18 files changed, 79 insertions, 86 deletions

diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h
index ad9c11391d81..c1fe013c64f3 100644
--- a/drivers/char/agp/agp.h
+++ b/drivers/char/agp/agp.h
@@ -278,6 +278,8 @@ void agp3_generic_cleanup(void);
 #define AGP_GENERIC_SIZES_ENTRIES 11
 extern struct aper_size_info_16 agp3_generic_sizes[];
 
+#define virt_to_gart(x) (phys_to_gart(virt_to_phys(x)))
+#define gart_to_virt(x) (phys_to_virt(gart_to_phys(x)))
 
 extern int agp_off;
 extern int agp_try_unsupported_boot;
diff --git a/drivers/char/agp/ali-agp.c b/drivers/char/agp/ali-agp.c
index 0212febda654..9c9c9c2247ce 100644
--- a/drivers/char/agp/ali-agp.c
+++ b/drivers/char/agp/ali-agp.c
@@ -150,7 +150,7 @@ static void *m1541_alloc_page(struct agp_bridge_data *bridge)
         pci_read_config_dword(agp_bridge->dev, ALI_CACHE_FLUSH_CTRL, &temp);
         pci_write_config_dword(agp_bridge->dev, ALI_CACHE_FLUSH_CTRL,
                         (((temp & ALI_CACHE_FLUSH_ADDR_MASK) |
-                          virt_to_phys(addr)) | ALI_CACHE_FLUSH_EN ));
+                          virt_to_gart(addr)) | ALI_CACHE_FLUSH_EN ));
         return addr;
 }
 
@@ -174,7 +174,7 @@ static void m1541_destroy_page(void * addr)
         pci_read_config_dword(agp_bridge->dev, ALI_CACHE_FLUSH_CTRL, &temp);
         pci_write_config_dword(agp_bridge->dev, ALI_CACHE_FLUSH_CTRL,
                         (((temp & ALI_CACHE_FLUSH_ADDR_MASK) |
-                          virt_to_phys(addr)) | ALI_CACHE_FLUSH_EN));
+                          virt_to_gart(addr)) | ALI_CACHE_FLUSH_EN));
         agp_generic_destroy_page(addr);
 }
 
diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c
index e62a3c2c44a9..3a41672e4d66 100644
--- a/drivers/char/agp/amd-k7-agp.c
+++ b/drivers/char/agp/amd-k7-agp.c
@@ -43,7 +43,7 @@ static int amd_create_page_map(struct amd_page_map *page_map)
 
         SetPageReserved(virt_to_page(page_map->real));
         global_cache_flush();
-        page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
+        page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
                                             PAGE_SIZE);
         if (page_map->remapped == NULL) {
                 ClearPageReserved(virt_to_page(page_map->real));
@@ -154,7 +154,7 @@ static int amd_create_gatt_table(struct agp_bridge_data *bridge)
 
         agp_bridge->gatt_table_real = (u32 *)page_dir.real;
         agp_bridge->gatt_table = (u32 __iomem *)page_dir.remapped;
-        agp_bridge->gatt_bus_addr = virt_to_phys(page_dir.real);
+        agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
 
         /* Get the address for the gart region.
          * This is a bus address even on the alpha, b/c its
@@ -167,7 +167,7 @@ static int amd_create_gatt_table(struct agp_bridge_data *bridge)
 
         /* Calculate the agp offset */
         for (i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
-                writel(virt_to_phys(amd_irongate_private.gatt_pages[i]->real) | 1,
+                writel(virt_to_gart(amd_irongate_private.gatt_pages[i]->real) | 1,
                         page_dir.remapped+GET_PAGE_DIR_OFF(addr));
                 readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr));        /* PCI Posting. */
         }
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 399c042f68f0..1407945a5892 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -219,7 +219,7 @@ static struct aper_size_info_32 amd_8151_sizes[7] =
 
 static int amd_8151_configure(void)
 {
-        unsigned long gatt_bus = virt_to_phys(agp_bridge->gatt_table_real);
+        unsigned long gatt_bus = virt_to_gart(agp_bridge->gatt_table_real);
 
