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xemu/hw/pci-host/mv64361.c
BALATON Zoltan c785a40179 mv64361: Remove extra break from a switch case 
The switch case of writing PCI 1 IO base address had an extra break
statement that made part of the code unreachable. This did not cause a
problem as guests ususally leave this register at its default value.

Fixes: dcdf98a901 ("Add emulation of Marvell MV64361 PPC system
       controller")
Reported-by: Coverity (CID 1458135)
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20210712131259.B705B7456E3@zero.eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-07-13 10:12:17 +10:00

951 lines
30 KiB
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/*
* Marvell Discovery II MV64361 System Controller for
* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
*
* Copyright (c) 2018-2020 BALATON Zoltan
*
* This work is licensed under the GNU GPL license version 2 or later.
*
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "hw/hw.h"
#include "hw/sysbus.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_host.h"
#include "hw/irq.h"
#include "hw/intc/i8259.h"
#include "hw/qdev-properties.h"
#include "exec/address-spaces.h"
#include "qemu/log.h"
#include "qemu/error-report.h"
#include "trace.h"
#include "hw/pci-host/mv64361.h"
#include "mv643xx.h"
#define TYPE_MV64361_PCI_BRIDGE "mv64361-pcibridge"
static void mv64361_pcibridge_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->vendor_id = PCI_VENDOR_ID_MARVELL;
k->device_id = PCI_DEVICE_ID_MARVELL_MV6436X;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* PCI-facing part of the host bridge,
* not usable without the host-facing part
*/
dc->user_creatable = false;
}
static const TypeInfo mv64361_pcibridge_info = {
.name = TYPE_MV64361_PCI_BRIDGE,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = mv64361_pcibridge_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
#define TYPE_MV64361_PCI "mv64361-pcihost"
OBJECT_DECLARE_SIMPLE_TYPE(MV64361PCIState, MV64361_PCI)
struct MV64361PCIState {
PCIHostState parent_obj;
uint8_t index;
MemoryRegion io;
MemoryRegion mem;
qemu_irq irq[PCI_NUM_PINS];
uint32_t io_base;
uint32_t io_size;
uint32_t mem_base[4];
uint32_t mem_size[4];
uint64_t remap[5];
};
static int mv64361_pcihost_map_irq(PCIDevice *pci_dev, int n)
{
return (n + PCI_SLOT(pci_dev->devfn)) % PCI_NUM_PINS;
}
static void mv64361_pcihost_set_irq(void *opaque, int n, int level)
{
MV64361PCIState *s = opaque;
qemu_set_irq(s->irq[n], level);
}
static void mv64361_pcihost_realize(DeviceState *dev, Error **errp)
{
MV64361PCIState *s = MV64361_PCI(dev);
PCIHostState *h = PCI_HOST_BRIDGE(dev);
char *name;
name = g_strdup_printf("pci%d-io", s->index);
memory_region_init(&s->io, OBJECT(dev), name, 0x10000);
g_free(name);
name = g_strdup_printf("pci%d-mem", s->index);
memory_region_init(&s->mem, OBJECT(dev), name, 1ULL << 32);
g_free(name);
name = g_strdup_printf("pci.%d", s->index);
h->bus = pci_register_root_bus(dev, name, mv64361_pcihost_set_irq,
mv64361_pcihost_map_irq, dev,
&s->mem, &s->io, 0, 4, TYPE_PCI_BUS);
g_free(name);
pci_create_simple(h->bus, 0, TYPE_MV64361_PCI_BRIDGE);
}
static Property mv64361_pcihost_props[] = {
DEFINE_PROP_UINT8("index", MV64361PCIState, index, 0),
DEFINE_PROP_END_OF_LIST()
};
