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Diffstat (limited to 'src/gpgpu-sim/gpu-cache.h')
-rw-r--r--src/gpgpu-sim/gpu-cache.h58
1 files changed, 38 insertions, 20 deletions
diff --git a/src/gpgpu-sim/gpu-cache.h b/src/gpgpu-sim/gpu-cache.h
index 4910ca2..dd56d9f 100644
--- a/src/gpgpu-sim/gpu-cache.h
+++ b/src/gpgpu-sim/gpu-cache.h
@@ -131,19 +131,21 @@ public:
m_valid = false;
m_disabled = false;
m_config_string = NULL; // set by option parser
+ m_config_stringPrefL1 = NULL;
+ m_config_stringPrefShared = NULL;
}
- void init()
+ void init(char * config)
{
- assert( m_config_string );
+ assert( config );
char rp, wp, ap, mshr_type, wap;
- int ntok = sscanf(m_config_string,"%u:%u:%u,%c:%c:%c:%c,%c:%u:%u,%u:%u",
+ int ntok = sscanf(config,"%u:%u:%u,%c:%c:%c:%c,%c:%u:%u,%u:%u",
&m_nset, &m_line_sz, &m_assoc, &rp, &wp, &ap, &wap,
&mshr_type, &m_mshr_entries,&m_mshr_max_merge,
&m_miss_queue_size,&m_result_fifo_entries);
- if ( ntok < 10 ) {
- if ( !strcmp(m_config_string,"none") ) {
+ if ( ntok < 11 ) {
+ if ( !strcmp(config,"none") ) {
m_disabled = true;
return;
}
@@ -235,6 +237,8 @@ public:
}
char *m_config_string;
+ char *m_config_stringPrefL1;
+ char *m_config_stringPrefShared;
protected:
void exit_parse_error()
@@ -295,7 +299,7 @@ private:
class tag_array {
public:
// Use this constructor
- tag_array( const cache_config &config, int core_id, int type_id );
+ tag_array(cache_config &config, int core_id, int type_id );
~tag_array();
enum cache_request_status probe( new_addr_type addr, unsigned &idx ) const;
@@ -314,12 +318,12 @@ public:
void print( FILE *stream, unsigned &total_access, unsigned &total_misses ) const;
float windowed_miss_rate( ) const;
void get_stats(unsigned &total_access, unsigned &total_misses) const;
-
+ void update_cache_parameters(cache_config &config);
protected:
// This constructor is intended for use only from derived classes that wish to
// avoid unnecessary memory allocation that takes place in the
// other tag_array constructor
- tag_array( const cache_config &config,
+ tag_array( cache_config &config,
int core_id,
int type_id,
cache_block_t* new_lines );
@@ -327,7 +331,7 @@ protected:
protected:
- const cache_config &m_config;
+ cache_config &m_config;
cache_block_t *m_lines; /* nbanks x nset x assoc lines in total */
@@ -372,6 +376,12 @@ public:
mem_fetch *next_access();
void display( FILE *fp ) const;
+ void check_mshr_parameters( unsigned num_entries, unsigned max_merged )
+ {
+ assert(m_num_entries==num_entries && "Change of MSHR parameters between kernels is not allowed");
+ assert(m_max_merged==max_merged && "Change of MSHR parameters between kernels is not allowed");
+ }
+
private:
// finite sized, fully associative table, with a finite maximum number of merged requests
@@ -408,7 +418,7 @@ bool was_read_sent( const std::list<cache_event> &events );
/// Each subclass implements its own 'access' function
class baseline_cache : public cache_t {
public:
- baseline_cache( const char *name, const cache_config &config, int core_id, int type_id, mem_fetch_interface *memport,
+ baseline_cache( const char *name, cache_config &config, int core_id, int type_id, mem_fetch_interface *memport,
enum mem_fetch_status status )
: m_config(config), m_tag_array(new tag_array(config,core_id,type_id)), m_mshrs(config.m_mshr_entries,config.m_mshr_max_merge)
{
@@ -435,6 +445,13 @@ public:
delete m_tag_array;
}
+ void update_cache_parameters(cache_config &config)
+ {
+ m_config=config;
+ m_tag_array->update_cache_parameters(config);
+ m_mshrs.check_mshr_parameters(config.m_mshr_entries,config.m_mshr_max_merge);
+ }
+
virtual enum cache_request_status access( new_addr_type addr, mem_fetch *mf, unsigned time, std::list<cache_event> &events ) = 0;
/// Sends next request to lower level of memory