         /* Configure AGP regs in each x86-64 host bridge. */
         for_each_nb() {
@@ -591,7 +591,7 @@ static void __devexit agp_amd64_remove(struct pci_dev *pdev)
 {
         struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
 
-        release_mem_region(virt_to_phys(bridge->gatt_table_real),
+        release_mem_region(virt_to_gart(bridge->gatt_table_real),
                            amd64_aperture_sizes[bridge->aperture_size_idx].size);
         agp_remove_bridge(bridge);
         agp_put_bridge(bridge);
diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
index a65f8827c283..e572ced9100a 100644
--- a/drivers/char/agp/ati-agp.c
+++ b/drivers/char/agp/ati-agp.c
@@ -61,7 +61,7 @@ static int ati_create_page_map(ati_page_map *page_map)
 
         SetPageReserved(virt_to_page(page_map->real));
         err = map_page_into_agp(virt_to_page(page_map->real));
-        page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
+        page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
                                             PAGE_SIZE);
         if (page_map->remapped == NULL || err) {
                 ClearPageReserved(virt_to_page(page_map->real));
@@ -343,7 +343,7 @@ static int ati_create_gatt_table(struct agp_bridge_data *bridge)
 
         agp_bridge->gatt_table_real = (u32 *)page_dir.real;
         agp_bridge->gatt_table = (u32 __iomem *) page_dir.remapped;
-        agp_bridge->gatt_bus_addr = virt_to_bus(page_dir.real);
+        agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
 
         /* Write out the size register */
         current_size = A_SIZE_LVL2(agp_bridge->current_size);
@@ -373,7 +373,7 @@ static int ati_create_gatt_table(struct agp_bridge_data *bridge)
 
         /* Calculate the agp offset */
         for(i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
-                writel(virt_to_bus(ati_generic_private.gatt_pages[i]->real) | 1,
+                writel(virt_to_gart(ati_generic_private.gatt_pages[i]->real) | 1,
                         page_dir.remapped+GET_PAGE_DIR_OFF(addr));
                 readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr));        /* PCI Posting. */
         }
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 2f3dfb63bdc6..4d4e602fdc7e 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -148,7 +148,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
                         return -ENOMEM;
                 }
 
-                bridge->scratch_page_real = virt_to_phys(addr);
+                bridge->scratch_page_real = virt_to_gart(addr);
                 bridge->scratch_page =
                     bridge->driver->mask_memory(bridge, bridge->scratch_page_real, 0);
         }
@@ -189,7 +189,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
 err_out:
         if (bridge->driver->needs_scratch_page)
                 bridge->driver->agp_destroy_page(
-                                phys_to_virt(bridge->scratch_page_real));
+                                gart_to_virt(bridge->scratch_page_real));
         if (got_gatt)
                 bridge->driver->free_gatt_table(bridge);
         if (got_keylist) {
@@ -214,7 +214,7 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
         if (bridge->driver->agp_destroy_page &&
             bridge->driver->needs_scratch_page)
                 bridge->driver->agp_destroy_page(
-                                phys_to_virt(bridge->scratch_page_real));
+                                gart_to_virt(bridge->scratch_page_real));
 }
 
 /* When we remove the global variable agp_bridge from all drivers
diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c
index 1383c3165ea1..ac19fdcd21c1 100644
--- a/drivers/char/agp/efficeon-agp.c
+++ b/drivers/char/agp/efficeon-agp.c
@@ -219,7 +219,7 @@ static int efficeon_create_gatt_table(struct agp_bridge_data *bridge)
 
                 efficeon_private.l1_table[index] = page;
 
