135 	struct mdev_state *mdev_state;  member
141 struct mdev_state {  struct
181 static struct page *__mbochs_get_page(struct mdev_state *mdev_state,
183 static struct page *mbochs_get_page(struct mdev_state *mdev_state,
196 static void mbochs_create_config_space(struct mdev_state *mdev_state)  in mbochs_create_config_space()  argument
198 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_VENDOR_ID],  in mbochs_create_config_space()
200 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_DEVICE_ID],  in mbochs_create_config_space()
202 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_SUBSYSTEM_VENDOR_ID],  in mbochs_create_config_space()
204 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_SUBSYSTEM_ID],  in mbochs_create_config_space()
207 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_COMMAND],  in mbochs_create_config_space()
209 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_CLASS_DEVICE],  in mbochs_create_config_space()
211 	mdev_state->vconfig[PCI_CLASS_REVISION] =  0x01;  in mbochs_create_config_space()
213 	STORE_LE32((u32 *) &mdev_state->vconfig[PCI_BASE_ADDRESS_0],  in mbochs_create_config_space()
217 	mdev_state->bar_mask[0] = ~(mdev_state->memsize) + 1;  in mbochs_create_config_space()
219 	STORE_LE32((u32 *) &mdev_state->vconfig[PCI_BASE_ADDRESS_2],  in mbochs_create_config_space()
222 	mdev_state->bar_mask[2] = ~(MBOCHS_MMIO_BAR_SIZE) + 1;  in mbochs_create_config_space()
225 static int mbochs_check_framebuffer(struct mdev_state *mdev_state,  in mbochs_check_framebuffer()  argument
228 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_check_framebuffer()
229 	u16 *vbe = mdev_state->vbe;  in mbochs_check_framebuffer()
232 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_check_framebuffer()
264 	if (mode->offset + mode->size > mdev_state->memsize) {  in mbochs_check_framebuffer()
283 static void handle_pci_cfg_write(struct mdev_state *mdev_state, u16 offset,  in handle_pci_cfg_write()  argument
286 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_pci_cfg_write()
296 			cfg_addr = (cfg_addr & mdev_state->bar_mask[index]);  in handle_pci_cfg_write()
304 		cfg_addr |= (mdev_state->vconfig[offset] &  in handle_pci_cfg_write()
306 		STORE_LE32(&mdev_state->vconfig[offset], cfg_addr);  in handle_pci_cfg_write()
311 static void handle_mmio_write(struct mdev_state *mdev_state, u16 offset,  in handle_mmio_write()  argument
314 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_mmio_write()
326 		if (index < ARRAY_SIZE(mdev_state->vbe))  in handle_mmio_write()
327 			mdev_state->vbe[index] = reg16;  in handle_mmio_write()
341 static void handle_mmio_read(struct mdev_state *mdev_state, u16 offset,  in handle_mmio_read()  argument
344 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_mmio_read()
353 		if (index < ARRAY_SIZE(mdev_state->vbe))  in handle_mmio_read()
354 			reg16 = mdev_state->vbe[index];  in handle_mmio_read()
371 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mdev_access()  local
378 	mutex_lock(&mdev_state->ops_lock);  in mdev_access()
382 			handle_pci_cfg_write(mdev_state, pos, buf, count);  in mdev_access()
384 			memcpy(buf, (mdev_state->vconfig + pos), count);  in mdev_access()
390 			handle_mmio_write(mdev_state, pos, buf, count);  in mdev_access()
392 			handle_mmio_read(mdev_state, pos, buf, count);  in mdev_access()
396 		   MBOCHS_MEMORY_BAR_OFFSET + mdev_state->memsize) {  in mdev_access()
399 		pg = __mbochs_get_page(mdev_state, pos >> PAGE_SHIFT);  in mdev_access()
419 	mutex_unlock(&mdev_state->ops_lock);  in mdev_access()
426 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_reset()  local
427 	u32 size64k = mdev_state->memsize / (64 * 1024);  in mbochs_reset()
430 	for (i = 0; i < ARRAY_SIZE(mdev_state->vbe); i++)  in mbochs_reset()
