From 8763db85f8d03c16bf51db35a9a2149abde024a1 Mon Sep 17 00:00:00 2001 From: xinhui pan Date: Mon, 11 Mar 2019 12:17:14 +0800 Subject: [PATCH 1/4] drm/amdgpu: Fix NULL pointer when ta is missing Ta is optional, so check if ta firmware is loaded or not. Signed-off-by: xinhui pan --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 7e3e1d588d74..32388b5218e9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -707,10 +707,13 @@ static int psp_hw_start(struct psp_context *psp) "XGMI: Failed to initialize XGMI session\n"); } - ret = psp_ras_initialize(psp); - if (ret) - dev_err(psp->adev->dev, - "RAS: Failed to initialize RAS\n"); + + if (psp->adev->psp.ta_fw) { + ret = psp_ras_initialize(psp); + if (ret) + dev_err(psp->adev->dev, + "RAS: Failed to initialize RAS\n"); + } return 0; } @@ -963,7 +966,8 @@ static int psp_hw_fini(void *handle) psp->xgmi_context.initialized == 1) psp_xgmi_terminate(psp); - psp_ras_terminate(psp); + if (psp->adev->psp.ta_fw) + psp_ras_terminate(psp); psp_ring_destroy(psp, PSP_RING_TYPE__KM); @@ -998,10 +1002,12 @@ static int psp_suspend(void *handle) } } - ret = psp_ras_terminate(psp); - if (ret) { - DRM_ERROR("Failed to terminate ras ta\n"); - return ret; + if (psp->adev->psp.ta_fw) { + ret = psp_ras_terminate(psp); + if (ret) { + DRM_ERROR("Failed to terminate ras ta\n"); + return ret; + } } ret = psp_ring_stop(psp, PSP_RING_TYPE__KM); -- 2.17.1