From 0273b5fac28b3b13111b978c7c27c908ba9d28c2 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Dec 2015 17:02:53 -0500 Subject: [PATCH 0023/1110] drm/amdgpu: add more debugging output for driver failures Add more fine grained debugging output for init/fini/suspend/ resume failures. Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 73 +++++++++++++++++++++++------- 1 file changed, 57 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index c5206fd..991884a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1214,12 +1214,14 @@ static int amdgpu_early_init(struct amdgpu_device *adev) } else { if (adev->ip_blocks[i].funcs->early_init) { r = adev->ip_blocks[i].funcs->early_init((void *)adev); - if (r == -ENOENT) + if (r == -ENOENT) { adev->ip_block_status[i].valid = false; - else if (r) + } else if (r) { + DRM_ERROR("early_init %d failed %d\n", i, r); return r; - else + } else { adev->ip_block_status[i].valid = true; + } } else { adev->ip_block_status[i].valid = true; } @@ -1237,20 +1239,28 @@ static int amdgpu_init(struct amdgpu_device *adev) if (!adev->ip_block_status[i].valid) continue; r = adev->ip_blocks[i].funcs->sw_init((void *)adev); - if (r) + if (r) { + DRM_ERROR("sw_init %d failed %d\n", i, r); return r; + } adev->ip_block_status[i].sw = true; /* need to do gmc hw init early so we can allocate gpu mem */ if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC) { r = amdgpu_vram_scratch_init(adev); - if (r) + if (r) { + DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r); return r; + } r = adev->ip_blocks[i].funcs->hw_init((void *)adev); - if (r) + if (r) { + DRM_ERROR("hw_init %d failed %d\n", i, r); return r; + } r = amdgpu_wb_init(adev); - if (r) + if (r) { + DRM_ERROR("amdgpu_wb_init failed %d\n", r); return r; + } adev->ip_block_status[i].hw = true; } } @@ -1262,8 +1272,10 @@ static int amdgpu_init(struct amdgpu_device *adev) if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC) continue; r = adev->ip_blocks[i].funcs->hw_init((void *)adev); - if (r) + if (r) { + DRM_ERROR("hw_init %d failed %d\n", i, r); return r; + } adev->ip_block_status[i].hw = true; } @@ -1280,12 +1292,16 @@ static int amdgpu_late_init(struct amdgpu_device *adev) /* enable clockgating to save power */ r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_GATE); - if (r) + if (r) { + DRM_ERROR("set_clockgating_state(gate) %d failed %d\n", i, r); return r; + } if (adev->ip_blocks[i].funcs->late_init) { r = adev->ip_blocks[i].funcs->late_init((void *)adev); - if (r) + if (r) { + DRM_ERROR("late_init %d failed %d\n", i, r); return r; + } } } @@ -1306,10 +1322,15 @@ static int amdgpu_fini(struct amdgpu_device *adev) /* ungate blocks before hw fini so that we can shutdown the blocks safely */ r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); - if (r) + if (r) { + DRM_ERROR("set_clockgating_state(ungate) %d failed %d\n", i, r); return r; + } r = adev->ip_blocks[i].funcs->hw_fini((void *)adev); /* XXX handle errors */ + if (r) { + DRM_DEBUG("hw_fini %d failed %d\n", i, r); + } adev->ip_block_status[i].hw = false; } @@ -1318,6 +1339,9 @@ static int amdgpu_fini(struct amdgpu_device *adev) continue; r = adev->ip_blocks[i].funcs->sw_fini((void *)adev); /* XXX handle errors */ + if (r) { + DRM_DEBUG("sw_fini %d failed %d\n", i, r); + } adev->ip_block_status[i].sw = false; adev->ip_block_status[i].valid = false; } @@ -1335,9 +1359,15 @@ static int amdgpu_suspend(struct amdgpu_device *adev) /* ungate blocks so that suspend can properly shut them down */ r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); + if (r) { + DRM_ERROR("set_clockgating_state(ungate) %d failed %d\n", i, r); + } /* XXX handle errors */ r = adev->ip_blocks[i].funcs->suspend(adev); /* XXX handle errors */ + if (r) { + DRM_ERROR("suspend %d failed %d\n", i, r); + } } return 0; @@ -1351,8 +1381,10 @@ static int amdgpu_resume(struct amdgpu_device *adev) if (!adev->ip_block_status[i].valid) continue; r = adev->ip_blocks[i].funcs->resume(adev); - if (r) + if (r) { + DRM_ERROR("resume %d failed %d\n", i, r); return r; + } } return 0; @@ -1484,8 +1516,10 @@ int amdgpu_device_init(struct amdgpu_device *adev, return -EINVAL; } r = amdgpu_atombios_init(adev); - if (r) + if (r) { + dev_err(adev->dev, "amdgpu_atombios_init failed\n"); return r; + } /* Post card if necessary */ if (!amdgpu_card_posted(adev)) { @@ -1499,21 +1533,26 @@ int amdgpu_device_init(struct amdgpu_device *adev, /* Initialize clocks */ r = amdgpu_atombios_get_clock_info(adev); - if (r) + if (r) { + dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n"); return r; + } /* init i2c buses */ amdgpu_atombios_i2c_init(adev); /* Fence driver */ r = amdgpu_fence_driver_init(adev); - if (r) + if (r) { + dev_err(adev->dev, "amdgpu_fence_driver_init failed\n"); return r; + } /* init the mode config */ drm_mode_config_init(adev->ddev); r = amdgpu_init(adev); if (r) { + dev_err(adev->dev, "amdgpu_init failed\n"); amdgpu_fini(adev); return r; } @@ -1570,8 +1609,10 @@ int amdgpu_device_init(struct amdgpu_device *adev, * explicit gating rather than handling it automatically. */ r = amdgpu_late_init(adev); - if (r) + if (r) { + dev_err(adev->dev, "amdgpu_late_init failed\n"); return r; + } return 0; } -- 2.7.4