drm/msm: Add modparam to allow vram carveout
authorIskren Chernev <iskren.chernev@gmail.com>
Wed, 30 Dec 2020 15:29:43 +0000 (17:29 +0200)
committerRob Clark <robdclark@chromium.org>
Thu, 7 Jan 2021 17:12:53 +0000 (09:12 -0800)
commit3f7759e7b7585a0bffda06d4eddc6b0b850ef6c3
treefbac337eaa0e99849172ec922f2233281a2f1e02
parentd863f0c7b536288e2bd40cbc01c10465dd226b11
drm/msm: Add modparam to allow vram carveout

Using the GPU with a VRAM Carveout is a security vulnerability.
Nevertheless it is sometimes required, especially when no IOMMU
implementation is available for a certain platform.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
drivers/gpu/drm/msm/adreno/a2xx_gpu.c
drivers/gpu/drm/msm/adreno/a3xx_gpu.c
drivers/gpu/drm/msm/adreno/a4xx_gpu.c
drivers/gpu/drm/msm/adreno/adreno_device.c
drivers/gpu/drm/msm/adreno/adreno_gpu.h