#ifndef __ARCH_SPARC_PAGETABLE_HH__
#define __ARCH_SPARC_PAGETABLE_HH__
+#include <cassert>
+
#include "arch/sparc/isa_traits.hh"
+#include "base/bitfield.hh"
#include "base/misc.hh"
#include "config/full_system.hh"
class Checkpoint;
-namespace SparcISA
-{
+namespace SparcISA {
+
struct VAddr
{
VAddr(Addr a) { panic("not implemented yet."); }
};
+class TteTag
+{
+ private:
+ uint64_t entry;
+ bool populated;
+
+ public:
+ TteTag() : entry(0), populated(false) {}
+ TteTag(uint64_t e) : entry(e), populated(true) {}
+
+ const TteTag &
+ operator=(uint64_t e)
+ {
+ populated = true;
+ entry = e;
+ return *this;
+ }
+
+ bool valid() const {assert(populated); return !bits(entry,62,62); }
+ Addr va() const {assert(populated); return bits(entry,41,0); }
+};
+
+
class PageTableEntry
{
public:
uint64_t entry4u;
bool populated;
-
public:
- PageTableEntry() : entry(0), type(invalid), populated(false) {}
+ PageTableEntry()
+ : entry(0), type(invalid), populated(false)
+ {}
PageTableEntry(uint64_t e, EntryType t = sun4u)
: entry(e), type(t), populated(true)
-
{
populate(entry, type);
}
if (type == sun4u)
entry4u = entry;
else {
- uint64_t entry4u = 0;
- entry4u |= entry & ULL(0x8000000000000000); //valid
- entry4u |= (entry & 0x3) << 61; //size[1:0]
- entry4u |= (entry & ULL(0x4000000000000000)) >> 2; //nfo
- entry4u |= (entry & 0x1000) << 47; //ie
- //entry4u |= (entry & 0x3F00000000000000) >> 7; //soft2
- entry4u |= (entry & 0x4) << 48; //size[2]
- //diag?
- entry4u |= (entry & ULL(0x0000FFFFFFFFE000)); //paddr
- entry4u |= (entry & 0x400) >> 5; //cp
- entry4u |= (entry & 0x200) >> 5; //cv
- entry4u |= (entry & 0x800) >> 8; //e
- entry4u |= (entry & 0x100) >> 6; //p
- entry4u |= (entry & 0x40) >> 5; //w
+ entry4u = 0;
+ entry4u |= mbits(entry,63,63); //valid
+ entry4u |= bits(entry,1,0) << 61; //size[1:0]
+ entry4u |= bits(entry,62,62) << 60; //nfo
+ entry4u |= bits(entry,12,12) << 59; //ie
+ entry4u |= bits(entry,2,2) << 48; //size[2]
+ entry4u |= mbits(entry,39,13); //paddr
+ entry4u |= bits(entry,61,61) << 6;; // locked
+ entry4u |= bits(entry,10,10) << 5; //cp
+ entry4u |= bits(entry,9,9) << 4; //cv
+ entry4u |= bits(entry,11,11) << 3; //e
+ entry4u |= bits(entry,8,8) << 2; //p
+ entry4u |= bits(entry,6,6) << 1; //w
}
}
- void clear()
+ void
+ clear()
{
populated = false;
}
static int pageSizes[6];
-
uint64_t operator()() const { assert(populated); return entry4u; }
- const PageTableEntry &operator=(uint64_t e) { populated = true;
- entry4u = e; return *this; }
-
- const PageTableEntry &operator=(const PageTableEntry &e)
- { populated = true; entry4u = e.entry4u; return *this; }
-
- bool valid() const { return entry4u & ULL(0x8000000000000000) && populated; }
- uint8_t _size() const { assert(populated);
- return ((entry4u & 0x6) >> 61) |
- ((entry4u & ULL(0x000080000000000)) >> 46); }
- Addr size() const { return pageSizes[_size()]; }
- bool ie() const { return entry4u >> 59 & 0x1; }
- Addr pfn() const { assert(populated);
- return entry4u >> 13 & ULL(0xFFFFFFFFFF); }
- Addr paddr() const { assert(populated);
- return entry4u & ULL(0x0000FFFFFFFFE000); }
- bool locked() const { assert(populated);
- return entry4u & 0x40; }
- bool cv() const { assert(populated);
- return entry4u & 0x10; }
- bool cp() const { assert(populated);
- return entry4u & 0x20; }
- bool priv() const { assert(populated);