-                value = __pa(page) | pati | present | index;
+                value = virt_to_gart(page) | pati | present | index;
 
                 pci_write_config_dword(agp_bridge->dev,
                         EFFICEON_ATTPAGE, value);
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index c321a924e38a..f0079e991bdc 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -153,7 +153,7 @@ void agp_free_memory(struct agp_memory *curr)
         }
         if (curr->page_count != 0) {
                 for (i = 0; i < curr->page_count; i++) {
-                        curr->bridge->driver->agp_destroy_page(phys_to_virt(curr->memory[i]));
+                        curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
                 }
         }
         agp_free_key(curr->key);
@@ -209,7 +209,7 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
                         agp_free_memory(new);
                         return NULL;
                 }
-                new->memory[i] = virt_to_phys(addr);
+                new->memory[i] = virt_to_gart(addr);
                 new->page_count++;
         }
        new->bridge = bridge;
@@ -295,19 +295,6 @@ int agp_num_entries(void)
 EXPORT_SYMBOL_GPL(agp_num_entries);
 
 
-static int check_bridge_mode(struct pci_dev *dev)
-{
-        u32 agp3;
-        u8 cap_ptr;
-
-        cap_ptr = pci_find_capability(dev, PCI_CAP_ID_AGP);
-        pci_read_config_dword(dev, cap_ptr+AGPSTAT, &agp3);
-        if (agp3 & AGPSTAT_MODE_3_0)
-                return 1;
-        return 0;
-}
-
-
 /**
  *      agp_copy_info  -  copy bridge state information
  *
@@ -328,7 +315,7 @@ int agp_copy_info(struct agp_bridge_data *bridge, struct agp_kern_info *info)
         info->version.minor = bridge->version->minor;
         info->chipset = SUPPORTED;
         info->device = bridge->dev;
-        if (check_bridge_mode(bridge->dev))
+        if (bridge->mode & AGPSTAT_MODE_3_0)
                 info->mode = bridge->mode & ~AGP3_RESERVED_MASK;
         else
                 info->mode = bridge->mode & ~AGP2_RESERVED_MASK;
@@ -661,7 +648,7 @@ u32 agp_collect_device_status(struct agp_bridge_data *bridge, u32 requested_mode
                 bridge_agpstat &= ~AGPSTAT_FW;
 
         /* Check to see if we are operating in 3.0 mode */
-        if (check_bridge_mode(agp_bridge->dev))
+        if (agp_bridge->mode & AGPSTAT_MODE_3_0)
                 agp_v3_parse_one(&requested_mode, &bridge_agpstat, &vga_agpstat);
         else
                 agp_v2_parse_one(&requested_mode, &bridge_agpstat, &vga_agpstat);
@@ -732,7 +719,7 @@ void agp_generic_enable(struct agp_bridge_data *bridge, u32 requested_mode)
 
         /* Do AGP version specific frobbing. */
         if (bridge->major_version >= 3) {
-                if (check_bridge_mode(bridge->dev)) {
+                if (bridge->mode & AGPSTAT_MODE_3_0) {
                         /* If we have 3.5, we can do the isoch stuff. */
                         if (bridge->minor_version >= 5)
                                 agp_3_5_enable(bridge);
@@ -806,8 +793,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
                                 break;
                         }
 
-                        table = (char *) __get_free_pages(GFP_KERNEL,
-                                                          page_order);
+                        table = alloc_gatt_pages(page_order);
 
                         if (table == NULL) {
                                 i++;
@@ -838,7 +824,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
                 size = ((struct aper_size_info_fixed *) temp)->size;
                 page_order = ((struct aper_size_info_fixed *) temp)->page_order;
                 num_entries = ((struct aper_size_info_fixed *) temp)->num_entries;
-                table = (char *) __get_free_pages(GFP_KERNEL, page_order);
+                table = alloc_gatt_pages(page_order);
         }
 
         if (table == NULL)
@@ -853,7 +839,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
         agp_gatt_table = (void *)table;
 
         bridge->driver->cache_flush();
-        bridge->gatt_table = ioremap_nocache(virt_to_phys(table),
+        bridge->gatt_table = ioremap_nocache(virt_to_gart(table),
                                         (PAGE_SIZE * (1 << page_order)));
         bridge->driver->cache_flush();
 
