/* XXX Interface may change. */
_X_EXPORT Bool
xf86EnableAGP(int screenNum, CARD32 mode)
{
agp_setup_t setup;
if (!GARTInit(screenNum) || (acquiredScreen != screenNum))
return FALSE;
setup.agps_mode = mode;
if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
"AGPIOC_SETUP with mode %x failed (%s)\n",
mode, strerror(errno));
return FALSE;
}
return TRUE;
}
Bool
xf86AcquireGART(int screenNum)
{
if (!GARTInit(screenNum))
return FALSE;
if (acquiredScreen != screenNum) {
if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
xf86DrvMsg(screenNum, X_WARNING,
"xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n",
strerror(errno));
return FALSE;
}
acquiredScreen = screenNum;
xf86DrvMsg(screenNum, X_INFO,
"xf86AcquireGART: AGPIOC_ACQUIRE succeeded\n");
}
return TRUE;
}
/* Unbind GART memory with "key" */
Bool
xf86UnbindGARTMemory(int screenNum, int key)
{
agp_unbind_t unbind;
if (!GARTInit(screenNum) || (acquiredScreen != screenNum))
return FALSE;
unbind.agpu_pri = 0;
unbind.agpu_key = key;
if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
"unbinding of gart memory with key %d "
"failed (%s)\n", key, strerror(errno));
return FALSE;
}
xf86DrvMsgVerb(screenNum, X_INFO, 3,
"xf86UnbindGARTMemory: unbind key %d\n", key);
return TRUE;
}
int
xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
unsigned long *physical)
{
agp_allocate_t alloc;
int pages;
/*
* Allocates "size" bytes of GART memory (rounds up to the next
* page multiple) or type "type". A handle (key) for the allocated
* memory is returned. On error, the return value is -1.
* "size" should be larger than 0, or AGPIOC_ALLOCATE ioctl will
* return error.
*/
if (!GARTInit(screenNum) || (acquiredScreen != screenNum))
return -1;
pages = (size / AGP_PAGE_SIZE);
if (size % AGP_PAGE_SIZE != 0)
pages++;
alloc.agpa_pgcount = pages;
alloc.agpa_type = type;
if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
"allocation of %d pages failed\n\t(%s)\n", pages,
strerror(errno));
return -1;
}
if (physical)
*physical = (unsigned long)alloc.agpa_physical;
return alloc.agpa_key;
}
int
xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
unsigned long *physical)
{
struct _agp_allocate alloc;
int pages;
/*
* Allocates "size" bytes of GART memory (rounds up to the next
* page multiple) or type "type". A handle (key) for the allocated
* memory is returned. On error, the return value is -1.
*/
if (!GARTInit(screenNum) || acquiredScreen != screenNum)
return -1;
pages = (size / AGP_PAGE_SIZE);
if (size % AGP_PAGE_SIZE != 0)
pages++;
/* XXX check for pages == 0? */
alloc.pg_count = pages;
alloc.type = type;
if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
"allocation of %d pages failed\n\t(%s)\n", pages,
strerror(errno));
return -1;
}
if (physical)
*physical = alloc.physical;
return alloc.key;
}
AgpInfoPtr
xf86GetAGPInfo(int screenNum)
{
struct _agp_info agpinf;
AgpInfoPtr info;
if (!GARTInit(screenNum))
return NULL;
if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
xf86DrvMsg(screenNum, X_ERROR,
"xf86GetAGPInfo: Failed to allocate AgpInfo\n");
return NULL;
}
memset((char*)&agpinf, 0, sizeof(agpinf));
if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
xf86DrvMsg(screenNum, X_ERROR,
"xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
strerror(errno));
return NULL;
}
info->bridgeId = agpinf.bridge_id;
info->agpMode = agpinf.agp_mode;
info->base = agpinf.aper_base;
info->size = agpinf.aper_size;
info->totalPages = agpinf.pg_total;
