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-rw-r--r--include/hw/arm/virt.h19
-rw-r--r--include/hw/core/tcg-cpu-ops.h1
-rw-r--r--include/hw/intc/arm_gicv3_common.h13
-rw-r--r--include/hw/intc/arm_gicv3_its_common.h19
-rw-r--r--include/hw/intc/nios2_vic.h64
-rw-r--r--include/hw/intc/riscv_aclint.h1
-rw-r--r--include/hw/riscv/boot.h4
-rw-r--r--include/hw/riscv/opentitan.h30
-rw-r--r--include/hw/ssi/ibex_spi_host.h94
9 files changed, 231 insertions, 14 deletions
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 7e76ee2619..15feabac63 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -113,6 +113,7 @@ typedef enum VirtGICType {
     VIRT_GIC_VERSION_HOST,
     VIRT_GIC_VERSION_2,
     VIRT_GIC_VERSION_3,
+    VIRT_GIC_VERSION_4,
     VIRT_GIC_VERSION_NOSEL,
 } VirtGICType;
 
@@ -185,13 +186,25 @@ OBJECT_DECLARE_TYPE(VirtMachineState, VirtMachineClass, VIRT_MACHINE)
 void virt_acpi_setup(VirtMachineState *vms);
 bool virt_is_acpi_enabled(VirtMachineState *vms);
 
+/* Return number of redistributors that fit in the specified region */
+static uint32_t virt_redist_capacity(VirtMachineState *vms, int region)
+{
+    uint32_t redist_size;
+
+    if (vms->gic_version == VIRT_GIC_VERSION_3) {
+        redist_size = GICV3_REDIST_SIZE;
+    } else {
+        redist_size = GICV4_REDIST_SIZE;
+    }
+    return vms->memmap[region].size / redist_size;
+}
+
 /* Return the number of used redistributor regions  */
 static inline int virt_gicv3_redist_region_count(VirtMachineState *vms)
 {
-    uint32_t redist0_capacity =
-                vms->memmap[VIRT_GIC_REDIST].size / GICV3_REDIST_SIZE;
+    uint32_t redist0_capacity = virt_redist_capacity(vms, VIRT_GIC_REDIST);
 
-    assert(vms->gic_version == VIRT_GIC_VERSION_3);
+    assert(vms->gic_version != VIRT_GIC_VERSION_2);
 
     return (MACHINE(vms)->smp.cpus > redist0_capacity &&
             vms->highmem_redists) ? 2 : 1;
diff --git a/include/hw/core/tcg-cpu-ops.h b/include/hw/core/tcg-cpu-ops.h
index fbe6b76764..78c6c6635d 100644
--- a/include/hw/core/tcg-cpu-ops.h
+++ b/include/hw/core/tcg-cpu-ops.h
@@ -90,6 +90,7 @@ struct TCGCPUOps {
     /**
      * @debug_check_watchpoint: return true if the architectural
      * watchpoint whose address has matched should really fire, used by ARM
+     * and RISC-V
      */
     bool (*debug_check_watchpoint)(CPUState *cpu, CPUWatchpoint *wp);
 
diff --git a/include/hw/intc/arm_gicv3_common.h b/include/hw/intc/arm_gicv3_common.h
index fc38e4b7dc..4e41610055 100644
--- a/include/hw/intc/arm_gicv3_common.h
+++ b/include/hw/intc/arm_gicv3_common.h
@@ -38,7 +38,12 @@
 
 #define GICV3_LPI_INTID_START 8192
 
+/*
+ * The redistributor in GICv3 has two 64KB frames per CPU; in
+ * GICv4 it has four 64KB frames per CPU.
+ */
 #define GICV3_REDIST_SIZE 0x20000
+#define GICV4_REDIST_SIZE 0x40000
 
 /* Number of SGI target-list bits */
 #define GICV3_TARGETLIST_BITS 16
@@ -174,6 +179,9 @@ struct GICv3CPUState {
     uint32_t gicr_igrpmodr0;
     uint32_t gicr_nsacr;
     uint8_t gicr_ipriorityr[GIC_INTERNAL];
+    /* VLPI_base page registers */
+    uint64_t gicr_vpropbaser;
+    uint64_t gicr_vpendbaser;
 
