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drm/amdgpu: disable gfxoff while use no H/W scheduling policy 

While gfxoff is enabled, the mmVM_XXX registers will be 0xfffffff while the GFX
is in "off" state. KFD queue creattion doesn't use ring based method, so it will
trigger a VM fault.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2019-09-02 23:34:32 +08:00 committed by Alex Deucher
parent f5d843d4ea
commit aa978594cf
2 changed files with 2 additions and 1 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -169,6 +169,7 @@ extern int amdgpu_discovery;
extern int amdgpu_mes;
extern int amdgpu_noretry;
extern int amdgpu_force_asic_type;
extern int sched_policy;
#ifdef CONFIG_DRM_AMDGPU_SI
extern int amdgpu_si_support;

2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1624,7 +1624,7 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
}
adev->pm.pp_feature = amdgpu_pp_feature_mask;
if (amdgpu_sriov_vf(adev))
if (amdgpu_sriov_vf(adev) || sched_policy == KFD_SCHED_POLICY_NO_HWS)
adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
for (i = 0; i < adev->num_ip_blocks; i++) {