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|
/* $OpenBSD: ahci_pci.c,v 1.11 2015/03/14 03:38:48 jsg Exp $ */
/*
* Copyright (c) 2006 David Gwynne <dlg@openbsd.org>
* Copyright (c) 2010 Conformal Systems LLC <info@conformal.com>
* Copyright (c) 2010 Jonathan Matthew <jonathan@d14n.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/timeout.h>
#include <sys/queue.h>
#include <sys/mutex.h>
#include <sys/pool.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ata/pmreg.h>
#include <dev/ic/ahcireg.h>
#include <dev/ic/ahcivar.h>
#define AHCI_PCI_BAR 0x24
#define AHCI_PCI_ATI_SB600_MAGIC 0x40
#define AHCI_PCI_ATI_SB600_LOCKED 0x01
#define AHCI_PCI_INTERFACE 0x01
struct ahci_pci_softc {
struct ahci_softc psc_ahci;
pci_chipset_tag_t psc_pc;
pcitag_t psc_tag;
int psc_flags;
};
struct ahci_device {
pci_vendor_id_t ad_vendor;
pci_product_id_t ad_product;
int (*ad_match)(struct pci_attach_args *);
int (*ad_attach)(struct ahci_softc *,
struct pci_attach_args *);
};
const struct ahci_device *ahci_lookup_device(struct pci_attach_args *);
int ahci_no_match(struct pci_attach_args *);
int ahci_vt8251_attach(struct ahci_softc *,
struct pci_attach_args *);
void ahci_ati_sb_idetoahci(struct ahci_softc *,
struct pci_attach_args *pa);
int ahci_ati_sb600_attach(struct ahci_softc *,
struct pci_attach_args *);
int ahci_ati_sb700_attach(struct ahci_softc *,
struct pci_attach_args *);
int ahci_amd_hudson2_attach(struct ahci_softc *,
struct pci_attach_args *);
int ahci_intel_attach(struct ahci_softc *,
struct pci_attach_args *);
int ahci_samsung_attach(struct ahci_softc *,
struct pci_attach_args *);
static const struct ahci_device ahci_devices[] = {
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_1,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_2,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_3,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_4,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_5,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_AMD, PCI_PRODUCT_AMD_HUDSON2_SATA_6,
NULL, ahci_amd_hudson2_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SB600_SATA,
NULL, ahci_ati_sb600_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_1,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_2,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_3,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_4,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_5,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_ATI, PCI_PRODUCT_ATI_SBX00_SATA_6,
NULL, ahci_ati_sb700_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_6SERIES_AHCI_1,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_6SERIES_AHCI_2,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_6321ESB_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801GR_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801GBM_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801H_AHCI_6P,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801H_AHCI_4P,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801HBM_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801I_AHCI_1,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801I_AHCI_2,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801I_AHCI_3,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801JD_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_82801JI_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_3400_AHCI_1,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_3400_AHCI_2,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_3400_AHCI_3,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_3400_AHCI_4,
