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-rw-r--r--hw/grlib_irqmp.c385
1 files changed, 0 insertions, 385 deletions
diff --git a/hw/grlib_irqmp.c b/hw/grlib_irqmp.c
deleted file mode 100644
index 7ee469d191..0000000000
--- a/hw/grlib_irqmp.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * QEMU GRLIB IRQMP Emulator
- *
- * (Multiprocessor and extended interrupt not supported)
- *
- * Copyright (c) 2010-2011 AdaCore
- *
- * 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.
- */
-
-#include "hw/sysbus.h"
-#include "cpu.h"
-
-#include "hw/grlib.h"
-
-#include "trace.h"
-
-#define IRQMP_MAX_CPU 16
-#define IRQMP_REG_SIZE 256 /* Size of memory mapped registers */
-
-/* Memory mapped register offsets */
-#define LEVEL_OFFSET 0x00
-#define PENDING_OFFSET 0x04
-#define FORCE0_OFFSET 0x08
-#define CLEAR_OFFSET 0x0C
-#define MP_STATUS_OFFSET 0x10
-#define BROADCAST_OFFSET 0x14
-#define MASK_OFFSET 0x40
-#define FORCE_OFFSET 0x80
-#define EXTENDED_OFFSET 0xC0
-
-typedef struct IRQMPState IRQMPState;
-
-typedef struct IRQMP {
- SysBusDevice busdev;
- MemoryRegion iomem;
-
- void *set_pil_in;
- void *set_pil_in_opaque;
-
- IRQMPState *state;
-} IRQMP;
-
-struct IRQMPState {
- uint32_t level;
- uint32_t pending;
- uint32_t clear;
- uint32_t broadcast;
-
- uint32_t mask[IRQMP_MAX_CPU];
- uint32_t force[IRQMP_MAX_CPU];
- uint32_t extended[IRQMP_MAX_CPU];
-
- IRQMP *parent;
-};
-
-static void grlib_irqmp_check_irqs(IRQMPState *state)
-{
- uint32_t pend = 0;
- uint32_t level0 = 0;
- uint32_t level1 = 0;
- set_pil_in_fn set_pil_in;
-
- assert(state != NULL);
- assert(state->parent != NULL);
-
- /* IRQ for CPU 0 (no SMP support) */
- pend = (state->pending | state->force[0])
- & state->mask[0];
-
- level0 = pend & ~state->level;
- level1 = pend & state->level;
-
- trace_grlib_irqmp_check_irqs(state->pending, state->force[0],
- state->mask[0], level1, level0);
-
- set_pil_in = (set_pil_in_fn)state->parent->set_pil_in;
-
- /* Trigger level1 interrupt first and level0 if there is no level1 */
- if (level1 != 0) {
- set_pil_in(state->parent->set_pil_in_opaque, level1);
- } else {
- set_pil_in(state->parent->set_pil_in_opaque, level0);
- }
-}
-
-void grlib_irqmp_ack(DeviceState *dev, int intno)
-{
- SysBusDevice *sdev;
- IRQMP *irqmp;
- IRQMPState *state;
- uint32_t mask;
-
- assert(dev != NULL);
-
- sdev = SYS_BUS_DEVICE(dev);
- assert(sdev != NULL);
-
- irqmp = FROM_SYSBUS(typeof(*irqmp), sdev);
- assert(irqmp != NULL);
-
- state = irqmp->state;
- assert(state != NULL);
-
- intno &= 15;
- mask = 1 << intno;
-
- trace_grlib_irqmp_ack(intno);
-
- /* Clear registers */
- state->pending &= ~mask;
- state->force[0] &= ~mask; /* Only CPU 0 (No SMP support) */
-
- grlib_irqmp_check_irqs(state);
-}
-
-void grlib_irqmp_set_irq(void *opaque, int irq, int level)
-{
- IRQMP *irqmp;
- IRQMPState *s;
- int i = 0;
-
- assert(opaque != NULL);
-
- irqmp = FROM_SYSBUS(typeof(*irqmp), SYS_BUS_DEVICE(opaque));
- assert(irqmp != NULL);
-
- s = irqmp->state;
- assert(s != NULL);
- assert(s->parent != NULL);
-
-
- if (level) {
- trace_grlib_irqmp_set_irq(irq);
-
- if (s->broadcast & 1 << irq) {
- /* Broadcasted IRQ */
- for (i = 0; i < IRQMP_MAX_CPU; i++) {
- s->force[i] |= 1 << irq;
- }
- } else {
- s->pending |= 1 << irq;
- }
- grlib_irqmp_check_irqs(s);
-
- }
-}
-
-static uint64_t grlib_irqmp_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- IRQMP *irqmp = opaque;
- IRQMPState *state;
-
- assert(irqmp != NULL);
- state = irqmp->state;
- assert(state != NULL);
-
- addr &= 0xff;
-
- /* global registers */
- switch (addr) {
- case LEVEL_OFFSET:
- return state->level;
-
- case PENDING_OFFSET:
- return state->pending;
-
- case FORCE0_OFFSET:
- /* This register is an "alias" for the force register of CPU 0 */
- return state->force[0];
-
- case CLEAR_OFFSET:
- case MP_STATUS_OFFSET:
- /* Always read as 0 */
- return 0;
-
- case BROADCAST_OFFSET:
- return state->broadcast;
-
- default:
- break;
- }
-
- /* mask registers */
- if (addr >= MASK_OFFSET && addr < FORCE_OFFSET) {