static void mv64361_pcihost_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = mv64361_pcihost_realize;
device_class_set_props(dc, mv64361_pcihost_props);
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo mv64361_pcihost_info = {
.name = TYPE_MV64361_PCI,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(MV64361PCIState),
.class_init = mv64361_pcihost_class_init,
};
static void mv64361_pci_register_types(void)
{
type_register_static(&mv64361_pcihost_info);
type_register_static(&mv64361_pcibridge_info);
}
type_init(mv64361_pci_register_types)
OBJECT_DECLARE_SIMPLE_TYPE(MV64361State, MV64361)
struct MV64361State {
SysBusDevice parent_obj;
MemoryRegion regs;
MV64361PCIState pci[2];
MemoryRegion cpu_win[19];
qemu_irq cpu_irq;
/* registers state */
uint32_t cpu_conf;
uint32_t regs_base;
uint32_t base_addr_enable;
uint64_t main_int_cr;
uint64_t cpu0_int_mask;
uint32_t gpp_io;
uint32_t gpp_level;
uint32_t gpp_value;
uint32_t gpp_int_cr;
uint32_t gpp_int_mask;
bool gpp_int_level;
};
enum mv64361_irq_cause {
MV64361_IRQ_DEVERR = 1,
MV64361_IRQ_DMAERR = 2,
MV64361_IRQ_CPUERR = 3,
MV64361_IRQ_IDMA0 = 4,
MV64361_IRQ_IDMA1 = 5,
MV64361_IRQ_IDMA2 = 6,
MV64361_IRQ_IDMA3 = 7,
MV64361_IRQ_TIMER0 = 8,
MV64361_IRQ_TIMER1 = 9,
MV64361_IRQ_TIMER2 = 10,
MV64361_IRQ_TIMER3 = 11,
MV64361_IRQ_PCI0 = 12,
MV64361_IRQ_SRAMERR = 13,
MV64361_IRQ_GBEERR = 14,
MV64361_IRQ_CERR = 15,
MV64361_IRQ_PCI1 = 16,
MV64361_IRQ_DRAMERR = 17,
MV64361_IRQ_WDNMI = 18,
MV64361_IRQ_WDE = 19,
MV64361_IRQ_PCI0IN = 20,
MV64361_IRQ_PCI0OUT = 21,
MV64361_IRQ_PCI1IN = 22,
MV64361_IRQ_PCI1OUT = 23,
MV64361_IRQ_P1_GPP0_7 = 24,
MV64361_IRQ_P1_GPP8_15 = 25,
MV64361_IRQ_P1_GPP16_23 = 26,
MV64361_IRQ_P1_GPP24_31 = 27,
MV64361_IRQ_P1_CPU_DB = 28,
/* 29-31: reserved */
MV64361_IRQ_GBE0 = 32,
MV64361_IRQ_GBE1 = 33,
MV64361_IRQ_GBE2 = 34,
/* 35: reserved */
MV64361_IRQ_SDMA0 = 36,
MV64361_IRQ_TWSI = 37,
MV64361_IRQ_SDMA1 = 38,
MV64361_IRQ_BRG = 39,
MV64361_IRQ_MPSC0 = 40,
MV64361_IRQ_MPSC1 = 41,
MV64361_IRQ_G0RX = 42,
MV64361_IRQ_G0TX = 43,
MV64361_IRQ_G0MISC = 44,
MV64361_IRQ_G1RX = 45,
MV64361_IRQ_G1TX = 46,
MV64361_IRQ_G1MISC = 47,
MV64361_IRQ_G2RX = 48,
MV64361_IRQ_G2TX = 49,
MV64361_IRQ_G2MISC = 50,
/* 51-55: reserved */
MV64361_IRQ_P0_GPP0_7 = 56,
MV64361_IRQ_P0_GPP8_15 = 57,
MV64361_IRQ_P0_GPP16_23 = 58,
MV64361_IRQ_P0_GPP24_31 = 59,
MV64361_IRQ_P0_CPU_DB = 60,
/* 61-63: reserved */
};
PCIBus *mv64361_get_pci_bus(DeviceState *dev, int n)
{
MV64361State *mv = MV64361(dev);
return PCI_HOST_BRIDGE(&mv->pci[n])->bus;
}
static void unmap_region(MemoryRegion *mr)
{
if (memory_region_is_mapped(mr)) {
memory_region_del_subregion(get_system_memory(), mr);
object_unparent(OBJECT(mr));
}
}
static void map_pci_region(MemoryRegion *mr, MemoryRegion *parent,
struct Object *owner, const char *name,
hwaddr poffs, uint64_t size, hwaddr moffs)
{
memory_region_init_alias(mr, owner, name, parent, poffs, size);
memory_region_add_subregion(get_system_memory(), moffs, mr);
trace_mv64361_region_map(name, poffs, size, moffs);
}
static void set_mem_windows(MV64361State *s, uint32_t val)
{
MV64361PCIState *p;
MemoryRegion *mr;
uint32_t mask;
int i;
val &= 0x1fffff;
for (mask = 1, i = 0; i < 21; i++, mask <<= 1) {
if ((val & mask) != (s->base_addr_enable & mask)) {
trace_mv64361_region_enable(!(val & mask) ? "enable" : "disable", i);
/*
* 0-3 are SDRAM chip selects but we map all RAM directly