NULL, ahci_intel_attach },
{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_EP80579_AHCI,
NULL, ahci_intel_attach },
{ PCI_VENDOR_SAMSUNG2, PCI_PRODUCT_SAMSUNG2_S4LN053X01,
NULL, ahci_samsung_attach },
{ PCI_VENDOR_SAMSUNG2, PCI_PRODUCT_SAMSUNG2_XP941,
NULL, ahci_samsung_attach },
{ PCI_VENDOR_SAMSUNG2, PCI_PRODUCT_SAMSUNG2_SM951,
NULL, ahci_samsung_attach },
{ PCI_VENDOR_VIATECH, PCI_PRODUCT_VIATECH_VT8251_SATA,
ahci_no_match, ahci_vt8251_attach }
};
int ahci_pci_match(struct device *, void *, void *);
void ahci_pci_attach(struct device *, struct device *,
void *);
int ahci_pci_detach(struct device *, int);
int ahci_pci_activate(struct device *, int);
#ifdef HIBERNATE
#include <sys/hibernate.h>
#include <sys/disk.h>
#include <sys/disklabel.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
void ahci_hibernate_io_start(struct ahci_port *,
struct ahci_ccb *);
int ahci_hibernate_io_poll(struct ahci_port *,
struct ahci_ccb *);
void ahci_hibernate_load_prdt(struct ahci_ccb *);
int ahci_hibernate_io(dev_t dev, daddr_t blkno,
vaddr_t addr, size_t size, int wr, void *page);
#endif
struct cfattach ahci_pci_ca = {
sizeof(struct ahci_pci_softc),
ahci_pci_match,
ahci_pci_attach,
ahci_pci_detach,
ahci_pci_activate
};
struct cfattach ahci_jmb_ca = {
sizeof(struct ahci_pci_softc),
ahci_pci_match,
ahci_pci_attach,
ahci_pci_detach
};
int ahci_map_regs(struct ahci_pci_softc *,
struct pci_attach_args *);
void ahci_unmap_regs(struct ahci_pci_softc *);
int ahci_map_intr(struct ahci_pci_softc *,
struct pci_attach_args *, pci_intr_handle_t);
void ahci_unmap_intr(struct ahci_pci_softc *);
const struct ahci_device *
ahci_lookup_device(struct pci_attach_args *pa)
{
int i;
const struct ahci_device *ad;
for (i = 0; i < (sizeof(ahci_devices) / sizeof(ahci_devices[0])); i++) {
ad = &ahci_devices[i];
if (ad->ad_vendor == PCI_VENDOR(pa->pa_id) &&
ad->ad_product == PCI_PRODUCT(pa->pa_id))
return (ad);
}
return (NULL);
}
int
ahci_no_match(struct pci_attach_args *pa)
{
return (0);
}
int
ahci_vt8251_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
sc->sc_flags |= AHCI_F_NO_NCQ;
return (0);
}
void
ahci_ati_sb_idetoahci(struct ahci_softc *sc, struct pci_attach_args *pa)
{
pcireg_t magic;
if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) {
magic = pci_conf_read(pa->pa_pc, pa->pa_tag,
AHCI_PCI_ATI_SB600_MAGIC);
pci_conf_write(pa->pa_pc, pa->pa_tag,
AHCI_PCI_ATI_SB600_MAGIC,
magic | AHCI_PCI_ATI_SB600_LOCKED);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG,
PCI_CLASS_MASS_STORAGE << PCI_CLASS_SHIFT |
PCI_SUBCLASS_MASS_STORAGE_SATA << PCI_SUBCLASS_SHIFT |
AHCI_PCI_INTERFACE << PCI_INTERFACE_SHIFT |
PCI_REVISION(pa->pa_class) << PCI_REVISION_SHIFT);
pci_conf_write(pa->pa_pc, pa->pa_tag,
AHCI_PCI_ATI_SB600_MAGIC, magic);
}
}
int
ahci_ati_sb600_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
ahci_ati_sb_idetoahci(sc, pa);
sc->sc_flags |= AHCI_F_IPMS_PROBE;
return (0);
}
int
ahci_ati_sb700_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
ahci_ati_sb_idetoahci(sc, pa);
sc->sc_flags |= AHCI_F_IPMS_PROBE;
return (0);
}
int
ahci_amd_hudson2_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
ahci_ati_sb_idetoahci(sc, pa);
sc->sc_flags |= AHCI_F_IPMS_PROBE;
return (0);
}
int
ahci_intel_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
sc->sc_flags |= AHCI_F_NO_PMP;
return (0);
}
int
ahci_samsung_attach(struct ahci_softc *sc, struct pci_attach_args *pa)
{
/*
* Disable MSI with the Samsung S4LN053X01 SSD controller as found
* in some Apple MacBook Air models such as the 6,1 and 6,2, as well
* as the XP941 SSD controller.
