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v3.1
 
   1/*
   2 *  ahci.c - AHCI SATA support
   3 *
   4 *  Maintained by:  Jeff Garzik <jgarzik@pobox.com>
   5 *    		    Please ALWAYS copy linux-ide@vger.kernel.org
   6 *		    on emails.
   7 *
   8 *  Copyright 2004-2005 Red Hat, Inc.
   9 *
  10 *
  11 *  This program is free software; you can redistribute it and/or modify
  12 *  it under the terms of the GNU General Public License as published by
  13 *  the Free Software Foundation; either version 2, or (at your option)
  14 *  any later version.
  15 *
  16 *  This program is distributed in the hope that it will be useful,
  17 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 *  GNU General Public License for more details.
  20 *
  21 *  You should have received a copy of the GNU General Public License
  22 *  along with this program; see the file COPYING.  If not, write to
  23 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  24 *
  25 *
  26 * libata documentation is available via 'make {ps|pdf}docs',
  27 * as Documentation/DocBook/libata.*
  28 *
  29 * AHCI hardware documentation:
  30 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
  31 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
  32 *
  33 */
  34
  35#include <linux/kernel.h>
  36#include <linux/module.h>
  37#include <linux/pci.h>
  38#include <linux/init.h>
  39#include <linux/blkdev.h>
  40#include <linux/delay.h>
  41#include <linux/interrupt.h>
  42#include <linux/dma-mapping.h>
  43#include <linux/device.h>
  44#include <linux/dmi.h>
  45#include <linux/gfp.h>
 
  46#include <scsi/scsi_host.h>
  47#include <scsi/scsi_cmnd.h>
  48#include <linux/libata.h>
 
 
  49#include "ahci.h"
  50
  51#define DRV_NAME	"ahci"
  52#define DRV_VERSION	"3.0"
  53
  54enum {
  55	AHCI_PCI_BAR		= 5,
 
 
 
 
 
  56};
  57
  58enum board_ids {
  59	/* board IDs by feature in alphabetical order */
  60	board_ahci,
  61	board_ahci_ign_iferr,
 
 
 
  62	board_ahci_nosntf,
  63	board_ahci_yes_fbs,
  64
  65	/* board IDs for specific chipsets in alphabetical order */
 
 
  66	board_ahci_mcp65,
  67	board_ahci_mcp77,
  68	board_ahci_mcp89,
  69	board_ahci_mv,
  70	board_ahci_sb600,
  71	board_ahci_sb700,	/* for SB700 and SB800 */
  72	board_ahci_vt8251,
  73
 
 
 
 
 
 
  74	/* aliases */
  75	board_ahci_mcp_linux	= board_ahci_mcp65,
  76	board_ahci_mcp67	= board_ahci_mcp65,
  77	board_ahci_mcp73	= board_ahci_mcp65,
  78	board_ahci_mcp79	= board_ahci_mcp77,
  79};
  80
  81static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 
 
  82static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
  83				 unsigned long deadline);
 
 
 
 
  84static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
  85				unsigned long deadline);
  86#ifdef CONFIG_PM
  87static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
  88static int ahci_pci_device_resume(struct pci_dev *pdev);
 
 
 
  89#endif
 
  90
  91static struct scsi_host_template ahci_sht = {
  92	AHCI_SHT("ahci"),
  93};
  94
  95static struct ata_port_operations ahci_vt8251_ops = {
  96	.inherits		= &ahci_ops,
  97	.hardreset		= ahci_vt8251_hardreset,
  98};
  99
 100static struct ata_port_operations ahci_p5wdh_ops = {
 101	.inherits		= &ahci_ops,
 102	.hardreset		= ahci_p5wdh_hardreset,
 103};
 104
 105#define AHCI_HFLAGS(flags)	.private_data	= (void *)(flags)
 
 
 
 106
 107static const struct ata_port_info ahci_port_info[] = {
 108	/* by features */
 109	[board_ahci] =
 110	{
 111		.flags		= AHCI_FLAG_COMMON,
 112		.pio_mask	= ATA_PIO4,
 113		.udma_mask	= ATA_UDMA6,
 114		.port_ops	= &ahci_ops,
 115	},
 116	[board_ahci_ign_iferr] =
 117	{
 118		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
 119		.flags		= AHCI_FLAG_COMMON,
 120		.pio_mask	= ATA_PIO4,
 121		.udma_mask	= ATA_UDMA6,
 122		.port_ops	= &ahci_ops,
 123	},
 124	[board_ahci_nosntf] =
 125	{
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 126		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
 127		.flags		= AHCI_FLAG_COMMON,
 128		.pio_mask	= ATA_PIO4,
 129		.udma_mask	= ATA_UDMA6,
 130		.port_ops	= &ahci_ops,
 131	},
 132	[board_ahci_yes_fbs] =
 133	{
 134		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
 135		.flags		= AHCI_FLAG_COMMON,
 136		.pio_mask	= ATA_PIO4,
 137		.udma_mask	= ATA_UDMA6,
 138		.port_ops	= &ahci_ops,
 139	},
 140	/* by chipsets */
 141	[board_ahci_mcp65] =
 142	{
 
 
 
 
 
 
 
 
 
 
 
 
 143		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
 144				 AHCI_HFLAG_YES_NCQ),
 145		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
 146		.pio_mask	= ATA_PIO4,
 147		.udma_mask	= ATA_UDMA6,
 148		.port_ops	= &ahci_ops,
 149	},
 150	[board_ahci_mcp77] =
 151	{
 152		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
 153		.flags		= AHCI_FLAG_COMMON,
 154		.pio_mask	= ATA_PIO4,
 155		.udma_mask	= ATA_UDMA6,
 156		.port_ops	= &ahci_ops,
 157	},
 158	[board_ahci_mcp89] =
 159	{
 160		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
 161		.flags		= AHCI_FLAG_COMMON,
 162		.pio_mask	= ATA_PIO4,
 163		.udma_mask	= ATA_UDMA6,
 164		.port_ops	= &ahci_ops,
 165	},
 166	[board_ahci_mv] =
 167	{
 168		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
 169				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
 170		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
 171		.pio_mask	= ATA_PIO4,
 172		.udma_mask	= ATA_UDMA6,
 173		.port_ops	= &ahci_ops,
 174	},
 175	[board_ahci_sb600] =
 176	{
 177		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
 178				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
 179				 AHCI_HFLAG_32BIT_ONLY),
 180		.flags		= AHCI_FLAG_COMMON,
 181		.pio_mask	= ATA_PIO4,
 182		.udma_mask	= ATA_UDMA6,
 183		.port_ops	= &ahci_pmp_retry_srst_ops,
 184	},
 185	[board_ahci_sb700] =	/* for SB700 and SB800 */
 186	{
 187		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
 188		.flags		= AHCI_FLAG_COMMON,
 189		.pio_mask	= ATA_PIO4,
 190		.udma_mask	= ATA_UDMA6,
 191		.port_ops	= &ahci_pmp_retry_srst_ops,
 192	},
 193	[board_ahci_vt8251] =
 194	{
 195		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
 196		.flags		= AHCI_FLAG_COMMON,
 197		.pio_mask	= ATA_PIO4,
 198		.udma_mask	= ATA_UDMA6,
 199		.port_ops	= &ahci_vt8251_ops,
 200	},
 
 
 
 
 
 
 201};
 202
 203static const struct pci_device_id ahci_pci_tbl[] = {
 204	/* Intel */
 
 205	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
 206	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
 207	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
 208	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
 209	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
 210	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
 211	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
 212	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
 213	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
 214	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
 215	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
 216	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
 217	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
 218	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
 219	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
 220	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
 221	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
 222	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
 223	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
 224	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
 225	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
 226	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
 227	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
 228	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */
 229	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
 230	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
 231	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
 232	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
 233	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
 234	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
 235	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
 236	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
 237	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
 238	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
 239	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
 240	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
 241	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */
 242	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
 243	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */
 244	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 245	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
 246	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */
 247	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
 248	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
 249	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
 250	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
 251	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
 252	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
 253	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
 254	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
 255	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
 256	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
 257	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci }, /* Panther Point AHCI */
 258	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
 259	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
 260	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
 261	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci }, /* Panther Point RAID */
 262	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 263
 264	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 265	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 266	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
 
 
 
 
 267
 268	/* ATI */
 269	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
 270	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
 271	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
 272	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
 273	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
 274	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
 275	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
 276
 
 
 
 
 
 277	/* AMD */
 278	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
 
 279	/* AMD is using RAID class only for ahci controllers */
 280	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 281	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
 282
 
 
 
 
 283	/* VIA */
 284	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
 285	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
 286
 287	/* NVIDIA */
 288	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
 289	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
 290	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
 291	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
 292	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
 293	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
 294	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
 295	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
 296	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
 297	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
 298	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
 299	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
 300	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
 301	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
 302	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
 303	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
 304	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
 305	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
 306	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
 307	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
 308	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
 309	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
 310	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
 311	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
 312	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
 313	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
 314	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
 315	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
 316	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
 317	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
 318	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
 319	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
 320	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
 321	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
 322	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
 323	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
 324	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
 325	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
 326	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
 327	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
 328	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
 329	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
 330	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
 331	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
 332	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
 333	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
 334	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
 335	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
 336	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
 337	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
 338	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
 339	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
 340	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
 341	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
 342	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
 343	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
 344	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
 345	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
 346	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
 347	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
 348	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
 349	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
 350	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
 351	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
 352	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
 353	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
 354	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
 355	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
 356	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
 357	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
 358	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
 359	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
 360	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
 361	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
 362	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
 363	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
 364	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
 365	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
 366	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
 367	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
 368	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
 369	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
 370	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
 371	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
 372
 373	/* SiS */
 374	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
 375	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
 376	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
 377
 
 
 
 378	/* Marvell */
 379	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
 380	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
 381	{ PCI_DEVICE(0x1b4b, 0x9123),
 382	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
 383	  .class_mask = 0xffffff,
 384	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
 385	{ PCI_DEVICE(0x1b4b, 0x9125),
 386	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
 387	{ PCI_DEVICE(0x1b4b, 0x91a3),
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 388	  .driver_data = board_ahci_yes_fbs },
 389
 390	/* Promise */
 391	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 392
 393	/* Generic, PCI class code for AHCI */
 394	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 395	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
 396
 397	{ }	/* terminate list */
 398};
 399
 
 
 
 
 
 400
 401static struct pci_driver ahci_pci_driver = {
 402	.name			= DRV_NAME,
 403	.id_table		= ahci_pci_tbl,
 404	.probe			= ahci_init_one,
 405	.remove			= ata_pci_remove_one,
 406#ifdef CONFIG_PM
 407	.suspend		= ahci_pci_device_suspend,
 408	.resume			= ahci_pci_device_resume,
 409#endif
 410};
 411
 412#if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE)
 413static int marvell_enable;
 414#else
 415static int marvell_enable = 1;
 416#endif
 417module_param(marvell_enable, int, 0644);
 418MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
 419
 
 
 
 420
 421static void ahci_pci_save_initial_config(struct pci_dev *pdev,
 422					 struct ahci_host_priv *hpriv)
 423{
 424	unsigned int force_port_map = 0;
 425	unsigned int mask_port_map = 0;
 426
 427	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
 428		dev_info(&pdev->dev, "JMB361 has only one port\n");
 429		force_port_map = 1;
 430	}
 431
 432	/*
 433	 * Temporary Marvell 6145 hack: PATA port presence
 434	 * is asserted through the standard AHCI port
 435	 * presence register, as bit 4 (counting from 0)
 436	 */
 437	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
 438		if (pdev->device == 0x6121)
 439			mask_port_map = 0x3;
 440		else
 441			mask_port_map = 0xf;
 442		dev_info(&pdev->dev,
 443			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
 444	}
 445
 446	ahci_save_initial_config(&pdev->dev, hpriv, force_port_map,
 447				 mask_port_map);
 448}
 449
 450static int ahci_pci_reset_controller(struct ata_host *host)
 451{
 452	struct pci_dev *pdev = to_pci_dev(host->dev);
 453
 454	ahci_reset_controller(host);
 455
 456	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 457		struct ahci_host_priv *hpriv = host->private_data;
 458		u16 tmp16;
 459
 460		/* configure PCS */
 461		pci_read_config_word(pdev, 0x92, &tmp16);
 462		if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
 463			tmp16 |= hpriv->port_map;
 464			pci_write_config_word(pdev, 0x92, tmp16);
 465		}
 466	}
 467
 468	return 0;
 469}
 470
 471static void ahci_pci_init_controller(struct ata_host *host)
 472{
 473	struct ahci_host_priv *hpriv = host->private_data;
 474	struct pci_dev *pdev = to_pci_dev(host->dev);
 475	void __iomem *port_mmio;
 476	u32 tmp;
 477	int mv;
 478
 479	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
 480		if (pdev->device == 0x6121)
 481			mv = 2;
 482		else
 483			mv = 4;
 484		port_mmio = __ahci_port_base(host, mv);
 485
 486		writel(0, port_mmio + PORT_IRQ_MASK);
 487
 488		/* clear port IRQ */
 489		tmp = readl(port_mmio + PORT_IRQ_STAT);
 490		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
 491		if (tmp)
 492			writel(tmp, port_mmio + PORT_IRQ_STAT);
 493	}
 494
 495	ahci_init_controller(host);
 496}
 497
 498static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
 499				 unsigned long deadline)
 500{
 501	struct ata_port *ap = link->ap;
 
 502	bool online;
 503	int rc;
 504
 505	DPRINTK("ENTER\n");
 506
 507	ahci_stop_engine(ap);
 508
 509	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
 510				 deadline, &online, NULL);
 511
 512	ahci_start_engine(ap);
 513
 514	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
 515
 516	/* vt8251 doesn't clear BSY on signature FIS reception,
 517	 * request follow-up softreset.
 518	 */
 519	return online ? -EAGAIN : rc;
 520}
 521
 522static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
 523				unsigned long deadline)
 524{
 525	struct ata_port *ap = link->ap;
 526	struct ahci_port_priv *pp = ap->private_data;
 
