53 int mga_do_wait_for_idle(drm_mga_private_t *dev_priv)  in mga_do_wait_for_idle()  argument
59 	for (i = 0; i < dev_priv->usec_timeout; i++) {  in mga_do_wait_for_idle()
75 static int mga_do_dma_reset(drm_mga_private_t *dev_priv)  in mga_do_dma_reset()  argument
77 	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;  in mga_do_dma_reset()
78 	drm_mga_primary_buffer_t *primary = &dev_priv->prim;  in mga_do_dma_reset()
103 void mga_do_dma_flush(drm_mga_private_t *dev_priv)  in mga_do_dma_flush()  argument
105 	drm_mga_primary_buffer_t *primary = &dev_priv->prim;  in mga_do_dma_flush()
113 	for (i = 0; i < dev_priv->usec_timeout; i++) {  in mga_do_dma_flush()
125 	tail = primary->tail + dev_priv->primary->offset;  in mga_do_dma_flush()
148 	DRM_DEBUG("   head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));  in mga_do_dma_flush()
149 	DRM_DEBUG("   tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset));  in mga_do_dma_flush()
153 	MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access);  in mga_do_dma_flush()
158 void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv)  in mga_do_dma_wrap_start()  argument
160 	drm_mga_primary_buffer_t *primary = &dev_priv->prim;  in mga_do_dma_wrap_start()
173 	tail = primary->tail + dev_priv->primary->offset;  in mga_do_dma_wrap_start()
181 	if (head == dev_priv->primary->offset)  in mga_do_dma_wrap_start()
184 		primary->space = head - dev_priv->primary->offset;  in mga_do_dma_wrap_start()
186 	DRM_DEBUG("   head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset));  in mga_do_dma_wrap_start()
192 	MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access);  in mga_do_dma_wrap_start()
198 void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv)  in mga_do_dma_wrap_end()  argument
200 	drm_mga_primary_buffer_t *primary = &dev_priv->prim;  in mga_do_dma_wrap_end()
201 	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;  in mga_do_dma_wrap_end()
202 	u32 head = dev_priv->primary->offset;  in mga_do_dma_wrap_end()
225 	drm_mga_private_t *dev_priv = dev->dev_private;  in mga_freelist_print()  local
230 		 dev_priv->sarea_priv->last_dispatch,  in mga_freelist_print()
232 				dev_priv->primary->offset));  in mga_freelist_print()
235 	for (entry = dev_priv->head->next; entry; entry = entry->next) {  in mga_freelist_print()
238 			 (unsigned long)(entry->age.head - dev_priv->primary->offset));  in mga_freelist_print()
244 static int mga_freelist_init(struct drm_device *dev, drm_mga_private_t *dev_priv)  in mga_freelist_init()  argument
253 	dev_priv->head = kzalloc(sizeof(drm_mga_freelist_t), GFP_KERNEL);  in mga_freelist_init()
254 	if (dev_priv->head == NULL)  in mga_freelist_init()
257 	SET_AGE(&dev_priv->head->age, MGA_BUFFER_USED, 0);  in mga_freelist_init()
267 		entry->next = dev_priv->head->next;  in mga_freelist_init()
268 		entry->prev = dev_priv->head;  in mga_freelist_init()
272 		if (dev_priv->head->next != NULL)  in mga_freelist_init()
273 			dev_priv->head->next->prev = entry;  in mga_freelist_init()
275 			dev_priv->tail = entry;  in mga_freelist_init()
281 		dev_priv->head->next = entry;  in mga_freelist_init()
289 	drm_mga_private_t *dev_priv = dev->dev_private;  in mga_freelist_cleanup()  local
294 	entry = dev_priv->head;  in mga_freelist_cleanup()
301 	dev_priv->head = dev_priv->tail = NULL;  in mga_freelist_cleanup()
324 	drm_mga_private_t *dev_priv = dev->dev_private;  in mga_freelist_get()  local
