From patchwork Mon Jan 30 20:41:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Helgaas X-Patchwork-Id: 9546101 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1A4BE604CC for ; Mon, 30 Jan 2017 20:41:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E894F21F61 for ; Mon, 30 Jan 2017 20:41:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DDA24281C3; Mon, 30 Jan 2017 20:41:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A28B27BA5 for ; Mon, 30 Jan 2017 20:41:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754477AbdA3UlP (ORCPT ); Mon, 30 Jan 2017 15:41:15 -0500 Received: from mail.kernel.org ([198.145.29.136]:45528 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754464AbdA3UlN (ORCPT ); Mon, 30 Jan 2017 15:41:13 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 528552025B; Mon, 30 Jan 2017 20:41:11 +0000 (UTC) Received: from localhost (unknown [69.71.4.155]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B75802025A; Mon, 30 Jan 2017 20:41:09 +0000 (UTC) Subject: [PATCH v1 2/2] drm/radeon: make MacBook Pro d3_delay quirk more generic From: Bjorn Helgaas To: Alex Deucher , Christian =?utf-8?b?S8O2bmln?= Cc: linux-pm@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Maarten Lankhorst Date: Mon, 30 Jan 2017 14:41:06 -0600 Message-ID: <20170130204106.31891.59164.stgit@bhelgaas-glaptop.roam.corp.google.com> In-Reply-To: <20170130203822.31891.22461.stgit@bhelgaas-glaptop.roam.corp.google.com> References: <20170130203822.31891.22461.stgit@bhelgaas-glaptop.roam.corp.google.com> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The PCI Power Management Spec, r1.2, sec 5.6.1, requires a 10 millisecond delay when powering on a device, i.e., transitioning from state D3hot to D0. Apparently some devices require more time, and d1f9809ed131 ("drm/radeon: add quirk for d3 delay during switcheroo poweron for apple macbooks") added an additional delay for the Radeon device in a MacBook Pro. 4807c5a8a0c8 ("drm/radeon: add a PX quirk list") made the affected device more explicit. Add a generic PCI quirk to increase the d3_delay. This means we will use the additional delay for *all* wakeups from D3, not just those initiated by radeon_switcheroo_set_state(). Signed-off-by: Bjorn Helgaas CC: Maarten Lankhorst Acked-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_device.c | 12 ------------ drivers/pci/quirks.c | 13 +++++++++++++ 2 files changed, 13 insertions(+), 12 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 8a1df2a1afbd..8b8fd981cae5 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -113,7 +113,6 @@ static inline bool radeon_is_atpx_hybrid(void) { return false; } #endif #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0) -#define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1) struct radeon_px_quirk { u32 chip_vendor; @@ -136,9 +135,6 @@ static struct radeon_px_quirk radeon_px_quirk_list[] = { * https://bugzilla.kernel.org/show_bug.cgi?id=51381 */ { PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX }, - /* macbook pro 8.2 */ - { PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP }, - { 0, 0, 0, 0, 0 }, }; bool radeon_is_px(struct drm_device *dev) @@ -1241,25 +1237,17 @@ static void radeon_check_arguments(struct radeon_device *rdev) static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { struct drm_device *dev = pci_get_drvdata(pdev); - struct radeon_device *rdev = dev->dev_private; if (radeon_is_px(dev) && state == VGA_SWITCHEROO_OFF) return; if (state == VGA_SWITCHEROO_ON) { - unsigned d3_delay = dev->pdev->d3_delay; - printk(KERN_INFO "radeon: switched on\n"); /* don't suspend or resume card normally */ dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; - if (d3_delay < 20 && (rdev->px_quirk_flags & RADEON_PX_QUIRK_LONG_WAKEUP)) - dev->pdev->d3_delay = 20; - radeon_resume_kms(dev, true, true); - dev->pdev->d3_delay = d3_delay; - dev->switch_power_state = DRM_SWITCH_POWER_ON; drm_kms_helper_poll_enable(dev); } else { diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 1800befa8b8b..512d7a875d62 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1683,6 +1683,19 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); +static void quirk_radeon_pm(struct pci_dev *dev) +{ + if (dev->subsystem_vendor == PCI_VENDOR_ID_APPLE && + dev->subsystem_device == 0x00e2) { + if (dev->d3_delay < 20) { + dev->d3_delay = 20; + dev_info(&dev->dev, "extending delay after power-on from D3 to %d msec\n", + dev->d3_delay); + } + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6741, quirk_radeon_pm); + #ifdef CONFIG_X86_IO_APIC /* * Boot interrupts on some chipsets cannot be turned off. For these chipsets,