- int cpu = (addr - MASK_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- return state->mask[cpu];
- }
-
- /* force registers */
- if (addr >= FORCE_OFFSET && addr < EXTENDED_OFFSET) {
- int cpu = (addr - FORCE_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- return state->force[cpu];
- }
-
- /* extended (not supported) */
- if (addr >= EXTENDED_OFFSET && addr < IRQMP_REG_SIZE) {
- int cpu = (addr - EXTENDED_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- return state->extended[cpu];
- }
-
- trace_grlib_irqmp_readl_unknown(addr);
- return 0;
-}
-
-static void grlib_irqmp_write(void *opaque, hwaddr addr,
- uint64_t value, unsigned size)
-{
- IRQMP *irqmp = opaque;
- IRQMPState *state;
-
- assert(irqmp != NULL);
- state = irqmp->state;
- assert(state != NULL);
-
- addr &= 0xff;
-
- /* global registers */
- switch (addr) {
- case LEVEL_OFFSET:
- value &= 0xFFFF << 1; /* clean up the value */
- state->level = value;
- return;
-
- case PENDING_OFFSET:
- /* Read Only */
- return;
-
- case FORCE0_OFFSET:
- /* This register is an "alias" for the force register of CPU 0 */
-
- value &= 0xFFFE; /* clean up the value */
- state->force[0] = value;
- grlib_irqmp_check_irqs(irqmp->state);
- return;
-
- case CLEAR_OFFSET:
- value &= ~1; /* clean up the value */
- state->pending &= ~value;
- return;
-
- case MP_STATUS_OFFSET:
- /* Read Only (no SMP support) */
- return;
-
- case BROADCAST_OFFSET:
- value &= 0xFFFE; /* clean up the value */
- state->broadcast = value;
- return;
-
- default:
- break;
- }
-
- /* mask registers */
- if (addr >= MASK_OFFSET && addr < FORCE_OFFSET) {
- int cpu = (addr - MASK_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- value &= ~1; /* clean up the value */
- state->mask[cpu] = value;
- grlib_irqmp_check_irqs(irqmp->state);
- return;
- }
-
- /* force registers */
- if (addr >= FORCE_OFFSET && addr < EXTENDED_OFFSET) {
- int cpu = (addr - FORCE_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- uint32_t force = value & 0xFFFE;
- uint32_t clear = (value >> 16) & 0xFFFE;
- uint32_t old = state->force[cpu];
-
- state->force[cpu] = (old | force) & ~clear;
- grlib_irqmp_check_irqs(irqmp->state);
- return;
- }
-
- /* extended (not supported) */
- if (addr >= EXTENDED_OFFSET && addr < IRQMP_REG_SIZE) {
- int cpu = (addr - EXTENDED_OFFSET) / 4;
- assert(cpu >= 0 && cpu < IRQMP_MAX_CPU);
-
- value &= 0xF; /* clean up the value */
- state->extended[cpu] = value;
- return;
- }
-
- trace_grlib_irqmp_writel_unknown(addr, value);
-}
-
-static const MemoryRegionOps grlib_irqmp_ops = {
- .read = grlib_irqmp_read,
- .write = grlib_irqmp_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 4,
- },
-};
-
-static void grlib_irqmp_reset(DeviceState *d)
-{
- IRQMP *irqmp = container_of(d, IRQMP, busdev.qdev);
- assert(irqmp != NULL);
- assert(irqmp->state != NULL);
-
- memset(irqmp->state, 0, sizeof *irqmp->state);
- irqmp->state->parent = irqmp;
-}
-
-static int grlib_irqmp_init(SysBusDevice *dev)
-{
- IRQMP *irqmp = FROM_SYSBUS(typeof(*irqmp), dev);
-
- assert(irqmp != NULL);
-
- /* Check parameters */
- if (irqmp->set_pil_in == NULL) {
- return -1;
- }
-
- memory_region_init_io(&irqmp->iomem, &grlib_irqmp_ops, irqmp,
- "irqmp", IRQMP_REG_SIZE);
-
- irqmp->state = g_malloc0(sizeof *irqmp->state);
-
- sysbus_init_mmio(dev, &irqmp->iomem);
-
- return 0;
-}
-
-static Property grlib_irqmp_properties[] = {
- DEFINE_PROP_PTR("set_pil_in", IRQMP, set_pil_in),
- DEFINE_PROP_PTR("set_pil_in_opaque", IRQMP, set_pil_in_opaque),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void grlib_irqmp_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = grlib_irqmp_init;
- dc->reset = grlib_irqmp_reset;
- dc->props = grlib_irqmp_properties;
-}
-
-static const TypeInfo grlib_irqmp_info = {
- .name = "grlib,irqmp",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(IRQMP),
- .class_init = grlib_irqmp_class_init,
-};
-
-static void grlib_irqmp_register_types(void)
-{
- type_register_static(&grlib_irqmp_info);
-}
-
-type_init(grlib_irqmp_register_types)
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-25 00:40:11 +0000