@@ -861,11 +847,11 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
                 for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
                         ClearPageReserved(page);
 
-                free_pages((unsigned long) table, page_order);
+                free_gatt_pages(table, page_order);
 
                 return -ENOMEM;
         }
-        bridge->gatt_bus_addr = virt_to_phys(bridge->gatt_table_real);
+        bridge->gatt_bus_addr = virt_to_gart(bridge->gatt_table_real);
 
         /* AK: bogus, should encode addresses > 4GB */
         for (i = 0; i < num_entries; i++) {
@@ -919,7 +905,7 @@ int agp_generic_free_gatt_table(struct agp_bridge_data *bridge)
         for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
                 ClearPageReserved(page);
 
-        free_pages((unsigned long) bridge->gatt_table_real, page_order);
+        free_gatt_pages(bridge->gatt_table_real, page_order);
 
         agp_gatt_table = NULL;
         bridge->gatt_table = NULL;
diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
index 6052bfa04c72..99762b6c19ae 100644
--- a/drivers/char/agp/hp-agp.c
+++ b/drivers/char/agp/hp-agp.c
@@ -110,7 +110,7 @@ static int __init hp_zx1_ioc_shared(void)
         hp->gart_size = HP_ZX1_GART_SIZE;
         hp->gatt_entries = hp->gart_size / hp->io_page_size;
 
-        hp->io_pdir = phys_to_virt(readq(hp->ioc_regs+HP_ZX1_PDIR_BASE));
+        hp->io_pdir = gart_to_virt(readq(hp->ioc_regs+HP_ZX1_PDIR_BASE));
         hp->gatt = &hp->io_pdir[HP_ZX1_IOVA_TO_PDIR(hp->gart_base)];
 
         if (hp->gatt[0] != HP_ZX1_SBA_IOMMU_COOKIE) {
@@ -248,7 +248,7 @@ hp_zx1_configure (void)
         agp_bridge->mode = readl(hp->lba_regs+hp->lba_cap_offset+PCI_AGP_STATUS);
 
         if (hp->io_pdir_owner) {
-                writel(virt_to_phys(hp->io_pdir), hp->ioc_regs+HP_ZX1_PDIR_BASE);
+                writel(virt_to_gart(hp->io_pdir), hp->ioc_regs+HP_ZX1_PDIR_BASE);
                 readl(hp->ioc_regs+HP_ZX1_PDIR_BASE);
                 writel(hp->io_tlb_ps, hp->ioc_regs+HP_ZX1_TCNFG);
                 readl(hp->ioc_regs+HP_ZX1_TCNFG);
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index adbea896c0d2..94943298c03e 100644
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -372,7 +372,7 @@ static int i460_alloc_large_page (struct lp_desc *lp)
         }
         memset(lp->alloced_map, 0, map_size);
 
-        lp->paddr = virt_to_phys(lpage);
+        lp->paddr = virt_to_gart(lpage);
         lp->refcount = 0;
         atomic_add(I460_KPAGES_PER_IOPAGE, &agp_bridge->current_memory_agp);
         return 0;
@@ -383,7 +383,7 @@ static void i460_free_large_page (struct lp_desc *lp)
         kfree(lp->alloced_map);
         lp->alloced_map = NULL;
 
-        free_pages((unsigned long) phys_to_virt(lp->paddr), I460_IO_PAGE_SHIFT - PAGE_SHIFT);
+        free_pages((unsigned long) gart_to_virt(lp->paddr), I460_IO_PAGE_SHIFT - PAGE_SHIFT);
         atomic_sub(I460_KPAGES_PER_IOPAGE, &agp_bridge->current_memory_agp);
 }
 
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 8c7d727432bb..51266d6b4d78 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -286,7 +286,7 @@ static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
         if (new == NULL)
                 return NULL;
 
