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 B855FC433F5 for ; Thu, 27 Jan 2022 12:05:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240726AbiA0MFr (ORCPT ); Thu, 27 Jan 2022 07:05:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236300AbiA0MFp (ORCPT ); Thu, 27 Jan 2022 07:05:45 -0500 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 03ACDC061714 for ; Thu, 27 Jan 2022 04:05:45 -0800 (PST) Received: by mail-lf1-x135.google.com with SMTP id n8so4912396lfq.4 for ; Thu, 27 Jan 2022 04:05:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=8vm1E71F2uByMj2KZTvDJ3fTHLhMzGhMUgIxJrXZsp4=; b=A4Z0B38tFCdnTnwmo8i7Pii7TfHPDvY+ASacGfyJebTmdFyPbtTWc+TpMGoyHjYvOM pHt00wStZDe/K6oskhDPJycAlhmb4U6c6XSYxGVdKDe2bu1ITOmRFTpWGIB3U1iUM7mZ DDqGZs/pjopDoq7baQ59r268Rxy5Qz9dy0UMc6xEo/05ggqDuhxyO0vRTaUgnKwuvvS4 8ibZEQDXpAjFxl//Elyku32Q5ngWSLtNOwCDgzBerRo50xP5owCkQ1nTBDzFgUlZgFq+ dbRYuZ7/Up4sIV0oHItvscaO5Jm2rMhD7w7spbguMTYXY6d6JCosnWwuq2a/AsHmkutj bkAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=8vm1E71F2uByMj2KZTvDJ3fTHLhMzGhMUgIxJrXZsp4=; b=LFJq1cPkrkhEyRaGqXyZLYE970qwfOEZVBg6vKJSaGlaqC2mTGMe3EfwLCjPlaHoBW 6j/V4Ym6p6q6uM+Y1a7EFZJ2vzxA5KBnXF+AunQs0kNJOxzlLyk2r11u+SOXkxwj+aTV HgSVrKkkWmBjcOqCxflWobU7DPGyk2uFlyK21aZTFmlBCaiTfM6m/sV0VSzPTwjAH+us 3HvYEDs3wEv/kKRMC5y85PMspIVQ5fxSckDLWyLn55VQd7AIkwxORkXU7GJODyn0O9KV bxFKBdDINzYJawJQw+B7WCwZtr3A5VSAhmxImyC2JfJ2FQ3AVCO1903eVSjAxoSd3/PO hEMA== X-Gm-Message-State: AOAM530/nT+d7cW3cT+gsvU8A0/36SoLjfl1pZDH7cMVp3WNytM2eVCy AjCFYUmnL9+hzhCzdUWbpII= X-Google-Smtp-Source: ABdhPJwbTzq36KRvgCw0o66FybiSoiVYrW1RKwASrCpIjf0iKTu325bNkBLndiiz42Xc62AHOU4Feg== X-Received: by 2002:a19:700b:: with SMTP id h11mr2571510lfc.377.1643285143412; Thu, 27 Jan 2022 04:05:43 -0800 (PST) Received: from inno-pc.lan (88-115-161-74.elisa-laajakaista.fi. [88.115.161.74]) by smtp.gmail.com with ESMTPSA id b5sm1418722ljk.123.2022.01.27.04.05.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jan 2022 04:05:43 -0800 (PST) From: Zhi Wang X-Google-Original-From: Zhi Wang To: hch@lst.de, jgg@nvidia.com, jani.nikula@linux.intel.com Cc: intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Zhi Wang , Joonas Lahtinen , Vivi Rodrigo , Zhenyu Wang Subject: [PATCH 3/3] i915/gvt: Use the initial HW state snapshot saved in i915 Date: Thu, 27 Jan 2022 07:05:08 -0500 Message-Id: <20220127120508.11330-3-zhi.a.wang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220127120508.11330-1-zhi.a.wang@intel.com> References: <20220127120508.11330-1-zhi.a.wang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The code of saving initial HW state snapshot has been moved into i915. Let the GVT-g core logic use that snapshot. Cc: Christoph Hellwig Cc: Jason Gunthorpe Cc: Jani Nikula Cc: Joonas Lahtinen Cc: Vivi Rodrigo Cc: Zhenyu Wang Cc: Zhi Wang Signed-off-by: Zhi Wang --- drivers/gpu/drm/i915/gvt/firmware.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c index 1a8274a3f4b1..1d55920bfd42 100644 --- a/drivers/gpu/drm/i915/gvt/firmware.c +++ b/drivers/gpu/drm/i915/gvt/firmware.c @@ -66,22 +66,16 @@ static struct bin_attribute firmware_attr = { .mmap = NULL, }; -static int mmio_snapshot_handler(struct intel_gvt *gvt, u32 offset, void *data) -{ - *(u32 *)(data + offset) = intel_uncore_read_notrace(gvt->gt->uncore, - _MMIO(offset)); - return 0; -} - static int expose_firmware_sysfs(struct intel_gvt *gvt) { struct intel_gvt_device_info *info = &gvt->device_info; - struct pci_dev *pdev = to_pci_dev(gvt->gt->i915->drm.dev); + struct drm_i915_private *i915 = gvt->gt->i915; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); struct gvt_firmware_header *h; void *firmware; void *p; unsigned long size, crc32_start; - int i, ret; + int ret; size = sizeof(*h) + info->mmio_size + info->cfg_space_size; firmware = vzalloc(size); @@ -99,17 +93,16 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) p = firmware + h->cfg_space_offset; - for (i = 0; i < h->cfg_space_size; i += 4) - pci_read_config_dword(pdev, i, p + i); - - memcpy(gvt->firmware.cfg_space, p, info->cfg_space_size); + memcpy(gvt->firmware.cfg_space, i915->vgpu.initial_cfg_space, + info->cfg_space_size); + memcpy(p, gvt->firmware.cfg_space, info->cfg_space_size); p = firmware + h->mmio_offset; - /* Take a snapshot of hw mmio registers. */ - intel_gvt_for_each_tracked_mmio(gvt, mmio_snapshot_handler, p); + memcpy(gvt->firmware.mmio, i915->vgpu.initial_mmio, + info->mmio_size); - memcpy(gvt->firmware.mmio, p, info->mmio_size); + memcpy(p, gvt->firmware.mmio, info->mmio_size); crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4; h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start); -- 2.25.1