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| author | Dr. David Alan Gilbert <linux@treblig.org> | 2023-08-25 15:27:54 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-01 23:09:02 +1100 |
| commit | 0ebc7feae79ac07772a20382eebd8c3503313714 (patch) | |
| tree | 6d0f6f37d33952d5a420aeb38e35de221bfdce84 /arch/powerpc/Kconfig.debug | |
| parent | c945e6f453a361b0e9daddd2be9c099d1b80d6f8 (diff) | |
| download | linux-0ebc7feae79ac07772a20382eebd8c3503313714.tar.gz linux-0ebc7feae79ac07772a20382eebd8c3503313714.tar.bz2 linux-0ebc7feae79ac07772a20382eebd8c3503313714.zip | |
powerpc: Use shared font data
PowerPC has a 'btext' font used for the console which is almost identical
to the shared font_sun8x16, so use it rather than duplicating the data.
They were actually identical until about a decade ago when
commit bcfbeecea11c ("drivers: console: font_: Change a glyph from
"broken bar" to "vertical line"")
which changed the | in the shared font to be a solid
bar rather than a broken bar. That's the only difference.
This was originally spotted by the PMF source code analyser, which
noticed that sparc does the same thing with the same data, and they
also share a bunch of functions to manipulate the data. I've previously
posted a near identical patch for sparc.
Tested very lightly with a boot without FS in qemu.
Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230825142754.1487900-1-linux@treblig.org
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 2a54fadbeaf5..50ff3359cde9 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -147,6 +147,8 @@ config BDI_SWITCH config BOOTX_TEXT bool "Support for early boot text console (BootX or OpenFirmware only)" depends on PPC_BOOK3S + select FONT_SUN8x16 + select FONT_SUPPORT help Say Y here to see progress messages from the boot firmware in text mode. Requires either BootX or Open Firmware. |