#include <string>
-#include "arch/alpha/ev5.hh"
-#include "arch/alpha/vtophys.hh"
+#include "arch/sparc/vtophys.hh"
#include "base/chunk_generator.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "mem/vport.hh"
using namespace std;
-using namespace AlphaISA;
-AlphaISA::PageTableEntry
-AlphaISA::kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, AlphaISA::VAddr vaddr)
+namespace SparcISA
{
- Addr level1_pte = ptbr + vaddr.level1();
- AlphaISA::PageTableEntry level1 = mem->read<uint64_t>(level1_pte);
- if (!level1.valid()) {
- DPRINTF(VtoPhys, "level 1 PTE not valid, va = %#\n", vaddr);
- return 0;
+ PageTableEntry kernel_pte_lookup(FunctionalPort *mem,
+ Addr ptbr, VAddr vaddr)
+ {
+ PageTableEntry pte(4);
+ return pte;
}
- Addr level2_pte = level1.paddr() + vaddr.level2();
- AlphaISA::PageTableEntry level2 = mem->read<uint64_t>(level2_pte);
- if (!level2.valid()) {
- DPRINTF(VtoPhys, "level 2 PTE not valid, va = %#x\n", vaddr);
- return 0;
+ Addr vtophys(Addr vaddr)
+ {
+ return vaddr;
}
- Addr level3_pte = level2.paddr() + vaddr.level3();
- AlphaISA::PageTableEntry level3 = mem->read<uint64_t>(level3_pte);
- if (!level3.valid()) {
- DPRINTF(VtoPhys, "level 3 PTE not valid, va = %#x\n", vaddr);
- return 0;
+ Addr vtophys(ThreadContext *tc, Addr addr)
+ {
+ return addr;
}
- return level3;
-}
-Addr
-AlphaISA::vtophys(Addr vaddr)
-{
- Addr paddr = 0;
- if (AlphaISA::IsUSeg(vaddr))
- DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr);
- else if (AlphaISA::IsK0Seg(vaddr))
- paddr = AlphaISA::K0Seg2Phys(vaddr);
- else
- panic("vtophys: ptbr is not set on virtual lookup");
- DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
-
- return paddr;
-}
-
-Addr
-AlphaISA::vtophys(ThreadContext *tc, Addr addr)
-{
- AlphaISA::VAddr vaddr = addr;
- Addr ptbr = tc->readMiscReg(AlphaISA::IPR_PALtemp20);
- Addr paddr = 0;
- //@todo Andrew couldn't remember why he commented some of this code
- //so I put it back in. Perhaps something to do with gdb debugging?
- if (AlphaISA::PcPAL(vaddr) && (vaddr < EV5::PalMax)) {
- paddr = vaddr & ~ULL(1);
- } else {
- if (AlphaISA::IsK0Seg(vaddr)) {
- paddr = AlphaISA::K0Seg2Phys(vaddr);
- } else if (!ptbr) {
- paddr = vaddr;
- } else {
- AlphaISA::PageTableEntry pte =
- kernel_pte_lookup(tc->getPhysPort(), ptbr, vaddr);
- if (pte.valid())
- paddr = pte.paddr() | vaddr.offset();
- }
+ void CopyOut(ThreadContext *tc, void *dest, Addr src, size_t cplen)
+ {
}
+ void CopyIn(ThreadContext *tc, Addr dest, void *source, size_t cplen)
+ {
+ }
- DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
-
- return paddr;
-}
-
-
-void
-AlphaISA::CopyOut(ThreadContext *tc, void *dest, Addr src, size_t cplen)
-{
- uint8_t *dst = (uint8_t *)dest;
- VirtualPort *vp = tc->getVirtPort(tc);
-
- vp->readBlob(src, dst, cplen);
-
- tc->delVirtPort(vp);
-
-}
-
-void
-AlphaISA::CopyIn(ThreadContext *tc, Addr dest, void *source, size_t cplen)
-{
- uint8_t *src = (uint8_t *)source;
- VirtualPort *vp = tc->getVirtPort(tc);
-
- vp->writeBlob(dest, src, cplen);
-
- tc->delVirtPort(vp);
-}
-
-void
-AlphaISA::CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen)
-{
- int len = 0;
- VirtualPort *vp = tc->getVirtPort(tc);
-
- do {
- vp->readBlob(vaddr++, (uint8_t*)dst++, 1);
- len++;
- } while (len < maxlen && dst[len] != 0 );
-
- tc->delVirtPort(vp);
- dst[len] = 0;
-}
+ void CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen)
+ {
+ }
-void
-AlphaISA::CopyStringIn(ThreadContext *tc, char *src, Addr vaddr)
-{
- VirtualPort *vp = tc->getVirtPort(tc);
- for (ChunkGenerator gen(vaddr, strlen(src), AlphaISA::PageBytes); !gen.done();
- gen.next())
+ void CopyStringIn(ThreadContext *tc, char *src, Addr vaddr)
{
- vp->writeBlob(gen.addr(), (uint8_t*)src, gen.size());
- src += gen.size();
}
- tc->delVirtPort(vp);
}