From patchwork Tue May 25 21:15:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Brost X-Patchwork-Id: 12280095 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=-16.8 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 9D410C4707F for ; Tue, 25 May 2021 20:58:29 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 63D9C6140F for ; Tue, 25 May 2021 20:58:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 63D9C6140F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E0C536EB0C; Tue, 25 May 2021 20:57:58 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 081FE6EADD; Tue, 25 May 2021 20:57:54 +0000 (UTC) IronPort-SDR: Vi9W/9wRrfgjgZ9MiKEQTMDnUaDMAqe3VvFi0bU5/PbmOD6QRduBCSIdqyva91GImgIc6IKAa2 yM6ZyS7uA7BA== X-IronPort-AV: E=McAfee;i="6200,9189,9995"; a="202318069" X-IronPort-AV: E=Sophos;i="5.82,329,1613462400"; d="scan'208";a="202318069" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 May 2021 13:57:53 -0700 IronPort-SDR: uxhuGewLdkgVe8LH6oXJY0gL64L8sPaUWU7Z6Axvqv7pOs3irbRqSPlKlL0yt4brfdOBZIgzZP U+dbPWpcMI9A== X-IronPort-AV: E=Sophos;i="5.82,329,1613462400"; d="scan'208";a="443603543" Received: from dhiatt-server.jf.intel.com ([10.54.81.3]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 May 2021 13:57:53 -0700 From: Matthew Brost To: , Subject: [PATCH 08/17] drm/i915/guc: Only rely on own CTB size Date: Tue, 25 May 2021 14:15:32 -0700 Message-Id: <20210525211541.87696-9-matthew.brost@intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210525211541.87696-1-matthew.brost@intel.com> References: <20210525211541.87696-1-matthew.brost@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michal.Wajdeczko@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Michal Wajdeczko In upcoming GuC firmware, CTB size will be removed from the CTB descriptor so we must keep it locally for any calculations. While around, improve some debug messages and helpers. Signed-off-by: Michal Wajdeczko Signed-off-by: Matthew Brost Reviewed-by: Matthew Brost --- drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 55 +++++++++++++++++------ drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h | 2 + 2 files changed, 43 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index 4cc8c0b71699..dbece569fbe4 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -90,6 +90,24 @@ static void guc_ct_buffer_desc_init(struct guc_ct_buffer_desc *desc, desc->owner = CTB_OWNER_HOST; } +static void guc_ct_buffer_reset(struct intel_guc_ct_buffer *ctb, u32 cmds_addr) +{ + guc_ct_buffer_desc_init(ctb->desc, cmds_addr, ctb->size); +} + +static void guc_ct_buffer_init(struct intel_guc_ct_buffer *ctb, + struct guc_ct_buffer_desc *desc, + u32 *cmds, u32 size) +{ + GEM_BUG_ON(size % 4); + + ctb->desc = desc; + ctb->cmds = cmds; + ctb->size = size; + + guc_ct_buffer_reset(ctb, 0); +} + static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 desc_addr, u32 type) @@ -148,7 +166,10 @@ static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type) int intel_guc_ct_init(struct intel_guc_ct *ct) { struct intel_guc *guc = ct_to_guc(ct); + struct guc_ct_buffer_desc *desc; + u32 blob_size; void *blob; + u32 *cmds; int err; int i; @@ -176,19 +197,24 @@ int intel_guc_ct_init(struct intel_guc_ct *ct) * other code will need updating as well. */ - err = intel_guc_allocate_and_map_vma(guc, PAGE_SIZE, &ct->vma, &blob); + blob_size = PAGE_SIZE; + err = intel_guc_allocate_and_map_vma(guc, blob_size, &ct->vma, &blob); if (unlikely(err)) { - CT_ERROR(ct, "Failed to allocate CT channel (err=%d)\n", err); + CT_PROBE_ERROR(ct, "Failed to allocate %u for CTB data (%pe)\n", + blob_size, ERR_PTR(err)); return err; } - CT_DEBUG(ct, "vma base=%#x\n", intel_guc_ggtt_offset(guc, ct->vma)); + CT_DEBUG(ct, "base=%#x size=%u\n", intel_guc_ggtt_offset(guc, ct->vma), blob_size); /* store pointers to desc and cmds */ for (i = 0; i < ARRAY_SIZE(ct->ctbs); i++) { GEM_BUG_ON((i != CTB_SEND) && (i != CTB_RECV)); - ct->ctbs[i].desc = blob + PAGE_SIZE/4 * i; - ct->ctbs[i].cmds = blob + PAGE_SIZE/4 * i + PAGE_SIZE/2; + + desc = blob + PAGE_SIZE / 4 * i; + cmds = blob + PAGE_SIZE / 4 * i + PAGE_SIZE / 2; + + guc_ct_buffer_init(&ct->ctbs[i], desc, cmds, PAGE_SIZE / 4); } return 0; @@ -217,7 +243,7 @@ void intel_guc_ct_fini(struct intel_guc_ct *ct) int intel_guc_ct_enable(struct intel_guc_ct *ct) { struct intel_guc *guc = ct_to_guc(ct); - u32 base, cmds, size; + u32 base, cmds; int err; int i; @@ -232,10 +258,11 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct) */ for (i = 0; i < ARRAY_SIZE(ct->ctbs); i++) { GEM_BUG_ON((i != CTB_SEND) && (i != CTB_RECV)); + cmds = base + PAGE_SIZE / 4 * i + PAGE_SIZE / 2; - size = PAGE_SIZE / 4; - CT_DEBUG(ct, "%d: addr=%#x size=%u\n", i, cmds, size); - guc_ct_buffer_desc_init(ct->ctbs[i].desc, cmds, size); + CT_DEBUG(ct, "%d: cmds addr=%#x\n", i, cmds); + + guc_ct_buffer_reset(&ct->ctbs[i], cmds); } /* @@ -259,7 +286,7 @@ int intel_guc_ct_enable(struct intel_guc_ct *ct) err_deregister: ct_deregister_buffer(ct, INTEL_GUC_CT_BUFFER_TYPE_RECV); err_out: - CT_PROBE_ERROR(ct, "Failed to open channel (err=%d)\n", err); + CT_PROBE_ERROR(ct, "Failed to enable CTB (%pe)\n", ERR_PTR(err)); return err; } @@ -314,7 +341,7 @@ static int ct_write(struct intel_guc_ct *ct, struct guc_ct_buffer_desc *desc = ctb->desc; u32 head = desc->head; u32 tail = desc->tail; - u32 size = desc->size; + u32 size = ctb->size; u32 used; u32 header; u32 *cmds = ctb->cmds; @@ -323,7 +350,7 @@ static int ct_write(struct intel_guc_ct *ct, if (unlikely(desc->is_in_error)) return -EPIPE; - if (unlikely(!IS_ALIGNED(head | tail | size, 4) || + if (unlikely(!IS_ALIGNED(head | tail, 4) || (tail | head) >= size)) goto corrupted; @@ -530,7 +557,7 @@ static int ct_read(struct intel_guc_ct *ct, u32 *data) struct guc_ct_buffer_desc *desc = ctb->desc; u32 head = desc->head; u32 tail = desc->tail; - u32 size = desc->size; + u32 size = ctb->size; u32 *cmds = ctb->cmds; s32 available; unsigned int len; @@ -539,7 +566,7 @@ static int ct_read(struct intel_guc_ct *ct, u32 *data) if (unlikely(desc->is_in_error)) return -EPIPE; - if (unlikely(!IS_ALIGNED(head | tail | size, 4) || + if (unlikely(!IS_ALIGNED(head | tail, 4) || (tail | head) >= size)) goto corrupted; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h index 494a51a5200f..4009e2dd0de4 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h @@ -29,10 +29,12 @@ struct intel_guc; * * @desc: pointer to the buffer descriptor * @cmds: pointer to the commands buffer + * @size: size of the commands buffer */ struct intel_guc_ct_buffer { struct guc_ct_buffer_desc *desc; u32 *cmds; + u32 size; };