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pcnet: convert to memory API

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Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Avi Kivity 2011-08-08 16:09:19 +03:00 committed by Anthony Liguori
parent 1ec4e1ddc9
commit bd8d6f7cad
3 changed files with 63 additions and 50 deletions
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31
hw/lance.c
View File

@ -55,8 +55,8 @@ static void parent_lance_reset(void *opaque, int irq, int level)
pcnet_h_reset(&d->state);
}
static void lance_mem_writew(void *opaque, target_phys_addr_t addr,
uint32_t val)
static void lance_mem_write(void *opaque, target_phys_addr_t addr,
uint64_t val, unsigned size)
{
SysBusPCNetState *d = opaque;
@ -64,7 +64,8 @@ static void lance_mem_writew(void *opaque, target_phys_addr_t addr,
pcnet_ioport_writew(&d->state, addr, val & 0xffff);
}
static uint32_t lance_mem_readw(void *opaque, target_phys_addr_t addr)
static uint64_t lance_mem_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
SysBusPCNetState *d = opaque;
uint32_t val;
@ -74,16 +75,14 @@ static uint32_t lance_mem_readw(void *opaque, target_phys_addr_t addr)
return val & 0xffff;
}
static CPUReadMemoryFunc * const lance_mem_read[3] = {
NULL,
lance_mem_readw,
NULL,
};
static CPUWriteMemoryFunc * const lance_mem_write[3] = {
NULL,
lance_mem_writew,
NULL,
static const MemoryRegionOps lance_mem_ops = {
.read = lance_mem_read,
.write = lance_mem_write,
.endianness = DEVICE_NATIVE_ENDIAN,
.valid = {
.min_access_size = 2,
.max_access_size = 2,
},
};
static void lance_cleanup(VLANClientState *nc)
@ -117,13 +116,11 @@ static int lance_init(SysBusDevice *dev)
SysBusPCNetState *d = FROM_SYSBUS(SysBusPCNetState, dev);
PCNetState *s = &d->state;
s->mmio_index =
cpu_register_io_memory(lance_mem_read, lance_mem_write, d,
DEVICE_NATIVE_ENDIAN);
memory_region_init_io(&s->mmio, &lance_mem_ops, s, "lance-mmio", 4);
qdev_init_gpio_in(&dev->qdev, parent_lance_reset, 1);
sysbus_init_mmio(dev, 4, s->mmio_index);
sysbus_init_mmio_region(dev, &s->mmio);
sysbus_init_irq(dev, &s->irq);

