iommu: Rename the DMAR and INTR_REMAP config options

Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent
with the other IOMMU options.

Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the
irq subsystem name.

And define the CONFIG_DMAR_TABLE for the common ACPI DMAR
routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 23 insertions, 17 deletions

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index b57b3fa492f3..7d7eaa15e773 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -59,10 +59,14 @@ config AMD_IOMMU_STATS
           If unsure, say N.
 
 # Intel IOMMU support
-config DMAR
-        bool "Support for DMA Remapping Devices"
+config DMAR_TABLE
+        bool
+
+config INTEL_IOMMU
+        bool "Support for Intel IOMMU using DMA Remapping Devices"
         depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC)
         select IOMMU_API
+        select DMAR_TABLE
         help
           DMA remapping (DMAR) devices support enables independent address
           translations for Direct Memory Access (DMA) from devices.
@@ -70,18 +74,18 @@ config DMAR
           and include PCI device scope covered by these DMA
           remapping devices.
 
-config DMAR_DEFAULT_ON
+config INTEL_IOMMU_DEFAULT_ON
         def_bool y
-        prompt "Enable DMA Remapping Devices by default"
-        depends on DMAR
+        prompt "Enable Intel DMA Remapping Devices by default"
+        depends on INTEL_IOMMU
         help
           Selecting this option will enable a DMAR device at boot time if
           one is found. If this option is not selected, DMAR support can
           be enabled by passing intel_iommu=on to the kernel.
 
-config DMAR_BROKEN_GFX_WA
+config INTEL_IOMMU_BROKEN_GFX_WA
         bool "Workaround broken graphics drivers (going away soon)"
-        depends on DMAR && BROKEN && X86
+        depends on INTEL_IOMMU && BROKEN && X86
         ---help---
           Current Graphics drivers tend to use physical address
           for DMA and avoid using DMA APIs. Setting this config
@@ -90,18 +94,19 @@ config DMAR_BROKEN_GFX_WA
           to use physical addresses for DMA, at least until this
           option is removed in the 2.6.32 kernel.
 
-config DMAR_FLOPPY_WA
+config INTEL_IOMMU_FLOPPY_WA
         def_bool y
-        depends on DMAR && X86
+        depends on INTEL_IOMMU && X86
         ---help---
           Floppy disk drivers are known to bypass DMA API calls
           thereby failing to work when IOMMU is enabled. This
           workaround will setup a 1:1 mapping for the first
           16MiB to make floppy (an ISA device) work.
 
-config INTR_REMAP
+config IRQ_REMAP
         bool "Support for Interrupt Remapping (EXPERIMENTAL)"
         depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+        select DMAR_TABLE
         ---help---
           Supports Interrupt remapping for IO-APIC and MSI devices.
           To use x2apic mode in the CPU's which support x2APIC enhancements or
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index 4d4d77df7cac..6394994a2b9d 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_IOMMU_API) += iommu.o
 obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o
 obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o
-obj-$(CONFIG_DMAR) += dmar.o iova.o intel-iommu.o
-obj-$(CONFIG_INTR_REMAP) += dmar.o intr_remapping.o
+obj-$(CONFIG_DMAR_TABLE) += dmar.o
+obj-$(CONFIG_INTEL_IOMMU) += iova.o intel-iommu.o
+obj-$(CONFIG_IRQ_REMAP) += intr_remapping.o
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index e8eb4c5302b0..4e249edd2290 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -393,11 +393,11 @@ static long list_size;
 
 static void domain_remove_dev_info(struct dmar_domain *domain);
 
-#ifdef CONFIG_DMAR_DEFAULT_ON
+#ifdef CONFIG_INTEL_IOMMU_DEFAULT_ON
 int dmar_disabled = 0;
 #else
 int dmar_disabled = 1;
-#endif /*CONFIG_DMAR_DEFAULT_ON*/
+#endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/
 
 static int dmar_map_gfx = 1;
 static int dmar_forcedac;
@@ -2150,7 +2150,7 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr,
                 rmrr->end_address);
 }
 
-#ifdef CONFIG_DMAR_FLOPPY_WA
+#ifdef CONFIG_INTEL_IOMMU_FLOPPY_WA
 static inline void iommu_prepare_isa(void)
 {
         struct pci_dev *pdev;
@@ -2173,7 +2173,7 @@ static inline void iommu_prepare_isa(void)
 {
         return;
 }
-#endif /* !CONFIG_DMAR_FLPY_WA */
+#endif /* !CONFIG_INTEL_IOMMU_FLPY_WA */
 
 static int md_domain_init(struct dmar_domain *domain, int guest_width);
 
@@ -2484,7 +2484,7 @@ static int __init init_dmars(void)
         if (iommu_pass_through)
                 iommu_identity_mapping |= IDENTMAP_ALL;
 
-#ifdef CONFIG_DMAR_BROKEN_GFX_WA
+#ifdef CONFIG_INTEL_IOMMU_BROKEN_GFX_WA
         iommu_identity_mapping |= IDENTMAP_GFX;
 #endif