From patchwork Thu Jul 7 20:02:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Bob Beckett X-Patchwork-Id: 12910214 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 B43EBC433EF for ; Thu, 7 Jul 2022 20:03:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A85E112BC23; Thu, 7 Jul 2022 20:02:55 +0000 (UTC) Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by gabe.freedesktop.org (Postfix) with ESMTPS id E92B511B688; Thu, 7 Jul 2022 20:02:47 +0000 (UTC) Received: from hermes-devbox.fritz.box (82-71-8-225.dsl.in-addr.zen.co.uk [82.71.8.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bbeckett) by madras.collabora.co.uk (Postfix) with ESMTPSA id 6FE0766019D9; Thu, 7 Jul 2022 21:02:46 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1657224166; bh=4aLhOjNbnMWEd5TE2kdvFPY0DN2hydFT2IvNHlkBa+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=evQyPjJlvvmk4j5PwsrJFD1QCYTbCuIf/tTRGtPN/q2Q48euAkUZ/mF5pIgVBhdcG hz/Os5AMdrMpuO+y51kCVCwaWfJL/qa/bJev4ksPXcwiv2mSQInsNIibPjlThh2JyL +4IJWlc2lZQEa0sIHedfY86y6aqETQNB6QaPx9zkkke9xGjmejoqO9vk6ADPeCiQyq JPasR3b5z6CHDbleZxYPLl9/+Ki83u+b/nE/jKUkPr7hG6mvl7iovNgYqTQkJkOOjC RJPkCY+EcrvvXbCQIOSZOWM79OYoQL9IQcNXK/jP/Y/G4LYBEVu/BVgNYQFfZsHYQL qaDp9z+Qzcqzw== From: Robert Beckett To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter Subject: [PATCH v10 05/11] drm/i915: instantiate ttm ranger manager for stolen memory Date: Thu, 7 Jul 2022 20:02:23 +0000 Message-Id: <20220707200230.1657555-6-bob.beckett@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220707200230.1657555-1-bob.beckett@collabora.com> References: <20220707200230.1657555-1-bob.beckett@collabora.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Robert Beckett , =?utf-8?q?Thomas_Hellstr?= =?utf-8?q?=C3=B6m?= , kernel@collabora.com, Matthew Auld , linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" prepare for ttm based stolen region by using ttm range manager as the resource manager for stolen region. Signed-off-by: Robert Beckett Reviewed-by: Thomas Hellström --- drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c | 6 ++-- drivers/gpu/drm/i915/intel_region_ttm.c | 31 +++++++++++++++----- 2 files changed, 27 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c index 40249fa28a7a..675e9ab30396 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c @@ -60,11 +60,13 @@ i915_ttm_region(struct ttm_device *bdev, int ttm_mem_type) struct drm_i915_private *i915 = container_of(bdev, typeof(*i915), bdev); /* There's some room for optimization here... */ - GEM_BUG_ON(ttm_mem_type != I915_PL_SYSTEM && - ttm_mem_type < I915_PL_LMEM0); + GEM_BUG_ON(ttm_mem_type == I915_PL_GGTT); + if (ttm_mem_type == I915_PL_SYSTEM) return intel_memory_region_lookup(i915, INTEL_MEMORY_SYSTEM, 0); + if (ttm_mem_type == I915_PL_STOLEN) + return i915->mm.stolen_region; return intel_memory_region_lookup(i915, INTEL_MEMORY_LOCAL, ttm_mem_type - I915_PL_LMEM0); diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index fd2ecfdd8fa1..694e9acb69e2 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -54,7 +54,7 @@ void intel_region_ttm_device_fini(struct drm_i915_private *dev_priv) /* * Map the i915 memory regions to TTM memory types. We use the - * driver-private types for now, reserving TTM_PL_VRAM for stolen + * driver-private types for now, reserving I915_PL_STOLEN for stolen * memory and TTM_PL_TT for GGTT use if decided to implement this. */ int intel_region_to_ttm_type(const struct intel_memory_region *mem) @@ -63,11 +63,17 @@ int intel_region_to_ttm_type(const struct intel_memory_region *mem) GEM_BUG_ON(mem->type != INTEL_MEMORY_LOCAL && mem->type != INTEL_MEMORY_MOCK && - mem->type != INTEL_MEMORY_SYSTEM); + mem->type != INTEL_MEMORY_SYSTEM && + mem->type != INTEL_MEMORY_STOLEN_SYSTEM && + mem->type != INTEL_MEMORY_STOLEN_LOCAL); if (mem->type == INTEL_MEMORY_SYSTEM) return TTM_PL_SYSTEM; + if (mem->type == INTEL_MEMORY_STOLEN_SYSTEM || + mem->type == INTEL_MEMORY_STOLEN_LOCAL) + return I915_PL_STOLEN; + type = mem->instance + TTM_PL_PRIV; GEM_BUG_ON(type >= TTM_NUM_MEM_TYPES); @@ -91,10 +97,16 @@ int intel_region_ttm_init(struct intel_memory_region *mem) int mem_type = intel_region_to_ttm_type(mem); int ret; - ret = i915_ttm_buddy_man_init(bdev, mem_type, false, - resource_size(&mem->region), - mem->io_size, - mem->min_page_size, PAGE_SIZE); + if (mem_type == I915_PL_STOLEN) { + ret = ttm_range_man_init(bdev, mem_type, false, + resource_size(&mem->region) >> PAGE_SHIFT); + mem->is_range_manager = true; + } else { + ret = i915_ttm_buddy_man_init(bdev, mem_type, false, + resource_size(&mem->region), + mem->io_size, + mem->min_page_size, PAGE_SIZE); + } if (ret) return ret; @@ -114,6 +126,7 @@ int intel_region_ttm_init(struct intel_memory_region *mem) int intel_region_ttm_fini(struct intel_memory_region *mem) { struct ttm_resource_manager *man = mem->region_private; + int mem_type = intel_region_to_ttm_type(mem); int ret = -EBUSY; int count; @@ -144,8 +157,10 @@ int intel_region_ttm_fini(struct intel_memory_region *mem) if (ret || !man) return ret; - ret = i915_ttm_buddy_man_fini(&mem->i915->bdev, - intel_region_to_ttm_type(mem)); + if (mem_type == I915_PL_STOLEN) + ret = ttm_range_man_fini(&mem->i915->bdev, mem_type); + else + ret = i915_ttm_buddy_man_fini(&mem->i915->bdev, mem_type); GEM_WARN_ON(ret); mem->region_private = NULL;