-
-static void r200WaitForIdle( r200ContextPtr rmesa );
-
-
-/* At this point we were in FlushCmdBufLocked but we had lost our context, so
- * we need to unwire our current cmdbuf, hook the one with the saved state in
- * it, flush it, and then put the current one back. This is so commands at the
- * start of a cmdbuf can rely on the state being kept from the previous one.
- */
-static void r200BackUpAndEmitLostStateLocked( r200ContextPtr rmesa )
-{
- GLuint nr_released_bufs;
- struct r200_store saved_store;
-
- if (rmesa->backup_store.cmd_used == 0)
- return;
-
- if (R200_DEBUG & DEBUG_STATE)
- fprintf(stderr, "Emitting backup state on lost context\n");
-
- rmesa->lost_context = GL_FALSE;
-
- nr_released_bufs = rmesa->dma.nr_released_bufs;
- saved_store = rmesa->store;
- rmesa->dma.nr_released_bufs = 0;
- rmesa->store = rmesa->backup_store;
- r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
- rmesa->dma.nr_released_bufs = nr_released_bufs;
- rmesa->store = saved_store;
-}
-
-int r200FlushCmdBufLocked( r200ContextPtr rmesa, const char * caller )
-{
- int ret, i;
- drm_radeon_cmd_buffer_t cmd;
-
- if (rmesa->lost_context)
- r200BackUpAndEmitLostStateLocked( rmesa );
-
- if (R200_DEBUG & DEBUG_IOCTL) {
- fprintf(stderr, "%s from %s\n", __FUNCTION__, caller);
-
- if (0 & R200_DEBUG & DEBUG_VERBOSE)
- for (i = 0 ; i < rmesa->store.cmd_used ; i += 4 )
- fprintf(stderr, "%d: %x\n", i/4,
- *(int *)(&rmesa->store.cmd_buf[i]));
- }
-
- if (R200_DEBUG & DEBUG_DMA)
- fprintf(stderr, "%s: Releasing %d buffers\n", __FUNCTION__,
- rmesa->dma.nr_released_bufs);
-
-
- if (R200_DEBUG & DEBUG_SANITY) {
- if (rmesa->state.scissor.enabled)
- ret = r200SanityCmdBuffer( rmesa,
- rmesa->state.scissor.numClipRects,
- rmesa->state.scissor.pClipRects);
- else
- ret = r200SanityCmdBuffer( rmesa,
- rmesa->numClipRects,
- rmesa->pClipRects);
- if (ret) {
- fprintf(stderr, "drmSanityCommandWrite: %d\n", ret);
- goto out;
- }
- }
-
-
- if (R200_DEBUG & DEBUG_MEMORY) {
- if (! driValidateTextureHeaps( rmesa->texture_heaps, rmesa->nr_heaps,
- & rmesa->swapped ) ) {
- fprintf( stderr, "%s: texture memory is inconsistent - expect "
- "mangled textures\n", __FUNCTION__ );
- }
- }
-
-
- cmd.bufsz = rmesa->store.cmd_used;
- cmd.buf = rmesa->store.cmd_buf;
-
- if (rmesa->state.scissor.enabled) {
- cmd.nbox = rmesa->state.scissor.numClipRects;
- cmd.boxes = (drm_clip_rect_t *)rmesa->state.scissor.pClipRects;
- } else {
- cmd.nbox = rmesa->numClipRects;
- cmd.boxes = (drm_clip_rect_t *)rmesa->pClipRects;
- }
-
- ret = drmCommandWrite( rmesa->dri.fd,
- DRM_RADEON_CMDBUF,
- &cmd, sizeof(cmd) );
-
- if (ret)
- fprintf(stderr, "drmCommandWrite: %d\n", ret);
-
- if (R200_DEBUG & DEBUG_SYNC) {
- fprintf(stderr, "\nSyncing in %s\n\n", __FUNCTION__);
- r200WaitForIdleLocked( 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
- * r200AllocCmdBuf.
