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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E93FC3A5A7 for ; Thu, 8 Dec 2022 15:15:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230287AbiLHPPP (ORCPT ); Thu, 8 Dec 2022 10:15:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229932AbiLHPOY (ORCPT ); Thu, 8 Dec 2022 10:14:24 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A86AAABA15 for ; Thu, 8 Dec 2022 07:14:18 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 02351CE24C0 for ; Thu, 8 Dec 2022 15:14:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EB12C433C1; Thu, 8 Dec 2022 15:14:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670512455; bh=kqnJh32428fEtQQnluf14oKM86g0ErJo5Wv73mAYI7I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=igZeISUToq2SvC+PazVTJLrjcGauZWwZlAuV0owz8QbRIiO1/tssi7+zKg2qApZ40 lIAvImA8IkDniGVJVwFjHT3sKqw8f3Hyb6RPgmTJWWctCdEtxvNHJPH8itlm3+57f0 yAoMwgEow7fjb5vcp6pQ/kR/RXLQwJmyMcP0Dp4aNUfRilitsQDz1rntwyIOBLxbyN f+3fL2G8Tmsx0Hr2YGRmprpoHBaByDlbtvsKxtXj+axefhUWbDt95w3Xr4TV1ss7bo I4KWdQjqPTbZ3jaujyaI2N2xOjDdLJYAtP7epqRMohPUuHRoB2FSMfkCGxJlvBFUaN c6zR+RUhhOUOg== From: Oded Gabbay To: linux-kernel@vger.kernel.org Cc: Ofir Bitton Subject: [PATCH 15/26] habanalabs/gaudi2: support abrupt device reset event Date: Thu, 8 Dec 2022 17:13:39 +0200 Message-Id: <20221208151350.1833823-15-ogabbay@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221208151350.1833823-1-ogabbay@kernel.org> References: <20221208151350.1833823-1-ogabbay@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ofir Bitton In certain scenarios, firmware might encounter a fatal event for which a device reset is required. Hence, a proper notification is needed for driver to be aware and initiate a reset sequence. In secured environments the reset will be performed by firmware without an explicit request from the driver. Signed-off-by: Ofir Bitton Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/gaudi2/gaudi2.c | 1 + drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h | 1 + .../habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h | 2 ++ 3 files changed, 4 insertions(+) diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index 8373239ad1bc..ba3b0ae76ebf 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -9226,6 +9226,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent break; case GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED: + case GAUDI2_EVENT_DEV_RESET_REQ: event_mask |= HL_NOTIFIER_EVENT_GENERAL_HW_ERR; error_count = GAUDI2_NA_EVENT_CAUSE; is_critical = true; diff --git a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h index 305b576222e6..50852cc80373 100644 --- a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h +++ b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_events.h @@ -958,6 +958,7 @@ enum gaudi2_async_event_id { GAUDI2_EVENT_CPU11_STATUS_NIC11_ENG1 = 1318, GAUDI2_EVENT_ARC_DCCM_FULL = 1319, GAUDI2_EVENT_CPU_FP32_NOT_SUPPORTED = 1320, + GAUDI2_EVENT_DEV_RESET_REQ = 1321, GAUDI2_EVENT_SIZE, }; diff --git a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h index d510cb10c883..82be01bea98e 100644 --- a/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h +++ b/drivers/misc/habanalabs/include/gaudi2/gaudi2_async_ids_map_extended.h @@ -2665,6 +2665,8 @@ static struct gaudi2_async_events_ids_map gaudi2_irq_map_table[] = { .msg = 1, .reset = 0, .name = "ARC_DCCM_FULL" }, { .fc_id = 1320, .cpu_id = 626, .valid = 1, .msg = 1, .reset = 1, .name = "FP32_NOT_SUPPORTED" }, + { .fc_id = 1321, .cpu_id = 627, .valid = 1, + .msg = 1, .reset = 1, .name = "DEV_RESET_REQ" }, }; #endif /* __GAUDI2_ASYNC_IDS_MAP_EVENTS_EXT_H_ */ -- 2.25.1