---

yaml
---
r: 75396
b: refs/heads/master
c: e63501d
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 96c2a8766bf4fe91abac863749c11637fabcc64f
+refs/heads/master: e63501d51d6a1a897470be2684e9c55a46d0d6d5

trunk/Documentation/kernel-parameters.txt

@@ -883,6 +883,14 @@ and is between 256 and 4096 characters. It is defined in the file
 	lapic_timer_c2_ok	[X86-32,x86-64,APIC] trust the local apic timer in
 			C2 power state.
 
+	libata.dma=	[LIBATA] DMA control
+			libata.dma=0	  Disable all PATA and SATA DMA
+			libata.dma=1	  PATA and SATA Disk DMA only
+			libata.dma=2	  ATAPI (CDROM) DMA only
+			libata.dma=4	  Compact Flash DMA only 
+			Combinations also work, so libata.dma=3 enables DMA
+			for disks and CDROMs, but not CFs.
+
 	libata.noacpi	[LIBATA] Disables use of ACPI in libata suspend/resume
 			when set.
 			Format: <int>

trunk/drivers/ata/libata-eh.c

@@ -1733,11 +1733,15 @@ static void ata_eh_link_autopsy(struct ata_link *link)
 		ehc->i.action &= ~ATA_EH_PERDEV_MASK;
 	}
 
-	/* consider speeding down */
+	/* propagate timeout to host link */
+	if ((all_err_mask & AC_ERR_TIMEOUT) && !ata_is_host_link(link))
+		ap->link.eh_context.i.err_mask |= AC_ERR_TIMEOUT;
+
+	/* record error and consider speeding down */
 	dev = ehc->i.dev;
-	if (!dev && ata_link_max_devices(link) == 1 &&
-	    ata_dev_enabled(link->device))
-		dev = link->device;
+	if (!dev && ((ata_link_max_devices(link) == 1 &&
+		      ata_dev_enabled(link->device))))
+	    dev = link->device;
 
 	if (dev)
 		ehc->i.action |= ata_eh_speed_down(dev, is_io, all_err_mask);
@@ -1759,8 +1763,14 @@ void ata_eh_autopsy(struct ata_port *ap)
 {
 	struct ata_link *link;
 
-	__ata_port_for_each_link(link, ap)
+	ata_port_for_each_link(link, ap)
 		ata_eh_link_autopsy(link);
+
+	/* Autopsy of fanout ports can affect host link autopsy.
+	 * Perform host link autopsy last.
+	 */
+	if (ap->nr_pmp_links)
+		ata_eh_link_autopsy(&ap->link);
 }
 
 /**
@@ -2157,13 +2167,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
 		if (ata_link_offline(link))
 			continue;
 
-		/* apply class override and convert UNKNOWN to NONE */
+		/* apply class override */
 		if (lflags & ATA_LFLAG_ASSUME_ATA)
 			classes[dev->devno] = ATA_DEV_ATA;
 		else if (lflags & ATA_LFLAG_ASSUME_SEMB)
 			classes[dev->devno] = ATA_DEV_SEMB_UNSUP; /* not yet */
-		else if (classes[dev->devno] == ATA_DEV_UNKNOWN)
-			classes[dev->devno] = ATA_DEV_NONE;
 	}
 
 	/* record current link speed */

trunk/drivers/ata/libata-pmp.c

@@ -495,14 +495,12 @@ static void sata_pmp_quirks(struct ata_port *ap)
 			/* SError.N need a kick in the ass to get working */
 			link->flags |= ATA_LFLAG_HRST_TO_RESUME;
 
-			/* class code report is unreliable */
-			if (link->pmp < 5)
-				link->flags |= ATA_LFLAG_ASSUME_ATA;
-
-			/* The config device, which can be either at
-			 * port 0 or 5, locks up on SRST.
+			/* Class code report is unreliable and SRST
+			 * times out under certain configurations.
+			 * Config device can be at port 0 or 5 and
+			 * locks up on SRST.
 			 */
-			if (link->pmp == 0 || link->pmp == 5)
+			if (link->pmp <= 5)
 				link->flags |= ATA_LFLAG_NO_SRST |
 					       ATA_LFLAG_ASSUME_ATA;
 

trunk/drivers/ata/libata-scsi.c

@@ -872,7 +872,8 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
 
 	ata_scsi_sdev_config(sdev);
 
