18 files changed, 177 insertions, 151 deletions

diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index b6888384dd74..f5698f962e58 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -686,7 +686,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index 15aab1ca6384..1bf0a63614b1 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -691,7 +691,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
-# CONFIG_SERIAL_OF_PLATFORM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig
index aa5855a156de..15900dcf0bfa 100644
--- a/arch/powerpc/configs/linkstation_defconfig
+++ b/arch/powerpc/configs/linkstation_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.29-rc2
-# Mon Jan 26 15:35:29 2009
+# Linux kernel version: 2.6.29-rc6
+# Fri Mar  6 00:07:38 2009
 #
 # CONFIG_PPC64 is not set
 
@@ -71,6 +71,15 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
@@ -88,6 +97,7 @@ CONFIG_NAMESPACES=y
 # CONFIG_IPC_NS is not set
 # CONFIG_USER_NS is not set
 # CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -153,11 +163,6 @@ CONFIG_DEFAULT_AS=y
 # CONFIG_DEFAULT_CFQ is not set
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_FREEZER is not set
 
 #
@@ -294,7 +299,6 @@ CONFIG_NET=y
 #
 # Networking options
 #
-# CONFIG_NET_NS is not set
 CONFIG_COMPAT_NET_DEV_OPS=y
 CONFIG_PACKET=y
 CONFIG_PACKET_MMAP=y
@@ -508,8 +512,8 @@ CONFIG_MTD_CONCAT=y
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_TESTS is not set
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
-# CONFIG_MTD_OF_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
 # CONFIG_MTD_AR7_PARTS is not set
 
 #
@@ -587,7 +591,6 @@ CONFIG_MTD_PHYSMAP=y
 # LPDDR flash memory drivers
 #
 # CONFIG_MTD_LPDDR is not set
-# CONFIG_MTD_QINFO_PROBE is not set
 
 #
 # UBI - Unsorted block images
@@ -617,13 +620,19 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
 # CONFIG_BLK_DEV_HD is not set
 CONFIG_MISC_DEVICES=y
 # CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
 # CONFIG_ICS932S401 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
 # CONFIG_HP_ILO is not set
 # CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+CONFIG_EEPROM_LEGACY=m
+# CONFIG_EEPROM_93CX6 is not set
 CONFIG_HAVE_IDE=y
 # CONFIG_IDE is not set
 
@@ -839,6 +848,7 @@ CONFIG_R8169=y
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
 # CONFIG_JME is not set
 CONFIG_NETDEV_10000=y
 # CONFIG_CHELSIO_T1 is not set
@@ -1037,8 +1047,6 @@ CONFIG_I2C_MPC=y
 # Miscellaneous I2C Chip support
 #
 # CONFIG_DS1682 is not set
-# CONFIG_EEPROM_AT24 is not set
-CONFIG_EEPROM_LEGACY=m
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCA9539 is not set
diff --git a/arch/powerpc/configs/storcenter_defconfig b/arch/powerpc/configs/storcenter_defconfig
index 86512c8790d1..94903465ea12 100644
--- a/arch/powerpc/configs/storcenter_defconfig
+++ b/arch/powerpc/configs/storcenter_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.29-rc2
-# Mon Jan 26 15:35:46 2009
+# Linux kernel version: 2.6.29-rc6
+# Fri Mar  6 00:09:08 2009
 #
 # CONFIG_PPC64 is not set
 
@@ -71,6 +71,15 @@ CONFIG_SYSVIPC_SYSCTL=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
 # CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_GROUP_SCHED=y
@@ -144,11 +153,6 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="cfq"
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
 # CONFIG_FREEZER is not set
 
 #
@@ -377,8 +381,8 @@ CONFIG_MTD=y
 CONFIG_MTD_PARTITIONS=y
 # CONFIG_MTD_TESTS is not set
 # CONFIG_MTD_REDBOOT_PARTS is not set
-# CONFIG_MTD_CMDLINE_PARTS is not set
-# CONFIG_MTD_OF_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
 # CONFIG_MTD_AR7_PARTS is not set
 
