C++ rman_get_size函数代码示例

static int
unin_chip_activate_resource(device_t bus, device_t child, int type, int rid,
			    struct resource *res)
{
	void    *p;

	if (type == SYS_RES_IRQ)
                return (bus_activate_resource(bus, type, rid, res));

	if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
		vm_offset_t start;

		start = (vm_offset_t) rman_get_start(res);

		if (bootverbose)
			printf("unin mapdev: start %zx, len %ld\n", start,
			       rman_get_size(res));

		p = pmap_mapdev(start, (vm_size_t) rman_get_size(res));
		if (p == NULL)
			return (ENOMEM);
		rman_set_virtual(res, p);
		rman_set_bustag(res, &bs_be_tag);
		rman_set_bushandle(res, (u_long)p);
	}

	return (rman_activate_resource(res));
}

static int
ofw_pci_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *res)
{
	struct ofw_pci_softc *sc;
	void	*p;

	sc = device_get_softc(bus);

	if (type == SYS_RES_IRQ) {
		return (bus_activate_resource(bus, type, rid, res));
	}
	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		struct ofw_pci_range *rp;
		vm_paddr_t start;
		int space;

		start = (vm_paddr_t)rman_get_start(res);

		/*
		 * Map this through the ranges list
		 */
		for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange &&
		       rp->pci_hi != 0; rp++) {
			if (start < rp->pci || start >= rp->pci + rp->size)
				continue;

			switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) {
			case OFW_PCI_PHYS_HI_SPACE_IO:
				space = SYS_RES_IOPORT;
				break;
			case OFW_PCI_PHYS_HI_SPACE_MEM32:
			case OFW_PCI_PHYS_HI_SPACE_MEM64:
				space = SYS_RES_MEMORY;
				break;
			default:
				space = -1;
			}

			if (type == space) {
				start += (rp->host - rp->pci);
				break;
			}
		}

		if (bootverbose)
			printf("ofw_pci mapdev: start %jx, len %jd\n",
			    (rman_res_t)start, rman_get_size(res));

		p = pmap_mapdev(start, (vm_size_t)rman_get_size(res));
		if (p == NULL)
			return (ENOMEM);

		rman_set_virtual(res, p);
		rman_set_bustag(res, &bs_le_tag);
		rman_set_bushandle(res, (u_long)p);
	}

	return (rman_activate_resource(res));
}

static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
{
	int len = vma->vm_end - vma->vm_start;
	u32 key = vma->vm_pgoff << PAGE_SHIFT;
	struct c4iw_rdev *rdev;
	int ret = 0;
	struct c4iw_mm_entry *mm;
	struct c4iw_ucontext *ucontext;
	u64 addr, paddr;

	u64 va_regs_res = 0, va_udbs_res = 0;
	u64 len_regs_res = 0, len_udbs_res = 0;

	CTR3(KTR_IW_CXGBE, "%s:1 ctx %p vma %p", __func__, context, vma);

	CTR4(KTR_IW_CXGBE, "%s:1a pgoff 0x%lx key 0x%x len %d", __func__,
	    vma->vm_pgoff, key, len);

	if (vma->vm_start & (PAGE_SIZE-1)) {
		CTR3(KTR_IW_CXGBE, "%s:2 unaligned vm_start %u vma %p",
		    __func__, vma->vm_start, vma);
		return -EINVAL;
	}

	rdev = &(to_c4iw_dev(context->device)->rdev);
	ucontext = to_c4iw_ucontext(context);

	mm = remove_mmap(ucontext, key, len);
	if (!mm) {
		CTR4(KTR_IW_CXGBE, "%s:3 ucontext %p key %u len %u", __func__,
		    ucontext, key, len);
		return -EINVAL;
	}
	addr = mm->addr;
	kfree(mm);

	va_regs_res = (u64)rman_get_virtual(rdev->adap->regs_res);
	len_regs_res = (u64)rman_get_size(rdev->adap->regs_res);
	va_udbs_res = (u64)rman_get_virtual(rdev->adap->udbs_res);
	len_udbs_res = (u64)rman_get_size(rdev->adap->udbs_res);

