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put:
Update a patch.

GET /api/1.1/patches/2223719/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2223719,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223719/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260416014928.1279360-13-jamin_lin@aspeedtech.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/1.1/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": ""
    },
    "msgid": "<20260416014928.1279360-13-jamin_lin@aspeedtech.com>",
    "date": "2026-04-16T01:49:56",
    "name": "[v3,12/17] hw/usb/hcd-ehci: Implement 64-bit siTD descriptor addressing",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "cf4c3eaefcf442f17eac0922d4201979ffb7b97d",
    "submitter": {
        "id": 81768,
        "url": "http://patchwork.ozlabs.org/api/1.1/people/81768/?format=api",
        "name": "Jamin Lin",
        "email": "jamin_lin@aspeedtech.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260416014928.1279360-13-jamin_lin@aspeedtech.com/mbox/",
    "series": [
        {
            "id": 500066,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/500066/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500066",
            "date": "2026-04-16T01:49:32",
            "name": "hw/usb/ehci: Add 64-bit descriptor addressing support",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/500066/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2223719/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2223719/checks/",
    "tags": {},
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        "From": "Jamin Lin <jamin_lin@aspeedtech.com>",
        "To": "\"philmd@linaro.org\" <philmd@linaro.org>, =?iso-8859-1?q?C=E9dric_Le_Goat?=\n\t=?iso-8859-1?q?er?= <clg@kaod.org>, Peter Maydell <peter.maydell@linaro.org>,\n Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>,\n Kane Chen <kane_chen@aspeedtech.com>,\n Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>,\n \"open list:ASPEED BMCs\" <qemu-arm@nongnu.org>,\n \"open list:All patches CC here\" <qemu-devel@nongnu.org>",
        "CC": "Jamin Lin <jamin_lin@aspeedtech.com>, Troy Lee <troy_lee@aspeedtech.com>,\n \"flwu@google.com\" <flwu@google.com>, \"nabihestefan@google.com\"\n <nabihestefan@google.com>",
        "Subject": "[PATCH v3 12/17] hw/usb/hcd-ehci: Implement 64-bit siTD descriptor\n addressing",
        "Thread-Topic": "[PATCH v3 12/17] hw/usb/hcd-ehci: Implement 64-bit siTD\n descriptor addressing",
        "Thread-Index": "AQHczUNTnR/OW0Fgz0S9st3V80uVyg==",
        "Date": "Thu, 16 Apr 2026 01:49:56 +0000",
        "Message-ID": "<20260416014928.1279360-13-jamin_lin@aspeedtech.com>",
        "References": "<20260416014928.1279360-1-jamin_lin@aspeedtech.com>",
        "In-Reply-To": "<20260416014928.1279360-1-jamin_lin@aspeedtech.com>",
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        "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"
    },
    "content": "EHCI supports 64-bit control data structure addressing when the\n64-bit Addressing Capability bit in HCCPARAMS is set. In that mode,\nthe CTRLDSSEGMENT register provides the upper 32 bits that are\nconcatenated with 32-bit link pointer values to form full 64-bit\ndescriptor addresses (EHCI 1.0, section 2.3.5 and Appendix B).\n\nsiTD link pointers are stored as 32-bit values and must be expanded\nto full 64-bit descriptor addresses when 64-bit mode is enabled.\nUpdate the siTD traversal path to use ehci_get_desc_addr() when\nfollowing link pointers.\n\nAppendix B also defines high dword fields for siTD buffer pointers.\nAdd bufptr_hi[] fields to EHCIsitd and use ehci_get_buf_addr() to\nconstruct full 64-bit buffer addresses from bufptr[] and bufptr_hi[]\nwhen processing split isochronous transfers. This allows buffers\nabove 4GB to be handled correctly.\n\nWhen 64-bit capability is disabled, descriptor and buffer addresses\nremain 32-bit and existing behaviour is unchanged.\n\nSigned-off-by: Jamin Lin <jamin_lin@aspeedtech.com>\n---\n hw/usb/hcd-ehci.h | 1 +\n hw/usb/hcd-ehci.c | 2 +-\n 2 files changed, 2 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h\nindex af8c080c60..6406f536e8 100644\n--- a/hw/usb/hcd-ehci.h\n+++ b/hw/usb/hcd-ehci.h\n@@ -109,6 +109,7 @@ typedef struct EHCIsitd {\n #define SITD_BUFPTR_TCNT_MASK         0x00000007\n \n     uint32_t backptr;                 /* Standard next link pointer */\n+    uint32_t bufptr_hi[2];\n } EHCIsitd;\n \n /*\ndiff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c\nindex 3db1c25e4d..e1d5ecbad7 100644\n--- a/hw/usb/hcd-ehci.c\n+++ b/hw/usb/hcd-ehci.c\n@@ -1791,7 +1791,7 @@ static int ehci_state_fetchsitd(EHCIState *ehci, int async)\n         warn_report(\"Skipping active siTD\");\n     }\n \n-    ehci_set_fetch_addr(ehci, async, sitd.next);\n+    ehci_set_fetch_addr(ehci, async, ehci_get_desc_addr(ehci, sitd.next));\n     ehci_set_state(ehci, async, EST_FETCHENTRY);\n     return 1;\n }\n",
    "prefixes": [
        "v3",
        "12/17"
    ]
}