From mboxrd@z Thu Jan 1 00:00:00 1970 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 3CF00C83F26 for ; Mon, 21 Jul 2025 16:32:31 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1udtMk-0007B5-Sm; Mon, 21 Jul 2025 12:27:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1udtJu-0008Kk-Ac for qemu-devel@nongnu.org; Mon, 21 Jul 2025 12:24:54 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1udtJn-0001mq-7S for qemu-devel@nongnu.org; Mon, 21 Jul 2025 12:24:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1753115086; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hW0qyVo7jA8jnnYQBeOKqk6U8QRqNlohALcXAO+SKzI=; b=Msr9ohR69yQtoSmCx0Krb+Z4Kvwy2zs/46KOHVO7wb1npaY8KdG2X/QezEfqiIzCIC+8nb 4YzQ/4LXFyjk6DuXoAVNMlklcbJ8307cWfNiRAp2uTQIyaC3eUNythBzTjhQXKk13v8lyX d4+t07RKYIG/4gS5F+ThRrHXOG9KBh8= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-3-5pJYRcK_PjyLT6FWtE5XvQ-1; Mon, 21 Jul 2025 12:24:43 -0400 X-MC-Unique: 5pJYRcK_PjyLT6FWtE5XvQ-1 X-Mimecast-MFC-AGG-ID: 5pJYRcK_PjyLT6FWtE5XvQ_1753115082 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 377F7180048E; Mon, 21 Jul 2025 16:24:42 +0000 (UTC) Received: from corto.redhat.com (unknown [10.45.224.19]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 03110195608D; Mon, 21 Jul 2025 16:24:39 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza , Glenn Miles , Michael Kowal , Gautam Menghani , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 44/50] ppc/xive2: Implement pool context push TIMA op Date: Mon, 21 Jul 2025 18:22:27 +0200 Message-ID: <20250721162233.686837-45-clg@redhat.com> In-Reply-To: <20250721162233.686837-1-clg@redhat.com> References: <20250721162233.686837-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.926, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Nicholas Piggin Implement pool context push TIMA op. Signed-off-by: Nicholas Piggin Reviewed-by: Glenn Miles Reviewed-by: Michael Kowal Tested-by: Gautam Menghani Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-45-npiggin@gmail.com Signed-off-by: Cédric Le Goater --- include/hw/ppc/xive2.h | 2 ++ hw/intc/xive.c | 4 ++++ hw/intc/xive2.c | 50 ++++++++++++++++++++++++++++-------------- 3 files changed, 39 insertions(+), 17 deletions(-) diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h index a91b99057c2a..c1ab06a55adf 100644 --- a/include/hw/ppc/xive2.h +++ b/include/hw/ppc/xive2.h @@ -140,6 +140,8 @@ bool xive2_tm_irq_precluded(XiveTCTX *tctx, int ring, uint8_t priority); void xive2_tm_set_lsmfb(XiveTCTX *tctx, int ring, uint8_t priority); void xive2_tm_set_hv_target(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, uint64_t value, unsigned size); +void xive2_tm_push_pool_ctx(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size); uint64_t xive2_tm_pull_pool_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, unsigned size); uint64_t xive2_tm_pull_phys_ctx(XivePresenter *xptr, XiveTCTX *tctx, diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 6589c0a523c9..e7f77be2f711 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -733,6 +733,10 @@ static const XiveTmOp xive2_tm_operations[] = { xive2_tm_push_os_ctx, NULL }, { XIVE_TM_OS_PAGE, TM_QW1_OS + TM_LGS, 1, true, true, xive_tm_set_os_lgs, NULL }, + { XIVE_TM_HV_PAGE, TM_QW2_HV_POOL + TM_WORD2, 4, true, true, + xive2_tm_push_pool_ctx, NULL }, + { XIVE_TM_HV_PAGE, TM_QW2_HV_POOL + TM_WORD2, 8, true, true, + xive2_tm_push_pool_ctx, NULL }, { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_CPPR, 