- */
-void r200FlushCmdBuf( r200ContextPtr rmesa, const char *caller )
-{
- int ret;
-
- LOCK_HARDWARE( rmesa );
-
- ret = r200FlushCmdBufLocked( rmesa, caller );
-
- UNLOCK_HARDWARE( rmesa );
-
- if (ret) {
- fprintf(stderr, "drmRadeonCmdBuffer: %d (exiting)\n", ret);
- exit(ret);
- }
-}
-
-
-/* =============================================================
- * Hardware vertex buffer handling
- */
-
-
-void r200RefillCurrentDmaRegion( r200ContextPtr rmesa )
-{
- struct r200_dma_buffer *dmabuf;
- int fd = rmesa->dri.fd;
- int index = 0;
- int size = 0;
- drmDMAReq dma;
- int ret;
-
- if (R200_DEBUG & (DEBUG_IOCTL|DEBUG_DMA))
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (rmesa->dma.flush) {
- rmesa->dma.flush( rmesa );
- }
-
- if (rmesa->dma.current.buf)
- r200ReleaseDmaRegion( rmesa, &rmesa->dma.current, __FUNCTION__ );
-
- if (rmesa->dma.nr_released_bufs > 4)
- r200FlushCmdBuf( 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 */
-
- while (1) {
- ret = drmDMA( fd, &dma );
- if (ret == 0)
- break;
-
- if (rmesa->dma.nr_released_bufs) {
- r200FlushCmdBufLocked( rmesa, __FUNCTION__ );
- }
-
- if (rmesa->do_usleeps) {
- UNLOCK_HARDWARE( rmesa );
- DO_USLEEP( 1 );
- LOCK_HARDWARE( rmesa );
- }
- }
-
- UNLOCK_HARDWARE(rmesa);
-
- if (R200_DEBUG & DEBUG_DMA)
- fprintf(stderr, "Allocated buffer %d\n", index);
-
- dmabuf = CALLOC_STRUCT( r200_dma_buffer );
- dmabuf->buf = &rmesa->r200Screen->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;
-}
-
-void r200ReleaseDmaRegion( r200ContextPtr rmesa,
- struct r200_dma_region *region,
- const char *caller )
-{
- if (R200_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 (R200_DEBUG & (DEBUG_IOCTL|DEBUG_DMA))
- fprintf(stderr, "%s -- DISCARD BUF %d\n", __FUNCTION__,
- region->buf->buf->idx);
-
- cmd = (drm_radeon_cmd_header_t *)r200AllocCmdBuf( 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 r200AllocDmaRegion( r200ContextPtr rmesa,
- struct r200_dma_region *region,
- int bytes,
- int alignment )
-{
- if (R200_DEBUG & DEBUG_IOCTL)
- fprintf(stderr, "%s %d\n", __FUNCTION__, bytes);
-
- if (rmesa->dma.flush)
- rmesa->dma.flush( rmesa );
-
- if (region->buf)
- r200ReleaseDmaRegion( 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 )
- r200RefillCurrentDmaRegion( 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;
-
- assert( rmesa->dma.current.ptr <= rmesa->dma.current.end );
-}
-
-/* ================================================================
- * SwapBuffers with client-side throttling
- */
-
-static uint32_t r200GetLastFrame(r200ContextPtr 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: drmRadeonGetParam: %d\n", __FUNCTION__, ret );
- exit(1);
- }
-
- return frame;
-}
-
-static void r200EmitIrqLocked( r200ContextPtr 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: drmRadeonIrqEmit: %d\n", __FUNCTION__, ret );
- exit(1);
- }
-}
-
-
-static void r200WaitIrq( r200ContextPtr 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 r200WaitForFrameCompletion( r200ContextPtr rmesa )
-{
- drm_radeon_sarea_t *sarea = rmesa->sarea;
-
- if (rmesa->do_irqs) {
- if (r200GetLastFrame(rmesa) < sarea->last_frame) {
- if (!rmesa->irqsEmitted) {
- while (r200GetLastFrame (rmesa) < sarea->last_frame)
- ;
- }
- else {
- UNLOCK_HARDWARE( rmesa );
- r200WaitIrq( rmesa );
- LOCK_HARDWARE( rmesa );
- }
- rmesa->irqsEmitted = 10;
- }
-
- if (rmesa->irqsEmitted) {
- r200EmitIrqLocked( rmesa );
- rmesa->irqsEmitted--;
- }
- }
- else {
- while (r200GetLastFrame (rmesa) < sarea->last_frame) {
- UNLOCK_HARDWARE( rmesa );
- if (rmesa->do_usleeps)
- DO_USLEEP( 1 );
- LOCK_HARDWARE( rmesa );
- }
- }
-}
-
-
-
-/* Copy the back color buffer to the front color buffer.
