From patchwork Fri May 27 19:42:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: akash.goel@intel.com X-Patchwork-Id: 9138897 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D78CE6075A for ; Fri, 27 May 2016 19:31:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7EC927CF9 for ; Fri, 27 May 2016 19:31:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BCE1B28294; Fri, 27 May 2016 19:31:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4B2EC27CF9 for ; Fri, 27 May 2016 19:31:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CDECC6ED13; Fri, 27 May 2016 19:31:23 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 9AFCB6E0DF for ; Fri, 27 May 2016 19:29:58 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP; 27 May 2016 12:29:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,375,1459839600"; d="scan'208";a="986117192" Received: from akashgoe-desktop.iind.intel.com ([10.223.82.36]) by orsmga002.jf.intel.com with ESMTP; 27 May 2016 12:29:56 -0700 From: akash.goel@intel.com To: intel-gfx@lists.freedesktop.org Date: Sat, 28 May 2016 01:12:53 +0530 Message-Id: <1464378183-9433-3-git-send-email-akash.goel@intel.com> X-Mailer: git-send-email 1.9.2 In-Reply-To: <1464378183-9433-1-git-send-email-akash.goel@intel.com> References: <1464378183-9433-1-git-send-email-akash.goel@intel.com> Cc: sourab.gupta@intel.com, Akash Goel Subject: [Intel-gfx] [RFC 02/12] drm/i915: Add GuC ukernel logging related fields to fw interface file X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Sagar Arun Kamble The first page of the GuC log buffer contains state info or meta data which is required to parse the logs contained in the subsequent pages. The structure representing the state info is added to interface file as Driver would need to handle log buffer flush interrupts from GuC. Added an enum for the different message/event types that can be send by the GuC ukernel to Host. Also added 2 new Host to GuC action types to inform GuC when Host has flushed the log buffer and forcefuly cause the GuC to send a new log buffer flush interrupt. Signed-off-by: Sagar Arun Kamble Signed-off-by: Akash Goel --- drivers/gpu/drm/i915/intel_guc_fwif.h | 42 +++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h index 944786d..b85b23f 100644 --- a/drivers/gpu/drm/i915/intel_guc_fwif.h +++ b/drivers/gpu/drm/i915/intel_guc_fwif.h @@ -418,12 +418,48 @@ struct guc_ads { u32 reserved2[4]; } __packed; +/* GuC logging structures */ + +enum guc_log_buffer_type { + GUC_ISR_LOG_BUFFER, + GUC_DPC_LOG_BUFFER, + GUC_CRASH_DUMP_LOG_BUFFER, + GUC_MAX_LOG_BUFFER +}; + +/* + * Below state is used for coordination of retrival of GuC logs + * by i915. read_ptr is where i915 read last. GuC keeps incrementing + * write_ptr on each log entry. When buffer gets half filled and i915 + * has requested interrupt, GuC will set flush_to_file field and raise the + * interrupt. i915 should read the buffer and clear flush_to_file field. + * i915 should also update the read_ptr. +*/ +struct guc_log_buffer_state { + u32 marker[2]; + u32 read_ptr; + u32 write_ptr; + u32 size; + u32 sampled_write_ptr; + union { + struct { + u32 flush_to_file:1; + u32 buffer_full_cnt:4; + u32 reserved:27; + }; + u32 flags; + }; + u32 version; +} __packed; + /* This Action will be programmed in C180 - SOFT_SCRATCH_O_REG */ enum host2guc_action { HOST2GUC_ACTION_DEFAULT = 0x0, HOST2GUC_ACTION_SAMPLE_FORCEWAKE = 0x6, HOST2GUC_ACTION_ALLOCATE_DOORBELL = 0x10, HOST2GUC_ACTION_DEALLOCATE_DOORBELL = 0x20, + HOST2GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE = 0x30, + HOST2GUC_ACTION_FORCE_LOGBUFFERFLUSH = 0x302, HOST2GUC_ACTION_ENTER_S_STATE = 0x501, HOST2GUC_ACTION_EXIT_S_STATE = 0x502, HOST2GUC_ACTION_SLPC_REQUEST = 0x3003, @@ -448,4 +484,10 @@ enum guc2host_status { GUC2HOST_STATUS_GENERIC_FAIL = GUC2HOST_STATUS(0x0000F000) }; +/* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */ +enum guc2host_message { + GUC2HOST_MSG_CRASH_DUMP_POSTED = (1 << 1), + GUC2HOST_MSG_FLUSH_LOG_BUFFER = (1 << 3) +}; + #endif