	CTR6(KTR_IW_CXGBE,
	    "%s:4 addr %p, masync region %p:%p, udb region %p:%p", __func__,
	    addr, va_regs_res, va_regs_res+len_regs_res, va_udbs_res,
	    va_udbs_res+len_udbs_res);

	if (addr >= va_regs_res && addr < va_regs_res + len_regs_res) {
		CTR4(KTR_IW_CXGBE, "%s:5 MA_SYNC addr %p region %p, reglen %u",
		    __func__, addr, va_regs_res, len_regs_res);
		/*
		 * MA_SYNC register...
		 */
		paddr = vtophys(addr);
		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
		ret = io_remap_pfn_range(vma, vma->vm_start,
				paddr >> PAGE_SHIFT,
				len, vma->vm_page_prot);
	} else {

int
ndis_alloc_amem(void *arg)
{
	struct ndis_softc	*sc;
	int			error, rid;

	if (arg == NULL)
		return(EINVAL);

	sc = arg;
	rid = NDIS_AM_RID;
#if defined(__DragonFly__)
	sc->ndis_res_am = bus_alloc_resource(sc->ndis_dev, SYS_RES_MEMORY,
	    &rid, 0UL, ~0UL, 0x1000, RF_ACTIVE);
#else
	sc->ndis_res_am = bus_alloc_resource_anywhere(sc->ndis_dev,
	    SYS_RES_MEMORY, &rid, 0x1000, RF_ACTIVE);
#endif

	if (sc->ndis_res_am == NULL) {
		device_printf(sc->ndis_dev,
		    "failed to allocate attribute memory\n");
		return(ENXIO);
	}
	sc->ndis_rescnt++;
#if defined(__DragonFly__)
	resource_list_add(&sc->ndis_rl, SYS_RES_MEMORY, rid,
	    rman_get_start(sc->ndis_res_am), rman_get_end(sc->ndis_res_am),
	    rman_get_size(sc->ndis_res_am), -1);
#else
	resource_list_add(&sc->ndis_rl, SYS_RES_MEMORY, rid,
	    rman_get_start(sc->ndis_res_am), rman_get_end(sc->ndis_res_am),
	    rman_get_size(sc->ndis_res_am));
#endif

	error = CARD_SET_MEMORY_OFFSET(device_get_parent(sc->ndis_dev),
	    sc->ndis_dev, rid, 0, NULL);

	if (error) {
		device_printf(sc->ndis_dev,
		    "CARD_SET_MEMORY_OFFSET() returned 0x%x\n", error);
		return(error);
	}

	error = CARD_SET_RES_FLAGS(device_get_parent(sc->ndis_dev),
	    sc->ndis_dev, SYS_RES_MEMORY, rid, PCCARD_A_MEM_ATTR);

	if (error) {
		device_printf(sc->ndis_dev,
		    "CARD_SET_RES_FLAGS() returned 0x%x\n", error);
		return(error);
	}

	sc->ndis_am_rid = rid;

	return(0);
}

static int
nexus_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *r)
{
	void *vaddr;
	vm_paddr_t paddr;
	vm_size_t psize;
	int err;

	/*
	 * If this is a memory resource, use pmap_mapdev to map it.
	 */
	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		paddr = rman_get_start(r);
		psize = rman_get_size(r);
		rman_set_bustag(r, mips_bus_space_generic);
		err = bus_space_map(rman_get_bustag(r), paddr, psize, 0,
		    (bus_space_handle_t *)&vaddr);
		if (err != 0) {
			rman_deactivate_resource(r);
			return (err);
		}
		rman_set_virtual(r, vaddr);
		rman_set_bushandle(r, (bus_space_handle_t)(uintptr_t)vaddr);
	} else if (type == SYS_RES_IRQ) {
#ifdef INTRNG
		intr_activate_irq(child, r);
#endif
	}

	return (rman_activate_resource(r));
}

static int
nexus_deactivate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *r)
{
	bus_size_t psize;
	bus_space_handle_t vaddr;

	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		psize = (bus_size_t)rman_get_size(r);
		vaddr = rman_get_bushandle(r);

		if (vaddr != 0) {
#ifdef FDT
			bus_space_unmap(fdtbus_bs_tag, vaddr, psize);
#else
			pmap_unmapdev((vm_offset_t)vaddr, (vm_size_t)psize);
#endif
			rman_set_virtual(r, NULL);
			rman_set_bushandle(r, 0);
		}
	} else if (type == SYS_RES_IRQ) {
#ifdef INTRNG
		intr_deactivate_irq(child, r);
#endif
	}

	return (rman_deactivate_resource(r));
}

static int
wiibus_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *res)
{
	void *p;

	switch (type) {
	case SYS_RES_MEMORY:
		p = pmap_mapdev(rman_get_start(res), rman_get_size(res));
		if (p == NULL)
			return (ENOMEM);
		rman_set_virtual(res, p);
		rman_set_bustag(res, &bs_be_tag);
		rman_set_bushandle(res, (unsigned long)p);
		break;
	case SYS_RES_IRQ:
		return (bus_activate_resource(bus, type, rid, res));
	default:
		device_printf(bus,
		    "unknown activate resource request from %s\n",
		    device_get_nameunit(child));
		return (ENXIO);
	}
	
	return (rman_activate_resource(res));
}

static int
nexus_activate_resource(device_t bus, device_t child, int type, int rid,
			struct resource *r)
{
	vm_paddr_t paddr, psize;
	void *vaddr;