     /* CPU interface */
     uint64_t icc_sre_el1;
@@ -211,6 +219,9 @@ struct GICv3CPUState {
      */
     PendingIrq hpplpi;
 
+    /* Cached information recalculated from vLPI tables in guest memory */
+    PendingIrq hppvlpi;
+
     /* This is temporary working state, to avoid a malloc in gicv3_update() */
     bool seenbetter;
 };
@@ -272,6 +283,8 @@ struct GICv3State {
     uint32_t gicd_nsacr[DIV_ROUND_UP(GICV3_MAXIRQ, 16)];
 
     GICv3CPUState *cpu;
+    /* List of all ITSes connected to this GIC */
+    GPtrArray *itslist;
 };
 
 #define GICV3_BITMAP_ACCESSORS(BMP)                                     \
diff --git a/include/hw/intc/arm_gicv3_its_common.h b/include/hw/intc/arm_gicv3_its_common.h
index 0f130494dd..a11a0f6654 100644
--- a/include/hw/intc/arm_gicv3_its_common.h
+++ b/include/hw/intc/arm_gicv3_its_common.h
@@ -78,6 +78,7 @@ struct GICv3ITSState {
 
     TableDesc  dt;
     TableDesc  ct;
+    TableDesc  vpet;
     CmdQDesc   cq;
 
     Error *migration_blocker;
@@ -88,6 +89,24 @@ typedef struct GICv3ITSState GICv3ITSState;
 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops,
                    const MemoryRegionOps *tops);
 
+/*
+ * The ITS should call this when it is realized to add itself
+ * to its GIC's list of connected ITSes.
+ */
+static inline void gicv3_add_its(GICv3State *s, DeviceState *its)
+{
+    g_ptr_array_add(s->itslist, its);
+}
+
+/*
+ * The ITS can use this for operations that must be performed on
+ * every ITS connected to the same GIC that it is
+ */
+static inline void gicv3_foreach_its(GICv3State *s, GFunc func, void *opaque)
+{
+    g_ptr_array_foreach(s->itslist, func, opaque);
+}
+
 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
 DECLARE_OBJ_CHECKERS(GICv3ITSState, GICv3ITSCommonClass,
diff --git a/include/hw/intc/nios2_vic.h b/include/hw/intc/nios2_vic.h
new file mode 100644
index 0000000000..af1517a967
--- /dev/null
+++ b/include/hw/intc/nios2_vic.h
@@ -0,0 +1,64 @@
+/*
+ * Vectored Interrupt Controller for nios2 processor
+ *
+ * Copyright (c) 2022 Neuroblade
+ *
+ * Interface:
+ * QOM property "cpu": link to the Nios2 CPU (must be set)
+ * Unnamed GPIO inputs 0..NIOS2_VIC_MAX_IRQ-1: input IRQ lines
+ * IRQ should be connected to nios2 IRQ0.
+ *
+ * Reference: "Embedded Peripherals IP User Guide
+ *             for Intel® Quartus® Prime Design Suite: 21.4"
+ * Chapter 38 "Vectored Interrupt Controller Core"
+ * See: https://www.intel.com/content/www/us/en/docs/programmable/683130/21-4/vectored-interrupt-controller-core.html
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HW_INTC_NIOS2_VIC
+#define HW_INTC_NIOS2_VIC
+
+#define TYPE_NIOS2_VIC "nios2-vic"
+OBJECT_DECLARE_SIMPLE_TYPE(Nios2VIC, NIOS2_VIC)
+
+#define NIOS2_VIC_MAX_IRQ 32
+
+struct Nios2VIC {
+    /*< private >*/
+    SysBusDevice parent_obj;
+
+    /*< public >*/
+    qemu_irq output_int;
+
+    /* properties */
+    CPUState *cpu;
+    MemoryRegion csr;
+
+    uint32_t int_config[NIOS2_VIC_MAX_IRQ];
+    uint32_t vic_config;
+    uint32_t int_raw_status;
+    uint32_t int_enable;
+    uint32_t sw_int;
+    uint32_t vic_status;
+    uint32_t vec_tbl_base;
+    uint32_t vec_tbl_addr;
+};
+
+#endif /* HW_INTC_NIOS2_VIC */
diff --git a/include/hw/intc/riscv_aclint.h b/include/hw/intc/riscv_aclint.h
index 229bd08d25..26d4048687 100644
--- a/include/hw/intc/riscv_aclint.h
+++ b/include/hw/intc/riscv_aclint.h
@@ -31,6 +31,7 @@
 typedef struct RISCVAclintMTimerState {
     /*< private >*/
     SysBusDevice parent_obj;
+    uint64_t time_delta;
 
