drm/amd/display: Test top-level IRQ handler and vmin/vmax worker

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[WHAT]
Add KUnit coverage for the two remaining uncovered functions in
amdgpu_dm_irq.c: amdgpu_dm_irq_handler() and dm_handle_vmin_vmax_update().

amdgpu_dm_irq_handler() is driven with a fake dc whose irq_service maps
the hardware IRQ entry to a DC source and whose per-source info table
lets dc_interrupt_ack() succeed; high- and low-context counting handlers
verify the immediate and scheduled dispatch paths.

Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Hung 2026-06-25 12:01:11 -06:00 • committed by Alex Deucher

parent aec345ba11

commit b11706cb7d

3 changed files with 134 additions and 2 deletions

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6

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c

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5

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h

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125

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

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