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target/riscv: debug: Introduce tinfo CSR

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tinfo.info:
  One bit for each possible type enumerated in tdata1.
  If the bit is set, then that type is supported by the currently
  selected trigger.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-Id: <20220909134215.1843865-6-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Frank Chang 2022-09-09 21:42:12 +08:00 • committed by Alistair Francis
parent 6ea8d3fc40
commit 31b9798d82
4 changed files with 18 additions and 3 deletions
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2
target/riscv/debug.h
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@ -95,6 +95,8 @@ void tselect_csr_write(CPURISCVState *env, target_ulong val);
target_ulong tdata_csr_read(CPURISCVState *env, int tdata_index);
void tdata_csr_write(CPURISCVState *env, int tdata_index, target_ulong val);
target_ulong tinfo_csr_read(CPURISCVState *env);
void riscv_cpu_debug_excp_handler(CPUState *cs);
bool riscv_cpu_debug_check_breakpoint(CPUState *cs);
bool riscv_cpu_debug_check_watchpoint(CPUState *cs, CPUWatchpoint *wp);