On Thu, Jan 22, 2026 at 5:42 AM Lijo Lazar <[email protected]> wrote:
>
> Add interface to set debugger trap flag in TMA region.
>
> Signed-off-by: Lijo Lazar <[email protected]>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.c | 19 ++++++++++++++++++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.h | 3 +++
> 2 files changed, 21 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.c
> index 70f444afece0..663b91c8e6f3 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.c
> @@ -19,7 +19,6 @@
> * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> * OTHER DEALINGS IN THE SOFTWARE.
> */
> -
Spurious change.
> #include <drm/drm_exec.h>
>
> #include "amdgpu.h"
> @@ -614,4 +613,22 @@ int amdgpu_cwsr_ioctl(struct drm_device *dev, void
> *data, struct drm_file *filp)
> }
>
> return r;
> +}
> +
> +int amdgpu_cwsr_set_trap_debug_flag(struct amdgpu_device *adev,
> + struct amdgpu_cwsr_trap_obj *cwsr_obj,
> + bool enabled)
> +{
> + uint64_t *l1tma;
> +
> + if (!amdgpu_cwsr_is_enabled(adev))
> + return -EOPNOTSUPP;
> +
> + if (!cwsr_obj)
> + return -EINVAL;
> +
> + l1tma = (uint64_t *)(cwsr_obj->tma_cpu_addr);
> + l1tma[2] = enabled;
> +
> + return 0;
> }
> \ No newline at end of file
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.h
> index c9f61e393fde..a32044b07b45 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cwsr.h
> @@ -93,5 +93,8 @@ static inline bool amdgpu_cwsr_has_dbg_wa(struct
> amdgpu_device *adev)
>
> int amdgpu_cwsr_ioctl(struct drm_device *dev, void *data,
> struct drm_file *filp);
> +int amdgpu_cwsr_set_trap_debug_flag(struct amdgpu_device *adev,
> + struct amdgpu_cwsr_trap_obj *cwsr_obj,
> + bool enabled);
>
Nothing uses this yet?
Alex
> #endif
> --
> 2.49.0
>
