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 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 833F5C001B0 for ; Wed, 19 Jul 2023 08:38:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5C1AB10E42E; Wed, 19 Jul 2023 08:38:58 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id C4F8610E42D for ; Wed, 19 Jul 2023 08:38:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689755936; x=1721291936; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ltFrUhEfH6Lps+c4Zw4tP01mg8HrqSFbK3KZxBn8uVk=; b=NDYW243nDWGaSWiTsMTcTyCmYhTSP6ISblP4hOEo9JAON3ai6uT7J+pB B7TeYs3XGhC8y8wFrbHGNSjaP6P2hG8DgSLbWaX+kaUcBurc5H2V6Qhh5 EW1lB8w749ST1f9bYzh/pbxyR8tLHDJXAY6Bk84Zhpf9NOpQZgpZpdead 8IWlGFloBIn0KZvJLA1S/ON3m+NJ1YJHUSoiyFrG4tpHE/Nw2vx7OWgfF FR5v2MLFazp0Mc0cNIbzyzru/Jt8VjKSdftHKHBD0Ky4PWt5E7IFgaI3o 62DyYxNGAa4eXZwiIkP+lmgHOgDyWRnYBh3cqeg+6J4iuObNySOAVM52v g==; X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="345999014" X-IronPort-AV: E=Sophos;i="6.01,216,1684825200"; d="scan'208";a="345999014" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jul 2023 01:38:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="837603325" X-IronPort-AV: E=Sophos;i="6.01,216,1684825200"; d="scan'208";a="837603325" Received: from gtroy-mobl1.ger.corp.intel.com (HELO mwauld-desk1.intel.com) ([10.252.29.95]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jul 2023 01:38:55 -0700 From: Matthew Auld To: intel-xe@lists.freedesktop.org Date: Wed, 19 Jul 2023 09:38:04 +0100 Message-ID: <20230719083801.182123-14-matthew.auld@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230719083801.182123-12-matthew.auld@intel.com> References: <20230719083801.182123-12-matthew.auld@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Intel-xe] [PATCH v15 02/10] drm/xe/vm: tidy up xe_runtime_pm usage X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rodrigo Vivi Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" The xe_device_mem_access_get() should be all that's needed here and should now work as expected, without any strange races. In theory should be no functional changes here. Reported-by: Oded Gabbay Signed-off-by: Matthew Auld Cc: Rodrigo Vivi Cc: Thomas Hellström Reviewed-by: Rodrigo Vivi --- drivers/gpu/drm/xe/xe_vm.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 91f11dfe9460..3941ceb64594 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -1231,11 +1231,8 @@ struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags) INIT_LIST_HEAD(&vm->extobj.list); - if (!(flags & XE_VM_FLAG_MIGRATION)) { - /* We need to immeditatelly exit from any D3 state */ - xe_pm_runtime_get(xe); + if (!(flags & XE_VM_FLAG_MIGRATION)) xe_device_mem_access_get(xe); - } err = dma_resv_lock_interruptible(&vm->resv, NULL); if (err) @@ -1352,10 +1349,8 @@ struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags) err_put: dma_resv_fini(&vm->resv); kfree(vm); - if (!(flags & XE_VM_FLAG_MIGRATION)) { + if (!(flags & XE_VM_FLAG_MIGRATION)) xe_device_mem_access_put(xe); - xe_pm_runtime_put(xe); - } return ERR_PTR(err); } @@ -1513,7 +1508,6 @@ static void vm_destroy_work_func(struct work_struct *w) if (!(vm->flags & XE_VM_FLAG_MIGRATION)) { xe_device_mem_access_put(xe); - xe_pm_runtime_put(xe); if (xe->info.has_asid) { mutex_lock(&xe->usm.lock); -- 2.41.0