Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754657Ab2EWGhS (ORCPT ); Wed, 23 May 2012 02:37:18 -0400 Received: from rcsinet15.oracle.com ([148.87.113.117]:32499 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965149Ab2EWGez (ORCPT ); Wed, 23 May 2012 02:34:55 -0400 From: Yinghai Lu To: Bjorn Helgaas Cc: Andrew Morton , Linus Torvalds , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , David Airlie Subject: [PATCH 03/11] intel-gtt: Read 64bit for gmar_bus_addr Date: Tue, 22 May 2012 23:34:29 -0700 Message-Id: <1337754877-19759-4-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1337754877-19759-1-git-send-email-yinghai@kernel.org> References: <1337754877-19759-1-git-send-email-yinghai@kernel.org> X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1445 Lines: 47 That bar could be 64bit pref mem. Signed-off-by: Yinghai Lu Cc: David Airlie --- drivers/char/agp/intel-gtt.c | 14 ++++++++++---- 1 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 7f025fb..77e150e 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -770,16 +770,22 @@ static void i830_write_entry(dma_addr_t addr, unsigned int entry, static bool intel_enable_gtt(void) { u32 gma_addr; + u32 addr_hi = 0; u8 __iomem *reg; + int pos; if (INTEL_GTT_GEN <= 2) - pci_read_config_dword(intel_private.pcidev, I810_GMADDR, - &gma_addr); + pos = I810_GMADDR; else - pci_read_config_dword(intel_private.pcidev, I915_GMADDR, - &gma_addr); + pos = I915_GMADDR; + + pci_read_config_dword(intel_private.pcidev, pos, &gma_addr); + + if (gma_addr & PCI_BASE_ADDRESS_MEM_TYPE_64) + pci_read_config_dword(intel_private.pcidev, pos + 4, &addr_hi); intel_private.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK); + intel_private.gma_bus_addr |= (u64)addr_hi << 32; if (INTEL_GTT_GEN >= 6) return true; -- 1.7.7 -- 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/