Message ID | 20231017061244.681584-48-richard.henderson@linaro.org |
---|---|
State | Superseded |
Headers | show
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([71.212.149.95]) by smtp.gmail.com with ESMTPSA id m10-20020a056a00080a00b00690ca4356f1sm579280pfk.198.2023.10.16.23.16.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Oct 2023 23:16:24 -0700 (PDT) From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk Subject: [PATCH v2 47/90] target/sparc: Use tcg_gen_qemu_{ld, st}_i128 for GET_ASI_DTWINX Date: Mon, 16 Oct 2023 23:12:01 -0700 Message-Id: <20231017061244.681584-48-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231017061244.681584-1-richard.henderson@linaro.org> References: <20231017061244.681584-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::334; envelope-from=richard.henderson@linaro.org; helo=mail-ot1-x334.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org |
Series |
target/sparc: Convert to decodetree
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expand
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diff --git a/target/sparc/translate.c b/target/sparc/translate.c index eed0fbadf9..16b024fab7 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -2537,11 +2537,27 @@ static void gen_ldda_asi0(DisasContext *dc, DisasASI *da, TCGv addr, int rd) return; case GET_ASI_DTWINX: - assert(TARGET_LONG_BITS == 64); - tcg_gen_qemu_ld_tl(hi, addr, da->mem_idx, da->memop | MO_ALIGN_16); - tcg_gen_addi_tl(addr, addr, 8); - tcg_gen_qemu_ld_tl(lo, addr, da->mem_idx, da->memop); +#ifdef TARGET_SPARC64 + { + MemOp mop = (da->memop & MO_BSWAP) | MO_128 | MO_ALIGN_16; + TCGv_i128 t = tcg_temp_new_i128(); + + tcg_gen_qemu_ld_i128(t, addr, da->mem_idx, mop); + /* + * Note that LE twinx acts as if each 64-bit register result is + * byte swapped. We perform one 128-bit LE load, so must swap + * the order of the writebacks. + */ + if ((mop & MO_BSWAP) == MO_TE) { + tcg_gen_extr_i128_i64(lo, hi, t); + } else { + tcg_gen_extr_i128_i64(hi, lo, t); + } + } break; +#else + g_assert_not_reached(); +#endif case GET_ASI_DIRECT: { @@ -2606,11 +2622,27 @@ static void gen_stda_asi0(DisasContext *dc, DisasASI *da, TCGv addr, int rd) break; case GET_ASI_DTWINX: - assert(TARGET_LONG_BITS == 64); - tcg_gen_qemu_st_tl(hi, addr, da->mem_idx, da->memop | MO_ALIGN_16); - tcg_gen_addi_tl(addr, addr, 8); - tcg_gen_qemu_st_tl(lo, addr, da->mem_idx, da->memop); +#ifdef TARGET_SPARC64 + { + MemOp mop = (da->memop & MO_BSWAP) | MO_128 | MO_ALIGN_16; + TCGv_i128 t = tcg_temp_new_i128(); + + /* + * Note that LE twinx acts as if each 64-bit register result is + * byte swapped. We perform one 128-bit LE store, so must swap + * the order of the construction. + */ + if ((mop & MO_BSWAP) == MO_TE) { + tcg_gen_concat_i64_i128(t, lo, hi); + } else { + tcg_gen_concat_i64_i128(t, hi, lo); + } + tcg_gen_qemu_st_i128(t, addr, da->mem_idx, mop); + } break; +#else + g_assert_not_reached(); +#endif case GET_ASI_DIRECT: {
Perform one atomic 16-byte operation. The atomicity is required for the LDTXA instructions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/sparc/translate.c | 48 +++++++++++++++++++++++++++++++++------- 1 file changed, 40 insertions(+), 8 deletions(-)