << 13) /* target only */
#define AGPSTAT_CAL_MASK (0x7 << 10)
#define AGPSTAT_GART64B (0x1 << 7) /* target only */
#define AGPSTAT_MODE3 (0x1 << 3)
/* Rate for 3.0 mode */
#define AGP3_RATE_4X 0x1
#define AGP3_RATE_8X 0x2
/* AGP command register bits definition */
#define AGPCMD_RQ_MASK 0xff000000 /* master only */
#define AGPCMD_SBAEN (0x1 << 9) /* must be 1 for 3.0 */
#define AGPCMD_AGPEN (0x1 << 8)
#define AGPCMD_OVER4GEN (0x1 << 5)
#define AGPCMD_FWEN (0x1 << 4)
#define AGPCMD_RATE_MASK 0x7
/* AGP 3.0 only bits */
#define AGP3_CMD_ARQSZ_MASK (0x7 << 13) /* master only */
#define AGP3_CMD_CAL_MASK (0x7 << 10) /* target only */
#define AGP3_CMD_GART64BEN (0x1 << 7) /* target only */
#define AGP_DEVICE "/dev/agpgart"
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AGPGART_H */
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