drm/radeon/radeon_bios.c

45  * part of the system bios.  On boot, the system bios puts a
51 	uint8_t __iomem *bios;
59 	rdev->bios = NULL;
61 	bios = ioremap(vram_base, size);
62 	if (!bios) {
66 	if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {
67 		iounmap(bios);
70 	rdev->bios = kmalloc(size, GFP_KERNEL);
71 	if (rdev->bios == NULL) {
72 		iounmap(bios);
75 	memcpy_fromio(rdev->bios, bios, size);
76 	iounmap(bios);
82 	uint8_t __iomem *bios, val1, val2;
85 	rdev->bios = NULL;
87 	bios = pci_map_rom(rdev->pdev, &size);
88 	if (!bios) {
92 	val1 = readb(&bios[0]);
93 	val2 = readb(&bios[1]);
96 		pci_unmap_rom(rdev->pdev, bios);
99 	rdev->bios = kzalloc(size, GFP_KERNEL);
100 	if (rdev->bios == NULL) {
101 		pci_unmap_rom(rdev->pdev, bios);
104 	memcpy_fromio(rdev->bios, bios, size);
105 	pci_unmap_rom(rdev->pdev, bios);
113 	void __iomem *bios;
115 	rdev->bios = NULL;
120 	rdev->bios = kzalloc(romlen, GFP_KERNEL);
121 	if (!rdev->bios)
124 	bios = ioremap(rom, romlen);
125 	if (!bios)
128 	memcpy_fromio(rdev->bios, bios, romlen);
129 	iounmap(bios);
131 	if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa)
136 	kfree(rdev->bios);
150  * @bios: vbios image pointer
158 static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
182 	memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
222 	rdev->bios = kmalloc(size, GFP_KERNEL);
223 	if (!rdev->bios) {
224 		DRM_ERROR("Unable to allocate bios\n");
230 				       rdev->bios,
237 	if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
238 		kfree(rdev->bios);
641 			rdev->bios = kmemdup(&vbios->VbiosContent,
644 			if (rdev->bios)
680 	if (!r || rdev->bios == NULL) {
682 		rdev->bios = NULL;
685 	if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
686 		printk("BIOS signature incorrect %x %x\n", rdev->bios[0], rdev->bios[1]);
701 	if (!memcmp(rdev->bios + tmp, "ATOM", 4) ||
702 	    !memcmp(rdev->bios + tmp, "MOTA", 4)) {
711 	kfree(rdev->bios);
712 	rdev->bios = NULL;