A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-24 21:54:34 -04:00
Code Issues Projects Releases Packages Wiki Activity

IOMMU Updates for Linux v3.14

Browse source 
A few patches have been queued up for this merge window:
 
 	* Improvements for the ARM-SMMU driver
 	  (IOMMU_EXEC support, IOMMU group support)
 	* Updates and fixes for the shmobile IOMMU driver
 	* Various fixes to generic IOMMU code and the
 	  Intel IOMMU driver
 	* Some cleanups in IOMMU drivers (dev_is_pci() usage)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJS6XrCAAoJECvwRC2XARrjgy4P/itemtg2U+603Ldje8WcPo0E
 OCO/0VVSmCTYKUJDZY0hiVwqmhe5gFL3Hm/gGwkS0+UJenFXMmi+aVaPp4pCpgH+
 dL2HD3dIEvi14bisrdxG/8MdR6mIx0qzKtnZLkKSR4LXwucyLHvC/DaCoOytb7Yk
 7s+eEuo0hj0jAkiqSG/zLEtKElTEnoAAkLOjMy46orecJ5q4HusPZekLtWZs2ETe
 x3NS63Unb9g1iSQJWIA7HnQlxWIr2+iynoamHHJRiVFzqRF0W0sGvQY3auG0DSCn
 70WRNE1rKfEkfXMJxosRQ4394YUQdAkt8MBENNcJcC6E1n5PBi0cEZXH6mCnEIlG
 jXzIKUY9fz68ZboaqIxXv4Hb+JLlPXCvPBvQzIQiKRgVxd8nncEjn5I9MHdf+je5
 BmJlzJLJvP4cFvW8Hc8k2Oq101b1kEcSCLARWWvE9/bk9xIUyrqBkR4XjC0vb6qq
 1HbKVdZ7KFKCkBHy9xMpr7CUjKiDiiLeUmqlhyjcK9spicuNIZQnC11HemL6/USP
 oR6Ext9RGhvz+ch656+5+L6f6FURVP8/ywKiJ3RjmvXV5/fCYo3WMitOB2qzlWCy
 SYXAczAOMOdOo+1Dxbghrr+7HzUWPqgfPmntZEPGMZhfuZ6xXr+7pGLjAhHb4vcR
 SZxqkDo1cprqrR9KFAWC
 =YKLk
 -----END PGP SIGNATURE-----

Merge tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU Updates from Joerg Roedel:
 "A few patches have been queued up for this merge window:

   - improvements for the ARM-SMMU driver (IOMMU_EXEC support, IOMMU
     group support)
   - updates and fixes for the shmobile IOMMU driver
   - various fixes to generic IOMMU code and the Intel IOMMU driver
   - some cleanups in IOMMU drivers (dev_is_pci() usage)"

* tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (36 commits)
  iommu/vt-d: Fix signedness bug in alloc_irte()
  iommu/vt-d: free all resources if failed to initialize DMARs
  iommu/vt-d, trivial: clean sparse warnings
  iommu/vt-d: fix wrong return value of dmar_table_init()
  iommu/vt-d: release invalidation queue when destroying IOMMU unit
  iommu/vt-d: fix access after free issue in function free_dmar_iommu()
  iommu/vt-d: keep shared resources when failed to initialize iommu devices
  iommu/vt-d: fix invalid memory access when freeing DMAR irq
  iommu/vt-d, trivial: simplify code with existing macros
  iommu/vt-d, trivial: use defined macro instead of hardcoding
  iommu/vt-d: mark internal functions as static
  iommu/vt-d, trivial: clean up unused code
  iommu/vt-d, trivial: check suitable flag in function detect_intel_iommu()
  iommu/vt-d, trivial: print correct domain id of static identity domain
  iommu/vt-d, trivial: refine support of 64bit guest address
  iommu/vt-d: fix resource leakage on error recovery path in iommu_init_domains()
  iommu/vt-d: fix a race window in allocating domain ID for virtual machines
  iommu/vt-d: fix PCI device reference leakage on error recovery path
  drm/msm: Fix link error with !MSM_IOMMU
  iommu/vt-d: use dedicated bitmap to track remapping entry allocation status
  ...
This commit is contained in:
Linus Torvalds 2014-01-29 20:00:13 -08:00
commit b3a4bcaa5a
17 changed files with 279 additions and 280 deletions
Download patch file Download diff file Expand all files Collapse all files

