drm/amd/display: Test DM IRQ handler source guard

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[Why & How]
Add dm_test_irq_handler_invalid_source to cover the early return in
amdgpu_dm_irq_handler() when dc_interrupt_to_irq_source() cannot map the
hardware entry.

Reuse the existing unmapped irq_service stub and assert that neither the
high- nor the low-context handler is dispatched.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Alex Hung 2026-08-27 16:54:40 -06:00 • committed by Alex Deucher

parent 7aa0380017

commit 93c164fd12

1 changed files with 45 additions and 0 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c

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