| Main index | Section 4 | Options |
| Ali: | M1541, M1621 and M1671 host to AGP bridges |
| AMD: | 751, 761 and 762 host to AGP bridges |
| ATI: | RS100, RS200, RS250 and RS300 AGP bridges |
| Intel: | i820, i840, i845, i850, and i860 host to AGP bridges |
| Intel: | i810, i810-DC100, i810E, i815, 830M, 845G, 845M, 852GM, 852GME, 855GM, 855GME, 865G, 915G and 915GM SVGA controllers |
| Intel: | 82443BX, 82443GX, 82443LX, 82815, 82820, 82830, 82840, 82845, 82845G, 82850, 82855, 82855GM, 82860, 82865, 82875P, E7205 and E7505 host to AGP bridges |
| NVIDIA: | |
| nForce and nForce2 AGP controllers | |
| SiS: | 530, 540, 550, 620, 630, 645, 645DX, 648, 650, 651, 655, 661, 730, 735, 740, 741, 745, 746, 760 and 5591 host to AGP bridges |
| VIA: | 3296, 82C597, 82C598, 82C691, 82C694X, 82C8363, 8235, 8237, 8361, 8367, 8371, 8377, 8501, 8601, 862x, 8633, 8653, 8703, 8753, 8754, 8763, 8783, KT880, PM800, PM880, PN800, PN880, PT880, XM266 and XN266 host to PCI bridges |
The most common application of agp is for running X(7) on the Intel i81x controllers.
| AGPIOC_INFO | |
Returns state of the
agp
system.
The result is a pointer to the following structure:
typedef struct _agp_info {
agp_version version; /* version of the driver */
uint32_t bridge_id; /* bridge vendor/device */
uint32_t agp_mode; /* mode info of bridge */
off_t aper_base; /* base of aperture */
size_t aper_size; /* size of aperture */
size_t pg_total; /* max pages (swap + system) */
size_t pg_system; /* max pages (system) */
size_t pg_used; /* current pages used */
} agp_info;
| |
| AGPIOC_ACQUIRE | |
| Acquire control of the AGP chipset for use by this client. Returns EBUSY if the AGP chipset is already acquired by another client. | |
| AGPIOC_RELEASE | |
| Release control of the AGP chipset. This does not unbind or free any allocated memory, which is the responsibility of the client to handle if necessary. | |
| AGPIOC_SETUP | |
Enable the AGP hardware with the relevant mode.
This
ioctl(2)
takes the following structure:
typedef struct _agp_setup {
uint32_t agp_mode; /* mode info of bridge */
} agp_setup;
The mode bits are defined in <sys/agpio.h>. | |
| AGPIOC_ALLOCATE | |
Allocate physical memory suitable for mapping into the AGP aperture.
This
ioctl(2)
takes the following structure:
typedef struct _agp_allocate {
int key; /* tag of allocation */
size_t pg_count; /* number of pages */
uint32_t type; /* 0 == normal, other devspec */
uint32_t physical; /* device specific (some devices
* need a phys address of the
* actual page behind the gatt
* table) */
} agp_allocate;
Returns a handle to the allocated memory. | |
| AGPIOC_DEALLOCATE | |
| Free the previously allocated memory associated with the handle passed. | |
| AGPIOC_BIND | |
Bind the allocated memory at given offset with the AGP aperture.
Returns
EINVAL
if the memory is already bound or the offset is not at AGP page boundary.
This
ioctl(2)
takes the following structure:
typedef struct _agp_bind {
int key; /* tag of allocation */
off_t pg_start; /* starting page to populate */
} agp_bind;
The tag of allocation is the handle returned by AGPIOC_ALLOCATE. | |
| AGPIOC_UNBIND | |
Unbind memory from the AGP aperture.
Returns
EINVAL
if the memory is not bound.
This
ioctl(2)
takes the following structure:
typedef struct _agp_unbind {
int key; /* tag of allocation */
uint32_t priority; /* priority for paging out */
} agp_unbind;
| |
| /dev/agpgart | |
| AGP device node. | |
| AGP (4) | November 28, 2007 |
| Main index | Section 4 | Options |
Please direct any comments about this manual page service to Ben Bullock. Privacy policy.
| “ | I think Unix and snowflakes are the only two classes of objects in the universe in which no two instances ever match exactly. | ” |
| — Noel Chiappa | ||