/*
* VM to hypervisor call mechanism. We use the standard VMware naming
* convention since shared code is calling this function as well.
*/
int vmci_send_datagram(struct vmci_datagram *dg)
{
unsigned long flags;
int result;
/* Check args. */
if (dg == NULL)
return VMCI_ERROR_INVALID_ARGS;
/*
* Need to acquire spinlock on the device because the datagram
* data may be spread over multiple pages and the monitor may
* interleave device user rpc calls from multiple
* VCPUs. Acquiring the spinlock precludes that
* possibility. Disabling interrupts to avoid incoming
* datagrams during a "rep out" and possibly landing up in
* this function.
*/
spin_lock_irqsave(&vmci_dev_spinlock, flags);
if (vmci_dev_g) {
iowrite8_rep(vmci_dev_g->iobase + VMCI_DATA_OUT_ADDR,
dg, VMCI_DG_SIZE(dg));
result = ioread32(vmci_dev_g->iobase + VMCI_RESULT_LOW_ADDR);
} else {
result = VMCI_ERROR_UNAVAILABLE;
}
spin_unlock_irqrestore(&vmci_dev_spinlock, flags);
return result;
}
static void oxnas_nand_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
{
struct nand_chip *chip = mtd_to_nand(mtd);
struct oxnas_nand_ctrl *oxnas = nand_get_controller_data(chip);
iowrite8_rep(oxnas->io_base, buf, len);
}
void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer,
size_t count, u16 offset, u8 reg_width)
{
void __iomem *addr = core->bus->mmio + offset;
if (core->bus->mapped_core != core)
bcma_host_pci_switch_core(core);
switch (reg_width) {
case sizeof(u8):
iowrite8_rep(addr, buffer, count);
break;
case sizeof(u16):
WARN_ON(count & 1);
iowrite16_rep(addr, buffer, count >> 1);
break;
case sizeof(u32):
WARN_ON(count & 3);
iowrite32_rep(addr, buffer, count >> 2);
break;
default:
WARN_ON(1);
}
}
static void dm9000_outblk_8bit(void __iomem *reg, void *data, int count)
{
iowrite8_rep(reg, data, count);
}
void outsb(unsigned long port, const void *src, unsigned long count)
{
iowrite8_rep(ioport_map(port, 1), src, count);
}