4
include/linux/dma_remapping.h
View file

@ -27,7 +27,6 @@ struct root_entry;
#ifdef CONFIG_INTEL_IOMMU
extern void free_dmar_iommu(struct intel_iommu *iommu);
extern int iommu_calculate_agaw(struct intel_iommu *iommu);
extern int iommu_calculate_max_sagaw(struct intel_iommu *iommu);
extern int dmar_disabled;
@ -41,9 +40,6 @@ static inline int iommu_calculate_max_sagaw(struct intel_iommu *iommu)
{
return 0;
}
static inline void free_dmar_iommu(struct intel_iommu *iommu)
{
}
#define dmar_disabled (1)
#define intel_iommu_enabled (0)
#endif

13
include/linux/dmar.h
View file

@ -33,6 +33,7 @@ struct acpi_dmar_header;
#define DMAR_X2APIC_OPT_OUT 0x2
struct intel_iommu;
#ifdef CONFIG_DMAR_TABLE
extern struct acpi_table_header *dmar_tbl;
struct dmar_drhd_unit {
@ -52,6 +53,10 @@ extern struct list_head dmar_drhd_units;
#define for_each_drhd_unit(drhd) \
list_for_each_entry(drhd, &dmar_drhd_units, list)
#define for_each_active_drhd_unit(drhd) \
list_for_each_entry(drhd, &dmar_drhd_units, list) \
if (drhd->ignored) {} else
#define for_each_active_iommu(i, drhd) \
list_for_each_entry(drhd, &dmar_drhd_units, list) \
if (i=drhd->iommu, drhd->ignored) {} else
@ -62,13 +67,13 @@ extern struct list_head dmar_drhd_units;
extern int dmar_table_init(void);
extern int dmar_dev_scope_init(void);
extern int dmar_parse_dev_scope(void *start, void *end, int *cnt,
struct pci_dev ***devices, u16 segment);
extern void dmar_free_dev_scope(struct pci_dev ***devices, int *cnt);
/* Intel IOMMU detection */
extern int detect_intel_iommu(void);
extern int enable_drhd_fault_handling(void);
extern int parse_ioapics_under_ir(void);
extern int alloc_iommu(struct dmar_drhd_unit *);
#else
static inline int detect_intel_iommu(void)
{
@ -157,8 +162,6 @@ struct dmar_atsr_unit {
int dmar_parse_rmrr_atsr_dev(void);
extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header);
extern int dmar_parse_one_atsr(struct acpi_dmar_header *header);
extern int dmar_parse_dev_scope(void *start, void *end, int *cnt,
struct pci_dev ***devices, u16 segment);
extern int intel_iommu_init(void);
#else /* !CONFIG_INTEL_IOMMU: */
static inline int intel_iommu_init(void) { return -ENODEV; }

3
include/linux/intel-iommu.h
View file

@ -288,6 +288,7 @@ struct q_inval {
struct ir_table {
struct irte *base;
unsigned long *bitmap;
};
#endif
@ -347,8 +348,6 @@ static inline void __iommu_flush_cache(
extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev);
extern int dmar_find_matched_atsr_unit(struct pci_dev *dev);
extern int alloc_iommu(struct dmar_drhd_unit *drhd);
extern void free_iommu(struct intel_iommu *iommu);
extern int dmar_enable_qi(struct intel_iommu *iommu);
extern void dmar_disable_qi(struct intel_iommu *iommu);
extern int dmar_reenable_qi(struct intel_iommu *iommu);

16
include/linux/iommu.h
View file

@ -24,9 +24,10 @@
#include <linux/types.h>
#include <trace/events/iommu.h>
#define IOMMU_READ (1)
#define IOMMU_WRITE (2)
#define IOMMU_CACHE (4) /* DMA cache coherency */
#define IOMMU_READ (1 << 0)
#define IOMMU_WRITE (1 << 1)
#define IOMMU_CACHE (1 << 2) /* DMA cache coherency */
#define IOMMU_EXEC (1 << 3)
struct iommu_ops;
struct iommu_group;
@ -247,6 +248,11 @@ static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
return NULL;
}
static inline struct iommu_group *iommu_group_get_by_id(int id)
{
return NULL;
}
static inline void iommu_domain_free(struct iommu_domain *domain)
{
}
@ -291,8 +297,8 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_ad
return 0;
}
static inline int domain_has_cap(struct iommu_domain *domain,
unsigned long cap)
static inline int iommu_domain_has_cap(struct iommu_domain *domain,
unsigned long cap)
{
return 0;
}