4.61 CMN600Cache - trace

This section describes the trace sources.

ALLOC_LINEFILL

The system allocated a complete line fill into the RAMs. This happens when the cache has to read the data for a line fill from potentially upstream or downstream. Fields:

ENTRY_INDEX unsigned int
The entry index the line has been loaded into.
MASTER_ID unsigned int
The master ID for the associated transaction.
MEMORY_ATTRIBUTES unsigned int
The memory attributes used for the allocation. bits[3:0] are the inner ACACHE, bits[7:4] are the outer ACACHE, bits[9:8] are ADOMAIN, bits[12:10] are APROT, the rest are undocumented.
NS_ADDR unsigned int
The security world and address of the first byte of the line, the MSB encodes the NS bit.

ALLOC_WRITE

The system allocated a complete line write into the RAMs. This happens when the cache receives a complete cache line write. It need not read from anywhere. Fields:

ENTRY_INDEX unsigned int
The entry index the line has been written into.
MEMORY_ATTRIBUTES unsigned int
The memory attributes used for the allocation. bits[3:0] are the inner ACACHE, bits[7:4] are the outer ACACHE, bits[9:8] are ADOMAIN, bits[12:10] are APROT, the rest are undocumented.
NS_ADDR unsigned int
The security world and address of the first byte of the line, the MSB encodes the NS bit.

ATOMIC_SLAVE_ACCESS

Information on the atomic operation at slave side. Fields:

ACCESS_RESULT enum
Result of atomic access
COMPARE_VALUE unsigned int
Value to be compared with memory by CAS
LOAD_VALUE unsigned int
Value to be loaded from memory as a result of atomic operation
MASTER unsigned int
ID of master which initiated the transaction
NS bool
Transaction is Non-Secure
OPERAND_VALUE unsigned int
Incoming operand value provided by core
OPERATION enum
Type of atomic operation
PADDR unsigned int
Physical address
STORE_VALUE unsigned int
Value to be stored to memory as a result of atomic operation

ArchMsg.Error.cached_attributes_mismatch

Attributes differ between page and line in cache from same page. Fields:

LINEATTR unsigned int
Attributes of the cache allocated lines
LINES unsigned int
Number of cache lines already allocated
NS_ADDR unsigned int
The security world and address of the first byte of the page, the MSB encodes the NS bit.
TXATTR unsigned int
Attributes of the transaction

ArchMsg.Error.cached_attributes_mismatch#lineinfo

Information about allocated lines in page. Fields:

PADDR unsigned int
address of this cache line
TAG unsigned int
tag data of this cache line

ArchMsg.Warning.ns_s_dirty_hit

Cache hit at S and NS versions of the same physical address. Fields:

INDEX0 unsigned int
The cache line index of the affected cache line
INDEX1 unsigned int
The cache line index of the other regime cache line
PADDR unsigned int
The address of the affected cache line
TAG0 unsigned int
The tag data of the affected cache line
TAG1 unsigned int
The tag data of the other regime cache line

CACHE_READ_HIT

Read access cache hit. Note that this trace source causes a large slowdown in the simulation. Fields:

IS_PRELOAD enum
Is the access a preload
IS_SHARED enum
Is the access shared
MASTER_ID unsigned int
Indicates the master associated with this monitor

CACHE_READ_MISS

Read access cache miss. Fields:

IS_PRELOAD enum
Is the access a preload
IS_SHARED enum
Is the access shared
MASTER_ID unsigned int
Indicates the master associated with this monitor

CACHE_WRITE_HIT

Write access cache hit. Note that this trace source causes a large slowdown in the simulation. Fields:

IS_PRELOAD enum
Is the access a preload
IS_SHARED enum
Is the access shared
MASTER_ID unsigned int
Indicates the master associated with this monitor

CACHE_WRITE_MISS

Write access cache miss. Fields:

IS_PRELOAD enum
Is the access a preload
IS_SHARED enum
Is the access shared
MASTER_ID unsigned int
Indicates the master associated with this monitor

ENTRY_BECOMES_INVALID

An entry is now invalid. The cause could be any reason. Fields:

ENTRY_INDEX unsigned int
The entry index that has become invalid.

ENTRY_SET_DIRTY

Entry change, clean/dirty. Fields:

ENTRY_INDEX unsigned int
The entry index that has become clean or dirty.
STATUS unsigned int
True if the line was made dirty

ERROR_MIXED_ATTRIBUTES_LINE

Mismatched line and transaction attributes. Fields:

ENTRY_INDEX unsigned int
The entry index that has collided.
NS_ADDR unsigned int
The security world and address of the first byte of the line, the MSB encodes the NS bit.

ERROR_MIXED_ATTRIBUTES_PAGE

Attributes differ between page and lines in cache from the same page. Fields:

NS_ADDR unsigned int
The security world and address of the first byte of the page, the MSB encodes the NS bit.

change_dvm_disabled_ports

This reports a bitmap of which ports are disabled to receive DVM messages. Fields:

new_bitmap unsigned int
The new bitmap of disabled ports
old_bitmap unsigned int
The old bitmap of disabled ports

change_upstream_disabled_ports

This reports a bitmap of which upstream ports of the cache are _disabled_ and so we won't sends snoop requests to them. Fields:

new_bitmap unsigned int
The bitmap of upstream ports that are disabled.
old_bitmap unsigned int
The bitmap of upstream ports that are disabled.

entry_after_far_atomic

A cache line has had a far atomic applied to it. Fields:

atomic_operation enum
The operation that operated on this line.
be bool
The far atomic's big-endian flag.
data unsigned int
The data in the cache line.
entry_begin_address unsigned int
The start address of the entry.
entry_index unsigned int
The entry index in the cache.
incoming_data unsigned int
The incoming data from the far atomic. For CAS operations then this is compare-value and then the replacement-value
master_id unsigned int
The master ID for the associated transaction
ns enum
The security state of the line
prior_data unsigned int
The data that will be returned as the 'prior' data of the far atomic.
trans_begin_address unsigned int
The start address of the transaction.

entry_after_read

A cache line has been read. Fields:

ace_operation enum
The ACE operation that operated on this line.
data unsigned int
The data in the cache line.
dirty bool
Is the line ACE-dirty.
entry_begin_address unsigned int
The start address of the entry.
entry_index unsigned int
The entry index in the cache.
ns enum
The security state of the line
snoop bool
This transaction is a snoop transaction
trans_begin_address unsigned int
The start address of the transaction.
unique bool
Is the line ACE-unique.

entry_after_write

A cache line has been written. Fields:

ace_operation enum
The ACE operation that operated on this line.
data unsigned int
The data in the cache line.
entry_begin_address unsigned int
The start address of the entry.
entry_index unsigned int
The entry index in the cache.
ns enum
The security state of the line
trans_begin_address unsigned int
The start address of the transaction.
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