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authorLuben Tuikov <luben.tuikov@amd.com>2020-02-26 15:30:36 -0500
committerAlex Deucher <alexander.deucher@amd.com>2020-04-28 16:20:30 -0400
commitb71a564e2509e1000044a9873cbee6d6a6a5ab90 (patch)
treeb6d2f97eceb46ec0802c909019ec4e3d499080d5 /drivers/gpu/drm/amd
parent218c0b7f183a88b3b2678fbca885a750dda2bff3 (diff)
drm/amdgpu: Fine-grained TMZ support
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 K├Ânig <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index ce13c3758460..acabb57aa8af 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -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;
}
}