Rather than checking the CONGIG_MEMSIZE register as that may
not be reliable on some APUs.
v2: The scratch register is only used on CIK+
Reviewed-by: Christian König <christian.koe...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 63f4bed..8042a8a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -722,7 +722,12 @@ bool amdgpu_need_post(struct amdgpu_device *adev)
adev->has_hw_reset = false;
return true;
}
- /* then check MEM_SIZE, in case the crtcs are off */
+
+ /* bios scratch used on CIK+ */
+ if (adev->asic_type >= CHIP_BONAIRE)
+ return amdgpu_atombios_scratch_need_asic_init(adev);
+
+ /* check MEM_SIZE for older asics */
reg = amdgpu_asic_get_config_memsize(adev);
if ((reg != 0) && (reg != 0xffffffff))
--
2.5.5
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