 527	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
 528	struct ata_taskfile tf;
 529	bool online;
 530	int rc;
 531
 532	ahci_stop_engine(ap);
 533
 534	/* clear D2H reception area to properly wait for D2H FIS */
 535	ata_tf_init(link->device, &tf);
 536	tf.command = 0x80;
 537	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
 538
 539	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
 540				 deadline, &online, NULL);
 541
 542	ahci_start_engine(ap);
 543
 544	/* The pseudo configuration device on SIMG4726 attached to
 545	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
 546	 * hardreset if no device is attached to the first downstream
 547	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
 548	 * work around this, wait for !BSY only briefly.  If BSY isn't
 549	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
 550	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
 551	 *
 552	 * Wait for two seconds.  Devices attached to downstream port
 553	 * which can't process the following IDENTIFY after this will
 554	 * have to be reset again.  For most cases, this should
 555	 * suffice while making probing snappish enough.
 556	 */
 557	if (online) {
 558		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
 559					  ahci_check_ready);
 560		if (rc)
 561			ahci_kick_engine(ap);
 562	}
 563	return rc;
 564}
 565
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 566#ifdef CONFIG_PM
 567static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
 568{
 569	struct ata_host *host = dev_get_drvdata(&pdev->dev);
 570	struct ahci_host_priv *hpriv = host->private_data;
 571	void __iomem *mmio = hpriv->mmio;
 572	u32 ctl;
 573
 574	if (mesg.event & PM_EVENT_SUSPEND &&
 575	    hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 576		dev_err(&pdev->dev,
 577			"BIOS update required for suspend/resume\n");
 578		return -EIO;
 579	}
 580
 581	if (mesg.event & PM_EVENT_SLEEP) {
 582		/* AHCI spec rev1.1 section 8.3.3:
 583		 * Software must disable interrupts prior to requesting a
 584		 * transition of the HBA to D3 state.
 585		 */
 586		ctl = readl(mmio + HOST_CTL);
 587		ctl &= ~HOST_IRQ_EN;
 588		writel(ctl, mmio + HOST_CTL);
 589		readl(mmio + HOST_CTL); /* flush */
 590	}
 591
 592	return ata_pci_device_suspend(pdev, mesg);
 593}
 594
 595static int ahci_pci_device_resume(struct pci_dev *pdev)
 596{
 597	struct ata_host *host = dev_get_drvdata(&pdev->dev);
 
 598	int rc;
 599
 600	rc = ata_pci_device_do_resume(pdev);
 601	if (rc)
 602		return rc;
 603
 604	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
 605		rc = ahci_pci_reset_controller(host);
 606		if (rc)
 607			return rc;
 608
 609		ahci_pci_init_controller(host);
 610	}
 611
 612	ata_host_resume(host);
 613
 614	return 0;
 615}
 616#endif
 617
 
 
 618static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 619{
 
 620	int rc;
 621
 622	if (using_dac &&
 623	    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
 624		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
 625		if (rc) {
 626			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 627			if (rc) {
 628				dev_err(&pdev->dev,
 629					"64-bit DMA enable failed\n");
 630				return rc;
 631			}
 632		}
 633	} else {
 634		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 635		if (rc) {
 636			dev_err(&pdev->dev, "32-bit DMA enable failed\n");
 637			return rc;
 638		}
 639		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 640		if (rc) {
 641			dev_err(&pdev->dev,
 642				"32-bit consistent DMA enable failed\n");
 643			return rc;
 644		}
 645	}
 646	return 0;
 647}
 648
 649static void ahci_pci_print_info(struct ata_host *host)
 650{
 651	struct pci_dev *pdev = to_pci_dev(host->dev);
 652	u16 cc;
 653	const char *scc_s;
 654
 655	pci_read_config_word(pdev, 0x0a, &cc);
 656	if (cc == PCI_CLASS_STORAGE_IDE)
 657		scc_s = "IDE";
 658	else if (cc == PCI_CLASS_STORAGE_SATA)
 659		scc_s = "SATA";
 660	else if (cc == PCI_CLASS_STORAGE_RAID)
 661		scc_s = "RAID";
 662	else
 663		scc_s = "unknown";
 664
 665	ahci_print_info(host, scc_s);
 666}
 667
 668/* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
 669 * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
 670 * support PMP and the 4726 either directly exports the device
 671 * attached to the first downstream port or acts as a hardware storage
 672 * controller and emulate a single ATA device (can be RAID 0/1 or some
 673 * other configuration).
 674 *
 675 * When there's no device attached to the first downstream port of the
 676 * 4726, "Config Disk" appears, which is a pseudo ATA device to
 677 * configure the 4726.  However, ATA emulation of the device is very
 678 * lame.  It doesn't send signature D2H Reg FIS after the initial
 679 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
 680 *
 681 * The following function works around the problem by always using
 682 * hardreset on the port and not depending on receiving signature FIS
 683 * afterward.  If signature FIS isn't received soon, ATA class is
 684 * assumed without follow-up softreset.
 685 */
 686static void ahci_p5wdh_workaround(struct ata_host *host)
 687{
 688	static struct dmi_system_id sysids[] = {
 689		{
 690			.ident = "P5W DH Deluxe",
 691			.matches = {
 692				DMI_MATCH(DMI_SYS_VENDOR,
 693					  "ASUSTEK COMPUTER INC"),
 694				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
 695			},
 696		},
 697		{ }
 698	};
 699	struct pci_dev *pdev = to_pci_dev(host->dev);
 700
 701	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
 702	    dmi_check_system(sysids)) {
 703		struct ata_port *ap = host->ports[1];
 704
 705		dev_info(&pdev->dev,
 706			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
 707
 708		ap->ops = &ahci_p5wdh_ops;
 709		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
 710	}
 711}
 712
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 713/* only some SB600 ahci controllers can do 64bit DMA */
 714static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
 715{
 716	static const struct dmi_system_id sysids[] = {
 717		/*
 718		 * The oldest version known to be broken is 0901 and
 719		 * working is 1501 which was released on 2007-10-26.
 720		 * Enable 64bit DMA on 1501 and anything newer.
 721		 *
 722		 * Please read bko#9412 for more info.
 723		 */
 724		{
 725			.ident = "ASUS M2A-VM",
 726			.matches = {
 727				DMI_MATCH(DMI_BOARD_VENDOR,
 728					  "ASUSTeK Computer INC."),
 729				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
 730			},
 731			.driver_data = "20071026",	/* yyyymmdd */
 732		},
 733		/*
 734		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
 735		 * support 64bit DMA.
 736		 *
 737		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
 738		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
 739		 * This spelling mistake was fixed in BIOS version 1.5, so
 740		 * 1.5 and later have the Manufacturer as
 741		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
 742		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
 743		 *
 744		 * BIOS versions earlier than 1.9 had a Board Product Name
 745		 * DMI field of "MS-7376". This was changed to be
 746		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
 747		 * match on DMI_BOARD_NAME of "MS-7376".
 748		 */
 749		{
 750			.ident = "MSI K9A2 Platinum",
 751			.matches = {
 752				DMI_MATCH(DMI_BOARD_VENDOR,
 753					  "MICRO-STAR INTER"),
 754				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
 755			},
 756		},
 757		/*
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 758		 * All BIOS versions for the Asus M3A support 64bit DMA.
 759		 * (all release versions from 0301 to 1206 were tested)
 760		 */
 761		{
 762			.ident = "ASUS M3A",
 763			.matches = {
 764				DMI_MATCH(DMI_BOARD_VENDOR,
 765					  "ASUSTeK Computer INC."),
 766				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
 767			},
 768		},
 769		{ }
 770	};
 771	const struct dmi_system_id *match;
 772	int year, month, date;
 773	char buf[9];
 774
 775	match = dmi_first_match(sysids);
 776	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
 777	    !match)
 778		return false;
 779
 780	if (!match->driver_data)
 781		goto enable_64bit;
 782
 783	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
 784	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
 785
 786	if (strcmp(buf, match->driver_data) >= 0)
 787		goto enable_64bit;
 788	else {
 789		dev_warn(&pdev->dev,
 790			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
 791			 match->ident);
 792		return false;
 793	}
 794
 795enable_64bit:
 796	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
 797	return true;
 798}
 799
 800static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
 801{
 802	static const struct dmi_system_id broken_systems[] = {
 803		{
 804			.ident = "HP Compaq nx6310",
 805			.matches = {
 806				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 807				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
 808			},
 809			/* PCI slot number of the controller */
 810			.driver_data = (void *)0x1FUL,
 811		},
 812		{
 813			.ident = "HP Compaq 6720s",
 814			.matches = {
 815				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 816				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
 817			},
 818			/* PCI slot number of the controller */
 819			.driver_data = (void *)0x1FUL,
 820		},
 821
 822		{ }	/* terminate list */
 823	};
 824	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
 825
 826	if (dmi) {
 827		unsigned long slot = (unsigned long)dmi->driver_data;
 828		/* apply the quirk only to on-board controllers */
 829		return slot == PCI_SLOT(pdev->devfn);
 830	}
 831
 832	return false;
 833}
 834
 835static bool ahci_broken_suspend(struct pci_dev *pdev)
 836{
 837	static const struct dmi_system_id sysids[] = {
 838		/*
 839		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
 840		 * to the harddisk doesn't become online after
 841		 * resuming from STR.  Warn and fail suspend.
 842		 *
 843		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
 844		 *
 845		 * Use dates instead of versions to match as HP is
 846		 * apparently recycling both product and version
 847		 * strings.
 848		 *
 849		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
 850		 */
 851		{
 852			.ident = "dv4",
 853			.matches = {
 854				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 855				DMI_MATCH(DMI_PRODUCT_NAME,
 856					  "HP Pavilion dv4 Notebook PC"),
 857			},
 858			.driver_data = "20090105",	/* F.30 */
 859		},
 860		{
 861			.ident = "dv5",
 862			.matches = {
 863				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 864				DMI_MATCH(DMI_PRODUCT_NAME,
 865					  "HP Pavilion dv5 Notebook PC"),
 866			},
 867			.driver_data = "20090506",	/* F.16 */
 868		},
 869		{
 870			.ident = "dv6",
 871			.matches = {
 872				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 873				DMI_MATCH(DMI_PRODUCT_NAME,
 874					  "HP Pavilion dv6 Notebook PC"),
 875			},
 876			.driver_data = "20090423",	/* F.21 */
 877		},
 878		{
 879			.ident = "HDX18",
 880			.matches = {
 881				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 882				DMI_MATCH(DMI_PRODUCT_NAME,
 883					  "HP HDX18 Notebook PC"),
 884			},
 885			.driver_data = "20090430",	/* F.23 */
 886		},
 887		/*
 888		 * Acer eMachines G725 has the same problem.  BIOS
 889		 * V1.03 is known to be broken.  V3.04 is known to
 890		 * work.  Between, there are V1.06, V2.06 and V3.03
 891		 * that we don't have much idea about.  For now,
 892		 * blacklist anything older than V3.04.
 893		 *
 894		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
 895		 */
 896		{
 897			.ident = "G725",
 898			.matches = {
 899				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
 900				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
 901			},
 902			.driver_data = "20091216",	/* V3.04 */
 903		},
 904		{ }	/* terminate list */
 905	};
 906	const struct dmi_system_id *dmi = dmi_first_match(sysids);
 907	int year, month, date;
 908	char buf[9];
 909
 910	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
 911		return false;
 912
 913	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
 914	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
 915
 916	return strcmp(buf, dmi->driver_data) < 0;
 917}
 918
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 919static bool ahci_broken_online(struct pci_dev *pdev)
 920{
 921#define ENCODE_BUSDEVFN(bus, slot, func)			\
 922	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
 923	static const struct dmi_system_id sysids[] = {
 924		/*
 925		 * There are several gigabyte boards which use
 926		 * SIMG5723s configured as hardware RAID.  Certain
 927		 * 5723 firmware revisions shipped there keep the link
 928		 * online but fail to answer properly to SRST or
 929		 * IDENTIFY when no device is attached downstream
 930		 * causing libata to retry quite a few times leading
 931		 * to excessive detection delay.
 932		 *
 933		 * As these firmwares respond to the second reset try
 934		 * with invalid device signature, considering unknown
 935		 * sig as offline works around the problem acceptably.
 936		 */
 937		{
 938			.ident = "EP45-DQ6",
 939			.matches = {
 940				DMI_MATCH(DMI_BOARD_VENDOR,
 941					  "Gigabyte Technology Co., Ltd."),
 942				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
 943			},
 944			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
 945		},
 946		{
 947			.ident = "EP45-DS5",
 948			.matches = {
 949				DMI_MATCH(DMI_BOARD_VENDOR,
 950					  "Gigabyte Technology Co., Ltd."),
 951				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
 952			},
 953			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
 954		},
 955		{ }	/* terminate list */
 956	};
 957#undef ENCODE_BUSDEVFN
 958	const struct dmi_system_id *dmi = dmi_first_match(sysids);
 959	unsigned int val;
 960
 961	if (!dmi)
 962		return false;
 963
 964	val = (unsigned long)dmi->driver_data;
 965
 966	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
 967}
 968
 
 
 
 
 
 
 
 
 
 
 
