#include "sysemu/arch_init.h"
#include "sysemu/device_tree.h"
#include "exec/address-spaces.h"
+#include "hw/pci/pci.h"
+#include "hw/pci-host/gpex.h"
#include "elf.h"
#include <libfdt.h>
hwaddr base;
hwaddr size;
} virt_memmap[] = {
- [VIRT_DEBUG] = { 0x0, 0x100 },
- [VIRT_MROM] = { 0x1000, 0x11000 },
- [VIRT_TEST] = { 0x100000, 0x1000 },
- [VIRT_CLINT] = { 0x2000000, 0x10000 },
- [VIRT_PLIC] = { 0xc000000, 0x4000000 },
- [VIRT_UART0] = { 0x10000000, 0x100 },
- [VIRT_VIRTIO] = { 0x10001000, 0x1000 },
- [VIRT_DRAM] = { 0x80000000, 0x0 },
+ [VIRT_DEBUG] = { 0x0, 0x100 },
+ [VIRT_MROM] = { 0x1000, 0x11000 },
+ [VIRT_TEST] = { 0x100000, 0x1000 },
+ [VIRT_CLINT] = { 0x2000000, 0x10000 },
+ [VIRT_PLIC] = { 0xc000000, 0x4000000 },
+ [VIRT_UART0] = { 0x10000000, 0x100 },
+ [VIRT_VIRTIO] = { 0x10001000, 0x1000 },
+ [VIRT_DRAM] = { 0x80000000, 0x0 },
+ [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 },
+ [VIRT_PCIE_PIO] = { 0x03000000, 0x00010000 },
+ [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 },
};
static uint64_t load_kernel(const char *kernel_filename)
{
uint64_t kernel_entry, kernel_high;
- if (load_elf(kernel_filename, NULL, NULL,
+ if (load_elf(kernel_filename, NULL, NULL, NULL,
&kernel_entry, NULL, &kernel_high,
0, EM_RISCV, 1, 0) < 0) {
- error_report("qemu: could not load kernel '%s'", kernel_filename);
+ error_report("could not load kernel '%s'", kernel_filename);
exit(1);
}
return kernel_entry;
if (size == -1) {
size = load_image_targphys(filename, *start, mem_size - *start);
if (size == -1) {
- error_report("qemu: could not load ramdisk '%s'", filename);
+ error_report("could not load ramdisk '%s'", filename);
exit(1);
}
}
return *start + size;
}
+static void create_pcie_irq_map(void *fdt, char *nodename,
+ uint32_t plic_phandle)
+{
+ int pin, dev;
+ uint32_t
+ full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * FDT_INT_MAP_WIDTH] = {};
+ uint32_t *irq_map = full_irq_map;
+
+ /* This code creates a standard swizzle of interrupts such that
+ * each device's first interrupt is based on it's PCI_SLOT number.
+ * (See pci_swizzle_map_irq_fn())
+ *
+ * We only need one entry per interrupt in the table (not one per
+ * possible slot) seeing the interrupt-map-mask will allow the table
+ * to wrap to any number of devices.
+ */
+ for (dev = 0; dev < GPEX_NUM_IRQS; dev++) {
+ int devfn = dev * 0x8;
+
+ for (pin = 0; pin < GPEX_NUM_IRQS; pin++) {
+ int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS);
+ int i = 0;
+
+ irq_map[i] = cpu_to_be32(devfn << 8);
+
+ i += FDT_PCI_ADDR_CELLS;
+ irq_map[i] = cpu_to_be32(pin + 1);
+
+ i += FDT_PCI_INT_CELLS;
+ irq_map[i++] = cpu_to_be32(plic_phandle);
+
+ i += FDT_PLIC_ADDR_CELLS;
+ irq_map[i] = cpu_to_be32(irq_nr);
+
+ irq_map += FDT_INT_MAP_WIDTH;
+ }
+ }
+
+ qemu_fdt_setprop(fdt, nodename, "interrupt-map",
+ full_irq_map, sizeof(full_irq_map));
+
+ qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask",
+ 0x1800, 0, 0, 0x7);
+}
+
static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
uint64_t mem_size, const char *cmdline)
{
qemu_fdt_add_subnode(fdt, "/soc");
qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0);
- qemu_fdt_setprop_string(fdt, "/soc", "compatible", "riscv-virtio-soc");
+ qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus");
qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2);
qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2);
nodename = g_strdup_printf("/soc/interrupt-controller@%lx",
(long)memmap[VIRT_PLIC].base);
qemu_fdt_add_subnode(fdt, nodename);
- qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 1);
+ qemu_fdt_setprop_cells(fdt, nodename, "#address-cells",
+ FDT_PLIC_ADDR_CELLS);
+ qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells",
+ FDT_PLIC_INT_CELLS);
qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,plic0");
qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop(fdt, nodename, "interrupts-extended",
g_free(nodename);
}
+ nodename = g_strdup_printf("/soc/pci@%lx",
