hw: move target-independent files to subdirectories

This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 421 insertions, 0 deletions

diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c
new file mode 100644
index 0000000..00b66b4
--- /dev/null
+++ b/hw/dma/pl080.c
@@ -0,0 +1,421 @@
+/*
+ * Arm PrimeCell PL080/PL081 DMA controller
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licensed under the GPL.
+ */
+
+#include "hw/sysbus.h"
+
+#define PL080_MAX_CHANNELS 8
+#define PL080_CONF_E    0x1
+#define PL080_CONF_M1   0x2
+#define PL080_CONF_M2   0x4
+
+#define PL080_CCONF_H   0x40000
+#define PL080_CCONF_A   0x20000
+#define PL080_CCONF_L   0x10000
+#define PL080_CCONF_ITC 0x08000
+#define PL080_CCONF_IE  0x04000
+#define PL080_CCONF_E   0x00001
+
+#define PL080_CCTRL_I   0x80000000
+#define PL080_CCTRL_DI  0x08000000
+#define PL080_CCTRL_SI  0x04000000
+#define PL080_CCTRL_D   0x02000000
+#define PL080_CCTRL_S   0x01000000
+
+typedef struct {
+    uint32_t src;
+    uint32_t dest;
+    uint32_t lli;
+    uint32_t ctrl;
+    uint32_t conf;
+} pl080_channel;
+
+typedef struct {
+    SysBusDevice busdev;
+    MemoryRegion iomem;
+    uint8_t tc_int;
+    uint8_t tc_mask;
+    uint8_t err_int;
+    uint8_t err_mask;
+    uint32_t conf;
+    uint32_t sync;
+    uint32_t req_single;
+    uint32_t req_burst;
+    pl080_channel chan[PL080_MAX_CHANNELS];
+    int nchannels;
+    /* Flag to avoid recursive DMA invocations.  */
+    int running;
+    qemu_irq irq;
+} pl080_state;
+
+static const VMStateDescription vmstate_pl080_channel = {
+    .name = "pl080_channel",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32(src, pl080_channel),
+        VMSTATE_UINT32(dest, pl080_channel),
+        VMSTATE_UINT32(lli, pl080_channel),
+        VMSTATE_UINT32(ctrl, pl080_channel),
+        VMSTATE_UINT32(conf, pl080_channel),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const VMStateDescription vmstate_pl080 = {
+    .name = "pl080",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT8(tc_int, pl080_state),
+        VMSTATE_UINT8(tc_mask, pl080_state),
+        VMSTATE_UINT8(err_int, pl080_state),
+        VMSTATE_UINT8(err_mask, pl080_state),
+        VMSTATE_UINT32(conf, pl080_state),
+        VMSTATE_UINT32(sync, pl080_state),
+        VMSTATE_UINT32(req_single, pl080_state),
+        VMSTATE_UINT32(req_burst, pl080_state),
+        VMSTATE_UINT8(tc_int, pl080_state),
+        VMSTATE_UINT8(tc_int, pl080_state),
+        VMSTATE_UINT8(tc_int, pl080_state),
+        VMSTATE_STRUCT_ARRAY(chan, pl080_state, PL080_MAX_CHANNELS,
+                             1, vmstate_pl080_channel, pl080_channel),
+        VMSTATE_INT32(running, pl080_state),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const unsigned char pl080_id[] =
+{ 0x80, 0x10, 0x04, 0x0a, 0x0d, 0xf0, 0x05, 0xb1 };
+
+static const unsigned char pl081_id[] =
+{ 0x81, 0x10, 0x04, 0x0a, 0x0d, 0xf0, 0x05, 0xb1 };
+
+static void pl080_update(pl080_state *s)
+{
+    if ((s->tc_int & s->tc_mask)
+            || (s->err_int & s->err_mask))
+        qemu_irq_raise(s->irq);
+    else
+        qemu_irq_lower(s->irq);
+}
+
+static void pl080_run(pl080_state *s)
+{
+    int c;
+    int flow;
+    pl080_channel *ch;
+    int swidth;
+    int dwidth;
+    int xsize;
+    int n;
+    int src_id;
+    int dest_id;
+    int size;
+    uint8_t buff[4];
+    uint32_t req;
+
+    s->tc_mask = 0;
+    for (c = 0; c < s->nchannels; c++) {
+        if (s->chan[c].conf & PL080_CCONF_ITC)
+            s->tc_mask |= 1 << c;
+        if (s->chan[c].conf & PL080_CCONF_IE)
+            s->err_mask |= 1 << c;
+    }
+
+    if ((s->conf & PL080_CONF_E) == 0)
+        return;
+
+hw_error("DMA active\n");
+    /* If we are already in the middle of a DMA operation then indicate that
+       there may be new DMA requests and return immediately.  */
+    if (s->running) {
+        s->running++;
+        return;
+    }
+    s->running = 1;
+    while (s->running) {
+        for (c = 0; c < s->nchannels; c++) {
+            ch = &s->chan[c];
+again:
