156 	struct mdev_state *mdev_state;  member
162 struct mdev_state {  struct
203 static struct page *__mbochs_get_page(struct mdev_state *mdev_state,
205 static struct page *mbochs_get_page(struct mdev_state *mdev_state,
218 static void mbochs_create_config_space(struct mdev_state *mdev_state)  in mbochs_create_config_space()  argument
220 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_VENDOR_ID],  in mbochs_create_config_space()
222 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_DEVICE_ID],  in mbochs_create_config_space()
224 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_SUBSYSTEM_VENDOR_ID],  in mbochs_create_config_space()
226 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_SUBSYSTEM_ID],  in mbochs_create_config_space()
229 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_COMMAND],  in mbochs_create_config_space()
231 	STORE_LE16((u16 *) &mdev_state->vconfig[PCI_CLASS_DEVICE],  in mbochs_create_config_space()
233 	mdev_state->vconfig[PCI_CLASS_REVISION] =  0x01;  in mbochs_create_config_space()
235 	STORE_LE32((u32 *) &mdev_state->vconfig[PCI_BASE_ADDRESS_0],  in mbochs_create_config_space()
239 	mdev_state->bar_mask[0] = ~(mdev_state->memsize) + 1;  in mbochs_create_config_space()
241 	STORE_LE32((u32 *) &mdev_state->vconfig[PCI_BASE_ADDRESS_2],  in mbochs_create_config_space()
244 	mdev_state->bar_mask[2] = ~(MBOCHS_MMIO_BAR_SIZE) + 1;  in mbochs_create_config_space()
247 static int mbochs_check_framebuffer(struct mdev_state *mdev_state,  in mbochs_check_framebuffer()  argument
250 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_check_framebuffer()
251 	u16 *vbe = mdev_state->vbe;  in mbochs_check_framebuffer()
254 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_check_framebuffer()
286 	if (mode->offset + mode->size > mdev_state->memsize) {  in mbochs_check_framebuffer()
305 static void handle_pci_cfg_write(struct mdev_state *mdev_state, u16 offset,  in handle_pci_cfg_write()  argument
308 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_pci_cfg_write()
318 			cfg_addr = (cfg_addr & mdev_state->bar_mask[index]);  in handle_pci_cfg_write()
326 		cfg_addr |= (mdev_state->vconfig[offset] &  in handle_pci_cfg_write()
328 		STORE_LE32(&mdev_state->vconfig[offset], cfg_addr);  in handle_pci_cfg_write()
333 static void handle_mmio_write(struct mdev_state *mdev_state, u16 offset,  in handle_mmio_write()  argument
336 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_mmio_write()
348 		if (index < ARRAY_SIZE(mdev_state->vbe))  in handle_mmio_write()
349 			mdev_state->vbe[index] = reg16;  in handle_mmio_write()
363 static void handle_mmio_read(struct mdev_state *mdev_state, u16 offset,  in handle_mmio_read()  argument
366 	struct device *dev = mdev_dev(mdev_state->mdev);  in handle_mmio_read()
373 		edid = &mdev_state->edid_regs;  in handle_mmio_read()
379 		memcpy(buf, mdev_state->edid_blob + offset, count);  in handle_mmio_read()
385 		if (index < ARRAY_SIZE(mdev_state->vbe))  in handle_mmio_read()
386 			reg16 = mdev_state->vbe[index];  in handle_mmio_read()
400 static void handle_edid_regs(struct mdev_state *mdev_state, u16 offset,  in handle_edid_regs()  argument
403 	char *regs = (void *)&mdev_state->edid_regs;  in handle_edid_regs()
405 	if (offset + count > sizeof(mdev_state->edid_regs))  in handle_edid_regs()
427 static void handle_edid_blob(struct mdev_state *mdev_state, u16 offset,  in handle_edid_blob()  argument
430 	if (offset + count > mdev_state->edid_regs.edid_max_size)  in handle_edid_blob()
433 		memcpy(mdev_state->edid_blob + offset, buf, count);  in handle_edid_blob()
435 		memcpy(buf, mdev_state->edid_blob + offset, count);  in handle_edid_blob()
441 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mdev_access()  local
448 	mutex_lock(&mdev_state->ops_lock);  in mdev_access()
452 			handle_pci_cfg_write(mdev_state, pos, buf, count);  in mdev_access()
454 			memcpy(buf, (mdev_state->vconfig + pos), count);  in mdev_access()
461 			handle_mmio_write(mdev_state, pos, buf, count);  in mdev_access()
463 			handle_mmio_read(mdev_state, pos, buf, count);  in mdev_access()
