1 /* 2 * QEMU RISC-V VirtIO machine interface 3 * 4 * Copyright (c) 2017 SiFive, Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2 or later, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along with 16 * this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #ifndef HW_RISCV_VIRT_H 20 #define HW_RISCV_VIRT_H 21 22 typedef struct { 23 /*< private >*/ 24 SysBusDevice parent_obj; 25 26 /*< public >*/ 27 RISCVHartArrayState soc; 28 DeviceState *plic; 29 void *fdt; 30 int fdt_size; 31 } RISCVVirtState; 32 33 enum { 34 VIRT_DEBUG, 35 VIRT_MROM, 36 VIRT_TEST, 37 VIRT_CLINT, 38 VIRT_PLIC, 39 VIRT_UART0, 40 VIRT_VIRTIO, 41 VIRT_DRAM, 42 VIRT_PCIE_MMIO, 43 VIRT_PCIE_PIO, 44 VIRT_PCIE_ECAM 45 }; 46 47 enum { 48 UART0_IRQ = 10, 49 VIRTIO_IRQ = 1, /* 1 to 8 */ 50 VIRTIO_COUNT = 8, 51 PCIE_IRQ = 0x20, /* 32 to 35 */ 52 VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */ 53 }; 54 55 enum { 56 VIRT_CLOCK_FREQ = 1000000000 57 }; 58 59 #define VIRT_PLIC_HART_CONFIG "MS" 60 #define VIRT_PLIC_NUM_SOURCES 127 61 #define VIRT_PLIC_NUM_PRIORITIES 7 62 #define VIRT_PLIC_PRIORITY_BASE 0x0 63 #define VIRT_PLIC_PENDING_BASE 0x1000 64 #define VIRT_PLIC_ENABLE_BASE 0x2000 65 #define VIRT_PLIC_ENABLE_STRIDE 0x80 66 #define VIRT_PLIC_CONTEXT_BASE 0x200000 67 #define VIRT_PLIC_CONTEXT_STRIDE 0x1000 68 69 #define FDT_PCI_ADDR_CELLS 3 70 #define FDT_PCI_INT_CELLS 1 71 #define FDT_PLIC_ADDR_CELLS 0 72 #define FDT_PLIC_INT_CELLS 1 73 #define FDT_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + \ 74 FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS) 75 76 #if defined(TARGET_RISCV32) 77 #define VIRT_CPU TYPE_RISCV_CPU_RV32GCSU_V1_10_0 78 #elif defined(TARGET_RISCV64) 79 #define VIRT_CPU TYPE_RISCV_CPU_RV64GCSU_V1_10_0 80 #endif 81 82 #endif 83