-	sdev->manage_start_stop = 1;
+	if (dev->class == ATA_DEV_ATA)
+		sdev->manage_start_stop = 1;
 
 	if (dev)
 		ata_scsi_dev_config(sdev, dev);

trunk/drivers/ata/libata-sff.c

@@ -806,15 +806,18 @@ int ata_pci_init_one(struct pci_dev *pdev,
 	if (rc)
 		goto err_out;
 
-	if (!legacy_mode) {
+	if (!legacy_mode && pdev->irq) {
+		/* We may have no IRQ assigned in which case we can poll. This
+		   shouldn't happen on a sane system but robustness is cheap
+		   in this case */
 		rc = devm_request_irq(dev, pdev->irq, pi->port_ops->irq_handler,
 				      IRQF_SHARED, DRV_NAME, host);
 		if (rc)
 			goto err_out;
 
 		ata_port_desc(host->ports[0], "irq %d", pdev->irq);
 		ata_port_desc(host->ports[1], "irq %d", pdev->irq);
-	} else {
+	} else if (legacy_mode) {
 		if (!ata_port_is_dummy(host->ports[0])) {
 			rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
 					      pi->port_ops->irq_handler,

trunk/drivers/ata/pata_ixp4xx_cf.c

@@ -130,10 +130,11 @@ static struct ata_port_operations ixp4xx_port_ops = {
 	.port_start		= ata_port_start,
 };
 
-static void ixp4xx_setup_port(struct ata_ioports *ioaddr,
+static void ixp4xx_setup_port(struct ata_port *ap,
 			      struct ixp4xx_pata_data *data,
 			      unsigned long raw_cs0, unsigned long raw_cs1)
 {
+	struct ata_ioports *ioaddr = &ap->ioaddr;
 	unsigned long raw_cmd = raw_cs0;
 	unsigned long raw_ctl = raw_cs1 + 0x06;
 

trunk/drivers/ata/pata_pdc202xx_old.c

@@ -215,8 +215,8 @@ static void pdc2026x_bmdma_stop(struct ata_queued_cmd *qc)
 	/* Flip back to 33Mhz for PIO */
 	if (adev->dma_mode >= XFER_UDMA_2)
 		iowrite8(ioread8(clock) & ~sel66, clock);
-
 	ata_bmdma_stop(qc);
+	pdc202xx_set_piomode(ap, adev);
 }
 
 /**
@@ -233,6 +233,17 @@ static void pdc2026x_dev_config(struct ata_device *adev)
 	adev->max_sectors = 256;
 }
 
+static int pdc2026x_port_start(struct ata_port *ap)
+{
+	void __iomem *bmdma = ap->ioaddr.bmdma_addr;
+	if (bmdma) {
+		/* Enable burst mode */
+		u8 burst = ioread8(bmdma + 0x1f);
+		iowrite8(burst | 0x01, bmdma + 0x1f);
+	}
+	return ata_sff_port_start(ap);
+}
+
 static struct scsi_host_template pdc202xx_sht = {
 	.module			= THIS_MODULE,
 	.name			= DRV_NAME,
@@ -313,7 +324,7 @@ static struct ata_port_operations pdc2026x_port_ops = {
 	.irq_clear	= ata_bmdma_irq_clear,
 	.irq_on		= ata_irq_on,
 
-	.port_start	= ata_sff_port_start,
+	.port_start	= pdc2026x_port_start,
 };
 
 static int pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)

trunk/drivers/ata/sata_qstor.c

@@ -270,7 +270,7 @@ static int qs_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
 static void qs_error_handler(struct ata_port *ap)
 {
 	qs_enter_reg_mode(ap);
-	ata_do_eh(ap, qs_prereset, ata_std_softreset, NULL,
+	ata_do_eh(ap, qs_prereset, NULL, sata_std_hardreset,
 		  ata_std_postreset);
 }
 

