108 static int sgiioc4_checkirq(ide_hwif_t *hwif)  in sgiioc4_checkirq()  argument
110 	unsigned long intr_addr = hwif->io_ports.irq_addr + IOC4_INTR_REG * 4;  in sgiioc4_checkirq()
123 	ide_hwif_t *hwif = drive->hwif;  in sgiioc4_clearirq()  local
124 	struct ide_io_ports *io_ports = &hwif->io_ports;  in sgiioc4_clearirq()
137 		u8 stat = sgiioc4_read_status(hwif);  in sgiioc4_clearirq()
140 		stat = sgiioc4_read_status(hwif);  in sgiioc4_clearirq()
143 			stat = sgiioc4_read_status(hwif);  in sgiioc4_clearirq()
147 			struct pci_dev *dev = to_pci_dev(hwif->dev);  in sgiioc4_clearirq()
179 	ide_hwif_t *hwif = drive->hwif;  in sgiioc4_dma_start()  local
180 	unsigned long ioc4_dma_addr = hwif->dma_base + IOC4_DMA_CTRL * 4;  in sgiioc4_dma_start()
187 static u32 sgiioc4_ide_dma_stop(ide_hwif_t *hwif, u64 dma_base)  in sgiioc4_ide_dma_stop()  argument
206 	ide_hwif_t *hwif = drive->hwif;  in sgiioc4_dma_end()  local
207 	unsigned long dma_base = hwif->dma_base;  in sgiioc4_dma_end()
209 	unsigned long *ending_dma = ide_get_hwifdata(hwif);  in sgiioc4_dma_end()
213 	ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);  in sgiioc4_dma_end()
258 static void sgiioc4_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)  in sgiioc4_set_dma_mode()  argument
265 	return sgiioc4_checkirq(drive->hwif);  in sgiioc4_dma_test_irq()
276 	struct ide_cmd *cmd = &drive->hwif->cmd;  in sgiioc4_resetproc()
290 static u8 sgiioc4_read_status(ide_hwif_t *hwif)  in sgiioc4_read_status()  argument
292 	unsigned long port = hwif->io_ports.status_addr;  in sgiioc4_read_status()
310 static int ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)  in ide_dma_sgiioc4()  argument
312 	struct pci_dev *dev = to_pci_dev(hwif->dev);  in ide_dma_sgiioc4()
317 	printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);  in ide_dma_sgiioc4()
319 	if (request_mem_region(dma_base, num_ports, hwif->name) == NULL) {  in ide_dma_sgiioc4()
321 		       "already in use\n", __func__, hwif->name,  in ide_dma_sgiioc4()
326 	hwif->dma_base = (unsigned long)hwif->io_ports.irq_addr +  in ide_dma_sgiioc4()
329 	hwif->sg_max_nents = IOC4_PRD_ENTRIES;  in ide_dma_sgiioc4()
331 	hwif->prd_max_nents = IOC4_PRD_ENTRIES;  in ide_dma_sgiioc4()
332 	hwif->prd_ent_size = IOC4_PRD_BYTES;  in ide_dma_sgiioc4()
334 	if (ide_allocate_dma_engine(hwif))  in ide_dma_sgiioc4()
338 				   (dma_addr_t *)&hwif->extra_base, GFP_KERNEL);  in ide_dma_sgiioc4()
340 		ide_set_hwifdata(hwif, pad);  in ide_dma_sgiioc4()
344 	ide_release_dma_engine(hwif);  in ide_dma_sgiioc4()
347 	       __func__, hwif->name);  in ide_dma_sgiioc4()
348 	printk(KERN_INFO "%s: changing from DMA to PIO mode", hwif->name);  in ide_dma_sgiioc4()
360 	ide_hwif_t *hwif = drive->hwif;  in sgiioc4_configure_for_dma()  local
361 	unsigned long dma_base = hwif->dma_base;  in sgiioc4_configure_for_dma()
371 		ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);  in sgiioc4_configure_for_dma()
384 		ioc4_dma = sgiioc4_ide_dma_stop(hwif, dma_base);  in sgiioc4_configure_for_dma()
392 	dma_addr = cpu_to_le32(hwif->dmatable_dma);  in sgiioc4_configure_for_dma()
396 	memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE);  in sgiioc4_configure_for_dma()
397 	ending_dma_addr = cpu_to_le32(hwif->extra_base);  in sgiioc4_configure_for_dma()
416 	ide_hwif_t *hwif = drive->hwif;  in sgiioc4_build_dmatable()  local
417 	unsigned int *table = hwif->dmatable_cpu;  in sgiioc4_build_dmatable()
419 	struct scatterlist *sg = hwif->sg_table;  in sgiioc4_build_dmatable()