---

yaml
---
r: 96934
b: refs/heads/master
c: e400607
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9dcffd99d0b1c0c1b8b2c0f85d240e791eca1055
+refs/heads/master: e40060772d85f3534d3d517197696e24bb01f45b

trunk/drivers/ata/sata_mv.c

@@ -886,7 +886,8 @@ static void mv_start_dma(struct ata_port *ap, void __iomem *port_mmio,
 		mv_edma_cfg(ap, want_ncq);
 
 		/* clear FIS IRQ Cause */
-		writelfl(0, port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
+		if (IS_GEN_IIE(hpriv))
+			writelfl(0, port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
 
 		mv_set_edma_ptrs(port_mmio, hpriv, pp);
 
@@ -1812,6 +1813,7 @@ static void mv_err_intr(struct ata_port *ap)
 {
 	void __iomem *port_mmio = mv_ap_base(ap);
 	u32 edma_err_cause, eh_freeze_mask, serr = 0;
+	u32 fis_cause = 0;
 	struct mv_port_priv *pp = ap->private_data;
 	struct mv_host_priv *hpriv = ap->host->private_data;
 	unsigned int action = 0, err_mask = 0;
@@ -1821,16 +1823,19 @@ static void mv_err_intr(struct ata_port *ap)
 
 	/*
 	 * Read and clear the SError and err_cause bits.
+	 * For GenIIe, if EDMA_ERR_TRANS_IRQ_7 is set, we also must read/clear
+	 * the FIS_IRQ_CAUSE register before clearing edma_err_cause.
 	 */
 	sata_scr_read(&ap->link, SCR_ERROR, &serr);
 	sata_scr_write_flush(&ap->link, SCR_ERROR, serr);
 
 	edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
+	if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) {
+		fis_cause = readl(port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
+		writelfl(~fis_cause, port_mmio + SATA_FIS_IRQ_CAUSE_OFS);
+	}
 	writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
 
-	ata_port_printk(ap, KERN_INFO, "%s: err_cause=%08x pp_flags=0x%x\n",
-			__func__, edma_err_cause, pp->pp_flags);
-
 	if (edma_err_cause & EDMA_ERR_DEV) {
 		/*
 		 * Device errors during FIS-based switching operation
@@ -1844,6 +1849,9 @@ static void mv_err_intr(struct ata_port *ap)
 	ata_ehi_clear_desc(ehi);
 	ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x",
 			  edma_err_cause, pp->pp_flags);
+
+	if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7))
+		ata_ehi_push_desc(ehi, "fis_cause=%08x", fis_cause);
 	/*
 	 * All generations share these EDMA error cause bits:
 	 */