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GET /api/patches/2218244/?format=api
{ "id": 2218244, "url": "http://patchwork.ozlabs.org/api/patches/2218244/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260331185219.12187-6-deller@kernel.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260331185219.12187-6-deller@kernel.org>", "list_archive_url": null, "date": "2026-03-31T18:52:16", "name": "[PULL,5/8] hw/pci-host/astro: Add GMMIO mapping", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "71cb31b05d7a4240f357a19e4a66e64827471fe6", "submitter": { "id": 87076, "url": "http://patchwork.ozlabs.org/api/people/87076/?format=api", "name": "Helge Deller", "email": "deller@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260331185219.12187-6-deller@kernel.org/mbox/", "series": [ { "id": 498241, "url": "http://patchwork.ozlabs.org/api/series/498241/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=498241", "date": "2026-03-31T18:52:18", "name": "[PULL,1/8] hw/pci-host/astro: Make astro address arrays accessible for other users", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498241/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218244/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218244/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=ZJgqyPaa;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4flchm1nmRz1yGH\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 01 Apr 2026 05:53:44 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1w7eCY-0000DE-Hj; Tue, 31 Mar 2026 14:52:34 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <deller@kernel.org>) id 1w7eCW-0000CU-C7\n for qemu-devel@nongnu.org; Tue, 31 Mar 2026 14:52:32 -0400", "from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <deller@kernel.org>) id 1w7eCU-0001Xj-Kt\n for qemu-devel@nongnu.org; Tue, 31 Mar 2026 14:52:32 -0400", "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n by sea.source.kernel.org (Postfix) with ESMTP id 8CB6B441E1;\n Tue, 31 Mar 2026 18:52:29 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 87C15C19424;\n Tue, 31 Mar 2026 18:52:28 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n s=k20201202; t=1774983149;\n bh=E2rz4Mtc0I32yjCRAUlfEclsTcv2IlBoFfM9SwPj0S0=;\n h=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n b=ZJgqyPaaErcvsEgyQyAmV8HkzlHmPxEYV5oD1X3jAljVc1jvpa5tsLGBrgBpNqZEk\n dDhP9xCbPWe6q8foYGYy4PQtE/Y38rjWPNyU+X21j4R+RNwkOa/y9qPr3hmHf/yY3u\n 4RPWWk/AFtiOOgUC9PQS52BbeYp6ee8V7wvGKyTruimp95fyfG4gO8VjmPD4MzUc2P\n cSTQ4BDAOzbaNCmaf94SIhEblR2A2JssynnjAs036jFNaonEgXk/oKcM41I12a0+n3\n qIFSg4D006ZkYFQn6VXrkNJ5rGDdqirjrASe9otSITkUXehh5q/rzx1PyJYuU5I3dh\n zzJeaXHHZHDPg==", "From": "Helge Deller <deller@kernel.org>", "To": "qemu-devel@nongnu.org", "Cc": "Helge Deller <deller@gmx.de>,\n Richard Henderson <richard.henderson@linaro.org>", "Subject": "[PULL 5/8] hw/pci-host/astro: Add GMMIO mapping", "Date": "Tue, 31 Mar 2026 20:52:16 +0200", "Message-ID": "<20260331185219.12187-6-deller@kernel.org>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260331185219.12187-1-deller@kernel.org>", "References": "<20260331185219.12187-1-deller@kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2600:3c0a:e001:78e:0:1991:8:25;\n envelope-from=deller@kernel.org; helo=sea.source.kernel.org", "X-Spam_score_int": "-25", "X-Spam_score": "-2.6", "X-Spam_bar": "--", "X-Spam_report": "(-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n 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 development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <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>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Helge Deller <deller@gmx.de>\n\nImplement the GMMIO mapping.