 969#ifdef CONFIG_ATA_ACPI
 970static void ahci_gtf_filter_workaround(struct ata_host *host)
 971{
 972	static const struct dmi_system_id sysids[] = {
 973		/*
 974		 * Aspire 3810T issues a bunch of SATA enable commands
 975		 * via _GTF including an invalid one and one which is
 976		 * rejected by the device.  Among the successful ones
 977		 * is FPDMA non-zero offset enable which when enabled
 978		 * only on the drive side leads to NCQ command
 979		 * failures.  Filter it out.
 980		 */
 981		{
 982			.ident = "Aspire 3810T",
 983			.matches = {
 984				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 985				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
 986			},
 987			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
 988		},
 989		{ }
 990	};
 991	const struct dmi_system_id *dmi = dmi_first_match(sysids);
 992	unsigned int filter;
 993	int i;
 994
 995	if (!dmi)
 996		return;
 997
 998	filter = (unsigned long)dmi->driver_data;
 999	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1000		 filter, dmi->ident);
1001
1002	for (i = 0; i < host->n_ports; i++) {
1003		struct ata_port *ap = host->ports[i];
1004		struct ata_link *link;
1005		struct ata_device *dev;
1006
1007		ata_for_each_link(link, ap, EDGE)
1008			ata_for_each_dev(dev, link, ALL)
1009				dev->gtf_filter |= filter;
1010	}
1011}
1012#else
1013static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1014{}
1015#endif
1016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1017static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1018{
1019	unsigned int board_id = ent->driver_data;
1020	struct ata_port_info pi = ahci_port_info[board_id];
1021	const struct ata_port_info *ppi[] = { &pi, NULL };
1022	struct device *dev = &pdev->dev;
1023	struct ahci_host_priv *hpriv;
1024	struct ata_host *host;
1025	int n_ports, i, rc;
 
1026
1027	VPRINTK("ENTER\n");
1028
1029	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1030
1031	ata_print_version_once(&pdev->dev, DRV_VERSION);
1032
1033	/* The AHCI driver can only drive the SATA ports, the PATA driver
1034	   can drive them all so if both drivers are selected make sure
1035	   AHCI stays out of the way */
1036	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1037		return -ENODEV;
1038
1039	/*
1040	 * For some reason, MCP89 on MacBook 7,1 doesn't work with
1041	 * ahci, use ata_generic instead.
1042	 */
1043	if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1044	    pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1045	    pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1046	    pdev->subsystem_device == 0xcb89)
1047		return -ENODEV;
1048
1049	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1050	 * At the moment, we can only use the AHCI mode. Let the users know
1051	 * that for SAS drives they're out of luck.
1052	 */
1053	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1054		dev_info(&pdev->dev,
1055			 "PDC42819 can only drive SATA devices with this driver\n");
1056
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1057	/* acquire resources */
1058	rc = pcim_enable_device(pdev);
1059	if (rc)
1060		return rc;
1061
1062	/* AHCI controllers often implement SFF compatible interface.
1063	 * Grab all PCI BARs just in case.
1064	 */
1065	rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
1066	if (rc == -EBUSY)
1067		pcim_pin_device(pdev);
1068	if (rc)
1069		return rc;
1070
1071	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1072	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1073		u8 map;
1074
1075		/* ICH6s share the same PCI ID for both piix and ahci
1076		 * modes.  Enabling ahci mode while MAP indicates
1077		 * combined mode is a bad idea.  Yield to ata_piix.
1078		 */
1079		pci_read_config_byte(pdev, ICH_MAP, &map);
1080		if (map & 0x3) {
1081			dev_info(&pdev->dev,
1082				 "controller is in combined mode, can't enable AHCI mode\n");
1083			return -ENODEV;
1084		}
1085	}
1086
 
 
 
 
 
 
 
 
 
1087	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1088	if (!hpriv)
1089		return -ENOMEM;
1090	hpriv->flags |= (unsigned long)pi.private_data;
1091
1092	/* MCP65 revision A1 and A2 can't do MSI */
1093	if (board_id == board_ahci_mcp65 &&
1094	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1095		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1096
1097	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1098	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1099		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1100
1101	/* only some SB600s can do 64bit DMA */
1102	if (ahci_sb600_enable_64bit(pdev))
1103		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1104
1105	if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
1106		pci_intx(pdev, 1);
 
 
1107
1108	hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1109
1110	/* save initial config */
1111	ahci_pci_save_initial_config(pdev, hpriv);
1112
 
 
 
 
 
 
1113	/* prepare host */
1114	if (hpriv->cap & HOST_CAP_NCQ) {
1115		pi.flags |= ATA_FLAG_NCQ;
1116		/*
1117		 * Auto-activate optimization is supposed to be
1118		 * supported on all AHCI controllers indicating NCQ
1119		 * capability, but it seems to be broken on some
1120		 * chipsets including NVIDIAs.
1121		 */
1122		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1123			pi.flags |= ATA_FLAG_FPDMA_AA;
 
 
 
 
 
 
 
 
1124	}
1125
1126	if (hpriv->cap & HOST_CAP_PMP)
1127		pi.flags |= ATA_FLAG_PMP;
1128
1129	ahci_set_em_messages(hpriv, &pi);
1130
1131	if (ahci_broken_system_poweroff(pdev)) {
1132		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1133		dev_info(&pdev->dev,
1134			"quirky BIOS, skipping spindown on poweroff\n");
1135	}
1136
 
 
 
 
 
 
1137	if (ahci_broken_suspend(pdev)) {
1138		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1139		dev_warn(&pdev->dev,
1140			 "BIOS update required for suspend/resume\n");
1141	}
1142
1143	if (ahci_broken_online(pdev)) {
1144		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1145		dev_info(&pdev->dev,
1146			 "online status unreliable, applying workaround\n");
1147	}
1148
 
 
 
 
1149	/* CAP.NP sometimes indicate the index of the last enabled
1150	 * port, at other times, that of the last possible port, so
1151	 * determining the maximum port number requires looking at
1152	 * both CAP.NP and port_map.
1153	 */
1154	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1155
1156	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1157	if (!host)
1158		return -ENOMEM;
1159	host->private_data = hpriv;
1160
 
 
 
 
 
 
1161	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1162		host->flags |= ATA_HOST_PARALLEL_SCAN;
1163	else
1164		printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
1165
1166	if (pi.flags & ATA_FLAG_EM)
1167		ahci_reset_em(host);
1168
1169	for (i = 0; i < host->n_ports; i++) {
1170		struct ata_port *ap = host->ports[i];
1171
1172		ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar");
1173		ata_port_pbar_desc(ap, AHCI_PCI_BAR,
1174				   0x100 + ap->port_no * 0x80, "port");
1175
1176		/* set enclosure management message type */
1177		if (ap->flags & ATA_FLAG_EM)
1178			ap->em_message_type = hpriv->em_msg_type;
1179
 
1180
1181		/* disabled/not-implemented port */
1182		if (!(hpriv->port_map & (1 << i)))
1183			ap->ops = &ata_dummy_port_ops;
1184	}
1185
1186	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1187	ahci_p5wdh_workaround(host);
1188
1189	/* apply gtf filter quirk */
1190	ahci_gtf_filter_workaround(host);
1191
1192	/* initialize adapter */
1193	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1194	if (rc)
1195		return rc;
1196
1197	rc = ahci_pci_reset_controller(host);
1198	if (rc)
1199		return rc;
1200
1201	ahci_pci_init_controller(host);
1202	ahci_pci_print_info(host);
1203
1204	pci_set_master(pdev);
1205	return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED,
1206				 &ahci_sht);
 
 
 
 
 
1207}
1208
1209static int __init ahci_init(void)
1210{
1211	return pci_register_driver(&ahci_pci_driver);
1212}
1213
1214static void __exit ahci_exit(void)
1215{
1216	pci_unregister_driver(&ahci_pci_driver);
 
 
 
 
1217}
1218
 
1219
1220MODULE_AUTHOR("Jeff Garzik");
1221MODULE_DESCRIPTION("AHCI SATA low-level driver");
1222MODULE_LICENSE("GPL");
1223MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1224MODULE_VERSION(DRV_VERSION);
1225
1226module_init(ahci_init);
1227module_exit(ahci_exit);
v5.14.15
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  ahci.c - AHCI SATA support
   4 *
   5 *  Maintained by:  Tejun Heo <tj@kernel.org>
   6 *    		    Please ALWAYS copy linux-ide@vger.kernel.org
   7 *		    on emails.
   8 *
   9 *  Copyright 2004-2005 Red Hat, Inc.
  10 *
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  11 * libata documentation is available via 'make {ps|pdf}docs',
  12 * as Documentation/driver-api/libata.rst
  13 *
  14 * AHCI hardware documentation:
  15 * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
  16 * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf
 
  17 */
  18
  19#include <linux/kernel.h>
  20#include <linux/module.h>
  21#include <linux/pci.h>
 
  22#include <linux/blkdev.h>
  23#include <linux/delay.h>
  24#include <linux/interrupt.h>
  25#include <linux/dma-mapping.h>
  26#include <linux/device.h>
  27#include <linux/dmi.h>
  28#include <linux/gfp.h>
  29#include <linux/msi.h>
  30#include <scsi/scsi_host.h>
  31#include <scsi/scsi_cmnd.h>
  32#include <linux/libata.h>
  33#include <linux/ahci-remap.h>
  34#include <linux/io-64-nonatomic-lo-hi.h>
  35#include "ahci.h"
  36
  37#define DRV_NAME	"ahci"
  38#define DRV_VERSION	"3.0"
  39
  40enum {
  41	AHCI_PCI_BAR_STA2X11	= 0,
  42	AHCI_PCI_BAR_CAVIUM	= 0,
  43	AHCI_PCI_BAR_LOONGSON	= 0,
  44	AHCI_PCI_BAR_ENMOTUS	= 2,
  45	AHCI_PCI_BAR_CAVIUM_GEN5	= 4,
  46	AHCI_PCI_BAR_STANDARD	= 5,
  47};
  48
  49enum board_ids {
  50	/* board IDs by feature in alphabetical order */
  51	board_ahci,
  52	board_ahci_ign_iferr,
  53	board_ahci_mobile,
  54	board_ahci_nomsi,
  55	board_ahci_noncq,
  56	board_ahci_nosntf,
  57	board_ahci_yes_fbs,
  58
  59	/* board IDs for specific chipsets in alphabetical order */
  60	board_ahci_al,
  61	board_ahci_avn,
  62	board_ahci_mcp65,
  63	board_ahci_mcp77,
  64	board_ahci_mcp89,
  65	board_ahci_mv,
  66	board_ahci_sb600,
  67	board_ahci_sb700,	/* for SB700 and SB800 */
  68	board_ahci_vt8251,
  69
  70	/*
  71	 * board IDs for Intel chipsets that support more than 6 ports
  72	 * *and* end up needing the PCS quirk.
  73	 */
  74	board_ahci_pcs7,
  75
  76	/* aliases */
  77	board_ahci_mcp_linux	= board_ahci_mcp65,
  78	board_ahci_mcp67	= board_ahci_mcp65,
  79	board_ahci_mcp73	= board_ahci_mcp65,
  80	board_ahci_mcp79	= board_ahci_mcp77,
  81};
  82
  83static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
  84static void ahci_remove_one(struct pci_dev *dev);
  85static void ahci_shutdown_one(struct pci_dev *dev);
  86static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
  87				 unsigned long deadline);
  88static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
  89			      unsigned long deadline);
  90static void ahci_mcp89_apple_enable(struct pci_dev *pdev);
  91static bool is_mcp89_apple(struct pci_dev *pdev);
  92static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
  93				unsigned long deadline);
  94#ifdef CONFIG_PM
  95static int ahci_pci_device_runtime_suspend(struct device *dev);
  96static int ahci_pci_device_runtime_resume(struct device *dev);
  97#ifdef CONFIG_PM_SLEEP
  98static int ahci_pci_device_suspend(struct device *dev);
  99static int ahci_pci_device_resume(struct device *dev);
 100#endif
 101#endif /* CONFIG_PM */
 102
 103static struct scsi_host_template ahci_sht = {
 104	AHCI_SHT("ahci"),
 105};
 106
 107static struct ata_port_operations ahci_vt8251_ops = {
 108	.inherits		= &ahci_ops,
 109	.hardreset		= ahci_vt8251_hardreset,
 110};
 111
 112static struct ata_port_operations ahci_p5wdh_ops = {
 113	.inherits		= &ahci_ops,
 114	.hardreset		= ahci_p5wdh_hardreset,
 115};
 116
 117static struct ata_port_operations ahci_avn_ops = {
 118	.inherits		= &ahci_ops,
 119	.hardreset		= ahci_avn_hardreset,
 120};
 121
 122static const struct ata_port_info ahci_port_info[] = {
 123	/* by features */
 124	[board_ahci] = {
 
 125		.flags		= AHCI_FLAG_COMMON,
 126		.pio_mask	= ATA_PIO4,
 127		.udma_mask	= ATA_UDMA6,
 128		.port_ops	= &ahci_ops,
 129	},
 130	[board_ahci_ign_iferr] = {
 
 131		AHCI_HFLAGS	(AHCI_HFLAG_IGN_IRQ_IF_ERR),
 132		.flags		= AHCI_FLAG_COMMON,
 133		.pio_mask	= ATA_PIO4,
 134		.udma_mask	= ATA_UDMA6,
 135		.port_ops	= &ahci_ops,
 136	},
 137	[board_ahci_mobile] = {
 138		AHCI_HFLAGS	(AHCI_HFLAG_IS_MOBILE),
 139		.flags		= AHCI_FLAG_COMMON,
 140		.pio_mask	= ATA_PIO4,
 141		.udma_mask	= ATA_UDMA6,
 142		.port_ops	= &ahci_ops,
 143	},
 144	[board_ahci_nomsi] = {
 145		AHCI_HFLAGS	(AHCI_HFLAG_NO_MSI),
 146		.flags		= AHCI_FLAG_COMMON,
 147		.pio_mask	= ATA_PIO4,
 148		.udma_mask	= ATA_UDMA6,
 149		.port_ops	= &ahci_ops,
 150	},
 151	[board_ahci_noncq] = {
 152		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ),
 153		.flags		= AHCI_FLAG_COMMON,
 154		.pio_mask	= ATA_PIO4,
 155		.udma_mask	= ATA_UDMA6,
 156		.port_ops	= &ahci_ops,
 157	},
 158	[board_ahci_nosntf] = {
 159		AHCI_HFLAGS	(AHCI_HFLAG_NO_SNTF),
 160		.flags		= AHCI_FLAG_COMMON,
 161		.pio_mask	= ATA_PIO4,
 162		.udma_mask	= ATA_UDMA6,
 163		.port_ops	= &ahci_ops,
 164	},
 165	[board_ahci_yes_fbs] = {
 
