diff options
| -rw-r--r-- | hw/lsi53c895a.c | 258 |
1 files changed, 56 insertions, 202 deletions
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c index e9904c49d9..0ab8c78137 100644 --- a/hw/lsi53c895a.c +++ b/hw/lsi53c895a.c @@ -185,9 +185,9 @@ typedef struct lsi_request { typedef struct { PCIDevice dev; - int mmio_io_addr; - int ram_io_addr; - uint32_t script_ram_base; + MemoryRegion mmio_io; + MemoryRegion ram_io; + MemoryRegion io_io; int carry; /* ??? Should this be an a visible register somewhere? */ int status; @@ -391,10 +391,9 @@ static inline uint32_t read_dword(LSIState *s, uint32_t addr) { uint32_t buf; - /* Optimize reading from SCRIPTS RAM. */ - if ((addr & 0xffffe000) == s->script_ram_base) { - return s->script_ram[(addr & 0x1fff) >> 2]; - } + /* XXX: an optimization here used to fast-path the read from scripts + * memory. But that bypasses any iommu. + */ cpu_physical_memory_read(addr, (uint8_t *)&buf, 4); return cpu_to_le32(buf); } @@ -1899,232 +1898,90 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val) #undef CASE_SET_REG32 } -static void lsi_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +static void lsi_mmio_write(void *opaque, target_phys_addr_t addr, + uint64_t val, unsigned size) { LSIState *s = opaque; lsi_reg_writeb(s, addr & 0xff, val); } -static void lsi_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val) -{ - LSIState *s = opaque; - - addr &= 0xff; - lsi_reg_writeb(s, addr, val & 0xff); - lsi_reg_writeb(s, addr + 1, (val >> 8) & 0xff); -} - -static void lsi_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val) -{ - LSIState *s = opaque; - - addr &= 0xff; - lsi_reg_writeb(s, addr, val & 0xff); - lsi_reg_writeb(s, addr + 1, (val >> 8) & 0xff); - lsi_reg_writeb(s, addr + 2, (val >> 16) & 0xff); - lsi_reg_writeb(s, addr + 3, (val >> 24) & 0xff); -} - -static uint32_t lsi_mmio_readb(void *opaque, target_phys_addr_t addr) +static uint64_t lsi_mmio_read(void *opaque, target_phys_addr_t addr, + unsigned size) { LSIState *s = opaque; return lsi_reg_readb(s, addr & 0xff); } -static uint32_t lsi_mmio_readw(void *opaque, target_phys_addr_t addr) -{ - LSIState *s = opaque; - uint32_t val; - - addr &= 0xff; - val = lsi_reg_readb(s, addr); - val |= lsi_reg_readb(s, addr + 1) << 8; - return val; -} - -static uint32_t lsi_mmio_readl(void *opaque, target_phys_addr_t addr) -{ - LSIState *s = opaque; - uint32_t val; - addr &= 0xff; - val = lsi_reg_readb(s, addr); - val |= lsi_reg_readb(s, addr + 1) << 8; - val |= lsi_reg_readb(s, addr + 2) << 16; - val |= lsi_reg_readb(s, addr + 3) << 24; - return val; -} - -static CPUReadMemoryFunc * const lsi_mmio_readfn[3] = { - lsi_mmio_readb, - lsi_mmio_readw, - lsi_mmio_readl, -}; - -static CPUWriteMemoryFunc * const lsi_mmio_writefn[3] = { - lsi_mmio_writeb, - lsi_mmio_writew, - lsi_mmio_writel, +static const MemoryRegionOps lsi_mmio_ops = { + .read = lsi_mmio_read, + .write = lsi_mmio_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, }; -static void