44 static bool igp_read_bios_from_vram(struct amdgpu_device *adev)  in igp_read_bios_from_vram()  argument
50 	if (!(adev->flags & AMD_IS_APU))  in igp_read_bios_from_vram()
51 		if (!amdgpu_card_posted(adev))  in igp_read_bios_from_vram()
54 	adev->bios = NULL;  in igp_read_bios_from_vram()
55 	vram_base = pci_resource_start(adev->pdev, 0);  in igp_read_bios_from_vram()
65 	adev->bios = kmalloc(size, GFP_KERNEL);  in igp_read_bios_from_vram()
66 	if (adev->bios == NULL) {  in igp_read_bios_from_vram()
70 	memcpy_fromio(adev->bios, bios, size);  in igp_read_bios_from_vram()
75 bool amdgpu_read_bios(struct amdgpu_device *adev)  in amdgpu_read_bios()  argument
80 	adev->bios = NULL;  in amdgpu_read_bios()
82 	bios = pci_map_rom(adev->pdev, &size);  in amdgpu_read_bios()
91 		pci_unmap_rom(adev->pdev, bios);  in amdgpu_read_bios()
94 	adev->bios = kzalloc(size, GFP_KERNEL);  in amdgpu_read_bios()
95 	if (adev->bios == NULL) {  in amdgpu_read_bios()
96 		pci_unmap_rom(adev->pdev, bios);  in amdgpu_read_bios()
99 	memcpy_fromio(adev->bios, bios, size);  in amdgpu_read_bios()
100 	pci_unmap_rom(adev->pdev, bios);  in amdgpu_read_bios()
104 static bool amdgpu_read_platform_bios(struct amdgpu_device *adev)  in amdgpu_read_platform_bios()  argument
109 	adev->bios = NULL;  in amdgpu_read_platform_bios()
111 	bios = pci_platform_rom(adev->pdev, &size);  in amdgpu_read_platform_bios()
119 	adev->bios = kmemdup(bios, size, GFP_KERNEL);  in amdgpu_read_platform_bios()
120 	if (adev->bios == NULL) {  in amdgpu_read_platform_bios()
175 static bool amdgpu_atrm_get_bios(struct amdgpu_device *adev)  in amdgpu_atrm_get_bios()  argument
186 	if (adev->flags & AMD_IS_APU)  in amdgpu_atrm_get_bios()
218 	adev->bios = kmalloc(size, GFP_KERNEL);  in amdgpu_atrm_get_bios()
219 	if (!adev->bios) {  in amdgpu_atrm_get_bios()
226 				       adev->bios,  in amdgpu_atrm_get_bios()
233 	if (i == 0 || adev->bios[0] != 0x55 || adev->bios[1] != 0xaa) {  in amdgpu_atrm_get_bios()
234 		kfree(adev->bios);  in amdgpu_atrm_get_bios()
240 static inline bool amdgpu_atrm_get_bios(struct amdgpu_device *adev)  in amdgpu_atrm_get_bios()  argument
246 static bool amdgpu_read_disabled_bios(struct amdgpu_device *adev)  in amdgpu_read_disabled_bios()  argument
248 	if (adev->flags & AMD_IS_APU)  in amdgpu_read_disabled_bios()
249 		return igp_read_bios_from_vram(adev);  in amdgpu_read_disabled_bios()
251 		return amdgpu_asic_read_disabled_bios(adev);  in amdgpu_read_disabled_bios()
255 static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)  in amdgpu_acpi_vfct_bios()  argument
283 	if (vhdr->PCIBus != adev->pdev->bus->number ||  in amdgpu_acpi_vfct_bios()
284 	    vhdr->PCIDevice != PCI_SLOT(adev->pdev->devfn) ||  in amdgpu_acpi_vfct_bios()
285 	    vhdr->PCIFunction != PCI_FUNC(adev->pdev->devfn) ||  in amdgpu_acpi_vfct_bios()
286 	    vhdr->VendorID != adev->pdev->vendor ||  in amdgpu_acpi_vfct_bios()
287 	    vhdr->DeviceID != adev->pdev->device) {  in amdgpu_acpi_vfct_bios()
297 	adev->bios = kmemdup(&vbios->VbiosContent, vhdr->ImageLength, GFP_KERNEL);  in amdgpu_acpi_vfct_bios()
298 	ret = !!adev->bios;  in amdgpu_acpi_vfct_bios()
304 static inline bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)  in amdgpu_acpi_vfct_bios()  argument
310 bool amdgpu_get_bios(struct amdgpu_device *adev)  in amdgpu_get_bios()  argument
315 	r = amdgpu_atrm_get_bios(adev);  in amdgpu_get_bios()
317 		r = amdgpu_acpi_vfct_bios(adev);  in amdgpu_get_bios()
319 		r = igp_read_bios_from_vram(adev);  in amdgpu_get_bios()
321 		r = amdgpu_read_bios(adev);  in amdgpu_get_bios()
323 		r = amdgpu_read_disabled_bios(adev);  in amdgpu_get_bios()
326 		r = amdgpu_read_platform_bios(adev);  in amdgpu_get_bios()
328 	if (r == false || adev->bios == NULL) {  in amdgpu_get_bios()
330 		adev->bios = NULL;  in amdgpu_get_bios()
333 	if (adev->bios[0] != 0x55 || adev->bios[1] != 0xaa) {  in amdgpu_get_bios()
334 		printk("BIOS signature incorrect %x %x\n", adev->bios[0], adev->bios[1]);  in amdgpu_get_bios()
344 	adev->bios_header_start = RBIOS16(0x48);  in amdgpu_get_bios()
345 	if (!adev->bios_header_start) {  in amdgpu_get_bios()
348 	tmp = adev->bios_header_start + 4;  in amdgpu_get_bios()
349 	if (!memcmp(adev->bios + tmp, "ATOM", 4) ||  in amdgpu_get_bios()
350 	    !memcmp(adev->bios + tmp, "MOTA", 4)) {  in amdgpu_get_bios()
351 		adev->is_atom_bios = true;  in amdgpu_get_bios()
353 		adev->is_atom_bios = false;  in amdgpu_get_bios()
356 	DRM_DEBUG("%sBIOS detected\n", adev->is_atom_bios ? "ATOM" : "COM");  in amdgpu_get_bios()
359 	kfree(adev->bios);  in amdgpu_get_bios()
360 	adev->bios = NULL;  in amdgpu_get_bios()