Am 28.03.2017 um 18:21 schrieb Alex Deucher:
We check the mem config register to make sure it's been
programmed by the vbios to determine if we need to post
so we check for a non-0 value. However, when the asic
comes out of reset, we may see all ones here, so check
for that too.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2a5af62..4bf1c8f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -719,7 +719,7 @@ bool amdgpu_need_post(struct amdgpu_device *adev)
/* then check MEM_SIZE, in case the crtcs are off */
reg = amdgpu_asic_get_config_memsize(adev);
- if (reg)
+ if ((reg != 0) && (reg != 0xffffffff))
return false;
return true;
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