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| author | Sven Schnelle <svens@linux.ibm.com> | 2026-09-09 11:29:53 +0200 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2026-09-10 08:43:35 +0900 |
| commit | d22c3e0088e85be8131f7a9283f759cdbb20726d (patch) | |
| tree | 9668df2aa27b26f850d3ba5ba1287e443803675c /Documentation/fb/tridentfb.rst | |
| download | linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.tar.gz linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.zip | |
selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tcgrafted
The current regex also matches symbols in modules, which makes the
test fail on s390 where name_show is present only once in the kernel,
but also multiple times in modules:
000001b1401cdc20 t name_show
000001b0c05e6c40 t name_show [mdev]
000001b0c0495f30 t name_show [i2c_core]
Fix this by changing the regular expression to only match the function
name.
Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/
Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'Documentation/fb/tridentfb.rst')
| -rw-r--r-- | Documentation/fb/tridentfb.rst | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/Documentation/fb/tridentfb.rst b/Documentation/fb/tridentfb.rst new file mode 100644 index 000000000..7921c9dee --- /dev/null +++ b/Documentation/fb/tridentfb.rst @@ -0,0 +1,78 @@ +========= +Tridentfb +========= + +Tridentfb is a framebuffer driver for some Trident chip based cards. + +The following list of chips is thought to be supported although not all are +tested: + +those from the TGUI series 9440/96XX and with Cyber in their names +those from the Image series and with Cyber in their names +those with Blade in their names (Blade3D,CyberBlade...) +the newer CyberBladeXP family + +All families are accelerated. Only PCI/AGP based cards are supported, +none of the older Tridents. +The driver supports 8, 16 and 32 bits per pixel depths. +The TGUI family requires a line length to be power of 2 if acceleration +is enabled. This means that range of possible resolutions and bpp is +limited comparing to the range if acceleration is disabled (see list +of parameters below). + +Known bugs: + +1. The driver randomly locks up on 3DImage975 chip with acceleration + enabled. The same happens in X11 (Xorg). +2. The ramdac speeds require some more fine tuning. It is possible to + switch resolution which the chip does not support at some depths for + older chips. + +How to use it? +============== + +When booting you can pass the video parameter:: + + video=tridentfb + +The parameters for tridentfb are concatenated with a ':' as in this example:: + + video=tridentfb:800x600-16@75,noaccel + +The second level parameters that tridentfb understands are: + +======== ===================================================================== +noaccel turns off acceleration (when it doesn't work for your card) + +fp use flat panel related stuff +crt assume monitor is present instead of fp + +center for flat panels and resolutions smaller than native size center the + image, otherwise use +stretch + +memsize integer value in KB, use if your card's memory size is misdetected. + look at the driver output to see what it says when initializing. + +memdiff integer value in KB, should be nonzero if your card reports + more memory than it actually has. For instance mine is 192K less than + detection says in all three BIOS selectable situations 2M, 4M, 8M. + Only use if your video memory is taken from main memory hence of + configurable size. Otherwise use memsize. + If in some modes which barely fit the memory you see garbage + at the bottom this might help by not letting change to that mode + anymore. + +nativex the width in pixels of the flat panel.If you know it (usually 1024 + 800 or 1280) and it is not what the driver seems to detect use it. + +bpp bits per pixel (8,16 or 32) +mode a mode name like 800x600-8@75 as described in + Documentation/fb/modedb.rst +======== ===================================================================== + +Using insane values for the above parameters will probably result in driver +misbehaviour so take care(for instance memsize=12345678 or memdiff=23784 or +nativex=93) + +Contact: jani@astechnix.ro |
