[PATCH 01/31] drm/amdgpu: enable legacy enforce isolation by default

[Alex Deucher]

Enable legacy enforce isolation (just serialize kernel
GC submissions).  This way we can reset a ring and
only affect the the process currently using that ring.
This mirrors what windows does.

Reviewed-by: Christian König <christian.koe...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 72e41781afb06..ca882e3d95bb7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2148,9 +2148,7 @@ static int amdgpu_device_check_arguments(struct 
amdgpu_device *adev)
 
        for (i = 0; i < MAX_XCP; i++) {
                switch (amdgpu_enforce_isolation) {
-               case -1:
                case 0:
-               default:
                        /* disable */
                        adev->enforce_isolation[i] = 
AMDGPU_ENFORCE_ISOLATION_DISABLE;
                        break;
@@ -2159,7 +2157,9 @@ static int amdgpu_device_check_arguments(struct 
amdgpu_device *adev)
                        adev->enforce_isolation[i] =
                                AMDGPU_ENFORCE_ISOLATION_ENABLE;
                        break;
+               case -1:
                case 2:
+               default:
                        /* enable legacy mode */
                        adev->enforce_isolation[i] =
                                AMDGPU_ENFORCE_ISOLATION_ENABLE_LEGACY;
-- 
2.49.0