lsi_ram_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +static void lsi_ram_write(void *opaque, target_phys_addr_t addr, + uint64_t val, unsigned size) { LSIState *s = opaque; uint32_t newval; + uint32_t mask; int shift; - addr &= 0x1fff; newval = s->script_ram[addr >> 2]; shift = (addr & 3) * 8; - newval &= ~(0xff << shift); + mask = ((uint64_t)1 << (size * 8)) - 1; + newval &= ~(mask << shift); newval |= val << shift; s->script_ram[addr >> 2] = newval; } -static void lsi_ram_writew(void *opaque, target_phys_addr_t addr, uint32_t val) -{ - LSIState *s = opaque; - uint32_t newval; - - addr &= 0x1fff; - newval = s->script_ram[addr >> 2]; - if (addr & 2) { - newval = (newval & 0xffff) | (val << 16); - } else { - newval = (newval & 0xffff0000) | val; - } - s->script_ram[addr >> 2] = newval; -} - - -static void lsi_ram_writel(void *opaque, target_phys_addr_t addr, uint32_t val) -{ - LSIState *s = opaque; - - addr &= 0x1fff; - s->script_ram[addr >> 2] = val; -} - -static uint32_t lsi_ram_readb(void *opaque, target_phys_addr_t addr) +static uint64_t lsi_ram_read(void *opaque, target_phys_addr_t addr, + unsigned size) { LSIState *s = opaque; uint32_t val; + uint32_t mask; - addr &= 0x1fff; val = s->script_ram[addr >> 2]; + mask = ((uint64_t)1 << (size * 8)) - 1; val >>= (addr & 3) * 8; - return val & 0xff; -} - -static uint32_t lsi_ram_readw(void *opaque, target_phys_addr_t addr) -{ - LSIState *s = opaque; - uint32_t val; - - addr &= 0x1fff; - val = s->script_ram[addr >> 2]; - if (addr & 2) - val >>= 16; - return val; -} - -static uint32_t lsi_ram_readl(void *opaque, target_phys_addr_t addr) -{ - LSIState *s = opaque; - - addr &= 0x1fff; - return s->script_ram[addr >> 2]; + return val & mask; } -static CPUReadMemoryFunc * const lsi_ram_readfn[3] = { - lsi_ram_readb, - lsi_ram_readw, - lsi_ram_readl, +static const MemoryRegionOps lsi_ram_ops = { + .read = lsi_ram_read, + .write = lsi_ram_write, + .endianness = DEVICE_NATIVE_ENDIAN, }; -static CPUWriteMemoryFunc * const lsi_ram_writefn[3] = { - lsi_ram_writeb, - lsi_ram_writew, - lsi_ram_writel, -}; - -static uint32_t lsi_io_readb(void *opaque, uint32_t addr) +static uint64_t lsi_io_read(void *opaque, target_phys_addr_t addr, + unsigned size) { LSIState *s = opaque; return lsi_reg_readb(s, addr & 0xff); } -static uint32_t lsi_io_readw(void *opaque, uint32_t addr) -{ - LSIState *s = opaque; - uint32_t val; - addr &= 0xff; - val = lsi_reg_readb(s, addr); - val |= lsi_reg_readb(s, addr + 1) << 8; - return val; -} - -static uint32_t lsi_io_readl(void *opaque, uint32_t addr) -{ - LSIState *s = opaque; - uint32_t val; - addr &= 0xff; - val = lsi_reg_readb(s, addr); - val |= lsi_reg_readb(s, addr + 1) << 8; - val |= lsi_reg_readb(s, addr + 2) << 16; - val |= lsi_reg_readb(s, addr + 3) << 24; - return val; -} - -static void lsi_io_writeb(void *opaque, uint32_t addr, uint32_t val) +static void lsi_io_write(void *opaque, target_phys_addr_t addr, + uint64_t val, unsigned size) { LSIState *s = opaque; lsi_reg_writeb(s, addr & 0xff, val); } -static