trunk/drivers/ata/sata_sil24.c

@@ -832,24 +832,39 @@ static int sil24_qc_defer(struct ata_queued_cmd *qc)
 	struct ata_link *link = qc->dev->link;
 	struct ata_port *ap = link->ap;
 	u8 prot = qc->tf.protocol;
-	int is_atapi = (prot == ATA_PROT_ATAPI ||
-			prot == ATA_PROT_ATAPI_NODATA ||
-			prot == ATA_PROT_ATAPI_DMA);
-
-	/* ATAPI commands completing with CHECK_SENSE cause various
-	 * weird problems if other commands are active.  PMP DMA CS
-	 * errata doesn't cover all and HSM violation occurs even with
-	 * only one other device active.  Always run an ATAPI command
-	 * by itself.
-	 */
+
+	/*
+	 * There is a bug in the chip:
+	 * Port LRAM Causes the PRB/SGT Data to be Corrupted
+	 * If the host issues a read request for LRAM and SActive registers
+	 * while active commands are available in the port, PRB/SGT data in
+	 * the LRAM can become corrupted. This issue applies only when
+	 * reading from, but not writing to, the LRAM.
+	 *
+	 * Therefore, reading LRAM when there is no particular error [and
+	 * other commands may be outstanding] is prohibited.
+	 *
+	 * To avoid this bug there are two situations where a command must run
+	 * exclusive of any other commands on the port:
+	 *
+	 * - ATAPI commands which check the sense data
+	 * - Passthrough ATA commands which always have ATA_QCFLAG_RESULT_TF
+	 *   set.
+	 *
+ 	 */
+	int is_excl = (prot == ATA_PROT_ATAPI ||
+		       prot == ATA_PROT_ATAPI_NODATA ||
+		       prot == ATA_PROT_ATAPI_DMA ||
+		       (qc->flags & ATA_QCFLAG_RESULT_TF));
+
 	if (unlikely(ap->excl_link)) {
 		if (link == ap->excl_link) {
 			if (ap->nr_active_links)
 				return ATA_DEFER_PORT;
 			qc->flags |= ATA_QCFLAG_CLEAR_EXCL;
 		} else
 			return ATA_DEFER_PORT;
-	} else if (unlikely(is_atapi)) {
+	} else if (unlikely(is_excl)) {
 		ap->excl_link = link;
 		if (ap->nr_active_links)
 			return ATA_DEFER_PORT;

trunk/drivers/crypto/padlock-aes.c

@@ -429,8 +429,8 @@ static inline void padlock_xcrypt(const u8 *input, u8 *output, void *key,
 
 static void aes_crypt_copy(const u8 *in, u8 *out, u32 *key, struct cword *cword)
 {
-	u8 tmp[AES_BLOCK_SIZE * 2]
-		__attribute__ ((__aligned__(PADLOCK_ALIGNMENT)));
+	u8 buf[AES_BLOCK_SIZE * 2 + PADLOCK_ALIGNMENT - 1];
+	u8 *tmp = PTR_ALIGN(&buf[0], PADLOCK_ALIGNMENT);
 
 	memcpy(tmp, in, AES_BLOCK_SIZE);
 	padlock_xcrypt(tmp, out, key, cword);

trunk/drivers/ide/ide-acpi.c

@@ -16,6 +16,7 @@
 #include <acpi/acpi.h>
 #include <linux/ide.h>
 #include <linux/pci.h>
+#include <linux/dmi.h>
 
 #include <acpi/acpi_bus.h>
 #include <acpi/acnames.h>
@@ -65,6 +66,37 @@ extern int ide_noacpi;
 extern int ide_noacpitfs;
 extern int ide_noacpionboot;
 
+static bool ide_noacpi_psx;
+static int no_acpi_psx(const struct dmi_system_id *id)
+{
+	ide_noacpi_psx = true;
+	printk(KERN_NOTICE"%s detected - disable ACPI _PSx.\n", id->ident);
+	return 0;
+}
+
+static const struct dmi_system_id ide_acpi_dmi_table[] = {
+	/* Bug 9673. */
+	/* We should check if this is because ACPI NVS isn't save/restored. */
+	{
+		.callback = no_acpi_psx,
+		.ident    = "HP nx9005",
+		.matches  = {
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies Ltd."),
+			DMI_MATCH(DMI_BIOS_VERSION, "KAM1.60")
+		},
+	},
+};
+
+static int ide_acpi_blacklist(void)
+{
+	static int done;
+	if (done)
+		return 0;
+	done = 1;
+	dmi_check_system(ide_acpi_dmi_table);
+	return 0;
+}
+
 /**
  * ide_get_dev_handle - finds acpi_handle and PCI device.function
  * @dev: device to locate
@@ -623,7 +655,7 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
 {
 	int unit;
 
