From patchwork Thu Jun 20 14:44:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13705678 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 E2757C2BB85 for ; Thu, 20 Jun 2024 14:52:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A1DCC10EA55; Thu, 20 Jun 2024 14:52:46 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=suse.de header.i=@suse.de header.b="JoXin4bp"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="BRO0QXTH"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="JoXin4bp"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="BRO0QXTH"; dkim-atps=neutral Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 69F6810EA5B; Thu, 20 Jun 2024 14:52:45 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (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) by smtp-out2.suse.de (Postfix) with ESMTPS id C6B641F8B5; Thu, 20 Jun 2024 14:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1718895163; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mx6HmBHzLfcx++306iP7fMkmUJFXGoHm1hzxVMoqV84=; b=JoXin4bpREZza0SkpYaSLaTjH83D+uZQNYFdLgKiBf4z+ShHmZjq/BmJQAD4BM0KGfMPxL 7rieET1f8ADKy386D94SsI+fuUO2820Lp6xkUBmN0EDxR9MGFxTxRjR0LT+FgjDJntA3IK JLYLKOvwCoq8UWD2Pm915U5aRuwC5LY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1718895163; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mx6HmBHzLfcx++306iP7fMkmUJFXGoHm1hzxVMoqV84=; b=BRO0QXTHABR6n33du7fO9DtmGb0T1EEQdzq3J4cMcVG1g8F3kgqkRmeT9zgC1ceJaAtEKX XTWGpUe2X8O2OtBQ== Authentication-Results: smtp-out2.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=JoXin4bp; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=BRO0QXTH DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1718895163; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mx6HmBHzLfcx++306iP7fMkmUJFXGoHm1hzxVMoqV84=; b=JoXin4bpREZza0SkpYaSLaTjH83D+uZQNYFdLgKiBf4z+ShHmZjq/BmJQAD4BM0KGfMPxL 7rieET1f8ADKy386D94SsI+fuUO2820Lp6xkUBmN0EDxR9MGFxTxRjR0LT+FgjDJntA3IK JLYLKOvwCoq8UWD2Pm915U5aRuwC5LY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1718895163; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mx6HmBHzLfcx++306iP7fMkmUJFXGoHm1hzxVMoqV84=; b=BRO0QXTHABR6n33du7fO9DtmGb0T1EEQdzq3J4cMcVG1g8F3kgqkRmeT9zgC1ceJaAtEKX XTWGpUe2X8O2OtBQ== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (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) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 854E313ACA; Thu, 20 Jun 2024 14:52:43 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id iBk/HztCdGZ+aQAAD6G6ig (envelope-from ); Thu, 20 Jun 2024 14:52:43 +0000 From: Thomas Zimmermann To: alexander.deucher@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, felix.kuehling@amd.com Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH 1/2] drm/amdgpu: Unmap BO memory before calling amdgpu_bo_unref() Date: Thu, 20 Jun 2024 16:44:40 +0200 Message-ID: <20240620145238.25295-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240620145238.25295-1-tzimmermann@suse.de> References: <20240620145238.25295-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Spamd-Result: default: False [-4.90 / 50.00]; BAYES_HAM(-2.89)[99.54%]; DWL_DNSWL_MED(-2.00)[suse.de:dkim]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_DN_SOME(0.00)[]; FREEMAIL_TO(0.00)[amd.com,gmail.com,ffwll.ch]; FUZZY_BLOCKED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.de:dkim]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_SEVEN(0.00)[9]; RCVD_COUNT_TWO(0.00)[2]; DKIM_TRACE(0.00)[suse.de:+]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; FREEMAIL_ENVRCPT(0.00)[gmail.com] X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Queue-Id: C6B641F8B5 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Prepares for using ttm_bo_vmap() and ttm_bo_vunmap() in amdgpu. Both require the caller to hold the GEM reservation lock, which is not the case while releasing a buffer object. Hence, push a possible call to unmap out from the buffer-object release code. Warn if a buffer object with mapped pages is supposed to be released. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index a1b7438c43dc8..d58b11ea0ead5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -58,7 +58,12 @@ static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo) { struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo); - amdgpu_bo_kunmap(bo); + /* + * BO memory pages should be unmapped at this point. Call + * amdgpu_bo_kunmap() before releasing the BO. + */ + if (drm_WARN_ON_ONCE(bo->tbo.base.dev, bo->kmap.bo)) + amdgpu_bo_kunmap(bo); if (bo->tbo.base.import_attach) drm_prime_gem_destroy(&bo->tbo.base, bo->tbo.sg); @@ -450,9 +455,7 @@ void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr, WARN_ON(amdgpu_ttm_adev((*bo)->tbo.bdev)->in_suspend); if (likely(amdgpu_bo_reserve(*bo, true) == 0)) { - if (cpu_addr) - amdgpu_bo_kunmap(*bo); - + amdgpu_bo_kunmap(*bo); amdgpu_bo_unpin(*bo); amdgpu_bo_unreserve(*bo); }