From patchwork Wed Jan 26 15:21:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthew Auld X-Patchwork-Id: 12725260 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 C786CC28CF5 for ; Wed, 26 Jan 2022 15:23:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E6DE10E938; Wed, 26 Jan 2022 15:22:32 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7502210E935; Wed, 26 Jan 2022 15:22:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643210545; x=1674746545; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7X/H2mlbUOUGVLFS85o8YXVSlb5lAuaTEr4TNGE9KgQ=; b=HNYOR3Ha7eNUhqw79qXMQ9mYqA/PgxnCqk0j/I04KA1eoRwrApRk1h03 w7SEvvEUXlGxi0mydOn/REKlMShPPxjtaRwPZeaWiMMilekUCDuuELmJD R+YGkJS3MUJN4DsOcxMH783pAfsRKAl+mNP6ey3SCSNUFbRqMcbwCTVYV eGuBa9JtKS0JQtQqjYa2xtG8uDBTJi1YkXQ/n/0aPQmOUnXxBwtQR6YAZ KqcDHApXIAFAX6PZZM0OoeXTt2iV3/NUkIIQ0qvcZ3QQxQLvrkJ1Bkm7U vo//qRnFchOVR5bMCAr3q6EBxlLyeMnWWlTiosOB1rro+wMT1M+/X02ID g==; X-IronPort-AV: E=McAfee;i="6200,9189,10238"; a="309885271" X-IronPort-AV: E=Sophos;i="5.88,318,1635231600"; d="scan'208";a="309885271" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2022 07:22:25 -0800 X-IronPort-AV: E=Sophos;i="5.88,318,1635231600"; d="scan'208";a="674386315" Received: from jamesstx-mobl.ger.corp.intel.com (HELO mwauld-desk1.intel.com) ([10.213.247.182]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2022 07:22:24 -0800 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Date: Wed, 26 Jan 2022 15:21:51 +0000 Message-Id: <20220126152155.3070602-17-matthew.auld@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220126152155.3070602-1-matthew.auld@intel.com> References: <20220126152155.3070602-1-matthew.auld@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 16/20] drm/i915/create: apply ALLOC_TOPDOWN by default 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?= , dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Starting from DG2+, when dealing with LMEM, we assume that by default all userspace allocations should be placed in the non-mappable portion of LMEM. Note that dumb buffers are not included here, since these are not "GPU accelerated" and likely need CPU access. In a later patch userspace will be able to provide a hint if CPU access to the buffer is needed. Signed-off-by: Matthew Auld Cc: Thomas Hellström --- drivers/gpu/drm/i915/gem/i915_gem_create.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index 9402d4bf4ffc..e7456443f163 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -424,6 +424,15 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data, ext_data.n_placements = 1; } + /* + * TODO: add a userspace hint to force CPU_ACCESS for the object, which + * can override this. + */ + if (!IS_DG1(i915) && (ext_data.n_placements > 1 || + ext_data.placements[0]->type != + INTEL_MEMORY_SYSTEM)) + ext_data.flags |= I915_BO_ALLOC_TOPDOWN; + obj = __i915_gem_object_create_user_ext(i915, args->size, ext_data.placements, ext_data.n_placements,