291 	u32 em_ctl, msg;  in ahci_read_em_buffer()  local
299 	em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_read_em_buffer()
300 	if (!(ap->flags & ATA_FLAG_EM) || em_ctl & EM_CTL_XMT ||  in ahci_read_em_buffer()
307 	if (!(em_ctl & EM_CTL_MR)) {  in ahci_read_em_buffer()
313 	if (!(em_ctl & EM_CTL_SMB))  in ahci_read_em_buffer()
352 	u32 em_ctl, msg;  in ahci_store_em_buffer()  local
365 	em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_store_em_buffer()
366 	if (em_ctl & EM_CTL_TM) {  in ahci_store_em_buffer()
378 	writel(em_ctl | EM_CTL_TM, mmio + HOST_EM_CTL);  in ahci_store_em_buffer()
393 	u32 em_ctl;  in ahci_show_em_supported()  local
396 	em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_show_em_supported()
400 		       em_ctl & EM_CTL_LED ? "led " : "",  in ahci_show_em_supported()
401 		       em_ctl & EM_CTL_SAFTE ? "saf-te " : "",  in ahci_show_em_supported()
402 		       em_ctl & EM_CTL_SES ? "ses-2 " : "",  in ahci_show_em_supported()
403 		       em_ctl & EM_CTL_SGPIO ? "sgpio " : "");  in ahci_show_em_supported()
1036 	u32 em_ctl;  in ahci_reset_em()  local
1038 	em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_reset_em()
1039 	if ((em_ctl & EM_CTL_TM) || (em_ctl & EM_CTL_RST))  in ahci_reset_em()
1042 	writel(em_ctl | EM_CTL_RST, mmio + HOST_EM_CTL);  in ahci_reset_em()
1053 	u32 em_ctl;  in ahci_transmit_led_message()  local
1073 	em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_transmit_led_message()
1074 	if (em_ctl & EM_CTL_TM) {  in ahci_transmit_led_message()
1097 		writel(em_ctl | EM_CTL_TM, mmio + HOST_EM_CTL);  in ahci_transmit_led_message()
2515 	u32 em_ctl = readl(mmio + HOST_EM_CTL);  in ahci_set_em_messages()  local
2520 	messages = (em_ctl & EM_CTRL_MSG_TYPE) >> 16;  in ahci_set_em_messages()
2528 		if (!(em_ctl & EM_CTL_ALHD))  in ahci_set_em_messages()