 #
@@ -452,7 +456,6 @@ CONFIG_MTD_PHYSMAP=y
 # LPDDR flash memory drivers
 #
 # CONFIG_MTD_LPDDR is not set
-# CONFIG_MTD_QINFO_PROBE is not set
 
 #
 # UBI - Unsorted block images
@@ -478,13 +481,19 @@ CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_HD is not set
 CONFIG_MISC_DEVICES=y
 # CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
 # CONFIG_ICS932S401 is not set
 # CONFIG_ENCLOSURE_SERVICES is not set
 # CONFIG_HP_ILO is not set
 # CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+# CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_93CX6 is not set
 CONFIG_HAVE_IDE=y
 CONFIG_IDE=y
 
@@ -677,6 +686,7 @@ CONFIG_R8169=y
 # CONFIG_QLA3XXX is not set
 # CONFIG_ATL1 is not set
 # CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
 # CONFIG_JME is not set
 # CONFIG_NETDEV_10000 is not set
 # CONFIG_TR is not set
@@ -818,8 +828,6 @@ CONFIG_I2C_MPC=y
 # Miscellaneous I2C Chip support
 #
 # CONFIG_DS1682 is not set
-# CONFIG_EEPROM_AT24 is not set
-# CONFIG_EEPROM_LEGACY is not set
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCA9539 is not set
@@ -1159,6 +1167,7 @@ CONFIG_JFFS2_RTIME=y
 # CONFIG_SYSV_FS is not set
 # CONFIG_UFS_FS is not set
 # CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_EXPORTFS=m
 
 #
 # Partition Types
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index 2ca7be65c2d2..244f997de791 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -12,7 +12,6 @@
 
 #include <linux/kernel.h>
 #include <linux/initrd.h>
-#include <linux/mtd/physmap.h>
 #include <linux/of_platform.h>
 
 #include <asm/time.h>
@@ -22,39 +21,6 @@
 
 #include "mpc10x.h"
 
-static struct mtd_partition linkstation_physmap_partitions[] = {
-        {
-                .name   = "mtd_firmimg",
-                .offset = 0x000000,
-                .size   = 0x300000,
-        },
-        {
-                .name   = "mtd_bootcode",
-                .offset = 0x300000,
-                .size   = 0x070000,
-        },
-        {
-                .name   = "mtd_status",
-                .offset = 0x370000,
-                .size   = 0x010000,
-        },
-        {
-                .name   = "mtd_conf",
-                .offset = 0x380000,
-                .size   = 0x080000,
-        },
-        {
-                .name   = "mtd_allflash",
-                .offset = 0x000000,
-                .size   = 0x400000,
-        },
-        {
-                .name   = "mtd_data",
-                .offset = 0x310000,
-                .size   = 0x0f0000,
-        },
-};
-
 static __initdata struct of_device_id of_bus_ids[] = {
         { .type = "soc", },
         { .compatible = "simple-bus", },
@@ -99,10 +65,6 @@ static int __init linkstation_add_bridge(struct device_node *dev)
 static void __init linkstation_setup_arch(void)
 {
         struct device_node *np;
-#ifdef CONFIG_MTD_PHYSMAP
-        physmap_set_partitions(linkstation_physmap_partitions,
-                               ARRAY_SIZE(linkstation_physmap_partitions));
-#endif
 
         /* Lookup PCI host bridges */
         for_each_compatible_node(np, "pci", "mpc10x-pci")
diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
index 8864e4884980..613070e9ddbe 100644
--- a/arch/powerpc/platforms/embedded6xx/storcenter.c
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/initrd.h>
-#include <linux/mtd/physmap.h>
 #include <linux/of_platform.h>
 
 #include <asm/system.h>
@@ -26,32 +25,6 @@
 #include "mpc10x.h"
 