-        new->memory[0] = virt_to_phys(addr);
+        new->memory[0] = virt_to_gart(addr);
         if (pg_count == 4) {
                 /* kludge to get 4 physical pages for ARGB cursor */
                 new->memory[1] = new->memory[0] + PAGE_SIZE;
@@ -329,10 +329,10 @@ static void intel_i810_free_by_type(struct agp_memory *curr)
         agp_free_key(curr->key);
         if(curr->type == AGP_PHYS_MEMORY) {
                 if (curr->page_count == 4)
-                        i8xx_destroy_pages(phys_to_virt(curr->memory[0]));
+                        i8xx_destroy_pages(gart_to_virt(curr->memory[0]));
                 else
                         agp_bridge->driver->agp_destroy_page(
-                                 phys_to_virt(curr->memory[0]));
+                                 gart_to_virt(curr->memory[0]));
                 vfree(curr->memory);
         }
         kfree(curr);
@@ -418,7 +418,8 @@ static void intel_i830_init_gtt_entries(void)
                 case I915_GMCH_GMS_STOLEN_48M:
                         /* Check it's really I915G */
                         if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
-                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
                                 gtt_entries = MB(48) - KB(size);
                         else
                                 gtt_entries = 0;
@@ -426,7 +427,8 @@ static void intel_i830_init_gtt_entries(void)
                 case I915_GMCH_GMS_STOLEN_64M:
                         /* Check it's really I915G */
                         if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
-                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
                                 gtt_entries = MB(64) - KB(size);
                         else
                                 gtt_entries = 0;
@@ -1662,6 +1664,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
                 }
                 name = "915GM";
                 break;
+        case PCI_DEVICE_ID_INTEL_82945G_HB:
+                if (find_i830(PCI_DEVICE_ID_INTEL_82945G_IG)) {
+                        bridge->driver = &intel_915_driver;
+                } else {
+                        bridge->driver = &intel_845_driver;
+                }
+                name = "945G";
+                break;
         case PCI_DEVICE_ID_INTEL_7505_0:
                 bridge->driver = &intel_7505_driver;
                 name = "E7505";
@@ -1801,6 +1811,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
         ID(PCI_DEVICE_ID_INTEL_7205_0),
         ID(PCI_DEVICE_ID_INTEL_82915G_HB),
         ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
+        ID(PCI_DEVICE_ID_INTEL_82945G_HB),
         { }
 };
 
diff --git a/drivers/char/agp/sgi-agp.c b/drivers/char/agp/sgi-agp.c
index 4b3eda267976..d3aa159c9dec 100644
--- a/drivers/char/agp/sgi-agp.c
+++ b/drivers/char/agp/sgi-agp.c
@@ -133,11 +133,14 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
         off_t j;
         void *temp;
         struct agp_bridge_data *bridge;
+        u64 *table;
 
         bridge = mem->bridge;
         if (!bridge)
                 return -EINVAL;
 
+        table = (u64 *)bridge->gatt_table;
+
         temp = bridge->current_size;
 
         switch (bridge->driver->size_type) {
@@ -175,7 +178,7 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
         j = pg_start;
 
         while (j < (pg_start + mem->page_count)) {
-                if (*(bridge->gatt_table + j))
+                if (table[j])
                         return -EBUSY;
                 j++;
         }
@@ -186,7 +189,7 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
         }
 
         for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
-                *(bridge->gatt_table + j) =
+                table[j] =
                     bridge->driver->mask_memory(bridge, mem->memory[i],
                                                 mem->type);
         }
@@ -200,6 +203,7 @@ static int sgi_tioca_remove_memory(struct agp_memory *mem, off_t pg_start,
 {
         size_t i;
         struct agp_bridge_data *bridge;
+        u64 *table;
 
         bridge = mem->bridge;
         if (!bridge)
@@ -209,8 +213,10 @@ static int sgi_tioca_remove_memory(struct agp_memory *mem, off_t pg_start,
                 return -EINVAL;
         }
 