327 	drm_mga_freelist_t *tail = dev_priv->tail;  in mga_freelist_get()
332 	wrap = dev_priv->sarea_priv->last_wrap;  in mga_freelist_get()
336 		  (unsigned long)(tail->age.head - dev_priv->primary->offset) : 0,  in mga_freelist_get()
339 		  (unsigned long)(head - dev_priv->primary->offset), wrap);  in mga_freelist_get()
342 		prev = dev_priv->tail->prev;  in mga_freelist_get()
343 		next = dev_priv->tail;  in mga_freelist_get()
346 		dev_priv->tail = prev;  in mga_freelist_get()
357 	drm_mga_private_t *dev_priv = dev->dev_private;  in mga_freelist_put()  local
363 				  dev_priv->primary->offset),  in mga_freelist_put()
367 	head = dev_priv->head;  in mga_freelist_put()
371 		prev = dev_priv->tail;  in mga_freelist_put()
393 	drm_mga_private_t *dev_priv;  in mga_driver_load()  local
414 	dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL);  in mga_driver_load()
415 	if (!dev_priv)  in mga_driver_load()
418 	dev->dev_private = (void *)dev_priv;  in mga_driver_load()
420 	dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT;  in mga_driver_load()
421 	dev_priv->chipset = flags;  in mga_driver_load()
425 	dev_priv->mmio_base = pci_resource_start(pdev, 1);  in mga_driver_load()
426 	dev_priv->mmio_size = pci_resource_len(pdev, 1);  in mga_driver_load()
457 	drm_mga_private_t *const dev_priv =  in mga_do_agp_dma_bootstrap()  local
495 	if (dev_priv->chipset == MGA_CARD_TYPE_G200) {  in mga_do_agp_dma_bootstrap()
507 		dev_priv->agp_size = 0;  in mga_do_agp_dma_bootstrap()
513 	dev_priv->agp_size = agp_size;  in mga_do_agp_dma_bootstrap()
514 	dev_priv->agp_handle = agp_req.handle;  in mga_do_agp_dma_bootstrap()
532 				_DRM_AGP, _DRM_READ_ONLY, &dev_priv->warp);  in mga_do_agp_dma_bootstrap()
540 				_DRM_AGP, _DRM_READ_ONLY, &dev_priv->primary);  in mga_do_agp_dma_bootstrap()
582 				_DRM_AGP, 0, &dev_priv->agp_textures);  in mga_do_agp_dma_bootstrap()
588 	drm_legacy_ioremap(dev_priv->warp, dev);  in mga_do_agp_dma_bootstrap()
589 	drm_legacy_ioremap(dev_priv->primary, dev);  in mga_do_agp_dma_bootstrap()
592 	if (!dev_priv->warp->handle ||  in mga_do_agp_dma_bootstrap()
593 	    !dev_priv->primary->handle || !dev->agp_buffer_map->handle) {  in mga_do_agp_dma_bootstrap()
595 			  dev_priv->warp->handle, dev_priv->primary->handle,  in mga_do_agp_dma_bootstrap()
600 	dev_priv->dma_access = MGA_PAGPXFER;  in mga_do_agp_dma_bootstrap()
601 	dev_priv->wagp_enable = MGA_WAGP_ENABLE;  in mga_do_agp_dma_bootstrap()
631 	drm_mga_private_t *const dev_priv =  in mga_do_pci_dma_bootstrap()  local
652 				_DRM_READ_ONLY, &dev_priv->warp);  in mga_do_pci_dma_bootstrap()
668 					_DRM_READ_ONLY, &dev_priv->primary);  in mga_do_pci_dma_bootstrap()
678 	if (dev_priv->primary->size != dma_bs->primary_size) {  in mga_do_pci_dma_bootstrap()
681 			 (unsigned)dev_priv->primary->size);  in mga_do_pci_dma_bootstrap()
682 		dma_bs->primary_size = dev_priv->primary->size;  in mga_do_pci_dma_bootstrap()
708 	dev_priv->dma_access = 0;  in mga_do_pci_dma_bootstrap()
709 	dev_priv->wagp_enable = 0;  in mga_do_pci_dma_bootstrap()
722 	drm_mga_private_t *const dev_priv =  in mga_do_dma_bootstrap()  local
725 	dev_priv->used_new_dma_init = 1;  in mga_do_dma_bootstrap()
730 	err = drm_legacy_addmap(dev, dev_priv->mmio_base, dev_priv->mmio_size,  in mga_do_dma_bootstrap()
732 				&dev_priv->mmio);  in mga_do_dma_bootstrap()
740 			 &dev_priv->status);  in mga_do_dma_bootstrap()
