diff options
Diffstat (limited to 'include/linux/screen_info.h')
| -rw-r--r-- | include/linux/screen_info.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h index 75303c126285..923d68e07679 100644 --- a/include/linux/screen_info.h +++ b/include/linux/screen_info.h @@ -49,6 +49,16 @@ static inline u64 __screen_info_lfb_size(const struct screen_info *si, unsigned return lfb_size; } +static inline bool __screen_info_vbe_mode_nonvga(const struct screen_info *si) +{ + /* + * VESA modes typically run on VGA hardware. Set bit 5 signals that this + * is not the case. Drivers can then not make use of VGA resources. See + * Sec 4.4 of the VBE 2.0 spec. + */ + return si->vesa_attributes & BIT(5); +} + static inline unsigned int __screen_info_video_type(unsigned int type) { switch (type) { @@ -116,8 +126,17 @@ static inline unsigned int screen_info_video_type(const struct screen_info *si) return VIDEO_TYPE_CGA; } +static inline u32 __screen_info_vesapm_info_base(const struct screen_info *si) +{ + if (si->vesapm_seg < 0xc000) + return 0; + return (si->vesapm_seg << 4) + si->vesapm_off; +} + ssize_t screen_info_resources(const struct screen_info *si, struct resource *r, size_t num); +u32 __screen_info_lfb_bits_per_pixel(const struct screen_info *si); + #if defined(CONFIG_PCI) void screen_info_apply_fixups(void); struct pci_dev *screen_info_pci_dev(const struct screen_info *si); |