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drm/panthor: Update panthor_mmu::irq::mask when needed

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[ Upstream commit 8ba64cf2f358079d09faba7529aad2b0a46c7903 ]

When we clear the faulty bits in the AS mask, we also need to update
the panthor_mmu::irq::mask field otherwise our IRQ handler won't get
called again until the GPU is reset.

Changes in v2:
- Add Liviu's R-b

Changes in v3:
- Add Steve's R-b

Fixes: 647810ec24 ("drm/panthor: Add the MMU/VM logical block")
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250404080933.2912674-4-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Boris Brezillon
2025-04-04 10:09:31 +02:00
committed by Greg Kroah-Hartman
parent d94b25ac50
commit 8e6a63acc4
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/panthor/panthor_mmu.c
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@@ -780,6 +780,7 @@ out_enable_as:
if (ptdev->mmu->as.faulty_mask & panthor_mmu_as_fault_mask(ptdev, as)) {
gpu_write(ptdev, MMU_INT_CLEAR, panthor_mmu_as_fault_mask(ptdev, as));
ptdev->mmu->as.faulty_mask &= ~panthor_mmu_as_fault_mask(ptdev, as);
ptdev->mmu->irq.mask |= panthor_mmu_as_fault_mask(ptdev, as);
gpu_write(ptdev, MMU_INT_MASK, ~ptdev->mmu->as.faulty_mask);
}