return false;
}
-static int
-score_vbios(struct nvbios *bios, const bool writeable)
-{
- if (!bios->data || bios->data[0] != 0x55 || bios->data[1] != 0xAA) {
- NV_TRACEWARN(bios->dev, "... BIOS signature not found\n");
- return 0;
- }
-
- if (nv_cksum(bios->data, bios->data[2] * 512)) {
- NV_TRACEWARN(bios->dev, "... BIOS checksum invalid\n");
- /* if a ro image is somewhat bad, it's probably all rubbish */
- return writeable ? 2 : 1;
- }
-
- NV_TRACE(bios->dev, "... appears to be valid\n");
- return 3;
-}
-
-static void
-bios_shadow_prom(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 pcireg, access;
- u16 pcir;
- int i;
-
- /* enable access to rom */
- if (dev_priv->card_type >= NV_50)
- pcireg = 0x088050;
- else
- pcireg = NV_PBUS_PCI_NV_20;
- access = nv_mask(dev, pcireg, 0x00000001, 0x00000000);
-
- /* bail if no rom signature, with a workaround for a PROM reading
- * issue on some chipsets. the first read after a period of
- * inactivity returns the wrong result, so retry the first header
- * byte a few times before giving up as a workaround
- */
- i = 16;
- do {
- if (nv_rd08(dev, NV_PROM_OFFSET + 0) == 0x55)
- break;
- } while (i--);
-
- if (!i || nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa)
- goto out;
-
- /* additional check (see note below) - read PCI record header */
- pcir = nv_rd08(dev, NV_PROM_OFFSET + 0x18) |
- nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8;
- if (nv_rd08(dev, NV_PROM_OFFSET + pcir + 0) != 'P' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir + 1) != 'C' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir + 2) != 'I' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir + 3) != 'R')
- goto out;
-
- /* read entire bios image to system memory */
- bios->length = nv_rd08(dev, NV_PROM_OFFSET + 2) * 512;
- bios->data = kmalloc(bios->length, GFP_KERNEL);
- if (bios->data) {
- for (i = 0; i < bios->length; i++)
- bios->data[i] = nv_rd08(dev, NV_PROM_OFFSET + i);
- }
-
-out:
- /* disable access to rom */
- nv_wr32(dev, pcireg, access);
-}
-
-static void
-bios_shadow_pramin(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 bar0 = 0;
- int i;
-
- if (dev_priv->card_type >= NV_50) {
- u64 addr = (u64)(nv_rd32(dev, 0x619f04) & 0xffffff00) << 8;
- if (!addr) {
- addr = (u64)nv_rd32(dev, 0x001700) << 16;
- addr += 0xf0000;
- }
-
- bar0 = nv_mask(dev, 0x001700, 0xffffffff, addr >> 16);
- }
-
- /* bail if no rom signature */
- if (nv_rd08(dev, NV_PRAMIN_OFFSET + 0) != 0x55 ||
- nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa)
- goto out;
-
- bios->length = nv_rd08(dev, NV_PRAMIN_OFFSET + 2) * 512;
- bios->data = kmalloc(bios->length, GFP_KERNEL);
- if (bios->data) {
- for (i = 0; i < bios->length; i++)
- bios->data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i);
- }
-
-out:
- if (dev_priv->card_type >= NV_50)
- nv_wr32(dev, 0x001700, bar0);
-}
-
-static void
-bios_shadow_pci(struct nvbios *bios)
-{
- struct pci_dev *pdev = bios->dev->pdev;
- size_t length;
-
- if (!pci_enable_rom(pdev)) {
- void __iomem *rom = pci_map_rom(pdev, &length);
- if (rom && length) {
- bios->data = kmalloc(length, GFP_KERNEL);