+ (long) memmap[VIRT_PCIE_ECAM].base);
+ qemu_fdt_add_subnode(fdt, nodename);
+ qemu_fdt_setprop_cells(fdt, nodename, "#address-cells",
+ FDT_PCI_ADDR_CELLS);
+ qemu_fdt_setprop_cells(fdt, nodename, "#interrupt-cells",
+ FDT_PCI_INT_CELLS);
+ qemu_fdt_setprop_cells(fdt, nodename, "#size-cells", 0x2);
+ qemu_fdt_setprop_string(fdt, nodename, "compatible",
+ "pci-host-ecam-generic");
+ qemu_fdt_setprop_string(fdt, nodename, "device_type", "pci");
+ qemu_fdt_setprop_cell(fdt, nodename, "linux,pci-domain", 0);
+ qemu_fdt_setprop_cells(fdt, nodename, "bus-range", 0,
+ memmap[VIRT_PCIE_ECAM].base /
+ PCIE_MMCFG_SIZE_MIN - 1);
+ qemu_fdt_setprop(fdt, nodename, "dma-coherent", NULL, 0);
+ qemu_fdt_setprop_cells(fdt, nodename, "reg", 0, memmap[VIRT_PCIE_ECAM].base,
+ 0, memmap[VIRT_PCIE_ECAM].size);
+ qemu_fdt_setprop_sized_cells(fdt, nodename, "ranges",
+ 1, FDT_PCI_RANGE_IOPORT, 2, 0,
+ 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size,
+ 1, FDT_PCI_RANGE_MMIO,
+ 2, memmap[VIRT_PCIE_MMIO].base,
+ 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size);
+ create_pcie_irq_map(fdt, nodename, plic_phandle);
+ g_free(nodename);
+
nodename = g_strdup_printf("/test@%lx",
(long)memmap[VIRT_TEST].base);
qemu_fdt_add_subnode(fdt, nodename);
qemu_fdt_setprop_cells(fdt, nodename, "reg",
0x0, memmap[VIRT_TEST].base,
0x0, memmap[VIRT_TEST].size);
+ g_free(nodename);
nodename = g_strdup_printf("/uart@%lx",
(long)memmap[VIRT_UART0].base);
qemu_fdt_add_subnode(fdt, "/chosen");
qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename);
- qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+ if (cmdline) {
+ qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
+ }
g_free(nodename);
return fdt;
}
+
+static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem,
+ hwaddr ecam_base, hwaddr ecam_size,
+ hwaddr mmio_base, hwaddr mmio_size,
+ hwaddr pio_base,
+ DeviceState *plic, bool link_up)
+{
+ DeviceState *dev;
+ MemoryRegion *ecam_alias, *ecam_reg;
+ MemoryRegion *mmio_alias, *mmio_reg;
+ qemu_irq irq;
+ int i;
+
+ dev = qdev_create(NULL, TYPE_GPEX_HOST);
+
+ qdev_init_nofail(dev);
+
+ ecam_alias = g_new0(MemoryRegion, 1);
+ ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
+ memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam",
+ ecam_reg, 0, ecam_size);
+ memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias);
+
+ mmio_alias = g_new0(MemoryRegion, 1);
+ mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1);
+ memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio",
+ mmio_reg, mmio_base, mmio_size);
+ memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias);
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base);
+
+ for (i = 0; i < GPEX_NUM_IRQS; i++) {
+ irq = qdev_get_gpio_in(plic, PCIE_IRQ + i);
+
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
+ gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i);
+ }
+
+ return dev;
+}
+
static void riscv_virt_board_init(MachineState *machine)
{
const struct MemmapEntry *memmap = virt_memmap;
void *fdt;
/* Initialize SOC */
- object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY);
- object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
- &error_abort);
+ object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
+ TYPE_RISCV_HART_ARRAY, &error_abort, NULL);
object_property_set_str(OBJECT(&s->soc), VIRT_CPU, "cpu-type",
&error_abort);
object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
qdev_get_gpio_in(DEVICE(s->plic), VIRTIO_IRQ + i));
}
+ gpex_pcie_init(system_memory,
+ memmap[VIRT_PCIE_ECAM].base,
+ memmap[VIRT_PCIE_ECAM].size,
+ memmap[VIRT_PCIE_MMIO].base,
+ memmap[VIRT_PCIE_MMIO].size,
+ memmap[VIRT_PCIE_PIO].base,
+ DEVICE(s->plic), true);
+
serial_mm_init(system_memory, memmap[VIRT_UART0].base,
0, qdev_get_gpio_in(DEVICE(s->plic), UART0_IRQ), 399193,
serial_hd(0), DEVICE_LITTLE_ENDIAN);
+
+ g_free(plic_hart_config);
}
static void riscv_virt_board_machine_init(MachineClass *mc)
projects / qemu.git / blobdiff