431 		mdev_state->vbe[i] = 0;  in mbochs_reset()
432 	mdev_state->vbe[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID5;  in mbochs_reset()
433 	mdev_state->vbe[VBE_DISPI_INDEX_VIDEO_MEMORY_64K] = size64k;  in mbochs_reset()
441 	struct mdev_state *mdev_state;  in mbochs_create()  local
448 	mdev_state = kzalloc(sizeof(struct mdev_state), GFP_KERNEL);  in mbochs_create()
449 	if (mdev_state == NULL)  in mbochs_create()
452 	mdev_state->vconfig = kzalloc(MBOCHS_CONFIG_SPACE_SIZE, GFP_KERNEL);  in mbochs_create()
453 	if (mdev_state->vconfig == NULL)  in mbochs_create()
456 	mdev_state->memsize = type->mbytes * 1024 * 1024;  in mbochs_create()
457 	mdev_state->pagecount = mdev_state->memsize >> PAGE_SHIFT;  in mbochs_create()
458 	mdev_state->pages = kcalloc(mdev_state->pagecount,  in mbochs_create()
461 	if (!mdev_state->pages)  in mbochs_create()
465 		 kobj->name, type->mbytes, mdev_state->pagecount);  in mbochs_create()
467 	mutex_init(&mdev_state->ops_lock);  in mbochs_create()
468 	mdev_state->mdev = mdev;  in mbochs_create()
469 	mdev_set_drvdata(mdev, mdev_state);  in mbochs_create()
470 	INIT_LIST_HEAD(&mdev_state->dmabufs);  in mbochs_create()
471 	mdev_state->next_id = 1;  in mbochs_create()
473 	mdev_state->type = type;  in mbochs_create()
474 	mbochs_create_config_space(mdev_state);  in mbochs_create()
481 	kfree(mdev_state->vconfig);  in mbochs_create()
482 	kfree(mdev_state);  in mbochs_create()
488 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_remove()  local
490 	mbochs_used_mbytes -= mdev_state->type->mbytes;  in mbochs_remove()
492 	kfree(mdev_state->pages);  in mbochs_remove()
493 	kfree(mdev_state->vconfig);  in mbochs_remove()
494 	kfree(mdev_state);  in mbochs_remove()
614 static struct page *__mbochs_get_page(struct mdev_state *mdev_state,  in __mbochs_get_page()  argument
617 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in __mbochs_get_page()
619 	if (!mdev_state->pages[pgoff]) {  in __mbochs_get_page()
620 		mdev_state->pages[pgoff] =  in __mbochs_get_page()
622 		if (!mdev_state->pages[pgoff])  in __mbochs_get_page()
626 	get_page(mdev_state->pages[pgoff]);  in __mbochs_get_page()
627 	return mdev_state->pages[pgoff];  in __mbochs_get_page()
630 static struct page *mbochs_get_page(struct mdev_state *mdev_state,  in mbochs_get_page()  argument
635 	if (WARN_ON(pgoff >= mdev_state->pagecount))  in mbochs_get_page()
638 	mutex_lock(&mdev_state->ops_lock);  in mbochs_get_page()
639 	page = __mbochs_get_page(mdev_state, pgoff);  in mbochs_get_page()
640 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_page()
645 static void mbochs_put_pages(struct mdev_state *mdev_state)  in mbochs_put_pages()  argument
647 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_put_pages()
650 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_put_pages()
652 	for (i = 0; i < mdev_state->pagecount; i++) {  in mbochs_put_pages()
653 		if (!mdev_state->pages[i])  in mbochs_put_pages()
655 		put_page(mdev_state->pages[i]);  in mbochs_put_pages()
656 		mdev_state->pages[i] = NULL;  in mbochs_put_pages()
665 	struct mdev_state *mdev_state = vma->vm_private_data;  in mbochs_region_vm_fault()  local
668 	if (page_offset >= mdev_state->pagecount)  in mbochs_region_vm_fault()
671 	vmf->page = mbochs_get_page(mdev_state, page_offset);  in mbochs_region_vm_fault()
684 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_mmap()  local
690 	if (vma->vm_end - vma->vm_start > mdev_state->memsize)  in mbochs_mmap()
696 	vma->vm_private_data = mdev_state;  in mbochs_mmap()
720 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_mmap_dmabuf()
735 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_print_dmabuf()
752 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_map_dmabuf()
