/* * Zorro Bus Services * * Copyright (C) 1995-2003 Geert Uytterhoeven * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "zorro.h" /* * Zorro Expansion Devices */ unsigned int zorro_num_autocon; struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata; struct zorro_dev *zorro_autocon; /* * Zorro bus */ struct zorro_bus { struct device dev; struct zorro_dev devices[0]; }; /* * Find Zorro Devices */ struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from) { struct zorro_dev *z; if (!zorro_num_autocon) return NULL; for (z = from ? from+1 : &zorro_autocon[0]; z < zorro_autocon+zorro_num_autocon; z++) if (id == ZORRO_WILDCARD || id == z->id) return z; return NULL; } EXPORT_SYMBOL(zorro_find_device); /* * Bitmask indicating portions of available Zorro II RAM that are unused * by the system. Every bit represents a 64K chunk, for a maximum of 8MB * (128 chunks, physical 0x00200000-0x009fffff). * * If you want to use (= allocate) portions of this RAM, you should clear * the corresponding bits. * * Possible uses: * - z2ram device * - SCSI DMA bounce buffers * * FIXME: use the normal resource management */ DECLARE_BITMAP(zorro_unused_z2ram, 128); EXPORT_SYMBOL(zorro_unused_z2ram); static void __init mark_region(unsigned long start, unsigned long end, int flag) { if (flag) start += Z2RAM_CHUNKMASK; else end += Z2RAM_CHUNKMASK; start &= ~Z2RAM_CHUNKMASK; end &= ~Z2RAM_CHUNKMASK; if (end <= Z2RAM_START || start >= Z2RAM_END) return; start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START; end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START; while (start < end) { u32 chunk = start>>Z2RAM_CHUNKSHIFT; if (flag) set_bit(chunk, zorro_unused_z2ram); else clear_bit(chunk, zorro_unused_z2ram); start += Z2RAM_CHUNKSIZE; } } static struct resource __init *zorro_find_parent_resource( struct platform_device *bridge, struct zorro_dev *z) { int i; for (i = 0; i < bridge->num_resources; i++) { struct resource *r = &bridge->resource[i]; if (zorro_resource_start(z) >= r->start && zorro_resource_end(z) <= r->end) return r; } return &iomem_resource; } static int __init amiga_zorro_probe(struct platform_device *pdev) { struct zorro_bus *bus; struct zorro_dev_init *zi; struct zorro_dev *z; struct resource *r; unsigned int i; int error; /* Initialize the Zorro bus */ bus = kzalloc(sizeof(*bus) + zorro_num_autocon * sizeof(bus->devices[0]), GFP_KERNEL); if (!bus) return -ENOMEM; zorro_autocon = bus->devices; bus->dev.parent = &pdev->dev; dev_set_name(&bus->dev, zorro_bus_type.name); error = device_register(&bus->dev); if (error) { pr_err("Zorro: Error registering zorro_bus\n"); put_device(&bus->dev); kfree(bus); return error; } platform_set_drvdata(pdev, bus); pr_info("Zorro: Probing AutoConfig expansion devices: %u device%s\n", zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); /* First identify all devices ... */ for (i = 0; i < zorro_num_autocon; i++) { zi = &zorro_autocon_init[i]; z = &zorro_autocon[i]; z->rom = zi->rom; z->id = (be16_to_cpu(z->rom.er_Manufacturer) << 16) | (z->rom.er_Product << 8); if (z->id == ZORRO_PROD_GVP_EPC_BASE) { /* GVP quirk */ unsigned long magic = zi->boardaddr + 0x8000; z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK; } z->slotaddr = zi->slotaddr; z->slotsize = zi->slotsize; sprintf(z->name, "Zorro device %08x", z->id); zorro_name_device(z); z->resource.start = zi->boardaddr; z->resource.end = zi->boardaddr + zi->boardsize - 1; z->resource.name = z->name; r = zorro_find_parent_resource(pdev, z); error = request_resource(r, &z->resource); if (error) dev_err(&bus->dev, "Address space collision on device %s %pR\n", z->name, &z->resource); z->dev.parent = &bus->dev; z->dev.bus = &zorro_bus_type; z->dev.id = i; } /* ... then register them */ for (i = 0; i < zorro_num_autocon; i++) { z = &zorro_autocon[i]; error = device_register(&z->dev); if (error) { dev_err(&bus->dev, "Error registering device %s\n", z->name); put_device(&z->dev); continue; } error = zorro_create_sysfs_dev_files(z); if (error) dev_err(&z->dev, "Error creating sysfs files\n"); } /* Mark all available Zorro II memory */ zorro_for_each_dev(z) { if (z->rom.er_Type & ERTF_MEMLIST) mark_region(zorro_resource_start(z), zorro_resource_end(z)+1, 1); } /* Unmark all used Zorro II memory */ for (i = 0; i < m68k_num_memory; i++) if (m68k_memory[i].addr < 16*1024*1024) mark_region(m68k_memory[i].addr, m68k_memory[i].addr+m68k_memory[i].size, 0); return 0; } static struct platform_driver amiga_zorro_driver = { .driver = { .name = "amiga-zorro", }, }; static int __init amiga_zorro_init(void) { return platform_driver_probe(&amiga_zorro_driver, amiga_zorro_probe); } module_init(amiga_zorro_init); MODULE_LICENSE("GPL"); /net/9p/client.h parent9b02c54bc951fca884ba5719f42a27e8240965bf (diff)
cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
The AVS GET_PMAP command does return a P-state along with the P-map information. However, that P-state is the initial P-state when the P-map was first downloaded to AVS. It is *not* the current P-state. Therefore, we explicitly retrieve the P-state using the GET_PSTATE command. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/net/9p/client.h')