Sometimes, atombios may be stucked when resume back. Duo to PCIE has set to D3cold, the ACC of GFX adapter is power-down. it should re-init the scratch registers. with the change, test is pass more than 80 cycles on Fiji. Change-Id: I9cf40c475c4a5a31216949d50cc5e30b74dc21c4 Signed-off-by: JimQu <Jim.Qu at amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index e82c487..bfe9a5c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2098,6 +2098,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) console_unlock(); return r; } + amdgpu_atombios_scratch_regs_init(adev); } /* post card */ -- 1.9.1