* 4-7 are device chip selects (not sure what those are)
* 8 is Boot device (ROM) chip select but we map that directly too
*/
if (i == 9) {
p = &s->pci[0];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->io, OBJECT(s), "pci0-io-win",
p->remap[4], (p->io_size + 1) << 16,
(p->io_base & 0xfffff) << 16);
}
} else if (i == 10) {
p = &s->pci[0];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem0-win",
p->remap[0], (p->mem_size[0] + 1) << 16,
(p->mem_base[0] & 0xfffff) << 16);
}
} else if (i == 11) {
p = &s->pci[0];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem1-win",
p->remap[1], (p->mem_size[1] + 1) << 16,
(p->mem_base[1] & 0xfffff) << 16);
}
} else if (i == 12) {
p = &s->pci[0];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem2-win",
p->remap[2], (p->mem_size[2] + 1) << 16,
(p->mem_base[2] & 0xfffff) << 16);
}
} else if (i == 13) {
p = &s->pci[0];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem3-win",
p->remap[3], (p->mem_size[3] + 1) << 16,
(p->mem_base[3] & 0xfffff) << 16);
}
} else if (i == 14) {
p = &s->pci[1];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->io, OBJECT(s), "pci1-io-win",
p->remap[4], (p->io_size + 1) << 16,
(p->io_base & 0xfffff) << 16);
}
} else if (i == 15) {
p = &s->pci[1];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem0-win",
p->remap[0], (p->mem_size[0] + 1) << 16,
(p->mem_base[0] & 0xfffff) << 16);
}
} else if (i == 16) {
p = &s->pci[1];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem1-win",
p->remap[1], (p->mem_size[1] + 1) << 16,
(p->mem_base[1] & 0xfffff) << 16);
}
} else if (i == 17) {
p = &s->pci[1];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem2-win",
p->remap[2], (p->mem_size[2] + 1) << 16,
(p->mem_base[2] & 0xfffff) << 16);
}
} else if (i == 18) {
p = &s->pci[1];
mr = &s->cpu_win[i];
unmap_region(mr);
if (!(val & mask)) {
map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem3-win",
p->remap[3], (p->mem_size[3] + 1) << 16,
(p->mem_base[3] & 0xfffff) << 16);
}
/* 19 is integrated SRAM */
} else if (i == 20) {
mr = &s->regs;
unmap_region(mr);
if (!(val & mask)) {
memory_region_add_subregion(get_system_memory(),
(s->regs_base & 0xfffff) << 16, mr);
}
}
}
}
s->base_addr_enable = val;
}
static void mv64361_update_irq(void *opaque, int n, int level)
{
MV64361State *s = opaque;
uint64_t val = s->main_int_cr;
if (level) {
val |= BIT_ULL(n);
} else {
val &= ~BIT_ULL(n);
}
if ((s->main_int_cr & s->cpu0_int_mask) != (val & s->cpu0_int_mask)) {
qemu_set_irq(s->cpu_irq, level);
}
s->main_int_cr = val;
}
static uint64_t mv64361_read(void *opaque, hwaddr addr, unsigned int size)
{
MV64361State *s = MV64361(opaque);
uint32_t ret = 0;
switch (addr) {
case MV64340_CPU_CONFIG:
ret = s->cpu_conf;
break;
case MV64340_PCI_0_IO_BASE_ADDR:
ret = s->pci[0].io_base;
break;
case MV64340_PCI_0_IO_SIZE:
ret = s->pci[0].io_size;
break;
case MV64340_PCI_0_IO_ADDR_REMAP:
ret = s->pci[0].remap[4] >> 16;
break;
case MV64340_PCI_0_MEMORY0_BASE_ADDR:
ret = s->pci[0].mem_base[0];
break;
case MV64340_PCI_0_MEMORY0_SIZE:
ret = s->pci[0].mem_size[0];
break;
case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP:
ret = (s->pci[0].remap[0] & 0xffff0000) >> 16;
break;
case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP:
ret = s->pci[0].remap[0] >> 32;
break;
case MV64340_PCI_0_MEMORY1_BASE_ADDR:
