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 X-Spam-Level: X-Spam-Status: No, score=-14.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,HK_RANDOM_FROM,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B355C433B4 for ; Mon, 26 Apr 2021 15:23:03 +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 DD2F06135D for ; Mon, 26 Apr 2021 15:23:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD2F06135D 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=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0ADE36E83B; Mon, 26 Apr 2021 15:23:02 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id D6CEC6E83B; Mon, 26 Apr 2021 15:23:00 +0000 (UTC) IronPort-SDR: +qeMb0UPBO5D8JkD9Q/ddT/0jn0DtYKA4BUigRGzoj8FY56pnOclfhc/0pbz3r1Vg0e8sJP9dp 5vW6cL1ypBYw== X-IronPort-AV: E=McAfee;i="6200,9189,9966"; a="183832562" X-IronPort-AV: E=Sophos;i="5.82,252,1613462400"; d="scan'208";a="183832562" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2021 08:22:59 -0700 IronPort-SDR: yaQPSkOu1CrjQR1SshsEMxqqiJTx9GVrYUVKQysNgVB3nxdU2Z7NbLqp2/utU6IdYZgAelRFj8 ECJFeUWaPpqA== X-IronPort-AV: E=Sophos;i="5.82,252,1613462400"; d="scan'208";a="465149687" Received: from mrontion-mobl1.ger.corp.intel.com (HELO [10.213.223.230]) ([10.213.223.230]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Apr 2021 08:22:58 -0700 Subject: Re: [PATCH 4/7] drm/i915/gtt/dgfx: place the PD in LMEM To: Matthew Auld , intel-gfx@lists.freedesktop.org References: <20210426101821.42147-1-matthew.auld@intel.com> <20210426101821.42147-4-matthew.auld@intel.com> From: Tvrtko Ursulin Organization: Intel Corporation UK Plc Message-ID: Date: Mon, 26 Apr 2021 16:22:57 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <20210426101821.42147-4-matthew.auld@intel.com> Content-Language: en-US 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: dri-devel@lists.freedesktop.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 26/04/2021 11:18, Matthew Auld wrote: > It's a requirement that for dgfx we place all the paging structures in > device local-memory. > > v2: use i915_coherent_map_type() > > Signed-off-by: Matthew Auld > Cc: Tvrtko Ursulin > --- > drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 5 ++++- > drivers/gpu/drm/i915/gt/intel_gtt.c | 21 +++++++++++++++++++-- > drivers/gpu/drm/i915/gt/intel_gtt.h | 1 + > 3 files changed, 24 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c > index f83496836f0f..11fb5df45a0f 100644 > --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c > +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c > @@ -712,7 +712,10 @@ struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt) > */ > ppgtt->vm.has_read_only = !IS_GEN_RANGE(gt->i915, 11, 12); > > - ppgtt->vm.alloc_pt_dma = alloc_pt_dma; > + if (HAS_LMEM(gt->i915)) > + ppgtt->vm.alloc_pt_dma = alloc_pt_lmem; > + else > + ppgtt->vm.alloc_pt_dma = alloc_pt_dma; > > err = gen8_init_scratch(&ppgtt->vm); > if (err) > diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c > index d386b89e2758..bbe5b09e59ec 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gtt.c > +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c > @@ -7,10 +7,23 @@ > > #include > > +#include "gem/i915_gem_lmem.h" > #include "i915_trace.h" > #include "intel_gt.h" > #include "intel_gtt.h" > > +struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz) > +{ > + struct drm_i915_gem_object *obj; > + > + obj = i915_gem_object_create_lmem(vm->i915, sz, 0); > + > + /* ensure all dma objects have the same reservation class */ Class or actual object? And could the comment say why this is important? Regards, Tvrtko > + if (!IS_ERR(obj)) > + obj->base.resv = &vm->resv; > + return obj; > +} > + > struct drm_i915_gem_object *alloc_pt_dma(struct i915_address_space *vm, int sz) > { > struct drm_i915_gem_object *obj; > @@ -27,9 +40,11 @@ struct drm_i915_gem_object *alloc_pt_dma(struct i915_address_space *vm, int sz) > > int map_pt_dma(struct i915_address_space *vm, struct drm_i915_gem_object *obj) > { > + enum i915_map_type type; > void *vaddr; > > - vaddr = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WB); > + type = i915_coherent_map_type(vm->i915, obj, true); > + vaddr = i915_gem_object_pin_map_unlocked(obj, type); > if (IS_ERR(vaddr)) > return PTR_ERR(vaddr); > > @@ -39,9 +54,11 @@ int map_pt_dma(struct i915_address_space *vm, struct drm_i915_gem_object *obj) > > int map_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object *obj) > { > + enum i915_map_type type; > void *vaddr; > > - vaddr = i915_gem_object_pin_map(obj, I915_MAP_WB); > + type = i915_coherent_map_type(vm->i915, obj, true); > + vaddr = i915_gem_object_pin_map(obj, type); > if (IS_ERR(vaddr)) > return PTR_ERR(vaddr); > > diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h > index 40e486704558..44ce27c51631 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gtt.h > +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h > @@ -527,6 +527,7 @@ int setup_scratch_page(struct i915_address_space *vm); > void free_scratch(struct i915_address_space *vm); > > struct drm_i915_gem_object *alloc_pt_dma(struct i915_address_space *vm, int sz); > +struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz); > struct i915_page_table *alloc_pt(struct i915_address_space *vm); > struct i915_page_directory *alloc_pd(struct i915_address_space *vm); > struct i915_page_directory *__alloc_pd(int npde); > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel