drm/amdgpu: fix bug with IH ring setup

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[ Upstream commit c837243ff4 ]

The bug limits the IH ring wptr address to 40bit. When the system memory
is bigger than 1TB, the bus address is more than 40bit, this causes the
interrupt cannot be handled and cleared correctly.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Philip Yang 2018-11-12 14:00:45 -05:00 • committed by Greg Kroah-Hartman

parent 021e2f3fc9

commit 4dc8439068

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/amd/amdgpu/vega10_ih.c

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