* https://bugzilla.kernel.org/show_bug.cgi?id=60731
* https://bugzilla.kernel.org/show_bug.cgi?id=89171
*/
sc->sc_flags |= AHCI_F_NO_MSI;
return (0);
}
int
ahci_pci_match(struct device *parent, void *match, void *aux)
{
struct pci_attach_args *pa = aux;
const struct ahci_device *ad;
ad = ahci_lookup_device(pa);
if (ad != NULL) {
/* the device may need special checks to see if it matches */
if (ad->ad_match != NULL)
return (ad->ad_match(pa));
return (2); /* match higher than pciide */
}
if (PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE &&
PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_SATA &&
PCI_INTERFACE(pa->pa_class) == AHCI_PCI_INTERFACE)
return (2);
return (0);
}
void
ahci_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct ahci_pci_softc *psc = (struct ahci_pci_softc *)self;
struct ahci_softc *sc = &psc->psc_ahci;
struct pci_attach_args *pa = aux;
const struct ahci_device *ad;
pci_intr_handle_t ih;
psc->psc_pc = pa->pa_pc;
psc->psc_tag = pa->pa_tag;
sc->sc_dmat = pa->pa_dmat;
ad = ahci_lookup_device(pa);
if (ad != NULL && ad->ad_attach != NULL) {
if (ad->ad_attach(sc, pa) != 0) {
/* error should be printed by ad_attach */
return;
}
}
if (sc->sc_flags & AHCI_F_NO_MSI)
pa->pa_flags &= ~PCI_FLAGS_MSI_ENABLED;
if (pci_intr_map_msi(pa, &ih) != 0 && pci_intr_map(pa, &ih) != 0) {
printf(": unable to map interrupt\n");
return;
}
printf(": %s,", pci_intr_string(pa->pa_pc, ih));
if (ahci_map_regs(psc, pa) != 0) {
/* error already printed by ahci_map_regs */
return;
}
if (ahci_map_intr(psc, pa, ih) != 0) {
/* error already printed by ahci_map_intr */
goto unmap;
}
if (ahci_attach(sc) != 0) {
/* error printed by ahci_attach */
goto unmap;
}
return;
unmap:
ahci_unmap_regs(psc);
return;
}
int
ahci_pci_detach(struct device *self, int flags)
{
struct ahci_pci_softc *psc = (struct ahci_pci_softc *)self;
struct ahci_softc *sc = &psc->psc_ahci;
ahci_detach(sc, flags);
ahci_unmap_intr(psc);
ahci_unmap_regs(psc);
return (0);
}
int
ahci_map_regs(struct ahci_pci_softc *psc, struct pci_attach_args *pa)
{
pcireg_t maptype;
struct ahci_softc *sc = &psc->psc_ahci;
maptype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AHCI_PCI_BAR);
if (pci_mapreg_map(pa, AHCI_PCI_BAR, maptype, 0, &sc->sc_iot,
&sc->sc_ioh, NULL, &sc->sc_ios, 0) != 0) {
printf(" unable to map registers\n");
return (1);
}
return (0);
}
void
ahci_unmap_regs(struct ahci_pci_softc *psc)
{
struct ahci_softc *sc = &psc->psc_ahci;
bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
sc->sc_ios = 0;
}
int
ahci_map_intr(struct ahci_pci_softc *psc, struct pci_attach_args *pa,
pci_intr_handle_t ih)
{
struct ahci_softc *sc = &psc->psc_ahci;
sc->sc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO,
ahci_intr, sc, DEVNAME(sc));
if (sc->sc_ih == NULL) {
printf("%s: unable to map interrupt\n", DEVNAME(sc));
return (1);
}
return (0);
}
void
ahci_unmap_intr(struct ahci_pci_softc *psc)
{
struct ahci_softc *sc = &psc->psc_ahci;
pci_intr_disestablish(psc->psc_pc, sc->sc_ih);
}
int
ahci_pci_activate(struct device *self, int act)
{
struct ahci_pci_softc *psc = (struct ahci_pci_softc *)self;
struct ahci_softc *sc = &psc->psc_ahci;
return ahci_activate((struct device *)sc, act);
}
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