4 files changed, 16 insertions, 13 deletions

diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index bc54235a7022..a086dd34f932 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -3,7 +3,7 @@ menuconfig AGP
 	tristate "/dev/agpgart (AGP Support)"
 	depends on ALPHA || IA64 || PARISC || PPC || X86
 	depends on PCI
-	---help---
+	help
 	  AGP (Accelerated Graphics Port) is a bus system mainly used to
 	  connect graphics cards to the rest of the system.
 
@@ -30,7 +30,7 @@ menuconfig AGP
 config AGP_ALI
 	tristate "ALI chipset support"
 	depends on AGP && X86_32
-	---help---
+	help
 	  This option gives you AGP support for the GLX component of
 	  X on the following ALi chipsets.  The supported chipsets
 	  include M1541, M1621, M1631, M1632, M1641,M1647,and M1651.
@@ -45,7 +45,7 @@ config AGP_ALI
 config AGP_ATI
 	tristate "ATI chipset support"
 	depends on AGP && X86_32
-	---help---
+	help
 	  This option gives you AGP support for the GLX component of
 	  X on the ATI RadeonIGP family of chipsets.
 
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 47098648502d..00ff5fcb808a 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -39,7 +39,6 @@
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/uaccess.h>
-#include <asm/pgtable.h>
 #include "agp.h"
 
 struct agp_front_data agp_fe;
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 9e84239f88d4..3ffbb1c80c5c 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -42,7 +42,6 @@
 #ifdef CONFIG_X86
 #include <asm/set_memory.h>
 #endif
-#include <asm/pgtable.h>
 #include "agp.h"
 
 __u32 *agp_gatt_table;
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 66a62d17a3f5..4b34a5195c65 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -846,6 +846,7 @@ void intel_gtt_insert_page(dma_addr_t addr,
 			   unsigned int flags)
 {
 	intel_private.driver->write_entry(addr, pg, flags);
+	readl(intel_private.gtt + pg);
 	if (intel_private.driver->chipset_flush)
 		intel_private.driver->chipset_flush();
 }
@@ -871,7 +872,7 @@ void intel_gtt_insert_sg_entries(struct sg_table *st,
 			j++;
 		}
 	}
-	wmb();
+	readl(intel_private.gtt + j - 1);
 	if (intel_private.driver->chipset_flush)
 		intel_private.driver->chipset_flush();
 }
@@ -1105,6 +1106,7 @@ static void i9xx_cleanup(void)
 
 static void i9xx_chipset_flush(void)
 {
+	wmb();
 	if (intel_private.i9xx_flush_page)
 		writel(1, intel_private.i9xx_flush_page);
 }
@@ -1405,13 +1407,16 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 
 	dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name);
 
-	mask = intel_private.driver->dma_mask_size;
-	if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask)))
-		dev_err(&intel_private.pcidev->dev,
-			"set gfx device dma mask %d-bit failed!\n", mask);
-	else
-		pci_set_consistent_dma_mask(intel_private.pcidev,
-					    DMA_BIT_MASK(mask));
+	if (bridge) {
+		mask = intel_private.driver->dma_mask_size;
+		if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask)))
+			dev_err(&intel_private.pcidev->dev,
+				"set gfx device dma mask %d-bit failed!\n",
+				mask);
+		else
+			pci_set_consistent_dma_mask(intel_private.pcidev,
+						    DMA_BIT_MASK(mask));
+	}
 
 	if (intel_gtt_init() != 0) {
 		intel_gmch_remove();