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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/ata/ahci.c

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/*
* ahci.c - AHCI SATA support
*
* Maintained by: Jeff Garzik <jgarzik@pobox.com>
* Please ALWAYS copy linux-ide@vger.kernel.org
* on emails.
*
* Copyright 2004-2005 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.*
*
* 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>
#include <linux/dma-mapping.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/gfp.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <linux/libata.h>
#include "ahci.h"
#define DRV_NAME "ahci"
#define DRV_VERSION "3.0"
enum {
AHCI_PCI_BAR = 5,
};
enum board_ids {
/* board IDs by feature in alphabetical order */
board_ahci,
board_ahci_ign_iferr,
board_ahci_nosntf,
/* board IDs for specific chipsets in alphabetical order */
board_ahci_mcp65,
board_ahci_mcp77,
board_ahci_mcp89,
board_ahci_mv,
board_ahci_sb600,
board_ahci_sb700, /* for SB700 and SB800 */
board_ahci_vt8251,
/* aliases */
board_ahci_mcp_linux = board_ahci_mcp65,
board_ahci_mcp67 = board_ahci_mcp65,
board_ahci_mcp73 = board_ahci_mcp65,
board_ahci_mcp79 = board_ahci_mcp77,
};
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline);
#ifdef CONFIG_PM
static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
static int ahci_pci_device_resume(struct pci_dev *pdev);
#endif
static struct ata_port_operations ahci_vt8251_ops = {
.inherits = &ahci_ops,
.hardreset = ahci_vt8251_hardreset,
};
static struct ata_port_operations ahci_p5wdh_ops = {
.inherits = &ahci_ops,
.hardreset = ahci_p5wdh_hardreset,
};
static struct ata_port_operations ahci_sb600_ops = {
.inherits = &ahci_ops,
.softreset = ahci_sb600_softreset,
.pmp_softreset = ahci_sb600_softreset,
};
#define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
static const struct ata_port_info ahci_port_info[] = {
/* by features */
[board_ahci] =
{
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_ign_iferr] =
{
AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_nosntf] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
/* by chipsets */
[board_ahci_mcp65] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
AHCI_HFLAG_YES_NCQ),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_mcp77] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_mcp89] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_mv] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
[board_ahci_sb600] =
{
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
AHCI_HFLAG_32BIT_ONLY),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_sb600_ops,
},
[board_ahci_sb700] = /* for SB700 and SB800 */
{
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_sb600_ops,
},
[board_ahci_vt8251] =
{
AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_vt8251_ops,
},
};
static const struct pci_device_id ahci_pci_tbl[] = {
/* Intel */
{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
{ PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
/* JMicron 360/1/3/5/6, match class to avoid IDE function */
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
/* AMD */
{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
/* AMD is using RAID class only for ahci controllers */
{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
/* VIA */
{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
/* NVIDIA */
{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */
{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */
{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */
{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */
{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */
/* SiS */
{ PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
{ PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */
{ PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
/* Marvell */
{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
/* Promise */
{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
/* Generic, PCI class code for AHCI */
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
{ } /* terminate list */
};
static struct pci_driver ahci_pci_driver = {
.name = DRV_NAME,
.id_table = ahci_pci_tbl,
.probe = ahci_init_one,
.remove = ata_pci_remove_one,
#ifdef CONFIG_PM
.suspend = ahci_pci_device_suspend,
.resume = ahci_pci_device_resume,
#endif
};
#if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
static int marvell_enable;
#else
static int marvell_enable = 1;
#endif
module_param(marvell_enable, int, 0644);
MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
static void ahci_pci_save_initial_config(struct pci_dev *pdev,
struct ahci_host_priv *hpriv)
{
unsigned int force_port_map = 0;
unsigned int mask_port_map = 0;
if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
dev_info(&pdev->dev, "JMB361 has only one port\n");
force_port_map = 1;
}
/*
* Temporary Marvell 6145 hack: PATA port presence
* is asserted through the standard AHCI port
* presence register, as bit 4 (counting from 0)
*/
if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
if (pdev->device == 0x6121)
mask_port_map = 0x3;
else
mask_port_map = 0xf;
dev_info(&pdev->dev,
"Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
}
ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
mask_port_map);
}
static int ahci_pci_reset_controller(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
ahci_reset_controller(host);
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
struct ahci_host_priv *hpriv = host->private_data;
u16 tmp16;
/* configure PCS */
pci_read_config_word(pdev, 0x92, &tmp16);
if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
tmp16 |= hpriv->port_map;
pci_write_config_word(pdev, 0x92, tmp16);
}
}
return 0;
}
static void ahci_pci_init_controller(struct ata_host *host)
{
struct ahci_host_priv *hpriv = host->private_data;
struct pci_dev *pdev = to_pci_dev(host->dev);
void __iomem *port_mmio;
u32 tmp;
int mv;
if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
if (pdev->device == 0x6121)
mv = 2;
else
mv = 4;
port_mmio = __ahci_port_base(host, mv);
writel(0, port_mmio + PORT_IRQ_MASK);
/* clear port IRQ */
tmp = readl(port_mmio + PORT_IRQ_STAT);
VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
if (tmp)
writel(tmp, port_mmio + PORT_IRQ_STAT);
}
ahci_init_controller(host);
}
static int ahci_sb600_check_ready(struct ata_link *link)
{
void __iomem *port_mmio = ahci_port_base(link->ap);
u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
u32 irq_status = readl(port_mmio + PORT_IRQ_STAT);
/*
* There is no need to check TFDATA if BAD PMP is found due to HW bug,
* which can save timeout delay.
