From: Boris Brezillon Date: Fri, 4 Apr 2025 08:09:33 +0000 (+0200) Subject: drm/panthor: Don't update MMU_INT_MASK in panthor_mmu_irq_handler() X-Git-Tag: v6.16-rc1~144^2~16^2~139 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6c4a3fa26799785c1873aacabcfd9b2d27e8dc97;p=thirdparty%2Flinux.git drm/panthor: Don't update MMU_INT_MASK in panthor_mmu_irq_handler() Interrupts are automatically unmasked in panthor_mmu_irq_threaded_handler() when the handler returns. Unmasking prematurely might generate spurious interrupts if the IRQ line is shared. Changes in v2: - New patch Changes in v3: - Add R-bs Reviewed-by: Liviu Dudau Reviewed-by: Steven Price Link: https://lore.kernel.org/r/20250404080933.2912674-6-boris.brezillon@collabora.com Signed-off-by: Boris Brezillon --- diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c index 0ba76982d45b6..dc173c6edde0f 100644 --- a/drivers/gpu/drm/panthor/panthor_mmu.c +++ b/drivers/gpu/drm/panthor/panthor_mmu.c @@ -1721,7 +1721,6 @@ static void panthor_mmu_irq_handler(struct panthor_device *ptdev, u32 status) * re-enabled. */ ptdev->mmu->irq.mask = new_int_mask; - gpu_write(ptdev, MMU_INT_MASK, new_int_mask); if (ptdev->mmu->as.slots[as].vm) ptdev->mmu->as.slots[as].vm->unhandled_fault = true;