	/*
	 * If this is a memory resource, map it into the kernel.
	 */
	switch (type) {
	case SYS_RES_IOPORT:
		rman_set_bustag(r, IA64_BUS_SPACE_IO);
		rman_set_bushandle(r, rman_get_start(r));
		break;
	case SYS_RES_MEMORY:
		paddr = rman_get_start(r);
		psize = rman_get_size(r);
		vaddr = pmap_mapdev(paddr, psize);
		rman_set_virtual(r, vaddr);
		rman_set_bustag(r, IA64_BUS_SPACE_MEM);
		rman_set_bushandle(r, (bus_space_handle_t) paddr);
		break;
	}
	return (rman_activate_resource(r));
}

static int
nexus_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *r)
{
	int err;
	bus_addr_t paddr;
	bus_size_t psize;
	bus_space_handle_t vaddr;

	if ((err = rman_activate_resource(r)) != 0)
		return (err);

	/*
	 * If this is a memory resource, map it into the kernel.
	 */
	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		paddr = (bus_addr_t)rman_get_start(r);
		psize = (bus_size_t)rman_get_size(r);
		err = bus_space_map(&memmap_bus, paddr, psize, 0, &vaddr);
		if (err != 0) {
			rman_deactivate_resource(r);
			return (err);
		}
		rman_set_bustag(r, &memmap_bus);
		rman_set_virtual(r, (void *)vaddr);
		rman_set_bushandle(r, vaddr);
	} else if (type == SYS_RES_IRQ) {
		intr_activate_irq(child, r);
	}
	return (0);
}

static int
ata_pccard_attach(device_t dev)
{
    struct ata_channel *ch = device_get_softc(dev);
    struct resource *io, *ctlio;
    int i, rid, err;
    uint16_t funce;

    if (ch->attached)
        return (0);
    ch->attached = 1;

    /* allocate the io range to get start and length */
    rid = ATA_IOADDR_RID;
    if (!(io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
                                  ATA_IOSIZE, RF_ACTIVE)))
        return (ENXIO);

    /* setup the resource vectors */
    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
        ch->r_io[i].res = io;
        ch->r_io[i].offset = i;
    }
    ch->r_io[ATA_IDX_ADDR].res = io;

    /*
     * if we got more than the default ATA_IOSIZE ports, this is a device
     * where ctlio is located at offset 14 into "normal" io space.
     */
    if (rman_get_size(io) > ATA_IOSIZE) {
        ch->r_io[ATA_CONTROL].res = io;
        ch->r_io[ATA_CONTROL].offset = 14;
    }
    else {
        rid = ATA_CTLADDR_RID;
        if (!(ctlio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
                                         ATA_CTLIOSIZE, RF_ACTIVE))) {
            bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
            for (i = ATA_DATA; i < ATA_MAX_RES; i++)
                ch->r_io[i].res = NULL;
            return (ENXIO);
        }
        ch->r_io[ATA_CONTROL].res = ctlio;
        ch->r_io[ATA_CONTROL].offset = 0;
    }
    ata_default_registers(dev);

    /* initialize softc for this channel */
    ch->unit = 0;
    ch->flags |= ATA_USE_16BIT;
    funce = 0;		/* Default to sane setting of FUNCE */
    pccard_get_funce_disk(dev, &funce);
    if (!(funce & PFD_I_D))
        ch-> flags |= ATA_NO_SLAVE;
    ata_generic_hw(dev);
    err = ata_probe(dev);
    if (err)
        return (err);
    return (ata_attach(dev));
}

