apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

iommu: Rename the DMAR and INTR_REMAP config options

Browse Source 
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>
This commit is contained in:
Suresh Siddha
2011-08-23 17:05:25 -07:00
committed by Ingo Molnar
parent c39d77ffa2
commit d3f138106b
24 changed files with 60 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iommu/Kconfig
+15 -10
View File
@@ -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
drivers/iommu/Makefile
+3 -2
View File
@@ -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
drivers/iommu/intel-iommu.c
+5 -5
View File
@@ -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