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qemu/hw/pci-host/mv64361.c

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hw/pci-host: Add emulation of Marvell MV64361 PPC system controller The Marvell Discovery II aka. MV64361 is a PowerPC system controller chip that is used on the pegasos2 PPC board. This adds emulation of it that models the device enough to boot guests on this board. The mv643xx.h header with register definitions is taken from Linux 4.15.10 only fixing white space errors, removing not needed parts and changing formatting for QEMU coding style. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Message-Id: <79545ebd03bfe0665b73d2d7cbc74fdf3d62629e.1616680239.git.balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-03-25 16:50:39 +03:00
/*
* 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/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);
ppc/pegasos2: Access MV64361 registers via their memory region Instead of relying on the mapped address of the MV64361 registers access them via their memory region. This is not a problem at reset time when these registers are mapped at the default address but the guest could change this later and then the RTAS calls accessing PCI config registers could fail. None of the guests actually do this so this only avoids a theoretical problem not seen in practice. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Message-Id: <b6f768023603dc2c4d130720bcecdbea459b7668.1634241019.git.balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-14 22:50:19 +03:00
sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->regs);
hw/pci-host: Add emulation of Marvell MV64361 PPC system controller The Marvell Discovery II aka. MV64361 is a PowerPC system controller chip that is used on the pegasos2 PPC board. This adds emulation of it that models the device enough to boot guests on this board. The mv643xx.h header with register definitions is taken from Linux 4.15.10 only fixing white space errors, removing not needed parts and changing formatting for QEMU coding style. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Message-Id: <79545ebd03bfe0665b73d2d7cbc74fdf3d62629e.1616680239.git.balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-03-25 16:50:39 +03:00
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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