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Diffstat (limited to 'drivers/scsi/ahci.c')
-rw-r--r--drivers/scsi/ahci.c104
1 files changed, 53 insertions, 51 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index e3b9692b9688..320df6cd3def 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -1,26 +1,34 @@
/*
* ahci.c - AHCI SATA support
*
- * Copyright 2004 Red Hat, Inc.
+ * Maintained by: Jeff Garzik <jgarzik@pobox.com>
+ * Please ALWAYS copy linux-ide@vger.kernel.org
+ * on emails.
*
- * The contents of this file are subject to the Open
- * Software License version 1.1 that can be found at
- * http://www.opensource.org/licenses/osl-1.1.txt and is included herein
- * by reference.
+ * Copyright 2004-2005 Red Hat, Inc.
*
- * Alternatively, the contents of this file may be used under the terms
- * of the GNU General Public License version 2 (the "GPL") as distributed
- * in the kernel source COPYING file, in which case the provisions of
- * the GPL are applicable instead of the above. If you wish to allow
- * the use of your version of this file only under the terms of the
- * GPL and not to allow others to use your version of this file under
- * the OSL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the GPL.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under either the OSL or the GPL.
*
- * Version 1.0 of the AHCI specification:
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
+ * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
*
*/
@@ -181,7 +189,6 @@ static void ahci_irq_clear(struct ata_port *ap);
static void ahci_eng_timeout(struct ata_port *ap);
static int ahci_port_start(struct ata_port *ap);
static void ahci_port_stop(struct ata_port *ap);
-static void ahci_host_stop(struct ata_host_set *host_set);
static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
static void ahci_qc_prep(struct ata_queued_cmd *qc);
static u8 ahci_check_status(struct ata_port *ap);
@@ -234,7 +241,6 @@ static struct ata_port_operations ahci_ops = {
.port_start = ahci_port_start,
.port_stop = ahci_port_stop,
- .host_stop = ahci_host_stop,
};
static struct ata_port_info ahci_port_info[] = {
@@ -244,7 +250,7 @@ static struct ata_port_info ahci_port_info[] = {
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SATA_RESET | ATA_FLAG_MMIO |
ATA_FLAG_PIO_DMA,
- .pio_mask = 0x03, /* pio3-4 */
+ .pio_mask = 0x1f, /* pio0-4 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &ahci_ops,
},
@@ -269,6 +275,8 @@ static struct pci_device_id ahci_pci_tbl[] = {
board_ahci }, /* ESB2 */
{ PCI_VENDOR_ID_INTEL, 0x2683, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* ESB2 */
+ { PCI_VENDOR_ID_INTEL, 0x27c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ board_ahci }, /* ICH7-M DH */
{ } /* terminate list */
};
@@ -286,17 +294,9 @@ static inline unsigned long ahci_port_base_ul (unsigned long base, unsigned int
return base + 0x100 + (port * 0x80);
}
-static inline void *ahci_port_base (void *base, unsigned int port)
+static inline void __iomem *ahci_port_base (void __iomem *base, unsigned int port)
{
- return (void *) ahci_port_base_ul((unsigned long)base, port);
-}
-
-static void ahci_host_stop(struct ata_host_set *host_set)
-{
- struct ahci_host_priv *hpriv = host_set->private_data;
- kfree(hpriv);
-
- ata_host_stop(host_set);
+ return (void __iomem *) ahci_port_base_ul((unsigned long)base, port);
}
static int ahci_port_start(struct ata_port *ap)
@@ -304,8 +304,9 @@ static int ahci_port_start(struct ata_port *ap)
struct device *dev = ap->host_set->dev;
struct ahci_host_priv *hpriv = ap->host_set->private_data;
struct ahci_port_priv *pp;
- void *mem, *mmio = ap->host_set->mmio_base;
- void *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void *mem;
dma_addr_t mem_dma;
pp = kmalloc(sizeof(*pp), GFP_KERNEL);
@@ -373,8 +374,8 @@ static void ahci_port_stop(struct ata_port *ap)
{
struct device *dev = ap->host_set->dev;