     /*< public >*/
     MemoryRegion mmio;
diff --git a/include/hw/riscv/boot.h b/include/hw/riscv/boot.h
index d937c5c224..d2db29721a 100644
--- a/include/hw/riscv/boot.h
+++ b/include/hw/riscv/boot.h
@@ -46,12 +46,12 @@ target_ulong riscv_load_kernel(const char *kernel_filename,
                                symbol_fn_t sym_cb);
 hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size,
                          uint64_t kernel_entry, hwaddr *start);
-uint32_t riscv_load_fdt(hwaddr dram_start, uint64_t dram_size, void *fdt);
+uint64_t riscv_load_fdt(hwaddr dram_start, uint64_t dram_size, void *fdt);
 void riscv_setup_rom_reset_vec(MachineState *machine, RISCVHartArrayState *harts,
                                hwaddr saddr,
                                hwaddr rom_base, hwaddr rom_size,
                                uint64_t kernel_entry,
-                               uint32_t fdt_load_addr, void *fdt);
+                               uint64_t fdt_load_addr, void *fdt);
 void riscv_rom_copy_firmware_info(MachineState *machine, hwaddr rom_base,
                                   hwaddr rom_size,
                                   uint32_t reset_vec_size,
diff --git a/include/hw/riscv/opentitan.h b/include/hw/riscv/opentitan.h
index 00da9ded43..68892cd8e5 100644
--- a/include/hw/riscv/opentitan.h
+++ b/include/hw/riscv/opentitan.h
@@ -23,11 +23,18 @@
 #include "hw/intc/sifive_plic.h"
 #include "hw/char/ibex_uart.h"
 #include "hw/timer/ibex_timer.h"
+#include "hw/ssi/ibex_spi_host.h"
 #include "qom/object.h"
 
 #define TYPE_RISCV_IBEX_SOC "riscv.lowrisc.ibex.soc"
 OBJECT_DECLARE_SIMPLE_TYPE(LowRISCIbexSoCState, RISCV_IBEX_SOC)
 
+enum {
+    OPENTITAN_SPI_HOST0,
+    OPENTITAN_SPI_HOST1,
+    OPENTITAN_NUM_SPI_HOSTS,
+};
+
 struct LowRISCIbexSoCState {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -37,6 +44,7 @@ struct LowRISCIbexSoCState {
     SiFivePLICState plic;
     IbexUartState uart;
     IbexTimerState timer;
+    IbexSPIHostState spi_host[OPENTITAN_NUM_SPI_HOSTS];
 
     MemoryRegion flash_mem;
     MemoryRegion rom;
@@ -89,15 +97,19 @@ enum {
 };
 
 enum {
-    IBEX_TIMER_TIMEREXPIRED0_0 = 126,
-    IBEX_UART0_RX_PARITY_ERR_IRQ = 8,
-    IBEX_UART0_RX_TIMEOUT_IRQ = 7,
-    IBEX_UART0_RX_BREAK_ERR_IRQ = 6,
-    IBEX_UART0_RX_FRAME_ERR_IRQ = 5,
-    IBEX_UART0_RX_OVERFLOW_IRQ = 4,
-    IBEX_UART0_TX_EMPTY_IRQ = 3,
-    IBEX_UART0_RX_WATERMARK_IRQ = 2,
-    IBEX_UART0_TX_WATERMARK_IRQ = 1,
+    IBEX_UART0_TX_WATERMARK_IRQ   = 1,
+    IBEX_UART0_RX_WATERMARK_IRQ   = 2,
+    IBEX_UART0_TX_EMPTY_IRQ       = 3,
+    IBEX_UART0_RX_OVERFLOW_IRQ    = 4,
+    IBEX_UART0_RX_FRAME_ERR_IRQ   = 5,
+    IBEX_UART0_RX_BREAK_ERR_IRQ   = 6,
+    IBEX_UART0_RX_TIMEOUT_IRQ     = 7,
+    IBEX_UART0_RX_PARITY_ERR_IRQ  = 8,
+    IBEX_TIMER_TIMEREXPIRED0_0    = 126,
+    IBEX_SPI_HOST0_ERR_IRQ        = 150,
+    IBEX_SPI_HOST0_SPI_EVENT_IRQ  = 151,
+    IBEX_SPI_HOST1_ERR_IRQ        = 152,
+    IBEX_SPI_HOST1_SPI_EVENT_IRQ  = 153,
 };
 
