Attachment #248494 for bug #272507




}

/*
 * Reserve declared resources for active devices found during the
 * namespace scan once the boot-time attach of devices has completed.
 *
 * Ideally reserving firmware-assigned resources would work in a
 * depth-first traversal of the device namespace, but this is
 * complicated.  In particular, not all resources are enumerated by
 * ACPI (e.g. PCI bridges and devices enumerate their resources via
 * other means).  Some systems also enumerate devices via ACPI behind
 * PCI bridges but without a matching a PCI device_t enumerated via
 * PCI bus scanning, the device_t's end up as direct children of
 * acpi0.  Doing this scan late is not ideal, but works for now.
 */
static void
acpi_reserve_resources(device_t dev)

    /* Pre-allocate resources for our rman from any sysresource devices. */
    acpi_sysres_alloc(bus);

    /* Reserve resources already allocated to children. */
    acpi_reserve_resources(bus);

    /* Create any static children by calling device identify methods. */
    ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n"));
    bus_generic_probe(bus);

    ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n"));
    bus_generic_attach(bus);

    /*
     * Reserve resources allocated to children but not yet allocated
     * by a driver.
     */
    acpi_reserve_resources(bus);

    /* Attach wake sysctls. */
    acpi_wake_sysctl_walk(bus);

- 

Return to bug 272507

Lines 1369-1376 acpi_sysres_alloc(device_t dev) Link Here

(-)b/sys/dev/acpica/acpi.c (-6 / +17 lines)
1369	}	1369	}
1370		1370
1371	/*	1371	/*
1372	* Reserve declared resources for devices found during attach once system	1372	* Reserve declared resources for active devices found during the
1373	* resources have been allocated.	1373	* namespace scan once the boot-time attach of devices has completed.
		1374	*
		1375	* Ideally reserving firmware-assigned resources would work in a
		1376	* depth-first traversal of the device namespace, but this is
		1377	* complicated. In particular, not all resources are enumerated by
		1378	* ACPI (e.g. PCI bridges and devices enumerate their resources via
		1379	* other means). Some systems also enumerate devices via ACPI behind
		1380	* PCI bridges but without a matching a PCI device_t enumerated via
		1381	* PCI bus scanning, the device_t's end up as direct children of
		1382	* acpi0. Doing this scan late is not ideal, but works for now.
1374	*/	1383	*/
1375	static void	1384	static void
1376	acpi_reserve_resources(device_t dev)	1385	acpi_reserve_resources(device_t dev)
Lines 2257-2265 acpi_probe_children(device_t bus) Link Here
2257	/* Pre-allocate resources for our rman from any sysresource devices. */	2266	/* Pre-allocate resources for our rman from any sysresource devices. */
2258	acpi_sysres_alloc(bus);	2267	acpi_sysres_alloc(bus);
2259		2268
2260	/* Reserve resources already allocated to children. */
2261	acpi_reserve_resources(bus);
2262
2263	/* Create any static children by calling device identify methods. */	2269	/* Create any static children by calling device identify methods. */
2264	ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n"));	2270	ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n"));
2265	bus_generic_probe(bus);	2271	bus_generic_probe(bus);
Lines 2268-2273 acpi_probe_children(device_t bus) Link Here
2268	ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n"));	2274	ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n"));
2269	bus_generic_attach(bus);	2275	bus_generic_attach(bus);
2270		2276
		2277	/*
		2278	* Reserve resources allocated to children but not yet allocated
		2279	* by a driver.
		2280	*/
		2281	acpi_reserve_resources(bus);
		2282
2271	/* Attach wake sysctls. */	2283	/* Attach wake sysctls. */
2272	acpi_wake_sysctl_walk(bus);	2284	acpi_wake_sysctl_walk(bus);
2273		2285
2274	-