Background: In August 2014, lower-cased filename's files are added in the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/radeon?id=f333bd435c0b6745cbc4fae3326725d77bf57c82 This commit says those files use the new header format. The radeon's drmkms driver basically try to use lower case's file first and then try the upper case's one. [*1] After the above commit, usually lower-case's files have been added and updated. Two exceptions: TAHITI_vce.bin (only uppercase exists) BONAIRE_uvd.bin (both upper and lowe exist and both updated) Some old (upper-case'd) firmware might be maintained anymore. Now: Number of upper-cased filename's files: 158 Number of lower-cased filename's files: 66 Both lower-cased and upper-cased: 65 kaveri_mec2.bin has only lowercase one. (see also: http://mail-index.netbsd.org/tech-x11/2019/04/07/msg001953.html) [*1] For _mc*.bin: 1st try: lower-case _mc.bin 2nd try: upper-case _mc2.bin 3rd try: upper-case _mc.bin So, options are: a) Remove duplicated upper-cased files. pros: Simple. It's not required to modify radeon driver itself. It also works with new kernel with old filesysysm. cons: If the driver failed to load the lower cased firmware, driver can't read the upper-cased firmware. b) Rename upper-case'd file to another name e.g.: foo_bar_old.bin pros: It can be keep the driver's behavior the same as linux's. cons: We have to modify many files and lines. If we support new kernel + old filesystem, we should modify the driver to load FOO_BAR.bin first and then FOO_BAR_old.bin. c) keep the current status as it is. pros: Any additional work is not required. cons: have trouble on case-insensitive file system. d) Any other options. -- ----------------------------------------------- SAITOH Masanobu (msai...@execsw.org msai...@netbsd.org)