diff options
Diffstat (limited to 'src/cpu/o3/free_list.cc')
-rw-r--r-- | src/cpu/o3/free_list.cc | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/src/cpu/o3/free_list.cc b/src/cpu/o3/free_list.cc index 6f0b4be1e..ae651398b 100644 --- a/src/cpu/o3/free_list.cc +++ b/src/cpu/o3/free_list.cc @@ -24,13 +24,16 @@ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Kevin Lim */ #include "base/trace.hh" #include "cpu/o3/free_list.hh" -SimpleFreeList::SimpleFreeList(unsigned _numLogicalIntRegs, +SimpleFreeList::SimpleFreeList(unsigned activeThreads, + unsigned _numLogicalIntRegs, unsigned _numPhysicalIntRegs, unsigned _numLogicalFloatRegs, unsigned _numPhysicalFloatRegs) @@ -40,43 +43,30 @@ SimpleFreeList::SimpleFreeList(unsigned _numLogicalIntRegs, numPhysicalFloatRegs(_numPhysicalFloatRegs), numPhysicalRegs(numPhysicalIntRegs + numPhysicalFloatRegs) { - DPRINTF(FreeList, "FreeList: Creating new free list object.\n"); - - // DEBUG stuff. - freeIntRegsScoreboard.resize(numPhysicalIntRegs); - - freeFloatRegsScoreboard.resize(numPhysicalRegs); - - for (PhysRegIndex i = 0; i < numLogicalIntRegs; ++i) { - freeIntRegsScoreboard[i] = 0; - } + DPRINTF(FreeList, "Creating new free list object.\n"); // Put all of the extra physical registers onto the free list. This // means excluding all of the base logical registers. - for (PhysRegIndex i = numLogicalIntRegs; + for (PhysRegIndex i = numLogicalIntRegs * activeThreads; i < numPhysicalIntRegs; ++i) { freeIntRegs.push(i); - - freeIntRegsScoreboard[i] = 1; - } - - for (PhysRegIndex i = 0; i < numPhysicalIntRegs + numLogicalFloatRegs; - ++i) - { - freeFloatRegsScoreboard[i] = 0; } // Put all of the extra physical registers onto the free list. This // means excluding all of the base logical registers. Because the // float registers' indices start where the physical registers end, // some math must be done to determine where the free registers start. - for (PhysRegIndex i = numPhysicalIntRegs + numLogicalFloatRegs; - i < numPhysicalRegs; ++i) + PhysRegIndex i = numPhysicalIntRegs + (numLogicalFloatRegs * activeThreads); + + for ( ; i < numPhysicalRegs; ++i) { freeFloatRegs.push(i); - - freeFloatRegsScoreboard[i] = 1; } } +std::string +SimpleFreeList::name() const +{ + return "cpu.freelist"; +} |