40  * BIOS.
45  * part of the system bios.  On boot, the system bios puts a
51 	uint8_t __iomem *bios;  in igp_read_bios_from_vram()  local
59 	rdev->bios = NULL;  in igp_read_bios_from_vram()
61 	bios = ioremap(vram_base, size);  in igp_read_bios_from_vram()
62 	if (!bios) {  in igp_read_bios_from_vram()
66 	if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {  in igp_read_bios_from_vram()
67 		iounmap(bios);  in igp_read_bios_from_vram()
70 	rdev->bios = kmalloc(size, GFP_KERNEL);  in igp_read_bios_from_vram()
71 	if (rdev->bios == NULL) {  in igp_read_bios_from_vram()
72 		iounmap(bios);  in igp_read_bios_from_vram()
75 	memcpy_fromio(rdev->bios, bios, size);  in igp_read_bios_from_vram()
76 	iounmap(bios);  in igp_read_bios_from_vram()
82 	uint8_t __iomem *bios, val1, val2;  in radeon_read_bios()  local
85 	rdev->bios = NULL;  in radeon_read_bios()
87 	bios = pci_map_rom(rdev->pdev, &size);  in radeon_read_bios()
88 	if (!bios) {  in radeon_read_bios()
92 	val1 = readb(&bios[0]);  in radeon_read_bios()
93 	val2 = readb(&bios[1]);  in radeon_read_bios()
96 		pci_unmap_rom(rdev->pdev, bios);  in radeon_read_bios()
99 	rdev->bios = kzalloc(size, GFP_KERNEL);  in radeon_read_bios()
100 	if (rdev->bios == NULL) {  in radeon_read_bios()
101 		pci_unmap_rom(rdev->pdev, bios);  in radeon_read_bios()
104 	memcpy_fromio(rdev->bios, bios, size);  in radeon_read_bios()
105 	pci_unmap_rom(rdev->pdev, bios);  in radeon_read_bios()
113 	void __iomem *bios;  in radeon_read_platform_bios()  local
115 	rdev->bios = NULL;  in radeon_read_platform_bios()
120 	rdev->bios = kzalloc(romlen, GFP_KERNEL);  in radeon_read_platform_bios()
121 	if (!rdev->bios)  in radeon_read_platform_bios()
124 	bios = ioremap(rom, romlen);  in radeon_read_platform_bios()
125 	if (!bios)  in radeon_read_platform_bios()
128 	memcpy_fromio(rdev->bios, bios, romlen);  in radeon_read_platform_bios()
129 	iounmap(bios);  in radeon_read_platform_bios()
131 	if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa)  in radeon_read_platform_bios()
136 	kfree(rdev->bios);  in radeon_read_platform_bios()
141 /* ATRM is used to get the BIOS on the discrete cards in
150  * @bios: vbios image pointer
158 static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,  in radeon_atrm_call()  argument
182 	memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);  in radeon_atrm_call()
222 	rdev->bios = kmalloc(size, GFP_KERNEL);  in radeon_atrm_get_bios()
223 	if (!rdev->bios) {  in radeon_atrm_get_bios()
224 		DRM_ERROR("Unable to allocate bios\n");  in radeon_atrm_get_bios()
230 				       rdev->bios,  in radeon_atrm_get_bios()
237 	if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {  in radeon_atrm_get_bios()
238 		kfree(rdev->bios);  in radeon_atrm_get_bios()
641 			rdev->bios = kmemdup(&vbios->VbiosContent,  in radeon_acpi_vfct_bios()
644 			if (rdev->bios)  in radeon_acpi_vfct_bios()
680 	if (!r || rdev->bios == NULL) {  in radeon_get_bios()
681 		DRM_ERROR("Unable to locate a BIOS ROM\n");  in radeon_get_bios()
682 		rdev->bios = NULL;  in radeon_get_bios()
685 	if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {  in radeon_get_bios()
686 		printk("BIOS signature incorrect %x %x\n", rdev->bios[0], rdev->bios[1]);  in radeon_get_bios()
692 		DRM_INFO("Not an x86 BIOS ROM, not using.\n");  in radeon_get_bios()
701 	if (!memcmp(rdev->bios + tmp, "ATOM", 4) ||  in radeon_get_bios()
702 	    !memcmp(rdev->bios + tmp, "MOTA", 4)) {  in radeon_get_bios()
711 	kfree(rdev->bios);  in radeon_get_bios()
712 	rdev->bios = NULL;  in radeon_get_bios()