drm/amdgpu: Add GFXHUB v1.2 XCP funcs

Add functions required for suspend/resume of GFXHUB instances which are
part of an XCP.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c
index b9316bf..8ba59ff 100644 (file)
--- 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
+};