void lsi_io_writew(void *opaque, uint32_t addr, uint32_t val) -{ - LSIState *s = opaque; - addr &= 0xff; - lsi_reg_writeb(s, addr, val & 0xff); - lsi_reg_writeb(s, addr + 1, (val >> 8) & 0xff); -} - -static void lsi_io_writel(void *opaque, uint32_t addr, uint32_t val) -{ - LSIState *s = opaque; - addr &= 0xff; - lsi_reg_writeb(s, addr, val & 0xff); - lsi_reg_writeb(s, addr + 1, (val >> 8) & 0xff); - lsi_reg_writeb(s, addr + 2, (val >> 16) & 0xff); - lsi_reg_writeb(s, addr + 3, (val >> 24) & 0xff); -} - -static void lsi_io_mapfunc(PCIDevice *pci_dev, int region_num, - pcibus_t addr, pcibus_t size, int type) -{ - LSIState *s = DO_UPCAST(LSIState, dev, pci_dev); - - DPRINTF("Mapping IO at %08"FMT_PCIBUS"\n", addr); - - register_ioport_write(addr, 256, 1, lsi_io_writeb, s); - register_ioport_read(addr, 256, 1, lsi_io_readb, s); - register_ioport_write(addr, 256, 2, lsi_io_writew, s); - register_ioport_read(addr, 256, 2, lsi_io_readw, s); - register_ioport_write(addr, 256, 4, lsi_io_writel, s); - register_ioport_read(addr, 256, 4, lsi_io_readl, s); -} - -static void lsi_ram_mapfunc(PCIDevice *pci_dev, int region_num, - pcibus_t addr, pcibus_t size, int type) -{ - LSIState *s = DO_UPCAST(LSIState, dev, pci_dev); - - DPRINTF("Mapping ram at %08"FMT_PCIBUS"\n", addr); - s->script_ram_base = addr; - cpu_register_physical_memory(addr + 0, 0x2000, s->ram_io_addr); -} +static const MemoryRegionOps lsi_io_ops = { + .read = lsi_io_read, + .write = lsi_io_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; static void lsi_scsi_reset(DeviceState *dev) { @@ -2231,8 +2088,9 @@ static int lsi_scsi_uninit(PCIDevice *d) { LSIState *s = DO_UPCAST(LSIState, dev, d); - cpu_unregister_io_memory(s->mmio_io_addr); - cpu_unregister_io_memory(s->ram_io_addr); + memory_region_destroy(&s->mmio_io); + memory_region_destroy(&s->ram_io); + memory_region_destroy(&s->io_io); return 0; } @@ -2256,18 +2114,14 @@ static int lsi_scsi_init(PCIDevice *dev) /* Interrupt pin 1 */ pci_conf[PCI_INTERRUPT_PIN] = 0x01; - s->mmio_io_addr = cpu_register_io_memory(lsi_mmio_readfn, - lsi_mmio_writefn, s, - DEVICE_NATIVE_ENDIAN); - s->ram_io_addr = cpu_register_io_memory(lsi_ram_readfn, - lsi_ram_writefn, s, - DEVICE_NATIVE_ENDIAN); - - pci_register_bar(&s->dev, 0, 256, - PCI_BASE_ADDRESS_SPACE_IO, lsi_io_mapfunc); - pci_register_bar_simple(&s->dev, 1, 0x400, 0, s->mmio_io_addr); - pci_register_bar(&s->dev, 2, 0x2000, - PCI_BASE_ADDRESS_SPACE_MEMORY, lsi_ram_mapfunc); + memory_region_init_io(&s->mmio_io, &lsi_mmio_ops, s, "lsi-mmio", 0x400); + memory_region_init_io(&s->ram_io, &lsi_ram_ops, s, "lsi-ram", 0x2000); + memory_region_init_io(&s->io_io, &lsi_io_ops, s, "lsi-io", 256); + + pci_register_bar_region(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_io); + pci_register_bar_region(&s->dev, 1, 0, &s->mmio_io); + pci_register_bar_region(&s->dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY, + &s->ram_io); QTAILQ_INIT(&s->queue); scsi_bus_new(&s->bus, &dev->qdev, 1, LSI_MAX_DEVS, &lsi_scsi_ops); |