- if (bios->data) {
- memcpy_fromio(bios->data, rom, length);
- bios->length = length;
- }
- }
- if (rom)
- pci_unmap_rom(pdev, rom);
-
- pci_disable_rom(pdev);
- }
-}
-
-static void
-bios_shadow_acpi(struct nvbios *bios)
-{
- struct pci_dev *pdev = bios->dev->pdev;
- int cnt = 65536 / ROM_BIOS_PAGE;
- int ret;
-
- if (!nouveau_acpi_rom_supported(pdev))
- return;
-
- bios->data = kmalloc(cnt * ROM_BIOS_PAGE, GFP_KERNEL);
- if (!bios->data)
- return;
-
- bios->length = 0;
- while (cnt--) {
- ret = nouveau_acpi_get_bios_chunk(bios->data, bios->length,
- ROM_BIOS_PAGE);
- if (ret != ROM_BIOS_PAGE)
- return;
-
- bios->length += ROM_BIOS_PAGE;
- }
-}
-
-struct methods {
- const char desc[8];
- void (*shadow)(struct nvbios *);
- const bool rw;
- int score;
- u32 size;
- u8 *data;
-};
-
-static bool
-bios_shadow(struct drm_device *dev)
-{
- struct methods shadow_methods[] = {
- { "PRAMIN", bios_shadow_pramin, true, 0, 0, NULL },
- { "PROM", bios_shadow_prom, false, 0, 0, NULL },
- { "ACPI", bios_shadow_acpi, true, 0, 0, NULL },
- { "PCIROM", bios_shadow_pci, true, 0, 0, NULL },
- {}
- };
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct methods *mthd, *best;
- const struct firmware *fw;
- char fname[32];
- int ret;
-
- if (nouveau_vbios) {
- /* try to match one of the built-in methods */
- mthd = shadow_methods;
- do {
- if (strcasecmp(nouveau_vbios, mthd->desc))
- continue;
- NV_INFO(dev, "VBIOS source: %s\n", mthd->desc);
-
- mthd->shadow(bios);
- mthd->score = score_vbios(bios, mthd->rw);
- if (mthd->score)
- return true;
- } while ((++mthd)->shadow);
-
- /* attempt to load firmware image */
- snprintf(fname, sizeof(fname), "nouveau/%s", nouveau_vbios);
- ret = request_firmware(&fw, fname, &dev->pdev->dev);
- if (ret == 0) {
- bios->length = fw->size;
- bios->data = kmemdup(fw->data, fw->size, GFP_KERNEL);
- release_firmware(fw);
-
- NV_INFO(dev, "VBIOS image: %s\n", nouveau_vbios);
- if (score_vbios(bios, 1))
- return true;
-
- kfree(bios->data);
- bios->data = NULL;
- }
-
- NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
- }
-
- mthd = shadow_methods;
- do {
- NV_TRACE(dev, "Checking %s for VBIOS\n", mthd->desc);
- mthd->shadow(bios);
- mthd->score = score_vbios(bios, mthd->rw);
- mthd->size = bios->length;
- mthd->data = bios->data;
- bios->data = NULL;
- } while (mthd->score != 3 && (++mthd)->shadow);
-
- mthd = shadow_methods;
- best = mthd;
- do {
- if (mthd->score > best->score) {
- kfree(best->data);
- best = mthd;
- }
- } while ((++mthd)->shadow);
-
- if (best->score) {
- NV_TRACE(dev, "Using VBIOS from %s\n", best->desc);
- bios->length = best->size;
- bios->data = best->data;
- return true;
- }
-
- NV_ERROR(dev, "No valid VBIOS image found\n");
- return false;
-}
-
struct init_tbl_entry {
char *name;
uint8_t id;
spin_lock_init(&bios->lock);
bios->dev = dev;
- return bios_shadow(dev);
+ return _nv_bios(dev, &bios->data, &bios->length);
}
static int nouveau_parse_vbios_struct(struct drm_device *dev)
nouveau_mxm_fini(dev);
nouveau_i2c_fini(dev);
-
- kfree(dev_priv->vbios.data);
}
projects / mirror_ubuntu-disco-kernel.git / commitdiff