 
-#ifdef CONFIG_MTD_PHYSMAP
-static struct mtd_partition storcenter_physmap_partitions[] = {
-        {
-                .name   = "kernel",
-                .offset = 0x000000,
-                .size   = 0x170000,
-        },
-        {
-                .name   = "rootfs",
-                .offset = 0x170000,
-                .size   = 0x590000,
-        },
-        {
-                .name   = "uboot",
-                .offset = 0x700000,
-                .size   = 0x040000,
-        },
-        {
-                .name   = "config",
-                .offset = 0x740000,
-                .size   = 0x0c0000,
-        },
-};
-#endif
-
-
 static __initdata struct of_device_id storcenter_of_bus[] = {
         { .name = "soc", },
         {},
@@ -96,11 +69,6 @@ static void __init storcenter_setup_arch(void)
 {
         struct device_node *np;
 
-#ifdef CONFIG_MTD_PHYSMAP
-        physmap_set_partitions(storcenter_physmap_partitions,
-                               ARRAY_SIZE(storcenter_physmap_partitions));
-#endif
-
         /* Lookup PCI host bridges */
         for_each_compatible_node(np, "pci", "mpc10x-pci")
                 storcenter_add_bridge(np);
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 7be47d1a97e4..7233bd7e357b 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -515,6 +515,17 @@ static int split_large_page(pte_t *kpte, unsigned long address)
          * primary protection behavior:
          */
         __set_pmd_pte(kpte, address, mk_pte(base, __pgprot(_KERNPG_TABLE)));
+
+        /*
+         * Intel Atom errata AAH41 workaround.
+         *
+         * The real fix should be in hw or in a microcode update, but
+         * we also probabilistically try to reduce the window of having
+         * a large TLB mixed with 4K TLBs while instruction fetches are
+         * going on.
+         */
+        __flush_tlb_all();
+
         base = NULL;
 
 out_unlock:
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 6e6eb445d374..c76bccf5354d 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -1139,15 +1139,6 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
         hvcsd->tty = tty;
         tty->driver_data = hvcsd;
 
-        /*
-         * Set this driver to low latency so that we actually have a chance at
-         * catching a throttled TTY after we flip_buffer_push.  Otherwise the
-         * flush_to_async may not execute until after the kernel_thread has
-         * yielded and resumed the next flip_buffer_push resulting in data
-         * loss.
-         */
-        tty->low_latency = 1;
-
         memset(&hvcsd->buffer[0], 0x00, HVCS_BUFF_LEN);
 
         /*
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 406f8742a260..2989056a9e39 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -810,7 +810,6 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
         hp = &hvsi_ports[line];
 
         tty->driver_data = hp;
-        tty->low_latency = 1; /* avoid throttle/tty_flip_buffer_push race */
 
         mb();
         if (hp->state == HVSI_FSP_DIED)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 6dab63bdc4c1..6d21b9e48b89 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1105,7 +1105,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                                          1024 * 1024,
                                          MTRR_TYPE_WRCOMB, 1);
         if (dev_priv->mm.gtt_mtrr < 0) {
-                DRM_INFO("MTRR allocation failed\n.  Graphics "
+                DRM_INFO("MTRR allocation failed.  Graphics "
                          "performance may suffer.\n");
         }
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 17fa40858d26..d6cc9861e0a1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -279,7 +279,6 @@ typedef struct drm_i915_private {
         u8 saveAR_INDEX;
         u8 saveAR[21];
         u8 saveDACMASK;
-        u8 saveDACDATA[256*3]; /* 256 3-byte colors */
         u8 saveCR[37];
 
         struct {
@@ -457,6 +456,12 @@ struct drm_i915_gem_object {
 
         /** for phy allocated objects */
         struct drm_i915_gem_phys_object *phys_obj;
+
+        /**
+         * Used for checking the object doesn't appear more than once
+         * in an execbuffer object list.
+         */
+        int in_execbuffer;
 };
 
 /**
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 85685bfd12da..37427e4016cb 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1476,7 +1476,7 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
         struct drm_i915_gem_object *obj_priv = obj->driver_private;
         int regnum = obj_priv->fence_reg;
         int tile_width;
-        uint32_t val;
+        uint32_t fence_reg, val;
         uint32_t pitch_val;
 
         if ((obj_priv->gtt_offset & ~I915_FENCE_START_MASK) ||
@@ -1503,7 +1503,11 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
         val |= pitch_val << I830_FENCE_PITCH_SHIFT;
         val |= I830_FENCE_REG_VALID;
 
