drm/amdkfd: set attribute access for default ranges

Attribute access value for default ranges is set, based on
process xnack on/off.
XNACK ON has GPU access attribute for unregistered ranges through page
fault. While XNACK OFF has no access attribute for unregistered ranges.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 46591ce..cfd8065 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -2887,12 +2887,11 @@ svm_range_get_attr(struct kfd_process *p, uint64_t start, uint64_t size,
                pr_debug("range attrs not found return default values\n");
                svm_range_set_default_attributes(&location, &prefetch_loc,
                                                 &granularity, &flags);
-               /* TODO: Automatically create SVM ranges and map them on
-                * GPU page faults
                if (p->xnack_enabled)
                        bitmap_fill(bitmap_access, MAX_GPU_INSTANCE);
-                */
-
+               else
+                       bitmap_zero(bitmap_access, MAX_GPU_INSTANCE);
+               bitmap_zero(bitmap_aip, MAX_GPU_INSTANCE);
                goto fill_values;
        }
        bitmap_fill(bitmap_access, MAX_GPU_INSTANCE);