\n\nSigned-off-by: Helge Deller <deller@gmx.de>\n---\n hw/pci-host/astro.c | 71 ++++++++++++++++++++++++++++++++++++++++++++-\n 1 file changed, 70 insertions(+), 1 deletion(-)", "diff": "diff --git a/hw/pci-host/astro.c b/hw/pci-host/astro.c\nindex b7760c4b32..9e6386069b 100644\n--- a/hw/pci-host/astro.c\n+++ b/hw/pci-host/astro.c\n@@ -14,7 +14,6 @@\n * - All user-added devices are currently attached to the first\n * Elroy (PCI bus) only for now. To fix this additional work in\n * SeaBIOS and this driver is needed. See \"user_creatable\" flag below.\n- * - GMMIO (Greater than 4 GB MMIO) register\n */\n \n #define TYPE_ASTRO_IOMMU_MEMORY_REGION \"astro-iommu-memory-region\"\n@@ -660,6 +659,73 @@ static void adjust_LMMIO_DIRECT_mapping(AstroState *s, unsigned int reg_index)\n memory_region_set_enabled(lmmio_alias, true);\n }\n \n+static void adjust_GMMIO_mapping(AstroState *s)\n+{\n+ MemoryRegion *gmmio;\n+ uint64_t map_addr, map_size, align_mask;\n+ uint32_t map_route, map_enabled, i;\n+\n+ gmmio = &s->gmmio;\n+ map_addr = s->ioc_ranges[(0x378 - 0x300) / 8]; /* GMMIO_DIST_BASE */\n+ map_enabled = map_addr & 1;\n+ map_addr &= MAKE_64BIT_MASK(32, 8);\n+ s->ioc_ranges[(0x378 - 0x300) / 8] = map_addr | map_enabled;\n+\n+ map_route = s->ioc_ranges[(0x388 - 0x300) / 8] >> 58; /* GMMIO_DIST_ROUTE */\n+ map_route = MIN(MAX(map_route, 29), 33); /* between 4-16 GB total */\n+ map_size = 1ULL << map_route; /* size of each mapping */\n+ align_mask = ~(map_size - 1);\n+\n+ /* make sure the lmmio region is initially turned off */\n+ if (gmmio->enabled) {\n+ memory_region_set_enabled(gmmio, false);\n+ }\n+\n+ /* do sanity checks and calculate mmio size */\n+ map_addr &= align_mask;\n+\n+ /* exit if disabled */\n+ if (!map_enabled) {\n+ return;\n+ }\n+\n+ if (!gmmio->name) {\n+ memory_region_init_io(gmmio, OBJECT(s), &unassigned_io_ops, s,\n+ \"GMMIO\", ROPES_PER_IOC * map_size);\n+ memory_region_add_subregion_overlap(get_system_memory(),\n+ map_addr, gmmio, 1);\n+ }\n+\n+ memory_region_set_address(gmmio, map_addr);\n+ memory_region_set_size(gmmio, ROPES_PER_IOC * map_size);\n+ memory_region_set_enabled(gmmio, true);\n+\n+ for (i = 0; i < ELROY_NUM; i++) {\n+ MemoryRegion *alias;\n+ ElroyState *elroy;\n+ int rope;\n+\n+ elroy = s->elroy[i];\n+ alias = &elroy->gmmio_alias;\n+ rope = elroy_rope_nr[i];\n+ if (alias->enabled) {\n+ memory_region_set_enabled(alias, false);\n+ }\n+\n+ if (!alias->name) {\n+ memory_region_init_alias(alias, OBJECT(elroy),\n+ \"gmmio-alias\", &elroy->pci_mmio, 0, map_size);\n+ memory_region_add_subregion_overlap(gmmio, rope * map_size,\n+ alias, 2);\n+ }\n+\n+ memory_region_set_address(alias, rope * map_size);\n+ memory_region_set_alias_offset(alias, map_addr + rope * map_size);\n+ memory_region_set_size(alias, map_size);\n+ memory_region_set_enabled(alias, true);\n+ }\n+}\n+\n static MemTxResult astro_chip_read_with_attrs(void *opaque, hwaddr addr,\n uint64_t *data, unsigned size,\n MemTxAttrs attrs)\n@@ -775,6 +841,9 @@ static MemTxResult astro_chip_write_with_attrs(void *opaque, hwaddr addr,\n if (addr >= 0x360 && addr <= 0x370 + 7) {\n adjust_LMMIO_mapping(s);\n }\n+ if (addr >= 0x378 && addr <= 0x388 + 7) {\n+ adjust_GMMIO_mapping(s);\n+ }\n break;\n case 0x10200:\n case 0x10220:\n", "prefixes": [ "PULL", "5/8" ] }