x86, GART/AMD-VI: Make AMD GART and IOMMU use IOMMU_INIT_* macros.

We utilize the IOMMU_INIT macros to create this dependency:

               [null]
                 |
       [pci_xen_swiotlb_detect]
                 |
       [pci_swiotlb_detect_override]
                 |
       [pci_swiotlb_detect_4gb]
                 |
         +-------+--------+
        /                  \
[detect_calgary]    [gart_iommu_hole_init]
                            |
                    [amd_iommu_detect]

Meaning that 'amd_iommu_detect' will be called after
'gart_iommu_hole_init'.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
LKML-Reference: <1282845485-8991-9-git-send-email-konrad.wilk@oracle.com>
CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
CC: Joerg Roedel <joerg.roedel@amd.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 0f7f130caa6..de9734b100a 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -41,6 +41,7 @@
 #include <asm/dma.h>
 #include <asm/k8.h>
 #include <asm/x86_init.h>
+#include <asm/iommu_table.h>
 
 static unsigned long iommu_bus_base;    /* GART remapping area (physical) */
 static unsigned long iommu_size;        /* size of remapping area bytes */
@@ -896,3 +897,4 @@ void __init gart_parse_options(char *p)
                 }
         }
 }
+IOMMU_INIT_POST(gart_iommu_hole_init);