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Pull vtd-iommu into release branch

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Conflicts:
	arch/ia64/kernel/acpi.c
This commit is contained in:
Tony Luck
2008-10-17 13:52:22 -07:00
parent 22ca532a4d 62fdd7678a
commit fe393164c5
23 changed files with 620 additions and 13 deletions
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2
arch/ia64/include/asm/cacheflush.h
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@@ -34,6 +34,8 @@ do { \
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
extern void flush_icache_range (unsigned long start, unsigned long end);
extern void clflush_cache_range(void *addr, int size);
#define flush_icache_user_range(vma, page, user_addr, len) \
do { \

3
arch/ia64/include/asm/device.h
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@@ -10,6 +10,9 @@ struct dev_archdata {
#ifdef CONFIG_ACPI
void *acpi_handle;
#endif
#ifdef CONFIG_DMAR
void *iommu; /* hook for IOMMU specific extension */
#endif
};
#endif /* _ASM_IA64_DEVICE_H */

50
arch/ia64/include/asm/dma-mapping.h
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@@ -7,6 +7,49 @@
*/
#include <asm/machvec.h>
#include <linux/scatterlist.h>
#include <asm/swiotlb.h>
struct dma_mapping_ops {
int (*mapping_error)(struct device *dev,
dma_addr_t dma_addr);
void* (*alloc_coherent)(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp);
void (*free_coherent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr,
size_t size, int direction);
void (*unmap_single)(struct device *dev, dma_addr_t addr,
size_t size, int direction);
void (*sync_single_for_cpu)(struct device *hwdev,
dma_addr_t dma_handle, size_t size,
int direction);
void (*sync_single_for_device)(struct device *hwdev,
dma_addr_t dma_handle, size_t size,
int direction);
void (*sync_single_range_for_cpu)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size, int direction);
void (*sync_single_range_for_device)(struct device *hwdev,
dma_addr_t dma_handle, unsigned long offset,
size_t size, int direction);
void (*sync_sg_for_cpu)(struct device *hwdev,
struct scatterlist *sg, int nelems,
int direction);
void (*sync_sg_for_device)(struct device *hwdev,
struct scatterlist *sg, int nelems,
int direction);
int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
int nents, int direction);
void (*unmap_sg)(struct device *hwdev,
struct scatterlist *sg, int nents,
int direction);
int (*dma_supported_op)(struct device *hwdev, u64 mask);
int is_phys;
};
extern struct dma_mapping_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
#define dma_alloc_coherent(dev, size, handle, gfp) \
platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA)
@@ -96,4 +139,11 @@ dma_cache_sync (struct device *dev, void *vaddr, size_t size,
#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
#endif /* _ASM_IA64_DMA_MAPPING_H */

16
arch/ia64/include/asm/iommu.h Normal file
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@@ -0,0 +1,16 @@
#ifndef _ASM_IA64_IOMMU_H
#define _ASM_IA64_IOMMU_H 1
#define cpu_has_x2apic 0
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)
extern void pci_iommu_shutdown(void);
extern void no_iommu_init(void);
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern void iommu_dma_init(void);
extern void machvec_init(const char *name);
extern int forbid_dac;
#endif

2
arch/ia64/include/asm/machvec.h
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@@ -120,6 +120,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
# include <asm/machvec_hpsim.h>
# elif defined (CONFIG_IA64_DIG)
# include <asm/machvec_dig.h>
# elif defined(CONFIG_IA64_DIG_VTD)
# include <asm/machvec_dig_vtd.h>
# elif defined (CONFIG_IA64_HP_ZX1)
# include <asm/machvec_hpzx1.h>
# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)

38
arch/ia64/include/asm/machvec_dig_vtd.h Normal file
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@@ -0,0 +1,38 @@
#ifndef _ASM_IA64_MACHVEC_DIG_VTD_h
#define _ASM_IA64_MACHVEC_DIG_VTD_h
extern ia64_mv_setup_t dig_setup;
extern ia64_mv_dma_alloc_coherent vtd_alloc_coherent;
extern ia64_mv_dma_free_coherent vtd_free_coherent;
extern ia64_mv_dma_map_single_attrs vtd_map_single_attrs;
extern ia64_mv_dma_unmap_single_attrs vtd_unmap_single_attrs;
extern ia64_mv_dma_map_sg_attrs vtd_map_sg_attrs;
extern ia64_mv_dma_unmap_sg_attrs vtd_unmap_sg_attrs;
extern ia64_mv_dma_supported iommu_dma_supported;
extern ia64_mv_dma_mapping_error vtd_dma_mapping_error;
extern ia64_mv_dma_init pci_iommu_alloc;
/*
* This stuff has dual use!
*
* For a generic kernel, the macros are used to initialize the
* platform's machvec structure. When compiling a non-generic kernel,
* the macros are used directly.
*/
#define platform_name "dig_vtd"
#define platform_setup dig_setup
#define platform_dma_init pci_iommu_alloc
#define platform_dma_alloc_coherent vtd_alloc_coherent
#define platform_dma_free_coherent vtd_free_coherent
#define platform_dma_map_single_attrs vtd_map_single_attrs
#define platform_dma_unmap_single_attrs vtd_unmap_single_attrs
#define platform_dma_map_sg_attrs vtd_map_sg_attrs
#define platform_dma_unmap_sg_attrs vtd_unmap_sg_attrs
#define platform_dma_sync_single_for_cpu machvec_dma_sync_single
#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg
#define platform_dma_sync_single_for_device machvec_dma_sync_single
#define platform_dma_sync_sg_for_device machvec_dma_sync_sg
#define platform_dma_supported iommu_dma_supported
#define platform_dma_mapping_error vtd_dma_mapping_error
#endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */

1
arch/ia64/include/asm/machvec_init.h
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@@ -1,3 +1,4 @@
#include <asm/iommu.h>
#include <asm/machvec.h>
extern ia64_mv_send_ipi_t ia64_send_ipi;

3
arch/ia64/include/asm/pci.h
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@@ -164,4 +164,7 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
}
#ifdef CONFIG_DMAR
extern void pci_iommu_alloc(void);
#endif
#endif /* _ASM_IA64_PCI_H */

56
arch/ia64/include/asm/swiotlb.h Normal file
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@@ -0,0 +1,56 @@
#ifndef ASM_IA64__SWIOTLB_H
#define ASM_IA64__SWIOTLB_H
#include <linux/dma-mapping.h>
/* SWIOTLB interface */
extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
size_t size, int dir);
extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags);
extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
size_t size, int dir);
extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
dma_addr_t dev_addr,
size_t size, int dir);
extern void swiotlb_sync_single_for_device(struct device *hwdev,
dma_addr_t dev_addr,
size_t size, int dir);
extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
dma_addr_t dev_addr,
unsigned long offset,
size_t size, int dir);
extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
dma_addr_t dev_addr,
unsigned long offset,
size_t size, int dir);
extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
struct scatterlist *sg, int nelems,
int dir);
extern void swiotlb_sync_sg_for_device(struct device *hwdev,
struct scatterlist *sg, int nelems,
int dir);
extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
int nents, int direction);
extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
int nents, int direction);
extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle);
extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
extern void swiotlb_init(void);
extern int swiotlb_force;
#ifdef CONFIG_SWIOTLB
extern int swiotlb;
extern void pci_swiotlb_init(void);
#else
#define swiotlb 0
static inline void pci_swiotlb_init(void)
{
}
#endif
#endif /* ASM_IA64__SWIOTLB_H */