drm/amdgpu: add option for force enable multipipe policy for compute

Useful for testing the effects of multipipe compute without recompiling.

Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 3930fcc3e344..83435ccbad44 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -111,6 +111,12 @@ void amdgpu_gfx_parse_disable_cu(unsigned *mask, unsigned max_se, unsigned max_s
 
 static bool amdgpu_gfx_is_multipipe_capable(struct amdgpu_device *adev)
 {
+        if (amdgpu_compute_multipipe != -1) {
+                DRM_INFO("amdgpu: forcing compute pipe policy %d\n",
+                         amdgpu_compute_multipipe);
+                return amdgpu_compute_multipipe == 1;
+        }
+
         /* FIXME: spreading the queues across pipes causes perf regressions
          * on POLARIS11 compute workloads */
         if (adev->asic_type == CHIP_POLARIS11)