From b7157d95c8e56ecab4bbf4d7825e82ff4c0ea595 Mon Sep 17 00:00:00 2001
From: Tejun Heo <htejun@gmail.com>
Date: Sun, 23 Sep 2007 13:19:55 +0900
Subject: [PATCH] --- yaml --- r: 68144 b: refs/heads/master c:
 6949b9148d3656afc13a2ccc06d13c071ec71bdc h: refs/heads/master v: v3

---
 [refs]                   |  2 +-
 trunk/drivers/ata/ahci.c | 11 +++++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index c4dba126ca1a..6bb9481fa59c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 417a1a6d3d7abad4c5288135f640e6e38e7a65c5
+refs/heads/master: 6949b9148d3656afc13a2ccc06d13c071ec71bdc
diff --git a/trunk/drivers/ata/ahci.c b/trunk/drivers/ata/ahci.c
index 35ede5c31b9f..af7bf2679088 100644
--- a/trunk/drivers/ata/ahci.c
+++ b/trunk/drivers/ata/ahci.c
@@ -176,6 +176,7 @@ enum {
 	AHCI_HFLAG_32BIT_ONLY		= (1 << 3), /* force 32bit */
 	AHCI_HFLAG_MV_PATA		= (1 << 4), /* PATA port */
 	AHCI_HFLAG_NO_MSI		= (1 << 5), /* no PCI MSI */
+	AHCI_HFLAG_NO_PMP		= (1 << 6), /* no PMP */
 
 	/* ap->flags bits */
 	AHCI_FLAG_NO_HOTPLUG		= (1 << 24), /* ignore PxSERR.DIAG.N */
@@ -357,7 +358,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	},
 	/* board_ahci_vt8251 */
 	{
-		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
+		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
 		.flags		= AHCI_FLAG_COMMON,
 		.link_flags	= AHCI_LFLAG_COMMON | ATA_LFLAG_HRST_TO_RESUME,
 		.pio_mask	= 0x1f, /* pio0-4 */
@@ -376,7 +377,7 @@ static const struct ata_port_info ahci_port_info[] = {
 	/* board_ahci_sb600 */
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
-				 AHCI_HFLAG_32BIT_ONLY),
+				 AHCI_HFLAG_32BIT_ONLY | AHCI_HFLAG_NO_PMP),
 		.flags		= AHCI_FLAG_COMMON,
 		.link_flags	= AHCI_LFLAG_COMMON,
 		.pio_mask	= 0x1f, /* pio0-4 */
@@ -578,6 +579,12 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
 		cap &= ~HOST_CAP_NCQ;
 	}
 
+	if ((cap && HOST_CAP_PMP) && (hpriv->flags & AHCI_HFLAG_NO_PMP)) {
+		dev_printk(KERN_INFO, &pdev->dev,
+			   "controller can't do PMP, turning off CAP_PMP\n");
+		cap &= ~HOST_CAP_PMP;
+	}
+
 	/*
 	 * Temporary Marvell 6145 hack: PATA port presence
 	 * is asserted through the standard AHCI port