78
hw/pcnet-pci.c
View File

@ -46,6 +46,7 @@
typedef struct {
PCIDevice pci_dev;
PCNetState state;
MemoryRegion io_bar;
} PCIPCNetState;
static void pcnet_aprom_writeb(void *opaque, uint32_t addr, uint32_t val)
@ -69,25 +70,41 @@ static uint32_t pcnet_aprom_readb(void *opaque, uint32_t addr)
return val;
}
static void pcnet_ioport_map(PCIDevice *pci_dev, int region_num,
pcibus_t addr, pcibus_t size, int type)
static uint64_t pcnet_ioport_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
PCNetState *d = &DO_UPCAST(PCIPCNetState, pci_dev, pci_dev)->state;
PCNetState *d = opaque;
#ifdef PCNET_DEBUG_IO
printf("pcnet_ioport_map addr=0x%04"FMT_PCIBUS" size=0x%04"FMT_PCIBUS"\n",
addr, size);
#endif
register_ioport_write(addr, 16, 1, pcnet_aprom_writeb, d);
register_ioport_read(addr, 16, 1, pcnet_aprom_readb, d);
register_ioport_write(addr + 0x10, 0x10, 2, pcnet_ioport_writew, d);
register_ioport_read(addr + 0x10, 0x10, 2, pcnet_ioport_readw, d);
register_ioport_write(addr + 0x10, 0x10, 4, pcnet_ioport_writel, d);
register_ioport_read(addr + 0x10, 0x10, 4, pcnet_ioport_readl, d);
if (addr < 16 && size == 1) {
return pcnet_aprom_readb(d, addr);
} else if (addr >= 0x10 && addr < 0x20 && size == 2) {
return pcnet_ioport_readw(d, addr);
} else if (addr >= 0x10 && addr < 0x20 && size == 4) {
return pcnet_ioport_readl(d, addr);
}
return ((uint64_t)1 << (size * 8)) - 1;
}
static void pcnet_ioport_write(void *opaque, target_phys_addr_t addr,
uint64_t data, unsigned size)
{
PCNetState *d = opaque;
if (addr < 16 && size == 1) {
return pcnet_aprom_writeb(d, addr, data);
} else if (addr >= 0x10 && addr < 0x20 && size == 2) {
return pcnet_ioport_writew(d, addr, data);
} else if (addr >= 0x10 && addr < 0x20 && size == 4) {
return pcnet_ioport_writel(d, addr, data);
}
}
static const MemoryRegionOps pcnet_io_ops = {
.read = pcnet_ioport_read,
.write = pcnet_ioport_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void pcnet_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
PCNetState *d = opaque;
@ -202,16 +219,12 @@ static const VMStateDescription vmstate_pci_pcnet = {
/* PCI interface */
static CPUWriteMemoryFunc * const pcnet_mmio_write[] = {
&pcnet_mmio_writeb,
&pcnet_mmio_writew,
&pcnet_mmio_writel
};
static CPUReadMemoryFunc * const pcnet_mmio_read[] = {
&pcnet_mmio_readb,
&pcnet_mmio_readw,
&pcnet_mmio_readl
static const MemoryRegionOps pcnet_mmio_ops = {
.old_mmio = {
.read = { pcnet_mmio_readb, pcnet_mmio_readw, pcnet_mmio_readl },
.write = { pcnet_mmio_writeb, pcnet_mmio_writew, pcnet_mmio_writel },
},
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void pci_physical_memory_write(void *dma_opaque, target_phys_addr_t addr,
@ -237,7 +250,8 @@ static int pci_pcnet_uninit(PCIDevice *dev)
{
PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, dev);
cpu_unregister_io_memory(d->state.mmio_index);
memory_region_destroy(&d->state.mmio);
memory_region_destroy(&d->io_bar);
qemu_del_timer(d->state.poll_timer);
qemu_free_timer(d->state.poll_timer);
qemu_del_vlan_client(&d->state.nic->nc);
@ -276,14 +290,14 @@ static int pci_pcnet_init(PCIDevice *pci_dev)
pci_conf[PCI_MAX_LAT] = 0xff;
/* Handler for memory-mapped I/O */
s->mmio_index =
cpu_register_io_memory(pcnet_mmio_read, pcnet_mmio_write, &d->state,
DEVICE_NATIVE_ENDIAN);
memory_region_init_io(&d->state.mmio, &pcnet_mmio_ops, d, "pcnet-mmio",
PCNET_PNPMMIO_SIZE);
pci_register_bar(pci_dev, 0, PCNET_IOPORT_SIZE,
PCI_BASE_ADDRESS_SPACE_IO, pcnet_ioport_map);
memory_region_init_io(&d->io_bar, &pcnet_io_ops, d, "pcnet-io",
PCNET_IOPORT_SIZE);
pci_register_bar_region(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &d->io_bar);
pci_register_bar_simple(pci_dev, 1, PCNET_PNPMMIO_SIZE, 0, s->mmio_index);
pci_register_bar_region(pci_dev, 1, 0, &s->mmio);
s->irq = pci_dev->irq[0];
s->phys_mem_read = pci_physical_memory_read;

4
hw/pcnet.h
View File

@ -4,6 +4,7 @@
#define PCNET_LOOPTEST_CRC 1
#define PCNET_LOOPTEST_NOCRC 2
#include "memory.h"
typedef struct PCNetState_st PCNetState;
@ -17,7 +18,8 @@ struct PCNetState_st {
uint16_t csr[128];
uint16_t bcr[32];
uint64_t timer;
int mmio_index, xmit_pos;
MemoryRegion mmio;
int xmit_pos;
uint8_t buffer[4096];
int tx_busy;
qemu_irq irq;