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GET /api/patches/2070368/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2070368,
    "url": "http://patchwork.ozlabs.org/api/patches/2070368/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20250409023711.2960618-8-maobibo@loongson.cn/",
    "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": "<20250409023711.2960618-8-maobibo@loongson.cn>",
    "list_archive_url": null,
    "date": "2025-04-09T02:37:02",
    "name": "[v3,07/16] hw/intc/loongarch_pch: Use generic read callback for iomem32_low region",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "e63e9baa3839fa25ebf30a3f707447064f533d66",
    "submitter": {
        "id": 78914,
        "url": "http://patchwork.ozlabs.org/api/people/78914/?format=api",
        "name": "Bibo Mao",
        "email": "maobibo@loongson.cn"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20250409023711.2960618-8-maobibo@loongson.cn/mbox/",
    "series": [
        {
            "id": 451861,
            "url": "http://patchwork.ozlabs.org/api/series/451861/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=451861",
            "date": "2025-04-09T02:37:00",
            "name": "hw/intc/loongarch_pch: Cleanup with memory region ops",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/451861/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2070368/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2070368/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 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)",
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            "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 4ZXRw12QP7z1yHS\n\tfor <incoming@patchwork.ozlabs.org>; Wed,  9 Apr 2025 12:38:41 +1000 (AEST)",
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            "from mail.loongson.cn ([114.242.206.163])\n by eggs.gnu.org with esmtp (Exim 4.90_1)\n (envelope-from <maobibo@loongson.cn>) id 1u2LJc-0007nI-CA\n for qemu-devel@nongnu.org; Tue, 08 Apr 2025 22:37:27 -0400",
            "from loongson.cn (unknown [10.2.10.34])\n by gateway (Coremail) with SMTP id _____8AxquBd3fVnHK+1AA--.63889S3;\n Wed, 09 Apr 2025 10:37:17 +0800 (CST)",
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        ],
        "From": "Bibo Mao <maobibo@loongson.cn>",
        "To": "Song Gao <gaosong@loongson.cn>",
        "Cc": "Jiaxun Yang <jiaxun.yang@flygoat.com>,\n\tqemu-devel@nongnu.org",
        "Subject": "[PATCH v3 07/16] hw/intc/loongarch_pch: Use generic read callback for\n iomem32_low region",
        "Date": "Wed,  9 Apr 2025 10:37:02 +0800",
        "Message-Id": "<20250409023711.2960618-8-maobibo@loongson.cn>",
        "X-Mailer": "git-send-email 2.39.3",
        "In-Reply-To": "<20250409023711.2960618-1-maobibo@loongson.cn>",
        "References": "<20250409023711.2960618-1-maobibo@loongson.cn>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "X-CM-TRANSID": "qMiowMBxLsdY3fVnnsR1AA--.28294S9",
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        "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org",
        "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"
    },
    "content": "For memory region iomem32_low, generic read callback is used.\n\nSigned-off-by: Bibo Mao <maobibo@loongson.cn>\n---\n hw/intc/loongarch_pch_pic.c | 67 ++++++++++++++++++++++++++-----------\n 1 file changed, 47 insertions(+), 20 deletions(-)",
    "diff": "diff --git a/hw/intc/loongarch_pch_pic.c b/hw/intc/loongarch_pch_pic.c\nindex 421ede7bee..d303ce0667 100644\n--- a/hw/intc/loongarch_pch_pic.c\n+++ b/hw/intc/loongarch_pch_pic.c\n@@ -7,6 +7,7 @@\n \n #include \"qemu/osdep.h\"\n #include \"qemu/bitops.h\"\n+#include \"qemu/log.h\"\n #include \"hw/irq.h\"\n #include \"hw/intc/loongarch_pch_pic.h\"\n #include \"trace.h\"\n@@ -71,47 +72,73 @@ static void pch_pic_irq_handler(void *opaque, int irq, int level)\n     pch_pic_update_irq(s, mask, level);\n }\n \n-static uint64_t loongarch_pch_pic_low_readw(void *opaque, hwaddr addr,\n-                                            unsigned size)\n+static uint64_t pch_pic_read(void *opaque, hwaddr addr, uint64_t field_mask)\n {\n     LoongArchPICCommonState *s = LOONGARCH_PIC_COMMON(opaque);\n     uint64_t val = 0;\n+    uint32_t offset;\n \n+    offset = addr & 7;\n+    addr -= offset;\n     switch (addr) {\n     case PCH_PIC_INT_ID:\n-        val = s->id.data & UINT_MAX;\n-        break;\n-    case PCH_PIC_INT_ID + 4:\n-        val = s->id.data >> 32;\n+        val = s->id.data;\n         break;\n     case PCH_PIC_INT_MASK:\n-        val = (uint32_t)s->int_mask;\n-        break;\n-    case PCH_PIC_INT_MASK + 4:\n-        val = s->int_mask >> 32;\n+        val = s->int_mask;\n         break;\n     case PCH_PIC_INT_EDGE:\n-        val = (uint32_t)s->intedge;\n-        break;\n-    case PCH_PIC_INT_EDGE + 4:\n-        val = s->intedge >> 32;\n+        val = s->intedge;\n         break;\n     case PCH_PIC_HTMSI_EN:\n-        val = (uint32_t)s->htmsi_en;\n-        break;\n-    case PCH_PIC_HTMSI_EN + 4:\n-        val = s->htmsi_en >> 32;\n+        val = s->htmsi_en;\n         break;\n     case PCH_PIC_AUTO_CTRL0:\n-    case PCH_PIC_AUTO_CTRL0 + 4:\n     case PCH_PIC_AUTO_CTRL1:\n-    case PCH_PIC_AUTO_CTRL1 + 4:\n         /* PCH PIC connect to EXTIOI always, discard auto_ctrl access */\n         break;\n     default:\n+        qemu_log_mask(LOG_GUEST_ERROR,\n+                      \"pch_pic_read: Bad address 0x%\"PRIx64\"\\n\", addr);\n+        break;\n+    }\n+\n+    return (val >> (offset * 8)) & field_mask;\n+}\n+\n+static uint64_t loongarch_pch_pic_read(void *opaque, hwaddr addr,\n+                                       unsigned size)\n+{\n+    uint64_t val = 0;\n+\n+    switch (size) {\n+    case 1:\n+        val = pch_pic_read(opaque, addr, UCHAR_MAX);\n+        break;\n+    case 2:\n+        val = pch_pic_read(opaque, addr, USHRT_MAX);\n+        break;\n+    case 4:\n+        val = pch_pic_read(opaque, addr, UINT_MAX);\n+        break;\n+    case 8:\n+        val = pch_pic_read(opaque, addr, UINT64_MAX);\n+        break;\n+    default:\n+        qemu_log_mask(LOG_GUEST_ERROR,\n+                      \"loongarch_pch_pic_read: Bad size %d\\n\", size);\n         break;\n     }\n \n+    return val;\n+}\n+\n+static uint64_t loongarch_pch_pic_low_readw(void *opaque, hwaddr addr,\n+                                            unsigned size)\n+{\n+    uint64_t val;\n+\n+    val = loongarch_pch_pic_read(opaque, addr, size);\n     trace_loongarch_pch_pic_low_readw(size, addr, val);\n     return val;\n }\n",
    "prefixes": [
        "v3",
        "07/16"
    ]
}