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intel-iommu: trivially inline context entry macros 

Some macros were unused, so I just dropped them:

  context_fault_disable
  context_translation_type
  context_address_root
  context_address_width
  context_domain_id

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Mark McLoughlin 2008-11-21 16:54:46 +00:00 committed by Joerg Roedel
parent 2abd7e167c
commit c07e7d217b
1 changed files with 54 additions and 29 deletions
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83
drivers/pci/intel-iommu.c
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@ -105,28 +105,53 @@ struct context_entry {
u64 lo; u64 lo;
u64 hi; u64 hi;
}; };
#define context_present(c) ((c).lo & 1)
#define context_fault_disable(c) (((c).lo >> 1) & 1)
#define context_translation_type(c) (((c).lo >> 2) & 3)
#define context_address_root(c) ((c).lo & VTD_PAGE_MASK)
#define context_address_width(c) ((c).hi & 7)
#define context_domain_id(c) (((c).hi >> 8) & ((1 << 16) - 1))
#define context_set_present(c) do {(c).lo |= 1;} while (0) static inline bool context_present(struct context_entry *context)
#define context_set_fault_enable(c) \ {
do {(c).lo &= (((u64)-1) << 2) | 1;} while (0) return (context->lo & 1);
#define context_set_translation_type(c, val) \ }
do { \ static inline void context_set_present(struct context_entry *context)
(c).lo &= (((u64)-1) << 4) | 3; \ {
(c).lo |= ((val) & 3) << 2; \ context->lo |= 1;
} while (0) }
static inline void context_set_fault_enable(struct context_entry *context)
{
context->lo &= (((u64)-1) << 2) | 1;
}
#define CONTEXT_TT_MULTI_LEVEL 0 #define CONTEXT_TT_MULTI_LEVEL 0
#define context_set_address_root(c, val) \
do {(c).lo |= (val) & VTD_PAGE_MASK; } while (0) static inline void context_set_translation_type(struct context_entry *context,
#define context_set_address_width(c, val) do {(c).hi |= (val) & 7;} while (0) unsigned long value)
#define context_set_domain_id(c, val) \ {
do {(c).hi |= ((val) & ((1 << 16) - 1)) << 8;} while (0) context->lo &= (((u64)-1) << 4) | 3;
#define context_clear_entry(c) do {(c).lo = 0; (c).hi = 0;} while (0) context->lo |= (value & 3) << 2;
}
static inline void context_set_address_root(struct context_entry *context,
unsigned long value)
{
context->lo |= value & VTD_PAGE_MASK;
}
static inline void context_set_address_width(struct context_entry *context,
unsigned long value)
{
context->hi |= value & 7;
}
static inline void context_set_domain_id(struct context_entry *context,
unsigned long value)
{
context->hi |= (value & ((1 << 16) - 1)) << 8;
}
static inline void context_clear_entry(struct context_entry *context)
{
context->lo = 0;
context->hi = 0;
}
/* /*
* 0: readable * 0: readable
@ -349,7 +374,7 @@ static int device_context_mapped(struct intel_iommu *iommu, u8 bus, u8 devfn)
ret = 0; ret = 0;
goto out; goto out;
} }
ret = context_present(context[devfn]); ret = context_present(&context[devfn]);
out: out:
spin_unlock_irqrestore(&iommu->lock, flags); spin_unlock_irqrestore(&iommu->lock, flags);
return ret; return ret;
@ -365,7 +390,7 @@ static void clear_context_table(struct intel_iommu *iommu, u8 bus, u8 devfn)
root = &iommu->root_entry[bus]; root = &iommu->root_entry[bus];
context = get_context_addr_from_root(root); context = get_context_addr_from_root(root);
if (context) { if (context) {
context_clear_entry(context[devfn]); context_clear_entry(&context[devfn]);
__iommu_flush_cache(iommu, &context[devfn], \ __iommu_flush_cache(iommu, &context[devfn], \
sizeof(*context)); sizeof(*context));
} }
@ -1284,17 +1309,17 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
if (!context) if (!context)
return -ENOMEM; return -ENOMEM;
spin_lock_irqsave(&iommu->lock, flags); spin_lock_irqsave(&iommu->lock, flags);
if (context_present(*context)) { if (context_present(context)) {
spin_unlock_irqrestore(&iommu->lock, flags); spin_unlock_irqrestore(&iommu->lock, flags);
return 0; return 0;
} }
context_set_domain_id(*context, domain->id); context_set_domain_id(context, domain->id);
context_set_address_width(*context, domain->agaw); context_set_address_width(context, domain->agaw);
context_set_address_root(*context, virt_to_phys(domain->pgd)); context_set_address_root(context, virt_to_phys(domain->pgd));
context_set_translation_type(*context, CONTEXT_TT_MULTI_LEVEL); context_set_translation_type(context, CONTEXT_TT_MULTI_LEVEL);
context_set_fault_enable(*context); context_set_fault_enable(context);
context_set_present(*context); context_set_present(context);
__iommu_flush_cache(iommu, context, sizeof(*context)); __iommu_flush_cache(iommu, context, sizeof(*context));
/* it's a non-present to present mapping */ /* it's a non-present to present mapping */