+        table = (u64 *)bridge->gatt_table;
+
         for (i = pg_start; i < (mem->page_count + pg_start); i++) {
-                *(bridge->gatt_table + i) = 0;
+                table[i] = 0;
         }
 
         bridge->driver->tlb_flush(mem);
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index 10c23302dd84..a9fb12c20eb7 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -51,7 +51,7 @@ static int serverworks_create_page_map(struct serverworks_page_map *page_map)
         }
         SetPageReserved(virt_to_page(page_map->real));
         global_cache_flush();
-        page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real), 
+        page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
                                             PAGE_SIZE);
         if (page_map->remapped == NULL) {
                 ClearPageReserved(virt_to_page(page_map->real));
@@ -162,7 +162,7 @@ static int serverworks_create_gatt_table(struct agp_bridge_data *bridge)
         /* Create a fake scratch directory */
         for(i = 0; i < 1024; i++) {
                 writel(agp_bridge->scratch_page, serverworks_private.scratch_dir.remapped+i);
-                writel(virt_to_phys(serverworks_private.scratch_dir.real) | 1, page_dir.remapped+i);
+                writel(virt_to_gart(serverworks_private.scratch_dir.real) | 1, page_dir.remapped+i);
         }
 
         retval = serverworks_create_gatt_pages(value->num_entries / 1024);
@@ -174,7 +174,7 @@ static int serverworks_create_gatt_table(struct agp_bridge_data *bridge)
 
         agp_bridge->gatt_table_real = (u32 *)page_dir.real;
         agp_bridge->gatt_table = (u32 __iomem *)page_dir.remapped;
-        agp_bridge->gatt_bus_addr = virt_to_phys(page_dir.real);
+        agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
 
         /* Get the address for the gart region.
          * This is a bus address even on the alpha, b/c its
@@ -187,7 +187,7 @@ static int serverworks_create_gatt_table(struct agp_bridge_data *bridge)
         /* Calculate the agp offset */  
 
         for(i = 0; i < value->num_entries / 1024; i++)
-                writel(virt_to_phys(serverworks_private.gatt_pages[i]->real)|1, page_dir.remapped+i);
+                writel(virt_to_gart(serverworks_private.gatt_pages[i]->real)|1, page_dir.remapped+i);
 
         return 0;
 }
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index a673971f2a90..c8255312b8c1 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -407,7 +407,7 @@ static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
 
         bridge->gatt_table_real = (u32 *) table;
         bridge->gatt_table = (u32 *)table;
-        bridge->gatt_bus_addr = virt_to_phys(table);
+        bridge->gatt_bus_addr = virt_to_gart(table);
 
         for (i = 0; i < num_entries; i++)
                 bridge->gatt_table[i] = 0;
diff --git a/drivers/char/drm/drm_pciids.h b/drivers/char/drm/drm_pciids.h
index 54a2914e3a32..11c6950158b3 100644
--- a/drivers/char/drm/drm_pciids.h
+++ b/drivers/char/drm/drm_pciids.h
@@ -220,5 +220,6 @@
         {0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0x8086, 0x2582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0x8086, 0x2592, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+        {0x8086, 0x2772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
         {0, 0, 0}
 
diff --git a/drivers/char/drm/radeon_irq.c b/drivers/char/drm/radeon_irq.c
index 5b18bee6492e..cd25f28e26a3 100644
--- a/drivers/char/drm/radeon_irq.c
+++ b/drivers/char/drm/radeon_irq.c
@@ -123,11 +123,6 @@ static int radeon_wait_irq(drm_device_t *dev, int swi_nr)
 
         dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
 
-        /* This is a hack to work around mysterious freezes on certain
-         * systems:
-         */ 
-        radeon_acknowledge_irqs( dev_priv );
-
         DRM_WAIT_ON( ret, dev_priv->swi_queue, 3 * DRM_HZ, 
                      RADEON_READ( RADEON_LAST_SWI_REG ) >= swi_nr );
 
