leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amdgpu: Fine-grained TMZ support

Browse Source 
Add fine-grained per-ASIC TMZ support.

At the moment TMZ support is experimental for all
ASICs which support it.

Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Luben Tuikov 2020-02-26 15:30:36 -05:00 committed by Alex Deucher
parent 218c0b7f18
commit b71a564e25
1 changed files with 20 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -383,18 +383,28 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev)
*/
void amdgpu_gmc_tmz_set(struct amdgpu_device *adev)
{
if (!amdgpu_tmz)
return;
if (adev->asic_type < CHIP_RAVEN ||
adev->asic_type == CHIP_ARCTURUS) {
switch (adev->asic_type) {
case CHIP_RAVEN:
case CHIP_RENOIR:
case CHIP_NAVI10:
case CHIP_NAVI14:
case CHIP_NAVI12:
/* Don't enable it by default yet.
*/
if (amdgpu_tmz < 1) {
adev->gmc.tmz_enabled = false;
dev_info(adev->dev,
"Trusted Memory Zone (TMZ) feature disabled as experimental (default)\n");
} else {
adev->gmc.tmz_enabled = true;
dev_info(adev->dev,
"Trusted Memory Zone (TMZ) feature enabled as experimental (cmd line)\n");
}
break;
default:
adev->gmc.tmz_enabled = false;
dev_warn(adev->dev,
"Trusted Memory Zone (TMZ) feature not supported\n");
} else {
adev->gmc.tmz_enabled = true;
dev_info(adev->dev,
"Trusted Memory Zone (TMZ) feature supported and enabled\n");
break;
}
}