- return entry4u & 0x4; }
- bool writable() const { assert(populated);
- return entry4u & 0x2; }
- bool nofault() const { assert(populated);
- return entry4u & ULL(0x1000000000000000); }
- bool sideffect() const { assert(populated);
- return entry4u & 0x8; }
+ const PageTableEntry &
+ operator=(uint64_t e)
+ {
+ populated = true;
+ entry4u = e;
+ return *this;
+ }
+
+ const PageTableEntry &
+ operator=(const PageTableEntry &e)
+ {
+ populated = true;
+ entry4u = e.entry4u;
+ type = e.type;
+ return *this;
+ }
+
+ bool valid() const { return bits(entry4u,63,63) && populated; }
+
+ uint8_t
+ _size() const
+ {
+ assert(populated);
+ return bits(entry4u, 62,61) | bits(entry4u, 48,48) << 2;
+ }
+
+ Addr size() const { assert(_size() < 6); return pageSizes[_size()]; }
+ Addr sizeMask() const { return size() - 1; }
+ bool ie() const { return bits(entry4u, 59,59); }
+ Addr pfn() const { assert(populated); return bits(entry4u,39,13); }
+ Addr paddr() const { assert(populated); return mbits(entry4u, 39,13);}
+ bool locked() const { assert(populated); return bits(entry4u,6,6); }
+ bool cv() const { assert(populated); return bits(entry4u,4,4); }
+ bool cp() const { assert(populated); return bits(entry4u,5,5); }
+ bool priv() const { assert(populated); return bits(entry4u,2,2); }
+ bool writable() const { assert(populated); return bits(entry4u,1,1); }
+ bool nofault() const { assert(populated); return bits(entry4u,60,60); }
+ bool sideffect() const { assert(populated); return bits(entry4u,3,3); }
+ Addr paddrMask() const { assert(populated); return paddr() & ~sizeMask(); }
+
+ Addr
+ translate(Addr vaddr) const
+ {
+ assert(populated);
+ Addr mask = sizeMask();
+ return (paddr() & ~mask) | (vaddr & mask);
+ }
};
-struct TlbRange {
+struct TlbRange
+{
Addr va;
Addr size;
int contextId;
int partitionId;
bool real;
- inline bool operator<(const TlbRange &r2) const
+ inline bool
+ operator<(const TlbRange &r2) const
{
if (real && !r2.real)
return true;
return true;
return false;
}
- inline bool operator==(const TlbRange &r2) const
+
+ inline bool
+ operator==(const TlbRange &r2) const
{
return va == r2.va &&
size == r2.size &&
};
-struct TlbEntry {
+struct TlbEntry
+{
+ TlbEntry()
+ {}
+
+ TlbEntry(Addr asn, Addr vaddr, Addr paddr)
+ {
+ uint64_t entry = 0;
+ entry |= 1ULL << 1; // Writable
+ entry |= 0ULL << 2; // Available in nonpriveleged mode
+ entry |= 0ULL << 3; // No side effects
+ entry |= 1ULL << 4; // Virtually cachable
+ entry |= 1ULL << 5; // Physically cachable
+ entry |= 0ULL << 6; // Not locked
+ entry |= mbits(paddr, 39, 13); // Physical address
+ entry |= 0ULL << 48; // size = 8k
+ entry |= 0uLL << 59; // Endianness not inverted
+ entry |= 0ULL << 60; // Not no fault only
+ entry |= 0ULL << 61; // size = 8k
+ entry |= 1ULL << 63; // valid
+ pte = PageTableEntry(entry);
+
+ range.va = vaddr;
+ range.size = 8*(1<<10);
+ range.contextId = asn;
+ range.partitionId = 0;
+ range.real = false;
+
+ valid = true;
+ }
+
TlbRange range;
PageTableEntry pte;
bool used;
bool valid;
+ Addr pageStart()
+ {
+ return pte.paddr();
+ }
+
+ void
+ updateVaddr(Addr new_vaddr)
+ {
+ range.va = new_vaddr;
+ }
+
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string §ion);
-
};
-
-}; // namespace SparcISA
+} // namespace SparcISA
#endif // __ARCH_SPARC_PAGE_TABLE_HH__
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