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GET /api/patches/2194972/?format=api
{ "id": 2194972, "url": "http://patchwork.ozlabs.org/api/patches/2194972/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260210-upstream_rifsc_update-v1-3-74c813fa4862@foss.st.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260210-upstream_rifsc_update-v1-3-74c813fa4862@foss.st.com>", "list_archive_url": null, "date": "2026-02-10T10:26:04", "name": "[3/4] ARM: stm32mp: Fix CID and semaphore check", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "481b98da3da93a25de70da002c9763065aefc254", "submitter": { "id": 80709, "url": "http://patchwork.ozlabs.org/api/people/80709/?format=api", "name": "Patrice Chotard", "email": "patrice.chotard@foss.st.com" }, "delegate": { "id": 56455, "url": "http://patchwork.ozlabs.org/api/users/56455/?format=api", "username": "patrick_delaunay", "first_name": "Patrick", "last_name": "Delaunay", "email": "patrick.delaunay73@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260210-upstream_rifsc_update-v1-3-74c813fa4862@foss.st.com/mbox/", "series": [ { "id": 491643, "url": "http://patchwork.ozlabs.org/api/series/491643/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=491643", "date": "2026-02-10T10:26:01", "name": "ARM: stm32mp: RIFSC bus driver update", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491643/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2194972/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2194972/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "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=foss.st.com header.i=@foss.st.com header.a=rsa-sha256\n header.s=selector2 header.b=oOl/EDyE;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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Ip=[164.130.1.60];\n Helo=[smtpO365.st.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DU6PEPF0000A7E0.eurprd02.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "VI1PR10MB7691", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Gatien Chevallier <gatien.chevallier@foss.st.com>\n\nPeripheral holding CID0 cannot be accessed, remove this completely\nincorrect check. While there, fix and simplify the semaphore checking\nthat should be performed when the CID filtering is enabled.\n\nSigned-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>\nSigned-off-by: Patrice Chotard <patrice.chotard@foss.st.com>\n---\n arch/arm/mach-stm32mp/stm32mp2/rifsc.c | 24 +++++-------------------\n 1 file changed, 5 insertions(+), 19 deletions(-)", "diff": "diff --git a/arch/arm/mach-stm32mp/stm32mp2/rifsc.c b/arch/arm/mach-stm32mp/stm32mp2/rifsc.c\nindex 01ffc9f2798..0ef086bb956 100644\n--- a/arch/arm/mach-stm32mp/stm32mp2/rifsc.c\n+++ b/arch/arm/mach-stm32mp/stm32mp2/rifsc.c\n@@ -141,27 +141,10 @@ static int rifsc_check_access(void *base, u32 id)\n \tcid_reg_value = readl(base + RIFSC_RISC_PER0_CIDCFGR(id));\n \tsem_reg_value = readl(base + RIFSC_RISC_PER0_SEMCR(id));\n \n-\t/*\n-\t * First check conditions for semaphore mode, which doesn't take into\n-\t * account static CID.\n-\t */\n-\tif (cid_reg_value & CIDCFGR_SEMEN)\n-\t\tgoto skip_cid_check;\n-\n-\t/*\n-\t * Skip cid check if CID filtering isn't enabled or filtering is enabled on CID0, which\n-\t * corresponds to whatever CID.\n-\t */\n-\tif (!(cid_reg_value & CIDCFGR_CFEN) ||\n-\t FIELD_GET(RIFSC_RISC_SCID_MASK, cid_reg_value) == RIF_CID0)\n+\t/* Skip cid check if CID filtering isn't enabled */\n+\tif (!(cid_reg_value & CIDCFGR_CFEN))\n \t\tgoto skip_cid_check;\n \n-\t/* Coherency check with the CID configuration */\n-\tif (FIELD_GET(RIFSC_RISC_SCID_MASK, cid_reg_value) != RIF_CID1) {\n-\t\tlog_debug(\"Invalid CID configuration for peripheral %d\\n\", id);\n-\t\treturn -EACCES;\n-\t}\n-\n \t/* Check semaphore accesses */\n \tif (cid_reg_value & CIDCFGR_SEMEN) {\n \t\tif (!(FIELD_GET(RIFSC_RISC_SEMWL_MASK, cid_reg_value) & BIT(RIF_CID1))) {\n@@ -173,6 +156,9 @@ static int rifsc_check_access(void *base, u32 id)\n \t\t\tlog_debug(\"Semaphore unavailable for peripheral %d\\n\", id);\n \t\t\treturn -EACCES;\n \t\t}\n+\t} else if (FIELD_GET(RIFSC_RISC_SCID_MASK, cid_reg_value) != RIF_CID1) {\n+\t\tlog_debug(\"Invalid CID configuration for peripheral %d\\n\", id);\n+\t\treturn -EACCES;\n \t}\n \n skip_cid_check:\n", "prefixes": [ "3/4" ] }