470 			handle_edid_regs(mdev_state, pos, buf, count, is_write);  in mdev_access()
473 			handle_edid_blob(mdev_state, pos, buf, count, is_write);  in mdev_access()
478 		   MBOCHS_MEMORY_BAR_OFFSET + mdev_state->memsize) {  in mdev_access()
481 		pg = __mbochs_get_page(mdev_state, pos >> PAGE_SHIFT);  in mdev_access()
501 	mutex_unlock(&mdev_state->ops_lock);  in mdev_access()
508 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_reset()  local
509 	u32 size64k = mdev_state->memsize / (64 * 1024);  in mbochs_reset()
512 	for (i = 0; i < ARRAY_SIZE(mdev_state->vbe); i++)  in mbochs_reset()
513 		mdev_state->vbe[i] = 0;  in mbochs_reset()
514 	mdev_state->vbe[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID5;  in mbochs_reset()
515 	mdev_state->vbe[VBE_DISPI_INDEX_VIDEO_MEMORY_64K] = size64k;  in mbochs_reset()
523 	struct mdev_state *mdev_state;  in mbochs_create()  local
530 	mdev_state = kzalloc(sizeof(struct mdev_state), GFP_KERNEL);  in mbochs_create()
531 	if (mdev_state == NULL)  in mbochs_create()
534 	mdev_state->vconfig = kzalloc(MBOCHS_CONFIG_SPACE_SIZE, GFP_KERNEL);  in mbochs_create()
535 	if (mdev_state->vconfig == NULL)  in mbochs_create()
538 	mdev_state->memsize = type->mbytes * 1024 * 1024;  in mbochs_create()
539 	mdev_state->pagecount = mdev_state->memsize >> PAGE_SHIFT;  in mbochs_create()
540 	mdev_state->pages = kcalloc(mdev_state->pagecount,  in mbochs_create()
543 	if (!mdev_state->pages)  in mbochs_create()
547 		 kobj->name, type->mbytes, mdev_state->pagecount);  in mbochs_create()
549 	mutex_init(&mdev_state->ops_lock);  in mbochs_create()
550 	mdev_state->mdev = mdev;  in mbochs_create()
551 	mdev_set_drvdata(mdev, mdev_state);  in mbochs_create()
552 	INIT_LIST_HEAD(&mdev_state->dmabufs);  in mbochs_create()
553 	mdev_state->next_id = 1;  in mbochs_create()
555 	mdev_state->type = type;  in mbochs_create()
556 	mdev_state->edid_regs.max_xres = type->max_x;  in mbochs_create()
557 	mdev_state->edid_regs.max_yres = type->max_y;  in mbochs_create()
558 	mdev_state->edid_regs.edid_offset = MBOCHS_EDID_BLOB_OFFSET;  in mbochs_create()
559 	mdev_state->edid_regs.edid_max_size = sizeof(mdev_state->edid_blob);  in mbochs_create()
560 	mbochs_create_config_space(mdev_state);  in mbochs_create()
567 	kfree(mdev_state->vconfig);  in mbochs_create()
568 	kfree(mdev_state);  in mbochs_create()
574 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_remove()  local
576 	mbochs_used_mbytes -= mdev_state->type->mbytes;  in mbochs_remove()
578 	kfree(mdev_state->pages);  in mbochs_remove()
579 	kfree(mdev_state->vconfig);  in mbochs_remove()
580 	kfree(mdev_state);  in mbochs_remove()
700 static struct page *__mbochs_get_page(struct mdev_state *mdev_state,  in __mbochs_get_page()  argument
703 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in __mbochs_get_page()
705 	if (!mdev_state->pages[pgoff]) {  in __mbochs_get_page()
706 		mdev_state->pages[pgoff] =  in __mbochs_get_page()
708 		if (!mdev_state->pages[pgoff])  in __mbochs_get_page()
712 	get_page(mdev_state->pages[pgoff]);  in __mbochs_get_page()
713 	return mdev_state->pages[pgoff];  in __mbochs_get_page()
716 static struct page *mbochs_get_page(struct mdev_state *mdev_state,  in mbochs_get_page()  argument
721 	if (WARN_ON(pgoff >= mdev_state->pagecount))  in mbochs_get_page()
724 	mutex_lock(&mdev_state->ops_lock);  in mbochs_get_page()
725 	page = __mbochs_get_page(mdev_state, pgoff);  in mbochs_get_page()
726 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_page()
731 static void mbochs_put_pages(struct mdev_state *mdev_state)  in mbochs_put_pages()  argument
733 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_put_pages()
736 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_put_pages()
738 	for (i = 0; i < mdev_state->pagecount; i++) {  in mbochs_put_pages()
739 		if (!mdev_state->pages[i])  in mbochs_put_pages()
741 		put_page(mdev_state->pages[i]);  in mbochs_put_pages()
742 		mdev_state->pages[i] = NULL;  in mbochs_put_pages()
751 	struct mdev_state *mdev_state = vma->vm_private_data;  in mbochs_region_vm_fault()  local
754 	if (page_offset >= mdev_state->pagecount)  in mbochs_region_vm_fault()
