From patchwork Thu Apr 28 09:47:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12830380 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73A00C433EF for ; Thu, 28 Apr 2022 10:16:43 +0000 (UTC) Received: from localhost ([::1]:50098 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nk1CT-0005rU-TA for qemu-devel@archiver.kernel.org; Thu, 28 Apr 2022 06:16:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38702) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk0kT-0003CI-29 for qemu-devel@nongnu.org; Thu, 28 Apr 2022 05:47:45 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:57596) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk0kQ-0008K7-R5 for qemu-devel@nongnu.org; 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Thu, 28 Apr 2022 09:47:37 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.194.113]) by smtp.corp.redhat.com (Postfix) with ESMTP id A677540CFD16; Thu, 28 Apr 2022 09:47:34 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v6 10/13] target/s390x: vxeh2: vector {load, store} byte reversed elements Date: Thu, 28 Apr 2022 11:47:05 +0200 Message-Id: <20220428094708.84835-11-david@redhat.com> In-Reply-To: <20220428094708.84835-1-david@redhat.com> References: <20220428094708.84835-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , David Hildenbrand , Cornelia Huck , Richard Henderson , Eric Farman , David Miller , Halil Pasic , qemu-s390x@nongnu.org, Christian Borntraeger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: David Miller Signed-off-by: David Miller Signed-off-by: Richard Henderson Reviewed-by: David Hildenbrand Tested-by: Thomas Huth Signed-off-by: David Hildenbrand --- target/s390x/tcg/insn-data.def | 4 + target/s390x/tcg/translate_vx.c.inc | 113 ++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+) diff --git a/target/s390x/tcg/insn-data.def b/target/s390x/tcg/insn-data.def index b524541a7d..ee6e1dc9e5 100644 --- a/target/s390x/tcg/insn-data.def +++ b/target/s390x/tcg/insn-data.def @@ -1027,6 +1027,8 @@ F(0xe756, VLR, VRR_a, V, 0, 0, 0, 0, vlr, 0, IF_VEC) /* VECTOR LOAD AND REPLICATE */ F(0xe705, VLREP, VRX, V, la2, 0, 0, 0, vlrep, 0, IF_VEC) +/* VECTOR LOAD BYTE REVERSED ELEMENTS */ + F(0xe606, VLBR, VRX, VE2, la2, 0, 0, 0, vlbr, 0, IF_VEC) /* VECTOR LOAD ELEMENT */ E(0xe700, VLEB, VRX, V, la2, 0, 0, 0, vle, 0, ES_8, IF_VEC) E(0xe701, VLEH, VRX, V, la2, 0, 0, 0, vle, 0, ES_16, IF_VEC) @@ -1079,6 +1081,8 @@ F(0xe75f, VSEG, VRR_a, V, 0, 0, 0, 0, vseg, 0, IF_VEC) /* VECTOR STORE */ F(0xe70e, VST, VRX, V, la2, 0, 0, 0, vst, 0, IF_VEC) +/* VECTOR STORE BYTE REVERSED ELEMENTS */ + F(0xe60e, VSTBR, VRX, VE2, la2, 0, 0, 0, vstbr, 0, IF_VEC) /* VECTOR STORE ELEMENT */ E(0xe708, VSTEB, VRX, V, la2, 0, 0, 0, vste, 0, ES_8, IF_VEC) E(0xe709, VSTEH, VRX, V, la2, 0, 0, 0, vste, 0, ES_16, IF_VEC) diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc index 7667a995c8..75f3fd7edd 100644 --- a/target/s390x/tcg/translate_vx.c.inc +++ b/target/s390x/tcg/translate_vx.c.inc @@ -457,6 +457,62 @@ static DisasJumpType op_vlrep(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vlbr(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s, m3); + TCGv_i64 t0, t1; + + if (es < ES_16 || es > ES_128) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + t0 = tcg_temp_new_i64(); + t1 = tcg_temp_new_i64(); + + + if (es == ES_128) { + tcg_gen_qemu_ld_i64(t1, o->addr1, get_mem_index(s), MO_LEUQ); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + tcg_gen_qemu_ld_i64(t0, o->addr1, get_mem_index(s), MO_LEUQ); + goto write; + } + + /* Begin with byte reversed doublewords... */ + tcg_gen_qemu_ld_i64(t0, o->addr1, get_mem_index(s), MO_LEUQ); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + tcg_gen_qemu_ld_i64(t1, o->addr1, get_mem_index(s), MO_LEUQ); + + /* + * For 16 and 32-bit elements, the doubleword bswap also reversed + * the order of the elements. Perform a larger order swap to put + * them back into place. For the 128-bit "element", finish the + * bswap by swapping the doublewords. + */ + switch (es) { + case ES_16: + tcg_gen_hswap_i64(t0, t0); + tcg_gen_hswap_i64(t1, t1); + break; + case ES_32: + tcg_gen_wswap_i64(t0, t0); + tcg_gen_wswap_i64(t1, t1); + break; + case ES_64: + break; + default: + g_assert_not_reached(); + } + +write: + write_vec_element_i64(t0, get_field(s, v1), 0, ES_64); + write_vec_element_i64(t1, get_field(s, v1), 1, ES_64); + + tcg_temp_free(t0); + tcg_temp_free(t1); + return DISAS_NEXT; +} + static DisasJumpType op_vle(DisasContext *s, DisasOps *o) { const uint8_t es = s->insn->data; @@ -998,6 +1054,63 @@ static DisasJumpType op_vst(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vstbr(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s, m3); + TCGv_i64 t0, t1; + + if (es < ES_16 || es > ES_128) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + /* Probe write access before actually modifying memory */ + gen_helper_probe_write_access(cpu_env, o->addr1, tcg_constant_i64(16)); + + t0 = tcg_temp_new_i64(); + t1 = tcg_temp_new_i64(); + + + if (es == ES_128) { + read_vec_element_i64(t1, get_field(s, v1), 0, ES_64); + read_vec_element_i64(t0, get_field(s, v1), 1, ES_64); + goto write; + } + + read_vec_element_i64(t0, get_field(s, v1), 0, ES_64); + read_vec_element_i64(t1, get_field(s, v1), 1, ES_64); + + /* + * For 16 and 32-bit elements, the doubleword bswap below will + * reverse the order of the elements. Perform a larger order + * swap to put them back into place. For the 128-bit "element", + * finish the bswap by swapping the doublewords. + */ + switch (es) { + case MO_16: + tcg_gen_hswap_i64(t0, t0); + tcg_gen_hswap_i64(t1, t1); + break; + case MO_32: + tcg_gen_wswap_i64(t0, t0); + tcg_gen_wswap_i64(t1, t1); + break; + case MO_64: + break; + default: + g_assert_not_reached(); + } + +write: + tcg_gen_qemu_st_i64(t0, o->addr1, get_mem_index(s), MO_LEUQ); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + tcg_gen_qemu_st_i64(t1, o->addr1, get_mem_index(s), MO_LEUQ); + + tcg_temp_free(t0); + tcg_temp_free(t1); + return DISAS_NEXT; +} + static DisasJumpType op_vste(DisasContext *s, DisasOps *o) { const uint8_t es = s->insn->data;