From patchwork Mon Oct 17 09:37:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 13008423 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id F3351C4332F for ; Mon, 17 Oct 2022 09:32:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F08E610ED0E; Mon, 17 Oct 2022 09:32:34 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0DC8A10ED0E; Mon, 17 Oct 2022 09:32:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1665999144; x=1697535144; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=6ZU9PDhvVYa7AEOd0lamaGEe6sVuaqOTNJI83nJvfl8=; b=mnzk/B0X65EPuTA7735U+Ph3/odnje5sF8SrM/9lu5EZ1B5cIZw8r0n2 cp2G17v591DcDK8H9zZb/4zymaNtIDsgzUMXJ3h1VOKK8L60t2MhGzsNH iqnTpUuZ8YYad/cn7BjxCRjLxDFNLlnK9vLOuTWmiZ7eOAOlfLvOombPP 0tWmAzfVLN4H5Uhss4nQ74RyxUB/PiDJHeq5LuyyqzH60CFhdWmAo7czN BdoVs8PFpOkdQNoCxzhgkKPiPIWkst3eDwDVDLkIJV9D24ajzsbAuR8XB WShLagGUGuTIIJV9djFzCHAQHSXexlm55WLUVuZQHeelBLsI4qrryxyV5 Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10502"; a="286142588" X-IronPort-AV: E=Sophos;i="5.95,191,1661842800"; d="scan'208";a="286142588" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Oct 2022 02:32:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10502"; a="717431199" X-IronPort-AV: E=Sophos;i="5.95,191,1661842800"; d="scan'208";a="717431199" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.132]) by FMSMGA003.fm.intel.com with ESMTP; 17 Oct 2022 02:32:19 -0700 From: Zhao Liu To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Matthew Auld , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Nirmoy Das , Maarten Lankhorst , Chris Wilson , =?utf-8?q?Christian_K=C3=B6nig?= , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Date: Mon, 17 Oct 2022 17:37:16 +0800 Message-Id: <20221017093726.2070674-1-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/9] drm/i915: Replace kmap_atomic() with kmap_local_page() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Fabio M . De Francesco" , Ira Weiny , Zhao Liu , Zhenyu Wang Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Zhao Liu The use of kmap_atomic() is being deprecated in favor of kmap_local_page()[1]. In the following patches, we can convert the calls of kmap_atomic() / kunmap_atomic() to kmap_local_page() / kunmap_local(), which can instead do the mapping / unmapping regardless of the context. With kmap_local_page(), the mapping is per thread, CPU local and not globally visible. [1]: https://lore.kernel.org/all/20220813220034.806698-1-ira.weiny@intel.com --- Zhao Liu (9): drm/i915: Use kmap_local_page() in gem/i915_gem_object.c drm/i915: Use kmap_local_page() in gem/i915_gem_pyhs.c drm/i915: Use kmap_local_page() in gem/i915_gem_shmem.c drm/i915: Use kmap_local_page() in gem/selftests/huge_pages.c drm/i915: Use kmap_local_page() in gem/selftests/i915_gem_coherency.c drm/i915: Use kmap_local_page() in gem/selftests/i915_gem_context.c drm/i915: Use memcpy_from_page() in gt/uc/intel_uc_fw.c drm/i915: Use kmap_local_page() in i915_cmd_parser.c drm/i915: Use kmap_local_page() in gem/i915_gem_execbuffer.c drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 10 +++++----- drivers/gpu/drm/i915/gem/i915_gem_object.c | 8 +++----- drivers/gpu/drm/i915/gem/i915_gem_phys.c | 8 ++++---- drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 6 ++++-- drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 6 +++--- .../gpu/drm/i915/gem/selftests/i915_gem_coherency.c | 12 ++++-------- .../gpu/drm/i915/gem/selftests/i915_gem_context.c | 8 ++++---- drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 5 +---- drivers/gpu/drm/i915/i915_cmd_parser.c | 4 ++-- 9 files changed, 30 insertions(+), 37 deletions(-)