diff options
author | bd <bdunahu@operationnull.com> | 2025-03-11 16:30:40 -0400 |
---|---|---|
committer | bd <bdunahu@operationnull.com> | 2025-03-11 16:30:40 -0400 |
commit | aed0a13d39bfe0b189ea43117aeb2e8b9188c3d9 (patch) | |
tree | 27633137381adfe656a9a1175d03cb164983549f | |
parent | 7eea92651e3f7c1a60726b3646dc96fe6118c1d7 (diff) |
remove operation.h and branch determined by read/write in cache load
-rw-r--r-- | inc/cache.h | 3 | ||||
-rw-r--r-- | inc/operation.h | 9 | ||||
-rw-r--r-- | src/storage/cache.cc | 26 |
3 files changed, 16 insertions, 22 deletions
diff --git a/inc/cache.h b/inc/cache.h index 7a1a380..20a40c2 100644 --- a/inc/cache.h +++ b/inc/cache.h @@ -1,7 +1,6 @@ #ifndef CACHE_H #define CACHE_H #include "definitions.h" -#include "operation.h" #include "storage.h" #include <array> #include <ostream> @@ -43,7 +42,7 @@ class Cache : public Storage * cache level to true, and the victim line is chosen/written back. * @param the address that must be present in cache. */ - void fetch_resource(Operation op, int address); + void fetch_resource(int address); /** * An array of metadata about elements in `data`. * If the first value of an element is negative, the corresponding diff --git a/inc/operation.h b/inc/operation.h deleted file mode 100644 index a35344e..0000000 --- a/inc/operation.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef OPERATION_H -#define OPERATION_H - -enum Operation { - READ, - WRITE -}; - -#endif /* OPERATION_H_INCLUDED */
\ No newline at end of file diff --git a/src/storage/cache.cc b/src/storage/cache.cc index 1224aa9..5e071ac 100644 --- a/src/storage/cache.cc +++ b/src/storage/cache.cc @@ -34,7 +34,7 @@ Response Cache::write(Accessor accessor, signed int data, int address) this->requester = accessor; if (this->requester == accessor) { - fetch_resource(WRITE,address); + fetch_resource(address); if (this->is_waiting) r = BLOCKED; else if (this->wait_time == 0) { @@ -49,7 +49,8 @@ Response Cache::write(Accessor accessor, signed int data, int address) return r; } -Response Cache::write_line(Accessor accessor, std::array<signed int, LINE_SIZE> data_line, int address) +Response Cache::write_line( + Accessor accessor, std::array<signed int, LINE_SIZE> data_line, int address) { Response r = WAIT; @@ -58,7 +59,7 @@ Response Cache::write_line(Accessor accessor, std::array<signed int, LINE_SIZE> this->requester = accessor; if (this->requester == accessor) { - fetch_resource(WRITE,address); + fetch_resource(address); if (this->is_waiting) r = BLOCKED; else if (this->wait_time == 0) { @@ -74,13 +75,16 @@ Response Cache::write_line(Accessor accessor, std::array<signed int, LINE_SIZE> } // TODO: tests for multi level cache -Response Cache::read(Accessor accessor, int address, std::array<signed int, LINE_SIZE> &data_line) +Response Cache::read( + Accessor accessor, + int address, + std::array<signed int, LINE_SIZE> &data_line) { Response r = WAIT; if (this->requester == IDLE) this->requester = accessor; if (this->requester == accessor) { - fetch_resource(READ,address); + fetch_resource(address); if (this->is_waiting) r = BLOCKED; else if (this->wait_time == 0) { @@ -99,7 +103,7 @@ Response Cache::read_word(Accessor accessor, int address, signed int &data) if (this->requester == IDLE) this->requester = accessor; if (this->requester == accessor) { - fetch_resource(READ,address); + fetch_resource(address); if (this->is_waiting) r = BLOCKED; else if (this->wait_time == 0) { @@ -112,7 +116,7 @@ Response Cache::read_word(Accessor accessor, int address, signed int &data) return r; } -void Cache::fetch_resource(Operation op, int expected) +void Cache::fetch_resource(int expected) { Response r = OK; int tag, index, offset; @@ -128,12 +132,12 @@ void Cache::fetch_resource(Operation op, int expected) if (meta->at(1) >= 0) { // occupant is dirty // writing line to DRam in case of dirty cache eviction - r = this->lower->write_line(L1CACHE, actual, ((index << LINE_SPEC) + (meta->at(0) << (L1_CACHE_SPEC + LINE_SPEC)))); + r = this->lower->write_line( + L1CACHE, actual, + ((index << LINE_SPEC) + + (meta->at(0) << (L1_CACHE_SPEC + LINE_SPEC)))); if (r == OK) { meta->at(1) = -1; - if(op == READ){ - r = WAIT; //if operation is read, need to wait until cache is loaded with right value from memory address, if operation is write, then this is not necessary - } } } else { r = this->lower->read(L1CACHE, expected, actual); |