After svm range prefetch and migrate to GPU, if GPU has no access or access in place attribute, add GPU to range access_bitmap to be able to update GPU page table.
Signed-off-by: Philip Yang <[email protected]> --- drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index d9111fea724b..3b640772d9c5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -2869,6 +2869,17 @@ svm_range_set_attr(struct kfd_process *p, uint64_t start, uint64_t size, continue; } + if (migrated && prange->prefetch_loc) { + int gpuidx; + + gpuidx = kfd_process_gpuidx_from_gpuid(p, + prange->prefetch_loc); + if (gpuidx >= 0 && + !test_bit(gpuidx, prange->bitmap_access) && + !test_bit(gpuidx, prange->bitmap_aip)) + bitmap_set(prange->bitmap_access, gpuidx, 1); + } + r = svm_range_validate_and_map(mm, prange, MAX_GPU_INSTANCE, true, true); if (r) -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
