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Commit b4eea67a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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:
  ahci: sis can't do PMP
  ata_piix: add TECRA M4 to broken suspend list
  LIBATA: Add HAVE_PATA_PLATFORM to select PATA_PLATFORM driver
  sata_mv: warn on PIO with multiple DRQs
  sata_mv: enable async_notify for 60x1 Rev.C0 and higher
  libata: don't check whether to use DMA or not for no data commands
  ahci: jmb361 has only one port
parents 1f6ef234 9a3b103c

drivers/ata/Kconfig

+9 −1
Original line number Diff line number Diff line
@@ -651,9 +651,17 @@ config PATA_WINBOND_VLB 
	  Support for the Winbond W83759A controller on Vesa Local Bus

	  systems.



config HAVE_PATA_PLATFORM

	bool

	help

	  This is an internal configuration node for any machine that

	  uses pata-platform driver to enable the relevant driver in the

	  configuration structure without having to submit endless patches

	  to update the PATA_PLATFORM entry.



config PATA_PLATFORM

	tristate "Generic platform device PATA support"

	depends on EMBEDDED || ARCH_RPC || PPC

	depends on EMBEDDED || ARCH_RPC || PPC || HAVE_PATA_PLATFORM

	help

	  This option enables support for generic directly connected ATA

	  devices commonly found on embedded systems.

drivers/ata/ahci.c

+20 −3
Original line number Diff line number Diff line
@@ -90,6 +90,7 @@ enum { 
	board_ahci_mv		= 4,

	board_ahci_sb700	= 5,

	board_ahci_mcp65	= 6,

	board_ahci_nopmp	= 7,



	/* global controller registers */

	HOST_CAP		= 0x00, /* host capabilities */
@@ -401,6 +402,14 @@ static const struct ata_port_info ahci_port_info[] = { 
		.udma_mask	= ATA_UDMA6,

		.port_ops	= &ahci_ops,

	},

	/* board_ahci_nopmp */

	{

		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP),

		.flags		= AHCI_FLAG_COMMON,

		.pio_mask	= 0x1f, /* pio0-4 */

		.udma_mask	= ATA_UDMA6,

		.port_ops	= &ahci_ops,

	},

};



static const struct pci_device_id ahci_pci_tbl[] = {
@@ -525,9 +534,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { 
	{ PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci },		/* MCP7B */



	/* SiS */

	{ PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */

	{ PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */

	{ PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */

	{ PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp },		/* SiS 966 */

	{ PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp },		/* SiS 968 */

	{ PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp },		/* SiS 968 */



	/* Marvell */

	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
@@ -653,6 +662,14 @@ static void ahci_save_initial_config(struct pci_dev *pdev, 
		cap &= ~HOST_CAP_PMP;

	}



	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361 &&

	    port_map != 1) {

		dev_printk(KERN_INFO, &pdev->dev,

			   "JMB361 has only one port, port_map 0x%x -> 0x%x\n",

			   port_map, 1);

		port_map = 1;

	}



	/*

	 * Temporary Marvell 6145 hack: PATA port presence

	 * is asserted through the standard AHCI port

drivers/ata/ata_piix.c

+7 −0
Original line number Diff line number Diff line
@@ -1042,6 +1042,13 @@ static int piix_broken_suspend(void) 
				DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M4"),

			},

		},

		{

			.ident = "TECRA M4",

			.matches = {

				DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),

				DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M4"),

			},

		},

		{

			.ident = "TECRA M5",

			.matches = {

drivers/ata/libata-core.c

+2 −2
Original line number Diff line number Diff line
@@ -4297,7 +4297,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) 
}



/**

 *	ata_check_atapi_dma - Check whether ATAPI DMA can be supported

 *	atapi_check_dma - Check whether ATAPI DMA can be supported

 *	@qc: Metadata associated with taskfile to check

 *

 *	Allow low-level driver to filter ATA PACKET commands, returning
@@ -4310,7 +4310,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) 
 *	RETURNS: 0 when ATAPI DMA can be used

 *               nonzero otherwise

 */

int ata_check_atapi_dma(struct ata_queued_cmd *qc)

int atapi_check_dma(struct ata_queued_cmd *qc)

{

	struct ata_port *ap = qc->ap;

drivers/ata/libata-scsi.c

+7 −9
Original line number Diff line number Diff line
@@ -2343,8 +2343,8 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) 
{

	struct scsi_cmnd *scmd = qc->scsicmd;

	struct ata_device *dev = qc->dev;

	int using_pio = (dev->flags & ATA_DFLAG_PIO);

	int nodata = (scmd->sc_data_direction == DMA_NONE);

	int using_pio = !nodata && (dev->flags & ATA_DFLAG_PIO);

	unsigned int nbytes;



	memset(qc->cdb, 0, dev->cdb_len);
@@ -2362,7 +2362,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) 
	ata_qc_set_pc_nbytes(qc);



	/* check whether ATAPI DMA is safe */

	if (!using_pio && ata_check_atapi_dma(qc))

	if (!nodata && !using_pio && atapi_check_dma(qc))

		using_pio = 1;



	/* Some controller variants snoop this value for Packet
@@ -2402,13 +2402,11 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc) 
	qc->tf.lbam = (nbytes & 0xFF);

	qc->tf.lbah = (nbytes >> 8);



	if (using_pio || nodata) {

		/* no data, or PIO data xfer */

	if (nodata)

		qc->tf.protocol = ATAPI_PROT_NODATA;

		else

	else if (using_pio)

		qc->tf.protocol = ATAPI_PROT_PIO;

	} else {

	else {

		/* DMA data xfer */

		qc->tf.protocol = ATAPI_PROT_DMA;

		qc->tf.feature |= ATAPI_PKT_DMA;