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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/intc/aspeed_vic.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/intc/aspeed_vic.c')
-rw-r--r--qemu/hw/intc/aspeed_vic.c339
1 files changed, 0 insertions, 339 deletions
diff --git a/qemu/hw/intc/aspeed_vic.c b/qemu/hw/intc/aspeed_vic.c
deleted file mode 100644
index 19a0ff748..000000000
--- a/qemu/hw/intc/aspeed_vic.c
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * ASPEED Interrupt Controller (New)
- *
- * Andrew Jeffery <andrew@aj.id.au>
- *
- * Copyright 2015, 2016 IBM Corp.
- *
- * This code is licensed under the GPL version 2 or later. See
- * the COPYING file in the top-level directory.
- */
-
-/* The hardware exposes two register sets, a legacy set and a 'new' set. The
- * model implements the 'new' register set, and logs warnings on accesses to
- * the legacy IO space.
- *
- * The hardware uses 32bit registers to manage 51 IRQs, with low and high
- * registers for each conceptual register. The device model's implementation
- * uses 64bit data types to store both low and high register values (in the one
- * member), but must cope with access offset values in multiples of 4 passed to
- * the callbacks. As such the read() and write() implementations process the
- * provided offset to understand whether the access is requesting the lower or
- * upper 32 bits of the 64bit member.
- *
- * Additionally, the "Interrupt Enable", "Edge Status" and "Software Interrupt"
- * fields have separate "enable"/"status" and "clear" registers, where set bits
- * are written to one or the other to change state (avoiding a
- * read-modify-write sequence).
- */
-
-#include "qemu/osdep.h"
-#include <inttypes.h>
-#include "hw/intc/aspeed_vic.h"
-#include "qemu/bitops.h"
-#include "trace.h"
-
-#define AVIC_NEW_BASE_OFFSET 0x80
-
-#define AVIC_L_MASK 0xFFFFFFFFU
-#define AVIC_H_MASK 0x0007FFFFU
-#define AVIC_EVENT_W_MASK (0x78000ULL << 32)
-
-static void aspeed_vic_update(AspeedVICState *s)
-{
- uint64_t new = (s->raw & s->enable);
- uint64_t flags;
-
- flags = new & s->select;
- trace_aspeed_vic_update_fiq(!!flags);
- qemu_set_irq(s->fiq, !!flags);
-
- flags = new & ~s->select;
- trace_aspeed_vic_update_irq(!!flags);
- qemu_set_irq(s->irq, !!flags);
-}
-
-static void aspeed_vic_set_irq(void *opaque, int irq, int level)
-{
- uint64_t irq_mask;
- bool raise;
- AspeedVICState *s = (AspeedVICState *)opaque;
-
- if (irq > ASPEED_VIC_NR_IRQS) {
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Invalid interrupt number: %d\n",
- __func__, irq);
- return;
- }
-
- trace_aspeed_vic_set_irq(irq, level);
-
- irq_mask = BIT(irq);
- if (s->sense & irq_mask) {
- /* level-triggered */
- if (s->event & irq_mask) {
- /* high-sensitive */
- raise = level;
- } else {
- /* low-sensitive */
- raise = !level;
- }
- s->raw = deposit64(s->raw, irq, 1, raise);
- } else {
- uint64_t old_level = s->level & irq_mask;
-
- /* edge-triggered */
- if (s->dual_edge & irq_mask) {
- raise = (!!old_level) != (!!level);
- } else {
- if (s->event & irq_mask) {
- /* rising-sensitive */
- raise = !old_level && level;
- } else {
- /* falling-sensitive */
- raise = old_level && !level;
- }
- }
- if (raise) {
- s->raw = deposit64(s->raw, irq, 1, raise);
