From patchwork Fri Mar 23 14:47:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wajdeczko X-Patchwork-Id: 10304895 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 5B9B260386 for ; Fri, 23 Mar 2018 14:47:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4C71B28210 for ; Fri, 23 Mar 2018 14:47:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4129D28455; Fri, 23 Mar 2018 14:47:43 +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]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 43D9128210 for ; Fri, 23 Mar 2018 14:47:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 661C66E5B2; Fri, 23 Mar 2018 14:47:40 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 685B66E5B2 for ; Fri, 23 Mar 2018 14:47:39 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Mar 2018 07:47:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,350,1517904000"; d="scan'208";a="37553621" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga003.jf.intel.com with ESMTP; 23 Mar 2018 07:47:37 -0700 Received: from mwajdecz-MOBL1.ger.corp.intel.com (mwajdecz-mobl1.ger.corp.intel.com [172.28.174.31]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id w2NElYMK014077; Fri, 23 Mar 2018 14:47:36 GMT From: Michal Wajdeczko To: intel-gfx@lists.freedesktop.org Date: Fri, 23 Mar 2018 14:47:18 +0000 Message-Id: <20180323144728.61548-4-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.10.1.windows.1 In-Reply-To: <20180323144728.61548-1-michal.wajdeczko@intel.com> References: <20180323144728.61548-1-michal.wajdeczko@intel.com> Subject: [Intel-gfx] [PATCH v4 03/13] drm/i915/guc: Prepare send() function to accept bigger response X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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 This is a preparation step for the upcoming patches. We already can return some small data decoded from the command status, but we will need more in the future. v2: add explicit response buf size v3: squash with helper patch Signed-off-by: Michal Wajdeczko Cc: Oscar Mateo Cc: Michel Thierry Cc: Daniele Ceraolo Spurio Reviewed-by: Michel Thierry #1 --- drivers/gpu/drm/i915/intel_guc.c | 6 ++++-- drivers/gpu/drm/i915/intel_guc.h | 18 ++++++++++++++---- drivers/gpu/drm/i915/intel_guc_ct.c | 7 ++++--- 3 files changed, 22 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index 77bf4e6..a533ff8 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -310,7 +310,8 @@ void intel_guc_init_params(struct intel_guc *guc) intel_uncore_forcewake_put(dev_priv, FORCEWAKE_BLITTER); } -int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len) +int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size) { WARN(1, "Unexpected send: action=%#x\n", *action); return -ENODEV; @@ -319,7 +320,8 @@ int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len) /* * This function implements the MMIO based host to GuC interface. */ -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len) +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size) { struct drm_i915_private *dev_priv = guc_to_i915(guc); u32 status; diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h index 13f3d1d..7ee0732 100644 --- a/drivers/gpu/drm/i915/intel_guc.h +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -88,7 +88,8 @@ struct intel_guc { struct mutex send_mutex; /* GuC's FW specific send function */ - int (*send)(struct intel_guc *guc, const u32 *data, u32 len); + int (*send)(struct intel_guc *guc, const u32 *data, u32 len, + u32 *response_buf, u32 response_buf_size); /* GuC's FW specific notify function */ void (*notify)(struct intel_guc *guc); @@ -97,7 +98,14 @@ struct intel_guc { static inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len) { - return guc->send(guc, action, len); + return guc->send(guc, action, len, NULL, 0); +} + +static inline int +intel_guc_send_and_receive(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size) +{ + return guc->send(guc, action, len, response_buf, response_buf_size); } static inline void intel_guc_notify(struct intel_guc *guc) @@ -140,8 +148,10 @@ static inline u32 intel_guc_ggtt_offset(struct intel_guc *guc, void intel_guc_fini_wq(struct intel_guc *guc); int intel_guc_init(struct intel_guc *guc); void intel_guc_fini(struct intel_guc *guc); -int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len); -int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len); +int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size); +int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size); void intel_guc_to_host_event_handler(struct intel_guc *guc); int intel_guc_sample_forcewake(struct intel_guc *guc); int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset); diff --git a/drivers/gpu/drm/i915/intel_guc_ct.c b/drivers/gpu/drm/i915/intel_guc_ct.c index fa52259..a54bf58 100644 --- a/drivers/gpu/drm/i915/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/intel_guc_ct.c @@ -88,7 +88,7 @@ static int guc_action_register_ct_buffer(struct intel_guc *guc, int err; /* Can't use generic send(), CT registration must go over MMIO */ - err = intel_guc_send_mmio(guc, action, ARRAY_SIZE(action)); + err = intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0); if (err) DRM_ERROR("CT: register %s buffer failed; err=%d\n", guc_ct_buffer_type_to_str(type), err); @@ -107,7 +107,7 @@ static int guc_action_deregister_ct_buffer(struct intel_guc *guc, int err; /* Can't use generic send(), CT deregistration must go over MMIO */ - err = intel_guc_send_mmio(guc, action, ARRAY_SIZE(action)); + err = intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0); if (err) DRM_ERROR("CT: deregister %s buffer failed; owner=%d err=%d\n", guc_ct_buffer_type_to_str(type), owner, err); @@ -408,7 +408,8 @@ static int ctch_send(struct intel_guc *guc, /* * Command Transport (CT) buffer based GuC send function. */ -static int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len) +static int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len, + u32 *response_buf, u32 response_buf_size) { struct intel_guc_ct_channel *ctch = &guc->ct.host_channel; u32 status = ~0; /* undefined */