diff options
| 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_priv.h | |
| parent | drm/amdkfd: Kmap event page for dGPUs (diff) | |
| download | linux-dev-374200b154ae48e8f011fb74dab21f80459f9e47.tar.xz linux-dev-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_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index aa9386356587..db27f9f13696 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -105,6 +105,12 @@ extern int cwsr_enable; extern int send_sigterm; /* + * This kernel module is used to simulate large bar machine on non-large bar + * enabled machines. + */ +extern int debug_largebar; + +/* * Ignore CRAT table during KFD initialization, can be used to work around * broken CRAT tables on some AMD systems */ |