757 	vmf->page = mbochs_get_page(mdev_state, page_offset);  in mbochs_region_vm_fault()
770 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_mmap()  local
776 	if (vma->vm_end - vma->vm_start > mdev_state->memsize)  in mbochs_mmap()
782 	vma->vm_private_data = mdev_state;  in mbochs_mmap()
806 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_mmap_dmabuf()
821 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_print_dmabuf()
838 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_map_dmabuf()
867 	struct device *dev = mdev_dev(dmabuf->mdev_state->mdev);  in mbochs_unmap_dmabuf()
879 	struct mdev_state *mdev_state = dmabuf->mdev_state;  in mbochs_release_dmabuf()  local
880 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_release_dmabuf()
888 	mutex_lock(&mdev_state->ops_lock);  in mbochs_release_dmabuf()
892 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_release_dmabuf()
902 static struct mbochs_dmabuf *mbochs_dmabuf_alloc(struct mdev_state *mdev_state,  in mbochs_dmabuf_alloc()  argument
908 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_alloc()
915 	dmabuf->id = mdev_state->next_id++;  in mbochs_dmabuf_alloc()
924 		dmabuf->pages[pg] = __mbochs_get_page(mdev_state,  in mbochs_dmabuf_alloc()
930 	dmabuf->mdev_state = mdev_state;  in mbochs_dmabuf_alloc()
931 	list_add(&dmabuf->next, &mdev_state->dmabufs);  in mbochs_dmabuf_alloc()
946 mbochs_dmabuf_find_by_mode(struct mdev_state *mdev_state,  in mbochs_dmabuf_find_by_mode()  argument
951 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_find_by_mode()
953 	list_for_each_entry(dmabuf, &mdev_state->dmabufs, next)  in mbochs_dmabuf_find_by_mode()
961 mbochs_dmabuf_find_by_id(struct mdev_state *mdev_state, u32 id)  in mbochs_dmabuf_find_by_id()  argument
965 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_find_by_id()
967 	list_for_each_entry(dmabuf, &mdev_state->dmabufs, next)  in mbochs_dmabuf_find_by_id()
976 	struct mdev_state *mdev_state = dmabuf->mdev_state;  in mbochs_dmabuf_export()  local
977 	struct device *dev = mdev_dev(mdev_state->mdev);  in mbochs_dmabuf_export()
981 	WARN_ON(!mutex_is_locked(&mdev_state->ops_lock));  in mbochs_dmabuf_export()
1009 	struct mdev_state *mdev_state;  in mbochs_get_region_info()  local
1011 	mdev_state = mdev_get_drvdata(mdev);  in mbochs_get_region_info()
1012 	if (!mdev_state)  in mbochs_get_region_info()
1027 		region_info->size   = mdev_state->memsize;  in mbochs_get_region_info()
1080 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_query_gfx_plane()  local
1102 	mutex_lock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1106 		ret = mbochs_check_framebuffer(mdev_state, &mode);  in mbochs_query_gfx_plane()
1117 	dmabuf = mbochs_dmabuf_find_by_mode(mdev_state, &mode);  in mbochs_query_gfx_plane()
1119 		mbochs_dmabuf_alloc(mdev_state, &mode);  in mbochs_query_gfx_plane()
1121 		mutex_unlock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1134 	    mdev_state->active_id != plane->dmabuf_id) {  in mbochs_query_gfx_plane()
1136 			mdev_state->active_id, plane->dmabuf_id);  in mbochs_query_gfx_plane()
1137 		mdev_state->active_id = plane->dmabuf_id;  in mbochs_query_gfx_plane()
1139 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_query_gfx_plane()
1146 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_get_gfx_dmabuf()  local
1149 	mutex_lock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1151 	dmabuf = mbochs_dmabuf_find_by_id(mdev_state, id);  in mbochs_get_gfx_dmabuf()
1153 		mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1160 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_get_gfx_dmabuf()
1296 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in mbochs_close()  local
1299 	mutex_lock(&mdev_state->ops_lock);  in mbochs_close()
1301 	list_for_each_entry_safe(dmabuf, tmp, &mdev_state->dmabufs, next) {  in mbochs_close()
1310 	mbochs_put_pages(mdev_state);  in mbochs_close()
1312 	mutex_unlock(&mdev_state->ops_lock);  in mbochs_close()
1321 	struct mdev_state *mdev_state = mdev_get_drvdata(mdev);  in memory_show()  local
1323 	return sprintf(buf, "%d MB\n", mdev_state->type->mbytes);  in memory_show()