- }
- }
- s->level = deposit64(s->level, irq, 1, level);
- aspeed_vic_update(s);
-}
-
-static uint64_t aspeed_vic_read(void *opaque, hwaddr offset, unsigned size)
-{
- uint64_t val;
- const bool high = !!(offset & 0x4);
- hwaddr n_offset = (offset & ~0x4);
- AspeedVICState *s = (AspeedVICState *)opaque;
-
- if (offset < AVIC_NEW_BASE_OFFSET) {
- qemu_log_mask(LOG_UNIMP, "%s: Ignoring read from legacy registers "
- "at 0x%" HWADDR_PRIx "[%u]\n", __func__, offset, size);
- return 0;
- }
-
- n_offset -= AVIC_NEW_BASE_OFFSET;
-
- switch (n_offset) {
- case 0x0: /* IRQ Status */
- val = s->raw & ~s->select & s->enable;
- break;
- case 0x08: /* FIQ Status */
- val = s->raw & s->select & s->enable;
- break;
- case 0x10: /* Raw Interrupt Status */
- val = s->raw;
- break;
- case 0x18: /* Interrupt Selection */
- val = s->select;
- break;
- case 0x20: /* Interrupt Enable */
- val = s->enable;
- break;
- case 0x30: /* Software Interrupt */
- val = s->trigger;
- break;
- case 0x40: /* Interrupt Sensitivity */
- val = s->sense;
- break;
- case 0x48: /* Interrupt Both Edge Trigger Control */
- val = s->dual_edge;
- break;
- case 0x50: /* Interrupt Event */
- val = s->event;
- break;
- case 0x60: /* Edge Triggered Interrupt Status */
- val = s->raw & ~s->sense;
- break;
- /* Illegal */
- case 0x28: /* Interrupt Enable Clear */
- case 0x38: /* Software Interrupt Clear */
- case 0x58: /* Edge Triggered Interrupt Clear */
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Read of write-only register with offset 0x%"
- HWADDR_PRIx "\n", __func__, offset);
- val = 0;
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad register at offset 0x%" HWADDR_PRIx "\n",
- __func__, offset);
- val = 0;
- break;
- }
- if (high) {
- val = extract64(val, 32, 19);
- }
- trace_aspeed_vic_read(offset, size, val);
- return val;
-}
-
-static void aspeed_vic_write(void *opaque, hwaddr offset, uint64_t data,
- unsigned size)
-{
- const bool high = !!(offset & 0x4);
- hwaddr n_offset = (offset & ~0x4);
- AspeedVICState *s = (AspeedVICState *)opaque;
-
- if (offset < AVIC_NEW_BASE_OFFSET) {
- qemu_log_mask(LOG_UNIMP,
- "%s: Ignoring write to legacy registers at 0x%"
- HWADDR_PRIx "[%u] <- 0x%" PRIx64 "\n", __func__, offset,
- size, data);
- return;
- }
-
- n_offset -= AVIC_NEW_BASE_OFFSET;
- trace_aspeed_vic_write(offset, size, data);
-
- /* Given we have members using separate enable/clear registers, deposit64()
- * isn't quite the tool for the job. Instead, relocate the incoming bits to
- * the required bit offset based on the provided access address
- */
- if (high) {
- data &= AVIC_H_MASK;
- data <<= 32;
- } else {
- data &= AVIC_L_MASK;
- }
-
- switch (n_offset) {
- case 0x18: /* Interrupt Selection */
- /* Register has deposit64() semantics - overwrite requested 32 bits */
- if (high) {
- s->select &= AVIC_L_MASK;
- } else {
- s->select &= ((uint64_t) AVIC_H_MASK) << 32;
- }
- s->select |= data;
- break;
- case 0x20: /* Interrupt Enable */
- s->enable |= data;
- break;
- case 0x28: /* Interrupt Enable Clear */
- s->enable &= ~data;
- break;
- case 0x30: /* Software Interrupt */
- qemu_log_mask(LOG_UNIMP, "%s: Software interrupts unavailable. "
- "IRQs requested: 0x%016" PRIx64 "\n", __func__, data);
- break;
- case 0x38: /* Software Interrupt Clear */
