diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/gart.h | 33 | ||||
| -rw-r--r-- | arch/x86/include/asm/iommu.h | 33 | ||||
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/amd_iommu_init.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/aperture_64.c | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/early-quirks.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 1 |
9 files changed, 42 insertions, 36 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ac22bb7719f..2187c608688 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -569,7 +569,7 @@ config AMD_IOMMU # need this always selected by IOMMU for the VIA workaround config SWIOTLB - bool + def_bool y if X86_64 help Support for software bounce buffers used on x86-64 systems which don't have a hardware IOMMU (e.g. the current generation diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h index 74252264433..6cfdafa409d 100644 --- a/arch/x86/include/asm/gart.h +++ b/arch/x86/include/asm/gart.h @@ -29,6 +29,39 @@ extern int fix_aperture; #define AMD64_GARTCACHECTL 0x9c #define AMD64_GARTEN (1<<0) +#ifdef CONFIG_GART_IOMMU +extern int gart_iommu_aperture; +extern int gart_iommu_aperture_allowed; +extern int gart_iommu_aperture_disabled; + +extern void early_gart_iommu_check(void); +extern void gart_iommu_init(void); +extern void gart_iommu_shutdown(void); +extern void __init gart_parse_options(char *); +extern void gart_iommu_hole_init(void); + +#else +#define gart_iommu_aperture 0 +#define gart_iommu_aperture_allowed 0 +#define gart_iommu_aperture_disabled 1 + +static inline void early_gart_iommu_check(void) +{ +} +static inline void gart_iommu_init(void) +{ +} +static inline void gart_iommu_shutdown(void) +{ +} +static inline void gart_parse_options(char *options) +{ +} +static inline void gart_iommu_hole_init(void) +{ +} +#endif + extern int agp_amd64_init(void); static inline void enable_gart_translation(struct pci_dev *dev, u64 addr) diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index 0b500c5b644..295b13193f4 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -12,37 +12,4 @@ extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len); /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) -#ifdef CONFIG_GART_IOMMU -extern int gart_iommu_aperture; -extern int gart_iommu_aperture_allowed; -extern int gart_iommu_aperture_disabled; - -extern void early_gart_iommu_check(void); -extern void gart_iommu_init(void); -extern void gart_iommu_shutdown(void); -extern void __init gart_parse_options(char *); -extern void gart_iommu_hole_init(void); - -#else -#define gart_iommu_aperture 0 -#define gart_iommu_aperture_allowed 0 -#define gart_iommu_aperture_disabled 1 - -static inline void early_gart_iommu_check(void) -{ -} -static inline void gart_iommu_init(void) -{ -} -static inline void gart_iommu_shutdown(void) -{ -} -static inline void gart_parse_options(char *options) -{ -} -static inline void gart_iommu_hole_init(void) -{ -} -#endif - #endif /* _ASM_X86_IOMMU_H */ diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index e4899e0e878..d434a97a4c7 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -24,6 +24,7 @@ #include <linux/iommu-helper.h> #include <asm/proto.h> #include <asm/iommu.h> +#include <asm/gart.h> #include <asm/amd_iommu_types.h> #include <asm/amd_iommu.h> diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 30ae2701b3d..1188b98e27e 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -28,6 +28,7 @@ #include <asm/amd_iommu_types.h> #include <asm/amd_iommu.h> #include <asm/iommu.h> +#include <asm/gart.h> /* * definitions for the ACPI scanning code diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 9a32b37ee2e..676debfc170 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -1,8 +1,9 @@ /* * Firmware replacement code. * - * Work around broken BIOSes that don't set an aperture or only set the - * aperture in the AGP bridge. + * Work around broken BIOSes that don't set an aperture, only set the + * aperture in the AGP bridge, or set too small aperture. + * * If all fails map the aperture over some low memory. This is cheaper than * doing bounce buffering. The memory is lost. This is done at early boot * because only the bootmem allocator can allocate 32+MB. diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 1b894b72c0f..744aa7fc49d 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -17,6 +17,7 @@ #include <asm/io_apic.h> #include <asm/apic.h> #include <asm/iommu.h> +#include <asm/gart.h> static void __init fix_hypertransport_config(int num, int slot, int func) { diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 19262482021..12eeb4bfcde 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -6,6 +6,7 @@ #include <asm/proto.h> #include <asm/dma.h> #include <asm/iommu.h> +#include <asm/gart.h> #include <asm/calgary.h> #include <asm/amd_iommu.h> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 9d5674f7b6c..decb492134c 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -93,6 +93,7 @@ #include <asm/desc.h> #include <asm/dma.h> #include <asm/iommu.h> +#include <asm/gart.h> #include <asm/mmu_context.h> #include <asm/proto.h> |