d6ea423635
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Message-Id: <20201023123353.19796-1-chetan4windows@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
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* Helpers for system instructions.
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*
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/exec-all.h"
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#include "exec/helper-proto.h"
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#include "sysemu/runstate.h"
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#include "sysemu/sysemu.h"
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#include "qemu/timer.h"
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uint64_t helper_load_pcc(CPUAlphaState *env)
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{
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#ifndef CONFIG_USER_ONLY
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/* In system mode we have access to a decent high-resolution clock.
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In order to make OS-level time accounting work with the RPCC,
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present it with a well-timed clock fixed at 250MHz. */
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return (((uint64_t)env->pcc_ofs << 32)
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| (uint32_t)(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) >> 2));
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#else
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/* In user-mode, QEMU_CLOCK_VIRTUAL doesn't exist. Just pass through the host cpu
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clock ticks. Also, don't bother taking PCC_OFS into account. */
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return (uint32_t)cpu_get_host_ticks();
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#endif
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}
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/* PALcode support special instructions */
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#ifndef CONFIG_USER_ONLY
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void helper_tbia(CPUAlphaState *env)
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{
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tlb_flush(env_cpu(env));
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}
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void helper_tbis(CPUAlphaState *env, uint64_t p)
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{
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tlb_flush_page(env_cpu(env), p);
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}
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void helper_tb_flush(CPUAlphaState *env)
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{
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tb_flush(env_cpu(env));
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}
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void helper_halt(uint64_t restart)
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{
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if (restart) {
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qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
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} else {
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qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
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}
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}
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uint64_t helper_get_vmtime(void)
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{
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return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
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}
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uint64_t helper_get_walltime(void)
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{
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return qemu_clock_get_ns(rtc_clock);
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}
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void helper_set_alarm(CPUAlphaState *env, uint64_t expire)
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{
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AlphaCPU *cpu = env_archcpu(env);
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if (expire) {
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env->alarm_expire = expire;
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timer_mod(cpu->alarm_timer, expire);
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} else {
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timer_del(cpu->alarm_timer);
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}
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}
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#endif /* CONFIG_USER_ONLY */
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