- qemu_log_mask(LOG_UNIMP, "%s: Software interrupts unavailable. "
- "IRQs to be cleared: 0x%016" PRIx64 "\n", __func__, data);
- break;
- case 0x50: /* Interrupt Event */
- /* Register has deposit64() semantics - overwrite the top four valid
- * IRQ bits, as only the top four IRQs (GPIOs) can change their event
- * type */
- if (high) {
- s->event &= ~AVIC_EVENT_W_MASK;
- s->event |= (data & AVIC_EVENT_W_MASK);
- } else {
- qemu_log_mask(LOG_GUEST_ERROR,
- "Ignoring invalid write to interrupt event register");
- }
- break;
- case 0x58: /* Edge Triggered Interrupt Clear */
- s->raw &= ~(data & ~s->sense);
- break;
- case 0x00: /* IRQ Status */
- case 0x08: /* FIQ Status */
- case 0x10: /* Raw Interrupt Status */
- case 0x40: /* Interrupt Sensitivity */
- case 0x48: /* Interrupt Both Edge Trigger Control */
- case 0x60: /* Edge Triggered Interrupt Status */
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Write of read-only register with offset 0x%"
- HWADDR_PRIx "\n", __func__, offset);
- break;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "%s: Bad register at offset 0x%" HWADDR_PRIx "\n",
- __func__, offset);
- break;
- }
- aspeed_vic_update(s);
-}
-
-static const MemoryRegionOps aspeed_vic_ops = {
- .read = aspeed_vic_read,
- .write = aspeed_vic_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .valid.min_access_size = 4,
- .valid.max_access_size = 4,
- .valid.unaligned = false,
-};
-
-static void aspeed_vic_reset(DeviceState *dev)
-{
- AspeedVICState *s = ASPEED_VIC(dev);
-
- s->level = 0;
- s->raw = 0;
- s->select = 0;
- s->enable = 0;
- s->trigger = 0;
- s->sense = 0x1F07FFF8FFFFULL;
- s->dual_edge = 0xF800070000ULL;
- s->event = 0x5F07FFF8FFFFULL;
-}
-
-#define AVIC_IO_REGION_SIZE 0x20000
-
-static void aspeed_vic_realize(DeviceState *dev, Error **errp)
-{
- SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
- AspeedVICState *s = ASPEED_VIC(dev);
-
- memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_vic_ops, s,
- TYPE_ASPEED_VIC, AVIC_IO_REGION_SIZE);
-
- sysbus_init_mmio(sbd, &s->iomem);
-
- qdev_init_gpio_in(dev, aspeed_vic_set_irq, ASPEED_VIC_NR_IRQS);
- sysbus_init_irq(sbd, &s->irq);
- sysbus_init_irq(sbd, &s->fiq);
-}
-
-static const VMStateDescription vmstate_aspeed_vic = {
- .name = "aspeed.new-vic",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT64(level, AspeedVICState),
- VMSTATE_UINT64(raw, AspeedVICState),
- VMSTATE_UINT64(select, AspeedVICState),
- VMSTATE_UINT64(enable, AspeedVICState),
- VMSTATE_UINT64(trigger, AspeedVICState),
- VMSTATE_UINT64(sense, AspeedVICState),
- VMSTATE_UINT64(dual_edge, AspeedVICState),
- VMSTATE_UINT64(event, AspeedVICState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void aspeed_vic_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- dc->realize = aspeed_vic_realize;
- dc->reset = aspeed_vic_reset;
- dc->desc = "ASPEED Interrupt Controller (New)";
- dc->vmsd = &vmstate_aspeed_vic;
-}
-
-static const TypeInfo aspeed_vic_info = {
- .name = TYPE_ASPEED_VIC,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(AspeedVICState),
- .class_init = aspeed_vic_class_init,
-};
-
-static void aspeed_vic_register_types(void)
-{
- type_register_static(&aspeed_vic_info);
-}
-
-type_init(aspeed_vic_register_types);