*/
if (irq_status & PORT_IRQ_BAD_PMP)
return -EIO;
return ata_check_ready(status);
}
static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
struct ata_port *ap = link->ap;
void __iomem *port_mmio = ahci_port_base(ap);
int pmp = sata_srst_pmp(link);
int rc;
u32 irq_sts;
DPRINTK("ENTER\n");
rc = ahci_do_softreset(link, class, pmp, deadline,
ahci_sb600_check_ready);
/*
* Soft reset fails on some ATI chips with IPMS set when PMP
* is enabled but SATA HDD/ODD is connected to SATA port,
* do soft reset again to port 0.
*/
if (rc == -EIO) {
irq_sts = readl(port_mmio + PORT_IRQ_STAT);
if (irq_sts & PORT_IRQ_BAD_PMP) {
ata_link_printk(link, KERN_WARNING,
"applying SB600 PMP SRST workaround "
"and retrying\n");
rc = ahci_do_softreset(link, class, 0, deadline,
ahci_check_ready);
}
}
return rc;
}
static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
struct ata_port *ap = link->ap;
bool online;
int rc;
DPRINTK("ENTER\n");
ahci_stop_engine(ap);
rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
deadline, &online, NULL);
ahci_start_engine(ap);
DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
/* vt8251 doesn't clear BSY on signature FIS reception,
* request follow-up softreset.
*/
return online ? -EAGAIN : rc;
}
static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
struct ata_port *ap = link->ap;
struct ahci_port_priv *pp = ap->private_data;
u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
struct ata_taskfile tf;
bool online;
int rc;
ahci_stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(link->device, &tf);
tf.command = 0x80;
ata_tf_to_fis(&tf, 0, 0, d2h_fis);
rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
deadline, &online, NULL);
ahci_start_engine(ap);
/* The pseudo configuration device on SIMG4726 attached to
* ASUS P5W-DH Deluxe doesn't send signature FIS after
* hardreset if no device is attached to the first downstream
* port && the pseudo device locks up on SRST w/ PMP==0. To
* work around this, wait for !BSY only briefly. If BSY isn't
* cleared, perform CLO and proceed to IDENTIFY (achieved by
* ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
*
* Wait for two seconds. Devices attached to downstream port
* which can't process the following IDENTIFY after this will
* have to be reset again. For most cases, this should
* suffice while making probing snappish enough.
*/
if (online) {
rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
ahci_check_ready);
if (rc)
ahci_kick_engine(ap);
}
return rc;
}
#ifdef CONFIG_PM
static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
struct ahci_host_priv *hpriv = host->private_data;
void __iomem *mmio = hpriv->mmio;
u32 ctl;
if (mesg.event & PM_EVENT_SUSPEND &&
hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
dev_printk(KERN_ERR, &pdev->dev,
"BIOS update required for suspend/resume\n");
return -EIO;
}
if (mesg.event & PM_EVENT_SLEEP) {
/* AHCI spec rev1.1 section 8.3.3:
* Software must disable interrupts prior to requesting a
* transition of the HBA to D3 state.
