From patchwork Tue Sep 6 03:43:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 9315707 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 353CA601C0 for ; Tue, 6 Sep 2016 05:48:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 34A1D28B4A for ; Tue, 6 Sep 2016 05:48:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2731D28B5E; Tue, 6 Sep 2016 05:48:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8415C28B4A for ; Tue, 6 Sep 2016 05:48:14 +0000 (UTC) Received: from localhost ([::1]:58884 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh9Ez-0003dP-LY for patchwork-qemu-devel@patchwork.kernel.org; Tue, 06 Sep 2016 01:48:13 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50272) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh7GT-0003GN-3d for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:41:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bh7GH-0007vL-Ka for qemu-devel@nongnu.org; Mon, 05 Sep 2016 23:41:37 -0400 Received: from ozlabs.org ([103.22.144.67]:55756) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bh7GH-0007l2-0S; Mon, 05 Sep 2016 23:41:25 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 3sSspD30cQz9s2k; Tue, 6 Sep 2016 13:41:20 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1473133284; bh=6DUQahyS9SIR1QELrhSzoJxUNnpmusDvJQQWWTu0ABo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ijci+4Bk8ufF1LMF4Acv2LZ7W3mi0WGW11s0l34VQsUd0IA0nkHsh4XffSt6FXFHo g+Bf42VKilcMxKcV06a5PqnEaMG4VGqp9kK9snuZRdUb31whTOuaXl3h4Q0DjeVLZ+ N2+XDUY/zoi/t5uS0gXwHgGeKrWmxOIRSHqnn0W8= From: David Gibson To: peter.maydell@linaro.org Date: Tue, 6 Sep 2016 13:43:02 +1000 Message-Id: <1473133396-18940-53-git-send-email-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1473133396-18940-1-git-send-email-david@gibson.dropbear.id.au> References: <1473133396-18940-1-git-send-email-david@gibson.dropbear.id.au> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 103.22.144.67 Subject: [Qemu-devel] [PULL 52/66] target-ppc: add vsrv instruction X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nikunj A Dadhania , agraf@suse.de, qemu-devel@nongnu.org, Vivek Andrew Sha , qemu-ppc@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Vivek Andrew Sha Adds Vector Shift Right Variable instruction. Signed-off-by: Vivek Andrew Sha [ reverse the order of computation to avoid temporary array ] Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson Signed-off-by: David Gibson --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 17 +++++++++++++++++ target-ppc/translate/vmx-impl.c | 1 + target-ppc/translate/vmx-ops.c | 1 + 4 files changed, 20 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 9703f85..8eada2f 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -211,6 +211,7 @@ DEF_HELPER_3(vslw, void, avr, avr, avr) DEF_HELPER_3(vsld, void, avr, avr, avr) DEF_HELPER_3(vslo, void, avr, avr, avr) DEF_HELPER_3(vsro, void, avr, avr, avr) +DEF_HELPER_3(vsrv, void, avr, avr, avr) DEF_HELPER_3(vslv, void, avr, avr, avr) DEF_HELPER_3(vaddcuw, void, avr, avr, avr) DEF_HELPER_3(vsubcuw, void, avr, avr, avr) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 12fe144..552b2e0 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -1710,6 +1710,23 @@ void helper_vslv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) } } +void helper_vsrv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + int i; + unsigned int shift, bytes; + + /* Use reverse order, as destination and source register can be same. Its + * being modified in place saving temporary, reverse order will guarantee + * that computed result is not fed back. + */ + for (i = ARRAY_SIZE(r->u8) - 1; i >= 0; i--) { + shift = b->u8[i] & 0x7; /* extract shift value */ + bytes = ((i ? a->u8[i - 1] : 0) << 8) + a->u8[i]; + /* extract adjacent bytes */ + r->u8[i] = (bytes >> shift) & 0xFF; /* shift and store result */ + } +} + void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift) { int sh = shift & 0xf; diff --git a/target-ppc/translate/vmx-impl.c b/target-ppc/translate/vmx-impl.c index e979668..b984122 100644 --- a/target-ppc/translate/vmx-impl.c +++ b/target-ppc/translate/vmx-impl.c @@ -383,6 +383,7 @@ GEN_VXFORM(vsrab, 2, 12); GEN_VXFORM(vsrah, 2, 13); GEN_VXFORM(vsraw, 2, 14); GEN_VXFORM(vsrad, 2, 15); +GEN_VXFORM(vsrv, 2, 28); GEN_VXFORM(vslv, 2, 29); GEN_VXFORM(vslo, 6, 16); GEN_VXFORM(vsro, 6, 17); diff --git a/target-ppc/translate/vmx-ops.c b/target-ppc/translate/vmx-ops.c index 61e08b2..2a9f225 100644 --- a/target-ppc/translate/vmx-ops.c +++ b/target-ppc/translate/vmx-ops.c @@ -110,6 +110,7 @@ GEN_VXFORM(vsrab, 2, 12), GEN_VXFORM(vsrah, 2, 13), GEN_VXFORM(vsraw, 2, 14), GEN_VXFORM_207(vsrad, 2, 15), +GEN_VXFORM_300(vsrv, 2, 28), GEN_VXFORM_300(vslv, 2, 29), GEN_VXFORM(vslo, 6, 16), GEN_VXFORM(vsro, 6, 17),