From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754537AbaFEFAP (ORCPT ); Thu, 5 Jun 2014 01:00:15 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43882 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752540AbaFEEUf (ORCPT ); Thu, 5 Jun 2014 00:20:35 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ilia Mirkin , Ben Skeggs Subject: [PATCH 3.4 060/214] drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi Date: Wed, 4 Jun 2014 21:17:03 -0700 Message-Id: <20140605041647.553726774@linuxfoundation.org> X-Mailer: git-send-email 2.0.0 In-Reply-To: <20140605041639.638675216@linuxfoundation.org> References: <20140605041639.638675216@linuxfoundation.org> User-Agent: quilt/0.60-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ilia Mirkin commit a3d0b1218d351c6e6f3cea36abe22236a08cb246 upstream. There appear to be a crop of new hardware where the vbios is not available from PROM/PRAMIN, but there is a valid _ROM method in ACPI. The data read from PCIROM almost invariably contains invalid instructions (still has the x86 opcodes), which makes this a low-risk way to try to obtain a valid vbios image. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76475 Signed-off-by: Ilia Mirkin Signed-off-by: Ben Skeggs Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/nouveau/nouveau_acpi.c | 3 --- 1 file changed, 3 deletions(-) --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -375,9 +375,6 @@ bool nouveau_acpi_rom_supported(struct p acpi_status status; acpi_handle dhandle, rom_handle; - if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected) - return false; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); if (!dhandle) return false;