drm/amdgpu: fix usable gart size calculation (b3fcde18) · Commits · 戴 / test

amdgpu_do_test_moves() is failing because of wrong usable gart size calculation and throwing: [drm:amdgpu_do_test_moves [amdgpu]] *ERROR* 0000000020bdc9f3 bind failed Signed-off-by:

Nirmoy Das <nirmoy.das@amd.com> Reviewed-by:

Alex Deucher <alexander.deucher@amd.com> Reviewed-by:

Christian König <christian.koenig@amd.com> Signed-off-by:

Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_test.c

+4 −9

Original line number	Diff line number	Diff line
		@@ -42,16 +42,11 @@ static void amdgpu_do_test_moves(struct amdgpu_device *adev)
		size = 1024 * 1024;

		/* Number of tests =
		* (Total GTT - IB pool - writeback page - ring buffers) / test size
		* (Total GTT - gart_pin_size - (2 transfer windows for buffer moves)) / test size
		*/
		n = adev->gmc.gart_size - AMDGPU_IB_POOL_SIZE;
		for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
		if (adev->rings[i])
		n -= adev->rings[i]->ring_size;
		if (adev->wb.wb_obj)
		n -= AMDGPU_GPU_PAGE_SIZE;
		if (adev->irq.ih.ring_obj)
		n -= adev->irq.ih.ring_size;
		n = adev->gmc.gart_size - atomic64_read(&adev->gart_pin_size);
		n -= AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS *
		AMDGPU_GPU_PAGE_SIZE;
		n /= size;

		gtt_obj = kcalloc(n, sizeof(*gtt_obj), GFP_KERNEL);

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