diff options
| author | Christian König <christian.koenig@amd.com> | 2017-03-24 14:32:50 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-30 14:44:00 -0400 |
| commit | c7217b2af83e85dd6053ff13dc4ac2d24d85b97c (patch) | |
| tree | a5db8b3bc50e930689008a35d57f34c0209db063 /drivers/gpu/drm | |
| parent | bcf32a2371017c5de92cf9d36c811dc26076898a (diff) | |
drm/amdgpu: just disallow reading untouched registers
Not sure what the original intention was here, but returning a random piece of
kernel memory to userspace because we didn't set the value at all is clearly
not a good idea.
This patch disallows reading the register and returns
a proper error code instead.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 1fe654e8cb7f..b1132f5e84fc 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -464,15 +464,9 @@ static void vi_detect_hw_virtualization(struct amdgpu_device *adev) } static const struct amdgpu_allowed_register_entry tonga_allowed_read_registers[] = { - {mmGB_MACROTILE_MODE7, true}, }; static const struct amdgpu_allowed_register_entry cz_allowed_read_registers[] = { - {mmGB_TILE_MODE7, true}, - {mmGB_TILE_MODE12, true}, - {mmGB_TILE_MODE17, true}, - {mmGB_TILE_MODE23, true}, - {mmGB_MACROTILE_MODE7, true}, }; static const struct amdgpu_allowed_register_entry vi_allowed_read_registers[] = { |