ret = s->pci[0].mem_base[1];
break;
case MV64340_PCI_0_MEMORY1_SIZE:
ret = s->pci[0].mem_size[1];
break;
case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP:
ret = (s->pci[0].remap[1] & 0xffff0000) >> 16;
break;
case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP:
ret = s->pci[0].remap[1] >> 32;
break;
case MV64340_PCI_0_MEMORY2_BASE_ADDR:
ret = s->pci[0].mem_base[2];
break;
case MV64340_PCI_0_MEMORY2_SIZE:
ret = s->pci[0].mem_size[2];
break;
case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP:
ret = (s->pci[0].remap[2] & 0xffff0000) >> 16;
break;
case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP:
ret = s->pci[0].remap[2] >> 32;
break;
case MV64340_PCI_0_MEMORY3_BASE_ADDR:
ret = s->pci[0].mem_base[3];
break;
case MV64340_PCI_0_MEMORY3_SIZE:
ret = s->pci[0].mem_size[3];
break;
case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP:
ret = (s->pci[0].remap[3] & 0xffff0000) >> 16;
break;
case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP:
ret = s->pci[0].remap[3] >> 32;
break;
case MV64340_PCI_1_IO_BASE_ADDR:
ret = s->pci[1].io_base;
break;
case MV64340_PCI_1_IO_SIZE:
ret = s->pci[1].io_size;
break;
case MV64340_PCI_1_IO_ADDR_REMAP:
ret = s->pci[1].remap[4] >> 16;
break;
case MV64340_PCI_1_MEMORY0_BASE_ADDR:
ret = s->pci[1].mem_base[0];
break;
case MV64340_PCI_1_MEMORY0_SIZE:
ret = s->pci[1].mem_size[0];
break;
case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP:
ret = (s->pci[1].remap[0] & 0xffff0000) >> 16;
break;
case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP:
ret = s->pci[1].remap[0] >> 32;
break;
case MV64340_PCI_1_MEMORY1_BASE_ADDR:
ret = s->pci[1].mem_base[1];
break;
case MV64340_PCI_1_MEMORY1_SIZE:
ret = s->pci[1].mem_size[1];
break;
case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP:
ret = (s->pci[1].remap[1] & 0xffff0000) >> 16;
break;
case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP:
ret = s->pci[1].remap[1] >> 32;
break;
case MV64340_PCI_1_MEMORY2_BASE_ADDR:
ret = s->pci[1].mem_base[2];
break;
case MV64340_PCI_1_MEMORY2_SIZE:
ret = s->pci[1].mem_size[2];
break;
case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP:
ret = (s->pci[1].remap[2] & 0xffff0000) >> 16;
break;
case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP:
ret = s->pci[1].remap[2] >> 32;
break;
case MV64340_PCI_1_MEMORY3_BASE_ADDR:
ret = s->pci[1].mem_base[3];
break;
case MV64340_PCI_1_MEMORY3_SIZE:
ret = s->pci[1].mem_size[3];
break;
case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP:
ret = (s->pci[1].remap[3] & 0xffff0000) >> 16;
break;
case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP:
ret = s->pci[1].remap[3] >> 32;
break;
case MV64340_INTERNAL_SPACE_BASE_ADDR:
ret = s->regs_base;
break;
case MV64340_BASE_ADDR_ENABLE:
ret = s->base_addr_enable;
break;
case MV64340_PCI_0_CONFIG_ADDR:
ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]), 0, size);
break;
case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ...
MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3:
ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]),
addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, size);
break;
case MV64340_PCI_1_CONFIG_ADDR:
ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]), 0, size);
break;
case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ...
MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3:
ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]),
addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, size);
break;
case MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG:
/* FIXME: Should this be sent via the PCI bus somehow? */
if (s->gpp_int_level && (s->gpp_value & BIT(31))) {
ret = pic_read_irq(isa_pic);
}
break;
case MV64340_MAIN_INTERRUPT_CAUSE_LOW:
ret = s->main_int_cr;
break;
case MV64340_MAIN_INTERRUPT_CAUSE_HIGH:
ret = s->main_int_cr >> 32;
break;
case MV64340_CPU_INTERRUPT0_MASK_LOW:
ret = s->cpu0_int_mask;
break;
case MV64340_CPU_INTERRUPT0_MASK_HIGH:
ret = s->cpu0_int_mask >> 32;
break;
case MV64340_CPU_INTERRUPT0_SELECT_CAUSE:
ret = s->main_int_cr;
if (s->main_int_cr & s->cpu0_int_mask) {
if (!(s->main_int_cr & s->cpu0_int_mask & 0xffffffff)) {
ret = s->main_int_cr >> 32 | BIT(30);
} else if ((s->main_int_cr & s->cpu0_int_mask) >> 32) {
ret |= BIT(31);
}
}
break;
case MV64340_CUNIT_ARBITER_CONTROL_REG:
ret = 0x11ff0000 | (s->gpp_int_level << 10);
break;
case MV64340_GPP_IO_CONTROL:
ret = s->gpp_io;
break;
case MV64340_GPP_LEVEL_CONTROL:
ret = s->gpp_level;
break;
case MV64340_GPP_VALUE:
ret = s->gpp_value;
break;
case MV64340_GPP_VALUE_SET:
case MV64340_GPP_VALUE_CLEAR:
ret = 0;
break;
case MV64340_GPP_INTERRUPT_CAUSE:
ret = s->gpp_int_cr;
break;
case MV64340_GPP_INTERRUPT_MASK0:
case MV64340_GPP_INTERRUPT_MASK1:
ret = s->gpp_int_mask;
break;
default:
qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register read 0x%"
HWADDR_PRIx "\n", __func__, addr);
break;
}
if (addr != MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG) {
trace_mv64361_reg_read(addr, ret);
}
return ret;
}
static void warn_swap_bit(uint64_t val)
{
if ((val & 0x3000000ULL) >> 24 != 1) {
qemu_log_mask(LOG_UNIMP, "%s: Data swap not implemented", __func__);
}
}
static void mv64361_set_pci_mem_remap(MV64361State *s, int bus, int idx,
uint64_t val, bool high)
{
if (high) {
s->pci[bus].remap[idx] = val;
} else {
s->pci[bus].remap[idx] &= 0xffffffff00000000ULL;
s->pci[bus].remap[idx] |= (val & 0xffffULL) << 16;
}
}
static void mv64361_write(void *opaque, hwaddr addr, uint64_t val,
unsigned int size)
{
MV64361State *s = MV64361(opaque);
trace_mv64361_reg_write(addr, val);
switch (addr) {
case MV64340_CPU_CONFIG:
s->cpu_conf = val & 0xe4e3bffULL;
s->cpu_conf |= BIT(23);
break;
case MV64340_PCI_0_IO_BASE_ADDR:
s->pci[0].io_base = val & 0x30fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
s->pci[0].remap[4] = (val & 0xffffULL) << 16;
}
break;
case MV64340_PCI_0_IO_SIZE:
s->pci[0].io_size = val & 0xffffULL;
break;
case MV64340_PCI_0_IO_ADDR_REMAP:
s->pci[0].remap[4] = (val & 0xffffULL) << 16;
break;
case MV64340_PCI_0_MEMORY0_BASE_ADDR:
s->pci[0].mem_base[0] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 0, 0, val, false);
}
break;
case MV64340_PCI_0_MEMORY0_SIZE:
s->pci[0].mem_size[0] = val & 0xffffULL;
break;
case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP:
case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 0, 0, val,
(addr == MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_0_MEMORY1_BASE_ADDR:
s->pci[0].mem_base[1] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 0, 1, val, false);
}
break;
case MV64340_PCI_0_MEMORY1_SIZE:
s->pci[0].mem_size[1] = val & 0xffffULL;
break;
case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP:
case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 0, 1, val,
(addr == MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_0_MEMORY2_BASE_ADDR:
s->pci[0].mem_base[2] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 0, 2, val, false);
}
break;
case MV64340_PCI_0_MEMORY2_SIZE:
s->pci[0].mem_size[2] = val & 0xffffULL;
break;
case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP:
case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 0, 2, val,
