- cmd.nbox = rmesa->numClipRects;
- cmd.boxes = rmesa->pClipRects;
- }
-
- ret = drmCommandWrite( rmesa->dri.fd,
- DRM_RADEON_CMDBUF,
- &cmd, sizeof(cmd) );
-
- if (ret)
- fprintf(stderr, "drmCommandWrite: %d\n", ret);
-
- if (RADEON_DEBUG & DEBUG_SYNC) {
- fprintf(stderr, "\nSyncing in %s\n\n", __FUNCTION__);
- radeonWaitForIdleLocked( rmesa );
- }
-
- out:
- rmesa->store.primnr = 0;
- rmesa->store.statenr = 0;
- rmesa->store.cmd_used = 0;
- rmesa->dma.nr_released_bufs = 0;
- rmesa->save_on_next_emit = 1;
-
- return ret;
-}
-
-
-/* Note: does not emit any commands to avoid recursion on
- * radeonAllocCmdBuf.
- */
-void radeonFlushCmdBuf( radeonContextPtr rmesa, const char *caller )
-{
- int ret;
-
-
- LOCK_HARDWARE( rmesa );
-
- ret = radeonFlushCmdBufLocked( rmesa, caller );
-
- UNLOCK_HARDWARE( rmesa );
-
- if (ret) {
- fprintf(stderr, "drm_radeon_cmd_buffer_t: %d (exiting)\n", ret);
- exit(ret);
- }
-}
-
-/* =============================================================
- * Hardware vertex buffer handling
- */
-
-
-void radeonRefillCurrentDmaRegion( radeonContextPtr rmesa )
-{
- struct radeon_dma_buffer *dmabuf;
- int fd = rmesa->dri.fd;
- int index = 0;
- int size = 0;
- drmDMAReq dma;
- int ret;
-
- if (RADEON_DEBUG & (DEBUG_IOCTL|DEBUG_DMA))
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (rmesa->dma.flush) {
- rmesa->dma.flush( rmesa );
- }
-
- if (rmesa->dma.current.buf)
- radeonReleaseDmaRegion( rmesa, &rmesa->dma.current, __FUNCTION__ );
-
- if (rmesa->dma.nr_released_bufs > 4)
- radeonFlushCmdBuf( rmesa, __FUNCTION__ );
-
- dma.context = rmesa->dri.hwContext;
- dma.send_count = 0;
- dma.send_list = NULL;
- dma.send_sizes = NULL;
- dma.flags = 0;
- dma.request_count = 1;
- dma.request_size = RADEON_BUFFER_SIZE;
- dma.request_list = &index;
- dma.request_sizes = &size;
- dma.granted_count = 0;
-
- LOCK_HARDWARE(rmesa); /* no need to validate */
-
- ret = drmDMA( fd, &dma );
-
- if (ret != 0) {
- /* Free some up this way?
- */
- if (rmesa->dma.nr_released_bufs) {
- radeonFlushCmdBufLocked( rmesa, __FUNCTION__ );
- }
-
- if (RADEON_DEBUG & DEBUG_DMA)
- fprintf(stderr, "Waiting for buffers\n");
-
- radeonWaitForIdleLocked( rmesa );
- ret = drmDMA( fd, &dma );
-
- if ( ret != 0 ) {
- UNLOCK_HARDWARE( rmesa );
- fprintf( stderr, "Error: Could not get dma buffer... exiting\n" );
- exit( -1 );
- }
- }
-
- UNLOCK_HARDWARE(rmesa);
-
- if (RADEON_DEBUG & DEBUG_DMA)
- fprintf(stderr, "Allocated buffer %d\n", index);
-
- dmabuf = CALLOC_STRUCT( radeon_dma_buffer );
- dmabuf->buf = &rmesa->radeonScreen->buffers->list[index];
- dmabuf->refcount = 1;
-
- rmesa->dma.current.buf = dmabuf;
- rmesa->dma.current.address = dmabuf->buf->address;
- rmesa->dma.current.end = dmabuf->buf->total;
- rmesa->dma.current.start = 0;
- rmesa->dma.current.ptr = 0;
-
- rmesa->c_vertexBuffers++;
-}
-
-void radeonReleaseDmaRegion( radeonContextPtr rmesa,
- struct radeon_dma_region *region,
- const char *caller )
-{
- if (RADEON_DEBUG & DEBUG_IOCTL)
- fprintf(stderr, "%s from %s\n", __FUNCTION__, caller);
-
- if (!region->buf)
- return;
-
- if (rmesa->dma.flush)
- rmesa->dma.flush( rmesa );
-
- if (--region->buf->refcount == 0) {
- drm_radeon_cmd_header_t *cmd;