 166		AHCI_HFLAGS	(AHCI_HFLAG_YES_FBS),
 167		.flags		= AHCI_FLAG_COMMON,
 168		.pio_mask	= ATA_PIO4,
 169		.udma_mask	= ATA_UDMA6,
 170		.port_ops	= &ahci_ops,
 171	},
 172	/* by chipsets */
 173	[board_ahci_al] = {
 174		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
 175		.flags		= AHCI_FLAG_COMMON,
 176		.pio_mask	= ATA_PIO4,
 177		.udma_mask	= ATA_UDMA6,
 178		.port_ops	= &ahci_ops,
 179	},
 180	[board_ahci_avn] = {
 181		.flags		= AHCI_FLAG_COMMON,
 182		.pio_mask	= ATA_PIO4,
 183		.udma_mask	= ATA_UDMA6,
 184		.port_ops	= &ahci_avn_ops,
 185	},
 186	[board_ahci_mcp65] = {
 187		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP |
 188				 AHCI_HFLAG_YES_NCQ),
 189		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
 190		.pio_mask	= ATA_PIO4,
 191		.udma_mask	= ATA_UDMA6,
 192		.port_ops	= &ahci_ops,
 193	},
 194	[board_ahci_mcp77] = {
 
 195		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP),
 196		.flags		= AHCI_FLAG_COMMON,
 197		.pio_mask	= ATA_PIO4,
 198		.udma_mask	= ATA_UDMA6,
 199		.port_ops	= &ahci_ops,
 200	},
 201	[board_ahci_mcp89] = {
 
 202		AHCI_HFLAGS	(AHCI_HFLAG_NO_FPDMA_AA),
 203		.flags		= AHCI_FLAG_COMMON,
 204		.pio_mask	= ATA_PIO4,
 205		.udma_mask	= ATA_UDMA6,
 206		.port_ops	= &ahci_ops,
 207	},
 208	[board_ahci_mv] = {
 
 209		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |
 210				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),
 211		.flags		= ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
 212		.pio_mask	= ATA_PIO4,
 213		.udma_mask	= ATA_UDMA6,
 214		.port_ops	= &ahci_ops,
 215	},
 216	[board_ahci_sb600] = {
 
 217		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL |
 218				 AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 |
 219				 AHCI_HFLAG_32BIT_ONLY),
 220		.flags		= AHCI_FLAG_COMMON,
 221		.pio_mask	= ATA_PIO4,
 222		.udma_mask	= ATA_UDMA6,
 223		.port_ops	= &ahci_pmp_retry_srst_ops,
 224	},
 225	[board_ahci_sb700] = {	/* for SB700 and SB800 */
 
 226		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
 227		.flags		= AHCI_FLAG_COMMON,
 228		.pio_mask	= ATA_PIO4,
 229		.udma_mask	= ATA_UDMA6,
 230		.port_ops	= &ahci_pmp_retry_srst_ops,
 231	},
 232	[board_ahci_vt8251] = {
 
