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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-03-15 17:27:53 -0400 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-03-15 17:27:53 -0400 |
| commit | 374200b154ae48e8f011fb74dab21f80459f9e47 (patch) | |
| tree | d801c957febe2b211b23486e26d139d636535034 /drivers/gpu/drm/amd/amdkfd/kfd_crat.c | |
| parent | 0fc8011f89feb8b2c3008583b777d097e1974660 (diff) | |
| download | linux-stable-374200b154ae48e8f011fb74dab21f80459f9e47.tar.gz linux-stable-374200b154ae48e8f011fb74dab21f80459f9e47.tar.bz2 linux-stable-374200b154ae48e8f011fb74dab21f80459f9e47.zip | |
drm/amdkfd: Add module option for testing large-BAR functionality
Simulate large-BAR system by exporting only visible memory. This
limits the amount of available VRAM to the size of the BAR, but
enables CPU access to VRAM.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_crat.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c index d85112224f1d..4f126ef6139b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c @@ -1117,6 +1117,9 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image, sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + sub_type_hdr->length); + if (debug_largebar) + local_mem_info.local_mem_size_private = 0; + if (local_mem_info.local_mem_size_private == 0) ret = kfd_fill_gpu_memory_affinity(&avail_size, kdev, HSA_MEM_HEAP_TYPE_FB_PUBLIC, |