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, 0 insertions, 231 deletions

diff --git a/hw/ptimer.c b/hw/ptimer.c
deleted file mode 100644
index 4bc96c9fa2..0000000000
--- a/hw/ptimer.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * General purpose implementation of a simple periodic countdown timer.
- *
- * Copyright (c) 2007 CodeSourcery.
- *
- * This code is licensed under the GNU LGPL.
- */
-#include "hw/hw.h"
-#include "qemu/timer.h"
-#include "hw/ptimer.h"
-#include "qemu/host-utils.h"
-
-struct ptimer_state
-{
-    uint8_t enabled; /* 0 = disabled, 1 = periodic, 2 = oneshot.  */
-    uint64_t limit;
-    uint64_t delta;
-    uint32_t period_frac;
-    int64_t period;
-    int64_t last_event;
-    int64_t next_event;
-    QEMUBH *bh;
-    QEMUTimer *timer;
-};
-
-/* Use a bottom-half routine to avoid reentrancy issues.  */
-static void ptimer_trigger(ptimer_state *s)
-{
-    if (s->bh) {
-        qemu_bh_schedule(s->bh);
-    }
-}
-
-static void ptimer_reload(ptimer_state *s)
-{
-    if (s->delta == 0) {
-        ptimer_trigger(s);
-        s->delta = s->limit;
-    }
-    if (s->delta == 0 || s->period == 0) {
-        fprintf(stderr, "Timer with period zero, disabling\n");
-        s->enabled = 0;
-        return;
-    }
-
-    s->last_event = s->next_event;
-    s->next_event = s->last_event + s->delta * s->period;
-    if (s->period_frac) {
-        s->next_event += ((int64_t)s->period_frac * s->delta) >> 32;
-    }
-    qemu_mod_timer(s->timer, s->next_event);
-}
-
-static void ptimer_tick(void *opaque)
-{
-    ptimer_state *s = (ptimer_state *)opaque;
-    ptimer_trigger(s);
-    s->delta = 0;
-    if (s->enabled == 2) {
-        s->enabled = 0;
-    } else {
-        ptimer_reload(s);
-    }
-}
-
-uint64_t ptimer_get_count(ptimer_state *s)
-{
-    int64_t now;
-    uint64_t counter;
-
-    if (s->enabled) {
-        now = qemu_get_clock_ns(vm_clock);
-        /* Figure out the current counter value.  */
-        if (now - s->next_event > 0
-            || s->period == 0) {
-            /* Prevent timer underflowing if it should already have
-               triggered.  */
-            counter = 0;
-        } else {
-            uint64_t rem;
-            uint64_t div;
-            int clz1, clz2;
-            int shift;
-
-            /* We need to divide time by period, where time is stored in
-               rem (64-bit integer) and period is stored in period/period_frac
-               (64.32 fixed point).
-              
-               Doing full precision division is hard, so scale values and
-               do a 64-bit division.  The result should be rounded down,
-               so that the rounding error never causes the timer to go
-               backwards.
-            */
-
-            rem = s->next_event - now;
-            div = s->period;
-
-            clz1 = clz64(rem);
-            clz2 = clz64(div);
-            shift = clz1 < clz2 ? clz1 : clz2;
-
-            rem <<= shift;
-            div <<= shift;
-            if (shift >= 32) {
-                div |= ((uint64_t)s->period_frac << (shift - 32));
-            } else {
-                if (shift != 0)
-                    div |= (s->period_frac >> (32 - shift));
-                /* Look at remaining bits of period_frac and round div up if 
-                   necessary.  */
-                if ((uint32_t)(s->period_frac << shift))
-                    div += 1;
-            }
-            counter = rem / div;
-        }
-    } else {
-        counter = s->delta;
-    }
-    return counter;
-}
-
-void ptimer_set_count(ptimer_state *s, uint64_t count)
-{
-    s->delta = count;
-    if (s->enabled) {
-        s->next_event = qemu_get_clock_ns(vm_clock);
-        ptimer_reload(s);
-    }
-}
-
-void ptimer_run(ptimer_state *s, int oneshot)
-{
-    if (s->enabled) {
-        return;
-    }
-    if (s->period == 0) {
-        fprintf(stderr, "Timer with period zero, disabling\n");
-        return;
-    }
-    s->enabled = oneshot ? 2 : 1;
-    s->next_event = qemu_get_clock_ns(vm_clock);
-    ptimer_reload(s);
-}
-
-/* Pause a timer.  Note that this may cause it to "lose" time, even if it
-   is immediately restarted.  */
-void ptimer_stop(ptimer_state *s)
-{
-    if (!s->enabled)
-        return;
-
-    s->delta = ptimer_get_count(s);
-    qemu_del_timer(s->timer);
-    s->enabled = 0;
-}
-
-/* Set counter increment interval in nanoseconds.  */
-void ptimer_set_period(ptimer_state *s, int64_t period)
-{
-    s->period = period;
-    s->period_frac = 0;
-    if (s->enabled) {
-        s->next_event = qemu_get_clock_ns(vm_clock);
-        ptimer_reload(s);
-    }
-}
-
-/* Set counter frequency in Hz.  */
-void ptimer_set_freq(ptimer_state *s, uint32_t freq)
-{
-    s->period = 1000000000ll / freq;
-    s->period_frac = (1000000000ll << 32) / freq;
-    if (s->enabled) {
-        s->next_event = qemu_get_clock_ns(vm_clock);
-        ptimer_reload(s);
-    }
-}
-
-/* Set the initial countdown value.  If reload is nonzero then also set
-   count = limit.  */
-void ptimer_set_limit(ptimer_state *s, uint64_t limit, int reload)
-{
-    /*
-     * Artificially limit timeout rate to something
-     * achievable under QEMU.  Otherwise, QEMU spends all
-     * its time generating timer interrupts, and there
-     * is no forward progress.
-     * About ten microseconds is the fastest that really works
-     * on the current generation of host machines.
-     */
-
-    if (limit * s->period < 10000 && s->period) {
-        limit = 10000 / s->period;
-    }
-
-    s->limit = limit;
-    if (reload)
-        s->delta = limit;
-    if (s->enabled && reload) {
-        s->next_event = qemu_get_clock_ns(vm_clock);
-        ptimer_reload(s);
-    }
-}
-
-const VMStateDescription vmstate_ptimer = {
-    .name = "ptimer",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .minimum_version_id_old = 1,
-    .fields      = (VMStateField[]) {
-        VMSTATE_UINT8(enabled, ptimer_state),
-        VMSTATE_UINT64(limit, ptimer_state),
-        VMSTATE_UINT64(delta, ptimer_state),
-        VMSTATE_UINT32(period_frac, ptimer_state),
-        VMSTATE_INT64(period, ptimer_state),
-        VMSTATE_INT64(last_event, ptimer_state),
-        VMSTATE_INT64(next_event, ptimer_state),
-        VMSTATE_TIMER(timer, ptimer_state),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-ptimer_state *ptimer_init(QEMUBH *bh)
-{
-    ptimer_state *s;
-
-    s = (ptimer_state *)g_malloc0(sizeof(ptimer_state));
-    s->bh = bh;
-    s->timer = qemu_new_timer_ns(vm_clock, ptimer_tick, s);
-    return s;
-}