 233		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
 234		.flags		= AHCI_FLAG_COMMON,
 235		.pio_mask	= ATA_PIO4,
 236		.udma_mask	= ATA_UDMA6,
 237		.port_ops	= &ahci_vt8251_ops,
 238	},
 239	[board_ahci_pcs7] = {
 240		.flags		= AHCI_FLAG_COMMON,
 241		.pio_mask	= ATA_PIO4,
 242		.udma_mask	= ATA_UDMA6,
 243		.port_ops	= &ahci_ops,
 244	},
 245};
 246
 247static const struct pci_device_id ahci_pci_tbl[] = {
 248	/* Intel */
 249	{ PCI_VDEVICE(INTEL, 0x06d6), board_ahci }, /* Comet Lake PCH-H RAID */
 250	{ PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */
 251	{ PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */
 252	{ PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */
 253	{ PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */
 254	{ PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */
 255	{ PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */
 256	{ PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */
 257	{ PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */
 258	{ PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */
 259	{ PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */
 260	{ PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */
 261	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */
 262	{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
 263	{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
 264	{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
 265	{ PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
 266	{ PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
 267	{ PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
 268	{ PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
 269	{ PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
 270	{ PCI_VDEVICE(INTEL, 0x2929), board_ahci_mobile }, /* ICH9M */
 271	{ PCI_VDEVICE(INTEL, 0x292a), board_ahci_mobile }, /* ICH9M */
 272	{ PCI_VDEVICE(INTEL, 0x292b), board_ahci_mobile }, /* ICH9M */
 273	{ PCI_VDEVICE(INTEL, 0x292c), board_ahci_mobile }, /* ICH9M */
 274	{ PCI_VDEVICE(INTEL, 0x292f), board_ahci_mobile }, /* ICH9M */
 275	{ PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
 276	{ PCI_VDEVICE(INTEL, 0x294e), board_ahci_mobile }, /* ICH9M */
 277	{ PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */
 278	{ PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */
 279	{ PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */
 280	{ PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */
 281	{ PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */
 282	{ PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */
 283	{ PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */
 284	{ PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */
 285	{ PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */
 286	{ PCI_VDEVICE(INTEL, 0x3b29), board_ahci_mobile }, /* PCH M AHCI */
 287	{ PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */
 288	{ PCI_VDEVICE(INTEL, 0x3b2c), board_ahci_mobile }, /* PCH M RAID */
 289	{ PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */
 290	{ PCI_VDEVICE(INTEL, 0x19b0), board_ahci_pcs7 }, /* DNV AHCI */
 291	{ PCI_VDEVICE(INTEL, 0x19b1), board_ahci_pcs7 }, /* DNV AHCI */
 292	{ PCI_VDEVICE(INTEL, 0x19b2), board_ahci_pcs7 }, /* DNV AHCI */
 293	{ PCI_VDEVICE(INTEL, 0x19b3), board_ahci_pcs7 }, /* DNV AHCI */
 294	{ PCI_VDEVICE(INTEL, 0x19b4), board_ahci_pcs7 }, /* DNV AHCI */
 295	{ PCI_VDEVICE(INTEL, 0x19b5), board_ahci_pcs7 }, /* DNV AHCI */
 296	{ PCI_VDEVICE(INTEL, 0x19b6), board_ahci_pcs7 }, /* DNV AHCI */
 297	{ PCI_VDEVICE(INTEL, 0x19b7), board_ahci_pcs7 }, /* DNV AHCI */
 298	{ PCI_VDEVICE(INTEL, 0x19bE), board_ahci_pcs7 }, /* DNV AHCI */
 299	{ PCI_VDEVICE(INTEL, 0x19bF), board_ahci_pcs7 }, /* DNV AHCI */
 300	{ PCI_VDEVICE(INTEL, 0x19c0), board_ahci_pcs7 }, /* DNV AHCI */
 301	{ PCI_VDEVICE(INTEL, 0x19c1), board_ahci_pcs7 }, /* DNV AHCI */
 302	{ PCI_VDEVICE(INTEL, 0x19c2), board_ahci_pcs7 }, /* DNV AHCI */
 303	{ PCI_VDEVICE(INTEL, 0x19c3), board_ahci_pcs7 }, /* DNV AHCI */
 304	{ PCI_VDEVICE(INTEL, 0x19c4), board_ahci_pcs7 }, /* DNV AHCI */
 305	{ PCI_VDEVICE(INTEL, 0x19c5), board_ahci_pcs7 }, /* DNV AHCI */
 306	{ PCI_VDEVICE(INTEL, 0x19c6), board_ahci_pcs7 }, /* DNV AHCI */
 307	{ PCI_VDEVICE(INTEL, 0x19c7), board_ahci_pcs7 }, /* DNV AHCI */
 308	{ PCI_VDEVICE(INTEL, 0x19cE), board_ahci_pcs7 }, /* DNV AHCI */
 309	{ PCI_VDEVICE(INTEL, 0x19cF), board_ahci_pcs7 }, /* DNV AHCI */
 310	{ PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */
 311	{ PCI_VDEVICE(INTEL, 0x1c03), board_ahci_mobile }, /* CPT M AHCI */
 312	{ PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */
 313	{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci_mobile }, /* CPT M RAID */
 314	{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
 315	{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
 316	{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
 317	{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
 318	{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
 319	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* PBG RAID */
 320	{ PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */
 321	{ PCI_VDEVICE(INTEL, 0x1e02), board_ahci }, /* Panther Point AHCI */
 322	{ PCI_VDEVICE(INTEL, 0x1e03), board_ahci_mobile }, /* Panther M AHCI */
 323	{ PCI_VDEVICE(INTEL, 0x1e04), board_ahci }, /* Panther Point RAID */
 324	{ PCI_VDEVICE(INTEL, 0x1e05), board_ahci }, /* Panther Point RAID */
 325	{ PCI_VDEVICE(INTEL, 0x1e06), board_ahci }, /* Panther Point RAID */
 326	{ PCI_VDEVICE(INTEL, 0x1e07), board_ahci_mobile }, /* Panther M RAID */
 327	{ PCI_VDEVICE(INTEL, 0x1e0e), board_ahci }, /* Panther Point RAID */
 328	{ PCI_VDEVICE(INTEL, 0x8c02), board_ahci }, /* Lynx Point AHCI */
 329	{ PCI_VDEVICE(INTEL, 0x8c03), board_ahci_mobile }, /* Lynx M AHCI */
 330	{ PCI_VDEVICE(INTEL, 0x8c04), board_ahci }, /* Lynx Point RAID */
 331	{ PCI_VDEVICE(INTEL, 0x8c05), board_ahci_mobile }, /* Lynx M RAID */
 332	{ PCI_VDEVICE(INTEL, 0x8c06), board_ahci }, /* Lynx Point RAID */
 333	{ PCI_VDEVICE(INTEL, 0x8c07), board_ahci_mobile }, /* Lynx M RAID */
 334	{ PCI_VDEVICE(INTEL, 0x8c0e), board_ahci }, /* Lynx Point RAID */
 335	{ PCI_VDEVICE(INTEL, 0x8c0f), board_ahci_mobile }, /* Lynx M RAID */
 336	{ PCI_VDEVICE(INTEL, 0x9c02), board_ahci_mobile }, /* Lynx LP AHCI */
 337	{ PCI_VDEVICE(INTEL, 0x9c03), board_ahci_mobile }, /* Lynx LP AHCI */
 338	{ PCI_VDEVICE(INTEL, 0x9c04), board_ahci_mobile }, /* Lynx LP RAID */
 339	{ PCI_VDEVICE(INTEL, 0x9c05), board_ahci_mobile }, /* Lynx LP RAID */
 340	{ PCI_VDEVICE(INTEL, 0x9c06), board_ahci_mobile }, /* Lynx LP RAID */
 341	{ PCI_VDEVICE(INTEL, 0x9c07), board_ahci_mobile }, /* Lynx LP RAID */
 342	{ PCI_VDEVICE(INTEL, 0x9c0e), board_ahci_mobile }, /* Lynx LP RAID */
 343	{ PCI_VDEVICE(INTEL, 0x9c0f), board_ahci_mobile }, /* Lynx LP RAID */
 344	{ PCI_VDEVICE(INTEL, 0x9dd3), board_ahci_mobile }, /* Cannon Lake PCH-LP AHCI */
 345	{ PCI_VDEVICE(INTEL, 0x1f22), board_ahci }, /* Avoton AHCI */
 346	{ PCI_VDEVICE(INTEL, 0x1f23), board_ahci }, /* Avoton AHCI */
 347	{ PCI_VDEVICE(INTEL, 0x1f24), board_ahci }, /* Avoton RAID */
 348	{ PCI_VDEVICE(INTEL, 0x1f25), board_ahci }, /* Avoton RAID */
 349	{ PCI_VDEVICE(INTEL, 0x1f26), board_ahci }, /* Avoton RAID */
 350	{ PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */
 351	{ PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */
 352	{ PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */
 353	{ PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */
 354	{ PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */
 355	{ PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */
 356	{ PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */
 357	{ PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */
 358	{ PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */
 359	{ PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */
 360	{ PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */
 361	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */
 362	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */
 363	{ PCI_VDEVICE(INTEL, 0x43d4), board_ahci }, /* Rocket Lake PCH-H RAID */
 364	{ PCI_VDEVICE(INTEL, 0x43d5), board_ahci }, /* Rocket Lake PCH-H RAID */
 365	{ PCI_VDEVICE(INTEL, 0x43d6), board_ahci }, /* Rocket Lake PCH-H RAID */
 366	{ PCI_VDEVICE(INTEL, 0x43d7), board_ahci }, /* Rocket Lake PCH-H RAID */
 367	{ PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */
 368	{ PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */
 369	{ PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */
 370	{ PCI_VDEVICE(INTEL, 0x8d0e), board_ahci }, /* Wellsburg RAID */
 371	{ PCI_VDEVICE(INTEL, 0x8d62), board_ahci }, /* Wellsburg AHCI */
 372	{ PCI_VDEVICE(INTEL, 0x8d64), board_ahci }, /* Wellsburg RAID */
 373	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
 374	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
 375	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
 376	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci_mobile }, /* Wildcat LP AHCI */
 377	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci_mobile }, /* Wildcat LP RAID */
 378	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci_mobile }, /* Wildcat LP RAID */
 379	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci_mobile }, /* Wildcat LP RAID */
 380	{ PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
 381	{ PCI_VDEVICE(INTEL, 0x8c83), board_ahci_mobile }, /* 9 Series M AHCI */
 382	{ PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
 383	{ PCI_VDEVICE(INTEL, 0x8c85), board_ahci_mobile }, /* 9 Series M RAID */
 384	{ PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
 385	{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci_mobile }, /* 9 Series M RAID */
 386	{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
 387	{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci_mobile }, /* 9 Series M RAID */
 388	{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci_mobile }, /* Sunrise LP AHCI */
 389	{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci_mobile }, /* Sunrise LP RAID */
 390	{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci_mobile }, /* Sunrise LP RAID */
 391	{ PCI_VDEVICE(INTEL, 0xa102), board_ahci }, /* Sunrise Point-H AHCI */
 392	{ PCI_VDEVICE(INTEL, 0xa103), board_ahci_mobile }, /* Sunrise M AHCI */
 393	{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
 394	{ PCI_VDEVICE(INTEL, 0xa106), board_ahci }, /* Sunrise Point-H RAID */
 395	{ PCI_VDEVICE(INTEL, 0xa107), board_ahci_mobile }, /* Sunrise M RAID */
 396	{ PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
 397	{ PCI_VDEVICE(INTEL, 0x2822), board_ahci }, /* Lewisburg RAID*/
 398	{ PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Lewisburg AHCI*/
 399	{ PCI_VDEVICE(INTEL, 0x2826), board_ahci }, /* Lewisburg RAID*/
 400	{ PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Lewisburg RAID*/
 401	{ PCI_VDEVICE(INTEL, 0xa182), board_ahci }, /* Lewisburg AHCI*/
 402	{ PCI_VDEVICE(INTEL, 0xa186), board_ahci }, /* Lewisburg RAID*/
 403	{ PCI_VDEVICE(INTEL, 0xa1d2), board_ahci }, /* Lewisburg RAID*/
 404	{ PCI_VDEVICE(INTEL, 0xa1d6), board_ahci }, /* Lewisburg RAID*/
 405	{ PCI_VDEVICE(INTEL, 0xa202), board_ahci }, /* Lewisburg AHCI*/
 406	{ PCI_VDEVICE(INTEL, 0xa206), board_ahci }, /* Lewisburg RAID*/
 407	{ PCI_VDEVICE(INTEL, 0xa252), board_ahci }, /* Lewisburg RAID*/
 408	{ PCI_VDEVICE(INTEL, 0xa256), board_ahci }, /* Lewisburg RAID*/
 409	{ PCI_VDEVICE(INTEL, 0xa356), board_ahci }, /* Cannon Lake PCH-H RAID */
 410	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci }, /* Comet Lake-H RAID */
 411	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci }, /* Comet Lake PCH-V RAID */
 412	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_mobile }, /* Bay Trail AHCI */
 413	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_mobile }, /* Bay Trail AHCI */
 414	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_mobile }, /* Cherry Tr. AHCI */
 415	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_mobile }, /* ApolloLake AHCI */
 416	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_mobile }, /* Ice Lake LP AHCI */
 417	{ PCI_VDEVICE(INTEL, 0x02d3), board_ahci_mobile }, /* Comet Lake PCH-U AHCI */
 418	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_mobile }, /* Comet Lake PCH RAID */
 419
 420	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 421	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 422	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
 423	/* JMicron 362B and 362C have an AHCI function with IDE class code */
 424	{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
 425	{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
 426	/* May need to update quirk_jmicron_async_suspend() for additions */
 427
 428	/* ATI */
 429	{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
 430	{ PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */
 431	{ PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */
 432	{ PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */
 433	{ PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */
 434	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
 435	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
 436
 437	/* Amazon's Annapurna Labs support */
 438	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
 439		.class = PCI_CLASS_STORAGE_SATA_AHCI,
 440		.class_mask = 0xffffff,
 441		board_ahci_al },
 442	/* AMD */
 443	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
 444	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
 445	/* AMD is using RAID class only for ahci controllers */
 446	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 447	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
 448
 449	/* Dell S140/S150 */
 450	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_SUBVENDOR_ID_DELL, PCI_ANY_ID,
 451	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
 452
 453	/* VIA */
 454	{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
 455	{ PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */
 456
 457	/* NVIDIA */
 458	{ PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 },	/* MCP65 */
 459	{ PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 },	/* MCP65 */
 460	{ PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 },	/* MCP65 */
 461	{ PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 },	/* MCP65 */
 462	{ PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 },	/* MCP65 */
 463	{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 },	/* MCP65 */
 464	{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 },	/* MCP65 */
 465	{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 },	/* MCP65 */
 466	{ PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 },	/* MCP67 */
 467	{ PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 },	/* MCP67 */
 468	{ PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 },	/* MCP67 */
 469	{ PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 },	/* MCP67 */
 470	{ PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 },	/* MCP67 */
 471	{ PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 },	/* MCP67 */
 472	{ PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 },	/* MCP67 */
 473	{ PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 },	/* MCP67 */
 474	{ PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 },	/* MCP67 */
 475	{ PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 },	/* MCP67 */
 476	{ PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 },	/* MCP67 */
 477	{ PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 },	/* MCP67 */
 478	{ PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux },	/* Linux ID */
 479	{ PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux },	/* Linux ID */
 480	{ PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux },	/* Linux ID */
 481	{ PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux },	/* Linux ID */
 482	{ PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux },	/* Linux ID */
 483	{ PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux },	/* Linux ID */
 484	{ PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux },	/* Linux ID */
 485	{ PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux },	/* Linux ID */
 486	{ PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux },	/* Linux ID */
 487	{ PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux },	/* Linux ID */
 488	{ PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux },	/* Linux ID */
 489	{ PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux },	/* Linux ID */
 490	{ PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux },	/* Linux ID */
 491	{ PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux },	/* Linux ID */
 492	{ PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux },	/* Linux ID */
 493	{ PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux },	/* Linux ID */
 494	{ PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 },	/* MCP73 */
 495	{ PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 },	/* MCP73 */
 496	{ PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 },	/* MCP73 */
 497	{ PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 },	/* MCP73 */
 498	{ PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 },	/* MCP73 */
 499	{ PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 },	/* MCP73 */
 500	{ PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 },	/* MCP73 */
 501	{ PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 },	/* MCP73 */
 502	{ PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 },	/* MCP73 */
 503	{ PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 },	/* MCP73 */
 504	{ PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 },	/* MCP73 */
 505	{ PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 },	/* MCP73 */
 506	{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 },	/* MCP77 */
 507	{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 },	/* MCP77 */
 508	{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 },	/* MCP77 */
 509	{ PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 },	/* MCP77 */
 510	{ PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 },	/* MCP77 */
 511	{ PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 },	/* MCP77 */
 512	{ PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 },	/* MCP77 */
 513	{ PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 },	/* MCP77 */
 514	{ PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 },	/* MCP77 */
 515	{ PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 },	/* MCP77 */
 516	{ PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 },	/* MCP77 */
 517	{ PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 },	/* MCP77 */
 518	{ PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 },	/* MCP79 */
 519	{ PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 },	/* MCP79 */
 520	{ PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 },	/* MCP79 */
 521	{ PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 },	/* MCP79 */
 522	{ PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 },	/* MCP79 */
 523	{ PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 },	/* MCP79 */
 524	{ PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 },	/* MCP79 */
 525	{ PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 },	/* MCP79 */
 526	{ PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 },	/* MCP79 */
 527	{ PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 },	/* MCP79 */
 528	{ PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 },	/* MCP79 */
 529	{ PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 },	/* MCP79 */
 530	{ PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 },	/* MCP89 */
 531	{ PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 },	/* MCP89 */
 532	{ PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 },	/* MCP89 */
 533	{ PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 },	/* MCP89 */
 534	{ PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 },	/* MCP89 */
 535	{ PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 },	/* MCP89 */
 536	{ PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 },	/* MCP89 */
 537	{ PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 },	/* MCP89 */
 538	{ PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 },	/* MCP89 */
 539	{ PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 },	/* MCP89 */
 540	{ PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 },	/* MCP89 */
 541	{ PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 },	/* MCP89 */
 542
 543	/* SiS */
 544	{ PCI_VDEVICE(SI, 0x1184), board_ahci },		/* SiS 966 */
 545	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
 546	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
 547
 548	/* ST Microelectronics */
 549	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
 550
 551	/* Marvell */
 552	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
 553	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
 554	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9123),
 555	  .class = PCI_CLASS_STORAGE_SATA_AHCI,
 556	  .class_mask = 0xffffff,
 557	  .driver_data = board_ahci_yes_fbs },			/* 88se9128 */
 558	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9125),
 559	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
 560	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_MARVELL_EXT, 0x9178,
 561			 PCI_VENDOR_ID_MARVELL_EXT, 0x9170),
 562	  .driver_data = board_ahci_yes_fbs },			/* 88se9170 */
 563	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
 564	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
 565	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
 566	  .driver_data = board_ahci_yes_fbs },			/* 88se9182 */
 567	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
 568	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
 569	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
 570	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
 571	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
 572	  .driver_data = board_ahci_yes_fbs },
 573	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a2), 	/* 88se91a2 */
 574	  .driver_data = board_ahci_yes_fbs },
 575	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
 576	  .driver_data = board_ahci_yes_fbs },
 577	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
 578	  .driver_data = board_ahci_yes_fbs },
 579	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642), /* highpoint rocketraid 642L */
 580	  .driver_data = board_ahci_yes_fbs },
 581	{ PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0645), /* highpoint rocketraid 644L */
 582	  .driver_data = board_ahci_yes_fbs },
 583
 584	/* Promise */
 585	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
 586	{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
 587
 588	/* Asmedia */
 589	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
 590	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
 591	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
 592	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
 593	{ PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci },   /* ASM1061R */
 594	{ PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci },   /* ASM1062R */
 595
 596	/*
 597	 * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
 598	 * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
 599	 */
 600	{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
 601	{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
 602
 603	/* Enmotus */
 604	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
 605
 606	/* Loongson */
 607	{ PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci },
 608
 609	/* Generic, PCI class code for AHCI */
 610	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 611	  PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
 612
 613	{ }	/* terminate list */
 614};
 615
 616static const struct dev_pm_ops ahci_pci_pm_ops = {
 617	SET_SYSTEM_SLEEP_PM_OPS(ahci_pci_device_suspend, ahci_pci_device_resume)
 618	SET_RUNTIME_PM_OPS(ahci_pci_device_runtime_suspend,
 619			   ahci_pci_device_runtime_resume, NULL)
 620};
 621
 622static struct pci_driver ahci_pci_driver = {
 623	.name			= DRV_NAME,
 624	.id_table		= ahci_pci_tbl,
 625	.probe			= ahci_init_one,
 626	.remove			= ahci_remove_one,
 627	.shutdown		= ahci_shutdown_one,
 628	.driver = {
 629		.pm		= &ahci_pci_pm_ops,
 630	},
 631};
 632
 633#if IS_ENABLED(CONFIG_PATA_MARVELL)
 634static int marvell_enable;
 635#else
 636static int marvell_enable = 1;
 637#endif
 638module_param(marvell_enable, int, 0644);
 639MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)");
 640
 641static int mobile_lpm_policy = -1;
 642module_param(mobile_lpm_policy, int, 0644);
 643MODULE_PARM_DESC(mobile_lpm_policy, "Default LPM policy for mobile chipsets");
 644
 645static void ahci_pci_save_initial_config(struct pci_dev *pdev,
 646					 struct ahci_host_priv *hpriv)
 647{
 
 
 