info->systemPages = agpinf.pg_system;
info->usedPages = agpinf.pg_used;
xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used);
return info;
}
/* Bind GART memory with "key" at "offset" */
Bool
KdBindGARTMemory(int screenNum, int key, unsigned long offset)
{
struct _agp_bind bind;
int pageOffset;
if (!GARTInit() || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
fprintf(stderr,
"AGP not acquired by this screen\n");
return FALSE;
}
if (offset % AGP_PAGE_SIZE != 0) {
fprintf(stderr, "KdBindGARTMemory: "
"offset (0x%lx) is not page-aligned (%d)\n",
offset, AGP_PAGE_SIZE);
return FALSE;
}
pageOffset = offset / AGP_PAGE_SIZE;
bind.pg_start = pageOffset;
bind.key = key;
if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
fprintf(stderr, "KdBindGARTMemory: "
"binding of gart memory with key %d\n"
"\tat offset 0x%lx failed (%s)\n",
key, offset, strerror(errno));
return FALSE;
}
return TRUE;
}
Bool
xf86AgpGARTSupported(void)
{
return (GARTInit(-1));
}
Bool
xf86DeallocateGARTMemory(int screenNum, int key)
{
if (!GARTInit(screenNum) || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
xf86DrvMsg(screenNum, X_ERROR,
"xf86UnbindGARTMemory: AGP not acquired by this screen\n");
return FALSE;
}
#ifdef __linux__
if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)(uintptr_t)key) != 0) {
#else
if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) {
#endif
xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: "
"deallocation gart memory with key %d failed\n\t(%s)\n",
key, strerror(errno));
return FALSE;
}
return TRUE;
}
/* Bind GART memory with "key" at "offset" */
Bool
xf86BindGARTMemory(int screenNum, int key, unsigned long offset)
{
struct _agp_bind bind;
int pageOffset;
if (!GARTInit(screenNum) || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
xf86DrvMsg(screenNum, X_ERROR,
"xf86BindGARTMemory: AGP not acquired by this screen\n");
return FALSE;
}
if (offset % AGP_PAGE_SIZE != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
"offset (0x%lx) is not page-aligned (%d)\n",
offset, AGP_PAGE_SIZE);
return FALSE;
}
pageOffset = offset / AGP_PAGE_SIZE;
xf86DrvMsgVerb(screenNum, X_INFO, 3,
"xf86BindGARTMemory: bind key %d at 0x%08lx "
"(pgoffset %d)\n", key, offset, pageOffset);
bind.pg_start = pageOffset;
bind.key = key;
if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
"binding of gart memory with key %d\n"
"\tat offset 0x%lx failed (%s)\n",
key, offset, strerror(errno));
return FALSE;
}
return TRUE;
}
/* Unbind GART memory with "key" */
Bool
xf86UnbindGARTMemory(int screenNum, int key)
{
struct _agp_unbind unbind;
if (!GARTInit(screenNum) || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
xf86DrvMsg(screenNum, X_ERROR,
"xf86UnbindGARTMemory: AGP not acquired by this screen\n");
return FALSE;
}
unbind.priority = 0;
unbind.key = key;
if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
"unbinding of gart memory with key %d "
"failed (%s)\n", key, strerror(errno));
return FALSE;
}
xf86DrvMsgVerb(screenNum, X_INFO, 3,
"xf86UnbindGARTMemory: unbind key %d\n", key);
return TRUE;
}
/* XXX Interface may change. */
Bool
xf86EnableAGP(int screenNum, CARD32 mode)
{
agp_setup setup;
if (!GARTInit(screenNum) || acquiredScreen != screenNum)
return FALSE;
setup.agp_mode = mode;
if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
"AGPIOC_SETUP with mode %ld failed (%s)\n",
(unsigned long)mode, strerror(errno));
return FALSE;
}
return TRUE;
}
Bool
KdAgpGARTSupported()
{
return GARTInit();
}
