6 files changed, 127 insertions, 21 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c930b8ceb418..1e06d233fa83 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -211,6 +211,7 @@ config MIPS_MALTA
         select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_SUPPORTS_MIPS_CMP if BROKEN  # because SYNC_R4K is broken
         select SYS_SUPPORTS_MULTITHREADING
         select SYS_SUPPORTS_SMARTMIPS
         help
@@ -1499,6 +1500,18 @@ config MIPS_APSP_KSPD
           "exit" syscall notifying other kernel modules the SP program is
           exiting.  You probably want to say yes here.
 
+config MIPS_CMP
+        bool "MIPS CMP framework support"
+        depends on SYS_SUPPORTS_MIPS_CMP
+        select SYNC_R4K if BROKEN
+        select SYS_SUPPORTS_SMP
+        select SYS_SUPPORTS_SCHED_SMT if SMP
+        select WEAK_ORDERING
+        default n
+        help
+          This is a placeholder option for the GCMP work. It will need to
+          be handled differently...
+
 config SB1_PASS_1_WORKAROUNDS
         bool
         depends on CPU_SB1_PASS_1
@@ -1675,6 +1688,9 @@ config SMP
 config SMP_UP
         bool
 
+config SYS_SUPPORTS_MIPS_CMP
+        bool
+
 config SYS_SUPPORTS_SMP
         bool
 
@@ -1722,17 +1738,6 @@ config NR_CPUS
           performance should round up your number of processors to the next
           power of two.
 
-config MIPS_CMP
-        bool "MIPS CMP framework support"
-        depends on SMP
-        select SYNC_R4K
-        select SYS_SUPPORTS_SCHED_SMT
-        select WEAK_ORDERING
-        default n
-        help
-          This is a placeholder option for the GCMP work. It will need to
-          be handled differently...
-
 source "kernel/time/Kconfig"
 
 #
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 361364501d34..492a0a8d70fb 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -22,6 +22,7 @@
 #include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/page.h>
+#include <asm/pgtable-bits.h>
 #include <asm/mipsregs.h>
 #include <asm/stackframe.h>
 
diff --git a/arch/mips/sibyte/swarm/Makefile b/arch/mips/sibyte/swarm/Makefile
index f18ba9201bbc..7b45f199d92a 100644
--- a/arch/mips/sibyte/swarm/Makefile
+++ b/arch/mips/sibyte/swarm/Makefile
@@ -1,3 +1,4 @@
-obj-y                           := setup.o rtc_xicor1241.o rtc_m41t81.o
+obj-y                           := platform.o setup.o rtc_xicor1241.o \
+                                   rtc_m41t81.o
 
