diff options
| -rw-r--r-- | linux/gamma_dma.c | 30 | ||||
| -rw-r--r-- | linux/gamma_drv.c | 39 | ||||
| -rw-r--r-- | linux/gamma_drv.h | 2 |
3 files changed, 65 insertions, 6 deletions
diff --git a/linux/gamma_dma.c b/linux/gamma_dma.c index eec0f859..444f25ef 100644 --- a/linux/gamma_dma.c +++ b/linux/gamma_dma.c @@ -87,13 +87,31 @@ static inline void gamma_dma_dispatch(drm_device_t *dev, unsigned long address, GAMMA_WRITE(GAMMA_DMACOUNT, length / 4); } -static inline void gamma_dma_quiescent(drm_device_t *dev) +static inline void gamma_dma_quiescent_single(drm_device_t *dev) { while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) ; + + GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); + GAMMA_WRITE(GAMMA_SYNC, 0); + + do { + while (!GAMMA_READ(GAMMA_OUTFIFOWORDS)) + ; + } while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG); +} + +static inline void gamma_dma_quiescent_dual(drm_device_t *dev) +{ + while (GAMMA_READ(GAMMA_DMACOUNT)) + ; + while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) + ; + GAMMA_WRITE(GAMMA_BROADCASTMASK, 3); + GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); GAMMA_WRITE(GAMMA_SYNC, 0); @@ -103,7 +121,6 @@ static inline void gamma_dma_quiescent(drm_device_t *dev) ; } while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG); - /* Read from second MX */ do { while (!GAMMA_READ(GAMMA_OUTFIFOWORDS + 0x10000)) @@ -788,8 +805,13 @@ int gamma_lock(struct inode *inode, struct file *filp, unsigned int cmd, if (!ret) { if (lock.flags & _DRM_LOCK_READY) gamma_dma_ready(dev); - if (lock.flags & _DRM_LOCK_QUIESCENT) - gamma_dma_quiescent(dev); + if (lock.flags & _DRM_LOCK_QUIESCENT) { + if (gamma_found() == 1) { + gamma_dma_quiescent_single(dev); + } else { + gamma_dma_quiescent_dual(dev); + } + } } DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); diff --git a/linux/gamma_drv.c b/linux/gamma_drv.c index a3c2bd4a..87595244 100644 --- a/linux/gamma_drv.c +++ b/linux/gamma_drv.c @@ -31,6 +31,7 @@ #define EXPORT_SYMTAB #include "drmP.h" #include "gamma_drv.h" +#include <linux/pci.h> EXPORT_SYMBOL(gamma_init); EXPORT_SYMBOL(gamma_cleanup); @@ -98,10 +99,13 @@ static drm_ioctl_desc_t gamma_ioctls[] = { int init_module(void); void cleanup_module(void); static char *gamma = NULL; +static int devices = 0; MODULE_AUTHOR("Precision Insight, Inc., Cedar Park, Texas."); MODULE_DESCRIPTION("3dlabs GMX 2000"); MODULE_PARM(gamma, "s"); +MODULE_PARM(devices, "i"); +MODULE_PARM_DESC(devices, "devices=x, where x is the number of MX chips on your card\n"); /* init_module is called when insmod is used to load the module */ @@ -314,6 +318,34 @@ static int gamma_takedown(drm_device_t *dev) return 0; } +int gamma_found(void) +{ + return devices; +} + +int gamma_find_devices(void) +{ + struct pci_dev *d = NULL, *one = NULL, *two = NULL; + + d = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_GAMMA,d); + if (!d) return 0; + + one = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,d); + if (!one) return 0; + + /* Make sure it's on the same card, if not - no MX's found */ + if (PCI_SLOT(d->devfn) != PCI_SLOT(one->devfn)) return 0; + + two = pci_find_device(PCI_VENDOR_ID_3DLABS,PCI_DEVICE_ID_3DLABS_MX,one); + if (!two) return 1; + + /* Make sure it's on the same card, if not - only 1 MX found */ + if (PCI_SLOT(d->devfn) != PCI_SLOT(two->devfn)) return 1; + + /* Two MX's found - we don't currently support more than 2 */ + return 2; +} + /* gamma_init is called via init_module at module load time, or via * linux/init/main.c (this is not currently supported). */ @@ -331,6 +363,8 @@ int gamma_init(void) #ifdef MODULE drm_parse_options(gamma); #endif + devices = gamma_find_devices(); + if (devices == 0) return -1; if ((retcode = misc_register(&gamma_misc))) { DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME); @@ -342,13 +376,14 @@ int gamma_init(void) drm_mem_init(); drm_proc_init(dev); - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d with %d MX devices\n", GAMMA_NAME, GAMMA_MAJOR, GAMMA_MINOR, GAMMA_PATCHLEVEL, GAMMA_DATE, - gamma_misc.minor); + gamma_misc.minor, + devices); return 0; } diff --git a/linux/gamma_drv.h b/linux/gamma_drv.h index d78a13eb..3d5b5dec 100644 --- a/linux/gamma_drv.h +++ b/linux/gamma_drv.h @@ -53,5 +53,7 @@ extern int gamma_irq_install(drm_device_t *dev, int irq); extern int gamma_irq_uninstall(drm_device_t *dev); extern int gamma_control(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int gamma_find_devices(void); +extern int gamma_found(void); #endif |