 648	if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) {
 649		dev_info(&pdev->dev, "JMB361 has only one port\n");
 650		hpriv->force_port_map = 1;
 651	}
 652
 653	/*
 654	 * Temporary Marvell 6145 hack: PATA port presence
 655	 * is asserted through the standard AHCI port
 656	 * presence register, as bit 4 (counting from 0)
 657	 */
 658	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
 659		if (pdev->device == 0x6121)
 660			hpriv->mask_port_map = 0x3;
 661		else
 662			hpriv->mask_port_map = 0xf;
 663		dev_info(&pdev->dev,
 664			  "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n");
 665	}
 666
 667	ahci_save_initial_config(&pdev->dev, hpriv);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 668}
 669
 670static void ahci_pci_init_controller(struct ata_host *host)
 671{
 672	struct ahci_host_priv *hpriv = host->private_data;
 673	struct pci_dev *pdev = to_pci_dev(host->dev);
 674	void __iomem *port_mmio;
 675	u32 tmp;
 676	int mv;
 677
 678	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
 679		if (pdev->device == 0x6121)
 680			mv = 2;
 681		else
 682			mv = 4;
 683		port_mmio = __ahci_port_base(host, mv);
 684
 685		writel(0, port_mmio + PORT_IRQ_MASK);
 686
 687		/* clear port IRQ */
 688		tmp = readl(port_mmio + PORT_IRQ_STAT);
 689		VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
 690		if (tmp)
 691			writel(tmp, port_mmio + PORT_IRQ_STAT);
 692	}
 693
 694	ahci_init_controller(host);
 695}
 696
 697static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
 698				 unsigned long deadline)
 699{
 700	struct ata_port *ap = link->ap;
 701	struct ahci_host_priv *hpriv = ap->host->private_data;
 702	bool online;
 703	int rc;
 704
 705	DPRINTK("ENTER\n");
 706
 707	hpriv->stop_engine(ap);
 708
 709	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
 710				 deadline, &online, NULL);
 711
 712	hpriv->start_engine(ap);
 713
 714	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
 715
 716	/* vt8251 doesn't clear BSY on signature FIS reception,
 717	 * request follow-up softreset.
 718	 */
 719	return online ? -EAGAIN : rc;
 720}
 721
 722static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
 723				unsigned long deadline)
 724{
 725	struct ata_port *ap = link->ap;
 726	struct ahci_port_priv *pp = ap->private_data;
 727	struct ahci_host_priv *hpriv = ap->host->private_data;
 728	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
 729	struct ata_taskfile tf;
 730	bool online;
 731	int rc;
 732
 733	hpriv->stop_engine(ap);
 734
 735	/* clear D2H reception area to properly wait for D2H FIS */
 736	ata_tf_init(link->device, &tf);
 737	tf.command = ATA_BUSY;
 738	ata_tf_to_fis(&tf, 0, 0, d2h_fis);
 739
 740	rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
 741				 deadline, &online, NULL);
 742
 743	hpriv->start_engine(ap);
 744
 745	/* The pseudo configuration device on SIMG4726 attached to
 746	 * ASUS P5W-DH Deluxe doesn't send signature FIS after
 747	 * hardreset if no device is attached to the first downstream
 748	 * port && the pseudo device locks up on SRST w/ PMP==0.  To
 749	 * work around this, wait for !BSY only briefly.  If BSY isn't
 750	 * cleared, perform CLO and proceed to IDENTIFY (achieved by
 751	 * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA).
 752	 *
 753	 * Wait for two seconds.  Devices attached to downstream port
 754	 * which can't process the following IDENTIFY after this will
 755	 * have to be reset again.  For most cases, this should
 756	 * suffice while making probing snappish enough.
 757	 */
 758	if (online) {
 759		rc = ata_wait_after_reset(link, jiffies + 2 * HZ,
 760					  ahci_check_ready);
 761		if (rc)
 762			ahci_kick_engine(ap);
 763	}
 764	return rc;
 765}
 766
 767/*
 768 * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports.
 769 *
 770 * It has been observed with some SSDs that the timing of events in the
 771 * link synchronization phase can leave the port in a state that can not
 772 * be recovered by a SATA-hard-reset alone.  The failing signature is
 773 * SStatus.DET stuck at 1 ("Device presence detected but Phy
 774 * communication not established").  It was found that unloading and
 775 * reloading the driver when this problem occurs allows the drive
 776 * connection to be recovered (DET advanced to 0x3).  The critical
 777 * component of reloading the driver is that the port state machines are
 778 * reset by bouncing "port enable" in the AHCI PCS configuration
 779 * register.  So, reproduce that effect by bouncing a port whenever we
 780 * see DET==1 after a reset.
 781 */
 782static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
 783			      unsigned long deadline)
 784{
 785	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
 786	struct ata_port *ap = link->ap;
 787	struct ahci_port_priv *pp = ap->private_data;
 788	struct ahci_host_priv *hpriv = ap->host->private_data;
 789	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
 790	unsigned long tmo = deadline - jiffies;
 791	struct ata_taskfile tf;
 792	bool online;
 793	int rc, i;
 794
 795	DPRINTK("ENTER\n");
 796
 797	hpriv->stop_engine(ap);
 798
 799	for (i = 0; i < 2; i++) {
 800		u16 val;
 801		u32 sstatus;
 802		int port = ap->port_no;
 803		struct ata_host *host = ap->host;
 804		struct pci_dev *pdev = to_pci_dev(host->dev);
 805
 806		/* clear D2H reception area to properly wait for D2H FIS */
 807		ata_tf_init(link->device, &tf);
 808		tf.command = ATA_BUSY;
 809		ata_tf_to_fis(&tf, 0, 0, d2h_fis);
 810
 811		rc = sata_link_hardreset(link, timing, deadline, &online,
 812				ahci_check_ready);
 813
 814		if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 ||
 815				(sstatus & 0xf) != 1)
 816			break;
 817
 818		ata_link_info(link,  "avn bounce port%d\n", port);
 819
 820		pci_read_config_word(pdev, 0x92, &val);
 821		val &= ~(1 << port);
 822		pci_write_config_word(pdev, 0x92, val);
 823		ata_msleep(ap, 1000);
 824		val |= 1 << port;
 825		pci_write_config_word(pdev, 0x92, val);
 826		deadline += tmo;
 827	}
 828
 829	hpriv->start_engine(ap);
 830
 831	if (online)
 832		*class = ahci_dev_classify(ap);
 833
 834	DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class);
 835	return rc;
 836}
 837
 838
 839#ifdef CONFIG_PM
 840static void ahci_pci_disable_interrupts(struct ata_host *host)
 841{
 
 842	struct ahci_host_priv *hpriv = host->private_data;
 843	void __iomem *mmio = hpriv->mmio;
 844	u32 ctl;
 845
 846	/* AHCI spec rev1.1 section 8.3.3:
 847	 * Software must disable interrupts prior to requesting a
 848	 * transition of the HBA to D3 state.
 849	 */
 850	ctl = readl(mmio + HOST_CTL);
 851	ctl &= ~HOST_IRQ_EN;
 852	writel(ctl, mmio + HOST_CTL);
 853	readl(mmio + HOST_CTL); /* flush */
 854}
 855
 856static int ahci_pci_device_runtime_suspend(struct device *dev)
 857{
 858	struct pci_dev *pdev = to_pci_dev(dev);
 859	struct ata_host *host = pci_get_drvdata(pdev);
 860
 861	ahci_pci_disable_interrupts(host);
 862	return 0;
 863}
 864
 865static int ahci_pci_device_runtime_resume(struct device *dev)
 866{
 867	struct pci_dev *pdev = to_pci_dev(dev);
 868	struct ata_host *host = pci_get_drvdata(pdev);
 869	int rc;
 870
 871	rc = ahci_reset_controller(host);
 872	if (rc)
 873		return rc;
 874	ahci_pci_init_controller(host);
 875	return 0;
 876}
 877
 878#ifdef CONFIG_PM_SLEEP
 879static int ahci_pci_device_suspend(struct device *dev)
 880{
 881	struct pci_dev *pdev = to_pci_dev(dev);
 882	struct ata_host *host = pci_get_drvdata(pdev);
 883	struct ahci_host_priv *hpriv = host->private_data;
 884
 885	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
 886		dev_err(&pdev->dev,
 887			"BIOS update required for suspend/resume\n");
 888		return -EIO;
 889	}
 890
 891	ahci_pci_disable_interrupts(host);
 892	return ata_host_suspend(host, PMSG_SUSPEND);
 
 
 
 
 
 
 
 
 
 
 893}
 894
 895static int ahci_pci_device_resume(struct device *dev)
 896{
 897	struct pci_dev *pdev = to_pci_dev(dev);
 898	struct ata_host *host = pci_get_drvdata(pdev);
 899	int rc;
 900
 901	/* Apple BIOS helpfully mangles the registers on resume */
 902	if (is_mcp89_apple(pdev))
 903		ahci_mcp89_apple_enable(pdev);
 904
 905	if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
 906		rc = ahci_reset_controller(host);
 907		if (rc)
 908			return rc;
 909
 910		ahci_pci_init_controller(host);
 911	}
 912
 913	ata_host_resume(host);
 914
 915	return 0;
 916}
 917#endif
 918
 919#endif /* CONFIG_PM */
 920
 921static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 922{
 923	const int dma_bits = using_dac ? 64 : 32;
 924	int rc;
 925
 926	/*
 927	 * If the device fixup already set the dma_mask to some non-standard
 928	 * value, don't extend it here. This happens on STA2X11, for example.
 929	 *
 930	 * XXX: manipulating the DMA mask from platform code is completely
 931	 * bogus, platform code should use dev->bus_dma_limit instead..
 932	 */
 933	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
 934		return 0;
 935
 936	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_bits));
 937	if (rc)
 938		dev_err(&pdev->dev, "DMA enable failed\n");
 939	return rc;
 
 
 
 
 
 
 
 
 
 
 
