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Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, ioapic: Consolidate the explicit EOI code
  x86, ioapic: Restore the mask bit correctly in eoi_ioapic_irq()
  x86, kdump, ioapic: Reset remote-IRR in clear_IO_APIC
  iommu: Rename the DMAR and INTR_REMAP config options
  x86, ioapic: Define irq_remap_modify_chip_defaults()
  x86, msi, intr-remap: Use the ioapic set affinity routine
  iommu: Cleanup ifdefs in detect_intel_iommu()
  iommu: No need to set dmar_disabled in check_zero_address()
  iommu: Move IOMMU specific code to intel-iommu.c
  intr_remap: Call dmar_dev_scope_init() explicitly
  x86, x2apic: Enable the bios request for x2apic optout
This commit is contained in:
Linus Torvalds
2011-10-26 16:11:53 +02:00
parent 37d96c28ec c020570138
commit 982653009b
27 changed files with 474 additions and 405 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/dma_remapping.h
+7 -3
View File
@@ -25,11 +25,12 @@ struct intel_iommu;
struct dmar_domain;
struct root_entry;
extern void free_dmar_iommu(struct intel_iommu *iommu);
#ifdef CONFIG_DMAR
#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;
#else
static inline int iommu_calculate_agaw(struct intel_iommu *iommu)
{
@@ -39,8 +40,11 @@ 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)
#endif
extern int dmar_disabled;
#endif
include/linux/dmar.h
+35 -8
View File
@@ -26,8 +26,13 @@
#include <linux/msi.h>
#include <linux/irqreturn.h>
/* DMAR Flags */
#define DMAR_INTR_REMAP 0x1
#define DMAR_X2APIC_OPT_OUT 0x2
struct intel_iommu;
#if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
#ifdef CONFIG_DMAR_TABLE
extern struct acpi_table_header *dmar_tbl;
struct dmar_drhd_unit {
struct list_head list; /* list of drhd units */
struct acpi_dmar_header *hdr; /* ACPI header */
@@ -76,7 +81,7 @@ static inline int enable_drhd_fault_handling(void)
{
return -1;
}
#endif /* !CONFIG_DMAR && !CONFIG_INTR_REMAP */
#endif /* !CONFIG_DMAR_TABLE */
struct irte {
union {
@@ -107,10 +112,10 @@ struct irte {
};
};
#ifdef CONFIG_INTR_REMAP
#ifdef CONFIG_IRQ_REMAP
extern int intr_remapping_enabled;
extern int intr_remapping_supported(void);
extern int enable_intr_remapping(int);
extern int enable_intr_remapping(void);
extern void disable_intr_remapping(void);
extern int reenable_intr_remapping(int);
@@ -177,7 +182,7 @@ static inline int set_msi_sid(struct irte *irte, struct pci_dev *dev)
#define intr_remapping_enabled (0)
static inline int enable_intr_remapping(int eim)
static inline int enable_intr_remapping(void)
{
return -1;
}
@@ -192,6 +197,11 @@ static inline int reenable_intr_remapping(int eim)
}
#endif
enum {
IRQ_REMAP_XAPIC_MODE,
IRQ_REMAP_X2APIC_MODE,
};
/* Can't use the common MSI interrupt functions
* since DMAR is not a pci device
*/
@@ -204,7 +214,7 @@ extern int dmar_set_interrupt(struct intel_iommu *iommu);
extern irqreturn_t dmar_fault(int irq, void *dev_id);
extern int arch_setup_dmar_msi(unsigned int irq);
#ifdef CONFIG_DMAR
#ifdef CONFIG_INTEL_IOMMU
extern int iommu_detected, no_iommu;
extern struct list_head dmar_rmrr_units;
struct dmar_rmrr_unit {
@@ -227,9 +237,26 @@ struct dmar_atsr_unit {
u8 include_all:1; /* include all ports */
};
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_DMAR: */
#else /* !CONFIG_INTEL_IOMMU: */
static inline int intel_iommu_init(void) { return -ENODEV; }
#endif /* CONFIG_DMAR */
static inline int dmar_parse_one_rmrr(struct acpi_dmar_header *header)
{
return 0;
}
static inline int dmar_parse_one_atsr(struct acpi_dmar_header *header)
{
return 0;
}
static inline int dmar_parse_rmrr_atsr_dev(void)
{
return 0;
}
#endif /* CONFIG_INTEL_IOMMU */
#endif /* __DMAR_H__ */
include/linux/intel-iommu.h
+3 -3
View File
@@ -279,7 +279,7 @@ struct q_inval {
int free_cnt;
};
#ifdef CONFIG_INTR_REMAP
#ifdef CONFIG_IRQ_REMAP
/* 1MB - maximum possible interrupt remapping table size */
#define INTR_REMAP_PAGE_ORDER 8
#define INTR_REMAP_TABLE_REG_SIZE 0xf
@@ -318,7 +318,7 @@ struct intel_iommu {
unsigned int irq;
unsigned char name[13]; /* Device Name */
#ifdef CONFIG_DMAR
#ifdef CONFIG_INTEL_IOMMU
unsigned long *domain_ids; /* bitmap of domains */
struct dmar_domain **domains; /* ptr to domains */
spinlock_t lock; /* protect context, domain ids */
@@ -329,7 +329,7 @@ struct intel_iommu {
struct q_inval *qi; /* Queued invalidation info */
u32 *iommu_state; /* Store iommu states between suspend and resume.*/
#ifdef CONFIG_INTR_REMAP
#ifdef CONFIG_IRQ_REMAP
struct ir_table *ir_table; /* Interrupt remapping info */
#endif
int node;