target/loongarch: Add constant timer support

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-25-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/target/loongarch/internals.h b/target/loongarch/internals.h
index 69183e8bb5..4b1bcd7c0f 100644
--- a/target/loongarch/internals.h
+++ b/target/loongarch/internals.h
@@ -32,6 +32,12 @@ extern const VMStateDescription vmstate_loongarch_cpu;
 
 void loongarch_cpu_set_irq(void *opaque, int irq, int level);
 
+void loongarch_constant_timer_cb(void *opaque);
+uint64_t cpu_loongarch_get_constant_timer_counter(LoongArchCPU *cpu);
+uint64_t cpu_loongarch_get_constant_timer_ticks(LoongArchCPU *cpu);
+void cpu_loongarch_store_constant_timer_config(LoongArchCPU *cpu,
+                                               uint64_t value);
+
 bool loongarch_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                             MMUAccessType access_type, int mmu_idx,
                             bool probe, uintptr_t retaddr);