(addr == MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_0_MEMORY3_BASE_ADDR:
s->pci[0].mem_base[3] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 0, 3, val, false);
}
break;
case MV64340_PCI_0_MEMORY3_SIZE:
s->pci[0].mem_size[3] = val & 0xffffULL;
break;
case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP:
case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 0, 3, val,
(addr == MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_1_IO_BASE_ADDR:
s->pci[1].io_base = val & 0x30fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
s->pci[1].remap[4] = (val & 0xffffULL) << 16;
}
break;
case MV64340_PCI_1_IO_SIZE:
s->pci[1].io_size = val & 0xffffULL;
break;
case MV64340_PCI_1_MEMORY0_BASE_ADDR:
s->pci[1].mem_base[0] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 1, 0, val, false);
}
break;
case MV64340_PCI_1_MEMORY0_SIZE:
s->pci[1].mem_size[0] = val & 0xffffULL;
break;
case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP:
case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 1, 0, val,
(addr == MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_1_MEMORY1_BASE_ADDR:
s->pci[1].mem_base[1] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 1, 1, val, false);
}
break;
case MV64340_PCI_1_MEMORY1_SIZE:
s->pci[1].mem_size[1] = val & 0xffffULL;
break;
case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP:
case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 1, 1, val,
(addr == MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_1_MEMORY2_BASE_ADDR:
s->pci[1].mem_base[2] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 1, 2, val, false);
}
break;
case MV64340_PCI_1_MEMORY2_SIZE:
s->pci[1].mem_size[2] = val & 0xffffULL;
break;
case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP:
case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 1, 2, val,
(addr == MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP));
break;
case MV64340_PCI_1_MEMORY3_BASE_ADDR:
s->pci[1].mem_base[3] = val & 0x70fffffULL;
warn_swap_bit(val);
if (!(s->cpu_conf & BIT(27))) {
mv64361_set_pci_mem_remap(s, 1, 3, val, false);
}
break;
case MV64340_PCI_1_MEMORY3_SIZE:
s->pci[1].mem_size[3] = val & 0xffffULL;
break;
case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP:
case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP:
mv64361_set_pci_mem_remap(s, 1, 3, val,
(addr == MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP));
break;
case MV64340_INTERNAL_SPACE_BASE_ADDR:
s->regs_base = val & 0xfffffULL;
break;
case MV64340_BASE_ADDR_ENABLE:
set_mem_windows(s, val);
break;
case MV64340_PCI_0_CONFIG_ADDR:
pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]), 0, val, size);
break;
case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ...
MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3:
pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]),
addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, val, size);
break;
case MV64340_PCI_1_CONFIG_ADDR:
pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]), 0, val, size);
break;
case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ...
MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3:
pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]),
addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, val, size);
break;
case MV64340_CPU_INTERRUPT0_MASK_LOW:
s->cpu0_int_mask &= 0xffffffff00000000ULL;
s->cpu0_int_mask |= val & 0xffffffffULL;
break;
case MV64340_CPU_INTERRUPT0_MASK_HIGH:
s->cpu0_int_mask &= 0xffffffffULL;
s->cpu0_int_mask |= val << 32;
break;
case MV64340_CUNIT_ARBITER_CONTROL_REG:
s->gpp_int_level = !!(val & BIT(10));
break;
case MV64340_GPP_IO_CONTROL:
s->gpp_io = val;
break;
case MV64340_GPP_LEVEL_CONTROL:
s->gpp_level = val;
break;
case MV64340_GPP_VALUE:
s->gpp_value &= ~s->gpp_io;
s->gpp_value |= val & s->gpp_io;
break;
