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Diffstat (limited to 'drivers/ata/acard-ahci.c')
-rw-r--r--drivers/ata/acard-ahci.c109
1 files changed, 30 insertions, 79 deletions
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index fd665d919df2..3999305b5356 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* acard-ahci.c - ACard AHCI SATA support
@@ -8,35 +9,17 @@
*
* Copyright 2010 Red Hat, Inc.
*
- *
- * 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.*
+ * as Documentation/driver-api/libata.rst
*
* AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
* http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
- *
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
@@ -73,17 +56,17 @@ struct acard_sg {
__le32 size; /* bit 31 (EOT) max==0x10000 (64k) */
};
-static void acard_ahci_qc_prep(struct ata_queued_cmd *qc);
-static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
+static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc);
+static void acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
static int acard_ahci_port_start(struct ata_port *ap);
static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int acard_ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
static int acard_ahci_pci_device_resume(struct pci_dev *pdev);
#endif
-static struct scsi_host_template acard_ahci_sht = {
+static const struct scsi_host_template acard_ahci_sht = {
AHCI_SHT("acard-ahci"),
};
@@ -119,13 +102,13 @@ static struct pci_driver acard_ahci_pci_driver = {
.id_table = acard_ahci_pci_tbl,
.probe = acard_ahci_init_one,
.remove = ata_pci_remove_one,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
.suspend = acard_ahci_pci_device_suspend,
.resume = acard_ahci_pci_device_resume,
#endif
};
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int acard_ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
struct ata_host *host = pci_get_drvdata(pdev);
@@ -177,37 +160,6 @@ static int acard_ahci_pci_device_resume(struct pci_dev *pdev)
}
#endif
-static int acard_ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
-{
- int rc;
-
- if (using_dac &&
- !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (rc) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev,
- "64-bit DMA enable failed\n");
- return rc;
- }
- }
- } else {
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev, "32-bit DMA enable failed\n");
- return rc;
- }
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev,
- "32-bit consistent DMA enable failed\n");
- return rc;
- }
- }
- return 0;
-}
-
static void acard_ahci_pci_print_info(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
@@ -233,8 +185,6 @@ static unsigned int acard_ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
struct acard_sg *acard_sg = cmd_tbl + AHCI_CMD_TBL_HDR_SZ;
unsigned int si, last_si = 0;
- VPRINTK("ENTER\n");
-
/*
* Next, the S/G list.
*/
@@ -258,7 +208,7 @@ static unsigned int acard_ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
return si;
}
-static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
+static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ahci_port_priv *pp = ap->private_data;
@@ -266,13 +216,12 @@ static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
void *cmd_tbl;
u32 opts;
const u32 cmd_fis_len = 5; /* five dwords */
- unsigned int n_elem;
/*
* Fill in command table information. First, the header,
* a SATA Register - Host to Device command FIS.
*/
- cmd_tbl = pp->cmd_tbl + qc->tag * AHCI_CMD_TBL_SZ;
+ cmd_tbl = pp->cmd_tbl + qc->hw_tag * AHCI_CMD_TBL_SZ;
ata_tf_to_fis(&qc->tf, qc->dev->link->pmp, 1, cmd_tbl);
if (is_atapi) {
@@ -280,9 +229,8 @@ static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
memcpy(cmd_tbl + AHCI_CMD_TBL_CDB, qc->cdb, qc->dev->cdb_len);
}
- n_elem = 0;
if (qc->flags & ATA_QCFLAG_DMAMAP)
- n_elem = acard_ahci_fill_sg(qc, cmd_tbl);
+ acard_ahci_fill_sg(qc, cmd_tbl);
/*
* Fill in command slot information.
@@ -295,10 +243,12 @@ static void acard_ahci_qc_prep(struct ata_queued_cmd *qc)
if (is_atapi)
opts |= AHCI_CMD_ATAPI | AHCI_CMD_PREFETCH;
- ahci_fill_cmd_slot(pp, qc->tag, opts);
+ ahci_fill_cmd_slot(pp, qc->hw_tag, opts);
+
+ return AC_ERR_OK;
}
-static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
+static void acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
{
struct ahci_port_priv *pp = qc->ap->private_data;
u8 *rx_fis = pp->rx_fis;
@@ -313,13 +263,11 @@ static bool acard_ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
* Setup FIS.
*/
if (qc->tf.protocol == ATA_PROT_PIO && qc->dma_dir == DMA_FROM_DEVICE &&
- !(qc->flags & ATA_QCFLAG_FAILED)) {
+ !(qc->flags & ATA_QCFLAG_EH)) {
ata_tf_from_fis(rx_fis + RX_FIS_PIO_SETUP, &qc->result_tf);
- qc->result_tf.command = (rx_fis + RX_FIS_PIO_SETUP)[15];
+ qc->result_tf.status = (rx_fis + RX_FIS_PIO_SETUP)[15];
} else
ata_tf_from_fis(rx_fis + RX_FIS_D2H_REG, &qc->result_tf);
-
- return true;
}
static int acard_ahci_port_start(struct ata_port *ap)
@@ -361,7 +309,6 @@ static int acard_ahci_port_start(struct ata_port *ap)
mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL);
if (!mem)
return -ENOMEM;
- memset(mem, 0, dma_sz);
/*
* First item in chunk of DMA memory: 32-slot command table,
@@ -411,8 +358,6 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
struct ata_host *host;
int n_ports, i, rc;
- VPRINTK("ENTER\n");
-
WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
ata_print_version_once(&pdev->dev, DRV_VERSION);
@@ -425,7 +370,7 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
/* AHCI controllers often implement SFF compatible interface.
* Grab all PCI BARs just in case.
*/
- rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
+ rc = pcim_request_all_regions(pdev, DRV_NAME);
if (rc == -EBUSY)
pcim_pin_device(pdev);
if (rc)
@@ -434,15 +379,19 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv)
return -ENOMEM;
+
+ hpriv->irq = pdev->irq;
hpriv->flags |= (unsigned long)pi.private_data;
if (!(hpriv->flags & AHCI_HFLAG_NO_MSI))
pci_enable_msi(pdev);
- hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
+ hpriv->mmio = pcim_iomap(pdev, AHCI_PCI_BAR, 0);
+ if (!hpriv->mmio)
+ return -ENOMEM;
/* save initial config */
- ahci_save_initial_config(&pdev->dev, hpriv, 0, 0);
+ ahci_save_initial_config(&pdev->dev, hpriv);
/* prepare host */
if (hpriv->cap & HOST_CAP_NCQ)
@@ -487,9 +436,12 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
}
/* initialize adapter */
- rc = acard_ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
- if (rc)
+ rc = dma_set_mask_and_coherent(&pdev->dev,
+ DMA_BIT_MASK((hpriv->cap & HOST_CAP_64) ? 64 : 32));
+ if (rc) {
+ dev_err(&pdev->dev, "DMA enable failed\n");
return rc;
+ }
rc = ahci_reset_controller(host);
if (rc)
@@ -499,8 +451,7 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
acard_ahci_pci_print_info(host);
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
- &acard_ahci_sht);
+ return ahci_host_activate(host, &acard_ahci_sht);
}
module_pci_driver(acard_ahci_pci_driver);
generated by cgit (git 2.34.1) at 2025-12-25 12:59:56 +0000