Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964817AbbGYCot (ORCPT ); Fri, 24 Jul 2015 22:44:49 -0400 Received: from mga09.intel.com ([134.134.136.24]:31333 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964797AbbGYCoq (ORCPT ); Fri, 24 Jul 2015 22:44:46 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,542,1432623600"; d="scan'208";a="735186295" Subject: [PATCH v2 12/25] i915: switch from acpi_os_ioremap to ioremap From: Dan Williams To: tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com Cc: linux-arch@vger.kernel.org, toshi.kani@hp.com, linux-nvdimm@ml01.01.org, David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jani Nikula , dri-devel@lists.freedesktop.org, rmk+kernel@arm.linux.org.uk, Daniel Vetter , hch@lst.de, linux-arm-kernel@lists.infradead.org Date: Fri, 24 Jul 2015 22:39:04 -0400 Message-ID: <20150725023904.8664.84461.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> References: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.17.1-8-g92dd MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1237 Lines: 33 acpi_os_ioremap uses cached mappings, however it appears that i915 wants to read dynamic platform state. Switch to ioremap() to prevent it reading stale state from cache. Cc: Daniel Vetter Cc: Jani Nikula Cc: intel-gfx@lists.freedesktop.org Cc: David Airlie Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dan Williams --- drivers/gpu/drm/i915/intel_opregion.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 481337436f72..16ba7c67410d 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -863,7 +863,7 @@ int intel_opregion_setup(struct drm_device *dev) INIT_WORK(&opregion->asle_work, asle_work); #endif - base = acpi_os_ioremap(asls, OPREGION_SIZE); + base = ioremap(asls, OPREGION_SIZE); if (!base) return -ENOMEM; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/