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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 18665C47095 for ; Wed, 9 Jun 2021 04:37:35 +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 E220F6008E for ; Wed, 9 Jun 2021 04:37:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E220F6008E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=jlekstrand.net 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 439E26ECE8; Wed, 9 Jun 2021 04:37:18 +0000 (UTC) Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2BDD06ECDC for ; Wed, 9 Jun 2021 04:37:11 +0000 (UTC) Received: by mail-pl1-x629.google.com with SMTP id x19so4751688pln.2 for ; Tue, 08 Jun 2021 21:37:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jlekstrand-net.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=kb7mwQREXkD04cSrZHyrG7/CTsY7hyWUmajG+69iAbM=; b=vlCWIHMnFd8diTW/y9DNjn+EmWCH5ovwjnahxKG28Pa/OEhzf/bcrvX5HtYSa+HSKG syoUtkPxkPwDsSfFFM/Xvp9pCUY2rf2fPDOUSZkmClIhLO8H4136clwWUVayt5xp7LD2 Hu0dB7m1lDyyK/+K2yTxGHkMihFWZhOSrE2c9sK7LeTMPL4JpiGHRP+zXasGXHciPsIY yvjtr4hI4BjkCVs7oQJA8/8IFxiLaX3Vw/Yh5Q7ozfCbctl1zPdAHyIbNcxLE6cXbLyS 4LZssjcgxf6wGntFM7AqxnNWqbSCqXVokRrT7grtj53JFDbmPRvJVvBXoVdw92L5Z3eS rbHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=kb7mwQREXkD04cSrZHyrG7/CTsY7hyWUmajG+69iAbM=; b=Gwa4tcqjQ3/CZBJ30tGJ1EbIM+9+NsOfv6AWnOKfs99JXrY+ort3Ocy7CWpgk/s2fW FBpMzpg+UOrhh5e3d2vjUVSeFttmgEsaSQ6nMFZHToIJ9q2Dv70737eTQi39ZjWOIbz8 AkzpKy+8cD8J2dQnikwH5EdEIJ87z6xw6wUoP6t+Ld7SNwWlKGlIaiNxNA4TGkWdieFv aI7ovGXaNJ9qywXF/hZdw4RnDa/FmZVphOSXwrr8DSjjAcp2Z4fC3DnDNyTNcA5jsf7b FGeFqOdXMuRgZ5aik7Nez5P8jCVGx3cFtwsmnRKqcDMAejJjHNUkFBQb5o7FAZPG6SVo u+xw== X-Gm-Message-State: AOAM532+N+VvYTWR8fwPGCzYvNm6SGTsdbTyRRVjPnZdOugAd2Y3QJVI b6ODTn0d3fB6AColGYYTSNpCxXeEQODMSQ== X-Google-Smtp-Source: ABdhPJy7/B/K14jKi4JDydRW3B+n0SkPYasRqoo6wX2UmbkeS3YPxbLlK+Rx9iAeL5FRHhmIPsPUPA== X-Received: by 2002:a17:902:bd0b:b029:ef:8970:281c with SMTP id p11-20020a170902bd0bb02900ef8970281cmr3191619pls.35.1623213430257; Tue, 08 Jun 2021 21:37:10 -0700 (PDT) Received: from omlet.com (jfdmzpr06-ext.jf.intel.com. [134.134.137.75]) by smtp.gmail.com with ESMTPSA id t5sm11991612pfe.116.2021.06.08.21.37.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Jun 2021 21:37:09 -0700 (PDT) From: Jason Ekstrand To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH 29/31] drm/i915/gem: Roll all of context creation together Date: Tue, 8 Jun 2021 23:36:11 -0500 Message-Id: <20210609043613.102962-30-jason@jlekstrand.net> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210609043613.102962-1-jason@jlekstrand.net> References: <20210609043613.102962-1-jason@jlekstrand.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: Daniel Vetter , Jason Ekstrand Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Now that we have the whole engine set and VM at context creation time, we can just assign those fields instead of creating first and handling the VM and engines later. This lets us avoid creating useless VMs and engine sets and lets us get rid of the complex VM setting code. Signed-off-by: Jason Ekstrand Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/gem/i915_gem_context.c | 176 ++++++------------ .../gpu/drm/i915/gem/selftests/mock_context.c | 33 ++-- 2 files changed, 73 insertions(+), 136 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 574451e744583..d3c9c42dcae4d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -1279,56 +1279,6 @@ static int __context_set_persistence(struct i915_gem_context *ctx, bool state) return 0; } -static struct i915_gem_context * -__create_context(struct drm_i915_private *i915, - const struct i915_gem_proto_context *pc) -{ - struct i915_gem_context *ctx; - struct i915_gem_engines *e; - int err; - int i; - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return ERR_PTR(-ENOMEM); - - kref_init(&ctx->ref); - ctx->i915 = i915; - ctx->sched = pc->sched; - mutex_init(&ctx->mutex); - INIT_LIST_HEAD(&ctx->link); - - spin_lock_init(&ctx->stale.lock); - INIT_LIST_HEAD(&ctx->stale.engines); - - mutex_init(&ctx->engines_mutex); - e = default_engines(ctx, pc->legacy_rcs_sseu); - if (IS_ERR(e)) { - err = PTR_ERR(e); - goto err_free; - } - RCU_INIT_POINTER(ctx->engines, e); - - INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); - mutex_init(&ctx->lut_mutex); - - /* NB: Mark all slices as needing a remap so that when the context first - * loads it will restore whatever remap state already exists. If there - * is no remap info, it will be a NOP. */ - ctx->remap_slice = ALL_L3_SLICES(i915); - - ctx->user_flags = pc->user_flags; - - for (i = 0; i < ARRAY_SIZE(ctx->hang_timestamp); i++) - ctx->hang_timestamp[i] = jiffies - CONTEXT_FAST_HANG_JIFFIES; - - return ctx; - -err_free: - kfree(ctx); - return ERR_PTR(err); -} - static inline struct i915_gem_engines * __context_engines_await(const struct i915_gem_context *ctx, bool *user_engines) @@ -1372,54 +1322,31 @@ context_apply_all(struct i915_gem_context *ctx, i915_sw_fence_complete(&e->fence); } -static void __apply_ppgtt(struct intel_context *ce, void *vm) -{ - i915_vm_put(ce->vm); - ce->vm = i915_vm_get(vm); -} - -static struct i915_address_space * -__set_ppgtt(struct i915_gem_context *ctx, struct i915_address_space *vm) -{ - struct i915_address_space *old; - - old = rcu_replace_pointer(ctx->vm, - i915_vm_open(vm), - lockdep_is_held(&ctx->mutex)); - GEM_BUG_ON(old && i915_vm_is_4lvl(vm) != i915_vm_is_4lvl(old)); - - context_apply_all(ctx, __apply_ppgtt, vm); - - return old; -} - -static void __assign_ppgtt(struct i915_gem_context *ctx, - struct i915_address_space *vm) -{ - if (vm == rcu_access_pointer(ctx->vm)) - return; - - vm = __set_ppgtt(ctx, vm); - if (vm) - i915_vm_close(vm); -} - static struct i915_gem_context * i915_gem_create_context(struct drm_i915_private *i915, const struct i915_gem_proto_context *pc) { struct i915_gem_context *ctx; - int ret; + struct i915_address_space *vm = NULL; + struct i915_gem_engines *e; + int err; + int i; - ctx = __create_context(i915, pc); - if (IS_ERR(ctx)) - return ctx; + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return ERR_PTR(-ENOMEM); + + kref_init(&ctx->ref); + ctx->i915 = i915; + ctx->sched = pc->sched; + mutex_init(&ctx->mutex); + INIT_LIST_HEAD(&ctx->link); + + spin_lock_init(&ctx->stale.lock); + INIT_LIST_HEAD(&ctx->stale.engines); if (pc->vm) { - /* __assign_ppgtt() requires this mutex to be held */ - mutex_lock(&ctx->mutex); - __assign_ppgtt(ctx, pc->vm); - mutex_unlock(&ctx->mutex); + vm = i915_vm_get(pc->vm); } else if (HAS_FULL_PPGTT(i915)) { struct i915_ppgtt *ppgtt; @@ -1427,50 +1354,65 @@ i915_gem_create_context(struct drm_i915_private *i915, if (IS_ERR(ppgtt)) { drm_dbg(&i915->drm, "PPGTT setup failed (%ld)\n", PTR_ERR(ppgtt)); - context_close(ctx); - return ERR_CAST(ppgtt); + err = PTR_ERR(ppgtt); + goto err_ctx; } + vm = &ppgtt->vm; + } + if (vm) { + RCU_INIT_POINTER(ctx->vm, i915_vm_open(vm)); - /* __assign_ppgtt() requires this mutex to be held */ - mutex_lock(&ctx->mutex); - __assign_ppgtt(ctx, &ppgtt->vm); - mutex_unlock(&ctx->mutex); - - /* __assign_ppgtt() takes another reference for us */ - i915_vm_put(&ppgtt->vm); + /* i915_vm_open() takes a reference */ + i915_vm_put(vm); } + mutex_init(&ctx->engines_mutex); if (pc->num_user_engines >= 0) { - struct i915_gem_engines *engines; + i915_gem_context_set_user_engines(ctx); + e = user_engines(ctx, pc->num_user_engines, pc->user_engines); + } else { + i915_gem_context_clear_user_engines(ctx); + e = default_engines(ctx, pc->legacy_rcs_sseu); + } + if (IS_ERR(e)) { + err = PTR_ERR(e); + goto err_vm; + } + RCU_INIT_POINTER(ctx->engines, e); - engines = user_engines(ctx, pc->num_user_engines, - pc->user_engines); - if (IS_ERR(engines)) { - context_close(ctx); - return ERR_CAST(engines); - } + INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); + mutex_init(&ctx->lut_mutex); - mutex_lock(&ctx->engines_mutex); - i915_gem_context_set_user_engines(ctx); - engines = rcu_replace_pointer(ctx->engines, engines, 1); - mutex_unlock(&ctx->engines_mutex); + /* NB: Mark all slices as needing a remap so that when the context first + * loads it will restore whatever remap state already exists. If there + * is no remap info, it will be a NOP. */ + ctx->remap_slice = ALL_L3_SLICES(i915); - free_engines(engines); - } + ctx->user_flags = pc->user_flags; + + for (i = 0; i < ARRAY_SIZE(ctx->hang_timestamp); i++) + ctx->hang_timestamp[i] = jiffies - CONTEXT_FAST_HANG_JIFFIES; if (pc->single_timeline) { - ret = drm_syncobj_create(&ctx->syncobj, + err = drm_syncobj_create(&ctx->syncobj, DRM_SYNCOBJ_CREATE_SIGNALED, NULL); - if (ret) { - context_close(ctx); - return ERR_PTR(ret); - } + if (err) + goto err_engines; } trace_i915_context_create(ctx); return ctx; + +err_engines: + free_engines(e); +err_vm: + if (ctx->vm) + i915_vm_close(ctx->vm); +err_ctx: + kfree(ctx); + return ERR_PTR(err); } static void init_contexts(struct i915_gem_contexts *gc) diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c index 500ef27ba4771..fee070df1c97b 100644 --- a/drivers/gpu/drm/i915/gem/selftests/mock_context.c +++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c @@ -31,15 +31,6 @@ mock_context(struct drm_i915_private *i915, i915_gem_context_set_persistence(ctx); - mutex_init(&ctx->engines_mutex); - e = default_engines(ctx, null_sseu); - if (IS_ERR(e)) - goto err_free; - RCU_INIT_POINTER(ctx->engines, e); - - INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); - mutex_init(&ctx->lut_mutex); - if (name) { struct i915_ppgtt *ppgtt; @@ -47,25 +38,29 @@ mock_context(struct drm_i915_private *i915, ppgtt = mock_ppgtt(i915, name); if (!ppgtt) - goto err_put; - - mutex_lock(&ctx->mutex); - __set_ppgtt(ctx, &ppgtt->vm); - mutex_unlock(&ctx->mutex); + goto err_free; + ctx->vm = i915_vm_open(&ppgtt->vm); i915_vm_put(&ppgtt->vm); } + mutex_init(&ctx->engines_mutex); + e = default_engines(ctx, null_sseu); + if (IS_ERR(e)) + goto err_vm; + RCU_INIT_POINTER(ctx->engines, e); + + INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); + mutex_init(&ctx->lut_mutex); + return ctx; +err_vm: + if (ctx->vm) + i915_vm_close(ctx->vm); err_free: kfree(ctx); return NULL; - -err_put: - i915_gem_context_set_closed(ctx); - i915_gem_context_put(ctx); - return NULL; } void mock_context_close(struct i915_gem_context *ctx) -- 2.31.1