Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_mv: shorten register names
  sata_mv: workaround errata SATA#13
  sata_mv: cosmetic renames
  sata_mv: workaround errata SATA#26
  sata_mv: workaround errata PCI#7
  sata_mv: replace 0x1f with ATA_PIO4 (v2)
  sata_mv: fix irq mask races
  sata_mv: revert SoC irq breakage
  libata: ahci enclosure management bios workaround
  ata: Add TRIM infrastructure
  ata_piix: VGN-BX297XP wants the controller power up on suspend
  libata: Remove some redundant casts from pata_octeon_cf.c
  pata_artop: typo

block/blk-settings.c

@@ -431,7 +431,7 @@ EXPORT_SYMBOL(blk_queue_segment_boundary);
  *
  * description:
  *    set required memory and length alignment for direct dma transactions.
- *    this is used when buiding direct io requests for the queue.
+ *    this is used when building direct io requests for the queue.
  *
  **/
 void blk_queue_dma_alignment(struct request_queue *q, int mask)

drivers/ata/ahci.c

@@ -78,6 +78,7 @@ static ssize_t ahci_led_store(struct ata_port *ap, const char *buf,
 static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
 					ssize_t size);
 #define MAX_SLOTS 8
+#define MAX_RETRY 15
 
 enum {
 	AHCI_PCI_BAR		= 5,
@@ -1115,6 +1116,8 @@ static void ahci_start_port(struct ata_port *ap)
 	struct ahci_port_priv *pp = ap->private_data;
 	struct ata_link *link;
 	struct ahci_em_priv *emp;
+	ssize_t rc;
+	int i;
 
 	/* enable FIS reception */
 	ahci_start_fis_rx(ap);
@@ -1126,7 +1129,17 @@ static void ahci_start_port(struct ata_port *ap)
 	if (ap->flags & ATA_FLAG_EM) {
 		ata_for_each_link(link, ap, EDGE) {
 			emp = &pp->em_priv[link->pmp];
-			ahci_transmit_led_message(ap, emp->led_state, 4);
+
+			/* EM Transmit bit maybe busy during init */
+			for (i = 0; i < MAX_RETRY; i++) {
+				rc = ahci_transmit_led_message(ap,
+							       emp->led_state,
+							       4);
+				if (rc == -EBUSY)
+					udelay(100);
+				else
+					break;
+			}
 		}
 	}
 
@@ -1331,7 +1344,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
 	em_ctl = readl(mmio + HOST_EM_CTL);
 	if (em_ctl & EM_CTL_TM) {
 		spin_unlock_irqrestore(ap->lock, flags);
-		return -EINVAL;
+		return -EBUSY;
 	}
 
 	/*

drivers/ata/ata_piix.c

@@ -1053,6 +1053,13 @@ static int piix_broken_suspend(void)
 				DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M500"),
 			},
 		},
+		{
+			.ident = "VGN-BX297XP",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-BX297XP"),
+			},
+		},
 
 		{ }	/* terminate list */
 	};

drivers/ata/pata_octeon_cf.c

@@ -503,7 +503,7 @@ static void octeon_cf_dma_setup(struct ata_queued_cmd *qc)
 	struct ata_port *ap = qc->ap;
 	struct octeon_cf_port *cf_port;
 
-	cf_port = (struct octeon_cf_port *)ap->private_data;
+	cf_port = ap->private_data;
 	DPRINTK("ENTER\n");
 	/* issue r/w command */
 	qc->cursg = qc->sg;
@@ -596,7 +596,7 @@ static unsigned int octeon_cf_dma_finished(struct ata_port *ap,
 	if (ap->hsm_task_state != HSM_ST_LAST)
 		return 0;
 
-	cf_port = (struct octeon_cf_port *)ap->private_data;
+	cf_port = ap->private_data;
 
 	dma_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine));
 	if (dma_cfg.s.size != 0xfffff) {
@@ -657,7 +657,7 @@ static irqreturn_t octeon_cf_interrupt(int irq, void *dev_instance)
 			continue;
 
 		ocd = ap->dev->platform_data;
-		cf_port = (struct octeon_cf_port *)ap->private_data;
+		cf_port = ap->private_data;
 		dma_int.u64 =
 			cvmx_read_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine));
 		dma_cfg.u64 =

include/linux/ata.h

@@ -29,6 +29,8 @@
 #ifndef __LINUX_ATA_H__
 #define __LINUX_ATA_H__
 
+#include <linux/kernel.h>
+#include <linux/string.h>
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
@@ -91,6 +93,7 @@ enum {
 	ATA_ID_CFA_POWER	= 160,
 	ATA_ID_CFA_KEY_MGMT	= 162,
 	ATA_ID_CFA_MODES	= 163,
+	ATA_ID_DATA_SET_MGMT	= 169,
 	ATA_ID_ROT_SPEED	= 217,
 	ATA_ID_PIO4		= (1 << 1),
 
@@ -248,6 +251,7 @@ enum {
 	ATA_CMD_SMART		= 0xB0,
 	ATA_CMD_MEDIA_LOCK	= 0xDE,
 	ATA_CMD_MEDIA_UNLOCK	= 0xDF,
+	ATA_CMD_DSM		= 0x06,
 	/* marked obsolete in the ATA/ATAPI-7 spec */
 	ATA_CMD_RESTORE		= 0x10,
 
@@ -321,6 +325,9 @@ enum {
 	ATA_SMART_READ_VALUES	= 0xD0,
 	ATA_SMART_READ_THRESHOLDS = 0xD1,
 
+	/* feature values for Data Set Management */
+	ATA_DSM_TRIM		= 0x01,
+
 	/* password used in LBA Mid / LBA High for executing SMART commands */
 	ATA_SMART_LBAM_PASS	= 0x4F,
 	ATA_SMART_LBAH_PASS	= 0xC2,
@@ -723,6 +730,14 @@ static inline int ata_id_has_unload(const u16 *id)
 	return 0;
 }
 
+static inline int ata_id_has_trim(const u16 *id)
+{
+	if (ata_id_major_version(id) >= 7 &&
+	    (id[ATA_ID_DATA_SET_MGMT] & 1))
+		return 1;
+	return 0;
+}
+
 static inline int ata_id_current_chs_valid(const u16 *id)
 {
 	/* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
@@ -863,6 +878,32 @@ static inline void ata_id_to_hd_driveid(u16 *id)
 #endif
 }
 
+/*
+ * Write up to 'max' LBA Range Entries to the buffer that will cover the
+ * extent from sector to sector + count.  This is used for TRIM and for
+ * ADD LBA(S) TO NV CACHE PINNED SET.
+ */
+static inline unsigned ata_set_lba_range_entries(void *_buffer, unsigned max,
+						u64 sector, unsigned long count)
+{
+	__le64 *buffer = _buffer;
+	unsigned i = 0;
+
+	while (i < max) {
+		u64 entry = sector |
+			((u64)(count > 0xffff ? 0xffff : count) << 48);
+		buffer[i++] = __cpu_to_le64(entry);
+		if (count <= 0xffff)
+			break;
+		count -= 0xffff;
+		sector += 0xffff;
+	}
+
+	max = ALIGN(i * 8, 512);
+	memset(buffer + i, 0, max - i * 8);
+	return max;
+}
+
 static inline int is_multi_taskfile(struct ata_taskfile *tf)
 {
 	return (tf->command == ATA_CMD_READ_MULTI) ||