 #endif
diff --git a/include/hw/ssi/ibex_spi_host.h b/include/hw/ssi/ibex_spi_host.h
new file mode 100644
index 0000000000..3fedcb6805
--- /dev/null
+++ b/include/hw/ssi/ibex_spi_host.h
@@ -0,0 +1,94 @@
+
+/*
+ * QEMU model of the Ibex SPI Controller
+ * SPEC Reference: https://docs.opentitan.org/hw/ip/spi_host/doc/
+ *
+ * Copyright (C) 2022 Western Digital
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef IBEX_SPI_HOST_H
+#define IBEX_SPI_HOST_H
+
+#include "hw/sysbus.h"
+#include "hw/hw.h"
+#include "hw/ssi/ssi.h"
+#include "qemu/fifo8.h"
+#include "qom/object.h"
+#include "hw/registerfields.h"
+#include "qemu/timer.h"
+
+#define TYPE_IBEX_SPI_HOST "ibex-spi"
+#define IBEX_SPI_HOST(obj) \
+    OBJECT_CHECK(IbexSPIHostState, (obj), TYPE_IBEX_SPI_HOST)
+
+/* SPI Registers */
+#define IBEX_SPI_HOST_INTR_STATE         (0x00 / 4)  /* rw */
+#define IBEX_SPI_HOST_INTR_ENABLE        (0x04 / 4)  /* rw */
+#define IBEX_SPI_HOST_INTR_TEST          (0x08 / 4)  /* wo */
+#define IBEX_SPI_HOST_ALERT_TEST         (0x0c / 4)  /* wo */
+#define IBEX_SPI_HOST_CONTROL            (0x10 / 4)  /* rw */
+#define IBEX_SPI_HOST_STATUS             (0x14 / 4)  /* ro */
+#define IBEX_SPI_HOST_CONFIGOPTS         (0x18 / 4)  /* rw */
+#define IBEX_SPI_HOST_CSID               (0x1c / 4)  /* rw */
+#define IBEX_SPI_HOST_COMMAND            (0x20 / 4)  /* wo */
+/* RX/TX Modelled by FIFO */
+#define IBEX_SPI_HOST_RXDATA             (0x24 / 4)
+#define IBEX_SPI_HOST_TXDATA             (0x28 / 4)
+
+#define IBEX_SPI_HOST_ERROR_ENABLE       (0x2c / 4)  /* rw */
+#define IBEX_SPI_HOST_ERROR_STATUS       (0x30 / 4)  /* rw */
+#define IBEX_SPI_HOST_EVENT_ENABLE       (0x34 / 4)  /* rw */
+
+/* FIFO Len in Bytes */
+#define IBEX_SPI_HOST_TXFIFO_LEN         288
+#define IBEX_SPI_HOST_RXFIFO_LEN         256
+
+/*  Max Register (Based on addr) */
+#define IBEX_SPI_HOST_MAX_REGS           (IBEX_SPI_HOST_EVENT_ENABLE + 1)
+
+/* MISC */
+#define TX_INTERRUPT_TRIGGER_DELAY_NS    100
+#define BIDIRECTIONAL_TRANSFER           3
+
+typedef struct {
+    /* <private> */
+    SysBusDevice parent_obj;
+
+    /* <public> */
+    MemoryRegion mmio;
+    uint32_t regs[IBEX_SPI_HOST_MAX_REGS];
+    /* Multi-reg that sets config opts per CS */
+    uint32_t *config_opts;
+    Fifo8 rx_fifo;
+    Fifo8 tx_fifo;
+    QEMUTimer *fifo_trigger_handle;
+
+    qemu_irq event;
+    qemu_irq host_err;
+    uint32_t num_cs;
+    qemu_irq *cs_lines;
+    SSIBus *ssi;
+
+    /* Used to track the init status, for replicating TXDATA ghost writes */
+    bool init_status;
+} IbexSPIHostState;
+
+#endif