-        I915_WRITE(FENCE_REG_830_0 + (regnum * 4), val);
+        if (regnum < 8)
+                fence_reg = FENCE_REG_830_0 + (regnum * 4);
+        else
+                fence_reg = FENCE_REG_945_8 + ((regnum - 8) * 4);
+        I915_WRITE(fence_reg, val);
 }
 
 static void i830_write_fence_reg(struct drm_i915_fence_reg *reg)
@@ -1557,7 +1561,8 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct drm_i915_gem_object *obj_priv = obj->driver_private;
         struct drm_i915_fence_reg *reg = NULL;
-        int i, ret;
+        struct drm_i915_gem_object *old_obj_priv = NULL;
+        int i, ret, avail;
 
         switch (obj_priv->tiling_mode) {
         case I915_TILING_NONE:
@@ -1580,25 +1585,46 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
         }
 
         /* First try to find a free reg */
+try_again:
+        avail = 0;
         for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) {
                 reg = &dev_priv->fence_regs[i];
                 if (!reg->obj)
                         break;
+
+                old_obj_priv = reg->obj->driver_private;
+                if (!old_obj_priv->pin_count)
+                    avail++;
         }
 
         /* None available, try to steal one or wait for a user to finish */
         if (i == dev_priv->num_fence_regs) {
-                struct drm_i915_gem_object *old_obj_priv = NULL;
+                uint32_t seqno = dev_priv->mm.next_gem_seqno;
                 loff_t offset;
 
-try_again:
-                /* Could try to use LRU here instead... */
+                if (avail == 0)
+                        return -ENOMEM;
+
                 for (i = dev_priv->fence_reg_start;
                      i < dev_priv->num_fence_regs; i++) {
+                        uint32_t this_seqno;
+
                         reg = &dev_priv->fence_regs[i];
                         old_obj_priv = reg->obj->driver_private;
-                        if (!old_obj_priv->pin_count)
+
+                        if (old_obj_priv->pin_count)
+                                continue;
+
+                        /* i915 uses fences for GPU access to tiled buffers */
+                        if (IS_I965G(dev) || !old_obj_priv->active)
                                 break;
+
+                        /* find the seqno of the first available fence */
+                        this_seqno = old_obj_priv->last_rendering_seqno;
+                        if (this_seqno != 0 &&
+                            reg->obj->write_domain == 0 &&
+                            i915_seqno_passed(seqno, this_seqno))
+                                seqno = this_seqno;
                 }
 
                 /*
@@ -1606,15 +1632,25 @@ try_again:
                  * objects to finish before trying again.
                  */
                 if (i == dev_priv->num_fence_regs) {
-                        ret = i915_gem_object_set_to_gtt_domain(reg->obj, 0);
-                        if (ret) {
-                                WARN(ret != -ERESTARTSYS,
-                                     "switch to GTT domain failed: %d\n", ret);
-                                return ret;
+                        if (seqno == dev_priv->mm.next_gem_seqno) {
+                                i915_gem_flush(dev,
+                                               I915_GEM_GPU_DOMAINS,
+                                               I915_GEM_GPU_DOMAINS);
+                                seqno = i915_add_request(dev,
+                                                         I915_GEM_GPU_DOMAINS);
+                                if (seqno == 0)
+                                        return -ENOMEM;
                         }
+
+                        ret = i915_wait_request(dev, seqno);
+                        if (ret)
+                                return ret;
                         goto try_again;
                 }
 
