int
via_decoder_futex(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_via_futex_t fx;
volatile int *lock;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
int ret = 0;
DRM_DEBUG("%s\n", __FUNCTION__);
DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t __user *) data,
sizeof(fx));
if (fx.lock > VIA_NR_XVMC_LOCKS)
return -EFAULT;
lock = (int *)XVMCLOCKPTR(sAPriv, fx.lock);
switch (fx.func) {
case VIA_FUTEX_WAIT:
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock],
(fx.ms / 10) * (DRM_HZ / 100), *lock != fx.val);
return ret;
case VIA_FUTEX_WAKE:
DRM_WAKEUP(&(dev_priv->decoder_queue[fx.lock]));
return 0;
}
return 0;
}
int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_via_futex_t *fx = data;
volatile int *lock;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
int ret = 0;
DRM_DEBUG("\n");
if (fx->lock >= VIA_NR_XVMC_LOCKS)
return -EFAULT;
lock = (volatile int *)XVMCLOCKPTR(sAPriv, fx->lock);
switch (fx->func) {
case VIA_FUTEX_WAIT:
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx->lock],
(fx->ms / 10) * (DRM_HZ / 100), *lock != fx->val);
return ret;
case VIA_FUTEX_WAKE:
DRM_WAKEUP(&(dev_priv->decoder_queue[fx->lock]));
return 0;
}
return 0;
}
void via_init_futex(drm_via_private_t * dev_priv)
{
unsigned int i;
DRM_DEBUG("\n");
for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
DRM_INIT_WAITQUEUE(&(dev_priv->decoder_queue[i]));
XVMCLOCKPTR(dev_priv->sarea_priv, i)->lock = 0;
}
}
void
via_release_futex(drm_via_private_t *dev_priv, int context)
{
unsigned int i;
volatile int *lock;
for (i=0; i < VIA_NR_XVMC_LOCKS; ++i) {
lock = (int *) XVMCLOCKPTR(dev_priv->sarea_priv, i);
if ( (_DRM_LOCKING_CONTEXT( *lock ) == context)) {
if (_DRM_LOCK_IS_HELD( *lock ) && (*lock & _DRM_LOCK_CONT)) {
DRM_WAKEUP( &(dev_priv->decoder_queue[i]));
}
*lock = 0;
}
}
}
void
ViaInitXVMC(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
VIAPtr pVia = VIAPTR(pScrn);
ViaXvMCPtr vXvMC = &(pVia->xvmc);
volatile ViaXvMCSAreaPriv *saPriv;
pVia->XvMCEnabled = 0;
if ((pVia->Chipset == VIA_KM400) ||
(pVia->Chipset == VIA_CX700) ||
(pVia->Chipset == VIA_K8M890) ||
(pVia->Chipset == VIA_P4M900) ||
(pVia->Chipset == VIA_VX800) ||
(pVia->Chipset == VIA_VX855) ||
(pVia->Chipset == VIA_VX900)) {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"[XvMC] XvMC is not supported on this chipset.\n");
return;
}
if (!pVia->directRenderingType) {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"[XvMC] Cannot use XvMC without DRI!\n");
return;
}
if (((pVia->drmVerMajor <= 2) && (pVia->drmVerMinor < 4))) {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"[XvMC] Kernel drm is not compatible with XvMC.\n");
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"[XvMC] Kernel drm version is %d.%d.%d; "
"at least version 2.4.0 is needed.\n",
pVia->drmVerMajor, pVia->drmVerMinor, pVia->drmVerPL);
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"[XvMC] Please update. Disabling XvMC.\n");
return;
}
vXvMC->mmioBase = pVia->registerHandle;
if (drmAddMap(pVia->drmmode.fd,
(drm_handle_t) pVia->FrameBufferBase,
pVia->videoRambytes, DRM_FRAME_BUFFER, 0,
&(vXvMC->fbBase)) < 0) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[XvMC] drmAddMap(FB) failed. Disabling XvMC.\n");
return;
}
initViaXvMC(vXvMC);
if (!xf86XvMCScreenInit(pScreen, 1, ((pVia->Chipset == VIA_PM800)
? ppAdapt_pga : ppAdapt))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"[XvMC] XvMCScreenInit failed. Disabling XvMC.\n");
drmRmMap(pVia->drmmode.fd, vXvMC->fbBase);
return;
}
#if (XvMCVersion > 1) || (XvMCRevision > 0)
{
DRIInfoPtr pDRIInfo = pVia->pDRIInfo;
if (pVia->ChipId != PCI_CHIP_VT3259 &&
pVia->ChipId != PCI_CHIP_VT3364) {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"[XvMC] Registering chromeXvMC.\n");
xf86XvMCRegisterDRInfo(pScreen, "chromeXvMC", pDRIInfo->busIdString,
VIAXVMC_MAJOR, VIAXVMC_MINOR, VIAXVMC_PL);
} else {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"[XvMC] Registering chromeXvMCPro.\n");
xf86XvMCRegisterDRInfo(pScreen, "chromeXvMCPro",
pDRIInfo->busIdString, VIAXVMC_MAJOR,
VIAXVMC_MINOR, VIAXVMC_PL);
}
}
#endif
vXvMC->activePorts = 0;
saPriv = (ViaXvMCSAreaPriv *) DRIGetSAREAPrivate(pScreen);
saPriv->XvMCCtxNoGrabbed = ~0;
XVMCLOCKPTR(saPriv, UNICHROME_LOCK_DECODER1)->lock = 0;
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"[XvMC] Initialized XvMC extension.\n");
pVia->XvMCEnabled = 1;
}