drm/amdgpu/si: Call amdgpu_ttm_set_active_vram_size from si_dma_start/stop

Without this, we were only ever using the first 256MB of VRAM.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97593
Tested-by: Konstantin A. Lepikhov <[email protected]>
Tested-by: Arek Ruśniak <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

diff --git a/drivers/gpu/drm/amd/amdgpu/si_dma.c b/drivers/gpu/drm/amd/amdgpu/si_dma.c
index 2abdaa681797efe8293dbb99e1f9c576fb40a735..4cbd4086ee7dcfb43673ea2dc1b8f6514e1d2d29 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/si_dma.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dma.c
@@ -132,6 +132,8 @@ static void si_dma_stop(struct amdgpu_device *adev)
                rb_cntl &= ~DMA_RB_ENABLE;
                WREG32(DMA_RB_CNTL + sdma_offsets[i], rb_cntl);
 
+               if (adev->mman.buffer_funcs_ring == ring)
+                       amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size);
                ring->ready = false;
        }
 }
@@ -192,6 +194,9 @@ static int si_dma_start(struct amdgpu_device *adev)
                        ring->ready = false;
                        return r;
                }
+
+               if (adev->mman.buffer_funcs_ring == ring)
+                       amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size);
        }
 
        return 0;