/*
 * All I/O to/from the altpll register device must be 32-bit, and aligned
 * to 32-bit.
 */
static int
altpll_reg_read(struct cdev *dev, struct uio *uio, int flag)
{
	struct altpll_softc *sc;
	u_long offset, size;
	uint32_t v;
	int error;

	if (uio->uio_offset < 0 || uio->uio_offset % 4 != 0 ||
	    uio->uio_resid % 4 != 0)
		return (ENODEV);
	sc = dev->si_drv1;
	size = rman_get_size(sc->ap_reg_res);
	error = 0;
	if ((uio->uio_offset + uio->uio_resid < 0) ||
	    (uio->uio_offset + uio->uio_resid > size))
		return (ENODEV);
	while (uio->uio_resid > 0) {
		offset = uio->uio_offset;
		if (offset + sizeof(v) > size)
			return (ENODEV);
		v = bus_read_4(sc->ap_reg_res, offset);
		error = uiomove(&v, sizeof(v), uio);
		if (error)
			return (error);
	}
	return (error);
}

static int
nexus_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *r)
{
	/*
	 * If this is a memory resource, map it into the kernel.
	 */
	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		caddr_t vaddr = 0;
		u_int32_t paddr;
		u_int32_t psize;
		u_int32_t poffs;

		paddr = rman_get_start(r);
		psize = rman_get_size(r);
		poffs = paddr - trunc_page(paddr);
		vaddr = (caddr_t) pmap_mapdev(paddr-poffs, psize+poffs) + poffs;
		rman_set_virtual(r, vaddr);
#ifdef FDT
		rman_set_bustag(r, fdtbus_bs_tag);
#else
		rman_set_bustag(r, (void *)1);
#endif
		rman_set_bushandle(r, (bus_space_handle_t) vaddr);
	}
	return (rman_activate_resource(r));
}

static int
ebus_activate_resource(device_t bus, device_t child, int type, int rid,
    struct resource *res)
{
	struct ebus_softc *sc;
	struct ebus_rinfo *eri;
	bus_space_tag_t bt;
	bus_space_handle_t bh;
	int i, rv;

	sc = device_get_softc(bus);
	if ((sc->sc_flags & EBUS_PCI) != 0 && type == SYS_RES_MEMORY) {
		for (i = 0; i < sc->sc_nrange; i++) {
			eri = &sc->sc_rinfo[i];
			if (rman_is_region_manager(res, &eri->eri_rman) != 0) {
				bt = rman_get_bustag(eri->eri_res);
				rv = bus_space_subregion(bt,
				    rman_get_bushandle(eri->eri_res),
				    rman_get_start(res) -
				    rman_get_start(eri->eri_res),
				    rman_get_size(res), &bh);
				if (rv != 0)
					return (rv);
				rman_set_bustag(res, bt);
				rman_set_bushandle(res, bh);
				return (rman_activate_resource(res));
			}
		}
		return (EINVAL);
	}
	return (bus_generic_activate_resource(bus, child, type, rid, res));
}

static int
thunder_pem_activate_resource(device_t dev, device_t child, int type, int rid,
    struct resource *r)
{
	int err;
	bus_addr_t paddr;
	bus_size_t psize;
	bus_space_handle_t vaddr;
	struct thunder_pem_softc *sc;

	if ((err = rman_activate_resource(r)) != 0)
		return (err);

	sc = device_get_softc(dev);

	/*
	 * If this is a memory resource, map it into the kernel.
	 */
	if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
		paddr = (bus_addr_t)rman_get_start(r);
		psize = (bus_size_t)rman_get_size(r);

		paddr = range_addr_pci_to_phys(sc->ranges, paddr);

		err = bus_space_map(&memmap_bus, paddr, psize, 0, &vaddr);
		if (err != 0) {
			rman_deactivate_resource(r);
			return (err);
		}
		rman_set_bustag(r, &memmap_bus);
		rman_set_virtual(r, (void *)vaddr);
		rman_set_bushandle(r, vaddr);
	}
	return (0);
}

static int
terasic_mtl_reg_write(struct cdev *dev, struct uio *uio, int flag)
{
	struct terasic_mtl_softc *sc;
	u_long offset, size;
	uint32_t v;
	int error;

	if (uio->uio_offset < 0 || uio->uio_offset % 4 != 0 ||
	    uio->uio_resid % 4 != 0)
		return (ENODEV);
	sc = dev->si_drv1;
	size = rman_get_size(sc->mtl_reg_res);
	error = 0;
	while (uio->uio_resid > 0) {
		offset = uio->uio_offset;
		if (offset + sizeof(v) > size)
			return (ENODEV);
		error = uiomove(&v, sizeof(v), uio);
		if (error)
			return (error);
		bus_write_4(sc->mtl_reg_res, offset, v);
	}
	return (error);
}