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 7a245068e3e5..f022f0944434 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1995,9 +1995,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
         unsigned char ch, gdl;
         int ignored = 0;
         int cnt = 0;
-        unsigned char *cp;
-        char *fp;
-        int count;
         int recv_room;
         int max = 256;
         unsigned long flags;
@@ -2011,10 +2008,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
                 //return;
         }
 
-        cp = tty->flip.char_buf;
-        fp = tty->flip.flag_buf;
-        count = 0;
-
         // following add by Victor Yu. 09-02-2002
         if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
 
@@ -2041,12 +2034,10 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
                 }
                 while (gdl--) {
                         ch = inb(info->base + UART_RX);
-                        count++;
-                        *cp++ = ch;
-                        *fp++ = 0;
+                        tty_insert_flip_char(tty, ch, 0);
                         cnt++;
                         /*
-                           if((count>=HI_WATER) && (info->stop_rx==0)){
+                           if((cnt>=HI_WATER) && (info->stop_rx==0)){
                            mxser_stoprx(tty);
                            info->stop_rx=1;
                            break;
@@ -2061,7 +2052,7 @@ intr_old:
                 if (max-- < 0)
                         break;
                 /*
-                   if((count>=HI_WATER) && (info->stop_rx==0)){
+                   if((cnt>=HI_WATER) && (info->stop_rx==0)){
                    mxser_stoprx(tty);
                    info->stop_rx=1;
                    break;
@@ -2078,36 +2069,33 @@ intr_old:
                         if (++ignored > 100)
                                 break;
                 } else {
-                        count++;
+                        char flag = 0;
                         if (*status & UART_LSR_SPECIAL) {
                                 if (*status & UART_LSR_BI) {
-                                        *fp++ = TTY_BREAK;
+                                        flag = TTY_BREAK;
 /* added by casper 1/11/2000 */
                                         info->icount.brk++;
-
 /* */
                                         if (info->flags & ASYNC_SAK)
                                                 do_SAK(tty);
                                 } else if (*status & UART_LSR_PE) {
-                                        *fp++ = TTY_PARITY;
+                                        flag = TTY_PARITY;
 /* added by casper 1/11/2000 */
                                         info->icount.parity++;
 /* */
                                 } else if (*status & UART_LSR_FE) {
-                                        *fp++ = TTY_FRAME;
+                                        flag = TTY_FRAME;
 /* added by casper 1/11/2000 */
                                         info->icount.frame++;
 /* */
                                 } else if (*status & UART_LSR_OE) {
-                                        *fp++ = TTY_OVERRUN;
+                                        flag = TTY_OVERRUN;
 /* added by casper 1/11/2000 */
                                         info->icount.overrun++;
 /* */
-                                } else
-                                        *fp++ = 0;
-                        } else
-                                *fp++ = 0;
-                        *cp++ = ch;
+                                }
+                        }
+                        tty_insert_flip_char(tty, ch, flag);
                         cnt++;
                         if (cnt >= recv_room) {
                                 if (!info->ldisc_stop_rx) {
@@ -2132,13 +2120,13 @@ intr_old:
                 // above add by Victor Yu. 09-02-2002
         } while (*status & UART_LSR_DR);
 
-      end_intr:         // add by Victor Yu. 09-02-2002
+end_intr:               // add by Victor Yu. 09-02-2002
 
         mxvar_log.rxcnt[info->port] += cnt;
         info->mon_data.rxcnt += cnt;
         info->mon_data.up_rxcnt += cnt;
         spin_unlock_irqrestore(&info->slock, flags);
-        
+
         tty_flip_buffer_push(tty);
 }
 
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index e5ef1dfc5482..d7aa7a29f67e 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -2867,6 +2867,10 @@ void unblank_screen(void)
  */
 static void blank_screen_t(unsigned long dummy)
 {
+        if (unlikely(!keventd_up())) {
+                mod_timer(&console_timer, jiffies + blankinterval);
+                return;
+        }
         blank_timer_expired = 1;
         schedule_work(&console_work);
 }