Author: mav
Date: Mon Aug 26 17:54:19 2019
New Revision: 351516
URL: https://svnweb.freebsd.org/changeset/base/351516
Log:
Announce PCI Segment Groups supported to PCI host _OSC.
According to ACPI 6.3 specification:
The OS sets this bit to 1 if it supports PCI Segment Groups as defined
by the _SEG object, and access to the configuration space of devices
in PCI Segment Groups as described by this specification. Otherwise,
the OS sets this bit to 0.
As far as I see we support both of those as PCI domains for quite a while.
MFC after: 2 months
Modified:
head/sys/dev/acpica/acpi_pcib_acpi.c
Modified: head/sys/dev/acpica/acpi_pcib_acpi.c
==============================================================================
--- head/sys/dev/acpica/acpi_pcib_acpi.c Mon Aug 26 17:34:07 2019
(r351515)
+++ head/sys/dev/acpica/acpi_pcib_acpi.c Mon Aug 26 17:54:19 2019
(r351516)
@@ -323,9 +323,9 @@ acpi_pcib_osc(struct acpi_hpcib_softc *sc, uint32_t os
if (osc_ctl != 0 && (sc->ap_osc_ctl & osc_ctl) == osc_ctl)
return (0);
- /* Support Field: Extended PCI Config Space, MSI */
+ /* Support Field: Extended PCI Config Space, PCI Segment Groups, MSI */
cap_set[PCI_OSC_SUPPORT] = PCIM_OSC_SUPPORT_EXT_PCI_CONF |
- PCIM_OSC_SUPPORT_MSI;
+ PCIM_OSC_SUPPORT_SEG_GROUP | PCIM_OSC_SUPPORT_MSI;
/* Control Field */
cap_set[PCI_OSC_CTL] = sc->ap_osc_ctl | osc_ctl;
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