From: Lijo Lazar <[email protected]> Add functions required for suspend/resume of GFXHUB instances which are part of an XCP.
Signed-off-by: Lijo Lazar <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c | 35 ++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c index b9316bfb7263..8ba59ffe0e9f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c @@ -21,6 +21,7 @@ * */ #include "amdgpu.h" +#include "amdgpu_xcp.h" #include "gfxhub_v1_2.h" #include "gfxhub_v1_1.h" @@ -638,3 +639,37 @@ const struct amdgpu_gfxhub_funcs gfxhub_v1_2_funcs = { .init = gfxhub_v1_2_init, .get_xgmi_info = gfxhub_v1_2_get_xgmi_info, }; + +static int gfxhub_v1_2_xcp_resume(void *handle, uint32_t inst_mask) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + bool value; + int ret; + + if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) + value = false; + else + value = true; + + gfxhub_v1_2_xcc_set_fault_enable_default(adev, value, inst_mask); + + if (!amdgpu_sriov_vf(adev)) + ret = gfxhub_v1_2_xcc_gart_enable(adev, inst_mask); + + return ret; +} + +static int gfxhub_v1_2_xcp_suspend(void *handle, uint32_t inst_mask) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (!amdgpu_sriov_vf(adev)) + gfxhub_v1_2_xcc_gart_disable(adev, inst_mask); + + return 0; +} + +struct amdgpu_xcp_ip_funcs gfxhub_v1_2_xcp_funcs = { + .suspend = &gfxhub_v1_2_xcp_suspend, + .resume = &gfxhub_v1_2_xcp_resume +}; -- 2.39.2