*/
ctl = readl(mmio + HOST_CTL);
ctl &= ~HOST_IRQ_EN;
writel(ctl, mmio + HOST_CTL);
readl(mmio + HOST_CTL); /* flush */
}
return ata_pci_device_suspend(pdev, mesg);
}
static int ahci_pci_device_resume(struct pci_dev *pdev)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
int rc;
rc = ata_pci_device_do_resume(pdev);
if (rc)
return rc;
if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
rc = ahci_pci_reset_controller(host);
if (rc)
return rc;
ahci_pci_init_controller(host);
}
ata_host_resume(host);
return 0;
}
#endif
static int 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_printk(KERN_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_printk(KERN_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_printk(KERN_ERR, &pdev->dev,
"32-bit consistent DMA enable failed\n");
return rc;
}
}
return 0;
}
static void ahci_pci_print_info(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
u16 cc;
const char *scc_s;
pci_read_config_word(pdev, 0x0a, &cc);
if (cc == PCI_CLASS_STORAGE_IDE)
scc_s = "IDE";
else if (cc == PCI_CLASS_STORAGE_SATA)
scc_s = "SATA";
else if (cc == PCI_CLASS_STORAGE_RAID)
scc_s = "RAID";
else
scc_s = "unknown";
ahci_print_info(host, scc_s);
}
/* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
* hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't
* support PMP and the 4726 either directly exports the device
* attached to the first downstream port or acts as a hardware storage
* controller and emulate a single ATA device (can be RAID 0/1 or some
* other configuration).
*
* When there's no device attached to the first downstream port of the
* 4726, "Config Disk" appears, which is a pseudo ATA device to
* configure the 4726. However, ATA emulation of the device is very
* lame. It doesn't send signature D2H Reg FIS after the initial
* hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
*
* The following function works around the problem by always using
* hardreset on the port and not depending on receiving signature FIS
* afterward. If signature FIS isn't received soon, ATA class is
* assumed without follow-up softreset.
*/
static void ahci_p5wdh_workaround(struct ata_host *host)
{
static struct dmi_system_id sysids[] = {
{
.ident = "P5W DH Deluxe",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"ASUSTEK COMPUTER INC"),
DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
},
},
{ }
};
struct pci_dev *pdev = to_pci_dev(host->dev);
if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
dmi_check_system(sysids)) {
struct ata_port *ap = host->ports[1];
dev_printk(KERN_INFO, &pdev->dev, "enabling ASUS P5W DH "
"Deluxe on-board SIMG4726 workaround\n");
ap->ops = &ahci_p5wdh_ops;
ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
}
}
/* only some SB600 ahci controllers can do 64bit DMA */
static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
{
static const struct dmi_system_id sysids[] = {
/*
* The oldest version known to be broken is 0901 and
* working is 1501 which was released on 2007-10-26.
* Enable 64bit DMA on 1501 and anything newer.
*
* Please read bko#9412 for more info.
*/
{
.ident = "ASUS M2A-VM",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"ASUSTeK Computer INC."),
DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
},
.driver_data = "20071026", /* yyyymmdd */
},
/*
* All BIOS versions for the MSI K9A2 Platinum (MS-7376)
* support 64bit DMA.
*
* BIOS versions earlier than 1.5 had the Manufacturer DMI
* fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
* This spelling mistake was fixed in BIOS version 1.5, so
* 1.5 and later have the Manufacturer as
* "MICRO-STAR INTERNATIONAL CO.,LTD".
* So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
*
* BIOS versions earlier than 1.9 had a Board Product Name
* DMI field of "MS-7376". This was changed to be
* "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
* match on DMI_BOARD_NAME of "MS-7376".
*/
{
.ident = "MSI K9A2 Platinum",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"MICRO-STAR INTER"),
DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
},
},
{ }
};
const struct dmi_system_id *match;
int year, month, date;
char buf[9];
match = dmi_first_match(sysids);
if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
!match)
return false;
if (!match->driver_data)
goto enable_64bit;
dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
if (strcmp(buf, match->driver_data) >= 0)
goto enable_64bit;
else {
dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, "
"forcing 32bit DMA, update BIOS\n", match->ident);
return false;
}
enable_64bit:
dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
match->ident);
return true;
}
static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
{
static const struct dmi_system_id broken_systems[] = {
{
.ident = "HP Compaq nx6310",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
},
/* PCI slot number of the controller */
.driver_data = (void *)0x1FUL,
},
{
.ident = "HP Compaq 6720s",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
},
/* PCI slot number of the controller */
.driver_data = (void *)0x1FUL,
},
{ } /* terminate list */
};
const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
if (dmi) {
unsigned long slot = (unsigned long)dmi->driver_data;
/* apply the quirk only to on-board controllers */
return slot == PCI_SLOT(pdev->devfn);
}
return false;
}
static bool ahci_broken_suspend(struct pci_dev *pdev)
{
static const struct dmi_system_id sysids[] = {
/*
* On HP dv[4-6] and HDX18 with earlier BIOSen, link
* to the harddisk doesn't become online after
* resuming from STR. Warn and fail suspend.