- */
-void r200CopyBuffer( const __DRIdrawablePrivate *dPriv,
- const drm_clip_rect_t *rect)
-{
- r200ContextPtr rmesa;
- GLint nbox, i, ret;
- GLboolean missed_target;
- int64_t ust;
-
- assert(dPriv);
- assert(dPriv->driContextPriv);
- assert(dPriv->driContextPriv->driverPrivate);
-
- rmesa = (r200ContextPtr) dPriv->driContextPriv->driverPrivate;
-
- if ( R200_DEBUG & DEBUG_IOCTL ) {
- fprintf( stderr, "\n%s( %p )\n\n", __FUNCTION__, (void *)rmesa->glCtx );
- }
-
- R200_FIREVERTICES( rmesa );
-
- LOCK_HARDWARE( rmesa );
-
-
- /* Throttle the frame rate -- only allow one pending swap buffers
- * request at a time.
- */
- r200WaitForFrameCompletion( rmesa );
- if (!rect)
- {
- UNLOCK_HARDWARE( rmesa );
- driWaitForVBlank( dPriv, & rmesa->vbl_seq, rmesa->vblank_flags, & missed_target );
- LOCK_HARDWARE( rmesa );
- }
-
- nbox = dPriv->numClipRects; /* must be in locked region */
-
- for ( i = 0 ; i < nbox ; ) {
- GLint nr = MIN2( i + RADEON_NR_SAREA_CLIPRECTS , nbox );
- drm_clip_rect_t *box = dPriv->pClipRects;
- drm_clip_rect_t *b = rmesa->sarea->boxes;
- GLint n = 0;
-
- for ( ; i < nr ; i++ ) {
-
- *b = box[i];
-
- if (rect)
- {
- if (rect->x1 > b->x1)
- b->x1 = rect->x1;
- if (rect->y1 > b->y1)
- b->y1 = rect->y1;
- if (rect->x2 < b->x2)
- b->x2 = rect->x2;
- if (rect->y2 < b->y2)
- b->y2 = rect->y2;
-
- if (b->x1 < b->x2 && b->y1 < b->y2)
- b++;
- }
- else
- b++;
-
- n++;
- }
- rmesa->sarea->nbox = n;
-
- ret = drmCommandNone( rmesa->dri.fd, DRM_RADEON_SWAP );
-
- if ( ret ) {
- fprintf( stderr, "DRM_R200_SWAP_BUFFERS: return = %d\n", ret );
- UNLOCK_HARDWARE( rmesa );
- exit( 1 );
- }
- }
-
- UNLOCK_HARDWARE( rmesa );
- if (!rect)
- {
- rmesa->hw.all_dirty = GL_TRUE;
-
- rmesa->swap_count++;
- (*dri_interface->getUST)( & ust );
- if ( missed_target ) {
- rmesa->swap_missed_count++;
- rmesa->swap_missed_ust = ust - rmesa->swap_ust;
- }
-
- rmesa->swap_ust = ust;
-
- sched_yield();
- }
-}
-
-void r200PageFlip( const __DRIdrawablePrivate *dPriv )