diff options
Diffstat (limited to 'src/mem/dram_ctrl.hh')
| -rw-r--r-- | src/mem/dram_ctrl.hh | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/mem/dram_ctrl.hh b/src/mem/dram_ctrl.hh index 57731f5e0..1ea04fa56 100644 --- a/src/mem/dram_ctrl.hh +++ b/src/mem/dram_ctrl.hh @@ -574,24 +574,22 @@ class DRAMCtrl : public AbstractMemory * controller is switching command type. * * @param queue Queued requests to consider - * @param switched_cmd_type Command type is changing + * @param extra_col_delay Any extra delay due to a read/write switch * @return true if a packet is scheduled to a rank which is available else * false */ - bool chooseNext(std::deque<DRAMPacket*>& queue, bool switched_cmd_type); + bool chooseNext(std::deque<DRAMPacket*>& queue, Tick extra_col_delay); /** * For FR-FCFS policy reorder the read/write queue depending on row buffer - * hits and earliest banks available in DRAM - * Prioritizes accesses to the same rank as previous burst unless - * controller is switching command type. + * hits and earliest bursts available in DRAM * * @param queue Queued requests to consider - * @param switched_cmd_type Command type is changing + * @param extra_col_delay Any extra delay due to a read/write switch * @return true if a packet is scheduled to a rank which is available else * false */ - bool reorderQueue(std::deque<DRAMPacket*>& queue, bool switched_cmd_type); + bool reorderQueue(std::deque<DRAMPacket*>& queue, Tick extra_col_delay); /** * Find which are the earliest banks ready to issue an activate @@ -599,11 +597,12 @@ class DRAMCtrl : public AbstractMemory * Also checks if the bank is already prepped. * * @param queue Queued requests to consider - * @param switched_cmd_type Command type is changing + * @param time of seamless burst command * @return One-hot encoded mask of bank indices + * @return boolean indicating burst can issue seamlessly, with no gaps */ - uint64_t minBankPrep(const std::deque<DRAMPacket*>& queue, - bool switched_cmd_type) const; + std::pair<uint64_t, bool> minBankPrep(const std::deque<DRAMPacket*>& queue, + Tick min_col_at) const; /** * Keep track of when row activations happen, in order to enforce |