Am 04.03.20 um 16:17 schrieb Luben Tuikov:
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@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
I've pushed the fixes for TMZ buffer moves this morning, so I think we
should be clear to even enable it by default for at least Raven.
But either way this patch is: Reviewed-by: Christian König
<christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 30 ++++++++++++++++---------
1 file 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 61a743368302..4f8fd067d150 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;
}
}
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