case MV64340_GPP_VALUE_SET:
s->gpp_value |= val & s->gpp_io;
break;
case MV64340_GPP_VALUE_CLEAR:
s->gpp_value &= ~(val & s->gpp_io);
break;
case MV64340_GPP_INTERRUPT_CAUSE:
if (!s->gpp_int_level && val != s->gpp_int_cr) {
int i;
uint32_t ch = s->gpp_int_cr ^ val;
s->gpp_int_cr = val;
for (i = 0; i < 4; i++) {
if ((ch & 0xff << i) && !(val & 0xff << i)) {
mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + i, 0);
}
}
} else {
s->gpp_int_cr = val;
}
break;
case MV64340_GPP_INTERRUPT_MASK0:
case MV64340_GPP_INTERRUPT_MASK1:
s->gpp_int_mask = val;
break;
default:
qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register write 0x%"
HWADDR_PRIx " = %"PRIx64"\n", __func__, addr, val);
break;
}
}
static const MemoryRegionOps mv64361_ops = {
.read = mv64361_read,
.write = mv64361_write,
.valid.min_access_size = 1,
.valid.max_access_size = 4,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static void mv64361_gpp_irq(void *opaque, int n, int level)
{
MV64361State *s = opaque;
uint32_t mask = BIT(n);
uint32_t val = s->gpp_value & ~mask;
if (s->gpp_level & mask) {
level = !level;
}
val |= level << n;
if (val > s->gpp_value) {
s->gpp_value = val;
s->gpp_int_cr |= mask;
if (s->gpp_int_mask & mask) {
mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + n / 8, 1);
}
} else if (val < s->gpp_value) {
int b = n / 8;
s->gpp_value = val;
if (s->gpp_int_level && !(val & 0xff << b)) {
mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + b, 0);
}
}
}
static void mv64361_realize(DeviceState *dev, Error **errp)
{
MV64361State *s = MV64361(dev);
int i;
s->base_addr_enable = 0x1fffff;
memory_region_init_io(&s->regs, OBJECT(s), &mv64361_ops, s,
TYPE_MV64361, 0x10000);
for (i = 0; i < 2; i++) {
g_autofree char *name = g_strdup_printf("pcihost%d", i);
object_initialize_child(OBJECT(dev), name, &s->pci[i],
TYPE_MV64361_PCI);
DeviceState *pci = DEVICE(&s->pci[i]);
qdev_prop_set_uint8(pci, "index", i);
sysbus_realize_and_unref(SYS_BUS_DEVICE(pci), &error_fatal);
}
sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->cpu_irq);
qdev_init_gpio_in_named(dev, mv64361_gpp_irq, "gpp", 32);
/* FIXME: PCI IRQ connections may be board specific */
for (i = 0; i < PCI_NUM_PINS; i++) {
s->pci[1].irq[i] = qdev_get_gpio_in_named(dev, "gpp", 12 + i);
}
}
static void mv64361_reset(DeviceState *dev)
{
MV64361State *s = MV64361(dev);
int i, j;
/*
* These values may be board specific
* Real chip supports init from an eprom but that's not modelled
*/
set_mem_windows(s, 0x1fffff);
s->cpu_conf = 0x28000ff;
s->regs_base = 0x100f100;
s->pci[0].io_base = 0x100f800;
s->pci[0].io_size = 0xff;
s->pci[0].mem_base[0] = 0x100c000;
s->pci[0].mem_size[0] = 0x1fff;
s->pci[0].mem_base[1] = 0x100f900;
s->pci[0].mem_size[1] = 0xff;
s->pci[0].mem_base[2] = 0x100f400;
s->pci[0].mem_size[2] = 0x1ff;
s->pci[0].mem_base[3] = 0x100f600;
s->pci[0].mem_size[3] = 0x1ff;
s->pci[1].io_base = 0x100fe00;
s->pci[1].io_size = 0xff;
s->pci[1].mem_base[0] = 0x1008000;
s->pci[1].mem_size[0] = 0x3fff;
s->pci[1].mem_base[1] = 0x100fd00;
s->pci[1].mem_size[1] = 0xff;
s->pci[1].mem_base[2] = 0x1002600;
s->pci[1].mem_size[2] = 0x1ff;
s->pci[1].mem_base[3] = 0x100ff80;
s->pci[1].mem_size[3] = 0x7f;
for (i = 0; i < 2; i++) {
for (j = 0; j < 4; j++) {
s->pci[i].remap[j] = s->pci[i].mem_base[j] << 16;
}
}
s->pci[0].remap[1] = 0;
s->pci[1].remap[1] = 0;
set_mem_windows(s, 0xfbfff);
}
static void mv64361_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = mv64361_realize;
dc->reset = mv64361_reset;
}
static const TypeInfo mv64361_type_info = {
.name = TYPE_MV64361,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(MV64361State),
.class_init = mv64361_class_init,
};
static void mv64361_register_types(void)
{
type_register_static(&mv64361_type_info);
}
type_init(mv64361_register_types)
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