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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 1AFAFC982C7 for ; Wed, 16 Sep 2026 13:58:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OqkS2lVCkR+RRzYZK7tG4Fvjk0DFeQjDq3VT5XC2GzU=; b=1stdgroOa+ekbB rylEE36HuEE0RgWpghOgqA6oW7AT+oMIhUgsud9Y1DJjKXc1qLap+KIJ5J6aUREjDLP4xd++VjO4M VLiX/Qf+Yi5NXjokh1HA+U647kVEsBITiv5W3OY6hfAA5P65esBtsRKYhgylATMTGJIh1h54IOUPG rED4QRBaA9KSYDy5deFasYbA69Ya/nRqFJbLQDQs7/tk7WG201O16xudLgUm95Lcc57mB4S4tZuxC flIhBNOKDG1d4Sm7fcsYUnKds2pHpn9g1AvDzxHsMuewsfyYE3+cv3H8yM4ylwLj3hYJFj3JyX4Ya aYRzHBTG9iQeXJx1NQjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6q9s-00000009LsE-3Ulp; Wed, 16 Sep 2026 13:58:44 +0000 Received: from mgamail.intel.com ([198.175.65.19]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6q9n-00000009Lqf-2MDb for linux-mtd@lists.infradead.org; Wed, 16 Sep 2026 13:58:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789567119; x=1821103119; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=r6J6OMUuexc90xruyZevzc+hksoDZaaD+TsUNdnaTAg=; b=KrvTzmVs34ieDy0NqKuW4lPNXKy4bSpkEhE9vqeb8nxZry2PpMUpVdRO fv3v6CiniJjlz9SsWBhGeD0sY1CxSUn7MLy2EsmCV/X8GEkfNNK9ltkfV QfSkQeMgLdjBc8DYOIu1Xv+ACsHwfIux7cBKPUudY1RR/sCBCWUzkgO+z AYXc8aJMw9UC68FX2xGZAbeGb9I76omicDBoj66/g6w9vcWvAUsiIXaak PnH3PK4nm0URoLvz34Uy8nOs0EKhkq96MTMu46FfeXxo4EGgEwdblcKgN dJELE7fFi2zRXmc5oisCYbuKjWgxRM6NDWPiJkP6ybyhOiXBq4IDm2Te5 g==; X-CSE-ConnectionGUID: OF6OYgxiSOOyJGbXMkQFMQ== X-CSE-MsgGUID: FgQZRVMNTT2Jtku5sMcJeA== X-IronPort-AV: E=McAfee;i="6800,10657,11905"; a="89881963" X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="89881963" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 06:58:39 -0700 X-CSE-ConnectionGUID: y+1ySo3ATyiH3qc3EjZNlg== X-CSE-MsgGUID: /8tjTf7vQxSpqBxablUU0Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="277475774" Received: from sannilnx-dsk.jer.intel.com (HELO [127.0.1.1]) ([10.12.231.107]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 06:58:36 -0700 From: Alexander Usyskin Date: Wed, 16 Sep 2026 16:58:16 +0300 Subject: [PATCH v2 2/2] drm/xe/nvm: define survivabilty partition MIME-Version: 1.0 Message-Id: <20260916-cri_surviv-v2-2-7de1b5328204@intel.com> References: <20260916-cri_surviv-v2-0-7de1b5328204@intel.com> In-Reply-To: <20260916-cri_surviv-v2-0-7de1b5328204@intel.com> To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Matthew Brost , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Rodrigo Vivi , David Airlie , Simona Vetter Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Menachem Adin , Alexander Usyskin X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1789567108; l=2014; i=alexander.usyskin@intel.com; s=20260315; h=from:subject:message-id; bh=r6J6OMUuexc90xruyZevzc+hksoDZaaD+TsUNdnaTAg=; b=Am8KStxYAynVDvH7dT+OdnRw/Ic6z/7dUnqsjX3cp/VW5kJv55QASSXI+waec1DbMiJwR2w1g yfhsqlTE/qIAdqi8Y5Sh8/Wdv1VocbAeLjl7CKsBbvOIjv9FNnmWwWw X-Developer-Key: i=alexander.usyskin@intel.com; a=ed25519; pk=X+qoF/nFCdDOV04IForWSxnkyoCAbUE10egZi6PSfcU= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260916_065840_390040_CEAC1838 X-CRM114-Status: GOOD ( 11.03 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Define 8M survivability partition for CRI when storage is open for write override. Signed-off-by: Alexander Usyskin --- drivers/gpu/drm/xe/xe_nvm.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_nvm.c b/drivers/gpu/drm/xe/xe_nvm.c index 51a1a431ad85..783c3103a8a4 100644 --- a/drivers/gpu/drm/xe/xe_nvm.c +++ b/drivers/gpu/drm/xe/xe_nvm.c @@ -56,10 +56,11 @@ static bool xe_nvm_non_posted_erase(struct xe_device *xe) } } -static bool xe_nvm_writable_override(struct xe_device *xe) +static bool xe_nvm_writable_override(struct xe_device *xe, size_t *survivability_size) { struct xe_mmio *mmio = xe_root_tile_mmio(xe); bool writable_override; + size_t s_size = 0; struct xe_reg reg; u32 test_bit, test_val; @@ -68,6 +69,7 @@ static bool xe_nvm_writable_override(struct xe_device *xe) reg = PCODE_SCRATCH(0); test_bit = FDO_MODE; test_val = FDO_MODE; + s_size = SZ_8M; break; case XE_BATTLEMAGE: reg = HECI_FWSTS2(DG2_GSC_HECI2_BASE); @@ -91,12 +93,17 @@ static bool xe_nvm_writable_override(struct xe_device *xe) break; default: drm_err(&xe->drm, "Unknown platform\n"); + *survivability_size = 0; return true; } writable_override = (xe_mmio_read32(mmio, reg) & test_bit) == test_val; - if (writable_override) + if (writable_override) { drm_info(&xe->drm, "NVM access overridden by jumper\n"); + *survivability_size = s_size; + } else { + *survivability_size = 0; + } return writable_override; } @@ -143,7 +150,7 @@ int xe_nvm_init(struct xe_device *xe) if (!nvm) return -ENOMEM; - nvm->writable_override = xe_nvm_writable_override(xe); + nvm->writable_override = xe_nvm_writable_override(xe, &nvm->survivability_size); nvm->non_posted_erase = xe_nvm_non_posted_erase(xe); nvm->bar.parent = &pdev->resource[0]; nvm->bar.start = GEN12_GUNIT_NVM_BASE + pdev->resource[0].start; -- 2.53.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/