*
* http://bugzilla.kernel.org/show_bug.cgi?id=12276
*
* Use dates instead of versions to match as HP is
* apparently recycling both product and version
* strings.
*
* http://bugzilla.kernel.org/show_bug.cgi?id=15462
*/
{
.ident = "dv4",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME,
"HP Pavilion dv4 Notebook PC"),
},
.driver_data = "20090105", /* F.30 */
},
{
.ident = "dv5",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME,
"HP Pavilion dv5 Notebook PC"),
},
.driver_data = "20090506", /* F.16 */
},
{
.ident = "dv6",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME,
"HP Pavilion dv6 Notebook PC"),
},
.driver_data = "20090423", /* F.21 */
},
{
.ident = "HDX18",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME,
"HP HDX18 Notebook PC"),
},
.driver_data = "20090430", /* F.23 */
},
/*
* Acer eMachines G725 has the same problem. BIOS
* V1.03 is known to be broken. V3.04 is known to
* work. Inbetween, there are V1.06, V2.06 and V3.03
* that we don't have much idea about. For now,
* blacklist anything older than V3.04.
*
* http://bugzilla.kernel.org/show_bug.cgi?id=15104
*/
{
.ident = "G725",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
},
.driver_data = "20091216", /* V3.04 */
},
{ } /* terminate list */
};
const struct dmi_system_id *dmi = dmi_first_match(sysids);
int year, month, date;
char buf[9];
if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
return false;
dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
return strcmp(buf, dmi->driver_data) < 0;
}
static bool ahci_broken_online(struct pci_dev *pdev)
{
#define ENCODE_BUSDEVFN(bus, slot, func) \
(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
static const struct dmi_system_id sysids[] = {
/*
* There are several gigabyte boards which use
* SIMG5723s configured as hardware RAID. Certain
* 5723 firmware revisions shipped there keep the link
* online but fail to answer properly to SRST or
* IDENTIFY when no device is attached downstream
* causing libata to retry quite a few times leading
* to excessive detection delay.
*
* As these firmwares respond to the second reset try
* with invalid device signature, considering unknown
* sig as offline works around the problem acceptably.
*/
{
.ident = "EP45-DQ6",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
},
.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
},
{
.ident = "EP45-DS5",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR,
"Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
},
.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
},
{ } /* terminate list */
};
#undef ENCODE_BUSDEVFN
const struct dmi_system_id *dmi = dmi_first_match(sysids);
unsigned int val;
if (!dmi)
return false;
val = (unsigned long)dmi->driver_data;
return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
}
#ifdef CONFIG_ATA_ACPI
static void ahci_gtf_filter_workaround(struct ata_host *host)
{
static const struct dmi_system_id sysids[] = {
/*
* Aspire 3810T issues a bunch of SATA enable commands
* via _GTF including an invalid one and one which is
* rejected by the device. Among the successful ones
* is FPDMA non-zero offset enable which when enabled
* only on the drive side leads to NCQ command
* failures. Filter it out.
*/
{
.ident = "Aspire 3810T",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
},
.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
},
{ }
};
const struct dmi_system_id *dmi = dmi_first_match(sysids);
unsigned int filter;
int i;
if (!dmi)
return;
filter = (unsigned long)dmi->driver_data;
dev_printk(KERN_INFO, host->dev,
"applying extra ACPI _GTF filter 0x%x for %s\n",
filter, dmi->ident);
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
struct ata_link *link;
struct ata_device *dev;
ata_for_each_link(link, ap, EDGE)
ata_for_each_dev(dev, link, ALL)
dev->gtf_filter |= filter;
}
}
#else
static inline void ahci_gtf_filter_workaround(struct ata_host *host)
{}
#endif
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version;
unsigned int board_id = ent->driver_data;
struct ata_port_info pi = ahci_port_info[board_id];
const struct ata_port_info *ppi[] = { &pi, NULL };
struct device *dev = &pdev->dev;
struct ahci_host_priv *hpriv;
struct ata_host *host;
int n_ports, i, rc;
VPRINTK("ENTER\n");
WARN_ON(ATA_MAX_QUEUE > AHCI_MAX_CMDS);
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
/* The AHCI driver can only drive the SATA ports, the PATA driver
can drive them all so if both drivers are selected make sure
AHCI stays out of the way */
if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
return -ENODEV;
/*
* For some reason, MCP89 on MacBook 7,1 doesn't work with
* ahci, use ata_generic instead.
