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MFp4: o save/restore subvendor, subdevice, vendor, device, baseclass,

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subclass, progif and revid.  While these are typically read
	only fields, they aren't always read-only.  progif is writable
	for ata devices, for example.  It does no harm when they are
	read only, and helps when they aren't.
This commit is contained in:
Warner Losh 2004-05-21 06:36:36 +00:00
parent 2a6c850c09
commit e5af1ba884
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=129533
1 changed files with 16 additions and 0 deletions
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16
sys/dev/pci/pci.c
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@ -1830,6 +1830,10 @@ pci_cfg_restore(device_t dev, struct pci_devinfo *dinfo)
for (i = 0; i < dinfo->cfg.nummaps; i++)
pci_write_config(dev, PCIR_MAPS + i * 4, dinfo->cfg.bar[i], 4);
pci_write_config(dev, PCIR_BIOS, dinfo->cfg.bios, 4);
pci_write_config(dev, PCIR_SUBVEND_0, dinfo->cfg.subdevice, 2);
pci_write_config(dev, PCIR_SUBDEV_0, dinfo->cfg.subdevice, 2);
pci_write_config(dev, PCIR_VENDOR, dinfo->cfg.vendor, 2);
pci_write_config(dev, PCIR_DEVICE, dinfo->cfg.device, 2);
pci_write_config(dev, PCIR_COMMAND, dinfo->cfg.cmdreg, 2);
pci_write_config(dev, PCIR_INTLINE, dinfo->cfg.intline, 1);
pci_write_config(dev, PCIR_INTPIN, dinfo->cfg.intpin, 1);
@ -1837,6 +1841,10 @@ pci_cfg_restore(device_t dev, struct pci_devinfo *dinfo)
pci_write_config(dev, PCIR_MAXLAT, dinfo->cfg.maxlat, 1);
pci_write_config(dev, PCIR_CACHELNSZ, dinfo->cfg.cachelnsz, 1);
pci_write_config(dev, PCIR_LATTIMER, dinfo->cfg.lattimer, 1);
pci_write_config(dev, PCIR_CLASS, dinfo->cfg.baseclass, 1);
pci_write_config(dev, PCIR_SUBCLASS, dinfo->cfg.subclass, 1);
pci_write_config(dev, PCIR_PROGIF, dinfo->cfg.progif, 1);
pci_write_config(dev, PCIR_REVID, dinfo->cfg.revid, 1);
}
static void
@ -1869,6 +1877,10 @@ pci_cfg_save(device_t dev, struct pci_devinfo *dinfo, int setstate)
* the PCI capability structures we know about, but apart from power
* we don't know any that are writable.
*/
dinfo->cfg.subvendor = pci_read_config(dev, PCIR_SUBVEND_0, 2);
dinfo->cfg.subdevice = pci_read_config(dev, PCIR_SUBDEV_0, 2);
dinfo->cfg.vendor = pci_read_config(dev, PCIR_VENDOR, 2);
dinfo->cfg.device = pci_read_config(dev, PCIR_DEVICE, 2);
dinfo->cfg.cmdreg = pci_read_config(dev, PCIR_COMMAND, 2);
dinfo->cfg.intline = pci_read_config(dev, PCIR_INTLINE, 1);
dinfo->cfg.intpin = pci_read_config(dev, PCIR_INTPIN, 1);
@ -1876,6 +1888,10 @@ pci_cfg_save(device_t dev, struct pci_devinfo *dinfo, int setstate)
dinfo->cfg.maxlat = pci_read_config(dev, PCIR_MAXLAT, 1);
dinfo->cfg.cachelnsz = pci_read_config(dev, PCIR_CACHELNSZ, 1);
dinfo->cfg.lattimer = pci_read_config(dev, PCIR_LATTIMER, 1);
dinfo->cfg.baseclass = pci_read_config(dev, PCIR_CLASS, 1);
dinfo->cfg.subclass = pci_read_config(dev, PCIR_SUBCLASS, 1);
dinfo->cfg.progif = pci_read_config(dev, PCIR_PROGIF, 1);
dinfo->cfg.revid = pci_read_config(dev, PCIR_REVID, 1);
/*
* don't set the state for display devices and for memory devices