target/mips: Move sysemu specific files under sysemu/ subfolder

Move sysemu-specific files under the new sysemu/ subfolder
and adapt the Meson machinery.
Update the KVM MIPS entry in MAINTAINERS.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-17-f4bug@amsat.org>

1 files changed, 0 insertions, 145 deletions

diff --git a/target/mips/cp0_timer.c b/target/mips/cp0_timer.c
deleted file mode 100644
index 70de95d338..0000000000
--- a/target/mips/cp0_timer.c
+++ /dev/null
@@ -1,145 +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/irq.h"
-#include "hw/mips/cpudevs.h"
-#include "qemu/timer.h"
-#include "sysemu/kvm.h"
-#include "internal.h"
-
-/* MIPS R4K timer */
-static void cpu_mips_timer_update(CPUMIPSState *env)
-{
-    uint64_t now_ns, next_ns;
-    uint32_t wait;
-
-    now_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-    wait = env->CP0_Compare - env->CP0_Count -
-           (uint32_t)(now_ns / env->cp0_count_ns);
-    next_ns = now_ns + (uint64_t)wait * env->cp0_count_ns;
-    timer_mod(env->timer, next_ns);
-}
-
-/* Expire the timer.  */
-static void cpu_mips_timer_expire(CPUMIPSState *env)
-{
-    cpu_mips_timer_update(env);
-    if (env->insn_flags & ISA_MIPS_R2) {
-        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_ns;
-
-        now_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-        if (timer_pending(env->timer)
-            && timer_expired(env->timer, now_ns)) {
-            /* The timer has already expired.  */
-            cpu_mips_timer_expire(env);
-        }
-
-        return env->CP0_Count + (uint32_t)(now_ns / env->cp0_count_ns);
-    }
-}
-
-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) /
-                          env->cp0_count_ns);
-        /* 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_MIPS_R2) {
-        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) /
-                                 env->cp0_count_ns);
-}
-
-static void mips_timer_cb(void *opaque)
-{
-    CPUMIPSState *env;
-
-    env = opaque;
-
-    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);
-    }
-}