linux/drivers/gpu
Sam Bobroff 9234c9254e drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2
[ Upstream commit 3d0e3ce52c ]

The INTERRUPT_CNTL2 register expects a valid DMA address, but is
currently set with a GPU MC address.  This can cause problems on
systems that detect the resulting DMA read from an invalid address
(found on a Power8 guest).

Instead, use the DMA address of the dummy page because it will always
be safe.

Fixes: 27ae10641e ("drm/amdgpu: add interupt handler implementation for si v3")
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-31 16:36:15 +01:00
..
drm drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2 2019-12-31 16:36:15 +01:00
host1x gpu: host1x: Allocate gather copy for host1x 2019-12-31 16:35:29 +01:00
ipu-v3 gpu: ipu-v3: pre: don't trigger update if buffer address doesn't change 2019-12-05 09:21:07 +01:00
vga vga_switcheroo: Fix missing gpu_bound call at audio client registration 2018-11-13 11:09:00 -08:00
Makefile