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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2043C7EE2C for ; Mon, 8 May 2023 09:56:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229457AbjEHJ4n (ORCPT ); Mon, 8 May 2023 05:56:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233850AbjEHJ4f (ORCPT ); Mon, 8 May 2023 05:56:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1FD72ABFE for ; Mon, 8 May 2023 02:56:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 67C1B62254 for ; Mon, 8 May 2023 09:56:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7CBA9C433EF; Mon, 8 May 2023 09:56:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683539786; bh=7WdwPKP2ajb40UYQ6VCpsCcIORTnkiIEZtDtJGKOAAY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mjv3IR8Cze/wRKX2B0fvO3cNMLnR9qX9HEaP4I5jsdqpsdNCtBDhpio/ke3O5efw/ WMsW6Vrzb4aO0ZU85nyRteiDmYKjgLA20Ek6P2y5YCXTJNt9aV1eDRduyuhn+yG2h8 7THuic6AxfCxsLRtBtjHw1wj611isc7urJoL7HIg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Orlando Chamberlain , Alex Deucher , Sasha Levin Subject: [PATCH 6.1 135/611] drm/amdgpu: register a vga_switcheroo client for MacBooks with apple-gmux Date: Mon, 8 May 2023 11:39:37 +0200 Message-Id: <20230508094426.638403210@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094421.513073170@linuxfoundation.org> References: <20230508094421.513073170@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Orlando Chamberlain [ Upstream commit d37a3929ca0363ed1dce02b2772cd5bc547ca66d ] Commit 3840c5bcc245 ("drm/amdgpu: disentangle runtime pm and vga_switcheroo") made amdgpu only register a vga_switcheroo client for GPU's with PX, however AMD GPUs in dual gpu Apple Macbooks do need to register, but don't have PX. Instead of AMD's PX, they use apple-gmux. Use apple_gmux_detect() to identify these gpus, and pci_is_thunderbolt_attached() to ensure eGPUs connected to Dual GPU Macbooks don't register with vga_switcheroo. Fixes: 3840c5bcc245 ("drm/amdgpu: disentangle runtime pm and vga_switcheroo") Link: https://lore.kernel.org/amd-gfx/20230210044826.9834-10-orlandoch.dev@gmail.com/ Signed-off-by: Orlando Chamberlain Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9df5dcedaf3e2..9776e0b488cf6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include @@ -3942,12 +3943,15 @@ int amdgpu_device_init(struct amdgpu_device *adev, if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) vga_client_register(adev->pdev, amdgpu_device_vga_set_decode); - if (amdgpu_device_supports_px(ddev)) { - px = true; + px = amdgpu_device_supports_px(ddev); + + if (px || (!pci_is_thunderbolt_attached(adev->pdev) && + apple_gmux_detect(NULL, NULL))) vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, px); + + if (px) vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain); - } if (adev->gmc.xgmi.pending_reset) queue_delayed_work(system_wq, &mgpu_info.delayed_reset_work, @@ -4053,6 +4057,7 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev) void amdgpu_device_fini_sw(struct amdgpu_device *adev) { int idx; + bool px; amdgpu_fence_driver_sw_fini(adev); amdgpu_device_ip_fini(adev); @@ -4072,10 +4077,16 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev) kfree(adev->bios); adev->bios = NULL; - if (amdgpu_device_supports_px(adev_to_drm(adev))) { + + px = amdgpu_device_supports_px(adev_to_drm(adev)); + + if (px || (!pci_is_thunderbolt_attached(adev->pdev) && + apple_gmux_detect(NULL, NULL))) vga_switcheroo_unregister_client(adev->pdev); + + if (px) vga_switcheroo_fini_domain_pm_ops(adev->dev); - } + if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) vga_client_unregister(adev->pdev); -- 2.39.2