struct ahci_port_priv *pp = ap->private_data;
- void *mmio = ap->host_set->mmio_base;
- void *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
u32 tmp;
tmp = readl(port_mmio + PORT_CMD);
@@ -536,8 +537,8 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
static void ahci_intr_error(struct ata_port *ap, u32 irq_stat)
{
- void *mmio = ap->host_set->mmio_base;
- void *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
u32 tmp;
int work;
@@ -584,12 +585,16 @@ static void ahci_intr_error(struct ata_port *ap, u32 irq_stat)
static void ahci_eng_timeout(struct ata_port *ap)
{
- void *mmio = ap->host_set->mmio_base;
- void *port_mmio = ahci_port_base(mmio, ap->port_no);
+ struct ata_host_set *host_set = ap->host_set;
+ void __iomem *mmio = host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
struct ata_queued_cmd *qc;
+ unsigned long flags;
DPRINTK("ENTER\n");
+ spin_lock_irqsave(&host_set->lock, flags);
+
ahci_intr_error(ap, readl(port_mmio + PORT_IRQ_STAT));
qc = ata_qc_from_tag(ap, ap->active_tag);
@@ -607,12 +612,13 @@ static void ahci_eng_timeout(struct ata_port *ap)
ata_qc_complete(qc, ATA_ERR);
}
+ spin_unlock_irqrestore(&host_set->lock, flags);
}
static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
{
- void *mmio = ap->host_set->mmio_base;
- void *port_mmio = ahci_port_base(mmio, ap->port_no);
+ void __iomem *mmio = ap->host_set->mmio_base;
+ void __iomem *port_mmio = ahci_port_base(mmio, ap->port_no);
u32 status, serr, ci;
serr = readl(port_mmio + PORT_SCR_ERR);
@@ -648,7 +654,7 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
struct ata_host_set *host_set = dev_instance;
struct ahci_host_priv *hpriv;
unsigned int i, handled = 0;
- void *mmio;
+ void __iomem *mmio;
u32 irq_stat, irq_ack = 0;
VPRINTK("ENTER\n");
@@ -694,10 +700,7 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
static int ahci_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- void *port_mmio = (void *) ap->ioaddr.cmd_addr;
-
- writel(1, port_mmio + PORT_SCR_ACT);
- readl(port_mmio + PORT_SCR_ACT); /* flush */
+ void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr;
writel(1, port_mmio + PORT_CMD_ISSUE);
readl(port_mmio + PORT_CMD_ISSUE); /* flush */
@@ -882,7 +885,7 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
{
struct ahci_host_priv *hpriv = probe_ent->private_data;
struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
- void *mmio = probe_ent->mmio_base;
+ void __iomem *mmio = probe_ent->mmio_base;
u32 vers, cap, impl, speed;
const char *speed_s;
u16 cc;
@@ -955,7 +958,7 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
struct ata_probe_ent *probe_ent = NULL;
struct ahci_host_priv *hpriv;
unsigned long base;
- void *mmio_base;
+ void __iomem *mmio_base;
unsigned int board_idx = (unsigned int) ent->driver_data;
int have_msi, pci_dev_busy = 0;
int rc;
@@ -992,8 +995,7 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->dev = pci_dev_to_dev(pdev);
INIT_LIST_HEAD(&probe_ent->node);
- mmio_base = ioremap(pci_resource_start(pdev, AHCI_PCI_BAR),
- pci_resource_len(pdev, AHCI_PCI_BAR));
+ mmio_base = pci_iomap(pdev, AHCI_PCI_BAR, 0);
if (mmio_base == NULL) {
rc = -ENOMEM;
goto err_out_free_ent;
@@ -1037,7 +1039,7 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
err_out_hpriv:
kfree(hpriv);
err_out_iounmap:
- iounmap(mmio_base);
+ pci_iounmap(pdev, mmio_base);
err_out_free_ent:
kfree(probe_ent);
err_out_msi:
@@ -1077,7 +1079,8 @@ static void ahci_remove_one (struct pci_dev *pdev)
scsi_host_put(ap->host);
}
- host_set->ops->host_stop(host_set);
+ kfree(hpriv);
+ pci_iounmap(pdev, host_set->mmio_base);
kfree(host_set);
if (have_msi)
@@ -1094,7 +1097,6 @@ static int __init ahci_init(void)
return pci_module_init(&ahci_pci_driver);
}
-
static void __exit ahci_exit(void)
{
pci_unregister_driver(&ahci_pci_driver);
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-26 18:32:15 +0000