From patchwork Thu Nov 11 07:14:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Hellstrom X-Patchwork-Id: 12614321 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD95DC433EF for ; Thu, 11 Nov 2021 07:15:22 +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 5B86A6124C for ; Thu, 11 Nov 2021 07:15:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5B86A6124C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C117B6E8B6; Thu, 11 Nov 2021 07:15:21 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5007C6E8B6; Thu, 11 Nov 2021 07:15:20 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10164"; a="212896378" X-IronPort-AV: E=Sophos;i="5.87,225,1631602800"; d="scan'208";a="212896378" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2021 23:15:19 -0800 X-IronPort-AV: E=Sophos;i="5.87,225,1631602800"; d="scan'208";a="452627294" Received: from clanggaa-mobl1.ger.corp.intel.com (HELO thellstr-mobl1.intel.com) ([10.249.254.199]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2021 23:15:17 -0800 From: =?utf-8?q?Thomas_Hellstr=C3=B6m?= To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Thu, 11 Nov 2021 08:14:56 +0100 Message-Id: <20211111071502.16826-1-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/6] drm/i915/ttm: Async migration 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: =?utf-8?q?Thomas_Hellstr=C3=B6m?= , matthew.auld@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This patch series deals with async migration and async vram management. It still leaves an important part out, which is async unbinding which will reduce latency further, at least when trying to migrate already active objects. Patches 1/6 and 2/6 deal with accessing and waiting for the TTM moving fence from i915 GEM. Patch 3 is pure code reorganization, no functional change. Patch 4 breaks a refcounting loop involving the TTM moving fence. Patch 5 uses TTM to implement the ttm move() callback async, it also introduces a utility to collect dependencies and turn them into a single dma_fence, which is needed for the intel_migrate code. This also affects the gem object migrate code so. Patch 6 makes the object copy utility async as well, mainly for future users since the only current user, suspend backup and restore, typically will want to sync anyway. Maarten Lankhorst (2): drm/i915: Add functions to set/get moving fence drm/i915: Add support for asynchronous moving fence waiting Thomas Hellström (4): drm/i915/ttm: Move the i915_gem_obj_copy_ttm() function drm/i915/ttm: Break refcounting loops at device region unref time drm/i915/ttm: Implement asynchronous TTM moves drm/i915/ttm: Update i915_gem_obj_copy_ttm() to be asynchronous drivers/gpu/drm/i915/display/intel_fbdev.c | 7 +- drivers/gpu/drm/i915/display/intel_overlay.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_object.c | 37 ++ drivers/gpu/drm/i915/gem/i915_gem_object.h | 9 + drivers/gpu/drm/i915/gem/i915_gem_pages.c | 6 + drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 58 +-- drivers/gpu/drm/i915/gem/i915_gem_ttm.h | 6 +- drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c | 396 ++++++++++++++++-- drivers/gpu/drm/i915/gem/i915_gem_ttm_move.h | 10 +- drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c | 3 + drivers/gpu/drm/i915/gem/i915_gem_wait.c | 4 +- .../i915/gem/selftests/i915_gem_coherency.c | 4 +- .../drm/i915/gem/selftests/i915_gem_mman.c | 18 +- drivers/gpu/drm/i915/gt/intel_region_lmem.c | 1 + drivers/gpu/drm/i915/i915_vma.c | 39 +- drivers/gpu/drm/i915/i915_vma.h | 3 + drivers/gpu/drm/i915/intel_memory_region.c | 5 +- drivers/gpu/drm/i915/intel_memory_region.h | 1 + drivers/gpu/drm/i915/intel_region_ttm.c | 28 ++ drivers/gpu/drm/i915/intel_region_ttm.h | 2 + drivers/gpu/drm/i915/selftests/i915_vma.c | 4 +- 21 files changed, 535 insertions(+), 108 deletions(-)