781 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_unmap_dmabuf()
792 	struct mdev_state *mdev_state = dmabuf->mdev_state;  in mbochs_release_dmabuf()  local
793 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_release_dmabuf()
801 	mutex_lock(&mdev_state->ops_lock);  in mbochs_release_dmabuf()
805 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_release_dmabuf()
831 static struct mbochs_dmabuf *mbochs_dmabuf_alloc(struct mdev_state *mdev_state,  in mbochs_dmabuf_alloc()  argument
837 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_alloc()
844 	dmabuf->id = mdev_state->next_id++;  in mbochs_dmabuf_alloc()
853 		dmabuf->pages[pg] = __mbochs_get_page(mdev_state,  in mbochs_dmabuf_alloc()
859 	dmabuf->mdev_state = mdev_state;  in mbochs_dmabuf_alloc()
860 	list_add(&dmabuf->next, &mdev_state->dmabufs);  in mbochs_dmabuf_alloc()
875 mbochs_dmabuf_find_by_mode(struct mdev_state *mdev_state,  in mbochs_dmabuf_find_by_mode()  argument
880 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_find_by_mode()
882 	list_for_each_entry(dmabuf, &mdev_state->dmabufs, next)  in mbochs_dmabuf_find_by_mode()
890 mbochs_dmabuf_find_by_id(struct mdev_state *mdev_state, u32 id)  in mbochs_dmabuf_find_by_id()  argument
894 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_find_by_id()
896 	list_for_each_entry(dmabuf, &mdev_state->dmabufs, next)  in mbochs_dmabuf_find_by_id()
905 	struct mdev_state *mdev_state = dmabuf->mdev_state;  in mbochs_dmabuf_export()  local
906 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_dmabuf_export()
910 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_export()
938 	struct mdev_state *mdev_state;  in mbochs_get_region_info()  local
940 	mdev_state = mdev_get_drvdata(mdev);  in mbochs_get_region_info()
941 	if (!mdev_state)  in mbochs_get_region_info()
956 		region_info->size   = mdev_state->memsize;  in mbochs_get_region_info()
995 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_query_gfx_plane()  local
1017 	mutex_lock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1021 		ret = mbochs_check_framebuffer(mdev_state, &mode);  in mbochs_query_gfx_plane()
1032 	dmabuf = mbochs_dmabuf_find_by_mode(mdev_state, &mode);  in mbochs_query_gfx_plane()
1034 		mbochs_dmabuf_alloc(mdev_state, &mode);  in mbochs_query_gfx_plane()
1036 		mutex_unlock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1049 	    mdev_state->active_id != plane->dmabuf_id) {  in mbochs_query_gfx_plane()
1051 			mdev_state->active_id, plane->dmabuf_id);  in mbochs_query_gfx_plane()
1052 		mdev_state->active_id = plane->dmabuf_id;  in mbochs_query_gfx_plane()
1054 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1061 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_get_gfx_dmabuf()  local
1064 	mutex_lock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1066 	dmabuf = mbochs_dmabuf_find_by_id(mdev_state, id);  in mbochs_get_gfx_dmabuf()
1068 		mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1075 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1088 	struct mdev_state *mdev_state;  in mbochs_ioctl()  local
1090 	mdev_state = mdev_get_drvdata(mdev);  in mbochs_ioctl()
1109 		memcpy(&mdev_state->dev_info, &info, sizeof(info));  in mbochs_ioctl()
1151 		    (info.index >= mdev_state->dev_info.num_irqs))  in mbochs_ioctl()
1216 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_close()  local
1219 	mutex_lock(&mdev_state->ops_lock);  in mbochs_close()
1221 	list_for_each_entry_safe(dmabuf, tmp, &mdev_state->dmabufs, next) {  in mbochs_close()
1230 	mbochs_put_pages(mdev_state);  in mbochs_close()
1232 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_close()
1241 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in memory_show()  local
1243 	return sprintf(buf, "%d MB\n", mdev_state->type->mbytes);  in memory_show()