diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 62 |
1 files changed, 20 insertions, 42 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 865eddfa30a..9a69e0b131b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -2052,45 +2052,27 @@ uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) static bool NVInitVBIOS(struct drm_device *dev) { struct nouveau_drm *drm = nouveau_drm(dev); - struct nvbios *bios = &drm->vbios; - - memset(bios, 0, sizeof(struct nvbios)); - spin_lock_init(&bios->lock); - bios->dev = dev; - - bios->data = nouveau_bios(drm->device)->data; - bios->length = nouveau_bios(drm->device)->size; - return true; -} + struct nouveau_bios *bios = nouveau_bios(drm->device); + struct nvbios *legacy = &drm->vbios; + + memset(legacy, 0, sizeof(struct nvbios)); + spin_lock_init(&legacy->lock); + legacy->dev = dev; + + legacy->data = bios->data; + legacy->length = bios->size; + if (bios->bit_offset) { + legacy->type = NVBIOS_BIT; + legacy->offset = bios->bit_offset; + return !parse_bit_structure(legacy, legacy->offset + 6); + } else + if (bios->bmp_offset) { + legacy->type = NVBIOS_BMP; + legacy->offset = bios->bmp_offset; + return !parse_bmp_structure(dev, legacy, legacy->offset); + } -static int nouveau_parse_vbios_struct(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - struct nvbios *bios = &drm->vbios; - const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' }; - const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 }; - int offset; - - offset = findstr(bios->data, bios->length, - bit_signature, sizeof(bit_signature)); - if (offset) { - NV_INFO(drm, "BIT BIOS found\n"); - bios->type = NVBIOS_BIT; - bios->offset = offset; - return parse_bit_structure(bios, offset + 6); - } - - offset = findstr(bios->data, bios->length, - bmp_signature, sizeof(bmp_signature)); - if (offset) { - NV_INFO(drm, "BMP BIOS found\n"); - bios->type = NVBIOS_BMP; - bios->offset = offset; - return parse_bmp_structure(dev, bios, offset); - } - - NV_ERROR(drm, "No known BIOS signature found\n"); - return -ENODEV; + return false; } int @@ -2146,10 +2128,6 @@ nouveau_bios_init(struct drm_device *dev) if (!NVInitVBIOS(dev)) return -ENODEV; - ret = nouveau_parse_vbios_struct(dev); - if (ret) - return ret; - ret = parse_dcb_table(dev, bios); if (ret) return ret; |