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| author | erik.andersson@arm.com <erik.andersson@arm.com> | 2021-03-16 09:40:24 +0100 |
|---|---|---|
| committer | erik.andersson@arm.com <erik.andersson@arm.com> | 2021-03-19 14:05:17 +0100 |
| commit | 1878dab5f2fb860ae98e5e1dafcdb5cec7d33349 (patch) | |
| tree | 55e1c5c076453bf8df8572bc10c073d94782b5b9 /ethosu/vela/driver_actions.py | |
| parent | a8e48e6792216974d41c7fc69d9406916c153fba (diff) | |
| download | ethos-u-vela-1878dab5f2fb860ae98e5e1dafcdb5cec7d33349.tar.gz | |
MLBEDSW-3458: Added command stream size check.
If the command stream size exceeds a certain threshold,
a VelaError will now be raised.
Signed-off-by: erik.andersson@arm.com <erik.andersson@arm.com>
Change-Id: I9b9383f4c298a778b160cd527374e9244e4cae26
Diffstat (limited to 'ethosu/vela/driver_actions.py')
| -rw-r--r-- | ethosu/vela/driver_actions.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ethosu/vela/driver_actions.py b/ethosu/vela/driver_actions.py index 5a85df06..317b2a69 100644 --- a/ethosu/vela/driver_actions.py +++ b/ethosu/vela/driver_actions.py @@ -24,6 +24,7 @@ from .api import NpuAccelerator from .architecture_features import Accelerator from .architecture_features import ArchitectureFeatures from .architecture_features import create_default_arch +from .errors import VelaError from .ethos_u55_regs.ethos_u55_regs import ARCH_VER from .ethos_u55_regs.ethos_u55_regs import config_r from .ethos_u55_regs.ethos_u55_regs import id_r @@ -120,6 +121,12 @@ def create_driver_payload(register_command_stream: List[int], arch: Architecture da_list: List[int] = [] emit_fourcc(da_list, "COP1") emit_config(da_list, 0, 1, arch) + if len(register_command_stream) >= 1 << 24: + raise VelaError( + "The command stream exceeds the driver size limit of 64 MiB. " + f"The current stream size is {4*len(register_command_stream)/2**20:.2F} MiB" + ) + emit_cmd_stream_header(da_list, len(register_command_stream)) # Append command stream words |