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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-07-01 00:26:47 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-14 18:06:28 +0300 |
| commit | 70d17a25da21e1d497db3580ae27682952ddfd98 (patch) | |
| tree | e1860c9647fe47af24e5789af00300bfe2290990 | |
| parent | 833fa075b87c36be437a941393d750c36022d902 (diff) | |
| download | linux-70d17a25da21e1d497db3580ae27682952ddfd98.tar.xz | |
drm/amdgpu: check scratch registers to see if we need post (v2)
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: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 541695768f0a..d92ac5c1af54 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -736,7 +736,12 @@ 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)) |