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| author | Louis Verhaard <louis.verhaard@arm.com> | 2020-08-21 14:06:25 +0200 |
|---|---|---|
| committer | Louis Verhaard <louis.verhaard@arm.com> | 2020-08-26 08:18:27 +0200 |
| commit | 814cfbb8124ba0b3828db2bb12d9342ae9c39f19 (patch) | |
| tree | 519f7f41091efa944f6c4e3eb732892c56da40e1 /ethosu/vela/high_level_command_stream.py | |
| parent | 7579c75d870c25ee075e46a110b6b89cf266db64 (diff) | |
| download | ethos-u-vela-814cfbb8124ba0b3828db2bb12d9342ae9c39f19.tar.gz | |
MLBEDSW-2688: LUT DMA may require kernel wait
LUT related updates specific for 16K SHRAM:
- prevent LUT DMA transfer from overwriting accumulator SHRAM of an ongoing operation
- do not use the last 2K of SHRAM as accumulator during LUT operations
Change-Id: I17066e0410c6f07b125ed245002d7b19269a7a8a
Signed-off-by: Louis Verhaard <louis.verhaard@arm.com>
Diffstat (limited to 'ethosu/vela/high_level_command_stream.py')
| -rw-r--r-- | ethosu/vela/high_level_command_stream.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ethosu/vela/high_level_command_stream.py b/ethosu/vela/high_level_command_stream.py index 95af1ccb..b8a19f50 100644 --- a/ethosu/vela/high_level_command_stream.py +++ b/ethosu/vela/high_level_command_stream.py @@ -243,6 +243,10 @@ class NpuStripe(Command): MemoryRangeSet(tens.mem_area, tens.address, tens.address + tens.storage_size()), AccessDirection.Read, ) + # Add write access to SHRAM, needed when LUTs can overwrite accumulator banks + res.add( + self.ps.shared_buffer.get_shram_memory_access_range(), AccessDirection.Write, + ) return res def is_npu_pass_command(self): |