+            /* Test if thiws channel has any pending DMA requests.  */
+            if ((ch->conf & (PL080_CCONF_H | PL080_CCONF_E))
+                    != PL080_CCONF_E)
+                continue;
+            flow = (ch->conf >> 11) & 7;
+            if (flow >= 4) {
+                hw_error(
+                    "pl080_run: Peripheral flow control not implemented\n");
+            }
+            src_id = (ch->conf >> 1) & 0x1f;
+            dest_id = (ch->conf >> 6) & 0x1f;
+            size = ch->ctrl & 0xfff;
+            req = s->req_single | s->req_burst;
+            switch (flow) {
+            case 0:
+                break;
+            case 1:
+                if ((req & (1u << dest_id)) == 0)
+                    size = 0;
+                break;
+            case 2:
+                if ((req & (1u << src_id)) == 0)
+                    size = 0;
+                break;
+            case 3:
+                if ((req & (1u << src_id)) == 0
+                        || (req & (1u << dest_id)) == 0)
+                    size = 0;
+                break;
+            }
+            if (!size)
+                continue;
+
+            /* Transfer one element.  */
+            /* ??? Should transfer multiple elements for a burst request.  */
+            /* ??? Unclear what the proper behavior is when source and
+               destination widths are different.  */
+            swidth = 1 << ((ch->ctrl >> 18) & 7);
+            dwidth = 1 << ((ch->ctrl >> 21) & 7);
+            for (n = 0; n < dwidth; n+= swidth) {
+                cpu_physical_memory_read(ch->src, buff + n, swidth);
+                if (ch->ctrl & PL080_CCTRL_SI)
+                    ch->src += swidth;
+            }
+            xsize = (dwidth < swidth) ? swidth : dwidth;
+            /* ??? This may pad the value incorrectly for dwidth < 32.  */
+            for (n = 0; n < xsize; n += dwidth) {
+                cpu_physical_memory_write(ch->dest + n, buff + n, dwidth);
+                if (ch->ctrl & PL080_CCTRL_DI)
+                    ch->dest += swidth;
+            }
+
+            size--;
+            ch->ctrl = (ch->ctrl & 0xfffff000) | size;
+            if (size == 0) {
+                /* Transfer complete.  */
+                if (ch->lli) {
+                    ch->src = ldl_le_phys(ch->lli);
+                    ch->dest = ldl_le_phys(ch->lli + 4);
+                    ch->ctrl = ldl_le_phys(ch->lli + 12);
+                    ch->lli = ldl_le_phys(ch->lli + 8);
+                } else {
+                    ch->conf &= ~PL080_CCONF_E;
+                }
+                if (ch->ctrl & PL080_CCTRL_I) {
+                    s->tc_int |= 1 << c;
+                }
+            }
+            goto again;
+        }
+        if (--s->running)
+            s->running = 1;
+    }
+}
+
+static uint64_t pl080_read(void *opaque, hwaddr offset,
+                           unsigned size)
+{
+    pl080_state *s = (pl080_state *)opaque;
+    uint32_t i;
+    uint32_t mask;
+
+    if (offset >= 0xfe0 && offset < 0x1000) {
+        if (s->nchannels == 8) {
+            return pl080_id[(offset - 0xfe0) >> 2];
+        } else {
+            return pl081_id[(offset - 0xfe0) >> 2];
+        }
+    }
+    if (offset >= 0x100 && offset < 0x200) {
+        i = (offset & 0xe0) >> 5;
+        if (i >= s->nchannels)
+            goto bad_offset;
+        switch (offset >> 2) {
+        case 0: /* SrcAddr */
+            return s->chan[i].src;
+        case 1: /* DestAddr */
+            return s->chan[i].dest;
+        case 2: /* LLI */
+            return s->chan[i].lli;
+        case 3: /* Control */
+            return s->chan[i].ctrl;
+        case 4: /* Configuration */
+            return s->chan[i].conf;
+        default:
+            goto bad_offset;
+        }
+    }
+    switch (offset >> 2) {
+    case 0: /* IntStatus */
+        return (s->tc_int & s->tc_mask) | (s->err_int & s->err_mask);
+    case 1: /* IntTCStatus */
+        return (s->tc_int & s->tc_mask);
+    case 3: /* IntErrorStatus */
+        return (s->err_int & s->err_mask);
+    case 5: /* RawIntTCStatus */
