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 A6CD3C433F5 for ; Tue, 15 Mar 2022 18:05:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240615AbiCOSGu (ORCPT ); Tue, 15 Mar 2022 14:06:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350904AbiCOSGY (ORCPT ); Tue, 15 Mar 2022 14:06:24 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE3CE4163A for ; Tue, 15 Mar 2022 11:05:11 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: bbeckett) with ESMTPSA id 529E31F43052 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1647367510; bh=ToS8lMBol1VOlB+6o7QPgccbMJbV2qQuGt1LNM0xKzU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mgkg5vPTu4489UhKxp8356PXehcPFvkKbjF4txpVFKtgjZcdn/BNH7T2RjOfcjs1x xAIph6X0fJLkVMe66iZV8BqufuSMIsd+7jeNY4dqCHVQFHqSvB/RvQ2l8Iz2Lu0Ra+ JM1CxniNI6V+X3CHmiOTM9J18gmykw6nbqT3MEkhSyp7d/GyuWVdAQUFFpJJeZdY50 IadRUhuf7ASVgfyWCLSOvg8cwvgw0VXhKdMXfqSTDTKkUq+GvxbO4/rSZXc2W46s1D M7QvkaLWvHwRBT4XU3ma1Rhf17am85K2T6T1kJPcezv5iauWB44jUt6nd5D18K1VK0 klN+6aJcrNrtw== From: Robert Beckett To: intel-gfx@lists.freedesktop.org, Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter Cc: Robert Beckett , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 6/7] drm/i915: add range busy check for ttm region Date: Tue, 15 Mar 2022 18:04:43 +0000 Message-Id: <20220315180444.3327283-7-bob.beckett@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220315180444.3327283-1-bob.beckett@collabora.com> References: <20220315180444.3327283-1-bob.beckett@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RFC: should this become a generic interface in intel_memory_region_ops? RFC: would we prefer an different interface? e.g. for_each_obj_in_range Signed-off-by: Robert Beckett --- drivers/gpu/drm/i915/intel_region_ttm.c | 19 +++++++++++++++++++ drivers/gpu/drm/i915/intel_region_ttm.h | 3 +++ 2 files changed, 22 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index bb564b830c96..2ccefa76348f 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -256,3 +256,22 @@ void intel_region_ttm_resource_free(struct intel_memory_region *mem, man->func->free(man, res); } + +/** + * intel_region_ttm_range_busy - check whether range has any allocations + * @mem: The region to check + * @start: the start of the range to check + * @end: the end of the range to check + * + * Return: true if something is alloceted within the region, false otherwise. + */ +bool intel_region_ttm_range_busy(struct intel_memory_region *mem, + u64 start, u64 end) +{ + struct ttm_resource_manager *man = mem->region_private; + + /* currently only supported for range allocator */ + GEM_BUG_ON(!mem->is_range_manager); + + return ttm_range_man_range_busy(man, PFN_DOWN(start), PFN_UP(end)); +} diff --git a/drivers/gpu/drm/i915/intel_region_ttm.h b/drivers/gpu/drm/i915/intel_region_ttm.h index fdee5e7bd46c..670ba9b618f7 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.h +++ b/drivers/gpu/drm/i915/intel_region_ttm.h @@ -29,6 +29,9 @@ intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem, void intel_region_ttm_resource_free(struct intel_memory_region *mem, struct ttm_resource *res); +bool intel_region_ttm_range_busy(struct intel_memory_region *mem, + u64 start, u64 end); + int intel_region_to_ttm_type(const struct intel_memory_region *mem); struct ttm_device_funcs *i915_ttm_driver(void); -- 2.25.1