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 X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27931C433E6 for ; Sat, 6 Feb 2021 14:45:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D907864EEB for ; Sat, 6 Feb 2021 14:45:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230261AbhBFOpA (ORCPT ); Sat, 6 Feb 2021 09:45:00 -0500 Received: from mga01.intel.com ([192.55.52.88]:38614 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229506AbhBFOof (ORCPT ); Sat, 6 Feb 2021 09:44:35 -0500 IronPort-SDR: a2qNEI5UXs4KfVIVKO5WH4im873sfSpEINnr1jp4CQJBAi5D8dWUEwQ3CVGdvPmPc1wlODPiEU 0BsU+y+Kv/Tw== X-IronPort-AV: E=McAfee;i="6000,8403,9886"; a="200566038" X-IronPort-AV: E=Sophos;i="5.81,158,1610438400"; d="scan'208";a="200566038" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Feb 2021 06:43:43 -0800 IronPort-SDR: HGqnJti6aRK6R4Nn8qJg7qmkjRQmtiWxGRDKjfLy4uCQ1fk2/EpLmfHvLhYnCXzit/JDG5i+MU 54uCHU348rqg== X-IronPort-AV: E=Sophos;i="5.81,158,1610438400"; d="scan'208";a="394360222" Received: from twinkler-lnx.jer.intel.com ([10.12.91.138]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Feb 2021 06:43:42 -0800 From: Tomas Winkler To: Greg Kroah-Hartman Cc: Alexander Usyskin , linux-kernel@vger.kernel.org, Tomas Winkler Subject: [char-misc-next 4/6] mei: hbm: add client dma hbm messages Date: Sat, 6 Feb 2021 16:43:23 +0200 Message-Id: <20210206144325.25682-4-tomas.winkler@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210206144325.25682-1-tomas.winkler@intel.com> References: <20210206144325.25682-1-tomas.winkler@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexander Usyskin Define structures for client DMA HBM protocol. The protocol requires passing dma buffer address and the buffer id. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler --- drivers/misc/mei/hw.h | 53 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index 9577a2cc0733..b10606550613 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -142,6 +142,12 @@ #define MEI_HBM_CAPABILITIES_REQ_CMD 0x13 #define MEI_HBM_CAPABILITIES_RES_CMD 0x93 +#define MEI_HBM_CLIENT_DMA_MAP_REQ_CMD 0x14 +#define MEI_HBM_CLIENT_DMA_MAP_RES_CMD 0x94 + +#define MEI_HBM_CLIENT_DMA_UNMAP_REQ_CMD 0x15 +#define MEI_HBM_CLIENT_DMA_UNMAP_RES_CMD 0x95 + /* * MEI Stop Reason * used by hbm_host_stop_request.reason @@ -679,4 +685,51 @@ struct hbm_capability_response { u8 capability_granted[3]; } __packed; +/** + * struct hbm_client_dma_map_request - client dma map request from host to fw + * + * @hbm_cmd: bus message command header + * @client_buffer_id: client buffer id + * @reserved: reserved + * @address_lsb: DMA address LSB + * @address_msb: DMA address MSB + * @size: DMA size + */ +struct hbm_client_dma_map_request { + u8 hbm_cmd; + u8 client_buffer_id; + u8 reserved[2]; + u32 address_lsb; + u32 address_msb; + u32 size; +} __packed; + +/** + * struct hbm_client_dma_unmap_request + * client dma unmap request from the host to the firmware + * + * @hbm_cmd: bus message command header + * @status: unmap status + * @client_buffer_id: client buffer id + * @reserved: reserved + */ +struct hbm_client_dma_unmap_request { + u8 hbm_cmd; + u8 status; + u8 client_buffer_id; + u8 reserved; +} __packed; + +/** + * struct hbm_client_dma_response + * client dma unmap response from the firmware to the host + * + * @hbm_cmd: bus message command header + * @status: command status + */ +struct hbm_client_dma_response { + u8 hbm_cmd; + u8 status; +} __packed; + #endif -- 2.26.2