From aa978594cf7fa0ad91d0671bb1a33ec38fbd3d25 Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Mon, 2 Sep 2019 23:34:32 +0800 Subject: [PATCH] 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 Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 7723f4ed0130..733331837d92 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -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; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index b09237b6531c..1affaa4ee1ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -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++) { -- 2.30.2