mips: move hw/mips/cputimer.c to target/mips/

This timer is a required part of the MIPS32/MIPS64 System Control coprocessor
(CP0). Moving it with the other architecture related files will allow an opaque
use of CPUMIPSState* in the next commit (introduce "internal.h").

also remove it from 'user' targets, remove an unnecessary include.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>

2 files changed, 1 insertions, 166 deletions

diff --git a/hw/mips/Makefile.objs b/hw/mips/Makefile.objs
index 48cd2ef..17a311a 100644
--- a/hw/mips/Makefile.objs
+++ b/hw/mips/Makefile.objs
@@ -1,5 +1,5 @@
 obj-y += mips_r4k.o mips_malta.o mips_mipssim.o
-obj-y += addr.o cputimer.o mips_int.o
+obj-y += addr.o mips_int.o
 obj-$(CONFIG_JAZZ) += mips_jazz.o
 obj-$(CONFIG_FULONG) += mips_fulong2e.o
 obj-y += gt64xxx_pci.o
diff --git a/hw/mips/cputimer.c b/hw/mips/cputimer.c
deleted file mode 100644
index 8a166b3..0000000
--- a/hw/mips/cputimer.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * QEMU MIPS timer support
- *
- * 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 "qemu/osdep.h"
-#include "hw/hw.h"
-#include "hw/mips/cpudevs.h"
-#include "qemu/timer.h"
-#include "sysemu/kvm.h"
-
-#define TIMER_PERIOD 10 /* 10 ns period for 100 Mhz frequency */
-
-/* XXX: do not use a global */
-uint32_t cpu_mips_get_random (CPUMIPSState *env)
-{
-    static uint32_t seed = 1;
-    static uint32_t prev_idx = 0;
-    uint32_t idx;
-    uint32_t nb_rand_tlb = env->tlb->nb_tlb - env->CP0_Wired;
-
-    if (nb_rand_tlb == 1) {
-        return env->tlb->nb_tlb - 1;
-    }
-
-    /* Don't return same value twice, so get another value */
-    do {
-        /* Use a simple algorithm of Linear Congruential Generator
-         * from ISO/IEC 9899 standard. */
-        seed = 1103515245 * seed + 12345;
-        idx = (seed >> 16) % nb_rand_tlb + env->CP0_Wired;
-    } while (idx == prev_idx);
-    prev_idx = idx;
-    return idx;
-}
-
-/* MIPS R4K timer */
-static void cpu_mips_timer_update(CPUMIPSState *env)
-{
-    uint64_t now, next;
-    uint32_t wait;
-
-    now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-    wait = env->CP0_Compare - env->CP0_Count - (uint32_t)(now / TIMER_PERIOD);
-    next = now + (uint64_t)wait * TIMER_PERIOD;
-    timer_mod(env->timer, next);
-}
-
-/* Expire the timer.  */
-static void cpu_mips_timer_expire(CPUMIPSState *env)
-{
-    cpu_mips_timer_update(env);
-    if (env->insn_flags & ISA_MIPS32R2) {
-        env->CP0_Cause |= 1 << CP0Ca_TI;
-    }
-    qemu_irq_raise(env->irq[(env->CP0_IntCtl >> CP0IntCtl_IPTI) & 0x7]);
-}
-
-uint32_t cpu_mips_get_count (CPUMIPSState *env)
-{
-    if (env->CP0_Cause & (1 << CP0Ca_DC)) {
-        return env->CP0_Count;
-    } else {
-        uint64_t now;
-
-        now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-        if (timer_pending(env->timer)
-            && timer_expired(env->timer, now)) {
-            /* The timer has already expired.  */
-            cpu_mips_timer_expire(env);
-        }
-
-        return env->CP0_Count + (uint32_t)(now / TIMER_PERIOD);
-    }
-}
-
-void cpu_mips_store_count (CPUMIPSState *env, uint32_t count)
-{
-    /*
-     * This gets called from cpu_state_reset(), potentially before timer init.
-     * So env->timer may be NULL, which is also the case with KVM enabled so
-     * treat timer as disabled in that case.
-     */
-    if (env->CP0_Cause & (1 << CP0Ca_DC) || !env->timer)
-        env->CP0_Count = count;
-    else {
-        /* Store new count register */
-        env->CP0_Count = count -
-               (uint32_t)(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / TIMER_PERIOD);
-        /* Update timer timer */
-        cpu_mips_timer_update(env);
-    }
-}
-
-void cpu_mips_store_compare (CPUMIPSState *env, uint32_t value)
-{
-    env->CP0_Compare = value;
-    if (!(env->CP0_Cause & (1 << CP0Ca_DC)))
-        cpu_mips_timer_update(env);
-    if (env->insn_flags & ISA_MIPS32R2)
-        env->CP0_Cause &= ~(1 << CP0Ca_TI);
-    qemu_irq_lower(env->irq[(env->CP0_IntCtl >> CP0IntCtl_IPTI) & 0x7]);
-}
-
-void cpu_mips_start_count(CPUMIPSState *env)
-{
-    cpu_mips_store_count(env, env->CP0_Count);
-}
-
-void cpu_mips_stop_count(CPUMIPSState *env)
-{
-    /* Store the current value */
-    env->CP0_Count += (uint32_t)(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) /
-                                 TIMER_PERIOD);
-}
-
-static void mips_timer_cb (void *opaque)
-{
-    CPUMIPSState *env;
-
-    env = opaque;
-#if 0
-    qemu_log("%s\n", __func__);
-#endif
-
-    if (env->CP0_Cause & (1 << CP0Ca_DC))
-        return;
-
-    /* ??? This callback should occur when the counter is exactly equal to
-       the comparator value.  Offset the count by one to avoid immediately
-       retriggering the callback before any virtual time has passed.  */
-    env->CP0_Count++;
-    cpu_mips_timer_expire(env);
-    env->CP0_Count--;
-}
-
-void cpu_mips_clock_init (MIPSCPU *cpu)
-{
-    CPUMIPSState *env = &cpu->env;
-
-    /*
-     * If we're in KVM mode, don't create the periodic timer, that is handled in
-     * kernel.
-     */
-    if (!kvm_enabled()) {
-        env->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &mips_timer_cb, env);
-    }
-}