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Lines Matching defs:dma

5  * DMA IOCTL and function support
50  * Initialize the DMA data.
68 	dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL);
69 	if (!dev->dma)
73 		memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0]));
79  * Cleanup the DMA resources.
83  * Free all pages associated with DMA buffers, the buffers and pages lists, and
84  * finally the drm_device::dma structure itself.
88 	struct drm_device_dma *dma = dev->dma;
95 	if (!dma)
98 	/* Clear dma buffers */
100 		if (dma->bufs[i].seg_count) {
104 				  dma->bufs[i].buf_count,
105 				  dma->bufs[i].seg_count);
106 			for (j = 0; j < dma->bufs[i].seg_count; j++) {
107 				if (dma->bufs[i].seglist[j]) {
108 					drm_pci_free(dev, dma->bufs[i].seglist[j]);
111 			kfree(dma->bufs[i].seglist);
113 		if (dma->bufs[i].buf_count) {
114 			for (j = 0; j < dma->bufs[i].buf_count; j++) {
115 				kfree(dma->bufs[i].buflist[j].dev_private);
117 			kfree(dma->bufs[i].buflist);
121 	kfree(dma->buflist);
122 	kfree(dma->pagelist);
123 	kfree(dev->dma);
124 	dev->dma = NULL;
156 	struct drm_device_dma *dma = dev->dma;
159 	if (!dma)
161 	for (i = 0; i < dma->buf_count; i++) {
162 		if (dma->buflist[i]->file_priv == file_priv) {
163 			switch (dma->buflist[i]->list) {
165 				drm_legacy_free_buffer(dev, dma->buflist[i]);
168 				dma->buflist[i]->list = DRM_LIST_RECLAIM;