781 	const drm_mga_private_t *const dev_priv =  in mga_dma_bootstrap()  local
790 	if (dev_priv->agp_textures != NULL) {  in mga_dma_bootstrap()
791 		bootstrap->texture_handle = dev_priv->agp_textures->offset;  in mga_dma_bootstrap()
792 		bootstrap->texture_size = dev_priv->agp_textures->size;  in mga_dma_bootstrap()
805 	drm_mga_private_t *dev_priv;  in mga_do_init_dma()  local
809 	dev_priv = dev->dev_private;  in mga_do_init_dma()
812 		dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK;  in mga_do_init_dma()
814 		dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR;  in mga_do_init_dma()
815 	dev_priv->maccess = init->maccess;  in mga_do_init_dma()
817 	dev_priv->fb_cpp = init->fb_cpp;  in mga_do_init_dma()
818 	dev_priv->front_offset = init->front_offset;  in mga_do_init_dma()
819 	dev_priv->front_pitch = init->front_pitch;  in mga_do_init_dma()
820 	dev_priv->back_offset = init->back_offset;  in mga_do_init_dma()
821 	dev_priv->back_pitch = init->back_pitch;  in mga_do_init_dma()
823 	dev_priv->depth_cpp = init->depth_cpp;  in mga_do_init_dma()
824 	dev_priv->depth_offset = init->depth_offset;  in mga_do_init_dma()
825 	dev_priv->depth_pitch = init->depth_pitch;  in mga_do_init_dma()
829 	dev_priv->texture_offset = init->texture_offset[0];  in mga_do_init_dma()
830 	dev_priv->texture_size = init->texture_size[0];  in mga_do_init_dma()
832 	dev_priv->sarea = drm_legacy_getsarea(dev);  in mga_do_init_dma()
833 	if (!dev_priv->sarea) {  in mga_do_init_dma()
838 	if (!dev_priv->used_new_dma_init) {  in mga_do_init_dma()
840 		dev_priv->dma_access = MGA_PAGPXFER;  in mga_do_init_dma()
841 		dev_priv->wagp_enable = MGA_WAGP_ENABLE;  in mga_do_init_dma()
843 		dev_priv->status = drm_legacy_findmap(dev, init->status_offset);  in mga_do_init_dma()
844 		if (!dev_priv->status) {  in mga_do_init_dma()
848 		dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);  in mga_do_init_dma()
849 		if (!dev_priv->mmio) {  in mga_do_init_dma()
853 		dev_priv->warp = drm_legacy_findmap(dev, init->warp_offset);  in mga_do_init_dma()
854 		if (!dev_priv->warp) {  in mga_do_init_dma()
858 		dev_priv->primary = drm_legacy_findmap(dev, init->primary_offset);  in mga_do_init_dma()
859 		if (!dev_priv->primary) {  in mga_do_init_dma()
871 		drm_legacy_ioremap(dev_priv->warp, dev);  in mga_do_init_dma()
872 		drm_legacy_ioremap(dev_priv->primary, dev);  in mga_do_init_dma()
876 	dev_priv->sarea_priv =  in mga_do_init_dma()
877 	    (drm_mga_sarea_t *) ((u8 *) dev_priv->sarea->handle +  in mga_do_init_dma()
880 	if (!dev_priv->warp->handle ||  in mga_do_init_dma()
881 	    !dev_priv->primary->handle ||  in mga_do_init_dma()
882 	    ((dev_priv->dma_access != 0) &&  in mga_do_init_dma()
889 	ret = mga_warp_install_microcode(dev_priv);  in mga_do_init_dma()
895 	ret = mga_warp_init(dev_priv);  in mga_do_init_dma()
901 	dev_priv->prim.status = (u32 *) dev_priv->status->handle;  in mga_do_init_dma()
903 	mga_do_wait_for_idle(dev_priv);  in mga_do_init_dma()
907 	MGA_WRITE(MGA_PRIMADDRESS, dev_priv->primary->offset | MGA_DMA_GENERAL);  in mga_do_init_dma()
909 …MGA_WRITE(MGA_PRIMPTR, virt_to_bus((void *)dev_priv->prim.status) | MGA_PRIMPTREN0 |	/* Soft trap,…  in mga_do_init_dma()
913 	dev_priv->prim.start = (u8 *) dev_priv->primary->handle;  in mga_do_init_dma()
914 	dev_priv->prim.end = ((u8 *) dev_priv->primary->handle  in mga_do_init_dma()
915 			      + dev_priv->primary->size);  in mga_do_init_dma()