void cycle();
@@ -465,7 +482,7 @@ public:
protected:
// Constructor that can be used by derived classes with custom tag arrays
baseline_cache( const char *name,
- const cache_config &config,
+ cache_config &config,
int core_id,
int type_id,
mem_fetch_interface *memport,
@@ -480,7 +497,7 @@ protected:
protected:
std::string m_name;
- const cache_config &m_config;
+ cache_config &m_config;
tag_array* m_tag_array;
mshr_table m_mshrs;
std::list<mem_fetch*> m_miss_queue;
@@ -527,7 +544,7 @@ protected:
/// Read only cache
class read_only_cache : public baseline_cache {
public:
- read_only_cache( const char *name, const cache_config &config, int core_id, int type_id, mem_fetch_interface *memport, enum mem_fetch_status status )
+ read_only_cache( const char *name, cache_config &config, int core_id, int type_id, mem_fetch_interface *memport, enum mem_fetch_status status )
: baseline_cache(name,config,core_id,type_id,memport,status){}
/// Access cache for read_only_cache: returns RESERVATION_FAIL if request could not be accepted (for any reason)
@@ -536,14 +553,14 @@ public:
virtual ~read_only_cache(){}
protected:
- read_only_cache( const char *name, const cache_config &config, int core_id, int type_id, mem_fetch_interface *memport, enum mem_fetch_status status, tag_array* new_tag_array )
+ read_only_cache( const char *name, cache_config &config, int core_id, int type_id, mem_fetch_interface *memport, enum mem_fetch_status status, tag_array* new_tag_array )
: baseline_cache(name,config,core_id,type_id,memport,status, new_tag_array){}
};
/// Data cache - Implements common functions for L1 and L2 data cache
class data_cache : public baseline_cache {
public:
- data_cache( const char *name, const cache_config &config,
+ data_cache( const char *name, cache_config &config,
int core_id, int type_id, mem_fetch_interface *memport,
mem_fetch_allocator *mfcreator, enum mem_fetch_status status )
: baseline_cache(name,config,core_id,type_id,memport,status)
@@ -581,9 +598,10 @@ public:
}
}
+
protected:
data_cache( const char *name,
- const cache_config &config,
+ cache_config &config,
int core_id,
int type_id,
mem_fetch_interface *memport,
@@ -636,7 +654,7 @@ protected:
/// (the policy used in fermi according to the CUDA manual)
class l1_cache : public data_cache {
public:
- l1_cache(const char *name, const cache_config &config,
+ l1_cache(const char *name, cache_config &config,
int core_id, int type_id, mem_fetch_interface *memport,
mem_fetch_allocator *mfcreator, enum mem_fetch_status status )
: data_cache(name,config,core_id,type_id,memport,mfcreator,status){}
@@ -647,7 +665,7 @@ public:
protected:
l1_cache( const char *name,
- const cache_config &config,
+ cache_config &config,
int core_id,
int type_id,
mem_fetch_interface *memport,
@@ -661,7 +679,7 @@ protected:
/// Models second level shared cache with global write-back and write-allocate policies
class l2_cache : public data_cache {
public:
- l2_cache(const char *name, const cache_config &config,
+ l2_cache(const char *name, cache_config &config,
int core_id, int type_id, mem_fetch_interface *memport,
mem_fetch_allocator *mfcreator, enum mem_fetch_status status )
: data_cache(name,config,core_id,type_id,memport,mfcreator,status){}
@@ -681,7 +699,7 @@ public:
// http://www-graphics.stanford.edu/papers/texture_prefetch/
class tex_cache : public cache_t {
public:
- tex_cache( const char *name, const cache_config &config, int core_id, int type_id, mem_fetch_interface *memport,
+ tex_cache( const char *name, cache_config &config, int core_id, int type_id, mem_fetch_interface *memport,
enum mem_fetch_status request_status,
enum mem_fetch_status rob_status )
: m_config(config),
generated by cgit v1.3 (git 2.53.0) at 2026-07-11 03:45:29 +0000