summaryrefslogtreecommitdiff
path: root/linux/i810_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux/i810_dma.c')
-rw-r--r--linux/i810_dma.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/linux/i810_dma.c b/linux/i810_dma.c
index e9b0e807..ae0a3616 100644
--- a/linux/i810_dma.c
+++ b/linux/i810_dma.c
@@ -86,6 +86,7 @@ static inline void i810_print_status_page(drm_device_t *dev)
DRM_DEBUG( "hw_status: LpRing Head ptr : %x\n", temp[1]);
DRM_DEBUG( "hw_status: IRing Head ptr : %x\n", temp[2]);
DRM_DEBUG( "hw_status: Reserved : %x\n", temp[3]);
+ DRM_DEBUG( "hw_status: Last Render: %x\n", temp[4]);
DRM_DEBUG( "hw_status: Driver Counter : %d\n", temp[5]);
for(i = 6; i < dma->buf_count + 6; i++) {
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
@@ -471,6 +472,9 @@ static int i810_dma_initialize(drm_device_t *dev,
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
+ dev_priv->overlay_offset = init->overlay_offset;
+ dev_priv->overlay_physical = init->overlay_physical;
+
dev_priv->front_di1 = init->front_offset | init->pitch_bits;
dev_priv->back_di1 = init->back_offset | init->pitch_bits;
dev_priv->zi1 = init->depth_offset | init->pitch_bits;
@@ -1259,3 +1263,156 @@ int i810_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
if(VM_DONTCOPY == 0) return 1;
return 0;
}
+
+static void i810_dma_dispatch_mc(drm_device_t *dev, drm_buf_t *buf, int used,
+ unsigned int last_render)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ unsigned long address = (unsigned long)buf->bus_address;
+ unsigned long start = address - dev->agp->base;
+ int u;
+ RING_LOCALS;
+
+ i810_kernel_lost_context(dev);
+
+ u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
+ I810_BUF_HARDWARE);
+ if(u != I810_BUF_CLIENT) {
+ DRM_DEBUG("MC found buffer that isn't mine!\n");
+ }
+
+ if (used > 4*1024)
+ used = 0;
+
+ sarea_priv->dirty = 0x7f;
+
+ DRM_DEBUG("dispatch mc addr 0x%lx, used 0x%x\n",
+ address, used);
+
+ dev_priv->counter++;
+ DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
+ DRM_DEBUG("i810_dma_dispatch_mc\n");
+ DRM_DEBUG("start : %lx\n", start);
+ DRM_DEBUG("used : %d\n", used);
+ DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
+
+ if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
+ if (used & 4) {
+ *(u32 *)((u32)buf_priv->virtual + used) = 0;
+ used += 4;
+ }
+
+ i810_unmap_buffer(buf);
+ }
+ BEGIN_LP_RING(4);
+ OUT_RING( CMD_OP_BATCH_BUFFER );
+ OUT_RING( start | BB1_PROTECTED );
+ OUT_RING( start + used - 4 );
+ OUT_RING( 0 );
+ ADVANCE_LP_RING();
+
+
+ BEGIN_LP_RING(8);
+ OUT_RING( CMD_STORE_DWORD_IDX );
+ OUT_RING( buf_priv->my_use_idx );
+ OUT_RING( I810_BUF_FREE );
+ OUT_RING( 0 );
+
+ OUT_RING( CMD_STORE_DWORD_IDX );
+ OUT_RING( 16 );
+ OUT_RING( last_render );
+ OUT_RING( 0 );
+ ADVANCE_LP_RING();
+}
+
+int i810_dma_mc(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_device_dma_t *dma = dev->dma;
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+ u32 *hw_status = (u32 *)dev_priv->hw_status_page;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
+ drm_i810_mc_t mc;
+
+ if (copy_from_user(&mc, (drm_i810_mc_t *)arg, sizeof(mc)))
+ return -EFAULT;
+
+
+ if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_dma_mc called without lock held\n");
+ return -EINVAL;
+ }
+
+ i810_dma_dispatch_mc(dev, dma->buflist[mc.idx], mc.used,
+ mc.last_render );
+
+ atomic_add(mc.used, &dev->counts[_DRM_STAT_SECONDARY]);
+ atomic_inc(&dev->counts[_DRM_STAT_DMA]);
+ sarea_priv->last_enqueue = dev_priv->counter-1;
+ sarea_priv->last_dispatch = (int) hw_status[5];
+
+ return 0;
+}
+
+int i810_rstatus(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ return (int)(((u32 *)(dev_priv->hw_status_page))[4]);
+}
+
+int i810_ov0_info(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+ drm_i810_overlay_t data;
+
+ data.offset = dev_priv->overlay_offset;
+ data.physical = dev_priv->overlay_physical;
+ copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data));
+ return 0;
+}
+
+int i810_fstatus(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_fstatus called without lock held\n");
+ return -EINVAL;
+ }
+ return I810_READ(0x30008);
+}
+
+int i810_ov0_flip(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_ov0_flip called without lock held\n");
+ return -EINVAL;
+ }
+
+ //Tell the overlay to update
+ I810_WRITE(0x30000,dev_priv->overlay_physical | 0x80000000);
+
+ return 0;
+}
+
+