diff options
Diffstat (limited to 'linux/gamma_dma.c')
| -rw-r--r-- | linux/gamma_dma.c | 96 |
1 files changed, 36 insertions, 60 deletions
diff --git a/linux/gamma_dma.c b/linux/gamma_dma.c index 1b784f80..e2ac6061 100644 --- a/linux/gamma_dma.c +++ b/linux/gamma_dma.c @@ -37,6 +37,40 @@ #include <linux/interrupt.h> /* For task queue support */ #include <linux/delay.h> +#if 0 +#define DO_IOREMAP( _map ) \ +do { \ + (_map)->handle = DRM(ioremap)( (_map)->offset, (_map)->size ); \ +} while (0) + +#define DO_IOREMAPFREE( _map ) \ +do { \ + if ( (_map)->handle && (_map)->size ) \ + DRM(ioremapfree)( (_map)->handle, (_map)->size ); \ +} while (0) + +#define DO_FIND_MAP( _map, _offset ) \ +do { \ + int _i; \ + for ( _i = 0 ; _i < dev->map_count ; _i++ ) { \ + if ( dev->maplist[_i]->offset == _offset ) { \ + _map = dev->maplist[_i]; \ + break; \ + } \ + } \ +} while (0) +#endif + +/* WARNING!!! MAGIC NUMBER!!! The number of regions already added to the + kernel must be specified here. Currently, the number is 2. This must + match the order the X server uses for instantiating register regions , + or must be passed in a new ioctl. */ +#define GAMMA_REG(reg) \ + (2 \ + + ((reg < 0x1000) \ + ? 0 \ + : ((reg < 0x10000) ? 1 : ((reg < 0x11000) ? 2 : 3)))) + #define GAMMA_OFF(reg) \ ((reg < 0x1000) \ ? reg \ @@ -46,12 +80,7 @@ ? (reg - 0x10000) \ : (reg - 0x11000)))) -#define GAMMA_BASE(reg) ((unsigned long) \ - ((reg < 0x1000) ? dev_priv->mmio0->handle : \ - ((reg < 0x10000) ? dev_priv->mmio1->handle : \ - ((reg < 0x11000) ? dev_priv->mmio2->handle : \ - dev_priv->mmio3->handle)))) - +#define GAMMA_BASE(reg) ((unsigned long)dev->maplist[GAMMA_REG(reg)]->handle) #define GAMMA_ADDR(reg) (GAMMA_BASE(reg) + GAMMA_OFF(reg)) #define GAMMA_DEREF(reg) *(__volatile__ int *)GAMMA_ADDR(reg) #define GAMMA_READ(reg) GAMMA_DEREF(reg) @@ -78,8 +107,6 @@ static inline void gamma_dma_dispatch(drm_device_t *dev, unsigned long address, unsigned long length) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; GAMMA_WRITE(GAMMA_DMAADDRESS, virt_to_phys((void *)address)); while (GAMMA_READ(GAMMA_GCOMMANDSTATUS) != 4) ; @@ -88,8 +115,6 @@ static inline void gamma_dma_dispatch(drm_device_t *dev, unsigned long address, void gamma_dma_quiescent_single(drm_device_t *dev) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) @@ -106,8 +131,6 @@ void gamma_dma_quiescent_single(drm_device_t *dev) void gamma_dma_quiescent_dual(drm_device_t *dev) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) @@ -133,24 +156,18 @@ void gamma_dma_quiescent_dual(drm_device_t *dev) void gamma_dma_ready(drm_device_t *dev) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; while (GAMMA_READ(GAMMA_DMACOUNT)) ; } static inline int gamma_dma_is_ready(drm_device_t *dev) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; return !GAMMA_READ(GAMMA_DMACOUNT); } static void gamma_dma_service(int irq, void *device, struct pt_regs *regs) { drm_device_t *dev = (drm_device_t *)device; - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; drm_device_dma_t *dma = dev->dma; atomic_inc(&dev->counts[6]); /* _DRM_STAT_IRQ */ @@ -621,8 +638,6 @@ int gamma_dma(struct inode *inode, struct file *filp, unsigned int cmd, int gamma_irq_install(drm_device_t *dev, int irq) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; int retcode; if (!irq) return -EINVAL; @@ -677,8 +692,6 @@ int gamma_irq_install(drm_device_t *dev, int irq) int gamma_irq_uninstall(drm_device_t *dev) { - drm_gamma_private_t *dev_priv = (drm_gamma_private_t *) - dev->dev_private; int irq; down(&dev->struct_sem); @@ -698,6 +711,7 @@ int gamma_irq_uninstall(drm_device_t *dev) return 0; } + int gamma_control(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -723,41 +737,3 @@ int gamma_control(struct inode *inode, struct file *filp, unsigned int cmd, } return 0; } - -void gamma_dma_cleanup(drm_device_t *dev) -{ - drm_gamma_private_t *dev_priv; - - if(dev->dev_private) { - dev_priv = (drm_gamma_private_t *)dev->dev_private; - DRM(free)(dev_priv, - sizeof(drm_gamma_private_t), - DRM_MEM_DRIVER); - dev->dev_private = NULL; - } -} - -int gamma_dma_init(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_gamma_init_t init; - drm_gamma_private_t *dev_priv; - - if (copy_from_user(&init, (drm_gamma_init_t *)arg, sizeof(init))) - return -EFAULT; - - dev_priv = DRM(alloc)(sizeof(drm_gamma_private_t), - DRM_MEM_DRIVER); - if(!dev_priv) return -ENOMEM; - - memset(dev_priv, 0, sizeof(drm_gamma_private_t)); - - DRM_FIND_MAP(dev_priv->mmio0, init.hControlRegs0); - DRM_FIND_MAP(dev_priv->mmio1, init.hControlRegs1); - DRM_FIND_MAP(dev_priv->mmio2, init.hControlRegs2); - DRM_FIND_MAP(dev_priv->mmio3, init.hControlRegs3); - - return 0; -} |