accel/ivpu: Don't enable any tiles by default on VPU40xx

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commit eb0d253ff9 upstream.

There is no point in requesting 1 tile on VPU40xx as the FW will
probably need more tiles to run workloads, so it will have to
reconfigure PLL anyway. Don't enable any tiles and allow the FW to
perform initial tile configuration.

This improves NPU boot stability as the tiles are always enabled only
by the FW from the same initial state.

Fixes: 79cdc56c4a ("accel/ivpu: Add initial support for VPU 4")
Cc: stable@vger.kernel.org
Signed-off-by: Andrzej Kacprowski <Andrzej.Kacprowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240220131624.1447813-1-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Andrzej Kacprowski 2024-02-20 14:16:24 +01:00 • committed by Greg Kroah-Hartman

parent 3f70ed98f7

commit cca2020851

1 changed files with 1 additions and 1 deletions

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drivers/accel/ivpu/ivpu_hw_40xx.c

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