Merge branch 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[pandora-kernel.git] / arch / x86 / kernel / amd_iommu_init.c

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 2efc3d5..c9d8ff2 100644 (file)
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -25,12 +25,11 @@
 #include <asm/pci-direct.h>
 #include <asm/amd_iommu_types.h>
 #include <asm/amd_iommu.h>
-#include <asm/gart.h>
+#include <asm/iommu.h>
 
 /*
  * definitions for the ACPI scanning code
  */
-#define DEVID(bus, devfn) (((bus) << 8) | (devfn))
 #define PCI_BUS(x) (((x) >> 8) & 0xff)
 #define IVRS_HEADER_LENGTH 48
 
@@ -295,7 +294,7 @@ static int __init find_last_devid_on_pci(int bus, int dev, int fn, int cap_ptr)
        u32 cap;
 
        cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
-       update_last_devid(DEVID(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
+       update_last_devid(calc_devid(MMIO_GET_BUS(cap), MMIO_GET_LD(cap)));
 
        return 0;
 }
@@ -427,11 +426,18 @@ static void set_dev_entry_bit(u16 devid, u8 bit)
        amd_iommu_dev_table[devid].data[i] |= (1 << _bit);
 }
 
+/* Writes the specific IOMMU for a device into the rlookup table */
+static void __init set_iommu_for_device(struct amd_iommu *iommu, u16 devid)
+{
+       amd_iommu_rlookup_table[devid] = iommu;
+}
+
 /*
  * This function takes the device specific flags read from the ACPI
  * table and sets up the device table entry with that information
  */
-static void __init set_dev_entry_from_acpi(u16 devid, u32 flags, u32 ext_flags)
+static void __init set_dev_entry_from_acpi(struct amd_iommu *iommu,
+                                          u16 devid, u32 flags, u32 ext_flags)
 {
        if (flags & ACPI_DEVFLAG_INITPASS)
                set_dev_entry_bit(devid, DEV_ENTRY_INIT_PASS);
@@ -447,12 +453,8 @@ static void __init set_dev_entry_from_acpi(u16 devid, u32 flags, u32 ext_flags)
                set_dev_entry_bit(devid, DEV_ENTRY_LINT0_PASS);
        if (flags & ACPI_DEVFLAG_LINT1)
                set_dev_entry_bit(devid, DEV_ENTRY_LINT1_PASS);
-}
 
-/* Writes the specific IOMMU for a device into the rlookup table */
-static void __init set_iommu_for_device(struct amd_iommu *iommu, u16 devid)
-{
-       amd_iommu_rlookup_table[devid] = iommu;
+       set_iommu_for_device(iommu, devid);
 }
 
 /*
@@ -494,8 +496,10 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu)
        iommu->cap = read_pci_config(bus, dev, fn, cap_ptr+MMIO_CAP_HDR_OFFSET);
 
        range = read_pci_config(bus, dev, fn, cap_ptr+MMIO_RANGE_OFFSET);
-       iommu->first_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_FD(range));
-       iommu->last_device = DEVID(MMIO_GET_BUS(range), MMIO_GET_LD(range));
+       iommu->first_device = calc_devid(MMIO_GET_BUS(range),
+                                        MMIO_GET_FD(range));
+       iommu->last_device = calc_devid(MMIO_GET_BUS(range),
+                                       MMIO_GET_LD(range));
 }
 
 /*
@@ -549,11 +553,12 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
                case IVHD_DEV_ALL:
                        for (dev_i = iommu->first_device;
                                        dev_i <= iommu->last_device; ++dev_i)
-                               set_dev_entry_from_acpi(dev_i, e->flags, 0);
+                               set_dev_entry_from_acpi(iommu, dev_i,
+                                                       e->flags, 0);
                        break;
                case IVHD_DEV_SELECT:
                        devid = e->devid;
-                       set_dev_entry_from_acpi(devid, e->flags, 0);
+                       set_dev_entry_from_acpi(iommu, devid, e->flags, 0);
                        break;
                case IVHD_DEV_SELECT_RANGE_START:
                        devid_start = e->devid;
@@ -564,7 +569,7 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
                case IVHD_DEV_ALIAS:
                        devid = e->devid;
                        devid_to = e->ext >> 8;
-                       set_dev_entry_from_acpi(devid, e->flags, 0);
+                       set_dev_entry_from_acpi(iommu, devid, e->flags, 0);
                        amd_iommu_alias_table[devid] = devid_to;
                        break;
                case IVHD_DEV_ALIAS_RANGE:
@@ -576,7 +581,8 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
                        break;
                case IVHD_DEV_EXT_SELECT:
                        devid = e->devid;
-                       set_dev_entry_from_acpi(devid, e->flags, e->ext);
+                       set_dev_entry_from_acpi(iommu, devid, e->flags,
+                                               e->ext);
                        break;
                case IVHD_DEV_EXT_SELECT_RANGE:
                        devid_start = e->devid;
@@ -589,7 +595,7 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
                        for (dev_i = devid_start; dev_i <= devid; ++dev_i) {
                                if (alias)
                                        amd_iommu_alias_table[dev_i] = devid_to;
-                               set_dev_entry_from_acpi(
+                               set_dev_entry_from_acpi(iommu,
                                                amd_iommu_alias_table[dev_i],
                                                flags, ext_flags);
                        }
@@ -1042,20 +1048,10 @@ static int __init parse_amd_iommu_options(char *str)
 
 static int __init parse_amd_iommu_size_options(char *str)
 {
-       for (; *str; ++str) {
-               if (strcmp(str, "32M") == 0)
-                       amd_iommu_aperture_order = 25;
-               if (strcmp(str, "64M") == 0)
-                       amd_iommu_aperture_order = 26;
-               if (strcmp(str, "128M") == 0)
-                       amd_iommu_aperture_order = 27;
-               if (strcmp(str, "256M") == 0)
-                       amd_iommu_aperture_order = 28;
-               if (strcmp(str, "512M") == 0)
-                       amd_iommu_aperture_order = 29;
-               if (strcmp(str, "1G") == 0)
-                       amd_iommu_aperture_order = 30;
-       }
+       unsigned order = PAGE_SHIFT + get_order(memparse(str, &str));
+
+       if ((order > 24) && (order < 31))
+               amd_iommu_aperture_order = order;
 
        return 1;
 }