-
- if (RADEON_DEBUG & (DEBUG_IOCTL|DEBUG_DMA))
- fprintf(stderr, "%s -- DISCARD BUF %d\n", __FUNCTION__,
- region->buf->buf->idx);
-
- cmd = (drm_radeon_cmd_header_t *)radeonAllocCmdBuf( rmesa, sizeof(*cmd),
- __FUNCTION__ );
- cmd->dma.cmd_type = RADEON_CMD_DMA_DISCARD;
- cmd->dma.buf_idx = region->buf->buf->idx;
- FREE(region->buf);
- rmesa->dma.nr_released_bufs++;
- }
-
- region->buf = NULL;
- region->start = 0;
-}
-
-/* Allocates a region from rmesa->dma.current. If there isn't enough
- * space in current, grab a new buffer (and discard what was left of current)
- */
-void radeonAllocDmaRegion( radeonContextPtr rmesa,
- struct radeon_dma_region *region,
- int bytes,
- int alignment )
-{
- if (RADEON_DEBUG & DEBUG_IOCTL)
- fprintf(stderr, "%s %d\n", __FUNCTION__, bytes);
-
- if (rmesa->dma.flush)
- rmesa->dma.flush( rmesa );
-
- if (region->buf)
- radeonReleaseDmaRegion( rmesa, region, __FUNCTION__ );
-
- alignment--;
- rmesa->dma.current.start = rmesa->dma.current.ptr =
- (rmesa->dma.current.ptr + alignment) & ~alignment;
-
- if ( rmesa->dma.current.ptr + bytes > rmesa->dma.current.end )
- radeonRefillCurrentDmaRegion( rmesa );
-
- region->start = rmesa->dma.current.start;
- region->ptr = rmesa->dma.current.start;
- region->end = rmesa->dma.current.start + bytes;
- region->address = rmesa->dma.current.address;
- region->buf = rmesa->dma.current.buf;
- region->buf->refcount++;
-
- rmesa->dma.current.ptr += bytes; /* bug - if alignment > 7 */
- rmesa->dma.current.start =
- rmesa->dma.current.ptr = (rmesa->dma.current.ptr + 0x7) & ~0x7;
-}
-
-/* ================================================================
- * SwapBuffers with client-side throttling
- */
-
-static uint32_t radeonGetLastFrame (radeonContextPtr rmesa)
-{
- drm_radeon_getparam_t gp;
- int ret;
- uint32_t frame;
-
- gp.param = RADEON_PARAM_LAST_FRAME;
- gp.value = (int *)&frame;
- ret = drmCommandWriteRead( rmesa->dri.fd, DRM_RADEON_GETPARAM,
- &gp, sizeof(gp) );
-
- if ( ret ) {
- fprintf( stderr, "%s: drm_radeon_getparam_t: %d\n", __FUNCTION__, ret );
- exit(1);
- }
-
- return frame;
-}
-
-static void radeonEmitIrqLocked( radeonContextPtr rmesa )
-{
- drm_radeon_irq_emit_t ie;
- int ret;
-
- ie.irq_seq = &rmesa->iw.irq_seq;
- ret = drmCommandWriteRead( rmesa->dri.fd, DRM_RADEON_IRQ_EMIT,
- &ie, sizeof(ie) );
- if ( ret ) {
- fprintf( stderr, "%s: drm_radeon_irq_emit_t: %d\n", __FUNCTION__, ret );
- exit(1);
- }
-}
-
-
-static void radeonWaitIrq( radeonContextPtr rmesa )
-{
- int ret;
-
- do {
- ret = drmCommandWrite( rmesa->dri.fd, DRM_RADEON_IRQ_WAIT,
- &rmesa->iw, sizeof(rmesa->iw) );
- } while (ret && (errno == EINTR || errno == EBUSY));
-
- if ( ret ) {
- fprintf( stderr, "%s: drmRadeonIrqWait: %d\n", __FUNCTION__, ret );
- exit(1);
- }
-}
-
-
-static void radeonWaitForFrameCompletion( radeonContextPtr rmesa )
-{
- drm_radeon_sarea_t *sarea = rmesa->sarea;
-
- if (rmesa->do_irqs) {
- if (radeonGetLastFrame(rmesa) < sarea->last_frame) {
- if (!rmesa->irqsEmitted) {
- while (radeonGetLastFrame (rmesa) < sarea->last_frame)
- ;
- }
- else {
- UNLOCK_HARDWARE( rmesa );
- radeonWaitIrq( rmesa );
- LOCK_HARDWARE( rmesa );
- }
- rmesa->irqsEmitted = 10;