From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 91919168C7 for ; Mon, 8 May 2023 11:00:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00E18C433EF; Mon, 8 May 2023 11:00:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683543645; bh=cr8qEIPPK9/x+fTbmXyAuH2hxvKlJYg7RwWLSh5Rq0w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aqIM/RlQxhxQDsmmFQkecLDIcdIaU63XUvizo07NL4kmV5H5jdaRaqHW42Tf0ywYj zoufUoML+23y/M0lMF4polxt0VyS7OKoyomMZt1/qHBssNutz38WDfMqIqf0SgnIGQ 5vKdAjIJlBQiWro6dK2IYSQLGWA32yr1r3BV27/4= 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 6.3 156/694] drm/amdgpu: register a vga_switcheroo client for MacBooks with apple-gmux Date: Mon, 8 May 2023 11:39:51 +0200 Message-Id: <20230508094437.491064884@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094432.603705160@linuxfoundation.org> References: <20230508094432.603705160@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 3d98fc2ad36b0..6f715fb930bb4 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 @@ -3945,12 +3946,15 @@ 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, @@ -4054,6 +4058,7 @@ 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