50 static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
51 static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
99 static unsigned int get_scr_cfg_addr(struct ata_link *link, unsigned int sc_reg)  in get_scr_cfg_addr()  argument
103 	unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);  in get_scr_cfg_addr()
129 			    unsigned int sc_reg, u32 *val)  in sis_scr_cfg_read()  argument
132 	unsigned int cfg_addr = get_scr_cfg_addr(link, sc_reg);  in sis_scr_cfg_read()
134 	if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */  in sis_scr_cfg_read()
142 			     unsigned int sc_reg, u32 val)  in sis_scr_cfg_write()  argument
145 	unsigned int cfg_addr = get_scr_cfg_addr(link, sc_reg);  in sis_scr_cfg_write()
151 static int sis_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)  in sis_scr_read()  argument
156 	if (sc_reg > SCR_CONTROL)  in sis_scr_read()
160 		return sis_scr_cfg_read(link, sc_reg, val);  in sis_scr_read()
162 	*val = ioread32(base + sc_reg * 4);  in sis_scr_read()
166 static int sis_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)  in sis_scr_write()  argument
171 	if (sc_reg > SCR_CONTROL)  in sis_scr_write()
175 		return sis_scr_cfg_write(link, sc_reg, val);  in sis_scr_write()
177 	iowrite32(val, base + (sc_reg * 4));  in sis_scr_write()