Date: Sun, 5 Jan 2014 22:51:10 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r260350 - stable/10/sys/dev/acpica Message-ID: <201401052251.s05MpAk1016651@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: mav Date: Sun Jan 5 22:51:09 2014 New Revision: 260350 URL: http://svnweb.freebsd.org/changeset/base/260350 Log: MFC r258164: Handle case when ACPI reports HPET device, but does not provide memory resource for it. In such case take the address range from the HPET table. This fixes hpet(4) driver attach on Asrock C2750D4I board. Modified: stable/10/sys/dev/acpica/acpi_hpet.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/acpica/acpi_hpet.c ============================================================================== --- stable/10/sys/dev/acpica/acpi_hpet.c Sun Jan 5 22:50:32 2014 (r260349) +++ stable/10/sys/dev/acpica/acpi_hpet.c Sun Jan 5 22:51:09 2014 (r260350) @@ -293,7 +293,7 @@ hpet_find(ACPI_HANDLE handle, UINT32 lev return (AE_OK); if (ACPI_FAILURE(acpi_GetInteger(handle, "_UID", &uid)) || id == uid) - *((int *)status) = 1; + *status = acpi_get_device(handle); return (AE_OK); } @@ -321,7 +321,7 @@ hpet_identify(driver_t *driver, device_t ACPI_TABLE_HPET *hpet; ACPI_STATUS status; device_t child; - int i, found; + int i; /* Only one HPET device can be added. */ if (devclass_get_device(hpet_devclass, 0)) @@ -332,12 +332,18 @@ hpet_identify(driver_t *driver, device_t if (ACPI_FAILURE(status)) return; /* Search for HPET device with same ID. */ - found = 0; + child = NULL; AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - 100, hpet_find, NULL, (void *)(uintptr_t)hpet->Sequence, (void *)&found); + 100, hpet_find, NULL, (void *)(uintptr_t)hpet->Sequence, + (void *)&child); /* If found - let it be probed in normal way. */ - if (found) + if (child) { + if (bus_get_resource(child, SYS_RES_MEMORY, 0, + NULL, NULL) != 0) + bus_set_resource(child, SYS_RES_MEMORY, 0, + hpet->Address.Address, HPET_MEM_WIDTH); continue; + } /* If not - create it from table info. */ child = BUS_ADD_CHILD(parent, 2, "hpet", 0); if (child == NULL) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201401052251.s05MpAk1016651>