 obj-$(CONFIG_I2C_BOARDINFO)     += swarm-i2c.o
diff --git a/arch/mips/sibyte/swarm/platform.c b/arch/mips/sibyte/swarm/platform.c
new file mode 100644
index 000000000000..dd0e5b9b64e8
--- /dev/null
+++ b/arch/mips/sibyte/swarm/platform.c
@@ -0,0 +1,81 @@
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+
+#include <asm/sibyte/board.h>
+#include <asm/sibyte/sb1250_genbus.h>
+#include <asm/sibyte/sb1250_regs.h>
+
+#define DRV_NAME        "pata-swarm"
+
+#define SWARM_IDE_SHIFT 5
+#define SWARM_IDE_BASE  0x1f0
+#define SWARM_IDE_CTRL  0x3f6
+
+static struct resource swarm_pata_resource[] = {
+        {
+                .name   = "Swarm GenBus IDE",
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "Swarm GenBus IDE",
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "Swarm GenBus IDE",
+                .flags  = IORESOURCE_IRQ,
+                .start  = K_INT_GB_IDE,
+                .end    = K_INT_GB_IDE,
+        },
+};
+
+static struct pata_platform_info pata_platform_data = {
+        .ioport_shift   = SWARM_IDE_SHIFT,
+};
+
+static struct platform_device swarm_pata_device = {
+        .name           = "pata_platform",
+        .id             = -1,
+        .resource       = swarm_pata_resource,
+        .num_resources  = ARRAY_SIZE(swarm_pata_resource),
+        .dev  = {
+                .platform_data          = &pata_platform_data,
+                .coherent_dma_mask      = ~0,   /* grumble */
+        },
+};
+
+static int __init swarm_pata_init(void)
+{
+        u8 __iomem *base;
+        phys_t offset, size;
+        struct resource *r;
+
+        if (!SIBYTE_HAVE_IDE)
+                return -ENODEV;
+
+        base = ioremap(A_IO_EXT_BASE, 0x800);
+        offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
+        size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
+        iounmap(base);
+
+        offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
+        size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
+        if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
+                pr_info(DRV_NAME ": PATA interface at GenBus disabled\n");
+
+                return -EBUSY;
+        }
+
+        pr_info(DRV_NAME ": PATA interface at GenBus slot %i\n", IDE_CS);
+
+        r = swarm_pata_resource;
+        r[0].start = offset + (SWARM_IDE_BASE << SWARM_IDE_SHIFT);
+        r[0].end   = offset + ((SWARM_IDE_BASE + 8) << SWARM_IDE_SHIFT) - 1;
+        r[1].start = offset + (SWARM_IDE_CTRL << SWARM_IDE_SHIFT);
+        r[1].end   = offset + ((SWARM_IDE_CTRL + 1) << SWARM_IDE_SHIFT) - 1;
+
+        return platform_device_register(&swarm_pata_device);
+}
+
+device_initcall(swarm_pata_init);
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index bfd10fd211cd..c102af85df9c 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1605,6 +1605,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
          */
         {
          .callback = dmi_ignore_irq0_timer_override,
+         .ident = "HP nx6115 laptop",
+         .matches = {
+                     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6115"),
+                     },
+         },
+        {
+         .callback = dmi_ignore_irq0_timer_override,
          .ident = "HP NX6125 laptop",
          .matches = {
                      DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
@@ -1619,6 +1627,14 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
                      DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
                      },
          },
+        {
+         .callback = dmi_ignore_irq0_timer_override,
+         .ident = "HP 6715b laptop",
+         .matches = {
+                     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
+                     },
+         },
         {}
 };
 
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 49285f8fd4d5..be33a5442d82 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -626,7 +626,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
         struct pci_dev *dev;
         void *gatt;
         int i, error;
-        unsigned long start_pfn, end_pfn;
 
         printk(KERN_INFO "PCI-DMA: Disabling AGP.\n");
         aper_size = aper_base = info->aper_size = 0;
@@ -672,12 +671,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
         printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n",
                aper_base, aper_size>>10);
 
-        /* need to map that range */
-        end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
-        if (end_pfn > max_low_pfn_mapped) {
-                start_pfn = (aper_base>>PAGE_SHIFT);
-                init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
-        }
         return 0;
 
  nommu:
@@ -727,7 +720,8 @@ void __init gart_iommu_init(void)
 {
         struct agp_kern_info info;
         unsigned long iommu_start;
-        unsigned long aper_size;
+        unsigned long aper_base, aper_size;
+        unsigned long start_pfn, end_pfn;
         unsigned long scratch;
         long i;
 
@@ -765,8 +759,16 @@ void __init gart_iommu_init(void)
                 return;
         }
 
+        /* need to map that range */
+        aper_size = info.aper_size << 20;
+        aper_base = info.aper_base;
+        end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
+        if (end_pfn > max_low_pfn_mapped) {
+                start_pfn = (aper_base>>PAGE_SHIFT);
+                init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
+        }
+
         printk(KERN_INFO "PCI-DMA: using GART IOMMU.\n");
-        aper_size = info.aper_size * 1024 * 1024;
         iommu_size = check_iommu_size(info.aper_base, aper_size);
         iommu_pages = iommu_size >> PAGE_SHIFT;