+                BUG_ON(old_obj_priv->active ||
+                       (reg->obj->write_domain & I915_GEM_GPU_DOMAINS));
+
                 /*
                  * Zap this virtual mapping so we can set up a fence again
                  * for this object next time we need it.
@@ -1655,8 +1691,17 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
 
         if (IS_I965G(dev))
                 I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
-        else
-                I915_WRITE(FENCE_REG_830_0 + (obj_priv->fence_reg * 4), 0);
+        else {
+                uint32_t fence_reg;
+
+                if (obj_priv->fence_reg < 8)
+                        fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
+                else
+                        fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
+                                                       8) * 4;
+
+                I915_WRITE(fence_reg, 0);
+        }
 
         dev_priv->fence_regs[obj_priv->fence_reg].obj = NULL;
         obj_priv->fence_reg = I915_FENCE_REG_NONE;
@@ -2469,6 +2514,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
         struct drm_i915_gem_exec_object *exec_list = NULL;
         struct drm_gem_object **object_list = NULL;
         struct drm_gem_object *batch_obj;
+        struct drm_i915_gem_object *obj_priv;
         int ret, i, pinned = 0;
         uint64_t exec_offset;
         uint32_t seqno, flush_domains;
@@ -2533,6 +2579,15 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
                         ret = -EBADF;
                         goto err;
                 }
+
+                obj_priv = object_list[i]->driver_private;
+                if (obj_priv->in_execbuffer) {
+                        DRM_ERROR("Object %p appears more than once in object list\n",
+                                   object_list[i]);
+                        ret = -EBADF;
+                        goto err;
+                }
+                obj_priv->in_execbuffer = true;
         }
 
         /* Pin and relocate */
@@ -2674,8 +2729,13 @@ err:
         for (i = 0; i < pinned; i++)
                 i915_gem_object_unpin(object_list[i]);
 
-        for (i = 0; i < args->buffer_count; i++)
+        for (i = 0; i < args->buffer_count; i++) {
+                if (object_list[i]) {
+                        obj_priv = object_list[i]->driver_private;
+                        obj_priv->in_execbuffer = false;
+                }
                 drm_gem_object_unreference(object_list[i]);
+        }
 
         mutex_unlock(&dev->struct_mutex);
 
@@ -2712,17 +2772,24 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
                 ret = i915_gem_object_bind_to_gtt(obj, alignment);
                 if (ret != 0) {
                         if (ret != -EBUSY && ret != -ERESTARTSYS)
-                                DRM_ERROR("Failure to bind: %d", ret);
+                                DRM_ERROR("Failure to bind: %d\n", ret);
+                        return ret;
+                }
+        }
+        /*
+         * Pre-965 chips need a fence register set up in order to
+         * properly handle tiled surfaces.
+         */
+        if (!IS_I965G(dev) &&
+            obj_priv->fence_reg == I915_FENCE_REG_NONE &&
+            obj_priv->tiling_mode != I915_TILING_NONE) {
+                ret = i915_gem_object_get_fence_reg(obj, true);
+                if (ret != 0) {
+                        if (ret != -EBUSY && ret != -ERESTARTSYS)
+                                DRM_ERROR("Failure to install fence: %d\n",
+                                          ret);
                         return ret;
                 }
-                /*
-                 * Pre-965 chips need a fence register set up in order to
-                 * properly handle tiled surfaces.
-                 */
-                if (!IS_I965G(dev) &&
-                    obj_priv->fence_reg == I915_FENCE_REG_NONE &&
-                    obj_priv->tiling_mode != I915_TILING_NONE)
-                        i915_gem_object_get_fence_reg(obj, true);
         }
         obj_priv->pin_count++;
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 9d6539a868b3..90600d899413 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -184,6 +184,7 @@
  * Fence registers
  */
 #define FENCE_REG_830_0                 0x2000
+#define FENCE_REG_945_8                 0x3000
 #define   I830_FENCE_START_MASK         0x07f80000
 #define   I830_FENCE_TILING_Y_SHIFT     12
 #define   I830_FENCE_SIZE_BITS(size)    ((ffs((size) >> 19) - 1) << 8)
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 5d84027ee8f3..d669cc2b42c0 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -119,11 +119,6 @@ static void i915_save_vga(struct drm_device *dev)
 
         /* VGA color palette registers */
         dev_priv->saveDACMASK = I915_READ8(VGA_DACMASK);
-        /* DACCRX automatically increments during read */
-        I915_WRITE8(VGA_DACRX, 0);
-        /* Read 3 bytes of color data from each index */
-        for (i = 0; i < 256 * 3; i++)
-                dev_priv->saveDACDATA[i] = I915_READ8(VGA_DACDATA);
 