916 	dev_priv->prim.size = dev_priv->primary->size;  in mga_do_init_dma()
918 	dev_priv->prim.tail = 0;  in mga_do_init_dma()
919 	dev_priv->prim.space = dev_priv->prim.size;  in mga_do_init_dma()
920 	dev_priv->prim.wrapped = 0;  in mga_do_init_dma()
922 	dev_priv->prim.last_flush = 0;  in mga_do_init_dma()
923 	dev_priv->prim.last_wrap = 0;  in mga_do_init_dma()
925 	dev_priv->prim.high_mark = 256 * DMA_BLOCK_SIZE;  in mga_do_init_dma()
927 	dev_priv->prim.status[0] = dev_priv->primary->offset;  in mga_do_init_dma()
928 	dev_priv->prim.status[1] = 0;  in mga_do_init_dma()
930 	dev_priv->sarea_priv->last_wrap = 0;  in mga_do_init_dma()
931 	dev_priv->sarea_priv->last_frame.head = 0;  in mga_do_init_dma()
932 	dev_priv->sarea_priv->last_frame.wrap = 0;  in mga_do_init_dma()
934 	if (mga_freelist_init(dev, dev_priv) < 0) {  in mga_do_init_dma()
955 		drm_mga_private_t *dev_priv = dev->dev_private;  in mga_do_cleanup_dma()  local
957 		if ((dev_priv->warp != NULL)  in mga_do_cleanup_dma()
958 		    && (dev_priv->warp->type != _DRM_CONSISTENT))  in mga_do_cleanup_dma()
959 			drm_legacy_ioremapfree(dev_priv->warp, dev);  in mga_do_cleanup_dma()
961 		if ((dev_priv->primary != NULL)  in mga_do_cleanup_dma()
962 		    && (dev_priv->primary->type != _DRM_CONSISTENT))  in mga_do_cleanup_dma()
963 			drm_legacy_ioremapfree(dev_priv->primary, dev);  in mga_do_cleanup_dma()
968 		if (dev_priv->used_new_dma_init) {  in mga_do_cleanup_dma()
970 			if (dev_priv->agp_handle != 0) {  in mga_do_cleanup_dma()
974 				unbind_req.handle = dev_priv->agp_handle;  in mga_do_cleanup_dma()
977 				free_req.handle = dev_priv->agp_handle;  in mga_do_cleanup_dma()
980 				dev_priv->agp_textures = NULL;  in mga_do_cleanup_dma()
981 				dev_priv->agp_size = 0;  in mga_do_cleanup_dma()
982 				dev_priv->agp_handle = 0;  in mga_do_cleanup_dma()
990 		dev_priv->warp = NULL;  in mga_do_cleanup_dma()
991 		dev_priv->primary = NULL;  in mga_do_cleanup_dma()
992 		dev_priv->sarea = NULL;  in mga_do_cleanup_dma()
993 		dev_priv->sarea_priv = NULL;  in mga_do_cleanup_dma()
997 			dev_priv->mmio = NULL;  in mga_do_cleanup_dma()
998 			dev_priv->status = NULL;  in mga_do_cleanup_dma()
999 			dev_priv->used_new_dma_init = 0;  in mga_do_cleanup_dma()
1002 		memset(&dev_priv->prim, 0, sizeof(dev_priv->prim));  in mga_do_cleanup_dma()
1003 		dev_priv->warp_pipe = 0;  in mga_do_cleanup_dma()
1004 		memset(dev_priv->warp_pipe_phys, 0,  in mga_do_cleanup_dma()
1005 		       sizeof(dev_priv->warp_pipe_phys));  in mga_do_cleanup_dma()
1007 		if (dev_priv->head != NULL)  in mga_do_cleanup_dma()
1042 	drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;  in mga_dma_flush()  local
1052 	WRAP_WAIT_WITH_RETURN(dev_priv);  in mga_dma_flush()
1055 		mga_do_dma_flush(dev_priv);  in mga_dma_flush()
1059 		int ret = mga_do_wait_for_idle(dev_priv);  in mga_dma_flush()
1064 		return mga_do_wait_for_idle(dev_priv);  in mga_dma_flush()
1074 	drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;  in mga_dma_reset()  local
1078 	return mga_do_dma_reset(dev_priv);  in mga_dma_reset()
1114 	drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;  in mga_dma_buffers()  local
1137 	WRAP_TEST_WITH_RETURN(dev_priv);  in mga_dma_buffers()
1166 	drm_mga_private_t *dev_priv = dev->dev_private;  in mga_driver_dma_quiescent()  local
1167 	return mga_do_wait_for_idle(dev_priv);  in mga_driver_dma_quiescent()