*/
if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
pdev->subsystem_device == 0xcb89)
return -ENODEV;
/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
* At the moment, we can only use the AHCI mode. Let the users know
* that for SAS drives they're out of luck.
*/
if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
dev_printk(KERN_INFO, &pdev->dev, "PDC42819 "
"can only drive SATA devices with this driver\n");
/* acquire resources */
rc = pcim_enable_device(pdev);
if (rc)
return rc;
/* 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);
if (rc == -EBUSY)
pcim_pin_device(pdev);
if (rc)
return rc;
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == 0x2652 || pdev->device == 0x2653)) {
u8 map;
/* ICH6s share the same PCI ID for both piix and ahci
* modes. Enabling ahci mode while MAP indicates
* combined mode is a bad idea. Yield to ata_piix.
*/
pci_read_config_byte(pdev, ICH_MAP, &map);
if (map & 0x3) {
dev_printk(KERN_INFO, &pdev->dev, "controller is in "
"combined mode, can't enable AHCI mode\n");
return -ENODEV;
}
}
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv)
return -ENOMEM;
hpriv->flags |= (unsigned long)pi.private_data;
/* MCP65 revision A1 and A2 can't do MSI */
if (board_id == board_ahci_mcp65 &&
(pdev->revision == 0xa1 || pdev->revision == 0xa2))
hpriv->flags |= AHCI_HFLAG_NO_MSI;
/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
/* only some SB600s can do 64bit DMA */
if (ahci_sb600_enable_64bit(pdev))
hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
pci_intx(pdev, 1);
hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
/* save initial config */
ahci_pci_save_initial_config(pdev, hpriv);
/* prepare host */
if (hpriv->cap & HOST_CAP_NCQ) {
pi.flags |= ATA_FLAG_NCQ;
/*
* Auto-activate optimization is supposed to be
* supported on all AHCI controllers indicating NCQ
* capability, but it seems to be broken on some
* chipsets including NVIDIAs.
*/
if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
pi.flags |= ATA_FLAG_FPDMA_AA;
}
if (hpriv->cap & HOST_CAP_PMP)
pi.flags |= ATA_FLAG_PMP;
ahci_set_em_messages(hpriv, &pi);
if (ahci_broken_system_poweroff(pdev)) {
pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
dev_info(&pdev->dev,
"quirky BIOS, skipping spindown on poweroff\n");
}
if (ahci_broken_suspend(pdev)) {
hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
dev_printk(KERN_WARNING, &pdev->dev,
"BIOS update required for suspend/resume\n");
}
if (ahci_broken_online(pdev)) {
hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
dev_info(&pdev->dev,
"online status unreliable, applying workaround\n");
}
/* CAP.NP sometimes indicate the index of the last enabled
* port, at other times, that of the last possible port, so
* determining the maximum port number requires looking at
* both CAP.NP and port_map.
*/
n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
if (!host)
return -ENOMEM;
host->private_data = hpriv;
if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
host->flags |= ATA_HOST_PARALLEL_SCAN;
else
printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
if (pi.flags & ATA_FLAG_EM)
ahci_reset_em(host);
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar");
ata_port_pbar_desc(ap, AHCI_PCI_BAR,
0x100 + ap->port_no * 0x80, "port");
/* set initial link pm policy */
ap->pm_policy = NOT_AVAILABLE;
/* set enclosure management message type */
if (ap->flags & ATA_FLAG_EM)
ap->em_message_type = hpriv->em_msg_type;
/* disabled/not-implemented port */
if (!(hpriv->port_map & (1 << i)))
ap->ops = &ata_dummy_port_ops;
}
/* apply workaround for ASUS P5W DH Deluxe mainboard */
ahci_p5wdh_workaround(host);
/* apply gtf filter quirk */
ahci_gtf_filter_workaround(host);
/* initialize adapter */
rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
if (rc)
return rc;
rc = ahci_pci_reset_controller(host);
if (rc)
return rc;
ahci_pci_init_controller(host);
ahci_pci_print_info(host);
pci_set_master(pdev);
return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
&ahci_sht);
}
static int __init ahci_init(void)
{
return pci_register_driver(&ahci_pci_driver);
}
static void __exit ahci_exit(void)
{
pci_unregister_driver(&ahci_pci_driver);
}
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("AHCI SATA low-level driver");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
MODULE_VERSION(DRV_VERSION);
module_init(ahci_init);
module_exit(ahci_exit);
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