37  * BIOS.
47 /* Check if current bios is an ATOM BIOS.
48  * Return true if it is ATOM BIOS. Otherwise, return false.
53 	uint8_t *bios = adev->bios;  in check_atom_bios()  local
55 	if (!bios || size < 0x49) {  in check_atom_bios()
60 	if (!AMD_IS_VALID_VBIOS(bios)) {  in check_atom_bios()
61 		dev_dbg(adev->dev, "VBIOS signature incorrect %x %x\n", bios[0],  in check_atom_bios()
62 			bios[1]);  in check_atom_bios()
66 	bios_header_start = bios[0x48] | (bios[0x49] << 8);  in check_atom_bios()
78 	if (!memcmp(bios + tmp, "ATOM", 4) ||  in check_atom_bios()
79 	    !memcmp(bios + tmp, "MOTA", 4)) {  in check_atom_bios()
89  * part of the system bios.  On boot, the system bios puts a
96 	uint8_t __iomem *bios;  in amdgpu_read_bios_from_vram()  local
108 	adev->bios = NULL;  in amdgpu_read_bios_from_vram()
110 	bios = ioremap_wc(vram_base, size);  in amdgpu_read_bios_from_vram()
111 	if (!bios)  in amdgpu_read_bios_from_vram()
114 	adev->bios = kmalloc(size, GFP_KERNEL);  in amdgpu_read_bios_from_vram()
115 	if (!adev->bios) {  in amdgpu_read_bios_from_vram()
116 		iounmap(bios);  in amdgpu_read_bios_from_vram()
120 	memcpy_fromio(adev->bios, bios, size);  in amdgpu_read_bios_from_vram()
121 	iounmap(bios);  in amdgpu_read_bios_from_vram()
124 		kfree(adev->bios);  in amdgpu_read_bios_from_vram()
133 	uint8_t __iomem *bios;  in amdgpu_read_bios()  local
136 	adev->bios = NULL;  in amdgpu_read_bios()
138 	bios = pci_map_rom(adev->pdev, &size);  in amdgpu_read_bios()
139 	if (!bios)  in amdgpu_read_bios()
142 	adev->bios = kzalloc(size, GFP_KERNEL);  in amdgpu_read_bios()
143 	if (adev->bios == NULL) {  in amdgpu_read_bios()
144 		pci_unmap_rom(adev->pdev, bios);  in amdgpu_read_bios()
148 	memcpy_fromio(adev->bios, bios, size);  in amdgpu_read_bios()
149 	pci_unmap_rom(adev->pdev, bios);  in amdgpu_read_bios()
152 		kfree(adev->bios);  in amdgpu_read_bios()
181 	adev->bios = kmalloc(len, GFP_KERNEL);  in amdgpu_read_bios_from_rom()
182 	if (!adev->bios) {  in amdgpu_read_bios_from_rom()
183 		DRM_ERROR("no memory to allocate for BIOS\n");  in amdgpu_read_bios_from_rom()
188 	/* read complete BIOS */  in amdgpu_read_bios_from_rom()
189 	amdgpu_asic_read_bios_from_rom(adev, adev->bios, len);  in amdgpu_read_bios_from_rom()
192 		kfree(adev->bios);  in amdgpu_read_bios_from_rom()
203 	void __iomem *bios;  in amdgpu_read_platform_bios()  local
205 	adev->bios = NULL;  in amdgpu_read_platform_bios()
210 	adev->bios = kzalloc(romlen, GFP_KERNEL);  in amdgpu_read_platform_bios()
211 	if (!adev->bios)  in amdgpu_read_platform_bios()
214 	bios = ioremap(rom, romlen);  in amdgpu_read_platform_bios()
215 	if (!bios)  in amdgpu_read_platform_bios()
218 	memcpy_fromio(adev->bios, bios, romlen);  in amdgpu_read_platform_bios()
219 	iounmap(bios);  in amdgpu_read_platform_bios()
228 	kfree(adev->bios);  in amdgpu_read_platform_bios()
233 /* ATRM is used to get the BIOS on the discrete cards in
242  * @bios: vbios image pointer
250 static int amdgpu_atrm_call(acpi_handle atrm_handle, uint8_t *bios,  in amdgpu_atrm_call()  argument
274 	memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);  in amdgpu_atrm_call()
314 	adev->bios = kmalloc(size, GFP_KERNEL);  in amdgpu_atrm_get_bios()
315 	if (!adev->bios) {  in amdgpu_atrm_get_bios()
316 		dev_err(adev->dev, "Unable to allocate bios\n");  in amdgpu_atrm_get_bios()
322 				       adev->bios,  in amdgpu_atrm_get_bios()
330 		kfree(adev->bios);  in amdgpu_atrm_get_bios()
390 			adev->bios = kmemdup(&vbios->VbiosContent,  in amdgpu_acpi_vfct_bios()
395 				kfree(adev->bios);  in amdgpu_acpi_vfct_bios()
435 	dev_err(adev->dev, "Unable to locate a BIOS ROM\n");  in amdgpu_get_bios_apu()
500 	dev_err(adev->dev, "Unable to locate a BIOS ROM\n");  in amdgpu_get_bios_dgpu()
522 /* helper function for soc15 and onwards to read bios from rom */
524 				     u8 *bios, u32 length_bytes)  in amdgpu_soc15_read_bios_from_rom()  argument
532 	if (bios == NULL)  in amdgpu_soc15_read_bios_from_rom()
544 	dw_ptr = (u32 *)bios;  in amdgpu_soc15_read_bios_from_rom()