diff options
Diffstat (limited to 'src/gpgpu-sim/dram.cc')
| -rw-r--r-- | src/gpgpu-sim/dram.cc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/gpgpu-sim/dram.cc b/src/gpgpu-sim/dram.cc index 02356b2..ca47c46 100644 --- a/src/gpgpu-sim/dram.cc +++ b/src/gpgpu-sim/dram.cc @@ -31,6 +31,7 @@ #include "dram_sched.h" #include "gpu-misc.h" #include "gpu-sim.h" +#include "hashing.h" #include "l2cache.h" #include "mem_fetch.h" #include "mem_latency_stat.h" @@ -207,8 +208,18 @@ dram_req_t::dram_req_t(class mem_fetch *mf, unsigned banks, } case BITWISE_XORING_BK_INDEX: { // xoring bank bits with lower bits of the page - int lbank = log2(banks); - bk = tlx.bk ^ (tlx.row & ((1 << lbank) - 1)); + bk = bitwise_hash_function(tlx.row, tlx.bk, banks); + assert(bk < banks); + break; + } + case IPOLY_BK_INDEX: { + /*IPOLY for bank indexing function from "Pseudo-randomly interleaved + * memory." Rau, B. R et al. ISCA 1991 + * http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=348DEA37A3E440473B3C075EAABC63B6?doi=10.1.1.12.7149&rep=rep1&type=pdf + */ + // xoring bank bits with lower bits of the page + bk = ipoly_hash_function(tlx.row, tlx.bk, banks); + assert(bk < banks); break; } case CUSTOM_BK_INDEX: |