From ea6f0931c1e7a956792c34f5ec80b71746864d7d Mon Sep 17 00:00:00 2001 From: Guchun Chen Date: Sun, 9 Feb 2020 16:21:09 +0800 Subject: [PATCH] drm/amdgpu: limit GDS clearing workaround in cold boot sequence GDS clear workaround will cause gfx failure in suspend/resume case. [ 98.679559] [drm:amdgpu_device_ip_late_init [amdgpu]] *ERROR* late_init of IP block failed -110 [ 98.679561] PM: dpm_run_callback(): pci_pm_resume+0x0/0xa0 returns -110 [ 98.679562] PM: Device 0000:03:00.0 failed to resume async: error -110 As this workaround is specific to the HW bug of GDS's ECC error existing in cold boot up, so bypass this workaround in suspend/ resume case after booting up. Signed-off-by: Guchun Chen Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 90f64b8bc358..be289f0fff37 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -4374,9 +4374,12 @@ static int gfx_v9_0_ecc_late_init(void *handle) struct amdgpu_device *adev = (struct amdgpu_device *)handle; int r; - r = gfx_v9_0_do_edc_gds_workarounds(adev); - if (r) - return r; + /* limit gds clearing operation in cold boot sequence */ + if (!adev->in_suspend) { + r = gfx_v9_0_do_edc_gds_workarounds(adev); + if (r) + return r; + } /* requires IBs so do in late init after IB pool is initialized */ r = gfx_v9_0_do_edc_gpr_workarounds(adev); -- 2.25.1