+        return s->tc_int;
+    case 6: /* RawIntErrorStatus */
+        return s->err_int;
+    case 7: /* EnbldChns */
+        mask = 0;
+        for (i = 0; i < s->nchannels; i++) {
+            if (s->chan[i].conf & PL080_CCONF_E)
+                mask |= 1 << i;
+        }
+        return mask;
+    case 8: /* SoftBReq */
+    case 9: /* SoftSReq */
+    case 10: /* SoftLBReq */
+    case 11: /* SoftLSReq */
+        /* ??? Implement these. */
+        return 0;
+    case 12: /* Configuration */
+        return s->conf;
+    case 13: /* Sync */
+        return s->sync;
+    default:
+    bad_offset:
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "pl080_read: Bad offset %x\n", (int)offset);
+        return 0;
+    }
+}
+
+static void pl080_write(void *opaque, hwaddr offset,
+                        uint64_t value, unsigned size)
+{
+    pl080_state *s = (pl080_state *)opaque;
+    int i;
+
+    if (offset >= 0x100 && offset < 0x200) {
+        i = (offset & 0xe0) >> 5;
+        if (i >= s->nchannels)
+            goto bad_offset;
+        switch (offset >> 2) {
+        case 0: /* SrcAddr */
+            s->chan[i].src = value;
+            break;
+        case 1: /* DestAddr */
+            s->chan[i].dest = value;
+            break;
+        case 2: /* LLI */
+            s->chan[i].lli = value;
+            break;
+        case 3: /* Control */
+            s->chan[i].ctrl = value;
+            break;
+        case 4: /* Configuration */
+            s->chan[i].conf = value;
+            pl080_run(s);
+            break;
+        }
+    }
+    switch (offset >> 2) {
+    case 2: /* IntTCClear */
+        s->tc_int &= ~value;
+        break;
+    case 4: /* IntErrorClear */
+        s->err_int &= ~value;
+        break;
+    case 8: /* SoftBReq */
+    case 9: /* SoftSReq */
+    case 10: /* SoftLBReq */
+    case 11: /* SoftLSReq */
+        /* ??? Implement these.  */
+        qemu_log_mask(LOG_UNIMP, "pl080_write: Soft DMA not implemented\n");
+        break;
+    case 12: /* Configuration */
+        s->conf = value;
+        if (s->conf & (PL080_CONF_M1 | PL080_CONF_M1)) {
+            qemu_log_mask(LOG_UNIMP,
+                          "pl080_write: Big-endian DMA not implemented\n");
+        }
+        pl080_run(s);
+        break;
+    case 13: /* Sync */
+        s->sync = value;
+        break;
+    default:
+    bad_offset:
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "pl080_write: Bad offset %x\n", (int)offset);
+    }
+    pl080_update(s);
+}
+
+static const MemoryRegionOps pl080_ops = {
+    .read = pl080_read,
+    .write = pl080_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int pl08x_init(SysBusDevice *dev, int nchannels)
+{
+    pl080_state *s = FROM_SYSBUS(pl080_state, dev);
+
+    memory_region_init_io(&s->iomem, &pl080_ops, s, "pl080", 0x1000);
+    sysbus_init_mmio(dev, &s->iomem);
+    sysbus_init_irq(dev, &s->irq);
+    s->nchannels = nchannels;
+    return 0;
+}
+
+static int pl080_init(SysBusDevice *dev)
+{
+    return pl08x_init(dev, 8);
+}
+
+static int pl081_init(SysBusDevice *dev)
+{
+    return pl08x_init(dev, 2);
+}
+
+static void pl080_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+    k->init = pl080_init;
+    dc->no_user = 1;
+    dc->vmsd = &vmstate_pl080;
+}
+
+static const TypeInfo pl080_info = {
+    .name          = "pl080",
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(pl080_state),
+    .class_init    = pl080_class_init,
+};
+
+static void pl081_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+    k->init = pl081_init;
+    dc->no_user = 1;
+    dc->vmsd = &vmstate_pl080;
+}
+
+static const TypeInfo pl081_info = {
+    .name          = "pl081",
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(pl080_state),
+    .class_init    = pl081_class_init,
+};
+
+/* The PL080 and PL081 are the same except for the number of channels
+   they implement (8 and 2 respectively).  */
+static void pl080_register_types(void)
+{
+    type_register_static(&pl080_info);
+    type_register_static(&pl081_info);
+}
+
+type_init(pl080_register_types)