diff options
| author | Jiajie Chen <c@jia.je> | 2023-08-22 09:13:49 +0200 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2023-08-24 11:17:56 +0800 |
| commit | 50fffcc49b0e68f53de5c1eaf21ec07819540d5a (patch) | |
| tree | 088794cd0ec0da005af954fe4b4812dd976037c3 /target/loongarch/tlb_helper.c | |
| parent | eece5764092063f3f7a091a8b42935e9cb1a37ff (diff) | |
target/loongarch: Support LoongArch32 VPPN
VPPN of TLBEHI/TLBREHI is limited to 19 bits in LA32.
Signed-off-by: Jiajie Chen <c@jia.je>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20230822032724.1353391-4-gaosong@loongson.cn>
Message-Id: <20230822071405.35386-4-philmd@linaro.org>
Diffstat (limited to 'target/loongarch/tlb_helper.c')
| -rw-r--r-- | target/loongarch/tlb_helper.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/target/loongarch/tlb_helper.c b/target/loongarch/tlb_helper.c index 1f8e7911c7..c8b8b0497f 100644 --- a/target/loongarch/tlb_helper.c +++ b/target/loongarch/tlb_helper.c @@ -300,8 +300,13 @@ static void raise_mmu_exception(CPULoongArchState *env, target_ulong address, if (tlb_error == TLBRET_NOMATCH) { env->CSR_TLBRBADV = address; - env->CSR_TLBREHI = FIELD_DP64(env->CSR_TLBREHI, CSR_TLBREHI, VPPN, - extract64(address, 13, 35)); + if (is_la64(env)) { + env->CSR_TLBREHI = FIELD_DP64(env->CSR_TLBREHI, CSR_TLBREHI_64, + VPPN, extract64(address, 13, 35)); + } else { + env->CSR_TLBREHI = FIELD_DP64(env->CSR_TLBREHI, CSR_TLBREHI_32, + VPPN, extract64(address, 13, 19)); + } } else { if (!FIELD_EX64(env->CSR_DBG, CSR_DBG, DST)) { env->CSR_BADV = address; @@ -366,12 +371,20 @@ static void fill_tlb_entry(CPULoongArchState *env, int index) if (FIELD_EX64(env->CSR_TLBRERA, CSR_TLBRERA, ISTLBR)) { csr_ps = FIELD_EX64(env->CSR_TLBREHI, CSR_TLBREHI, PS); - csr_vppn = FIELD_EX64(env->CSR_TLBREHI, CSR_TLBREHI, VPPN); + if (is_la64(env)) { + csr_vppn = FIELD_EX64(env->CSR_TLBREHI, CSR_TLBREHI_64, VPPN); + } else { + csr_vppn = FIELD_EX64(env->CSR_TLBREHI, CSR_TLBREHI_32, VPPN); + } lo0 = env->CSR_TLBRELO0; lo1 = env->CSR_TLBRELO1; } else { csr_ps = FIELD_EX64(env->CSR_TLBIDX, CSR_TLBIDX, PS); - csr_vppn = FIELD_EX64(env->CSR_TLBEHI, CSR_TLBEHI, VPPN); + if (is_la64(env)) { + csr_vppn = FIELD_EX64(env->CSR_TLBEHI, CSR_TLBEHI_64, VPPN); + } else { + csr_vppn = FIELD_EX64(env->CSR_TLBEHI, CSR_TLBEHI_32, VPPN); + } lo0 = env->CSR_TLBELO0; lo1 = env->CSR_TLBELO1; } @@ -491,7 +504,7 @@ void helper_tlbfill(CPULoongArchState *env) if (pagesize == stlb_ps) { /* Only write into STLB bits [47:13] */ - address = entryhi & ~MAKE_64BIT_MASK(0, R_CSR_TLBEHI_VPPN_SHIFT); + address = entryhi & ~MAKE_64BIT_MASK(0, R_CSR_TLBEHI_64_VPPN_SHIFT); /* Choose one set ramdomly */ set = get_random_tlb(0, 7); |