         /* MSR bits */
         dev_priv->saveMSR = I915_READ8(VGA_MSR_READ);
@@ -225,12 +220,6 @@ static void i915_restore_vga(struct drm_device *dev)
 
         /* VGA color palette registers */
         I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK);
-        /* DACCRX automatically increments during read */
-        I915_WRITE8(VGA_DACWX, 0);
-        /* Read 3 bytes of color data from each index */
-        for (i = 0; i < 256 * 3; i++)
-                I915_WRITE8(VGA_DACDATA, dev_priv->saveDACDATA[i]);
-
 }
 
 int i915_save_state(struct drm_device *dev)
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 2181ce4d7ebd..35e8eb02b9e9 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1853,13 +1853,14 @@ static void aty128_bl_exit(struct backlight_device *bd)
  *  Initialisation
  */
 
-#ifdef CONFIG_PPC_PMAC
+#ifdef CONFIG_PPC_PMAC__disabled
 static void aty128_early_resume(void *data)
 {
         struct aty128fb_par *par = data;
 
         if (try_acquire_console_sem())
                 return;
+        pci_restore_state(par->pdev);
         aty128_do_resume(par->pdev);
         release_console_sem();
 }
@@ -1907,7 +1908,14 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i
                 /* Indicate sleep capability */
                 if (par->chip_gen == rage_M3) {
                         pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1);
+#if 0 /* Disable the early video resume hack for now as it's causing problems, among
+       * others we now rely on the PCI core restoring the config space for us, which
+       * isn't the case with that hack, and that code path causes various things to
+       * be called with interrupts off while they shouldn't. I'm leaving the code in
+       * as it can be useful for debugging purposes
+       */
                         pmac_set_early_video_resume(aty128_early_resume, par);
+#endif
                 }
 
                 /* Find default mode */
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index ca5f0dc28546..81603f85e17e 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2762,12 +2762,13 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
         return rc;
 }
 
-#ifdef CONFIG_PPC_OF
+#ifdef CONFIG_PPC_OF__disabled
 static void radeonfb_early_resume(void *data)
 {
         struct radeonfb_info *rinfo = data;
 
         rinfo->no_schedule = 1;
+        pci_restore_state(rinfo->pdev);
         radeonfb_pci_resume(rinfo->pdev);
         rinfo->no_schedule = 0;
 }
@@ -2834,7 +2835,14 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
                  */
                 if (rinfo->pm_mode != radeon_pm_none) {
                         pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, rinfo->of_node, 0, 1);
+#if 0 /* Disable the early video resume hack for now as it's causing problems, among
+       * others we now rely on the PCI core restoring the config space for us, which
+       * isn't the case with that hack, and that code path causes various things to
+       * be called with interrupts off while they shouldn't. I'm leaving the code in
+       * as it can be useful for debugging purposes
+       */
                         pmac_set_early_video_resume(radeonfb_early_resume, rinfo);
+#endif
                 }
 
 #if 0
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 6b74d09adbe5..de0004fe6e00 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -202,9 +202,9 @@ static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
         sector_t blocknr;
 
         /* fat_get_cluster() assumes the requested blocknr isn't truncated. */
-        mutex_lock(&mapping->host->i_mutex);
+        down_read(&mapping->host->i_alloc_sem);
         blocknr = generic_block_bmap(mapping, block, fat_get_block);
-        mutex_unlock(&mapping->host->i_mutex);
+        up_read(&mapping->host->i_alloc_sem);
 
         return blocknr;
 }
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 2d1345112a42..e9983837d08d 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -80,7 +80,7 @@ static const struct file_operations proc_kpagecount_operations = {
 #define KPF_RECLAIM    9
 #define KPF_BUDDY     10
 
-#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
+#define kpf_copy_bit(flags, dstpos, srcpos) (((flags >> srcpos) & 1) << dstpos)
 
 static ssize_t kpageflags_read(struct file *file, char __user *buf,
                              size_t count, loff_t *ppos)