 940}
 941
 942static void ahci_pci_print_info(struct ata_host *host)
 943{
 944	struct pci_dev *pdev = to_pci_dev(host->dev);
 945	u16 cc;
 946	const char *scc_s;
 947
 948	pci_read_config_word(pdev, 0x0a, &cc);
 949	if (cc == PCI_CLASS_STORAGE_IDE)
 950		scc_s = "IDE";
 951	else if (cc == PCI_CLASS_STORAGE_SATA)
 952		scc_s = "SATA";
 953	else if (cc == PCI_CLASS_STORAGE_RAID)
 954		scc_s = "RAID";
 955	else
 956		scc_s = "unknown";
 957
 958	ahci_print_info(host, scc_s);
 959}
 960
 961/* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is
 962 * hardwired to on-board SIMG 4726.  The chipset is ICH8 and doesn't
 963 * support PMP and the 4726 either directly exports the device
 964 * attached to the first downstream port or acts as a hardware storage
 965 * controller and emulate a single ATA device (can be RAID 0/1 or some
 966 * other configuration).
 967 *
 968 * When there's no device attached to the first downstream port of the
 969 * 4726, "Config Disk" appears, which is a pseudo ATA device to
 970 * configure the 4726.  However, ATA emulation of the device is very
 971 * lame.  It doesn't send signature D2H Reg FIS after the initial
 972 * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues.
 973 *
 974 * The following function works around the problem by always using
 975 * hardreset on the port and not depending on receiving signature FIS
 976 * afterward.  If signature FIS isn't received soon, ATA class is
 977 * assumed without follow-up softreset.
 978 */
 979static void ahci_p5wdh_workaround(struct ata_host *host)
 980{
 981	static const struct dmi_system_id sysids[] = {
 982		{
 983			.ident = "P5W DH Deluxe",
 984			.matches = {
 985				DMI_MATCH(DMI_SYS_VENDOR,
 986					  "ASUSTEK COMPUTER INC"),
 987				DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"),
 988			},
 989		},
 990		{ }
 991	};
 992	struct pci_dev *pdev = to_pci_dev(host->dev);
 993
 994	if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) &&
 995	    dmi_check_system(sysids)) {
 996		struct ata_port *ap = host->ports[1];
 997
 998		dev_info(&pdev->dev,
 999			 "enabling ASUS P5W DH Deluxe on-board SIMG4726 workaround\n");
1000
1001		ap->ops = &ahci_p5wdh_ops;
1002		ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA;
1003	}
1004}
1005
1006/*
1007 * Macbook7,1 firmware forcibly disables MCP89 AHCI and changes PCI ID when
1008 * booting in BIOS compatibility mode.  We restore the registers but not ID.
1009 */
1010static void ahci_mcp89_apple_enable(struct pci_dev *pdev)
1011{
1012	u32 val;
1013
1014	printk(KERN_INFO "ahci: enabling MCP89 AHCI mode\n");
1015
1016	pci_read_config_dword(pdev, 0xf8, &val);
1017	val |= 1 << 0x1b;
1018	/* the following changes the device ID, but appears not to affect function */
1019	/* val = (val & ~0xf0000000) | 0x80000000; */
1020	pci_write_config_dword(pdev, 0xf8, val);
1021
1022	pci_read_config_dword(pdev, 0x54c, &val);
1023	val |= 1 << 0xc;
1024	pci_write_config_dword(pdev, 0x54c, val);
1025
1026	pci_read_config_dword(pdev, 0x4a4, &val);
1027	val &= 0xff;
1028	val |= 0x01060100;
1029	pci_write_config_dword(pdev, 0x4a4, val);
1030
1031	pci_read_config_dword(pdev, 0x54c, &val);
1032	val &= ~(1 << 0xc);
1033	pci_write_config_dword(pdev, 0x54c, val);
1034
1035	pci_read_config_dword(pdev, 0xf8, &val);
1036	val &= ~(1 << 0x1b);
1037	pci_write_config_dword(pdev, 0xf8, val);
1038}
1039
1040static bool is_mcp89_apple(struct pci_dev *pdev)
1041{
1042	return pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
1043		pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
1044		pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1045		pdev->subsystem_device == 0xcb89;
1046}
1047
1048/* only some SB600 ahci controllers can do 64bit DMA */
1049static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
1050{
1051	static const struct dmi_system_id sysids[] = {
1052		/*
1053		 * The oldest version known to be broken is 0901 and
1054		 * working is 1501 which was released on 2007-10-26.
1055		 * Enable 64bit DMA on 1501 and anything newer.
1056		 *
1057		 * Please read bko#9412 for more info.
1058		 */
1059		{
1060			.ident = "ASUS M2A-VM",
1061			.matches = {
1062				DMI_MATCH(DMI_BOARD_VENDOR,
1063					  "ASUSTeK Computer INC."),
1064				DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"),
1065			},
1066			.driver_data = "20071026",	/* yyyymmdd */
1067		},
1068		/*
1069		 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
1070		 * support 64bit DMA.
1071		 *
1072		 * BIOS versions earlier than 1.5 had the Manufacturer DMI
1073		 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
1074		 * This spelling mistake was fixed in BIOS version 1.5, so
1075		 * 1.5 and later have the Manufacturer as
1076		 * "MICRO-STAR INTERNATIONAL CO.,LTD".
1077		 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
1078		 *
1079		 * BIOS versions earlier than 1.9 had a Board Product Name
1080		 * DMI field of "MS-7376". This was changed to be
1081		 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
1082		 * match on DMI_BOARD_NAME of "MS-7376".
1083		 */
1084		{
1085			.ident = "MSI K9A2 Platinum",
1086			.matches = {
1087				DMI_MATCH(DMI_BOARD_VENDOR,
1088					  "MICRO-STAR INTER"),
1089				DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
1090			},
1091		},
1092		/*
1093		 * All BIOS versions for the MSI K9AGM2 (MS-7327) support
1094		 * 64bit DMA.
1095		 *
1096		 * This board also had the typo mentioned above in the
1097		 * Manufacturer DMI field (fixed in BIOS version 1.5), so
1098		 * match on DMI_BOARD_VENDOR of "MICRO-STAR INTER" again.
1099		 */
1100		{
1101			.ident = "MSI K9AGM2",
1102			.matches = {
1103				DMI_MATCH(DMI_BOARD_VENDOR,
1104					  "MICRO-STAR INTER"),
1105				DMI_MATCH(DMI_BOARD_NAME, "MS-7327"),
1106			},
1107		},
1108		/*
1109		 * All BIOS versions for the Asus M3A support 64bit DMA.
1110		 * (all release versions from 0301 to 1206 were tested)
1111		 */
1112		{
1113			.ident = "ASUS M3A",
1114			.matches = {
1115				DMI_MATCH(DMI_BOARD_VENDOR,
1116					  "ASUSTeK Computer INC."),
1117				DMI_MATCH(DMI_BOARD_NAME, "M3A"),
1118			},
1119		},
1120		{ }
1121	};
1122	const struct dmi_system_id *match;
1123	int year, month, date;
1124	char buf[9];
1125
1126	match = dmi_first_match(sysids);
1127	if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) ||
1128	    !match)
1129		return false;
1130
1131	if (!match->driver_data)
1132		goto enable_64bit;
1133
1134	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1135	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1136
1137	if (strcmp(buf, match->driver_data) >= 0)
1138		goto enable_64bit;
1139	else {
1140		dev_warn(&pdev->dev,
1141			 "%s: BIOS too old, forcing 32bit DMA, update BIOS\n",
1142			 match->ident);
1143		return false;
1144	}
1145
1146enable_64bit:
1147	dev_warn(&pdev->dev, "%s: enabling 64bit DMA\n", match->ident);
1148	return true;
1149}
1150
1151static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
1152{
1153	static const struct dmi_system_id broken_systems[] = {
1154		{
1155			.ident = "HP Compaq nx6310",
1156			.matches = {
1157				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1158				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"),
1159			},
1160			/* PCI slot number of the controller */
1161			.driver_data = (void *)0x1FUL,
1162		},
1163		{
1164			.ident = "HP Compaq 6720s",
1165			.matches = {
1166				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1167				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
1168			},
1169			/* PCI slot number of the controller */
1170			.driver_data = (void *)0x1FUL,
1171		},
1172
1173		{ }	/* terminate list */
1174	};
1175	const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
1176
1177	if (dmi) {
1178		unsigned long slot = (unsigned long)dmi->driver_data;
1179		/* apply the quirk only to on-board controllers */
1180		return slot == PCI_SLOT(pdev->devfn);
1181	}
1182
1183	return false;
1184}
1185
1186static bool ahci_broken_suspend(struct pci_dev *pdev)
1187{
1188	static const struct dmi_system_id sysids[] = {
1189		/*
1190		 * On HP dv[4-6] and HDX18 with earlier BIOSen, link
1191		 * to the harddisk doesn't become online after
1192		 * resuming from STR.  Warn and fail suspend.
1193		 *
1194		 * http://bugzilla.kernel.org/show_bug.cgi?id=12276
1195		 *
1196		 * Use dates instead of versions to match as HP is
1197		 * apparently recycling both product and version
1198		 * strings.
1199		 *
1200		 * http://bugzilla.kernel.org/show_bug.cgi?id=15462
1201		 */
1202		{
1203			.ident = "dv4",
1204			.matches = {
1205				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1206				DMI_MATCH(DMI_PRODUCT_NAME,
1207					  "HP Pavilion dv4 Notebook PC"),
1208			},
1209			.driver_data = "20090105",	/* F.30 */
1210		},
1211		{
1212			.ident = "dv5",
1213			.matches = {
1214				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1215				DMI_MATCH(DMI_PRODUCT_NAME,
1216					  "HP Pavilion dv5 Notebook PC"),
1217			},
1218			.driver_data = "20090506",	/* F.16 */
1219		},
1220		{
1221			.ident = "dv6",
1222			.matches = {
1223				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1224				DMI_MATCH(DMI_PRODUCT_NAME,
1225					  "HP Pavilion dv6 Notebook PC"),
1226			},
1227			.driver_data = "20090423",	/* F.21 */
1228		},
1229		{
1230			.ident = "HDX18",
1231			.matches = {
1232				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1233				DMI_MATCH(DMI_PRODUCT_NAME,
1234					  "HP HDX18 Notebook PC"),
1235			},
1236			.driver_data = "20090430",	/* F.23 */
1237		},
1238		/*
1239		 * Acer eMachines G725 has the same problem.  BIOS
1240		 * V1.03 is known to be broken.  V3.04 is known to
1241		 * work.  Between, there are V1.06, V2.06 and V3.03
1242		 * that we don't have much idea about.  For now,
1243		 * blacklist anything older than V3.04.
1244		 *
1245		 * http://bugzilla.kernel.org/show_bug.cgi?id=15104
1246		 */
1247		{
1248			.ident = "G725",
1249			.matches = {
1250				DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
1251				DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
1252			},
1253			.driver_data = "20091216",	/* V3.04 */
1254		},
1255		{ }	/* terminate list */
1256	};
1257	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1258	int year, month, date;
1259	char buf[9];
1260
1261	if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
1262		return false;
1263
1264	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1265	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1266
1267	return strcmp(buf, dmi->driver_data) < 0;
1268}
1269
1270static bool ahci_broken_lpm(struct pci_dev *pdev)
1271{
1272	static const struct dmi_system_id sysids[] = {
1273		/* Various Lenovo 50 series have LPM issues with older BIOSen */
1274		{
1275			.matches = {
1276				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1277				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X250"),
1278			},
1279			.driver_data = "20180406", /* 1.31 */
1280		},
1281		{
1282			.matches = {
1283				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1284				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L450"),
1285			},
1286			.driver_data = "20180420", /* 1.28 */
1287		},
1288		{
1289			.matches = {
1290				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1291				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T450s"),
1292			},
1293			.driver_data = "20180315", /* 1.33 */
1294		},
1295		{
1296			.matches = {
1297				DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
1298				DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W541"),
1299			},
1300			/*
1301			 * Note date based on release notes, 2.35 has been
1302			 * reported to be good, but I've been unable to get
1303			 * a hold of the reporter to get the DMI BIOS date.
1304			 * TODO: fix this.
1305			 */
1306			.driver_data = "20180310", /* 2.35 */
1307		},
1308		{ }	/* terminate list */
1309	};
1310	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1311	int year, month, date;
1312	char buf[9];
1313
1314	if (!dmi)
1315		return false;
1316
1317	dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
1318	snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
1319
1320	return strcmp(buf, dmi->driver_data) < 0;
1321}
1322
1323static bool ahci_broken_online(struct pci_dev *pdev)
1324{
1325#define ENCODE_BUSDEVFN(bus, slot, func)			\
1326	(void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func)))
1327	static const struct dmi_system_id sysids[] = {
1328		/*
1329		 * There are several gigabyte boards which use
1330		 * SIMG5723s configured as hardware RAID.  Certain
1331		 * 5723 firmware revisions shipped there keep the link
1332		 * online but fail to answer properly to SRST or
1333		 * IDENTIFY when no device is attached downstream
1334		 * causing libata to retry quite a few times leading
1335		 * to excessive detection delay.
1336		 *
1337		 * As these firmwares respond to the second reset try
1338		 * with invalid device signature, considering unknown
1339		 * sig as offline works around the problem acceptably.
1340		 */
1341		{
1342			.ident = "EP45-DQ6",
1343			.matches = {
1344				DMI_MATCH(DMI_BOARD_VENDOR,
1345					  "Gigabyte Technology Co., Ltd."),
1346				DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"),
1347			},
1348			.driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0),
1349		},
1350		{
1351			.ident = "EP45-DS5",
1352			.matches = {
1353				DMI_MATCH(DMI_BOARD_VENDOR,
1354					  "Gigabyte Technology Co., Ltd."),
1355				DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"),
1356			},
1357			.driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0),
1358		},
1359		{ }	/* terminate list */
1360	};
1361#undef ENCODE_BUSDEVFN
1362	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1363	unsigned int val;
1364
1365	if (!dmi)
1366		return false;
1367
1368	val = (unsigned long)dmi->driver_data;
1369
1370	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
1371}
1372
1373static bool ahci_broken_devslp(struct pci_dev *pdev)
1374{
1375	/* device with broken DEVSLP but still showing SDS capability */
1376	static const struct pci_device_id ids[] = {
1377		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
1378		{}
1379	};
1380
1381	return pci_match_id(ids, pdev);
1382}
1383
1384#ifdef CONFIG_ATA_ACPI
1385static void ahci_gtf_filter_workaround(struct ata_host *host)
1386{
1387	static const struct dmi_system_id sysids[] = {
1388		/*
1389		 * Aspire 3810T issues a bunch of SATA enable commands
1390		 * via _GTF including an invalid one and one which is
1391		 * rejected by the device.  Among the successful ones
1392		 * is FPDMA non-zero offset enable which when enabled
1393		 * only on the drive side leads to NCQ command
1394		 * failures.  Filter it out.
1395		 */
1396		{
1397			.ident = "Aspire 3810T",
1398			.matches = {
1399				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1400				DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"),
1401			},
1402			.driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET,
1403		},
1404		{ }
1405	};
1406	const struct dmi_system_id *dmi = dmi_first_match(sysids);
1407	unsigned int filter;
1408	int i;
1409
1410	if (!dmi)
1411		return;
1412
1413	filter = (unsigned long)dmi->driver_data;
1414	dev_info(host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n",
1415		 filter, dmi->ident);
1416
1417	for (i = 0; i < host->n_ports; i++) {
1418		struct ata_port *ap = host->ports[i];
1419		struct ata_link *link;
1420		struct ata_device *dev;
1421
1422		ata_for_each_link(link, ap, EDGE)
1423			ata_for_each_dev(dev, link, ALL)
1424				dev->gtf_filter |= filter;
1425	}
1426}
1427#else
1428static inline void ahci_gtf_filter_workaround(struct ata_host *host)
1429{}
1430#endif
1431
1432/*
1433 * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
1434 * as DUMMY, or detected but eventually get a "link down" and never get up
1435 * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
1436 * port_map may hold a value of 0x00.
1437 *
1438 * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
1439 * and can significantly reduce the occurrence of the problem.
1440 *
1441 * https://bugzilla.kernel.org/show_bug.cgi?id=189471
1442 */
1443static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
1444				    struct pci_dev *pdev)
1445{
1446	static const struct dmi_system_id sysids[] = {
1447		{
1448			.ident = "Acer Switch Alpha 12",
1449			.matches = {
1450				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
1451				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
1452			},
1453		},
1454		{ }
1455	};
1456
1457	if (dmi_check_system(sysids)) {
1458		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
1459		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
1460			hpriv->port_map = 0x7;
1461			hpriv->cap = 0xC734FF02;
1462		}
1463	}
1464}
1465
1466#ifdef CONFIG_ARM64
1467/*
1468 * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
1469 * Workaround is to make sure all pending IRQs are served before leaving
1470 * handler.
1471 */
1472static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
1473{
1474	struct ata_host *host = dev_instance;
1475	struct ahci_host_priv *hpriv;
1476	unsigned int rc = 0;
1477	void __iomem *mmio;
1478	u32 irq_stat, irq_masked;
1479	unsigned int handled = 1;
1480
1481	VPRINTK("ENTER\n");
1482	hpriv = host->private_data;
1483	mmio = hpriv->mmio;
1484	irq_stat = readl(mmio + HOST_IRQ_STAT);
1485	if (!irq_stat)
1486		return IRQ_NONE;
1487
1488	do {
1489		irq_masked = irq_stat & hpriv->port_map;
1490		spin_lock(&host->lock);
1491		rc = ahci_handle_port_intr(host, irq_masked);
1492		if (!rc)
1493			handled = 0;
1494		writel(irq_stat, mmio + HOST_IRQ_STAT);
1495		irq_stat = readl(mmio + HOST_IRQ_STAT);
1496		spin_unlock(&host->lock);
1497	} while (irq_stat);
1498	VPRINTK("EXIT\n");
1499
1500	return IRQ_RETVAL(handled);
1501}
1502#endif
1503
1504static void ahci_remap_check(struct pci_dev *pdev, int bar,
1505		struct ahci_host_priv *hpriv)
1506{
1507	int i;
1508	u32 cap;
1509
1510	/*
1511	 * Check if this device might have remapped nvme devices.
1512	 */
1513	if (pdev->vendor != PCI_VENDOR_ID_INTEL ||
1514	    pci_resource_len(pdev, bar) < SZ_512K ||
1515	    bar != AHCI_PCI_BAR_STANDARD ||
1516	    !(readl(hpriv->mmio + AHCI_VSCAP) & 1))
1517		return;
1518
1519	cap = readq(hpriv->mmio + AHCI_REMAP_CAP);
1520	for (i = 0; i < AHCI_MAX_REMAP; i++) {
1521		if ((cap & (1 << i)) == 0)
1522			continue;
1523		if (readl(hpriv->mmio + ahci_remap_dcc(i))
1524				!= PCI_CLASS_STORAGE_EXPRESS)
1525			continue;
1526
1527		/* We've found a remapped device */
1528		hpriv->remapped_nvme++;
1529	}
1530
1531	if (!hpriv->remapped_nvme)
1532		return;
1533
1534	dev_warn(&pdev->dev, "Found %u remapped NVMe devices.\n",
1535		 hpriv->remapped_nvme);
1536	dev_warn(&pdev->dev,
1537		 "Switch your BIOS from RAID to AHCI mode to use them.\n");
1538
1539	/*
1540	 * Don't rely on the msi-x capability in the remap case,
1541	 * share the legacy interrupt across ahci and remapped devices.
1542	 */
1543	hpriv->flags |= AHCI_HFLAG_NO_MSI;
1544}
1545
1546static int ahci_get_irq_vector(struct ata_host *host, int port)
1547{
1548	return pci_irq_vector(to_pci_dev(host->dev), port);
1549}
1550
1551static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
1552			struct ahci_host_priv *hpriv)
1553{
1554	int nvec;
1555
1556	if (hpriv->flags & AHCI_HFLAG_NO_MSI)
1557		return -ENODEV;
1558
1559	/*
1560	 * If number of MSIs is less than number of ports then Sharing Last
1561	 * Message mode could be enforced. In this case assume that advantage
1562	 * of multipe MSIs is negated and use single MSI mode instead.
1563	 */
1564	if (n_ports > 1) {
1565		nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
1566				PCI_IRQ_MSIX | PCI_IRQ_MSI);
1567		if (nvec > 0) {
1568			if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
1569				hpriv->get_irq_vector = ahci_get_irq_vector;
1570				hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
1571				return nvec;
1572			}
1573
1574			/*
1575			 * Fallback to single MSI mode if the controller
1576			 * enforced MRSM mode.
1577			 */
1578			printk(KERN_INFO
1579				"ahci: MRSM is on, fallback to single MSI\n");
1580			pci_free_irq_vectors(pdev);
1581		}
1582	}
1583
1584	/*
1585	 * If the host is not capable of supporting per-port vectors, fall
1586	 * back to single MSI before finally attempting single MSI-X.
1587	 */
1588	nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
1589	if (nvec == 1)
1590		return nvec;
1591	return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
1592}
1593
1594static void ahci_update_initial_lpm_policy(struct ata_port *ap,
1595					   struct ahci_host_priv *hpriv)
1596{
1597	int policy = CONFIG_SATA_MOBILE_LPM_POLICY;
1598
1599
1600	/* Ignore processing for non mobile platforms */
1601	if (!(hpriv->flags & AHCI_HFLAG_IS_MOBILE))
1602		return;
1603
1604	/* user modified policy via module param */
1605	if (mobile_lpm_policy != -1) {
1606		policy = mobile_lpm_policy;
1607		goto update_policy;
1608	}
1609
1610#ifdef CONFIG_ACPI
1611	if (policy > ATA_LPM_MED_POWER &&
1612	    (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
1613		if (hpriv->cap & HOST_CAP_PART)
1614			policy = ATA_LPM_MIN_POWER_WITH_PARTIAL;
1615		else if (hpriv->cap & HOST_CAP_SSC)
1616			policy = ATA_LPM_MIN_POWER;
1617	}
1618#endif
1619
1620update_policy:
1621	if (policy >= ATA_LPM_UNKNOWN && policy <= ATA_LPM_MIN_POWER)
1622		ap->target_lpm_policy = policy;
1623}
1624
1625static void ahci_intel_pcs_quirk(struct pci_dev *pdev, struct ahci_host_priv *hpriv)
1626{
1627	const struct pci_device_id *id = pci_match_id(ahci_pci_tbl, pdev);
1628	u16 tmp16;
1629
1630	/*
1631	 * Only apply the 6-port PCS quirk for known legacy platforms.
1632	 */
1633	if (!id || id->vendor != PCI_VENDOR_ID_INTEL)
1634		return;
1635
1636	/* Skip applying the quirk on Denverton and beyond */
1637	if (((enum board_ids) id->driver_data) >= board_ahci_pcs7)
1638		return;
1639
1640	/*
1641	 * port_map is determined from PORTS_IMPL PCI register which is
1642	 * implemented as write or write-once register.  If the register
1643	 * isn't programmed, ahci automatically generates it from number
1644	 * of ports, which is good enough for PCS programming. It is
1645	 * otherwise expected that platform firmware enables the ports
1646	 * before the OS boots.
1647	 */
1648	pci_read_config_word(pdev, PCS_6, &tmp16);
1649	if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
1650		tmp16 |= hpriv->port_map;
1651		pci_write_config_word(pdev, PCS_6, tmp16);
1652	}
1653}
1654
1655static ssize_t remapped_nvme_show(struct device *dev,
1656				  struct device_attribute *attr,
1657				  char *buf)
1658{
1659	struct ata_host *host = dev_get_drvdata(dev);
1660	struct ahci_host_priv *hpriv = host->private_data;
1661
1662	return sprintf(buf, "%u\n", hpriv->remapped_nvme);
1663}
1664
1665static DEVICE_ATTR_RO(remapped_nvme);
1666
1667static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1668{
1669	unsigned int board_id = ent->driver_data;
1670	struct ata_port_info pi = ahci_port_info[board_id];
1671	const struct ata_port_info *ppi[] = { &pi, NULL };
1672	struct device *dev = &pdev->dev;
1673	struct ahci_host_priv *hpriv;
1674	struct ata_host *host;
1675	int n_ports, i, rc;
1676	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
1677
1678	VPRINTK("ENTER\n");
1679
1680	WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS);
1681
1682	ata_print_version_once(&pdev->dev, DRV_VERSION);
1683
1684	/* The AHCI driver can only drive the SATA ports, the PATA driver
1685	   can drive them all so if both drivers are selected make sure
1686	   AHCI stays out of the way */
1687	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
1688		return -ENODEV;
1689
1690	/* Apple BIOS on MCP89 prevents us using AHCI */
1691	if (is_mcp89_apple(pdev))
1692		ahci_mcp89_apple_enable(pdev);
 
