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[linux-2.6.git] / drivers / char / agp / amd64-agp.c

diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 2e8b2ae..88d73a5 100644 (file)
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -46,6 +46,11 @@
 #define NVIDIA_X86_64_1_APBASE2                0xd8
 #define NVIDIA_X86_64_1_APLIMIT2       0xdc
 
+/* ULi K8 registers */
+#define ULI_X86_64_BASE_ADDR           0x10
+#define ULI_X86_64_HTT_FEA_REG         0x50
+#define ULI_X86_64_ENU_SCR_REG         0x54
+
 static int nr_garts;
 static struct pci_dev * hammers[MAX_HAMMER_GARTS];
 
@@ -109,6 +114,7 @@ static int amd64_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
                pte |= GPTE_VALID | GPTE_COHERENT;
 
                writel(pte, agp_bridge->gatt_table+j);
+               readl(agp_bridge->gatt_table+j);        /* PCI Posting. */
        }
        amd64_tlbflush(mem);
        return 0;
@@ -405,6 +411,62 @@ static void __devinit amd8151_init(struct pci_dev *pdev, struct agp_bridge_data
        }
 }
 
+
+static struct aper_size_info_32 uli_sizes[7] =
+{
+       {256, 65536, 6, 10},
+        {128, 32768, 5, 9},
+        {64, 16384, 4, 8},
+        {32, 8192, 3, 7},
+        {16, 4096, 2, 6},
+        {8, 2048, 1, 4},
+        {4, 1024, 0, 3}
+};
+
+static int __devinit uli_agp_init(struct pci_dev *pdev)
+{
+       u32 httfea,baseaddr,enuscr;
+       struct pci_dev *dev1;
+       int i;
+       unsigned size = amd64_fetch_size();
+       printk(KERN_INFO PFX "Setting up ULi AGP. \n");
+       dev1 = pci_find_slot ((unsigned int)pdev->bus->number,PCI_DEVFN(0,0));
+       if (dev1 == NULL) {
+               printk(KERN_INFO PFX "agpgart: Detected a ULi chipset, "
+                       "but could not fine the secondary device.\n");
+               return -ENODEV;
+       }
+        for (i = 0; i < ARRAY_SIZE(uli_sizes); i++)
+                if (uli_sizes[i].size == size)
+                        break;
+
+        if (i == ARRAY_SIZE(uli_sizes)) {
+                printk(KERN_INFO PFX "No ULi size found for %d\n", size);
+                return -ENODEV;
+        }
+
+
+        /* shadow x86-64 registers into ULi registers */
+        pci_read_config_dword (hammers[0], AMD64_GARTAPERTUREBASE, &httfea);
+
+        /* if x86-64 aperture base is beyond 4G, exit here */
+        if ( (httfea & 0x7fff) >> (32 - 25) )
+                 return -ENODEV;
+
+        httfea = (httfea& 0x7fff) << 25;
+
+        pci_read_config_dword(pdev, ULI_X86_64_BASE_ADDR, &baseaddr);
+        baseaddr&= ~PCI_BASE_ADDRESS_MEM_MASK;
+        baseaddr|= httfea;
+        pci_write_config_dword(pdev, ULI_X86_64_BASE_ADDR, baseaddr);
+
+        enuscr= httfea+ (size * 1024 * 1024) - 1;
+        pci_write_config_dword(dev1, ULI_X86_64_HTT_FEA_REG, httfea);
+        pci_write_config_dword(dev1, ULI_X86_64_ENU_SCR_REG, enuscr);
+        return 0;
+}
+
+
 static struct aper_size_info_32 nforce3_sizes[5] =
 {
        {512,  131072, 7, 0x00000000 },
@@ -513,6 +575,14 @@ static int __devinit agp_amd64_probe(struct pci_dev *pdev,
                }
        }
 
+       if (pdev->vendor == PCI_VENDOR_ID_AL) {
+               int ret = uli_agp_init(pdev);
+               if (ret) {
+                       agp_put_bridge(bridge);
+                       return ret;
+               }
+       }
+
        pci_set_drvdata(pdev, bridge);
        return agp_add_bridge(bridge);
 }
@@ -536,6 +606,15 @@ static struct pci_device_id agp_amd64_pci_table[] = {
        .subvendor      = PCI_ANY_ID,
        .subdevice      = PCI_ANY_ID,
        },
+       /* ULi M1689 */
+       {
+       .class          = (PCI_CLASS_BRIDGE_HOST << 8),
+       .class_mask     = ~0,
+       .vendor         = PCI_VENDOR_ID_AL,
+       .device         = PCI_DEVICE_ID_AL_M1689,
+       .subvendor      = PCI_ANY_ID,
+       .subdevice      = PCI_ANY_ID,
+       },
        /* VIA K8T800Pro */
        {
        .class          = (PCI_CLASS_BRIDGE_HOST << 8),