-	if (ide_noacpi)
+	if (ide_noacpi || ide_noacpi_psx)
 		return;
 
 	DEBPRINT("ENTER:\n");
@@ -668,6 +700,8 @@ void ide_acpi_init(ide_hwif_t *hwif)
 	struct ide_acpi_drive_link	*master;
 	struct ide_acpi_drive_link	*slave;
 
+	ide_acpi_blacklist();
+
 	hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
 	if (!hwif->acpidata)
 		return;

trunk/drivers/ide/ide-iops.c

@@ -612,12 +612,12 @@ u8 eighty_ninty_three (ide_drive_t *drive)
 		printk(KERN_DEBUG "%s: skipping word 93 validity check\n",
 				  drive->name);
 
+	if (ide_dev_is_sata(id) && !ivb)
+		return 1;
+
 	if (hwif->cbl != ATA_CBL_PATA80 && !ivb)
 		goto no_80w;
 
-	if (ide_dev_is_sata(id))
-		return 1;
-
 	/*
 	 * FIXME:
 	 * - force bit13 (80c cable present) check also for !ivb devices

trunk/drivers/ide/pci/trm290.c

@@ -1,7 +1,8 @@
 /*
- *  linux/drivers/ide/pci/trm290.c		Version 1.02	Mar. 18, 2000
+ *  linux/drivers/ide/pci/trm290.c		Version 1.05	Dec. 26, 2007
  *
  *  Copyright (c) 1997-1998  Mark Lord
+ *  Copyright (c) 2007       MontaVista Software, Inc. <source@mvista.com>
  *  May be copied or modified under the terms of the GNU General Public License
  *
  *  June 22, 2004 - get rid of check_region
@@ -177,15 +178,15 @@ static void trm290_selectproc (ide_drive_t *drive)
 	trm290_prepare_drive(drive, drive->using_dma);
 }
 
-static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
+static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
 {
 	BUG_ON(HWGROUP(drive)->handler != NULL);	/* paranoia check */
 	ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
 	/* issue cmd to drive */
 	outb(command, IDE_COMMAND_REG);
 }
 
-static int trm290_ide_dma_setup(ide_drive_t *drive)
+static int trm290_dma_setup(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq = hwif->hwgroup->rq;
@@ -215,7 +216,7 @@ static int trm290_ide_dma_setup(ide_drive_t *drive)
 	return 0;
 }
 
-static void trm290_ide_dma_start(ide_drive_t *drive)
+static void trm290_dma_start(ide_drive_t *drive)
 {
 }
 
@@ -240,6 +241,14 @@ static int trm290_ide_dma_test_irq (ide_drive_t *drive)
 	return (status == 0x00ff);
 }
 
+static void trm290_dma_host_on(ide_drive_t *drive)
+{
+}
+
+static void trm290_dma_host_off(ide_drive_t *drive)
+{
+}
+
 static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 {
 	unsigned int cfgbase = 0;
@@ -280,11 +289,13 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 
 	ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3);
 
-	hwif->dma_setup = &trm290_ide_dma_setup;
-	hwif->dma_exec_cmd = &trm290_ide_dma_exec_cmd;
-	hwif->dma_start = &trm290_ide_dma_start;
-	hwif->ide_dma_end = &trm290_ide_dma_end;
-	hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
+	hwif->dma_host_off	= &trm290_dma_host_off;
+	hwif->dma_host_on	= &trm290_dma_host_on;
+	hwif->dma_setup 	= &trm290_dma_setup;
+	hwif->dma_exec_cmd	= &trm290_dma_exec_cmd;
+	hwif->dma_start 	= &trm290_dma_start;
+	hwif->ide_dma_end	= &trm290_ide_dma_end;
+	hwif->ide_dma_test_irq	= &trm290_ide_dma_test_irq;
 
 	hwif->selectproc = &trm290_selectproc;
 #if 1