 
 
 
 
 
1693
1694	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
1695	 * At the moment, we can only use the AHCI mode. Let the users know
1696	 * that for SAS drives they're out of luck.
1697	 */
1698	if (pdev->vendor == PCI_VENDOR_ID_PROMISE)
1699		dev_info(&pdev->dev,
1700			 "PDC42819 can only drive SATA devices with this driver\n");
1701
1702	/* Some devices use non-standard BARs */
1703	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
1704		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
1705	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
1706		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
1707	else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
1708		if (pdev->device == 0xa01c)
1709			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
1710		if (pdev->device == 0xa084)
1711			ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
1712	} else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) {
1713		if (pdev->device == 0x7a08)
1714			ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
1715	}
1716
1717	/* acquire resources */
1718	rc = pcim_enable_device(pdev);
1719	if (rc)
1720		return rc;
1721
 
 
 
 
 
 
 
 
 
1722	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
1723	    (pdev->device == 0x2652 || pdev->device == 0x2653)) {
1724		u8 map;
1725
1726		/* ICH6s share the same PCI ID for both piix and ahci
1727		 * modes.  Enabling ahci mode while MAP indicates
1728		 * combined mode is a bad idea.  Yield to ata_piix.
1729		 */
1730		pci_read_config_byte(pdev, ICH_MAP, &map);
1731		if (map & 0x3) {
1732			dev_info(&pdev->dev,
1733				 "controller is in combined mode, can't enable AHCI mode\n");
1734			return -ENODEV;
1735		}
1736	}
1737
1738	/* AHCI controllers often implement SFF compatible interface.
1739	 * Grab all PCI BARs just in case.
1740	 */
1741	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
1742	if (rc == -EBUSY)
1743		pcim_pin_device(pdev);
1744	if (rc)
1745		return rc;
1746
1747	hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
1748	if (!hpriv)
1749		return -ENOMEM;
1750	hpriv->flags |= (unsigned long)pi.private_data;
1751
1752	/* MCP65 revision A1 and A2 can't do MSI */
1753	if (board_id == board_ahci_mcp65 &&
1754	    (pdev->revision == 0xa1 || pdev->revision == 0xa2))
1755		hpriv->flags |= AHCI_HFLAG_NO_MSI;
1756
1757	/* SB800 does NOT need the workaround to ignore SERR_INTERNAL */
1758	if (board_id == board_ahci_sb700 && pdev->revision >= 0x40)
1759		hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL;
1760
1761	/* only some SB600s can do 64bit DMA */
1762	if (ahci_sb600_enable_64bit(pdev))
1763		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
1764
1765	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
1766
1767	/* detect remapped nvme devices */
1768	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
1769
1770	sysfs_add_file_to_group(&pdev->dev.kobj,
1771				&dev_attr_remapped_nvme.attr,
1772				NULL);
1773
1774	/* must set flag prior to save config in order to take effect */
1775	if (ahci_broken_devslp(pdev))
1776		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
1777
1778#ifdef CONFIG_ARM64
1779	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
1780	    pdev->device == 0xa235 &&
1781	    pdev->revision < 0x30)
1782		hpriv->flags |= AHCI_HFLAG_NO_SXS;
1783
1784	if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
1785		hpriv->irq_handler = ahci_thunderx_irq_handler;
1786#endif
1787
1788	/* save initial config */
1789	ahci_pci_save_initial_config(pdev, hpriv);
1790
1791	/*
1792	 * If platform firmware failed to enable ports, try to enable
1793	 * them here.
1794	 */
1795	ahci_intel_pcs_quirk(pdev, hpriv);
1796
1797	/* prepare host */
1798	if (hpriv->cap & HOST_CAP_NCQ) {
1799		pi.flags |= ATA_FLAG_NCQ;
1800		/*
1801		 * Auto-activate optimization is supposed to be
1802		 * supported on all AHCI controllers indicating NCQ
1803		 * capability, but it seems to be broken on some
1804		 * chipsets including NVIDIAs.
1805		 */
1806		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))
1807			pi.flags |= ATA_FLAG_FPDMA_AA;
1808
1809		/*
1810		 * All AHCI controllers should be forward-compatible
1811		 * with the new auxiliary field. This code should be
1812		 * conditionalized if any buggy AHCI controllers are
1813		 * encountered.
1814		 */
1815		pi.flags |= ATA_FLAG_FPDMA_AUX;
1816	}
1817
1818	if (hpriv->cap & HOST_CAP_PMP)
1819		pi.flags |= ATA_FLAG_PMP;
1820
1821	ahci_set_em_messages(hpriv, &pi);
1822
1823	if (ahci_broken_system_poweroff(pdev)) {
1824		pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN;
1825		dev_info(&pdev->dev,
1826			"quirky BIOS, skipping spindown on poweroff\n");
1827	}
1828
1829	if (ahci_broken_lpm(pdev)) {
1830		pi.flags |= ATA_FLAG_NO_LPM;
1831		dev_warn(&pdev->dev,
1832			 "BIOS update required for Link Power Management support\n");
1833	}
1834
1835	if (ahci_broken_suspend(pdev)) {
1836		hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
1837		dev_warn(&pdev->dev,
1838			 "BIOS update required for suspend/resume\n");
1839	}
1840
1841	if (ahci_broken_online(pdev)) {
1842		hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE;
1843		dev_info(&pdev->dev,
1844			 "online status unreliable, applying workaround\n");
1845	}
1846
1847
1848	/* Acer SA5-271 workaround modifies private_data */
1849	acer_sa5_271_workaround(hpriv, pdev);
1850
1851	/* CAP.NP sometimes indicate the index of the last enabled
1852	 * port, at other times, that of the last possible port, so
1853	 * determining the maximum port number requires looking at
1854	 * both CAP.NP and port_map.
1855	 */
1856	n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map));
1857
1858	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
1859	if (!host)
1860		return -ENOMEM;
1861	host->private_data = hpriv;
1862
1863	if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
1864		/* legacy intx interrupts */
1865		pci_intx(pdev, 1);
1866	}
1867	hpriv->irq = pci_irq_vector(pdev, 0);
1868
1869	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
1870		host->flags |= ATA_HOST_PARALLEL_SCAN;
1871	else
1872		dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
1873
1874	if (pi.flags & ATA_FLAG_EM)
1875		ahci_reset_em(host);
1876
1877	for (i = 0; i < host->n_ports; i++) {
1878		struct ata_port *ap = host->ports[i];
1879
1880		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
1881		ata_port_pbar_desc(ap, ahci_pci_bar,
1882				   0x100 + ap->port_no * 0x80, "port");
1883
1884		/* set enclosure management message type */
1885		if (ap->flags & ATA_FLAG_EM)
1886			ap->em_message_type = hpriv->em_msg_type;
1887
1888		ahci_update_initial_lpm_policy(ap, hpriv);
1889
1890		/* disabled/not-implemented port */
1891		if (!(hpriv->port_map & (1 << i)))
1892			ap->ops = &ata_dummy_port_ops;
1893	}
1894
1895	/* apply workaround for ASUS P5W DH Deluxe mainboard */
1896	ahci_p5wdh_workaround(host);
1897
1898	/* apply gtf filter quirk */
1899	ahci_gtf_filter_workaround(host);
1900
1901	/* initialize adapter */
1902	rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64);
1903	if (rc)
1904		return rc;
1905
1906	rc = ahci_reset_controller(host);
1907	if (rc)
1908		return rc;
1909
1910	ahci_pci_init_controller(host);
1911	ahci_pci_print_info(host);
1912
1913	pci_set_master(pdev);
1914
1915	rc = ahci_host_activate(host, &ahci_sht);
1916	if (rc)
1917		return rc;
1918
1919	pm_runtime_put_noidle(&pdev->dev);
1920	return 0;
1921}
1922
1923static void ahci_shutdown_one(struct pci_dev *pdev)
1924{
1925	ata_pci_shutdown_one(pdev);
1926}
1927
1928static void ahci_remove_one(struct pci_dev *pdev)
1929{
1930	sysfs_remove_file_from_group(&pdev->dev.kobj,
1931				     &dev_attr_remapped_nvme.attr,
1932				     NULL);
1933	pm_runtime_get_noresume(&pdev->dev);
1934	ata_pci_remove_one(pdev);
1935}
1936
1937module_pci_driver(ahci_pci_driver);
1938
1939MODULE_AUTHOR("Jeff Garzik");
1940MODULE_DESCRIPTION("AHCI SATA low-level driver");
1941MODULE_LICENSE("GPL");
1942MODULE_DEVICE_TABLE(pci, ahci_pci_tbl);
1943MODULE_VERSION(DRV_VERSION);