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>

Conflicts:

	arch/x86/include/asm/irq_remapping.h
	arch/x86/kernel/apic/io_apic.c
	drivers/iommu/Makefile

Change-Id: I3f09baf327e59d94f38801d107268f4e20c1da8e

5 files changed, 26 insertions, 20 deletions

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 85151019dde1..2774ac1086d3 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -30,10 +30,10 @@
 /*
  * If we have Intel graphics, we're not going to have anything other than
  * an Intel IOMMU. So make the correct use of the PCI DMA API contingent
- * on the Intel IOMMU support (CONFIG_DMAR).
+ * on the Intel IOMMU support (CONFIG_INTEL_IOMMU).
  * Only newer chipsets need to bother with this, of course.
  */
-#ifdef CONFIG_DMAR
+#ifdef CONFIG_INTEL_IOMMU
 #define USE_PCI_DMA_API 1
 #else
 #define USE_PCI_DMA_API 0
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 1934bd964484..bdc24005c31b 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 6c75c367a5c9..d9d4526b3a2a 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,8 +1,9 @@
 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
 obj-$(CONFIG_OMAP_IOMMU) += omap-iommu.o
 obj-$(CONFIG_OMAP_IOVMM) += omap-iovmm.o
 obj-$(CONFIG_OMAP_IOMMU_DEBUG) += omap-iommu-debug.o
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index bd43653ac839..be1953c239b0 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -398,11 +398,11 @@ 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;
@@ -2157,7 +2157,7 @@ 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;
@@ -2180,7 +2180,7 @@ 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);
 
@@ -2491,7 +2491,7 @@ 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
 
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index cec462927317..37d35c938b5a 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2788,7 +2788,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_
 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
 #endif /*CONFIG_MMC_RICOH_MMC*/
 
-#if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
+#ifdef CONFIG_DMAR_TABLE
 #define VTUNCERRMSK_REG	0x1ac
 #define VTD_MSK_SPEC_ERRORS	(1 << 31)
 /*