drm/amdgpu: add the accelerator pcie class

v2: add the base class id for accelerator (lijo)
v3: add the new pci class in amdgpu tree (hawking)
Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

@@ -2041,6 +2041,11 @@ static const struct pci_device_id pciidlist[] = {
 	  .class_mask = 0xffffff,
 	  .driver_data = CHIP_IP_DISCOVERY },
 
+	{ PCI_DEVICE(0x1002, PCI_ANY_ID),
+	  .class = AMD_ACCELERATOR_PROCESSING << 8,
+	  .class_mask = 0xffffff,
+	  .driver_data = CHIP_IP_DISCOVERY },
+
 	{0, 0, 0}
 };
 

drivers/gpu/drm/amd/include/amd_shared.h

@@ -27,6 +27,7 @@
 
 
 #define AMD_MAX_USEC_TIMEOUT		1000000  /* 1000 ms */
+#define AMD_ACCELERATOR_PROCESSING	0x1200   /* hardcoded pci class */
 
 /*
  * Chip flags