1, true, true, xive2_tm_set_hv_cppr, NULL }, { XIVE_TM_HV_PAGE, TM_QW3_HV_PHYS + TM_WORD2, 1, true, true, diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c index e3f9ff384a1a..4244e1d02b61 100644 --- a/hw/intc/xive2.c +++ b/hw/intc/xive2.c @@ -583,6 +583,7 @@ static void xive2_tctx_save_ctx(Xive2Router *xrtr, XiveTCTX *tctx, xive2_router_write_nvp(xrtr, nvp_blk, nvp_idx, &nvp, 1); } +/* POOL cam is the same as OS cam encoding */ static void xive2_cam_decode(uint32_t cam, uint8_t *nvp_blk, uint32_t *nvp_idx, bool *valid, bool *hw) { @@ -940,10 +941,11 @@ static uint8_t xive2_tctx_restore_ctx(Xive2Router *xrtr, XiveTCTX *tctx, } static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx, + uint8_t ring, uint8_t nvp_blk, uint32_t nvp_idx, bool do_restore) { - uint8_t *regs = &tctx->regs[TM_QW1_OS]; + uint8_t *regs = &tctx->regs[ring]; uint8_t ipb; Xive2Nvp nvp; @@ -965,7 +967,7 @@ static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx, /* Automatically restore thread context registers */ if (xive2_router_get_config(xrtr) & XIVE2_VP_SAVE_RESTORE && do_restore) { - xive2_tctx_restore_ctx(xrtr, tctx, TM_QW1_OS, nvp_blk, nvp_idx, &nvp); + xive2_tctx_restore_ctx(xrtr, tctx, ring, nvp_blk, nvp_idx, &nvp); } ipb = xive_get_field32(NVP2_W2_IPB, nvp.w2); @@ -976,48 +978,62 @@ static void xive2_tctx_need_resend(Xive2Router *xrtr, XiveTCTX *tctx, /* IPB bits in the backlog are merged with the TIMA IPB bits */ regs[TM_IPB] |= ipb; - xive2_tctx_process_pending(tctx, TM_QW1_OS); + xive2_tctx_process_pending(tctx, ring == TM_QW2_HV_POOL ? + TM_QW3_HV_PHYS : ring); } /* - * Updating the OS CAM line can trigger a resend of interrupt + * Updating the ring CAM line can trigger a resend of interrupt */ -void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, - hwaddr offset, uint64_t value, unsigned size) +static void xive2_tm_push_ctx(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size, + uint8_t ring) { uint32_t cam; - uint32_t qw1w2; - uint64_t qw1dw1; + uint32_t w2; + uint64_t dw1; uint8_t nvp_blk; uint32_t nvp_idx; - bool vo; + bool v; bool do_restore; /* First update the thead context */ switch (size) { case 4: cam = value; - qw1w2 = cpu_to_be32(cam); - memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1w2, 4); + w2 = cpu_to_be32(cam); + memcpy(&tctx->regs[ring + TM_WORD2], &w2, 4); break; case 8: cam = value >> 32; - qw1dw1 = cpu_to_be64(value); - memcpy(&tctx->regs[TM_QW1_OS + TM_WORD2], &qw1dw1, 8); + dw1 = cpu_to_be64(value); + memcpy(&tctx->regs[ring + TM_WORD2], &dw1, 8); break; default: g_assert_not_reached(); } - xive2_cam_decode(cam, &nvp_blk, &nvp_idx, &vo, &do_restore); + xive2_cam_decode(cam, &nvp_blk, &nvp_idx, &v, &do_restore); /* Check the interrupt pending bits */ - if (vo) { - xive2_tctx_need_resend(XIVE2_ROUTER(xptr), tctx, nvp_blk, nvp_idx, - do_restore); + if (v) { + xive2_tctx_need_resend(XIVE2_ROUTER(xptr), tctx, ring, + nvp_blk, nvp_idx, do_restore); } } +void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size) +{ + xive2_tm_push_ctx(xptr, tctx, offset, value, size, TM_QW1_OS); +} + +void xive2_tm_push_pool_ctx(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size) +{ + xive2_tm_push_ctx(xptr, tctx, offset, value, size, TM_QW2_HV_POOL); +} + /* returns -1 if ring is invalid, but still populates block and index */ static int xive2_tctx_get_nvp_indexes(XiveTCTX *tctx, uint8_t ring, uint8_t *nvp_blk, uint32_t *nvp_idx) -- 2.50.1